Automatic grinding and screening treatment equipment, sample analysis equipment and sample preparation method

Abstract

The invention relates to the technical field of mineral engineering, in particular to automatic grinding and screening treatment equipment, sample analysis equipment and a sample preparation method. The automatic grinding and screening treatment equipment is used for ore sample preparation and comprises a grinding assembly used for receiving samples, a grinding mechanism used for grinding the samples, and the samples are discharged from the bottom of the grinding assembly; the tail end screening assembly is located below the grinding assembly, the first rotating mechanism is used for pushing to screen samples, and the samples are discharged from the bottom of the tail end screening assembly; the rotating shaft penetrates through the grinding assembly and the tail end screening assembly and is connected with the grinding mechanism and the first rotating mechanism to drive the grinding mechanism and the first rotating mechanism to rotate. And the material receiving mechanism is arranged below the tail end screening assembly to receive the target sample. The automatic grinding and screening treatment equipment can integrate the functions of grinding, screening and collecting, has higher automation level and integration level, can effectively improve the ore sample preparation efficiency, reduces the energy consumption of ore sample preparation and the occupied space of the equipment, can effectively reduce the operation cost, and is convenient to operate and maintain.

Description

Technical Field

[0001] The present disclosure relates to the technical field of mining engineering, and in particular to an automatic grinding and screening processing device, a sample analysis device and a sample preparation method. Background Art

[0002] In the process of testing ore samples, there are certain requirements for ore samples, such as particle size, dryness, etc. Therefore, it is necessary to process the ore samples through multiple steps such as sampling, grinding, screening, etc., in order to perform the testing of ore samples. Generally, ore samples are processed in sequence by automatic processing equipment such as crushers and grinders to obtain ore samples that meet the testing conditions. However, the current automatic ore sample processing equipment has a single function, and multiple equipment with different functions are required to form an assembly line to realize ore sampling. It consumes a lot of energy, and the equipment occupies a large space and is difficult to maintain. Summary of the invention

[0003] In order to overcome the problems existing in the related art, an exemplary embodiment of the present disclosure provides an automatic grinding and screening processing equipment for ore sampling, including: a grinding component, used to receive samples, the grinding mechanism of the grinding component is used to grind the samples, and the ground samples are discharged from the bottom of the grinding component; a terminal screening component, located below the grinding component, used to receive the ground samples, the first rotating mechanism of the terminal screening component is used to push to screen the samples, and the screened samples are discharged from the bottom of the terminal screening component; a rotating shaft, which is arranged through the grinding component and the terminal screening component, and is fixedly connected to the grinding mechanism and the first rotating mechanism respectively, so as to drive the grinding mechanism and the first rotating mechanism to rotate by rotation; a material receiving mechanism, which is arranged below the terminal screening component, and is used to receive the target sample discharged from the bottom of the terminal screening component.

[0004] In some embodiments, the grinding assembly also includes: a grinding inner cylinder with a feed port on the top, the bottom plate of the grinding inner cylinder is used to receive samples and a grinding shaft hole is opened in the center for rotation with the rotating shaft, and the side wall of the grinding inner cylinder is provided with a sieve hole; the grinding mechanism is arranged in the grinding inner cylinder for grinding the sample; a grinding outer cylinder is arranged on the outside of the grinding inner cylinder and coaxially with the grinding inner cylinder, the side wall of the grinding outer cylinder is spaced apart from the side wall of the grinding inner cylinder, and the ground sample passes through the sieve hole and is discharged from the bottom of the grinding outer cylinder.

[0005] In some embodiments, the terminal screening assembly also includes: a terminal inner cylinder, the bottom plate of which is used to receive the ground sample and has a terminal shaft hole through the center for rotationally cooperating with the rotating shaft, and the side wall of the terminal inner cylinder is provided with a screen; the first rotating mechanism is arranged in the terminal inner cylinder, and is used to push the sample to move toward the screen; a terminal outer cylinder, which is arranged on the outside of the terminal inner cylinder and is coaxial with the terminal inner cylinder, and the side wall of the terminal outer cylinder is spaced apart from the side wall of the terminal inner cylinder, and the sample screened by the screen is discharged from the bottom of the terminal outer cylinder.

[0006] In some embodiments, the side wall of the grinding inner cylinder is provided with at least one grinding waste discharge port for discharging the waste remaining in the grinding inner cylinder from the bottom of the grinding outer cylinder; the side wall of the terminal inner cylinder is provided with at least one terminal waste discharge port for discharging the waste remaining in the terminal inner cylinder from the bottom of the terminal outer cylinder; the material receiving mechanism is also used to receive the waste discharged from the bottom of the terminal screening assembly.

[0007] In some embodiments, the automatic grinding and screening processing equipment also includes: a plurality of discharge valves, which are arranged on the grinding outer cylinder and cooperate with the grinding waste outlet to close or open the grinding waste outlet, and are also arranged on the terminal outer cylinder and cooperate with the terminal waste outlet to close or open the terminal waste outlet.

[0008] In some embodiments, the discharge valve includes: a discharge shell, including a hollow spring mounting portion and a hollow ball track, one end of the spring mounting portion is connected to the grinding outer cylinder or the terminal outer cylinder, and the other end is connected to the grinding waste discharge port or the terminal waste discharge port, and a discharge port is opened below the spring mounting portion for discharging the waste; a piston is arranged at one end of the spring mounting portion close to the discharge port, and is used to close or open the discharge port so that the waste falls from the discharge port; a spring is arranged at the spring mounting portion, and one end close to the discharge port is connected to the piston, and is used to move the piston by the expansion and contraction of the spring; a ball is arranged in the ball track, and the spring can be compressed when the ball is located on the side away from the spring mounting portion, and the piston is blocked when the ball is located on the side close to the spring mounting portion.

[0009] In some embodiments, the material receiving mechanism includes: a sample tube for receiving the target sample that has completed screening and is discharged from the bottom of the end screening component; a waste tube for receiving the waste discharged from the bottom of the end screening component; and a rotating cylinder for driving a baffle to rotate to block the sample tube or the waste tube, so that the target sample falls into the sample tube, or the waste falls into the waste tube.

[0010] In some embodiments, the automatic grinding and screening processing equipment further includes: a middle screening assembly, located below the grinding assembly and above the end screening assembly, for receiving the ground sample;

[0011] The middle screening assembly comprises: a middle inner cylinder, the bottom plate of which is used to receive the ground sample and the center of which is provided with a middle shaft hole for rotationally cooperating with the rotating shaft, and the side wall of the middle inner cylinder is provided with a screen; a second rotating mechanism is provided in the middle inner cylinder and is installed on the rotating shaft for pushing the sample to move toward the screen;

[0012] The middle outer cylinder is arranged outside the middle inner cylinder and coaxially with the middle inner cylinder. The side wall of the middle outer cylinder is spaced apart from the side wall of the middle inner cylinder. The sample screened by the sieve is discharged from the bottom of the middle outer cylinder to the terminal screening component.

[0013] In some embodiments, the mesh size of the screen provided in the end screening component is greater than the mesh size of the screen provided in the middle screening component.

[0014] In some embodiments, the automatic grinding and screening processing equipment also includes a brush, which is respectively arranged at the end of the first rotating mechanism and the end of the second rotating mechanism, and is used to clean the inner wall of the end screening component and the middle screening component.

[0015] In some embodiments, the grinding mechanism includes: a rotating component mounted on the rotating shaft, the rotating component extending radially outward to form a mounting portion; a grinding sheet located on the peripheral side of the rotating component and mounted on the mounting portion of the rotating component for grinding the sample.

[0016] In some embodiments, the automatic grinding and screening processing equipment also includes: a suction mechanism for sucking the sample from the outside; and a feeding mechanism connected to the top of the grinding component for feeding the sample sucked by the suction mechanism into the grinding component.

[0017] In some embodiments, the automatic grinding and screening processing equipment further includes: an equipment housing, which is arranged on the outer peripheral side of the grinding component and the terminal screening component.

[0018] In some embodiments, the automatic grinding and screening processing equipment further includes: a drying component, which is fixedly arranged on the inner side of the equipment housing, located on the outer peripheral side of the grinding component and the outer peripheral side of the terminal screening component, and is used to dry the sample.

[0019] In some embodiments, the automatic grinding and screening processing equipment further includes: a blower installed in the equipment housing, for blowing gas into the equipment housing to clean the grinding component and the terminal screening component.

[0020] In some embodiments, the automatic grinding and screening processing equipment further includes: a vibrator, which is disposed on the outer wall of the grinding component and the outer wall of the terminal screening component, and is used for vibrating to clean the grinding component and the terminal screening component.

[0021] In a second aspect, the present disclosure further provides a sample analysis device, comprising: an automatic grinding and screening processing device as described in any of the aforementioned embodiments; a packaging device, connected to the material receiving mechanism, for receiving and packaging the samples discharged by the material receiving mechanism; and a detection device, for detecting the packaged samples.

[0022] In the third aspect, the present disclosure also provides a sample preparation method, which is applied to the automatic grinding and screening processing equipment described in any of the aforementioned embodiments, wherein the sample preparation method includes: receiving the sample through the grinding component, grinding the sample, and discharging the ground sample; receiving the ground sample through the end screening component, screening the sample, and discharging the target sample; receiving the target sample through the material receiving mechanism.

[0023] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0024] Through the automatic grinding and screening processing equipment provided by the present disclosure, the grinding mechanism in the grinding assembly is driven by the rotating shaft to grind the sample, and the ground sample is finely screened by the terminal screening assembly, so as to obtain an ore sample that meets the subsequent detection requirements, and finally the screened ore sample is collected by the collecting mechanism. The automatic grinding and screening processing equipment provided by the present disclosure can integrate the functions of grinding, screening and collection, has a high level of automation and integration, can effectively improve the efficiency of ore sample preparation, can reduce the energy consumption of ore sample preparation and the space occupied by the equipment, can effectively reduce the operating cost, and is easy to operate and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention may be better understood by describing exemplary embodiments of the present invention in conjunction with the accompanying drawings, in which:

[0026] Figure 1 It is a schematic diagram of the structure of an automatic grinding and screening processing equipment according to an exemplary embodiment of the disclosure;

[0027] Figure 2 is a cross-sectional view of an automatic grinding and screening processing device according to an exemplary embodiment of the disclosure;

[0028] Figure 3 is a schematic diagram of a rotating shaft structure according to an exemplary embodiment of the disclosure;

[0029] Figure 4 It is a schematic diagram of the structure of a grinding assembly and a terminal screening assembly according to an exemplary embodiment of the disclosure;

[0030] Figure 5 is a cross-sectional view of a grinding assembly and a terminal screening assembly according to an exemplary embodiment of the disclosure;

[0031] Figure 6 is a schematic diagram of a discharge valve structure according to an exemplary embodiment of the disclosure;

[0032] Figure 7 is a schematic diagram of a discharge valve structure according to another exemplary embodiment of the present disclosure;

[0033] Figure 8 It is a schematic diagram of the structure of a material receiving mechanism according to an exemplary embodiment of the disclosure;

[0034] Fig. 9 is a schematic diagram of a grinding mechanism structure according to an exemplary embodiment of the disclosure;

[0035] Fig.10 is a schematic structural diagram of an automatic grinding and screening processing device according to another exemplary embodiment of the present disclosure;

[0036] Fig.11 is a schematic cross-sectional view of the structure of an automatic grinding and screening processing device according to another exemplary embodiment of the present disclosure;

[0037] Fig.12 is a schematic structural diagram of a sample analysis device according to another exemplary embodiment of the present disclosure;

[0038] Fig.13 It is a flow chart of a sample preparation method according to an exemplary embodiment of the disclosure. DETAILED DESCRIPTION

[0039] The specific embodiments of the present invention will be described below. It should be noted that in the specific description of these embodiments, in order to provide a concise description, it is impossible for this specification to provide a detailed description of all the features of the actual embodiments. It should be understood that in the actual implementation of any embodiment, just as in the process of any engineering project or design project, in order to achieve the specific goals of the developer and to meet system-related or business-related restrictions, various specific decisions are often made, and this will also change from one embodiment to another. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the content disclosed by the present invention, some changes such as design, manufacturing or production based on the technical content disclosed in this disclosure are just conventional technical means, and should not be understood as insufficient content of this disclosure.

[0040] Unless otherwise defined, the technical or scientific terms used in the claims and the specification shall have the usual meaning understood by persons with ordinary skills in the technical field to which the invention belongs. The words "first", "second" and similar words used in the patent application specification and the claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limitation, but indicate the existence of at least one. "Include" or "comprises" and other similar words mean that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalent elements, and do not exclude other elements or objects. "Connected" or "connected" and other similar words are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0041] To overcome the problems existing in the related technologies, such as Figure 1 , Figure 2 As shown, an exemplary embodiment of the present disclosure provides an automatic grinding and screening processing device 100 for ore sampling, which may include: a grinding component 110, a terminal screening component 120, a rotating shaft 130 and a material receiving mechanism 140.

[0042] The grinding assembly 110 is used to receive the sample. The grinding mechanism 111 of the grinding assembly 110 is used to grind the sample. The ground sample is discharged from the bottom of the grinding assembly 110. The grinding assembly 110 may be provided with an inlet for receiving the sample. The ore sample to be processed may enter the grinding assembly 110 through the inlet. Figure 2As shown, the grinding assembly 110 may be provided with a grinding mechanism 111 for grinding samples. The grinding mechanism 111 processes ore samples, and can crush large particles of ore samples. By grinding, samples with smaller particles are obtained, so that the particle size of the ore samples meets the subsequent detection requirements, thereby improving the sample quality. A discharge port may be provided at the bottom of the grinding assembly 110, and the ground sample may fall from the discharge port at the bottom of the grinding assembly 110 to the subsequent processing assembly for subsequent screening.

[0043] The terminal screening component 120 is located below the grinding component 110 and is used to receive the ground sample. The first rotating mechanism 121 of the terminal screening component 120 is used to push and screen the sample. The screened sample is discharged from the bottom of the terminal screening component 120. The terminal screening component 120 can receive the sample falling from the bottom of the grinding component 110 and screen the sample. Figure 2 As shown, the terminal screening component 120 is located below the grinding component 110. A through hole for sample entry may be provided at the top of the terminal screening component 120. The diameter of the through hole may be greater than or equal to the diameter of the discharge port at the bottom of the grinding component 110 to ensure that the terminal screening component 120 can receive all samples falling from the bottom of the grinding component 110 to avoid sample leakage. The terminal screening component 120 may be provided with a screen 170 for screening samples with smaller particle sizes. The mesh number of the screen 170 may be determined according to the detection requirements of subsequent equipment. Through the screen 170 of the terminal screening component 120 and the first rotating mechanism 121, the sample falling into the terminal screening component 120 can be pushed to the screen 170 by the first rotating mechanism 121, so that the sample passes through the screen 170. The sample with a smaller particle size can pass through the screen 170 and be discharged outward from the bottom of the terminal screening component 120 to the receiving mechanism 140, while the sample with a larger particle size cannot pass through the screen 170. Through the terminal screening component 120, samples with different particle sizes after grinding can be screened, and only samples with a particle size that meets the requirements are discharged.

[0044] The rotating shaft 130 is disposed through the grinding assembly 110 and the terminal screening assembly 120, and is fixedly connected to the grinding mechanism 111 and the first rotating mechanism 121 respectively, so as to drive the grinding mechanism 111 and the first rotating mechanism 121 to rotate. Figure 2 , Figure 3As shown, the grinding assembly 110 and the terminal screening assembly 120 may be respectively provided with shaft holes for the rotation shaft 130 to pass through, so that the rotation shaft 130 can be arranged through the grinding assembly 110 and the terminal screening assembly 120. The rotation shaft 130 can be connected to the grinding mechanism 111, so that the rotation of the rotation shaft 130 can drive the grinding mechanism 111 to move, so that the grinding mechanism 111 can grind the sample. The connection between the rotation shaft 130 and the grinding mechanism 111 can be detachable, so that the grinding mechanism 111 can be easily replaced and repaired. Figure 3 As shown, the rotating shaft 130 can be connected to the first rotating mechanism 121, so that the rotation of the rotating shaft 130 can drive the movement of the first rotating mechanism 121, so that the first rotating mechanism 121 can rotate and push the sample in the terminal screening assembly 120, so that the sample passes through the screen 170 to achieve screening. The rotating shaft 130 can be provided with a first motor for driving the rotating shaft 130. The first motor can be arranged at the top of the rotating shaft 130, driving the rotating shaft 130 so that the rotating shaft 130 keeps the rotating shaft 130 in a rotating state, thereby driving the movement of the first rotating mechanism 121 and the grinding mechanism 111 to achieve the functions of grinding and screening.

[0045] The material receiving mechanism 140 is disposed below the terminal screening component 120 and is used to receive the target sample discharged from the bottom of the terminal screening component 120. Figure 2 As shown, the top of the material receiving mechanism 140 can be connected to the bottom of the terminal screening component 120 to receive the screened target sample discharged from the bottom of the terminal screening component 120 .

[0046] Through the automatic grinding and screening processing equipment 100 provided by the present disclosure, the grinding mechanism 111 in the grinding assembly 110 is driven to rotate at high speed to crush and grind the sample through the rotation of the rotating shaft 130, which can have a higher grinding efficiency, ensure that the particle size of the ore sample meets the subsequent detection requirements, improve the uniformity and applicability of the sample, and provide a reliable basis for subsequent analysis. The ground sample can fall through the discharge port at the bottom of the grinding assembly 110 and enter the terminal screening assembly 120. The first rotating mechanism 121 in the terminal screening assembly 120 can drive the sample to move along the radial side of the sieve 170 set with the rotation of the rotating shaft 130. Through the push of the first rotating mechanism 121, the sample with a smaller particle size can smoothly pass through the sieve 170 and be discharged, while the sample with a larger particle size is retained in the terminal screening assembly 120, thereby realizing the accurate screening of the sample particle size. The aperture of the sieve 170 can be adjusted according to actual needs to meet the processing requirements of different ore samples. The target sample after screening can be discharged to the material receiving mechanism 140 to ensure that the target sample finally collected meets the detection standard. This process greatly improves the accuracy and efficiency of material processing and avoids the mixing and contamination of the target sample. By setting the rotating shaft 130, the grinding mechanism 111 and the first rotating mechanism 121 are installed on the rotating shaft 130, so that the grinding mechanism 111 and the first rotating mechanism 121 can move synchronously, so that the grinding assembly 110 and the terminal screening assembly 120 can be efficiently connected and coordinated. The setting of the rotating shaft 130 enables the grinding mechanism 111 and the first rotating mechanism 121 to rotate synchronously, realizing an automated grinding and screening process. The rotating shaft 130 can be detachably connected to the grinding mechanism 111 and the first rotating mechanism 121, which is convenient for maintenance and replacement, and prolongs the service life of the equipment. The material receiving mechanism 140 is located below the terminal screening assembly 120 and is responsible for receiving the target sample after screening. The target sample that has been screened is received by the receiving mechanism 140, which can facilitate subsequent packaging or further processing, and the receiving mechanism 140 and the terminal screening assembly 120 can be connected to each other, and the connection is stable, which can ensure that the target sample will not leak or be wasted due to vibration or misalignment when discharged. The automatic grinding and screening processing equipment 100 provided by the present disclosure integrates the functions of grinding, screening, and receiving materials, effectively improves the efficiency of ore sample preparation, can realize automated and continuous operation, effectively reduces manual intervention, improves work efficiency, and reduces energy consumption.

[0047] In some embodiments, Figure 4 , Figure 5 As shown, the grinding assembly 110 may further include: a grinding inner cylinder 112 and a grinding outer cylinder 113 .

[0048] The grinding inner cylinder 112 has a feed inlet at the top. The bottom plate of the grinding inner cylinder 112 is used to receive samples and has a grinding shaft hole 1122 running through the center for rotation with the rotating shaft 130. The side wall of the grinding inner cylinder 112 is provided with a sieve hole 1121. The grinding mechanism 111 is provided in the grinding inner cylinder 112 for grinding samples. The feed inlet can be provided at the top of the grinding inner cylinder 112 so that the material first enters the grinding inner cylinder 112 through the feed inlet and falls onto the bottom plate of the grinding inner cylinder 112. The grinding mechanism 111 can also be provided in the grinding inner cylinder 112, such as Figure 5 As shown, the bottom plate of the grinding inner cylinder 112 can be provided with a grinding shaft hole 1122, which can be located at the center of the grinding inner cylinder 112 and is arranged through the bottom plate of the grinding inner cylinder 112. The grinding mechanism 111 can be arranged in the grinding inner cylinder 112, so that the grinding mechanism 111 located in the grinding inner cylinder 112 can be driven to rotate by the rotation of the rotating shaft 130, so as to achieve the grinding process of the sample and obtain a sample with a smaller particle size. The grinding shaft hole 1122 and the rotating shaft 130 can be rotationally matched, so that the rotating shaft 130 can rotate freely when it is installed in the grinding shaft hole 1122, so as to drive the grinding mechanism 111 to rotate and grind the sample. The cylinder wall of the grinding inner cylinder 112 can be provided with a sieve hole 1121, so that the sample that has been ground can pass through the sieve hole 1121, enter the gap between the grinding inner cylinder 112 and the grinding outer cylinder 113, and be discharged from the bottom of the grinding outer cylinder 113. The diameter of the sieve hole 1121 can be smaller than the size of the unground ore sample raw material, so that the unground or insufficiently ground samples cannot pass through the sieve hole 1121 and enter the subsequent process, and the grinding assembly 110 can fully grind the ore sample to improve the quality of the ore sample. At the same time, the sieve hole 1121 can be used to perform a primary screening of the material, and the samples with relatively small particle sizes can be screened for subsequent processing.

[0049] The grinding outer cylinder 113 is arranged outside the grinding inner cylinder 112 and coaxially with the grinding inner cylinder 112. The side wall of the grinding outer cylinder 113 is spaced apart from the side wall of the grinding inner cylinder 112. The ground sample passes through the sieve hole 1121 and is discharged from the bottom of the grinding outer cylinder 113. The grinding outer cylinder 113 can be coaxially arranged with the grinding inner cylinder 112, and the size of the grinding outer cylinder 113 is larger than that of the grinding inner cylinder 112, so that the grinding outer cylinder 113 is arranged outside the grinding inner cylinder 112 and surrounds the grinding inner cylinder 112. Figure 5As shown, the grinding outer cylinder 113 and the grinding inner cylinder 112 are spaced apart so that a gap for material discharge is formed on the peripheral side of the grinding outer cylinder 113 and the grinding inner cylinder 112. The material passes through the sieving holes 1121 opened on the peripheral side of the grinding inner cylinder 112, falls through the gap between the grinding outer cylinder 113 and the grinding inner cylinder 112, and enters the subsequent processing components. The grinding outer cylinder 113 is fixedly connected to the grinding inner cylinder 112, and the grinding inner cylinder 112 and the grinding outer cylinder 113 can be fixedly connected by integral molding or welding, so as to avoid relative movement between the grinding outer cylinder 113 and the grinding inner cylinder 112, thereby ensuring the stability and safety of the automatic grinding and screening processing equipment 100. In some embodiments, the height of the grinding outer cylinder 113 can be greater than the height of the grinding inner cylinder 112. Figure 4 , Figure 5 As shown, both the grinding inner cylinder 112 and the grinding outer cylinder 113 can be columnar, and the upper diameter of the grinding outer cylinder 113 can be larger than the grinding inner cylinder 112, so that the grinding outer cylinder 113 surrounds the outer peripheral side of the grinding inner cylinder 112. The lower part of the grinding outer cylinder 113 can be radially contracted inward, so that the diameter of the lower part of the grinding outer cylinder 113 is equal to the diameter of the grinding inner cylinder 112, and is smaller than the outer diameter of the terminal screening assembly 120 below the grinding assembly 110, so that the lower part of the grinding outer cylinder 113 is funnel-shaped. The sample passes through the screen 170 from the grinding inner cylinder 112 and falls through the gap between the grinding inner cylinder 112 and the grinding outer cylinder 113. By setting the funnel-shaped grinding outer cylinder 113, the sample can be moved along the inner wall of the grinding outer cylinder 113, and gradually move toward the central axis direction of the grinding outer cylinder 113 in the horizontal direction during the falling process, which can effectively prevent the sample from falling into the material receiving mechanism 140 and prevent the sample from leaking.

[0050] The automatic grinding and screening processing equipment 100 provided by the present disclosure receives the sample through the feed port of the grinding inner cylinder 112, so that the sample falls on the bottom plate of the grinding inner cylinder 112, and then the grinding mechanism 111 fully grinds the sample under the drive of the rotating shaft 130, breaks and grinds the large particle sample, and obtains a sample with a smaller particle size. The sample after grinding is screened through the sieve hole 1121 on the side wall of the grinding inner cylinder 112, which can effectively screen out the sample that has not been ground or is not ground sufficiently, ensure that the grinding effect of the sample reaches the required particle size, and avoid large particles from entering the subsequent screening link, so as to ensure the accuracy of the processing. Through the gap between the grinding outer cylinder 113 and the grinding inner cylinder 112, a discharge channel for the sample is formed, so that the sample falls into the gap between the grinding outer cylinder 113 and the grinding inner cylinder 112 through the sieve hole 1121 of the grinding inner cylinder 112, and is discharged from the bottom of the grinding outer cylinder 113, so that the grinding outer cylinder 113 can limit the falling range of the sample and avoid leakage of the sample. The grinding outer cylinder 113 with a funnel-shaped structure can further effectively guide the material into the correct discharge path to prevent the material from leaking to the area outside the material receiving mechanism 140 during the falling process. Through this embodiment, the grinding assembly 110 can achieve efficient and stable ore sample grinding, have a better grinding effect, and ensure that the sample has a higher processing accuracy. The automation degree and work efficiency of the ore sample preparation process are improved, and the stability is higher.

[0051] In some embodiments, the terminal screening assembly 120, such as Figure 4 , Figure 5 As shown, it may also include: an end inner cylinder 122, an end outer cylinder 123

[0052] The bottom plate of the terminal inner cylinder 122 is used to receive the ground sample and has a through-hole 1221 in the center for rotation with the rotating shaft 130. The side wall of the terminal inner cylinder 122 is provided with a screen 170. The first rotating mechanism 121 is provided in the terminal inner cylinder 122 to push the sample toward the screen 170. A through hole for the material to enter can be provided at the top of the terminal inner cylinder 122, so that the material can enter the terminal inner cylinder 122 through the through hole after falling from the grinding assembly 110 and fall onto the bottom plate of the terminal inner cylinder 122. Figure 4 As shown, the top of the terminal inner cylinder 122 may also be an open structure. The first rotating mechanism 121 may be disposed in the terminal inner cylinder 122, and the bottom plate of the terminal inner cylinder 122 may be provided with a terminal shaft hole 1221, which may be located at the center of the terminal inner cylinder 122 and penetrate the bottom plate of the terminal inner cylinder 122. The first rotating mechanism 121 may be disposed in the terminal inner cylinder 122, and the screen 170 may be disposed on the side wall of the terminal inner cylinder 122. The side wall of the terminal inner cylinder 122 may be provided with an area for installing the screen 170, such as Figure 5As shown, the annular screen 170 can also be used as the side wall of the terminal inner cylinder 122. The rotation of the rotating shaft 130 drives the first rotating mechanism 121 located at the terminal inner cylinder 122 to rotate, and the samples scattered on the bottom plate of the terminal inner cylinder 122 can be pushed out along the radial direction of the terminal inner cylinder 122 through the first rotating mechanism 121, so that the samples are pushed to the screen 170 located on the side wall of the terminal inner cylinder 122 by the first rotating mechanism 121, so that the samples pass through the screen 170, and the secondary screening of the samples is achieved to obtain samples with smaller particle sizes. The terminal shaft hole 1221 and the rotating shaft 130 can be rotationally matched, so that the rotating shaft 130 can rotate freely when installed in the terminal shaft hole 1221, so as to drive the first rotating mechanism 121 to rotate and push the samples. The mesh number of the screen 170 set on the side wall of the terminal inner cylinder 122 is greater than the mesh number of the sample screened by the sieve hole 1121, so that the particle size of the sample passing through the screen 170 is smaller. The target sample can pass through the screen 170 from the terminal inner cylinder 122, enter the gap between the terminal inner cylinder 122 and the terminal outer cylinder 123, and be discharged from the bottom of the terminal outer cylinder 123. The screen 170 on the side wall of the terminal inner cylinder 122 can be designed to be annular or specially provided with an installation area to accurately perform secondary screening of the sample. Through the action of the first rotating mechanism 121, the sample is pushed toward the screen 170 to ensure that the sample is completely screened by the screen 170, further improving the purity of the sample. The sample screened by the screen 170 falls from the terminal inner cylinder 122, enters the gap between the terminal inner cylinder 122 and the terminal outer cylinder 123, and is then discharged from the bottom of the terminal outer cylinder 123.

[0053] The terminal outer cylinder 123 is arranged outside the terminal inner cylinder 122 and coaxially with the terminal inner cylinder 122. The side wall of the terminal outer cylinder 123 is spaced apart from the side wall of the terminal inner cylinder 122. The sample screened by the sieve 170 is discharged from the bottom of the terminal outer cylinder 123. The terminal outer cylinder 123 can be coaxially arranged with the terminal inner cylinder 122, and the size of the terminal outer cylinder 123 is larger than that of the terminal inner cylinder 122, so that the terminal outer cylinder 123 is arranged outside the terminal inner cylinder 122 and surrounds the terminal inner cylinder 122. Figure 4As shown, the terminal inner cylinder 122 and the terminal outer cylinder 123 are both cylindrical, and the inner diameter of the terminal outer cylinder 123 is larger than the outer diameter of the terminal inner cylinder 122. The terminal outer cylinder 123 and the terminal inner cylinder 122 can be spaced apart so that a gap for material discharge is formed on the circumferential side of the terminal outer cylinder 123 and the terminal inner cylinder 122, and the material passes through the screen 170 provided on the side wall of the terminal inner cylinder 122, and can fall through the gap between the terminal outer cylinder 123 and the terminal inner cylinder 122 to enter the material receiving mechanism 140. The terminal outer cylinder 123 is fixedly connected to the terminal inner cylinder 122, and the terminal inner cylinder 122 and the terminal outer cylinder 123 can be fixedly connected by integral molding or welding, so as to avoid relative movement between the terminal outer cylinder 123 and the terminal inner cylinder 122, thereby ensuring the stability and safety of the automatic grinding and screening processing equipment 100. In some embodiments, as Figure 5 As shown, the height of the terminal outer cylinder 123 can be greater than the height of the terminal inner cylinder 122, so that the terminal outer cylinder 123 surrounds the outer circumference of the terminal inner cylinder 122, and the bottom of the terminal outer cylinder 123 can be connected to the top of the material receiving mechanism 140, so that after the material passes through the screen 170 from the terminal inner cylinder 122, it falls to the material receiving mechanism 140 through the gap between the terminal outer cylinder 123 and the terminal inner cylinder 122, and the terminal outer cylinder 123 can effectively prevent the material from falling outside the material receiving mechanism 140.

[0054] The automatic grinding and screening processing equipment 100 provided by the present disclosure receives the ground sample through the through hole at the top of the terminal inner cylinder 122, and makes it fall on the bottom plate of the terminal inner cylinder 122. The sample is pushed by the first rotating mechanism 121 so that it can move to the screen 170 located on the side wall of the terminal inner cylinder 122, and the sample is screened by the screen 170, so as to obtain a sample with a smaller particle size, and can effectively screen out samples with a larger particle size, so as to ensure that the particle size of the target sample meets the requirements of subsequent detection, and avoid large particles from entering the subsequent links, so as to ensure the accuracy of the processing. Through the gap between the terminal outer cylinder 123 and the terminal inner cylinder 122, the target sample falls into the gap between the terminal outer cylinder 123 and the terminal inner cylinder 122 through the screening hole 1121 of the terminal inner cylinder 122, and is discharged from the bottom of the terminal outer cylinder 123, so that the terminal outer cylinder 123 can limit the falling range of the target sample and avoid leakage of the target sample. Through this embodiment, the beating and screening assembly can achieve efficient and stable ore sample screening, ensuring that the target sample has a higher screening accuracy. The automation level and work efficiency of the ore sampling process are improved, and it has higher stability, ensuring the efficiency and accuracy of the entire ore sampling process.

[0055] In some embodiments, Figure 4 , Figure 5The automatic grinding and screening processing equipment 100 shown also includes: a middle screening component 160, which is located below the grinding component 110 and above the terminal screening component 120, and is used to receive the ground sample. After the grinding component 110 completes the grinding of the sample, the ground sample can be dropped from the grinding component 110 to the middle screening component 160, and the ground sample is screened once by the middle screening component 160, and the sample that has been screened once can be dropped from the middle screening component 160 to the terminal screening component 120, and then screened again by the terminal screening component 120, and finally the screened target sample can be dropped from the bottom of the terminal screening component 120 to the material receiving component. Among them, the middle screening component 160 includes: a middle inner cylinder 162 and a middle outer cylinder 163.

[0056] The bottom plate of the middle inner cylinder 162 is used to receive the ground sample and has a through-hole 1621 in the center for rotation with the rotating shaft 130. The side wall of the middle inner cylinder 162 is provided with a screen 170. The middle inner cylinder 162 is provided with a second rotating mechanism 161, which is installed on the rotating shaft 130 and is used to push the sample to move toward the screen 170. The top of the middle inner cylinder 162 can be provided with a through hole for the material to enter, so that the material can enter the middle inner cylinder 162 through the through hole after falling from the grinding assembly 110 and fall onto the bottom plate of the middle inner cylinder 162. Figure 4 As shown, the top of the middle inner cylinder 162 may also be an open structure. The second rotating mechanism 161 may be disposed in the middle inner cylinder 162, and the bottom plate of the middle inner cylinder 162 may be provided with a middle axial hole 1621, which may be located at the center of the middle inner cylinder 162 and penetrate the bottom plate of the middle inner cylinder 162. The structure of the middle inner cylinder 162 of the middle screening assembly 160 may be similar to the structure of the terminal inner cylinder 122. The second rotating mechanism 161 may be disposed in the middle inner cylinder 162, and a screen 170 may also be provided on the side wall of the middle inner cylinder 162. The side wall of the middle inner cylinder 162 may be provided with an area for installing the screen 170, such as Figure 5As shown, the annular screen 170 can also be used as the side wall of the middle inner cylinder 162. The rotation of the rotating shaft 130 drives the second rotating mechanism 161 located in the middle inner cylinder 162 to rotate, and the samples scattered on the bottom plate of the middle inner cylinder 162 can be pushed out along the radial direction of the middle inner cylinder 162 through the second rotating mechanism 161, so that the samples are pushed to the screen 170 located on the side wall of the middle inner cylinder 162 by the second rotating mechanism 161, so that the samples pass through the screen 170, and the samples are screened and processed to obtain samples with smaller particle sizes. The middle shaft hole 1621 and the rotating shaft 130 can be rotationally matched, so that the rotating shaft 130 can rotate freely when installed in the middle shaft hole 1621, so as to drive the second rotating mechanism 161 to rotate and push the samples. The mesh number of the screen 170 set on the side wall of the middle inner cylinder 162 can be greater than the mesh number of the sample screened by the sieve hole 1121, so that the particle size of the sample passing through the screen 170 is smaller. The sample can pass through the screen 170 from the middle inner cylinder 162 , enter the gap between the middle inner cylinder 162 and the middle outer cylinder 163 , and be discharged from the bottom of the middle outer cylinder 163 .

[0057] The middle outer cylinder 163 is arranged outside the middle inner cylinder 162 and coaxially with the middle inner cylinder 162. The side wall of the middle outer cylinder 163 is spaced apart from the side wall of the middle inner cylinder 162. The sample screened by the screen 170 is discharged from the bottom of the middle outer cylinder 163 to the terminal screening assembly 120. The middle outer cylinder 163 can be coaxially arranged with the middle inner cylinder 162, and the size of the middle outer cylinder 163 is larger than that of the middle inner cylinder 162, so that the middle outer cylinder 163 is arranged outside the middle inner cylinder 162 and surrounds the middle inner cylinder 162. Figure 4 As shown, the middle inner cylinder 162 and the middle outer cylinder 163 are both columnar, and the inner diameter of the middle outer cylinder 163 is larger than the outer diameter of the middle inner cylinder 162. The middle outer cylinder 163 and the middle inner cylinder 162 can be spaced apart so that a gap for sample discharge is formed on the circumferential side of the middle outer cylinder 163 and the middle inner cylinder 162. The sample passes through the screen 170 provided on the side wall of the middle inner cylinder 162, and can fall through the gap between the middle outer cylinder 163 and the middle inner cylinder 162 to enter the material receiving mechanism 140. The middle outer cylinder 163 is fixedly connected to the middle inner cylinder 162, and the middle inner cylinder 162 and the middle outer cylinder 163 can be fixedly connected by integral molding or welding, so as to avoid relative movement between the middle outer cylinder 163 and the middle inner cylinder 162, thereby ensuring the stability and safety of the automatic grinding and screening processing equipment 100. In some embodiments, as Figure 5As shown, the height of the middle outer cylinder 163 can be greater than the height of the middle inner cylinder 162, the middle inner cylinder 162 and the middle outer cylinder 163 can both be columnar, and the upper diameter of the middle outer cylinder 163 can be greater than the middle inner cylinder 162, so that the middle outer cylinder 163 surrounds the outer peripheral side of the middle inner cylinder 162. The lower part of the middle outer cylinder 163 can be radially contracted inward, so that the diameter of the lower part of the middle outer cylinder 163 is smaller than the diameter of the middle inner cylinder 162, and smaller than the outer diameter of the terminal screening assembly 120 below the middle screening assembly 160, so that the lower part of the middle outer cylinder 163 is funnel-shaped. The sample passes through the screen 170 from the middle inner cylinder 162 and falls through the gap between the middle inner cylinder 162 and the middle outer cylinder 163. By setting up the funnel-shaped middle outer cylinder 163, the sample can move along the inner wall of the middle outer cylinder 163 and gradually move toward the central axis of the middle outer cylinder 163 in the horizontal direction during the falling process, which can effectively prevent the sample from falling into the material collecting mechanism 140 and prevent sample leakage.

[0058] Through the middle screening component 160 provided in this embodiment, by adding the middle screening component 160 between the grinding component 110 and the terminal screening component 120, it is possible to achieve multiple screening of the sample, further improving the screening accuracy and efficiency. After the sample is ground, it is first screened by the middle screening component 160 to achieve coarse screening, and larger particles and impurities are trapped in the middle inner cylinder 162. The sample is pushed to the screen 170 by the second rotating mechanism 161, and the smaller particle sample is screened out by the screen 170. The middle screening component 160 can realize the multi-layer screening structure of the equipment, improve the accuracy and efficiency of sample screening, and thus obtain high-quality target samples.

[0059] In some embodiments, the mesh number of the screen 170 provided in the terminal screening component 120 is greater than the mesh number of the screen 170 provided in the middle screening component 160. For the screen 170, the larger the mesh number, the smaller the aperture of the screen 170. By screening the sample through the screen 170 with a larger mesh number, a sample with a smaller particle size can be obtained, and the sample quality is higher. The mesh number of the screen 170 provided in the terminal screening component 120 can be greater than the mesh number of the screen 170 provided in the middle screening component 160, so that the sample in the middle screening component 160 can be screened out with a relatively large particle size through the screen 170 with a smaller mesh number, and these samples can be discharged from the bottom of the middle screening component 160 to the terminal screening component 120. The mesh number of the screen 170 of the terminal screening component 120 is greater than the mesh number of the screen 170 of the middle screening component 160, so that the target sample with a smaller particle size can be screened, so that the target sample passes through the screen 170 of the terminal screening component 120 and falls to the material receiving mechanism 140. Specifically, the mesh number of the screen 170 of the middle screening component 160 can be greater than or equal to 60 meshes, and the aperture corresponding to the 60-mesh screen 170 is about 0.25 mm. Through the screen 170 of the middle screening component 160, samples with a particle size less than or equal to 0.25 mm can be screened out, and the samples enter the terminal screening component 120 for re-screening. The mesh number of the screen 170 of the middle screening component 160 can be less than 200 meshes, and the aperture corresponding to the 200 mesh screen 170 is about 0.074 mm, so that the particle size of the sample screened by the middle screening component 160 is moderate, and it can avoid that too many samples with large particle sizes are accumulated on the inner wall of the middle inner cylinder 162 of the middle screening component 160, resulting in the sample with a smaller particle size being blocked by the sample with a larger particle size and difficult to discharge. By setting the screen 170 with a mesh number less than 200 and greater than or equal to 60 meshes on the middle screening component 160, the sample discharged from the grinding component 110 after grinding can be roughly screened, thereby screening out the sample with a larger particle size, so that the sample with a moderate or smaller particle size can enter the subsequent screening link. The mesh number of the screen 170 of the terminal screening component 120 can be greater than or equal to 200 meshes, and the aperture corresponding to the 200 mesh screen 170 is about 0.074 mm. Through the screen 170 of the screening component, the target sample with a particle size less than or equal to 0.074 mm can be screened out, so that the particle size of the target sample can meet the needs of subsequent testing and other processing. Since the automatic grinding and screening processing equipment 100 first needs to grind the sample in the grinding component 110, wherein the side wall of the grinding inner cylinder 112 can be opened with a screening hole 1121, or a screen 170 can be installed, and the mesh number of the screen 170 is smaller than that of the middle screening component 160 and the screen 170 of the terminal screening component 120, so that the sample is screened three times during the grinding and screening process, and the mesh number of the screen 170 of each screening gradually increases, so that the sample is finely screened step by step, and multiple screening of the sample is achieved.Specifically, the mesh number of the screen 170 provided on the side wall of the grinding inner cylinder 112 can be greater than or equal to 9 meshes, wherein the aperture corresponding to the 9-mesh screen 170 is approximately 2 mm, and the screen 170 provided on the side wall of the grinding assembly 110 can screen out samples with a particle size less than or equal to 2 mm, and allow the samples to enter the middle screening assembly 160 for further screening. The mesh number of the screen 170 provided on the side wall of the grinding assembly 110 can be less than 60 meshes, and the aperture corresponding to the 60-mesh screen 170 is approximately 0.25 mm, so that the particle size of the sample screened is moderate, and it can prevent too many samples with large particle sizes from accumulating on the inner wall of the grinding inner cylinder 112 of the grinding assembly 110, resulting in the samples with smaller particle sizes being blocked by the samples with larger particle sizes and being difficult to discharge.

[0060] Through this embodiment, by setting screens 170 of different mesh sizes in the middle screening component 160 and the terminal screening component 120, and screening in a step-by-step manner, the sample can effectively achieve the grading effect of coarse screening, medium screening and fine screening during the screening process, thereby optimizing the fluidity and screening efficiency of the sample. By gradually increasing the mesh size of the screen 170, it is possible to effectively prevent large particles from getting stuck in the screen 170, causing the middle screening component 160 and the terminal screening component 120 to jam, and ensure that the screening process proceeds smoothly. At the same time, it is possible to reduce the workload of the terminal screening component 120, extend the service life of the equipment, make the screening efficiency higher, and make the particle size control of the target sample more precise.

[0061] In some embodiments, Figure 5As shown, the side wall of the grinding inner cylinder 112 may be provided with at least one grinding waste outlet 1123 for discharging the waste remaining in the grinding inner cylinder 112 from the bottom of the grinding outer cylinder 113; the side wall of the terminal inner cylinder 122 is provided with at least one terminal waste outlet 1222 for discharging the waste remaining in the terminal inner cylinder 122 from the bottom of the terminal outer cylinder 123; the receiving mechanism 140 is also used to receive the waste discharged from the bottom of the terminal screening assembly 120. The side wall of the grinding inner cylinder 112 may be provided with a grinding waste outlet 1123 along the radial direction of the grinding inner cylinder 112. When the automatic grinding and screening processing equipment 100 is in the ore sampling state, the grinding waste outlet 1123 may be in a closed state, so that the sample cannot be discharged from the grinding waste outlet 1123, and the unground or insufficiently ground sample is prevented from leaking from the grinding waste outlet 1123. After the automatic grinding and screening processing equipment 100 completes the ore sampling, waste can be discharged, and the grinding waste discharge port 1123 can be opened so that the waste located in the grinding inner cylinder 112 can be discharged from the grinding waste discharge port 1123, and enter the gap between the grinding inner cylinder 112 and the grinding outer cylinder 113 from the grinding waste discharge port 1123 and fall into the terminal inner cylinder 122. The side wall of the grinding inner cylinder 112 can be provided with a grinding waste discharge port 1123 to effectively prevent the leakage of unground or insufficiently ground samples. The side wall of the grinding inner cylinder 112 can also be provided with multiple grinding waste discharge ports 1123 to improve the waste discharge efficiency. The side wall of the terminal inner cylinder 122 may be provided with a terminal waste discharge port 1222 along the radial direction of the terminal inner cylinder 122. When the automatic grinding and screening processing equipment 100 is in the state of ore sampling, the terminal waste discharge port 1222 may be in a closed state, so that the sample cannot be discharged from the terminal waste discharge port 1222, and the sample with a large particle size that does not meet the requirements is prevented from leaking from the terminal waste discharge port 1222. After the automatic grinding and screening processing equipment 100 completes ore sampling, waste can be discharged, and the terminal waste discharge port 1222 may be opened, so that the waste located in the terminal inner cylinder 122 can be discharged from the terminal waste discharge port 1222, and enter the gap between the terminal inner cylinder 122 and the terminal outer cylinder 123 from the terminal waste discharge port 1222 and fall into the material receiving mechanism 140. During the waste discharge process, the waste discharged from the grinding waste outlet 1123 can fall from the bottom of the grinding outer cylinder 113 into the terminal inner cylinder 122, and then enter the gap between the terminal inner cylinder 122 and the terminal outer cylinder 123 through the terminal waste outlet 1222 and fall into the material receiving mechanism 140. The side wall of the terminal inner cylinder 122 can be provided with a terminal waste outlet 1222 to effectively prevent the leakage of unqualified samples that have not been screened. The side wall of the terminal inner cylinder 122 can also be provided with multiple terminal waste outlets 1222 to improve the waste discharge efficiency. The material receiving mechanism 140 can be used to receive qualified target samples that have been ground and screened when the automatic grinding and screening processing equipment 100 is in the ore sample preparation state, and during the waste discharge process, the material receiving mechanism 140 can also be used to receive waste discharged from the bottom of the terminal screening component 120.The receiving mechanism 140 can be provided with a component for receiving a qualified target sample and a component for receiving waste, so that the target sample reception and the waste reception are realized through different components, thereby avoiding the mixing of the target sample and the waste material resulting in an unqualified target sample, and improving the accuracy of ore sampling. In some embodiments, the automatic grinding and screening processing equipment 100 is provided with a middle screening component 160, which is arranged below the grinding component 110 and above the terminal screening component 120, and the side wall of the middle inner cylinder 162 can be provided with at least one middle waste discharge port 1622, which is used to discharge the waste remaining in the middle inner cylinder 162 from the bottom of the middle outer cylinder 163. The side wall of the middle inner cylinder 162 may be provided with a middle waste discharge port 1622 along the radial direction of the middle inner cylinder 162. When the automatic grinding and screening processing equipment 100 is in the state of ore sampling, the middle waste discharge port 1622 may be in a closed state, so that the sample cannot be discharged from the middle waste discharge port 1622, and the sample that has not been screened by the middle screening component 160 is prevented from leaking from the middle waste discharge port 1622. After the automatic grinding and screening processing equipment 100 completes ore sampling, waste can be discharged, and the middle inner cylinder 162 can receive waste falling from the bottom of the grinding component 110. In this state, the middle waste discharge port 1622 can be opened, so that the waste located in the middle inner cylinder 162 can be discharged from the middle waste discharge port 1622, and enter the gap between the middle inner cylinder 162 and the middle outer cylinder 163 from the middle waste discharge port 1622 and fall into the terminal inner cylinder 122. The side wall of the middle inner cylinder 162 may be provided with a middle waste outlet 1622 to effectively prevent the sample that has not been screened by the middle screening assembly 160 from leaking from the middle waste outlet 1622. The side wall of the middle inner cylinder 162 may also be provided with multiple middle waste outlets 1622 to improve waste discharge efficiency.

[0062] The grinding waste outlet 1123 provided by the present disclosure can solve the problem of waste discharge in the automatic grinding and screening processing equipment 100, and ensure the separation and discharge efficiency of the target sample and the waste. The grinding waste outlet 1123 of the grinding inner cylinder 112 remains closed during the grinding process to prevent the leakage of unground or insufficiently ground samples; after the grinding is completed, the waste outlet is opened to discharge the waste. The middle waste outlet 1622 of the middle inner cylinder 162 also remains closed during the screening process, and the middle waste outlet 1622 is opened in the waste discharge state, so that the waste can be discharged from the middle waste outlet 1622. The end waste outlet 1222 of the end inner cylinder 122 also remains closed during the screening process, and opens after the screening is completed, discharges the waste and enters the material receiving mechanism 140 through the gap. According to this embodiment, the automatic grinding and screening processing equipment 100 can realize the waste discharge function after the ore sample preparation is completed by using the grinding waste outlet 1123, and the process is an automated process, without the need for manual waste discharge and cleaning. During the operation of the equipment, the sample preparation and waste discharge functions can be automatically switched by opening and closing the grinding waste discharge port 1123, the middle waste discharge port 1622 and the terminal waste discharge port 1222, thereby saving space and improving the operation efficiency of the equipment. Through the material receiving mechanism 140, the target sample and the waste can be separated to avoid mixing of the waste and the target sample, thereby ensuring the quality of the target sample. Through the embodiments of the present disclosure, the efficient discharge of the waste and the accurate collection of the target sample can be ensured, thereby improving the stability of the equipment and the quality of the ore sample preparation. The efficiency and accuracy of the ore sample preparation are ensured.

[0063] In some embodiments, Figure 1 , Figure 2 As shown, the automatic grinding and screening processing equipment 100 may also include: a plurality of discharge valves 150, which are arranged on the grinding outer cylinder 113, cooperate with the grinding waste outlet 1123, and are used to close or open the grinding waste outlet 1123, and are also arranged on the terminal outer cylinder 123, cooperate with the terminal waste outlet 1222, and are used to close or open the terminal waste outlet 1222. The discharge valve 150 can be installed on the grinding outer cylinder 113, and the grinding outer cylinder 113 can be provided with a mounting hole for installing the discharge valve 150, and the mounting hole can be arranged corresponding to the grinding waste outlet 1123 opened on the peripheral side of the grinding inner cylinder 112, so that the discharge valve 150 can be installed on the grinding outer cylinder 113 and cooperate with the grinding waste outlet 1123. The discharge valve 150 can also be an electromagnetic valve or a pneumatic valve controlled by electricity. During the ore sample preparation process, the electromagnetic valve can be kept closed to close the grinding waste discharge hole and block the sample; in the waste discharge state, the electromagnetic valve can be powered on to open it, so that the grinding waste discharge port 1123 is opened, and the waste in the grinding assembly 110 can be discharged through the grinding waste discharge port 1123. Figure 5As shown, a connecting cylinder can be provided between the mounting hole provided on the grinding outer cylinder 113 and the grinding waste outlet 1123 provided on the grinding inner cylinder 112, and the connecting cylinder, the mounting hole and the grinding waste outlet 1123 are connected to each other by welding or integral molding, and a through hole for waste to fall is provided at the bottom of the connecting cylinder. The discharge valve 150 can cooperate with the grinding waste outlet 1123, so that the discharge valve 150 remains in a closed state during the ore sampling process, so that the grinding waste outlet is closed, the sample is blocked, and the sample cannot be discharged from the grinding waste outlet 1123. When the equipment completes ore sampling and enters the waste discharge state, the discharge valve 150 can be opened, so that the grinding waste outlet 1123 is opened, and the waste in the grinding assembly 110 can be discharged through the grinding waste outlet 1123. The number of discharge valves 150 can be determined according to the number of grinding waste outlets 1123 opened on the grinding inner cylinder 112. One grinding waste outlet 1123 can be provided, and one discharge valve 150 can be provided correspondingly, which can effectively prevent the leakage of unqualified samples that have not been ground or are insufficiently ground. Multiple grinding waste outlets 1123 can also be provided on the grinding inner cylinder 112, and multiple discharge valves 150 can be installed correspondingly to improve the waste discharge efficiency. The discharge valve 150 can also be installed on the terminal outer cylinder 123. The terminal outer cylinder 123 can be provided with a mounting hole for installing the discharge valve 150. The mounting hole can be provided correspondingly to the terminal waste outlet 1222 opened on the peripheral side of the terminal inner cylinder 122, so that the discharge valve 150 can be installed on the terminal outer cylinder 123 and cooperate with the terminal waste outlet 1222. Figure 5 As shown, a connecting tube can be provided between the mounting hole provided on the terminal outer tube 123 and the terminal waste outlet 1222 provided on the terminal inner tube 122, and the connecting tube, the mounting hole and the terminal waste outlet 1222 are connected to each other by welding or integral molding, and a through hole for waste to fall is provided at the bottom of the connecting tube. The discharge valve 150 can cooperate with the terminal waste outlet 1222, so that the discharge valve 150 remains closed during the ore sampling process, so that the terminal waste outlet 1222 is closed, the target sample is blocked, and the target sample cannot be discharged from the terminal waste outlet 1222. When the equipment completes the ore sampling and enters the terminal state, the discharge valve 150 can be opened, so that the terminal waste outlet 1222 is opened, and the waste in the terminal screening component 120 can be discharged through the terminal waste outlet 1222. The number of discharge valves 150 can be determined according to the number of terminal waste discharge ports 1222 opened on the terminal inner cylinder 122. One terminal waste discharge port 1222 can be provided, and one discharge valve 150 can be provided correspondingly, which can effectively prevent the leakage of unqualified samples that have not been screened from affecting the quality of the target sample. Multiple terminal waste discharge ports 1222 can also be provided on the terminal inner cylinder 122, and multiple discharge valves 150 can be installed correspondingly to improve the efficiency of waste discharge.

[0064] Through the discharge valve 150 provided in the embodiment of the present disclosure, the opening and closing of the grinding waste outlet 1123 and the terminal waste outlet 1222 can be controlled by opening and closing the discharge valve 150, thereby realizing automatic control of waste discharge and ensuring efficient operation of the equipment. By closing the discharge valve 150 during the sample preparation process, waste leakage can be effectively avoided, and the quality and accuracy of the target sample can be effectively improved. By opening the discharge valve 150 during the waste discharge process, the waste can be discharged smoothly, which can reduce manual intervention and avoid delays in the waste discharge process caused by manual waste handling. It has a high level of automation and work efficiency, and can effectively improve the efficiency of waste discharge and the efficiency of the overall operation of the equipment.

[0065] In some embodiments, Figure 6 , Figure 7 As shown, the discharge valve 150 may include: a discharge housing 151 , a piston 152 , a spring 153 , and a ball 154 .

[0066] The discharge housing 151 includes a hollow spring mounting portion 1511 and a hollow ball track 1512. One end of the spring mounting portion 1511 is connected to the grinding outer cylinder 113 or the terminal outer cylinder 123, and the other end is connected to the grinding waste outlet 1123 or the terminal waste outlet 1222. A discharge port 1513 is provided below the spring mounting portion 1511 for discharging waste. Figure 7As shown, the discharge housing 151 may be a hollow structure, provided with a hollow spring mounting portion 1511, the interior of which is used to mount a spring 153 and a piston 152, so that the piston 152 can move freely in the spring mounting portion 1511 along the extension direction of the spring mounting portion 1511, and the spring 153 can be compressed or stretched in the spring mounting portion 1511. A discharge port 1513 for discharging waste may be provided below the spring mounting portion 1511. One end of the spring mounting portion 1511 may be connected to the grinding outer cylinder 113, so that the spring mounting portion 1511 and the grinding outer cylinder 113 are fixed to each other, ensuring the installation stability of the spring mounting portion 1511. The other end of the spring mounting portion 1511 may be connected to the grinding waste outlet 1123, so that the piston 152 mounted on the spring mounting portion 1511 can block or open the grinding waste outlet 1123, thereby realizing the opening and closing of the grinding waste outlet 1123, thereby controlling the discharge of waste from the discharge port 1513. One end of the spring mounting portion 1511 can also be connected to the terminal outer cylinder 123, so that the spring mounting portion 1511 and the terminal outer cylinder 123 are fixed to each other, ensuring the installation stability of the spring mounting portion 1511. The other end of the spring mounting portion 1511 can be connected to the terminal waste discharge port 1222, so that the piston 152 installed on the spring mounting portion 1511 can block or open the terminal waste discharge port 1222, thereby realizing the opening and closing of the terminal waste discharge port 1222, thereby controlling the discharge of waste from the discharge port 1513. In addition, one end of the spring mounting portion 1511 can also be connected to the middle outer cylinder 163, so that the spring mounting portion 1511 and the middle outer cylinder 163 are fixed to each other, ensuring the installation stability of the spring mounting portion 1511. The other end of the spring mounting portion 1511 can be connected to the middle waste discharge port 1622, so that the piston 152 mounted on the spring mounting portion 1511 can block or open the middle waste discharge port 1622, thereby realizing the opening and closing of the middle waste discharge port 1622, thereby controlling the discharge of waste from the discharge port 1513. The discharge housing 151 can also include a hollow ball track 1512 for accommodating the ball 154, so that the ball 154 can freely reciprocate in the ball track 1512.

[0067] The piston 152 is disposed at one end of the spring mounting portion 1511 close to the discharge port 1513, and is used to close or open the discharge port 1513, so that the waste material falls from the discharge port 1513. The piston 152 can be disposed at one end of the spring mounting portion 1511 close to the discharge port 1513, and the piston 152 can extend in the extension direction of the ball track 1512 to form a stopper on the side away from the discharge port 1513, and a first accommodating portion for accommodating the stopper can be formed in the spring mounting portion 1511 on the side close to the discharge port 1513, and a second accommodating portion for accommodating the stopper can be formed on the side away from the discharge port 1513. Taking the discharge valve 150 installed on the grinding assembly 110 as an example, when the stopper is located in the first accommodating portion, the piston 152 is located on the side close to the grinding inner cylinder 112, so that the piston 152 can block the grinding waste discharge port 1123 and close the discharge port 1513, effectively preventing waste from entering the discharge valve 150 and falling from the discharge port 1513, and preventing waste from leaking. When the stopper is located in the second accommodating portion, the piston 152 is located on the side away from the grinding inner cylinder 112, so that the piston 152 can open the discharge port 1513, so that the grinding waste discharge port 1123 is connected with the discharge port 1513, so that the waste can enter the discharge valve 150 from the grinding waste discharge port 1123 and fall from the discharge port 1513.

[0068] The spring 153 is provided in the spring mounting portion 1511, and one end near the discharge port 1513 is connected to the piston 152, and is used to move the piston 152 through the expansion and contraction of the spring 153. The spring 153 can be connected to the piston 152 and are jointly provided in the spring mounting portion 1511. The spring 153 can be connected to the piston 152 at one end near the discharge port 1513, and the piston 152 can be moved in the spring mounting portion 1511 through the expansion and contraction of the spring 153 to realize the opening and closing of the discharge port 1513. When the spring 153 is stretched, the stopper of the piston 152 can be located in the first accommodating portion, so that the piston 152 blocks the discharge port 1513, thereby closing the discharge port 1513 and preventing waste from leaking. When the spring 153 is compressed, the stopper of the piston 152 can be located in the second accommodating portion, so that the piston 152 avoids the discharge port 1513, thereby opening the discharge port 1513 and allowing the waste to be discharged from the discharge port 1513.

[0069] The ball 154 is arranged in the ball track 1512. When the ball 154 is located at a side far from the spring mounting portion 1511, the spring 153 can be compressed. When the ball 154 is located at a side close to the spring mounting portion 1511, the piston 152 is blocked. The ball 154 can be arranged in the ball track 1512 and can roll freely in the ball track 1512. When the ball 154 is located at a side close to the spring mounting portion 1511, the ball 154 abuts against the stopper of the piston 152, and the ball 154 can keep the piston 152 fixed, and the stopper is located in the first accommodation portion to prevent the spring 153 from contracting, thereby realizing the locking of the piston 152 and keeping the discharge port 1513 in a closed state. When the ball 154 is located at a side away from the spring mounting portion 1511 , the blocking effect of the ball 154 on the piston 152 is released, so that the piston 152 can move to avoid the discharge port 1513 , thereby opening the discharge port 1513 and allowing the waste to be discharged from the discharge port 1513 .

[0070] Specifically, in some embodiments, a second motor may be provided at the bottom of the automatic grinding and screening processing equipment 100 to drive the grinding inner cylinder 112, the grinding outer cylinder 113, the middle inner cylinder 162, the middle outer cylinder 163, the terminal inner cylinder 122 and the terminal outer cylinder 123 to rotate synchronously, so that the discharge valve 150 installed on the above structure rotates accordingly. When the equipment is in the state of ore sampling, the second motor can drive the above cylindrical structure to rotate clockwise, so that the ball 154 blocks the top piston 152, so that the stopper of the piston 152 is located in the first accommodating portion. In this state, the spring 153 is stretched, and because the ball 154 blocks the piston 152, the spring 153 cannot be retracted, so that the waste cannot fall through the discharge port 1513. The sample can flow out through the screen 170. When the equipment is in the state of discharging waste, the second motor can drive the above-mentioned cylindrical structure to rotate counterclockwise. In this process, when the second motor starts to accelerate, the ball 154 leaves the ball track 1512 close to the spring mounting portion 1511 and rolls to the side away from the spring mounting portion 1511. The piston 152 connected to the spring 153 is subjected to the centrifugal force and moves to the side away from the discharge port 1513, thereby pressing the spring 153. When the rotation speed reaches a certain speed, the spring 153 is compressed to the minimum distance, so that the block is located in the second accommodating portion, the discharge port 1513 is closed, and the waste can fall and be discharged from the discharge port 1513. When the second motor rotates for a certain time and reaches the preset time threshold, the discharge can be completed, the second motor stops rotating, the spring 153 is reset, the piston 152 returns to the original position, the discharge port 1513 is blocked by the piston 152 and closed, and the ball 154 returns to the side close to the spring mounting portion 1511 under the action of gravity.

[0071] Through the embodiments of the present disclosure, the unloading port 1513 can be automatically opened and closed by the coordinated design of the spring 153, the piston 152 and the ball 154, and the second motor drives the unloading valve 150 and other related structures to rotate, thereby achieving a high level of automation, reducing manual intervention, and saving labor costs. When the equipment is in a waste state such as ore sampling and waste discharge, the unloading valve 150 is driven by the second motor to rotate with the cylindrical structure, and the opening and closing of the unloading port 1513 is accurately controlled to avoid leakage of waste during the ore sampling process, thereby improving the reliability of the ore sampling process and the unloading process.

[0072] In some embodiments, Figure 8 As shown, the material receiving mechanism 140 may include: a sample tube 141 , a waste tube 142 and a rotating cylinder 143 .

[0073] The sample tube 141 is used to receive the screened target sample discharged from the bottom of the terminal screening component 120. The sample tube 141 can be arranged below the terminal screening component 120, and the top of the sample tube 141 can be fixedly connected to the bottom of the terminal screening component 120, so that the target sample can directly enter the sample tube 141 after being discharged from the bottom of the terminal screening component 120, and enter the subsequent processing equipment or collection equipment along the sample tube 141.

[0074] The waste pipe 142 is used to receive the waste discharged from the bottom of the terminal screening assembly 120. The waste pipe 142 can be arranged below the terminal screening assembly 120. The waste pipe 142 and the sample tube 141 are arranged in parallel, so that when the automatic grinding and screening processing equipment 100 is in the waste discharge state, the waste can enter the waste pipe 142 after being discharged from the bottom of the terminal screening assembly 120, and be discharged outside the equipment along the waste pipe 142.

[0075] The rotating cylinder 143 is used to drive the baffle 144 to rotate to block the sample tube 141 or the waste tube 142, so that the target sample falls into the sample tube 141, or the waste falls into the waste tube 142. The output shaft of the rotating cylinder 143 can extend into the sample tube 141 and the waste tube 142, and a baffle 144 can be provided on the output shaft. The baffle 144 can cooperate with the inner diameter of the sample tube 141 and the waste tube 142 to facilitate blocking the sample tube 141 or the waste tube 142. When the automatic grinding and screening processing equipment 100 is in the ore sample preparation state, the baffle 144 can be driven to rotate toward the side of the waste tube 142 by the rotation of the output shaft of the rotating cylinder 143, thereby blocking the waste tube 142, so that the target sample can be discharged from the bottom of the terminal screening component 120 to the sample tube 141. When the automatic grinding and screening processing device 100 is in the waste discharge state, the output shaft of the rotary cylinder 143 can be rotated to drive the baffle 144 to rotate toward the sample tube 141, thereby blocking the sample tube 141, so that the waste can be discharged from the bottom of the terminal screening component 120 to the waste pipe 142. Figure 8 As shown, the sample tube 141 and the waste tube 142 can also form a Y-shaped three-branch pipeline together, and the sample tube 141 and the waste tube are separated at one end away from the terminal screening component 120, and the baffle 144 can be set at the branch of the three-branch pipeline. When the automatic grinding and screening processing equipment 100 is in the ore sample preparation state, the baffle 144 can be driven by the rotating cylinder 143 to rotate the baffle 144 toward the waste tube 142, so that the baffle 144 blocks the waste tube 142, so that the target sample that has been ground and screened can fall into the sample tube 141 along the three-branch pipeline and enter the subsequent processing equipment. When the automatic grinding and screening processing equipment 100 is in the waste discharge state, the baffle 144 can be driven by the rotating cylinder 143 to rotate the baffle 144 toward the side of the sample tube 141, so that the baffle 144 blocks the sample tube 141, so that the waste in the automatic grinding and screening processing equipment 100 can fall into the waste pipe 142 along the three-branch pipeline and be discharged along the waste pipe 142.

[0076] According to the material receiving mechanism 140 provided in this embodiment, the rotating cylinder 143 drives the baffle 144 to rotate, which can effectively block the sample tube 141 or the waste tube 142, ensuring that the target sample and the waste can be accurately separated, avoiding the quality of the sample being affected by mixing, thereby improving the accuracy and purity of the sample preparation process. In addition, the automatic operation of the rotating cylinder 143 can reduce manual intervention, effectively improving the automation level and work efficiency of the equipment.

[0077] In some embodiments, the automatic grinding and screening processing equipment 100 may further include a brush, which is respectively arranged at the end of the first rotating mechanism 121 and the end of the second rotating mechanism 161, and is used to clean the inner wall of the terminal screening component 120 and the middle screening component 160. A first brush may be arranged at the end of the first rotating mechanism 121, and the first brush and the first rotating mechanism 121 may be fixed to each other, so that the first rotating mechanism 121 drives the first brush at its end to rotate synchronously during the rotation process, and the first brush and the first rotating mechanism 121 have no relative movement. The end of the first brush may contact the side wall of the terminal inner cylinder 122. Since the side wall of the terminal inner cylinder 122 is provided with a screen 170, which has a large mesh number, the aperture of the screen 170 is small, which may cause part of the sample to be stuck in the hole of the screen 170, resulting in sample blockage. By setting the first brush at the end of the first rotating mechanism 121, the bristles of the first brush can be swept through the screen 170 during the rotation process, so as to clean the sample stuck in the hole of the screen 170, clean the inner wall of the terminal screening component 120 and the screen 170 in real time, and keep the inner wall of the terminal screening component 120 and the screen 170 clean while screening the sample. Since the service life of the brush is limited, the first brush can be a quick-release component that can be quickly disassembled and replaced. The first brush and the first rotating mechanism 121 can also be integrated, and the first rotating mechanism 121 can be a quick-release component, so that the first rotating mechanism 121 can be quickly disassembled from the rotating shaft 130 or quickly installed on the rotating shaft 130, thereby improving the disassembly and assembly efficiency of the first rotating mechanism 121 and facilitating maintenance and replacement. The end of the second rotating mechanism 161 may be provided with a second brush, and the second brush and the second rotating mechanism 161 may be fixed to each other, so that the second rotating mechanism 161 drives the second brush at its end to rotate synchronously during the rotation process, and the second brush and the second rotating mechanism 161 have no relative movement. The end of the second brush may contact the side wall of the middle inner cylinder 162. Since the side wall of the middle inner cylinder 162 is provided with a screen 170, which has a large mesh number and a small aperture of the screen 170, part of the sample may be stuck in the hole of the screen 170, resulting in sample blockage. By setting the second brush at the end of the second rotating mechanism 161, the bristles of the second brush can be swept through the screen 170 during the rotation process, thereby cleaning the sample stuck in the hole of the screen 170, cleaning the inner wall of the middle screening component 160 and the screen 170 in real time, and continuously keeping the inner wall of the middle screening component 160 and the screen 170 clean while screening the sample. Since the service life of the brush is limited, the second brush can be a quick-release component that can be quickly disassembled and replaced. The second brush and the second rotating mechanism 161 can also be integrated, and the second rotating mechanism 161 can be a quick-release component, so that the second rotating mechanism 161 can be quickly disassembled from the rotating shaft 130 or quickly installed on the rotating shaft 130, thereby improving the disassembly and assembly efficiency of the second rotating mechanism 161 and facilitating maintenance and replacement.

[0078] By using the brush provided in this embodiment, the inner wall and the screen 170 of the terminal screening component 120 and the middle screening component 160 can be cleaned in real time while screening the sample, and the sample stuck in the hole of the screen 170 can be effectively cleaned to avoid the sample blocking the screen 170, so that the screening process is smoother and the continuous and efficient operation of the equipment is guaranteed. It is also possible to maintain the accuracy of screening, avoid the deviation of screening results caused by sample residue, and improve the accuracy and quality of sample preparation. In addition, by cleaning with a brush, the accumulation of samples in the screening component can be reduced, the wear or blockage of the screen 170 can be avoided, and the service life of the screen 170 can be extended.

[0079] In some embodiments, Fig. 9 As shown, the grinding mechanism 111 may include: a rotating component 1111 and a grinding sheet 1112 .

[0080] The rotating assembly 1111 is mounted on the rotating shaft 130, and the rotating assembly 1111 extends radially outward to form a mounting portion. A through hole may be provided at the center of the rotating assembly 1111 for the rotating shaft 130 to pass through, so that the rotating assembly 1111 and the rotating shaft 130 can rotate and cooperate, so that the rotating shaft 130 can drive the rotating assembly 1111 to achieve stable rotation. The upper part of the rotating assembly 1111 may extend radially outward to form a mounting portion, and the mounting portion may be used to install the grinding sheet 1112, so that in the process of the rotating shaft 130 driving the rotating assembly 1111 to rotate, the grinding sheet 1112 is driven to rotate through the connection between the mounting portion and the grinding sheet 1112 to grind the sample. The rotating assembly 1111 may extend outward to form a plurality of mounting portions, and each mounting portion may be correspondingly mounted with the grinding sheet 1112 to improve the grinding efficiency of the grinding mechanism 111. The rotating assembly 1111 provided with a plurality of mounting portions may be centrally symmetrically arranged to ensure the stability of the rotating assembly 1111 and the grinding sheet 1112 during rotation.

[0081] The grinding sheet 1112 is located on the circumferential side of the rotating assembly 1111 and is installed on the mounting portion of the rotating assembly 1111 for grinding the sample. The grinding sheet 1112 can be fixedly installed on the circumferential side of the rotating assembly 1111 and connected to the mounting portion of the rotating assembly 1111. The connection between the grinding sheet 1112 and the mounting portion can be detachable. Since the grinding sheet 1112 is a consumable and needs to be replaced frequently, the grinding sheet 1112 can be detachably connected to the mounting portion. The mounting method of the grinding sheet 1112 can be bolted or other detachable fixing methods. The grinding sheet 1112 is fastened to the mounting portion of the rotating assembly 1111 by bolts, which is convenient for disassembling and assembling the grinding sheet 1112, so as to improve the repair and maintenance efficiency of the grinding mechanism 111. When the rotating shaft 130 drives the rotating assembly 1111 to rotate, the grinding sheet 1112 moves with the rotating assembly 1111, contacts with the sample during the rotation process, and completes the grinding of the sample. Due to the symmetrical mounting design of the rotating assembly 1111, the distribution of the grinding sheets 1112 can be more uniform, which can ensure stability during grinding, reduce unnecessary vibrations and deviations, and improve grinding efficiency and sample uniformity.

[0082] Through this embodiment, through the rotating assembly 1111 and the grinding sheet 1112, the overall grinding efficiency of the grinding mechanism 111 can be effectively improved, the grinding time can be shortened, and the working efficiency of the equipment can be improved. By setting the mounting portion of the rotating assembly 1111 in a centrally symmetrical manner, the balance of the rotating assembly 1111 during high-speed rotation is ensured, and the vibration and noise caused by the eccentric setting are avoided, thereby improving the stability of the grinding process and ensuring a uniform grinding effect. Through the detachable connection between the grinding sheet 1112 and the mounting portion, the grinding sheet 1112 can be quickly disassembled and replaced, thereby improving the maintenance efficiency of the equipment, reducing the maintenance cost, and extending the service life of the equipment.

[0083] In some embodiments, Figure 2As shown, the automatic grinding and screening processing equipment 100 may also include: a suction mechanism 190 and a feeding mechanism 200. The suction mechanism 190 is used to suck samples from the outside. The feeding mechanism 200 is connected to the top of the grinding assembly 110, and is used to feed the sample sucked by the suction mechanism 190 into the grinding assembly 110. The suction mechanism 190 may be a vacuum suction mechanism 190, which can suck the ore particles outside the automatic grinding and screening processing equipment 100 into the automatic grinding and screening processing equipment 100 through the suction mechanism 190, so that the ore particles enter the feeding mechanism 200. The feeding mechanism 200 may be in the shape of a funnel, and the upper part is connected to the suction mechanism 190, and is used to receive the ore particles sucked by the suction mechanism 190 as samples to be processed. The bottom of the feeding mechanism 200 can be connected to the top of the grinding assembly 110, and the bottom of the feeding mechanism 200 can be connected to the feed port opened at the top of the grinding assembly 110, and the sample is fed into the grinding assembly 110 through the feed port through the feeding mechanism 200. The suction mechanism 190 can continuously suck the sample, and the feeding mechanism 200 can be provided with a valve. During the process of the suction mechanism 190 sucking the sample, the valve can be in a closed state, so that the sucked sample can be stored in the feeding mechanism 200. A volume or weight threshold can be pre-set for the feeding mechanism 200. When the volume or weight of the sample in the feeding mechanism 200 reaches the threshold, the suction mechanism 190 can stop sucking the sample, and the valve of the feeding mechanism 200 can be opened, so that the sample falls from the feeding mechanism 200 into the grinding assembly 110. Specifically, the weight threshold of the feeding mechanism 200 can be set to 20g, that is, 20g of sample is processed each time of grinding and screening.

[0084] According to this embodiment, the process of automatically sucking and conveying the sample from the outside to the grinding assembly 110 can be realized through the suction mechanism 190 and the feeding mechanism 200, eliminating the step of manual feeding, effectively improving the automation level of the equipment, reducing manual intervention, and improving work efficiency. The suction mechanism 190 can continuously suck the sample, and store the sample or convey the sample to the grinding assembly 110 through the feeding mechanism 200, so as to realize automatic continuous feeding, accurately control the amount of sample entering the grinding assembly 110, ensure that the sample entering the grinding assembly 110 is stable and uniform, and improve the processing quality and sample preparation accuracy of the sample.

[0085] In some embodiments, Fig.10 , Fig.11As shown, the automatic grinding and screening processing equipment 100 also includes: an equipment housing 210, which is covered on the outer peripheral side of the grinding component 110 and the terminal screening component 120. The equipment housing 210 can be covered on the outside of the grinding component 110 and the terminal screening component 120 to protect the various structural components inside. Since the automatic grinding and screening processing equipment 100 is used for ore sampling, in order to ensure the real-time performance of ore sampling and detection, the automatic grinding and screening processing equipment 100 can be installed on mining site working equipment such as drilling rigs, so that the ore samples can be processed while the mine is being drilled, and the ore quality excavated in the mine can be processed and detected immediately while drilling holes in the mine, which can effectively improve the work efficiency of the mining site. Therefore, the automatic grinding and screening processing equipment 100 can be in an open-pit mine, and its environment is relatively complex. There may be some external impurities blown into the automatic grinding and screening processing equipment 100 by wind, resulting in a large number of impurities in the target sample obtained by the sample preparation of the equipment. In order to ensure the efficiency and effect of sample processing, and to protect the various functional components inside the automatic grinding and screening processing equipment 100, and to ensure high safety in harsh environments, a device housing 210 can be provided on the outer peripheral side of the grinding component 110, the middle screening component 160 and the terminal screening component 120, so that the device housing 210 surrounds the outside of these functional components to play a protective role. By providing the device housing 210, dust, debris and other impurities in the external environment can be effectively blocked from entering the interior of the device, and impurities can be prevented from contaminating the samples in the grinding and screening process, and the purity and quality of the prepared target samples can be ensured, thereby ensuring the accuracy of subsequent detection or other processing of the target samples. At the same time, it can prevent the wear and corrosion of the internal structure of the device by hard particles, rainwater, wind and sand in the external environment, thereby extending the service life of the device, reducing the occurrence rate of failures, and improving the reliability of the device. In addition, the device housing 210 can also reduce the possibility of sample splashing or dust spreading to the external environment during grinding and screening, and improve the safety of equipment operation.

[0086] In some embodiments, the automatic grinding and screening processing device 100 may further include: a drying component 220, which is fixedly arranged inside the device housing 210, located on the outer peripheral side of the grinding component 110 and the outer peripheral side of the terminal screening component 120, and is used to dry the sample. Figure 1As shown, the drying component 220 can be a columnar infrared drying device, such as an infrared heating lamp. The drying component 220 can be fixed to the inner side of the device housing 210, and is arranged toward the grinding component 110, the middle screening component 160, and the end screening component 120, so that the sample can be dried during the grinding, screening, and falling process of the sample. It can effectively remove moisture from the sample and prevent the sample from adhering to, agglomerating, and other problems during the grinding or screening process due to excessive water content, thereby improving the efficiency and accuracy of grinding and screening. And the drying component 220 can be used to continuously dry the sample during the grinding, screening, and falling process, ensuring that the sample is evenly heated during the entire processing process, further improving the sample preparation quality, and having higher efficiency.

[0087] In some embodiments, Figure 1 As shown, the automatic grinding and screening processing equipment 100 may also include: a blower 230, which is installed in the equipment housing 210 and is used to spray gas into the equipment housing 210 to clean the grinding assembly 110 and the terminal screening assembly 120. The blower 230 can be set in the installation housing, and a through hole that matches the exhaust port of the blower 230 can be opened on the installation housing. The blower 230 can be operated after completing the ore sampling and waste discharge, and is used to clean the components set inside the equipment housing 210. During the operation of the blower 230, gas can be blown into the installation housing through the exhaust port, so as to clean the waste dust and water vapor in the automatic grinding and screening processing equipment 100, and the internal components of the automatic grinding and screening processing equipment 100 can be cleaned, which can improve the cleaning effect of the equipment, avoid the influence of waste dust residue on the subsequent operation of the equipment, and extend the service life of the equipment.

[0088] In some embodiments, the automatic grinding and screening processing equipment 100 may further include: a vibrator 240, which is disposed on the outer wall of the grinding assembly 110 and the outer wall of the terminal screening assembly 120, and is used to vibrate to clean the grinding assembly 110 and the terminal screening assembly 120. The vibrator 240 may be operated after the ore sampling and waste discharge are completed. Figure 1As shown, the vibrator 240 can be arranged on the outer wall of the grinding assembly 110, and through the vibration of the vibrator 240, the small particles of impurities in the grinding assembly 110 and the samples stuck in the sieve holes 1121 can fall with the vibration, thereby cleaning the grinding assembly 110. The vibrator 240 can also be arranged on the outer wall of the middle screening assembly 160, and through the vibration of the vibrator 240, the small particles of impurities in the middle screening assembly 160 and the samples stuck in the screen 170 can fall with the vibration, thereby cleaning the middle screening assembly 160. The vibrator 240 can also be arranged on the outer wall of the terminal screening assembly 120, and through the vibration of the vibrator 240, the small particles of impurities in the terminal screening assembly 120 and the samples stuck in the screen 170 can fall with the vibration, thereby cleaning the terminal screening assembly 120. The vibrator 240 provided in this embodiment can effectively clean the residues on the inner wall of the grinding assembly 110 and the screening assembly and the screen 170, especially the small particle samples and impurities stuck in the holes of the screen 170, thereby ensuring the cleanliness inside the equipment and avoiding the influence of sample residues on subsequent sample preparation. At the same time, the service life of the equipment can be extended.

[0089] Based on the same inventive concept, Fig.12 As shown, the present disclosure further provides a sample analysis device 300, which may include: an automatic grinding and screening processing device 100, a packaging device 310, and a detection device 320 as in any of the aforementioned embodiments.

[0090] As in any of the above-mentioned embodiments of the automatic grinding and screening processing equipment 100, the sample can be ground by the grinding component 110 to obtain a sample with a smaller particle size, and then the ground sample can be screened by the middle screening component 160 and the end screening component 120. At the same time, the sample can be dried by the drying component 220 to reduce the impurities and water residue in the sample, so as to obtain the target sample that meets the subsequent detection requirements. The sample tube 141 of the material receiving mechanism 140 can be connected to the packaging device 310, and the target sample can fall through the sample tube 141 and be transported to the packaging device 310 for subsequent processing. During the waste discharge process, the waste can fall through the waste pipe 142 and be discharged to the outside of the automatic grinding and screening processing equipment 100 for waste treatment.

[0091] The packaging device 310 is connected to the material receiving mechanism 140 and is used to receive and package the samples discharged by the material receiving mechanism 140. The packaging device 310 can be connected to the sample tube 141 of the material receiving mechanism 140 to receive the target samples processed by the automatic grinding and screening processing device 100. For the convenience of detection, the target samples processed each time can be bagged by the packaging device 310 to distinguish the samples processed by different batches, so as to facilitate the subsequent detection and data archiving by the detection device 320. The samples of each batch can be bagged and coded by the packaging device 310 to clearly distinguish the groups of samples.

[0092] The testing device 320 is used to test the packaged samples. The testing device 320 can receive one or more groups of samples that have been bagged by the packaging device 310, and test each group of samples to obtain the sample test results, thereby determining the quality of the samples, so as to evaluate and guide the mining work based on the sample test results.

[0093] The sample analysis device 300 provided by the embodiment of the present disclosure has good real-time performance, and can realize the full process automation operation from sample grinding, screening, drying, packaging to testing, greatly reducing manual intervention, and improving the efficiency and accuracy of sample processing and analysis. The automatic grinding and screening processing equipment 100 can efficiently complete the sample preparation, so that the sample particle size, purity and dryness meet the needs of subsequent testing; the packaging equipment 310 can bag and label the samples in batches, effectively avoid sample confusion, and ensure sample traceability and data accuracy; the testing equipment 320 can quickly receive and analyze each batch of samples, realize real-time output of sample analysis results, and provide timely and accurate basis for quality control of mining or production processes.

[0094] Based on the same inventive concept, Fig.13 As shown, the present disclosure further provides a sample preparation method, which is applied to the automatic grinding and screening processing equipment of any of the aforementioned embodiments, wherein the sample preparation method may include: steps S410 to S430.

[0095] Step S410, receiving the sample through the grinding component 110, grinding the sample, and discharging the ground sample. The grinding component 110 can receive the ore sample entering from the outside. The sample can be sucked in from the outside through the suction mechanism 190, and the sample can be quantitatively fed into the grinding component 110 through the feeding mechanism 200. The sample can be ground by rotating the grinding mechanism 111 of the grinding component 110 to obtain a sample with a smaller particle size. While the grinding component 110 is grinding the sample, the drying component 220 can continuously dry the sample inside the various structures including the grinding component 110 in the automatic grinding and screening processing equipment. After the grinding component 110 completes the grinding of the sample, the ground sample can be discharged to the component for subsequent processing.

[0096] Step S420, receiving the ground sample through the end screening component 120, screening the sample, and discharging the target sample. The end screening component 120 can receive the sample ground by the grinding component 110, and push the sample through the first rotating mechanism 121 of the end screening component 120 so that the sample passes through the screen 170, thereby completing the screening of the product, and discharging the target sample from the bottom of the end screening component 120. In some embodiments, before step S420, the ground sample can be received by the middle screening component 160, and the second rotating mechanism of the middle screening component 160 rotates to push the sample to the screen 170 for screening, and the screened sample is discharged into the end screening component 120. In step S420, the end screening component 120 can receive the sample screened by the middle screening component 160, screen the sample again, and finally discharge the screened sample out of the end screening component 120.

[0097] Step S430, receiving the target sample through the material receiving mechanism 140. The target sample screened by the terminal screening component 120 can be received by the material receiving mechanism 140, so that the target sample enters the sample tube 141 of the material receiving mechanism 140. In some embodiments, after step S430, the waste in the grinding component 110, the middle screening component 160 and the terminal screening component 120 can be discharged into the waste pipe 142 through the discharge valve 150, so as to discharge the waste. After the waste is discharged, the blower 230 can be used to blow air to the various structural devices inside the automatic grinding and screening processing equipment, so as to clean and purge the impurities such as waste dust and water vapor inside the automatic grinding and screening processing equipment. After the waste is discharged, the vibrator 240 can also drive the grinding component 110, the middle screening component 160 and the terminal screening component 120 to vibrate, so as to discharge the impurities and waste stuck inside.

[0098] The sample preparation method provided in this embodiment can achieve efficient and automated processing of ore samples from grinding to screening, collection and waste discharge, effectively improve sample preparation efficiency and sample quality, reduce manual intervention and sample contamination risks, while ensuring the cleanliness of the equipment interior, extending the service life of the equipment, and improving the reliability and accuracy of the sample preparation process.

[0099] The present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or multiple times in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0100] In the context of this application, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements.

[0101] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more application embodiments, in the above description of the embodiments of this application, multiple features are sometimes merged into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0102] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the embodiments of the present application.

Claims

1. An automatic grinding and screening processing equipment for ore sample preparation, comprising: A grinding assembly, used for receiving a sample, wherein the grinding mechanism of the grinding assembly is used for grinding the sample, and the ground sample is discharged from the bottom of the grinding assembly; A terminal screening assembly is located below the grinding assembly and is used to receive the ground sample. The first rotating mechanism of the terminal screening assembly is used to push to screen the sample. The screened sample is discharged from the bottom of the terminal screening assembly. A rotating shaft is provided through the grinding assembly and the terminal screening assembly, and is fixedly connected to the grinding mechanism and the first rotating mechanism respectively, so as to drive the grinding mechanism and the first rotating mechanism to rotate by rotating; The material receiving mechanism is arranged below the terminal screening component and is used for receiving the target sample discharged from the bottom of the terminal screening component.

2. The automatic grinding and screening processing equipment according to claim 1, wherein: The grinding assembly further comprises: The grinding inner cylinder has a material inlet on the top, the bottom plate of the grinding inner cylinder is used to receive the sample and the center is provided with a through grinding shaft hole for rotating with the rotating shaft, and the side wall of the grinding inner cylinder is provided with a sieve hole; the grinding mechanism is arranged in the grinding inner cylinder for grinding the sample; The grinding outer cylinder is arranged outside the grinding inner cylinder and coaxially with the grinding inner cylinder. The side wall of the grinding outer cylinder is spaced apart from the side wall of the grinding inner cylinder. The ground sample passes through the sieve hole and is discharged from the bottom of the grinding outer cylinder.

3. The automatic grinding and screening processing equipment according to claim 2, wherein: The terminal screening assembly further comprises: The bottom plate of the terminal inner cylinder is used to receive the ground sample and is provided with a through terminal shaft hole in the center for rotationally cooperating with the rotating shaft. The side wall of the terminal inner cylinder is provided with a screen. The first rotating mechanism is provided in the terminal inner cylinder for pushing the sample to move toward the screen. The terminal outer cylinder is arranged outside the terminal inner cylinder and coaxially with the terminal inner cylinder. The side wall of the terminal outer cylinder is spaced apart from the side wall of the terminal inner cylinder. The sample screened by the sieve is discharged from the bottom of the terminal outer cylinder.

4. The automatic grinding and screening processing equipment according to claim 3, wherein: The side wall of the grinding inner cylinder is provided with at least one grinding waste discharge port for discharging the waste remaining in the grinding inner cylinder from the bottom of the grinding outer cylinder; The side wall of the terminal inner cylinder is provided with at least one terminal waste discharge port for discharging the waste remaining in the terminal inner cylinder from the bottom of the terminal outer cylinder; The material receiving mechanism is also used to receive waste materials discharged from the bottom of the terminal screening assembly.

5. The automatic grinding and screening processing equipment according to claim 4, wherein: The automatic grinding and screening processing equipment also includes: A plurality of discharge valves are arranged on the grinding outer cylinder, cooperate with the grinding waste outlet, and are used to close or open the grinding waste outlet. The plurality of discharge valves are also arranged on the terminal outer cylinder, cooperate with the terminal waste outlet, and are used to close or open the terminal waste outlet.

6. The automatic grinding and screening processing equipment according to claim 5, wherein: The discharge valve comprises: A discharge shell, comprising a hollow spring mounting part and a hollow ball track, wherein one end of the spring mounting part is connected to the grinding outer cylinder or the terminal outer cylinder, and the other end is connected to the grinding waste discharge port or the terminal waste discharge port, and a discharge port is provided below the spring mounting part for discharging the waste; A piston is provided at one end of the spring mounting portion close to the discharge port, and is used to close or open the discharge port so that the waste material falls from the discharge port; A spring, arranged at the spring mounting portion, with one end close to the discharge port connected to the piston, and used to move the piston through the expansion and contraction of the spring; The ball is arranged in the ball track. When the ball is located away from the spring mounting portion, the spring can be compressed. When the ball is located close to the spring mounting portion, the piston is locked.

7. The automatic grinding and screening processing equipment according to claim 4, wherein: The material receiving mechanism comprises: A sample tube, used for receiving the target sample after screening discharged from the bottom of the terminal screening component; A waste pipe for receiving the waste discharged from the bottom of the terminal screening assembly; The rotating cylinder is used to drive the baffle to rotate to block the sample tube or the waste tube, so that the target sample falls into the sample tube, or the waste falls into the waste tube.

8. The automatic grinding and screening processing equipment according to any one of claims 1 to 7, wherein: The automatic grinding and screening processing equipment further comprises: a middle screening assembly, located below the grinding assembly and above the end screening assembly, for receiving the ground sample; The middle screening assembly comprises: a middle inner cylinder, the bottom plate of which is used to receive the ground sample and the center of which is provided with a middle shaft hole for rotationally cooperating with the rotating shaft, and the side wall of the middle inner cylinder is provided with a screen; a second rotating mechanism is provided in the middle inner cylinder and is installed on the rotating shaft for pushing the sample to move toward the screen; The middle outer cylinder is arranged outside the middle inner cylinder and coaxially with the middle inner cylinder. The side wall of the middle outer cylinder is spaced apart from the side wall of the middle inner cylinder. The sample screened by the sieve is discharged from the bottom of the middle outer cylinder to the terminal screening component.

9. The automatic grinding and screening processing equipment according to claim 8, wherein: The mesh size of the screen provided in the terminal screening component is greater than the mesh size of the screen provided in the middle screening component.

10. The automatic grinding and screening processing equipment according to claim 8, wherein: The automatic grinding and screening processing equipment also includes brushes, which are respectively arranged at the ends of the first rotating mechanism and the second rotating mechanism, and are used to clean the inner walls of the end screening component and the middle screening component.

11. The automatic grinding and screening processing equipment according to claim 1, wherein: The grinding mechanism comprises: A rotating assembly is mounted on the rotating shaft, and the rotating assembly extends radially outward to form a mounting portion; The grinding sheet is located at the peripheral side of the rotating component and is installed on the mounting portion of the rotating component for grinding the sample.

12. The automatic grinding and screening processing equipment according to claim 1, wherein: The automatic grinding and screening processing equipment also includes: A suction mechanism, used for sucking the sample from the outside; The feeding mechanism is connected to the top of the grinding assembly and is used for feeding the sample sucked by the suction mechanism into the grinding assembly.

13. The automatic grinding and screening processing equipment according to claim 1, wherein: The automatic grinding and screening processing equipment further comprises: an equipment housing, which is arranged on the outer peripheral side of the grinding component and the terminal screening component.

14. The automatic grinding and screening processing equipment according to claim 13, wherein: The automatic grinding and screening processing equipment also includes: a drying component, which is fixedly arranged on the inner side of the equipment housing, located on the outer peripheral side of the grinding component and the outer peripheral side of the terminal screening component, and is used to dry the sample.

15. The automatic grinding and screening processing equipment according to claim 13, wherein: The automatic grinding and screening processing equipment also includes: a blower installed in the equipment housing and used for blowing gas into the equipment housing to clean the grinding component and the terminal screening component.

16. The automatic grinding and screening processing equipment according to claim 15, wherein: The automatic grinding and screening processing equipment further includes: a vibrator, which is arranged on the outer wall of the grinding component and the outer wall of the terminal screening component, and is used for vibrating to clean the grinding component and the terminal screening component.

17. A sample analysis device comprising: The automatic grinding and screening processing equipment according to any one of claims 1 to 16; A packaging device, connected to the material receiving mechanism, for receiving and packaging the sample discharged by the material receiving mechanism; The testing equipment is used to test the packaged samples.

18. A sample preparation method, applied to the automatic grinding and screening processing equipment according to any one of claims 1 to 16, wherein: The sample preparation method comprises: receiving the sample through a grinding assembly, grinding the sample, and discharging the ground sample; The end screening component receives the ground sample, screens the sample, and discharges the target sample; The target sample is received by the material receiving mechanism.

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