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

Abstract

The present disclosure relates to the field of mining engineering technology, and specifically to an automatic grinding and screening processing equipment, a sample analysis equipment and a sample preparation method. The automatic grinding and screening processing equipment is used for ore sampling, and includes: a grinding assembly for receiving samples, a grinding mechanism for grinding samples, and the samples are discharged from the bottom of the grinding assembly; a terminal screening assembly is located below the grinding assembly, a first rotating mechanism is used to push to screen the samples, and the samples are 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 respectively connected to the grinding mechanism and the first rotating mechanism to drive them to rotate; a material receiving mechanism is provided below the terminal screening assembly to receive the target sample. The automatic grinding and screening processing equipment can integrate the functions of grinding, screening and collection, has a high level of automation and integration, can effectively improve the efficiency of ore sampling, reduce the energy consumption of ore sampling and the space occupied by the equipment, can effectively reduce operating costs, and is easy 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] The testing process for ore samples requires certain requirements, such as particle size and dryness. Therefore, the samples must be processed through multiple steps, including sampling, grinding, and screening, to facilitate testing. Typically, ore samples are processed sequentially using automated processing equipment, such as crushers and grinders, to obtain ore samples that meet testing requirements. However, current automated ore sample processing equipment has limited functionality, requiring multiple devices with different functions to form an assembly line for ore sample preparation. This consumes a lot of energy, takes up a large amount of 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 for receiving samples, a grinding mechanism of the grinding component for grinding the samples, and the ground samples are discharged from the bottom of the grinding component; an end screening component located below the grinding component for receiving the ground samples, a first rotating mechanism of the end screening component for pushing to screen the samples, and the screened samples are discharged from the bottom of the end screening component; a rotating shaft is provided through the grinding component and the end 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 is provided below the end screening component for receiving the target sample discharged from the bottom of the end screening component.

[0004] In some embodiments, the grinding assembly further 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 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; a grinding outer cylinder is arranged on the outside of the grinding inner cylinder and is coaxial 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 further includes: a terminal inner cylinder, the bottom plate of the terminal inner cylinder is used to receive the ground sample and a terminal shaft hole is opened in the center for rotating 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, for pushing the sample to move toward the screen; the terminal outer cylinder is arranged on the outside of 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, 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 component.

[0007] In some embodiments, the automatic grinding and screening processing equipment also includes: multiple unloading 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 outlet or the terminal waste outlet, and a discharge port is opened below the spring mounting portion for discharging the waste; a piston is provided at one end of the spring mounting portion close to the discharge port, for closing or opening the discharge port, so that the waste falls from the discharge port; a spring is provided at the spring mounting portion, and one end close to the discharge port is connected to the piston, for moving the piston through the expansion and contraction of the spring; a ball is provided in the ball track, and when the ball is located on the side away from the spring mounting portion, the spring can be compressed, and when the ball is located on the side close to the spring mounting portion, the piston is locked.

[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 comprises: 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 the middle inner cylinder is used to receive the ground sample and has a central shaft hole extending through the center thereof for rotating with the rotating shaft, and a screen is provided on the side wall of the middle inner cylinder; a second rotating mechanism is provided in the middle inner cylinder and is mounted on the rotating shaft for pushing the sample 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 screen 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 further includes brushes, which are respectively arranged at the ends of the first rotating mechanism and the second rotating mechanism, for cleaning the inner walls 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, 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 in 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 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, for drying 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, disposed on the outer wall of the grinding component and the outer wall of the terminal screening component, for vibrating to clean the grinding component and the terminal screening component.

[0021] In a second aspect, the present disclosure also 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 a 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 disclosure.

[0024] The automatic grinding and screening processing equipment provided by the present disclosure grinds the sample by driving the grinding mechanism in the grinding assembly via a rotating shaft, and finely screens the ground sample via the terminal screening assembly, thereby obtaining an ore sample that meets the requirements of subsequent testing. The screened ore sample is finally collected by the material collecting mechanism. The automatic grinding and screening processing equipment provided by the present disclosure integrates 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 operating costs, 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 This is a schematic structural diagram of an automatic grinding and screening processing device 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 structural diagram 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 the structure of a discharge valve according to an exemplary embodiment of the disclosure;

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

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

[0034] Figure 9 is a schematic structural diagram of a grinding mechanism according to an exemplary embodiment of the disclosure;

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

[0036] Figure 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] Figure 12 is a schematic structural diagram of a sample analysis device according to another exemplary embodiment of the present disclosure;

[0038] Figure 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, this specification cannot 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 design, manufacturing or production changes based on the technical content disclosed in this disclosure are just conventional technical means and should not be understood as the content of this disclosure being insufficient.

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

[0041] In order 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 assembly 110 , an end screening assembly 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 can be provided with an inlet for receiving the sample. The ore sample to be processed can enter the grinding assembly 110 through the inlet. Figure 2As shown, the grinding assembly 110 can be provided with a grinding mechanism 111 for grinding the sample. The grinding mechanism 111 processes the ore sample, crushing large particles of the ore sample to obtain a smaller particle size sample through grinding, so that the particle size of the ore sample meets subsequent testing requirements, thereby improving the sample quality. A discharge port can be provided at the bottom of the grinding assembly 110, and the ground sample can fall from the bottom of the grinding assembly 110 through the discharge port to the subsequent processing assembly for subsequent screening.

[0043] The terminal screening assembly 120 is located below the grinding assembly 110 and is used to receive the ground sample. The first rotating mechanism 121 of the terminal screening assembly 120 is used to push and screen the sample. The screened sample is discharged from the bottom of the terminal screening assembly 120. The terminal screening assembly 120 can receive the sample falling from the bottom of the grinding assembly 110 and screen the sample. Figure 2 As shown, the terminal screening assembly 120 is located below the grinding assembly 110. A through hole can be provided at the top of the terminal screening assembly 120 for sample entry. The diameter of the through hole can be greater than or equal to the diameter of the discharge port at the bottom of the grinding assembly 110 to ensure that the terminal screening assembly 120 can receive all samples that fall from the bottom of the grinding assembly 110 and prevent sample leakage. The terminal screening assembly 120 can be equipped with a screen 170 for screening samples with smaller particle sizes. The mesh size of the screen 170 can be determined based on the testing 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 material receiving mechanism 140, while the sample with a larger particle size cannot pass through the screen 170. The terminal screening component 120 can realize the screening of samples with different particle sizes after grinding, and only discharge samples with a particle size that meets the requirements.

[0044] The rotating shaft 130 is provided 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 can each be provided with an axial hole for the rotation shaft 130 to pass through, so that the rotation shaft 130 can be set 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, allowing the first rotating mechanism 121 to rotate and push the sample in the terminal screening assembly 120, so that the sample passes through the screen 170 for screening. The rotating shaft 130 can be equipped with a first motor for driving the rotating shaft 130. The first motor can be installed at the top of the rotating shaft 130, driving the rotating shaft 130 to maintain 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 grinding and screening functions.

[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 target sample that has completed screening and is 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 rotation of the rotating shaft 130 drives the grinding mechanism 111 in the grinding assembly 110 to rotate at high speed to crush and grind the sample, which can achieve 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 rotates with the rotating shaft 130, which can push the sample to move radially toward the sieve 170 set on the circumferential side. Through the push of the first rotating mechanism 121, samples with smaller particle sizes can pass through the sieve 170 smoothly and be discharged, while samples with larger particle sizes are retained in the terminal screening assembly 120, thereby achieving 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 standards. 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 extends 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 screened target sample is received by the receiving mechanism 140, which facilitates subsequent packaging or further processing. The receiving mechanism 140 and the terminal screening assembly 120 can be interconnected and firmly connected, ensuring that the target sample will not leak or be wasted due to vibration or misalignment during discharge. The automatic grinding and screening processing equipment 100 provided by the present disclosure integrates the functions of grinding, screening, and collecting, effectively improving the efficiency of ore sample preparation, enabling automated and continuous operation, effectively reducing manual intervention, improving work efficiency, and reducing energy consumption.

[0047] In some embodiments, as 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 port at the top. The bottom plate of the grinding inner cylinder 112 is used to receive samples and a grinding shaft hole 1122 is provided in 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 port 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 port 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 rotation of the rotating shaft 130 can drive the grinding mechanism 111 located in the grinding inner cylinder 112 to rotate, thereby achieving grinding processing of the sample and obtaining 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 installed in the grinding shaft hole 1122, thereby driving 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 ground sample 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 sieve holes 1121 can be smaller than the size of the unground ore sample. This prevents unground or inadequately ground samples from passing through sieve holes 1121 and into subsequent processing steps. This ensures that grinding assembly 110 fully grinds the ore sample, improving its quality. Sieve holes 1121 also allow for a preliminary screening of the material, screening samples with relatively small particle sizes for subsequent processing.

[0049] The outer grinding cylinder 113 is arranged outside the inner grinding cylinder 112 and is coaxial with the inner grinding cylinder 112. The side wall of the outer grinding cylinder 113 is spaced apart from the side wall of the inner grinding cylinder 112. The ground sample passes through the sieve hole 1121 and is discharged from the bottom of the outer grinding cylinder 113. The outer grinding cylinder 113 can be coaxial with the inner grinding cylinder 112, and the size of the outer grinding cylinder 113 is larger than that of the inner grinding cylinder 112, so that the outer grinding cylinder 113 is arranged outside the inner grinding cylinder 112 and surrounds the inner grinding cylinder 112. Figure 5As shown, the grinding outer cylinder 113 and the grinding inner cylinder 112 are spaced apart so that a gap is formed on the peripheral side of the grinding outer cylinder 113 and the grinding inner cylinder 112 for material discharge. 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, thereby avoiding 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, such as Figure 4 、 Figure 5 As shown, both the inner grinding cylinder 112 and the outer grinding cylinder 113 can be cylindrical. The upper diameter of the outer grinding cylinder 113 can be larger than that of the inner grinding cylinder 112, so that the outer grinding cylinder 113 surrounds the outer circumference of the inner grinding cylinder 112. The lower portion of the outer grinding cylinder 113 can be radially contracted inward, so that the lower diameter of the outer grinding cylinder 113 is equal to the diameter of the inner grinding cylinder 112 and smaller than the outer diameter of the terminal screening assembly 120 below the grinding assembly 110, thereby giving the lower portion of the outer grinding cylinder 113 a funnel shape. The sample passes through the screen 170 from the inner grinding cylinder 112 and falls through the gap between the inner grinding cylinder 112 and the outer grinding cylinder 113. The funnel-shaped outer grinding cylinder 113 allows the sample to gradually move horizontally along the inner wall of the outer grinding cylinder 113 toward the central axis of the outer grinding cylinder 113 during its fall, effectively preventing the sample from falling into the material receiving mechanism 140 and preventing sample leakage.

[0050] The automatic grinding and screening processing equipment 100 provided by the present invention 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 passes through the grinding mechanism 111, driven by the rotating shaft 130, to fully grind the sample, crush and grind the large particle sample, and obtain a sample with a smaller particle size. The ground sample is screened through the sieve holes 1121 on the side wall of the grinding inner cylinder 112, which can effectively screen out the unground or insufficiently ground samples, ensure that the grinding effect of the sample reaches the required particle size, and avoid larger particles from entering the subsequent screening link, thereby ensuring 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 holes 1121 of the grinding inner cylinder 112, and is discharged from the bottom of the grinding outer cylinder 113, which can limit the falling range of the sample and avoid leakage of the sample. The funnel-shaped grinding outer cylinder 113 further effectively guides the material into the correct discharge path, preventing it from leaking outside the material receiving mechanism 140 during its fall. This embodiment enables the grinding assembly 110 to achieve efficient and stable ore sample grinding, achieving better grinding results and ensuring higher sample processing accuracy. This improves the automation and efficiency of the ore sample preparation process, while also providing greater stability.

[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 is provided with a through-hole 1221 in the center for rotating 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 for pushing the sample toward the screen 170. A through hole for 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 provided 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 in the center of the terminal inner cylinder 122 and pass through the bottom plate of the terminal inner cylinder 122. The first rotating mechanism 121 may be provided in the terminal inner cylinder 122, and the screen 170 may be provided 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, as shown in FIG. Figure 5As shown, an annular screen 170 can also serve as the sidewall of the terminal inner cylinder 122. The rotation of the rotating shaft 130 drives the first rotating mechanism 121 located within the terminal inner cylinder 122 to rotate. This first rotating mechanism 121 can push samples scattered across the bottom plate of the terminal inner cylinder 122 radially and circumferentially. The samples are then pushed by the first rotating mechanism 121 toward the screen 170 located on the sidewall of the terminal inner cylinder 122, where they pass through the screen 170, achieving secondary screening of the samples and obtaining samples with smaller particle sizes. The terminal shaft hole 1221 and the rotating shaft 130 can be rotationally coupled, allowing the rotating shaft 130 to rotate freely when mounted within the terminal shaft hole 1221, driving the first rotating mechanism 121 to rotate and push the samples. The screen 170 located on the sidewall of the terminal inner cylinder 122 has a mesh size greater than that of the samples screened by the sieve holes 1121, resulting in smaller sample particles passing through the screen 170. 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, ensuring that the sample is completely screened by the screen 170, further improving the purity of the sample. The sample after being 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. 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 peripheral side 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. 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 invention receives the ground sample through the through hole at the top of the terminal inner cylinder 122, causing it to fall onto 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, thereby obtaining a sample with a smaller particle size. It can effectively screen out samples with larger particle sizes, ensure that the particle size of the target sample meets the requirements of subsequent testing, and prevent larger particles from entering the subsequent links, thereby ensuring the accuracy of the processing. Through the gap between the terminal outer cylinder 123 and the terminal inner cylinder 122, the target sample passes through the sieve hole 1121 of the terminal inner cylinder 122 and falls into the gap between the terminal outer cylinder 123 and the terminal inner cylinder 122, and is discharged from the bottom of the terminal outer cylinder 123, which 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, as Figure 4 、 Figure 5The automatic grinding and screening processing equipment 100 shown also includes: a middle screening assembly 160, which is located below the grinding assembly 110 and above the terminal screening assembly 120, and is used to receive the ground sample. After the grinding assembly 110 completes the grinding of the sample, the ground sample can be dropped from the grinding assembly 110 to the middle screening assembly 160, and the ground sample can be screened once by the middle screening assembly 160. The sample that has completed the screening can be dropped from the middle screening assembly 160 to the terminal screening assembly 120, and then screened again by the terminal screening assembly 120. Finally, the screened target sample can be dropped from the bottom of the terminal screening assembly 120 to the material receiving assembly. Among them, the middle screening assembly 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 central shaft hole 1621 extending through the center for rotation with the rotating shaft 130. The side wall of the middle inner cylinder 162 is provided with a screen 170. A second rotating mechanism 161 is provided inside the middle inner cylinder 162 and is mounted on the rotating shaft 130 to push the sample toward the screen 170. A through hole for material to enter can be provided at the top of the middle inner cylinder 162, 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 provided in the middle inner cylinder 162, and the bottom plate of the middle inner cylinder 162 may be provided with a middle shaft hole 1621, which may be located at the center of the middle inner cylinder 162 and pass through the bottom plate of the middle inner cylinder 162. The structure of the middle screening assembly 160 The structure of the middle inner cylinder 162 may be similar to that of the end inner cylinder 122. The second rotating mechanism 161 may be provided 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, as shown in FIG. Figure 5As shown, an annular screen 170 can also serve as the sidewall of the central inner cylinder 162. The rotation of the rotating shaft 130 drives the second rotating mechanism 161 located within the central inner cylinder 162 to rotate. This second rotating mechanism 161 can push samples scattered across the bottom plate of the central inner cylinder 162 radially and circumferentially. The samples are then pushed by the second rotating mechanism 161 toward the screen 170 located on the sidewall of the central inner cylinder 162, where they pass through the screen 170, achieving sample screening and obtaining a smaller sample size. The central shaft hole 1621 and the rotating shaft 130 can be rotationally coupled, allowing the rotating shaft 130 to rotate freely when mounted within the central shaft hole 1621, driving the second rotating mechanism 161 to rotate and push the sample. The mesh size of the screen 170 located on the sidewall of the central inner cylinder 162 can be larger than the mesh size of the sample screened by the sieve holes 1121, thereby reducing the sample size that passes through the screen 170. 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 cylindrical, 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 collecting 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. Both the middle inner cylinder 162 and the middle outer cylinder 163 can be cylindrical. The upper diameter of the middle outer cylinder 163 can be greater than that of the middle inner cylinder 162, so that the middle outer cylinder 163 surrounds the outer circumference of the middle inner cylinder 162. The lower portion of the middle outer cylinder 163 can be radially contracted inward, so that the diameter of the lower portion 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 portion 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] By providing the middle screening component 160 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, trapping larger particles and impurities in the middle inner cylinder 162. The sample is then pushed to the screen 170 by the second rotating mechanism 161, and the smaller particle samples are screened out by the screen 170. The middle screening component 160 can realize a 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 assembly 120 is greater than the mesh number of the screen 170 provided in the middle screening assembly 160. For the screen 170, the larger the mesh number, the smaller the aperture of the screen 170. Screening the sample through the screen 170 with a larger mesh number can obtain a sample with a smaller particle size and higher sample quality. The mesh number of the screen 170 provided in the terminal screening assembly 120 can be greater than the mesh number of the screen 170 provided in the middle screening assembly 160, so that the sample in the middle screening assembly 160 can pass through the screen 170 with a smaller mesh number to filter out samples with relatively larger particle sizes. These samples can be discharged from the bottom of the middle screening assembly 160 into the terminal screening assembly 120. The mesh number of the screen 170 of the terminal screening assembly 120 is greater than the mesh number of the screen 170 of the middle screening assembly 160, thereby being able to screen target samples with smaller particle sizes, allowing the target samples to pass through the screen 170 of the terminal screening assembly 120 and fall to the material receiving mechanism 140. Specifically, the mesh number of the screen 170 of the middle screening assembly 160 can be greater than or equal to 60 mesh, and the aperture corresponding to the 60-mesh screen 170 is approximately 0.25 mm. Through the screen 170 of the middle screening assembly 160, samples with a particle size less than or equal to 0.25 mm can be screened out, and the samples can enter the terminal screening assembly 120 for further screening. The mesh number of the screen 170 of the middle screening component 160 can be less than 200 mesh, and the aperture corresponding to the 200 mesh screen 170 is approximately 0.074 mm, so that the particle size of the sample screened by the middle screening component 160 is moderate, which can prevent too many samples with large particle sizes from accumulating on the inner wall of the middle inner cylinder 162 of the middle screening component 160, resulting in the smaller particle size samples being blocked by the larger particle size samples and difficult to discharge. By providing the screen 170 with a mesh number less than 200 and greater than or equal to 60 on the middle screening component 160, the ground sample discharged by the grinding component 110 can be coarsely screened, thereby screening out samples with larger particle sizes and allowing samples with moderate or smaller particle sizes to enter the subsequent screening process. The mesh number of the screen 170 of the terminal screening component 120 can be greater than or equal to 200 mesh, and the aperture corresponding to the 200 mesh screen 170 is approximately 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 provided 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 undergoes three screenings 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 screenings of the sample are 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 mesh, wherein the pore size corresponding to the 9-mesh screen 170 is approximately 2 mm. 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 the samples are then passed into 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 mesh, wherein the pore size 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 excessive large-sized samples from accumulating on the inner wall of the grinding inner cylinder 112 of the grinding assembly 110, resulting in the smaller-sized samples being blocked by the larger-sized samples 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 end screening component 120, and screening in a step-by-step manner according to the mesh size, 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 end screening component 120 to jam, and ensure that the screening process proceeds smoothly. At the same time, it can reduce the workload of the end 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, as Figure 5As shown, the sidewall 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 sidewall of the terminal inner cylinder 122 may be 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; and the material receiving mechanism 140 is further used to receive the waste discharged from the bottom of the terminal screening assembly 120. The sidewall of the grinding inner cylinder 112 may be provided with grinding waste outlets 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 outlets 1123 may be closed, preventing the sample from being discharged from the grinding waste outlet 1123, thereby preventing the leakage of unground or insufficiently ground sample from the grinding waste outlet 1123. After the automatic grinding and screening processing equipment 100 completes ore sampling, waste can be discharged. The grinding waste discharge port 1123 can be opened to allow the waste located in the grinding inner cylinder 112 to be discharged through the grinding waste discharge port 1123. The waste enters the gap between the grinding inner cylinder 112 and the grinding outer cylinder 113 through the grinding waste discharge port 1123 and falls into the terminal inner cylinder 122. The side wall of the grinding inner cylinder 112 can be provided with a single grinding waste discharge port 1123 to effectively prevent the leakage of unground or inadequately ground samples. The side wall of the grinding inner cylinder 112 can also be provided with multiple grinding waste discharge ports 1123 to improve 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 ore sampling state, the terminal waste discharge port 1222 may be closed, so that the sample cannot be discharged from the terminal waste discharge port 1222, thereby preventing the sample with a large particle size that does not meet the requirements 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. 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 completed grinding and screening when the automatic grinding and screening processing equipment 100 is in the ore sampling state. In 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 qualified target samples and a component for receiving waste materials, respectively, so that the target sample reception and the waste material reception are realized by different components, thereby avoiding the mixing of the target sample and the waste material resulting in the target sample being unqualified, and improving the accuracy of ore sampling. In some embodiments, the automatic grinding and screening processing equipment 100 is provided with a middle screening assembly 160, which is provided below the grinding assembly 110 and above the terminal screening assembly 120. The side wall of the middle inner cylinder 162 can be provided with at least one middle waste discharge port 1622 for discharging the waste material remaining in the middle inner cylinder 162 from the bottom of the middle outer cylinder 163. A central waste outlet 1622 can be defined along the radial direction of the central inner cylinder 162 on the sidewall of the central inner cylinder 162. When the automatic grinding and screening processing apparatus 100 is in the ore sampling state, the central waste outlet 1622 can be closed, preventing sample from being discharged through the central waste outlet 1622 and preventing sample that has not been screened by the central screening assembly 160 from leaking through the central waste outlet 1622. After the automatic grinding and screening processing apparatus 100 completes ore sampling, waste can be discharged, and the central inner cylinder 162 can receive waste that falls from the bottom of the grinding assembly 110. In this state, the central waste outlet 1622 can be opened, allowing waste in the central inner cylinder 162 to be discharged through the central waste outlet 1622, entering the gap between the central inner cylinder 162 and the central outer cylinder 163, and falling 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 not 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, ensuring the efficient separation and discharge of target samples and 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 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. In the waste discharge state, the middle waste outlet 1622 is opened to allow waste to 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. After screening is completed, it is opened to discharge the waste and enter the material receiving mechanism 140 through the gap. According to this embodiment, the automatic grinding and screening processing equipment 100 can use the grinding waste outlet 1123 to achieve the waste discharge function after the ore sampling is completed. This process is an automated process, and no manual waste discharge and cleaning is required. During operation, the equipment can automatically switch between sample preparation and waste discharge by opening and closing the grinding waste outlet 1123, the middle waste outlet 1622, and the terminal waste outlet 1222, saving space and improving equipment operating efficiency. The material collection mechanism 140 can separate the target sample and waste material, preventing mixing of the waste and target sample, thereby ensuring the quality of the target sample. The disclosed embodiments ensure efficient waste discharge and accurate collection of target samples, improving equipment stability and the quality of ore sampling. This ensures efficient and accurate ore sampling.

[0063] In some embodiments, as Figure 1 、 Figure 2 As shown, the automatic grinding and screening processing equipment 100 may further include: a plurality of discharge valves 150, which are provided on the grinding outer cylinder 113 and cooperate with the grinding waste outlet 1123 to close or open the grinding waste outlet 1123, and are further provided on the terminal outer cylinder 123 and cooperate with the terminal waste outlet 1222 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 mounting the discharge valve 150. The mounting hole can be provided corresponding to the grinding waste outlet 1123 opened on the circumference 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 electrically controlled solenoid valve or air pressure valve. During the ore sample preparation process, the solenoid valve can be kept closed to close the grinding waste discharge hole and block the sample. In the waste discharge state, the solenoid valve can be powered on to open it, thereby opening the grinding waste discharge port 1123 and allowing the waste in the grinding assembly 110 to be discharged through the grinding waste discharge port 1123. Figure 5As shown, a connecting tube 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. The connecting tube, 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 material to fall through is provided at the bottom of the connecting tube. The discharge valve 150 can cooperate with the grinding waste outlet 1123 to keep the discharge valve 150 closed during the ore sampling process, thereby closing the grinding waste outlet and blocking the sample, preventing the sample from being discharged from the grinding waste outlet 1123. After the equipment completes ore sampling and enters the waste discharge state, the discharge valve 150 can be opened, thereby opening the grinding waste outlet 1123, and the waste material 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 efficiency of waste discharge. 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. 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 to keep the discharge valve 150 closed during the ore sampling process, so that the terminal waste outlet 1222 is closed, blocking the target sample and preventing the target sample from being discharged from the terminal waste outlet 1222. When the equipment completes ore sampling and enters the terminal state, the discharge valve 150 can be opened, thereby opening the terminal waste outlet 1222, and the waste in the terminal screening assembly 120 can be discharged through the terminal waste outlet 1222. The number of discharge valves 150 can be determined based on the number of terminal waste outlets 1222 provided on the terminal inner cylinder 122. For each terminal waste outlet 1222, a corresponding discharge valve 150 can be provided to effectively prevent leakage of unqualified samples that have not been screened and could affect the quality of the target sample. Alternatively, the terminal inner cylinder 122 can be provided with multiple terminal waste outlets 1222, with corresponding discharge valves 150 installed, to improve waste discharge efficiency.

[0064] By 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, as 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 can be hollow and include a hollow spring mounting portion 1511. The interior is used to mount a spring 153 and a piston 152. The piston 152 can freely move within the spring mounting portion 1511 along its extension, and the spring 153 can be compressed or stretched within the spring mounting portion 1511. A discharge port 1513 for discharging waste material can be provided below the spring mounting portion 1511. One end of the spring mounting portion 1511 can be connected to the grinding outer cylinder 113, thereby securing the spring mounting portion 1511 to the grinding outer cylinder 113 and ensuring the stability of the spring mounting portion 1511. The other end of the spring mounting portion 1511 can be connected to the grinding waste outlet 1123, allowing the piston 152 mounted on the spring mounting portion 1511 to block or open the grinding waste outlet 1123, thereby opening and closing the grinding waste outlet 1123 and controlling the discharge of waste material from the discharge port 1513. One end of the spring mounting portion 1511 can also be connected to the terminal outer cylinder 123, thereby fixing the spring mounting portion 1511 and the terminal outer cylinder 123 to each other and 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 opening and closing 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, thereby fixing the spring mounting portion 1511 and the middle outer cylinder 163 to each other and ensuring the installation stability of the spring mounting portion 1511. The other end of the spring mounting portion 1511 can be connected to the central waste discharge port 1622, so that the piston 152 mounted on the spring mounting portion 1511 can block or open the central waste discharge port 1622, thereby opening and closing the central 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, allowing the ball 154 to roll freely back and forth within the ball track 1512.

[0067] The piston 152 is disposed at one end of the spring mounting portion 1511 near the discharge port 1513 and is used to close or open the discharge port 1513, allowing waste to fall from the discharge port 1513. The piston 152 can be disposed at one end of the spring mounting portion 1511 near the discharge port 1513. The piston 152 can extend in the direction of the ball track 1512 on a side away from the discharge port 1513 to form a stopper. The spring mounting portion 1511 can have a first accommodating portion for accommodating the stopper formed on the side near the discharge port 1513, and a second accommodating portion for accommodating the stopper 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 in the first receiving portion, the piston 152 is located on the side close to the grinding inner cylinder 112, allowing the piston 152 to block the grinding waste discharge port 1123 and close the discharge port 1513, effectively preventing waste from entering the discharge valve 150 and falling through the discharge port 1513, thereby preventing waste leakage. When the stopper is in the second receiving portion, the piston 152 is located on the side away from the grinding inner cylinder 112, allowing the piston 152 to open the discharge port 1513, connecting the grinding waste discharge port 1123 with the discharge port 1513, allowing waste to enter the discharge valve 150 through the grinding waste discharge port 1123 and fall through the discharge port 1513.

[0068] Spring 153 is located in spring mounting portion 1511. One end near discharge port 1513 is connected to piston 152, and the expansion and contraction of spring 153 causes piston 152 to move. Spring 153 and piston 152 can be connected and located together in spring mounting portion 1511. The end of spring 153 near discharge port 1513 can be connected to piston 152, and the expansion and contraction of spring 153 can cause piston 152 to move within spring mounting portion 1511, thereby opening and closing discharge port 1513. When spring 153 is extended, the stopper of piston 152 can be located in the first receiving portion, causing piston 152 to block discharge port 1513, thereby closing discharge port 1513 and preventing waste from leaking. When spring 153 is compressed, the stopper of piston 152 can be located in the second receiving portion, causing piston 152 to clear discharge port 1513, thereby opening discharge port 1513 and allowing waste to be discharged through discharge port 1513.

[0069] Ball 154 is disposed within ball track 1512. When ball 154 is positioned away from spring mounting portion 1511, spring 153 is compressed. When ball 154 is positioned closer to spring mounting portion 1511, piston 152 is locked. Ball 154 is disposed within ball track 1512 and is capable of rolling freely within ball track 1512. When ball 154 is positioned closer to spring mounting portion 1511, ball 154 abuts against a stopper on piston 152. Ball 154 can secure piston 152 and position the stopper within the first receiving portion, preventing spring 153 from contracting. This locks piston 152 and closes discharge port 1513. When the ball 154 is located away from the spring mounting portion 1511 , the blocking effect of the ball 154 on the piston 152 is released, allowing the piston 152 to 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 can be installed at the bottom of the automatic grinding and screening processing equipment 100 to drive the grinding inner cylinder 112, grinding outer cylinder 113, middle inner cylinder 162, middle outer cylinder 163, terminal inner cylinder 122, and terminal outer cylinder 123 to rotate synchronously, thereby rotating the discharge valve 150 mounted on the above structure. When the equipment is in the ore sampling state, the second motor can drive the above cylindrical structure to rotate clockwise, causing the ball bearing 154 to block the top piston 152, positioning the piston 152's stopper in the first accommodating portion. In this state, the spring 153 is stretched, and because the ball bearing 154 blocks the piston 152, the spring 153 cannot be retracted, preventing the waste material from falling through the discharge port 1513. The sample can then flow out through the screen 170. When the device is discharging waste, the second motor drives the cylindrical structure to rotate counterclockwise. During this process, as the second motor begins to accelerate, ball bearing 154 leaves ball bearing track 1512 near spring mounting portion 1511 and rolls to a position away from spring mounting portion 1511. Centrifugal force exerts on piston 152, connected to spring 153, causing it to move away from discharge port 1513, thereby compressing spring 153. When the rotation speed reaches a certain level, spring 153 compresses to its minimum distance, causing the stopper to enter the second receiving portion, closing discharge port 1513 and allowing waste to fall through discharge port 1513. When the second motor rotates for a predetermined time, reaching a predetermined threshold, discharge is complete, and the second motor stops, spring 153 resets, piston 152 returns to its original position, and discharge port 1513 is closed by piston 152. Under the influence of gravity, ball bearing 154 returns to the position near spring mounting portion 1511.

[0071] Through the embodiments of the present disclosure, the coordinated design of spring 153, piston 152, and ball bearing 154, coupled with the rotation of discharge valve 150 and other related structures driven by a second motor, enables automatic opening and closing of discharge port 1513. This achieves a high level of automation, reduces manual intervention, and saves labor costs. When the equipment is in a state such as ore sampling or waste discharge, the second motor drives discharge valve 150 to rotate with the cylindrical structure, precisely controlling the opening and closing of discharge port 1513, preventing waste leakage during the ore sampling process and improving the reliability of the ore sampling and discharge processes.

[0072] In some embodiments, as 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] Sample tube 141 is used to receive the screened target sample discharged from the bottom of terminal screening assembly 120. Sample tube 141 can be arranged below terminal screening assembly 120, and the top of sample tube 141 can be fixedly connected to the bottom of terminal screening assembly 120, so that the target sample discharged from the bottom of terminal screening assembly 120 can directly enter sample tube 141 and flow along sample tube 141 into subsequent processing equipment or collection equipment.

[0074] Waste pipe 142 is used to receive waste discharged from the bottom of terminal screening assembly 120. Waste pipe 142 can be located below terminal screening assembly 120. Waste pipe 142 is arranged in parallel with sample pipe 141 so that when automatic grinding and screening processing equipment 100 is in the waste discharge state, waste discharged from the bottom of terminal screening assembly 120 can enter waste pipe 142 and be discharged outside the equipment along 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 match 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 sampling state, the rotation of the output shaft of the rotating cylinder 143 can drive the baffle 144 to rotate toward the waste tube 142, thereby blocking the waste tube 142 and allowing the target sample to be discharged from the bottom of the terminal screening component 120 to the sample tube 141. When the automatic grinding and screening processing equipment 100 is in the waste discharge state, the output shaft of the rotary cylinder 143 can be rotated to drive the blocking piece 144 to rotate toward the sample tube 141, thereby blocking the sample tube 141 and allowing the waste to 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, which is divided into the sample tube 141 and the waste tube at the end away from the terminal screening component 120. 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 sampling 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, allowing the target sample that has completed grinding and screening to fall along the three-branch pipeline into the sample tube 141 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 along the three-branch pipeline into the waste pipe 142 and be discharged along the waste pipe 142.

[0076] The material receiving mechanism 140 provided in this embodiment effectively blocks the sample tube 141 or the waste tube 142 by rotating the air cylinder 143 to drive the baffle 144. This ensures accurate diversion of the target sample and waste, preventing mixing that could compromise sample quality and thereby improving the accuracy and purity of the sample preparation process. Furthermore, the automated operation of the air cylinder 143 reduces manual intervention, effectively improving the automation level and efficiency of the device.

[0077] In some embodiments, the automatic grinding and screening processing equipment 100 may further include a brush, which is respectively provided at the end of the first rotating mechanism 121 and the end of the second rotating mechanism 161, for cleaning the inner wall of the terminal screening component 120 and the middle screening component 160. A first brush may be provided 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 do not have relative motion. 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 with a large mesh size, the aperture of the screen 170 is small, which may cause part of the sample to be stuck in the holes 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 across 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 terminal screening component 120 and the screen 170 in real time, and continuously keeping 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 removed 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. A second brush may be provided at the end of the second rotating mechanism 161. The second brush and the second rotating mechanism 161 may be fixed to each other so that the second rotating mechanism 161 rotates, driving the second brush at its end to rotate synchronously, without relative motion between the second rotating mechanism 161 and the second rotating mechanism 161. The end of the second brush may contact the sidewall of the central inner cylinder 162. Since the sidewall of the central inner cylinder 162 is provided with a large mesh screen 170 and the pore size of the screen 170 is small, some sample may become lodged in the pores of the screen 170, resulting in sample blockage. The second brush provided at the end of the second rotating mechanism 161 allows the bristles of the second brush to sweep across the screen 170 during rotation, thereby clearing sample stuck in the pores of the screen 170 and cleaning the inner wall of the central screening assembly 160 and the screen 170 in real time, thereby continuously cleaning the inner wall of the central screening assembly 160 and the screen 170 while screening the sample. Because the brush has a limited lifespan, the second brush can be a quick-release component, allowing for rapid removal and replacement. The second brush and second rotating mechanism 161 can also be integrated, and the second rotating mechanism 161 can be a quick-release component, allowing the second rotating mechanism 161 to be quickly removed from or quickly installed on the rotating shaft 130, improving the efficiency of disassembly and assembly of the second rotating mechanism 161 and facilitating maintenance and replacement.

[0078] By using the brush provided in this embodiment, the inner wall and screen 170 of the terminal screening component 120 and the middle screening component 160 can be cleaned in real time while screening the sample, effectively clearing the sample stuck in the hole of the screen 170, avoiding the sample from clogging the screen 170, making the screening process smoother, and ensuring the continuous and efficient operation of the equipment. It can also maintain the accuracy of the screening, avoid the deviation of the 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, avoiding wear or clogging of the screen 170, and extending the service life of the screen 170.

[0079] In some embodiments, as Figure 9 As shown, the grinding mechanism 111 may include a rotating assembly 1111 and a grinding sheet 1112 .

[0080] Rotating assembly 1111 is mounted on rotating shaft 130 and extends radially outward to form a mounting portion. A through-hole may be provided in the center of rotating assembly 1111 for passing rotating shaft 130, allowing rotating assembly 1111 to rotate in conjunction with rotating shaft 130, enabling rotating shaft 130 to drive rotating assembly 1111 to achieve stable rotation. The upper portion of rotating assembly 1111 may extend radially outward to form a mounting portion, which can be used to mount a grinding sheet 1112. As rotating assembly 1111 rotates with rotating shaft 130, the connection between the mounting portion and grinding sheet 1112 drives the grinding sheet 1112 to rotate and grind the sample. Rotating assembly 1111 may extend outward to form multiple mounting portions, each of which can be mounted on a corresponding grinding sheet 1112, thereby improving the grinding efficiency of grinding mechanism 111. Rotating assembly 1111 with multiple mounting portions may be arranged symmetrically around the center to ensure stability of rotating assembly 1111 and grinding sheet 1112 during rotation.

[0081] The grinding sheet 1112 is located on the circumferential side of the rotating assembly 1111 and is mounted on the mounting portion of the rotating assembly 1111 for grinding the sample. The grinding sheet 1112 can be fixedly mounted 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 a bolt connection or other detachable fixing method. The grinding sheet 1112 is fastened to the mounting portion of the rotating assembly 1111 by bolts, which facilitates the disassembly and assembly of the grinding sheet 1112, thereby improving 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 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 vibration and deviation, and improve grinding efficiency and sample uniformity.

[0082] Through this embodiment, the rotating assembly 1111 and the grinding sheet 1112 can effectively improve the overall grinding efficiency of the grinding mechanism 111, shorten the grinding time, and improve the working efficiency of the equipment. By arranging 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. The detachable connection between the grinding sheet 1112 and the mounting portion allows the grinding sheet 1112 to be quickly disassembled and replaced, thereby improving the maintenance efficiency of the equipment, reducing maintenance costs, and extending the service life of the equipment.

[0083] In some embodiments, as Figure 2As shown, the automatic grinding and screening processing equipment 100 may further include: a suction mechanism 190 and a feeding mechanism 200. The suction mechanism 190 is used to suck in 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 in 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 funnel-shaped, with the upper part connected to the suction mechanism 190, and is used to receive the ore particles sucked in 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. The bottom of the feeding mechanism 200 can be connected to the feed port opened at the top of the grinding assembly 110. The sample is fed into the grinding assembly 110 through the feed port via the feeding mechanism 200. The suction mechanism 190 can continuously draw in the sample. The feeding mechanism 200 can be provided with a valve. During the process of the suction mechanism 190 drawing in the sample, the valve can be closed, thereby allowing the drawn-in sample to 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 drawing in the sample, and the valve of the feeding mechanism 200 can be opened, allowing the sample to fall from the feeding mechanism 200 into the grinding assembly 110. Specifically, the weight threshold of the feeding mechanism 200 can be set to 20g, meaning that 20g of sample can be processed each time the sample is ground and sieved.

[0084] According to this embodiment, the suction mechanism 190 and the feeding mechanism 200 can realize the process of automatically sucking in and delivering the sample from the outside into the grinding assembly 110, eliminating the manual loading step, effectively improving the automation level of the equipment, reducing manual intervention, and improving work efficiency. The suction mechanism 190 can continuously suck in the sample and store the sample or deliver the sample to the grinding assembly 110 through the feeding mechanism 200, realizing automated continuous feeding. The amount of sample entering the grinding assembly 110 can be precisely controlled, ensuring that the sample entering the grinding assembly 110 is stable and uniform, and can improve the sample processing quality and sample preparation accuracy.

[0085] In some embodiments, as Figure 10 、 Figure 11As shown, the automatic grinding and screening processing equipment 100 also includes: an equipment housing 210, which is arranged to cover the outer periphery of the grinding assembly 110 and the terminal screening assembly 120. The equipment housing 210 can be arranged to cover the outer periphery of the grinding assembly 110 and the terminal screening assembly 120 to protect the various structural components therein. Since the automatic grinding and screening processing equipment 100 is used for ore sampling, in order to ensure the real-time ore sampling and testing, the automatic grinding and screening processing equipment 100 can be installed on mining site working equipment such as a drill rig, so that ore samples can be processed while the ore is being drilled. This has good real-time performance and can instantly process and test the quality of the ore excavated in the mine while drilling, which can effectively improve the work efficiency of the mining site. Therefore, the automatic grinding and screening processing equipment 100 can be located in an open-pit mine, whose environment is relatively complex. Some external impurities may be blown into the automatic grinding and screening processing equipment 100 by wind, resulting in a high level of impurities in the target sample obtained by the sample preparation equipment. In order to ensure the efficiency and effectiveness of sample processing, and at the same time protect the various functional components inside the automatic grinding and screening processing equipment 100, and 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 end 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 samples during the grinding and screening process, ensuring the purity and quality of the prepared target sample, thereby ensuring the accuracy of subsequent testing or other processing of the target sample. At the same time, it can prevent hard particles, rainwater, wind and sand in the external environment from wearing and corroding the internal structure of the device, 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, thereby improving the safety of device operation.

[0086] In some embodiments, the automatic grinding and screening processing equipment 100 may further include: a drying component 220, which is fixedly arranged inside the equipment housing 210, located on the outer periphery of the grinding component 110 and the outer periphery of the terminal screening component 120, for drying 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 arranged toward the grinding component 110, the middle screening component 160 and the end screening component 120, and can dry the sample during the grinding, screening and falling process of the sample. It can effectively remove moisture from the sample and prevent the sample from sticking, 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, as Figure 1 As shown, the automatic grinding and screening processing equipment 100 may also include: a blower 230, installed in the equipment housing 210, for blowing 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 mounting housing, and a through hole that matches the exhaust port of the blower 230 can be opened on the mounting 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 interior of the mounting housing through the exhaust port, thereby blowing away the waste dust and water vapor in the automatic grinding and screening processing equipment 100, and achieving the cleaning of the internal components of the automatic grinding and screening processing equipment 100, 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 provided 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 can be operated after the ore sampling and waste discharge are completed. Figure 1As shown, the vibrator 240 can be disposed on the outer wall of the grinding assembly 110. The vibration of the vibrator 240 causes small particles of impurities in the grinding assembly 110 and samples stuck in the sieve holes 1121 to fall off with the vibration, thereby cleaning the grinding assembly 110. The vibrator 240 can also be disposed on the outer wall of the middle screening assembly 160. The vibration of the vibrator 240 causes small particles of impurities in the middle screening assembly 160 and samples stuck in the screen 170 to fall off with the vibration, thereby cleaning the middle screening assembly 160. The vibrator 240 can also be disposed on the outer wall of the terminal screening assembly 120. The vibration of the vibrator 240 causes small particles of impurities in the terminal screening assembly 120 and samples stuck in the screen 170 to fall off with the vibration, thereby cleaning the terminal screening assembly 120. The vibrator 240 provided in this embodiment can effectively clean residues on the inner walls of the grinding assembly 110 and the screening assembly, as well as on the screen 170, particularly small sample particles and impurities stuck in the holes of the screen 170. This ensures the cleanliness of the interior of the device and prevents sample residues from affecting subsequent sample preparation. This also extends the service life of the device.

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

[0090] As in any of the aforementioned embodiments of the automatic grinding and screening processing equipment 100, the grinding assembly 110 can grind the sample to obtain a sample with a smaller particle size. The ground sample is then screened by the middle screening assembly 160 and the end screening assembly 120. At the same time, the sample can be dried by the drying assembly 220 to reduce impurities and residual moisture in the sample, thereby obtaining a target sample that meets the requirements of subsequent testing. The sample tube 141 of the material receiving mechanism 140 can be connected to the packaging equipment 310, and the target sample can fall through the sample tube 141 and be transported to the packaging equipment 310 for subsequent processing. During the waste discharge process, the waste can fall through the waste pipe 142 and be discharged outside the automatic grinding and screening processing equipment 100 to facilitate waste disposal.

[0091] The packaging device 310 is connected to the receiving mechanism 140 and is used to receive and package samples discharged from the receiving mechanism 140. The packaging device 310 can be connected to the sample tube 141 of the receiving mechanism 140 to receive target samples processed by the automatic grinding and screening processing device 100. To facilitate testing, the packaging device 310 can bag each processed target sample, thereby distinguishing different batches of processed samples and facilitating subsequent testing by the testing device 320 and data archiving. The packaging device 310 can also bag and code each batch of samples to clearly distinguish between groups of samples.

[0092] Testing equipment 320 is used to test packaged samples. It receives one or more groups of samples bagged by packaging equipment 310 and performs separate tests on each group of samples to obtain test results, thereby determining the quality of the samples and facilitating evaluation and guidance of mining operations based on the 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 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 preparation of samples so that the sample particle size, purity and dryness meet the requirements of subsequent testing; the packaging equipment 310 can bag and label the samples in batches, effectively avoiding sample confusion and ensuring 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, Figure 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 ore samples 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 various structures in the automatic grinding and screening processing equipment, including the grinding component 110. After the grinding component 110 completes the grinding of the sample, the ground sample can be discharged to the component for subsequent processing.

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

[0097] In step S430, the target sample is received by the material receiving mechanism 140. The target sample screened by the terminal screening component 120 can be received by the material receiving mechanism 140, and 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, thereby discharging 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, thereby cleaning and purging the waste dust, water vapor and other impurities inside the automatic grinding and screening processing equipment. After the waste is discharged, the vibrator 240 can also be used to drive the grinding component 110, the middle screening component 160 and the terminal screening component 120 to vibrate, thereby discharging 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 improving sample preparation efficiency and sample quality, reducing manual intervention and sample contamination risks, while ensuring the cleanliness of the equipment interior, extending the equipment service life, and improving the reliability and accuracy of the sample preparation process.

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

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

[0101] Similarly, it should be noted that, in order to simplify the description of this application and thus facilitate understanding of one or more embodiments of the application, the foregoing description of the embodiments of this application sometimes combines multiple features into a single embodiment, figure, or description thereof. However, this disclosure method does not mean that the subject matter of this application requires more features than those recited in the claims. In fact, the features of an embodiment may be fewer than all the features of the individual embodiments disclosed above.

[0102] The basic concepts have been described above. It will be apparent to those skilled in the art that the above disclosure is merely illustrative 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 and remain within 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, configured to receive a sample, wherein the grinding mechanism of the grinding assembly is configured to grind the sample, and the ground sample is discharged from the bottom of the grinding assembly; An end screening assembly is located below the grinding assembly and is used to receive the ground sample. The first rotating mechanism of the end screening assembly is used to push to screen the sample, and the screened sample is discharged from the bottom of the end screening assembly. a rotating shaft, penetrating the grinding assembly and the terminal screening assembly, and 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; A material receiving mechanism is provided below the terminal screening assembly and is used to receive the target sample discharged from the bottom of the terminal screening assembly; The grinding assembly further includes: The grinding inner cylinder has a feeding port on the top, a bottom plate of the grinding inner cylinder for receiving samples and a grinding shaft hole through the center for rotating with the rotating shaft, and a sieve hole on the side wall of the grinding inner cylinder; 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 is coaxial 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. 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; A connecting cylinder is provided between the mounting hole provided on the grinding outer cylinder and the grinding waste outlet provided on the grinding inner cylinder, and a through hole for waste to fall is provided at the bottom of the connecting cylinder; The material receiving mechanism is also used to receive waste materials discharged from the bottom of the terminal screening assembly.

2. The automatic grinding and screening processing equipment according to claim 1, wherein: The terminal screening assembly further includes: The bottom plate of the terminal inner cylinder is used to receive the ground sample and has a terminal shaft hole through the center for rotating 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 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.

3. The automatic grinding and screening processing equipment according to claim 2, wherein: 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.

4. The automatic grinding and screening processing equipment according to claim 3, wherein: The automatic grinding and screening processing equipment also includes: Multiple 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. They 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.

5. The automatic grinding and screening processing equipment according to claim 4, wherein: The discharge valve comprises: A discharge shell, comprising a hollow spring mounting portion and a hollow ball track, wherein 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 provided below the spring mounting portion 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, provided at the spring mounting portion, with one end close to the discharge port connected to the piston, for moving 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.

6. The automatic grinding and screening processing equipment according to claim 3, 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 blocking piece 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.

7. The automatic grinding and screening processing equipment according to any one of claims 1 to 6, wherein: 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; The middle screening assembly comprises: a middle inner cylinder, the bottom plate of the middle inner cylinder is used to receive the ground sample and has a central shaft hole extending through the center thereof for rotating with the rotating shaft, and a screen is provided on the side wall of the middle inner cylinder; a second rotating mechanism is provided in the middle inner cylinder and is mounted on the rotating shaft for pushing the sample 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 screen is discharged from the bottom of the middle outer cylinder to the terminal screening component.

8. The automatic grinding and screening processing equipment according to claim 7, 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.

9. The automatic grinding and screening processing equipment according to claim 7, 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.

10. 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, wherein the rotating assembly extends radially outward to form a mounting portion; The grinding sheet is located on the peripheral side of the rotating assembly and is installed on the mounting portion of the rotating assembly for grinding the sample.

11. 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 to feed the sample sucked by the suction mechanism into the grinding assembly.

12. The automatic grinding and screening processing equipment according to claim 1, wherein: 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.

13. The automatic grinding and screening processing equipment according to claim 12, 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.

14. The automatic grinding and screening processing equipment according to claim 12, wherein: 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 assembly and the terminal screening assembly.

15. The automatic grinding and screening processing equipment according to claim 14, 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.

16. A sample analysis device comprising: The automatic grinding and screening processing equipment according to any one of claims 1 to 15; a packaging device connected to the material receiving mechanism, and configured to receive and package the sample discharged by the material receiving mechanism; The testing equipment is used to test the packaged samples.

17. A sample preparation method, applied to the automatic grinding and screening processing equipment according to any one of claims 1 to 15, wherein: The sample preparation method comprises: receiving the sample through a grinding assembly, grinding the sample, and discharging the ground sample; receiving the ground sample through a terminal screening component, screening the sample, and discharging the target sample; The target sample is received by the material receiving mechanism.

Images