Hierarchical screening method for geological mineral exploration

Abstract

According to the geological mineral exploration hierarchical screening method, a crushing mechanism, a feeding mechanism and a shaking mechanism are included, the crushing mechanism is composed of two crushing rollers which rotate relatively, synchronous meshing transmission is achieved through a transmission gear, and ore samples are preliminarily crushed; the feeding mechanism is responsible for automatically transferring ore samples which are not completely crushed to the crushing roller for secondary crushing, full crushing of the samples is ensured, the shaking mechanism achieves horizontal reciprocating shaking of a semi-conical screening hopper through a movable groove and a pull rod on a guide plate and a cylindrical block and a W-shaped groove on a rotating shaft, so that the screening quality and efficiency are improved, and the screening efficiency is improved. According to the method, through the automatic operation process, manual intervention is reduced, the labor intensity is reduced, the ore sample crushing and screening efficiency is improved, the accuracy of subsequent analysis and test results is guaranteed, and the method has important practical value in the field of geological mineral exploration.

Description

Technical Field

[0001] The invention relates to the technical field of geological and mineral exploration, and in particular to a geological and mineral exploration hierarchical screening method. Background Art

[0002] Geological and mineral exploration is based on advanced geological science theories. On the basis of a large amount of field geological observations and the collection and collation of relevant geological data, it uses comprehensive geological means and methods such as geological surveying, geophysical and geochemical exploration, and drilling and exploration projects to obtain reliable geological and mineral information. In the process of geological and mineral exploration, ore samples need to be crushed. The crushed ore samples need to be separated and screened according to particle size into crushed stone soil, sandy soil, and silt soil. The size is divided into different levels of particles to improve the efficiency, accuracy, environmental protection and safety of sample preparation, so as to facilitate the subsequent analysis or detection of ore samples.

[0003] The existing Chinese patent with publication number CN117705535A includes a screening mechanism, which includes a screening device body, a feed assembly and a screen. A feed port is opened on the left side of the top of the screening device body, and the feed assembly is installed on the inner side wall of the feed port. Two screens arranged up and down are installed on the inner side of the screening device body. A crushing mechanism for convenient screening is installed on the screening mechanism, and a dust material sampling mechanism for convenient material dust sampling is provided on the left side of the screening mechanism.

[0004] When the above device is in use, the crushing mechanism is set to realize automatic opening and closing and timed discharging, and the operation is simple. When the rotating plate is not opened, the crushing rod crushes the material as much as possible, and the material that cannot be crushed for a period of time is discharged when the rotating plate is opened, thereby improving the stability of the device operation. However, in actual use, since the crushing quality of the ore sample determines the accuracy of the analysis result, the crushing rod can only perform one crushing operation on the ore sample, and the ore sample that is not fully crushed is directly discharged, resulting in a waste of ore samples. At the same time, the ore sample fails to reach the required crushing particle size, affecting the accuracy of subsequent analysis and testing of the ore sample. Therefore, it is difficult to perform a secondary crushing operation on the ore sample that is not fully crushed.

[0005] To this end, we proposed a hierarchical screening method for geological and mineral exploration. Summary of the invention

[0006] The purpose of the present invention is to provide a hierarchical screening method for geological and mineral exploration, which has the advantage of performing secondary crushing operation on insufficiently crushed ore samples to ensure that all ore samples can reach the required crushing particle size, thereby solving the problems in the background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a geological mineral exploration hierarchical screening method, comprising the following steps: S1. Feeding operation: first, the ore sample to be crushed is put into the inner wall of the feeding hopper, and the guide plate and the semicircular sleeve are arranged on the separation roller, so that the guide plate and the semicircular sleeve can guide the ore sample put into the feeding hopper to the crushing roller; S2. Crushing operation: The motor drives one of the crushing rollers to rotate on a fixed axis, and the transmission gears arranged on the two crushing rollers are meshed and connected, so that the two crushing rollers can rotate relative to each other under the action of the transmission gears, thereby crushing the ore sample on the crushing roller; S3, secondary crushing operation: along with the fixed-axis rotation of the crushing roller, the first pulley arranged on the crushing roller drives the first pulley to rotate on the fixed axis, and the transmission belt arranged on the first pulley and the second pulley drives the rotating shaft to rotate on the fixed axis synchronously, and the connecting gear arranged on the rotating shaft meshes with the gear ring through the connecting gear arranged on the rotating shaft, and then the gear ring drives the feeding plate to rotate and transfer the ore sample that is not completely crushed at the bottom of the separation roller to the crushing roller for secondary crushing, thereby improving the uniformity of the crushing of the ore sample; S4, shaking operation: along with the fixed-axis rotation of the rotating shaft, the rotating shaft can drive the columnar block to rotate synchronously, and the movable groove can movably support the pull rod, so that the columnar block can drive the pull rod to move horizontally back and forth on the inner wall of the movable groove through the W-shaped groove, and the pull rod is fixedly connected to the first semi-conical screening bucket, so that the pull rod can drive the first semi-conical screening bucket and the second semi-conical screening bucket to shake horizontally back and forth, so that the first semi-conical screening bucket and the second semi-conical screening bucket can shake and screen the ore sample, thereby improving the screening quality and efficiency; S5. Layered discharge: The first discharge pipe and the second discharge pipe are respectively connected to the first semi-conical screening bucket and the second semi-conical screening bucket through the first discharge pipe and the second discharge pipe arranged on the box body. With the horizontal reciprocating shaking of the first semi-conical screening bucket and the second semi-conical screening bucket, the first discharge pipe and the second discharge pipe can discharge the ore samples of different particle sizes on the first semi-conical screening bucket and the second semi-conical screening bucket in layers, and the third discharge pipe arranged on the box body can make the third discharge pipe discharge the powdered ore samples screened at the bottom of the box body in a centralized manner.

[0008] Preferably, it comprises a box body fixedly supported on the ground, the inner wall of the box body near the end is fixedly connected with a separation roller for separating the crushed ore samples, the top side of the separation roller is provided with a through slot for feeding the crushed ore samples, the end of the box body corresponding to the through slot is penetrated and fixedly connected with a feeding hopper for feeding the ore samples into the separation roller, the separation roller is fixedly connected with guide plates for guiding the ore samples into the separation roller at symmetrical positions on both sides of the through slot, and sliding bars are fixedly connected with sliding bars at symmetrical positions on both sides of the outer contour of the separation roller, the sliding bars on both sides are horizontally movably connected with a first semi-conical screening bucket for screening the separated ore samples, the outer contour of the first semi-conical screening bucket is fixedly connected with a second semi-conical screening bucket for hierarchical screening of the ore samples, and the box body is provided with a crushing mechanism for crushing the ore samples and a feeding mechanism for secondary crushing of the incompletely crushed ore samples.

[0009] Preferably, the crushing mechanism includes crushing rollers for crushing ore samples which are penetrated and rotatably connected on both sides of the box body corresponding to the position of the separation roller, and semicircular sleeves are fixedly connected to the symmetrical positions on both sides of the inner wall of the separation roller, and the inner walls of the two semicircular sleeves on the opposite sides are respectively sleeved on the outer contour of the crushing roller on the adjacent side and movably connected, and transmission gears for meshing transmission are coaxially fixedly connected at the corresponding positions on the same end of the two crushing rollers, and the end of one of the crushing rollers away from the transmission gear is driven to rotate by a power mechanism.

[0010] Preferably, the feeding mechanism includes two semicircular sleeves with annular grooves at both ends, the inner walls of the annular grooves at both ends are rotatably connected with gear rings, and a plurality of evenly placed feeding plates are fixedly connected to the opposite surfaces of the gear rings at both ends, and the feeding plates are in contact with and movably connected to the separation rollers and the semicircular sleeves.

[0011] Preferably, a rotating shaft is penetrated and connected to the box body at symmetrical positions on both sides near the end, and connecting gears that mesh with the gear ring for transmission are coaxially fixed at symmetrical positions on both ends of the rotating shaft. One end of one of the crushing rollers close to the transmission gear is coaxially fixed to a first pulley that drives the rotating shaft to rotate synchronously with the fixed axis, and the end of the rotating shaft corresponding to the first pulley is coaxially fixed to a second pulley, and a transmission belt for transmission connection is sleeved in the slide groove on the outer contour of the first pulley and the second pulley.

[0012] Preferably, the guide plate is provided with a shaking mechanism for driving the first semi-conical screening bucket and the second semi-conical screening bucket to shake and screen the ore sample, and the shaking mechanism includes movable grooves at symmetrical positions on both sides of the guide plate away from one end of the second pulley, and the inner walls of the movable grooves on both sides are horizontally movable and connected with pull rods for pulling the first semi-conical screening bucket and the second semi-conical screening bucket to shake reciprocally, and the bottom ends of the two pull rods are fixedly connected to the first semi-conical screening bucket.

[0013] Preferably, a cylindrical block is coaxially fixed to one end of the rotating shaft close to the pull rod, and a W-shaped groove is opened on the outer contour of the cylindrical block for pulling the first semi-conical screening bucket and the second semi-conical screening bucket to perform horizontal reciprocating swing, and the opposite ends of the pull rods on both sides are penetrated to the inner wall of the W-shaped groove and are movably connected.

[0014] Preferably, one side of the box body is penetrated and fixedly connected with the first discharge pipe and the second discharge pipe for discharging stratified ore samples of different particle sizes on the first semi-conical screening bucket and the second semi-conical screening bucket, the ends of the first discharge pipe and the second discharge pipe are respectively penetrated through the inner walls of the first semi-conical screening bucket and the second semi-conical screening bucket and movably connected, and the ends of the first discharge pipe and the second discharge pipe are provided with the first guide groove and the second guide groove for the first semi-conical screening bucket and the second semi-conical screening bucket to reciprocate, the bottom end of the box body is penetrated and fixedly connected with the third discharge pipe for discharging powdered ore samples, and the inner wall of the bottom end of the box body is fixedly connected with a guide hopper for guiding the powdered ore samples to the third discharge pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up two crushing rollers and the transmission gears on the two crushing rollers, the relative rotation of the two crushing rollers is realized, which effectively improves the crushing efficiency of the ore samples. The ore samples undergo shearing and squeezing between the two crushing rollers, thereby achieving more thorough crushing and ensuring that the ore samples reach the ideal particle size required for subsequent analysis, thereby improving the accuracy of the analysis and test results.

[0016] Second, through the rotational connection between the annular groove and the gear ring on the semicircular sleeve, as well as the uniform placement of the feed plate, the automatic transfer of the incompletely crushed ore samples at the bottom of the separation roller is realized, ensuring that the feed plate transfers the ore samples to the crushing roller for secondary crushing, further improving the crushing quality.

[0017] 3. Through the horizontal movement connection of the movable groove and the pull rod set on the guide plate, as well as the design of the columnar block and the W-shaped groove on the rotating shaft, the horizontal reciprocating shaking of the first semi-conical screening bucket and the second semi-conical screening bucket is realized, which improves the screening accuracy and enables ore samples of different particle sizes to be separated more accurately. In addition, the design of the shaking screening bucket also reduces the blockage and accumulation of materials, improves the screening efficiency and the stability of the equipment.

[0018] 4. The present invention can automatically complete the hierarchical screening of ore samples, realize the full process automation operation of ore samples from feeding, crushing, secondary crushing to screening, reduce manual intervention, reduce labor intensity, and improve the automation and intelligence level of geological and mineral exploration. It provides an efficient and reliable screening method for the field of geological and mineral exploration, and further improves the accuracy of subsequent ore sample analysis and test results.

[0019] The coordinated use of the above-mentioned structure solves the problem that, in actual use of the existing device, since the crushing quality of the ore sample determines the accuracy of the analysis result, the breaker rod can only perform one crushing operation on the ore sample, and the ore sample that is not fully crushed is directly discharged, resulting in waste of the ore sample. At the same time, the ore sample fails to reach the required crushing particle size, affecting the accuracy of subsequent analysis and testing of the ore sample, and it is difficult to perform a secondary crushing operation on the ore sample that is not fully crushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the process of the geological mineral exploration hierarchical screening method of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the separation roller of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the structure at A in the middle; Figure 6 It is a schematic cross-sectional view of the three-dimensional structure of the separation roller of the present invention; Figure 7 It is a cross-sectional schematic diagram of the three-dimensional structure of the first semi-conical screening bucket of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the structure at B in the middle; Fig. 9 It is a schematic diagram of the three-dimensional structure of the part where the gear ring is located in the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1:

[0022] See also Figures 1 to 9 The present invention provides a technical solution: a geological mineral exploration hierarchical screening method, comprising the following steps: S1. Feeding operation: firstly, the ore sample to be crushed is put into the inner wall of the feeding hopper 2, and the guide plate 4 and the semicircular sleeve 8 are arranged on the separation roller 3, so that the guide plate 4 and the semicircular sleeve 8 can guide the ore sample put into the feeding hopper 2 to the crushing roller 9; S2. Crushing operation: One of the crushing rollers 9 is driven by a motor to rotate along a fixed axis, and the transmission gears 10 provided on the two crushing rollers 9 are meshed and connected, so that the two crushing rollers 9 can rotate relatively under the action of the transmission gears 10, thereby crushing the ore sample on the crushing rollers 9; S3, secondary crushing operation: along with the fixed-axis rotation of the crushing roller 9, the first pulley 15 provided on the crushing roller 9 drives the first pulley 15 to rotate on the fixed axis, and the transmission belt 17 provided on the first pulley 15 and the second pulley 16, so that the transmission belt 17 can drive the rotating shaft 13 to rotate on the fixed axis synchronously, through the connecting gear 14 provided on the rotating shaft 13, the connecting gear 14 and the gear ring 11 are meshed and transmitted, and then the gear ring 11 can drive the feeding plate 12 to rotate and transfer the ore sample that is not completely crushed at the bottom of the separation roller 3 to the crushing roller 9 for secondary crushing, thereby improving the uniformity of the crushing of the ore sample; S4, shaking operation: along with the fixed-axis rotation of the rotating shaft 13, the rotating shaft 13 can drive the columnar block 18 to rotate synchronously, and the movable groove 401 can movably support the pull rod 19, so that the columnar block 18 can drive the pull rod 19 to move horizontally back and forth on the inner wall of the movable groove 401 through the W-shaped groove 181, and the pull rod 19 is fixedly connected to the first semi-conical screening bucket 6, so that the pull rod 19 can drive the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7 to shake horizontally back and forth, so that the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7 can shake and screen the ore sample, thereby improving the screening quality and efficiency; S5. Layered discharge: The first discharge pipe 20 and the second discharge pipe 21 provided on the box body 1 are respectively connected with the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7. The first semi-conical screening bucket 6 and the second semi-conical screening bucket 7 are horizontally reciprocated, so that the first discharge pipe 20 and the second discharge pipe 21 can discharge the ore samples of different particle sizes on the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7 in layers, and the third discharge pipe 23 provided on the box body 1 can discharge the powdered ore samples screened at the bottom of the box body 1 in a centralized manner.

[0023] The invention comprises a box body 1 fixedly supported on the ground, wherein a separation roller 3 for separating crushed ore samples is fixedly connected to the inner wall of the box body 1 near the end, and a through slot 301 for feeding the crushed ore samples is opened on the top side of the separation roller 3, and a feeding hopper 2 for feeding the ore samples into the separation roller 3 is penetrated and fixedly connected at the position corresponding to the through slot 301 at the end of the box body 1, and guide plates 4 for guiding the ore samples into the separation roller 3 are fixedly connected at symmetrical positions on both sides of the separation roller 3 near the through slot 301, and sliding bars 5 are fixedly connected at symmetrical positions on both sides of the outer contour of the separation roller 3, and first semi-conical screening buckets 6 for screening the separated ore samples are horizontally movably connected to the sliding bars 5 on both sides, and second semi-conical screening buckets 7 for hierarchical screening of ore samples are fixedly connected to the outer contour of the first semi-conical screening bucket 6, and a crushing mechanism for crushing ore samples and a feeding mechanism for secondary crushing of incompletely crushed ore samples are provided on the box body 1.

[0024] When in use, by setting up the box body 1, first the box body 1 is placed on the ground through the support of an external bracket, so as to improve the stability of ore sample screening, and through the separation roller 3 set on the box body 1, and the two ends of the separation roller 3 are in contact with the inner wall of the box body 1, so that the separation roller 3 is fixedly supported on the inner wall of the box body 1, and through the feeding hopper 2 set on the box body 1 and the through groove 301 opened on the separation roller 3, the feeding hopper 2 and the through groove 301 are in corresponding positions, and the guide plate 4 set on the separation roller 3, when personnel put the ore sample to be crushed into the inner wall of the feeding hopper 2, can enable the guide plate 4 to guide the ore sample inside the feeding hopper 2 to the inside of the separation roller 3.

[0025] By means of the slide bar 5 arranged on the separation roller 3, the slide bar 5 is fixedly supported on the separation roller 3, and the first semi-conical screening bucket 6 arranged on the slide bar 5 enables the slide bar 5 to movably support the moving direction of the first semi-conical screening bucket 6, and by means of the second semi-conical screening bucket 7 arranged on the first semi-conical screening bucket 6, and the second semi-conical screening bucket 7 is fixedly supported on the first semi-conical screening bucket 6, the first semi-conical screening bucket 6 can drive the second semi-conical screening bucket 7 to move and connect synchronously in the horizontal direction along the slide bar 5, and by means of the crushing mechanism arranged on the box body 1, the crushing mechanism can crush the ore sample inside the separation roller 3, and at the same time, the feeding mechanism can transfer the incompletely crushed ore sample to the crushing mechanism for secondary crushing, thereby ensuring the uniformity of the crushing of the ore sample and further improving the efficiency and accuracy of the ore sample analysis and testing. Embodiment 2:

[0026] On the basis of the first embodiment, further: The crushing mechanism includes a box body 1 and a separation roller 3, both of which are symmetrically connected on both sides and penetrated by and fixedly rotatably connected to crushing rollers 9 for crushing ore samples. Semicircular sleeves 8 are fixedly connected to the symmetrical positions on both sides of the inner wall of the separation roller 3. The inner walls of the two semicircular sleeves 8 on the opposite sides are respectively sleeved on the outer contour of the crushing roller 9 on the adjacent side and are movably connected. The corresponding positions on the same end of the two crushing rollers 9 are coaxially fixedly connected with transmission gears 10 for meshing transmission, and the end of one of the crushing rollers 9 away from the transmission gear 10 is driven to rotate by a power mechanism.

[0027] When in use, the crushing roller 9 provided on the housing 1 is connected to the housing 1 for fixed-axis rotation, and the transmission gear 10 provided on the crushing roller 9 can make the transmission gear 10 and the crushing roller 9 coaxially fixedly connected, and the teeth on the two transmission gears 10 mesh with each other, and one of the crushing rollers 9 is driven to rotate by the motor, so that the two crushing rollers 9 can rotate relatively under the action of the transmission gear 10, and the semicircular sleeve 8 provided on the separation roller 3, and the semicircular sleeve 8 is movably sleeved on the outer contour of the crushing roller 9, so that the semicircular sleeve 8 can guide the ore sample to be crushed to between the two crushing rollers 9, and the two crushing rollers 9 rotate relatively, so that the crushing roller 9 can rotate and crush the ore sample, and the crushed ore sample falls to the bottom side of the separation roller 3, so that the separation roller 3 can separate the qualified ore sample on the bottom side and drop it into the inside of the first semi-conical screening bucket 6, so that the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7 can screen the ore samples of different particle sizes. Embodiment three:

[0028] On the basis of the second embodiment, further: The feeding mechanism includes two semicircular sleeves 8, both ends of which are provided with annular grooves 801, the inner walls of the annular grooves 801 at both ends are rotatably connected with gear rings 11, and a plurality of evenly placed feeding plates 12 are fixedly connected to the opposite surfaces of the gear rings 11 at both ends, and the feeding plates 12 are in contact with and movably connected to the separation roller 3 and the semicircular sleeves 8.

[0029] A rotating shaft 13 is penetrated and connected to the box body 1 at symmetrical positions on both sides near the end, and connecting gears 14 that mesh with the gear ring 11 are coaxially fixedly connected at symmetrical positions on both ends of the rotating shaft 13. One end of one of the crushing rollers 9 close to the transmission gear 10 is coaxially fixedly connected to a first pulley 15 that drives the rotating shaft 13 to rotate synchronously with the fixed axis, and the end of the rotating shaft 13 corresponding to the first pulley 15 is coaxially fixedly connected to a second pulley 16, and a transmission belt 17 for transmission connection is sleeved in the slide groove on the outer contour of the first pulley 15 and the second pulley 16.

[0030] When in use, through the toothed ring 11 arranged on the semicircular sleeve 8 and the annular groove 801 opened on the semicircular sleeve 8, the annular groove 801 can limit the toothed ring 11, so that the toothed ring 11 can be rotatably connected on the semicircular sleeve 8, and the feeding plate 12 arranged on the toothed ring 11 is fixedly supported on the toothed ring 11, so that the toothed ring 11 can drive the feeding plate 12 to rotate synchronously, and the feeding plate 12 fits with the semicircular sleeve 8 and the separation roller 3, so that the subsequent feeding plate 12 can transfer the unqualified ore samples after separation to the crushing roller 9 for secondary crushing.

[0031] The rotating shaft 13 is arranged on the housing 1, so that the rotating shaft 13 is connected to the housing 1 for fixed-axis rotation. The first belt pulley 15 and the second belt pulley 16 are arranged on the crushing roller 9 and the rotating shaft 13, and the transmission belt 17 is arranged on the first belt pulley 15 and the second belt pulley 16. The transmission belt 17 can be connected to the first belt pulley 15 and the second belt pulley 16 for transmission. With the crushing roller 9 rotating on a fixed axis, the transmission belt 17 can drive the rotating shaft 13 to rotate synchronously on a fixed axis through the second belt pulley 16 under the action of the first belt pulley 15, and the connecting gear 14 is arranged on the rotating shaft 13, and the connecting gear 14 is connected to the rotating shaft 1 3 is coaxially fixedly connected, so that the rotating shaft 13 can drive the connecting gear 14 to rotate synchronously, and the connecting gear 14 is meshed with the gear ring 11, and then the gear ring 11 can drive the feeding plate 12 to rotate under the action of the connecting gear 14, and the feeding plate 12 can move the unqualified ore samples at the bottom of the separation roller 3 toward the top. When the ore samples of the feeding plate 12 move to the top of the crushing roller 9, the ore samples fall onto the crushing roller 9 under the action of gravity, so that the crushing roller 9 can perform secondary crushing on the unqualified ore samples, ensure the uniformity of the crushing of the ore samples, and further improve the accuracy and efficiency of the ore sample analysis and test results. Embodiment 4:

[0032] On the basis of the third embodiment, further: The guide plate 4 is provided with a shaking mechanism for driving the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7 to shake and screen the ore sample. The shaking mechanism includes movable grooves 401 on both sides of the guide plate 4 at symmetrical positions away from one end of the second pulley 16. The inner walls of the movable grooves 401 on both sides are horizontally movable and connected with pull rods 19 for pulling the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7 to shake reciprocally. The bottom ends of the two pull rods 19 are fixedly connected to the first semi-conical screening bucket 6.

[0033] A cylindrical block 18 is coaxially fixed to one end of the rotating shaft 13 close to the pull rod 19, and a W-shaped groove 181 is provided on the outer contour of the cylindrical block 18 for pulling the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7 to perform horizontal reciprocating swings. The opposite ends of the pull rods 19 on both sides are penetrated to the inner wall of the W-shaped groove 181 and are movably connected.

[0034] When in use, through the movable groove 401 opened on the guide plate 4 and the pull rod 19 arranged on the movable groove 401, the movable groove 401 can movably support the moving direction of the crushing roller 9, so that the pull rod 19 can be horizontally movable and connected on the inner wall of the movable groove 401, and the column block 18 is arranged on the rotating shaft 13, and the column block 18 is coaxially fixedly connected with the rotating shaft 13, so that the rotating shaft 13 can drive the column block 18 to synchronously rotate on a fixed axis, and through the W-shaped groove 181 arranged on the column block 18, and the W-shaped groove 181 movably supports the pull rod 19, along with the fixed axis rotation of the column block 18, the pull rod 19 is moved in the W Under the action of the shaped groove 181, it can move horizontally back and forth along the inner wall of the movable groove 401, and the pull rod 19 is fixedly connected to the first semi-conical screening bucket 6, so that the pull rod 19 can drive the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7 to shake horizontally back and forth synchronously along the slide bar 5, thereby realizing shaking screening of the ore sample, and the apertures of the separation roller 3, the first semi-conical screening bucket 6 and the first semi-conical screening bucket 6 are arranged in sequence from large to small, and the ore samples of crushed stone, sand and silt that are divided into different levels of particles are further screened in layers, thereby improving the screening efficiency and ensuring the accuracy of subsequent analysis and test results of the ore samples. Embodiment five:

[0035] On the basis of the fourth embodiment, further: One side of the box body 1 is penetrated and fixedly connected with a first discharge pipe 20 and a second discharge pipe 21 for discharging stratified ore samples of different particle sizes on the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7, the ends of the first discharge pipe 20 and the second discharge pipe 21 are respectively penetrated to the inner walls of the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7 and are movably connected, and the ends of the first discharge pipe 20 and the second discharge pipe 21 are provided with a first guide groove 201 and a second guide groove 211 for the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7 to reciprocate, the bottom end of the box body 1 is penetrated and fixedly connected with a third discharge pipe 23 for discharging powdered ore samples, and the inner wall of the bottom end of the box body 1 is fixedly connected with a guide hopper 22 for guiding the powdered ore samples to the third discharge pipe 23.

[0036] When in use, the second discharge pipe 21 is fixedly supported on the box body 1 through the first discharge pipe 20 and the second discharge pipe 21 arranged on the box body 1, so that the first discharge pipe 20 and the second discharge pipe 21 can be respectively connected with the inner walls of the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7, and the first guide groove 201 and the second guide groove 211 are provided on the first discharge pipe 20 and the second discharge pipe 21, and the first guide groove 201 and the second guide groove 211 can movably support the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7, so that the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7 can be horizontally reciprocated on the inner walls of the first guide groove 201 and the second guide groove 211, and the first semi-conical screening bucket 6 and the second semi-conical screening bucket 7 can be horizontally reciprocated. The ore samples screened on the semi-conical screening hopper 7 roll toward one end of the first discharge pipe 20 and the second discharge pipe 21 under the action of inclination, so that the first discharge pipe 20 and the second discharge pipe 21 can discharge ore samples of different particle sizes in layers, so as to facilitate personnel to classify and collect ore samples of different particle sizes. The guide hopper 22 and the third discharge pipe 23 are arranged on the box body 1, and the guide hopper 22 and the third discharge pipe 23 are fixedly supported on the box body 1, so that the third discharge pipe 23 is connected to the inner wall of the box body 1, and the second semi-conical screening hopper 7 drops the screened powdered ore samples to the bottom of the box body 1, so that the guide hopper 22 can guide the powdered ore samples to the third discharge pipe 23 for discharge, thereby improving the quality and efficiency of ore sample screening.

[0037] It is further realized that the existing device can perform secondary crushing operation on insufficiently crushed ore samples during actual use, which is easy to use and better than traditional products.

[0038] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

Claims

1. A geological and mineral exploration hierarchical screening method, characterized in that: The following steps are involved: S1. Feeding operation: first, the ore sample to be crushed is fed into the inner wall of the feeding hopper (2), and the guide plate (4) and the semicircular sleeve (8) provided on the separation roller (3) enable the guide plate (4) and the semicircular sleeve (8) to guide the ore sample fed into the feeding hopper (2) onto the crushing roller (9); S2. Crushing operation: one of the crushing rollers (9) is driven by a motor to rotate on a fixed axis, and the transmission gears (10) provided on the two crushing rollers (9) are meshed and connected to each other, so that the two crushing rollers (9) can rotate relative to each other under the action of the transmission gears (10), thereby crushing the ore sample on the crushing roller (9); S3, secondary crushing operation: accompanied by the fixed-axis rotation of the crushing roller (9), the first pulley (15) provided on the crushing roller (9) drives the first pulley (15) to rotate on the fixed axis, and the transmission belt (17) provided on the first pulley (15) and the second pulley (16) drives the rotating shaft (13) to rotate on the fixed axis synchronously, and the connecting gear (14) provided on the rotating shaft (13) is meshed with the gear ring (11) through the connecting gear (14) provided on the rotating shaft (13), so that the gear ring (11) can drive the feeding plate (12) to rotate and transfer the ore sample that is not completely crushed at the bottom of the separation roller (3) to the crushing roller (9) for secondary crushing, thereby improving the uniformity of the crushing of the ore sample; S4, shaking operation: the rotating shaft (13) is accompanied by fixed-axis rotation, so that the rotating shaft (13) can drive the columnar block (18) to synchronously rotate on the fixed axis, and the movable groove (401) can movably support the pull rod (19), so that the columnar block (18) can drive the pull rod (19) to move horizontally back and forth on the inner wall of the movable groove (401) through the W-shaped groove (181), and the pull rod (19) is fixedly connected to the first semi-conical screening bucket (6), so that the pull rod (19) can drive the first semi-conical screening bucket (6) and the second semi-conical screening bucket (7) to shake horizontally back and forth, thereby realizing the first semi-conical screening bucket (6) and the second semi-conical screening bucket (7) to shake and screen the ore sample, thereby improving the screening quality and efficiency; S5. Layered discharge: The first discharge pipe (20) and the second discharge pipe (21) provided on the box body (1) are connected to the first semi-conical screening bucket (6) and the second semi-conical screening bucket (7) respectively, and the first semi-conical screening bucket (6) and the second semi-conical screening bucket (7) are horizontally reciprocated, so that the first discharge pipe (20) and the second discharge pipe (21) can discharge the ore samples of different particle sizes on the first semi-conical screening bucket (6) and the second semi-conical screening bucket (7) in layers, and the third discharge pipe (23) provided on the box body (1) can discharge the powdered ore samples screened at the bottom of the box body (1) in a centralized manner.

2. A geological and mineral exploration hierarchical screening method according to claim 1, characterized in that: The invention comprises a box body (1) fixedly supported on the ground, wherein a separation roller (3) for separating crushed ore samples is fixedly connected to the inner wall of the box body (1) near the end, and a through slot (301) for feeding the crushed ore samples is provided on the top side of the separation roller (3), and a feeding hopper (2) for feeding the ore samples into the separation roller (3) is penetrated and fixedly connected at a position corresponding to the through slot (301) at the end of the box body (1), and a feeding hopper (2) for feeding the ore samples into the separation roller (3) is fixedly connected at symmetrical positions on both sides of the separation roller (3) near the through slot (301). A guide plate (4) is provided inside the separation roller (3), and sliding rods (5) are fixedly connected at symmetrical positions on both sides of the outer contour of the separation roller (3), and first semi-conical screening buckets (6) for screening the separated ore samples are horizontally movably connected to the sliding rods (5) on both sides, and a second semi-conical screening bucket (7) for hierarchical screening of the ore samples is fixedly connected to the outer contour of the first semi-conical screening bucket (6), and a crushing mechanism for crushing the ore samples and a feeding mechanism for secondary crushing of the incompletely crushed ore samples are provided on the box body (1).

3. A geological and mineral exploration hierarchical screening method according to claim 2, characterized in that: The crushing mechanism comprises a box body (1) and a separation roller (3) at symmetrical positions on both sides thereof corresponding to the separation roller (3), both of which are penetrated and rotatably connected with a crushing roller (9) for crushing the ore sample; semicircular sleeves (8) are fixedly connected at symmetrical positions on both sides of the inner wall of the separation roller (3); the inner walls of the two semicircular sleeves (8) on opposite sides are respectively sleeved on the outer contour of the crushing roller (9) on the adjacent side and are movably connected; the corresponding positions on the same end of the two crushing rollers (9) are coaxially fixedly connected with a transmission gear (10) for meshing transmission; one end of one of the crushing rollers (9) away from the transmission gear (10) is driven to rotate by a power mechanism; the feeding mechanism comprises two semicircular sleeves (8) at both ends of which are provided with annular grooves (801); the inner walls of the annular grooves (801) at both ends are rotatably connected with toothed rings (11); a plurality of evenly placed feeding plates (12) are fixedly connected on opposite surfaces of the toothed rings (11) at both ends, and the feeding plate (12) is fixedly connected to the feeding plate (12) on opposite sides of the toothed rings (11); and the feeding plate (12) is fixedly connected to the feeding plate (12) on opposite sides of the toothed rings (11). The material plate (12) is attached to and movably connected with the separation roller (3) and the semicircular sleeve (8); a rotating shaft (13) is penetrated and connected to the box body (1) at symmetrical positions on both sides near the end, and a connecting gear (14) is coaxially fixedly connected to the gear ring (11) at symmetrical positions on both ends of the rotating shaft (13); one end of one of the crushing rollers (9) near the transmission gear (10) is coaxially fixedly connected to a first belt pulley (15) for driving the rotating shaft (13) to rotate synchronously with the fixed axis, and the end of the rotating shaft (13) at a position corresponding to the first belt pulley (15) is coaxially fixedly connected to a second belt pulley (16); a transmission belt (17) is sleeved in a slide groove on the outer contour of the first belt pulley (15) and the second belt pulley (16) for transmission connection; the guide plate (4) is provided with a shaking mechanism for driving the first semi-conical screening bucket (6) and the second semi-conical screening bucket (7) to shake and screen the ore sample.

4. A geological and mineral exploration hierarchical screening method according to claim 3, characterized in that: The shaking mechanism comprises movable grooves (401) formed at symmetrical positions on the guide plates (4) on both sides away from one end of the second pulley (16).

5. A geological and mineral exploration hierarchical screening method according to claim 4, characterized in that: The inner walls of the movable grooves (401) on both sides are horizontally movably connected to pull rods (19) for pulling the first semi-conical screening bucket (6) and the second semi-conical screening bucket (7) to reciprocate, and the bottom ends of the two pull rods (19) are fixedly connected to the first semi-conical screening bucket (6).

6. A geological and mineral exploration hierarchical screening method according to claim 5, characterized in that: A columnar block (18) is coaxially fixedly connected to one end of the rotating shaft (13) close to the pull rod (19), and a W-shaped groove (181) is provided on the outer contour of the columnar block (18) for pulling the first semi-conical screening bucket (6) and the second semi-conical screening bucket (7) to perform horizontal reciprocating shaking.

7. A geological and mineral exploration hierarchical screening method according to claim 6, characterized in that: The opposite ends of the pull rods (19) on both sides penetrate the inner wall of the W-shaped groove (181) and are movably connected.

8. A geological and mineral exploration hierarchical screening method according to claim 7, characterized in that: A first discharge pipe (20) and a second discharge pipe (21) for discharging stratified ore samples of different particle sizes on the first semi-conical screening bucket (6) and the second semi-conical screening bucket (7) are penetrated and fixedly connected to one side of the box body (1); the ends of the first discharge pipe (20) and the second discharge pipe (21) are respectively penetrated to the inner walls of the first semi-conical screening bucket (6) and the second semi-conical screening bucket (7) and are movably connected; and the ends of the first discharge pipe (20) and the second discharge pipe (21) are both provided with a first guide groove (201) and a second guide groove (211) for the first semi-conical screening bucket (6) and the second semi-conical screening bucket (7) to swing back and forth; a third discharge pipe (23) for discharging powdered ore samples is penetrated and fixedly connected to the bottom end of the box body (1); and a guide hopper (22) for guiding the powdered ore samples to the third discharge pipe (23) is fixedly connected to the inner wall of the bottom end of the box body (1).

Images