ore sample crushing and preparation machine

Abstract

A kind of ore sample sample breaking sample preparation machine, including support, the upper end of support is fixedly provided with the intermediate box of front side opening, the top middle part of the intermediate box is provided with lower sample port, first lower sample hopper is fixedly arranged in the intermediate box below lower sample port, sample receiving box is placed on the bottom plate of sample receiving cavity bottom surface of the bottom surface of intermediate box, both ends and rear end edge of sample receiving cavity bottom plate are provided with sample leakage hole, second lower sample hopper is fixedly arranged below sample receiving cavity bottom plate of support, the top of second lower sample hopper is communicated with sample leakage hole, the upper end of intermediate box is fixedly provided with installation box, sample breaking roller mechanism is arranged in the installation box, top cover is connected by hinge in the top of installation box, lock bolt mechanism is arranged between installation box and top cover, dust extraction port is arranged in the rear end of installation box, the top end of top cover is provided with feed hopper, the bottom surface of installation box is provided with fall sample port, first lower sample hopper is communicated with the fall sample port.The present application can avoid the broken sample to be splashed outward, effectively reduce dust pollution, and be easy to clean.

Description

Technical Field

[0001] This utility model belongs to the field of laboratory mineral sample preparation technology, specifically relating to a mineral sample crushing and preparation machine. Background Technology

[0002] During gold mining, ore samples need to be collected and chemically tested to determine indicators such as gold content. The ore samples are first coarsely crushed, then finely ground to a particle size of less than 200 mesh, dried, and then subjected to further testing.

[0003] However, current ore sample coarse crushing equipment has an unreasonable structure. During operation, crushed samples frequently splatter outwards, requiring operators to constantly clean up the splattered samples, increasing their workload. Simultaneously, the crushing process generates a large amount of dust that enters the working environment, posing a health hazard to workers. Furthermore, the crushed samples inside the equipment are difficult to clean, further increasing the operator's workload.

[0004] Therefore, there is an urgent need in the existing technology for a mineral sample fragmentation and preparation machine that can avoid outward splashing of fragments, effectively reduce dust pollution, and is easy to clean. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a mineral sample crushing and preparation machine that can avoid outward splashing of fragments, effectively reduce dust pollution, and is easy to clean.

[0006] The purpose of this utility model is achieved through the following technical solution: a mineral sample crushing and preparation machine, including a support frame, a middle box with a front opening fixedly installed at the upper end of the support frame, a sample inlet provided at the top center of the middle box, a first sample hopper fixedly installed below the sample inlet inside the middle box, the bottom surface of the middle box being a sample receiving chamber bottom plate, a sample receiving box placed on the sample receiving chamber bottom plate, the sample receiving box being located directly below the first sample hopper, and sample leakage holes provided at the left and right ends and the rear edge of the sample receiving chamber bottom plate, these sample leakage holes being located on the left and right sides and the rear side of the sample receiving box, the support frame... A second sample hopper is fixedly installed below the bottom plate of the sample receiving chamber. The top of the second sample hopper is connected to the sample leakage hole. An installation box is fixedly installed at the upper end of the intermediate box. The installation box is equipped with a sample crushing roller mechanism driven by a motor. The top of the installation box is connected to a top cover by a hinge. A latch mechanism is provided between the installation box and the top cover. A dust extraction port is provided at the rear end of the installation box. The dust extraction port is connected to a dust collection pipeline through a pipe fitting. A feed hopper is provided at the top of the top cover. A sample drop port is provided on the bottom surface of the installation box. The first sample hopper is connected to the sample drop port through the sample drop port.

[0007] The sample crushing roller mechanism includes a first sample crushing roller rotatably disposed in the mounting box, a second sample crushing roller rotatably disposed in the mounting box, a belt drive mechanism connecting the motor and the first sample crushing roller, and a gear drive mechanism connecting the first sample crushing roller and the second sample crushing roller.

[0008] Mounting seats are provided on both the left and right sides of the first sample crushing roller, and the shaft of the first sample crushing roller is installed in the two mounting seats. Mounting seats are also provided on both the left and right sides of the second sample crushing roller, and the shaft of the second sample crushing roller is installed in the two mounting seats. Adjusting blocks are provided on the sides of these mounting seats via connecting bolts. A threaded hole is provided in the middle of the adjusting block. A through hole is provided on the side of the mounting box facing the threaded hole. The adjusting bolt passes through the through hole and connects to the corresponding threaded hole. A threaded hole is provided on the bottom surface of the mounting seat. A slotted hole is provided on the bottom surface of the mounting seat facing the threaded hole. A locking bolt passes upward through the slotted hole and connects to the threaded hole.

[0009] The belt drive mechanism includes a drive pulley connected to the power output end of the motor, a driven pulley connected to the shaft of the first sample crushing roller, and a drive belt connecting the drive pulley and the driven pulley.

[0010] The gear transmission mechanism includes a first gear connected to the shaft of the first sample crushing roller and a second gear connected to the shaft of the second sample crushing roller, wherein the first gear meshes with the second gear.

[0011] The top cover includes a raised portion and two flat portions formed at the left and right ends of the raised portion. The flat portions are located above the mounting base. The lower end face of the top cover is provided with two downwardly extending side bars, which are located on the left and right sides of the gap between the first sample crushing roller and the second sample crushing roller, respectively.

[0012] The latch mechanism includes a locking groove on the top cover, a connecting seat on the mounting box, a connector connected to the connecting seat via a hinge shaft, a latch fixedly mounted on the connector, and a locking nut screwed onto the threaded section at the front end of the latch. When the latch mechanism is in the locked state, the latch is located in the locking groove, the locking nut contacts the locking groove, and the locking nut is tightened onto the threaded section.

[0013] A baffle is provided on the top of the front side of the sample receiving box, which is higher than the lower port of the first sample hopper. A sample receiving box handle is provided on the front side of the sample receiving box.

[0014] A switch plate is provided at the lower outlet of the second sample hopper.

[0015] A dust collection hood is installed above the feed hopper. The dust collection hood is equipped with a handle and is connected to the dust collection pipeline through a corrugated pipe.

[0016] The beneficial effects of this invention are: it avoids the outward splashing of fragmented samples, eliminating the need for separate cleaning of splashed fragments and reducing the workload of operators. It effectively collects dust during the sample fragmentation process, significantly reducing dust pollution and protecting the health of operators. Fragments on the bottom plate of the sample receiving chamber can fall through the leakage hole into the second lower sample hopper, and then be discharged downwards into the sample receiving tube. Even if some fragments remain on the bottom plate of the sample receiving chamber, operators can sweep them through the leakage hole into the second lower sample hopper using a broom. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the sample crushing roller mechanism; Figure 3 This is a top view of the base plate of the sample assembly. Figure 4 yes Figure 1 An enlarged structural diagram of part A; Figure 5 This is a top view of the top cover structure. Figure 6 This is a structural diagram showing the way the top cover and the mounting box fit together.

[0018] In the diagram: 1-Bracket; 2-Mounting box; 3-Top cover; 4-Feed hopper; 5-Dust collection hood; 6-Handle; 7-Corrugated pipe; 8-First crushing roller; 9-Second crushing roller; 10-First gear; 11-Second gear; 12-Driven pulley; 13-Driven pulley; 14-Transmission belt; 15-First protective cover; 16-Second protective cover; 17-Mounting base; 18-Adjusting block; 19-Adjusting bolt; 20-Connecting bolt; 21-Oval hole; 22-Locking bolt; 23-Intermediate box; 24-Sample receiving chamber; 25-First sample hopper; 26-Sample receiving chamber bottom plate; 27-Sample leakage hole; 28-Sample receiving box; 29-Sample receiving box handle; 30-Second sample hopper; 31-Switch insert plate; 32-Belt drive mechanism; 33-Gear drive mechanism; 34-Lower end outlet of the second sample hopper; 35-Lock mechanism; 36-Lock; 37-Lock groove; 38-Locking nut; 39-Connecting seat; 40-Hinge shaft; 41-Threaded section; 42-Connecting piece; 43-Dust extraction port; 44-Side baffle; 45-Hinge; 46-Raised part; 47-Flat plate part; 48-Baffle; 49-Sample crushing roller mechanism. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings.

[0020] like Figure 1 , Figure 3As shown, a mineral sample crushing and preparation machine includes a support 1. A central box 23 with a front opening is fixedly mounted on the upper end of the support 1. A sample inlet is located at the center of the top of the central box 23. A first sample hopper 25 is fixedly mounted below the sample inlet inside the central box 23. The bottom surface of the central box 23 is a sample receiving chamber bottom plate. A sample receiving box 28 is placed on the sample receiving chamber bottom plate, directly below the first sample hopper 25. Sample leakage holes 27 are provided at the left and right ends and the rear edge of the sample receiving chamber bottom plate. These leakage holes 27 are located on the left and right sides and the rear side of the sample receiving box 28. The support 1 is located below the sample receiving chamber bottom plate. A second sample hopper 30 is fixedly installed in the middle box 23. The top of the second sample hopper 30 is connected to the sample leakage hole 27. An installation box 2 is fixedly installed at the upper end of the middle box 23. A sample crushing roller mechanism 49 driven by a motor is installed inside the installation box 2. The top of the installation box 2 is connected to the top cover 3 by a hinge 45. A latch mechanism 35 is provided between the installation box 2 and the top cover 3. A dust extraction port 43 is provided at the rear end of the installation box 2. The dust extraction port 43 is connected to the dust collection pipeline through a pipe fitting. A feed hopper 4 is provided at the top of the top cover 3. A sample drop port is provided on the bottom surface of the installation box 2. The first sample hopper 25 is connected to the sample drop port through the sample drop port.

[0021] During operation, a mineral sample is added to the feed hopper 4. After being crushed by the crushing roller mechanism 49, the sample flows downward through the first sample hopper 25 into the sample receiving box 28. A small amount of fragments splashed out from the sample receiving box 28 enters the second sample hopper 30 through the sample leakage hole 27 in the sample receiving chamber 24. A sample receiving hopper is placed below the lower outlet 34 of the second sample hopper 30, and the fragments fall into the hopper. The dust extraction port 43 is connected to the dust collection pipeline through a pipe fitting. During operation, the dust extraction port 43 continuously extracts dust to avoid dust pollution. The top cover 3 is hinged to the top of the mounting box 2. After opening the latch mechanism 35, the operator can easily open the top cover 3 for maintenance and repair work.

[0022] like Figure 2 As shown, the sample crushing roller mechanism 49 includes a first sample crushing roller 8 rotatably disposed within the mounting box 2, a second sample crushing roller 9 rotatably disposed within the mounting box 2, a belt drive mechanism 32 connecting the motor and the first sample crushing roller 8, and a gear drive mechanism 33 connecting the first sample crushing roller 8 and the second sample crushing roller 9. A first protective cover 15 is provided on the outside of the belt drive mechanism 32, and a second protective cover 16 is provided on the outside of the gear drive mechanism 33.

[0023] Mounting seats 17 are provided on both the left and right sides of the first sample crushing roller 8. The shaft of the first sample crushing roller 8 is rotatably mounted in the two mounting seats 17. Mounting seats 17 are also provided on both the left and right sides of the second sample crushing roller 9. The shaft of the second sample crushing roller 9 is rotatably mounted in the two mounting seats 17. Adjusting blocks 18 are provided on the sides of these mounting seats 17 via connecting bolts 20. A threaded hole is provided in the middle of the adjusting block 18. A through hole is provided on the side of the mounting box 2 opposite to the threaded hole. An adjusting bolt 19 passes through the through hole and connects to the corresponding threaded hole. A threaded hole is provided on the bottom surface of the mounting seat 17. A slotted hole 21 is provided on the bottom surface of the mounting seat 17 opposite to the threaded hole. A locking bolt 22 passes upward through the slotted hole 21 and connects to the threaded hole. During equipment maintenance, the locking bolt 22 is loosened, and the distance between the first sample crushing roller 8 and the second sample crushing roller 9 can be finely adjusted by turning the adjusting bolt 19.

[0024] The belt drive mechanism 32 includes a drive pulley 13 connected to the power output end of the motor, a driven pulley 12 connected to the shaft of the first crushing roller 8, and a drive belt 14 connected between the drive pulley 13 and the driven pulley 12.

[0025] The gear transmission mechanism 33 includes a first gear 10 connected to the shaft of the first crushing roller 8 and a second gear 11 connected to the shaft of the second crushing roller 9, wherein the first gear 10 and the second gear 11 mesh.

[0026] like Figure 5 , Figure 6 As shown, the top cover 3 includes a raised portion 46 and two flat portions 47 formed at the left and right ends of the raised portion 46. The flat portions 47 are located above the mounting base 17. The lower end surface of the top cover 3 is provided with two downwardly extending side baffles 44, which are located on the left and right sides of the gap between the first crushing roller 8 and the second crushing roller 9, respectively. During operation, the two side baffles 44 can block the mineral sample, allowing it to pass only through the gap between the first crushing roller 8 and the second crushing roller 9.

[0027] like Figure 4 As shown, the latch mechanism 35 includes a locking groove 37 on the top cover 3, a connecting seat 39 on the mounting box 2, a connecting member 42 connected to the connecting seat 39 via a hinge shaft 40, a latch 36 fixedly mounted on the connecting member 42, and a locking nut 38 screwed onto the threaded section 41 at the front end of the latch 36. When the latch mechanism 35 is in the locked state, the latch 36 is located in the locking groove 37, the locking nut 38 contacts the locking groove 37, and the locking nut 38 is tightened onto the threaded section 41. When it is necessary to open the top cover 3 for equipment maintenance, simply loosen the locking nut 38 and remove the latch 36 from the locking groove 37.

[0028] See Figure 1A baffle 48 is provided on the top of the front side of the sample receiving box 28. The baffle 48 is higher than the lower port of the first sample hopper 25. The baffle 48 can effectively prevent the mineral sample from splashing forward. A sample receiving box handle 29 is provided on the front side of the sample receiving box 28, which makes it easy for the operator to take it out from the sample receiving cavity 24.

[0029] A switch plate 31 is provided at the lower outlet 34 of the second sample hopper 30. When the switch plate 31 is opened, the mineral sample that leaks from the sample leakage hole 27 enters the sample receiving hopper.

[0030] A dust collection hood 5 is installed above the feed hopper 4. The dust collection hood 5 is equipped with a handle 6 and is connected to the dust collection pipeline via a corrugated pipe 7. When adding ore samples to the feed hopper 4, the operator can hold the handle 6 to move the dust collection hood 5 to the side of the feed hopper 4 for easy operation. After adding the ore samples, the operator can remove the dust collection hood 5.

[0031] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A mineral sample crushing and preparation machine, comprising a support frame, characterized in that: The upper end of the bracket is fixedly equipped with a central box with a front opening. A sample inlet is located at the center of the top of the central box. A first sample hopper is fixedly installed inside the central box below the sample inlet. The bottom surface of the central box is a sample receiving chamber bottom plate. A sample receiving box is placed on the sample receiving chamber bottom plate, directly below the first sample hopper. Sample leakage holes are provided at both ends and the rear edge of the sample receiving chamber bottom plate. These leakage holes are located on the left, right, and rear sides of the sample receiving box. The bracket is fixedly equipped with a first sample hopper below the sample receiving chamber bottom plate. The second sample hopper has its top connected to the sample leakage hole. An installation box is fixedly installed at the upper end of the intermediate box. The installation box contains a sample crushing roller mechanism driven by a motor. The top of the installation box is connected to a top cover by a hinge. A latch mechanism is provided between the installation box and the top cover. A dust extraction port is provided at the rear end of the installation box. The dust extraction port is connected to a dust collection pipeline through a pipe fitting. A feed hopper is provided at the top of the top cover. A sample drop port is provided on the bottom surface of the installation box. The first sample hopper is connected to the sample drop port through the sample drop port.

2. The mineral sample crushing and preparation machine according to claim 1, characterized in that: The sample crushing roller mechanism includes a first sample crushing roller rotatably disposed in the mounting box, a second sample crushing roller rotatably disposed in the mounting box, a belt drive mechanism connecting the motor and the first sample crushing roller, and a gear drive mechanism connecting the first sample crushing roller and the second sample crushing roller.

3. The mineral sample crushing and preparation machine according to claim 2, characterized in that: Mounting seats are provided on both the left and right sides of the first sample crushing roller, and the shaft of the first sample crushing roller is installed in the two mounting seats. Mounting seats are also provided on both the left and right sides of the second sample crushing roller, and the shaft of the second sample crushing roller is installed in the two mounting seats. Adjusting blocks are provided on the sides of these mounting seats via connecting bolts. A threaded hole is provided in the middle of the adjusting block. A through hole is provided on the side of the mounting box facing the threaded hole. The adjusting bolt passes through the through hole and connects to the corresponding threaded hole. A threaded hole is provided on the bottom surface of the mounting seat. A slotted hole is provided on the bottom surface of the mounting seat facing the threaded hole. A locking bolt passes upward through the slotted hole and connects to the threaded hole.

4. The mineral sample crushing and preparation machine according to claim 3, characterized in that: The belt drive mechanism includes a drive pulley connected to the power output end of the motor, a driven pulley connected to the shaft of the first sample crushing roller, and a drive belt connecting the drive pulley and the driven pulley.

5. The mineral sample crushing and preparation machine according to claim 3, characterized in that: The gear transmission mechanism includes a first gear connected to the shaft of the first sample crushing roller and a second gear connected to the shaft of the second sample crushing roller, wherein the first gear meshes with the second gear.

6. The mineral sample crushing and preparation machine according to claim 3, characterized in that: The top cover includes a raised portion and two flat portions formed at the left and right ends of the raised portion. The flat portions are located above the mounting base. The lower end face of the top cover is provided with two downwardly extending side bars, which are located on the left and right sides of the gap between the first sample crushing roller and the second sample crushing roller, respectively.

7. The mineral sample crushing and preparation machine according to claim 1, characterized in that: The latch mechanism includes a locking groove on the top cover, a connecting seat on the mounting box, a connector connected to the connecting seat via a hinge shaft, a latch fixedly mounted on the connector, and a locking nut screwed onto the threaded section at the front end of the latch. When the latch mechanism is in the locked state, the latch is located in the locking groove, the locking nut contacts the locking groove, and the locking nut is tightened onto the threaded section.

8. The mineral sample crushing and preparation machine according to claim 1, characterized in that: A baffle is provided on the top of the front side of the sample receiving box, which is higher than the lower port of the first sample hopper. A sample receiving box handle is provided on the front side of the sample receiving box.

9. The mineral sample crushing and preparation machine according to claim 1, characterized in that: A switch plate is provided at the lower outlet of the second sample hopper.

10. The mineral sample crushing and preparation machine according to claim 1, characterized in that: A dust collection hood is installed above the feed hopper. The dust collection hood is equipped with a handle and is connected to the dust collection pipeline through a corrugated pipe.

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