A crushing and grading device for lead-zinc ore

Abstract

The utility model discloses a kind of crushing classification devices for lead-zinc ore, it is related to ore crushing device technical field;And the utility model includes processing box, the top of processing box is equipped with feed hopper, the upper end in processing box is equipped with first blanking plate, the second blanking plate is equipped on the first blanking plate in processing box, the first blanking plate and the second blanking plate are set to two symmetrically inclined distribution settings;The utility model classifies and crushes using two layers of pulverizing roller, upper layer first crushes large piece lead-zinc ore into smaller particle, lower layer is further crushed to smaller specification, after such classification processing, raw material particle size is more uniform, when subsequent truck transportation, the gap between stone block can be effectively reduced, so that transport vehicle can load more raw materials, avoid the space waste problem caused by large piece ore, greatly improve the loading capacity of single transfer, to improve overall transportation efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of ore crushing devices, specifically a crushing and grading device for lead-zinc ore. Background Technology

[0002] Lead-zinc ore refers to mineral deposits rich in the metallic elements lead and zinc. Lead and zinc have a wide range of applications, including the electrical, machinery, military, metallurgical, chemical, light, and pharmaceutical industries. After being excavated, lead-zinc ore is directly transported to trucks. However, because freshly excavated ore particles are relatively large, direct truck transport is challenging due to the heavy load capacity of the trucks and the large size of the particles. This results in many stones being positioned side-by-side, creating spaces that are difficult to access, thus hindering efficient transport. Utility Model Content

[0003] In order to solve the above problems, the purpose of this utility model is to provide a crushing and grading device for lead-zinc mines.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a crushing and grading device for lead-zinc mines, comprising a processing box, a feeding hopper at the top of the processing box, a first feeding plate at the upper end of the processing box, a second feeding plate on the first feeding plate inside the processing box, the first and second feeding plates being arranged in two symmetrically inclined positions, two symmetrically arranged drive shafts rotating below the first and second feeding plates, crushing rollers fixedly mounted on the drive shafts, two adjacent drive shafts connected at one end of the outer wall of the processing box by two meshing drive gears, a baffle plate movably inserted below the first and second feeding plates on the processing box, a support plate fixedly mounted on the outer wall of the processing box near the baffle plate, a rotating shaft rotatably inserted on the support plate, a cam fixedly mounted on the rotating shaft near the baffle plate, the end of the cam abutting against the baffle plate, long rods fixedly mounted on both sides of the outer wall of the processing box near the support plate, the long rods penetrating the baffle plate, and a return spring mounted on the long rods near the baffle plate.

[0005] Preferably, the diameter between the crushing rollers symmetrically arranged below the second feeding plate is smaller.

[0006] Preferably, a first motor is fixedly installed on the outer wall of the processing box near the drive shaft, and the output end of the first motor is coaxially fixedly installed on the drive shaft. A second motor is fixedly installed on the outer wall of the processing box below the rotating shaft, and the output end of the second motor is coaxially fixedly installed on the drive shaft. A support block is fixedly installed on the outer wall of the processing box near the middle end of the rotating shaft, and the rotating shaft moves through the support block.

[0007] Preferably, a conveyor belt is installed below the processing box; vertically arranged shielding plates are fixed on both sides of the lower surface of the processing box located on the conveyor belt, and inclined concentrating plates are fixed on the opposing sides of the two shielding plates near the conveyor belt.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] 1. This utility model uses two layers of crushing rollers for grading and crushing. The upper layer first crushes large pieces of lead-zinc ore into smaller particles, and the lower layer further crushes them into even smaller sizes. After such grading, the raw material particles are more uniform in size. During subsequent loading and transportation, the gaps between stones can be effectively reduced, allowing the transport vehicle to carry more raw materials. This avoids the space waste caused by large pieces of ore, greatly increases the loading capacity of a single transfer, and thus improves the overall transportation efficiency.

[0010] 2. The device uses a second motor to drive a cam to rotate, which, in conjunction with a return spring, intermittently blocks the first feeding plate, thereby controlling the intermittent feeding of raw materials. This design ensures that the amount of raw material entering the crushing roller each time is moderate, avoiding the situation where excessive material is fed at one time, causing the crushing roller to exceed its capacity. This allows the crushing roller to maintain a good crushing state at all times, ensuring the stability of the crushing effect. Both the upper and lower crushing rollers can efficiently complete the crushing operation. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a cross-sectional structural diagram of the processing box of this utility model.

[0014] Figure 3 This is a schematic diagram of the side structure of the processing box of this utility model.

[0015] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0016] In the diagram: 1. Processing box; 11. Conveyor belt; 12. First feeding plate; 121. Second feeding plate; 13. Baffle; 14. Drive shaft; 15. Crushing roller; 16. Drive gear; 17. First motor; 2. Support plate; 21. Cam; 22. Long rod; 23. Return spring; 24. Second motor; 26. Support block; 27. Rotating shaft; 3. Baffle plate; 31. Concentrating plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example: Figure 1-4 As shown, this utility model provides a crushing and grading device for lead-zinc mines, including a processing box 1. A feed hopper is located at the top of the processing box 1. A first discharge plate 12 is located at the upper end of the processing box 1. A second discharge plate 121 is located on the first discharge plate 12 inside the processing box 1. The first discharge plate 12 and the second discharge plate 121 are arranged in two symmetrically inclined configurations. Two symmetrically arranged drive shafts 14 are rotatably mounted below the first discharge plate 12 and the second discharge plate 121. Crushing rollers 15 are fixedly mounted on the drive shafts 14. The crushing rollers 15 symmetrically arranged below the second discharge plate 121 have smaller diameters and are adjacent to each other. Two drive shafts 14 are connected at one end of the outer wall of the processing box 1 by two meshing drive gears 16. A baffle 13 is movably inserted on the processing box 1 below the first feeding plate 12 and the second feeding plate 121. A support plate 2 is fixedly installed on the outer wall of the processing box 1 near the baffle 13. A rotating shaft 27 is rotatably inserted on the support plate 2. A cam 21 is fixedly installed on the rotating shaft 27 near the baffle 13. The end of the cam 21 abuts against the baffle 13. Long rods 22 are fixedly installed on both sides of the outer wall of the processing box 1 near the support plate 2 and the long rods 22 pass through the baffle 13. A return spring 23 is installed on the long rod 22 near the baffle 13.

[0019] A first motor 17 is fixedly installed on the outer wall of the processing box 1 near the drive shaft 14. The output end of the first motor 17 is coaxially fixed on the drive shaft 14. A second motor 24 is fixedly installed on the outer wall of the processing box 1 below the rotating shaft 27. The output end of the second motor 24 is coaxially fixed on the drive shaft 14. The motors are mainly used to power the target to make it rotate, which facilitates operation by the staff.

[0020] A support block 26 is fixedly provided on the outer wall of the processing box 1 near the middle end of the rotating shaft 27. The rotating shaft 27 moves through the support block 26. The support block 26 supports the rotation of the rotating shaft 27 and makes it rotate stably.

[0021] A conveyor belt 11 is installed below the processing box 1. The crushed raw material falls from below onto the conveyor belt 11 and is then transported to the transfer area for transfer.

[0022] Vertically arranged shielding plates 3 are fixedly installed on both sides of the conveyor belt 11 on the lower surface of the processing box 1. An inclined concentrating plate 31 is fixedly installed on the opposite side of the two shielding plates 3 near the conveyor belt 11. The shielding plates 3 and the concentrating plate 31 are both used to concentrate the crushed raw materials onto the conveyor belt 11 to avoid spillage.

[0023] Working principle: When in use, the excavated raw materials can be directly put into the processing box 1. The processing box 1 is first set with two layers of crushing rollers 15. The raw materials will first be crushed by the upper crushing roller 15. Specifically, the first motor 17 will drive one of the drive shafts 14 to rotate. Since the two adjacent drive shafts 14 are connected by the drive gear 16, the other drive shaft 14 will rotate in opposite directions at the same time. Therefore, the two adjacent crushing rollers 15 will rotate in opposite directions at the same time, crushing the raw materials that enter the middle of the crushing rollers 15. After the first layer of crushing, the crushed small pieces of raw materials will fall to the lower layer for secondary crushing. The distance between the two crushing rollers 15 at the lower layer is reduced, so the size of the crushed raw materials is smaller. Thus, through the above-mentioned crushing operation of classifying the excavated raw materials, the size of the raw materials is reduced. During subsequent transportation, it can fill the transport frame to be transferred, avoiding too many gaps between the raw materials, which would prevent more raw materials from being filled at once, thus increasing the transportation efficiency. Finally, the crushed raw materials fall from the lower layer onto the conveyor belt 11 and are transported to the transfer area by the conveyor belt 11 for transfer.

[0024] When the crushing roller 15 is operating, the second motor 24 is also driven simultaneously. The second motor 24 can drive the rotating shaft 27 to rotate. At this time, the cam 21 fixed on the rotating shaft 27 will be driven to rotate. When the end of the cam 21 rotates and abuts against the baffle 13, the baffle 13 will be driven to move to the position shown in the image. Figure 2As shown, the middle ends of the two first feeding plates 12 will open at this time. The raw material above the first feeding plates 12 will be discharged normally between the two crushing rollers 15 for crushing. However, as the cam 21 rotates away from the baffle 13, it is pulled by the return spring 23, and the baffle 13 will quickly return to its original position. Specifically, the baffle 13 itself will block the middle ends of the two first feeding plates 12 to prevent the raw material from falling continuously. Through the above operation, as the cam 21 rotates continuously, the raw material between the first feeding plates 12 is fed intermittently. Therefore, it can be ensured that the crushing rollers 15 crush a certain amount of raw material each time, avoiding excessive feeding at one time, which would cause the crushing rollers 15 to exceed their capacity and reduce the crushing effect. The crushing rollers 15 below will also operate in the same way. Through the above operation, the device can process the raw material in stages, and at the same time protect the operation of the crushing rollers 15, avoiding excessive feeding that would reduce the crushing efficiency and improve the overall working efficiency.

[0025] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be described in detail here.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A crushing and grading device for lead-zinc ore, comprising a processing box (1), characterized in that: The processing box (1) is provided with a feeding hopper at the top. The upper end of the processing box (1) is provided with a first feeding plate (12). The processing box (1) is provided with a second feeding plate (121) on the first feeding plate (12). The first feeding plate (12) and the second feeding plate (121) are arranged in two symmetrically inclined positions. Two symmetrically arranged drive shafts (14) are rotatably arranged below the first feeding plate (12) and the second feeding plate (121). A crushing roller (15) is fixed on the drive shaft (14). The two adjacent drive shafts (14) are connected at one end of the outer wall of the processing box (1) by two meshing drive gears (16). A baffle (13) is movably inserted on the processing box (1) below the first feeding plate (12) and the second feeding plate (121). A support plate (2) is fixedly installed on the outer wall of the processing box (1) near the baffle (13). A rotating shaft (27) is rotatably inserted on the support plate (2). A cam (21) is fixedly installed on the rotating shaft (27) near the baffle (13). The end of the cam (21) abuts against the baffle (13). Long rods (22) are fixedly installed on both sides of the outer wall of the processing box (1) on the support plate (2), and the long rods (22) pass through the baffle (13). A return spring (23) is installed on the long rods (22) near the baffle (13).

2. The crushing and grading device for lead-zinc ore as described in claim 1, characterized in that, The crushing rollers (15) located symmetrically below the second feed plate (121) have smaller diameters.

3. A crushing and grading device for lead-zinc ore as described in claim 2, characterized in that, A first motor (17) is fixedly installed on the outer wall of the processing box (1) near the drive shaft (14). The output end of the first motor (17) is coaxially fixed on the drive shaft (14). A second motor (24) is fixedly installed on the outer wall of the processing box (1) below the rotating shaft (27). The output end of the second motor (24) is coaxially fixed on the drive shaft (14).

4. A crushing and grading device for lead-zinc ore as described in claim 3, characterized in that, A support block (26) is fixedly provided on the outer wall of the processing box (1) near the middle end of the rotating shaft (27), and the rotating shaft (27) moves through the support block (26).

5. A crushing and grading device for lead-zinc ore as described in claim 4, characterized in that, A conveyor belt (11) is installed below the processing box (1).

6. A crushing and grading device for lead-zinc ore as described in claim 5, characterized in that, The lower surface of the processing box (1) is fixed with vertically arranged shielding plates (3) on both sides of the conveyor belt (11), and the two shielding plates (3) are fixed with inclined concentrating plates (31) on the opposite sides of the conveyor belt (11).

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