Mine stone crushing device with flying dust treatment equipment

Abstract

The mine stone crushing device comprises a machine body, a feeding opening formed in the top of the machine body in a communicating mode, a first collecting box arranged on the right side of the machine body, a second collecting box arranged in the machine body and a machining assembly arranged in the machine body. The machining assembly comprises a dust removal mechanism arranged on the right side of the machine body, a crushing mechanism is arranged in the machine body, a screening mechanism is arranged at the bottom of the crushing mechanism, the output end of an air cylinder is fixedly connected with a first mounting plate, and a suction fan is slidably connected with a rectangular hole through a first sliding block. The solid columns are slidably connected with the hollow columns through the first springs, the connecting blocks are slidably connected to the outer walls of the second sliding rods, and the crushing rollers are slidably connected with the second sliding rods through the connecting blocks. The problem that the dust removal effect is affected due to the fact that a filter layer arranged in a suction fan is inconvenient to disassemble and clean in an existing device is solved.

Description

Technical Field

[0001] This invention relates to the field of stone crushing equipment technology, specifically to a stone crushing device for mining equipped with dust control equipment. Background Technology

[0002] Currently, existing stone crushers can be broadly categorized into medical stone crushers and mining stone crushers. Stone crushers refer to crushing machinery where the content of particles larger than three millimeters in the discharge accounts for more than 50% of the total discharge volume. Existing mining stone crushers generate significant noise and produce large amounts of dust during the crushing process, severely polluting the working environment and the atmosphere, causing harm to human health. In stone crushing operations without dust prevention measures, the dust concentration at the working surface can reach hundreds or thousands of milligrams. This large amount of dust not only seriously pollutes the surrounding environment but also causes significant harm to the health of construction workers and nearby residents.

[0003] According to a mining crusher with dust removal function disclosed in Chinese Patent Publication No. CN107262203A, the device is equipped with a crusher body, a feed inlet, a first crushing gear, a second crushing gear, a dust concentration detection device, a suction fan, a control box, a support frame, a stone conveying frame, a discharge port, a transmission device, a display, a power button, a suction fan button, a processing device, a stone storage box, and a motor. It solves the problem that traditional crushers generate a large amount of dust, which seriously pollutes the working environment and the atmospheric environment, and harms human health. However, the device is not convenient for disassembling and cleaning the filter layer inside the suction fan, thus affecting the dust removal effect.

[0004] To address this issue, we propose a mining crushing device equipped with dust control equipment. Summary of the Invention

[0005] The purpose of this invention is to provide a mining crushing device equipped with dust control equipment to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a stone crushing device for mining equipped with dust control equipment, including a machine body; Connect to the feed inlet located at the top of the machine body; The first collection box is located on the right side of the fuselage; A second collection box located inside the fuselage; The machine also includes a processing component located inside the machine body, the processing component including a dust removal mechanism located on the right side of the machine body, a crushing mechanism located inside the machine body, and a screening mechanism located at the bottom of the crushing mechanism.

[0007] According to the above technical solution, the dust removal mechanism includes a rectangular hole on the right side of the machine body, a protective plate fixedly installed on the inner wall of the hole, a first sliding groove on the right side of the machine body, a first sliding rod fixedly connected to the inner wall of the groove, a first slider slidably connected to the outer wall of the first sliding rod, a first mounting plate fixedly connected to the right side of the first slider, a suction fan fixedly installed on the upper part of the first mounting plate, a second mounting plate fixedly connected to the right side of the machine body, a cylinder fixedly installed on the upper part of the second mounting plate, a discharge pipe connected to the right side of the suction fan, a C-shaped fixing seat fixedly connected to the outer wall of the discharge pipe, a hollow column fixedly connected to the bottom of the C-shaped fixing seat, a solid column sleeved on the hollow column, a first spring fixedly connected to the bottom of the inner wall of the hollow column, the top of the first spring fixedly connected to the solid column, a pressure plate fixedly connected to the top of the solid column, and a purification screen provided on the upper part of the pressure plate.

[0008] According to the above technical solution, the crushing mechanism includes a third slide groove on the left side of the machine body, a third slide rod fixedly connected to the inner wall of the groove, a third mounting plate slidably connected to the outer wall of the third slide rod, a motor fixedly mounted on the upper part of the third mounting plate, a rotating shaft fixedly connected to the output end of the motor, a crushing roller fixedly connected to the outer wall of the rotating shaft, a connecting block rotatably connected to the right end of the rotating shaft via a bearing, a second slide groove on the inner wall of the machine body, a second slide rod fixedly connected to the inner wall of the groove, a limit plate provided on the inner wall of the third slide groove, a fixed plate fixedly connected to the left side of the machine body, and a bidirectional threaded rod rotatably connected to one side of the fixed plate via a bearing.

[0009] According to the above technical solution, the screening mechanism includes a fourth sliding groove formed on the inner wall of the machine body. A fourth sliding rod is fixedly connected to the inner wall of the groove. A second slider is slidably connected to the outer wall of the fourth sliding rod. A second spring is fixedly connected to the inner wall of the fourth sliding groove. The top of the second spring is fixedly connected to the second slider. A screen plate is fixedly connected to the right side of the second slider. A connecting rod is fixedly connected to the upper part of the screen plate. A discharge port is formed on the right side of the machine body. An inner groove is formed on the inner wall of the port. A locking block is slidably connected to the inner wall of the groove.

[0010] According to the above technical solution, the cylinder output end is fixedly connected to the first mounting plate, the suction fan is fitted to the outer wall of the machine body, and the suction fan is slidably connected to the rectangular hole through the first slider. By manually controlling the cylinder to push the first mounting plate left and right, the suction fan fixedly mounted on the upper part of the first mounting plate will move left and right under the cooperation of the first slider and the first sliding rod, thereby increasing the working range of the suction fan and thus making the suction effect of the suction fan better.

[0011] According to the above technical solution, the purification net is fitted onto the outlet of the discharge pipe. The solid column is slidably connected to the hollow column via a first spring. The upper surface of the pressure plate is made of anti-slip material. When the suction fan is turned on, the sucked-in dust will be discharged through the discharge pipe. Under the action of the purification net, the dust is purified. Under the action of the first spring, the solid column presses upward against the pressure plate, thereby fixing the purification net at the outlet of the discharge pipe. This makes it convenient for manual disassembly and cleaning of the purification net, thus improving the purification effect of the purification net.

[0012] According to the above technical solution, there are two crushing rollers, symmetrically distributed inside the machine body with the center line of the machine body as the axis of symmetry. The connecting block is slidably connected to the outer wall of the second slide rod. The crushing roller is slidably connected to the second slide rod through the connecting block. The rotation of the motor output end drives the rotating shaft to rotate, thereby rotating the crushing roller fixedly connected to the outer wall of the rotating shaft, thus achieving the effect of crushing the ore. By manually rotating the bidirectional threaded rod clockwise, the third mounting plate threaded to the outer wall of the bidirectional threaded rod moves towards the center, thereby moving the crushing roller towards the center. Different degrees of crushing of the ore can be performed according to the requirements, thus making the device more widely applicable.

[0013] According to the above technical solution, the bidirectional threaded rod is rotatably connected to the limiting plate through a bearing, the limiting plate is fixedly connected to the inner wall of the third slide groove, the third mounting plate is slidably connected to the third slide rod through the bidirectional threaded rod, and the third mounting plate is threadedly connected to the bidirectional threaded rod. The limiting plate prevents the two crushing rollers from moving too close together and thus colliding.

[0014] According to the above technical solution, the second spring is sleeved on the outer wall of the fourth slide rod, the second slider is slidably connected to the fourth slide rod through the second spring, and the screen plate is slidably connected to the machine body through the second slider. The screen plate can screen the crushed stone and screen out crushed stone of different requirements. The crushing roller rotates and collides with the connecting rod. With the cooperation of the second spring and the fourth slide rod, the second slider moves up and down reciprocally, thereby making the screen plate fixedly connected to the right side of the second slider vibrate, so as to improve the screening effect of the screen plate.

[0015] According to the above technical solution, there are two locking blocks, which are symmetrically distributed in the inner groove with the center line of the machine body as the axis of symmetry. The locking blocks are fixedly connected to the screen plate. Through the cooperation between the locking blocks and the inner groove, the screen plate vibrates more smoothly.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are: (1) In this invention, by setting up a dust removal mechanism, the first mounting plate is pushed left and right by a cylinder controlled by the user. Under the action of the first slider and the first slide rod, the suction fan fixedly mounted on the upper part of the first mounting plate will move left and right, thereby increasing the working range of the suction fan and thus making the dust removal effect of the suction fan better.

[0017] (2) In this invention, by setting up a dust removal mechanism, when the suction fan is turned on, the dust sucked in will be discharged through the discharge pipe. Under the action of the purification net, the dust is purified. Under the action of the first spring, the solid column presses against the pressure plate, thereby fixing the purification net at the outlet of the discharge pipe, which makes it convenient for manual disassembly and cleaning of the purification net, thus making the purification effect of the purification net better.

[0018] (3) The present invention is equipped with a crushing mechanism. The motor output end rotates to drive the rotating shaft to rotate, thereby causing the crushing roller fixedly connected to the outer wall of the rotating shaft to rotate, thereby achieving the effect of crushing the ore. By manually rotating the bidirectional threaded rod clockwise, the third mounting plate threaded to the outer wall of the bidirectional threaded rod moves to the middle, thereby causing the crushing roller to move to the middle. The ore can be crushed to different degrees according to the needs, thus making the device more widely applicable.

[0019] (4) In this invention, by setting a screening mechanism, the crushed stone can be screened through the screen plate to screen out crushed stone of different requirements. The crushing roller rotates and collides with the connecting rod. Under the action of the second spring and the fourth sliding rod, the second slider moves up and down repeatedly, thereby making the screen plate fixedly connected to the right side of the second slider vibrate, so that the screening effect of the screen plate is better. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall partial structure of the present invention; Figure 3 This is a schematic diagram of the dust removal mechanism of the present invention; Figure 4 This is a partial cross-sectional structural diagram of the dust removal mechanism of the present invention; Figure 5 This is a schematic diagram of the crushing mechanism of the present invention; Figure 6 This is a schematic diagram of the crushing mechanism of the present invention from another perspective; Figure 7 This is a partial structural diagram of the screening mechanism of the present invention; Figure 8 This is a partial cross-sectional structural diagram of the screening mechanism of the present invention; In the diagram: 1. Machine body; 2. Feed inlet; 3. Processing components; 31. Dust removal mechanism; 311. Fan; 312. Discharge pipe; 313. Protective plate; 314. Rectangular hole; 315. First slider; 316. First slide rod; 317. First slide groove; 318. First mounting plate; 319. Second mounting plate; 3110. Cylinder; 3111. C-shaped fixed seat; 3112. Pressure plate; 3113. Solid column; 3114. First spring; 3115. Hollow column; 3116. Cleaning screen; 32. Crushing mechanism; 321. Third mounting plate; 322. Motor; 323. Rotating shaft; 324. Crushing roller; 325. Connecting block; 326. Second slide bar; 327. Second slide groove; 328. Third slide groove; 329. Third slide bar; 3210. Fixing plate; 3211. Bidirectional threaded rod; 3212. Limiting plate; 33. Screening mechanism; 331. Screen plate; 332. Connecting rod; 333. Fourth slide groove; 334. Second slider; 335. Fourth slide bar; 336. Second spring; 337. Inner groove; 338. Locking block; 339. Discharge port; 4. First collection box; 5. Second collection box. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0022] like Figure 1-8As shown, the present invention provides a technical solution: a mining crushing device with dust control equipment, comprising a machine body 1, a feed inlet 2 connected to the top of the machine body 1, a first collection box 4 located on the right side of the machine body 1, a second collection box 5 located inside the machine body 1, and a processing assembly 3 located inside the machine body 1. The processing assembly 3 includes a dust removal mechanism 31 located on the right side of the machine body 1. A crushing mechanism 32 is located inside the machine body 1, and a screening mechanism 33 is located at the bottom of the crushing mechanism 32. The dust removal mechanism 31 includes a rectangular hole 314 opened on the right side of the machine body 1, with a protective plate 313 fixedly installed on the inner wall of the hole. A first chute 317 is opened on the right side of the machine body 1, and a second chute 313 is fixedly connected to the inner wall of the chute. A sliding rod 316 has a first slider 315 slidably connected to its outer wall. A first mounting plate 318 is fixedly connected to the right side of the first slider 315. A suction fan 311 is fixedly mounted on the upper part of the first mounting plate 318. A second mounting plate 319 is fixedly connected to the right side of the machine body 1. A cylinder 3110 is fixedly mounted on the upper part of the second mounting plate 319. A discharge pipe 312 is connected to the right side of the suction fan 311. A C-shaped fixing seat 3111 is fixedly connected to the outer wall of the discharge pipe 312. A hollow column 3115 is fixedly connected to the bottom of the C-shaped fixing seat 3111. A solid column 3113 is sleeved on the hollow column 3115. A first spring 3114 is fixedly connected to the bottom of the inner wall of the hollow column 3115. The top of spring 3114 is fixedly connected to solid column 3113. A pressure plate 3112 is fixedly connected to the top of solid column 3113. A purification screen 3116 is provided on the upper part of pressure plate 3112. The output end of cylinder 3110 is fixedly connected to first mounting plate 318. The suction fan 311 is fitted against the outer wall of the body 1. The suction fan 311 is slidably connected to rectangular hole 314 through first slider 315. By manually controlling cylinder 3110 to push first mounting plate 318 left and right, the suction fan 311 fixedly mounted on the upper part of first mounting plate 318 will move left and right under the cooperation of first slider 315 and first sliding rod 316, thereby increasing the working range of suction fan 311 and thus improving suction efficiency. The suction effect of the fan 311 is better. The purification net 3116 is fitted at the outlet of the discharge pipe 312. The solid column 3113 is slidably connected to the hollow column 3115 through the first spring 3114. The upper surface of the pressure plate 3112 is made of non-slip material. When the suction fan 311 is turned on, the dust sucked in will be discharged through the discharge pipe 312. Under the action of the purification net 3116, the dust is purified. Under the action of the first spring 3114, the solid column 3113 presses upward against the pressure plate 3112, thereby fixing the purification net 3116 at the outlet of the discharge pipe 312, which makes it convenient for manual disassembly and cleaning of the purification net 3116, thus making the purification effect of the purification net 3116 better.

[0023] When the device crushes the ore, the cylinder 3110 and the suction fan 311 are first opened manually. The cylinder 3110 pushes the first mounting plate 318 left and right. Through the cooperation of the first slider 315 and the first sliding rod 316, the suction fan 311, which is fixedly installed on the upper part of the first mounting plate 318, moves left and right, thereby increasing the working range of the suction fan 311 and improving the dust collection effect of the suction fan 311. When disassembling and cleaning the purification screen 3116, it can be pulled out manually. After cleaning, the purification screen 3116 is inserted into the lower part of the pressure plate 3112 manually. Under the action of the first spring 3114, the solid column 3113 presses upward against the pressure plate 3112, thereby fixing the purification screen 3116 at the outlet of the discharge pipe 312. Example 2

[0024] Based on Example 1, a preferred embodiment of the mining stone crushing device with dust control equipment provided by the present invention is as follows: Figure 1-8 As shown: The crushing mechanism 32 includes a third slide groove 328 on the left side of the machine body 1. A third slide rod 329 is fixedly connected to the inner wall of the groove. A third mounting plate 321 is slidably connected to the outer wall of the third slide rod 329. A motor 322 is fixedly mounted on the upper part of the third mounting plate 321. A rotating shaft 323 is fixedly connected to the output end of the motor 322. A crushing roller 324 is fixedly connected to the outer wall of the rotating shaft 323. A connecting block 325 is rotatably connected to the right end of the rotating shaft 323 via a bearing. A second slide groove 327 is provided on the inner wall of the machine body 1. A second slide rod 326 is fixedly connected to the inner wall of the groove. A limit plate 3212 is provided on the inner wall of the third slide groove 328. A fixing plate 3210 is fixedly connected to the left side of the machine body 1. A bidirectional threaded rod 3211 is rotatably connected to one side of the fixing plate 3210 via a bearing. There are two crushing rollers 324, symmetrically distributed inside the machine body 1 with the center line of the machine body 1 as the axis of symmetry. The connecting block 325 is slidably connected to the outer wall of the second slide rod 326. The crushing rollers 324 are connected to the outer wall of the second slide rod 326 via a bearing. The connecting block 325 is slidably connected to the second slide rod 326. The rotation of the output end of the motor 322 drives the rotating shaft 323 to rotate, causing the crushing roller 324, which is fixedly connected to the outer wall of the rotating shaft 323, to rotate, thereby achieving the effect of crushing the ore. By manually rotating the bidirectional threaded rod 3211 clockwise, the third mounting plate 321, which is threadedly connected to the outer wall of the bidirectional threaded rod 3211, moves towards the center, thereby moving the crushing roller 324 towards the center. Different degrees of crushing of the ore can be performed according to the requirements, thus making the device more applicable. The bidirectional threaded rod 3211 is rotatably connected to the limiting plate 3212 through the bearing. The limiting plate 3212 is fixedly connected to the inner wall of the third slide groove 328. The third mounting plate 321 is slidably connected to the third slide rod 329 through the bidirectional threaded rod 3211. The third mounting plate 321 is threadedly connected to the bidirectional threaded rod 3211. The limiting plate 3212 prevents the two crushing rollers 324 from moving too close and colliding.

[0025] First, the motor 322 is manually turned on, and the output of the motor 322 drives the rotating shaft 323 to rotate, thereby rotating the crushing roller 324 fixedly connected to the outer wall of the rotating shaft 323, thus achieving the effect of crushing the ore. By manually rotating the bidirectional threaded rod 3211 clockwise or counterclockwise, the third mounting plate 321 threadedly connected to the outer wall of the bidirectional threaded rod 3211 can be moved to the center or to both sides through the cooperation of the third slide rod 329, the second slide rod 326 and the connecting block 325, thereby adjusting the distance between the two crushing rollers 324. Different degrees of crushing of the ore can be performed according to the needs, thus making the device more widely applicable. Example 3

[0026] Based on Example 1, a preferred embodiment of the mining stone crushing device with dust control equipment provided by the present invention is as follows: Figure 1-8 As shown: The screening mechanism 33 includes a fourth slide groove 333 formed on the inner wall of the machine body 1. A fourth slide rod 335 is fixedly connected to the inner wall of the groove. A second slider 334 is slidably connected to the outer wall of the fourth slide rod 335. A second spring 336 is fixedly connected to the inner wall of the fourth slide groove 333. The top of the second spring 336 is fixedly connected to the second slider 334. A screen plate 331 is fixedly connected to the right side of the second slider 334. A connecting rod 332 is fixedly connected to the upper part of the screen plate 331. A discharge port 339 is formed on the right side of the machine body 1. An inner groove 337 is formed on the inner wall of the port. A locking block 338 is slidably connected to the inner wall of the groove. The second spring 336 is sleeved on the outer wall of the fourth slide rod 335. The second slider 334 is slidably connected to the fourth slide rod 335 through the second spring 336. Next, the screen plate 331 is slidably connected to the machine body 1 via the second slider 334. The screen plate 331 can screen the crushed stone to select crushed stone of different requirements. The crushing roller 324 rotates and collides with the connecting rod 332. With the cooperation of the second spring 336 and the fourth slider 335, the second slider 334 moves up and down reciprocally, thereby making the screen plate 331 fixedly connected to the right side of the second slider 334 vibrate, so that the screening effect of the screen plate 331 is better. There are two locking blocks 338, which are symmetrically distributed in the inner groove 337 with the center line of the machine body 1 as the axis of symmetry. The locking blocks 338 are fixedly connected to the screen plate 331. Through the cooperation of the locking blocks 338 and the inner groove 337, the screen plate 331 vibrates more smoothly.

[0027] When the crushing roller 324 rotates, it presses against the connecting rod 332. Through the cooperation of the second spring 336 and the fourth slide rod 335, the second slider 334 moves up and down, thereby causing the screen plate 331, which is fixedly connected to the right side of the second slider 334, to vibrate, thus improving the screening effect of the screen plate 331.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stone crushing device for mining equipped with dust control equipment, comprising a machine body (1); Connect the feed inlet (2) located at the top of the machine body (1); The first collection box (4) is located on the right side of the fuselage (1); A second collection box (5) is installed inside the fuselage (1); And the processing assembly (3) disposed inside the body (1), characterized in that: The processing component (3) includes a dust removal mechanism (31) located on the right side of the machine body (1), a crushing mechanism (32) located inside the machine body (1), and a screening mechanism (33) located at the bottom of the crushing mechanism (32).

2. A mining stone crushing device with dust control equipment according to claim 1, characterized in that: The dust removal mechanism (31) includes a rectangular hole (314) on the right side of the body (1), a protective plate (313) fixedly installed on the inner wall of the hole, a first sliding groove (317) on the right side of the body (1), a first sliding rod (316) fixedly connected to the inner wall of the groove, a first slider (315) slidably connected to the outer wall of the first sliding rod (316), a first mounting plate (318) fixedly connected to the right side of the first slider (315), a suction fan (311) fixedly installed on the upper part of the first mounting plate (318), a second mounting plate (319) fixedly connected to the right side of the body (1), and a cylinder (311) fixedly installed on the upper part of the second mounting plate (319). 0), the right side of the suction fan (311) is connected to the discharge pipe (312), the outer wall of the discharge pipe (312) is fixedly connected to the C-shaped fixing seat (3111), the bottom of the C-shaped fixing seat (3111) is fixedly connected to the hollow column (3115), the hollow column (3115) is sleeved with the solid column (3113), the bottom of the inner wall of the hollow column (3115) is fixedly connected to the first spring (3114), the top of the first spring (3114) is fixedly connected to the solid column (3113), the top of the solid column (3113) is fixedly connected to the pressure plate (3112), and the upper part of the pressure plate (3112) is provided with a purification net (3116).

3. A mining stone crushing device with dust control equipment as described in claim 1, characterized in that: The crushing mechanism (32) includes a third slide groove (328) opened on the left side of the machine body (1). A third slide rod (329) is fixedly connected to the inner wall of the groove. A third mounting plate (321) is slidably connected to the outer wall of the third slide rod (329). A motor (322) is fixedly installed on the upper part of the third mounting plate (321). A rotating shaft (323) is fixedly connected to the output end of the motor (322). A crushing roller (324) is fixedly connected to the outer wall of the rotating shaft (323). A connecting block (325) is rotatably connected to the right end of the rotating shaft (323) through a bearing. A second slide groove (327) is opened on the inner wall of the machine body (1). A second slide rod (326) is fixedly connected to the inner wall of the groove. A limit plate (3212) is provided on the inner wall of the third slide groove (328). A fixing plate (3210) is fixedly connected to the left side of the machine body (1). A bidirectional threaded rod (3211) is rotatably connected to one side of the fixing plate (3210) through a bearing.

4. A mining stone crushing device with dust control equipment according to claim 1, characterized in that: The screening mechanism (33) includes a fourth slide groove (333) opened on the inner wall of the machine body (1). A fourth slide rod (335) is fixedly connected to the inner wall of the groove. A second slider (334) is slidably connected to the outer wall of the fourth slide rod (335). A second spring (336) is fixedly connected to the inner wall of the fourth slide groove (333). The top of the second spring (336) is fixedly connected to the second slider (334). A screen plate (331) is fixedly connected to the right side of the second slider (334). A connecting rod (332) is fixedly connected to the upper part of the screen plate (331). A discharge port (339) is opened on the right side of the machine body (1). An inner groove (337) is opened on the inner wall of the port. A locking block (338) is slidably connected to the inner wall of the groove.

5. A mining stone crushing device with dust control equipment according to claim 2, characterized in that: The output end of the cylinder (3110) is fixedly connected to the first mounting plate (318), the suction fan (311) is fitted to the outer wall of the body (1), and the suction fan (311) is slidably connected to the rectangular hole (314) through the first slider (315).

6. A mining stone crushing device with dust control equipment according to claim 2, characterized in that: The purification net (3116) is fitted to the outlet of the discharge pipe (312), the solid column (3113) is slidably connected to the hollow column (3115) through the first spring (3114), and the upper surface of the pressure plate (3112) is made of anti-slip material.

7. A mining stone crushing device with dust control equipment according to claim 3, characterized in that: There are two crushing rollers (324), which are symmetrically distributed inside the machine body (1) with the center line of the machine body (1) as the axis of symmetry. The connecting block (325) is slidably connected to the outer wall of the second slide rod (326). The crushing roller (324) is slidably connected to the second slide rod (326) through the connecting block (325).

8. A mining stone crushing device with dust control equipment according to claim 3, characterized in that: The bidirectional threaded rod (3211) is rotatably connected to the limiting plate (3212) via a bearing. The limiting plate (3212) is fixedly connected to the inner wall of the third slide groove (328). The third mounting plate (321) is slidably connected to the third slide rod (329) via the bidirectional threaded rod (3211). The third mounting plate (321) is threadedly connected to the bidirectional threaded rod (3211).

9. A mining stone crushing device with dust control equipment according to claim 4, characterized in that: The second spring (336) is sleeved on the outer wall of the fourth slide rod (335), the second slider (334) is slidably connected to the fourth slide rod (335) through the second spring (336), and the sieve plate (331) is slidably connected to the machine body (1) through the second slider (334).

10. A mining stone crushing device with dust control equipment according to claim 4, characterized in that: There are two card blocks (338), which are symmetrically distributed in the inner groove (337) with the center line of the machine body (1) as the axis of symmetry. The card blocks (338) are fixedly connected to the sieve plate (331).

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