An open cut coal mine coal breaking apparatus

Abstract

The application discloses an open-pit coal mine coal crushing device, wherein a crushing assembly is arranged, the crushing assembly comprises a crusher, a first conveying belt, a dust removal part, a dust sweeping part and a transmission part, a screening assembly is arranged on one side of the crushing assembly and comprises a second conveying belt and a screening machine, and a cleaning assembly is arranged on the top of the crushing assembly and comprises a shell, a floating column, a flushing ring, a horizontal one-way valve and a vertical one-way valve. When the crushing assembly is used, the generated dust is covered and absorbed by the water mist under the cooperation of the cleaning assembly, and the cleaning assembly is also regularly cleaned, so that the cleaning efficiency is ensured, and the pollution of the crushing assembly is reduced.

Description

Technical Field

[0001] This invention relates to the field of fully mechanized coal mining technology, and in particular to a coal crushing device for open-pit coal mines. Background Technology

[0002] A coal mine is an area where humans extract coal resources in coal-rich mining areas. When the coal seam is very close to the surface, the coal is usually mined by directly stripping the surface soil layer. This is called an open-pit coal mine. After mining, the coal is conveyed to the inside of a crusher using a conveyor belt. The purpose of coal crushing is to transform the coal from larger lumps or blocks into smaller particles to meet the requirements of subsequent processes such as coal preparation, washing, and combustion.

[0003] Existing equipment can crush coal blocks fed into the crushing box through a crusher, and then screen them under the action of a subsequent screening machine. However, a large amount of dust is generated when crushing coal. If not treated, the dust will cause environmental pollution. However, the existing crushing equipment may become clogged due to excessive environmental dust, resulting in a significant reduction or even failure of the dust suppression effect. Therefore, a self-cleaning dust suppression device is needed for the crusher. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is how to protect the dust suppression components from being contaminated and blocked when suppressing dust in a crusher.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a coal crushing device for open-pit coal mines, which includes a crushing component, a screening component and a cleaning component.

[0007] As a preferred embodiment of the open-pit coal crushing equipment of the present invention, the crushing component includes a crusher, a first conveyor belt, a dust collector, an ash sweeper, and a transmission component. The first conveyor belt is disposed at one end of the crusher, the ash sweeper is disposed at the top of the crusher, the dust collector is disposed on both sides of the ash sweeper, and the transmission component is disposed at the bottom of the dust collector.

[0008] A screening assembly, disposed on one side of the crushing assembly, includes a second conveyor belt and a screening machine. One end of the second conveyor belt is located at the bottom of the crusher at the end away from the first conveyor belt, and the screening machine is located at the bottom of the other end of the second conveyor belt; and...

[0009] A cleaning component, located on top of the crushing component, includes a sump, a float, a punch ring, a horizontal one-way valve, and a vertical one-way valve. The sump is located at the bottom of the dust collector, the float is located on one side of the sump, the punch ring is located at the bottom of the sump, the horizontal one-way valve is located on one side of the dust collector, and the vertical one-way valve is evenly arranged around the inside of the punch ring.

[0010] In a preferred embodiment of the open-pit coal crushing equipment of the present invention, the dust removal component is provided with a support plate, a water tank, a water pipe, a water pipe head, and a fourth sealing ring; the support plate is disposed on both sides of the top of the crusher; the water tank is disposed on the top of the support plate; the water pipe is disposed at the bottom of the water tank; the water pipe head is disposed at the bottom of the water pipe; and the fourth sealing ring is sleeved on the bottom of the water pipe head.

[0011] The top side of the water pipe head is provided with a side transverse hole, and the transverse one-way valve is engaged with the side transverse hole.

[0012] In a preferred embodiment of the open-pit coal crushing equipment of the present invention, the ash-sweeping component is provided with a support block, a screw, a screw block, and a cleaning brush; the support block is disposed on both sides of the top of the crusher; the screw is rotatably connected between the two support blocks; the screw block is sleeved on the outside of the screw; and the cleaning brush is disposed at the bottom of the screw block.

[0013] In a preferred embodiment of the open-pit coal crushing equipment of the present invention, the transmission component is provided with a motor, a worm gear and a worm wheel; the motor is located on the side of the crusher; the worm gear is located on the top of the motor; the worm wheel is located on the side of the worm gear, and the worm gear and the worm wheel cooperate with each other.

[0014] In a preferred embodiment of the open-pit coal crushing equipment of the present invention, the transmission component is further provided with an insert block, an insert plate, a nozzle, and a third sealing ring; the insert block is fixed to the top of the worm gear; the insert plate is disposed on the top of the insert block; the nozzle is disposed on the top of the insert plate; and the third sealing ring is disposed on the top of the nozzle.

[0015] The bottom of the insertion plate has a square hole and the side has an annular groove, and the square hole and the insertion block are matched.

[0016] As a preferred embodiment of the open-pit coal crushing equipment of the present invention, the transmission component is further provided with a disc, a connecting rod and a fork; the disc is disposed on one side of the worm gear; one end of the connecting rod is rotatably connected to the edge of the disc, and the other end is rotatably connected to the middle of the fork; one end of the fork is rotatably connected to the support plate, and the other end of the fork clamps the insert disc.

[0017] As a preferred embodiment of the open-pit coal crushing equipment of the present invention, the transmission component is further provided with a clamping block, the clamping block including a half column, a clamping tube and a clamping spring; the clamping tube is rotatably fitted to the inner wall of one end of the fork rod; one end of the clamping spring is fixedly connected to the fork rod, and the other end is fixedly connected to the clamping block; the end of the clamping block away from the clamping spring is fitted with the annular groove of the insert plate.

[0018] As a preferred embodiment of the open-pit coal crushing equipment of the present invention, the storage tank is provided with a central hole, a side vertical hole and a No. 1 sealing ring; the central hole is located in the middle of the top of the storage tank and is matched with the water pipe head; the side vertical hole is located on one side of the central hole; the No. 1 sealing ring is located on the top of the inner wall of the central hole.

[0019] In a preferred embodiment of the open-pit coal crushing equipment of the present invention, the float column is provided with a float block, a float column and a second sealing ring; the float block is disposed at the top of the float column; the float column and the side vertical hole are fitted together; the second sealing ring is disposed at the top of the float block;

[0020] The side of the float is uniformly surrounded by air grooves.

[0021] As a preferred embodiment of the open-pit coal crushing equipment of the present invention, the punch ring and the bottom of the accumulator are threadedly connected, the punch ring is uniformly surrounded by side vertical holes, and the vertical one-way valve cooperates with the side vertical holes.

[0022] The top side of the nozzle is evenly surrounded by mist holes.

[0023] The beneficial effects of this invention are as follows: with the cooperation of the cleaning component, the dust generated by the crushing component during use will be covered and absorbed by the water mist, and the cleaning component will also clean itself regularly to avoid clogging when the dust is too large, thus ensuring the cleaning efficiency and reducing the pollution of the crushing component. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0025] Figure 1 This is a structural diagram of coal crushing equipment in an open-pit coal mine.

[0026] Figure 2 This is a structural diagram of the crushing components of a coal crushing equipment in an open-pit coal mine.

[0027] Figure 3This is a structural diagram of the transmission components of a coal crushing equipment in an open-pit coal mine.

[0028] Figure 4 This is a cross-sectional view of the cleaning components of a coal crushing equipment in an open-pit coal mine.

[0029] Figure 5 This is a structural diagram of the cleaning components of a coal crushing equipment in an open-pit coal mine.

[0030] Figure 6 A cross-sectional view of the cleaning components of an open-pit coal crushing equipment during spraying.

[0031] Figure 7 This is a cross-sectional view of the self-cleaning component of a coal crushing equipment in an open-pit coal mine. Detailed Implementation

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0035] Example 1

[0036] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a coal crushing device for open-pit coal mines, which includes a crushing component 100, a screening component 200, and a cleaning component 300.

[0037] Specifically, the crushing assembly 100 includes a crusher 105, a first conveyor belt 101, a dust collector 102, a dust sweeper 103, and a transmission component 104. The first conveyor belt 101 is located at one end of the crusher 105, the dust sweeper 103 is located at the top of the crusher 105, the dust collector 102 is located on both sides of the dust sweeper 103, and the transmission component 104 is located at the bottom of the dust collector 102.

[0038] The crushing assembly 100 is used to crush large pieces of coal and remove dust. The large pieces of coal are conveyed to the top of the crusher 105 via the first conveyor belt 101, where they are crushed. At the same time, the dust collector 102 uses water mist to cover the generated dust, while the dust sweeper 103 cleans the crushing gears on the top of the crusher 105. The transmission component 104 drives the dust collector 102, causing it to rotate and translate, increasing the water mist coverage area, and providing power to the cleaning assembly 300.

[0039] Specifically, the screening component 200 is located on one side of the crushing component 100 and includes a second conveyor belt 201 and a screening machine 202. One end of the second conveyor belt 201 is located at the bottom of the crusher 105 away from the first conveyor belt 101, and the screening machine 202 is located at the bottom of the other end of the second conveyor belt 201.

[0040] The screening component 200 receives the crushed coal blocks via the second conveyor belt 201, and then the screening machine 202 screens the coal blocks according to their size.

[0041] Specifically, the cleaning component 300 is located on top of the crushing component 100 and includes a sump 301, a float 302, a punch ring 303, a horizontal one-way valve 304, and a vertical one-way valve 305. The sump 301 is located at the bottom of the dust collector 102, the float 302 is located on one side of the sump 301, the punch ring 303 is located at the bottom of the sump 301, the horizontal one-way valve 304 is located on one side of the dust collector 102, and the vertical one-way valve 305 is evenly arranged around the inside of the punch ring 303.

[0042] The cleaning component 300 works in conjunction with the dust removal component 102 to add a self-cleaning function to the dust removal component 102, preventing the dust removal component 102 from becoming clogged with dust after prolonged use, thus preventing dust from being unable to be cleaned and polluting the environment.

[0043] In use, the crushing component 100 is used to crush large pieces of coal and remove dust, the screening component 200 screens the coal pieces according to size, and the cleaning component 300 works with the dust removal component 102 to add the function of cleaning the dust removal component 102 itself, so as to avoid the dust removal component 102 being blocked by dust when it is used for too long, which would cause the dust to be unable to be cleaned and pollute the environment.

[0044] Example 2

[0045] Reference Figures 1-7 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0046] Specifically, the dust collector 102 is equipped with a support plate 102a, a water tank 102b, a water pipe 102c, a water pipe head 102d, and a fourth sealing ring 102e; the support plate 102a is located on both sides of the top of the crusher 105; the water tank 102b is located on top of the support plate 102a; the water pipe 102c is located at the bottom of the water tank 102b; the water pipe head 102d is located at the bottom of the water pipe 102c; and the fourth sealing ring 102e is fitted onto the bottom of the water pipe head 102d.

[0047] The top side of the water pipe head 102d is provided with a side transverse hole H6, and the transverse one-way valve 304 is matched with the side transverse hole H6.

[0048] Support plate 102a supports water tank 102b;

[0049] Water from water tank 102b is sprayed out from water pipe head 102d through water pipe 102c, covering the dust.

[0050] When the nozzle 104e rises and falls, it will cause the accumulator 301 to rise and fall. When the accumulator 301 is higher, the side horizontal hole H6 will detach from the inner wall of the central hole H1. At the same time, the bottom of the water pipe head 102d will block the nozzle 104e. The water flow can only enter the accumulator 301 by opening the horizontal one-way valve 304 through the side horizontal hole H6.

[0051] Specifically, the dust removal component 103 is provided with a support block 103a, a screw 103b, a screw block 103c, and a cleaning brush 103d; the support block 103a is located on both sides of the top of the crusher 105; the screw 103b is rotatably connected between the two support blocks 103a; the screw block 103c is sleeved on the outside of the screw 103b; and the cleaning brush 103d is located at the bottom of the screw block 103c.

[0052] The rotation of screw 103b causes screw block 103c to move horizontally, thereby driving cleaning brush 103d to clean crusher 105.

[0053] Specifically, the transmission component 104 is equipped with a motor 104i, a worm 104a, and a worm wheel 104b; the motor 104i is located on the side of the crusher 105; the worm 104a is located on top of the motor 104i; the worm wheel 104b is located on the side of the worm 104a, and the worm 104a and the worm wheel 104b cooperate with each other.

[0054] The motor 104i of the transmission component 104 provides power to the dust removal component 102, the dust sweeping component 103, and the cleaning component 300.

[0055] The worm gear 104a drives the transmission component 104;

[0056] The worm gear 104b drives the dust-sweeping component 103.

[0057] Specifically, the transmission component 104 is also provided with an insert block 104c, an insert plate 104d, a nozzle 104e, and a third sealing ring 104k; the insert block 104c is fixed to the top of the worm gear 104a; the insert plate 104d is disposed on the top of the insert block 104c; the nozzle 104e is disposed on the top of the insert plate 104d; and the third sealing ring 104k is disposed on the top of the nozzle 104e.

[0058] The bottom of the insertion plate 104d is provided with a square hole H4 and the side is provided with an annular groove K2. The square hole H4 and the insertion block 104c are matched.

[0059] When the worm gear 104a rotates, the top of the worm gear 104a drives the insert block 104c, insert plate 104d and nozzle 104e to rotate. The rotation of the nozzle 104e increases the water mist coverage area.

[0060] The bottom of the punch ring 303 and the top of the nozzle 104e are fixedly connected.

[0061] Specifically, the transmission component 104 is also provided with a disc 104f, a connecting rod 104j, and a fork 104h; the disc 104f is located on one side of the worm gear 104b; one end of the connecting rod 104j is rotatably connected to the edge of the disc 104f, and the other end is rotatably connected to the middle of the fork 104h; one end of the fork 104h is rotatably connected to the support plate 102a, and the other end of the fork 104h clamps the insert plate 104d.

[0062] When the worm 104a rotates, the side of the worm 104a drives the worm wheel 104b to rotate, which indirectly drives one end of the connecting rod 104j to rotate, causing the fork 104h to reciprocate up and down.

[0063] Specifically, the transmission component 104 is also provided with a clamping block 104g, which includes a semi-column 104g-1, a clamping tube 104g-2, and a clamping spring 104g-3; the clamping tube 104g-2 is rotatably fitted to the inner wall of one end of the fork 104h; one end of the clamping spring 104g-3 is fixedly connected to the fork 104h, and the other end is fixedly connected to the clamping block 104g; the end of the clamping block 104g away from the clamping spring 104g-3 is fitted with the annular groove K2 of the insert plate 104d.

[0064] The fork lever 104h reciprocates and lifts, which in turn drives the insert plate 104d to reciprocate and lift. Due to the cooperation between the square hole H4 and the insert plate 104c, the nozzle 104e can also be raised and lowered, further increasing the water mist coverage area.

[0065] Specifically, the accumulator 301 is provided with a central hole H1, a side vertical hole H2 and a first sealing ring 301a; the central hole H1 is located in the middle of the top of the accumulator 301 and is matched with the water pipe head 102d; the side vertical hole H2 is located on one side of the central hole H1; the first sealing ring 301a is located on the top of the inner wall of the central hole H1.

[0066] During the raising and lowering of the nozzle 104e, the accumulator 301 collects the water flowing out from the side of the water pipe head 102d.

[0067] Specifically, the float 302 is provided with a float block 302a, a float 302b, and a second sealing ring 302c; the float block 302a is located on top of the float 302b; the float 302b cooperates with the side vertical hole H2; the second sealing ring 302c is located on top of the float block 302a.

[0068] The side of the float 302b is evenly surrounded by air grooves K1.

[0069] When the buoy 302 is filling the tank 301 with water, it vents through the air groove K1 to prevent the tank 301 from being sealed and unable to fill with water. At the same time, when the water level inside the tank 301 rises, the water will push up the float 302a until the tank 301 is filled with enough water. Then the second sealing ring 302c is surrounded by the side vertical hole H2, and the air groove K1 is no longer connected to the inside of the tank 301.

[0070] Specifically, the punch ring 303 and the accumulator 301 are threaded together at the bottom. The punch ring 303 is evenly surrounded by side vertical holes H3, and the vertical check valve 305 is matched with the side vertical holes H3.

[0071] The top side of the nozzle 104e is evenly surrounded by mist holes H5.

[0072] The H5 mist nozzle has a spray head inside, which turns the water flow into a mist.

[0073] In the first half of the water storage phase of the reservoir 301, the air trough K1 connects to the inside of the reservoir 301, and the vertical one-way valve 305 is only subject to the gravity of the water and is not open. In the second half of the water storage phase of the reservoir 301, the second sealing ring 302c isolates the air trough K1 from the inside of the reservoir 301. At this time, during the rising phase of the nozzle 104e, the water in the reservoir 301 is compressed and cannot return to the water pipe head 102d through the horizontal one-way valve 304. Instead, it can only be flushed out from the position of the vertical one-way valve 305 and flushed to the mist hole H5 to clean the mist hole H5 and prevent the mist hole H5 from being blocked by dust.

[0074] During use, the transmission component 104 repeatedly lifts the nozzle 104e, the flushing ring 303, and the accumulator 301. During this time, the bottom of the water pipe head 102d repeatedly passes over the mist hole H5, and the side horizontal hole H6 repeatedly detaches from the inner wall of the central hole H1. This causes the space formed by the accumulator 301, the flushing ring 303, the water pipe head 102d, and the float 302 to be slowly filled with water. The original gas is pushed out from the air tank K1 until the float 302 blocks the side vertical hole H2. The water pressure then opens the vertical one-way valve 305, thereby cleaning the mist hole H5 and preventing it from being blocked.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A coal crushing device for open-pit coal mines, characterized in that: include, The crushing assembly (100) includes a crusher (105), a first conveyor belt (101), a dust collector (102), a dust sweeper (103), and a transmission component (104). The first conveyor belt (101) is located at one end of the crusher (105), the dust sweeper (103) is located at the top of the crusher (105), the dust collector (102) is located on both sides of the dust sweeper (103), and the transmission component (104) is located at the bottom of the dust collector (102). A screening assembly (200), disposed on one side of the crushing assembly (100), includes a second conveyor belt (201) and a screening machine (202). One end of the second conveyor belt (201) is disposed at the bottom of the crusher (105) away from the first conveyor belt (101), and the screening machine (202) is disposed at the bottom of the other end of the second conveyor belt (201); and, A cleaning component (300) is disposed on top of the crushing component (100) and includes a sump (301), a float (302), a punch ring (303), a horizontal one-way valve (304), and a vertical one-way valve (305). The sump (301) is disposed at the bottom of the dust collector (102), the float (302) is disposed on one side of the sump (301), the punch ring (303) is disposed at the bottom of the sump (301), the horizontal one-way valve (304) is disposed on one side of the dust collector (102), and the vertical one-way valve (305) is evenly arranged around the inside of the punch ring (303). The dust removal component (102) is provided with a support plate (102a), a water tank (102b), a water pipe (102c), a water pipe head (102d), and a fourth sealing ring (102e); the support plate (102a) is located on both sides of the top of the crusher (105); the water tank (102b) is located on top of the support plate (102a); the water pipe (102c) is located at the bottom of the water tank (102b); the water pipe head (102d) is located at the bottom of the water pipe (102c); and the fourth sealing ring (102e) is fitted onto the bottom of the water pipe head (102d). The top side of the water pipe head (102d) is provided with a side transverse hole (H6), and the transverse one-way valve (304) cooperates with the side transverse hole (H6); The transmission component (104) is equipped with a motor (104i), a worm (104a), and a worm wheel (104b); the motor (104i) is located on the side of the crusher (105); the worm (104a) is located on top of the motor (104i); the worm wheel (104b) is located on the side of the worm (104a), and the worm (104a) and the worm wheel (104b) cooperate with each other; The transmission component (104) is also provided with a plug (104c), a plug plate (104d), a nozzle (104e), and a third sealing ring (104k); the plug (104c) is fixed to the top of the worm gear (104a); the plug plate (104d) is disposed on the top of the plug (104c); the nozzle (104e) is disposed on the top of the plug plate (104d); and the third sealing ring (104k) is disposed on the top of the nozzle (104e). The insertion plate (104d) has a square hole (H4) at the bottom and an annular groove (K2) on the side. The square hole (H4) and the insertion block (104c) are engaged. The transmission component (104) is also provided with a disc (104f), a connecting rod (104j), and a fork (104h); the disc (104f) is located on one side of the worm gear (104b); one end of the connecting rod (104j) is rotatably connected to the edge of the disc (104f), and the other end is rotatably connected to the middle of the fork (104h); one end of the fork (104h) is rotatably connected to the support plate (102a), and the other end of the fork (104h) clamps the insert plate (104d).

2. The open-pit coal crushing equipment as described in claim 1, characterized in that: The dust removal component (103) is provided with a support block (103a), a screw (103b), a screw block (103c), and a cleaning brush (103d); the support block (103a) is located on both sides of the top of the crusher (105); the screw (103b) is rotatably connected between the two support blocks (103a); the screw block (103c) is sleeved on the outside of the screw (103b); and the cleaning brush (103d) is located at the bottom of the screw block (103c).

3. The open-pit coal crushing equipment as described in claim 1, characterized in that: The transmission component (104) is also provided with a clamping block (104g), which includes a half column (104g-1), a clamping tube (104g-2), and a clamping spring (104g-3). The clamping tube (104g-2) is rotatably fitted to the inner wall of one end of the fork (104h). One end of the clamping spring (104g-3) is fixedly connected to the fork (104h), and the other end is fixedly connected to the clamping block (104g). The end of the clamping block (104g) away from the clamping spring (104g-3) is fitted with the annular groove (K2) of the insert plate (104d).

4. The open-pit coal crushing equipment as described in claim 3, characterized in that: The storage tank (301) is provided with a central hole (H1), a side vertical hole (H2) and a first sealing ring (301a); the central hole (H1) is located in the middle of the top of the storage tank (301), and the central hole (H1) cooperates with the water pipe head (102d); the side vertical hole (H2) is located on one side of the central hole (H1); the first sealing ring (301a) is located on the top of the inner wall of the central hole (H1).

5. The open-pit coal crushing equipment as described in claim 4, characterized in that: The float (302) is provided with a float block (302a), a float (302b), and a second sealing ring (302c); the float block (302a) is disposed on the top of the float (302b); the float (302b) and the side vertical hole (H2) are engaged; the second sealing ring (302c) is disposed on the top of the float block (302a); The side of the float (302b) is uniformly surrounded by air grooves (K1).

6. The open-pit coal crushing equipment as described in claim 4 or 5, characterized in that: The punch ring (303) and the storage shell (301) are threadedly connected at the bottom. The punch ring (303) is uniformly surrounded by side vertical holes (H3). The vertical one-way valve (305) is engaged with the side vertical holes (H3). The top side of the nozzle (104e) is uniformly surrounded by mist holes (H5).

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