Tail of scraper conveyor with coal-water mixture discharge function

Abstract

The present application relates to the technical field of coal mine machinery equipment, and more particularly to a scraper conveyor tail with coal-water mixture discharge function, which comprises a tail assembly, a blockage prevention assembly and a driving assembly. When the water outlet on the tail assembly is blocked by a block, the blockage prevention assembly moves up and down under the drive of the driving assembly to clean the block in the water outlet, and the blockage on the blockage prevention assembly is also cleaned in this way. The present application can clean the coal-water mixture in the tail of the scraper conveyor in time, and ensure the smooth operation of the scraper conveyor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mine mechanical equipment, and particularly relates to a scraper conveyor tail with coal-water mixture discharging function. BACKGROUND

[0002] The scraper conveyor is the main equipment for conveying coal and materials. In the process of coal mining production, water gushing in the goaf may occur. Due to the ups and downs of the coal mining face, water accumulation at low-lying points may often occur. When the coal mining face is flooded, part of the accumulated water may flow into the bottom groove of the conveyor. With the movement of the scraper chain, the accumulated water may be brought to the tail of the conveyor and accumulated there. In order to clean the accumulated water, the closed tail cover plate needs to be removed, and the accumulated water is discharged from the internal access opening at the tail. However, in order to ensure safety during daily operation of the machine, the internal access opening cannot be opened, so that the accumulated water cannot be discharged and is accumulated at the tail of the machine during operation of the machine. Most of the water may return to the upper groove of the conveyor along with the scraper chain, so that the coal contains a large amount of water. Subsequently, the coal containing a large amount of water may slip and accumulate on the inclined belt conveyor, and may block the coal discharge port of the buffer coal bunker due to increased viscosity during the coal discharging and screening process, thereby affecting the screening efficiency of the screening system. In addition, during the conveying process, coal blocks may fall from the upper groove of the scraper conveyor to the lower groove and then be brought to the tail of the conveyor. These are called returned coal. Some large coal blocks in the returned coal can be transported back to the upper groove for continuous transportation, and some small coal blocks are always accumulated at the tail of the conveyor. Part of the coal blocks may form coal slurry after meeting water. Too much coal slurry and coal blocks accumulated at the tail of the machine for a long time may affect the operation of the machine, and the tail cover plate needs to be frequently removed and cleaned by the staff.

[0003] To solve the above technical problems, the patent application No. CN202223080563.5 discloses a tail cover plate assembly of a scraper conveyor, which is characterized in that the tail cover plate assembly comprises a main cover plate and an adjusting plate. A plurality of drainage openings are arranged on the surface of the main cover plate at equal intervals in the horizontal direction. A horizontal sliding groove is fixed on the outer surface of the main cover plate in the upper and lower directions of the drainage openings. The grooves of the two sliding grooves are opposite to each other. The adjusting plate is installed in the two sliding grooves and is parallel to the main cover plate. The adjusting plate is the same length as the main cover plate. A plurality of adjusting openings are arranged on the adjusting plate, which are the same size and position as the drainage openings on the main cover plate. The adjusting plate is provided with a shielding part between the two adjusting openings. The area of the drainage opening shielded by the shielding part can be adjusted by sliding the adjusting plate. In this way, the size of the coal blocks discharged with the accumulated water can be controlled. The utility model has the advantages of simple structure, convenient use, low manufacturing cost, and can help to discharge accumulated water and coal slurry, and is also conducive to observing the operation of the chain wheel inside the tail in daily life, improving production efficiency, and ensuring production safety.

[0004] However, the prior art has the following technical problems: the above scheme still has some coal or stone blocks that cannot be discharged with the accumulated water when the accumulated water is discharged. These blocky objects will accumulate at the drain outlet, causing the drain outlet to be blocked, and the coal-water mixture cannot be smoothly discharged, ultimately causing the scraper conveyor to run poorly, be stuck, and jump chains and other problems. SUMMARY

[0005] Therefore, it is necessary to provide a scraper conveyor tail with coal-water mixture discharge function capable of cleaning the blockage of the drain outlet.

[0006] A scraper conveyor tail with coal-water mixture discharge function, characterized in that it comprises a tail assembly, a anti-blocking assembly and a driving assembly, the driving assembly is installed on the tail body; the tail assembly comprises a tail body and a limiting slot, a plurality of drainage grooves are formed on the tail body, the limiting slots are respectively arranged on the outer sides of the two side drainage grooves of the tail body, and the openings of the limiting slots face inward; the anti-blocking assembly comprises a tail cover and a plurality of special-shaped hammer heads, the tail cover is clamped in the limiting slot, and the tail cover is fixed with the driving assembly in a manner capable of moving along the limiting direction of the limiting slot, the tail cover is provided with a drainage outlet at a position corresponding to each drainage groove, and each drainage outlet is provided with a special-shaped hammer head, one end of the special-shaped hammer head is fixed in the drainage outlet, and the other end extends into the drainage groove.

[0007] Preferably, the driving assembly comprises an oil cylinder, a first connecting piece and a pair of fixing pieces located on both sides of the oil cylinder, the bottom ends of the fixing pieces are fixedly connected with the top end of the tail body, one end of the first connecting piece is fixedly connected with the telescopic end of the oil cylinder, and the other end is fixedly connected with the anti-blocking assembly.

[0008] Preferably, the tail cover is provided with a second connecting piece, the second connecting piece is located at the top of the tail cover, and the second connecting piece is fixedly connected with the first connecting piece.

[0009] Preferably, the inner wall of the drainage groove is a slope, and the inner wall of the drainage groove gradually widens outward from one end close to the scraper conveyor.

[0010] Preferably, the bottom end of the tail cover is provided with a V-shaped sharp head at a position corresponding to each drainage outlet, and the top end of the V-shaped sharp head is arc-shaped.

[0011] Preferably, the tail body is further provided with a coal-water mixture collecting box, and the size of the coal-water mixture collecting box can cover the end face of the tail cover; a blocky object collecting cavity, a filter screen and a sewage collecting cavity are sequentially arranged in the coal-water mixture collecting box from one end close to the tail body to the outside, the bottom surface of the sewage collecting cavity is a slope, and the end close to the filter screen is higher than the end away from the filter screen.

[0012] Preferably, the end of the special-shaped hammer head extending into the drainage groove is provided with a pointed end facing a pyramid shape in the scraper conveyor, and the pointed end part is arc-shaped.

[0013] Preferably, the end of the special-shaped hammer head extending into the drainage groove is provided with a pointed end facing a pyramid shape in the scraper conveyor, and the pointed end part is arc-shaped.

[0014] Preferably, the end of the special-shaped hammer head extending into the drainage groove is provided with a pointed end facing a pyramid shape in the scraper conveyor, and the pointed end part is arc-shaped.

[0015] The tail assembly, the anti-blocking assembly and the driving assembly are arranged in the tail of the scraper conveyor with the coal-water mixture discharging function. When the drainage groove is blocked by the blocky material, the tail cover is driven to move up and down by the driving assembly, and the special-shaped hammer head in the drainage groove is driven to move up and down, so as to clean the blocky material in the drainage groove. The application can solve the problem that the drainage groove of the tail of the scraper conveyor is blocked by the blocky material, and can timely discharge the coal-water mixture, so as to ensure the smooth operation of the scraper conveyor. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the oblique perspective view of the tail of the scraper conveyor with the coal-water mixture discharging function of the application.

[0017] Figure 2 is the oblique perspective view of the tail of the scraper conveyor with the coal-water mixture discharging function of the application when the tail is installed on the scraper conveyor.

[0018] Figure 3 is the side view of the tail of the scraper conveyor with the coal-water mixture discharging function of the application.

[0019] Figure 4 is the front view of the tail of the scraper conveyor with the coal-water mixture discharging function of the application.

[0020] Figure 5 is the oblique perspective view of the tail of the scraper conveyor with the coal-water mixture discharging function of the application when the coal-water mixture collecting box is not installed.

[0021] Figure 6 is the oblique perspective view of the tail of the scraper conveyor with the coal-water mixture discharging function of the application when the coal-water mixture collecting box is not installed and the tail is installed on the scraper conveyor.

[0022] Figure 7 is the front view of the tail of the scraper conveyor with the coal-water mixture discharging function of the application when the coal-water mixture collecting box is not installed.

[0023] Figure 8 is the bottom view of the tail of the scraper conveyor with coal-water mixture discharging function of the present application without installation of the coal-water mixture collecting box.

[0024] Figure 9 is the front view of the tail assembly of the present application.

[0025] Figure 10 is the sectional view of the tail assembly of the present application.

[0026] Figure 11 is the front view of the anti-blocking assembly of the present application.

[0027] Figure 12 is the sectional view of the coal-water mixture collecting box of the present application.

[0028] Figure 13 is the oblique perspective view of the first embodiment of the special-shaped hammer head of the present application.

[0029] Figure 14 is the oblique perspective view of the second embodiment of the special-shaped hammer head of the present application.

[0030] Figure 15 is the oblique perspective view of the third embodiment of the special-shaped hammer head of the present application.

[0031] In the figure: the tail 10 of the scraper conveyor with coal-water mixture discharging function, the tail assembly 20, the tail body 21, the limiting clamping groove 22, the drainage groove 23, the anti-blocking assembly 30, the tail cover 31, the special-shaped hammer head 32, the drainage port 33, the second connecting piece 34, the V-shaped sharp head 35, the driving assembly 40, the oil cylinder 41, the first connecting piece 42, the fixing piece 43, the coal-water mixture collecting box 50, the block-shaped object collecting cavity 51, the filter screen 52, the sewage collecting cavity 53. Embodiment

[0032] The technical solutions and technical effects of the embodiments of the present application are further described in detail below in combination with the drawings of the present application.

[0033] The tail of the scraper conveyor with the coal-water mixture discharging function 10, characterized in that, comprising tail assembly 20, anti-blocking assembly 30 and driving assembly 40, the driving assembly 40 is installed on the tail body 21; the tail assembly 20 comprises the tail body 21 and the limiting slot 22, the tail body 21 is provided with a plurality of drainage grooves 23, the limiting slot 22 is respectively arranged on the outer side of the two side drainage grooves 23 of the tail body 21, and the opening of the limiting slot 22 faces inward; the anti-blocking assembly 30 comprises a tail cover 31 and a plurality of special-shaped hammer heads 32, the tail cover 31 is clamped in the limiting slot 22, and is fixed with the driving assembly 40 in a manner capable of moving along the limiting direction of the limiting slot 22, so as to prevent the tail cover 31 from being easily removed, the tail cover 31 is provided with a drainage port 33 at a position corresponding to each drainage groove 23, so as to ensure that the coal-water mixture can be discharged from the tail, and each drainage port 33 is provided with a special-shaped hammer head 32, one end of the special-shaped hammer head 32 is fixed in the drainage port 33, and the other end extends into the drainage groove 23.

[0034] Further, the driving assembly 40 comprises an oil cylinder 41, a first connecting piece 42 and a pair of fixing pieces 43 located on both sides of the oil cylinder 41, the bottom end of the fixing piece 43 is fixedly connected with the top end of the tail body 21, so as to fix the oil cylinder 41 on the tail body 21 through the fixing piece 43, one end of the first connecting piece 42 is fixedly connected with the telescopic end of the oil cylinder 41, and the other end is fixedly connected with the anti-blocking assembly 30, so as to drive the first connecting piece 42 to move up and down through the oil cylinder 41, and indirectly drive the anti-blocking assembly 30 to move up and down.

[0035] Further, the tail cover 31 is provided with a second connecting piece 34, the second connecting piece 34 is located at the top of the tail cover 31, and the second connecting piece 34 is fixedly connected with the first connecting piece 42, so as to indirectly drive the tail cover 31 to move up and down through the first connecting piece 42.

[0036] Further, the inner wall of the drainage groove 23 is inclined, and the inner wall of the drainage groove 23 gradually widens outward from one end close to the scraper conveyor, so as to accelerate the discharging speed of the coal-water mixture and reduce the probability of blocking the drainage groove 23.

[0037] Further, the bottom end of the tail cover 31 is provided with a V-shaped sharp head 35 at a position corresponding to each drainage port 33, and the top end of the V-shaped sharp head 35 is arc-shaped, so as to reduce the loss of the V-shaped sharp head 35.

[0038] In the embodiment, the tail body 21 is further provided with a coal-water mixture collecting tank 50, which is capable of covering the end surface of the tail cover 31 and collecting all the discharged coal-water mixture. The coal-water mixture collecting tank 50 is sequentially provided with a lump collecting cavity 51, a filter screen 52 and a sewage collecting cavity 53 from one end close to the tail body 21. The bottom surface of the sewage collecting cavity 53 is inclined, and the end close to the filter screen 52 is higher than the end far from the filter screen 52, so as to facilitate the flow of sewage from the lump collecting cavity 51 to the sewage collecting cavity 53 and prevent backflow.

[0039] In an embodiment, the bottom surface of the lump collecting cavity 51 is further provided with a pressure valve, which prevents the lump from being accumulated too much and blocking the filter screen 52, so that the coal-water mixture cannot be discharged.

[0040] In an embodiment, the bottom surface of the sewage collecting cavity 53 is further provided with a drain pipe, which timely discharges the sewage. The water outlet end of the drain pipe is further provided with a water pump, which accelerates the discharge rate of the sewage.

[0041] In the first embodiment of the special-shaped hammer head 32, the end of the special-shaped hammer head extending into the drain groove 23 is provided with a pointed end, which is in the shape of a pyramid and faces the inside of the scraper conveyor, so as to lift the lump blocking the drain groove 23. The pointed end is in the shape of a circular arc, so as to reduce the wear of the special-shaped hammer head 32.

[0042] In the second embodiment of the special-shaped hammer head 32, the end of the special-shaped hammer head 32 extending into the drain groove 23 is provided with a pointed end, which is in the shape of a pyramid and faces the top surface of the drain groove 23, so as to crush the lump blocking the drain groove 23. The pointed end is in the shape of a circular arc, so as to reduce the wear of the special-shaped hammer head 32.

[0043] In the third embodiment of the special-shaped hammer head 32, the end of the special-shaped hammer head 32 extending into the drain groove 23 is fixedly provided with a pair of inclined scrapers on one side of the end facing the top end of the drain groove 23. The distance between the free ends of the two scrapers is greater than the distance between the fixed ends. The free end of each scraper is in close contact with the inner wall of the drain groove 23, so as to clean the coal-water mixture adhering to the inner wall of the drain groove 23. In the embodiment, the two scrapers are symmetrically arranged on the end surface of the special-shaped hammer head 32, so as to improve the stability of the scrapers and reduce the processing difficulty.

[0044] When in use, the coal-water mixture in the tail is discharged through the drain groove 23 and the drain port 33. When the drain groove 23 is blocked, the control device is manually started to drive the oil cylinder 41, which drives the tail cover 31 to move up and down. During the up-and-down movement of the tail cover 31, the irregular hammer head 32 in the drain port 33 can knock the blockage in the drain groove 23, and the knocked blockage will fall out of the drain port 33 or into the scraper conveyor. The blockage in the scraper conveyor will be carried away by the conveyor belt, so that the blockage is cleaned, and the coal-water mixture can be smoothly discharged through the drain port 33. At the same time, the vibration of the drain port 33 during the up-and-down movement of the tail cover 31 can prevent the blockage from being stuck in the drain port 33. The coal-water mixture and the blockage flowing out of the drain port 33 will fall into the coal-water mixture collecting box 50, and after being filtered by the filter screen 52, the blockage will be left in the blockage collecting cavity 51, and the sewage will flow into the sewage collecting cavity 53 along the inclined bottom surface of the sewage collecting box. When the blockage in the blockage collecting cavity 51 reaches a certain amount, the pressure valve will be started to open the bottom surface of the blockage collecting cavity 51 to discharge the blockage in the blockage collecting cavity 51, and the sewage will flow from the drain pipe on the sewage collecting cavity 53 into the sewage treatment device.

[0045] The above merely describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tail of a scraper conveyor having a coal-water mixture discharge function, characterized by, The application relates to a tail assembly, a blockage preventing assembly and a driving assembly, wherein the driving assembly is installed on a tail body; the tail assembly comprises the tail body and limiting clamping grooves, a plurality of drainage grooves are formed on the tail body, the limiting clamping grooves are respectively arranged at the outer sides of the two side drainage grooves on the tail body, and the openings of the limiting clamping grooves face inwards; the blockage preventing assembly comprises a tail cover and a plurality of special-shaped hammer heads; the tail cover is clamped in the limiting clamping grooves and is fixed with the driving assembly in a manner capable of moving along the limiting direction of the limiting clamping grooves; a drainage opening is arranged at the position corresponding to each drainage groove on the tail cover, and a special-shaped hammer head is arranged in each drainage opening; one end of the special-shaped hammer head is fixed in the drainage opening, and the other end extends into the drainage groove; a V-shaped sharp head is arranged at the position corresponding to each drainage opening on the bottom end of the tail cover, and the top end of the V-shaped sharp head is arc-shaped.

2. The tail of the scraper conveyor with the coal-water mixture discharge function according to claim 1, characterized in that, The driving assembly comprises an oil cylinder, a first connecting piece and a pair of fixing pieces arranged on the two sides of the oil cylinder; the bottom ends of the fixing pieces are fixedly connected with the top end of the tail body; one end of the first connecting piece is fixedly connected with the telescopic end of the oil cylinder, and the other end is fixedly connected with the blockage preventing assembly.

3. The tail of the scraper conveyor with the coal-water mixture discharge function according to claim 2, characterized in that, A second connecting piece is arranged on the tail cover; the second connecting piece is located on the top of the tail cover, and the second connecting piece is fixedly connected with the first connecting piece.

4. The tail of the scraper conveyor with the coal-water mixture discharge function according to claim 1, characterized in that, The inner wall of the drainage groove is inclined, and the inner wall of the drainage groove gradually widens from the end close to the scraper conveyor to the outside.

5. The tail of the scraper conveyor with the coal-water mixture discharge function according to claim 1, characterized in that, A coal-water mixture collecting box is further arranged on the tail body, and the size of the coal-water mixture collecting box can cover the end surface of the tail cover; a block-shaped object collecting cavity, a filter screen and a sewage collecting cavity are sequentially arranged in the coal-water mixture collecting box from the end close to the tail body to the outside; the bottom surface of the sewage collecting cavity is inclined, and the end close to the filter screen is higher than the end far from the filter screen.

6. The tail of the scraper conveyor having the coal-water mixture discharge function according to claim 1, wherein, The end of the special-shaped hammer head extending into the drainage groove is arranged in a pyramid shape with the sharp head facing the inside of the scraper conveyor, and the sharp head part is arc-shaped.

7. The tail of the scraper conveyor having the coal-water mixture discharge function according to claim 1, wherein, The end of the special-shaped hammer head extending into the drainage groove is arranged in a pyramid shape with the sharp head facing the top surface of the drainage groove, and the sharp head part is arc-shaped.

8. The tail of the scraper conveyor with the coal-water mixture discharge function according to claim 1, characterized in that, A pair of inclined scrapers are fixed on one side of the end of the special-shaped hammer head extending into the drainage groove and facing the top end of the drainage groove, and the distance between the free ends of the two scrapers is greater than the distance between the fixed ends; the free end of each scraper is tightly attached to the inner wall of the drainage groove.

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