Coal washing equipment for coal mine

Abstract

The invention discloses coal washing equipment for a coal mine, and relates to the technical field of coal washing equipment for the coal mine, the coal washing equipment for the coal mine comprises a box body, a supporting seat is fixed to the side wall of the box body, a screen is fixed to the inner wall of the supporting seat, a driving motor is fixed to the left side of the box body, and a rotating rod is fixed to the output end of the driving motor; and two groups of reciprocating thread grooves are formed in the outer wall of the rotating rod. According to the coal washing equipment for the coal mine, by arranging an auxiliary device, when a driving motor is started to enable a rotating rod to rotate, a disc can be driven to get close to a box body, through a guide column and a push plate, a sleeve can drive an extrusion block to move in an arc-shaped sliding groove formed in the outer wall of a rotating shaft, and therefore the rotating shaft can be driven to rotate anticlockwise; and thus, the turning plate is driven to rotate, the turning plate turns over coal briquettes floating on the top in the box body, the floating coal briquettes make more uniform contact with cleaning water, and the cleaning effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of coal washing, in particular to coal washing equipment for coal mines. Background Art

[0002] Coal washing is an indispensable process in coal deep processing. Coal mined directly from the mine is called raw coal. Raw coal is mixed with many impurities during the mining process, and the quality of coal is also different. Coal with low internal ash content and coal with high internal ash content are mixed together. Coal washing is an industrial process to remove impurities from raw coal or to classify high-quality coal and low-quality coal. Coal washing machine is an indispensable mechanical equipment for coal processing.

[0003] A coal washer with patent publication number CN202052615U includes a coal washing cylinder, a stirring shaft is arranged in the coal washing cylinder, a bearing is arranged at the supporting part of the stirring shaft located at the coal washing cylinder, a pulley is arranged at one end of the stirring shaft extending out of the coal washing cylinder, and a plurality of stirring teeth are arranged on the stirring shaft. The stirring can prevent the raw coal from agglomerating, improve the coal washing accuracy and efficiency, and also prevent the waste of clean coal.

[0004] When the above-mentioned coal washing equipment is performing coal washing operations, some coal blocks are relatively light in weight, which will cause the coal blocks to float on the top of the washing water. The floating coal blocks may not be able to fully contact the washing water, resulting in the inability to effectively remove the coal ash and impurities on the surface of the coal blocks, resulting in poor cleaning effects and affecting the quality of product processing. In view of this, a coal washing equipment for coal mines is proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a coal washing device for coal mines, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a coal washing equipment for coal mines, comprising a box body, a support seat is fixed on the side wall of the box body, a screen is fixed on the inner wall of the support seat, a driving motor is fixed on the left side of the box body, a rotating rod is fixed on the output end of the driving motor, two sets of reciprocating thread grooves are opened on the outer wall of the rotating rod, the rotating rod passes through the box body and is rotatably connected at the penetration point, a stirring block is fixed on the outer wall of the rotating rod, when the driving motor is started, the rotating rod can be driven to rotate, so that the rotating rod drives the stirring block to rotate, a feed cover is fixed on the top of the box body, a water baffle is slidably installed on the inner wall of the bottom of the box body, the outer wall of the rotating rod is provided with an auxiliary device for facilitating the cleaning of materials, a turning device for turning the materials is provided on the inner side of the stirring block, and a shielding device for shielding the feed cover is provided on the left side of the box body. The cam is fixedly mounted on the side wall of the driving mechanism, and the cam is fixedly mounted on the side wall of the driving mechanism, and the cam is fixedly mounted on the side wall of the driving mechanism.

[0007] According to the above technical solution, the rotating shaft passes through the stirring block and is rotatably connected at the penetration point. An arc groove is provided on the outer wall of the rotating shaft. The extrusion block is fixed to the inner wall of the sleeve. The outer wall of the extrusion block fits the inner wall of the arc groove. The flip plate is fixed to the outer wall of the rotating shaft. When the sleeve moves to the left, the extrusion block can move in the arc groove, so that the extrusion block can extrusion the rotating shaft to rotate counterclockwise. When the rotating shaft rotates, the flip plate can be driven to rotate.

[0008] According to the above technical solution, the threaded sleeve is threadedly connected to the outer wall of the reciprocating thread opened on the outer wall of the rotating rod, the pushing plate is fixed to the side wall of the threaded sleeve, and the pushing plate is slidably installed on the inner wall of the box body. When the rotating rod rotates, the threaded sleeve can move back and forth on the reciprocating thread groove opened on the left side of the outer wall of the rotating rod, thereby driving the pushing plate to move back and forth.

[0009] According to the above technical solution, the flipping device includes a rotating disk, a hinged rod, a flipping block, an L-shaped connecting block, a movable rod, a connecting frame and a crushing knife; the rotating disk is fixed at the end point of the rotating shaft, and the flipping block is slidably installed on the inner wall of the stirring block. One end of the hinged rod is hinged to the side wall of the rotating disk, and the other end of the hinged rod is hinged to the flipping block. When the rotating shaft rotates counterclockwise, the rotating disk can be driven to rotate counterclockwise, which will cause the rotating disk to squeeze the hinged rod, so that the hinged rod can squeeze the flipping block to move closer to the rotating rod.

[0010] According to the above technical solution, the L-shaped connecting block is slidably installed on the inner wall of the flipping block, the connecting frame is fixed on the outer wall of the L-shaped connecting block, the crushing knife is fixed on the upper and lower sides of the connecting frame, one end of the movable rod is hinged at the bottom of the L-shaped connecting block, and the other end of the movable rod is hinged at the outer wall of the rotating rod. When the flipping block moves toward the rotating rod, the flipping block drives the L-shaped connecting rod to approach the rotating rod, so that the movable rod squeezes the L-shaped connecting block and the L-shaped connecting block approaches the driving motor, thereby driving the crushing knife to move in the two groups of stirring blocks to crush larger coal blocks.

[0011] According to the above technical solution, the shielding device includes a transmission plate, a transmission spring, a transmission block, a connecting rod, a T-block, a connecting spring, a limit rod, a baffle and a return spring. The transmission plate is slidably installed on the inner wall of the push plate, one side of the transmission spring is fixed to the side wall of the push plate, and the other side of the transmission spring is fixed to the protrusion of the transmission plate.

[0012] According to the above technical solution, the transmission block is slidably installed on the side wall of the pushing plate, the connecting rod is fixed on the top of the transmission block, the T-block passes through the left side of the feed cover and is slidably connected at the penetration point, one side of the connecting spring is fixed to the inner wall of the feed cover, and the other side of the connecting spring is fixed to the top of the T-block, the top of the connecting rod is slidably connected to the bottom of the T-block, and the limit rod is fixed to the bottom of the T-block. When too many coal blocks are added to the box body, when the box body moves back and forth, the transmission plate will be moved by the extrusion force, so that the inclined surface at the top of the transmission block squeezes the inclined surface at the bottom of the transmission block, thereby driving the transmission block to move upward, so that the T-block drives the limit rod to move out of the limiting hole.

[0013] According to the above technical solution, the baffle plate passes through the side wall of the feed cover and is slidably connected at the penetration point. A limiting hole is opened on the top of the baffle plate. The outer wall of the limiting rod fits with the inner wall of the limiting hole. One side of the reset spring is fixed to the side wall of the feed cover, and the other side of the reset spring is fixed to the protrusion of the side wall of the baffle plate.

[0014] The present invention provides a coal washing device for coal mines. It has the following beneficial effects:

[0015] (1) The present invention sets an auxiliary device. When the driving motor is started and the rotating rod is rotated, the disc can be driven to approach the box body. Through the guide column and the push plate, the sleeve can drive the extrusion block to move in the arc-shaped slide groove provided on the outer wall of the rotating shaft, thereby driving the rotating shaft to rotate counterclockwise, thereby driving the flip plate to rotate, so that the flip plate flips the coal blocks floating on the top of the box body, so that the floating coal blocks are in contact with the cleaning water more evenly, and the cleaning effect is better; and when the guide column drives the push plate to move toward the middle of the box body, the rotating rod will rotate and drive the threaded sleeve and the push plate to move toward the middle of the box body, thereby pushing the coal blocks to be concentrated in the middle of the box body, which can reduce the accumulation of coal blocks at the edge of the box body, avoid cleaning dead corners caused by the accumulation of coal blocks, and ensure that all coal blocks can be fully cleaned.

[0016] (2) The present invention provides a flipping device. When the rotating shaft rotates counterclockwise, it can drive the rotating disk to rotate counterclockwise. Through the cooperation of the hinged rod, the flipping block can move back and forth in the stirring block. Therefore, when the flipping block moves back and forth at the bottom of the inner wall of the box body, the coal blocks at the bottom of the inner wall of the box body can be flipped, thereby increasing the contact area between the coal blocks and the cleaning water, and further improving the cleaning effect; and when the flipping block moves, through the cooperation of the movable rod, the L-shaped connecting block and the connecting frame, the crushing knife can move back and forth in the two groups of stirring blocks, so that the crushing knife can chop larger coal blocks. The chopped coal blocks are more easily impacted by the water flow, which helps to more thoroughly remove impurities on the surface of the coal blocks.

[0017] (3) The present invention provides a shielding device. When too much coal is added to the box, when the push plate moves toward the middle of the box, the transmission plate will come into contact with the accumulated coal, so that the transmission plate will be moved in the flip plate under the extrusion force. Through the cooperation of the transmission block, the connecting rod and the T-block, the limit rod will be moved out of the limit hole, so that the limit on the baffle can be released. Since the reset spring is in a stretched state, the reset spring drives the baffle to shield the inside of the feed cover, thereby stopping the addition of coal into the box and preventing too much coal from being added to the box, which affects the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the local structure of the present invention;

[0022] Figure 5 It is a partial structural schematic diagram of the present invention;

[0023] Figure 6 For the present invention Figure 3 A magnified schematic diagram of the structure of A;

[0024] Figure 7 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0025] Figure 8 It is a partial cross-sectional structural schematic diagram of the present invention;

[0026] Fig. 9 This is a schematic diagram of the structure of the shielding device of the present invention;

[0027] Fig.10 For the present invention Figure 7 Schematic diagram of the enlarged structure of B.

[0028] In the figure: 1. box body; 2. support seat; 3. screen; 4. water baffle; 5. feed cover; 6. drive motor; 7. rotating rod; 8. stirring block; 91. disc; 92. guide column; 93. push plate; 94. sleeve; 95. rotating shaft; 96. extrusion block; 97. flip plate; 98. threaded sleeve; 99. push plate; 910. moving block; 101. rotating disk; 102. hinged rod; 103. flip block; 104. L-shaped connecting block; 105. movable rod; 106. connecting frame; 107. crushing knife; 111. transmission plate; 112. transmission block; 113. T-block; 114. connecting spring; 115. connecting rod; 116. baffle; 117. reset spring; 118. transmission spring; 119. limit rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 10An embodiment of the present invention is: a coal washing equipment for coal mines, comprising a box body 1, a support seat 2 is fixed to the side wall of the box body 1, a screen 3 is fixed to the inner wall of the support seat 2, and the screen 3 is arranged to screen the cleaned coal blocks, a driving motor 6 is fixed to the left side of the box body 1, a rotating rod 7 is fixed to the output end of the driving motor 6, two sets of reciprocating thread grooves are opened on the outer wall of the rotating rod 7, the rotating rod 7 passes through the box body 1, and the penetration is rotatably connected, and a stirring block 8 is fixed to the outer wall of the rotating rod 7, when the driving motor 6 is started, the rotating rod 7 can be driven to rotate, The stirring block 8 is used to stir and clean the box 1. A feed cover 5 is fixed on the top of the box 1. A water baffle 4 is slidably installed on the bottom inner wall of the box 1. A drain pipe is fixed on the right side of the box 1. When cleaning is completed, the sewage in the box 1 can be drained by opening the drain pipe on the right side of the box 1. The coal blocks in the box 1 can be discharged by pulling out the water baffle 4. The outer wall of the rotating rod 7 is provided with an auxiliary device for convenient cleaning of the material; wherein the auxiliary device includes a disc 91, a guide column 92, a moving block 910, a push plate 93, a sleeve 94, and an extrusion block 96, a rotating shaft 95, a flip plate 97, a threaded sleeve 98 and a push plate 99; the disc 91 is threadedly connected to the reciprocating threaded outer wall opened on the right side of the outer wall of the rotating rod 7, the guide column 92 passes through the right side of the box body 1, and is slidably connected at the penetration point, one end of the guide column 92 is fixedly connected to the side wall of the disc 91, and the other end of the guide column 92 is fixedly connected to the side wall of the push plate 93, the push plate 93 is slidably mounted on the inner wall of the box body 1, the moving block 910 is slidably mounted on the outer wall of the rotating rod 7, and a sleeve 94 is fixed on the side of the moving block 910 away from the rotating rod 7, and the right side of the sleeve 94 is connected to the push plate The inner wall of the circular groove opened on the left side of 93 is slidably connected, and the sleeve 94 can make a circular motion in the circular groove starting from the left side of the push plate 93. The rotating shaft 95 passes through the stirring block 8 and is rotatably connected at the penetration point. The outer wall of the rotating shaft 95 is provided with an arc groove. The extrusion block 96 is fixed on the inner wall of the sleeve 94. The outer wall of the extrusion block 96 fits with the inner wall of the arc groove. The flip plate 97 is fixed on the outer wall of the rotating shaft 95. The threaded sleeve 98 is threadedly connected to the outer wall of the reciprocating thread opened on the outer wall of the rotating rod 7. The pushing plate 99 is fixed on the side wall of the threaded sleeve 98, and the pushing plate 99 is slidably installed on the inner wall of the box body 1.

[0031] When the driving motor 6 is started and the rotating rod 7 is rotated, the disc 91 can be driven to approach the box body 1. Through the guide column 92 and the push plate 93, the sleeve 94 can drive the extrusion block 96 to move in the arc groove provided on the outer wall of the rotating shaft 95, so that the rotating shaft 95 can be driven to rotate counterclockwise, thereby driving the flip plate 97 to rotate, so that the flip plate 97 flips the coal blocks floating on the top of the box body 1, so that the floating coal blocks are in contact with the cleaning water more evenly, so that the cleaning effect is better;

[0032] When the guide column 92 drives the push plate 93 to move toward the middle of the box body 1, the rotating rod 7 will rotate to drive the threaded sleeve 98 and the push plate 99 to move toward the middle of the box body 1, thereby pushing the coal blocks to be concentrated in the middle of the box body 1, reducing the accumulation of coal blocks at the edge of the box body 1, avoiding cleaning dead corners caused by coal block accumulation, and ensuring that all coal blocks can be fully cleaned.

[0033] During operation of this embodiment: when it is necessary to clean the coal blocks, firstly add the cleaning water into the box body 1 through the feed cover 5. When the cleaning water is added, start the drive motor 6, so that the drive motor 6 drives the rotating rod 7 to rotate, thereby driving the stirring block 8 to rotate, and then add the coal blocks through the feed cover 5, and stir the coal blocks in the box body 1 through the stirring block 8, so that the coal blocks can be cleaned. When the rotating rod 7 rotates, the reciprocating thread groove on the outer wall of the rotating rod 7 is driven to rotate, so that the disc 91 can approach the box body 1, drive the guide column 92 to move into the box body 1, and enable the guide column 92 to push the push plate 93 to move, thereby The push plate 93 can push the sleeve 94 to move, so that the extrusion block 96 fixed on the inner wall of the sleeve 94 moves in the arc groove provided on the outer wall of the rotating shaft 95, so that the extrusion block 96 can squeeze the arc groove, so that the rotating shaft 95 rotates counterclockwise, driving the flip plate 97 to rotate, so that the flip plate 97 can flip the floating coal blocks during the cleaning of the top of the box body 1, and when the push plate 93 approaches the middle of the box body 1, the reciprocating thread groove on the left side of the rotating rod 7 rotates, so that the threaded sleeve 98 can drive the push plate 99 to approach the middle of the box body 1, so that the push plate 93 and the push plate 99 can push the coal blocks to the middle of the box body 1, so that the cleaning effect is better;

[0034] When the reciprocating threaded groove on the right side of the rotating rod 7 drives the disc 91 away from the box body 1, the disc 91 can drive the guide column 92 to move outside the box body 1, thereby driving the push plate 93 to move to the right. When the push plate 93 moves to the right, the push plate 93 can drive the sleeve 94 to move to the right, thereby causing the extrusion block 96 to move to the right in the arc groove, so that the arc groove is driven by the extrusion force to drive the rotating shaft 95 to rotate clockwise, and the rotating shaft 95 drives the flip plate 97 to reset.

[0035] See also Figure 1-Figure 10On the basis of the above embodiment, in another embodiment of the present invention, a turning device for turning the material is provided on the inner side of the stirring block 8, a shielding device for shielding the feed cover 5 is provided on the left side of the box body 1, and the turning device includes a rotating disk 101, a hinged rod 102, a turning block 103, an L-shaped connecting block 104, a movable rod 105, a connecting frame 106 and a crushing knife 107; the rotating disk 101 is fixed to the end point of the rotating shaft 95, the turning block 103 is slidably installed on the inner wall of the stirring block 8, and the turning block 103 can be moved up and down in the stirring block 8 Movement, one end of the hinged rod 102 is hinged to the side wall of the rotating disk 101, the other end of the hinged rod 102 is hinged to the flip block 103, the L-shaped connecting block 104 is slidably installed on the inner wall of the flip block 103, and the L-shaped connecting block 104 can move left and right in the flip block 103, the connecting frame 106 is fixed to the outer wall of the L-shaped connecting block 104, the crushing knife 107 is fixed to the upper and lower sides of the connecting frame 106, one end of the movable rod 105 is hinged to the bottom of the L-shaped connecting block 104, and the other end of the movable rod 105 is hinged to the outer wall of the rotating rod 7.

[0036] When the rotating shaft 95 rotates counterclockwise, the rotating disk 101 can be driven to rotate counterclockwise, and the turning block 103 can be moved back and forth in the stirring block 8 through the cooperation of the hinge rod 102. Therefore, when the turning block 103 moves back and forth at the bottom of the inner wall of the box body 1, the coal blocks at the bottom of the inner wall of the box body 1 can be turned over, thereby increasing the contact area between the coal blocks and the cleaning water, and further improving the cleaning effect;

[0037] And when the flipping block 103 moves, through the cooperation of the movable rod 105, the L-shaped connecting block 104 and the connecting frame 106, the crushing knife 107 can move back and forth between the two groups of stirring blocks 8, so that the crushing knife 107 can chop larger coal blocks. The chopped coal blocks are more easily impacted by water flow, which helps to more thoroughly remove impurities on the surface of the coal blocks.

[0038] The shielding device includes a transmission plate 111, a transmission spring 118, a transmission block 112, a connecting rod 115, a T-block 113, a connecting spring 114, a limiting rod 119, a baffle 116 and a reset spring 117. The transmission plate 111 is slidably mounted on the inner wall of the push plate 99, one side of the transmission spring 118 is fixed to the side wall of the push plate 99, and the other side of the transmission spring 118 is fixed to the protrusion of the transmission plate 111. The transmission block 112 is slidably mounted on the side wall of the push plate 99 so that the transmission block 112 can move up and down on the push plate 99. The connecting rod 115 is fixed to the top of the transmission block 112, and the connecting rod 115 passes through the top of the box body 1, and the connecting rod 115 can move left and right at the penetration of the box body 1. The T-block 11 3 penetrates through the left side of the feed cover 5, and is slidably connected at the penetration point, the T-block 113 can slide up and down at the penetration point of the feed cover 5, one side of the connecting spring 114 is fixed to the inner wall of the feed cover 5, and the other side of the connecting spring 114 is fixed to the top of the T-block 113, the top of the connecting rod 115 is slidably connected to the bottom of the T-block 113, the limiting rod 119 is fixed to the bottom of the T-block 113, the baffle 116 penetrates through the side wall of the feed cover 5, and is slidably connected at the penetration point, the top of the baffle 116 is provided with a limiting hole, the outer wall of the limiting rod 119 is fitted with the inner wall of the limiting hole, one side of the reset spring 117 is fixed to the side wall of the feed cover 5, and the other side of the reset spring 117 is fixed to the protrusion of the side wall of the baffle 116.

[0039] There are two groups of baffles 116, and the two groups of baffles 116 are symmetrically arranged with the center line of the feed cover 5 in the vertical direction as the symmetry axis. When too much coal is added to the box body 1, when the push plate 99 moves to the middle of the box body 1, the transmission plate 111 will come into contact with the accumulated coal, so that the transmission plate 111 will move in the push plate 99 under the extrusion force. Through the cooperation of the transmission block 112, the connecting rod 115 and the T-block 113, the limit rod 119 will be moved out of the limit hole, so that the limit on the baffle 116 can be released. Because the reset spring 117 is in a stretched state, the reset spring 117 drives the baffle 116 to block the feed cover 5, thereby stopping the addition of coal into the box body 1 and preventing too much coal from being added to the box body 1, which affects the cleaning effect.

[0040] When the present embodiment is working: when the rotating shaft 95 rotates counterclockwise, it can drive the rotating disk 101 to rotate counterclockwise. When the rotating disk 101 rotates counterclockwise, the rotating disk 101 will squeeze the hinged rod 102, so that the hinged rod 102 rotates at the hinge of the rotating disk 101, so that the hinged rod 102 can move downward to squeeze the flipping block 103, so that the flipping block 103 moves closer to the rotating rod 7. When the rotating disk 101 rotates clockwise, the rotating disk 101 will drive the hinged rod 102 to move upward, so that the hinged rod 102 can pull the flipping block 103 to move upward. By moving the flipping block 103 back and forth in the stirring block 8, the flipping block 103 can flip the coal blocks at the bottom of the inner wall of the box body 1, thereby improving the cleaning effect.

[0041] When the flipping block 103 approaches the rotating rod 7, the flipping block 103 will drive the L-shaped connecting block 104 to approach the rotating rod 7. When the L-shaped connecting block 104 approaches the rotating rod 7, the movable rod 105 will be squeezed, causing the movable rod 105 to rotate at the hinge, so that the movable rod 105 can squeeze the L-shaped connecting block 104 to approach the drive motor 6, so that the L-shaped connecting block 104 drives the connecting frame 106 and the crushing knife 107 to move. When the flipping block 103 is reset away from the rotating rod 7, the flipping block 103 will drive the L-shaped connecting block 104 to move back and forth. Through the movable rod 105, the L-shaped connecting block 104 can be pulled away from the drive motor 6 for reset. Through the crushing knife 107 moving back and forth in the stirring block 8, larger coal blocks can be crushed, which is convenient for cleaning operations.

[0042] When too much coal is added to the box body 1, when the push plate 99 approaches the middle of the box body 1, the transmission plate 111 will contact the accumulated coal, and the transmission plate 111 will be subjected to an extrusion force, so that the transmission plate 111 moves to the left in the push plate 99, and the transmission spring 118 is stretched. When the transmission plate 111 moves to the left in the push plate 99, the inclined surface at the top of the transmission plate 111 will contact the inclined surface at the bottom of the transmission block 112, so that the transmission plate 111 can squeeze the transmission block 112 to move upward. When the transmission block 112 moves upward, the transmission block 112 drives the connecting rod 115 to move upward. When the connecting rod 115 moves upward, it can drive the T-block 113 to move upward, squeezing the transmission block 112. The compression of the connecting spring 114 will cause the T-block 113 to drive the limiting rod 119 to move out of the limiting hole, thereby releasing the limiting of the baffle 116. Since the reset spring 117 is in a stretched state, the reset spring 117 can drive the baffle 116 to block the feed cover 5, and no more material is added to the box body 1. After the coal blocks are cleaned, the sewage in the box body 1 is discharged by opening the drain pipe on the right side of the box body 1. When the sewage in the box body 1 is discharged, the water baffle 4 at the bottom of the box body 1 is pulled, and the material in the box body 1 is no longer blocked, so that the cleaned coal blocks fall from the bottom of the box body 1, the coal blocks in the box body 1 are discharged, and the coal blocks fall onto the screen 3 to be screened.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal washing device for a coal mine, comprising a housing (1), characterized in that: A support seat (2) is fixed to the side wall of the box body (1), a screen (3) is fixed to the inner wall of the support seat (2), a driving motor (6) is fixed to the left side of the box body (1), a rotating rod (7) is fixed to the output end of the driving motor (6), the outer wall of the rotating rod (7) is provided with two groups of reciprocating thread grooves, the rotating rod (7) passes through the box body (1) and is rotatably connected at the penetration point, a stirring block (8) is fixed to the outer wall of the rotating rod (7), a feed cover (5) is fixed to the top of the box body (1), a water baffle (4) is slidably mounted on the inner wall of the bottom of the box body (1), an auxiliary device for convenient material cleaning is arranged on the outer wall of the rotating rod (7), a turning device for turning the material is arranged on the inner side of the stirring block (8), and a shielding device for shielding the feed cover (5) is arranged on the left side of the box body (1); The auxiliary device comprises a disc (91), a guide column (92), a moving block (910), a push plate 93, a sleeve (94), an extrusion block (96), a rotating shaft (95), a flip plate (97), a threaded sleeve (98) and a push plate (99); the disc (91) is threadedly connected to the reciprocating threaded outer wall of the rotating rod (7); the guide column (92) penetrates the right side of the box body (1) and is slidably connected at the penetration point; the guide column (92) One end of the guide column (92) is fixedly connected to the side wall of the disc (91), and the other end of the guide column (92) is fixedly connected to the side wall of the push plate (93). The push plate (93) is slidably mounted on the inner wall of the box body (1). The moving block (910) is slidably mounted on the outer wall of the rotating rod (7). A sleeve (94) is fixed on the side of the moving block (910) away from the rotating rod (7), and the right side of the sleeve (94) is slidably connected to the inner wall of the circular groove opened on the left side of the push plate (93).

2. A coal washing equipment for coal mines according to claim 1, characterized in that: The rotating shaft (95) passes through the stirring block (8) and is rotatably connected at the penetration point. The outer wall of the rotating shaft (95) is provided with an arc groove. The extrusion block (96) is fixed to the inner wall of the sleeve (94). The outer wall of the extrusion block (96) is in contact with the inner wall of the arc groove. The flip plate (97) is fixed to the outer wall of the rotating shaft (95).

3. A coal washing equipment for coal mines according to claim 2, characterized in that: The threaded sleeve (98) is threadedly connected to the outer wall of the reciprocating thread opened on the outer wall of the rotating rod (7), and the pushing plate (99) is fixed to the side wall of the threaded sleeve (98). The pushing plate (99) is slidably mounted on the inner wall of the box body (1).

4. A coal washing equipment for coal mines according to claim 1, characterized in that: The flipping device comprises a rotating disk (101), a hinged rod (102), a flipping block (103), an L-shaped connecting block (104), a movable rod (105), a connecting frame (106) and a crushing knife (107); the rotating disk (101) is fixed to the end point of the rotating shaft (95), the flipping block (103) is slidably mounted on the inner wall of the stirring block (8), one end of the hinged rod (102) is hinged to the side wall of the rotating disk (101), and the other end of the hinged rod (102) is hinged to the flipping block (103).

5. A coal washing equipment for coal mines according to claim 4, characterized in that: The L-shaped connecting block (104) is slidably mounted on the inner wall of the flipping block (103); the connecting frame (106) is fixed on the outer wall of the L-shaped connecting block (104); the crushing knife (107) is fixed on the upper and lower sides of the connecting frame (106); one end of the movable rod (105) is hinged on the bottom of the L-shaped connecting block (104); and the other end of the movable rod (105) is hinged on the outer wall of the rotating rod (7).

6. The coal washing equipment for coal mine according to claim 1, characterized in that: The shielding device comprises a transmission plate (111), a transmission spring (118), a transmission block (112), a connecting rod (115), a T-block (113), a connecting spring (114), a limiting rod (119), a baffle (116) and a return spring (117); the transmission plate (111) is slidably mounted on the inner wall of the pushing plate (99); one side of the transmission spring (118) is fixed to the side wall of the pushing plate (99); and the other side of the transmission spring (118) is fixed to the protrusion of the transmission plate (111).

7. A coal washing equipment for coal mines according to claim 6, characterized in that: The transmission block (112) is slidably mounted on the side wall of the push plate (99), the connecting rod (115) is fixed on the top of the transmission block (112), the T-block (113) passes through the left side of the feed cover (5) and is slidably connected at the penetration point, one side of the connecting spring (114) is fixed to the inner wall of the feed cover (5), and the other side of the connecting spring (114) is fixed to the top of the T-block (113), the top of the connecting rod (115) is slidably connected to the bottom of the T-block (113), and the limiting rod (119) is fixed to the bottom of the T-block (113).

8. A coal washing equipment for coal mines according to claim 7, characterized in that: The baffle (116) passes through the side wall of the feed cover (5) and is slidably connected at the penetration point. A limiting hole is provided at the top of the baffle (116). The outer wall of the limiting rod (119) fits with the inner wall of the limiting hole. One side of the return spring (117) is fixed to the side wall of the feed cover (5), and the other side of the return spring (117) is fixed to the protrusion of the side wall of the baffle (116).

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