Coal washing and dewatering device

Abstract

The utility model discloses a coal washing dehydration device, which belongs to the technical field of coal washing, and comprises a box body, a fixed frame is fixedly arranged on the inner bottom surface of the box body, filter plates for filtering coal cinder and water are symmetrically and fixedly arranged on the inner side wall of the fixed frame, and through grooves for coal cinder to pass through are arranged on the inner walls of the two sides of the fixed frame and positioned on the two sides of the two filter plates in a penetrating manner; collecting boxes used for collecting coal cinder are fixedly arranged on the two side faces of the fixing frame and located on one side of each through groove, transverse grooves are transversely formed in the positions, located above the two filter plates, of the inner side wall of the fixing frame, L-shaped movable frames are slidably arranged in inner cavities of the two transverse grooves, and shovel plates are transversely and fixedly arranged at the ends, located in the inner cavity of the fixing frame, of the two movable frames; the free ends of the two movable frames extend to one side of the fixed frame and are fixedly provided with connecting frames. The coal washing and dewatering device solves the problem that a mixture of coal cinder and water cannot be recycled and filtered and then is directly discharged out of the device, so that the resource waste and the coal washing cost are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal washing, in particular to a coal washing dehydration device. Background Technique

[0002] Coal washing is an indispensable process in coal deep processing. Many impurities will be mixed in the coal during the mining process, and coal washing is to remove the impurities in the coal. After the coal is washed, a dehydration device will be used to dehydrate it. Now, most dehydration devices use the centrifugal method for dehydration. However, during the centrifugal dehydration of coal, a certain amount of small particle coal, that is, coal slag, will be generated, and the coal slag will be mixed with the water centrifugally separated, resulting in the inability to recover and filter the mixture of coal slag and water generated during the dehydration process, but directly discharging it from the device, thus causing waste of resources and increasing the cost of coal washing.

[0003] For example, the existing Chinese publication number is: CN216080661U, a coal washing dehydrator, which: "comprises a dehydration tank, the inner wall of the dehydration tank is fixedly connected with a drive box, a rotating shaft is arranged inside the drive box, a wire winding roller is sleeved on the outer wall of the rotating shaft, a first motor is fixedly connected to one end of the rotating shaft, and a traction rope is fixedly connected to the outer surface of the wire winding roller."

[0004] It can be seen that this cited patent document has the problem of being difficult to recover and filter the mixture of coal slag and water. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a coal washing dehydration device to solve the problems put forward in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A coal washing dehydration device includes a box body, a fixing frame is fixedly arranged on the inner bottom surface of the box body, filter plates for filtering coal slag and water are symmetrically fixedly arranged on the inner side walls of the fixing frame, through grooves for the coal slag to pass through are arranged through the two side inner walls of the fixing frame and on both sides of the two filter plates, collecting boxes for collecting coal slag are fixedly arranged on both side surfaces of the fixing frame and on one side of each through groove, transverse grooves are horizontally opened on the inner side walls of the fixing frame and above the two filter plates, L-shaped movable frames are slidably arranged in the inner cavities of the two transverse grooves, shoveling plates are horizontally fixedly arranged at one ends of the two movable frames located in the inner cavity of the fixing frame, the free ends of the two movable frames extend to one side of the fixing frame and are fixedly provided with connecting frames, an electric push rod is fixedly arranged on one side surface of the fixing frame through a vertical plate, and the output end of the electric push rod penetrates through the vertical plate and is connected to the connecting frame.

[0007] Preferably, the top surface and the bottom surface of the fixing frame are both arranged in a hollowed-out manner, and a guiding plate for guiding coal slag and water is fixedly arranged on the inner side wall of the box body and above the fixing frame.

[0008] Preferably, a fixing block is fixedly arranged on the inner side wall of the box body, and a driving motor is fixedly arranged on the inner bottom surface of the fixing block.

[0009] Preferably, a plurality of chutes arranged in an annular array are formed on the top surface of the fixing block, and a spherical ball is slidably arranged in the inner cavity of each chute.

[0010] Preferably, the output shaft of the driving motor penetrates through the fixing block and is connected with a dehydration cylinder for dehydrating coal, and the bottom surface of the dehydration cylinder abuts against each spherical ball.

[0011] Preferably, a water outlet is formed at the center position of the bottom surface of the box body, and a hydraulic cylinder is fixedly arranged on one side surface of the box body through a support frame.

[0012] Preferably, the hydraulic cylinder is arranged directly above the box body, and the piston rod of the hydraulic cylinder is connected with a box cover through a bracket.

[0013] Compared with the prior art, the technical effects and advantages of the present utility model are as follows:

[0014] For this coal washing and dehydration device, through the arrangement of two filter plates, the mixture of coal slag and water can be filtered. And the arrangement of the shovel plate can push the coal slag falling on the surface of the filter plate and push it into the collection box for collection, avoiding the situation that the mixture of coal slag and water will be directly discharged from the device instead of being recycled and filtered, thereby reducing the waste of resources and the cost of coal washing.

[0015] Through the arrangement of the electric push rod and the connecting frame, the shovel plate can be driven to perform reciprocating motion. And the arrangement of the guiding plate can guide the coal slag and water to move above the fixing frame, so that the coal slag and water can fall onto the surface of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a cross-sectional view of the box body and the box cover of the present utility model;

[0019] Figure 3 is a schematic structural diagram of the fixing frame and the filter plate of the present utility model;

[0020] Figure 4 Schematic structural diagram of the shovel plate and the connecting frame of the present utility model;

[0021] Figure 5 Of the present utility model Figure 2 Schematic structural diagram of the position A in

[0022] Explanation of reference numerals:

[0023] In the figure: 1, box body; 2, fixing frame; 3, filter plate; 4, through groove; 5, collection box; 6, transverse groove; 7, movable frame; 8, shovel plate; 9, connecting frame; 10, electric push rod; 11, fixing block; 12, drive motor; 13, dehydration cylinder; 14, chute; 15, spherical ball; 16, guiding plate; 17, hydraulic cylinder; 18, box cover. Detailed implementation manners

[0024] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0025] Unless otherwise defined, the up, down, left, right, front, back, inner and outer directions involved in this article are based on the up, down, left, right, front, back, inner and outer directions in the figures shown in the present utility model, and are hereby explained together.

[0026] The connection method can adopt existing methods such as bonding, welding, bolt connection, etc., depending on actual needs.

[0027] Such as Figures 1 to 5 A coal washing and dehydration device shown in the figure includes a box body 1. A circular ring is fixedly provided on the lower half of the periphery of the box body 1, and support legs are fixedly provided on the ground of the circular ring to support the box body 1. A fixing frame 2 is fixedly provided on the inner bottom surface of the box body 1. The top and bottom surfaces of the fixing frame 2 are both provided with openings. Symmetrically fixed on the inner side wall of the fixing frame 2 are filter plates 3 for filtering coal slag and water. An outlet is opened at the center position of the bottom surface of the box body 1, and the outlet is arranged directly below the two filter plates 3. When centrifugally dehydrating coal, the thrown coal slag and water will move along the inner wall of the box body 1 into the filter plates 3, and the two filter plates 3 will filter the coal slag and water, so that the coal slag larger than the filter holes of the filter plates 3 will remain on the surface of the filter plates 3, while the water will pass through the two filter plates 3 and be discharged from the outlet of the box body 1, thus recovering and filtering the filtered water for convenient reuse.

[0028] On the inner side walls of the fixing frame 2, above the two filter plates 3, transverse grooves 6 are horizontally opened. In the inner cavities of the two transverse grooves 6, L-shaped movable frames 7 are slidably arranged. At one ends of the two movable frames 7 located in the inner cavity of the fixing frame 2, scraping plates 8 are horizontally fixed. The two scraping plates 8 are respectively attached to the surfaces of the two filter plates 3. The free ends of the two movable frames 7 both extend to one side of the fixing frame 2 and are fixed with connecting frames 9. On one side surface of the fixing frame 2, an electric push rod 10 is fixed through a vertical plate. The output end of the electric push rod 10 penetrates through the vertical plate and is connected to the connecting frame 9. By turning on the electric push rod 10, the electric push rod 10 drives the connecting frame 9 to move on one side of the fixing frame 2, so that the connecting frame 9 can drive the two movable frames 7 to move in the inner cavities of the two transverse grooves 6, and then the two movable frames 7 can drive the two scraping plates 8 to move on the surfaces of the two filter plates 3 respectively, so that the two scraping plates 8 can push the coal cinder accumulated on the surfaces of the two filter plates 3, avoiding the accumulated coal cinder from blocking the filter holes. When the electric push rod 10 drives the movable frame 7 to move to one side of the transverse groove 6 through the connecting frame 9, the electric push rod 10 moves in the reverse direction, and then it can drive the movable frame 7 to move to the other side of the transverse groove 6 in the reverse direction. By repeating the operation, the scraping plate 8 can be driven to perform a reciprocating motion.

[0029] On both inner side walls of the fixing frame 2 and on both sides of the two filter plates 3, through grooves 4 for the coal cinder to pass through are provided. On both side surfaces of the fixing frame 2 and on one side of each through groove 4, collecting boxes 5 for collecting the coal cinder are fixed. When the scraping plates 8 push the coal cinder to both sides of the top surface of the filter plates 3, the coal cinder will pass through the through grooves 4 and fall into the collecting boxes 5 for collection, which is convenient for subsequent operations, and further avoids the situation that the mixture of coal cinder and water will be directly discharged from the device instead of being recycled and filtered, thereby reducing the waste of resources and the coal washing cost.

[0030] On the inner side wall of the box body 1, a fixing block 11 is fixed. On the inner bottom surface of the fixing block 11, a driving motor 12 is fixed. On the top surface of the fixing block 11, a number of sliding grooves 14 arranged in an annular and regular array are opened. In the inner cavity of each sliding groove 14, a spherical ball 15 is slidably arranged. The output shaft of the driving motor 12 penetrates through the fixing block 11 and is connected with a dehydration cylinder 13 for dehydrating coal. The bottom surface of the dehydration cylinder 13 abuts against each spherical ball 15. The staff places the coal to be dehydrated into the dehydration cylinder 13. At this time, the driving motor 12 is turned on, and the driving motor 12 drives the dehydration cylinder 13 to rotate, so as to drive the coal inside the dehydration cylinder 13 to rotate, thereby performing centrifugal dehydration. When the dehydration cylinder 13 rotates, the dehydration cylinder 13 will abut against the multiple spherical balls 15 to rotate, so that the multiple spherical balls 15 can support the dehydration cylinder 13 and also assist in rotation.

[0031] On the inner side wall of the box body 1 and above the fixing frame 2, a guide plate 16 for guiding coal slag and water is fixedly installed. The guide plate 16 is arranged below the fixing block 11. The central position of the guide plate 16 is recessed downward, and a through hole for the coal slag and water to pass through is opened at the central position. The through hole is arranged directly above the filter plate 3. When the coal slag and water are centrifugally thrown onto the inner wall of the box body 1, due to gravity, the coal slag and water will fall onto the surface of the guide plate 16 and move along the surface of the guide plate 16 to the through hole and pass through the through hole, so that the coal slag and water can fall onto the filter plate 3 for filtration.

[0032] On one side of the box body 1, a hydraulic cylinder 17 is fixedly installed through a support frame. The support frame is fixedly installed on one side of the ring. The hydraulic cylinder 17 is arranged directly above the box body 1. The piston rod of the hydraulic cylinder 17 is connected with a box cover 18 through a bracket. When putting in coal, the hydraulic cylinder 17 drives the box cover 18 to move upward, which can facilitate personnel to put in and take out coal. When centrifugal dehydration is carried out, the hydraulic cylinder 17 drives the box cover 18 to move downward, so that the box cover 18 is clamped on the top surface of the box body 1 to limit the top surface of the box body 1.

[0033] Working principle:

[0034] For this coal washing and dehydration device, the coal to be dehydrated is placed into the dehydration cylinder 13, and the box cover 18 is clamped on the top surface of the box body 1. At this time, the drive motor 12 is started to drive the dehydration cylinder 13 to rotate, so that the coal in the inner cavity of the dehydration cylinder 13 can be centrifugally dehydrated. The water and coal slag thrown out will fall along the inner wall of the box body 1 and the guide plate 16 into the fixing frame 2 and contact the filter plate 3, so that the water can pass through the two filter plates 3 and be discharged from the water outlet, and the discharged water can be recycled and filtered. The coal slag will remain on the surface of the two filter plates 3. At this time, the electric push rod 10 is started. The electric push rod 10 drives the two movable frames 7 to move in the inner cavity of the transverse groove 6 through the connecting frame 9, and then synchronously drives the two shovel plates 8 to move along the surface of the filter plate 3, so that the two shovel plates 8 can push the coal slag on the surface of the two filter plates 3, and then push it to both sides of the filter plate 3 and pass through the through groove 4 and fall into the collection box 5 for collection, thus completing the filtration of the mixture of coal slag and water, avoiding the situation that the mixture of coal slag and water will be directly discharged from the device instead of being recycled and filtered, thereby reducing the waste of resources and the coal washing cost.

[0035] It should be noted that in this text, relational terms such as "one" and "two" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0036] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal washing and dewatering device, comprising a box body (1), characterized in that: The inner bottom surface of the box body (1) is fixedly provided with a fixing frame (2). The inner side walls of the fixing frame (2) are symmetrically and fixedly provided with filter plates (3) for filtering coal cinder and water. Through grooves (4) for the coal cinder to pass through are arranged through the two inner side walls of the fixing frame (2) and on both sides of the two filter plates (3). Collection boxes (5) for collecting coal cinder are fixedly provided on one side of each through groove (4) on both side surfaces of the fixing frame (2). Horizontal grooves (6) are horizontally opened on the inner side walls of the fixing frame (2) above the two filter plates (3). L-shaped movable frames (7) are slidably arranged in the inner cavities of the two horizontal grooves (6). Shoveling plates (8) are horizontally and fixedly arranged at one ends of the two movable frames (7) located in the inner cavity of the fixing frame (2). The free ends of the two movable frames (7) extend to one side of the fixing frame (2) and are fixedly provided with connecting frames (9). An electric push rod (10) is fixedly provided on one side surface of the fixing frame (2) through a vertical plate. The output end of the electric push rod (10) penetrates through the vertical plate and is connected to the connecting frame (9).

2. The coal washing and dewatering device according to claim 1, wherein: The top surface and the bottom surface of the fixing frame (2) are both arranged in a hollowed-out manner. A guiding plate (16) for guiding coal cinder and water is fixedly provided on the inner side wall of the box body (1) and above the fixing frame (2).

3. A coal washing and dewatering device according to claim 1, characterized in that: A fixing block (11) is fixedly provided on the inner side wall of the box body (1). A driving motor (12) is fixedly provided on the inner bottom surface of the fixing block (11).

4. A coal washing and dewatering device according to claim 3, characterized in that: A plurality of chutes (14) arranged in an annular and integral manner are opened on the top surface of the fixing block (11). Spherical balls (15) are slidably arranged in the inner cavities of each chute (14).

5. The coal washing and dewatering device according to claim 4, characterized in that: The output shaft of the driving motor (12) penetrates through the fixing block (11) and is connected with a dehydration cylinder (13) for dehydrating coal. The bottom surface of the dehydration cylinder (13) abuts against each spherical ball (15).

6. A coal washing and dewatering device according to claim 1, characterized in that: A water outlet is opened at the central position of the bottom surface of the box body (1). A hydraulic cylinder (17) is fixedly provided on one side surface of the box body (1) through a support frame.

7. A coal washing and dewatering device according to claim 6, characterized in that: The hydraulic cylinder (17) is arranged directly above the box body (1). The piston rod of the hydraulic cylinder (17) is connected with a box cover (18) through a bracket.

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