A dewatering apparatus for a coal washery

Abstract

The utility model relates to a coal washing technical field, a dehydration equipment for coal washery, including dehydration tank and dehydration cylinder that set up in the inside of dehydration tank, the inside of dehydration tank is provided with driving piece, still including the impurity removal subassembly that set up in the inside of dehydration tank, the through -hole that opens in the top of dehydration tank is included, the top of through -hole is opened to have sealing groove, the inside splicing of through -hole has the connecting plate, the top and bottom of connecting plate are fixed with the baffle and the bristle brush respectively, the utility model worker inserts the connecting plate into the inside of dehydration tank, makes the bristle brush of connecting plate bottom and dehydration cylinder outside contact in the dehydration tank, after connecting plate inserts dehydration tank, starts driving piece and drives dehydration cylinder to rotate, when dehydration cylinder rotates, the bristle brush will carry out the clean brush of filter hole on dehydration cylinder, avoid coal impurity and block filter hole, through the self -rotation and self -cleaning of dehydration cylinder, saved the time of staff's cleaning, reduced the manpower cost, improved the work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of coal washing technology, specifically a dewatering device for coal washing plants. Background Technology

[0002] Coal washing is an indispensable step in the deep processing of coal. Coal directly mined from the mine is called raw coal. During the mining process, raw coal contains many impurities, and its quality varies. Coal washing is an industrial process that removes these impurities from raw coal or separates high-quality coal from low-quality coal. After coal washing, the coal needs to be dehydrated using a dewatering machine to remove residual moisture.

[0003] A coal washing and dewatering machine with Chinese patent application number CN202322041332.1 has the following advantages: during use, a drive motor can be set to realize the rotation and sliding of the dewatering barrel, thereby facilitating the pulling of the dewatering barrel out of the outer cylinder for cleaning, which effectively reduces the labor intensity of workers, saves time and effort, and is highly efficient. However, although the device can remove the dewatering barrel for coal dewatering for cleaning, it still requires manual operation by workers, resulting in a low degree of automation. The manual cleaning of the dewatering barrel leads to increased labor costs and low work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a dewatering device for coal washing plants to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dewatering device for a coal washing plant, comprising a dewatering tank and a dewatering cylinder disposed inside the dewatering tank, wherein the dewatering tank is provided with a driving component for rotating the dewatering cylinder, and further comprising: A cleaning component for cleaning the dehydration cylinder is installed inside the dehydration tank. The cleaning component includes a through hole at the top of the dehydration tank, a sealing groove at the top of the through hole, a connecting plate inserted inside the through hole, a sealing plate and a hard brush fixed at the top and bottom of the connecting plate respectively, the hard brush contacting the outside of the dehydration cylinder, the sealing plate being bolted to the inner wall of the sealing groove, and two symmetrical handles fixed at the top of the sealing plate.

[0006] Preferably, a coal feed cylinder is fixed to the inner wall of the dewatering tank, and the coal outlet end of the coal feed cylinder extends into the interior of the dewatering tank.

[0007] Preferably, the dewatering box has a coal outlet on the side away from the coal inlet cylinder, and the inner wall of the coal outlet is fixed with an inclined discharge plate, which is located below the discharge port of the dewatering cylinder.

[0008] Preferably, the inner wall of the dehydration tank is fixed with two limiting plates for supporting the dehydration cylinder, and the inner wall of the limiting plates is rotatably connected with a fixing ring, which is fixed to the outside of the dehydration cylinder.

[0009] Preferably, the inner wall of the dehydration tank is fixed with two inclined drainage plates, the drainage plates and the inner wall of the dehydration tank are connected by a drainage pipe, and the bottom end of the drainage pipe is provided with a flange.

[0010] Preferably, a PLC controller is fixed to the top of the dehydration tank, and the PLC controller is electrically connected to the motor in the drive unit.

[0011] Preferably, an inspection cover is bolted to one side of the dehydration tank, and support legs are fixed to the four corners of the bottom of the dehydration tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The present invention involves inserting a connecting plate into the dewatering tank, so that the hard brush at the bottom of the connecting plate contacts the outside of the dewatering cylinder inside the dewatering tank. After the connecting plate is inserted into the dewatering tank, the sealing plate is fixed in the sealing groove with bolts. Then, the drive unit is started to drive the dewatering cylinder to rotate. When the dewatering cylinder rotates, the hard brush will clean the filter holes on the dewatering cylinder to prevent coal impurities from clogging the filter holes. Through the self-rotation and self-cleaning of the dewatering cylinder, the cleaning time of the workers is saved, the labor cost is reduced, and the work efficiency is improved. Attached Figure Description

[0013] Figure 1 A schematic diagram of a preferred embodiment of the dewatering equipment for a coal washing plant provided by this utility model; Figure 2 This is a schematic diagram of the bottom structure of the dehydration tank provided by this utility model; Figure 3 This is a schematic diagram of the internal structure of the dehydration tank provided by this utility model; Figure 4 A schematic diagram of the structure of the impurity removal component provided by this utility model; Figure 5 Provided by this utility model Figure 4 Enlarged structural diagram at point A; Figure 6 A schematic diagram of the structure of the driving component provided by this utility model; Figure 7 This is a schematic diagram of the connection between the dehydration cylinder and the limiting plate provided by this utility model. Figure 8 A schematic diagram of the structure of the drainage board provided by this utility model.

[0014] In the diagram: 1. Dewatering tank; 2. Dewatering cylinder; 3. Drive unit; 4. Impurity removal assembly; 41. Through hole; 42. Sealing groove; 43. Connecting plate; 44. Sealing plate; 45. Hard brush; 46. Handle; 5. Coal inlet; 6. Coal outlet; 7. Discharge plate; 8. Limiting plate; 9. Fixing ring; 10. Drainage plate; 11. Drainage pipe; 12. PLC controller; 13. Inspection cover; 14. Support leg. Detailed Implementation

[0015] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0016] Please see Figure 1-8 As shown, a dewatering device for a coal washing plant includes a dewatering tank 1 and a dewatering cylinder 2 disposed inside the dewatering tank 1. The dewatering tank 1 is provided with a drive component 3 for rotating the dewatering cylinder 2, and also includes a cleaning component 4 disposed inside the dewatering tank 1 for cleaning the dewatering cylinder 2.

[0017] A dewatering cylinder 2 is installed inside the dewatering tank 1 to dewater the washed coal. The dewatering cylinder 2 is rotated by the power of the drive component 3, and the water in the coal is separated under the action of centrifugal force. The drive component 3 is driven by the drive motor to rotate the shaft, and the shaft drives the three connecting frames to rotate. Since the connecting frames are fixed to the inner wall of the dewatering cylinder 2, the dewatering cylinder 2 is rotated. When the dewatering cylinder 2 dewaters the coal, some impurities may adhere to the filter holes of the dewatering cylinder 2 and cause blockage. The impurity removal component 4 can clean the impurities attached to the dewatering cylinder 2 while it is rotating. Both the dewatering tank 1 and the dewatering cylinder 2 are set in an inclined position.

[0018] The impurity removal component 4 includes a through hole 41 opened at the top of the dehydration tank 1. A sealing groove 42 is opened at the top of the through hole 41. A connecting plate 43 is inserted into the inside of the through hole 41. A sealing plate 44 and a hard brush 45 are fixed at the top and bottom of the connecting plate 43, respectively. The hard brush 45 is in contact with the outside of the dehydration cylinder 2. The sealing plate 44 is installed on the inner wall of the sealing groove 42 by bolts. Two symmetrical handles 46 are fixed at the top of the sealing plate 44.

[0019] A through hole 41 is made at the top of the dewatering tank 1 to facilitate the insertion of the connecting plate 43 into the dewatering tank 1. The hard brush 45 at the bottom of the connecting plate 43 contacts the outside of the dewatering cylinder 2. After the connecting plate 43 is inserted into the dewatering tank 1, the sealing plate 44 at the top of the connecting plate 43 falls into the sealing groove 42, achieving a certain limiting effect and effectively preventing water from splashing out of the dewatering tank 1. Then, the sealing plate 44 is fixed in the sealing groove 42 by bolts. The inner walls of the sealing groove 42 and the sealing plate 44 are provided with threaded holes that match the bolts. After the sealing plate 44 is fixed, when the dewatering cylinder 2 rotates, the hard brush 45 will clean the filter holes on the dewatering cylinder 2 to prevent coal impurities from clogging the filter holes.

[0020] A coal feed cylinder 5 is fixed to the inner wall of the dewatering box 1, and the coal outlet end of the coal feed cylinder 5 extends into the interior of the dewatering cylinder 2. A coal outlet 6 is opened on the side of the dewatering box 1 away from the coal feed cylinder 5. An inclined discharge plate 7 is fixed to the inner wall of the coal outlet 6, and the discharge plate 7 is located below the discharge port of the dewatering cylinder 2. Two limiting plates 8 for supporting the dewatering cylinder 2 are fixed to the inner wall of the dewatering box 1. A fixing ring 9 is rotatably connected to the inner wall of the limiting plate 8, and the fixing ring 9 is fixed to the outside of the dewatering cylinder 2. Two inclined drainage plates 10 are fixed to the inner wall of the dewatering box 1. A drainage pipe 11 is connected to the inner wall of the dewatering box 1. A flange is provided at the bottom end of the drainage pipe 11. A PLC controller 12 is fixed to the top of the dewatering box 1. The PLC controller 12 is electrically connected to the motor in the drive component 3. An inspection cover 13 is installed on one side of the dewatering box 1 by bolts. Support legs 14 are fixed at the four corners of the bottom of the dewatering box 1.

[0021] The coal feed hopper 5 is used to connect the coal washing equipment. The washed coal is conveyed to the dewatering hopper 2 through its arc-shaped channel. Because the dewatering hopper 2 is inclined, the coal falls with the inclination angle as it rotates and is discharged from the coal outlet 6. A discharge plate 7 is installed below the coal outlet 6 to prevent coal from accumulating there. Two limiting plates 8 are fixed to the inner wall of the dewatering box 1 to support the dewatering hopper 2. Simultaneously, the stability of the dewatering hopper 2 during rotation is improved by the rotating of the fixing ring 9 fixed to the outside of the dewatering hopper 2 within the limiting plates 8, thereby improving the stability of coal dewatering. Two inclined drainage plates 10 are mirror-fixed to the inner wall of the dewatering box 1 to allow the coal to drain properly. The water separated from the wastewater flows to the drain pipe 11. The drain pipe 11 has a flange at the bottom, which can be connected to the wastewater treatment equipment for wastewater treatment and reuse. By fixing the PLC controller 12 on the top of the dewatering tank 1, the drive unit 3 can be started by the PLC controller 12. The circuit working principle of the motor in the PLC controller 12 and the drive unit 3 is common knowledge in the field and has been disclosed in the prior art, so it will not be described in detail here. By setting the inspection cover 13, the dewatering tank 1 can be opened when the motor fails, the motor can be separated from the shaft, and the motor can be disassembled, repaired or replaced. By setting the support leg 14, the dewatering tank 1 can be supported to improve its working stability.

[0022] Working principle: The operator inserts the connecting plate 43 into the dewatering tank 1, so that the hard bristle brush 45 at the bottom of the connecting plate 43 contacts the outside of the dewatering cylinder 2 inside the dewatering tank 1. After the connecting plate 43 is inserted into the dewatering tank 1, the sealing plate 44 at the top of the connecting plate 43 falls into the sealing groove 42. Then, the sealing plate 44 is fixed in the sealing groove 42 with bolts. After the sealing plate 44 is fixed, the motor in the drive unit 3 is started by the PLC controller 12. At the same time, the coal washing equipment transports the washed coal into the dewatering cylinder 2 through the arc-shaped channel of the coal inlet 5. The motor drives the rotating shaft to rotate, and the rotating shaft drives the three connecting frames to rotate. Since the connecting frame is fixed to the inner wall of the dewatering cylinder 2, it drives the dewatering cylinder 2 to rotate. Under the action of centrifugal force, the dewatering cylinder 2 separates the water from the coal. When the dewatering cylinder 2 rotates, the hard brush 45 cleans the filter holes on the dewatering cylinder 2 to prevent coal impurities from clogging the filter holes. The separated wastewater flows into the drain pipe 11 through the drain plate 10. The bottom of the drain pipe 11 is equipped with a flange, which can be connected to the wastewater treatment equipment for wastewater treatment and secondary use. Since the dewatering cylinder 2 is inclined, the dewatered coal falls with the tilt angle as the dewatering cylinder 2 rotates and is discharged from the coal outlet 6.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A dewatering device for a coal washing plant, comprising a dewatering tank (1) and a dewatering cylinder (2) disposed inside the dewatering tank (1), wherein the dewatering tank (1) is provided with a driving component (3) for rotating the dewatering cylinder (2), characterized in that, Also includes: The cleaning component (4) is installed inside the dehydration tank (1) for cleaning the dehydration cylinder (2). The cleaning component (4) includes a through hole (41) on the top of the dehydration tank (1). A sealing groove (42) is provided on the top of the through hole (41). A connecting plate (43) is inserted into the through hole (41). A sealing plate (44) and a hard brush (45) are fixed on the top and bottom of the connecting plate (43), respectively. The hard brush (45) is in contact with the outside of the dehydration cylinder (2). The sealing plate (44) is installed on the inner wall of the sealing groove (42) by bolts. Two symmetrical handles (46) are fixed on the top of the sealing plate (44).

2. The dewatering equipment for a coal washing plant according to claim 1, characterized in that: The inner wall of the dewatering box (1) is fixed with a coal feed cylinder (5), and the coal outlet end of the coal feed cylinder (5) extends into the interior of the dewatering cylinder (2).

3. A dewatering device for a coal washing plant according to claim 2, characterized in that: The dewatering tank (1) has a coal outlet (6) on the side away from the coal inlet cylinder (5). The inner wall of the coal outlet (6) is fixed with an inclined discharge plate (7), which is located below the discharge port of the dewatering cylinder (2).

4. A dewatering device for a coal washing plant according to claim 1, characterized in that: The inner wall of the dehydration tank (1) is fixed with two limiting plates (8) for supporting the dehydration cylinder (2). The inner wall of the limiting plate (8) is rotatably connected with a fixing ring (9), which is fixed to the outside of the dehydration cylinder (2).

5. A dewatering device for a coal washing plant according to claim 1, characterized in that: The inner wall of the dehydration tank (1) is fixed with two inclined drainage plates (10), and the drainage plates (10) and the inner wall of the dehydration tank (1) are connected by a drainage pipe (11), and a flange is provided at the bottom end of the drainage pipe (11).

6. A dewatering device for a coal washing plant according to claim 1, characterized in that: A PLC controller (12) is fixed on the top of the dehydration tank (1), and the PLC controller (12) is electrically connected to the motor in the drive unit (3).

7. A dewatering device for a coal washing plant according to claim 1, characterized in that: A maintenance cover (13) is bolted to one side of the dehydration tank (1), and support legs (14) are fixed to the four corners of the bottom of the dehydration tank (1).

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