A slime water treatment device for coal washing and processing

Abstract

The present invention relates to the technical field of coal mine treatment, and specifically relates to a coal slime water treatment device for coal washing and processing, which includes a treatment tank. At least three lower isolation rings are concentrically arranged inside the treatment tank, and upper isolation rings are arranged at positions inside the treatment tank that are concentric with and staggered from the lower isolation rings. The bottom of the lower isolation ring is sealed with the treatment tank, and the top of the lower isolation ring is not sealed with the treatment tank. The coal slime water treatment device for coal washing and processing proposed by the present invention can utilize the cooperation of a stirring device and a diversion channel to achieve sufficient mixing of the medicament. During the mixing process, it can automatically maintain the water level and continuously treat the coal slime water. It can also utilize the cooperation of an extrusion device and a two-way docking device to achieve efficient separation of the coal slime, and the separation effect is good. It solves the problems of uneven mixing of the medicament and poor separation effect of the coal slime in the existing coal slime water treatment equipment, and can effectively improve the treatment effect of the coal slime water.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine treatment, and particularly to a coal slime water treatment device for coal washing and processing. Background Technique

[0002] Coal slime water is wastewater containing a large amount of coal powder and mud generated during the coal washing process in coal mines. Since a large amount of water is used during the coal washing process in coal mines, a large amount of coal slime water will be produced. If the coal slime water is not treated, it will pollute the environment and waste a large amount of water resources at the same time.

[0003] In the existing coal slime water treatment process, the coal slime water will be stored in a sewage tank first, and then corresponding agents will be added to the coal slime water to adjust parameters such as the pH value of the coal slime water. A flocculant will also be added to make the coal slime in the coal slime water easier to precipitate. Then, the coal slime water will be passed through equipment such as a filter press and a hydrocyclone to realize the separation of coal slime and water, so as to recycle the water in the coal slime water.

[0004] However, there are a large number of problems in the existing treatment process. First, if the agent is directly added to the equipment, due to the unreasonable design of the existing equipment, the newly added agent and the coal slime water are not fully mixed and are transported to the next-stage treatment process, resulting in poor use effect of the agent. If multiple agent mixing devices are connected in parallel and supplied alternately or used in series, it will require expensive costs. If a separate mixing tank is used for mixing, it will require a large floor area. Second, the existing equipment for separating coal slime water such as filter presses and hydrocyclones can obtain better separation effects only when the coal slime particles are within a suitable range. Therefore, it is difficult to meet the existing use requirements.

[0005] Therefore, we need a coal slime water treatment device for coal washing and processing to solve the problems of uneven mixing of agents and poor coal slime separation effect in the existing coal slime water treatment equipment, and can effectively improve the treatment effect of coal slime water. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems of uneven mixing of agents and poor coal slime separation effect in the existing coal slime water treatment equipment. The present application provides a coal slime water treatment device for coal washing and processing, which can effectively improve the treatment effect of coal slime water.

[0007] To achieve the above object, the present invention provides the following technical solution: A coal slime water treatment device for coal washing and processing, comprising:

[0008] A treatment tank, wherein at least three lower isolation rings are concentrically arranged inside the treatment tank, and an upper isolation ring is arranged inside the treatment tank at a position concentric with and staggered with the lower isolation rings, the bottom of the lower isolation ring is sealed with the treatment tank, and the top of the lower isolation ring is not sealed with the treatment tank, the top height of the upper isolation ring is higher than the top height of the lower isolation ring, and the bottom of the upper isolation ring is sealed with the treatment tank, concentric water grooves are respectively formed between adjacent upper isolation rings and lower isolation rings, and a guide flow channel composed of concentric water grooves connected in series is jointly formed between the upper isolation ring and the lower isolation ring;

[0009] A stirring device, the stirring device includes a main rotating shaft arranged concentrically with the lower isolation ring, and the main rotating shaft is rotatably installed with the processing tank, the processing tank is equipped with a main motor for driving the main rotating shaft to rotate, and the main rotating shaft is fixedly equipped with an upper stirring frame inserted into each concentric water tank for rotation and stirring, the inlet of the diversion channel is the concentric water tank closest to the main rotating shaft, and the outlet of the diversion channel is the concentric water tank farthest from the main rotating shaft, the processing tank injects external coal slurry water into the inlet of the diversion channel through a water supply pump, and the processing tank injects external reagents into the inlet of the diversion channel through a drug supply pump.

[0010] Preferably, a gas-liquid separation membrane is fixedly installed on the top of the guide flow channel, and a gas collecting cavity is formed between the gas-liquid separation membrane and the top of the processing tank. An exhaust port connected to the gas collecting cavity is installed on the top of the processing tank. The gas-liquid separation membrane is used to separate the gas in the guide flow channel into the gas collecting cavity and then discharge it through the exhaust port.

[0011] Preferably, a hollow butt joint is concentrically arranged in the main rotating shaft, and an annular liquid delivery sleeve is fixedly installed in the processing tank and is rotatably sealed with the inlet end of the hollow butt joint, and the annular liquid delivery sleeve is connected with the output end of the drug supply pump, and the upper stirring frame is provided with a liquid delivery pipe connected with the hollow butt joint at the corresponding concentric water tank, and the liquid delivery pipe sprays the agent into the guide channel through a liquid spray head.

[0012] Preferably, the output end of the main motor is driven by a pulley, and the pulley drives the water supply pump and the medicine supply pump to rotate respectively through a toothed belt.

[0013] Preferably, a controller is fixedly installed at the front end of the processing tank, and a liquid level sensor for detecting the liquid level in the diversion channel is installed in the diversion channel, and the controller is electrically connected to the liquid level sensor and the main motor respectively.

[0014] Preferably, a bottom partition is fixedly installed at the bottom of the diversion channel, and the bottom partition and the bottom of the treatment tank are separated by an intermediate filter membrane into an upper liquid storage chamber and a lower liquid storage chamber arranged from top to bottom. The lower liquid storage chamber is communicated with the outlet of the diversion channel through a diversion pipe. A two-way docking device is arranged at the bottom of the treatment tank, and the two-way docking device includes a left shell and a right shell coaxially fixed together. Discharge ports are respectively arranged at the ends of the left shell and the right shell. The interior of the left shell is separated into a first treatment chamber and a first collection chamber by a first filter screen, and the interior of the right shell is separated into a second treatment chamber and a second collection chamber by a second filter screen. The first treatment chamber is communicated with the lower liquid storage chamber through a first one-way valve, and the first one-way valve only allows liquid to flow from the lower liquid storage chamber to the first treatment chamber. The second treatment chamber is communicated with the upper liquid storage chamber through a second one-way valve, and the second one-way valve only allows liquid to flow from the upper liquid storage chamber to the second treatment chamber. The first collection chamber is communicated with the second treatment chamber through a liquid delivery pipe, and a third one-way valve that only allows liquid to flow from the first collection chamber to the second treatment chamber is installed on the liquid delivery pipe. The second collection chamber discharges liquid through a drain pipe, and an extrusion device is arranged between the left shell and the right shell. The extrusion device includes two extrusion heads connected together by a fixed rod, and the two extrusion heads are respectively inserted into the left shell and the right shell to press-filter the coal slime water located in the left shell and the right shell. A reciprocating push rod for pushing the extrusion head to move left and right is fixedly installed on the left shell.

[0015] Preferably, sealing pistons for closing the discharge ports are respectively installed in the left shell and the right shell, and the rear ends of the sealing pistons are fixedly connected with the left shell or the right shell through return springs.

[0016] Preferably, a cleaning device for cleaning the first filter screen and the second filter screen is arranged on the extrusion device. The cleaning device includes a connecting rod coaxially installed with the extrusion head, and a rotating disk inserted into the first treatment chamber or the second treatment chamber is arranged at the end of the connecting rod. Cleaning teeth for scraping the inner walls of the first filter screen or the second filter screen are integrally formed on the rotating disk.

[0017] Preferably, a worm gear is fixedly installed on the connecting rod, and a rack is installed between the left shell and the right shell. A worm meshing with the worm gear is rotatably installed on the fixed rod, and a driven wheel is coaxially installed on the worm.

[0018] Preferably, lower stirring frames for stirring the coal slime water and scraping the intermediate filter membrane are respectively installed in the upper liquid storage chamber and the lower liquid storage chamber corresponding to the main rotating shaft. Upper paddle blades for stirring the coal slime water are fixedly installed on the upper stirring frames, and lower paddle blades for stirring the coal slime water are fixedly installed on the lower stirring frames. Maintenance manholes for convenient maintenance are respectively arranged at the positions of the treatment tank corresponding to the upper liquid storage chamber and the lower liquid storage chamber.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] A slime water treatment device for coal washing and processing proposed by the present invention can utilize the cooperation of a stirring device and a diversion channel to achieve sufficient mixing of reagents. During the mixing process, it can automatically maintain the water level and continuously treat slime water. It can also utilize the cooperation of an extrusion device and a two-way docking device to achieve efficient separation of slime, with good separation effect, reliable operation of the equipment, and easy cleaning and maintenance. It solves the problems of uneven mixing of reagents and poor slime separation effect in existing slime water treatment equipment, and can effectively improve the treatment effect of slime water. Brief Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the present invention;

[0022] Figure 2 It is a side view of the structure of the present invention;

[0023] Figure 3 It is a cross-sectional view of the treatment tank and the stirring device in the present invention;

[0024] Figure 4 It is an internal cross-sectional view of the treatment tank in the present invention;

[0025] Figure 5 It is a schematic structural diagram of the stirring device in the present invention;

[0026] Figure 6 It is an installation schematic diagram of the extrusion device and the two-way docking device in the present invention;

[0027] Figure 7 It is a sectional view of the extrusion device and the two-way docking device in the present invention;

[0028] Figure 8 It is a schematic structural diagram of the extrusion device in the present invention;

[0029] Figure 9 It is a schematic structural diagram of the cleaning device in the present invention.

[0030] In the figure: 1, processing tank; 2, cleaning device; 201, worm gear; 202, connecting rod; 203, cleaning tooth; 204, rotating disk; 3, extrusion device; 301, extrusion head; 302, fixed rod; 303, driven wheel; 304, worm; 4, two-way docking device; 401, first processing chamber; 402, first collection chamber; 403, first filter screen; 404, right housing; 405, second collection chamber; 406, second filter screen; 407, drain pipe; 408, second processing chamber; 409, slag discharge port; 410, return spring; 411, sealing piston; 412, third one-way valve; 413, liquid delivery pipe; 414, left housing; 5, stirring device; 501, main rotating shaft; 502, liquid spraying head; 503, liquid supply pipe; 504, upper stirring frame; 505, upper paddle; 506, lower stirring frame; 507, lower paddle; 508, hollow docking pipe; 6, medicine supply pump; 7, diversion pipe; 8, maintenance manhole; 9, liquid level sensor; 10, first one-way valve; 11, second one-way valve; 12, reciprocating push rod; 13, rack; 14, main motor; 15, belt pulley; 16, water supply pump; 17, exhaust port; 18, annular liquid delivery sleeve; 19, gas collection chamber; 20, gas-liquid separation membrane; 21, lower isolation ring; 22, diversion flow channel; 23, bottom partition board; 24, upper liquid storage chamber; 25, intermediate filter membrane; 26, lower liquid storage chamber; 27, controller; 28, upper isolation ring. Detailed implementation mode

[0031] In order to clearly and completely describe the purpose and technical solution of the present invention, and to more clearly explain its advantages, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0032] Embodiment 1: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5, the present invention provides a slime water treatment device for coal washing and processing, including a treatment tank 1 and a stirring device 5. At least three lower isolation rings 21 are concentrically arranged inside the treatment tank 1, and upper isolation rings 28 are arranged at positions concentric with and staggered from the lower isolation rings 21 inside the treatment tank 1. The bottom of the lower isolation ring 21 is sealed with the treatment tank 1, and the top of the lower isolation ring 21 is not sealed with the treatment tank 1. The top height of the upper isolation ring 28 is higher than the top height of the lower isolation ring 21, and the bottom of the upper isolation ring 28 is sealed with the treatment tank 1. Concentric water troughs are respectively formed between adjacent upper isolation rings 28 and lower isolation rings 21, and a diversion flow channel 22 composed of series-connected concentric water troughs is jointly formed between the upper isolation ring 28 and the lower isolation ring 21. That is to say, the upper ends or lower ends of the same concentric water troughs can be connected together to jointly form the diversion flow channel 22. When injecting slime water into the diversion flow channel 22, the liquid level of the slime water needs to be higher than the top of the lower isolation ring 21, so that the slime water in each concentric water trough can be connected together, and thus can move along the diversion flow channel 22.

[0033] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The stirring device 5 includes a main rotating shaft 501 concentrically arranged with the lower isolation ring 21, and the main rotating shaft 501 is rotatably installed with the treatment tank 1. A main motor 14 for driving the main rotating shaft 501 to rotate is installed on the treatment tank 1. An upper stirring frame 504 that rotates and stirs by inserting into each concentric water trough is fixedly installed on the main rotating shaft 501. The inlet of the diversion flow channel 22 is the concentric water trough closest to the main rotating shaft 501, and the outlet of the diversion flow channel 22 is the concentric water trough farthest from the main rotating shaft 501. An external slime water is injected into the inlet of the diversion flow channel 22 through a water supply pump 16 on the treatment tank 1, and an external reagent is injected into the inlet of the diversion flow channel 22 through a reagent supply pump 6 on the treatment tank 1. A hollow docking pipe 508 is concentrically arranged inside the main rotating shaft 501, and an annular liquid delivery sleeve 18 that is rotatably and sealingly connected to the inlet end of the hollow docking pipe 508 is fixedly installed inside the treatment tank 1, and the annular liquid delivery sleeve 18 is communicated with the output end of the reagent supply pump 6. The upper stirring frame 504 is provided with a liquid delivery pipe 503 communicated with the hollow docking pipe 508 at the corresponding concentric water trough, and the reagent is sprayed into the diversion flow channel 22 through a liquid spraying head 502 on the liquid delivery pipe 503. A belt pulley 15 is driven by the output end of the main motor 14, and the belt pulley 15 drives the water supply pump 16 and the reagent supply pump 6 to rotate through a toothed belt respectively. A controller 27 is fixedly installed at the front end of the treatment tank 1, and a liquid level sensor 9 for detecting the liquid level in the diversion flow channel 22 is installed in the diversion flow channel 22. The controller 27 is electrically connected to the liquid level sensor 9 and the main motor 14 respectively.

[0034] When the designed slime water treatment device in this embodiment is in use, first turn on the controller 27. When the controller 27 detects through the liquid level sensor 9 that the liquid level in the diversion channel 22 is higher than the preset value, the controller 27 turns off the main motor 14. When the liquid level sensor 9 detects that the liquid level in the diversion channel 22 is lower than the preset value, the controller 27 turns on the main motor 14. At this time, the stirring device 5 will stir the slime water located in the diversion channel 22 driven by the main motor 14. At the same time, the main motor 14 drives the chemical dosing pump 6 to send the required chemicals into the diversion channel 22. At the same time, the main motor 14 drives the water supply pump 16 to inject the slime water into the diversion channel 22, so that the slime water can be quickly mixed with the chemicals under the stirring of the stirring device 5. The chemicals can contain flocculants, pH regulators, filter aids, coagulants, defoamers, etc. according to needs, such as aluminum sulfate, ferric chloride, polyacrylamide, sodium hydroxide, activated carbon, etc. The composition and concentration of the chemicals can be adjusted by relevant operators according to actual usage needs. And when the main motor 14 is working, since both the chemicals and the slime water are fed from the inlet of the diversion channel 22, the slime water will move outwards along the adjacent concentric water channels in the diversion channel 22 in turn until it reaches the outlet of the diversion channel 22 and then is discharged. Since the slime water can only move along the adjacent concentric water channels during this process, the newly incoming slime water will surely be discharged from the diversion channel 22 later, so that there is enough time to mix the newly fed slime water with the newly fed chemicals through the stirring device 5. And the chemicals of the present invention can be sent into the annular liquid delivery sleeve 18 through the chemical dosing pump 6, then sent into the hollow docking pipe 508 by the annular liquid delivery sleeve 18, and then sent into each liquid delivery pipe 503 through the hollow docking pipe 508. Then the chemical liquid delivery pipe 413 sends the chemicals into each concentric water channel, and during this process, the spray nozzles 502 located in different concentric water channels can be set to have matching flow rates to make the chemicals disperse into the slime water more quickly, thereby accelerating the mixing speed and mixing uniformity of the slime water and the chemicals. And through the drive of the main motor 14, the feeding of the slime water, the feeding of the chemicals, and the orderly mixing of the slime water and the chemicals can be realized at the same time, greatly simplifying the structure of the equipment. It solves the problems of uneven mixing of chemicals and poor slime separation effect of the existing slime water treatment equipment, and can effectively improve the treatment effect of slime water.

[0035] Embodiment 2: Please refer to Figure 2 and Figure 3, on the basis of the first embodiment, a gas-liquid separation membrane 20 is fixedly installed at the top of the diversion channel 22, and a gas collection chamber 19 is formed between the gas-liquid separation membrane 20 and the top of the treatment tank 1. An exhaust port 17 communicating with the gas collection chamber 19 is installed at the top of the treatment tank 1. The gas-liquid separation membrane 20 is used to separate the gas located in the diversion channel 22 into the gas collection chamber 19 and then discharge it through the exhaust port 17. Since the slime water fed into the diversion channel 22 may contain bubbles, and gas may be generated after the slime water reacts with the reagent, these gases may affect the mixing speed of the reagent. Therefore, the gas located in the diversion channel 22 can be discharged through the gas-liquid separation membrane 20. In order to avoid affecting the separation efficiency of the gas-liquid separation membrane 20, the liquid level of the slime water located in the diversion channel 22 should be at least ten centimeters lower than the installation position of the gas-liquid separation membrane 20. At the same time, the exhaust port 17 can be connected to an external air pump, so as to use the external air pump to extract the gas located in the gas collection chamber 19 and the top of the diversion channel 22, which can further improve the mixing speed of the slime water and the reagent. Further solve the problems of uneven mixing of reagents and poor slime separation effect in the existing slime water treatment equipment, and can effectively improve the treatment effect of slime water.

[0036] Embodiment Three: Please refer to Figures 1 to 8, on the basis of Embodiment 2, a bottom partition 23 is fixedly installed at the bottom of the diversion channel 22, and the bottom partition 23 and the bottom of the treatment tank 1 are separated by an intermediate filter membrane 25 into an upper liquid storage chamber 24 and a lower liquid storage chamber 26 arranged from top to bottom. The lower liquid storage chamber 26 is communicated with the outlet of the diversion channel 22 through a diversion pipe 7. A two-way docking device 4 is arranged at the bottom of the treatment tank 1, and the two-way docking device 4 includes a left shell 414 and a right shell 404 fixedly coaxially together. Discharge ports 409 are respectively arranged at the ends of the left shell 414 and the right shell 404. The interior of the left shell 414 is separated into a first treatment chamber 401 and a first collection chamber 402 by a first filter screen 403, and the interior of the right shell 404 is separated into a second treatment chamber 408 and a second collection chamber 405 by a second filter screen 406. The first treatment chamber 401 is communicated with the lower liquid storage chamber 26 through a first one-way valve 10, and the first one-way valve 10 only allows liquid to flow from the lower liquid storage chamber 26 to the first treatment chamber 401. The second treatment chamber 408 is communicated with the upper liquid storage chamber 24 through a second one-way valve 11, and the second one-way valve 11 only allows liquid to flow from the upper liquid storage chamber 24 to the second treatment chamber 408. The first collection chamber 402 is communicated with the second treatment chamber 408 through a liquid delivery pipe 413, and a third one-way valve 412 that only allows liquid to flow from the first collection chamber 402 to the second treatment chamber 408 is installed on the liquid delivery pipe 413. The second collection chamber 405 discharges liquid through a drain pipe 407. An extrusion device 3 is arranged between the left shell 414 and the right shell 404. The extrusion device 3 includes two extrusion heads 301 connected together by a fixing rod 302. The two extrusion heads 301 are respectively inserted into the left shell 414 and the right shell 404 to press-filter the coal slime water located in the left shell 414 and the right shell 404. A reciprocating push rod 12 for pushing the extrusion head 301 to move left and right is fixedly installed on the left shell 414. Closing pistons 411 for closing the discharge ports 409 are respectively installed in the left shell 414 and the right shell 404, and the rear ends of the closing pistons 411 are fixedly connected to the left shell 414 or the right shell 404 through return springs 410. In this embodiment, the intermediate filter membrane 25 has the same filtering effect as the first filter screen 403, and the second filter screen 406 has a better filtering effect than the first filter screen 403. When the lower liquid storage chamber 26 is filled with coal slime water, the water flow will pass through the first filter screen 403 and enter the upper liquid storage chamber 24. The first treatment chamber 401 is used to treat the coal slime water located in the lower liquid storage chamber 26, while the second treatment chamber 408 is used to treat the coal slime water located in the first collection chamber 402 and the upper liquid storage chamber 24. When in use, the extrusion device 3 can be pushed to move left and right through the reciprocating push rod 12, and the reciprocating push rod 12 can be a hydraulic push rod or an electric push rod.Specifically, the extrusion device 3 first moves to the left, so that the extrusion head 301 starts to extrude the slime water located in the first treatment chamber 401. After the slime water in the first treatment chamber 401 is extruded, the solid substances therein will be difficult to pass through the first filter screen 403 and thus remain in the first treatment chamber 401. At the same time, the liquid substances therein will pass through the first filter screen 403 and enter the first collection chamber 402. Subsequently, the liquid in the first collection chamber 402 will enter the second treatment chamber 408 through the discharge flow pipe 413 and the third one-way valve 412. At the same time, since the extrusion head 301 in the second treatment chamber 408 is pulled to the left, the internal space of the second treatment chamber 408 is enlarged, so that the liquid in the upper liquid storage chamber 24 can be sucked into the second treatment chamber 408 through the second one-way valve 11. The slime water in the first treatment chamber 401 cannot reverse through the first one-way valve 10 and enter the lower liquid storage chamber 26. When the extrusion head 301 continues to move to the left, the closing piston 411 in the left housing 414 will move to the left under the powerful hydraulic pressure, so as to open the slag discharge port 409 in the first treatment chamber 401, so that the filtered coal slime slag can be discharged through the slag discharge port 409. It should be noted that since the content of coal slime slag in the slime water may be small, enough coal slime slag cannot be accumulated in the first treatment chamber 401 and the second treatment chamber 408 for discharge after a single filtration, which will cause a large amount of liquid to be discharged from the slag discharge port 409 during discharge. Therefore, the filtration process can be further divided into slag collection filtration and slag discharge filtration. During the slag collection filtration process, the stroke of the extrusion head 301 in the first treatment chamber 401 and the second treatment chamber 408 is short and not enough to push the closing piston 411 to move. During the slag discharge filtration process, the extrusion head 301 will move to the maximum stroke to squeeze the closing piston 411 to move so that the slag discharge port 409 can discharge slag normally. The operator can arrange the proportion of the slag collection filtration and the slag discharge filtration according to the actual use needs, so as to better realize the filtration. The reciprocating push rod 12 can also be electrically connected to the controller 27, so as to use the controller 27 to program the movement of the reciprocating push rod 12. After the extrusion device 3 finishes moving to the left, it will move to the right under the drive of the reciprocating push rod 12. At this time, the second treatment chamber 408 enters the filtration process. During the filtration process of the second treatment chamber 408, the liquid will pass through the second filter screen 406 and then enter the second collection chamber 405, and then be discharged from the drain pipe 407. The water discharged from the drain pipe 407 can be reused in the coal washing process.Meanwhile, as the extrusion head 301 moves to the right, a suction force will be generated in the first treatment chamber 401, causing the slime water in the lower liquid storage chamber 26 to enter the first treatment chamber 401. And since the closing piston 411 in the first treatment chamber 401 loses the extrusion force provided by the extrusion head 301, it will close the slag discharge port 409 again under the push of the return spring 410, thus preventing the slime water in the first treatment chamber 401 from discharging from the slag discharge port 409. When the extrusion head 301 moves to the left again, the closing piston 411 in the second treatment chamber 408 will also close the slag discharge port 409 in the second treatment chamber 408, so that under the push of the reciprocating push rod 12, the slime water can be continuously filtered and treated cleanly. The filtering effect only depends on the filtering effects of the first filter screen 403 and the second filter screen 406. For better filtering, the first filter screen 403 and the second filter screen 406 can also be replaced with commonly used filter membranes on the market, such as ceramic filter membranes or polymer filter membranes, etc. Further, the slime water treatment device designed in this embodiment can be connected in series in multiple stages to achieve more refined filtering. Therefore, the slime water treatment device designed in this embodiment has a good slime water treatment effect. It further solves the problems of uneven mixing of medicaments and poor slime separation effect in the existing slime water treatment equipment, and can effectively improve the treatment effect of slime water.

[0037] Embodiment 4: Please refer to Figures 1 to 9, on the basis of Embodiment III, a cleaning device 2 for cleaning the first filter screen 403 and the second filter screen 406 is provided on the extrusion device 3. The cleaning device 2 includes a connecting rod 202 coaxially installed with the extrusion head 301. The end of the connecting rod 202 is provided with a rotating disk 204 inserted into the first processing chamber 401 or the second processing chamber 408. The rotating disk 204 is integrally formed with cleaning teeth 203 for scraping the inner wall of the first filter screen 403 or the second filter screen 406. A worm gear 201 is fixedly installed on the connecting rod 202, and a rack 13 is installed between the left housing 414 and the right housing 404. A worm 304 meshed with the worm gear 201 is rotatably installed on the fixed rod 302, and a driven wheel 303 is coaxially installed on the worm 304. When the reciprocating push rod 12 drives the extrusion device 3 to move left and right, it will also drive the driven wheel 303 to move left and right along the rack 13. During the movement of the driven wheel 303, it will drive the worm 304 to rotate. Subsequently, the worm 304 will drive the worm gear 201 to rotate, and the worm gear 201 will drive the rotating disk 204 to rotate through the connecting rod 202. The rotating disk 204 can drive the cleaning teeth 203 to move so as to scrape the inner side of the first filter screen 403 or the second filter screen 406, thus avoiding the blockage of the first filter screen 403 and the second filter screen 406, and ensuring the pressure filtration effect. It further solves the problems of uneven mixing of chemicals and poor coal slime separation effect in existing coal slime water treatment equipment, and can effectively improve the treatment effect of coal slime water.

[0038] Embodiment V: Please refer to Figure 3 , Figure 4 and Figure 5 , on the basis of Embodiment IV, lower stirring frames 506 for stirring the coal slime water and scraping the intermediate filter membrane 25 are respectively installed in the corresponding upper liquid storage chamber 24 and lower liquid storage chamber 26 on the main rotating shaft 501. Upper paddle blades 505 for stirring the coal slime water are fixedly installed on the upper stirring frame 504, and lower paddle blades 507 for stirring the coal slime water are fixedly installed on the lower stirring frame 506. Maintenance manholes 8 for convenient maintenance are respectively provided on the treatment tank 1 corresponding to the upper liquid storage chamber 24 and the lower liquid storage chamber 26. The agitation of the lower stirring frame 506 can prevent the coal slime water in the upper liquid storage chamber 24 and the lower liquid storage chamber 26 from precipitating, avoiding the siltation and even blockage of the intermediate filter membrane 25, thereby improving the reliability of the equipment. Moreover, the setting of the upper paddle blades 505 and the lower paddle blades 507 can also improve the mixing effect of the coal slime water. The maintenance manholes 8 can also facilitate the cleaning of the interiors of the upper liquid storage chamber 24 and the lower liquid storage chamber 26, thus facilitating the use. It further solves the problems of uneven mixing of chemicals and poor coal slime separation effect in existing coal slime water treatment equipment, and can effectively improve the treatment effect of coal slime water.

[0039] Embodiment Six: On the basis of Embodiment Five, the present invention further provides a method for using a coal slime water treatment device for coal washing and processing, including the following steps:

[0040] Step 1: First, the operator turns on the processing program in the controller 27. At this time, the controller 27 will detect the coal slime water level in the diversion channel 22 through the liquid level sensor 9, and automatically adjust the liquid level in the diversion channel 22 to a preset height through the main motor 14 and maintain it at this height. At the same time, it will also evenly mix the medicament into the coal slime water in the diversion channel 22 through the stirring device 5 and the chemical feeding pump 6;

[0041] Step 2: When the liquid level in the diversion channel 22 stabilizes at the specified height, the controller 27 starts to operate the reciprocating push rod 12. The reciprocating push rod 12 will drive the extrusion device 3 to continuously press-filter the coal slime water in the double docking device 4, so as to separate the coal slime water into reusable water and coal slime slag;

[0042] Step 3: During the process of coal slime water treatment, the operator can change the composition and concentration of the medicament provided by the chemical feeding pump 6 according to the differences in conditions such as the coal slime content in the coal slime water supplied to the diversion channel 22, and at the same time adjust the working mode of the reciprocating push rod 12, so as to achieve a better coal slime water treatment effect.

[0043] Although the above describes the illustrative specific embodiments of the present application for the convenience of those skilled in the art to understand the present application, the present application is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, all applications and creations using the concept of the present application are within the scope of protection.

Claims

1. A slime water treatment device for coal washing and processing, characterized in that, Comprising: A treatment tank (1), inside which at least three lower isolation rings (21) are concentrically arranged, and upper isolation rings (28) are arranged at positions concentric and staggered with the lower isolation rings (21) inside the treatment tank (1). The bottom of the lower isolation ring (21) is sealed with the treatment tank (1), and the top of the lower isolation ring (21) is not sealed with the treatment tank (1). The top height of the upper isolation ring (28) is higher than the top height of the lower isolation ring (21), and the bottom of the upper isolation ring (28) is sealed with the treatment tank (1). Concentric water troughs are respectively formed between adjacent upper isolation rings (28) and lower isolation rings (21), and a diversion flow channel (22) composed of series-connected concentric water troughs is jointly formed between the upper isolation ring (28) and the lower isolation ring (21); A stirring device (5), the stirring device (5) includes a main rotating shaft (501) that is concentrically arranged with the lower isolation ring (21) and rotatably installed with the treatment tank (1), and an upper stirring frame (504) that is fixedly installed on the main rotating shaft (501) and rotates and stirs in each concentric water trough is provided. An upper paddle (505) for stirring coal slime water is fixedly installed on the upper stirring frame (504). The inlet of the diversion flow channel (22) is the concentric water trough closest to the main rotating shaft (501) and is used for injecting coal slime water and medicament provided by the outside, and the outlet of the diversion flow channel (22) is the concentric water trough farthest from the main rotating shaft (501). An external medicament is injected into the inlet of the diversion flow channel (22) through a medicine supply pump (6) on the treatment tank (1). A hollow docking pipe (508) is concentrically arranged inside the main rotating shaft (501), and an annular liquid supply sleeve (18) that is rotatably sealed with the inlet end of the hollow docking pipe (508) is fixedly installed inside the treatment tank (1), and the annular liquid supply sleeve (18) is communicated with the output end of the medicine supply pump (6). The upper stirring frame (504) is provided with a liquid supply pipe (503) communicated with the hollow docking pipe (508) at the corresponding concentric water trough, and the medicament is sprayed into the diversion flow channel (22) through a liquid spraying head (502) on the liquid supply pipe (503). A main motor (14) for driving the main rotating shaft (501) to rotate is installed on the treatment tank (1), and external coal slime water is injected into the inlet of the diversion flow channel (22) through a water supply pump (16) on the treatment tank (1). The output end of the main motor (14) drives a belt pulley (15), and the belt pulley (15) drives the water supply pump (16) and the medicine supply pump (6) to rotate respectively through a toothed belt.

2. The coal slime water treatment device for coal washing and processing according to claim 1, wherein: A gas-liquid separation membrane (20) is fixedly installed at the top of the diversion flow channel (22), and a gas collection cavity (19) is formed between the gas-liquid separation membrane (20) and the top of the treatment tank (1). An exhaust port (17) communicated with the gas collection cavity (19) is installed at the top of the treatment tank (1). The gas-liquid separation membrane (20) is used to separate the gas located in the diversion flow channel (22) into the gas collection cavity (19) and then discharge it through the exhaust port (17).

3. The coal slime water treatment device for coal washing and processing according to claim 1, characterized in that: A controller (27) is fixedly installed at the front end of the treatment tank (1), and a liquid level sensor (9) for detecting the liquid level in the diversion channel (22) is installed in the diversion channel (22). The controller (27) is electrically connected to the liquid level sensor (9) and the main motor (14) respectively.

4. A slime water treatment device for coal washing and processing according to claim 1, characterized in that: A bottom partition plate (23) is fixedly installed at the bottom of the diversion channel (22), and the space between the bottom partition plate (23) and the bottom of the treatment tank (1) is separated by an intermediate filter membrane (25) into an upper liquid storage cavity (24) and a lower liquid storage cavity (26) arranged from top to bottom. The lower liquid storage cavity (26) is communicated with the outlet of the diversion channel (22) through a diversion pipe (7). A two-way docking device (4) is arranged at the bottom of the treatment tank (1), and the two-way docking device (4) includes a left shell (414) and a right shell (404) fixedly coaxially together. Discharge ports (409) are respectively arranged at the ends of the left shell (414) and the right shell (404). The interior of the left shell (414) is separated into a first treatment cavity (401) and a first collection cavity (402) by a first filter screen (403), and the interior of the right shell (404) is separated into a second treatment cavity (408) and a second collection cavity (405) by a second filter screen (406). The first treatment cavity (401) is communicated with the lower liquid storage cavity (26) through a first one-way valve (10), and the first one-way valve (10) only allows liquid to flow from the lower liquid storage cavity (26) to the first treatment cavity (401). The second treatment cavity (408) is communicated with the upper liquid storage cavity (24) through a second one-way valve (11), and the second one-way valve (11) only allows liquid to flow from the upper liquid storage cavity (24) to the second treatment cavity (408). The first collection cavity (402) is communicated with the second treatment cavity (408) through a liquid delivery pipe (413), and a third one-way valve (412) that only allows liquid to flow from the first collection cavity (402) to the second treatment cavity (408) is installed on the liquid delivery pipe (413). The second collection cavity (405) discharges liquid through a drain pipe (407), and an extrusion device (3) is arranged between the left shell (414) and the right shell (404). The extrusion device (3) includes two extrusion heads (301) connected together by a fixed rod (302). The two extrusion heads (301) are respectively inserted into the left shell (414) and the right shell (404) to press-filter the slime water located in the left shell (414) and the right shell (404). A reciprocating push rod (12) for pushing the extrusion head (301) to move left and right is fixedly installed on the left shell (414).

5. The coal slime water treatment device for coal washing and processing according to claim 4, characterized in that: Sealing pistons (411) for closing the discharge ports (409) are respectively installed in the left shell (414) and the right shell (404), and the rear ends of the sealing pistons (411) are fixedly connected to the left shell (414) or the right shell (404) through return springs (410).

6. The coal slime water treatment device for coal washing and processing according to claim 4, wherein: A cleaning device (2) for cleaning the first filter screen (403) and the second filter screen (406) is provided on the extrusion device (3). The cleaning device (2) includes a connecting rod (202) coaxially installed with the extrusion head (301). A rotating disk (204) inserted into the first treatment chamber (401) or the second treatment chamber (408) is provided at the end of the connecting rod (202). Cleaning teeth (203) for scraping the inner wall of the first filter screen (403) or the second filter screen (406) are integrally formed on the rotating disk (204).

7. The coal slime water treatment device for coal washing and processing according to claim 6, characterized in that: A worm gear (201) is fixedly installed on the connecting rod (202). A rack (13) is installed between the left housing (414) and the right housing (404). A worm (304) meshed with the worm gear (201) is rotatably installed on the fixed rod (302). A driven wheel (303) is coaxially installed on the worm (304).

8. A slime water treatment device for coal washing and processing according to claim 4, characterized in that: Lower stirring frames (506) for stirring the coal slime water and scraping the intermediate filter membrane (25) are respectively installed in the corresponding upper liquid storage chamber (24) and lower liquid storage chamber (26) of the main rotating shaft (501). Lower paddle blades (507) for stirring the coal slime water are fixedly installed on the lower stirring frames (506). Maintenance manholes (8) for convenient maintenance are respectively provided at the positions corresponding to the upper liquid storage chamber (24) and the lower liquid storage chamber (26) of the treatment tank (1).

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