Slime water treatment device for coal washing and processing

Abstract

The invention relates to the technical field of coal mine treatment, in particular to a slime water treatment device for coal washing and processing, which comprises a treatment tank, at least three lower isolating rings are concentrically arranged in the treatment tank, and upper isolating rings are arranged in the treatment tank at positions concentric and staggered with the lower isolating rings. The bottom of the lower isolating ring is sealed with the treatment tank, and the top of the lower isolating ring is not sealed with the treatment tank. According to the slime water treatment device for coal washing and processing, full mixing of chemicals can be achieved through cooperation of the stirring device and the flow guide flow channel, the water level can be automatically maintained in the mixing process, and slime water can be continuously treated; and efficient separation of the coal slime can be achieved through cooperation of the extrusion device and the two-way butt joint device, and the separation effect is good. The problems that an existing coal slime water treatment device is uneven in agent mixing and poor in coal slime separation effect are solved, and the coal slime water treatment effect can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine processing, in particular to a coal slime water treatment device for coal washing and selection. Background Art

[0002] Coal slime water is wastewater containing a large amount of coal powder and soil generated during the coal washing process. Since a large amount of water is used in the coal washing process, 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 lot of water resources.

[0003] In the existing coal slime water treatment process, the coal slime water is first stored in a sewage pool, and then corresponding reagents are added to the coal slime water to adjust the pH value and other parameters of the coal slime water. Flocculants are also added to make the coal slime in the coal slime water easier to precipitate. The coal slime water is then passed through a filter press, a cyclone and other equipment to separate the coal slime and water, thereby recycling the water in the coal slime water.

[0004] However, there are a lot of problems in the existing treatment process. First, if the reagent is added directly to the equipment, the newly added reagent and coal slime water are not fully mixed before being transported to the next level of treatment process due to the unreasonable design of the existing equipment, resulting in poor reagent use effect. If multiple reagent mixing devices are used in parallel for alternating supply or in series, it will cost a lot. If a separate mixing tank is used for mixing, a large area will be required. Secondly, the existing equipment for separating coal slime water, such as filter presses and cyclones, requires the coal slime particles to be within a suitable range to obtain a better separation effect, so it is difficult to meet the existing usage needs.

[0005] Therefore, we need a coal slime water treatment device for coal washing and processing to solve the problems of uneven reagent mixing and poor coal slime separation effect in existing coal slime water treatment equipment, which 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 reagent mixing and poor coal slime separation effect in 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: 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; 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.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] Preferably, a bottom partition is fixedly installed at the bottom of the diversion channel, and the bottom partition and the bottom of the processing tank are divided into an upper liquid storage chamber and a lower liquid storage chamber arranged from top to bottom by an intermediate filter membrane, and the lower liquid storage chamber is connected to the outlet of the diversion channel through a diversion pipe, and a two-way docking device is provided at the bottom of the processing tank, and the two-way docking device includes a left shell and a right shell coaxially fixed together, and the ends of the left shell and the right shell are respectively provided with slag discharge ports, the interior of the left shell is divided into a first processing chamber and a first collecting chamber by a first filter net, and the interior of the right shell is divided into a second processing chamber and a second collecting chamber by a second filter net, the first processing chamber is connected to the lower liquid storage chamber through a first one-way valve, and the first one-way valve only allows liquid The liquid flows from the lower liquid storage chamber to the first processing chamber, the second processing chamber is connected to the upper liquid storage chamber through the second one-way valve, and the second one-way valve only allows liquid to flow from the upper liquid storage chamber to the second processing chamber, the first collecting chamber is connected to the second processing chamber through the flow delivery pipe, and the flow delivery pipe is equipped with a third one-way valve that only allows liquid to flow from the first collecting chamber to the second processing chamber, the second collecting chamber discharges liquid through the discharge 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, the two extrusion heads are respectively inserted into the left shell and the right shell to filter the coal slurry water located in the left shell and the right shell, and a reciprocating push rod for pushing the extrusion head to move left and right is fixedly installed on the left shell.

[0013] Preferably, a closing piston for closing the slag discharge port is installed in the left shell and the right shell respectively, and the rear end of the closing piston is fixedly connected to the left shell or the right shell via a return spring.

[0014] Preferably, the extrusion device is provided with a cleaning device for cleaning the first filter screen and the second filter screen, the cleaning device includes a connecting rod coaxially installed with the extrusion head, and the end of the connecting rod is provided with a rotating disk inserted into the first processing chamber or the second processing chamber, and the rotating disk is integrally formed with cleaning teeth for scraping the inner wall of the first filter screen or the second filter screen.

[0015] Preferably, a worm wheel is fixedly mounted on the connecting rod, and a rack is installed between the left shell and the right shell, a worm meshingly connected to the worm wheel is rotatably mounted on the fixed rod, and a driven wheel is coaxially mounted on the worm.

[0016] Preferably, the main rotating shaft is respectively equipped with a lower stirring frame for stirring the coal slurry water and scraping the intermediate filter membrane in the corresponding upper liquid storage chamber and lower liquid storage chamber, the upper stirring frame is fixedly equipped with an upper paddle for stirring the coal slurry water, and the lower stirring frame is fixedly equipped with a lower paddle for stirring the coal slurry water, and the treatment tank is respectively provided with a maintenance manhole for convenient maintenance at the corresponding upper liquid storage chamber and lower liquid storage chamber.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The invention proposes a coal slime water treatment device for coal washing and processing, which can fully mix the reagents by using the cooperation of the stirring device and the diversion channel, and can automatically maintain the water level and continuously treat the coal slime water during the mixing process, and can also use the cooperation of the extrusion device and the two-way docking device to achieve efficient separation of the coal slime, and the separation effect is good, the equipment runs reliably, and is easy to clean and maintain. The problems of uneven reagent mixing and poor coal slime separation effect of the existing coal slime water treatment equipment are solved, and the treatment effect of the coal slime water can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a side view of the structure of the present invention; Figure 3 A cross-sectional view of a treatment tank and a stirring device in the present invention; Figure 4 is an internal cross-sectional view of the processing tank in the present invention; Figure 5 It is a schematic diagram of the structure of the stirring device in the present invention; Figure 6 It is a schematic diagram of the installation of the extrusion device and the bidirectional docking device in the present invention; Figure 7 It is a cross-sectional schematic diagram of the extrusion device and the bidirectional docking device in the present invention; Figure 8 It is a schematic diagram of the structure of the extrusion device in the present invention; Fig. 9 It is a schematic diagram of the structure of the cleaning device in the present invention.

[0019] In the figure: 1. treatment tank; 2. cleaning device; 201. worm gear; 202. connecting rod; 203. cleaning teeth; 204. rotating disk; 3. extrusion device; 301. extrusion head; 302. fixing rod; 303. driven wheel; 304. worm; 4. two-way docking device; 401. first treatment chamber; 402. first collection chamber; 403. first filter screen; 404. right shell; 405. second collection chamber; 406. second filter screen; 407. drain pipe; 408. second treatment chamber; 409. slag discharge port; 410. reset spring; 411. closing piston; 412. third one-way valve; 413. flow pipe; 414. left shell; 5. stirring device; 501. main shaft ; 502, liquid spray head; 503, liquid delivery pipe; 504, upper stirring frame; 505, upper paddle; 506, lower stirring frame; 507, lower paddle; 508, hollow butt joint; 6, drug supply pump; 7, guide 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, pulley; 16, water supply pump; 17, exhaust port; 18, annular liquid delivery sleeve; 19, gas collecting chamber; 20, gas-liquid separation membrane; 21, lower side isolation ring; 22, guide channel; 23, bottom partition; 24, upper liquid storage chamber; 25, middle filter membrane; 26, lower liquid storage chamber; 27, controller; 28, upper side isolation ring. DETAILED DESCRIPTION

[0020] In order to clearly and completely describe the purpose and technical solution of the present invention and to more clearly and clearly explain its advantages, the embodiments of the present invention are further described in detail in conjunction with 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, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The present invention provides a coal slime water treatment device for coal washing and processing, comprising a treatment tank 1 and a stirring device 5, wherein at least three lower isolating rings 21 are concentrically arranged inside the treatment tank 1, and upper isolating rings 28 are arranged inside the treatment tank 1 at positions concentric with and staggered with the lower isolating rings 21, the bottom of the lower isolating ring 21 is sealed with the treatment tank 1, and the top of the lower isolating ring 21 is not sealed with the treatment tank 1, the top height of the upper isolating ring 28 is higher than the top height of the lower isolating ring 21, and the bottom of the upper isolating ring 28 is in contact with the treatment tank 1. The concentric water grooves are respectively formed between the adjacent upper isolation rings 28 and the lower isolation rings 21, and the upper isolation rings 28 and the lower isolation rings 21 jointly form a guide channel 22 composed of concentric water grooves connected in series, that is to say, the upper ends or lower ends of the same concentric water grooves can be connected together to form the guide channel 22. When coal slurry water is injected into the guide channel 22, the liquid level of the coal slurry water needs to be higher than the top of the lower isolation ring 21, so that the coal slurry water in each concentric water groove can be connected together, so that it can move along the guide channel 22.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The stirring device 5 includes a main rotating shaft 501 which is arranged concentrically with the lower isolation ring 21, and the main rotating shaft 501 is rotatably installed with the processing tank 1, a main motor 14 for driving the main rotating shaft 501 to rotate is installed on the processing tank 1, and an upper stirring frame 504 which is inserted into each concentric water tank for rotation and stirring is fixedly installed on the main rotating shaft 501, the inlet of the diversion channel 22 is the concentric water tank closest to the main rotating shaft 501, and the outlet of the diversion channel 22 is the concentric water tank farthest from the main rotating shaft 501, the external coal slurry water is injected into the inlet of the diversion channel 22 by the water supply pump 16 on the processing tank 1, and the external agent is injected into the inlet of the diversion channel 22 by the drug supply pump 6 on the processing tank 1, a hollow butt pipe 508 is concentrically arranged in the main rotating shaft 501, and the processing tank 1 is fixedly installed with an annular liquid delivery sleeve 18 which is rotatably sealed and connected to the inlet end of the hollow butt pipe 508, and the annular liquid delivery sleeve 18 is connected to the output end of the drug supply pump 6. The upper stirring frame 504 is provided with a liquid delivery pipe 503 which is connected to the hollow butt pipe 508 at the corresponding concentric water tank, and the liquid delivery pipe 503 sprays the agent into the diversion channel 22 through the liquid spray head 502. The output end of the main motor 14 is driven by a pulley 15, and the pulley 15 drives the water supply pump 16 and the drug supply pump 6 to rotate respectively through a toothed belt. A controller 27 is fixedly installed at the front end of the processing 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.

[0023] When the coal slurry water treatment device designed in this embodiment is used, the controller 27 is first turned on. When the controller 27 detects that the liquid level in the diversion channel 22 is higher than the preset value through the liquid level sensor 9, 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 coal slurry water in the diversion channel 22 driven by the main motor 14. At the same time, the main motor 14 will drive the drug supply pump 6 to deliver the required drug into the diversion channel 22. At the same time, the main motor 14 will drive the water supply pump 16 to inject the coal slurry water into the diversion channel 22, so that the coal slurry water can be quickly mixed with the drug under the stirring of the stirring device 5, and the drug can be mixed with the drug as needed. The agent contains flocculants, pH regulators, filter aids, coagulants, defoaming agents, etc., such as aluminum sulfate, ferric chloride, polyacrylamide, sodium hydroxide, activated carbon, etc. The composition and concentration of the agent can be modulated by relevant operators according to actual usage needs, and when the main motor 14 is working, since the agent and the coal slurry water are both fed into the inlet of the diversion channel 22, the coal slurry water will move outward along the adjacent concentric water grooves in the diversion channel 22 in sequence until it moves to the outlet of the diversion channel 22, and then be discharged. Since the coal slurry water can only move along the adjacent concentric water grooves in the diversion channel 22 during this process, the newly-incoming coal slurry water will inevitably be discharged from the diversion channel 22 later, so that there is enough time to mix the newly-input coal slurry water with the newly-input agent through the stirring device 5. In addition, the agent of the present invention can be delivered into the annular liquid delivery sleeve 18 through the drug supply pump 6, and then delivered into the hollow butt joint 508 by the annular liquid delivery sleeve 18, and then delivered into each liquid delivery pipe 503 through the hollow butt joint 508, and then the agent is delivered into each concentric water tank by the flow pipe 413. In this process, the agent can be dispersed into the coal slurry water more quickly by setting the spray head 502 located in different concentric water tanks so that it has a matching flow rate, thereby accelerating the mixing speed and mixing uniformity of the coal slurry water and the agent. And the feeding of coal slurry water, the feeding of the agent, and the orderly mixing of coal slurry water and the agent can be realized at the same time by the drive of the main motor 14, which greatly simplifies the structure of the equipment. The problems of uneven agent mixing and poor coal slurry separation effect of the existing coal slurry water treatment equipment are solved, and the treatment effect of coal slurry water can be effectively improved.

[0024] Example 2: Please refer to Figure 2 and Figure 3On the basis of the first embodiment, a gas-liquid separation membrane 20 is fixedly installed on the top of the diversion flow channel 22, and a gas collecting chamber 19 is formed between the gas-liquid separation membrane 20 and the top of the processing tank 1. The top of the processing tank 1 is equipped with an exhaust port 17 connected to the gas collecting chamber 19. The gas-liquid separation membrane 20 is used to separate the gas in the diversion flow channel 22 into the gas collecting chamber 19 and then discharge it from the exhaust port 17. Since the coal slime water fed into the diversion flow channel 22 may contain bubbles, and the coal slime water may generate gas after reacting with the reagent, these gases The gas in the guide channel 22 may affect the mixing speed of the reagent, so the gas in the guide 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 coal slurry water level in the guide 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 vacuum pump, so that the gas located at the top of the gas collection cavity 19 and the guide channel 22 can be extracted by the external vacuum pump, so that the mixing speed of the coal slurry water and the reagent can be further improved. It further solves the problems of uneven reagent mixing and poor coal slurry separation effect of the existing coal slurry water treatment equipment, and can effectively improve the treatment effect of coal slurry water.

[0025] Example 3: Please refer to Figures 1 to 8On the basis of the second embodiment, 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 processing tank 1 are divided into an upper liquid storage chamber 24 and a lower liquid storage chamber 26 arranged from top to bottom by an intermediate filter membrane 25, and the lower liquid storage chamber 26 is connected to the outlet of the diversion channel 22 through a diversion pipe 7, and a two-way docking device 4 is provided at the bottom of the processing tank 1, and the two-way docking device 4 includes a left shell 414 and a right shell 404 coaxially fixed together, and the ends of the left shell 414 and the right shell 404 are respectively provided with a slag discharge port 409, the interior of the left shell 414 is divided into a first processing chamber 401 and a first collecting chamber 402 by a first filter net 403, and the interior of the right shell 404 is divided into a second processing chamber 408 and a second collecting chamber 405 by a second filter net 406, the first processing chamber 401 is connected to 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 The liquid storage chamber 26 flows to the first processing chamber 401, and the second processing chamber 408 is connected to the upper liquid storage chamber 24 through the 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 processing chamber 408. The first collecting chamber 402 is connected to the second processing chamber 408 through the flow delivery pipe 413, and the flow delivery pipe 413 is installed with a third one-way valve 412 that only allows liquid to flow from the first collecting chamber 402 to the second processing chamber 408. The second collecting chamber 405 discharges liquid through the discharge 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 fixing rod 302. The two extrusion heads 301 are respectively inserted into the left shell 414 and the right shell 404 to filter the coal slurry 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. The left housing 414 and the right housing 404 are respectively provided with a closing piston 411 for closing the slag discharge port 409, and the rear end of the closing piston 411 is fixedly connected to the left housing 414 or the right housing 404 through a return spring 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 slurry water, the water flow will pass through the first filter screen 403 and enter the upper liquid storage chamber 24. The first processing chamber 401 is used to process the coal slurry water in the lower liquid storage chamber 26, and the second processing chamber 408 is used to process the coal slurry water 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 by 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 squeeze the coal slurry water in the first processing chamber 401. After the coal slurry water in the first processing chamber 401 is squeezed, the solid matter in it will be difficult to pass through the first filter 403 and thus remain in the first processing chamber 401. At the same time, the liquid matter in it will pass through the first filter 403 and enter the first collecting chamber 402. Then, the liquid in the first collecting chamber 402 will enter the second processing chamber 401 through the discharge flow pipe 413 and the third one-way valve 412. The second processing chamber 408 is in the middle of the second processing chamber 408. At the same time, since the extrusion head 301 in the second processing chamber 408 is pulled to the left, the internal space of the second processing chamber 408 is expanded, so that the liquid in the upper liquid storage chamber 24 can be sucked into the second processing chamber 408 through the second one-way valve 11, while the coal slurry in the first processing chamber 401 cannot reversely pass through the first one-way valve 10 into the lower liquid storage chamber 26. When the extrusion head 301 continues to move to the left, the closed piston 411 in the left housing 414 will move to the left under the strong hydraulic pressure. The slag discharge port 409 in the first processing chamber 401 is opened, so that the coal sludge slag after the filter pressing can be discharged through the slag discharge port 409. It should be noted that since the coal sludge slag content in the coal sludge water may be relatively small, it is impossible to accumulate enough coal sludge slag in the first processing chamber 401 and the second processing chamber 408 for discharge after a single filter pressing, which will cause a large amount of liquid to be discharged from the slag discharge port 409 during discharge. Therefore, the filter pressing process can be further divided into slag collection filter pressing and slag discharge filter pressing. In the slag collection filter pressing process, the extrusion head 301 The stroke in the first processing chamber 401 and the second processing chamber 408 is short, which is not enough to push the closed piston 411 to move. In the slag discharge and filtration process, the extrusion head 301 will move to the maximum stroke to squeeze the closed piston 411 to make the slag discharge port 409 discharge slag normally. The operator can arrange the arrangement ratio of slag collection and slag discharge according to the actual use needs, so as to better achieve filtration. The reciprocating push rod 12 can also be electrically connected to the controller 27, so that the controller 27 can be used to programmatically control the movement of the reciprocating push rod 12. When the extrusion device 3 moves to the left, it will move to the right under the drive of the reciprocating push rod 12. At this time, the second processing chamber 408 enters the filtration process. In the filtration process of the second processing 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.At the same time, as the extrusion head 301 moves to the right, suction is generated in the first processing chamber 401, so that the coal slime water in the lower liquid storage chamber 26 enters the first processing chamber 401, and because the closing piston 411 in the first processing 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, thereby preventing the coal slime water in the first processing chamber 401 from being discharged from the slag discharge port 409. When the extrusion head 301 moves to the left again, the closing piston 411 in the second processing chamber 408 11 will also close the slag discharge port 409 located in the second processing chamber 408, so that under the push of the reciprocating push rod 12, the coal sludge water can be continuously filtered and cleaned. The effect of the filter pressing depends only on the filtering effect of the first filter 403 and the second filter 406. In order to better perform the filter pressing, the first filter 403 and the second filter 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 coal sludge water treatment device designed in this embodiment can be connected in multiple stages in series to achieve more refined filtration. Therefore, the coal sludge water treatment device designed in this embodiment has a good coal sludge water treatment effect. It further solves the problems of uneven reagent mixing and poor coal sludge separation effect of existing coal sludge water treatment equipment, and can effectively improve the treatment effect of coal sludge water.

[0026] Example 4: Please refer to Figures 1 to 9On the basis of the third embodiment, the extrusion device 3 is provided with a cleaning device 2 for cleaning the first filter 403 and the second filter 406, and the cleaning device 2 includes a connecting rod 202 coaxially mounted with the extrusion head 301, and a rotating disk 204 inserted into the first processing chamber 401 or the second processing chamber 408 is provided at the end of the connecting rod 202, and a cleaning tooth 203 for scraping the inner wall of the first filter 403 or the second filter 406 is integrally formed on the rotating disk 204, a worm gear 201 is fixedly mounted on the connecting rod 202, and a rack 13 is installed between the left shell 414 and the right shell 404, a worm 304 meshingly connected to the worm gear 201 is rotatably mounted on the fixed rod 302, and a driven wheel 303 is coaxially mounted on the worm 304. When the reciprocating push rod 12 pushes 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. The driven wheel 303 will drive the worm 304 to rotate during the movement, and then the worm 304 will drive the worm wheel 201 to rotate, and the worm wheel 201 drives the rotating disk 204 to rotate through the connecting rod 202, and the rotating disk 204 can drive the cleaning teeth 203 to move so as to scrape the inside of the first filter 403 or the second filter 406, so as to avoid the first filter 403 and the second filter 406 from being blocked, thereby ensuring the filter pressing effect. It further solves the problems of uneven reagent mixing and poor coal slime separation effect of the existing coal slime water treatment equipment, and can effectively improve the treatment effect of coal slime water.

[0027] Example 5: Please refer to Figure 3 , Figure 4 and Figure 5 On the basis of the fourth embodiment, the main rotating shaft 501 is respectively installed with a lower stirring frame 506 for stirring the coal slurry water and scraping the intermediate filter membrane 25 in the corresponding upper liquid storage chamber 24 and the lower liquid storage chamber 26, an upper paddle 505 for stirring the coal slurry water is fixedly installed on the upper stirring frame 504, and a lower paddle 507 for stirring the coal slurry water is fixedly installed on the lower stirring frame 506, and the treatment tank 1 is respectively provided with a maintenance manhole 8 for convenient maintenance at the corresponding upper liquid storage chamber 24 and the lower liquid storage chamber 26. The stirring of the lower stirring frame 506 can prevent the coal slurry water in the upper liquid storage chamber 24 and the lower liquid storage chamber 26 from precipitating, and prevent coal slurry from silting up or even clogging the intermediate filter membrane 25, thereby improving the reliability of the equipment. The upper blade 505 and the lower blade 507 can also improve the effect of mixing the coal slurry water, and the maintenance manhole 8 can also facilitate the cleaning of the upper liquid storage chamber 24 and the lower liquid storage chamber 26, thus facilitating the use. The problem of uneven reagent mixing and poor coal slurry separation effect in the existing coal slurry water treatment equipment is further solved, and the treatment effect of coal slurry water can be effectively improved.

[0028] Embodiment 6: Based on Embodiment 5, the present invention further provides a method for using a coal slime water treatment device for coal washing and processing, comprising the following steps: Step 1: First, the operator opens the processing program in the controller 27. At this time, the controller 27 will detect the liquid level of the coal slurry water in the diversion flow channel 22 through the liquid level sensor 9, and automatically adjust the liquid level in the diversion flow channel 22 to a preset height through the main motor 14, and maintain it at this height. At the same time, the agent will be evenly mixed into the coal slurry water in the diversion flow channel 22 through the stirring device 5 and the drug supply pump 6; Step 2: When the liquid level in the diversion channel 22 stabilizes to a specified height, the controller 27 starts to operate the reciprocating push rod 12, which drives the extrusion device 3 to continuously filter the coal slurry water in the two-way docking device 4, thereby separating the coal slurry water into reusable water and coal slurry slag; Step 3: During the coal slime water treatment process, the operator can change the composition and concentration of the agent provided by the drug supply pump 6 according to the differences in conditions such as the coal slime content in the coal slime water supplied in the flow guide channel 22, and adjust the working mode of the reciprocating push rod 12, so as to achieve better coal slime water treatment effects.

[0029] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A coal slime water treatment device for coal washing and processing, characterized in that: include: A treatment tank (1), wherein at least three lower isolating rings (21) are concentrically arranged inside the treatment tank (1), and upper isolating rings (28) are arranged inside the treatment tank (1) at positions concentric with and staggered with the lower isolating rings (21), the bottom of the lower isolating ring (21) is sealed from the treatment tank (1), and the top of the lower isolating ring (21) is not sealed from the treatment tank (1), the top height of the upper isolating ring (28) is higher than the top height of the lower isolating ring (21), and the bottom of the upper isolating ring (28) is sealed from the treatment tank (1), concentric water grooves are respectively formed between adjacent upper isolating rings (28) and lower isolating rings (21), and a guide channel (22) composed of concentric water grooves connected in series is formed between the upper isolating ring (28) and the lower isolating ring (21); A stirring device (5), the stirring device (5) comprising a main rotating shaft (501) arranged concentrically with the lower isolation ring (21) and rotatably mounted with the processing tank (1), and an upper stirring frame (504) is fixedly mounted on the main rotating shaft (501) and is inserted into each concentric water tank for rotational stirring, the inlet of the diversion flow channel (22) is the concentric water tank closest to the main rotating shaft (501) and is used to inject coal slurry water and reagents provided from the outside, and the outlet of the diversion flow channel (22) is the concentric water tank farthest from the main rotating shaft (501).

2. The coal slime water treatment device for coal washing and processing according to claim 1, characterized in that: A gas-liquid separation membrane (20) is fixedly installed on the top of the guide flow channel (22), and a gas collecting chamber (19) is formed between the gas-liquid separation membrane (20) and the top of the processing tank (1). An exhaust port (17) connected to the gas collecting chamber (19) is installed on the top of the processing tank (1). The gas-liquid separation membrane (20) is used to separate the gas in the guide flow channel (22) into the gas collecting chamber (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: The treatment tank (1) is used to inject external medicine into the inlet of the diversion channel (22) through a medicine supply pump (6); a hollow butt joint pipe (508) is concentrically arranged in the main rotating shaft (501); an annular liquid delivery sleeve (18) is fixedly installed in the treatment tank (1) and is rotatably sealed with the inlet end of the hollow butt joint pipe (508); the annular liquid delivery sleeve (18) is connected to the output end of the medicine supply pump (6); a liquid delivery pipe (503) connected to the hollow butt joint pipe (508) is arranged at a corresponding concentric water tank on the upper stirring frame (504); and the medicine is sprayed into the diversion channel (22) through a liquid spray head (502) on the liquid delivery pipe (503).

4. The coal slime water treatment device for coal washing and processing according to claim 3 is characterized by: The treatment tank (1) is equipped with a main motor (14) for driving the main rotating shaft (501) to rotate, and the treatment tank (1) injects external coal slurry water into the inlet of the diversion channel (22) through a water supply pump (16). The output end of the main motor (14) drives a pulley (15), and the pulley (15) drives the water supply pump (16) and the drug supply pump (6) to rotate respectively through a toothed belt.

5. The coal slime water treatment device for coal washing and processing according to claim 4, characterized in that: A controller (27) is fixedly mounted at the front end of the processing tank (1), and a liquid level sensor (9) for detecting the liquid level in the diversion flow channel (22) is mounted in the diversion flow channel (22). The controller (27) is electrically connected to the liquid level sensor (9) and the main motor (14), respectively.

6. The coal slime water treatment device for coal washing and processing according to claim 1, characterized in that: A bottom baffle (23) is fixedly mounted on the bottom of the diversion flow channel (22), and the bottom baffle (23) and the bottom of the treatment tank (1) are separated into an upper liquid storage chamber (24) and a lower liquid storage chamber (26) arranged from top to bottom by an intermediate filter membrane (25), and the lower liquid storage chamber (26) is connected to the outlet of the diversion flow channel (22) via a diversion pipe (7). A two-way docking device (4) is provided at the bottom of the treatment tank (1), and the two-way docking device (4) comprises a left shell (414) and a right shell (404) coaxially fixed together, and the left shell (414) is connected to the bottom of the treatment tank (1). The ends of the left shell (414) and the right shell (404) are respectively provided with a slag discharge port (409); the interior of the left shell (414) is divided into a first processing chamber (401) and a first collecting chamber (402) by a first filter screen (403); and the interior of the right shell (404) is divided into a second processing chamber (408) and a second collecting chamber (405) by a second filter screen (406); the first processing chamber (401) is connected to 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 lower liquid storage chamber (26). The first processing chamber (401) is connected to the second processing chamber (408) 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 processing chamber (408). The first collecting chamber (402) is connected to the second processing chamber (408) through a flow delivery pipe (413), and a third one-way valve (412) is installed on the flow delivery pipe (413) to only allow liquid to flow from the first collecting chamber (402) to the second processing chamber (408). The second collecting chamber (405) is connected to the second processing chamber (408) through a liquid discharge pipe (40 7) to discharge the liquid, and an extrusion device (3) is arranged between the left shell (414) and the right shell (404), the extrusion device (3) comprising two extrusion heads (301) connected together by a fixing rod (302), the two extrusion heads (301) being respectively inserted into the left shell (414) and the right shell (404) to filter the coal slurry water in the left shell (414) and the right shell (404), and a reciprocating push rod (12) for pushing the extrusion head (301) to move left and right is fixedly mounted on the left shell (414).

7. The coal slime water treatment device for coal washing and processing according to claim 6, characterized in that: A closing piston (411) for closing the slag discharge port (409) is installed in the left shell (414) and the right shell (404), respectively, and the rear end of the closing piston (411) is fixedly connected to the left shell (414) or the right shell (404) via a return spring (410).

8. The coal slime water treatment device for coal washing and processing according to claim 6, characterized in that: The extrusion device (3) is provided with a cleaning device (2) for cleaning the first filter screen (403) and the second filter screen (406), the cleaning device (2) comprising a connecting rod (202) coaxially mounted with the extrusion head (301), and a rotating disk (204) inserted into the first processing chamber (401) or the second processing chamber (408) is provided at the end of the connecting rod (202), and 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).

9. The coal slime water treatment device for coal washing and processing according to claim 8, characterized in that: A worm wheel (201) is fixedly mounted on the connecting rod (202), and a rack (13) is mounted between the left housing (414) and the right housing (404). A worm (304) meshingly connected to the worm wheel (201) is rotatably mounted on the fixed rod (302), and a driven wheel (303) is coaxially mounted on the worm (304).

10. The coal slime water treatment device for coal washing and processing according to claim 6, characterized in that: The main rotating shaft (501) is provided with lower stirring racks (506) for stirring the coal slurry water and scraping the intermediate filter membrane (25) in the corresponding upper liquid storage chamber (24) and lower liquid storage chamber (26), respectively; an upper paddle (505) for stirring the coal slurry water is fixedly mounted on the upper stirring rack (504), and a lower paddle (507) for stirring the coal slurry water is fixedly mounted on the lower stirring rack (506); and the treatment tank (1) is provided with maintenance manholes (8) for convenient maintenance in the corresponding upper liquid storage chamber (24) and lower liquid storage chamber (26), respectively.

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