Intelligent slime water treatment system

Abstract

The utility model provides an intelligent slime water treatment system. The intelligent slime water treatment system comprises a concentration tank, a circulating water tank, a filter pressing device and a controller, an outlet of the concentration tank is communicated with an inlet of the filter pressing device through a slime water conveying pipeline; a first slime water pump is connected in series with the slime water conveying pipeline. A filtrate tank outlet of the filter pressing device is communicated with a filtrate pipe which is respectively communicated with a clear water pipe and a concentrated water pipe through an interlocking three-way valve, one end of the clear water pipe far away from the filtrate pipe is communicated with the circulating water tank, and one end of the concentrated water pipe far away from the filtrate pipe is communicated with the concentration tank. An in-water particle counting instrument is arranged in a filtrate tank of the filter pressing device; and the controller is electrically connected with the in-water particle counting instrument, the first coal slime water pump and the interlocking three-way valve respectively. According to the invention, efficient and accurate intelligent treatment of the slime water is realized.

Description

Technical Field

[0001] This application relates to the technical field of coal slime water treatment, and particularly to an intelligent coal slime water treatment system. Background Art

[0002] Most coal preparation plants in China adopt wet coal preparation. In wet coal preparation plants, water is the most important working medium. The water used as the working medium is contaminated by fine solid particles in raw coal during the washing and processing process, becoming coal slime water. In order to reduce the water consumption of coal preparation plants and achieve clean production in coal preparation plants, it is necessary to purify and reuse the coal slime water.

[0003] In the prior art, the solid-liquid separation of coal slime water is usually carried out by a filter press device. However, the filter press device has obvious defects in filtrate treatment. Specifically, when the filter press device starts the feeding operation, the initial filtrate is mainly concentrated water, which contains a large amount of solid particles and impurities. In the prior art, this concentrated water is often directly discharged into the circulating water pool, and then the water in the circulating water pool is used for coal washing. The concentrated water discharged at the initial stage of the filter press device seriously pollutes the clear water in the circulating water pool. This not only reduces the quality of the circulating water and its reuse rate, but also has a negative impact on the normal operation of the coal washing system, ultimately resulting in unqualified coal products and disorder of the coal washing system. Utility Model Content

[0004] This application provides an intelligent coal slime water treatment system to solve the above problems mentioned in the background art.

[0005] This application provides an intelligent coal slime water treatment system, including: a thickener, a circulating water pool, a filter press device and a controller.

[0006] The outlet of the thickener is connected to the inlet of the filter press device through a coal slime water conveying pipeline, and a first coal slime water pump is connected in series on the coal slime water conveying pipeline.

[0007] The outlet of the filtrate tank of the filter press device is connected to a filtrate pipe, and the filtrate pipe is respectively connected to a clear water pipe and a concentrated water pipe through an interlocking three-way valve. The end of the clear water pipe far from the filtrate pipe is connected to the circulating water pool, and the end of the concentrated water pipe far from the filtrate pipe is connected to the thickener.

[0008] A water particle counter is arranged in the filtrate tank of the filter press device, and the controller is electrically connected to the water particle counter, the first coal slime water pump and the interlocking three-way valve respectively.

[0009] Optionally, the thickener includes a first-stage thickener and a second-stage thickener, and the first-stage thickener and the second-stage thickener are connected in series through an overflow hole.

[0010] The end of the concentrated water pipe far from the filtrate pipe is connected to the first-stage thickener, and the overflow direction in the thickener is from the first-stage thickener to the second-stage thickener.

[0011] Optionally, the outlet of the first thickener is connected to a hydrocyclone through a light coal slime water conveying pipeline, the outlet of the second thickener is communicated with the inlet of a pressure filtration device through a coal slime water conveying pipeline, and a second coal slime water pump is connected in series on the light coal slime water conveying pipeline.

[0012] The second coal slime water pump and the hydrocyclone are both electrically connected to a controller.

[0013] Optionally, the light phase outlet of the hydrocyclone is communicated with a circulation water tank.

[0014] Optionally, the treatment system is further provided with a chemical dosing device, and the chemical dosing device includes a chemical agent tank, a first chemical dosing pipeline, a second chemical dosing pipeline, a first chemical agent pump and a second chemical agent pump.

[0015] Both ends of the first chemical dosing pipeline are respectively communicated with the chemical agent tank and the outlet section of the second coal slime water pump on the light coal slime water conveying pipeline, the first chemical agent pump is arranged on the first chemical dosing pipeline, both ends of the second chemical dosing pipeline are respectively communicated with the chemical agent tank and the outlet section of the coal slime water conveying pipeline located at the first coal slime water pump, and the second chemical agent pump is arranged on the second chemical dosing pipeline.

[0016] The first chemical agent pump and the second chemical agent pump are both electrically connected to the controller.

[0017] Optionally, a first chemical agent regulating valve is arranged on the first chemical dosing pipeline, and a second chemical agent regulating valve is arranged on the second chemical dosing pipeline.

[0018] The first chemical agent regulating valve and the second chemical agent regulating valve are both electrically connected to the controller.

[0019] Optionally, a medicine mixing structure is arranged on the pipeline between the connection part of the light coal slime water conveying pipeline and the first chemical dosing pipeline to the inlet end of the hydrocyclone, and on the pipeline between the connection part of the coal slime water conveying pipeline and the second chemical dosing pipeline to the pressure filtration device.

[0020] Optionally, the medicine mixing structure includes a mixing pipe section, a screw rod, a spiral blade, a fixing rod and a bearing.

[0021] The diameter of the mixing pipe section is larger than the diameters of the light coal slime water conveying pipeline and the coal slime water conveying pipeline. The spiral blade is fixedly arranged on the outer periphery of the screw rod. The fixing rod passes through the inside of the screw rod along the length direction, and both ends of the fixing rod are fixedly connected with the side walls at both ends of the mixing pipe section along the material flow direction. The bearings are arranged at both ends of the screw rod. The inner rings of the bearings are fixedly sleeved on the outer side of the fixing rod, and the inner wall of the screw rod is fixedly sleeved on the outer rings of the bearings.

[0022] The intelligent coal slime water treatment system provided by the present application realizes the efficient, accurate and intelligent treatment of coal slime water. Compared with the prior art, it has the following beneficial effects:

[0023] (1) By setting up a particle counter in water, the content of particulate impurities in the filtrate in the filtrate tank of the pressure filtration device is detected in real time, and the controller controls the opening direction of the interlocking three-way valve according to the particle number signal received from the particle counter in water. Such a design can not only achieve real-time monitoring of the filtrate water quality of the pressure filtration device, but also enable the controller to store the filtrate separately in a timely manner according to the filtrate water quality, realizing effective separation and treatment of thick water and clear water. The introduction of the controller improves the automation and intelligence of the coal slime water treatment system, saves the input of labor force and the error rate of manual operation, and at the same time makes the treatment of coal slime water more stable, accurate and efficient. By using an interlocking three-way valve, this kind of switch has mutual exclusivity, that is, when the pipeline leading to the circulating water tank is opened, the pipeline leading to the thickening tank is closed at the same time, and vice versa. This fundamentally avoids the possibility of thick water entering the circulating water tank, thus ensuring the cleanliness of the water body in the circulating water tank.

[0024] (2) By setting up a first-stage thickening tank and a second-stage thickening tank, and separating the solid and liquid of the coal slime water in the first-stage thickening tank and the second-stage thickening tank through a hydrocyclone and a pressure filtration device respectively, the treatment efficiency of the coal slime water is improved.

[0025] (3) By setting a mixing structure on the chemical dosing pipeline, the coal slime water is quickly mixed with the chemical agent in the pipeline, improving the hydrophobicity of solid particles, causing the solid particles to agglomerate, increasing the volume of solid particles in a short time, and improving the solid-liquid separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic structural diagram of a coal slime water intelligent treatment system provided by an embodiment of the present application;

[0028] Figure 2 It is a schematic structural diagram of a coal slime water intelligent treatment system provided by another embodiment of the present application;

[0029] Figure 3 It is a schematic structural diagram of a coal slime water intelligent treatment system provided by still another embodiment of the present application;

[0030] Figure 4 It is a schematic structural diagram of a mixing structure provided by an embodiment of the present application;

[0031] Figure 5Schematic diagram of the controller connection provided by an embodiment of the present application;

[0032] Explanation of reference numerals:

[0033] 1: thickener; 2: circulating water tank; 3: filter press device; 4: controller; 5: chemical mixing structure; 110: first-stage thickener; 120: second-stage thickener; 130: hydrocyclone; 301: water particle counter; 302: interlocking three-way valve; 310: coal slime water pipeline; 320: first coal slime water pump; 321: second coal slime water pump; 330: filtrate pipe; 331: clear water pipe; 332: concentrated water pipe; 340: light coal slime water pipeline; 410: chemical tank; 420: first chemical addition pipeline; 421: first chemical pump; 422: first chemical regulating valve; 430: second chemical addition pipeline; 431: second chemical pump; 432: second chemical regulating valve; 510: mixing pipe section; 520: screw; 530: helical blade; 540: fixed rod; 550: bearing. Detailed implementation manners

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without making creative efforts also belong to the scope of protection of the present application.

[0035] As Figure 1 and Figure 5 shown, the present application provides an intelligent coal slime water treatment system, including: a thickener 1, a circulating water tank 2, a filter press device 3, and a controller 4.

[0036] The outlet of the thickener 1 is communicated with the inlet of the filter press device 3 through a coal slime water pipeline 310, and a first coal slime water pump 320 is connected in series on the coal slime water pipeline 310.

[0037] The filtrate tank outlet of the filter press device 3 is communicated with a filtrate pipe 330, and the filtrate pipe 330 is respectively communicated with a clear water pipe 331 and a concentrated water pipe 332 through an interlocking three-way valve 302. One end of the clear water pipe 331 away from the filtrate pipe 330 is communicated with the circulating water tank 2, and one end of the concentrated water pipe 332 away from the filtrate pipe 330 is communicated with the thickener 1.

[0038] A water particle counter 301 is arranged in the filtrate tank of the filter press device 3, and the controller 4 is electrically connected to the water particle counter 301, the first coal slime water pump 320, and the interlocking three-way valve 302 respectively.

[0039] Specifically, the thickening tank 1 is used to temporarily store and thicken and precipitate the slime water. The pressure filtration device 3 is used to separate the solid and liquid of the slime water from the thickening tank 1 to obtain filtrate and coal slime solids. In the initial stage of the operation of the pressure filtration device 3, the obtained filtrate is thick water containing a large amount of solid particles and impurities. As the operation of the pressure filtration device 3 stabilizes, clearer clear water is obtained.

[0040] The circulating water tank 2 is used to store the clear water of the pressure filtration device 3, and the thick water is returned to the thickening tank 1 for further sedimentation and then pressure filtration again. The particle counter 301 in the water is used to detect the content of particulate impurities in the filtrate in the filtrate tank of the pressure filtration device 3 in real time, realize the real-time monitoring of the filtrate water quality of the pressure filtration device 3, and transmit the particle data to the controller 4. The controller 4 controls the opening direction of the interlocking three-way valve 302 according to the received particle number signal from the particle counter 301 in the water. The controller 4 can timely separate and store the filtrate according to the filtrate water quality, realize the effective separation and treatment of thick water and clear water, avoid the thick water entering the circulating water tank 2 and polluting the water quality of the clear water, ensure the cleanliness of the water quality in the circulating water tank 2, and when the water in the circulating water tank 2 is reused for coal washing, it has no negative impact on the coal washing system.

[0041] When the particle number signal received by the controller 4 from the particle counter 301 in the water is greater than the preset particle value, the thick water pipe 332 leading to the thickening tank 1 of the interlocking three-way valve 302 is controlled to open, and at the same time, the passage of the clear water pipe 331 is closed, and the thick water filtrate is transported to the thickening tank 1 for further sedimentation and then pressure filtration again. When the particle number signal received by the controller 4 from the particle counter 301 in the water is less than or equal to the preset particle value, the clear water pipe 331 leading to the circulating water tank 2 of the interlocking three-way valve 302 is controlled to open, and at the same time, the passage of the thick water pipe 332 is closed, and the clear water filtrate is transported to the circulating water tank 2 for storage and used for coal washing, so that the slime water can be reused and resources are saved.

[0042] Through the above solution, the present application realizes the efficient and accurate treatment of coal slime water. By setting a particle counter in water, the content of particulate impurities in the filtrate in the filtrate tank of the pressure filtration device is detected in real time, and the controller controls the opening direction of the interlocking three-way valve according to the particle number signal received from the particle counter in water. Such a design can not only realize the real-time monitoring of the filtrate quality of the pressure filtration device, but also, through the controller, separate the filtrate in time according to the filtrate quality, realizing the effective separation and treatment of thick water and clear water. The introduction of the controller improves the automation and intelligence of the coal slime water treatment system, saves the input of labor force and the error rate of manual operation, and at the same time, the treatment of coal slime water is more stable, accurate and efficient. By using an interlocking three-way valve, this kind of switch has mutual exclusivity, that is, when the pipeline leading to the circulation water tank is opened, the pipeline leading to the thickener is closed at the same time, and vice versa. This fundamentally avoids the possibility of thick water entering the circulation water tank, thus ensuring the cleanliness of the water body in the circulation water tank.

[0043] As Figure 2 and Figure 5 shown, optionally, the thickener 1 includes a first-stage thickener 110 and a second-stage thickener 120, and the first-stage thickener 110 is connected in series with the second-stage thickener 120 through an overflow hole.

[0044] One end of the thick water pipe 332 far from the filtrate pipe 330 is communicated with the first-stage thickener 110, and the overflow direction in the thickener 1 is from the first-stage thickener 110 to the second-stage thickener 120.

[0045] Specifically, the coal slime water enters the first-stage thickener 110 for primary thickening and sedimentation. As the coal slime water continuously enters and the liquid level continuously rises, it overflows to the second-stage thickener 120 through the overflow port for continuous sedimentation. The thick water obtained at the initial stage of the operation of the pressure filtration device 3 is transported to the first-stage thickener 110 through the thick water pipe 332 for continuous sedimentation. By setting the first-stage thickener 110 and the second-stage thickener 120, multiple sedimentations of the coal slime water are carried out, which is beneficial to reducing the operation load of the pressure filtration device 3, contributing to the efficient solid-liquid separation in the coal slime water, and thus improving the separation efficiency of the pressure filtration device 3.

[0046] As Figure 2 and Figure 5 shown, optionally, the outlet of the first-stage thickener 110 is connected with a hydrocyclone 130 through a light coal slime water conveying pipeline 340, the outlet of the second-stage thickener 120 is communicated with the inlet of the pressure filtration device 3 through a coal slime water conveying pipeline 310, and a second coal slime water pump 321 is connected in series on the light coal slime water conveying pipeline 340.

[0047] The second coal slime water pump 321 and the hydrocyclone 130 are both electrically connected to the controller 4.

[0048] Specifically, since the overflow direction in the thickening tank 1 is from the first-stage thickening tank 110 to the second-stage thickening tank 120, the solid particles sedimented in the first-stage thickening tank 110 are larger than those in the second-stage thickening tank 120. The density difference between large particle impurities and water is relatively large, and it is easy to separate from water. Therefore, the slime water in the first-stage thickening tank 110 is transported to the hydrocyclone 130 through the light slime water conveying pipeline 340 under the power of the second slime water pump 321 for centrifugal separation, and the slime water in the second-stage thickening tank 120 is transported to the pressure filtration device 3 through the slime water conveying pipeline 310 under the power of the first slime water pump 320 for pressure filtration. By separating the solid and liquid of the slime water in the first-stage thickening tank 110 and the second-stage thickening tank 120 by different equipment, the treatment efficiency of the slime water is improved.

[0049] The controller 4 is used to control the opening and closing of the second slime water pump 321 and the hydrocyclone 130, improving the automation degree of the slime water treatment system.

[0050] As Figure 3 and Figure 5 shown, optionally, the light phase outlet of the hydrocyclone 130 is connected to the circulation water tank 2.

[0051] Specifically, the water overflowing from the light phase outlet of the hydrocyclone 130 is transported into the circulation water tank 2, enabling the recycling of the slime water and reducing the waste of water resources.

[0052] As Figure 3 and Figure 5 shown, optionally, the treatment system is also provided with a dosing device, which includes a chemical tank 410, a first dosing pipeline 420, a second dosing pipeline 430, a first chemical pump 421 and a second chemical pump 431.

[0053] The two ends of the first dosing pipeline 420 are respectively connected to the chemical tank 410 and the outlet section of the second slime water pump 321 on the light slime water conveying pipeline 340. The first chemical pump 421 is arranged on the first dosing pipeline 420. The two ends of the second dosing pipeline 430 are respectively connected to the chemical tank 410 and the outlet section of the first slime water pump 320 on the slime water conveying pipeline 310. The second chemical pump 431 is arranged on the second dosing pipeline 430.

[0054] Both the first chemical pump 421 and the second chemical pump 431 are electrically connected to the controller 4.

[0055] Specifically, the dosing device is used to add chemicals to the slime water in the light slime water conveying pipeline 340 and the slime water conveying pipeline 310. After mixing with the slime water, it improves the hydrophobicity of the particles in the slime water, enables the particulate impurities to agglomerate, and forms larger particulate matters, which is beneficial to solid-liquid separation.

[0056] The chemical agent tank 410 stores chemical agents. Powered by the first chemical agent pump 421, the chemical agents in the chemical agent tank 410 are transported through the first chemical agent adding pipeline 420 to the light coal slime water transportation pipeline 340, so that the chemical agents are mixed with the light coal slime water from the thickener 1, improving the separation efficiency of the hydrocyclone 130. Powered by the second chemical agent pump 431, the chemical agents in the chemical agent tank 410 are transported through the second chemical agent adding pipeline 430 to the coal slime water transportation pipeline 310, improving the separation efficiency of the pressure filtration device 3. Thus, the efficiency of the coal slime water treatment system is improved. The controller 4 is used to control the start and stop of the first chemical agent pump 421 and the second chemical agent pump 431.

[0057] As Figure 3 and Figure 5 shown, optionally, a first chemical agent regulating valve 422 is provided on the first chemical agent adding pipeline 420, and a second chemical agent regulating valve 432 is provided on the second chemical agent adding pipeline 430.

[0058] Both the first chemical agent regulating valve 422 and the second chemical agent regulating valve 432 are electrically connected to the controller 4.

[0059] Specifically, by controlling the opening and closing of the first chemical agent regulating valve 422 and the second chemical agent regulating valve 432 by the controller 4, the automatic addition of chemical agents is realized.

[0060] Optionally, mixing structures 5 are provided on the pipeline between the connection point of the light coal slime water transportation pipeline 340 and the first chemical agent adding pipeline 420 to the inlet end of the hydrocyclone 130 and on the pipeline between the connection point of the coal slime water transportation pipeline 310 and the second chemical agent adding pipeline 430 to the pressure filtration device 3.

[0061] Specifically, the mixing structure 5 is used to efficiently mix the light coal slime water in the light coal slime water transportation pipeline 340 with the chemical agents, and at the same time efficiently mix the coal slime water in the coal slime water transportation pipeline 310 with the chemical agents, so that the coal slime water is quickly mixed with the chemical agents in the pipeline, improving the hydrophobicity of solid particles, causing the solid particles to agglomerate, increasing the volume of solid particles in a short time, and improving the solid-liquid separation efficiency.

[0062] As Figure 4 shown, optionally, the mixing structure 5 includes a mixing pipe section 510, a screw 520, a spiral blade 530, a fixing rod 540 and a bearing 550.

[0063] The diameters of the mixing pipe sections 510 are all larger than those of the light coal slime water conveying pipeline 340 and the coal slime water conveying pipeline 310. The spiral blades 530 are fixedly arranged on the outer periphery of the screw rod 520. The fixing rod 540 passes through the interior of the screw rod 520 along the length direction, and both ends of the fixing rod 540 are fixedly connected to the side walls at both ends of the mixing pipe section 510 along the material flow direction. The bearings 550 are arranged at both ends of the screw rod 520. The inner ring of the bearing 550 is fixedly sleeved on the outer side of the fixing rod 540, and the inner wall of the screw rod 520 is fixedly sleeved on the outer ring of the bearing 550.

[0064] Specifically, the mixing pipe section 510 is used to provide a chamber to improve the mixing efficiency of the coal slime water and the reagent. The spiral blades 530 are fixedly arranged on the outer periphery of the screw rod 520. The fixing rod 540 fixes the screw rod 520 in the axial direction. During the flow of the coal slime water and the reagent, passing through the spiral blades 530, the spiral blades 530 play a role in guiding the material, which helps the coal slime water and the reagent to tumble more violently, thereby improving the mixing degree of the coal slime water and the reagent, making it easier for the solid particles to agglomerate, and further improving the solid-liquid separation efficiency of the filter press device 3 and the hydrocyclone 130, reducing the amount of thick water in the filter press device 3, and further improving the efficiency of coal slime water treatment.

[0065] Meanwhile, the bearings 550 are arranged at both ends of the screw rod 520. The inner ring of the bearing 550 is fixedly sleeved on the outer side of the fixing rod 540, and the inner wall of the screw rod 520 is fixedly sleeved on the outer ring of the bearing 550. In this way, the screw rod 520 can rotate. Especially during the flow of the coal slime water and the reagent, it generates a force on the spiral blades 530, so that the spiral blades 530 rotate radially under the power of the coal slime water and the reagent, thereby further acting on the flowing coal slime water and the reagent, further improving the mixing efficiency of the coal slime water and the reagent, and further improving the solid-liquid separation efficiency of the filter press device 3 and the hydrocyclone 130.

[0066] Among them, a sealing member is arranged on the bearing 550 to seal the bearing 550 and prevent the coal slime water and the reagent from entering the bearing 550 / screw rod 520 during the flow process.

[0067] The technical solution of the present application will be described in detail below with specific embodiments.

[0068] In the coal slime water intelligent treatment system of this embodiment, the operation process during specific work is as follows:

[0069] The coal slime water enters the first-stage thickening tank 110 for primary thickening and sedimentation. As the coal slime water continuously enters and the liquid level continuously rises, it overflows through the overflow port to the second-stage thickening tank 120 for further sedimentation.

[0070] Turn on the first slime water pump 320, the second slime water pump 321, and the hydrocyclone 130 through the controller 4. At the same time, turn on the first chemical pump 421, the second chemical pump 431, the first chemical regulating valve 422, and the second chemical regulating valve 432.

[0071] The slime water in the first-stage thickener 110 is transported to the hydrocyclone 130 through the light slime water conveying pipeline 340 under the power of the second slime water pump 321 for centrifugal separation. The slime water in the second-stage thickener 120 is transported to the filter press device 3 through the slime water conveying pipeline 310 under the power of the first slime water pump 320 for filter pressing. Powered by the first chemical pump 421, the chemical in the chemical tank 410 is transported through the first chemical adding pipeline 420 into the light slime water conveying pipeline 340, so that the chemical is mixed with the light slime from the thickener 1, improving the separation efficiency of the hydrocyclone 130. Powered by the second chemical pump 431, the chemical in the chemical tank 410 is transported through the second chemical adding pipeline 430 into the slime water conveying pipeline 310, improving the separation efficiency of the filter press device 3.

[0072] The controller 4 controls the opening direction of the interlocking three-way valve 302 according to the particle number signal received from the in-water particle counter 301. When the particle number signal received by the controller 4 from the in-water particle counter 301 is greater than the preset particle value, control the opening of the thick water pipe 332 leading to the first-stage thickener 110 of the interlocking three-way valve 302, and at the same time close the passage of the clear water pipe 331, and transport the thick water filtrate to the thickener 1 for continued sedimentation and then filter pressing again. When the particle number signal received by the controller 4 from the in-water particle counter 301 is less than or equal to the preset particle value, control the opening of the clear water pipe 331 leading to the circulating water tank 2 of the interlocking three-way valve 302, and at the same time close the passage of the thick water pipe 332, transport the clear water filtrate to the circulating water tank 2 for storage, and the water overflowing from the light-phase outlet of the hydrocyclone 130 is transported into the circulating water tank 2 and used for coal washing.

[0073] When the slime water and the chemical flow through the chemical mixing structure 5, they pass through the spiral blade 530. The spiral blade 530 plays a role in guiding the material, which helps the slime water and the chemical to tumble more violently, thereby improving the mixing degree of the slime water and the chemical, making it easier for solid particles to agglomerate, thereby improving the solid-liquid separation efficiency of the filter press device 3 and the hydrocyclone 130, and reducing the amount of thick water in the filter press device 3. At the same time, the slime water and the chemical exert a force on the spiral blade 530, thereby causing the spiral blade 530 to rotate radially, further acting on the slime water and the chemical flowing through, further improving the mixing efficiency of the slime water and the chemical, and thereby improving the solid-liquid separation efficiency of the filter press device 3 and the hydrocyclone 130.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present application.

Claims

1. An intelligent coal slime water treatment system, characterized in that, Including: A thickening tank (1), a circulating water tank (2), a filter press device (3) and a controller (4); A coal slime water conveying pipeline (310) is connected between the outlet of the thickening tank (1) and the inlet of the filter press device (3), and a first coal slime water pump (320) is connected in series on the coal slime water conveying pipeline (310); The filtrate tank outlet of the filter press device (3) is connected with a filtrate pipe (330), and the filtrate pipe (330) is respectively connected with a clear water pipe (331) and a thick water pipe (332) through an interlocking three-way valve (302). One end of the clear water pipe (331) far from the filtrate pipe (330) is connected with the circulating water tank (2), and one end of the thick water pipe (332) far from the filtrate pipe (330) is connected with the thickening tank (1); A water particle counter (301) is arranged in the filtrate tank of the filter press device (3), and the controller (4) is electrically connected with the water particle counter (301), the first coal slime water pump (320) and the interlocking three-way valve (302) respectively.

2. The intelligent coal slime water treatment system according to claim 1, wherein, The thickening tank (1) includes a first-stage thickening tank (110) and a second-stage thickening tank (120), and the first-stage thickening tank (110) and the second-stage thickening tank (120) are connected in series through an overflow hole; One end of the thick water pipe (332) far from the filtrate pipe (330) is connected with the first-stage thickening tank (110), and the overflow direction in the thickening tank (1) is from the first-stage thickening tank (110) to the second-stage thickening tank (120).

3. The intelligent coal slime water treatment system according to claim 2, characterized in that, The outlet of the first-stage thickening tank (110) is connected with a hydrocyclone (130) through a light coal slime water conveying pipeline (340), the outlet of the second-stage thickening tank (120) is connected with the inlet of the filter press device (3) through a coal slime water conveying pipeline (310), and a second coal slime water pump (321) is connected in series on the light coal slime water conveying pipeline (340); The second coal slime water pump (321) and the hydrocyclone (130) are both electrically connected with the controller (4).

4. The intelligent coal slime water treatment system according to claim 3, wherein, The light phase outlet of the hydrocyclone (130) is connected with the circulating water tank (2).

5. The intelligent coal slime water treatment system according to claim 4, wherein A dosing device is further arranged in the treatment system. The dosing device includes a chemical tank (410), a first dosing pipeline (420), a second dosing pipeline (430), a first chemical pump (421) and a second chemical pump (431); Both ends of the first dosing pipeline (420) are respectively connected with the chemical tank (410) and the outlet section of the second coal slime water pump (321) on the light coal slime water conveying pipeline (340). The first chemical pump (421) is arranged on the first dosing pipeline (420). Both ends of the second dosing pipeline (430) are respectively connected with the chemical tank (410) and the outlet section of the coal slime water conveying pipeline (310) located at the outlet of the first coal slime water pump (320). The second chemical pump (431) is arranged on the second dosing pipeline (430); The first chemical pump (421) and the second chemical pump (431) are both electrically connected with the controller (4).

6. The intelligent coal slime water treatment system according to claim 5, wherein, A first chemical dosing pipeline (420) is provided with a first chemical agent regulating valve (422), and a second chemical dosing pipeline (430) is provided with a second chemical agent regulating valve (432); The first chemical agent regulating valve (422) and the second chemical agent regulating valve (432) are both electrically connected to the controller (4).

7. The intelligent coal slime water treatment system according to claim 6, characterized in that, On the pipeline between the connection point of the light coal slime water conveying pipeline (340) and the first chemical dosing pipeline (420) and the inlet end of the hydrocyclone (130), and on the pipeline between the connection point of the coal slime water conveying pipeline (310) and the second chemical dosing pipeline (430) and the filter press device (3), a chemical mixing structure (5) is provided.

8. The intelligent coal slime water treatment system according to claim 7, wherein, The chemical mixing structure (5) includes a mixing pipe section (510), a screw rod (520), a spiral blade (530), a fixing rod (540) and a bearing (550); The diameter of the mixing pipe section (510) is larger than the diameters of the light coal slime water conveying pipeline (340) and the coal slime water conveying pipeline (310). The spiral blade (530) is fixedly arranged on the outer periphery of the screw rod (520). The fixing rod (540) passes through the inside of the screw rod (520) along the length direction, and both ends of the fixing rod (540) are fixedly connected to the side walls of both ends of the mixing pipe section (510) along the material flow direction. The bearing (550) is arranged at both ends of the screw rod (520). The inner ring of the bearing (550) is fixedly sleeved on the outer side of the fixing rod (540), and the inner wall of the screw rod (520) is fixedly sleeved on the outer ring of the bearing (550).

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