Coal chemical industry wastewater treatment system and treatment equipment

Abstract

The present application relates to a kind of permeable water pipes that can be applied to coal chemical industry wastewater treatment process between main impervious layer and secondary impervious layer, specifically coal chemical industry wastewater treatment system and treatment equipment, including inner pipeline, outer pipeline and magnetic control power unit, inner pipeline wall is provided with inner permeation hole, and the material of inner pipeline is corrosion-resistant elastic metal or elastic plastic, outer pipeline is sleeved on the outer circle of inner pipeline, and outer pipeline is made of cloth layer, sponge layer or other water-absorbing material, the magnetic attraction / repulsion generated by magnetic control power unit, the pipe diameter of inner pipeline is adjusted in real time, the opening area of inner permeation hole is changed, the real-time adjustment of permeation rate is realized, and the adaptability is strong;Sponge is used in outer pipeline, and the effect of hydraulic cushioning and uniform water distribution can be realized, to avoid the phenomenon that local permeable water is too much and drainage is not timely.

Description

Technical Field

[0001] This invention relates to a coal chemical wastewater treatment system and equipment, specifically to a permeable water pipe that can be used between the main anti-seepage layer and the secondary anti-seepage layer in the process of coal chemical wastewater treatment. Background Technology

[0002] In coal chemical wastewater treatment systems, permeable pipes are mainly used between the main and secondary impermeable layers. Gasification ash and boiler ash generated in coal chemical processes are buried below the soil layer. The main impermeable layer is used to prevent leachate from gasification ash and boiler ash from seeping into the deep underground layers and causing serious pollution. If leachate passes through the main impermeable layer, the permeable pipe can absorb this part of the leachate and discharge it to the sewage treatment pond for further treatment, thus preventing the pollution from spreading.

[0003] Traditional permeable pipes typically have non-adjustable permeability and poor adaptability. If there is excessive permeation or excessive local permeation, a large amount of permeable water can easily seep through the secondary impermeable layer and penetrate deeper into the soil. Furthermore, buried permeable pipes are prone to clogging and are difficult to maintain.

[0004] In view of the above-mentioned shortcomings, the present invention aims to create a coal chemical wastewater treatment system and equipment, making it more industrially valuable. Summary of the Invention

[0005] To address the aforementioned technical problems, the purpose of this invention is to provide a coal chemical wastewater treatment system and equipment that can simultaneously achieve real-time adjustment of permeability, avoid excessive localized infiltration water, and facilitate maintenance and cleaning.

[0006] The present invention provides a coal chemical wastewater treatment system, comprising a permeable pipe buried in an intermediate layer between a main impermeable layer and a secondary impermeable layer, and further comprising:

[0007] The inner pipe has internal permeation holes on its wall and is made of corrosion-resistant elastic metal or elastic plastic. An outer pipe is fitted around the inner pipe. The outer pipe is made of a fabric layer, a sponge layer, or other absorbent and permeable material. The pore diameter of the outer pipe is 0.5-2mm. A magnetically controlled power unit is installed on the reinforcing ribs of the inner wall of the inner pipe. When the magnetically controlled power unit is energized, it generates magnetism and adjusts the diameter of the inner pipe in real time through magnetic attraction / repulsion, thereby changing the opening area of ​​the inner permeation hole.

[0008] Furthermore, a monitoring unit is installed in the permeation water pipe. The monitoring unit integrates a water pressure sensor, a flow sensor, and a water quality sensor. The monitoring unit is connected to the magnetic power unit through a controller.

[0009] Furthermore, the leachate absorbed by the permeation pipe is transported to the treatment tank via a corrosion-resistant pump.

[0010] Furthermore, a filter plate is provided in the inner pipe. The filter plate is a circular filter screen structure with mesh holes. The outer ring of the filter plate is movably attached to the inner wall of the inner pipe and is provided with a rectangular groove for the reinforcing ribs to pass through. The permeable water pipe is provided in multiple sections, which are connected by connecting pipes. The connecting pipes are equipped with connecting ropes that connect to the filter plates.

[0011] Furthermore, the permeable water pipe is buried underground or laid above ground; When the permeable water pipe is buried underground, a maintenance well is dug at the location corresponding to the connecting pipe.

[0012] Furthermore, the filter plate moves along the length of the permeate pipe.

[0013] Furthermore, the magnetically controlled power unit also includes a housing, with the iron core disposed inside the housing, and the housing mounted on the surface of the reinforcing ribs.

[0014] Furthermore, the outer pipe and the inner pipe have an internal and external threaded fit structure, and the outer pipe is provided with an external permeation hole corresponding to the inner permeation hole.

[0015] The present invention also discloses a treatment device for use in conjunction with a coal chemical wastewater treatment system, and further includes: Maintenance well, which extends to the connecting pipe on the internal pipeline; The corrosion-resistant pump body is installed at the wellhead of the maintenance well.

[0016] By means of the above-described solution, the present invention has at least the following advantages: 1. The coal chemical wastewater treatment system and equipment of the present invention, through the magnetic attraction / repulsion generated by the magnetic control power unit, adjusts the pipe diameter of the inner pipe in real time and changes the opening area of ​​the inner permeation pore, thereby realizing the real-time adjustment of the permeability and having strong adaptability; 2. The coal chemical wastewater treatment system and equipment of the present invention uses sponge in the external pipe to achieve hydraulic buffering and uniform water distribution, avoiding the phenomenon of excessive local seepage and untimely drainage; 3. The coal chemical wastewater treatment system and equipment of the present invention separates the sediment into different sections of the permeable water pipe, which can be quickly cleaned by pulling the connecting rope, improving maintenance efficiency and extending the service life of the permeable water pipe.

[0017] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the coal chemical wastewater treatment system of the present invention; Figure 2 This is a schematic diagram of the permeable water pipe structure in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the external structure of the internal pipe of the present invention; Figure 4 This is a radial sectional view of the inner pipe of the present invention; Figure 5 This is a schematic diagram of the internal structure of the inner pipe of the present invention; Figure 6 This is a schematic diagram of the structure of the connecting pipe of the present invention connecting adjacent permeable water pipes; Figure 7 This is a front view of the permeable water pipe of the present invention; Figure 8 This is a cross-sectional view of the permeable water pipe of the present invention; Figure 9 This is a schematic diagram of the connecting pipe structure of the present invention; Figure 10 For the present invention Figure 8 Enlarged schematic diagram of the structure at point A in the middle; Figure 11 This is a schematic diagram of the magnetically controlled power unit structure in Embodiment 4 of the present invention; Figure 12 This is a cross-sectional view of the coil in Embodiment 4 of the present invention; Figure 13 This is a schematic diagram of the permeable water pipe structure in Embodiment 5 of the present invention; Figure 14 This is a schematic diagram of the control system in the control method of the present invention.

[0020] In the diagram: 1. Inner pipe; 11. Inner permeation hole; 101. Reinforcing rib; 2. Outer pipe; 21. Outer permeation hole; 3. Magnetic control power unit; 301. Wire; 31. Iron core; 32. Coil; 33. Shell; 321. Nickel-chromium alloy layer; 322. Copper core; 4. Connecting pipe; 401. Fastening bolt; 402. Connecting rope; 5. Filter plate; 6. Monitoring unit; 701. Soil layer; 702. Landfill layer; 703. Main anti-seepage layer; 704. Intermediate layer; 705. Secondary anti-seepage layer; 706. Maintenance well; 707. Corrosion-resistant pump body. Detailed Implementation

[0021] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0022] Please refer to the instruction manual appendix. Figure 1-14 This invention provides a technical solution: a coal chemical wastewater treatment system and equipment, which uses magnetic attraction / repulsion generated by a magnetic control power unit to adjust the diameter of the inner pipe 1 in real time, change the opening area of ​​the inner permeation hole 11, and realize real-time adjustment of the permeability; the sediment is separated in each section of the permeation pipe, and can be quickly cleaned by pulling the connecting rope 402, improving maintenance efficiency and extending the service life of the permeation pipe.

[0023] Example 1 refer to Figures 1 to 3 As shown, the coal chemical wastewater treatment system includes an intermediate layer 704 located between the main seepage barrier layer 703 and the secondary seepage barrier layer 705. A permeable water pipe is installed in the intermediate layer 704, comprising an inner pipe 1 and an outer pipe 2. The outer pipe 2 is fitted and fixed to the outer ring of the inner pipe 1. Internal permeable holes 11 are provided on the wall of the inner pipe 1, penetrating both the inner and outer walls. In the coal chemical wastewater treatment process, gasification ash and boiler ash are buried below the soil layer 701 to form a landfill layer 702. The main seepage barrier... The primary impermeable layer 703 and the secondary impermeable layer 705 are located below the landfill layer 702. The primary impermeable layer 703 and the secondary impermeable layer 705 are used to prevent leachate from gasification ash and boiler ash from entering the deep soil layer and causing further pollution. When leachate passes through the primary impermeable layer 703, the permeable water pipe can absorb the leachate using the outer pipe 2 and the inner permeable hole 11 to prevent the leachate from sinking further. The leachate absorbed by the permeable water pipe is then transported to the treatment pool in the coal chemical wastewater treatment system for further treatment through the corrosion-resistant pump body 707.

[0024] When in use, the permeable water pipe is buried underground. The surrounding leachate can be absorbed through the outer pipe 2 and discharged into the inner pipe 1 through the inner permeable hole 11. The leachate is pumped along the inner pipe 1 to the treatment pool in the coal chemical wastewater treatment system by the power of the corrosion-resistant pump body 707, which can prevent the leachate from passing through the secondary anti-seepage layer 705.

[0025] The specific process of osmotic fluid absorption: Step 1, physical filtration: The outer pipe 2 is made of a cloth layer, a sponge layer or other materials with water absorption and permeability properties, with a pore diameter between 0.5-2mm. It can intercept suspended particles (ash, slag, and sand) >0.1mm, preventing fine particles from directly entering the inner permeation pore 11 and causing blockage. The leachate is first absorbed by the outer pipe 2 for filtration. The second step, hydraulic buffering: When using a sponge in external pipe 2, the sponge's saturated water content can reach 60-80%, which can store a certain amount of leachate, form a stable water head, and reduce the impact of leachate fluctuations on the permeable water pipe; Third step, distribute water evenly: The outer pipe 2 diffuses the locally absorbed leachate laterally, so that the entire pipe wall is evenly watered, avoiding the problem of uneven stress on the permeable pipe caused by water entering only the area directly opposite the orifice of the inner permeable hole 11 and drying out other areas. Step 4, pass through internal permeation hole 11: The pore size of the inner permeation hole 11 is 6-20mm, which needs to match the pore size on the outer pipe 2 to prevent sponge debris from entering and to avoid insufficient flow. When the sponge is saturated, it forms a slight negative pressure (capillary suction), which promotes the flow of leachate into the low-pressure area: the interior of the inner pipe 1. Step 5: Intermittently run drainage: The intermittently operating corrosion-resistant pump body 707 creates an instantaneous low pressure at the pore interface of the sponge-inner permeation pore 11 during water pumping, accelerating permeation and simultaneously pumping out the leachate.

[0026] It should be noted that, in another embodiment, the inner permeation hole 11 can be set below the inner pipe 1, and the outer pipe 2 can be set above the inner wall of the inner pipe 1. That is, the sponge is higher than the inner permeation hole 11, so that the leachate in the inner pipe 1 is lower than the sponge, forming a continuous hydraulic gradient, ensuring that the inner pipe 1 maintains a negative pressure or gravity flow state.

[0027] Example 2 refer to Figures 2 to 4 As shown, the advantage of this permeable pipe compared to traditional permeable pipes is that the size of the inner permeable holes 11 on the surface of the permeable pipe can be adjusted, which makes it easy to adjust the size of the inner permeable holes 11 according to the drainage demand, so as to achieve the purpose of adjusting the permeability of the permeable pipe.

[0028] Implementation method: Four reinforcing ribs 101 are provided on the inner wall of the inner pipe 1. These four ribs are distributed at equal angles along the inner circumference of the inner pipe 1. Reinforcing ribs 101 are a common measure in traditional technology to increase water saturation. However, in this invention, a magnetically controlled power unit 3 is attached to the side of the reinforcing rib 101 closest to the axis of the inner pipe 1. Several magnetically controlled power units 3 are provided, distributed at equal intervals along the length of the reinforcing rib 101. These magnetically controlled power units 3 are connected in series via wires 301. 01 Connect to an external power supply device; when the power supply device supplies power to the magnetically controlled power unit 3, the magnetically controlled power unit 3 generates magnetism, and the magnetism generated by the opposing magnetically controlled power units 3 is repulsive, which can increase the distance between the opposing magnetically controlled power units 3. At this time, the diameter of the inner pipe 1 is expanded by the reinforcing rib 101. When the inner pipe 1 is expanded, the length of the inner permeation hole 11 on the inner pipe 1 is stretched, the overall opening area of ​​the inner permeation hole 11 becomes larger, the liquid inflow through the inner permeation hole 11 becomes larger, and the amount of leachate absorbed by the permeation water pipe is increased.

[0029] Further reference Figure 9 As shown, a monitoring unit 6 is also installed on the permeable water pipe. The monitoring unit 6 integrates a water pressure sensor, a flow sensor and a water quality sensor (other types of sensors can also be installed according to actual needs to form a multi-parameter sensor network).

[0030] The water pressure sensor, model SST PRESS-S-001, is located outside the permeate pipe. It has a range of 0-10 bar, an accuracy of ±0.1%, and an output signal of 4-20mA. It exhibits excellent corrosion resistance and can monitor water pressure fluctuations outside the permeate pipe in real time, preventing pipe bursts due to overpressure. When the water pressure increases, the controller adjusts the permeability of the permeate pipe to increase the amount of leachate absorbed. Conversely, when the water pressure decreases, the controller adjusts the permeability of the permeate pipe to reduce the amount of leachate absorbed.

[0031] The flow sensor is installed inside the permeable water pipe. The flow sensor model is FS1015CL-150, with a range of 0-150 L / min and an accuracy of ±2%. It is suitable for permeable water pipes with a diameter of 25~50mm (other models of flow sensors can also be selected according to the actual pipe diameter). The flow sensor accumulates and counts the flow rate in the permeable water pipe. When the flow rate deviates from the set value, the controller automatically adjusts the permeability to the target value.

[0032] The water quality sensor, model SEN0189, is installed inside the water pipe. It monitors suspended solids in the permeable water pipe. When the sediment in the permeable water pipe exceeds the set threshold, the sensor sends a signal to the control terminal (computer, tablet, or mobile phone) via the controller, notifying staff to come for cleaning and maintenance. It is simple and convenient to use.

[0033] refer to Figure 14 As shown, the controller uses an STM32F4 chip and connects to the water pressure sensor, flow sensor, and water quality sensor via an RS485 bus. The controller is connected to the magnetic power unit 3 and the input terminal of the control terminal. When the controller receives a signal from the water pressure sensor, flow sensor, or water quality sensor, it feeds the information back to the control terminal or magnetic power unit 3. The magnetic power unit 3 is then turned on to adjust the permeability of the permeation pipe.

[0034] A wire hole is provided on the connecting pipe 4 for the monitoring unit 6 to connect to an external power source. The wire hole is not shown in the figure and is a common existing technology, so it will not be described in detail here.

[0035] In summary, the multi-parameter sensor network formed by the monitoring unit 6 and the magnetically controlled power unit 3 in this invention realizes closed-loop control of "perception-decision-execution" and achieves intelligent adjustment of the permeability of the permeable water pipe.

[0036] It should be noted that the inner pipe 1 can be made of corrosion-resistant elastic metal pipe or elastic plastic pipe, such as 316L stainless steel corrugated pipe, silicone rubber and fluororubber, etc. The inner pipe 1 can be elastically deformed within a certain range, but it needs to be coated with a corrosion-resistant coating or treated with other corrosion-resistant processes to ensure its service life.

[0037] Accordingly, when it is necessary to further adjust the amount of seepage entering the inner pipe 1, the current supplied to the magnetic control power unit 3 is adjusted. The strength of the magnetic control power unit 3 is changed according to the magnitude of the current, so that the diameter of the inner pipe 1 can be adjusted. When the direction of the current is adjusted, the magnetic attraction between adjacent magnetic control power units 3 can also reduce the diameter of the inner pipe 1 accordingly, making the adjustment relatively convenient.

[0038] In summary, the method of providing magnetically controlled power units 3 on the surface of the reinforcing rib 101 in this invention can not only maintain the saturation of the inner pipe 1 by utilizing the magnetic attraction or repulsion between the magnetically controlled power units 3, but also adjust the amount of water seepage.

[0039] Example 3 refer to Figures 6 to 10As shown, considering that the permeable water pipe contains a lot of impurities after long-term use, which can easily clog the permeable water pipe and cause a decrease in permeability, a filter plate 5 is also installed in the inner pipe 1. The filter plate 5 is a circular filter screen structure with mesh. The outer ring of the filter plate 5 is movably attached to the inner wall of the inner pipe 1. The outer ring of the filter plate 5 is also provided with a rectangular groove for the reinforcing rib 101 to move through. Several filter plates 5 are installed in the permeable water pipe and are evenly distributed. When the permeable water pipe is used for a long time, impurities will adhere to its inner wall. If it is not cleaned for a long time, the impurities will stick together and become deposits that clog the permeable water pipe. The several filter plates 5 can separate the deposits in the permeable water pipe into each section, avoiding the phenomenon of frequent clogging caused by the accumulation of deposits.

[0040] Furthermore, the permeable pipe is composed of multiple sections, each connected by a connecting pipe 4. Both ends of the connecting pipe 4 are secured to the ends of the permeable pipe with fastening bolts 401, ensuring a leak-proof seal between the connecting pipe 4 and the permeable pipe. A connecting rope 402 is connected to the inner ring of the connecting pipe 4, and the connecting rope 402 is distributed along the direction of the permeable pipe and connected to the corresponding filter plate 5. After removing the fastening bolts 401, a portion of the connecting pipe 4 can be slid onto an adjacent section of the permeable pipe. The connecting rope 402 can then be used to pull out the filter plate 5. During the process of pulling out the filter plate 5, all the deposits in this section of the permeable pipe are scraped out, facilitating regular cleaning and maintenance.

[0041] refer to Figure 1 As shown, after cleaning the inside of the permeable water pipe, the filter plate 5 can be pushed back to its original position at the end of the permeable water pipe using an auxiliary tool such as a long elastic rod; the connecting pipe 4 is usually set at the maintenance well 706 of the buried permeable water pipe for easy maintenance; the corrosion-resistant pump body 707 is set at the wellhead and connected to the permeable water pipe through a pipeline.

[0042] It should be noted that the filter plate 5 has a certain thickness, which is generally designed according to the diameter of the permeable water pipe. For example, a permeable water pipe with a diameter of 50~60cm is equipped with a filter plate 5 with a thickness of 3~5cm to ensure that the connecting rope 402 can be pulled out smoothly. The filter plate 5 can only move along the length of the permeable water pipe without deviating.

[0043] Example 4 refer to Figure 11 and Figure 12 As shown in the figure, the present invention improves the magnetically controlled power unit 3, so that the permeable water pipe can meet the needs of multiple scenarios, such as irrigation needs and underground drainage needs. In this invention, the magnetically controlled power unit 3 includes an iron core 31, a coil 32, and a housing 33. The iron core 31 is disposed inside the housing 33, and the coil 32 is wound around the iron core 31 to form an electromagnetic drive unit. When the coil 32 is energized, the opposing magnetically controlled power units 3 generate magnetic repulsion or attraction forces, causing the diameter of the permeable water pipe to expand or shrink. However, due to the combination of the magnetically controlled power unit 3 and the reinforcing rib 101, the permeable water pipe always maintains a good saturated shape and is not easily affected by the stress of the underground soil, thus meeting the drainage requirements.

[0044] The coil 32 includes a nickel-chromium alloy layer 321 and a copper core 322. The nickel-chromium alloy layer 321 is wrapped around the copper core 322 to form a double-layer copper-nickel-chromium composite wire. The nickel-chromium alloy layer 321 accounts for 60% of the cross-sectional area of ​​the coil 32 and is responsible for heating. The copper core 322 accounts for 40% of the cross-sectional area of ​​the coil 32 and is responsible for conducting electricity and reducing the total resistance. Through material composite, a compromise can be achieved between heating and magnetic field.

[0045] During operation, current can be passed into coil 32. The heat generated by the nickel-chromium alloy layer 321 will be transferred to the water in the permeation pipe through heat exchange in the shell 33, heating the water to 20~100°C. Water at around 20~60°C, when used for irrigation, will not damage the soil's ecological environment, but will promote the absorption of plant roots and cell activity, accelerate the decomposition of soil organic matter, avoid cold water damage, and help improve plant growth. Water at 60~100°C, when used for irrigation, has a certain bactericidal, insecticidal, and weed-killing effect, and is suitable for irrigation during land reclamation. It can effectively reduce the number of pathogens of soil-borne diseases, reduce the amount of pesticides used, and can be used as a green means of disease and pest control.

[0046] Water at 60-70°C can dissolve some of the calcium and magnesium salts in the water when used for irrigation, reducing their precipitation and scaling during irrigation, thereby extending the service life of the permeable water pipes and ensuring the stable operation of the irrigation system.

[0047] Table 1. Detailed parameters of the coil

[0048] Table 2 Performance Prediction Table of Magnetic Control Power Unit

[0049] As shown in Table 2, the magnetically controlled power unit 3 using coil 32 has a 77% decrease in central magnetic field strength and a 35% decrease in thermal power. Both the heating capacity and the range of magnetic field action have decreased. However, the use of coil 32 breaks through the traditional technology that coils cannot simultaneously function as electromagnets and heating wires.

[0050] In practical applications, the nickel-chromium alloy layer 321 and the copper core 322 can be connected in parallel. The inner layer uses a nickel-chromium heating wire with a specification of 0.3mm × 500 turns × 3m = 10Ω; the outer layer uses a copper wire with a specification of 0.5mm × 300 turns × 5m = 0.4Ω; and a 0.1mm polyimide film is used to achieve insulation between the inner and outer layers.

[0051] Example 5 refer to Figure 13 As shown, the present invention also provides a method for adjusting a permeation pipe, wherein the outer pipe 2 and the inner pipe 1 are configured as a pipe structure with internal and external threaded connections. The outer pipe 2 is provided with a plurality of external permeation holes 21, which penetrate both the inner and outer walls of the outer pipe 2. The plurality of external permeation holes 21 correspond one-to-one with the plurality of internal permeation holes 11 on the inner pipe 1. When the outer pipe 2 is rotated and adjusted, the communication area between the internal permeation holes 11 and the external permeation holes 21 is controlled, thereby adjusting the permeation volume of the permeation pipe. However, this method is generally applicable to ground pipes, requires manual operation, and has certain defects, and is only applicable to certain fields.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A coal chemical wastewater treatment system, comprising a permeable pipe, wherein the permeable pipe is buried in an intermediate layer (704) between a main impermeable layer (703) and a secondary impermeable layer (705), characterized in that, Also includes: The inner pipe (1) has an inner permeation hole (11) on its wall. The inner pipe (1) is made of corrosion-resistant elastic metal or elastic plastic. The outer pipe (2) is fitted around the inner pipe (1) and is made of a fabric layer, a sponge layer or other absorbent and permeable material. The magnetic control power unit (3) is installed on the reinforcing rib (101) on the inner wall of the inner pipe (1). After the magnetic control power unit (3) is powered on, it generates magnetism and adjusts the pipe diameter of the inner pipe (1) in real time by magnetic attraction / repulsion, thereby changing the opening area of ​​the inner permeation hole (11).

2. The coal chemical wastewater treatment system according to claim 1, characterized in that: The permeation pipe is equipped with a monitoring unit (6), which integrates a water pressure sensor, a flow sensor, and a water quality sensor. The monitoring unit (6) is connected to the magnetic power unit (3) through a controller.

3. The coal chemical wastewater treatment system according to claim 1, characterized in that: The leachate absorbed by the permeation pipe is transported to the treatment tank through a corrosion-resistant pump body (707).

4. The coal chemical wastewater treatment system according to claim 3, characterized in that: The inner pipe (1) is provided with a filter plate (5), which is a circular filter structure with mesh. The outer ring of the filter plate (5) is movably attached to the inner wall of the inner pipe (1) and is provided with a rectangular groove for the reinforcing rib (101) to pass through. The permeation pipe is provided in multiple sections, which are connected by a connecting pipe (4). The connecting pipe (4) is provided with a connecting rope (402) that is connected to the filter plate (5).

5. The coal chemical wastewater treatment system according to claim 1, characterized in that: The permeable water pipe is either buried underground or laid above ground; When the infiltration pipe is buried underground, a maintenance well (706) is dug at the position corresponding to the connecting pipe (4).

6. The coal chemical wastewater treatment system according to claim 4, characterized in that: The filter plate (5) moves along the length of the permeate pipe.

7. The coal chemical wastewater treatment system according to claim 1, characterized in that: The magnetically controlled power unit (3) also includes a housing (33), the iron core (31) is disposed inside the housing (33), and the housing (33) is mounted on the surface of the reinforcing rib (101).

8. The coal chemical wastewater treatment system according to claim 1, characterized in that: The outer pipe (2) and the inner pipe (1) are threaded together. The outer pipe (2) is provided with an outer permeation hole (21) corresponding to the inner permeation hole (11).

9. A processing device, characterized in that: When used in conjunction with the coal chemical wastewater treatment system according to any one of claims 3-8, it further includes: Maintenance well (706), maintenance well (706) extends to the connecting pipe (4) on the inner pipe (1); The corrosion-resistant pump body (707) is installed at the wellhead of the maintenance well (706).

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