A device for treating high salinity coking wastewater

Abstract

The present application belongs to the technical field of sewage treatment device, and particularly relates to a high-salinity coking sewage treatment device. The high-salinity coking sewage treatment device comprises a sewage treatment assembly and a water pumping mechanism. The water pumping mechanism comprises a shell, a water outlet pipeline and a water inlet filter plate water inlet unit. The shell and the two adjacent water inlet filter plates form a water filtering chamber. One water inlet unit is arranged in each water filtering chamber. The water inlet unit has a water inlet and a water outlet. The water inlet extends from the shell to allow sewage to enter. The water outlet is in communication with the water filtering chamber. The size of the water inlet is adjustable. When the included angle between the two adjacent water inlet filter plates increases, the water inlet is reduced or closed. In use, the pressure difference generated in the two adjacent water filtering chambers can automatically clean the clogged water inlet filter plate, so that the water pumping mechanism is not easily clogged, and the working efficiency of the sewage treatment device is improved.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment equipment technology, and in particular relates to a treatment device for high-salinity coking wastewater. Background Technology

[0002] With the development of the environmental protection industry, all coking plants have been equipped with phenol and cyanide wastewater treatment stations to treat wastewater generated during coking, gas purification, and chemical product recovery. Even after deep treatment, a portion of coking wastewater remains, characterized by high hardness, high chemical oxygen demand (COD), and high salinity. Based on the recovery rate of this project, the final concentrate conductivity reaches as high as 30,000 µS / cm. Research indicates that a combination of high-organic-content and high-salt-content special membrane technologies is needed for deep treatment of this wastewater to reduce the amount of wastewater discharged.

[0003] In the process of deep treatment of sewage, the pumping mechanism of the sewage treatment device is required to pump the sewage from the sewage tank into the deep treatment component. However, due to the large amount of floating matter and sediment in the sewage tank, the pumping mechanism is easily blocked, affecting the pumping efficiency and thus the working efficiency of the sewage treatment device. Summary of the Invention

[0004] Therefore, it is necessary to provide a treatment device for high-salinity coking wastewater to address the existing problems and solve the problem that existing wastewater treatment devices are prone to clogging when pumping wastewater.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A treatment device for high-salinity coking wastewater includes a wastewater treatment component and a pumping mechanism, the pumping mechanism comprising:

[0007] case;

[0008] The outlet pipe, located in the middle of the housing, is used to supply wastewater to the wastewater treatment components;

[0009] The outlet pipe is provided with multiple inlet filter plates that can swing around the axis of the outlet pipe in the circumferential direction. The inlet filter plates are used to filter sewage and have inlet plate cavities that are connected to the outlet pipe.

[0010] The shell and two adjacent inlet filter plates form a water filtration chamber, and each water filtration chamber is equipped with a corresponding water inlet unit.

[0011] The water inlet unit has an inlet and an outlet. The inlet extends from the housing to allow sewage to enter, and the outlet is connected to the filter chamber. The size of the inlet is adjustable. When the included angle between two adjacent inlet filter plates increases, the inlet shrinks or closes.

[0012] Two adjacent water inlet units are arranged in two ways: one is located on the upper side of the water filtration chamber with the inlet facing upwards, and the other is located on the lower side of the adjacent water filtration chamber with the inlet facing downwards.

[0013] Furthermore, the water inlet unit includes an inlet cylinder and a sealing assembly. The inlet and outlet are located on the inlet cylinder. The sealing assembly is driven by the inlet filter plate. When the included angle between two adjacent inlet filter plates increases, the sealing assembly shrinks or closes the inlet.

[0014] Furthermore, the sealing assembly includes a sealing plate and a push rod assembly. The push rod assembly includes a hinged rod and a telescopic push rod with adjustable length. The first end of the telescopic push rod is fixedly connected to the sealing plate. There are two hinged rods. The first ends of the two hinged rods are respectively hinged to two adjacent inlet filter plates. The second end of the hinged rod is hinged to the second end of the telescopic push rod. The sealing plate is used to reduce or close the inlet.

[0015] Furthermore, the water inlet cylinder is made of rubber and is fixedly connected to the water inlet filter plate. When the included angle between two adjacent water inlet filter plates increases, the water inlet cylinder is stretched and undergoes elastic deformation.

[0016] Furthermore, the surface of the water inlet cylinder is provided with a guide surface, and the guide slope is used to guide impurities in the water filtration chamber toward the end where the water inlet of the water inlet cylinder is located.

[0017] Furthermore, the guiding surface is an arc-shaped conical surface, and the cross-section of the water inlet cylinder gradually decreases from the end where the water inlet is located to the other end.

[0018] Furthermore, the housing can extend and retract axially along the outlet pipe, and the end of the inlet filter plate has a telescopic plate segment that can extend and retract axially along the outlet pipe. The telescopic plate segment is fixedly connected to the adjacent inlet unit, and the telescopic plate segment is also fixedly connected to the end of the corresponding housing. The inlet unit can slide axially along the outlet pipe.

[0019] Furthermore, the shell includes an upper shell section and a lower shell section, which are slidably and sealingly connected to each other.

[0020] Furthermore, the surface of the inlet filter plate is provided with filter mesh holes.

[0021] Furthermore, a float is connected to the upper end of the shell, and a sinker is connected to the lower end of the shell.

[0022] The beneficial effects of this invention are as follows: In use, the high-salinity coking wastewater treatment device of this invention allows wastewater to enter the filtration chamber from the inlet of the upward-facing inlet unit and the inlet of the adjacent downward-facing inlet unit. The upward-facing inlet receives wastewater near the surface of the wastewater tank, while the downward-facing inlet receives wastewater near the bottom of the tank. The inlet filter plate filters the wastewater, causing impurities to remain in the filtration chamber. When the wastewater entering through one inlet contains a large amount of impurities, it can clog part of the inlet filter plate in that filtration chamber, leading to blockage of that filtration chamber. The increased pressure in the chamber increases the angle between the two inlet filter plates forming the filtration chamber, thereby reducing or closing the inlet of the inlet unit in the filtration chamber, which in turn reduces the pressure in the filtration chamber. When a pressure difference occurs between two adjacent filtration chambers, the sewage in the filtration chamber where the inlet unit with the unchanged inlet is located will flush the surface of the blocked inlet filter plate, flushing impurities into the filtration chamber with lower pressure. This achieves automatic cleaning of the blocked inlet filter plate, making the pumping mechanism less prone to clogging and improving the working efficiency of the sewage treatment device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the high-salinity coking wastewater treatment device of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the pumping mechanism of a high-salinity coking wastewater treatment device;

[0025] Figure 3 for Figure 2 Front view of the pumping mechanism;

[0026] Figure 4 for Figure 3 A schematic diagram of the water outlet pipe, water inlet filter plate, and water inlet unit of the water pumping mechanism;

[0027] Figure 5 for Figure 4 The main view;

[0028] Figure 6 for Figure 5 Sectional view along axis AA;

[0029] Figure 7 for Figure 5 Axonometric view of the structure after AA sectioning;

[0030] Figure 8 for Figure 5 BB-direction sectional view;

[0031] in:

[0032] 100. Wastewater treatment component; 200. Manifold; 210. Manifold branch pipe; 300. Pumping mechanism; 310. Housing; 312. Upper housing section; 314. Lower housing section; 316. Float; 318. Settling block; 320. Outlet pipe; 322. Adapter; 330. Inlet filter plate; 332. Inlet plate cavity; 334. Filter chamber; 336. Telescopic plate section; 340. Inlet unit; 341. Inlet cylinder; 342. Inlet; 343. Outlet; 344. Sealing plate; 345. Inlet flow channel; 346. Hinge rod; 348. Telescopic push rod. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0034] The serial numbers assigned to components in this document, such as "first," "second," etc., are merely used to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] The high-salinity coking wastewater treatment apparatus of the present invention will now be described in conjunction with the accompanying drawings and specific embodiments.

[0037] Example 1 of the high-salinity coking wastewater treatment device of the present invention:

[0038] like Figure 1As shown, the high-salinity coking wastewater treatment device of this embodiment includes a wastewater treatment component 100 and a pumping mechanism 300, and also includes a manifold 200 connecting the wastewater treatment component 100 and the pumping mechanism 300, with a pump connected to the manifold 200. In use, the pumping mechanism 300 is placed in a wastewater tank, and the pumped wastewater is injected into the wastewater treatment component 100 through the manifold 200, where the wastewater treatment component 100 purifies the wastewater. In this embodiment, the wastewater treatment component 100 is a membrane treatment component.

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, the pumping mechanism 300 includes a housing 310, an outlet pipe 320, an inlet filter plate 330, and an inlet unit 340. The housing 310 includes an upper housing section 312 and a lower housing section 314, which are slidably and sealingly fitted together. The manifold 200 includes two manifold branches 210, each connected to a pump. The outlet pipe 320 passes through the housing 310 and is coaxially arranged with the housing 310. The outlet pipe 320 is a rigid pipe, consisting of two pipe sections slidably fitted together, which can extend and retract with the length of the housing 310. The two manifold branches 210 are connected to the outlet pipe 320 via adapters 322. The manifold 200 is a flexible hose, and the length of the manifold branches 210 is reserved to accommodate the maximum size of the housing 310. A high-density sinker 318 is fixedly connected to the bottom surface of the lower shell section 314 via a connecting rod, and a low-density float 316 is fixedly connected to the upper end surface of the upper shell section 310 via a connecting rod. When the pumping mechanism 300 is placed in the sewage tank, the sinker 318 sinks and contacts the bottom of the sewage tank, while the float 316 floats to the surface of the sewage. When the depth of the sewage exceeds the minimum dimension of the shell section 310, the float 316 will drive the upper shell section 312 to move upward, thereby elongating the shell section 310.

[0040] like Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, there are six inlet filter plates 330, which are evenly distributed around the circumference of the outlet pipe 320 and hinged to the outlet pipe 320, thus allowing them to swing circumferentially around the axis of the outlet pipe 320. An inlet plate cavity 332 is provided inside the inlet filter plate 330, and filter holes are provided on the plate surfaces on both sides of the inlet plate cavity 332. Connecting holes are provided on the hinged end face of the inlet filter plate 330 and the outer circumferential surface of the outlet pipe 320, allowing the inlet plate cavity 332 to communicate with the outlet pipe 320. The housing 310 and two adjacent inlet filter plates 330 form a water filtration chamber 334. The water inlet unit 340 is disposed in the water filtration chamber 334, and only one water inlet unit 340 is disposed in each water filtration chamber 334. The water inlet unit 340 has an inlet channel 345. The two ends of the inlet channel 345 are respectively provided with an inlet 342 and an outlet 343. Two adjacent water inlet units 340 are disposed on the upper side of the water filtration chamber 334 with the inlet 342 facing upward, and on the lower side of the adjacent water filtration chamber 334 with the inlet 342 facing downward.

[0041] like Figure 4 , Figure 6 and Figure 7 As shown, the water inlet unit 340 includes a water inlet cylinder 341 and a sealing assembly. The water inlet cylinder 341 is made of an elastic material that can be stretched under tension and compressed under pressure. For example, the water inlet cylinder 341 can be made of rubber. The water inlet cylinder 341 is generally fan-shaped and has an arc-shaped conical surface. The water inlet channel 345 is set on the water inlet cylinder 341. A water inlet sleeve is set on the horizontal end face of the water inlet cylinder 341. The water inlet sleeve is made of rigid plastic. One end of the water inlet sleeve is fixedly connected to the housing 310, and the other end of the water inlet sleeve is fixedly connected to the water inlet cylinder 341. The water inlet sleeve forms the water inlet 342. The water inlet sleeve penetrates the housing 310 in the vertical direction and extends out of the housing 310 to allow water from the sewage tank to enter the water inlet 342. The water outlet 343 is set on the arc-shaped conical surface. The arc-shaped conical surface serves as a guiding surface and can guide impurities in the water filtration chamber 334 to the large-diameter end of the water inlet cylinder 341.

[0042] like Figure 4 , Figure 7 and Figure 8 As shown, a settling tank for accommodating the sealing assembly is provided on the end face of the water inlet cylinder 341. Figure 4(The settling tank and sealing assembly on the inlet cylinder 341 are not shown.) The sealing assembly includes a sealing plate 344 and a connecting rod assembly. The connecting rod assembly includes two hinged rods 346 and a telescopic push rod 348. The first end of the telescopic push rod 348 is fixedly connected to the sealing plate 344. The first ends of the two hinged rods 346 are respectively hinged to the ends of two adjacent inlet filter plates 330. The second ends of the two hinged rods 346 are hinged to the second end of the telescopic push rod 348. The telescopic push rod 348 is composed of two rod segments that slide together and can be extended and shortened. The side wall of the inlet sleeve is provided with a slot for the sealing plate 344 to be inserted. The sealing plate 344 has one-way locking teeth on both side walls, similar to ratchet teeth. The slot has retractable latches on its side walls, including a tongue-shaped plate and a spring. The tongue-shaped plate, similar to a pawl, is angled, with one end hinged to the slot wall and the other end engaging with the one-way locking teeth. One end of the spring is fixed to the slot wall, and the other end is fixed to the middle of the tongue-shaped plate. When the sealing plate 344 is inserted into the slot, the one-way locking teeth push the tongue-shaped plate to swing closer to the slot wall, shortening the spring and allowing the sealing plate 344 to smoothly insert into the slot. When the sealing plate 344 is removed from the slot, the one-way caliper will block the tongue plate. Since the spring cannot be stretched further, the tongue plate cannot swing under the spring's obstruction, and thus the sealing plate 344 cannot be removed. At this time, the removable snap fastener is in the closed state. When the tongue plate is swung towards the slot wall to avoid the sealing plate 344, the removable snap fastener is in the open state. When the removable snap fastener is in the closed state, the sealing plate 344 can only enter the slot and cannot be pushed out. When the removable snap fastener is opened, the sealing plate 344 can be pulled out of the slot. In the initial state, the sealing plate 344 is located at the slot of the inlet sleeve. The one-way locking teeth of the sealing plate 344 engage with the end of the tongue plate, preventing the sealing plate 344 from exiting the slot. The telescopic push rod 348 is in its shortest state. When the included angle between adjacent inlet filter plates 330 increases, the two hinge rods 346 push the telescopic push rod 348 to move towards the axis of the outlet pipe 320. At this time, the telescopic push rod 348 pushes the sealing plate 344 into the inlet sleeve, thereby reducing or closing the inlet 342. When the included angle between adjacent inlet filter plates 330 decreases, the telescopic push rod 348 will extend. Since the retractable latch is in the closed state, the sealing plate 344 will not be pulled out of the slot.

[0043] like Figure 2 , Figure 7 and Figure 8As shown, the inlet filter plate 330 includes an intermediate plate section and two telescopic plate sections 336. The two telescopic plate sections 336 are movably inserted into the upper and lower ends of the intermediate plate section along the axial direction of the outlet pipe 320. Each telescopic plate section 336 has a maximum extension stroke. Specifically, the intermediate plate section is provided with a guide groove extending along the axial direction of the outlet pipe 320, and the telescopic plate section 336 is provided with a guide pin that slides with the guide groove. When the guide pin moves to the end of the guide groove, the telescopic plate section 336 reaches its maximum extension stroke. When the telescopic plate section 336 reaches this stroke, the guide pin stops with the inner wall surface at the end of the guide groove, and the telescopic plate section 336 can drive the intermediate plate section to move. The telescopic plate section 336 is fixedly connected to the large-diameter end of the adjacent inlet cylinder 341, and the inlet cylinder 341 can slide along the axial direction of the outlet pipe 320. The two telescopic plate sections 336 are also fixedly connected to the ends of the corresponding upper shell section 312 or lower shell section 314. When the upper shell section 312 of the housing 310 rises, it can drive the water inlet cylinder 341 and the telescopic plate section 336 to move upward, thereby adapting to sewage tanks of different depths.

[0044] The operation process of the high-salinity coking wastewater treatment device in this embodiment is as follows:

[0045] In use, the pumping mechanism 300 is placed in the sewage tank. The sinker 318 sinks and contacts the bottom of the sewage tank, while the float 316 floats to the surface of the sewage. When the depth of the sewage exceeds the minimum size of the housing 310, the float 316 will drive the upper housing section 312 to move upward, thereby extending the housing 310. At the same time, the upper housing 310 will drive the telescopic plate section 336 at the upper end of the inlet filter plate 330 and the corresponding inlet cylinder 341 to move upward. If the depth of the sewage is large, when the displacement of the upper telescopic plate section 336 reaches the maximum extension stroke, the upper telescopic plate will also drive the middle plate section to move upward, causing the middle plate section to slide relative to the lower telescopic plate section 336.

[0046] After the pumping mechanism 300 is placed stably, the pump is turned on. Wastewater enters the corresponding inlet cylinder 341 simultaneously from the upper and lower inlets 342, and then enters the filter chamber 334 from the outlet 343 of the inlet cylinder 341. It then enters the inlet plate cavity 332 of the filter chamber 334. Because the surface of the inlet filter plate 330 has filter mesh holes, the wastewater is filtered during its entry into the inlet plate cavity 332, and impurities are stored in the filter chamber 334. The wastewater in the inlet plate cavity 332 enters the outlet pipe 320 and then enters the manifold pipe 200 from the openings at both ends of the outlet pipe 320. The wastewater in the manifold pipe 200 finally flows into the wastewater treatment component 100, where it is purified. Because the floating impurities in the upper layer and the sediment impurities in the lower layer are filtered into different filter chambers 334, it facilitates the subsequent collection and cleaning of impurities.

[0047] During the pumping process, if there are many floating impurities in the sewage tank, the filter mesh on the surface of the inlet filter plate 330 adjacent to the upper inlet cylinder 341 will be blocked. Since the sewage cannot enter the inlet plate cavity 332 of the inlet filter plate 330 in time, the pressure in the filtration chamber 334 where the upper inlet cylinder 341 is located increases, which will push the included angle between the two inlet filter plates 330 surrounding the filtration chamber 334 to increase. Since the inlet cylinder 341 is made of elastic material, the upper inlet cylinder 341 is stretched and the lower inlet cylinder 341 is compressed. Driven by the inlet filter plate 330, the two hinge rods 346 of the linkage assembly will push the telescopic push rod 348 to move towards the axis of the outlet pipe 320, thereby causing the telescopic push rod 348 to push the sealing plate 344 into the inlet sleeve, thereby reducing or closing the inlet 342. The angle between the two inlet filter plates 330 in the filter chamber 334 where the lower inlet cylinder 341 is located is reduced. Since the telescopic push rod 348 is telescopic, and in the initial state, the sealing plate 344 is located at the slot of the inlet sleeve, the one-way locking teeth of the sealing plate 344 cooperate with the end of the tongue plate, and the sealing plate 344 cannot be withdrawn from the slot. The telescopic push rod 348 is in the shortest state. Therefore, the inlet filter plate 330 drives the telescopic push rod 348 to extend, which will not change the position of the sealing plate 344 connected to it.

[0048] It should be noted that the surface of the inlet filter plate 330 is not completely blocked, but the flow capacity is greatly reduced. Because the inlet 342 is reduced or closed and the upper inlet cylinder 341 is stretched and expanded, the pressure in the filter chamber 334 containing the upper inlet cylinder 341 decreases rapidly. Simultaneously, because the lower inlet cylinder 341 is compressed, the filter chamber 334 shrinks. With the inlet 342 remaining unchanged, the pressure in the filter chamber 334 increases. During this process, when two adjacent filter chambers... When a pressure difference exists in 334, after the sewage in the filter chamber 334 where the lower inlet cylinder 341 is located enters the inlet plate cavity 332, some of the sewage will flush the clogged filter screen holes, and flush the floating impurities in the filter screen holes into the filter chamber 334 with lower pressure. This achieves automatic cleaning of the clogged filter screen holes and improves the working efficiency of the sewage treatment device. The cleaned impurities are guided by the guide slope of the filter cylinder and converge at the large diameter end of the inlet cylinder 341, which is convenient for subsequent collection and cleaning.

[0049] Because the inlet cylinder 341 is elastic, the stretched upper inlet cylinder 341 will gradually return to its normal state, and the included angle between the two adjacent inlet filter plates 330 will return to its original position. In addition, because the filter mesh on the inlet filter plate 330 is unobstructed, and the inlet cylinder 341 itself is also elastic (deformation requires overcoming the elastic force), even if the two adjacent inlets 342 are of different sizes, the inlet filter plate 330 is not easy to rotate, and thus the opening of the lower inlet cylinder 341 is not easily blocked by the corresponding blocking plate 344.

[0050] Since the blocking plate 344 can only move in one direction in the slot of the inlet 342, the inlet 342 of the upper inlet cylinder 341 is in a reduced or closed state. Therefore, the upper water with more floating impurities in the sewage tank will not be used as the main water supply source. Consequently, the inlet 342 of the lower inlet cylinder 341 serves as the main inlet 342 to supply water to the sewage treatment component 100, thus making it less likely for the pumping mechanism 300 to become blocked.

[0051] In addition, if there are many sediments and impurities in the lower layer of the sewage tank, the inlet 342 of the lower inlet cylinder 341 will be reduced or closed after the initial pumping. The lower water will not be used as the main water supply source. Instead, the inlet 342 of the upper inlet cylinder 341 will be used as the main inlet 342 to supply water to the sewage treatment component 100, thus making it less likely for the pumping mechanism 300 to become blocked.

[0052] Example 2 of the high-salinity coking wastewater treatment device of the present invention:

[0053] The guide surface on the water inlet cylinder is an inclined plane.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A treatment device for high-salinity coking wastewater, characterized in that, Includes wastewater treatment components and a pumping mechanism, the pumping mechanism including: case; The outlet pipe, located in the middle of the housing, is used to supply wastewater to the wastewater treatment components; The outlet pipe is provided with multiple inlet filter plates that can swing around the axis of the outlet pipe in the circumferential direction. The inlet filter plates are used to filter sewage and have inlet plate cavities that are connected to the outlet pipe. The shell and two adjacent inlet filter plates form a water filtration chamber, and each water filtration chamber is equipped with a corresponding water inlet unit. The water inlet unit has an inlet and an outlet. The inlet extends from the housing to allow sewage to enter, and the outlet is connected to the filter chamber. The size of the inlet is adjustable. When the included angle between two adjacent inlet filter plates increases, the inlet shrinks or closes. Two adjacent water inlet units are arranged in two ways: one is located on the upper side of the water filtration chamber with the inlet facing upwards, and the other is located on the lower side of the adjacent water filtration chamber with the inlet facing downwards. The water inlet unit includes an inlet cylinder and a sealing assembly. The inlet and outlet are located on the inlet cylinder. The sealing assembly is driven by the inlet filter plate. When the included angle between two adjacent inlet filter plates increases, the sealing assembly shrinks or closes the inlet. The sealing assembly includes a sealing plate and a push rod assembly. The push rod assembly includes a hinged rod and a telescopic push rod with adjustable length. The first end of the telescopic push rod is fixedly connected to the sealing plate. There are two hinged rods. The first ends of the two hinged rods are respectively hinged to two adjacent inlet filter plates. The second end of the hinged rods is hinged to the second end of the telescopic push rod. The sealing plate is used to reduce or close the inlet. The water inlet cylinder is made of rubber and is fixedly connected to the water inlet filter plate. When the included angle between two adjacent water inlet filter plates increases, the water inlet cylinder is stretched and undergoes elastic deformation. The surface of the water inlet cylinder is provided with a guide surface, and the guide slope is used to guide impurities in the water filtration chamber toward the end where the water inlet of the water inlet cylinder is located; The guiding surface is an arc-shaped conical surface, and the cross-section of the water inlet cylinder gradually decreases from the end where the water inlet is located to the other end.

2. The treatment apparatus for high-salinity coking wastewater according to any one of claims 1, characterized in that, The housing can extend and retract axially along the outlet pipe. The end of the inlet filter plate has a telescopic plate segment that can extend and retract axially along the outlet pipe. The telescopic plate segment is fixedly connected to the adjacent inlet unit and is also fixedly connected to the end of the corresponding housing. The inlet unit can slide axially along the outlet pipe.

3. The treatment device for high-salinity coking wastewater according to claim 2, characterized in that, The shell consists of an upper shell section and a lower shell section, which are slidably and sealingly connected to each other.

4. The treatment apparatus for high-salinity coking wastewater according to any one of claims 1, characterized in that, The inlet filter plate has filter mesh holes on its surface.

5. The treatment apparatus for high-salinity coking wastewater according to any one of claims 1, characterized in that, A float is connected to the upper end of the shell, and a sinker is connected to the lower end of the shell.

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