Zero-emission multi-stage wastewater treatment device for industrial high-salinity wastewater

Abstract

The application relates to the technical field of wastewater treatment equipment, in particular to a zero-emission multistage wastewater treatment device for industrial high-salinity wastewater, which comprises a base, a fixing frame fixedly installed on the base and a supporting limiting frame fixedly installed on the fixing frame, the supporting limiting frame is slidably connected with a heat exchange box, the front end face of the fixing frame is provided with limiting assemblies corresponding to the heat exchange box on both sides, a sedimentation tank and a core treatment tank are installed on the fixing frame from top to bottom and located at the bottom of the heat exchange box, the heat exchange box, the sedimentation tank and the core treatment tank are sequentially communicated through connecting channels, a feeding pipe is arranged on the side wall of the sedimentation tank, the sealing assembly is driven to rotate by a motor-driven screw rod, the extrusion frame is driven to slide along the guide column, the pressure of the extrusion frame on the third sealing frame can be automatically adjusted, the extrusion plate can be tightly combined with the third sealing frame, the pressure is uniformly distributed, the traditional manual sealing adjustment mode is replaced, and the sealing reliability is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment equipment, in particular to a zero-emission multi-stage wastewater treatment device for industrial high-salinity wastewater. BACKGROUND

[0002] Industrial high-salinity wastewater is widely generated in many industries such as chemical industry, pharmaceutical industry, printing and dyeing industry, and seawater desalination. The water quality of the wastewater is complex, containing not only high-concentration salt substances (such as sodium chloride and sodium sulfate), but also pollutants such as refractory organic matter and heavy metal ions. When the high-salinity wastewater penetrates into the soil, it will break the original ion balance and aggregate structure of the soil, cause soil compaction, significantly reduce the air and water permeability of the soil, destroy the soil microbial community, and lead to permanent degradation of soil fertility, affecting agricultural production and sustainable use of land. Discharge of the wastewater will also pollute the groundwater, and if the contaminated groundwater is used as a source of drinking water, it will lose the function of drinking water and threaten the water safety of surrounding residents. Therefore, achieving zero-emission treatment of high-salinity wastewater has become a key issue in the field of industrial environmental protection.

[0003] At present, the treatment technologies for industrial high-salinity wastewater mainly include evaporation crystallization, membrane separation, and sedimentation adsorption. However, the existing treatment technologies and supporting equipment still have many deficiencies in practical application. Firstly, the connection between the units of the traditional multi-stage treatment device is not close enough, and fixed connection is mostly used, which has poor limit stability, and the core components such as heat exchange boxes are inconvenient to disassemble and assemble, and the subsequent maintenance efficiency is low. Secondly, the heat exchange units generally have poor sealing performance, and are prone to wastewater leakage or loss of heat exchange medium. In addition, the arrangement of the heat exchange pipes is unreasonable, and the internal baffle design is imperfect, which leads to low heat exchange efficiency and easy blockage of the pipes due to salt crystallization. Thirdly, the deep treatment components are mostly fixed installation structures, and when the adsorption plates and reaction membranes are saturated or damaged, the disassembly and replacement process is complicated, which affects the continuity of treatment. Fourthly, the sealing mechanisms of the existing devices are mostly manually adjusted, and the sealing pressure is uneven, which cannot adapt to the pressure fluctuation in the high-salinity wastewater treatment process, further increasing the risk of leakage. Therefore, a zero-emission multi-stage wastewater treatment device for industrial high-salinity wastewater is needed to solve the above problems. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the present application provides a zero-emission multi-stage wastewater treatment device for industrial high-salinity wastewater, which can effectively solve the problems existing in the prior art.

[0005] To achieve the above purpose, the present application is implemented by the following technical solutions:

[0006] The application provides a zero-emission multistage wastewater treatment device for industrial high-salinity wastewater, which comprises a base, a fixing frame fixedly installed on the base, and a supporting limiting frame fixedly installed on the fixing frame, the supporting limiting frame is slidably connected with a heat exchange box, and the front end face of the fixing frame is provided with a limiting assembly corresponding to the heat exchange box on both sides.

[0007] The fixing frame is provided, from top to bottom, with a sedimentation tank at the bottom of the heat exchange box and a core treatment tank, the heat exchange box, the sedimentation tank, and the core treatment tank are sequentially communicated through a connecting channel, a water outlet of the core treatment tank is provided with a drain pipe, the top of the heat exchange box is provided with a water inlet pipe, the front end of the heat exchange box is provided with a handle, the inside of the heat exchange box is provided with a heat exchange assembly, and the heat exchange box is provided with a sealing assembly on one side.

[0008] Preferably, the limiting assembly comprises a limiting rotating shaft fixedly connected to the fixing frame, a limiting plate rotatably connected to the limiting rotating shaft, and a stop block fixedly installed on the fixing frame and matched with the limiting plate.

[0009] Preferably, the heat exchange assembly comprises two mounting plates, the inner walls of the two mounting plates are fixedly connected with main pipes, a plurality of connecting pipes are installed at equal intervals between the two main pipes, one end of each of the two connecting pipes is connected with a main pipe, a plurality of heat exchange pipes are arranged between the connecting pipes, the inside of the heat exchange box is fixedly connected with a supporting sliding frame, the mounting plate located in the inside of the heat exchange box is slidably connected to the top of the supporting sliding frame, a first sealing frame is installed on the inner wall of one side of the heat exchange box, a second sealing frame is installed on the outer wall of the other side of the heat exchange box, and a baffle is arranged in the inside of each of the connecting pipes.

[0010] Preferably, the heat exchange box is provided with a bushing on both sides, one of the mounting plates is located in the inside of the heat exchange box, and the other mounting plate is located in the outside of the heat exchange box, and the two mounting plates are respectively attached to the first sealing frame and the second sealing frame.

[0011] Preferably, the sealing assembly comprises a third sealing frame fixedly installed on the mounting plate in the outside of the heat exchange box, a first mounting frame and a second mounting frame are symmetrically arranged on one side of the heat exchange box, a lead screw is rotatably assembled on the first mounting frame, a guide column is fixedly installed on the second mounting frame, a positioning column is fixedly connected to the first mounting frame and the second mounting frame, an extrusion frame is installed on the outer wall of the lead screw and the guide column, the lead screw is threadedly connected with the corresponding extrusion frame, the guide column is slidably connected with the corresponding extrusion frame, a rotating rod is rotatably connected to one of the extrusion frames, a motor is fixedly connected to the first mounting frame, and the output shaft of the motor is connected with one end of the lead screw.

[0012] Preferably, the two extrusion frames are provided with positioning holes corresponding to the positioning columns, and the two positioning columns penetrate the inside of the positioning holes.

[0013] Preferably, the two extrusion frames are composed of moving plates and extrusion plates, the two moving plates are connected with the lead screws and the guide columns respectively, the two extrusion plates are connected with the corresponding moving plates through the hinges, and the two extrusion plates are tightly attached to the third sealing frame.

[0014] Preferably, the top of the two extrusion frames is provided with clamping grooves, and the rotating rod rotates in one of the clamping grooves and corresponds to the other clamping groove.

[0015] Preferably, the processing assembly comprises two sliding seats which are respectively slidingly connected in the two mounting grooves, the inner walls of the two sliding seats are provided with buckling grooves for taking out, and the two sliding seats are fixedly connected with a mounting frame, and the inside of the mounting frame is sequentially provided from top to bottom with a first adsorption plate, a reaction film and a second adsorption plate.

[0016] Preferably, the plurality of connecting channels are hoses and are movably connected between the corresponding heat exchange boxes, the sedimentation boxes and the core processing box.

[0017] Compared with the known prior art, the technical scheme provided by the application has the following beneficial effects:

[0018] The support limiting frame and the heat exchange box in the device are slidingly connected, cooperate with the limiting components on the fixing frame, can quickly realize the pulling disassembly of the heat exchange box, is convenient for the maintenance or replacement of the internal heat exchange components, can limit the sliding displacement of the heat exchange box through the cooperation of the limiting plate and the stop block, avoids the displacement of the heat exchange box due to vibration during operation, and solves the problems of complicated disassembly and low maintenance efficiency of the traditional fixed connection type heat exchange box.

[0019] The heat exchange assembly adopts the structure of double mounting plates cooperating with the main pipeline, multiple groups of connecting pipes and heat exchange pipes, the connecting pipes are provided with baffles, the baffles can optimize the flow path of the wastewater in the heat exchange pipes and prolong the heat exchange time, the first sealing frame and the second sealing frame on the two sides of the heat exchange box are attached to the inner and outer mounting plates respectively, cooperate with the third sealing frame and the extrusion frame of the sealing assembly, effectively prevent the leakage of wastewater or the loss of heat exchange medium, and significantly improve the heat exchange stability and efficiency.

[0020] The sealing assembly is driven to rotate by a motor, drives the extrusion frame to slide along the guide column, cooperates with the positioning column to limit the extrusion frame, can automatically adjust the pressure of the extrusion frame on the third sealing frame, can ensure that the extrusion plate is tightly attached to the third sealing frame, the pressure is uniformly distributed, replaces the traditional manual sealing adjustment mode, can adapt to pressure fluctuation in the high-salt wastewater treatment process, further improves the sealing reliability, avoids the decrease of treatment efficiency caused by sealing failure, and the extrusion frame is composed of the extrusion plate connected with the moving plate and the hinge, and the angle can be adjusted in the subsequent process, and the heat exchange assembly can be directly taken out for separate cleaning.

[0021] The processing assembly in the core processing box is slidably connected with the installation groove through the sliding seat, and the installation frame and the sliding seat are detachably connected through the buckle groove. When the first adsorption plate, the reaction film and the second adsorption plate are saturated or damaged, the plug-in plate can be directly pulled out, then the sliding seat is pulled out upward, the installation frame is taken out to complete component replacement, the core processing box does not need to be disassembled as a whole, the replacement time is greatly shortened, the processing interruption caused by component maintenance is avoided, and the continuous operation of the device is ensured.

[0022] The heat exchange box, the sedimentation tank and the core processing box are connected through the connection channel made of soft pipe material, so that the heat exchange box and the core processing box can be disassembled, the damage or loose connection of the traditional fixed pipeline caused by displacement of the heat exchange box is avoided, the smooth transportation of wastewater between the processing units is ensured, and the operation adaptability and stability of the whole device are improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] 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 needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0024] Figure 1 It is a perspective view of the present application;

[0025] Figure 2 It is a front view of the present application;

[0026] Figure 3 It is a structure diagram of the heat exchange box in the present application;

[0027] Figure 4 It is a structure diagram of the heat exchange box in the present application;

[0028] Figure 5 It is a structure diagram of the sealing assembly in the present application;

[0029] Figure 6 It is a structure diagram of the core processing box in the present application;

[0030] Figure 7 It is the internal structure schematic view of core processing box in the application;

[0031] Figure 8 It is the structure schematic view of processing assembly in the application;

[0032] Figure 9 It is the sectional view of connecting pipe in heat exchange assembly in the application;

[0033] Figure 10 It is Figure 1 The partial enlarged view of A in the application.

[0034] Reference signs:

[0035] 1, base; 2, fixed frame; 3, support limiting frame; 31, limiting assembly; 311, limiting rotating shaft; 312, limiting plate; 313, stop block;

[0036] 4, heat exchange box; 41, water inlet pipe; 42, handle; 43, heat exchange assembly; 44, sealing assembly;

[0037] 431, mounting plate; 432, main pipe; 433, connecting pipe; 434, heat exchange pipe; 435, support sliding frame; 436, first sealing frame; 437, second sealing frame; 438, baffle;

[0038] 441, third sealing frame; 442, first mounting frame; 443, second mounting frame; 444, screw rod; 445, guide column; 446, positioning column; 447, extrusion frame; 448, rotating rod; 449, motor;

[0039] 5, sedimentation tank; 51, feeding pipe;

[0040] 6, core processing box; 61, plug-in plate; 62, mounting groove; 63, processing assembly;

[0041] 631, sliding seat; 632, buckling groove; 633, mounting frame; 634, first adsorption plate; 635, reaction film; 636, second adsorption plate;

[0042] 7, drain pipe; 8, connecting channel. DETAILED DESCRIPTION

[0043] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0044] The present application will be further described below with reference to the embodiments.

[0045] Embodiment: Refer to Figures 1 to 10 The industrial high-salinity wastewater zero-emission multistage wastewater treatment device comprises a base 1, a fixing frame 2 fixedly installed on the base 1, and a supporting limiting frame 3 fixedly installed on the fixing frame 2, wherein the supporting limiting frame 3 is slidingly connected with a heat exchange box 4, and the front end face of the fixing frame 2 is provided with a limiting assembly 31 corresponding to the heat exchange box 4 on both sides.

[0046] The fixing frame 2 is installed from top to bottom with a sedimentation tank 5 and a core treatment tank 6 located at the bottom of the heat exchange box 4, wherein the heat exchange box 4, the sedimentation tank 5 and the core treatment tank 6 are sequentially communicated through a connecting channel 8, and the water outlet end of the core treatment tank 6 is provided with a drain pipe 7; the top of the heat exchange box 4 is provided with a water inlet pipe 41, the front end of the heat exchange box 4 is provided with a handle 42, the inside of the heat exchange box 4 is provided with a heat exchange assembly 43, and one side of the heat exchange box 4 is provided with a sealing assembly 44; the side wall of the sedimentation tank 5 is provided with a feeding pipe 51, the side wall of the core treatment tank 6 is provided with a plug-in plate 61, the inner walls on both sides of the core treatment tank 6 are provided with installation grooves 62, and the treatment assembly 63 is assembled between the two installation grooves 62.

[0047] The limiting assembly 31 comprises a limiting rotating shaft 311 fixedly connected to the fixing frame 2, a limiting plate 312 rotatingly connected to the limiting rotating shaft 311, and a stop block 313 fixedly installed on the fixing frame 2 and matched with the limiting plate 312; the limiting rotating shaft 311 provides a rotating support point for the limiting plate 312, when the heat exchange box 4 is slid along the supporting limiting frame 3 to the working position, the limiting plate 312 can be rotated around the limiting rotating shaft 311 to make the limiting plate 312 adhere to the side wall of the heat exchange box 4, thereby limiting the sliding displacement of the heat exchange box 4; the stop block 313 limits the rotation angle of the limiting plate 312 to ensure stable limiting.

[0048] The heat exchange assembly 43 comprises two mounting plates 431, the inner walls of the two mounting plates 431 are fixedly connected with main pipes 432, a plurality of connecting pipes 433 are installed between the two main pipes 432 at equal intervals, one end of the two connecting pipes 433 is connected with the two main pipes 432 respectively, a plurality of heat exchange pipes 434 are arranged between the plurality of connecting pipes 433, the heat exchange box 4 is fixedly connected with a supporting slide 435, the mounting plate 431 located inside the heat exchange box 4 is slidingly connected to the top of the supporting slide 435, a first sealing frame 436 is installed on the inner wall of one side of the heat exchange box 4, a second sealing frame 437 is installed on the outer wall of the other side of the heat exchange box 4, and the interiors of the plurality of connecting pipes 433 are provided with baffles 438; the main pipes 432 are used for conveying heat exchange medium, the connecting pipes 433 communicate the two main pipes 432, forming a circulation path of the heat exchange medium, the heat exchange pipes 434 are distributed transversely between the connecting pipes 433, increasing the contact area with the wastewater in the heat exchange box 4 and improving the heat exchange efficiency, the supporting slide 435 plays a positioning and supporting role on the mounting plate 431, so that the mounting plate 431 cannot be deviated when being installed inside the heat exchange box 4, and the position of the heat exchange pipe 434 in the heat exchange box 4 is stable; the first sealing frame 436 and the second sealing frame 437 provide preliminary sealing for the gap between the mounting plate 431 and the wall of the heat exchange box 4, so as to avoid leakage of the wastewater or the heat exchange medium, and the baffles 438 in the connecting pipes 433 can change the flow direction of the heat exchange medium and prolong the residence time of the heat exchange medium in the pipe.

[0049] The heat exchange box 4 is provided with a bushing on both sides, one of the two mounting plates 431 is located inside the heat exchange box 4, and the other mounting plate 431 is located outside the heat exchange box 4, and the two mounting plates 431 are fitted with the first sealing frame 436 and the second sealing frame 437 respectively; the bushings on both sides of the heat exchange box 4 provide a passing channel for the mounting plate 431 and the connected pipes, so as to ensure smooth connection between the external main pipe 432 and the internal heat exchange pipe 434, the design that one mounting plate 431 is inside and the other is outside clearly defines the installation direction of the internal mounting plate 431, that is, pushed from one side of the heat exchange box 4 to abut against the inner wall of the other side to complete the installation, which is suitable for the space inside the heat exchange box 4.

[0050] The sealing assembly 44 comprises a third sealing frame 441 fixedly installed on the mounting plate 431 outside the heat exchange box 4, a first mounting frame 442 and a second mounting frame 443 are symmetrically arranged on one side of the heat exchange box 4 along the front and back, a lead screw 444 is rotatably assembled on the first mounting frame 442, a guide column 445 is fixedly installed on the second mounting frame 443, a positioning column 446 is fixedly connected on the first mounting frame 442 and the second mounting frame 443, an extrusion frame 447 is installed on the outer wall of the lead screw 444 and the guide column 445, the lead screw 444 is in threaded connection with the corresponding extrusion frame 447, the guide column 445 is in sliding connection with the corresponding extrusion frame 447, a rotating rod 448 is rotatably connected on one of the extrusion frames 447, a motor 449 is fixedly connected on the first mounting frame 442, and the output shaft of the motor 449 is connected with one end of the lead screw 444; the third sealing frame 441 is fixed on the outer wall of the mounting plate 431, and the gap sealing between the two mounting plates 431 and the heat exchange box 4 is realized by extruding the third sealing frame 441; the first mounting frame 442 and the second mounting frame 443 provide support for the lead screw 444 and the guide column 445 respectively, ensure the stability of the driving structure, and the motor 449 provides power for sealing; the output shaft of the motor 449 drives the lead screw 444 to rotate, and because the lead screw 444 is in threaded connection with the extrusion frame 447, the rotation of the lead screw 444 is converted into the linear motion of the extrusion frame 447 along the guide column 445, and the extrusion sealing is realized.

[0051] Positioning holes corresponding to the positioning columns 446 are formed on the two extrusion frames 447, and the two positioning columns 446 penetrate the positioning holes.

[0052] The two extrusion frames 447 are composed of a moving plate and an extrusion plate, the two moving plates are connected with the lead screw 444 and the guide column 445 respectively, the two extrusion plates are connected with the corresponding moving plates through hinges, and the two extrusion plates are closely attached to the third sealing frame 441; the function of the moving plate is power transmission, which is connected with the lead screw 444 and the guide column 445 to convert the rotating power of the lead screw 444 into linear extrusion power, and the function of the extrusion plate is direct sealing, which is closely attached to the third sealing frame 441 to apply sealing pressure, and the hinge allows the extrusion plate to rotate in angle, which can be released from the limiting position by rotating the extrusion plate when disassembling the heat exchange assembly 43, thereby facilitating the disassembly of the heat exchange assembly 43 and reducing the maintenance difficulty.

[0053] The top of the two extrusion frames 447 is provided with a clamping groove, and the rotating rod 448 rotates in one of the clamping grooves and corresponds to the other clamping groove; the main function of the clamping groove is to position and store, when the motor 449 works normally, the rotating rod 448 is placed in one of the clamping grooves, so that the two extrusion frames 447 can move synchronously to extrude and seal, and the two extrusion frames 447 can be easily separated, thereby releasing the limitation on the heat exchange assembly 43.

[0054] The processing assembly 63 comprises two sliding seats 631 which are respectively slidingly connected in the two mounting grooves 62, the inner wall of each sliding seat 631 is provided with a buckle groove 632 for taking out, and the two sliding seats 631 are fixedly connected with a mounting frame 633, and the inside of the mounting frame 633 is sequentially provided with a first adsorption plate 634, a reaction film 635 and a second adsorption plate 636 from top to bottom; the sliding connection of the sliding seat 631 and the mounting groove 62 realizes the overall pulling of the processing assembly 63, when the first adsorption plate 634, the reaction film 635 and the second adsorption plate 636 are saturated or damaged, the sliding seat 631 can be directly pulled out along the mounting groove 62, without the need to disassemble the core processing box 6, so that the replacement time is greatly shortened, and the buckle groove 632 provides a force point for pulling, which is convenient for the operator to grasp.

[0055] The plurality of connecting channels 8 are all flexible pipes and are movably connected between the corresponding heat exchange boxes 4, sedimentation boxes 5 and core processing boxes 6; when the heat exchange boxes 4 and the core processing boxes 6 need to be disassembled for subsequent cleaning, the flexible pipes can avoid the pulling caused by displacement and are convenient for connection, so that the pipeline rupture or joint leakage caused by bending of traditional hard pipes is avoided, and the continuity of wastewater conveying is ensured.

[0056] The working principle of the application is as follows:

[0057] First, connect the external heat exchange channel with the two main pipes 432, and rotate the rotating rod 448 to the other clamping groove, so that the two extrusion frames 447 can move synchronously.

[0058] Then, the industrial high-salinity wastewater is introduced into the heat exchange box 4 through the water inlet pipe 41, and at this time, the heat exchange assembly 43 starts to work: the heat exchange medium is conveyed through the main pipe 432, and the heat exchange medium flows into the heat exchange pipe 434 through the connecting pipe 433, and because the heat exchange pipe 434 is transversely distributed between the connecting pipes 433, it fully contacts with the wastewater in the heat exchange box 4 to realize heat exchange; the baffle 438 in the connecting pipe 433 changes the flow direction of the heat exchange medium and makes it fully mixed to form turbulent flow to prolong the residence time and improve the heat exchange efficiency.

[0059] In the process, the sealing assembly 44 guarantees the sealing performance: the motor 449 drives the screw rod 444 to rotate, the screw rod 444 drives one of the extrusion frames 447 to move, the other extrusion frame 447 moves linearly along the guide column 445, the two extrusion frames 447 extrude the third sealing frame 441 on one of the mounting plates 431, so that it is tightly attached to the second sealing frame 437, and the other mounting plate 431 is tightly attached to the first sealing frame 436, completing the sealing of both ends. The positioning column 446 limits the deviation of the extrusion frame 447, ensuring uniform stress and preventing leakage of wastewater or heat exchange medium. In addition, during installation and subsequent processes, the support carriage 435 limits the position of the fixed mounting plate 431, ensuring the stability of the position of the heat exchange pipe 434.

[0060] After the heat exchange pretreatment, the wastewater flows into the sedimentation tank 5 through the hose material connecting channel 8. The operator adds sedimentation agents such as flocculants, heavy metal capture agents, etc. through the feeding pipe 51 on the side wall of the sedimentation tank 5. The pollutants such as suspended particles and heavy metal ions in the wastewater react with the agents to form a precipitate, achieving preliminary impurity removal.

[0061] After the sedimentation and impurity removal, the wastewater continues to flow into the core treatment tank 6 through the connecting channel 8, and is treated by the treatment assembly 63 to complete three-stage deep purification: the first adsorption plate 634 first adsorbs macromolecular pollutants such as residual suspended particles and part of organic matter in the wastewater, then the wastewater flows through the reaction membrane 635, which selectively intercepts salt and refractory organic matter in the high-salt wastewater, and finally the second adsorption plate 636 deeply adsorbs trace pollutants such as trace heavy metals and small-molecule organic matter, ensuring that the wastewater meets the standard for purification and zero discharge. The wastewater that meets the zero discharge requirement after deep purification is discharged through the drain pipe 7 at the outlet of the core treatment tank 6.

[0062] The treatment assembly 63 is connected to the installation groove 62 through the sliding seat 631. When the first adsorption plate 634, the reaction membrane 635, and the second adsorption plate 636 are saturated or damaged, the connecting channel 8 can be disconnected, the plug-in plate 61 can be pulled out, and the sliding seat 631 and the installation frame 633 can be pulled out through the buckle groove 632. The purification components can be quickly replaced without disassembling the tank, ensuring continuous treatment.

[0063] When maintaining the heat exchange assembly 43, reverse the motor 449 so that the two extrusion plates 447 no longer extrude the third sealing frame 441. Then rotate the rotating rod 448 to the initial buckle slot. Then rotate the two extrusion plates 447 through the hinges so that they no longer block the disassembly route of the heat exchange assembly 43. Then pull out the mounting plate 431 so that it moves along the outside of the heat exchange tank 4. The installation operation is the same.

[0064] When the heat exchange box 4 needs to be maintained, only the limiting plate 312 is reversely rotated around the limiting rotating shaft 311 to be separated from the limiting of the heat exchange box 4, and then the heat exchange box 4 is pulled out along the supporting limiting frame 3 through the handle 42; after the maintenance is completed, the heat exchange box 4 is pushed back to the original position, the limiting plate 312 is attached to the side wall, the stop block 313 limits the excessive rotation of the limiting plate 312, the positioning of the heat exchange box 4 is stable, and the normal operation of the device is restored.

[0065] The above examples are only used to illustrate the technical solutions of the present application, but not limit the same; although the present application is described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by the equivalent ones; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A zero discharge multi-stage wastewater treatment device for industrial high-salinity wastewater, characterized in that, Including base (1), fixed mounting on base (1) fixed frame (2) and fixed mounting on fixed frame (2) support limiting frame (3), the support limiting frame (3) sliding connection has heat exchange box (4), the front end surface both sides of fixed frame (2) are provided with the limiting assembly (31) corresponding with heat exchange box (4); The fixed frame (2) is installed from top to bottom with the sedimentation tank (5) and the core processing tank (6) located at the bottom of the heat exchange box (4), the heat exchange box (4), the sedimentation tank (5) and the core processing tank (6) are sequentially communicated through the connecting channel (8), the water outlet end of the core processing tank (6) is provided with a drain pipe (7), the top of the heat exchange box (4) is provided with a water inlet pipe (41), the front end of the heat exchange box (4) is provided with a handle (42), the inside of the heat exchange box (4) is provided with a heat exchange assembly (43), one side of the heat exchange box (4) is provided with a sealing assembly (44), the side wall of the sedimentation tank (5) is provided with a feeding pipe (51), the side wall of the core processing tank (6) is provided with a plug-in board (61), the inner walls of the two sides of the core processing tank (6) are both provided with mounting grooves (62), and the two mounting grooves (62) are assembled with a processing assembly (63); The heat exchange assembly (43) includes two mounting plates (431), the inner walls of the two mounting plates (431) are both fixedly connected with main pipes (432), a plurality of connecting pipes (433) are installed at equal intervals between the two main pipes (432), one end of each of the two connecting pipes (433) is connected with the two main pipes (432), a plurality of heat exchange pipes (434) are arranged between the plurality of connecting pipes (433), the inside of the heat exchange box (4) is fixedly connected with a supporting slide (435), the mounting plate (431) located in the inside of the heat exchange box (4) is slidingly connected to the top of the supporting slide (435), a first sealing frame (436) is installed on the inner wall of one side of the heat exchange box (4), a second sealing frame (437) is installed on the outer wall of the other side of the heat exchange box (4), and baffles (438) are arranged in the interiors of the plurality of connecting pipes (433). The heat exchange box (4) is provided with a plug hole on both sides, one of the mounting plates (431) is located in the inside of the heat exchange box (4), and the other mounting plate (431) is located outside the heat exchange box (4), and the two mounting plates (431) are respectively attached to the first sealing frame (436) and the second sealing frame (437).

2. The zero discharge multi-stage wastewater treatment device for industrial high-salinity wastewater according to claim 1, characterized in that, The limiting assembly (31) includes a limiting rotating shaft (311) fixedly connected to the fixed frame (2), the limiting rotating shaft (311) is rotatably connected with a limiting plate (312), and the fixed frame (2) is fixedly installed with a stop block (313) matched with the limiting plate (312).

3. The zero discharge multi-stage wastewater treatment device for industrial high-salinity wastewater according to claim 1, characterized in that, The sealing assembly (44) comprises a third sealing frame (441) fixedly installed on a mounting plate (431) outside the heat exchange box (4), one side of the heat exchange box (4) is provided with a first mounting frame (442) and a second mounting frame (443) in a front-rear symmetry, the first mounting frame (442) is rotatably provided with a lead screw (444), the second mounting frame (443) is fixedly provided with a guide column (445), the first mounting frame (442) and the second mounting frame (443) are both fixedly connected with a positioning column (446), the lead screw (444) and the outer wall of the guide column (445) are both provided with an extrusion frame (447), the lead screw (444) is in threaded connection with the corresponding extrusion frame (447), the guide column (445) is in sliding connection with the corresponding extrusion frame (447), one of the extrusion frames (447) is rotatably connected with a rotating rod (448), the first mounting frame (442) is fixedly connected with a motor (449), and an output shaft of the motor (449) is connected with one end of the lead screw (444).

4. The zero discharge multi-stage wastewater treatment device for industrial high-salinity wastewater according to claim 3, characterized in that, The two extrusion frames (447) are both provided with positioning holes corresponding to the positioning column (446), and the two positioning columns (446) penetrate the positioning holes.

5. The zero discharge multi-stage wastewater treatment device for industrial high-salinity wastewater according to claim 4, characterized in that, The two extrusion frames (447) are both composed of a moving plate and an extrusion plate, the two moving plates are connected with the lead screw (444) and the guide column (445) respectively, the two extrusion plates are connected with the corresponding moving plates through hinges, and the two extrusion plates are closely attached to the third sealing frame (441).

6. The zero discharge multi-stage wastewater treatment device for industrial high-salinity wastewater according to claim 5, characterized in that, The top of the two extrusion frames (447) is provided with a clamping groove, the rotating rod (448) rotates in one of the clamping grooves and corresponds to the other clamping groove.

7. The zero discharge multi-stage wastewater treatment device for industrial high-salinity wastewater according to claim 1, characterized in that, The processing assembly (63) comprises two sliding seats (631) slidingly connected in two mounting grooves (62) respectively, the inner wall of the two sliding seats (631) is provided with a buckle groove (632) for taking out, and the two sliding seats (631) are fixedly connected with a mounting frame (633), the inside of the mounting frame (633) is sequentially provided with a first adsorption plate (634), a reaction film (635) and a second adsorption plate (636) from top to bottom.

8. The zero discharge multi-stage wastewater treatment device for industrial high-salinity wastewater according to claim 1, characterized in that, The plurality of connecting channels (8) are all flexible pipes and are movably connected between the corresponding heat exchange boxes (4), sedimentation boxes (5) and core processing boxes (6).

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