Electrodialysis concentration equipment for recovering and treating ammonium nitrate condensed water by using whole membrane method

Abstract

The invention relates to the technical field of purification equipment, in particular to electrodialysis concentration equipment for recycling ammonium nitrate condensed water by a whole membrane method, which comprises partition plates, a mounting plate is arranged between two adjacent partition plates, a concentrated solution discharge hole is vertically formed in the top of the mounting plate, and a cylindrical plug is movably inserted into the concentrated solution discharge hole. A liquid guide groove is formed in the bottom of the mounting plate, a fixed shaft seat is fixedly mounted at the position, corresponding to the concentrated liquid discharging hole, of the bottom of the mounting plate, and in the cleaning process, the cylindrical plug is located in the concentrated liquid discharging hole in the cleaning side and blocks the concentrated liquid discharging hole in the cleaning side; and when the corrugated pipe is mounted in one concentrated solution discharge hole, the ammonium nitrate concentrated solution in the rubber frame can still be normally conveyed, so that the normal work of the electrodialysis concentration equipment is not influenced, and the influence on the electrodialysis concentration equipment in the shutdown cleaning process is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of purification equipment, in particular to an electrodialysis concentration device for recovering and treating ammonium nitrate condensate water by a full membrane method. Background Art

[0002] Ammonium nitrate is an ammonium salt with the chemical formula NH4NO3. It is a white crystalline powder. It is highly soluble in water, easily absorbs moisture and agglomerates. It absorbs a large amount of heat when dissolved. It is an oxidant. It decomposes explosively when hit or heated, and decomposes when exposed to alkali. It is mainly used as a fertilizer and in industry.

[0003] Ammonium nitrate condensate contains ammonium nitrate, which needs to be purified for subsequent use. Existing ammonium nitrate condensate purification generally uses electrodialysis concentration equipment for processing. During the purification process, clean water and ammonium nitrate concentrate are produced and discharged separately.

[0004] During the purification of ammonium nitrate concentrate, crystallization will occur. During the discharge of the concentrate, the concentrate is located in a relatively narrow pipeline. The concentrated liquid has a small movement space and is more likely to crystallize. After crystallization occurs, the diameter of the pipeline becomes smaller, affecting the transportation effect of the concentrate. Therefore, the crystals mixed with the concentrate will affect the transportation of the liquid. The crystals need to be separated and removed well to better concentrate and transport them. In order to solve this problem, a new type of full-membrane electrodialysis concentration equipment for recovering and treating ammonium nitrate condensate is proposed. Summary of the invention

[0005] The object of the present invention is to provide an electrodialysis concentration device for recovering and treating ammonium nitrate condensate by a full membrane method, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: an electrodialysis concentration device for recovering and treating ammonium nitrate condensate water by a full-membrane method, comprising a partition plate, a mounting plate is arranged between two adjacent partition plates, a concentrate discharge hole is vertically opened on the top of the mounting plate, a cylindrical plug is movably inserted in the concentrate discharge hole, a liquid guide groove is opened at the bottom of the mounting plate, a fixed shaft seat is fixedly installed at the bottom of the mounting plate corresponding to the position of the concentrate discharge hole, a hexagonal rotating rod is rotatably connected in the fixed shaft seat, and the hexagonal rotating rod is located in the concentrate discharge hole, a scraper strip is fixedly installed on one side of the hexagonal rotating rod, and the scraper strip is located in the liquid guide groove, a sealing bottom plate is fixedly installed on the bottom of the mounting plate through a threaded plunger, and a docking groove connected to the liquid guide groove is opened at the bottom of the mounting plate.

[0007] Preferably, the sealing bottom plate and the liquid guiding groove are combined to deform to form a cavity for the scraper strip to move.

[0008] Preferably, a hollow groove is provided on the scraper strip, and the scraper strip is a prismatic structure with small top and bottom and large middle.

[0009] Preferably, the mounting plate is provided with a plurality of slots, two insertion rods are movably inserted in the slots, the insertion rods are provided with docking holes, a connecting pin is movably inserted in the mounting plate, the bottom end of the connecting pin passes through the docking holes on the two insertion rods in sequence, and buffer pads are fixedly installed on the ends of the two insertion rods away from each other, and the buffer pads are in contact with the side walls of the mounting plate.

[0010] Preferably, the two insertion rods located in the same slot are centrally symmetrically arranged.

[0011] Preferably, a rubber frame is provided between the partition plates and is located directly below the mounting plate, a dialysis membrane is movably mounted in the rubber frame, and notches are provided at the top and the bottom of the rubber frame.

[0012] Preferably, a first trapezoidal bar is arranged at the top of the dialysis membrane, a second trapezoidal bar is arranged at the bottom of the dialysis membrane, a top groove corresponding to the first trapezoidal bar is opened at the top of the rubber frame, and a bottom through groove corresponding to the second trapezoidal bar is opened at the bottom of the rubber frame.

[0013] Preferably, the vertical cross-section of the dialysis membrane is wavy, and the projection area of ​​the dialysis membrane is smaller than the projection area of ​​the rubber frame.

[0014] Preferably, a clean liquid discharge pipe is installed on the top of the mounting plate containing pure water, and a first valve is installed on the clean liquid discharge pipe. A concentrated liquid discharge pipe is provided on the top of the mounting plate containing concentrated liquid, and a second valve is fixedly installed on the concentrated liquid discharge pipe. A bellows is provided at the bottom end of the concentrated liquid discharge pipe, and the concentrated liquid discharge pipe is connected to the mounting plate through the bellows.

[0015] Preferably, a side top frame is provided on the side of the partition plate away from the rubber frame, and a side screw rod is symmetrically provided outside the side top frame, and a plurality of assembly plates are movably mounted on the side screw rod, and the assembly plates are in contact with the surface of the side top frame, and a nut is threadedly connected to the side screw rod, and a push rod is fixedly mounted on one of the assembly plates, and a buckle is fixedly mounted on the piston rod end of the push rod, and the buckle is movably engaged with another assembly plate, and a plug rod is movably inserted into the buckle, and a U-shaped connecting rod is fixedly mounted on the top of the mounting plate containing concentrated liquid, and a connecting block is provided on the top of the U-shaped connecting rod, and the connecting block is movably engaged in the buckle, and the plug rod passes through the buckle and the connecting block in sequence, and a mounting frame is provided on the partition plate, and a top screw rod is fixedly mounted on the mounting frame, a nut is threadedly mounted on the top screw rod, and the end of the assembly piece is movably sleeved on the top screw rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The existence of the liquid guide groove increases the size of the infusion space and reduces the influence of crystallization. The connection between the cylindrical plug and the hexagonal rotating rod is achieved through the cooperation of the cylindrical plug and the hexagonal rotating rod. The rotation of the cylindrical plug drives the rotation of the hexagonal rotating rod. The rotation of the hexagonal rotating rod in the fixed shaft seat realizes the change of the scraper angle. The top and bottom of the scraper are in contact with the top of the inner wall of the liquid guide groove and the top of the sealing bottom plate through the rotation of the scraper in the liquid guide groove. The crystals on the top of the liquid guide groove and the top of the sealing bottom plate are scraped off through the contact of the scraper, so as to prevent the crystals produced by the concentrated ammonium nitrate from stacking in the liquid guide groove, so as to realize the cleaning of the pipeline for conveying the concentrated ammonium nitrate liquid. It only needs to slightly rotate the cylindrical plug to realize the cleaning of the crystals in the liquid guide groove, realize the timed processing of the crystals, prevent the crystals from being mixed in the solution and conveyed together, and prevent the crystals from clogging the pipeline and affecting the normal use of the pipeline. It has strong practicality.

[0018] During the cleaning process, the bellows can be installed in another concentrated liquid discharge hole. During the cleaning process, the cylindrical plug is located in the concentrated liquid discharge hole on the cleaning side. The cylindrical plug blocks the concentrated liquid discharge hole on the cleaning side to prevent the ammonium nitrate concentrate from leaking out of the concentrated liquid discharge hole on the cleaning side. When the bellows is installed in the other concentrated liquid discharge hole, the ammonium nitrate condensate in the rubber frame can still be transported normally, which does not affect the normal operation of the electrodialysis concentration equipment and greatly reduces the impact of the shutdown cleaning process on the electrodialysis concentration equipment.

[0019] 2. A first valve is provided on the clean liquid discharge pipe, and a second valve is provided on the concentrated liquid discharge pipe, which respectively control the connection between the clean liquid discharge pipe and the concentrated liquid discharge pipe to achieve control of drainage and drainage of concentrated ammonium nitrate, improve the control effect of drainage, and also prevent untreated ammonium nitrate condensate from entering the concentrated liquid discharge pipe and affecting the purity of the concentrated liquid through this design.

[0020] 3. The assembly sheet, push rod and buckle can be disassembled by twisting the nut on one side of the assembly sheet of the push rod. The disassembled assembly sheet is installed on the top screw rod, and the buckle on the push rod piston rod is installed on the connecting block by inserting the solder joint. When the mounting plate needs to be inspected, cleaned or replaced, the piston rod of the push rod drives the connecting block and the U-shaped connecting rod to move upward, thereby driving multiple mounting plates corresponding to the concentrated liquid to move upward at one time, which is convenient for cleaning and maintenance of the mounting plate, and does not require two sets of push rods, greatly reducing the manufacturing cost of the electrodialysis equipment.

[0021] 4. A dialysis membrane is arranged in the rubber frame, and the dialysis membrane can be removed separately. A through groove is opened at the bottom, and pressure is applied to the second trapezoidal bar from below, so that the first trapezoidal bar leaves from the top groove, so that the dialysis membrane can be pulled out and cleaned or replaced. Compared with the more durable rubber frame, the design of replacing the dialysis membrane separately can reduce the use cost of the structure composed of the rubber frame and the dialysis membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 It is a side view structural schematic diagram of the present invention.

[0024] Figure 3 It is a schematic diagram of the working state of the push rod top of the present invention.

[0025] Figure 4 It is a schematic diagram of the transport structure of ammonium nitrate concentrate of the present invention.

[0026] Figure 5 It is a schematic diagram of the working state of the push rod side of the present invention.

[0027] Figure 6 It is a schematic diagram of the matching structure of the sealing frame and the dialysis membrane of the present invention.

[0028] Figure 7 It is a schematic diagram of the cross-sectional structure of the sealing frame of the present invention.

[0029] Figure 8 It is a schematic diagram of the side planar structure of the dialysis membrane of the present invention.

[0030] Fig. 9 This is a schematic diagram of the top mounting plate structure of the present invention.

[0031] Fig.10 This is a schematic diagram of the installation structure of the buffer washer of the present invention.

[0032] Fig.11 It is a schematic diagram of the disassembled structure of the buffer gasket of the present invention.

[0033] Fig.12 It is a bottom view of the structure of the mounting plate of the present invention.

[0034] Fig.13 It is a schematic diagram of the disassembly structure of the mounting plate of the present invention.

[0035] Fig.14 It is a structural schematic diagram of the corresponding position of the scraper strip of the present invention.

[0036] In the figure: 1, partition plate; 2, mounting plate; 3, concentrate discharge hole; 4, cylindrical plug; 5, liquid guide groove; 6, fixed shaft seat; 7, hexagonal rotating rod; 8, scraper; 801, hollow groove; 9, sealing bottom plate; 10, threaded plunger; 11, docking groove; 12, slot; 13, plug rod; 14, docking hole; 15, connecting braze; 16, buffer pad; 17, rubber frame; 1701, top groove; 1702, bottom through groove; 18, dialysis Membrane; 1801, first trapezoidal bar; 1802, second trapezoidal bar; 19, notch; 20, clean liquid discharge pipe; 21, first valve; 22, concentrate discharge pipe; 23, second valve; 24, bellows; 25, side top frame; 26, side screw rod; 27, assembly sheet; 28, nut; 29, push rod; 30, buckle; 31, insert; 32, U-shaped connecting rod; 33, connecting block; 34, mounting frame; 35, top screw rod. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figures 1 to 14The present invention provides a technical solution: an electrodialysis concentration device for recovering and treating ammonium nitrate condensate by a full membrane method, comprising a partition plate 1, a mounting plate 2 is arranged between two adjacent partition plates 1, a concentrated liquid discharge hole 3 is vertically opened on the top of the mounting plate 2, the concentrated liquid discharge hole 3 is a vertically opened circular hole, which is adapted to the insertion part of the bottom of the cylindrical plug 4, and the concentrated liquid discharge hole 3 is movably plugged with a cylindrical plug 4, a liquid guide groove 5 is opened at the bottom of the mounting plate 2, and the liquid guide groove 5 is a triangular groove, which provides a certain space for discharging the concentrated liquid and has a certain buffering amplitude, which can prevent the concentrated liquid from always flowing in a relatively narrow pipeline, a fixed shaft seat 6 is fixedly installed at the bottom of the mounting plate 2 corresponding to the position of the concentrated liquid discharge hole 3, the fixed shaft seat 6 and the concentrated liquid discharge hole 3 are located on the same axis, a hexagonal rotating rod 7 is rotatably connected in the fixed shaft seat 6, and the hexagonal rotating rod 7 is located in the concentrated liquid discharge hole 3, and a fixed shaft seat 6 is arranged The bottom of the cylindrical plug 4 is provided with a groove corresponding to the hexagonal rotating rod 7. The cylindrical plug 4 and the hexagonal rotating rod 7 are engaged with each other through the cooperation between the cylindrical plug 4 and the top of the hexagonal rotating rod 7 to ensure that the cylindrical plug 4 supplies energy to the hexagonal rotating rod 7. A scraper 8 is fixedly installed on one side of the hexagonal rotating rod 7. The scraper 8 is provided with a hollow groove 801 to reduce the weight of the scraper 8 and improve the driving convenience of the scraper 8. The scraper 8 is a prismatic structure with a small top and bottom and a large middle. The scraper 8 is located in the liquid guide groove 5. The top and bottom of the scraper 8 respectively apply pressure to the top of the liquid guide groove 5 and the top of the sealing bottom plate 9, and apply pressure to the crystals deposited on the top of the liquid guide groove 5 and the top of the sealing bottom plate 9, so as to scrape off the crystals at this position to prevent the accumulation of crystals. When the crystals fall and are carried by the concentrated liquid, they are easy to block the pipeline, affecting the normal transportation of the pipeline.

[0039] refer to Fig.12 and Fig.13 The bottom of the mounting plate 2 is fixedly mounted with a sealing bottom plate 9 through a threaded plunger 10. The sealing bottom plate 9 and the liquid guide groove 5 are combined to deform into a cavity for the scraper strip 8 to move. The sealing bottom plate 9 blocks the bottom of the liquid guide groove 5. The sealing bottom plate 9 and the liquid guide groove 5 form a space for the concentrated liquid to flow. The sealing bottom plate 9 can be disassembled by twisting the threaded plunger 10, so that the top of the sealing bottom plate 9 and the top of the inner wall of the liquid guide groove 5 can be cleaned conveniently.

[0040] The bottom of the mounting plate 2 is provided with a docking groove 11 connected to the liquid guiding groove 5. The docking groove 11 corresponds to the position of the notch 19 on the rubber frame 17 to guide the concentrated liquid.

[0041] refer to Fig. 9 , 10, 11, the mounting plate 2 is provided with a plurality of slots 12, in which two plug rods 13 are movably plugged, the two plug rods 13 in the same slot 12 are centrally symmetrically arranged, one end of the plug rod 13 is thin and the other end is thick, and the two plug rods 13 are centrally symmetrically arranged, the thinner parts of the two plug rods 13 are the same thickness as the thicker parts of the plug rods 13 after being attached, the plug rods 13 are provided with docking holes 14, the mounting plate 2 is movably plugged with connecting brazes 15, and the bottom ends of the connecting brazes 15 pass through the docking holes 14 on the two plug rods 13 in sequence, The two insertion rods 13 are installed and fixed by inserting the connecting braze 15 into the mounting plate 2 and the docking hole 14 in sequence. Buffer pads 16 are fixedly installed on the ends of the two insertion rods 13 that are away from each other, and the buffer pads 16 fit the side walls of the mounting plate 2. The buffer pads 16 are made of soft rubber, and the longitudinal section of the buffer pads 16 is the same size as the longitudinal section of the mounting plate 2. The buffer pads 16 can be deformed to form sealing pads on both sides of the mounting plate 2 to prevent the liquid entering the rubber frame 17 from leaking from the positions on both sides of the mounting plate 2.

[0042] refer to Figure 6 , 7 8. A rubber frame 17 is provided between the partition plates 1 and is located directly below the mounting plate 2. A dialysis membrane 18 is movably installed in the rubber frame 17. The rubber frame 17 forms a space for installing the dialysis membrane 18. A plurality of rubber frames 17 form a cavity. The dialysis membrane 18 is arranged in the cavity. Notches 19 are provided at the top and bottom of the rubber frame 17. The notch 19 at the top is used for draining liquid, and the notch 19 at the bottom is used for inletting liquid, so as to realize liquid flow control during the ammonium nitrate concentration dialysis process.

[0043] A first trapezoidal bar 1801 is provided at the top of the dialysis membrane 18, a second trapezoidal bar 1802 is provided at the bottom of the dialysis membrane 18, a top groove 1701 corresponding to the first trapezoidal bar 1801 is provided at the top of the rubber frame 17, and a bottom through groove 1702 corresponding to the second trapezoidal bar 1802 is provided at the bottom of the rubber frame 17. The trapezoidal structure of the first trapezoidal bar 1801 and the second trapezoidal bar 1802 improves the fixing effect of the dialysis membrane 18 in the rubber frame 17;

[0044] The vertical cross section of the dialysis membrane 18 is wavy, and the projected area of ​​the dialysis membrane 18 is smaller than the projected area of ​​the rubber frame 17. The wavy design of the dialysis membrane 18 increases the area of ​​the dialysis membrane 18, and the contact area between the dialysis membrane 18 and the ammonium nitrate concentrate is larger, thereby improving the filtration effect.

[0045] A clean liquid discharge pipe 20 is installed on the top of the installation plate 2 containing pure water, and a first valve 21 is installed on the clean liquid discharge pipe 20. The installation plates 2 are the same, but due to the different directions of the current in the installation plates 2, one of the two adjacent installation plates 2 is filtered into pure water, and the other installation plate 2 is concentrated into ammonium nitrate concentrate, and the clean liquid discharge pipe 20 is provided with a first valve 21 for controlling the flow of liquid in the clean liquid discharge pipe 20. A concentrated liquid discharge pipe 22 is provided on the top of the installation plate 2 containing concentrated liquid, and the concentrated liquid discharge pipe 22 A second valve 23 is fixedly installed on the top, a bellows 24 is arranged at the bottom end of the concentrate discharge pipe 22, and the concentrate discharge pipe 22 is connected to the mounting plate 2 through the bellows 24. The second valve 23 controls the connection between the concentrate discharge pipe 22 and the mounting plate 2, so as to achieve the connection effect between the concentrate discharge pipe 22 and the ammonium nitrate concentrate in the mounting plate 2. At the same time, the bellows 24 is a stretchable pipe material, so as to change the position of the bellows 24, so that the bellows 24 can be installed in another concentrate discharge hole 3 on the mounting plate 2;

[0046] A side top frame 25 is provided on one side of the partition plate 1 away from the rubber frame 17, and a side screw rod 26 is symmetrically provided outside the side top frame 25. A plurality of assembly pieces 27 are movably mounted on the side screw rod 26, and the assembly piece 27 is fitted with the surface of the side top frame 25. The side screw rod 26 and the assembly piece 27 form a rectangular enclosing structure located outside the partition plate 1 and the mounting plate 2, which assists the installation of other structures. At the same time, the side top frame 25 is fitted with the partition plate 1, which also assists the installation of the side screw rod 26 and the assembly piece 27. A nut 28 is threadedly connected to the side screw rod 26, and the nut 28 is threadedly moved on the side screw rod 26 to fix the assembly piece 27. A push rod 29 is fixedly mounted on one of the assembly pieces 27, and a buckle 30 is fixedly mounted on the piston rod end of the push rod 29. The buckle 30 is movably engaged with another assembly piece 27. The buckle 30 is for assembly after the side top frame 25 is attached The sheet 27 applies pressure to achieve the fixation of the partition plate 1, the mounting plate 2 and the rubber frame 17. The plug 31 is movably inserted on the buckle 30. A U-shaped connecting rod 32 is fixedly installed on the top of the mounting plate 2 containing the concentrated liquid. A connecting block 33 is arranged on the top of the U-shaped connecting rod 32. The U-shaped connecting rod 32 and the connecting block 33 combine multiple mounting plates 2 together to achieve the joint control of the lifting of multiple mounting plates 2. The connecting block 33 is movably engaged in the buckle 30, and the plug 31 passes through the buckle 30 and the connecting block 33 in sequence. A mounting frame 34 is provided on the partition plate 1, and a top screw rod 35 is fixedly installed on the mounting frame 34. A nut 28 is threadedly installed on the top screw rod 35, and the end of the assembly sheet 27 is movably sleeved on the top screw rod 35. The assembly sheet 27 and the push rod 29 can be disassembled and installed at the top position from both sides to adapt to different usage conditions and share the same set of equipment to reduce costs.

[0047] The implementation process of this embodiment is as follows: the piston rod of the push rod 29 pushes the buckle 30 to apply pressure, and the buckle 30 then applies pressure to the assembly piece 27, and the buckle 30 applies pressure to the assembly piece 27 close to the side top frame 25, so as to realize the assembly and fixation of the partition plate 1, the mounting plate 2 and the rubber frame 17, and at the same time, by screwing the nut 28 on the side screw rod 26, the assembly piece 27 close to the side top frame 25 is fixed, so as to realize the fixation of the partition plate 1, the mounting plate 2 and the rubber frame 17 after assembly;

[0048] A first valve 21 is provided on the clean liquid discharge pipe 20, and a second valve 23 is provided on the concentrated liquid discharge pipe 22, which respectively control the connection between the clean liquid discharge pipe 20 and the concentrated liquid discharge pipe 22, thereby controlling the discharge of water and concentrated ammonium nitrate, and improving the control effect of the discharge;

[0049] The assembly piece 27, the push rod 29 and the buckle 30 are disassembled by twisting the nut 28 on one side of the assembly piece 27 of the push rod 29. The disassembled assembly piece 27 can be installed on the top screw rod 35, and the assembly piece 27 installed on the top screw rod 35 is fixed by the nut 28. The buckle 30 on the piston rod of the push rod 29 is installed on the connecting block 33 by inserting the braze 31 to realize the connection between the U-shaped connecting rod 32 and the push rod 29. When the mounting plate 2 needs to be repaired, cleaned or replaced, the connecting block 33 and the U-shaped connecting rod 32 are driven to move upward by the piston rod of the push rod 29, thereby driving a plurality of mounting plates 2 corresponding to the concentrated liquid to move upward at one time, which is convenient for cleaning and maintenance of the mounting plate 2.

[0050] The ammonium nitrate condensate is injected into the rubber frame 17 from below, enters the cavity formed by the rubber frame 17 through the notch 19 provided below the rubber frame 17, and contacts the dialysis membrane 18. The dialysis membrane 18 forms a structure for ionizing the ammonium nitrate condensate, separates the ammonium nitrate condensate, and allows the ammonium nitrate in the ammonium nitrate condensate to move, thereby achieving the concentration and purification of the ammonium nitrate condensate.

[0051] The dialysis membrane 18 is arranged in the rubber frame 17. The dialysis membrane 18 can be disassembled. The bottom through groove 1702 is opened through. The second trapezoidal bar 1802 is pressed from below, and the first trapezoidal bar 1801 leaves from the top groove 1701 to realize the extraction of the dialysis membrane 18. The dialysis membrane 18 is cleaned or replaced. The dialysis membrane 18 is inserted into the deformable rubber frame 17 by the first trapezoidal bar 1801 and the second trapezoidal bar 1802 to realize the stable connection between the rubber frame 17 and the dialysis membrane 18.

[0052] The concentrated liquid discharge hole 3 is connected with the corresponding bellows 24, the second valve 23 and the concentrated liquid discharge pipe 22. The ammonium nitrate concentrated water located in the mounting plate 2 and the corresponding rubber frame 17 moves upward through the notch 19 on the rubber frame 17. The notch 19 corresponds to the position of the docking groove 11. The ammonium nitrate concentrated liquid moves through the position of the docking groove 11 to reach the liquid guide groove 5, enters the concentrated liquid discharge hole 3 along the guidance of the liquid guide groove 5, and then flows upward. The second valve 23 is turned to realize the connection between the concentrated liquid discharge pipe 22 and the concentrated liquid discharge hole 3, and is discharged through the bellows 24 and the concentrated liquid discharge pipe 22, thereby realizing the discharge of the ammonium nitrate concentrated liquid.

[0053] The bellows 24 is drawn out from the concentrated liquid discharge hole 3, and the cylindrical plug 4 is inserted into the concentrated liquid discharge hole 3 to achieve docking between the cylindrical plug 4 and the concentrated liquid discharge hole 3. After the cylindrical plug 4 is inserted into the concentrated liquid discharge hole 3, the groove at the bottom of the cylindrical plug 4 is aligned with the top of the hexagonal rotating rod 7. The cylindrical plug 4 and the hexagonal rotating rod 7 are connected through the cooperation of the cylindrical plug 4 and the hexagonal rotating rod 7. The rotation of the cylindrical plug 4 drives the rotation of the hexagonal rotating rod 7. The rotation of the hexagonal rotating rod 7 in the fixed shaft seat 6 realizes the change of the angle of the scraper 8. Through the rotation of the scraper 8 in the liquid guide groove 5, the top and bottom of the scraper 8 are in contact with the top of the inner wall of the liquid guide groove 5 and the top of the sealing bottom plate 9. The contact of the scraper 8 scrapes off the crystals on the top of the liquid guide groove 5 and the top of the sealing bottom plate 9 to prevent the crystals produced by the concentrated ammonium nitrate from stacking in the liquid guide groove 5, thereby realizing the cleaning of the pipeline for transporting the concentrated ammonium nitrate liquid;

[0054] During the cleaning process, the bellows 24 can be installed in another concentrated liquid discharge hole 3. During the cleaning process, the cylindrical plug 4 is located in the concentrated liquid discharge hole 3 on the cleaning side. The cylindrical plug 4 blocks the concentrated liquid discharge hole 3 on the cleaning side to prevent the ammonium nitrate concentrate from leaking out of the concentrated liquid discharge hole 3 on the cleaning side. When the bellows 24 is installed in another concentrated liquid discharge hole 3, the ammonium nitrate condensate in the rubber frame 17 can still be transported normally without affecting the normal operation of the equipment.

[0055] The structure composed of the buffer pad 16 and the plug rod 13 is installed on the mounting plate 2. The connection position of the two plug rods 13 is fixed by inserting the connecting solder 15 on the mounting plate 2 to ensure that the two buffer pads 16 are installed on both sides of the mounting plate 2. The dialysis membrane 18 has deformation ability, corresponding to the deformation of the rubber frame 17. When the partition plates 1 approach each other and apply pressure to the rubber frame 17 and the mounting plate 2, the rubber frame 17 and the buffer pad 16 undergo corresponding deformation, ensuring the fixing effect between the rubber frames 17, thereby ensuring the sealing effect.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrodialysis concentration device for recovering and treating ammonium nitrate condensate by full membrane method, comprising a partition plate (1), characterized in that: A mounting plate (2) is arranged between two adjacent partition plates (1), a concentrated liquid discharge hole (3) is vertically opened on the top of the mounting plate (2), a cylindrical plug (4) is movably inserted in the concentrated liquid discharge hole (3), a liquid guide groove (5) is opened at the bottom of the mounting plate (2), a fixed shaft seat (6) is fixedly installed at the bottom of the mounting plate (2) at the position corresponding to the concentrated liquid discharge hole (3), a hexagonal rotating rod (7) is rotatably connected in the fixed shaft seat (6), and the hexagonal rotating rod (7) is located in the concentrated liquid discharge hole (3), a scraper (8) is fixedly installed on one side of the hexagonal rotating rod (7), and the scraper (8) is located in the liquid guide groove (5), a sealing bottom plate (9) is fixedly installed on the bottom of the mounting plate (2) through a threaded plunger (10), and a docking groove (11) connected to the liquid guide groove (5) is opened at the bottom of the mounting plate (2).

2. The electrodialysis concentration equipment for recovering and treating ammonium nitrate condensate by full membrane method according to claim 1 is characterized in that: The sealing bottom plate (9) and the liquid guide groove (5) are combined to deform to form a cavity for the scraper strip (8) to move.

3. The electrodialysis concentration equipment for recovering and treating ammonium nitrate condensate by full membrane method according to claim 1 is characterized in that: The scraper strip (8) is provided with a hollow groove (801), and the scraper strip (8) is a prismatic structure with small top and bottom and large middle.

4. The electrodialysis concentration equipment for recovering and treating ammonium nitrate condensate by full membrane method according to claim 1 is characterized in that: The mounting plate (2) is provided with a plurality of slots (12), two insertion rods (13) are movably inserted in the slots (12), the insertion rods (13) are provided with docking holes (14), a connecting braze (15) is movably inserted in the mounting plate (2), the bottom end of the connecting braze (15) passes through the docking holes (14) on the two insertion rods (13) in sequence, and a buffer pad (16) is fixedly installed on the ends of the two insertion rods (13) that are away from each other, and the buffer pad (16) is in contact with the side wall of the mounting plate (2).

5. The electrodialysis concentration equipment for recovering and treating ammonium nitrate condensate by full membrane method according to claim 4 is characterized in that: The two insertion rods (13) located in the same slot (12) are arranged in a centrally symmetrical manner.

6. The electrodialysis concentration equipment for recovering and treating ammonium nitrate condensate by full membrane method according to claim 1 is characterized by: A rubber frame (17) is provided between the partition plates (1) and is located directly below the mounting plate (2). A dialysis membrane (18) is movably mounted in the rubber frame (17). Notches (19) are provided at the top and bottom of the rubber frame (17).

7. The electrodialysis concentration equipment for recovering and treating ammonium nitrate condensate by full membrane method according to claim 6 is characterized by: The top of the dialysis membrane (18) is provided with a first trapezoidal bar (1801), the bottom of the dialysis membrane (18) is provided with a second trapezoidal bar (1802), the top of the rubber frame (17) is provided with a top groove (1701) corresponding to the first trapezoidal bar (1801), and the bottom of the rubber frame (17) is provided with a bottom through groove (1702) corresponding to the second trapezoidal bar (1802).

8. The electrodialysis concentration equipment for recovering and treating ammonium nitrate condensate by full membrane method according to claim 7 is characterized by: The vertical cross section of the dialysis membrane (18) is in the shape of a wavy line, and the projection area of ​​the dialysis membrane (18) is smaller than the projection area of ​​the rubber frame (17).

9. The electrodialysis concentration equipment for recovering and treating ammonium nitrate condensate by full membrane method according to claim 1, characterized in that: A clean liquid discharge pipe (20) is installed on the top of the mounting plate (2) containing pure water, and a first valve (21) is installed on the clean liquid discharge pipe (20); a concentrated liquid discharge pipe (22) is provided on the top of the mounting plate (2) containing concentrated liquid, and a second valve (23) is fixedly installed on the concentrated liquid discharge pipe (22); a bellows (24) is provided at the bottom end of the concentrated liquid discharge pipe (22), and the concentrated liquid discharge pipe (22) is connected to the mounting plate (2) through the bellows (24).

10. The electrodialysis concentration equipment for recovering and treating ammonium nitrate condensate by full membrane method according to claim 1, characterized in that: A side top frame (25) is arranged on one side of the partition plate (1) away from the rubber frame (17), and a side screw rod (26) is symmetrically arranged outside the side top frame (25). A plurality of assembly pieces (27) are movably mounted on the side screw rod (26), and the assembly piece (27) is in contact with the surface of the side top frame (25). A nut (28) is threadedly connected to the side screw rod (26), and a push rod (29) is fixedly mounted on one of the assembly pieces (27). A buckle (30) is fixedly mounted on the piston rod end of the push rod (29), and the buckle (30) is movably engaged with another assembly piece (27). The buckle (30) is movably plugged with a plugging rod (31); a U-shaped connecting rod (32) is fixedly installed on the top of the installation plate (2) containing the concentrated liquid; a connecting block (33) is arranged on the top of the U-shaped connecting rod (32); the connecting block (33) is movably engaged in the buckle (30); and the plugging rod (31) passes through the buckle (30) and the connecting block (33) in sequence; a mounting frame (34) is arranged on the partition plate (1); a top screw rod (35) is fixedly installed on the mounting frame (34); a nut (28) is threadedly installed on the top screw rod (35); and the end of the assembly piece (27) is movably sleeved on the top screw rod (35).

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