A desalting device for dinitrodiphenyl ether condensation liquid and its use method

Abstract

The present invention relates to the technical field of desalination devices, and specifically to a desalination device for dinitrodiphenyl ether condensation liquid and a method for using the same, comprising a filter barrel, wherein the inner end of the filter barrel is fixedly connected to a liquid outlet pipe, the outer surface of the liquid outlet pipe is fixedly connected to a plurality of support frames, the support frames are located inside the filter barrel, the inner end of the support frames is fixedly connected to a filter screen for filtering impurities, and the interior of the filter screen is fixedly penetrated by a water outlet pipe, the water outlet pipe is fixedly connected to the liquid outlet pipe, the outer surface of the filter barrel is fixedly connected to a liquid inlet pipe, the liquid to be filtered enters the interior of the filter barrel through the liquid inlet pipe, a cleaning sleeve is provided on the outer surface of the filter screen for removing stubborn filter cakes, the end of the support frame away from the liquid outlet pipe is fixedly connected to a base, an auxiliary slag discharge device is provided inside the base, a resonance rope is excited by high-pressure and high-speed airflow to generate a Karman vortex street effect, and a counterweight is driven to continuously knock on the inner wall of the filter screen, thereby effectively promoting the shedding of the filter cake, improving the cleaning efficiency, and ensuring the long-term stable operation of the filtration system.

Description

Technical Field

[0001] The present invention relates to the technical field of desalination devices, in particular to a desalination device for dinitrodiphenyl ether condensation liquid and a use method thereof. Background Art

[0002] Dinitrodiphenyl ether (DNP) is an important fine chemical intermediate widely used in electronics, aviation, aerospace and other fields. Its synthesis process usually produces a condensation liquid containing high salt concentrations, which requires desalination treatment to improve product purity. Traditional desalination methods generally use water washing methods, which have low efficiency, high energy consumption, and a large amount of wastewater. The wastewater contains high concentrations of nitrobenzene and para-nitrochlorobenzene, making wastewater treatment difficult, biochemical treatment difficult, and the operation process complicated.

[0003] After searching, it was found that the prior art publication number is CN216321149U, which discloses a sedimentation water filtration and desalting water device for titanium dioxide processing, the sedimentation water filtration and desalting water device for titanium dioxide processing includes a cylinder; an upper cover, the upper cover flange is installed on the top of the cylinder; a lower cover, the lower cover flange is installed on the bottom of the cylinder; a filter membrane roll, the filter membrane roll is arranged in the cylinder, and a filter channel is formed in the filter membrane roll; two permeable pressure plates, the two permeable pressure plates are respectively sealed and fitted on the top and bottom of the filter membrane roll, and the outer rings of the two permeable pressure plates are both sealed and fitted with the inner wall of the cylinder; two ring seats, the two ring seats are respectively fixedly installed on the side of the two permeable pressure plates away from the filter membrane roll. The sedimentation water filtration and desalting water device for titanium dioxide processing provided by this scheme has the advantage of being able to adjust the external drainage balance in time when the filter element is blocked while ensuring osmotic filtration.

[0004] Therefore, based on the above search and in combination with existing technologies, when processing high-concentration suspended solids or media that are prone to agglomeration, the filter residue attached to the outer surface of the filter screen is difficult to completely remove, and the residue in the filter pores is even more difficult to discharge, which can easily lead to deep blockage. In order to promote the shedding of the filter cake, although existing equipment often uses high-pressure airflow backflushing or intermittent vibration devices, the excitation effect is limited, and it is difficult to achieve continuous and stable cleaning, resulting in the filter cake easily agglomerating on the inner wall of the filter screen, increasing the difficulty of cleaning. At the same time, existing equipment is often unable to deeply clean the filter pores, and it is difficult to remove the inner wall attachments during the operation of the equipment, affecting the continuous operation capability and filtering effect of the system. For this reason, the present application proposes a desalination device for dinitrodiphenyl ether condensation liquid and a method for using the same. Summary of the Invention

[0005] The object of the present invention is to provide a desalination device for dinitrodiphenyl ether condensation liquid and a method for using the same, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a desalination device for dinitrodiphenyl ether condensation liquid, comprising a filter barrel, the inner end of the filter barrel is fixedly connected to a liquid outlet pipe, the outer surface of the liquid outlet pipe is fixedly connected to a plurality of support frames, the support frames are located inside the filter barrel, the inner end of the support frame is fixedly connected to a filter screen for filtering impurities, and the interior of the filter screen is fixedly penetrated by a water outlet pipe, the water outlet pipe is fixedly connected to the liquid outlet pipe, the outer surface of the filter barrel is fixedly connected to a liquid inlet pipe, the liquid to be filtered enters the interior of the filter barrel through the liquid inlet pipe, a cleaning sleeve is provided on the outer surface of the filter screen for removing stubborn filter cakes, the end of the support frame away from the liquid outlet pipe is fixedly connected to a base, and an auxiliary slag discharge device is provided inside the base.

[0007] As a further solution of the present invention, a high-pressure pipe is passed through the inner end of the filter barrel, and a plurality of diversion pipes are fixedly connected to the output end of the high-pressure pipe. By arranging a high-pressure pipe in the filter barrel and connecting a plurality of diversion pipes to its output end, multi-point distributed injection of high-pressure fluid can be achieved.

[0008] As a further solution of the present invention, the auxiliary slag discharge device includes a support sleeve, which is fixedly connected to the upper end of the base, and a plurality of support tubes are passed through the inner end of the support sleeve. The support tubes are arranged in a ring shape, and the bottom ends of the plurality of support tubes are connected by a connecting ring. A plurality of resonance ropes are provided between the filter screen and the water outlet pipe, and the resonance ropes correspond to the support sleeve. A through hole is provided at one end of the water outlet pipe close to the support sleeve, and the filtered solution flows into the interior of the water outlet pipe through the through hole.

[0009] As a further solution of the present invention, a movable plug is sleeved on the inner end of the support cylinder, and the upper end of the movable plug is fixedly connected to a center rod. A traction rod is rotatably installed on the end of the support cylinder close to the resonance rope, and the end of the traction rod away from the support cylinder is in contact with the outer surface of the resonance rope. The rigid connection between the movable plug and the center rod ensures direct transmission of driving force and reduces energy loss.

[0010] As a further solution of the present invention, a lower pressure ring is fixedly installed on the end of the center rod away from the movable plug. The lower pressure ring is sleeved on the outer surface of the traction rod. When the center rod moves downward, it drives the lower pressure ring. The lower pressure ring drives the traction rod to rotate and applies traction force to the resonance rope. The center rod moves downward to drive the lower pressure ring to rotate the traction rod, so that the resonance rope is subjected to force to produce resonance, which helps to improve the dredging efficiency, reduce blockage residues, and further improve the cleaning effect.

[0011] As a further solution of the present invention, a plurality of stabilizing sleeves are fixedly installed on the upper end bolt of the base, and the stabilizing sleeves are arranged in a ring shape. The outer surface of the base is provided with an air intake pipe through a clamp fixing sleeve, and the output end of the air intake pipe is connected to the input end of the stabilizing sleeve, and the input end of the air intake pipe is connected to the output end of the diversion pipe.

[0012] As a further solution of the present invention, a stabilizing tube is passed through the inner end of the stabilizing sleeve, and a movable cylinder is slidably connected to the inner end of the stabilizing tube. A rectangular hole is provided on the outer surface of the stabilizing tube, and a paddle is rotatably installed on the outer surface of the movable cylinder. A rectangular hole is provided on the outside of the stabilizing tube, and a paddle is installed on the outside of the movable cylinder, so that the paddle can extend out of the rectangular hole and contact the external component during rotation, thereby realizing automatic dialing or limit control, and improving the structural linkage and adjustment flexibility.

[0013] As a further solution of the present invention, a thumbwheel is rotatably mounted on the inner end of the stabilizing sleeve, an end of the paddle away from the movable cylinder is inserted into the thumbwheel, an upper end of the thumbwheel is fixedly connected to a driving gear, a passive block is rotatably mounted on the upper end of the stabilizing sleeve, an end of the passive block close to the thumbwheel is fixedly connected to a passive gear, and the passive gear is meshed with the driving gear;

[0014] The inner end of the stabilizing tube is fixedly sleeved with an output tube, and the output tube is passed through the interior of the movable cylinder. The inner end of the movable cylinder is fixedly welded with a driving rod, and the driving rod is passed through the interior of the output tube. The outer surface of the driving rod is sleeved with a sealing plug. An air outlet is provided at one end of the movable cylinder away from the output tube, and an air guide groove is provided at the inner end of the stabilizing tube.

[0015] As a further solution of the present invention, a gear column and a spiral rod are provided on the inner side of the support frame, the gear column and the spiral rod are staggered with each other, and are fixedly connected to their corresponding passive blocks respectively. A plurality of support surface shells are fixedly installed on the outer surface of the cleaning sleeve, the support surface shells are arranged in a ring shape, and the gear column and the spiral rod are respectively passed through the interior of the corresponding support surface shells, and a clamping block is passed through the inner end of the support surface shell corresponding to the spiral rod, and the clamping block is clamped in the spiral groove on the outer surface of the spiral rod.

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

[0017] 1. When the present invention is used, the screw rod rotates to drive the clamping block to move upward along the thread groove, so that the cleaning sleeve and the outer wall of the filter screen are scraped relative to each other, thereby effectively removing the filter residue firmly attached to the outer surface of the filter screen, improving the self-cleaning ability of the filter assembly, avoiding manual cleaning, improving work efficiency and extending the service life of the equipment;

[0018] 2. When the present invention is used, the cleaning ring is driven to rotate by the gear column, so that the cleaning brush can deeply clean the filter holes of the filter screen, effectively avoiding the clogging of the filter residue, ensuring that good permeability and high working efficiency can be maintained after multiple filtering operations, and improving the continuity and stability of the equipment operation;

[0019] 3. When the present invention is used, the high-pressure and high-speed airflow excites the resonance rope to produce the Karman vortex street effect, driving the counterweight block to continuously knock on the inner wall of the filter screen, thereby effectively promoting the shedding of the filter cake, improving the cleaning efficiency, reducing manual intervention, and ensuring the long-term stable operation of the filtration system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a schematic structural diagram of a desalination device for dinitrodiphenyl ether condensation liquid;

[0021] Figure 2 This is a schematic diagram of the structure inside the filter barrel;

[0022] Figure 3 It is a structural diagram of the support frame;

[0023] Figure 4 It is a schematic diagram of the structure above the base;

[0024] Figure 5 It is a schematic diagram of the structure between the support sleeve and the cleaning sleeve;

[0025] Figure 6 Schematic diagram of the structure inside the filter;

[0026] Figure 7 Schematic diagram of the structure inside the support tube;

[0027] Figure 8 Schematic diagram of the structure inside the shunt pipe;

[0028] Figure 9 It is a schematic diagram of the structure inside the stabilization sleeve;

[0029] Figure 10 This is a split diagram of the interior of the stabilizing tube;

[0030] Figure 11 This is a split diagram of the cleaning cover and the support surface shell;

[0031] Figure 12 It is a structural diagram of the supporting surface shell and the block.

[0032] In the figure: 1. Filter barrel; 2. Liquid outlet pipe; 3. Liquid inlet pipe; 4. High-pressure pipe; 5. Slag outlet;

[0033] 101. Support frame; 102. Water outlet pipe; 103. Filter; 104. Air inlet pipe; 105. Diverter pipe; 106. Base; 107. Negative pressure pipe;

[0034] 201, cleaning sleeve; 202, support surface shell; 203, gear column; 204, screw rod; 205, gear ring; 206, cleaning ring; 207, movable gear; 208, block; 209, passive drive rod;

[0035] 301, stabilizing sleeve; 302, passive block; 303, passive gear; 304, movable cylinder; 305, stabilizing tube; 306, paddle; 307, dial; 308, driving gear; 309, air guide groove; 310, return spring; 311, driving rod; 312, buffer ring; 313, sealing plug; 314, output tube;

[0036] 401. Support sleeve; 402. Connecting ring; 403. Support tube; 404. Resonance rope; 405. Extension tube; 406. Negative pressure block; 407. Movable plug; 408. Center rod; 409. Lower pressure ring; 410. Traction rod. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figure 1-Figure 4 A desalination device for dinitrodiphenyl ether condensation liquid and its use method include a filter barrel 1, the inner end of the filter barrel 1 is fixedly connected to a liquid outlet pipe 2 by bolts, the outer surface of the liquid outlet pipe 2 is fixedly connected to a plurality of support frames 101, the support frames 101 are located inside the filter barrel 1, the inner end of the support frame 101 is fixedly connected to a filter screen 103 by self-locking bolts for filtering impurities, the self-locking bolts can effectively prevent the filter screen 103 from loosening under high-frequency vibration, ensuring stable fixation, and the inner part of the filter screen 103 is fixedly penetrated with a water outlet pipe 102, the water outlet The tube 102 is fixedly connected to the liquid outlet pipe 2, and the outer surface of the filter barrel 1 is fixedly connected to the liquid inlet pipe 3. The liquid to be filtered enters the interior of the filter barrel 1 through the liquid inlet pipe 3, and then the liquid is filtered through the filter mesh 103, flows into the liquid outlet pipe 2 through the outlet pipe 102, and is then discharged. A slag discharge port 5 is provided at the bottom of the filter barrel 1 for discharging the filter cake formed after filtration. A cleaning sleeve 201 is provided on the outer surface of the filter mesh 103 for removing stubborn filter cake. The end of the support frame 101 away from the liquid outlet pipe 2 is fixedly connected to the base 106, and an auxiliary slag discharge device is provided inside the base 106.

[0039] like Figure 2 、 Figure 3 As shown, a high-pressure pipe 4 is passed through the inner end of the filter barrel 1, and a plurality of diversion pipes 105 are fixedly connected to the output end of the high-pressure pipe 4. Specifically, a plurality of support frames 101 are distributed in a rectangular array, and each diversion pipe 105 corresponds to each column of support frames 101.

[0040] like Figure 3-Figure 7As shown, the auxiliary slag discharge device includes a support sleeve 401, which is fixedly connected to the upper end of the base 106 by self-locking bolts. A plurality of support cylinders 403 are passed through the inner end of the support sleeve 401. The support cylinders 403 are arranged in a ring shape, and the bottom ends of the plurality of support cylinders 403 are connected by a connecting ring 402. A plurality of resonance ropes 404 are provided between the filter screen 103 and the water outlet pipe 102. The resonance ropes 404 are in a stretched state. The resonance ropes 404 correspond to the support sleeve 401. A through hole is provided at one end of the water outlet pipe 102 close to the support sleeve 401, and the filtered solution flows into the interior of the water outlet pipe 102 through the through hole.

[0041] Specifically, the liquid outlet pipe 2 is divided into two pipes: one pipe collects the filtrate, and the other pipe is connected to the compressor (not shown in the figure) for back-blowing air supply. A solenoid valve is configured at the branch point to achieve working state switching. Specifically, the air inlet of the high-pressure pipe 4 is also connected to the output end of the compressor.

[0042] A plurality of counterweights are fixedly installed on the outer surface of the resonance rope 404, and the counterweights maintain a certain distance from the inner wall of the filter screen 103. After the filtration is completed, the liquid inlet pipe 3 stops feeding, and the liquid outlet pipe 2 stops discharging. Then, gas (compressed air / inert gas) is backblown toward the filter barrel 1 through the liquid outlet pipe 2. Then, a high-speed airflow is ejected from the feed port of the liquid outlet pipe 2, and a Karman vortex street effect is generated when it flows through the counterweights on the surface of the resonance rope 404, inducing the resonance rope 404 to vibrate, driving the counterweights to knock on the inner wall of the filter screen 103, and promoting the falling off of the filter cake.

[0043] The inner end of the support cylinder 403 is sleeved with a movable plug 407, and the outer surface of the movable plug 407 is sleeved with a sealing rubber ring, which fits with the inner wall of the support cylinder 403 to improve air tightness. The outer surface of the movable plug 407 is provided with a plurality of air holes, and the air holes are located above the movable plug 407. A limiting ring is fixedly welded to the inner bottom end of the support cylinder 403 to prevent the movable plug 407 from falling out of the support cylinder 403. A center rod 408 is fixedly welded to the upper end of the movable plug 407. A traction rod 410 is rotatably installed at one end of the support cylinder 403 close to the resonance rope 404 through a rotating shaft, and the end of the traction rod 410 away from the support cylinder 403 is in contact with the outer surface of the resonance rope 404. Specifically, an hourglass-shaped support wheel is installed at the end of the traction rod 410, which is in contact with the surface of the resonance rope 404, can evenly distribute stress and prevent local shear fracture.

[0044] like Figure 7 As shown, a lower pressure ring 409 is fixedly welded to one end of the center rod 408 away from the movable plug 407. The lower pressure ring 409 is sleeved on the outer surface of the traction rod 410. When the center rod 408 moves downward, the lower pressure ring 409 is driven. The lower pressure ring 409 drives the traction rod 410 to rotate and applies traction to the resonance rope 404. When tension is applied to the resonance rope 404, the vibration frequency of the resonance rope 404 is increased, which significantly improves the cake discharge efficiency of the filter screen 103.

[0045] The support tube 403 is fixedly connected to one end of the resonance rope 404 with an extension tube 405, and a negative pressure block 406 is passed through the interior of the extension tube 405. The outer surface of the negative pressure block 406 is covered with a sealing rubber gasket, which fits with the inner wall of the extension tube 405 to increase air tightness. The bottom end of the resonance rope 404 is fixedly connected to the negative pressure block 406, and the upper end is fixedly connected to the inner upper end of the filter screen 103. When the resonance rope 404 vibrates or is pulled, it drives the negative pressure block 406 to move. Since a closed air chamber is formed on the back side of the negative pressure block 406, negative pressure resistance is generated during movement, thereby maintaining a constant tension state of the resonance rope 404. The negative pressure block 406 and the extension tube 405 are connected by a safety rope to prevent the negative pressure block 406 from being excessively dragged.

[0046] like Figure 5 、 Figure 8 As shown, the end of the connecting ring 402 away from the support sleeve 401 is fixedly connected to the negative pressure tube 107 (not shown in the figure), and the bottom end of the negative pressure tube 107 is passed through the inside of the diversion tube 105. Specifically, the bottom end of the negative pressure tube 107 is flat, and the flat mouth faces the direction of air flow. When the high-speed airflow flows and passes through the flat mouth at the bottom end of the negative pressure tube 107, negative pressure is generated in the negative pressure tube 107. At this time, the movable plug 407 moves in the direction away from the support tube 403 under the action of the negative pressure.

[0047] Example 2: Please refer to Figure 5 、 Figures 8-10 A desalination device for dinitrodiphenyl ether condensation liquid and a method for using the same are disclosed. Based on Example 1, a plurality of stabilizing sleeves 301 are fixedly installed on the upper end of a base 106 by self-locking bolts. The stabilizing sleeves 301 are arranged in a ring shape and are located in the gaps of a support frame 101. An air inlet pipe 104 is provided on the outer surface of the base 106 via a clamp fixing sleeve. The air inlet pipe 104 is annular, and the output end of the air inlet pipe 104 is connected to the input end of the stabilizing sleeve 301, and the input end of the air inlet pipe 104 is connected to the output end of the diverter pipe 105.

[0048] A stabilizing tube 305 is passed through the inner end of the stabilizing sleeve 301. The inner end of the stabilizing tube 305 is slidably connected to the movable cylinder 304. A rectangular hole is formed on the outer surface of the stabilizing tube 305. A paddle 306 is rotatably mounted on the outer surface of the movable cylinder 304 via a rotating shaft. The paddle 306 is clamped to the movable cylinder 304 via a reset torsion spring. Specifically, a limit block is fixedly welded to the outer surface of the movable cylinder 304. The limit block contacts the outer surface of the paddle 306. At this time, the paddle 306 can only rotate in the direction without restriction.

[0049] A thumbwheel 307 is rotatably mounted on the inner end of the stabilizing sleeve 301. The end of the paddle 306 away from the movable cylinder 304 is inserted into the thumbwheel 307. A driving gear 308 is fixedly welded to the upper end of the thumbwheel 307. A passive block 302 is rotatably mounted on the upper end of the stabilizing sleeve 301. A passive gear 303 is fixedly welded to the end of the passive block 302 close to the thumbwheel 307. The passive gear 303 is meshed with the driving gear 308.

[0050] The driving gear 308 has a larger diameter than the driven gear 303 and can provide a greater torque output when rotating.

[0051] like Figure 4 、 Figure 9 、 Figure 12 As shown, a gear column 203 and a spiral rod 204 are provided on the inner side of the support frame 101. The gear column 203 and the spiral rod 204 are staggered with each other and are fixedly connected to their corresponding passive blocks 302. A plurality of support surface shells 202 are fixedly installed on the outer surface of the cleaning sleeve 201. The support surface shells 202 are arranged in a ring shape. The support surface shells 202 are passed through the gap of the support frame 101, and the gear column 203 and the spiral rod 204 are respectively passed through the interior of the corresponding support surface shells 202. A clamping block 208 is passed through the inner end of the support surface shell 202 corresponding to the spiral rod 204. The clamping block 208 is clamped in the spiral groove on the outer surface of the spiral rod 204. When the spiral rod 204 rotates, the clamping block 208 is clamped in the spiral groove, thereby driving the support surface shell 202 and the cleaning sleeve 201 to move upward. As the cleaning sleeve 201 moves upward, the stubborn filter cake on the outer surface of the filter screen 103 is scraped off.

[0052] Specifically, two passive drive rods 209 are provided on the inner end of the support surface shell 202 corresponding to the spiral rod 204. The two passive drive rods 209 are arranged up and down, and the two passive drive rods 209 can only move up and down. Two inclined sliding holes are provided on the outer surface of the clamping block 208. The ends of the two drive rods 311 close to the clamping block 208 are respectively provided in the inclined sliding holes, and the ends of the passive drive rods 209 away from the clamping block 208 are respectively exposed on the outer surface of the support surface shell 202. When the passive drive rod 209 above the clamping block 208 is forced to move downward, under the action of the inclined sliding holes, the clamping block 208 is driven to move in the direction away from the support surface shell 202;

[0053] At this time, the passive driving rod 209 below the block 208 is forced to move downward. Conversely, when the passive driving rod 209 below the block 208 is forced to move upward, the block 208 is forced to move toward the inside of the support surface shell 202.

[0054] like Figure 10When the ignition coil 314 is in the airtight position, the ignition coil 314 is in the airtight position, and the ignition coil 314 is in the airtight position, so that the ignition coil 314 is in the airtight position.

[0055] Specifically, the diameter of the air outlet of the output tube 314 is larger than the diameter of the driving rod 311. A buffer ring 312 is fixedly installed on the inner end of the output tube 314. The buffer ring 312 is made of silicone rubber and has good anti-fatigue properties. The inner diameter of the buffer ring 312 is slightly smaller than the outer diameter of the sealing plug 313. Every time the sealing plug 313 passes through the buffer ring 312, it will be blocked by the buffer ring 312.

[0056] A movable gear 207 is rotatably mounted on the inner end of the support surface shell 202 corresponding to the gear column 203 via a rotating shaft. A cleaning ring 206 for deeply cleaning the filter 103 is rotatably mounted on the inner end of the cleaning sleeve 201. A cleaning brush is fixedly mounted on the inner end of the cleaning ring 206. When the cleaning ring 206 rotates, the cleaning brush cleans the filter holes of the filter 103 at a deeper level, thereby maintaining a high working efficiency during multiple filtering operations.

[0057] The outer surface of the cleaning ring 206 is fixedly welded with a gear ring 205, and the movable gear 207 is engaged with the gear ring 205, and the gear column 203 is engaged with the movable gear 207. When the gear column 203 rotates, it can still drive the movable gear 207 to rotate even if the movable gear 207 moves upward.

[0058] The working principle of the present invention is:

[0059] During operation, the heated dinitrodiphenyl ether condensate to be filtered is injected into the interior of the filter barrel 1 through the liquid inlet pipe 3. The solution is filtered after passing through the filter screen 103 and then flows out through the water outlet pipe 102 and the liquid outlet pipe 2. After working for a period of time, filter residue adheres to the outer surface of the filter screen 103 and the feeding is stopped. Then, the solenoid valve inside the liquid outlet pipe 2 changes the liquid outlet pipe 2 to be connected to the compressor. The output end of the compressor outputs high-pressure and high-speed air and blows it out through the water outlet pipe 102. When it flows through the counterweight block on the surface of the resonance rope 404, a Karman vortex street effect is generated, inducing the resonance rope 404 to vibrate, driving the counterweight block to knock on the inner wall of the filter screen 103, and promoting the shedding of the filter cake.

[0060] At the same time, high-speed air flows through the high-pressure pipe 4 to the interior of each branch pipe 105 and out of the air inlet pipe 104. The air enters the interior of the output pipe 314 and is blown out by the output pipe 314, pushing the movable cylinder 304 to move toward the output pipe 314. When the movable cylinder 304 moves, it drives the dial 307 to rotate through the paddle 306. The rotation of the dial 307 drives the driving gear 308 to rotate. The driving gear 308 drives the driven gear 303 to rotate, so that the driven block 302 starts to rotate, and the screw rod 204 and the gear column 203 also rotate a certain angle.

[0061] After the movable cylinder 304 moves in the direction away from the output pipe 314, the sealing plug 313 is driven to move by the limit block on the outer surface of the driving rod 311 until the air outlet is connected to the air guide groove 309. At this time, the sealing plug 313 blocks the output port of the output pipe 314, and the return spring 310 is compressed. At this time, the movable cylinder 304 is no longer subjected to thrust, and the return spring 310 releases its elastic force, pushing the movable cylinder 304 to move toward the output pipe 314. After moving a distance, the limit block on the outer surface of the driving rod 311 close to the movable cylinder 304 pushes the sealing plug 313 to move, so that the sealing plug 313 no longer blocks the output port of the output pipe 314. At this time, the paddle 306 rotates under the contact with the outer surface of the dial wheel 307, but returns to its original state due to the action of the return torsion spring, and then returns to the inside of the dial wheel 307 again, and repeats this process.

[0062] When the screw rod 204 rotates, the block 208 is stuck in the thread groove on the outer surface of the screw rod 204 and starts to move upward, scraping off the filter residue on the outer surface of the filter screen 103 that is difficult to fall off through the cleaning sleeve 201;

[0063] When the gear column 203 rotates, the gear ring 205 is driven to rotate through the movable gear 207. At this time, the cleaning ring 206 starts to rotate. When the cleaning ring 206 rotates, it uses the cleaning brush to clean the filter holes of the filter screen 103 at a deeper level, and can still maintain a high working efficiency during multiple filtering operations.

[0064] When the cleaning sleeve 201 moves to the uppermost end of the support frame 101, the passive drive rod 209 located above the block 208 contacts the inner wall of the support frame 101 and is forced to move downward. Under the action of the inclined sliding hole, the block 208 is driven to move in the direction away from the support surface shell 202. At this time, the block 208 is no longer clamped in the spiral groove on the outer surface of the spiral rod 204. At this time, the cleaning sleeve 201 falls downward under the action of gravity and contacts the bottom end of the support frame 101. The passive drive rod 209 below the block 208 is forced to move upward. The block 208 is now forced to move toward the spiral rod 204. Since the filter screen 103 is in a vibrating state, the cleaning sleeve 201 will not be stuck on the outer surface of the filter screen 103 due to resistance during its downward movement.

[0065] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A desalination device for dinitrodiphenyl ether condensation liquid, comprising a filter barrel (1), characterized in that: The inner end of the filter barrel (1) is fixedly connected to a liquid outlet pipe (2), and the outer surface of the liquid outlet pipe (2) is fixedly connected to a plurality of support frames (101). The support frames (101) are located inside the filter barrel (1), and the inner end of the support frame (101) is fixedly connected to a filter screen (103) for filtering impurities. A water outlet pipe (102) is fixedly passed through the interior of the filter screen (103), and the water outlet pipe (102) is fixedly connected to the liquid outlet pipe (2). The outer surface of the filter barrel (1) is fixedly connected to a liquid inlet pipe (3), and the liquid to be filtered enters the interior of the filter barrel (1) through the liquid inlet pipe (3). A cleaning sleeve (201) is sleeved on the outer surface of the filter screen (103). The end of the support frame (101) away from the liquid outlet pipe (2) is fixedly connected to a base (106), and an auxiliary slag discharge device is provided inside the base (106); A plurality of support surface shells (202) are fixedly mounted on the outer surface of the cleaning sleeve (201), the support surface shells (202) are arranged in a ring shape, and the support surface shells (202) are inserted into the gaps of the support frame (101); The inner end of the filter barrel (1) is provided with a high-pressure pipe (4), and the output end of the high-pressure pipe (4) is fixedly connected to a plurality of shunt pipes (105). The auxiliary slag discharge device comprises a support sleeve (401), and the support sleeve (401) is fixedly connected to the upper end of the base (106). The inner end of the support sleeve (401) is provided with a plurality of support cylinders (403), and the support cylinders (403) are arranged in a ring shape. The bottom ends of the plurality of support cylinders (403) are connected by a connecting ring (402). The filter screen A plurality of resonance ropes (404) are provided between (103) and the water outlet pipe (102), the resonance ropes (404) corresponding to the support sleeve (401), a through hole is provided at one end of the water outlet pipe (102) close to the support sleeve (401), and the filtered solution flows into the interior of the water outlet pipe (102) through the through hole, and a negative pressure pipe (107) is fixedly connected to one end of the communication ring (402) away from the support sleeve (401), and the bottom end of the negative pressure pipe (107) is passed through the interior of the diversion pipe (105); The inner end of the support cylinder (403) is sleeved with a movable plug (407), the upper end of the movable plug (407) is fixedly connected to a center rod (408), and a traction rod (410) is rotatably mounted on one end of the support cylinder (403) close to the resonance rope (404), and the end of the traction rod (410) away from the support cylinder (403) contacts the outer surface of the resonance rope (404); A lower pressure ring (409) is fixedly mounted on one end of the center rod (408) away from the movable plug (407). The lower pressure ring (409) is sleeved on the outer surface of the traction rod (410). When the center rod (408) moves downward, the lower pressure ring (409) is driven. The lower pressure ring (409) drives the traction rod (410) to rotate and applies traction to the resonance rope (404).

2. A desalination device for dinitrodiphenyl ether condensation liquid according to claim 1, characterized in that: The upper end bolt of the base (106) is fixedly mounted with a plurality of stabilizing sleeves (301), the stabilizing sleeves (301) being arranged in a ring shape, the outer surface of the base (106) is provided with an air intake pipe (104) via a clamp fixing sleeve, and the output end of the air intake pipe (104) is connected to the input end of the stabilizing sleeve (301), and the input end of the air intake pipe (104) is connected to the output end of the diversion pipe (105), and the support surface shell (202) and the cleaning sleeve (201) are moved upwards to scrape off the stubborn filter cake on the outer surface of the filter screen (103).

3. A desalination device for dinitrodiphenyl ether condensation liquid according to claim 2, characterized in that: The inner end of the stabilizing sleeve (301) is penetrated by a stabilizing tube (305), the inner end of the stabilizing tube (305) is slidably connected to a movable cylinder (304), a rectangular hole is opened on the outer surface of the stabilizing tube (305), and a paddle (306) is rotatably mounted on the outer surface of the movable cylinder (304).

4. A desalination device for dinitrodiphenyl ether condensation liquid according to claim 3, characterized in that: A thumbwheel (307) is rotatably mounted on the inner end of the stabilizing sleeve (301), an end of the paddle (306) away from the movable cylinder (304) is inserted into the inside of the thumbwheel (307), an upper end of the thumbwheel (307) is fixedly connected to a driving gear (308), a passive block (302) is rotatably mounted on the upper end of the stabilizing sleeve (301), an end of the passive block (302) close to the thumbwheel (307) is fixedly connected to a passive gear (303), and the passive gear (303) is meshed with the driving gear (308); An output tube (314) is fixedly sleeved on the inner end of the stabilizing tube (305), and the output tube (314) is passed through the interior of the movable tube (304). A driving rod (311) is fixedly welded to the inner end of the movable tube (304), and the driving rod (311) is passed through the interior of the output tube (314). A sealing plug (313) is sleeved on the outer surface of the driving rod (311). An air outlet is provided at one end of the movable tube (304) away from the output tube (314), and an air guide groove (309) is provided at the inner end of the stabilizing tube (305).

5. A desalination device for dinitrodiphenyl ether condensation liquid according to claim 4, characterized in that: A gear column (203) and a screw rod (204) are provided on the inner side of the support frame (101), the gear column (203) and the screw rod (204) are interlaced with each other and are fixedly connected to their corresponding passive blocks (302), and the gear column (203) and the screw rod (204) are respectively passed through the interior of the corresponding support surface shell (202), and a clamping block (208) is passed through the inner end of the support surface shell (202) corresponding to the screw rod (204), and the clamping block (208) is clamped in the spiral groove on the outer surface of the screw rod (204).

6. A method for using a desalination device for dinitrodiphenyl ether condensation liquid, used for the desalination device for dinitrodiphenyl ether condensation liquid according to claim 5, characterized in that: The following steps are involved: S1: After the movable cylinder (304) moves in a direction away from the output tube (314), the sealing plug (313) is driven to move by the limit block on the outer surface of the driving rod (311) until the air outlet is connected to the air guide groove (309). At this time, the sealing plug (313) blocks the output port of the output tube (314). At this time, the movable cylinder (304) is no longer subjected to the thrust, and then the movable cylinder (304) is pushed to move in the direction of the output tube (314). After moving a certain distance, the limit block on the outer surface of the driving rod (311) close to the movable cylinder (304) pushes the sealing plug (313) to move, so that the sealing plug (313) no longer blocks the output port of the output tube (314). At this time, the paddle (306) returns to the inside of the paddle wheel (307) again; S2: When the spiral rod (204) rotates, it drives the supporting surface shell (202) to move upward, and the supporting surface shell (202) drives the cleaning sleeve (201) to move upward, and the filter residue that is difficult to fall off the outer surface of the filter screen (103) is scraped off by the cleaning sleeve (201).

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