Nanofiltration concentrate recirculation device

Abstract

The application provides a nanofiltration concentrate backfill device, comprising a compression assembly, a rotating drive assembly and a nanofiltration assembly; the compression assembly comprises a compression cylinder, a plurality of hole rods, a bottom plate structure and an opening and closing structure; the rotating drive assembly is used for driving the compression cylinder to rotate; nanofiltration concentrate is injected into a nanofiltration cavity, and the nanofiltration concentrate flows from a plurality of pores inside a garbage block to make the inside of the garbage block contact and react with the nanofiltration concentrate. The nanofiltration concentrate backfill device realizes automatic compression of garbage and automatic backfill of nanofiltration concentrate by cooperation of the compression assembly, the rotating drive assembly and the nanofiltration assembly, can recycle waste resources, can intercept organic pollutants in the nanofiltration concentrate through physical and chemical actions with the garbage, and can promote degradation of garbage waste by recycling of the nanofiltration concentrate. The nanofiltration concentrate backfill device is simple and low in cost, is convenient to assemble and maintain, is friendly to the environment and small in pollution, and is suitable for large-scale popularization and use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concentrated liquid recharging equipment, in particular to a nanofiltration concentrated liquid recharging device. BACKGROUND

[0002] At present, with the continuous improvement of environmental protection standards, it is required that the coal chemical industry must implement more stringent environmental protection standards. In addition to containing a large amount of organic pollutants, the high-salinity wastewater generated by the coal chemical industry also contains a large amount of inorganic salts. The nanofiltration treatment through the nanofiltration membrane can effectively and substantially reduce the inorganic salt concentration in the wastewater. However, the concentrated waste liquid (i.e. nanofiltration concentrated liquid) obtained after nanofiltration still contains a large amount of organic pollutants. Direct discharge into surface water will cause pollution and death of freshwater organisms. If discharged into the municipal sewage treatment system, it will cause a large number of microorganisms in the biological tank to die and the water quality to deteriorate. Therefore, the nanofiltration concentrated liquid needs to be further treated.

[0003] The prior art uses evaporation crystallization method to treat the nanofiltration concentrated liquid in the field of coal chemical industry. The evaporation crystallization method concentrates organic matter and high-salt components. This method produces a large amount of hazardous waste and miscellaneous salt, and cannot effectively treat the nanofiltration concentrated liquid, and also causes resource waste. Therefore, the recharging technology is now used to treat the nanofiltration concentrated liquid.

[0004] The nanofiltration concentrated liquid recharging treatment technology is a technology that treats the concentrated liquid generated in the nanofiltration process and re-injects it into the ground. The nanofiltration concentrated liquid recharging treatment technology usually includes the following steps: 1. Concentrated liquid collection: collect the concentrated liquid generated in the nanofiltration process and store it in a special container; 2. Pretreatment: pretreat the concentrated liquid, such as adjusting the pH value, removing suspended solids, etc., to improve the subsequent treatment effect; 3. Advanced treatment: use physical, chemical or biological methods to treat the concentrated liquid, such as reverse osmosis, electrodialysis, ion exchange, advanced oxidation, etc., to remove harmful substances in the concentrated liquid; 4. Recharge: re-inject the treated concentrated liquid into the landfill, usually directly vertically recharging into the landfill, which can effectively remove COD (Chemical Oxygen Demand), ammonia nitrogen and total nitrogen, etc. organic pollutants in the nanofiltration concentrated liquid, and at the same time, the nanofiltration concentrated liquid can also promote further degradation of the garbage.

[0005] In the step of recharging the nanofiltration concentrated liquid into the landfill site, the nanofiltration concentrated liquid is easily affected by the shape, depth, size and other characteristics of different garbage piles in the landfill site, so that the nanofiltration concentrated liquid is not uniformly contacted with the garbage in different directions in the garbage pile, the liquid flow rate of the nanofiltration concentrated liquid into the garbage pile fluctuates greatly, and the garbage in the garbage pile cannot be uniformly and quickly contacted with the nanofiltration concentrated liquid, which seriously reduces the speed and efficiency of the nanofiltration concentrated liquid and the garbage degradation, and further reduces the efficiency and effect of the nanofiltration concentrated liquid recharging treatment. SUMMARY

[0006] The application provides a nanofiltration concentrated liquid recharging device to solve the problem that the nanofiltration concentrated liquid is not uniformly contacted with the garbage in different directions in the garbage pile, the liquid flow rate of the nanofiltration concentrated liquid into the garbage pile fluctuates greatly, and the garbage in the garbage pile cannot be uniformly and quickly contacted with the nanofiltration concentrated liquid, which seriously reduces the speed and efficiency of the nanofiltration concentrated liquid and the garbage degradation, and further reduces the efficiency and effect of the nanofiltration concentrated liquid recharging treatment.

[0007] In order to solve the above problems, the application provides a nanofiltration concentrated liquid recharging device, which comprises a compression assembly, a rotating driving assembly and a nanofiltration assembly. The compression assembly comprises a compression cylinder, a plurality of hole retaining rods, a bottom plate structure and an opening and closing structure. The compression cylinder has a compression cavity inside. The upper part and the lower part of the compression cylinder have a garbage inlet and a garbage outlet, respectively. The garbage inlet and the garbage outlet are communicated with the compression cavity. The hole retaining rods are telescopically arranged on the bottom plate structure, and at least part of them are located in the compression cavity. The hole retaining rods are arranged at intervals. The bottom plate structure is movably arranged on the compression cylinder and located at the garbage outlet, and is used for opening and closing the garbage outlet. The opening and closing structure is connected with the bottom plate structure and is used for driving the bottom plate structure to move. When the bottom plate structure closes the garbage outlet, the garbage is poured into the compression cavity and compressed. The hole retaining rods are in an elongated state to form a plurality of pores in the garbage block formed after compression. The rotating driving assembly is connected with the compression cylinder. The nanofiltration assembly comprises a nanofiltration cylinder. The nanofiltration cylinder has a nanofiltration cavity inside. The upper part of the nanofiltration cylinder has a pouring opening. The pouring opening is communicated with the nanofiltration cavity. The rotating driving assembly is used for driving the compression cylinder to rotate. The compression cylinder has an avoiding state and a pouring state. In the avoiding state, the compression cylinder does not block the pouring opening. In the pouring state, the compression cylinder is located above the pouring opening. The opening and closing structure drives the bottom plate structure to open the garbage outlet. The hole retaining rods are in a shortened state to make the garbage block formed after compression in the compression cavity pass through the garbage outlet and the pouring opening into the nanofiltration cavity in sequence. The nanofiltration concentrated liquid is injected into the nanofiltration cavity. The nanofiltration concentrated liquid flows from the plurality of pores in the garbage block to make the garbage block contact with the nanofiltration concentrated liquid.

[0008] Further, the bottom plate structure comprises: a first bottom plate, a first rotating arm, a second bottom plate and a second rotating arm, a plurality of hole rods are arranged on the first bottom plate and the second bottom plate in a telescopic and spaced manner; the first rotating arm and the second rotating arm are arranged on both sides of the compression cylinder in a rotatable manner, the first bottom plate is arranged at one end of the first rotating arm, the second bottom plate is arranged at one end of the second rotating arm, and the opening and closing structure is connected with the other end of the first rotating arm and the other end of the second rotating arm; wherein the opening and closing structure drives the other end of the first rotating arm and the other end of the second rotating arm to move at the same time, drives the first bottom plate and the second bottom plate to rotate at the same time, and opens and closes the garbage outlet; the rotating directions of the first bottom plate and the second bottom plate are opposite.

[0009] Further, the opening and closing structure comprises a guide frame and a switch part, the outer periphery of the compression cylinder has a guide block extending in the vertical direction; the guide frame is sleeved on the guide block in a slidable manner and is limited in position with the guide block; the guide frame has a hollow slot inside, the hollow slot is in sliding and limiting position cooperation with the other end of the first rotating arm and the other end of the second rotating arm; the switch part is arranged on the outer periphery of the compression cylinder and is used for locking the guide frame; wherein when the switch part locks the guide frame, the guide frame is fixedly arranged, and the first bottom plate and the second bottom plate simultaneously close the garbage outlet; when the switch part releases the guide frame, the guide frame moves downward along the guide block under the action of gravity, the other end of the first rotating arm and the other end of the second rotating arm slide relative to the hollow slot and move downward at the same time, drive the first bottom plate and the second bottom plate to rotate reversely at the same time, and open the garbage outlet.

[0010] Further, the switch part comprises a positioning block and a plug rod, the plug rod is made of magnetic material, the positioning block is fixedly arranged on the outer periphery of the compression cylinder, and the plug rod is elastically arranged on the positioning block through a spring; the guide frame has a positioning hole, the plug rod extends into or out of the positioning hole to lock or release the guide frame; the nanofiltration concentrated liquid backfilling device further comprises a control assembly, the control assembly is arranged on the nanofiltration cylinder and is arranged correspondingly with the compression assembly; the control assembly has an electromagnet, in the pouring state, the compression cylinder is located above the pouring opening, the electromagnet of the control assembly controls the plug rod to extend out of the positioning hole through magnetic force to release the guide frame, the guide frame moves downward along the guide block under the action of gravity, drives the first bottom plate and the second bottom plate to rotate reversely at the same time, and opens the garbage outlet; in the avoiding state, the compression cylinder does not block the pouring opening, the magnetic force of the electromagnet does not affect the plug rod, the spring drives the plug rod to extend into the positioning hole to lock the guide frame, and the first bottom plate and the second bottom plate simultaneously close the garbage outlet.

[0011] Further, the control assembly comprises a vertical plate, a detection controller, a hanging rope, a hook, a buffer pad, a torsion spring and a swing arm; the vertical plate is fixedly arranged on the outer wall of the nanofiltration cartridge and corresponds to the compression assembly; the detection controller is arranged on the vertical plate and faces the compression cylinder; the buffer pad is arranged on the vertical plate and faces the swing arm; one end of the hanging rope is connected with the detection controller and the other end is connected with the hook; the hook is slidably arranged on the vertical plate; one end of the swing arm is rotatably arranged on the vertical plate and cooperates with the torsion spring; the hook cooperates with the rotating end of the swing arm; the electromagnet is arranged at the other end of the swing arm; when the detection controller detects that the compression cylinder is in the dumping state, the detection controller controls the movement of the hanging rope so that the hook is disconnected with the swing arm; the swing arm is driven by the torsion spring to rotate to abut against the buffer pad; the buffer pad is used for buffering the swing arm; the other end of the swing arm drives the electromagnet to approach the insertion rod; and the electromagnet controls the insertion rod to extend out of the positioning hole through magnetic force.

[0012] Further, the first bottom plate and / or the second bottom plate has a sealing strip, and the sealing strip is made of elastic material; in the avoiding state, the first bottom plate and the second bottom plate jointly close the garbage outlet, and the sealing strip is arranged between the first bottom plate and the second bottom plate and is used for sealing the gap between the first bottom plate and the second bottom plate.

[0013] Further, the rotating drive assembly comprises a rotating drum, a limiting piece, a lifting rod and a hydraulic cylinder; the hydraulic cylinder is drivingly connected with one end of the lifting rod and is used for driving the lifting rod to lift and lower; the other end of the lifting rod is connected with one end of the rotating drum; the other end of the rotating drum is fixedly connected with the compression cylinder; the rotating drum has a spiral groove which spirally extends along the circumference of the rotating drum; the limiting piece is fixedly arranged on the compression cylinder and has a limiting protrusion; the limiting protrusion is in sliding limiting cooperation with the inner wall of the spiral groove; the rotating drum is rotatable relative to the lifting rod; the lifting rod drives the rotating drum to lift and lower; the limiting protrusion and the spiral groove are relatively slid to drive the rotating drum to rotate relative to the lifting rod so as to drive the compression cylinder to rotate; one end of the spiral groove located at the upper side is a first end; one end of the spiral groove located at the lower side is a second end; when the limiting protrusion is located at the first end, the compression cylinder is in the dumping state; when the limiting protrusion is located at the second end, the compression cylinder is in the avoiding state.

[0014] Further, the nanofiltration assembly further comprises a drainage funnel which is detachably arranged on the nanofiltration cartridge; the drainage funnel has a drainage cavity inside; two ends of the drainage funnel are respectively a first port and a second port; the first port and the second port are respectively communicated with the drainage cavity; the second port is communicated with the dumping port; the diameter of the first port is larger than that of the second port so as to guide the nanofiltration concentrated solution to enter the nanofiltration cavity.

[0015] Further, the nanofiltration cartridge comprises a cartridge body, a side cover and a locking block, the cartridge body has a nanofiltration cavity inside, the upper part of the cartridge body has a pouring opening; the cartridge body side wall also has an operation opening, the operation opening is communicated with the nanofiltration cavity, and the inner wall of the nanofiltration cavity is cleaned through the operation opening; the side cover is detachably arranged on the cartridge body and is used for opening or sealing the operation opening; the locking block is arranged outside the cartridge body and is used for fixing the side cover on the cartridge body.

[0016] Further, the nanofiltration concentrated liquid backfilling device further comprises a waste liquid pool arranged at the bottom of the cartridge body; the bottom of the cartridge body has a water permeable groove communicated with the bottom of the nanofiltration cavity and the waste liquid pool, respectively, and used for guiding the waste liquid at the bottom of the nanofiltration cavity into the waste liquid pool, and the waste liquid pool is used for collecting waste liquid; wherein the water permeable groove extends along the circumference of the cartridge body, and the size of the water permeable groove is smaller than the minimum size of the garbage, so as to prevent the garbage in the nanofiltration cavity from entering the waste liquid pool.

[0017] By applying the technical scheme of the present application, the present application provides a nanofiltration concentrated liquid backfilling device, comprising: a compression assembly, a rotary driving assembly and a nanofiltration assembly; the compression assembly comprises a compression cartridge, a plurality of hole retaining rods, a bottom plate structure and an opening and closing structure, the compression cartridge has a compression cavity inside, the upper part and the lower part of the compression cartridge have a garbage inlet and a garbage outlet, respectively, and the garbage inlet and the garbage outlet are communicated with the compression cavity, respectively; the hole retaining rods are telescopically arranged on the bottom plate structure and at least part of them are located in the compression cavity; the plurality of hole retaining rods are arranged at intervals; the bottom plate structure is movably arranged on the compression cartridge and is located at the garbage outlet, and is used for opening and closing the garbage outlet; the opening and closing structure is connected with the bottom plate structure and is used for driving the bottom plate structure to move; when the bottom plate structure closes the garbage outlet, the garbage is poured into the compression cavity and is compressed, and the plurality of hole retaining rods are in an elongated state, so that the garbage block formed after compression has a plurality of pores inside; the rotary driving assembly is connected with the compression cartridge; the nanofiltration assembly comprises a nanofiltration cartridge, the nanofiltration cartridge has a nanofiltration cavity inside, and the upper part of the nanofiltration cartridge has a pouring opening communicated with the nanofiltration cavity; wherein the rotary driving assembly is used for driving the compression cartridge to rotate; the compression cartridge has an avoiding state and a pouring state, in the avoiding state, the compression cartridge does not block the pouring opening; in the pouring state, the compression cartridge is located above the pouring opening, the opening and closing structure drives the bottom plate structure to open the garbage outlet, and the plurality of hole retaining rods are in a shortened state, so that the garbage block formed after compression in the compression cavity passes through the garbage outlet, the pouring opening and the nanofiltration cavity in sequence; the nanofiltration concentrated liquid is injected into the nanofiltration cavity, and the nanofiltration concentrated liquid flows from the plurality of pores inside the garbage block, so that the inside of the garbage block is in contact with the nanofiltration concentrated liquid for reaction.

[0018] This invention achieves automatic waste compression and automatic nanofiltration concentrate reinjection by coordinating a compression component, a rotation drive component, and a nanofiltration component. Multiple perforated rods create numerous pores within the compressed waste block, allowing the nanofiltration concentrate to flow through these pores and ensuring effective contact and reaction between the waste block and the nanofiltration concentrate. This invention avoids the influence of different waste block shapes, depths, and sizes on the nanofiltration concentrate, ensuring uniform contact between the nanofiltration concentrate and waste in different directions within the waste block and a stable liquid flow rate. It can react with nanofiltration concentrate evenly and quickly, improving the speed and efficiency of nanofiltration concentrate treatment and waste degradation. By setting the compression cylinder to have both avoidance and tilting states, the operation of the waste compressor nanofiltration concentrate recirculation does not interfere with each other. The nanofiltration concentrate recirculation device proposed in this invention can reuse waste resources. It not only intercepts organic pollutants in nanofiltration concentrate through physical and chemical reactions with waste, but also promotes the degradation of waste through the recycling of nanofiltration concentrate, which has dual advantages. This invention has a simple structure and low cost, is easy to assemble and maintain, is environmentally friendly and has low pollution, and is suitable for large-scale promotion and use. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1 A schematic diagram of the external structure of the nanofiltration concentrate reinjection device provided in an embodiment of the present invention in an avoidance state is shown.

[0021] Figure 2 An exploded view of a portion of the nanofiltration concentrate recharge device provided in an embodiment of the present invention is shown.

[0022] Figure 3 It shows Figure 2 A magnified view of a portion of point A in the middle;

[0023] Figure 4 This diagram shows the internal structure of the nanofiltration concentrate recharge device provided in an embodiment of the present invention from another angle.

[0024] Figure 5 It shows Figure 4 A magnified view of a portion of point B in the middle;

[0025] Figure 6 It shows Figure 4 A magnified view of a portion of point C in the middle;

[0026] Figure 7The application is shown Figure 4 A local enlarged schematic view at D.

[0027] Wherein, the above-mentioned drawings include the following reference signs:

[0028] 10, compression assembly; 11, compression cylinder; 111, compression cavity; 112, garbage inlet; 113, garbage outlet; 114, guide block; 12, hole rod; 13, bottom plate structure; 131, first bottom plate; 132, first rotating arm; 133, second bottom plate; 134, second rotating arm; 135, sealing strip; 14, opening and closing structure; 141, guide frame; 142, switch part; 143, empty slot; 144, positioning block; 145, insertion rod;

[0029] 20, rotating drive assembly; 21, rotating cylinder; 211, spiral groove; 212, first end; 213, second end; 22, limiting piece; 221, limiting protrusion; 23, lifting rod; 24, hydraulic cylinder;

[0030] 30, nanofiltration assembly; 31, nanofiltration cylinder; 311, nanofiltration cavity; 312, pouring opening; 313, cylinder body; 314, side cover; 315, locking block; 316, water permeable groove; 32, drainage funnel;

[0031] 40, control assembly; 41, electromagnet; 42, vertical plate; 43, detection controller; 44, hanging rope; 45, hook; 46, buffer pad; 47, swing arm;

[0032] 50, waste liquid pool. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] As Figure 1 to Figure 7As shown, the embodiment of the application provides a nanofiltration concentrate backfilling device, comprising: a compression assembly 10, a rotating drive assembly 20 and a nanofiltration assembly 30; the compression assembly 10 comprises a compression cylinder 11, a plurality of hole rods 12, a bottom plate structure 13 and an opening and closing structure 14, the compression cylinder 11 has a compression cavity 111 inside, the upper and lower parts of the compression cylinder 11 have a garbage inlet 112 and a garbage outlet 113 respectively, and the garbage inlet 112 and the garbage outlet 113 are communicated with the compression cavity 111 respectively; the hole rods 12 are telescopically arranged on the bottom plate structure 13, and at least part of them are located in the compression cavity 111; the hole rods 12 are arranged at intervals; the bottom plate structure 13 is movably arranged on the compression cylinder 11 and located at the garbage outlet 113, and is used for opening and closing the garbage outlet 113; the opening and closing structure 14 is connected with the bottom plate structure 13 and is used for driving the bottom plate structure 13 to move; when the bottom plate structure 13 closes the garbage outlet 113, garbage is poured into the compression cavity 111 and compressed, and the hole rods 12 are in an elongated state, so that the garbage block formed after compression has a plurality of pores inside; the rotating drive assembly 20 is connected with the compression cylinder 11; the nanofiltration assembly 30 comprises a nanofiltration cylinder 31, the nanofiltration cylinder 31 has a nanofiltration cavity 311 inside, and the upper part of the nanofiltration cylinder 31 has a pouring port 312, which is communicated with the nanofiltration cavity 311; wherein, the rotating drive assembly 20 is used for driving the compression cylinder 11 to rotate; the compression cylinder 11 has an avoiding state and a pouring state, in the avoiding state, the compression cylinder 11 does not block the pouring port 312; in the pouring state, the compression cylinder 11 is located above the pouring port 312, the opening and closing structure 14 drives the bottom plate structure 13 to open the garbage outlet 113, and the hole rods 12 are in a shortened state, so that the garbage block formed after compression in the compression cavity 111 passes through the garbage outlet 113, the pouring port 312 and enters the nanofiltration cavity 311 in sequence; nanofiltration concentrate is injected into the nanofiltration cavity 311, and the nanofiltration concentrate flows from the plurality of pores inside the garbage block, so that the inside of the garbage block is in contact with the nanofiltration concentrate and reacts.

[0035] By coordinating the compression assembly 10, the rotation drive assembly 20, and the nanofiltration assembly 30, automatic waste compression and automatic nanofiltration concentrate recirculation are achieved. Multiple perforated rods 12 create multiple pores within the compressed waste block, allowing the nanofiltration concentrate to flow through these pores and ensuring effective contact and reaction between the waste block and the nanofiltration concentrate. This invention avoids the influence of different waste block shapes, depths, and sizes on the nanofiltration concentrate, ensuring uniform contact between the nanofiltration concentrate and waste in different directions within the waste block and a stable liquid flow rate. Waste can react with nanofiltration concentrate evenly and quickly, improving the speed and efficiency of nanofiltration concentrate treatment and waste degradation. By setting the compression cylinder 11 to have both a clearance state and a tilting state, the operation of the waste compressor and nanofiltration concentrate recirculation does not interfere with each other. The nanofiltration concentrate recirculation device proposed in this invention can reuse waste resources. It not only intercepts organic pollutants in nanofiltration concentrate through physical and chemical reactions with waste, but also promotes the degradation of waste through the recycling of nanofiltration concentrate, which has dual advantages. This invention has a simple structure and low cost, is easy to assemble and maintain, is environmentally friendly and has low pollution, and is suitable for large-scale promotion and use.

[0036] Optionally, in another embodiment of the present invention not shown, the present invention further includes a perforated plate that cooperates with the perforated rod 12 during the garbage compression process. When the garbage block is compressed, the driving element directly applies pressure to the perforated plate to compress the garbage between the perforated plate and the first bottom plate 131 and the second bottom plate 133, and to prevent the perforated rod 12 from bending and being damaged due to force during garbage compression.

[0037] like Figure 2 As shown, the base plate structure 13 includes: a first base plate 131, a first rotating arm 132, a second base plate 133, and a second rotating arm 134. Multiple perforated rods 12 are telescopically and spaced on the first base plate 131 and the second base plate 133, respectively. The first rotating arm 132 and the second rotating arm 134 are rotatably disposed on both sides of the compression cylinder 11. The first base plate 131 is disposed at one end of the first rotating arm 132, and the second base plate 133 is disposed at one end of the second rotating arm 134. An opening and closing structure 14 is connected to the other ends of the first rotating arm 132 and the second rotating arm 134, respectively. The opening and closing structure 14 simultaneously drives the other ends of the first rotating arm 132 and the second rotating arm 134 to move, causing the first base plate 131 and the second base plate 133 to rotate simultaneously, thereby opening and closing the waste outlet 113. The rotation directions of the first base plate 131 and the second base plate 133 are opposite.

[0038] By setting the first bottom plate 131 and the second bottom plate 133, the garbage outlet 113 can be effectively closed when the garbage is compressed, avoiding the scattering of untreated garbage; at the same time, when the garbage block needs to be released, the first bottom plate 131 and the second bottom plate 133 can be reversely rotated to quickly open the garbage outlet 113, so that the garbage block smoothly enters the nanofiltration cavity 311; not only improves the efficiency of garbage disposal, but also ensures that the garbage block can keep its internal pore structure intact, which is beneficial to the penetration of the nanofiltration concentrated liquid.

[0039] As shown in Figure 2 and Figure 6 , the opening and closing structure 14 includes a guide frame 141 and a switch part 142, the outer periphery of the compression cylinder 11 has a guide block 114 extending in the vertical direction; the guide frame 141 is slidably sleeved on the guide block 114 and is limited in position with the guide block 114; the guide frame 141 has a hollow slot 143 inside, which is respectively slidably limited in position with the other end of the first rotating arm 132 and the other end of the second rotating arm 134; the switch part 142 is arranged on the outer periphery of the compression cylinder 11 and is used to lock the guide frame 141; wherein when the switch part 142 locks the guide frame 141, the guide frame 141 is fixedly arranged, and the first bottom plate 131 and the second bottom plate 133 simultaneously close the garbage outlet 113; when the switch part 142 releases the guide frame 141, the guide frame 141 moves downward along the guide block 114 under the action of gravity, and the other end of the first rotating arm 132 and the other end of the second rotating arm 134 respectively slide with respect to the hollow slot 143 and simultaneously move downward, driving the first bottom plate 131 and the second bottom plate 133 to reversely rotate at the same time to open the garbage outlet 113.

[0040] By setting the guide frame 141 and the switch part 142, automatic control of the bottom plate structure 13 can be realized, the guide frame 141 fixes the bottom plate structure 13 when the compression cylinder 11 is in the garbage compression state, and automatically slides downward to release the bottom plate structure 13 under the control of the switch part 142 when the garbage block needs to fall; reduces manual operation, improves the degree of automation of the device, and also ensures the orderly falling of the garbage block, preventing garbage jamming and reducing the processing efficiency.

[0041] As shown in Figure 4 and Figure 6As shown, the switch part 142 includes a positioning block 144 and an insertion rod 145, the insertion rod 145 is made of magnetic material, the positioning block 144 is fixedly arranged on the outer periphery of the compression cylinder 11, and the insertion rod 145 is elastically arranged on the positioning block 144 through a spring; the guide frame 141 has a positioning hole, the insertion rod 145 extends into or out of the positioning hole to lock or release the guide frame 141; the nanofiltration concentrated liquid backfilling device further includes a control assembly 40, the control assembly 40 is arranged on the nanofiltration cylinder 31 and is arranged correspondingly with the compression assembly 10; the control assembly 40 has an electromagnet 41, in the pouring state, the compression cylinder 11 is located above the pouring port 312, the electromagnet 41 of the control assembly 40 controls the insertion rod 145 to extend out of the positioning hole through magnetic force to release the guide frame 141, the guide frame 141 moves downward along the guide block 114 under the action of gravity, drives the first bottom plate 131 and the second bottom plate 133 to rotate reversely at the same time, and opens the garbage outlet 113; in the avoiding state, the compression cylinder 11 does not block the pouring port 312, the magnetic force of the electromagnet 41 does not affect the insertion rod 145, the spring drives the insertion rod 145 to extend into the positioning hole to lock the guide frame 141, and the first bottom plate 131 and the second bottom plate 133 simultaneously close the garbage outlet 113.

[0042] By arranging the electromagnet 41 and the spring-driven insertion rod 145, precise coordination between the compression assembly 10 and the nanofiltration assembly 30 is realized; when the compression cylinder 11 is in the pouring state, the electromagnet 41 controls the insertion rod 145 to release the guide frame 141 through magnetic force, so that the garbage block falls smoothly into the nanofiltration cylinder 31; in the avoiding state, the electromagnet 41 does not affect the insertion rod 145, and the spring keeps the guide frame 141 in a fixed state, ensuring that the garbage block will not be released in advance before pouring, improving the coherence and stability of the overall processing process, and reducing energy consumption.

[0043] As Figure 4 and Figure 5As shown, the control assembly 40 comprises a vertical plate 42, a detection controller 43, a hanging rope 44, a hook 45, a buffer pad 46, a torsion spring and a swing arm 47; the vertical plate 42 is fixedly arranged on the outer wall of the nanofiltration cartridge 31 and is correspondingly arranged with the compression assembly 10; the detection controller 43 is arranged on the vertical plate 42 and faces the compression cylinder 11; the buffer pad 46 is arranged on the vertical plate 42 and faces the swing arm 47; one end of the hanging rope 44 is connected with the detection controller 43 and the other end is connected with the hook 45; the hook 45 is slidably arranged on the vertical plate 42; one end of the swing arm 47 is rotatably arranged on the vertical plate 42 and cooperates with the torsion spring; the hook 45 cooperates with the rotating end of the swing arm 47; the electromagnet 41 is arranged at the other end of the swing arm 47; wherein when the detection controller 43 detects that the compression cylinder 11 is in the state of being tilted, the detection controller 43 controls the movement of the hanging rope 44 so that the hook 45 is disconnected with the swing arm 47; the swing arm 47 is driven to rotate to abut against the buffer pad 46 under the driving of the torsion spring; the buffer pad 46 is used for buffering the swing arm 47; the other end of the swing arm 47 drives the electromagnet 41 to approach the insertion rod 145; the electromagnet 41 controls the insertion rod 145 to extend out of the positioning hole through the magnetic force.

[0044] The detection controller 43 is arranged to detect the position state of the compression cylinder 11 and control the connection of the hook 45 and the swing arm 47, so as to trigger the electromagnet 41 to act; this design not only realizes automatic control, but also slows down the movement of the swing arm 47 through the cooperation of the buffer pad 46 and the torsion spring, thereby protecting the stability and durability of the device.

[0045] Alternatively, in another embodiment of the application which is not shown, the hanging rope 44 can also be replaced by a telescopic rod to complete the contraction of the hook 45 and prevent the problem that the swing arm 47 cannot be released in time due to the excessive elastic force of the coil spring at one end of the swing arm.

[0046] As shown in Figure 2 and Figure 4 , the first bottom plate 131 and / or the second bottom plate 133 is provided with a sealing strip 135 made of elastic material; in the avoiding state, the first bottom plate 131 and the second bottom plate 133 jointly close the garbage outlet 113; the sealing strip 135 is arranged between the first bottom plate 131 and the second bottom plate 133 and is used for sealing the gap between the first bottom plate 131 and the second bottom plate 133.

[0047] By arranging the sealing strip 135 on the first bottom plate 131 and / or the second bottom plate 133, the leakage of waste liquid from the gap between the bottom plates during the compression process can be effectively prevented, the collection efficiency of the waste liquid is ensured, and the secondary pollution to the environment and other equipment is avoided.

[0048] As shown in Figure 3As shown, the rotating drive assembly 20 comprises a rotating drum 21, a limiting piece 22, a lifting rod 23 and a hydraulic cylinder 24; the hydraulic cylinder 24 is drivingly connected with one end of the lifting rod 23 for driving the lifting rod 23 to lift and lower, the other end of the lifting rod 23 is connected with one end of the rotating drum 21, and the other end of the rotating drum 21 is fixedly connected with the compression cylinder 11; the rotating drum 21 has a spiral groove 211 extending along the circumferential direction of the rotating drum 21; the limiting piece 22 is fixedly arranged on the compression cylinder 11, and the limiting piece 22 has a limiting protrusion 221 which is in sliding limiting cooperation with the inner wall of the spiral groove 211; wherein the rotating drum 21 is rotatable relative to the lifting rod 23, the lifting rod 23 drives the rotating drum 21 to lift and lower, and the rotating drum 21 is driven to rotate relative to the lifting rod 23 by the relative sliding of the limiting protrusion 221 and the spiral groove 211, so as to drive the compression cylinder 11 to rotate; one end of the spiral groove 211 located at the upper side is a first end 212, and one end of the spiral groove 211 located at the lower side is a second end 213; when the limiting protrusion 221 is located at the first end 212, the compression cylinder 11 is in a dumping state; when the limiting protrusion 221 is located at the second end 213, the compression cylinder 11 is in a avoiding state.

[0049] By setting the rotating drum 21 and the hydraulic cylinder 24, the compression cylinder 11 can be stably and controllably rotated; by the cooperation of the limiting protrusion 221 and the spiral groove 211, the compression cylinder 11 can be accurately switched between the dumping state and the avoiding state, ensuring the orderly processing of the garbage block and the smooth injection of the nanofiltration concentrated liquid, and improving the processing efficiency.

[0050] As shown in Figure 2 , the nanofiltration assembly 30 further comprises a drainage funnel 32 which is detachably arranged on the nanofiltration cylinder 31; the drainage funnel 32 has a drainage cavity inside, and two ends of the drainage funnel 32 are respectively a first port and a second port which are in communication with the drainage cavity, and the second port is in communication with the pouring port 312; wherein the diameter of the first port is larger than that of the second port, so as to guide the nanofiltration concentrated liquid into the nanofiltration cavity 311.

[0051] By setting the drainage funnel 32, not only the injection of the nanofiltration concentrated liquid is facilitated, and the splashing of liquid drops is avoided, but also it is ensured that the liquid can uniformly cover on the garbage block, improving the uniformity and efficiency of the processing; at the same time, the detachable design of the drainage funnel 32 facilitates the maintenance and cleaning of the device.

[0052] As shown in Figure 1 and Figure 2As shown, the nanofiltration cartridge 31 includes a cartridge body 313, a side cover 314 and a locking block 315, the cartridge body 313 has a nanofiltration cavity 311 inside, and the upper part of the cartridge body 313 has a pouring opening 312; the cartridge body 313 also has an operation opening on the side wall, which communicates with the nanofiltration cavity 311, and the inner wall of the nanofiltration cavity 311 is cleaned through the operation opening; the side cover 314 is detachably arranged on the cartridge body 313, and is used to open or seal the operation opening; the locking block 315 is arranged outside the cartridge body 313, and is used to fix the side cover 314 on the cartridge body 313.

[0053] By arranging the cartridge body 313, the side cover 314 and the locking block 315, the cleaning of the inside of the device and the removal and replacement of the garbage block are facilitated, and the cleanliness and maintainability of the device are improved; at the same time, the detachable design of the side cover 314 reduces the complexity of the operation, and improves the use convenience of the device.

[0054] As shown in Figure 2 , Figure 4 and Figure 7 , the nanofiltration concentrate backfilling device also includes a waste liquid pool 50, which is arranged at the bottom of the cartridge body 313; the bottom of the cartridge body 313 has a water permeable groove 316, which respectively communicates with the bottom of the nanofiltration cavity 311 and the waste liquid pool 50, and is used to guide the waste liquid at the bottom of the nanofiltration cavity 311 into the waste liquid pool 50, and the waste liquid pool 50 is used to collect the waste liquid; wherein the water permeable groove 316 extends along the circumference of the cartridge body 313, and the size of the water permeable groove 316 is smaller than the minimum size of the garbage, so as to prevent the garbage in the nanofiltration cavity 311 from entering the waste liquid pool 50.

[0055] By arranging the waste liquid pool 50 to collect the treated waste liquid, the direct discharge of the waste liquid to the environment is avoided; the design of the water permeable groove 316 ensures that the waste liquid can flow smoothly from the bottom of the nanofiltration cavity 311 into the waste liquid pool 50, while preventing the garbage from being removed, ensuring that the garbage treatment and waste liquid recovery are carried out synchronously, improving the utilization rate of resources and reducing the burden on the environment.

[0056] Now the working process and principles of one specific embodiment of the present application are described in detail as follows:

[0057] The present application sets the compression assembly 10 to compress the garbage, and at the same time, the compression of the garbage block is carried out. The hole is reserved, and after the compression is completed, the garbage block is aligned with the cylinder 313 through the control assembly 40, and then it falls, so as to ensure the longitudinal passing ability of the liquid in the garbage block; when using the compression assembly 10, the garbage is poured into the compression cylinder 11, and the hole rod 12 is reserved so that the garbage block is compressed while a large number of longitudinal through holes are reserved. The driving assembly 20 is rotated and works, and drives the compression cylinder 11 to rotate to the top of the cylinder 313. At this time, the plug rod 145 is retracted into the positioning block 144 under the action of the control assembly 40, and the telescopic hole rod 12 is retracted from the garbage block after compression. At this time, the garbage block exerts force on the first bottom plate 131 and the second bottom plate 133 under the action of gravity, so that the first bottom plate 131 and the second bottom plate 133 have a tendency to rotate along the first rotating arm 132 and the second rotating arm 134. After the plug rod 145 is retracted into the positioning block 144, the plug rod 145 releases the vertical movement restriction of the guide frame 141. At this time, the guide frame 141 will vertically slide along the positioning block 144 under the action of the first rotating arm 132, the second rotating arm 134 and gravity, until the first bottom plate 131 and the second bottom plate 133 are completely opened. At this time, the garbage block falls into the cylinder 313 for stacking. Repeat the above operation until the number of garbage blocks in the cylinder 313 meets the backfilling requirements. Finally, the coal chemical nanofiltration concentrated liquid is poured into the cylinder 313.

[0058] Specifically, in one specific embodiment of the present application, the present application can control the falling time of the garbage block by setting the control assembly 40, prevent the change of the stacking state of the garbage block in the cylinder 313 from affecting the through effect of the hole, drive the lifting rod 23 to descend after the compression of the garbage is completed. At this time, the rotating drum 21 will be synchronized to move downward, the limiting protrusion 221 will slide along the spiral groove 211 to the first end 212 of the spiral groove 211, and the compression cylinder 11 will rotate 180 degrees. The inside of the vertical plate 42 is provided with a detection controller 43. When the compression cylinder 11 rotates 180 degrees, the detection controller 43 detects the posture of the compression cylinder 11. When the compression cylinder 11 is aligned with the cylinder 313, the lifting rope 44 is released, the hook 45 moves downward under the action of gravity, and the bottom end of the swing arm 47 is separated from the clamping. At this time, the swing arm 47 will rotate under the action of the elastic force of the coil spring until the swing arm 47 is attached to the buffer pad 46 of the vertical plate 42. Then, the electromagnet 41 inside the swing arm 47 repels the plug rod 145, so that the plug rod 145 is retracted into the positioning block 144, and the falling of the garbage block is completed.

[0059] Specifically, the water-permeable groove 316 and the drainage funnel 32 provided in the present application can guide the nanofiltration concentrated liquid to prevent the nanofiltration concentrated liquid from flowing to the outside of the device or accumulating in the cylinder 313 to cause additional pollution, and a flow guide slope is arranged outside the cylinder 313, the nanofiltration concentrated liquid can flow into the water-permeable groove 316 arranged on the inside of the cylinder 313, and then flow onto the flow guide slope arranged on the outside, and finally flow into the waste liquid pool 50 under the guidance of the flow guide slope.

[0060] To sum up, the present application provides a nanofiltration concentrated liquid backfill device, which realizes automatic compression of garbage and automatic backfill of nanofiltration concentrated liquid by cooperation of the compression assembly 10, the rotary driving assembly 20 and the nanofiltration assembly 30; the plurality of hole rods 12 are arranged to make the garbage block formed after compression have a plurality of pores inside, so that the nanofiltration concentrated liquid can flow from the plurality of pores inside the garbage block, and the effect of contact reaction between the nanofiltration concentrated liquid and the garbage inside the garbage block is ensured; the present application avoids the influence of the shape, depth and size of different garbage blocks on the nanofiltration concentrated liquid, makes the nanofiltration concentrated liquid contact the garbage in different directions inside the garbage block uniformly and the liquid flow rate of the nanofiltration concentrated liquid entering the garbage block stable, and makes the garbage inside the garbage block contact and react with the nanofiltration concentrated liquid uniformly and quickly, thereby improving the speed and efficiency of nanofiltration concentrated liquid treatment and garbage degradation; the compression cylinder 11 has the avoiding state and the dumping state, so that the work of the garbage compressor and the nanofiltration concentrated liquid backfill do not affect each other; the nanofiltration concentrated liquid backfill device provided by the present application can recycle waste resources, intercept organic pollutants in the nanofiltration concentrated liquid through physical and chemical action with garbage, promote degradation of garbage waste by recycling of the nanofiltration concentrated liquid, reuse useful substances in the concentrated liquid, improve resource utilization rate, and has double advantages; the present application has simple structure and low cost, is convenient to assemble and maintain, is friendly to the environment and has little pollution, and is suitable for large-scale popularization and use.

[0061] It is to be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the example embodiments according to the present application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise, and it should also be understood that the terms "comprise" and / or "include" as used in the specification mean the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0062] The foregoing is considered as illustrative only of the principles of the application. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the application to the exact construction and practice described. Accordingly, all such variations are intended to be included within the scope of the present application as defined in the following claims, along with full equivalents thereof.

[0063] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "horizontal", "top", "bottom", and the like are generally based on the orientation or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of protection of the present application. The orientation terms "inner", "outer" refer to the inner and outer relative to the contour of the components themselves.

[0064] For the convenience of description, spatial relative terms such as "above", "upper", "top", "up", and the like can be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawings is inverted, the device described as "above" or "on" the other device or structure will be positioned "below" or "under" the other device or structure. Thus, the exemplary term "above" can include both the "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations) and the spatial relative descriptions used herein will be interpreted accordingly.

[0065] In addition, it should be noted that the use of the terms "first", "second", and the like do not have a special meaning, and therefore should not be construed as limiting the scope of protection of the present application, unless otherwise stated.

[0066] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A device for nanofiltration concentrate backpumping, characterized in that, The utility model relates to a garbage compression and nanofiltration device, including: Compression assembly (10), rotary drive assembly (20) and nanofiltration assembly (30), the compression assembly (10) includes compression cylinder (11), a plurality of hole rod (12), bottom plate structure (13) and open and close structure (14), the compression cylinder (11) inside has compression chamber (111), the upper portion and the lower portion of compression cylinder (11) have garbage inlet (112) and garbage outlet (113) respectively, and garbage inlet (112) and garbage outlet (113) communicate with compression chamber (111) respectively, the hole rod (12) is telescopically arranged on bottom plate structure (13), and at least a part is located in compression chamber (111), a plurality of hole rod (12) are arranged at intervals, bottom plate structure (13) is movably arranged on compression cylinder (11), and is located at garbage outlet (113), is used for opening and closing garbage outlet (113), open and close structure (14) is connected with bottom plate structure (13), is used for driving bottom plate structure (13) movement, when bottom plate structure (13) closes garbage outlet (113), dump garbage in compression chamber (111) and carry out compression, a plurality of hole rod (12) are in elongation state, so that the garbage block formed after compression has a plurality of interstices in the interior, rotary drive assembly (20) is connected with compression cylinder (11), nanofiltration assembly (30) includes nanofiltration cylinder (31), and nanofiltration cylinder (31) has nanofiltration chamber (311) in the interior, and the upper portion of nanofiltration cylinder (31) has dumping port (312), and dumping port (312) communicates with nanofiltration chamber (311), wherein, rotary drive assembly (20) is used to drive compression cylinder (11) rotation, compression cylinder (11) has avoidance state and dumping state, in the avoidance state, compression cylinder (11) does not shield dumping port (312), in the dumping state, compression cylinder (11) is located above dumping port (312), open and close structure (14) drives bottom plate structure (13) to open garbage outlet (113), and a plurality of hole rod (12) are in shortening state, so that the garbage block formed after compression in compression chamber (111) passes through garbage outlet (113) in sequence, dumping port (312) enters nanofiltration chamber (311) inside, inject nanofiltration concentrated solution into nanofiltration chamber (311) inside, and the nanofiltration concentrated solution flows from a plurality of interstices in the interior of garbage block, so that the interior of garbage block is contacted with nanofiltration concentrated solution and reacts.

2. The nanofiltration concentrate recharge device of claim 1, wherein, The bottom plate structure (13) comprises a first bottom plate (131), a first rotating arm (132), a second bottom plate (133) and a second rotating arm (134), a plurality of the hole rods (12) are telescopically and spacedly arranged on the first bottom plate (131) and the second bottom plate (133) respectively; the first rotating arm (132) and the second rotating arm (134) are rotatably arranged on two sides of the compression cylinder (11) respectively, the first bottom plate (131) is arranged at one end of the first rotating arm (132), the second bottom plate (133) is arranged at one end of the second rotating arm (134), and the opening and closing structure (14) is connected with the other end of the first rotating arm (132) and the other end of the second rotating arm (134) respectively; wherein the opening and closing structure (14) simultaneously drives the other end of the first rotating arm (132) and the other end of the second rotating arm (134) to move, and drives the first bottom plate (131) and the second bottom plate (133) to rotate simultaneously to open and close the garbage outlet (113); the rotating directions of the first bottom plate (131) and the second bottom plate (133) are opposite.

3. The nanofiltration concentrate recharge device of claim 2, wherein, The opening and closing structure (14) comprises a guide frame (141) and a switch part (142), the compression cylinder (11) has a guide block (114) on the outer periphery, the guide block (114) extends in the vertical direction; the guide frame (141) is slidably sleeved on the guide block (114) and is limited in position with the guide block (114); the guide frame (141) has a hollow slot (143) inside, the hollow slot (143) is slidably and limitedly matched with the other end of the first rotating arm (132) and the other end of the second rotating arm (134) respectively; the switch part (142) is arranged on the outer periphery of the compression cylinder (11) and is used for locking the guide frame (141); wherein when the switch part (142) locks the guide frame (141), the guide frame (141) is fixedly arranged, and the first bottom plate (131) and the second bottom plate (133) simultaneously close the garbage outlet (113); when the switch part (142) releases the guide frame (141), the guide frame (141) moves downward along the guide block (114) under the action of gravity, the other end of the first rotating arm (132) and the other end of the second rotating arm (134) are slidably matched with the hollow slot (143) respectively and move downward simultaneously, and the first bottom plate (131) and the second bottom plate (133) are reversely rotated simultaneously to open the garbage outlet (113).

4. The nanofiltration concentrate recharge device of claim 3, wherein, The switch part (142) includes a positioning block (144) and an insertion rod (145), the insertion rod (145) adopts a magnetic material, the positioning block (144) is fixedly arranged on the outer periphery of the compression cylinder (11), and the insertion rod (145) is elastically arranged on the positioning block (144) through a spring; the guide frame (141) is provided with a positioning hole, the insertion rod (145) is inserted into or out of the positioning hole to lock or release the guide frame (141); the nanofiltration concentrated solution backfilling device further includes a control assembly (40), the control assembly (40) is arranged on the nanofiltration cylinder (31) and is correspondingly arranged with the compression assembly (10); the control assembly (40) is provided with an electromagnet (41), in the pouring state, the compression cylinder (11) is located above the pouring opening (312), the electromagnet (41) of the control assembly (40) controls the insertion rod (145) to extend out of the positioning hole through magnetic force, so as to release the guide frame (141), the guide frame (141) moves downward along the guide block (114) under the action of gravity, drives the first bottom plate (131) and the second bottom plate (133) to rotate reversely at the same time, and opens the garbage outlet (113); in the avoiding state, the compression cylinder (11) does not block the pouring opening (312), the magnetic force of the electromagnet (41) does not affect the insertion rod (145), the spring drives the insertion rod (145) to extend into the positioning hole, so as to lock the guide frame (141), and the first bottom plate (131) and the second bottom plate (133) simultaneously close the garbage outlet (113).

5. The nanofiltration concentrate backpulp device of claim 4, wherein, The control assembly (40) comprises a vertical plate (42), a detection controller (43), a lifting rope (44), a hook (45), a buffer pad (46), a torsional spring and a swing arm (47); the vertical plate (42) is fixedly arranged on the outer wall of the nanofiltration cartridge (31) and is arranged correspondingly with the compression assembly (10); the detection controller (43) is arranged on the vertical plate (42) and faces the compression cylinder (11); the buffer pad (46) is arranged on the vertical plate (42) and faces the swing arm (47); one end of the lifting rope (44) is connected with the detection controller (43), and the other end is connected with the hook (45); the hook (45) is slidably arranged on the vertical plate (42); one end of the swing arm (47) is rotatably arranged on the vertical plate (42) and cooperates with the torsional spring; the hook (45) cooperates with the rotating end of the swing arm (47); the electromagnet (41) is arranged at the other end of the swing arm (47); when the detection controller (43) detects that the compression cylinder (11) is in the pouring state, the detection controller (43) controls the movement of the lifting rope (44) to make the hook (45) and the swing arm (47) loose connection, the swing arm (47) is driven by the torsional spring to rotate to abut against the buffer pad (46), the buffer pad (46) is used for buffering the swing arm (47), the other end of the swing arm (47) drives the electromagnet (41) to approach the insertion rod (145), and the electromagnet (41) controls the insertion rod (145) to extend out of the positioning hole through magnetic force.

6. The nanofiltration concentrate recharge device of claim 2, wherein, The first bottom plate (131) and / or the second bottom plate (133) are provided with a sealing strip (135) made of elastic material; in the avoiding state, the first bottom plate (131) and the second bottom plate (133) jointly close the garbage outlet (113), and the sealing strip (135) is arranged between the first bottom plate (131) and the second bottom plate (133) to seal the gap between the first bottom plate (131) and the second bottom plate (133).

7. The nanofiltration concentrate recharge device of claim 1, wherein, The rotating drive assembly (20) comprises a rotating drum (21), a limiting piece (22), a lifting rod (23) and a hydraulic cylinder (24); the hydraulic cylinder (24) is drivingly connected with one end of the lifting rod (23) for driving the lifting rod (23) to lift and lower, the other end of the lifting rod (23) is connected with one end of the rotating drum (21), and the other end of the rotating drum (21) is fixedly connected with the compression cylinder (11); the rotating drum (21) is provided with a spiral groove (211) extending spirally along the circumference of the rotating drum (21); the limiting piece (22) is fixedly arranged on the compression cylinder (11) and is provided with a limiting protrusion (221) on the limiting piece (22), the limiting protrusion (221) is in sliding limiting cooperation with the inner wall of the spiral groove (211); wherein the rotating drum (21) can rotate relative to the lifting rod (23), the lifting rod (23) drives the rotating drum (21) to lift and lower, and the rotating drum (21) is driven to rotate relative to the lifting rod (23) through the relative sliding of the limiting protrusion (221) and the spiral groove (211) to drive the compression cylinder (11) to rotate; the upper end of the spiral groove (211) is a first end (212), and the lower end is a second end (213), when the limiting protrusion (221) is located at the first end (212), the compression cylinder (11) is in the pouring state; when the limiting protrusion (221) is located at the second end (213), the compression cylinder (11) is in the avoiding state.

8. The nanofiltration concentrate recharge device of claim 1, wherein, The nanofiltration assembly (30) further comprises a drainage funnel (32) which is detachably arranged on the nanofiltration cylinder (31); the drainage funnel (32) has a drainage cavity inside, and two ends of the drainage funnel (32) are respectively a first port and a second port, the first port and the second port are respectively communicated with the drainage cavity, and the second port is communicated with the pouring port (312); wherein the diameter of the first port is larger than that of the second port, so as to guide the nanofiltration concentrated solution into the nanofiltration cavity (311).

9. The nanofiltration concentrate recharge device of claim 1, wherein, The nanofiltration cylinder (31) comprises a cylinder body (313), a side cover (314) and a locking block (315), the cylinder body (313) has the nanofiltration cavity (311) inside, and the upper part of the cylinder body (313) has the pouring port (312); the side wall of the cylinder body (313) is further provided with an operation port communicated with the nanofiltration cavity (311), and the inner wall of the nanofiltration cavity (311) can be cleaned through the operation port; the side cover (314) is detachably arranged on the cylinder body (313) for opening or sealing the operation port; the locking block (315) is arranged outside the cylinder body (313) for fixing the side cover (314) on the cylinder body (313).

10. The nanofiltration concentrate recharge device of claim 9, wherein, The nanofiltration concentrate backfilling device further comprises a waste liquid pool (50) arranged at the bottom of the barrel (313); the bottom of the barrel (313) is provided with a water-permeable groove (316) in communication with the bottom of the nanofiltration cavity (311) and the waste liquid pool (50) respectively, for draining the waste liquid at the bottom of the nanofiltration cavity (311) into the waste liquid pool (50), and the waste liquid pool (50) is used for collecting the waste liquid; wherein the water-permeable groove (316) extends along the circumference of the barrel (313), and the size of the water-permeable groove (316) is smaller than the minimum size of the garbage, so as to prevent the garbage in the nanofiltration cavity (311) from entering the waste liquid pool (50).

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