A high-purity processing agent recovery system

Abstract

The present application belongs to the technical field of liquid purification treatment, and particularly relates to a high-purity treatment agent recovery system, which comprises a treatment tank, a liquid level controller for monitoring the liquid level arranged in the treatment tank, a filter, and a recovery bucket. The filter comprises a tank body, a partition disc detachably and fixedly installed at the center of the filter, a filter disc arranged at the top of the partition disc, and a filter cartridge arranged at the bottom of the partition disc. A plurality of groups of the filter are connected in parallel to form a filter unit, and a plurality of groups of the filter cartridges are arranged in a circumferential array at the bottom of the tank body to form a filter subunit for performing final filtration. The bottom of the tank body is detachably provided with a support seat for installing the filter cartridge. The recovery bucket comprises a bucket body, a liquid inlet pipe arranged at the top surface of the bucket body, and a liquid outlet pipe arranged at the bottom surface of the bucket body. The present application can recover and filter the treatment agent when the treatment agent is not used, improve the cleanliness of the treatment agent, store the treatment agent, ensure that the treatment agent can meet the production requirements, and reduce the production cost.

Description

Technical Field

[0001] This invention belongs to the field of liquid purification and treatment technology, and specifically relates to a high-cleanliness treatment agent recovery system. Background Technology

[0002] Electronic-grade fiberglass cloth, also known as electronic glass fiber cloth, is an essential basic material for the copper clad laminate (CCL) and printed circuit board (PCB) industries. It is a key material for industries such as electronics, information technology, and aerospace, and appears in almost every electronic component, permeating all sectors of the national economy and national defense.

[0003] In the production process of electronic-grade fiberglass cloth, a liquid treatment agent is required, and the fiberglass cloth is immersed in the treatment agent for special treatment. Therefore, the cleanliness of the treatment agent directly determines the important properties of electronic-grade fiberglass cloth, as well as copper clad laminate (CCL) and printed circuit board (PCB), such as electrical insulation performance, mechanical properties, and dimensional stability.

[0004] In the traditional production process of electronic-grade fiberglass cloth, the treated agent is typically placed directly into the treatment tank of the surface treatment equipment after use, awaiting the next use. This method has a significant problem: if the time interval between two surface treatments is long, the treated agent is easily contaminated. Furthermore, after multiple uses, impurities from the surface of the electronic-grade fiberglass cloth may fall into the treated agent, potentially causing it to fail to meet production requirements. If the treated agent fails to meet requirements, it must be discharged into wastewater treatment equipment, increasing production costs, wasting resources, and adding to wastewater treatment workload. To fully utilize resources, save energy, and ensure the cleanliness of the treated agent, this recycling system was designed. Summary of the Invention

[0005] The purpose of this invention is to provide a high-cleanliness treatment agent recovery system that can recover and filter the treatment agent when it is not in use, thereby improving its cleanliness. After that, it is stored and transported back to the treatment tank when it is used again, which reduces the possibility of contamination of the treatment agent and also cleans up the impurities mixed inside the treatment agent, ensuring that the treatment agent can meet production requirements and reducing production costs.

[0006] The specific technical solution adopted by this invention is as follows:

[0007] A high-cleanliness treatment agent recovery system, comprising:

[0008] The processing tank is equipped with a level controller for monitoring the liquid level.

[0009] A filter includes a tank, a partition plate detachably and fixedly installed at the center of the filter, a filter disc disposed on top of the partition plate, and a filter cartridge disposed at the bottom of the partition plate;

[0010] The filters are connected in parallel to form a filtration unit for diverting and filtering the treatment agent. The filter cartridges are arranged in a circumferential array at the bottom of the tank to form a filtration subunit for final filtration. The bottom of the tank is detachably equipped with a support for mounting the filter cartridges.

[0011] The recycling bin includes a bin body, an inlet pipe on the top surface of the bin body and an outlet pipe on the bottom surface, and the bin body is also provided with a cleaning assembly for cleaning its inner wall.

[0012] The system includes a recovery pump for recovering the treatment agent between the treatment tank and the filtration unit, a supply pump for supplying the treatment agent between the treatment tank and the recovery tank, and pipes and control valves for liquid transfer and control between the components.

[0013] During the treatment agent recovery process, the treatment agent is delivered to the filtration unit via a recovery pump, and after being filtered and cleaned, it is transferred to the recovery bin for collection and storage.

[0014] When the treatment agent is applied, it is supplied from the recycling tank to the treatment tank by a supply pump to treat the electronic-grade fiberglass cloth. After use, the above recycling operation is performed again to form a recycling system cycle.

[0015] The top of the tank is provided with a vertical inlet and a horizontal inlet for adding the treatment agent. The middle of the tank is provided with an outlet for discharging the filtered treatment agent. The bottom of the tank is threaded with a detachable base for sealing. The tank is also provided with a pressure monitor and a temperature monitor for pressure and temperature monitoring.

[0016] The separator plate has evenly spaced fixing holes for fixing the filter cartridge, and a vertical support is fixedly installed at the center of the top surface of the tank, with the top of the vertical support being hemispherical.

[0017] The filter disc is composed of a matrix of multiple serrated filter plates, and the edge of the filter disc is provided with a spiral groove array.

[0018] The filter discs are provided in at least two sets and are rotatably mounted on the vertical support. The spiral grooves on the two adjacent sets of filter discs have opposite spiral directions.

[0019] The filter cartridge includes a sealed housing and a permeation housing that are fixedly installed together, a filter element embedded inside the sealed housing and the permeation housing, and a spiral blade embedded in the center of the filter element.

[0020] The inner wall of the filter element is provided with an array of internal threaded grooves, which are opposite to the spiral direction of the spiral blades. Rotary support rods are fixedly welded to both ends of the spiral blades, and the rotating support rods are rotatably mounted on the support base.

[0021] The barrel body consists of a three-layer structure consisting of an outer explosion-proof layer, a central heat insulation layer, and an inner liner. A manhole is provided on the top surface of the barrel body, and a sealing cover plate for sealing is installed to match the manhole. Support legs for support are fixedly welded to the bottom surface of the barrel body. The bottom wall of the inner liner is inclined and tilted towards the liquid outlet.

[0022] The cleaning assembly includes a central support shaft rotatably mounted on the axis of the barrel and an L-shaped support rod fixedly mounted on one side of the central support shaft. The side and bottom surfaces of the L-shaped support rod are fixedly welded to a support frame. A rubber scraper is adjustablely mounted on the support frame. A servo motor is fixedly mounted on the top surface of the barrel, and its power output end is connected to the central support shaft via a reducer.

[0023] A horizontal support rod is fixedly installed between the central support shaft and the L-shaped support rod for reinforcement connection. The horizontal support rod and the L-shaped support rod are combined to form a ladder for personnel to enter and exit the barrel.

[0024] The technical effects achieved by this invention are as follows:

[0025] This invention, by combining a filter and a recycling tank, allows for the filtration and recycling of the treatment agent when it is not in use, improving its cleanliness. The agent is then stored in the recycling tank and transported back to the treatment tank when needed. This reduces the possibility of contamination and removes impurities mixed within the treatment agent, ensuring it meets production requirements and reducing production costs. Furthermore, the system is simple to operate, has a reasonable structure, and a high degree of automation. In particular, the precise filtration and recycling of the liquid treatment agent effectively guarantees the quality of the electronic-grade fiberglass cloth.

[0026] This invention, by setting up a filter disc, allows the liquid to undergo initial filtration by utilizing the spiral characteristics of the spiral grooves. The thrust generated by the fluid causes the filter disc to rotate around the vertical support, thereby improving the contact efficiency between the filter disc and the fluid and making the filtration of the treatment agent more thorough. At the same time, the spiral grooves in the two sets of filter discs are in opposite directions, which can generate a reverse force on the fluid at the bottom filter disc, thereby slowing down the fluid and increasing the contact time between the fluid and the filter disc, further improving the filtration effect.

[0027] This invention, by setting up a filter cartridge, allows fluid to enter and form a spiral fluid that continuously contacts the inner wall of the filter element under the guidance of the spiral structure of the spiral blades. By creating internal thread grooves with opposite spiral directions on the inner wall of the filter element, convection is formed with the spiral fluid, increasing the contact area and slowing down the flow. Under the combined effect of these two factors, the filtration effect can be greatly improved compared to vertically falling fluid. At the same time, it allows the fluid to contact and filter the entire filter element, rather than concentrating in one place, thereby reducing the probability of clogging, reducing the frequency of filter element replacement, and thus reducing costs.

[0028] This invention, by setting up a cleaning component, can periodically and automatically clean the inner wall of the tank, ensuring the cleanliness of the tank's interior and thus improving the conditions for the recovery and storage of the treatment agent. At the same time, it avoids secondary pollution of the treatment agent. In addition, the combination of horizontal support rods and L-shaped support rods forms a ladder for personnel to enter and exit the manhole, allowing workers to inspect the inside of the tank without the need for a separate ladder. The structural design is more reasonable and simplified. Attached Figure Description

[0029] Figure 1 This is a system block diagram of an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of the filtering unit in an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the filter according to an embodiment of the present invention;

[0032] Figure 4 This is the present invention. Figure 3 The interior view;

[0033] Figure 5 This is a schematic diagram of the connection structure of the filter disc in an embodiment of the present invention;

[0034] Figure 6 This is a top sectional view of the filter disc in an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the filter subunit in an embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the filter cartridge structure according to an embodiment of the present invention;

[0037] Figure 9 This is the present invention. Figure 8 Exploded view;

[0038] Figure 10 This is the present invention. Figure 8 Top sectional view;

[0039] Figure 11 This is a schematic diagram of the filter element according to an embodiment of the present invention;

[0040] Figure 12 This is a schematic diagram of the structure of the recycling bin according to an embodiment of the present invention;

[0041] Figure 13 This is a side view of the recycling bin according to an embodiment of the present invention;

[0042] Figure 14 This is an internal view of the recycling bin according to an embodiment of the present invention;

[0043] Figure 15 This is a schematic diagram of the cleaning component according to an embodiment of the present invention.

[0044] The attached diagram lists the components represented by each number as follows:

[0045] 1. Processing tank;

[0046] 11. Liquid level controller;

[0047] 2. Filter;

[0048] 21. Tank body; 211. Vertical inlet; 212. Horizontal inlet; 213. Outlet; 214. Detachable base; 215. Pressure monitor; 216. Temperature monitor; 217. Detection port;

[0049] 22. Divider plate; 221. Fixing hole; 222. Vertical support;

[0050] 23. Filter disc; 231. Filter plate; 232. Spiral groove;

[0051] 24. Filter cartridge; 241. Sealed housing; 242. Permeation housing; 243. Filter element; 2431. Internal threaded groove; 244. Helical blade; 2441. Rotating support rod;

[0052] 25. Support base;

[0053] 26. Level gauge;

[0054] 3. Recycling bins;

[0055] 31. Barrel body; 311. Outer explosion-proof layer; 312. Central insulation layer; 313. Inner liner;

[0056] 32. Manhole;

[0057] 33. Sealing cover plate;

[0058] 34. Liquid inlet;

[0059] 35. Liquid outlet;

[0060] 36. Supporting leg;

[0061] 37. Cleaning assembly; 371. Central support shaft; 372. L-shaped support rod; 373. Horizontal support rod; 374. Support frame; 375. Rubber scraper; 376. Servo motor; 377. Reducer;

[0062] 4. Recovery pump;

[0063] 5. Pipelines;

[0064] 6. Supply pump;

[0065] 7. Control valves;

[0066] 71. First shut-off valve; 72. Second shut-off valve; 73. Drain valve;

[0067] 8. Wastewater treatment equipment. Detailed Implementation

[0068] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0069] like Figure 1-15 As shown, a high-cleanliness treatment agent recovery system includes a treatment tank 1 for surface treatment of electronic-grade fiberglass cloth, a filter 2 for treatment agent recovery filtration, and a recovery bucket 3 for treatment agent recovery storage.

[0070] Among them, multiple sets of filters 2 are connected in parallel to form a filtration unit, which is used to divert and filter the treatment agent;

[0071] Specific reference Figure 2 In this embodiment, the filter 2 is provided in three sets connected in parallel, and a distribution pipe for diverting the flow is provided between the inlet ports of the three sets of filters 2. At the same time, a return pipe is provided at the outlet port for collecting the treatment agent after filtration. The parallel setting can improve the filtration efficiency, and when one filter 2 is blocked, the other filters 2 can perform the filtration work, avoiding the filtration process from stopping.

[0072] The system includes a recovery pump 4 for recovering the treatment agent between the treatment tank 1 and the filter unit, a supply pump 6 for supplying the treatment agent between the treatment tank 1 and the recovery tank 3, and a wastewater treatment device 8 for discharging the treatment agent that can no longer be recovered. The treatment tank 1 and the recovery tank 3 are respectively connected to the wastewater treatment device 8. The system also includes pipes 5 and control valves 7 for liquid transfer and control between the components, thus forming a complete system loop.

[0073] In this embodiment, the pipeline 5 is welded from DN50 type 3 polypropylene material, and the recovery pump 4 and the supply pump 6 are both high-flow self-priming centrifugal pumps. Utilizing their structural characteristics, the waiting time of operators can be reduced, and they are also highly corrosion resistant.

[0074] Specific reference Figure 1 In order to automatically control the system, a liquid level controller 11 is installed inside the treatment tank 1 to monitor the liquid level. The liquid level data in the tank is collected in real time. When the treatment agent in the tank is lower than the set liquid level value, the controller will automatically send a signal to the corresponding relay, so that the relay of the supply pump 6 will automatically engage and automatically replenish the liquid in the treatment tank 1. When the hydraulic pressure in the tank reaches the required value, the liquid level controller 11 sends a stop signal, so that the relay of the supply pump 6 will automatically disconnect and automatically stop replenishing the liquid in the treatment tank 1.

[0075] See attached document Figure 3-11 The filter 2 includes a tank 21, a partition plate 22 that is detachably and fixedly installed in the center of the filter 2, a filter plate 23 set on the top of the partition plate 22, and a filter cartridge 24 set at the bottom of the partition plate 22.

[0076] Specific reference Figure 3 The top of the tank 21 is provided with a vertical inlet 211 and a horizontal inlet 212 for adding the treatment agent, and the middle is provided with an outlet 213 for discharging the filtered treatment agent. At the same time, the bottom of the tank 21 is threadedly connected with a detachable base 214 for sealing, which facilitates the regular replacement of its internal components and ensures the filtration effect.

[0077] In this embodiment, the three sets of vertical liquid inlets 211 are connected in parallel through a dispersion pipe for liquid inlet, while the horizontal liquid inlets 212 are connected to each other through a diversion pipe, so that when one of the filters 2 is blocked, the fluid can be dispersed into the remaining filters 2 for filtration and purification.

[0078] Furthermore, the tank 21 is also equipped with a pressure monitor 215 and a temperature monitor 216 for pressure and temperature monitoring. In this embodiment, a level gauge 26 for liquid level monitoring is also provided on one side of the tank 21, which facilitates the staff to observe and record the liquid level of the tank 21, and to analyze whether there are any problems inside the tank 21 in combination with the pressure monitor 215 and the temperature monitor 216, so as to facilitate timely maintenance. In addition, a detection port 217 is provided so that samples can be taken to test the treatment agent when needed.

[0079] Specific reference Figure 4-5In order to install the filter disc 23, a vertical support column 222 is fixedly installed at the center of the top surface of the tank 21. The filter disc 23 is rotatably installed on the vertical support column 222. At the same time, the top of the vertical support column 222 is hemispherical, which can reduce fluid resistance. The separator 22 is detachably installed inside the tank 21. When the filter disc 23 is clogged, the detachable base 214 can be opened from the bottom of the tank 21 to remove and replace it in sequence.

[0080] Specific reference Figure 5-6 The filter disc 23 is composed of a matrix of multiple sets of serrated filter sheets 231 (which are polypropylene microporous filter sheets with certain acid resistance, thus avoiding corrosion by the acidity of the treatment agent), and spiral grooves 232 are opened in the circumferential array on the edge.

[0081] In this embodiment, two sets of filter discs 23 are provided. The spiral grooves 232 on the two adjacent sets of filter discs 23 have opposite spiral directions. When the liquid flows through the filter discs 23 for initial filtration, the spiral characteristics of the spiral grooves 232 are used to make the filter discs 23 rotate around the vertical support column 222 by the thrust generated by the fluid, thereby improving the contact efficiency between the filter sheet 231 and the fluid, and thus making the treatment agent more thoroughly filtered. At the same time, the spiral grooves 232 in the two sets of filter discs 23 have opposite directions, which can generate a reverse force on the fluid at the bottom filter disc 23, thereby slowing down the fluid, increasing the contact time between the fluid and the filter sheet 231, and further improving the filtration effect.

[0082] Of course, in other embodiments, at least two sets of filter discs 23 may be provided as needed.

[0083] Specific reference Figure 7 In this embodiment, multiple sets of filter cartridges 24 are arranged in a circumferential array at the bottom of the tank 21 to form a filter subunit for final filtration. Fourteen sets are evenly arranged in this array. At the same time, two sets of support seats 25 for installing filter cartridges 24 are detachably installed at the bottom of the tank 21. They are located at the top and bottom of the filter cartridges 24, respectively. Fixing holes 221 for fixing filter cartridges 24 are also evenly opened on the partition plate 22. When replacing filter cartridges 24, the two sets of support seats 25 can be removed from the inside of the tank 21, and then the filter cartridges 24 can be removed from between the two sets of support seats 25 for replacement, ensuring the filtration effect.

[0084] Specific reference Figure 8-9 The filter cartridge 24 includes a sealed housing 241 and a permeation housing 242 that are fixedly installed together, a filter element 243 (which is a polytetrafluoroethylene microporous filter element) embedded in the sealed housing 241 and the permeation housing 242, and a spiral blade 244 embedded in the center of the filter element 243.

[0085] Specific reference Figure 10-11The inner wall of the filter element 243 has an internally threaded groove 2431 arranged in a circumferential array, with the direction of the groove opposite to that of the spiral blade 244. The spiral blade 244 has a rotating support rod 2441 fixedly welded to both ends, which is rotated and installed between two sets of support seats 25. After the fluid is initially filtered by the filter disc 23 and then blocked and dispersed by the separator disc 22 before entering the filter cartridge 24, the spiral fluid can be guided by the spiral structure of the spiral blade 244 to form a spiral fluid that continuously contacts the inner wall of the filter element 243. The internally threaded groove 2431 with the opposite spiral direction on the inner wall of the filter element 243 forms a convection with the spiral fluid, which increases the contact area and slows down the flow. Under the combined effect of these two factors, the filtration effect can be greatly improved compared to vertically falling fluid. At the same time, the fluid can make contact with the entire filter element 243 for filtration, instead of concentrating in one place, thereby reducing the probability of clogging and the replacement frequency of the filter element 243, thus reducing costs.

[0086] Reference Figure 12-14 The recycling bin 3 includes a bin body 31, an inlet pipe 34 located on the top surface of the bin body 31, and an outlet pipe 35 located on the bottom surface.

[0087] The tank body 31 is composed of a three-layer structure consisting of an outer explosion-proof layer 311, a central heat insulation layer 312, and an inner liner 313, which can improve its corrosion resistance, heat preservation, and explosion-proof performance, making the storage state of the treatment agent more stable. At the same time, a manhole 32 is provided on its top surface to facilitate the operation of personnel entering the tank body 31 for maintenance, cleaning, etc. A sealing cover 33 is installed to match the manhole 32 for sealing. When it is necessary to enter the tank, the cover is opened and the personnel enter through the manhole 32. When it is not necessary to enter, the cover is closed, which effectively isolates external sewage or dust from entering the tank and prevents contamination of the treatment agent stored in the tank.

[0088] Furthermore, in order to improve the stability of the support, the bottom surface of the barrel 31 is fixedly welded with support legs 36 for support. In this embodiment, three sets are provided, which are distributed in a circumferential array at the bottom of the barrel 31. At the same time, the bottom wall of the inner liner 313 is inclined and tilted towards the liquid outlet 35 end, which can facilitate the discharge of liquid.

[0089] Reference Figure 1 In this embodiment, a first shut-off valve 71 is installed on the connecting pipe between the treatment tank 1 and the recovery pump 4, the supply pump 6 is installed on the connecting pipe between the liquid outlet 35 and the treatment tank 1, and a second shut-off valve 72 is installed on the connecting pipe between the liquid outlet 35 and the sewage treatment equipment 8, and a sewage discharge valve 73 is installed on the connecting pipe between the treatment tank 1 and the sewage treatment equipment 8.

[0090] According to the above structure, when the treatment agent needs to be recycled, firstly open the first shut-off valve 71, close the second shut-off valve 72, supply pump 6, and start the recycling pump 4 at the same time. The treatment agent can then be drawn from the treatment tank 1, pass through the filter 2 to filter out impurities and foreign objects in the treatment agent, and the highly clean treatment agent coming out of the filter 2 reaches the recycling tank 3 through the pipeline 5 for storage.

[0091] When the treatment agent in the recycling tank 3 needs to be used, simply turn on the level controller 11 so that it senses that the liquid level in the tank is lower than the set value. The controller will then automatically send a signal to the relay, causing the relay of the supply pump 6 to automatically engage and start the replenishment operation, supplying the high-cleanliness treatment agent in the tank to the treatment tank 1 for use by the production equipment. When the liquid level in the tank reaches the specified value, the level controller 11 sends a stop signal, causing the relay of the supply pump 6 to automatically disconnect and automatically stop replenishing the treatment tank 1.

[0092] Reference Figure 14-15 To automate the cleaning of the inner wall of the barrel 31, a cleaning assembly 37 for cleaning the inner wall is also provided on the barrel 31. The assembly includes a central support shaft 371 rotatably mounted on the axis of the barrel 31 and an L-shaped support rod 372 fixedly mounted on one side of the central support shaft 371. The side and bottom of the L-shaped support rod 372 are fixedly welded to the support frame 374. At the same time, a rubber scraper 375 is adjustablely mounted on the support frame 374. The tilt angle can be adjusted by fixing bolts as needed to fit tightly against the inner wall of the barrel 31. A servo motor 376 is fixedly mounted on the top surface of the barrel 31, and its power output end is connected to the central support shaft 371 through a reducer 377. The servo motor 376 can drive the rubber scraper 375 to scrape and clean the inner wall of the barrel 31 through the central support shaft 371 and the L-shaped support rod 372.

[0093] In this embodiment, two sets of rubber scrapers 375 are arranged side by side on the side of the L-shaped support rod 372 and two sets are arranged side by side on the bottom surface of the L-shaped support rod 372, respectively attached to the side wall and bottom wall of the barrel 31, so as to carry out comprehensive cleaning.

[0094] When the cleaning cycle of the tank 31 is reached, the second shut-off valve 72 is opened and the supply pump 6 is turned off. After cleaning, the sewage in the tank is discharged into the sewage treatment equipment 8 through the outlet pipe 35, which will not cause sewage sludge accumulation.

[0095] Furthermore, a horizontal support rod 373 is horizontally fixed between the central support shaft 371 and the L-shaped support rod 372 for reinforcement connection. At the same time, the horizontal support rod 373 and the L-shaped support rod 372 are combined to form a ladder for personnel to enter and exit the barrel 31. When in use, it is adjusted to the manhole 32 so that workers can inspect the inside of the barrel 31. There is no need to set up a separate ladder, and the structure is more reasonable and simplified.

[0096] The working principle of this invention is as follows: After the electronic-grade fiberglass cloth is treated with the treatment agent, the used treatment agent is transported to the filter unit through the dispersion pipeline by the recovery pump 4, so that it is distributed to each filter 2. When the liquid flows through the filter disc 23, it undergoes initial filtration. At the same time, by utilizing the spiral characteristics of the spiral groove 232, the thrust generated by the fluid can make the filter disc 23 rotate around the vertical support 222, thereby improving the contact efficiency between the filter disc 231 and the fluid, making the treatment agent filtration more thorough. Meanwhile, the spiral grooves 232 in the two sets of filter discs 23 are in opposite directions, which can generate a reverse force on the fluid at the bottom filter disc 23, thereby slowing down the fluid, increasing the contact time between the fluid and the filter disc 231, and further improving the filtration effect.

[0097] Secondly, the fluid enters the filter cartridge 24 through the separator 22 and forms a spiral fluid under the guidance of the spiral structure of the spiral blades 244. The spiral fluid continuously contacts the inner wall of the filter element 243. The internal thread grooves 2431 with opposite spiral directions are opened on the inner wall of the filter element 243, which form a counterflow with the spiral fluid, increasing the contact area and slowing down the flow, which can greatly improve the filtration effect. Then, it permeates out from the sealed shell 241, completing the filtration. The treatment agent passes through the filter disc 23 and the filter cartridge 24 in sequence and is discharged from the outlet 213. It is then collected and transported to the tank 31 through the return pipe for recycling and storage.

[0098] When reused, the treatment agent is pumped out from the inside of the tank 31 by the supply pump 6 and transported to the inside of the treatment tank 1 for reuse to treat the surface of the electronic grade fiberglass cloth. This cycle is repeated to improve the utilization rate of the treatment agent, make full use of resources, save energy and reduce consumption, and at the same time ensure the cleanliness of the treatment agent.

[0099] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A high-cleanliness treatment agent recovery system, characterized in that, include: The processing tank (1) is equipped with a liquid level controller (11) for monitoring the liquid level. The filter (2) includes a tank (21), a partition plate (22) that is detachably and fixedly installed in the center of the filter (2), a filter plate (23) disposed on the top of the partition plate (22), and a filter cartridge (24) disposed on the bottom of the partition plate (22). Among them, multiple sets of filters (2) are connected in parallel to form a filter unit for diverting and filtering the treatment agent. Multiple sets of filter cartridges (24) are arranged in a circumferential array at the bottom of the tank (21) to form a filter sub-unit for final filtration. The bottom of the tank (21) is detachably equipped with a support base (25) for installing the filter cartridges (24). The recycling bin (3) includes a bin body (31), an inlet pipe (34) on the top surface of the bin body (31) and an outlet pipe (35) on the bottom surface. The bin body (31) is also provided with a cleaning component (37) for cleaning its inner wall. Among them, a recovery pump (4) for recovering the treatment agent is provided between the treatment tank (1) and the filter unit, and a supply pump (6) for supplying the treatment agent is provided between the treatment tank (1) and the recovery tank (3). The system is also provided with pipes (5) for liquid transmission and control and control valves (7) between each component. The partition plate (22) is evenly provided with fixing holes (221) for fixing the filter cylinder (24), and a vertical support (222) is fixedly installed at the center of the top surface of the tank (21), with the top of the vertical support (222) being hemispherical. The filter disc (23) is composed of a matrix of multiple sets of serrated filter sheets (231), and the filter disc (23) has spiral grooves (232) arranged in a circular array on the edge. During the treatment agent recovery, the treatment agent is delivered to the filter unit through the recovery pump (4), and after being filtered and cleaned, it is transferred to the recovery tank (3) for collection and storage; When the treatment agent is applied, the treatment agent is supplied from the recycling tank (3) to the treatment tank (1) by the supply pump (6) to treat the electronic grade glass fiber cloth. After use, the above recycling operation is performed to form a recycling system cycle.

2. The high-cleanliness treatment agent recovery system according to claim 1, characterized in that: The top of the tank (21) is provided with a vertical inlet (211) and a horizontal inlet (212) for adding the treatment agent. The middle of the tank (21) is provided with an outlet (213) for discharging the filtered treatment agent. The bottom of the tank (21) is threaded with a detachable base (214) for sealing. The tank (21) is also provided with a pressure monitor (215) and a temperature monitor (216) for pressure and temperature monitoring.

3. The high-cleanliness treatment agent recovery system according to claim 1, characterized in that: At least two sets of filter discs (23) are provided and are rotatably mounted on the vertical support (222). The spiral grooves (232) on the two adjacent sets of filter discs (23) have opposite spiral directions.

4. The high-cleanliness treatment agent recovery system according to claim 1, characterized in that: The filter cartridge (24) includes a sealed housing (241) and a permeation housing (242) that are fixedly installed together, a filter element (243) embedded in the sealed housing (241) and the permeation housing (242), and a spiral blade (244) embedded in the center of the filter element (243).

5. The high-cleanliness treatment agent recovery system according to claim 4, characterized in that: The filter element (243) has an internal threaded groove (2431) arranged in a circumferential array on its inner wall, which is opposite to the spiral direction of the spiral blade (244). The spiral blade (244) has a rotating support rod (2441) fixedly welded to both ends, and the rotating support rod (2441) is rotatably mounted on the support base (25).

6. The high-cleanliness treatment agent recovery system according to claim 1, characterized in that: The barrel (31) is composed of a three-layer structure consisting of an outer explosion-proof layer (311), a central heat insulation layer (312), and an inner liner (313). A manhole (32) is opened on its top surface, and a sealing cover (33) for sealing is installed in accordance with the manhole (32). A support leg (36) for support is fixedly welded to the bottom surface of the barrel (31). The bottom wall of the inner liner (313) is inclined and tilted towards the liquid outlet (35).

7. The high-cleanliness treatment agent recovery system according to claim 1, characterized in that: The cleaning assembly (37) includes a central support shaft (371) rotatably mounted on the axis of the barrel (31) and an L-shaped support rod (372) fixedly mounted on one side of the central support shaft (371). The side and bottom surfaces of the L-shaped support rod (372) are fixedly welded to the support frame (374). A rubber scraper (375) is adjustablely mounted on the support frame (374). A servo motor (376) is fixedly mounted on the top surface of the barrel (31), and its power output end is connected to the central support shaft (371) through a reducer (377).

8. The high-cleanliness treatment agent recovery system according to claim 7, characterized in that: A horizontal support rod (373) for reinforcement is fixedly installed between the central support shaft (371) and the L-shaped support rod (372). The horizontal support rod (373) and the L-shaped support rod (372) are combined to form a ladder for personnel to enter and exit the barrel (31).

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