A multi-stage resin cleaning system

Abstract

The present application relates to the field of resin cleaning equipment, and specifically discloses a multi-stage resin cleaning system, which includes a shell, a water circulation component, an impurity discharge component, a ventilation component, and a feed component, a multi-stage cleaning component, and a discharge component that are sequentially connected and arranged in the shell. The water circulation component, the ventilation component, and the impurity discharge component are all connected to the multi-stage cleaning component. The water circulation component fills the multi-stage cleaning component with water and keeps it flowing to rinse the resin. The multi-stage cleaning component includes a plurality of cleaning tanks with different tank cross-sectional areas. The resin is sequentially cleaned in cleaning tanks with gradually decreasing tank cross-sectional areas to gradually increase the cleaning intensity of the resin. The ventilation component is used to transfer the resin between different cleaning tanks, and at the same time cooperates with the impurity discharge component to discharge the broken resin and impurities separated in the cleaning tank. The present application has the advantages of high cleaning efficiency, good effect, and recyclable water.

Description

Technical Field

[0001] The present application relates to the field of resin cleaning equipment, and in particular to a multi-stage resin cleaning system. Background Art

[0002] Ion exchange resin is an insoluble polymer compound with functional groups (active groups that exchange ions), a network structure, and is usually a spherical particle. Ion exchange resins are widely used in the chemical industry, such as water treatment (pure water / wastewater), food, pharmaceuticals, and chemical process-related adsorption, purification, decolorization, etc., all of which rely on anion resins and cationic resins, or even special chelating resins, to adsorb impurities in the liquid to improve the purity of the liquid for subsequent equipment cleaning, process adjustment, and other processes.

[0003] Due to the variety of resin types and brands on the market, the quality and purity of resins vary. After purchasing resins, most manufacturers need to clean the resins, remove impurities and break the resins before putting them into use. The TOC (total organic carbon) value is used as an indicator of whether the resin meets the use standards. The commonly used cleaning method is to place the resin in a cleaning tank and continuously pass water into the cleaning tank, using the water flow to continuously flush the resin for cleaning until the TOC value of the resin reaches a certain standard.

[0004] In actual use, manufacturers often extend the water flow time or increase the output power of the water pump to ensure the cleaning effect of the resin. However, this method not only has low cleaning efficiency and delays time, but also consumes a lot of water. Summary of the invention

[0005] In order to improve the cleaning efficiency of the resin, the present application provides a multi-stage resin cleaning system with good cleaning effect and high efficiency, which can realize automatic cleaning and can recycle water to save water resources.

[0006] The multi-stage resin cleaning system provided in this application adopts the following technical solution:

[0007] A multi-stage resin cleaning system comprises a water circulation component, an impurity discharge component, a ventilation component, and a feed component, a multi-stage cleaning component and a discharge component which are connected in sequence, wherein the feed component is used to convey the resin to be cleaned to the multi-stage cleaning component, and the discharge component is used to collect the resin after cleaning. The water circulation component, the ventilation component and the impurity discharge component are all connected to the multi-stage cleaning component, the water circulation component is used to supply water to the multi-stage cleaning component, the ventilation component is used to transfer the resin, and cooperate with the impurity discharge component to discharge the broken resin and impurities separated in the multi-stage cleaning component; the multi-stage cleaning component comprises a plurality of cleaning tanks which are connected in sequence, and the cross-sectional area of ​​each cleaning tank gradually decreases along the direction of material flow, and a TOC detection meter is provided on the pipeline of the water circulation component.

[0008] By adopting the above technical scheme, the cross-sectional area of ​​the cleaning tank through which the water flows in sequence is gradually reduced, so that the water flow rate in each cleaning tank is gradually increased. The resin is first roughly washed in the cleaning tank with a lower flow rate but a larger space to remove most of the easily separated broken resin and impurities, and then it is rinsed with greater intensity in the cleaning tank with a higher flow rate to separate a small part of the more difficult to separate broken resin and impurities. Multiple cleaning tanks can form a cleaning effect with increasing intensity, effectively improving the efficiency and quality of cleaning; the combination of cleaning with different intensities effectively shortens the cleaning time, and at the same time can remove stubborn impurities that are difficult to separate by increasing the cleaning time, thereby improving the efficiency and quality of resin cleaning; the TOC test meter can be used to monitor the purity of the resin in real time, thereby judging the cleaning progress of the resin, and the time to complete the cleaning can be estimated based on the value fed back by the TOC test meter.

[0009] Optionally, the multi-stage cleaning component also includes a resin delivery pipe, a screen is provided in each of the cleaning tanks, an impurity baffle is provided in the cleaning tank above the screen, the periphery of the screen and the periphery of the impurity baffle are fixed to the inner wall of the cleaning tank, the screen is used to filter broken resin and impurities, the impurity baffle is used to block broken resin and impurities, the screen and the impurity baffle separate the cleaning tank into a separation chamber at the bottom, an impurity chamber in the middle and a drainage chamber at the top, the resin delivery pipe is connected to the separation chambers of the corresponding cleaning tanks in descending order of the cross-sectional area of ​​the cleaning tank body, the feeding component is connected to the separation chamber of the cleaning tank with the largest cross-sectional area of ​​the tank body, the discharging component is connected to the separation chamber of the cleaning tank with the smallest cross-sectional area of ​​the tank body, the impurity discharge component is connected to the impurity chambers of each cleaning tank, the water circulation component connects each cleaning tank in descending order of the cross-sectional area of ​​the tank body, and the water inlet of each cleaning tank is located in the separation chamber, and the water outlet is located in the drainage chamber.

[0010] By adopting the above technical solution, the broken resin and impurities can be separated separately by using the cooperation of the baffle and the screener, and the broken resin and impurities can be discharged separately by using the impurity discharge component, which effectively avoids the secondary mixing of the broken resin and impurities with the intact resin and improves the cleaning quality.

[0011] Optionally, the feed assembly includes a feed tank, a feed pump and a feed pipe, one end of the feed pipe is connected to the separation chamber of the cleaning tank with the largest tank cross-sectional area, and the other end extends to the bottom of the feed tank, the feed pump is arranged on the feed pipe, and the feed pipe is provided with a feed valve, the discharge assembly includes a discharge pipe, a discharge valve and a collecting tank, one end of the discharge pipe is connected to the collecting tank, and the other end is connected to the separation chamber of the cleaning tank with the smallest tank cross-sectional area, and the discharge valve is arranged on the discharge pipe.

[0012] By adopting the above technical solution and utilizing the cooperation of the feeding component and the discharging component, the automation of resin loading and discharging can be realized, the cleaning process can be optimized, and the cleaning efficiency can be improved.

[0013] Optionally, a partition is provided in the shell, and the partition divides the shell into a cleaning chamber located at the top and a loading chamber located at the bottom. The multi-stage cleaning assembly is arranged in the cleaning chamber, and an inclined roller and a horizontal roller are arranged in the loading chamber, and the inclined roller is used to support the feed tank.

[0014] By adopting the above technical solution, the inclined roller and the horizontal roller are used to facilitate the removal of the tank body from the shell, thereby improving the convenience of use. At the same time, the inclined roller makes the feed tank in an inclined state, which makes it easier to drain the raw materials in the feed tank.

[0015] Optionally, the resin delivery pipe is connected with a plurality of delivery branches corresponding to the number of cleaning tanks, and the plurality of delivery branches are connected to the separation chambers of the corresponding cleaning tanks in order from large to small according to the cross-sectional area of ​​the tank body, and each of the delivery branch pipes is provided with a branch valve, and the resin delivery pipe located between two adjacent branch valves is provided with a main valve.

[0016] By adopting the above technical solution, by opening or closing the corresponding main valve and branch valve, the resin can be transported to different cleaning tanks in conjunction with the ventilation component, thereby cooperating to achieve multi-stage cleaning, with high transportation efficiency and easy use. There is no need to remove the resin from the cleaning tank, thus avoiding secondary contamination.

[0017] Optionally, the impurity discharge assembly includes an impurity tank and an impurity discharge pipe, one end of the impurity discharge pipe is connected to the impurity tank, and the other end is respectively connected to the impurity chambers of each cleaning tank, and the impurity discharge pipe is provided with a discharge valve.

[0018] By adopting the above technical solution, the broken resin and impurities can be uniformly collected into the impurity tank by opening the discharge valve of the corresponding cleaning tank and cooperating with the ventilation component.

[0019] Optionally, the ventilation assembly includes a ventilation pipe, a ventilation valve, an exhaust pipe and an exhaust valve, the ventilation pipe is connected to the drainage cavity of each cleaning tank and is connected to the inert gas source, and the exhaust pipe is connected to the drainage cavity of each cleaning tank and is used to discharge the inert gas introduced into the cleaning tank.

[0020] By adopting the above technical solution, inert gas is introduced into the water body through the ventilation component to apply pressure to the water body, so that the water body can flow to drive the resin to move, thereby realizing the switching of the resin between different cleaning tanks. At the same time, the inert gas can ensure that the pressure inside and outside the system is consistent, and the inert gas can prevent the resin in the system from being contaminated, thereby improving the cleanliness of the system and effectively improving the stability of the device.

[0021] Optionally, the water circulation component includes a water inlet main pipe, a water passing pipe, a water filter, a TOC degradation tank and a purification tank. One end of the water inlet main pipe is connected to a water pump, and the other end is connected to the water passing pipe. The water passing pipe connects the water filter, TOC degradation tank, purification tank and multi-stage cleaning component in sequence to form a circulation passage. The water passing pipe is provided with a water circulation pump for driving the circulation of water. The water filter is used to filter impurities in the water. The TOC degradation tank utilizes ultraviolet rays to irradiate the water to degrade TOC. The purification tank is filled with electronic grade resin and is used to adsorb impurities in the water.

[0022] By adopting the above technical solution, the water body can be purified by using a water filter, a TOC degradation tank and a purification tank, so that the water in the water pipe that has been used to flush the resin can be reused repeatedly to perform a cyclic flushing of the resin, effectively saving water resources.

[0023] Optionally, a monitoring component is also included, which includes a pressure gauge, a TOC detection gauge and a flow meter. The pressure gauge and the flow meter are both arranged in the water pipe, and the TOC detection gauge is located in the water pipe between the multi-stage cleaning component and the water filter.

[0024] By adopting the above technical solution, using a pressure gauge to monitor the water pressure in the water pipe can ensure that the system remains full of water, ensuring the cleaning effect on the resin, while avoiding the internal and external pressure difference that affects the stability of the system operation; and using a flow meter to monitor the water flow in the water pipe makes it easy to control the cleaning intensity and flexibly adjust it in conjunction with the water circulation pump.

[0025] Optionally, the water circulation component also includes a first water inlet branch pipe, which is used to connect the water inlet main pipe and the water pipe. The first water inlet branch pipe is provided with a first one-way valve, and the flow direction of the first one-way valve is from the water inlet main pipe to the water pipe. The water pipe is provided with a second one-way valve at a position close to the connection with the first water inlet branch pipe, and the flow direction of the second one-way valve is from the TOC degradation tank to the multi-stage cleaning component.

[0026] By adopting the above technical scheme, the first one-way valve can be used to effectively prevent the water in the water pipe from flowing back to the water inlet main pipe, thereby avoiding polluting the water source; the second one-way valve can be used to prevent the circulating cleaning water path formed by the water pipe from flowing back, thereby preventing the broken resin and impurities from flowing back from the impurity chamber to the separation chamber and causing secondary contamination of the resin, thereby ensuring the cleaning quality of the resin.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. Use the water circulation component and the multi-stage cleaning component to perform multi-stage cleaning of the resin with gradually increasing intensity. First, perform a low-intensity rough cleaning on the resin with a high impurity content. As the purity of the resin increases, the cleaning intensity is gradually increased to remove a small amount of broken resin and impurities that are difficult to separate. The combination of cleaning with different intensities effectively shortens the cleaning time. At the same time, it can remove stubborn impurities that are difficult to separate by increasing the cleaning time, thereby improving the efficiency and quality of resin cleaning;

[0029] 2. By gradually reducing the cross-sectional area of ​​the cleaning tanks through which the water flows in sequence, the water flow rate in each cleaning tank is gradually increased. The resin is first roughly washed in the cleaning tank with a lower flow rate but a larger space to remove most of the easily separated broken resin and impurities, and then it is rinsed with greater intensity in the cleaning tank with a higher flow rate to separate a small part of the difficult-to-separate broken resin and impurities. Multiple cleaning tanks can form a cleaning effect with increasing intensity, effectively improving the efficiency and quality of cleaning; at the same time, the baffle and the screen can be used to separate the broken resin and impurities separately, and the impurity discharge component can be used to discharge the broken resin and impurities separately, effectively avoiding secondary mixing of the broken resin and impurities with the intact resin, thereby improving the cleaning quality;

[0030] 3. The water body can be purified by using a water filter, a TOC degradation tank and a purification tank, so that the water in the water pipe that has been used to flush the resin can be reused repeatedly to perform a cyclic flushing of the resin, effectively saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0032] Figure 2 It is a schematic diagram of the structure inside the housing of the embodiment of the present application;

[0033] Figure 3 This is a schematic diagram showing the internal structure of the cleaning tank in the embodiment of the present application;

[0034] Figure 4 It is a schematic diagram showing the tilting roller according to an embodiment of the present application.

[0035] Figure numerals: 1, shell; 11, partition; 12, cleaning chamber; 13, material placement chamber; 14, transparent window; 15, tilting roller; 16, horizontal roller; 2, water circulation component; 21, water inlet main pipe; 211, water inlet main valve; 22, water pipe; 23, first water inlet branch pipe; 231, first water valve; 232, first one-way valve; 24, second water inlet branch pipe; 241, second water valve; 25, water filter; 26, TOC degradation tank; 27, purification tank; 28, water circulation pump; 29, second one-way valve; 3, impurity discharge component; 31, impurity discharge pipe; 311, discharge valve; 32, impurity tank; 4, ventilation component; 41, ventilation pipe; 42, ventilation branch pipe; 421, Ventilation valve; 43, exhaust pipe; 44, exhaust branch pipe; 441, exhaust valve; 5, feed assembly; 51, feed tank; 52, feed pump; 53, feed pipe; 531, feed valve; 6, multi-stage cleaning assembly; 61, cleaning tank; 611, low flow rate tank; 612, medium flow rate tank; 613, high flow rate tank; 62, resin delivery pipe; 621, main valve; 63, delivery branch pipe; 631, branch valve; 64, sifter; 65, impurity baffle; 66, separation chamber; 67, impurity chamber; 68, drainage chamber; 7, discharge assembly; 71, collection tank; 72, discharge pipe; 721, discharge valve; 8, monitoring assembly; 81, pressure gauge; 82, TOC test meter; 83, flow meter. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-4 This application is described in further detail.

[0037] The present application discloses a multi-stage resin cleaning system. Figure 1 and Figure 2 , including a shell 1, a water circulation component 2, an impurity discharge component 3, a ventilation component 4, and a feeding component 5, a multi-stage cleaning component 6 and a discharging component 7 which are sequentially connected and arranged in the shell 1. The feeding component 5 is used to transport the resin to be cleaned to the multi-stage cleaning component 6, the multi-stage cleaning component 6 is used to perform multi-stage cleaning of the resin with increasing intensity, and the discharging component 7 is used to collect the resin after cleaning. The water circulation component 2, the ventilation component 4 and the impurity discharge component 3 are all connected to the multi-stage cleaning component 6. The water circulation component 2 fills the multi-stage cleaning component 6 with water and keeps it flowing to flush the resin. The ventilation component 4 is used to transfer the resin, and at the same time cooperates with the impurity discharge component 3 to discharge the broken resin and impurities separated in the multi-stage cleaning component 6.

[0038] Specifically, refer to Figure 2 and Figure 3The multi-stage cleaning component 6 includes a resin delivery pipe 62 and a plurality of vertically arranged cleaning tanks 61. The tank cross-sectional areas of the plurality of cleaning tanks 61 are different. The resin delivery pipe 62 is connected with a plurality of delivery branches 63 corresponding to the number of cleaning tanks 61. The delivery branches 63 are connected to the bottom ends of the corresponding cleaning tanks 61 in order from large to small according to the tank cross-sectional areas of the cleaning tanks 61, and are used to deliver resin between adjacent cleaning tanks 61. The feed component 5 is connected to the bottom end of the cleaning tank 61 with the largest tank cross-sectional area, and the discharge component 7 is connected to the bottom end of the cleaning tank 61 with the smallest tank cross-sectional area. At the same time, the water circulation component 2 connects the cleaning tanks 61 in order from large to small according to the tank cross-sectional areas of the cleaning tanks 61.

[0039] When in use, the resin first enters the cleaning tank 61 with the largest tank cross-sectional area from the feed component 5, and is continuously flushed by the water circulation component 2. After flushing, the broken resin and impurities are discharged by the impurity discharge component 3, and then the resin enters other cleaning tanks 61 in turn through the resin delivery pipe 62 for flushing, and the broken resin and impurities are discharged. Finally, the cleaned resin enters the discharge component 7 from the cleaning tank 61 with the smallest tank cross-sectional area. When the water flow rate of the water circulation component 2 remains unchanged, the water flows in turn into the cleaning tanks 61 with gradually smaller tank cross-sectional areas, and the water flow rate will continue to increase, so that the water flow rate in each cleaning tank 61 gradually increases, thereby realizing multi-stage and increasing intensity cleaning of the resin, improving the cleaning efficiency and cleaning quality.

[0040] At the same time, refer to Figure 2 and Figure 3 , a screener 64 is horizontally arranged in each cleaning tank 61, and an impurity baffle 65 is obliquely arranged above the screener 64 in each cleaning tank 61, the screener 64 and the impurity baffle 65 are fixed to the inner wall of the cleaning tank 61, the screener 64 is used to filter the broken resin and impurities, and the impurity baffle 65 is used to block the broken resin and impurities. The screener 64 and the impurity baffle 65 divide the cleaning tank 61 into a separation chamber 66 located at the bottom, an impurity chamber 67 located in the middle and a drainage chamber 68 located at the top, the resin conveying pipe 62, the feeding assembly 5 and the discharging assembly 7 are all connected to the separation chamber 66 of each cleaning tank 61, the impurity discharge assembly 3 is connected to the impurity chamber 67 of each cleaning tank 61, the ventilation assembly 4 is connected to the drainage chamber 68 of each cleaning tank 61, and the water inlet of each cleaning tank 61 connected to the water circulation assembly 2 is located in the separation chamber 66, and the water outlet is located in the drainage chamber 68.

[0041] During cleaning, the resin floats under the screen 64 under the action of buoyancy, that is, it is located in the separation chamber 66. As the water flows continuously from bottom to top, the broken resin and impurities pass through the screen 64 and are blocked under the impurity baffle 65, and are discharged from the impurity chamber 67 through the impurity discharge component 3. Then the resin enters the next cleaning tank 61 through the resin delivery pipe 62 to repeat the above cleaning process.

[0042] Reference Figure 2 and Figure 3 The ventilation assembly 4 includes a ventilation pipe 41 and an exhaust pipe 43. The ventilation pipe 41 is connected to the air source and is used to introduce inert gas into the cleaning tank 61. The ventilation pipe 41 is connected to a plurality of ventilation branches 42. The ventilation branches 42 are respectively connected to the drainage chamber 68 of each cleaning tank 61 and a ventilation valve 421 is provided at the connection point. The exhaust pipe 43 is connected to the gas collection device or directly leads to the outdoor air. The exhaust pipe 43 is connected to a plurality of exhaust branch pipes 44. The exhaust branch pipes 44 are respectively connected to the drainage chamber 68 of each cleaning tank 61 and an exhaust valve 441 is provided at the connection point. The ventilation valve 421 and the exhaust valve 441 are respectively used to control the connection state of the ventilation pipe 41, the exhaust pipe 43 and the corresponding cleaning tank 61. At the same time, a branch valve 631 is provided at the connection point between each delivery branch pipe 63 and the cleaning tank 61, and a main valve 621 is provided between two adjacent branch valves 631 of the resin delivery pipe 62. The branch valve 631 and the main valve 621 are respectively used to control the opening and closing of the corresponding delivery branch pipe 63 and the resin delivery pipe 62.

[0043] When the resin in a cleaning tank 61 is cleaned, the vent valve 421 at the top of the cleaning tank 61 is opened, and inert gas is introduced to discharge the broken resin and impurities between the screen 64 and the impurity baffle 65 from the impurity discharge component 3 with the water flow; then the vent valve 421 is closed, the exhaust valve 441 is opened to discharge the inert gas, and the water circulation component 2 is used to fill the cleaning tank 61 with water, and then the exhaust valve 441 is closed. If the cleaning tank 61 is not the cleaning tank 61 with the smallest tank cross-sectional area, the branch valve 631 between the cleaning tank 61 and the next cleaning tank 61, and the main valve 621 between the two branch valves 631 are opened, and then the vent valve 421 is opened to introduce inert gas, so that the resin enters the next cleaning tank 61 with the water flow; if the cleaning tank 61 is the cleaning tank 61 with the smallest tank cross-sectional area, the branch valve 631 and the vent valve 421 of the cleaning tank 61 are directly opened, and inert gas is introduced to allow the resin to enter the discharge component 7 with the water flow.

[0044] As an example, in this embodiment, three cleaning tanks 61 are provided, and the cleaning tanks 61 include a low flow rate tank 611, a medium flow rate tank 612, and a high flow rate tank 613. The tank cross-sectional area of ​​the low flow rate tank 611 is the largest, while the tank cross-sectional area of ​​the high flow rate tank 613 is the smallest. The resin first removes most of the resin fragments and impurities that are relatively easy to separate in the low flow rate tank 611 with a larger size, and the sieve 64 in the low flow rate tank 611 is larger in size, which is more convenient for a larger amount of resin fragments and impurities to pass through in the early stage, avoiding clogging of the sieve 64; then the resin is rinsed in the medium flow rate tank 612 with a larger flow rate, and the resin contained in the further rinsed resin contains fewer resin fragments and impurities; finally, the resin is rinsed in the high flow rate tank 613 with the largest flow rate, and the resin fragments and impurities that are relatively difficult to separate are removed. Using the multi-stage flow rate cleaning tank 61, the resin is first roughly washed, and then the cleaning intensity is gradually increased, so as to achieve multi-dimensional cleaning of the resin and improve the cleaning quality and efficiency.

[0045] Further, refer to Figure 2 and Figure 3 The impurity discharge component 3 includes an impurity discharge pipe 31, a discharge valve 311 and an impurity tank 32. There are multiple impurity discharge pipes 31 and they are respectively connected to the tank body of each cleaning tank 61 located between the screener 64 and the impurity baffle 65, and are located at the higher end of the impurity baffle 65. There are multiple discharge valves 311 and they are respectively arranged at the connection between the impurity discharge pipe 31 and the cleaning tank 61. The ends of the multiple impurity discharge pipes 31 away from the cleaning tank 61 are commonly connected to the impurity tank 32.

[0046] When it is necessary to discharge impurities, the discharge valve 311 and the vent valve 421 of the corresponding cleaning tank 61 are opened, and inert gas is introduced into the cleaning tank 61 to force water to flow into the impurity discharge pipe 31, and the broken resin and impurities floating on the bottom of the impurity baffle 65 are taken to the impurity tank 32. The impurity baffle 65 is inclined, so that when the water flows toward the impurity discharge pipe 31, it is easier to take the broken resin and impurities to the impurity tank 32, ensuring that the impurities in the cleaning tank 61 are discharged cleanly.

[0047] Reference Figure 2 and Figure 3 The feed assembly 5 includes a feed tank 51, a feed pump 52 and a feed pipe 53. The feed tank 51 is arranged in the housing 1 and is used to place the resin to be cleaned. The feed tank 51 is connected to the water circulation assembly 2. One end of the feed pipe 53 is connected to the feed tank 51, and the other end is connected to the separation chamber 66 of the cleaning tank 61 with the largest tank cross-sectional area. A feed valve 531 for controlling the on-off of the feed pipe 53 is arranged at one end of the feed pipe 53 close to the cleaning tank 61. The feed pump 52 is connected to the feed pipe 53 and is used to transport the resin in the feed tank 51 to the cleaning tank 61. In this embodiment, the feed pipe 53 is connected to the low flow rate tank 611.

[0048] During specific use, the resin to be cleaned is placed in the feed tank 51, and the water circulation component 2 is used to fill the feed tank 51 with water. The feed valve 531 is opened and the feed pump 52 is driven to transport the resin in the feed tank 51 to the low flow rate tank 611.

[0049] Reference Figure 2 and Figure 4 The discharge assembly 7 includes a discharge pipe 72, a discharge valve 721 and a collection tank 71. The collection tank 71 is arranged in the housing 1 and is used to collect the cleaned resin. One end of the discharge pipe 72 is connected to the collection tank 71, and the other end is connected to the delivery branch pipe 63 of the cleaning tank 61 with the smallest tank cross-sectional area, and is located at the end of the delivery branch pipe 63 away from the branch valve 631. The discharge valve 721 is arranged on the discharge pipe 72 and is used to control the on and off of the discharge pipe 72. In this embodiment, the discharge pipe 72 is connected to the delivery branch of the high flow rate tank 613.

[0050] After the resin completes the last cleaning in the cleaning tank 61 with the smallest tank cross-sectional area, open the discharge valve 721 and the branch valve 631 and the vent valve 421 of the cleaning tank 61, drive the air pump to introduce inert gas, and the water in the cleaning tank 61 gradually flows to the discharge pipe 72. The resin after cleaning follows the water flow into the collection tank 71.

[0051] Reference Figure 2 and Figure 3 The water circulation component 2 includes a water inlet main pipe 21, a water pipe 22, a first water inlet branch pipe 23 and a second water inlet branch pipe 24. One end of the water inlet main pipe 21 is connected to an ultrapure water source, and the other end is respectively connected to the first water inlet branch pipe 23 and the second water inlet branch pipe 24. One end of the second water inlet branch pipe 24 away from the water inlet main pipe 21 is connected to the feed tank 51. The water pipe 22 is used to connect each cleaning tank 61 and form a circulating cleaning water path. One end of the first water inlet branch pipe 23 away from the water inlet main pipe 21 is connected to the water pipe 22 and is used to transport water into the water pipe 22. At the same time, a water inlet main valve 211 for controlling the on and off of the water inlet main pipe 21 is provided on the water inlet main pipe 21, a first water valve 231 for controlling the on and off is provided on the first water inlet branch pipe 23, and a second water valve 241 for controlling the on and off is provided on the second water inlet branch pipe 24.

[0052] When preparing to clean the resin, open the main water inlet valve 211 and the second water valve 241 to drive the water pump to fill the feed tank 51 with water, so as to cooperate with the feed pump 52 to discharge the resin to be cleaned into the cleaning tank 61; after the inert gas is introduced, the water in the cleaning tank 61 is not full, open the main water inlet valve 211 and the first water valve 231, and drive the water pump to add water to the circulating cleaning waterway, so that the cleaning tank 61 remains full of water to ensure the normal circulation of the circulating cleaning waterway.

[0053] Further, refer to Figure 2 and Figure 3 The water circulation component 2 also includes a water filter 25, a TOC degradation tank 26 and a purification tank 27. The water pipe 22 connects the water filter 25, the TOC degradation tank 26, the purification tank 27 and a plurality of cleaning tanks 61 in sequence to form a circulation path. The water filter 25 is used to absorb tiny impurities in the water. The TOC degradation tank 26 uses ultraviolet rays to irradiate the water body to degrade TOC. The purification tank 27 is filled with electronic grade resin to absorb impurities in the water body, further improve the water quality, and realize water recycling. At the same time, a water circulation pump 28 is provided on the water pipe 22 to drive the water in the water pipe 22 to continuously circulate and flow to achieve the cleaning of the resin.

[0054] It should be noted that the water pipe 22 connects each cleaning tank 61 in sequence according to the tank cross-sectional area from large to small, and the water outlet of the cleaning tank 61 is located in the drainage chamber 68 of the cleaning tank 61, and the water inlet is located in the separation chamber 66 of the cleaning tank 61, so that water flows from the separation chamber 66 to the impurity chamber 67 in the cleaning tank 61 to flush the resin.

[0055] Further, refer to Figure 2 and Figure 3 The first water inlet branch pipe 23 is provided with a first one-way valve 232, and the flow direction of the first one-way valve 232 is from the water inlet main pipe 21 to the water pipe 22. The first one-way valve 232 is used to prevent the internal water pressure from being too high and causing backflow when the water circulation component 2 is replenished with water, thereby improving the safety of the equipment.

[0056] At the same time, the water pipe 22 between the TOC degradation tank 26 and the purification tank 27 is provided with a second one-way valve 29, which is located at a position of the water pipe 22 close to the first water inlet branch 23, and the flow direction is from the TOC degradation tank 26 to the multi-stage cleaning assembly 6. The second one-way valve 29 is used to prevent the circulating cleaning waterway of the resin from flowing back, ensure the filtering effect of the screener 64 and the impurity baffle 65, and avoid secondary mixing of the resin and impurities after separation due to backflow.

[0057] Reference Figure 2 and Figure 3A monitoring component 8 is provided on the water pipe 22, and the monitoring component 8 includes a pressure gauge 81, a TOC detection meter 82 and a flow meter 83. The pressure gauge 81 is provided on the water pipe 22 and is used to detect the water pressure in the water pipe 22. When the water pressure in the water pipe 22 is consistent with the water pressure of the external water pipe, it indicates that the system is full of water. The TOC detection meter 82 is provided on the water pipe 22 between the multi-stage cleaning component 6 and the water filter 25, and is used to detect the TOC value of the water flow discharged from the multi-stage cleaning component 6, so as to judge the purity of the resin in the cleaning tank 61, and at the same time, according to the value of the TOC detection meter 82, it is judged whether to discharge the resin into the next cleaning tank 61 for further cleaning. The flow meter 83 is provided on the water pipe 22 between the TOC degradation tank 26 and the purification tank 27, and is used to detect the water flow in the water pipe 22. Combined with the value fed back by the TOC detection meter 82, the output of the water circulation pump 28 is adjusted, and the water flow is correspondingly increased or decreased according to the cleaning condition of the resin to achieve the best cleaning effect.

[0058] Reference Figure 3 and Figure 4 , a partition 11 is arranged in the shell 1, and the partition 11 divides the shell 1 into a cleaning chamber 12 located at the top and a material placement chamber 13 located at the bottom. The water circulation component 2 and the multi-stage cleaning component 6 are arranged in the cleaning chamber 12, and the feeding component 5, the discharging component 7 and the impurity discharge component 3 are arranged in the material placement chamber 13. A transparent window 14 is arranged on one side wall of the shell 1 located in the cleaning chamber 12, and the side wall of the cleaning tank 61 is a transparent tank body made of PVC material, and the resin cleaning status can be directly observed through the transparent window 14. A removable back panel is arranged on the side opposite to the transparent window 14 of the shell 1 to facilitate the maintenance of the various components of the shell 1 in the later stage.

[0059] In addition, the housing 1 is provided with an inclined roller 15 and a horizontal roller 16 in the material placement cavity 13. The inclined roller 15 is used to carry the feed tank 51, and the horizontal roller 16 is used to carry the collection tank 71 and the impurity tank 32. The rollers are used to facilitate the placement of each tank, thereby improving the convenience of use; at the same time, the inclined roller 15 is used to tilt the feed tank 51, and the feed pipe 53 is extended to the lower end of the bottom of the feed tank 51, so as to discharge the resin in the feed tank 51 cleanly.

[0060] The implementation principle of a multi-stage resin cleaning system disclosed in the embodiment of the present application is:

[0061] First, the resin to be cleaned is placed in the feed tank 51, and then the water circulation component 2 is used to fill the feed tank 51 with water, and the feed pump 52 is driven to transport the resin to the low flow rate tank 611 to complete the loading;

[0062] Then, each tank is filled with water by using the water circulation component 2, and whether the value displayed by the pressure gauge 81 is consistent with the external water pipe pressure is judged whether the internal water channel is filled with water;

[0063] The resin can be cleaned by driving the water circulation pump 28, and the broken resin and impurities are passed through the screen 64 with the water flow. After the cleaning is completed, the air pump is driven to discharge the broken resin and impurities into the impurity tank 32 through the impurity discharge pipe 31, so that the impurities can be discharged and the resin and impurities can be separated.

[0064] Then, the water circulation component 2 is used to replenish water again, and the air pump is driven to press the resin into the medium flow rate tank 612. After repeating the above cleaning process, the resin is pressed into the high flow rate tank 613 for the last flushing. The water flow rate in the low flow rate tank 611, the medium flow rate tank 612 and the high flow rate tank 613 gradually increases, thereby gradually increasing the strength of the water flow to flush the resin, achieving efficient cleaning of the resin and ensuring the effect of resin cleaning;

[0065] After cleaning is completed, the cleaned resin is uniformly collected through the discharging assembly 7, and the entire cleaning process is basically automated, with high cleaning efficiency.

[0066] The cleaning process of a multi-stage resin cleaning system disclosed in an embodiment of the present application includes the following steps:

[0067] S1: Place the resin to be cleaned into the feed tank 51, and push the feed tank 51 into the shell 1 through the inclined roller 15, open the main water inlet valve 211 and the second water valve 241, drive the water pump to fill the feed tank 51 with water, and then close the main water inlet valve 211 and the second water valve 241.

[0068] S2: Open the feed valve 531, drive the feed pump 52, and transport the resin to the low flow rate tank 611, then close the feed valve 531, open the main water inlet valve 211 and the first water valve 231, and drive the water pump to add water to the water pipe 22 and each tank body until the value of the pressure gauge 81 is consistent with the water pressure of the external water pipe, and then close the main water inlet valve 211 and the first water valve 231.

[0069] S3: Drive the water circulation pump 28 to start cleaning the resin. Flexible adjustment is made to the output of the water circulation pump 28 according to the values ​​of the TOC detection meter 82 and the flow meter 83. Visual observation of the clarity of the low flow rate tank 611 and the values ​​of the TOC detection meter 82 are used to determine whether the cleaning of the low flow rate tank 611 is completed.

[0070] S4: After the cleaning in the low flow rate tank 611 is completed, the water circulation pump 28 is turned off, the ventilation valve 421 and the discharge valve 311 of the low flow rate tank 611 are opened, and the air pump is driven to introduce inert gas into the low flow rate tank 611 to discharge the broken resin and impurities into the impurity tank 32, and then the ventilation valve 421 and the discharge valve 311 are closed; the exhaust valve 441, the main water inlet valve 211 and the first water valve 231 of the low flow rate tank 611 are opened to discharge the inert gas in the low flow rate tank 611 and fill the low flow rate tank 611 with water, and then the exhaust valve 441, the main water inlet valve 211 and the first water valve 231 are closed.

[0071] S5: Open the vent valve 421 of the low flow rate tank 611, and at the same time open the branch valves 631 of the low flow rate tank 611 and the medium flow rate tank 612 and the main valve 621 between the two branch valves 631, drive the air pump to introduce inert gas and press the resin into the medium flow rate tank 612 along with the water flow, then close each valve body, open the exhaust valve 441 to exhaust and fill each tank body with water.

[0072] S6: Repeat steps S3-S5 in the medium flow rate tank 612 to complete cleaning and discharge the resin into the high flow rate tank 613, and repeat steps S3-S4 in the high flow rate tank 613.

[0073] S7: Open the discharge valve 721 and the vent valve 421 and the branch valve 631 of the high flow rate tank 613, drive the air pump to introduce inert gas and press the resin into the collection tank 71 along with the water flow. After the resin is discharged, close the discharge valve 721 and the branch valve 631, open the vent valve 421 of each cleaning tank 61, and introduce inert gas to purge each tank body and pipeline.

[0074] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-stage resin cleaning system, characterized in that: The invention comprises a water circulation component (2), an impurity discharge component (3), a ventilation component (4), and a feed component (5), a multi-stage cleaning component (6), and a discharge component (7) which are connected in sequence. The feed component (5) is used to transport the resin to be cleaned to the multi-stage cleaning component (6), and the discharge component (7) is used to collect the resin after cleaning. The water circulation component (2), the ventilation component (4), and the impurity discharge component (3) are all connected to the multi-stage cleaning component (6). The water circulation component (2) is used to supply water to the multi-stage cleaning component (6), and the ventilation component (4) is used to transfer the resin and cooperate with the impurity discharge component (3) to discharge the broken resin and impurities separated in the multi-stage cleaning component (6). The multi-stage cleaning component (6) comprises a plurality of cleaning tanks (61) which are connected in sequence. The cross-sectional area of ​​each cleaning tank (61) gradually decreases along the direction of material flow. A TOC detection meter (82) is provided on the pipeline of the water circulation component (2). The multi-stage cleaning component (6) further comprises a resin delivery pipe (62). A screener (64) is provided in each of the cleaning tanks (61). An impurity baffle (65) is provided in the cleaning tank (61) above the screener (64). The periphery of the screener (64) and the periphery of the impurity baffle (65) are fixed to the inner wall of the cleaning tank (61). The screener (64) is used to filter broken resin and impurities. The impurity baffle (65) is used to block broken resin and impurities. The screener (64) and the impurity baffle (65) separate the cleaning tank (61) into a separation chamber (66) at the bottom, an impurity chamber (67) in the middle, and a drainage chamber (68) at the top. The resin delivery pipe (62) is connected to the separation chamber (66) of the corresponding cleaning tank (61) in order of the tank cross-sectional area of ​​the cleaning tank (61) from large to small. The feed assembly (5) is connected to the separation chamber (66) of the cleaning tank (61) with the largest tank cross-sectional area. The discharge assembly (7) is connected to the separation chamber (66) of the cleaning tank (61) with the smallest tank cross-sectional area. The impurity discharge assembly (3) is connected to the impurity chamber (67) of each cleaning tank (61). The water circulation assembly (2) connects each cleaning tank (61) in order of the tank cross-sectional area from large to small. The water inlet of each cleaning tank (61) is located in the separation chamber (66), and the water outlet is located in the drainage chamber (68).

2. A multi-stage resin cleaning system according to claim 1, characterized in that: The feed assembly (5) comprises a feed tank (51), a feed pump (52) and a feed pipe (53); one end of the feed pipe (53) is connected to the separation chamber (66) of the cleaning tank (61) with the largest tank cross-sectional area, and the other end extends into the bottom of the feed tank (51); the feed pump (52) is arranged on the feed pipe (53); the feed pipe (53) is provided with a feed valve (531); the discharge assembly (7) comprises a discharge pipe (72), a discharge valve (721) and a collection tank (71); one end of the discharge pipe (72) is connected to the collection tank (71), and the other end is connected to the separation chamber (66) of the cleaning tank (61) with the smallest tank cross-sectional area; the discharge valve (721) is arranged on the discharge pipe (72).

3. A multi-stage resin cleaning system according to claim 2, characterized in that: It also comprises a shell (1) for mounting the components, wherein a partition (11) is arranged in the shell (1), and the partition (11) divides the shell (1) into a cleaning chamber (12) located at the top and a material placement chamber (13) located at the bottom, wherein the multi-stage cleaning component (6) is arranged in the cleaning chamber (12), and an inclined roller (15) and a horizontal roller (16) are arranged in the material placement chamber (13), wherein the inclined roller (15) is used to carry the feed tank (51).

4. A multi-stage resin cleaning system according to claim 1, characterized in that: The resin delivery pipe (62) is connected to a plurality of delivery branches (63) corresponding to the number of cleaning tanks (61). The plurality of delivery branches (63) are connected to the separation chambers (66) of the corresponding cleaning tanks (61) in order from large to small according to the cross-sectional area of ​​the tank bodies. Each of the delivery branches (63) is provided with a branch valve (631), and the resin delivery pipe (62) located between two adjacent branch valves (631) is provided with a main valve (621).

5. A multi-stage resin cleaning system according to claim 1, characterized in that: The impurity discharge assembly (3) comprises an impurity tank (32) and an impurity discharge pipe (31); one end of the impurity discharge pipe (31) is connected to the impurity tank (32), and the other end is respectively connected to the impurity chamber (67) of each cleaning tank (61); the impurity discharge pipe (31) is provided with a discharge valve (311).

6. A multi-stage resin cleaning system according to claim 1, characterized in that: The ventilation assembly (4) comprises a ventilation pipe (41), a ventilation valve (421), an exhaust pipe (43) and an exhaust valve (441); the ventilation pipe (41) is connected to the drainage cavity (68) of each cleaning tank (61) and is connected to an inert gas source; the exhaust pipe (43) is connected to the drainage cavity (68) of each cleaning tank (61) and is used to discharge the inert gas introduced into the cleaning tank (61).

7. A multi-stage resin cleaning system according to claim 1, characterized in that: The water circulation component (2) comprises a water inlet main pipe (21), a water pipe (22), a water filter (25), a TOC degradation tank (26) and a purification tank (27). One end of the water inlet main pipe (21) is connected to a water pump, and the other end is connected to the water pipe (22). The water pipe (22) connects the water filter (25), the TOC degradation tank (26), the purification tank (27) and the multi-stage cleaning component (6) in sequence to form a circulation path. The water pipe (22) is provided with a water circulation pump (28) for driving the circulation of water. The water filter (25) is used to filter impurities in the water. The TOC degradation tank (26) utilizes ultraviolet rays to irradiate the water to degrade TOC. The purification tank (27) is filled with electronic grade resin and is used to absorb impurities in the water.

8. A multi-stage resin cleaning system according to claim 7, characterized in that: The water pipe (22) is provided with a pressure gauge (81) and a flow meter (83).

9. A multi-stage resin cleaning system according to claim 7, characterized in that: The water circulation component (2) further comprises a first water inlet branch pipe (23), the first water inlet branch pipe (23) being used to connect the water inlet main pipe (21) and the water passage pipe (22), the first water inlet branch pipe (23) being provided with a first one-way valve (232), the flow direction of the first one-way valve (232) being from the water inlet main pipe (21) to the water passage pipe (22), the water passage pipe (22) being provided with a second one-way valve (29) at a position close to the connection with the first water inlet branch pipe (23), the flow direction of the second one-way valve (29) being from the TOC degradation tank (26) to the multi-stage cleaning component (6).

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