A device for removing physical contaminants from a resin

Abstract

The utility model provides a device for removing resin physical contaminant, including more than one number of resin bed, resin bed is provided with resin filling valve and resin discharge valve, resin conveying system includes resin pipeline and resin conveying pump, and resin washing system includes resin washing tower, and resin filling valve and resin discharge valve are connected with the bottom of resin washing tower through resin pipeline, one side of the bottom of resin washing tower is connected with flushing pipeline, and compressed gas source is connected with flushing pipeline through first air inlet pipeline, and pressure water source is connected with flushing pipeline through water inlet pipeline, the utility model discloses through the resin in resin tank is poured out closed bed body to resin washing tower, through washing or mixed gas washing, utilizes the different specific gravity of broken resin and other agglomerate physical contaminant, removes broken resin carbon powder particle and other pollutants, improves resin regeneration rate, guarantees product water quality, increases resin overall service life, guarantees the water quality of production water.

Description

Technical Field

[0001] This utility model relates to the field of physics, and more particularly to the treatment of physical pollutants in resins, and especially to a device for removing physical pollutants from resins. Background Technology

[0002] With the rapid development of my country's chip industry, the demand for electronic-grade ultrapure water is increasing. Currently, the mainstream deionization process for ultrapure water treatment systems adopts the resin method. Water softening and deionization adopts a full-bed resin bed process structure. Compared with other non-full-bed structures, this process structure has particularly outstanding economic and energy-saving benefits, and therefore has become the mainstream process.

[0003] However, during the resin regeneration process, issues such as broken resin, broken carbon particles from pretreated water (sand filter, carbon filter), and resin agglomeration after prolonged operation can all affect the quality of the pure water system's produced water. These physical particle agglomerations and resin caking are difficult to handle during normal full-bed regeneration. These physical contaminants not only clog the bed distributor but also agglomerate, causing normal resin to be coated and clump together, resulting in less and less effective resin. Although the actual amount of high-quality effective resin is sufficient, resin replacement is still necessary, increasing maintenance costs during regeneration, reducing system stability, and shortening the overall lifespan of the resin. Summary of the Invention

[0004] The purpose of this invention is to provide a device for removing physical contaminants from resin. This device aims to solve the technical problem in the prior art where physical particulate contaminants such as broken resin, carbon powder particles from the pretreatment unit, and resin aging and agglomeration are difficult to discharge normally, resulting in poor water quality in the system and affecting the service life of the resin.

[0005] This utility model discloses a device for removing physical contaminants from resin, comprising a water treatment system, which includes one or more resin beds. Each resin bed has an inlet valve at its upper end and an outlet valve at its lower end. The resin bed contains a resin bed body. The device also includes a resin delivery system, a resin washing system, an air intake system, and a water intake system. Each resin bed is equipped with a resin filling valve and a resin discharge valve. The resin filling valve communicates with the upper part of the resin bed body, and the resin discharge valve communicates with the lower part of the resin bed body. The resin delivery system includes resin pipelines and a resin delivery pump. The resin washing system includes a resin washing tower. The resin filling valve and the resin discharge valve are connected to the bottom of the resin washing tower via resin pipelines. A resin isolation valve is installed in the resin pipelines. The inlet of the resin delivery pump is connected to the resin pipeline between the resin isolation valve and the resin washing tower. The outlet of the resin delivery pump... The resin washing tower is connected to the resin isolation valve and the resin bed via a resin pipeline. One side of the bottom of the resin washing tower is connected to a rinsing pipeline. The air intake system includes a compressed air source, which is connected to the rinsing pipeline via a first air intake pipeline. A first air intake isolation valve is installed in the first air intake pipeline. The water intake system includes a pressurized water source, which is connected to the rinsing pipeline via a water intake pipeline. A water intake isolation valve is installed in the water intake pipeline. A transparent pipe is installed at the bottom of the resin washing tower, and the resin pipeline is connected to the transparent pipe. The resin pipeline is connected to the drain outlet via a first drain pipe, which is equipped with a drain valve. The top of the resin washing tower is open. An overflow weir is installed on the upper part of the inner wall of the resin washing tower. The overflow weir is a U-shaped trough structure with an upward opening. The top height of the overflow weir is lower than the top height of the resin washing tower. The upper side of the bottom of the overflow weir is connected to the drain outlet via a second drain pipe.

[0006] Furthermore, the first intake pipe is equipped with a first intake pressure regulating valve and an intake flow meter.

[0007] Furthermore, the resin delivery pump is equipped with an inlet isolation valve at its inlet and an outlet isolation valve at its outlet.

[0008] Furthermore, the resin delivery pump is a pneumatic diaphragm pump, and the air inlet of the pneumatic diaphragm pump is connected to a compressed air source through a second air inlet pipeline. The second air inlet pipeline is equipped with a second air inlet shut-off valve and a second air inlet pressure regulating valve.

[0009] Furthermore, an inlet flow meter is installed in the inlet pipe.

[0010] Compared with existing technologies, the effects of this invention are positive and significant. This invention involves pouring resin from a resin tank into a closed bed and then into a resin washing tower. Through water washing or mixed gas washing, it utilizes the difference in specific gravity between broken resin and other agglomerated physical contaminants to remove contaminants such as carbon particles from the broken resin, thereby improving resin regeneration rate, ensuring product water quality, increasing the overall service life of the resin, and guaranteeing the quality of the produced water. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the present invention.

[0012] Marked in the image:

[0013] 100. Water treatment system; 101. Resin bed; 1011. Cationic resin bed; 1012. Anionic resin bed; 102. Inlet valve; 103. Outlet valve; 104. Resin filling valve; 105. Resin discharge valve; 106. Decarbonization tower;

[0014] 200. Resin delivery system; 201. Resin pipeline; 202. Resin shut-off valve; 203. Resin delivery pump; 204. Second air inlet pipeline; 205. Second air inlet shut-off valve; 206. Second air inlet pressure regulating valve; 207. Outlet shut-off valve; 208. Inlet shut-off valve;

[0015] 300. Resin washing system; 301. Resin washing tower; 302. Flushing pipeline; 303. Overflow weir; 304. Transparent pipe; 305. First drain pipe; 306. Drain valve; 307. Second drain pipe; 308. Drain outlet;

[0016] 400. Intake system; 401. Compressed air source; 402. First intake pipeline; 403. First intake isolation valve; 404. First intake pressure regulating valve; 405. Intake flow meter;

[0017] 500. Water inlet system; 501. Pressure water source; 502. Water inlet pipeline; 503. Water inlet flow meter; 504. Water inlet isolation valve. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this does not limit the present invention.

[0019] like Figure 1As shown, the present invention discloses a device for removing physical contaminants from resin, comprising a water treatment system 100, wherein the water treatment system 100 includes one or more resin beds 101, an inlet valve 102 is provided at the upper end of each resin bed 101, an outlet valve 103 is provided at the lower end of each resin bed 101, and a resin bed body is disposed within each resin bed 101. The device also includes a resin conveying system 200, a resin washing system 300, an air intake system 400, and a water intake system 500. Each resin bed 101 is equipped with a resin filling valve 104 and a resin discharge valve 105. The resin filling valve 104 is connected to the upper part of the resin bed, and the resin discharge valve 105 is connected to the lower part of the resin bed. The resin delivery system 200 includes a resin pipeline 201 and a resin delivery pump 203. The resin washing system 300 includes a resin washing tower 301. The resin filling valve 104 and the resin discharge valve 105 are connected to the bottom of the resin washing tower 301 through the resin pipeline 201. A resin isolation valve 202 is installed in the resin pipeline 201. The inlet of the resin delivery pump 203 is connected to the resin pipeline 201 between the resin isolation valve 202 and the resin washing tower 301. The outlet of 203 is connected to the resin pipeline 201 between the resin isolation valve 202 and the resin bed 101; one side of the bottom of the resin washing tower 301 is connected to the flushing pipeline 302; the air intake system 400 includes a compressed air source 401, which is connected to the flushing pipeline 302 through a first air intake pipeline 402, in which a first air intake isolation valve 403 is installed; the water intake system 500 includes a pressurized water source 501, which is connected to the flushing pipeline 302 through a water intake pipeline 502, in which a water intake isolation valve 504 is installed. A transparent tube 304 is provided at the bottom of the resin washing tower 301. The resin pipeline 201 is connected to the transparent tube 304. The resin pipeline 201 is connected to the drain port 308 through a first drain pipe 305. The first drain pipe 305 is provided with a drain valve 306. The top of the resin washing tower 301 is open. An overflow weir 303 is provided on the upper part of the inner wall of the resin washing tower 301. The overflow weir 303 is a U-shaped trough structure with the opening facing upward. The top height of the overflow weir 303 is lower than the top height of the resin washing tower 301. The bottom upper side of the overflow weir 303 is connected to the drain port 308 through a second drain pipe 307.

[0020] Furthermore, the first intake pipe 402 is equipped with a first intake pressure regulating valve 404 and an intake flow meter 405.

[0021] Furthermore, the resin delivery pump 203 is provided with an inlet isolation valve 208 at its inlet and an outlet isolation valve 207 at its outlet.

[0022] Furthermore, the resin delivery pump 203 is a pneumatic diaphragm pump, and the air inlet of the pneumatic diaphragm pump is connected to the compressed air source 401 through the second air inlet pipe 204. The second air inlet pipe 204 is provided with a second air inlet shut-off valve 205 and a second air inlet pressure regulating valve 206.

[0023] Furthermore, an inlet flow meter 503 is installed in the inlet pipe 502.

[0024] Specifically, the upper side of the resin bed is connected to the resin filling valve 104, and the lower side of the resin bed is connected to the resin discharge valve 105. The resin bed uses the pressure of the inlet water to transport the mixture of resin and water through the resin discharge valve 105 and the resin pipeline 201 to the resin washing tower 301. After the resin is transported, the resin discharge valve 105 is closed.

[0025] The resin washing tower 301 can be designed with a capacity according to the actual amount of resin. Generally, the volume is 1.2-1.5 times the volume of a single bed of resin after expansion. The resin washing tower 301 uses an overflow weir 303 for drainage. During the resin washing process, the inlet water flow rate of the flushing pipe 302 is adjusted to ensure that high-quality resin is suspended in the middle layer of the resin washing tower. Small particles such as broken resin carbon powder are discharged from the overflow weir 303. During the washing process, large particles that are heavier than high-quality resin sink to the bottom of the resin washing tower 301 and are discharged to the drain outlet 308 through the drain valve 306.

[0026] The drainage from the upper overflow weir 303 can be visually assessed by taking samples of the slabs to determine the final removal of small particles. Heavier particles in the lower layer will eventually settle at the bottom of the resin washing tower 301, and can be observed through the transparent tube 304 before being discharged from the resin washing tower 301.

[0027] If resin clumping or agglomeration is found during the resin washing process, compressed air can be appropriately injected into the flushing pipe 302 through the air intake system 400. The agglomeration of resin is broken up by air scrubbing and disturbance, ensuring the washing effect.

[0028] During the water washing process, the upper layer of the resin washing tower 301 was drained and the expansion of the resin layer during water washing was observed. The water washing flow rate was adjusted so that the high-quality resin was retained 10-15cm below the overflow weir of the resin washing tower.

[0029] After the resin washing is completed, open the resin filling valve 104 and the resin transfer pump 203, close the resin isolation valve 202, and transfer the high-quality resin to the original resin bed 101 through the resin transfer pump 203 for regeneration and standby.

[0030] The air inlet flow meter 405 and the water inlet flow meter 503 facilitate the display and recording of the flow parameters of the water and air inlet, and can control the first air inlet pressure regulating valve 404 and the water inlet isolation valve 504 according to the parameters.

[0031] Example 1

[0032] like Figure 1 As shown, taking the mainstream 2B3T process in this field as an example, the water treatment system 100 includes two resin beds 101 and a decarbonization tower 106. The resin bed 101 is divided into a cation exchange resin bed 1011 and an anion exchange resin bed 1012. The pretreated water first enters the cation exchange resin bed 1011 to adsorb the cations in the water using cation exchange resin, then enters the decarbonization tower 106 to remove carbon dioxide from the water and reduce the alkalinity of the water, and finally enters the anion exchange resin bed 1012 to adsorb the anions in the water using anion exchange resin.

[0033] The following are the methods for using the resin in the cation exchange resin bed 1011 or the anion exchange resin bed 1012 to remove physical contaminants:

[0034] 1. Open the resin discharge valve 105 of a resin bed 101, then open the water inlet valve 102 of the resin bed 101, and open the resin isolation valve 202 of the resin pipeline 201. The resin in the resin bed 101 is transported to the resin washing tower 301 through the resin pipeline 201 by the water inlet pressure of the water inlet valve 102. After the resin is completely transported to the resin washing tower 301, adjust the resin discharge valve 105 to observe the resin condition in the resin washing tower 301.

[0035] 2. Then close the inlet valve 102 and the resin discharge valve 105 of the resin bed 101 to ensure the normal operation of other resin beds 101.

[0036] 3. Observe whether there is clump of resin in the resin washing tower 301. If there is clump of resin, adjust the first inlet pressure regulating valve 404 and slowly open the first inlet isolation valve 403. Observe the air scrubbing condition of the resin washing tower 301. After the resin is completely loosened, close the first inlet isolation valve 403.

[0037] 4. Open the inlet isolation valve 504 to 1 / 4 opening, observe the drainage of the overflow weir 303 of the resin washing tower 301, adjust the inlet valve 102 of the resin washing tower 301 to ensure the best cleaning conditions, and record the current flow rate value; at this time, a shovel can be used to sample the upper drainage of the overflow weir 303 to observe the amount of broken resin, take a photo for record-keeping, and facilitate comparison before and after cleaning.

[0038] 5. After the upper layer sample observation of crushed resin carbon powder and other particulate matter is completed, close the inlet water isolation valve 504, observe the transparent tube 304 at the bottom of the resin washing tower 301. If there are many large particulate pollutants, open the drain valve 306 to discharge the pollutants, and then close the drain valve 306.

[0039] 6. Slightly open the first air inlet isolation valve 504 to ensure uniform mixing of resin and water, and prevent resin blockage of resin delivery pump 203 during transportation. Open the resin filling valve 104 and water outlet valve 103 of resin bed 101. Open the outlet isolation valve 207 and inlet isolation valve 208 of resin delivery pump 203. Close the resin isolation valve 202. Adjust the air inlet pressure regulating valve of resin delivery pump 203 to about 5 bar. Open the air inlet isolation valve of resin delivery pump 203 and start resin delivery pump 203. Wait for the resin to be completely delivered into resin bed 101 for regeneration and standby.

Claims

1. An apparatus for removing physical contaminants from resin, comprising a water treatment system (100), the water treatment system (100) comprising one or more resin beds (101), an inlet valve (102) provided at the upper end of each resin bed (101), an outlet valve (103) provided at the lower end of each resin bed (101), and a resin bed body disposed within each resin bed (101), characterized in that: It also includes a resin delivery system (200), a resin washing system (300), an air intake system (400), and a water intake system (500). The resin bed (101) is equipped with a resin filling valve (104) and a resin discharge valve (105). The resin filling valve (104) is connected to the upper part of the resin bed, and the resin discharge valve (105) is connected to the lower part of the resin bed. The resin delivery system (200) includes a resin pipeline (201) and a resin delivery pump (203). The resin washing system (300) includes a resin washing tower (301). The resin filling valve (104) and the resin... The discharge valve (105) is connected to the bottom of the resin washing tower (301) via a resin pipeline (201). A resin isolation valve (202) is installed in the resin pipeline (201). The inlet of the resin transfer pump (203) is connected to the resin pipeline (201) between the resin isolation valve (202) and the resin washing tower (301). The outlet of the resin transfer pump (203) is connected to the resin pipeline (201) between the resin isolation valve (202) and the resin bed (101). One side of the bottom of the resin washing tower (301) is connected to the flushing pipeline (302). The air intake system (400) The system includes a compressed air source (401), which is connected to a flushing pipeline (302) via a first air inlet pipeline (402). A first air inlet shut-off valve (403) is installed in the first air inlet pipeline (402). The water inlet system (500) includes a pressurized water source (501), which is connected to the flushing pipeline (302) via a water inlet pipeline (502). A water inlet shut-off valve (504) is installed in the water inlet pipeline (502). A transparent pipe (304) is installed at the bottom of the resin washing tower (301). The resin pipeline (201) is connected to the transparent... The resin pipeline (201) is connected to the drain outlet (308) via the first drain pipe (305). The first drain pipe (305) is equipped with a drain valve (306). The top of the resin washing tower (301) is open. An overflow weir (303) is provided on the upper part of the inner wall of the resin washing tower (301). The overflow weir (303) is a U-shaped groove structure with the opening facing upward. The top height of the overflow weir (303) is lower than the top height of the resin washing tower (301). The bottom upper side of the overflow weir (303) is connected to the drain outlet (308) via the second drain pipe (307).

2. The apparatus for removing physical contaminants from resin as described in claim 1, characterized in that: The first intake pipe (402) is equipped with a first intake pressure regulating valve (404) and an intake flow meter (405).

3. The apparatus for removing physical contaminants from a resin of claim 1, wherein: The resin delivery pump (203) is provided with an inlet isolation valve (208) at its inlet and an outlet isolation valve (207) at its outlet.

4. The apparatus for removing physical contaminants from resin as described in claim 1, characterized in that: The resin delivery pump (203) is a pneumatic diaphragm pump. The air inlet of the pneumatic diaphragm pump is connected to the compressed air source (401) through the second air inlet pipeline (204). The second air inlet pipeline (204) is equipped with a second air inlet shut-off valve (205) and a second air inlet pressure regulating valve (206).

5. The apparatus for removing physical contaminants from resin as described in claim 1, characterized in that: A water inlet flow meter (503) is installed in the water inlet pipe (502).

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