Modification device

Abstract

The utility model provides a modification device which comprises a modification tank and a tool, and the tool is used for installing coiled materials and arranged in the modification tank. The tool comprises a mounting shaft, a cavity is formed in the mounting shaft, a first through hole communicated with the cavity is formed in the circumferential surface of the mounting shaft, an opening is formed in one end of the mounting shaft, and the opening is communicated with the cavity. According to the device for modifying the non-woven fabric applied to the filter element, the non-woven fabric coiled material is fixed on the tool in the modification tank for modification, so that the modified non-woven fabric capable of adsorbing heavy metals can be prepared. The modification liquid in the modification tank can enter the coiled material from the inner cavity of the mounting shaft, so that the modification liquid flows out from the interior of the coiled material to the exterior of the coiled material, the modification degree of the middle part and the modification degree of the external part of the non-woven fabric are kept consistent, uniform and stable modification of the non-woven fabric coiled material is realized, and the quality of the modified non-woven fabric is improved.

Description

Technical Field

[0001] The utility model particularly relates to a modification device. Background Art

[0002] In the field of household water purification, the most commonly used technologies for removing trace heavy metals in water are membrane separation technology and activated carbon adsorption technology, which are centered on reverse osmosis membrane, nanofiltration membrane, and ultrafiltration membrane. The preparation process of reverse osmosis filter is complicated. While removing heavy metals in water, it also removes mineral elements that are beneficial to the human body. The removal rate of heavy metals is about 90%. The removal rate of trace heavy metals by nanofiltration membrane is about 80%. The retention accuracy of ultrafiltration membrane is poor, and the adsorption efficiency of activated carbon is not high. Other methods for removing heavy metals, such as activated carbon adsorption and ion exchange, have problems such as poor removal effect, low efficiency, and complex preparation process. Heavy metals in water will gradually accumulate in the human body after drinking, causing great harm to human health. Therefore, it is necessary to further improve the removal rate of heavy metals in drinking water.

[0003] At present, the most common method for removing heavy metals in the field of household water purification is the reverse osmosis filter element. The existing reverse osmosis filter elements have the following common problems: First, the preparation process is complex and the cost is high: first, it needs to be prepared into fibers, membrane fibers or ion exchange resins, and then made into filter elements. The process is complicated, there are many links, and the yield is low; second, the material preparation process uses a large amount of organic solvents, and a large amount of organic waste liquid and waste gas will be generated, causing environmental pollution; third, the activated carbon and the adsorbent are mainly combined with physical bonds, the binding ability is weak, there is a problem of adsorbent loss, and the performance stability of the filter element is at risk. Through experiments, it was found that the modified non-woven fabric has a very good effect on the removal of heavy metals, so it is necessary to modify the non-woven fabric and apply it to the filter element to enhance the ability of the filter element to remove heavy metals. Therefore, a device specifically for modifying non-woven fabrics is needed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defect that the filter element in the prior art has a poor heavy metal removal effect. The problem of the poor heavy metal removal effect of the filter element can be improved by modifying the non-woven fabric, and a modification device is provided.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a modification device, which comprises a modification tank and a tool, wherein the tool is used for installing a coiled material and the tool is arranged in the modification tank;

[0007] The tooling comprises a mounting shaft, a cavity is provided in the mounting shaft, a first through hole communicating with the cavity is opened on the circumference of the mounting shaft, and an opening is provided at one end of the mounting shaft, the opening communicating with the cavity;

[0008] The modification device also includes a delivery pump, a first water inlet pipe and a first water outlet pipe, one end of the first water inlet pipe is connected to the outlet of the delivery pump, the other end of the first water inlet pipe is communicated with the opening, one end of the first water outlet pipe is connected to the inlet of the delivery pump, and the other end of the first water outlet pipe is arranged in the modification tank for modifying the modified tank.

[0009] The utility model provides a device for modifying non-woven fabrics used in filter elements. By fixing the non-woven fabric coil on a tooling in a modification tank for modification, the problem of poor heavy metal removal effect of the filter element can be improved. The modification liquid in the modification tank can enter the interior of the coil from the inner cavity of the mounting shaft, so that the modification solution flows out from the interior of the coil to the exterior of the coil, so that the modification degree of the middle and outer parts of the non-woven fabric is kept consistent, and the non-woven fabric coil is modified uniformly and stably, thereby improving the quality of the modified non-woven fabric.

[0010] Preferably, the other end of the mounting shaft is closed.

[0011] In this scheme, the modifying liquid entering from the opening at one end of the installation shaft is prevented from directly flowing out from the other end of the installation shaft, so that the modifying liquid flows toward the central part of the coil through the first through hole, avoiding reducing the flux of the modifying liquid passing through the core of the coil per unit time, thereby enabling the coil to be fully and evenly modified.

[0012] Preferably, the tooling comprises a first clamping plate and a second clamping plate, and the first clamping plate and the second clamping plate are sleeved on the mounting shaft and used for clamping two ends of the coiled material when the coiled material is mounted on the mounting shaft.

[0013] In this solution, the first clamp and the second clamp can support the coil and prevent the coil from falling off the mounting shaft. At the same time, they can protect the non-woven fabric coil from being easily affected by the water flow of the modified solution. The coil maintains a stable state in the modification tank, thereby improving the modification quality of the non-woven fabric.

[0014] Preferably, a second through hole is formed on the first clamping plate and / or the second clamping plate.

[0015] In this solution, the above structure is adopted so that the solution entering the center of the coil can flow along the second through hole parallel to the axis of the coil, thereby facilitating the modification liquid to fill the entire coil and improving the uniformity of coil modification.

[0016] Preferably, both ends of the installation shaft are respectively sleeved with seals, the seals are arranged between the first through hole and the end of the installation shaft, and the seals are configured to fit the surface of the installation shaft and the inner wall surface of the coiled material after the coiled material is installed on the installation shaft.

[0017] In this scheme, by setting a sealing member, when the coil is installed on the mounting shaft, the liquid in the inner cavity of the mounting shaft is prevented from flowing out from the first through hole and then flowing along the outer wall surface of the mounting shaft from the end of the mounting shaft directly into the modification groove, thereby avoiding reducing the flux of the modification liquid passing through the core of the coil per unit time, and thus the coil can be fully and evenly modified.

[0018] Preferably, a first control valve is provided on the first water inlet pipe, and the first control valve is used to control the on-off of the first water inlet pipe.

[0019] Preferably, the first control valve is a solenoid valve, and the modification device further comprises a control device, which is electrically connected to the delivery pump and the first control valve respectively.

[0020] Preferably, the modification device is also provided with a second water inlet pipe and a second water outlet pipe, one end of the second water inlet pipe is connected to the outlet of the delivery pump, and the other end of the second water inlet pipe is arranged in the modification tank, one end of the second water outlet pipe is connected to the inlet of the delivery pump, and the other end of the second water outlet pipe is arranged in the modification tank for the modification tank.

[0021] Preferably, the modification device is further provided with a pure water inlet pipe, one end of which is connected to an external water source;

[0022] And / or, the modification device is further provided with a drain pipe, one end of which is connected to the modification tank.

[0023] Preferably, the modification device further comprises a heating mechanism, which is disposed in the modification tank and is used to heat the liquid in the modification tank.

[0024] The positive progressive effect of the utility model is that the utility model provides a device for modifying non-woven fabrics used in filter elements, and by fixing the non-woven fabric coil on a tooling in a modification tank for modification, a modified non-woven fabric capable of absorbing heavy metals can be prepared. The modification liquid in the modification tank can enter the interior of the coil from the inner cavity of the mounting shaft, so that the modification solution flows out from the interior of the coil to the exterior of the coil, so that the modification degree of the middle and outer parts of the non-woven fabric is kept consistent, and the non-woven fabric coil is uniformly and stably modified, thereby improving the quality of the modified non-woven fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the modification device of the utility model.

[0026] Figure 2 The partial structure diagram of the modification device of the utility model is shown in FIG. Figure 1 .

[0027] Figure 3 The partial structure diagram of the modification device of the utility model is shown in FIG. Figure 2 .

[0028] Figure 4 The partial structure diagram of the modification device of the utility model is shown in FIG. Figure 3 .

[0029] Figure 5 The structure of the modified tank of the utility model is shown in FIG. Figure 1 .

[0030] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure at AA in FIG.

[0031] Figure 7 for Figure 6 A magnified schematic diagram of point B in the middle.

[0032] Figure 8 It is a structural schematic diagram of the tooling of the utility model.

[0033] Description of reference numerals:

[0034] Modification tank 1

[0035] Tooling 2

[0036] Install shaft 210

[0037] Cavity 211

[0038] First through hole 212

[0039] Opening 213

[0040] Seal 214

[0041] First clamping plate 220

[0042] Second clamping plate 230

[0043] The second through hole 231

[0044] Delivery pump 3

[0045] First water inlet pipe 4

[0046] First control valve 410

[0047] First water outlet pipe 5

[0048] Second water inlet pipe 6

[0049] Second control valve 610

[0050] Second water outlet pipe 7

[0051] Pure water inlet pipe 8

[0052] Drain 9

[0053] Coil 10

[0054] Heating mechanism 11

[0055] Mounting Block 12

[0056] Liquid level sensor 13 DETAILED DESCRIPTION

[0057] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0058] like Figure 1-8 As shown, this embodiment provides a modification device, which includes a modification tank 1 and a tool 2, wherein the tool 2 is used to install the coil 10, and the tool 2 is arranged in the modification tank 1. The tool 2 includes a mounting shaft 210, wherein a cavity 211 is arranged in the mounting shaft 210, and a first through hole 212 communicating with the cavity 211 is opened on the circumferential surface of the mounting shaft 210, and an opening 213 is arranged at one end of the mounting shaft 210, and the opening 213 is connected with the cavity 211. The modification device also includes a delivery pump 3, a first water inlet pipe 4 and a first water outlet pipe 5, wherein one end of the first water inlet pipe 4 is connected to the outlet of the delivery pump 3, and the other end of the first water inlet pipe 4 is connected to the opening 213, and one end of the first water outlet pipe 5 is connected to the inlet of the delivery pump 3, and the other end of the first water outlet pipe 5 is arranged in the modification tank 1.

[0059] This embodiment provides a device for modifying non-woven fabrics used in filter elements. By fixing the non-woven fabric coil 10 on the tooling 2 in the modification tank 1, the non-woven fabric coil 10 is immersed in the modification liquid for modification, thereby preparing a modified non-woven fabric capable of adsorbing heavy metals. The modified non-woven fabric is applied to the filter element, thereby improving the problem of poor heavy metal removal effect of the filter element. The modification liquid in the modification tank 1 can enter the interior of the coil 10 from the inner cavity of the mounting shaft 210, so that the modification solution flows out from the interior of the coil 10 to the exterior of the coil 10, so that the modification degree of the middle and outer parts of the non-woven fabric is consistent, and the non-woven fabric coil 10 is uniformly modified, so that the outer layer modification is completed while the inner layer non-woven fabric is not modified, thereby improving the quality of the modified non-woven fabric.

[0060] In this embodiment, the other end of the installation shaft 210 is closed to prevent the modified liquid entering from the opening 213 at one end of the installation shaft 210 from directly flowing out from the other end of the installation shaft 210, so that the modified liquid flows toward the central part of the coil 10 through the first through hole 212, avoiding reducing the flux of the modified liquid passing through the core of the coil 10 per unit time, thereby enabling the coil 10 to be fully and evenly modified.

[0061] like Figure 8 As shown, both ends of the installation shaft 210 are respectively sleeved with sealing members 214, and the sealing members 214 are arranged between the first through hole 212 and the end of the installation shaft 210. The sealing members 214 are arranged to fit the surface of the installation shaft 210 and the inner wall surface of the coil 10 after the coil 10 is installed on the installation shaft 210. By arranging the sealing members 214, when the coil 10 is installed on the installation shaft 210, the liquid in the inner cavity of the installation shaft 210 is prevented from flowing out from the first through hole 212 and then flowing directly from the end of the installation shaft 210 to the modification tank 1 along the outer wall surface of the installation shaft 210, thereby avoiding reducing the flux of the modification liquid passing through the core of the coil 10 per unit time, and thus the coil 10 can be fully and evenly modified. Specifically, the sealing member 214 can be a sealing ring.

[0062] like Figure 8 As shown, the tooling 2 includes a first clamping plate 220 and a second clamping plate 230, which are sleeved on the mounting shaft 210 and are used to clamp the two ends of the coil 10 when the coil 10 is mounted on the mounting shaft 210. The end of the mounting shaft 210 is sleeved with a locking nut, which is used to fix the second clamping plate 230 on the mounting shaft 210. The first clamping plate 220 and the mounting shaft 210 are fixedly connected by bolts. The first clamping plate 220 and the second clamping plate 230 clamp the coil 10 to support the coil 10 and prevent the coil 10 from falling off the mounting shaft 210. At the same time, the non-woven fabric coil 10 can be protected from being easily affected by the water flow of the modified solution. The coil 10 maintains a stable state in the modification tank 1, thereby improving the modification quality of the non-woven fabric.

[0063] In this embodiment, a mounting seat 12 is provided at the bottom of the modified tank 1, and a part of the mounting seat 12 is fixedly connected to the bottom of the modified tank 1. The modified tank 1 has a boss portion protruding toward the inner cavity of the modified tank 1, and the fixing between the tool 2 and the modified tank 1 can be achieved by directly clamping the mounting shaft 210 on the boss portion. In this embodiment, the mounting seat 12 has a hollow inner cavity, one end of the inner cavity of the mounting seat 12 is connected to the inner cavity of the mounting shaft 210, and the other end of the mounting cavity is directly connected to the inlet of the first water inlet pipe 4, thereby achieving the connection between the first water inlet pipe 4 and the mounting shaft 210, and then realizing the circulation of the liquid in the modified tank 1.

[0064] The first clamping plate 220 and the second clamping plate 230 are provided with a second through hole 231 , so that the solution entering the center of the coil 10 can flow through the second through hole 231 in a direction parallel to the axis of the coil 10 , thereby facilitating the modification liquid to fill the entire coil 10 and improving the uniformity of modification of the coil 10 .

[0065] The second clamping plate 230 is arranged above the first clamping plate 220. A plurality of handles are arranged on the second clamping plate 230. After the modification of the coil 10 is completed, the tooling 2 and the coil 10 can be conveniently lifted out of the modification tank 1 by lifting the handles. The operation is simple and labor-saving.

[0066] In this embodiment, the modification device is further provided with a second water inlet pipe 6 and a second water outlet pipe 7, one end of the second water inlet pipe 6 is connected to the outlet of the delivery pump 3, the other end of the second water inlet pipe 6 is arranged in the modification tank 1, one end of the second water outlet pipe 7 is connected to the inlet of the delivery pump 3, and the other end of the second water outlet pipe 7 is arranged in the modification tank 1 for delivering the liquid in the modification tank 1 to the delivery pump 3. A second control valve 610 is provided on the second water inlet pipe 6, and the second control valve 610 is used to control the on-off of the second water inlet pipe 6. In this embodiment, the first water outlet pipe 5 and the second water outlet pipe 7 share the same pipe. In other embodiments, the first water outlet pipe 5 and the second water outlet pipe 7 are connected to the modification tank 1 by separate pipes. In the specific modification operation process, the non-woven fabric coil 10 is first rolled up on a hollow shaft with uniform openings for fixing, and then the hollow shaft is fixed on the tooling 2 and placed in the modification tank 1. Then pour the modified concentrated solution into the modification tank 1, and then pass pure water into the modification tank 1 to dilute the modified solution. During dilution, close the first water inlet pipe 4 and the first water outlet pipe 5, open the second water inlet pipe 6 and the second water outlet pipe 7, start the delivery pump 3, and the liquid in the modification tank 1 flows back to the modification tank 1 after passing through the second water inlet pipe 6 and the second water outlet pipe 7 for circulation dilution, so that the uneven solution bypasses the inside of the coil 10 as much as possible to avoid the uneven concentration of the solution affecting the quality of the modified non-woven fabric. After a predetermined period of circulation, the modification tank 1 is filled with the uniformly diluted modified liquid. The second water inlet pipe 6, the delivery pump 3, and the second water outlet pipe 7 are used for dilution circulation. After the solution is evenly diluted, close the second water inlet pipe 6 and the second water outlet pipe 7, and then the modification circulation is carried out through the first water inlet pipe 4, the delivery pump 3, and the second water outlet pipe 7. The diluted uniform solution flows from the inside of the coil 10 to the outside of the coil 10, thereby making the modification more uniform and the performance of the modified non-woven fabric more stable.

[0067] In other embodiments, the outlet of the first water inlet pipe is directly arranged in the modification tank 1, that is, the outlet of the first water inlet pipe is not directly connected to the opening 213 of the tooling 2, and the circulation of the modification liquid can also be achieved to modify the coil 10, but accordingly, the modification efficiency and uniformity are reduced compared with the above-mentioned method of connecting the outlet of the first water inlet pipe to the opening 213 of the tooling 2.

[0068] In other embodiments, only one set of water inlet and outlet pipes is provided, namely, the first water inlet pipe 4 and the first water outlet pipe 5. In the specific modification operation process, the non-woven fabric coil 10 is first rolled up on a polytetrafluoroethylene tube with uniform openings for fixing, and then the polytetrafluoroethylene tube is fixed on the tooling 2 and placed in the modification tank 1, and then the configured modification solution is introduced into the modification tank 1, and the first water inlet pipe 4 is connected to the opening 213 at the bottom of the mounting shaft 210, and the outlet of the first water inlet pipe 4 is connected to the inlet of the delivery pump 3, and the inlet of the first water outlet pipe 5 is connected to the outlet of the delivery pump 3, and the outlet of the first water outlet pipe 5 is set in the modification tank 1. After flowing out from the outlet of the first water inlet pipe 4.

[0069] In other embodiments, only one set of water inlet and outlet pipes is provided, namely, a first water inlet pipe 4 and a first water outlet pipe 5. During the specific modification operation, the modified concentrated solution is first poured into the modification tank 1, and then pure water is introduced into the modification tank 1 to dilute the modified solution. During dilution, the delivery pump 3 is started, and the liquid in the modification tank 1 flows back into the modification tank 1 after passing through the first water inlet pipe 4 and the first water outlet pipe 5. After a predetermined period of circulation, the modification tank 1 is filled with the uniformly diluted modified liquid. Then the delivery pump 3 is turned off, the tooling 2 is placed in the modification tank 1, and the delivery pump 3 is restarted to perform the modification operation. The above method can facilitate the mechanical control of the modification device and improve the efficiency of the modification operation.

[0070] In the present embodiment, a first control valve 410 is provided on the first water inlet pipe 4, and the first control valve 410 is used to control the on-off of the first water inlet pipe 4. The modified tank 1 is arranged in an aluminum alloy frame, and the modified tank 1 is made of PP material. The first control valve 410 is a solenoid valve, and specifically, the first control valve 410 adopts a PPH electric ball valve. The modification device also includes a control device, which is electrically connected to the delivery pump 3 and the first control valve 410 respectively. The modification device of this embodiment also includes a display screen that can display the technical parameters in the modification process in real time, which is convenient for operators to view and operate. Specifically, the controller in the control device can use a control chip that can be purchased on the market.

[0071] In other embodiments, the first control valve 410 may also be a manually controlled mechanical valve or other types of valves that can control the on-off of a pipeline.

[0072] In this embodiment, the delivery pump 3 adopts an anti-idling self-priming pump. In some embodiments, the delivery pump 3 can also adopt other pumps that can be used to deliver liquids.

[0073] In some embodiments, a delivery pump 3 may be provided on the first water inlet pipe 4 and the second water inlet pipe 6 respectively to control the first water inlet pipe 4 and the second water inlet pipe 6 respectively.

[0074] In some embodiments, electric control valves may be provided on both the first water outlet pipe 5 and the second water outlet pipe 7, and all the electric control valves and the delivery pump 3 may be electrically connected to the control device, thereby achieving more complex and higher precision control.

[0075] In some embodiments, Figure 3 As shown, the modification device is further provided with a pure water inlet pipe 8 , one end of which is connected to an external water source, and the introduction of pure water can dilute the liquid in the modification tank 1 .

[0076] In this embodiment, if Figure 3 As shown, the modification device is further provided with a drain pipe 9, one end of which is connected to the modification tank 1. Specifically, control valves are respectively provided on the drain pipe 9 and the first outlet pipe 5, and one end of the drain pipe 9 is connected to the outlet of the delivery pump 3. The delivery pump 3 is started, and the control valves on the drain pipe 9 and the first outlet pipe 5 are opened, so that the liquid in the modification tank 1 can be discharged. In some embodiments, the drain pipe 9 can be directly connected to an external wastewater collection tank, so that the liquid in the modification tank 1 can be directly discharged by opening the control valve on the drain pipe 9.

[0077] The modification device further includes a heating mechanism 11, which is disposed in the modification tank 1 and is used to heat the liquid in the modification tank 1. Specifically, the heating mechanism 11 uses a polytetrafluoroethylene heating tube, which is a spiral heating structure, thereby increasing the heating area of ​​the heating mechanism 11 and being able to quickly heat the modified solution in the modification tank 1. In this embodiment, a temperature transmitter may also be provided to monitor the temperature of the modified solution, so as to facilitate the automatic control of the modification process.

[0078] In this embodiment, a liquid level sensor 13 can also be set to monitor the liquid level in the modification tank 1. The liquid level sensor 13 is installed on the side wall of the modification tank 1, and can measure the liquid level without contact, prevent the overflow of the modification liquid and the dry burning of the heating mechanism 11, and can also facilitate the automatic control of the modification process.

[0079] The tooling 2 of this embodiment is provided with two, and accordingly, the modification device can complete the modification operation of 2 rolls of non-woven fabrics (500 meters / roll) at one time. Calculated based on 20 meters of non-woven fabrics per filter element, 50 roll filter elements can be modified at one time, greatly improving the modification efficiency of the filter element. The raw material of the non-woven fabric is one of polypropylene (PP), polysulfone (PSF), polyethersulfone (PES), polyester (PET), polystyrene (PS), polyethylene (PE), nylon (PA), acrylic fiber (AN), styrene-propylene copolymer, and styrene-maleic anhydride copolymer. The degree of automation of the modification device of this embodiment is relatively high, so that the quality of the non-woven fabric produced is stable, and the performance stability of the roll filter element made of non-woven fabric is greatly improved accordingly; at the same time, the filter element made by the above equipment has a removal rate of trace heavy metals in the water body of more than 99%. In other embodiments, the number and size of the tooling 2 can also be adjusted according to the actual working conditions such as the size of the modification tank 1 and the workload requirements.

[0080] In this embodiment, the modification solution for non-woven fabric is an aqueous solution containing an adsorbent, the temperature of the modification solution during the heat treatment process is 40-100°C, and the modification time is 5-24 hours; after the modification is completed, the non-woven fabric needs to be soaked in pure water and circulated and rinsed, the soaking and rinsing time is 0.5-6 hours, and the temperature of the pure water during rinsing is 20-60°C. In other embodiments, the heating time and heating temperature of the heating mechanism 11 of the modification device can be adjusted according to actual needs.

[0081] In other embodiments, other types of coils 10 may also be modified in the modification tank 1 .

[0082] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A modification device, characterized in that: The modification device comprises a modification tank and a tool, wherein the tool is used to install the coil, and the tool is arranged in the modification tank; The tooling comprises a mounting shaft, a cavity is provided in the mounting shaft, a first through hole communicating with the cavity is opened on the circumference of the mounting shaft, and an opening is provided at one end of the mounting shaft, the opening communicating with the cavity; The modification device also includes a delivery pump, a first water inlet pipe and a first water outlet pipe, one end of the first water inlet pipe is connected to the outlet of the delivery pump, the other end of the first water inlet pipe is communicated with the opening, one end of the first water outlet pipe is connected to the inlet of the delivery pump, and the other end of the first water outlet pipe is arranged in the modification tank for modifying the modified tank.

2. The modification device according to claim 1, characterized in that: The other end of the installation shaft is closed.

3. The modification device according to claim 1, characterized in that: The tooling includes a first clamping plate and a second clamping plate, wherein the first clamping plate and the second clamping plate are sleeved on the mounting shaft and are used for clamping two ends of the coiled material when the coiled material is mounted on the mounting shaft.

4. The modification device according to claim 3, characterized in that: A second through hole is formed on the first clamping plate and / or the second clamping plate.

5. The modification device according to claim 1, characterized in that: Both ends of the installation shaft are respectively sleeved with sealing members, the sealing members are arranged between the first through hole and the end of the installation shaft, and the sealing members are configured to fit the surface of the installation shaft and the inner wall surface of the coiled material after the coiled material is installed on the installation shaft.

6. The modification device according to claim 1, characterized in that: The first water inlet pipe is provided with a first control valve, and the first control valve is used to control the opening and closing of the first water inlet pipe.

7. The modification device according to claim 6, characterized in that: The first control valve is a solenoid valve, and the modification device further includes a control device, which is electrically connected to the delivery pump and the first control valve respectively.

8. The modification device according to claim 1, characterized in that: The modification device is also provided with a second water inlet pipe and a second water outlet pipe, one end of the second water inlet pipe is connected to the outlet of the delivery pump, and the other end of the second water inlet pipe is arranged in the modification tank, one end of the second water outlet pipe is connected to the inlet of the delivery pump, and the other end of the second water outlet pipe is arranged in the modification tank.

9. The modification device according to claim 1, characterized in that: The modification device is also provided with a pure water inlet pipe, one end of which is connected to an external water source; And / or, the modification device is further provided with a drain pipe, one end of which is connected to the modification tank.

10. The modification device according to claim 1, characterized in that: The modification device further comprises a heating mechanism, which is arranged in the modification tank and is used to heat the liquid in the modification tank.

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