CN220106045U

CN220106045U - Ion exchange filter box

Info

Publication number: CN220106045U
Application number: CN202321525814.8U
Authority: CN
Inventors: 蒋兵; 罗茂丹; 朱杰; 张红帆; 徐僳; 周俊宇; 李元东; 刘鑫; 唐远程; 曹洋
Original assignee: Sichuan Management And Monitoring Center Station Of Radioactive Environment
Current assignee: Sichuan Management And Monitoring Center Station Of Radioactive Environment
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2023-11-28
Anticipated expiration: 2033-06-14

Abstract

The utility model discloses an ion exchange filter box, which belongs to the technical field of sewage treatment equipment and particularly comprises a box body and an exchange filter unit; the exchange filter units are connected in parallel in a sliding manner in the box body; openings are formed in positions, close to the top, of two ends of the box body, and a sealing cover is mounted on the top of the box body through bolts; the exchange filter unit comprises a drawing box with an open top end; the inner side of the drawing box is divided into a buffer cavity and a plurality of ion exchange resin granule filling cavities by a plurality of supporting net plates, and a water inlet and a water outlet are respectively arranged at the position, close to the top end, of the back of the drawing box and the position, close to the bottom end, of the front of the drawing box. The utility model takes a box type structure as a main body, a plurality of installation positions are separated by the locating strips in the box type structure for installing the exchange filter unit, and the structure design of the exchange filter unit is combined, so that a tortuous sewage flow line is formed in the box type structure for prolonging the contact time between sewage and exchange materials and improving the exchange efficiency.

Description

Ion exchange filter box

Technical Field

The utility model belongs to the technical field of sewage treatment equipment, and particularly relates to an ion exchange filter box.

Background

In the radioactive sewage treatment process, an ion exchange column is mostly used as an ion exchange unit, the ion exchange material in one exchange column is usually filled singly and does not have the characteristic of multiple use, the volume of the ion exchange column for radioactive sewage treatment is usually large, a water inlet is positioned at the side of the exchange column, and wastewater directly flows into the bottom of the exchange column after entering the exchange column and being contacted with part of the ion exchange material (the ion exchange material positioned at the side of the exchange column), so that the phenomenon that the ion exchange material in the column ion exchange unit cannot be fully utilized can occur, and the heavy ion removal effect in the wastewater can not reach the expected target after the sewage is filtered by the ion exchange material.

Therefore, we design a box type ion exchange filter box for radioactive sewage treatment work.

Disclosure of Invention

The utility model aims to provide an ion exchange filter box which is used for solving the problems in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

an ion exchange filter box comprises a box body and a plurality of exchange filter units; the plurality of exchange filter units are connected in parallel in a sliding manner in an installation position formed by positioning strips in the box body; the position that box both ends are close to the top has all been seted up the trompil, and the butt joint is respectively installed to the outside of box both ends corresponding the position of trompil, wherein, the trompil at box both ends is inlet opening and apopore respectively, and all adopts rectangular hole design, the butt joint of the corresponding installation in trompil outside comprises triangle housing and butt joint pipe, and the triangle housing passes through the bolt fastening on the box and seals leak protection design between seal ring and the box, and wherein, the butt joint of installation on the inlet opening is connected with effluent water sump (not shown) through the raceway, and the booster pump (not shown) is installed for entering the inside sewage pressure boost of box in the middle section of this raceway.

A sealing cover is arranged on the top of the box body through bolts; the exchange filter unit comprises a drawing box with an open top end; the inner side of the drawing box is divided into a buffer cavity and a plurality of ion exchange resin granule filling cavities by a plurality of supporting net plates, and a water inlet and a water outlet are respectively formed in the position, close to the top end, of the back of the drawing box and the position, close to the bottom end, of the front of the drawing box; a gap is reserved between the drawing boxes, and the gap is a water diffusion cavity.

Further, the support screen plate adopts a micro-pore plate, the support screen plate is fixedly connected with the drawing box, and the adjacent support screen plates are parallel to each other.

Further, the buffer cavity is located the top of pull box, the water inlet sets up in the buffer cavity side and corresponds with the trompil position of box one end, the inboard in buffer cavity is fixed with and carries and draws the support, the delivery port is located the side in the ion exchange resin aggregate filling cavity of bottom, and installs leak protection subassembly through the bolt on the delivery port.

Further, the leak protection subassembly includes outer otter board of stainless steel, stainless steel inner otter board and filter membrane, the recess that is used for holding the inner otter board of stainless steel is offered to the one side that the pull box was pressed close to the outer otter board of stainless steel, and the recess that is used for holding the filter membrane is offered to the one side that the stainless steel inner otter board is close to the outer otter board of stainless steel, the same micropore board design of adoption of stainless steel inner otter board.

Further, the front of pull box has seted up the filler mouth, the border integrated into one piece of filler mouth has spacing sliding frame, spacing sliding frame inboard slip grafting has the shutoff board to be used for sealing the filler mouth, the back integrated into one piece of shutoff board has a filling piece with filler mouth thickness and size looks adaptation.

Further, a filter plate unit is inserted between one end, close to the water outlet hole, of the inner side of the box body and the exchange filter unit, the filter plate unit is composed of two horizontally designed base plates and a microporous filter plate vertically and fixedly arranged between the two base plates, and the microporous filter plate and the exchange filter unit are parallelly designed.

Further, the top ends of the plurality of exchange filter units are flush with the inner side of the box body, a layer of rubber pad is fixedly paved on the inner side of the sealing cover, and a rubber pad is also fixedly arranged at the bottom of the drawing box of each exchange filter unit.

Further, the ion exchange resin pellet filling chamber is internally filled with ion exchange resin pellets.

The beneficial effects are that:

the utility model takes a box type structure as a main body, a plurality of installation positions are separated by the locating strips in the box type structure for installing the exchange filter unit, and the structure design of the exchange filter unit is combined, so that a tortuous sewage flow line is formed in the box type structure for prolonging the contact time between sewage and exchange materials and improving the exchange efficiency.

In addition, through the inside design a plurality of ion exchange resin aggregate filling cavities of every exchange filtration unit, can make the inside different ion exchange material that can laminate-fill of every exchange filtration unit simultaneously, so the cooperation of a plurality of exchange filtration units of reunion uses, can make this rose box possess the characteristic that the pluralism used.

Moreover, each exchange filter unit adopts a plug-in installation design, thereby providing convenience for the maintenance of the later-stage filter box and the replacement of ion exchange materials, and further improving the practicability of the device.

Meanwhile, a buffer cavity is reserved at the top of each exchange filter unit and is used for distributing water, and the buffer cavity is combined with a tortuous flow path in the box body, so that sewage can fully contact with the exchange material when flowing through the flow path in the filter box under the action of the booster pump, and the utilization rate of the exchange material and the efficiency of ion exchange are improved.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is a second schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

FIG. 4 is a schematic diagram of an exploded structure of the exchange filter unit according to the present utility model;

FIG. 5 is a schematic diagram showing an exploded structure of the exchange filter unit according to the present utility model;

FIG. 6 is a schematic cross-sectional view of an exchange filter unit according to the present utility model;

FIG. 7 is a schematic diagram of a filter unit according to the present utility model;

FIG. 8 is a schematic diagram of a second embodiment of the present utility model.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art. It should be noted that the description of these examples is for aiding in understanding the present utility model, but is not intended to limit the present utility model.

Examples:

at present, the ion exchange equipment for treating radioactive sewage adopts columnar ion exchange columns as exchange units, and has the problems of low utilization rate of ion exchange materials, low ion exchange efficiency, single type of ion exchange resin particles and no diversified use characteristics in use, so that a box-type structure filter box with high ion exchange efficiency mainly used for radioactive sewage treatment is designed, and the specific scheme is as follows:

as shown in fig. 1, 2 and 3, the present embodiment provides an ion exchange filter box, which specifically includes a box body 1 and a plurality of exchange filter units 5; the plurality of exchange filter units 5 are connected in parallel in a sliding manner in an installation position formed by the positioning strips 3 inside the box body 1; the size of the exchange filter unit 5 is matched with the size of the installation position formed by the positioning strips 3, the positioning strips 3 and the box body 1 are integrally formed or welded in a seamless mode or are fixedly installed in a leakage-proof mode, and the exchange filter unit 5 is in a sliding insertion mode in the box body 1, so that convenience is brought to later replacement of the exchange filter unit 5.

Further, the positions of the two ends of the box body 1 close to the top are provided with the open holes 2, the two open holes 2 are respectively a water inlet hole and a water outlet hole, the positions of the outer sides of the two ends of the box body 1, corresponding to the open holes 2, are respectively provided with a butt joint 4, the butt joint 4 arranged on the water inlet hole is connected with a sewage pool through a water pipe, a booster pump is arranged in the middle section of the water pipe to boost the sewage entering the interior of the box body 1, so that sewage can smoothly exchange the filtering units 5 through filling with ion exchange resin granules, simultaneously, the buffer cavity 508 can also promote the ion exchange resin granules in each filtering unit 5 to fully contact with the sewage, so that the ion exchange resin utilization rate and the ion exchange efficiency are improved, the open holes 2 at the two ends of the box body 1 are respectively designed as rectangular holes, the butt joint 4 arranged at the outer sides of the open holes 2 are formed by a triangular housing and a butt joint pipe, and the triangular housing is fixed on the box body 1 through bolts and is designed in a sealing way between the sealing gasket and the box body 1, wherein the further explanation is needed: when one exchange filter unit 5 close to the water inlet of the box body 1 is inserted into the corresponding installation position, the back surface of the exchange filter unit 5 is attached to the inner wall of the box body 1.

Further, in order to form a complete sewage flow path inside the tank 1, a cover 8 needs to be installed on the top of the tank 1, and the cover 8 and the tank 1 can be detachably and fixedly connected by bolts.

Further, as shown in fig. 4, 5, 6, 7 and 8, in order to form a tortuous sewage flow path inside the tank 1 for prolonging the contact time between sewage and exchange material and improving the exchange efficiency, the exchange filter unit 5 comprises a drawing box 501 with an open top; the inner side of the drawing box 501 is separated into a buffer cavity 508 and a plurality of ion exchange resin granule filling cavities 509 by a plurality of supporting net plates 507, wherein the ion exchange resin granule filling cavities 509 are used for filling ion exchange resin granules, the ion exchange resin granules are preferably zirconium phosphate (nano zirconium phosphate, zirconium pyrophosphate, sodium zirconium phosphate, hydrous zirconium oxide, silver-loaded zirconium phosphate and zirconium copper phosphate), and a water inlet 502 and a water outlet 503 are respectively formed at the position close to the top end of the back of the drawing box 501 and the position at the bottom end of the front of the drawing box 501; a gap is reserved between the drawing box 501 and the drawing box 501, the gap is a water diffusion cavity 6, when sewage is treated, the sewage enters the box body 1 from a water inlet hole after being pressurized by a booster pump, and enters a buffer cavity 508 in the drawing box 501 through a water inlet 502 positioned on the side exchange filter unit 5, the sewage is transported under continuous high pressure, permeates downwards from the buffer cavity 508 until flowing out from a water outlet 503 at the side of the bottom ion exchange resin granule filling cavity 509, enters the water diffusion cavity 6, and the sewage in the water diffusion cavity 6 is gradually raised to the water inlet 502 positioned on the adjacent exchange filter unit 5 by continuous sewage transportation, and is subjected to secondary ion exchange filtration, and the circulation is performed until the sewage is discharged from a water outlet hole of the box body 1.

It should be further described that, according to the actual sewage filtering requirement, a plurality of filter tanks may be connected in series through pipelines, so that in order to ensure the water filtering efficiency, a relay type supercharging device is required to be designed on the connecting pipeline between two filter tanks, or a water outlet hole on the terminal tank 1 is connected with a negative pressure pumping and draining system (the negative pressure pumping and draining system adopts the current conventional vacuum pumping and draining equipment).

As shown in fig. 4 and 6, in order to realize the diversified use of the exchange filter box and prevent the different particles from being mixed with each other, the supporting net plate 507 adopts a micro-porous plate, so that the water filtering effect can be maintained, meanwhile, each ion exchange resin particle filling cavity 509 can be separated, the supporting net plate 507 is fixedly connected with the drawing box 501, and the adjacent supporting net plates 507 are parallel to each other.

Further, as shown in fig. 4 and 6, a buffer chamber 508 is provided at the top end position of the drawer 501 to prevent water flow from directly striking the ion exchange pellets, a water inlet 502 is provided at the side of the buffer chamber 508 corresponding to the position of the opening 2 at one end of the casing 1, and a water outlet 503 is provided at the side of the ion exchange resin pellet filling chamber 509 at the bottom layer.

Further, as shown in fig. 4, 5, 6, 7, and 8, in order to facilitate maintenance in the later stage of the filter box, a lifting bracket 511 is fixed to the inner side of the buffer chamber 508, and after the cover 8 is detached by a worker, the exchange filter unit 5 can be taken out from the box 1 by the lifting bracket 511.

Further, as shown in fig. 4, 5, 6, 7, and 8, a leakage preventing unit 504 is attached to the water outlet 503 of the exchange filter unit 5 by bolts so as to prevent the ion exchange resin pellets from being flushed out of the ion exchange resin pellet filling chamber 509 by sewage.

Specifically, the leak-proof assembly 504 includes a stainless steel outer screen 541, a stainless steel inner screen 542, and a filter membrane 543, where a groove for accommodating the stainless steel inner screen 542 is formed on a side of the stainless steel outer screen 541 close to the drawing box 501, and a groove for accommodating the filter membrane 543 is formed on a side of the stainless steel inner screen 542 close to the stainless steel outer screen 541, and the stainless steel inner screen 542 is also designed as a micro-porous plate.

In order to ensure that ion exchange resin granules are convenient to replace when the filter box is maintained, a filler opening 505 is formed in the front surface of the drawing box 501, a limit sliding frame 506 is integrally formed at the edge of the filler opening 505, a blocking plate 510 is slidably inserted into the inner side of the limit sliding frame 506 to block the filler opening 505, and in order to prevent the upper and lower layers of ion exchange resin granules from being mixed, a filling block matched with the thickness and the size of the filler opening 505 is integrally formed in the back surface of the blocking plate 510 to fill a gap caused by the thickness of the drawing box 501.

According to the actual use demand, the diversified use effect of the filter box is enriched, a filter plate unit 7 can be inserted between one end, close to the water outlet hole, of the inner side of the box body 1 and the exchange filter unit 5, the filter plate unit 7 is composed of two horizontally designed base plates and vertically and fixedly arranged microporous filter plates between the two base plates, and the microporous filter plates are parallel to the exchange filter unit 5, wherein the microporous filter plates are preferably ceramic filter plates.

In order to ensure that sewage flows in the tank 1 according to a set water flow path, the top end of each exchange filter unit 5 is flush with the inner side of the tank 1 and is at the same height, a layer of rubber pad (the rubber pad is detachably and fixedly connected with the sealing cover 8 so as to facilitate later maintenance) is paved on the inner side of the sealing cover 8, a rubber pad is also fixed at the bottom of the drawing box 501 of each exchange filter unit 5, and when the sealing cover 8 completely seals the main tank 1, the rubber pad on the sealing cover 8 presses down the exchange filter unit 5, so that a sealing state is formed between the top and the bottom of the exchange filter unit 5 and the tank 1 and the sealing cover 8, and sewage can only flow according to the set path after entering the tank 1.

Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An ion exchange filter box is characterized by comprising a box body (1) and a plurality of exchange filter units (5);

the plurality of exchange filter units (5) are connected in parallel in a sliding manner in an installation position formed by the positioning strips (3) inside the box body (1); the two ends of the box body (1) are provided with openings (2) near the top, the outer sides of the two ends of the box body (1) are respectively provided with a butt joint (4) corresponding to the positions of the openings (2), and the top of the box body (1) is provided with a sealing cover (8) through bolts;

the exchange filter unit (5) comprises a drawing box (501) with an open top end; the inner side of the drawing box (501) is divided into a buffer cavity (508) and a plurality of ion exchange resin granule filling cavities (509) through a plurality of supporting net plates (507), and a water inlet (502) and a water outlet (503) are respectively formed in the position, close to the top end, of the back surface of the drawing box (501) and the bottom end of the front surface of the drawing box (501);

a gap is reserved between the drawing box (501) and the drawing box (501), and the gap is a water diffusion cavity (6).

2. An ion exchange filter box according to claim 1, wherein the support mesh plates (507) are micro-porous plates, and the support mesh plates (507) are fixedly connected with the drawing box (501), and adjacent support mesh plates (507) are parallel to each other.

3. The ion exchange filter box according to claim 1, wherein the buffer chamber (508) is located at the topmost end of the drawing box (501), the water inlet (502) is disposed at the side surface of the buffer chamber (508) and corresponds to the position of the opening (2) at one end of the box body (1), the lifting bracket (511) is fixed at the inner side of the buffer chamber (508), the water outlet (503) is located at the side surface of the ion exchange resin granule filling chamber (509) at the bottommost layer, and the water outlet (503) is provided with the leakage-proof component (504) through bolts.

4. An ion exchange filter box according to claim 3, wherein the leakage prevention component (504) comprises a stainless steel outer screen plate (541), a stainless steel inner screen plate (542) and a filter membrane (543), the stainless steel outer screen plate (541) is provided with a groove for accommodating the stainless steel inner screen plate (542) near one side of the drawing box (501), and the stainless steel inner screen plate (542) is provided with a groove for accommodating the filter membrane (543) near one side of the stainless steel outer screen plate (541), and the stainless steel inner screen plate (542) is also designed by a micro-pore plate.

5. The ion exchange filter box according to claim 1, wherein a packing opening (505) is formed in the front face of the drawing box (501), a limit sliding frame (506) is integrally formed at the edge of the packing opening (505), a plugging plate (510) is slidably inserted into the inner side of the limit sliding frame (506) to be used for sealing the packing opening (505), and a filling block matched with the thickness and the size of the packing opening (505) is integrally formed in the back face of the plugging plate (510).

6. The ion exchange filter tank according to claim 1, wherein the openings (2) at two ends of the tank body (1) are respectively a water inlet hole and a water outlet hole, and are respectively rectangular hole designs, the butt joint (4) correspondingly installed at the outer side of the opening (2) is composed of a triangular housing and a butt joint pipe, the triangular housing is fixed on the tank body (1) through bolts and is in sealing and leakage-proof design with the tank body (1) through a sealing gasket, the butt joint (4) installed on the water inlet hole is connected with a sewage pool through a water pipe, and a booster pump is installed at the middle section of the water pipe to boost sewage entering the tank body (1).

7. The ion exchange filter box according to claim 6, wherein a filter plate unit (7) is inserted between one end, close to the water outlet, of the inner side of the box body (1) and the exchange filter unit (5), the filter plate unit (7) is composed of two horizontally designed base plates and vertically and fixedly arranged microporous filter plates between the two base plates, and the microporous filter plates are parallel to the exchange filter unit (5).

8. An ion exchange filter box according to claim 1, wherein the top ends of a plurality of the exchange filter units (5) are flush with the inner side of the box body (1), a layer of rubber pad is fixedly paved on the inner side of the sealing cover (8), and a rubber pad is fixedly arranged at the bottom of the drawing box (501) of each exchange filter unit (5).

9. An ion exchange filter box according to claim 1, wherein the interior of the ion exchange resin pellet filling chamber (509) is for filling ion exchange resin pellets.