CN213791681U

CN213791681U - Silica sol ion exchange device

Info

Publication number: CN213791681U
Application number: CN202022594982.5U
Authority: CN
Inventors: 李龙华; 裴亚利; 刘阳; 陈海海
Original assignee: Beijing Aerospace Sai De Science & Technology Development Co ltd
Current assignee: Beijing Aerospace Sai De Science & Technology Development Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-07-27
Anticipated expiration: 2030-11-11

Abstract

The utility model discloses a silica sol ion exchange device, including the exchange column barrel, set up at the inside filtration card and the ion exchange resin of barrel, the ion exchange resin sets up on filtering card upper portion, is provided with flexible ring channel on the exchange column barrel inner wall circumference, filters the card level and inlays to establish inside flexible ring channel. The flexible annular groove consists of two flexible annular belts which are horizontally fixed on the inner wall of the exchange column cylinder at intervals, and the interval between the two flexible annular belts is equal to or slightly larger than the thickness of the filtering flower plate. The flexible annular belt is bonded with the inner wall of the exchange column cylinder body. The utility model discloses a to filter the card setting inside flexible ring channel, form embedded filtration card structure, make and filter card and the rigid connection of exchange column barrel inner wall non, effectively eliminate the impact that material pressure and water pressure produced card and exchange column, ion exchange device's filter effect and extension fixture life accelerate.

Description

Silica sol ion exchange device

Technical Field

The utility model relates to a silica sol production facility field especially relates to a silica sol ion exchange device.

Background

The silica sol is a dispersion of nano-silica with the particle size of 1-100 nm in water or other organic solvents, and is widely applied to the fields of precision casting, refractory materials, coatings, textiles, precision polishing and the like.

At present, the production method of silica sol mainly comprises an ion exchange method and a silica powder hydrolysis method. The ion exchange method comprises the steps of firstly preparing 5-10% of sodium silicate into an aqueous solution by using the sodium silicate as a raw material, and then carrying out ion exchange by using cation exchange resin to remove sodium ions so as to obtain a 3-6% of silicic acid aqueous solution. Then dripping the dilute silicic acid solution into a reaction kettle, gradually polymerizing silicic acid into silicon dioxide nano particles under the alkaline condition by controlling the pH value and the temperature of the system, and then concentrating to obtain a finished product of silica sol. This method is used by many enterprises due to low raw material cost. Although the silicon powder hydrolysis method has simple production process, the adopted silicon powder raw material has higher price and higher cost.

In the existing ion exchange process, the exchange effect and exchange efficiency of the ion exchange column directly affect the product quality and production efficiency of the silica sol. At present, a filtering flower plate in an ion exchange device is welded on the inner wall of an exchange column cylinder, namely the filtering flower plate is rigidly connected with the inner wall of the exchange column cylinder. Therefore, in the repeated regeneration and use process of the exchange resin, the filtering flower plate or the exchange column can be damaged due to continuous impact of material pressure and regeneration flushing water pressure, and the ion exchange efficiency and the exchange quality are influenced.

It is therefore clear that the above-mentioned conventional silica sol ion exchange devices still have inconveniences and disadvantages in structure, method and use, and further improvement is desired. How to create a new silica sol ion exchange device, the new silica sol ion exchange device can effectively avoid the impact of water pressure and material pressure on the exchange column and the filtering flower plate, prolong the service life of the exchange column and the flower plate and improve the ion exchange efficiency.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a silica sol ion exchange device makes it can effectively avoid water pressure, material pressure to the impact of exchange column and filtration card, prolongs the life of exchange column and card, improves ion exchange efficiency to overcome current ion exchange device's not enough.

In order to solve the technical problem, the utility model provides a silica sol ion exchange device, including the exchange column barrel, set up inside filtration card and the ion exchange resin of barrel, the ion exchange resin sets up filter card upper portion, be provided with flexible ring channel on the exchange column barrel inner wall circumference, it inlays to establish to filter the card level inside the flexible ring channel.

In a further improvement, the flexible annular groove is composed of two flexible annular belts, the two flexible annular belts are horizontally fixed on the inner wall of the exchange column cylinder body at intervals, and the interval between the two flexible annular belts is equal to or slightly larger than the thickness of the filtering flower plate.

In a further improvement, the flexible annular band adopts a flexible band with an L-shaped cross section, one straight edge of the L-shaped structure is fixedly connected with the inner wall of the exchange column cylinder, and the other straight edge of the L-shaped structure is opposite to the straight edge of the other flexible band.

In a further improvement, the flexible annular band is bonded to the inner wall of the exchange column barrel.

In a further improvement, two filtering flower plates are arranged in the cylinder body, and the two filtering flower plates are respectively arranged at the upper part and the lower part of the ion exchange resin.

In a further improvement, a water cap is arranged on the filtering flower plate.

After adopting such design, the utility model discloses following advantage has at least:

1. the utility model discloses silica sol ion exchange device is through filtering the card setting inside flexible ring channel, forms embedded filtration card structure, makes and filters card and the non rigid connection of exchange column barrel inner wall, effectively eliminates the impact that material pressure and water pressure produced card and exchange column, with higher speed ion exchange device's filter effect and extension fixture life.

2. Through adopting two flexible annular belts with the cross sections of L-shaped structures, the annular belts can be tightly and fixedly connected with the exchange column cylinder body, an annular groove beneficial to embedding of the pattern plate is formed, and the sealing between the pattern plate and the annular belts is favorably enhanced.

Drawings

The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

FIG. 1 is a schematic structural diagram of a silica sol ion exchange device of the present invention.

Detailed Description

Referring to fig. 1, the silica sol ion exchange device of the present embodiment includes a cartridge 1, a filtering faceplate 2 and an ion exchange resin 3 disposed inside the cartridge 1, wherein the ion exchange resin 3 is disposed on the filtering faceplate 2. And a plurality of water caps 6 are arranged on the filtering flower plate 2.

Certainly, in the embodiment, two filtering flower plates 2 are arranged inside the cylinder 1, and the two filtering flower plates 2 are respectively arranged at the upper part and the lower part of the ion exchange resin 3, so that the materials can conveniently enter from the upper filtering flower plate and can be discharged from the lower filtering flower plate after passing through the ion exchange resin, and the ion exchange of the materials is realized; or water enters from the lower filtering flower plate and is discharged from the upper filtering flower plate after passing through the ion exchange resin, so that the flushing regeneration of the ion exchange resin is realized.

In this embodiment be provided with flexible ring channel 4 on the 1 inner wall circumference of exchange column barrel, it establishes to filter 2 levels the inside of flexible ring channel 4 forms embedded card filtration to make and filter and form non-rigid connection between card and the flexible ring channel, can effectively avoid water pressure, material pressure to the impact of exchange column and card, avoid the damage of exchange column, card.

In particular, the flexible annular groove 4 is composed of two flexible annular bands 5. The two flexible annular belts 5 are horizontally fixed on the inner wall of the exchange column cylinder body 1 at intervals, and the interval between the two flexible annular belts 5 is equal to or slightly larger than the thickness of the filtering flower plate 2, so that the fixing of the filtering flower plate 2 and the sealing between the flower plate and the annular belts can be realized.

In this embodiment, the flexible annular band 5 is a flexible band with an L-shaped cross section, one straight edge of the L-shaped structure is fixedly connected to the inner wall of the column body of the exchange column, for example, tightly adhered, and the other straight edge of the L-shaped structure is opposite to the straight edge of the other flexible band to form a flexible annular groove 4, so as to realize a non-rigid fixed structure of the embedded filter card and avoid damage to the exchange column and the card caused by rigid connection in the conventional exchange device.

The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.

Claims

1. The utility model provides a silica sol ion exchange device, includes the exchange column barrel, sets up inside filtration card and the ion exchange resin of barrel, the ion exchange resin sets up filter card upper portion, its characterized in that, be provided with flexible ring channel on the exchange column barrel inner wall circumference, it establishes to filter the card level inside the flexible ring channel.

2. The silica sol ion exchange device according to claim 1, wherein the flexible annular groove consists of two flexible annular bands fixed horizontally at a spacing on the inner wall of the cartridge body, the spacing between the two flexible annular bands being equal to or slightly greater than the thickness of the filter panel.

3. The silica sol ion exchange device according to claim 2, wherein the flexible annular band is a flexible band with an L-shaped cross section, one straight edge of the L-shaped structure is fixedly connected with the inner wall of the column body of the exchange column, and the other straight edge of the L-shaped structure is arranged opposite to the straight edge of the other flexible band.

4. The silica sol ion exchange unit of claim 3, wherein the flexible annular band is bonded to the inner wall of the exchange column housing.

5. The silica sol ion exchange device according to any one of claims 1 to 4, wherein two of the filter flower plates are provided inside the cartridge, and the two filter flower plates are provided at upper and lower portions of the ion exchange resin, respectively.

6. The silica sol ion exchange device of claim 5, wherein a water cap is provided on the filter faceplate.