CN212188111U

CN212188111U - Extension liquid filtering system

Info

Publication number: CN212188111U
Application number: CN202020120839.XU
Authority: CN
Inventors: 魏明辉; 张涛
Original assignee: Hefei Sanlipu Optoelectronics Technology Co ltd
Current assignee: Hefei Sanlipu Optoelectronics Technology Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-12-22
Anticipated expiration: 2030-01-19

Abstract

The utility model discloses an extension liquid filtering system, the pipeline of the system comprises a pipeline I, the pipeline I is connected with an extension liquid storage tank, a pump I is arranged on the pipeline I, the pump I is connected with a pipeline III and a pipeline IV through a pipeline II, the pipeline IV is connected with a resin filter, the resin filter is connected with a pipeline V, the pipeline V is respectively connected with a pipeline VI and a pipeline VII, the pipeline VI is connected with a pipeline VI, the pipeline VII is connected with a liquid inlet of a security filter, a pipeline eighth is connected with a pipeline VIII, the pipeline ninth is connected with the pipeline Ten, the pipeline Ten is connected with a cleaning liquid tank, and a pump II is arranged on the pipeline Ten, the utility model overcomes the defects of the prior art, the system can filter extension liquid, and the adsorption and the removal of micromolecule PVA, dust, impurities and the like in the extension liquid are realized through the resin in the resin filter, and the system can realize regeneration of the resin in the resin filter, and realize reuse of the resin.

Description

Extension liquid filtering system

Technical Field

The utility model relates to a polaroid production is with extending liquid processing technology field specifically belongs to an extension liquid filtration system.

Background

In the production process of the polarizer, operations such as swelling, dyeing, stretching and cleaning of a PVA raw material are required, in the processes, the PVA is treated by mainly using an aqueous solution containing chemical substances, and micromolecular PVA, dust, impurities and the like on the surface of a PVA film can enter the aqueous solution in the treatment process, so that pollutants are attached to the surface of the PVA film for subsequent treatment, and the yield of the polarizer of a final product is greatly reduced. Among them, the aqueous solution used in the stretching process is generally called as an extension solution, and the cleanliness of the extension solution directly affects the final quality of the polarizer, so that it is necessary to filter and purify the extension solution used for stretching the PVA film by using a resin to remove impurities such as small molecular PVA and dust. After the resin is used for a period of time, the adsorption of the resin reaches saturation, and the resin cannot be used for treating the extension liquid continuously, so that the resin needs to be regenerated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an extension liquid filtration system has overcome prior art's not enough.

In order to solve the above problems, the utility model adopts the following technical proposal:

an extension liquid filtering system comprises a pump, a pipeline, a resin filter, a security filter and a cleaning liquid tank, wherein the pump comprises a pump I and a pump II, the pump I and the pump II are powered by an external power supply, the pipeline comprises a pipeline I, the pipeline I is connected with an extension liquid storage tank, the pipeline I is provided with the pump I, the pump I is connected with a tee joint through a pipeline II, the tee joint is respectively connected with a pipeline III and a pipeline IV, the pipeline II and the pipeline III are respectively provided with a valve II and a valve III, the pipeline IV is connected with a liquid inlet of the resin filter, a liquid outlet of the resin filter is connected with a pipeline V, the pipeline V is respectively connected with a pipeline VI and a pipeline VII through a tee joint, the pipeline VI and the pipeline VII are respectively provided with a valve IV and a valve V, the pipeline VI is connected with a pipeline VI, the device comprises a pipeline seven, a liquid outlet of a security filter, a pipeline eight, a pipeline nine, a valve six and a valve seven, wherein the pipeline seven is connected with the liquid inlet of the security filter, the liquid outlet of the security filter is connected with the pipeline eight, the pipeline eight and the pipeline nine are respectively provided with the valve six and the valve seven, the pipeline nine is connected with a pipeline ten, the pipeline ten is connected with a cleaning liquid tank, and the pipeline ten is provided with a pump two.

Furthermore, the first pipeline is also connected with a standby pipeline, and a first valve is installed on the standby pipeline.

Furthermore, the first pump and the second pump are corrosion-resistant pumps.

Furthermore, D101 macroporous adsorption resin is filled in the resin filter.

Further, the liquid inlet of the resin filter is positioned at the top of the resin filter, and the liquid outlet of the resin filter is positioned at the bottom of the resin filter.

Furthermore, the liquid inlet of the security filter is positioned at the bottom of the security filter, and the liquid outlet of the security filter is positioned at the top of the security filter.

Compared with the prior art, the utility model discloses an implement the effect as follows: the system can filter the extension liquid, and realize the adsorption and removal of micromolecule PVA, dust, impurities and the like in the extension liquid through the resin in the resin filter.

Drawings

Fig. 1 is a schematic diagram of the system of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation to be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figure 1, an extend liquid filtration system, including the pump, the pipeline, resin filter 13, safety filter 14 and washing cistern 16, adopt the wedge filter core in the safety filter 14, the pump includes pump one 12 and pump two 15, pump one 12 and pump two 15 are corrosion-resistant pump, pump one 12 and pump two 15 are supplied power by external power supply, the pipeline includes pipeline one 1, pipeline one 1 is connected with extension liquid storage tank 20, still be connected with reserve pipeline on the pipeline one 1, install valve one 21 on the reserve pipeline, install pump one 12 on the pipeline one 1, pump one 12 passes through pipeline two 2 and tee junction, the tee junction is connected with pipeline three 3 and pipeline four 4 respectively, install valve two 22 and valve three 23 on pipeline two 2 and the pipeline three 3 respectively, pipeline three 3 is the waste liquid discharge pipeline.

The fourth pipeline 4 is connected with a liquid inlet of the resin filter 13, a liquid inlet of the resin filter 13 is positioned at the top of the resin filter 13, a liquid outlet of the resin filter 13 is positioned at the bottom of the resin filter 13, D101 macroporous adsorption resin is filled in the resin filter 13, the liquid outlet of the resin filter 13 is connected with the fifth pipeline 5, the fifth pipeline 5 is respectively connected with the sixth pipeline 6 and the seventh pipeline 7 through a tee joint, the sixth pipeline 6 and the seventh pipeline 7 are respectively provided with a fourth valve 24 and a fifth valve 25, the sixth pipeline 6 is connected with the tenth pipeline 10, the seventh pipeline 7 is connected with a liquid inlet of the security filter 14, a liquid inlet of the security filter 14 is positioned at the bottom of the security filter 14, a liquid outlet of the security filter 14 is positioned at the top of the security filter 14, the eighth pipeline 8 is connected with a liquid outlet of the security filter 14, the ninth pipeline 9 is also connected with a ninth pipeline 9, the eighth, the nine 9 and ten 10 pipelines are connected, the ten 10 pipeline is connected with a cleaning liquid tank 16, one of hot water at 90 ℃, 1mol/L hydrochloric acid solution or 1mol/L NaOH solution can be filled in the cleaning liquid tank 16 according to the cleaning requirement, and the ten 10 pipeline is provided with a second pump 15.

When the system is used, the first valve 21, the third valve 23, the fourth valve 24, the sixth valve 26 and the second pump 15 are closed, the first pump 12, the second valve 22, the fifth valve 25 and the seventh valve 27 are opened, the extension liquid enters the first pump 12 from the first pipeline 1, the first pump 12 inputs the extension liquid into the resin filter 13 in a pressurizing mode, small molecular PVA, dust, impurities and the like in the extension liquid are adsorbed and removed, the extension liquid flows out of the liquid outlet of the resin filter 13 after being filtered by the resin filter 13 and enters the security filter 14 along the fifth pipeline 5 and the seventh pipeline 7, the security filter 14 prevents resin particles in the resin filter 13 from leaking from the resin filter 13 and entering the filtered extension liquid, the filtered extension liquid is prevented from being mixed with the resin particles, and the extension liquid flows out of the eighth pipeline 8 after being filtered by the security filter 14, and the filtered extension liquid is obtained.

When the resin in the resin filter 13 of the system is saturated, the first pump 12, the second valve 22 and the fifth valve 25 are closed, the third valve 23, the fourth valve 24 and the second pump 15 are opened, the second pump 15 sends the cleaning liquid in the cleaning liquid tank 16 into the resin filter 13 from the liquid outlet at the bottom of the resin filter 13 through the tenth pipeline 10, the sixth pipeline 6 and the fifth pipeline 5, the resin in the resin filter 13 is cleaned, then the cleaned cleaning liquid is discharged into the third pipeline 3 from the fourth pipeline 4 and is discharged from the system, so that the resin in the resin filter 13 is regenerated, and the resin is reused.

When the cartridge filter 14 needs to be cleaned, when forward cleaning is adopted, the first pump 12, the second valve 22, the third valve 23 and the sixth valve 26 are closed, the fifth valve 25, the fourth valve 24, the seventh valve 27 and the second pump 15 are opened, the second pump 15 sends cleaning liquid in the cleaning liquid tank 16 into the cartridge filter 14 from the liquid inlet of the cartridge filter 14 through the tenth pipeline 10, the sixth pipeline 6 and the seventh pipeline 7, the cartridge filter 14 is cleaned, and then the cleaned cleaning liquid is discharged into the eighth pipeline 8 from the cartridge filter 14 and is discharged from the system.

When the system adopts reverse cleaning, the first pump 12, the second valve 22, the fourth valve 24 and the seventh valve 27 are closed, the third valve 23, the fifth valve 25, the sixth valve 26 and the second pump 15 are opened, the second pump 15 sends the cleaning liquid in the cleaning liquid tank 16 into the cartridge filter 14 from the liquid outlet of the cartridge filter 14 through the tenth pipeline 10, the ninth pipeline 9 and the eighth pipeline 8, the cartridge filter 14 is cleaned, then the cleaned cleaning liquid is discharged into the seventh pipeline 7 from the cartridge filter 14, and is sent into the resin filter 13 from the liquid outlet at the bottom of the resin filter 13 through the fifth pipeline 5, the resin in the resin filter 13 is cleaned, and then the cleaned cleaning liquid is discharged into the third pipeline 3 from the fourth pipeline 4 and is discharged out of the system, so that the cartridge filter 14 is cleaned, the resin in the resin filter 13 is regenerated, and the resin is reused.

In addition, it should be noted that the system can be used in two sets in parallel, or in multiple sets in parallel, when in use, the first pipeline 1 is used for inputting the extension liquid in the extension liquid storage tank 20 into the system, and when the resin adsorption in the resin filter 13 of the system reaches saturation, the first valve 21 can be opened, the second valve 22 can be closed, and the first pump 12 can be opened to enable the extension liquid to enter a spare pipeline so as to enter another set of the system.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an extension liquid filtration system, includes pump, pipeline, resin filter, cartridge filter and washing cistern, the pump include pump one and pump two, pump one and pump two by external power supply, its characterized in that: the pipeline comprises a pipeline I, the pipeline I is connected with an extension liquid storage tank, a pump I is installed on the pipeline I, the pump I is connected with a tee joint through a pipeline II, the tee joint is respectively connected with a pipeline III and a pipeline IV, a valve II and a valve III are respectively installed on the pipeline II and the pipeline III, the pipeline IV is connected with a liquid inlet of a resin filter, a pipeline V is connected with a liquid outlet of the resin filter, the pipeline V is respectively connected with a pipeline VI and a pipeline VII through a tee joint, the pipeline VI and the pipeline VII are respectively provided with a valve IV and a valve V, the pipeline VI is connected with a pipeline VI, the pipeline VII is connected with a liquid inlet of a security filter, a liquid outlet of the security filter is connected with a pipeline eight, the pipeline eight is also connected with a pipeline nine, the pipeline eight and the pipeline nine are also respectively provided with a valve VI and a valve VII, the pipeline nine is connected with a pipeline ten, the pipeline ten is connected with a cleaning liquid tank, and a pump two is installed on the pipeline ten.

2. The extension liquid filtering system according to claim 1, wherein: the first pipeline is further connected with a standby pipeline, and a first valve is installed on the standby pipeline.

3. The extension liquid filtering system according to claim 1, wherein: the first pump and the second pump are corrosion-resistant pumps.

4. The extension liquid filtering system according to claim 1, wherein: the resin filter is internally provided with D101 macroporous adsorption resin.

5. The extension liquid filtering system according to claim 1, wherein: the liquid inlet of the resin filter is positioned at the top of the resin filter, and the liquid outlet of the resin filter is positioned at the bottom of the resin filter.

6. The extension liquid filtering system according to claim 1, wherein: the liquid inlet of the security filter is positioned at the bottom of the security filter, and the liquid outlet of the security filter is positioned at the top of the security filter.