CN212915201U

CN212915201U - Preparation system of hydrophilic modified filter membrane

Info

Publication number: CN212915201U
Application number: CN202021451805.5U
Authority: CN
Inventors: 白静娜; 韩永良; 石江波; 杨荔枝; 戚鹏程; 杨继成
Original assignee: Tianjin Hanqing Film Technology Co ltd
Current assignee: Tianjin Hanqing Film Technology Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-04-09
Anticipated expiration: 2030-07-22

Abstract

The utility model belongs to the technical field of the filter membrane production technique and specifically relates to a preparation system of hydrophilic modified filter membrane, it includes spinning kettle, woven tube unwinding device, the spinning jet, the coagulating bath basin, the water bath, hydrophilic modified tank and winding up groove, the spinning feed liquid has been placed in spinning kettle, spinning kettle's the place ahead is equipped with the spinning jet admittedly, the deionized water has been put in the coagulating bath basin, the water bath is adorned admittedly in coagulating bath basin the place ahead, hydrophilic modified tank is adorned in the place ahead of water bath basin admittedly, hydrophilic agent has been put in the hydrophilic modified tank, the interior carry over pinch rolls of going up and lower carry over pinch rolls of installing of hydrophilic modified tank, go up the carry over pinch rolls and lower carry over pinch rolls crisscross setting, the place ahead in hydrophilic modified tank admittedly, it has deionized water and installs the carry over pinch rolls in the winding up. The device provided by the utility model simple structure, it is with low costs, simplify hydrophilic modification step, the filter membrane of formation has higher hydrophilicity and the structure is even.

Description

Preparation system of hydrophilic modified filter membrane

Technical Field

The utility model relates to a filter membrane production technical field especially relates to a preparation system of hydrophilic modified filter membrane.

Background

The microporous filter membrane used for water treatment is divided into two types of hydrophilicity and hydrophobicity, the hydrophilic filter membrane needs to be sprayed with spinning feed liquid on a supporting material in the production process, then an additive and a solvent in the feed liquid exchange with water generating substances, micropores are formed on the surface of the membrane, and the hydrophilic modified filter membrane is formed by online coating of a hydrophilic agent solution. The common preparation equipment comprises a spinning solution spinning device, a solidifying device and a water bath rinsing device, the spinning process and the device can not carry out surface modification on the hollow fiber membrane yarn, and after spinning is finished, post-treatment soaking is carried out to finish the hydrophilic modification step, so that the production period is prolonged, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a hydrophilic modified filter membrane preparation system that simple structure, with low costs, easy operation, the even and permanent hydrophilic of hydrophilic layer coating of formation is provided.

The utility model discloses a realize through following technical scheme:

a preparation system of a hydrophilic modified filter membrane comprises a spinning kettle, a woven tube unreeling device, a spinning nozzle, a coagulation bath tank, a water bath tank, a hydrophilic modification tank and a reeling tank, wherein a spinning material liquid is placed in the spinning kettle, the spinning nozzle is fixedly arranged in front of the spinning kettle, the spinning kettle is communicated with the spinning nozzle through a spinning pipeline, the woven tube unreeling device is arranged above the spinning nozzle, the coagulation bath tank is fixedly arranged below the spinning nozzle, deionized water is stored in the coagulation bath tank, traction rollers are respectively arranged at the inner lower part of the coagulation bath tank and the top of the coagulation bath tank, the water bath tank is fixedly arranged in front of the coagulation bath tank, deionized water is stored in the water bath tank, the traction rollers are respectively arranged at the front side and the rear side of the top of the water bath tank and the front side and the rear side of the inner bottom of the water bath tank, the hydrophilic modification tank is fixedly arranged in, traction rollers are installed on the front side and the rear side of the top of the hydrophilic modification groove, an upper row of traction rollers and a lower row of traction rollers are installed in the hydrophilic modification groove, the upper row of traction rollers and the lower row of traction rollers are arranged in a staggered mode, the winding groove is fixedly installed in front of the hydrophilic modification groove, and deionized water and the winding rollers are installed in the winding groove.

Furthermore, a metering pump is arranged on a spinning pipeline between the spinning kettle and the spinning nozzle.

Beneficial effects of the utility model

The utility model discloses a preparation system of hydrophilic modified filter membrane of protection, after weaving the pipe spraying and go up the spinning feed liquid, through coagulating bath groove, additive, solvent etc. take place the interdiffusion with water, form the micropore on the surface, the preliminary solidification shaping of membrane silk, then reentrant water bath inslot makes the further solidification of enhancement mode hollow fiber membrane accomplish, accomplishes the interdiffusion process.

During the weaving pipe entered into the hydrophilic modification groove of putting hydrophilic agent aqueous solution through the carry over pinch rolls, through multiunit carry over pinch rolls, made hydrophilic agent and membrane silk surface fully contact, through the form of physics combination, the surface of weaving the pipe is adhered to fast in short time, forms hydrophilic modified filter membrane, then twines on the wind-up roll, has not only saved the use amount of hydrophilic agent, and the cost is reduced, and the comparison of coating is more even moreover.

Deionized water is placed in the winding groove, and the materials can wash away additives, solvents and hydrophilic agents remained on the surface in the winding process, so that not only is washing equipment saved, but also the occupied area is reduced.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

in the figure, 1, a spinning kettle, 2, a braided tube unreeling device, 3, a spinning nozzle, 4, a metering pump, 5, a coagulation bath water tank, 6, a drawing roller, 7, a water bath tank, 8, a hydrophilic modification tank, 9, a lower row of drawing rollers, 10, an upper row of drawing rollers, 11, a winding tank and 12, winding rollers are arranged.

Detailed Description

A preparation system of a hydrophilic modified filter membrane comprises a spinning kettle 1, a woven tube unreeling device 2, a spinning nozzle 3, a coagulation bath water tank 5, a water bath 7, a hydrophilic modified tank 8 and a winding tank 11.

Spinning feed liquid is placed in the spinning kettle, a spinning nozzle is fixedly installed in front of the spinning kettle, the spinning kettle is communicated with the spinning nozzle through a spinning pipeline, a weaving tube unreeling device is installed above the spinning nozzle, and after the weaving tube is unreeled through the unreeling device, the spinning nozzle aims at the weaving tube to spout the spinning feed liquid when passing through the spinning nozzle.

The coagulating bath water tank is fixedly arranged below the spinning nozzle, deionized water is stored in the coagulating bath water tank, the traction rollers 6 are respectively arranged at the inner lower part of the coagulating bath water tank and the top part of the coagulating bath water tank, the water bath tank is fixedly arranged in front of the coagulating bath water tank, deionized water is stored in the water bath tank, the front side and the rear side of the top part of the water bath tank and the front side and the rear side of the inner bottom part of the water bath tank are respectively provided with the traction rollers, and the water bath tank is arranged to enable the braided tube to pass through the coagulating bath water tank, so that an additive, a solvent and water in a spinning material liquid are subjected to primary exchange and then enter the water bath tank, a double diffusion process is.

The hydrophilic modification groove is fixedly arranged in front of the water bath groove, a hydrophilic agent is stored in the hydrophilic modification groove, the front side and the rear side of the top of the hydrophilic modification groove are provided with the traction rollers, the hydrophilic modification groove is internally provided with the upper traction roller 10 and the lower traction roller 9, the upper traction roller and the lower traction roller are arranged in a staggered mode, the braided tube enters the hydrophilic modification groove with hydrophilic agent water solution through the traction rollers, the hydrophilic agent is fully contacted with the surface of the membrane wire through a plurality of groups of traction rollers, and the hydrophilic agent is quickly adhered to the surface of the braided tube in a short time through a physical combination mode to form a hydrophilic modification filter membrane and then is wound on the winding roller. The upper row of traction rollers and the lower row of traction rollers are installed in the hydrophilic modification groove, the upper row of traction rollers and the lower row of traction rollers are arranged in a staggered mode, the braided tube is wound between the upper row of traction rollers and the lower row of traction rollers in an S-shaped mode in sequence, the hydrophilic agent can be made to fully infiltrate the braided tube, the length of the hydrophilic modification groove is shortened, and the occupied area is reduced.

The winding groove is fixedly arranged in front of the hydrophilic modification groove, deionized water is stored in the winding groove, the winding roller 12 is arranged in the winding groove, and the spinning material liquid and the hydrophilic agent remained on the surface can be washed away by the material in the winding process, so that washing equipment is saved, and the occupied area is reduced.

Furthermore, a metering pump 4 is arranged on a spinning pipeline between the spinning kettle and the spinning nozzle, so that the spinning feed liquid sprayed by the spinning nozzle can be effectively metered and controlled, the spraying effect is ensured, and the cost can be effectively controlled.

During the preparation of hydrophilic modified filter membrane, the weaving pipe is discharged through the discharging device, and then passes through the coagulating bath tank, the additive, the solvent and the like are subjected to double diffusion with water, micropores are formed on the surface, the membrane filaments are primarily cured and formed, and then enter the water bath tank, so that the reinforced hollow fiber membrane is further cured and completed, the double diffusion process is completed, the uniform micropores are formed on the surface of the weaving pipe, then the membrane filaments enter the hydrophilic modified tank, and through the infiltration mode, the hydrophilic agent is adhered to the surface of the weaving pipe in a physical combination mode to form the hydrophilic modified filter membrane, and then the hydrophilic modified filter membrane is wound on the winding roller.

The system not only can form uniform micropores on the surface of the braided tube, but also saves the using amount of the hydrophilic agent, reduces the cost and ensures uniform coating of the hydrophilic agent. Meanwhile, the upper row of traction rollers and the lower row of traction rollers are installed in the hydrophilic modification groove, the upper row of traction rollers and the lower row of traction rollers are arranged in a staggered mode, the braided tube is wound between the upper row of traction rollers and the lower row of traction rollers in an S-shaped mode in sequence, the hydrophilic agent can be made to fully infiltrate the braided tube, the length of the hydrophilic modification groove is shortened, and the occupied area is reduced.

To sum up, the utility model provides a pair of preparation system of hydrophilic modified filter membrane, simple structure, it is with low costs, area is little, and the micropore of formation is even and guarantees the hydrophilic performance of filter membrane.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A preparation system of a hydrophilic modified filter membrane is characterized by comprising a spinning kettle, a woven tube unreeling device, a spinning nozzle, a coagulation bath water tank, a water bath, a hydrophilic modification tank and a reeling tank, wherein spinning feed liquid is placed in the spinning kettle, the spinning nozzle is fixedly installed in front of the spinning kettle, the spinning kettle is communicated with the spinning nozzle through a spinning pipeline, the woven tube unreeling device is installed above the spinning nozzle, the coagulation bath water tank is fixedly installed below the spinning nozzle, deionized water is stored in the coagulation bath water tank, traction rollers are respectively installed at the inner lower part of the coagulation bath water tank and the top of the coagulation bath water tank, the water bath is fixedly installed in front of the coagulation bath water tank, deionized water is stored in the water bath, the traction rollers are respectively installed at the front side and the rear side of the top of the water bath and the front side and the rear side of the inner bottom of the water bath, the, the water solution of a hydrophilic agent is stored in the hydrophilic modification groove, the front side and the rear side of the top of the hydrophilic modification groove are provided with drawing rollers, the hydrophilic modification groove is internally provided with an upper row of drawing rollers and a lower row of drawing rollers, the upper row of drawing rollers and the lower row of drawing rollers are arranged in a staggered manner, the winding groove is fixedly arranged in front of the hydrophilic modification groove, and the winding groove is stored with deionized water and is provided with a winding roller.

2. The system for preparing a hydrophilic modified filter membrane according to claim 1, wherein a metering pump is installed on the spinning pipe between the spinning kettle and the spinneret.