CN2254368Y

CN2254368Y - Acid bath filter

Info

Publication number: CN2254368Y
Application number: CN 96208430
Authority: CN
Inventors: 史美全
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-08
Filing date: 1996-04-08
Publication date: 1997-05-21
Anticipated expiration: 2006-04-08

Abstract

The utility model relates to an acid bath filter which is a device that is particularly suitable for recovering and filtering solidified bath liquids of viscose fiber spinning filaments after acid washing of artificial fiber filaments. The acid bath filter is composed of a valve which is fixed to a filter core and a filter in a filter casing, wherein the filter is formed by covering and winding a filament curtain-shaped filter screen outside a filtering core with holes. A filament bundle can be tightly pressed outside the filtering core by utilizing pressure difference. The density of a filament bundle curtain is high, and through holes are arranged in the filtering core so that the flow quantity of the filter is large and a filtration effect is good. Meanwhile, because the filament bundle forms a loose condition during backwashing, the acid bath filter has the advantages of low requirements to a backwashing condition, easy backwashing, less water usage, high speed, thorough wash, good stain removing performance of backwashing and the capability of prolonging service life.

Description

The acid bath filter

The utility model relates to a kind of filter, the suitable especially device acid bath filter that the recovery of the viscose rayon spinning coagulation bath liquid after artificial cellosilk's pickling, filtration are used.

Pickle is diluted after the staple fibre spinning pickling, and contain many impurity, promptly waste and contaminated environment if outwell, generally all it is re-used through handling to reclaim, older processing mode is filtered for adopting the quartz sand filtration machine, but this machine volume is big, Heavy Weight, and the rate of filtration is slow, the backwash difficulty.Newer mode is for adopting microporous filter, but its manufacturing cost height, filtration yield is little relatively.

The purpose of this utility model is to provide a kind of manufacturing simple in structure, easy, low cost of manufacture, the rate of filtration fast, effective, the acid bath filter that backwash scrubbing performance is good.

The utility model be achieved in that the pickling filter by be fixed on the valve on the casing, the filter in the casing is formed, and filter is made up of the filter screen of the outer topped silk curtain shape of filter core with holes.

Fig. 1. structural representation of the present utility model.

Fig. 2. filter structure schematic representation.

Fig. 3. the filter structure schematic diagram.

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

Filter core (9) is an end opening, and there is blind hole the centre, has cannelure, bottom land that the cylindrical shape of the aperture that communicates with middle blind hole is arranged on the peripheral wall.Also can make plate shaped with filter core (9).

Filter screen (8) is made plane by polypropylene fiber tow (11), two ends have the tow (11) through, latitude direction to constitute enhancement Layer respectively, middlely is the parallel strands of no parallel (11).

Plane filter screen (8) is topped and be wrapped in outside the filter core (9), can twine 2～5 layers as required and form dense silk curtain shapes, utilizes the enhancement Layer at two ends to be pasted and fixed on the two ends of filter core (9), makes filter (3).

As required a plurality of filters (3) upward just can have been used by the base (4) that seal (10) is fixed on casing (2) bottom.

During use, needing to filter the dirty acid of using flows in the casing (2) from casing (2) right side valve (5), by filter screen (8) again the aperture from the filter core (9) flow into blind hole (utilizing pressure reduction tow (11) can closely push down filter core (9)), flow into base (4) from filter core (9) lower end, flow out through the good clean acid of purified treatment from casing (2) left side valve (7) at last and use for reclaiming.

Time is used the dirt on the long back filter screen (8), sediment need clean, at this moment can enter casing (2) from casing (2) lower end, right side valve (6) with cleaning water purification, enter from bottom to top in filter core (9) blind hole by the through hole on the base (4), rinse water outwards flows out through the aperture on it from filter core (9) is inner, filter screen (8) is cleaned, tow during backwash (11) is loose condition (of surface), therefore soon can filter screen (8) backwash is clean, and clean thoroughly, the sewage after the cleaning flows out from the valve (1) in casing (2) left side.

The utility model is compared with prior art: because the filter core periphery has aperture, hang again outward twine dense Tows curtain, its flow is big, and filtration speed is fast, and tows curtain density is big, good filtration effect. Again because of backwash The time, rinse water from inside to outside flows out, and tow is loose state, and low to the requirement of backwash condition, backwash is held Easily, water is few, speed is fast, and clean thoroughly, thereby reduce cost, prolong service life.

Claims

1. acid bath filter, by be fixed on the valve on the casing (2), the filter in the casing (2) is formed, and it is characterized in that filter (3) is made up of the filter screen (8) of the outer topped curtain shape of filter core with holes (9).

2. filter according to claim 1, it is characterized in that filter core (9) is an end opening, there is blind hole the centre, cannelure is arranged on the peripheral wall, bottom land has the cylindrical shape of the aperture that communicates with middle blind hole, filter screen (8) is made plane by polypropylene fiber tow (11), two ends have the tow (11) through, latitude direction to constitute enhancement Layer respectively, middlely is the parallel strands of no parallel (11).

3. filter according to claim 1, it is characterized in that plane filter screen (8) is topped and be wrapped in outside the filter core (9), twine 2～5 layers and form dense silk curtain shape, utilize the enhancement Layer at two ends to be pasted and fixed on the two ends of filter core (9), make filter (3).