CN103264040B - A kind of technique utilizing waste filter bag to manufacture sheet material - Google Patents

Abstract

The invention provides a kind of waste filter bag that utilizes and manufacture the technique of sheet material, the main process of this technique is: the recovery of filter bag, classification, cleaning and oven dry, stripping, mixing, combing, lapping, acupuncture or water thorn, pressurization pressing plate, cooling, trimming finished product.Beneficial effect of the present invention is: waste and old filtrate is made sheet material, can be used for the sheet material in room decorating, automotive trim or train casing, this sheet material tensile strength is high, good stability of the dimension, the noise in space can be reduced, save a large amount of industrial chemicals, realize recycling of product, with low cost.

Description

A kind of technique utilizing waste filter bag to manufacture sheet material

Technical field

The present invention relates to a kind of used bag-type dusting filter bag and water filtering system filter bag, particularly a kind of technique making sheet material for the used bag-type dusting filter bag of field of Environment Protection and the recovery of water filtering system filter bag.

Background technology

The sack cleaner history of existing over one hundred year so far, its maximum advantage is exactly that efficiency of dust collection can up to more than 99.99%, and concentration of emission can reach below 10mg/m3, and its classification efficiency is also very high, also there is good arresting efficiency to the fine particles of less than 2.5 μm, be therefore widely used.The annual growth rate of world's filter material reaches 7% so far, and the growth rate of China far more than 7%.Between 2000 ~ 2010 years 10 years, the use amount of China's filter material is approximately 9,000 ten thousand m ², the quantity of the waste and old filter bag of the breakage of eliminating every year and accumulating over the years is also astronomical figure.Because these filter bag majorities are the manufactures of synthesising fibre raw material, biological degradability is poor, is difficult to be degraded at occurring in nature; Again owing to there is no effective method of disposal at present, after arbitrarily stacking, become again new pollution sources.Therefore, how effectively to dispose damaged waste and old filter bag and become current problem in the urgent need to address.

Summary of the invention

Dirty to the secondary of environment for solving a large amount of used waste filter bag, the invention provides a kind of technique utilizing waste filter bag to manufacture sheet material; Comprise the following steps:

(1) classify by the serviceability temperature of waste filter bag raw material: 22 ~ 140 DEG C be middle normal temperature filtrate, more than 140 DEG C be high-temperature filter material; Middle normal temperature filtrate fiber usually used is polyster fibre or acrylic fiber or polypropylene fiber; High-temperature filter material fiber used is PPS fiber or aramid fiber or glass fibre or basalt fibre or PTFE fiber or P84 fiber or polysulphonamide fiber;

(2) other filtrate of same class put into cleaning machine cleaning, dry; The process of drying is made up of 6 baking ovens, and speed is 6-8m/min, and temperature is 210-250 DEG C, and the time is 6-10 minute;

(3) filtrate after oven dry is put into opening apparatus peel separation, and taxonomic revision;

(4) the complete fiber of stripping classification is put into respectively carding machine combing even;

(5) by same class fiber good for combing, mix according to the ratio between 1:1 ~ 1:9, after mixing, then carry out combing;

(6) composite fibre that combing is good is put into lapping machine and carry out lapping;

(7) fleece after lapping is reinforced in needing machine or spun-laced machine;

(8) the complete cloth of reinforcing is put into trigger squeeze, carry out hot pressing 6-8 minute hot pressing temperature 230 ~ 260 DEG C, after cooling, make sheet material.

Beneficial effect of the present invention is: waste and old filtrate is made sheet material, can be used for the sheet material in room decorating, automotive trim or train casing, this sheet material tensile strength is high, good stability of the dimension, the noise in space can be reduced, save a large amount of industrial chemicals, realize recycling of product, with low cost.

Accompanying drawing explanation

Accompanying drawing 1 is process flow diagram of the present invention.

Detailed description of the invention

Embodiment:

Adopt terylene and acrylic to be raw material in normal temperature waste filter bag during the present invention adopts, two kinds of filtrates are after cleaning, and put into baking oven respectively and dry, the technological parameter of its drying course is in table 1:

The technological parameter of table 1 drying course

Utilize opening apparatus to carry out stripping respectively to the waste and old acrylic of drying and terylene material and obtain acrylic fiber and polyster fibre, polyster fibre and acrylic fiber are carried out mixing combing according to weight 1:3, form composite fibre, the fiber of mixing is made single layer fibre net through lapping, and wherein fibroreticulate individual layer grammes per square metre is: 50 ~ 200g/m ², net width is 3000-3500mm, then carries out the cross lapping of 8-12 time, carries out acupuncture or the reinforcing of water thorn to the fleece completed.Wherein Needle-Punched Process Parameters in table 2. water jet process parameter in table 3.

Non-weaving cloth after acupuncture or water thorn is entered trigger squeeze carry out adding pressboard, wherein sheeting process parameter is in table 4.

Rim charge is fallen to the plate cutting made, after bundle is good, is placed into finished product district.

This non-woven sheet Stability Analysis of Structures, brute force is high, heat resistance good, fire resistance is strong, surfacing, soft, the sheet material in room decorating, automotive trim or train casing can be widely used in, the noise in space can be reduced, and save a large amount of industrial chemicals, realize recycling of product, with low cost.

Claims (1)

1. utilize waste filter bag to manufacture a technique for sheet material, comprise the following steps:

(1) classify by the serviceability temperature of waste filter bag raw material: 22 ~ 140 DEG C be middle normal temperature filtrate, more than 140 DEG C be high-temperature filter material; Middle normal temperature filtrate fiber usually used is polyster fibre or acrylic fiber or polypropylene fiber; High-temperature filter material fiber used is PPS fiber or aramid fiber or glass fibre or basalt fibre or PTFE fiber or P84 fiber or polysulphonamide fiber;

(2) other filtrate of same class put into cleaning machine cleaning, dry; The process of drying is made up of 6 baking ovens, and speed is 6-8m/min, and temperature is 210-250 DEG C, and the time is 6-10 minute;

(3) filtrate after oven dry is put into opening apparatus peel separation, and taxonomic revision;

(4) the complete fiber of stripping classification is put into respectively carding machine combing even;

(5) by same class fiber good for combing, the ratio between 1:1 ~ 1:9 mixes, and after mixing, then carries out combing;

(6) composite fibre that combing is good is put into lapping machine and carry out lapping;

(7) fleece after lapping is reinforced in needing machine or spun-laced machine;

(8) the complete cloth of reinforcing is put into trigger squeeze, carry out hot pressing 6-8 minute hot pressing temperature 230 ~ 260 DEG C, after cooling, make sheet material.