CN102828373A - Washing-free process of printed carpets - Google Patents
Washing-free process of printed carpets Download PDFInfo
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- CN102828373A CN102828373A CN2011102837892A CN201110283789A CN102828373A CN 102828373 A CN102828373 A CN 102828373A CN 2011102837892 A CN2011102837892 A CN 2011102837892A CN 201110283789 A CN201110283789 A CN 201110283789A CN 102828373 A CN102828373 A CN 102828373A
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Abstract
The invention discloses a printed carpet production process and in particular provides a washing-free process of printed carpets. The washing-free process is characterized in that 200-mesh filter screens are added at a water inlet and a water outlet of a water tank for washing respectively in the existing washing process for printed carpet production; water solution in the water tank is pumped out by a circulating pump and then is sent back to the water tank; and the water tank is filled with water solution to form internal circulation mainly to filter the impurities out of the water tank. The process has the following beneficial effects: the design is reasonable; the sewage generated in printed carpet production in the prior art can be substantially reduced and even reduced to zero, thus reaching the aim of zero discharge and reducing environmental pollution; and meanwhile, water for production is saved greatly and the production cost is reduced.
Description
Technical field
The present invention relates to the drugget production technology, refer in particular to a kind of drugget and exempt from washing process.
Background technology
Carpet is with natural fabric or chemical synthetic fiber class raw materials such as cotton, fiber crops, hair, silk, grass, manually or mechanical technology is knitted, synthetic tuft or shop, the ground that is formed by weaving application.It is to have one of traditional industrial art category of long history in the world wide.Be covered in the ground of dwelling house, hotel, gymnasium, show room, vehicle, boats and ships, aircraft etc., the noise of minimizing, heat insulation and decorative effect are arranged.
Along with being widely used of carpet, the kind of carpet also emerges in an endless stream, and the production technology of carpet also improves constantly.Drugget changes traditional first yarn dyeing line, is woven into the operation of carpet then with machine, but is woven into the openpore blanket earlier, through machine pattern is imprinted on the carpet then.
Drugget is divided into the garden net, plain net, and jet printing.Factors such as garden net and plain net are little because of its flexibility ratio, and figure and change color are not convenient are progressively eliminated by market; And the main flow of existing market is the jet printing carpet, can make the company of spray-jet printing machine at present, and the whole world has only two families; One family is an Austrian Qi Ma company, and also having a family is Hangzhou Hong Hua Digit, and this company began to research and develop spray-jet printing machine before 5 years; Nantong letter ancient cooking vessel Fabritex S.r.l just plays an active part in and cooperates the research and development of Hangzhou Hong Hua Digit from beginning; From the industrial requirements aspect of carpet omnibearing support is provided, makes Hangzhou Hong Hua Digit produce first in 2005 and spray digital decorating machine, this machine is used by Nantong letter ancient cooking vessel Fabritex S.r.l; Hangzhou Hong Hua Digit has produced at least 20 production lines at present; Sell to all over the world, obtained gratifying achievement, promoted the development of jet printing carpet.
The stained area of drugget is much smaller than dyeing, therefore can save a large amount of dyestuffs, has also made contribution for the minimizing discharging certainly, but not basic removal solid waste and sewage discharge.But in order further to improve environmental requirement; Reduce discharging; Nantong letter ancient cooking vessel Fabritex S.r.l develops revolutionary new technology finally through technological innovation and tackling key problem, makes the discharging of sewage discharge and solidfied material reduce near zero; Realize the purpose of " zero-emission ", these new technologies and the technological innovation and the industrial structure optimization that will promote the carpet manufacture industry.
COD (Chemical Oxygen Demand COD), is meant under certain condition, when potassium dichromate oxidation is handled, and the mass concentration of the oxygen that the dissolved matter in the water sample is corresponding with the potassium bichromate salt that suspended matter is consumed.Mg/litre (mg/L) with oxygen is represented.COD has reflected the degree that polluted by reducing substances.Reducing substances comprises organic matter, nitrite, ferrous salt, sulfide etc. in the water.It is very general that water is polluted by organic matter, and therefore, COD is also as one of index of organic matter relative amount, but can only reflect can be oxidized organic matter pollute, can not reflect the pollution situation of polycyclic aromatic hydrocarbon, PCB etc.COD is one of index of China's enforcement total emission volumn control.COD numerical value is more little, explains that water is contaminated light more.
In the existing drugget production technology, the allotment raw material of mill base mainly is dyestuff and thickener, is high concentration compression magma when buying, and these two kinds of raw material all are high COD materials; Constituted the arch-criminal who pollutes, the COD of dyestuff is near 1000 mg/L, and wherein the dyestuff more than 95% is absorbed in the decatize process of carpet, and the thickener main component is an acrylic acid; Be the carrier of vapour steaming colour fixing, magma COD is near 1,600,000 mg/L; Changing into white slurry back COD is 45,000 mg/L, be made into mill base after, COD becomes 26; 000 mg/L, mill base in process of production, though through the absorption of carpet; The useless slurry COD that discharges is still up to 20,000 mg/L, and this is the key of whole wastewater treatment.The effect of thickener is to stop the color diffusion, reduces the fixation time, and after the carpet fixation, the mission of thickener has also just been accomplished, and the whole variation process of fixation is physical change.The carpet fixation goes out after the steam box mouth, and the slurries that will stay on the carpet with sucking pump siphon away, and forms the useless slurry of high viscosity, brings great burden to sewage disposal.And existing thickener all is high COD, and low COD thickener was once attempted to develop by Bayer A.G, to reduce the COD discharging, still not success.
After the useless thickener of carpet is siphoned away; Also have the residual slurries of part on the blanket face; Need wash, as shown in Figure 1, whole water-washing process is: running water injects tank → carpet after tank → formation waste water → discharging → injection running water from the beginning; So move in circles, this is an outer circulation of not sealing.After the washing, form the band pulp waste water, enter wastewater disposal basin and handle, the COD of waste water is up to 4,000 mg/L; Handle through decolouring, fall COD, flocculation etc., cost is very high; After finishing dealing with, just can reach COD is about 400 g/L, can carry out 3 grades of dischargings, is handled once more by Sewage Plant.
Can find out to have only the material of the high COD of part to be adsorbed in process of production from above technology, and a large amount of COD waste liquids that exceeds standard need be through handling discharging; Environment is produced certain negative effect,, COD is all adsorbed if we can find a solution; Perhaps dissolve; Perhaps recycle, do not produce the COD of discharging, this will be a very significant thing.
Summary of the invention
The object of the invention is to provide a kind of drugget to exempt from washing process, realizes sewage " zero-emission ".
Technical solution of the present invention is following:
In the washing process that existing drugget is produced, add 200 mesh filter screens respectively at water inlet and the delivery port washed with tank.The aqueous solution in the said tank is extracted out through circulating pump, sends tank again back to, fills with water solution in the tank, and circulation in forming, main purpose is the impurity in the filtering trough.
Said technology is specially: in tank, add flocculant, like aluminium sulfide, iron sulfide etc., form the aqueous solution; The carpet that has raffinate is after inhaling sizing device suction slurry, and carpet passes through tank under the traction of roller, after the residual thickener of carpet runs into the aqueous solution that has flocculant; Form solids at once; After part slipped into tank, through the loop solution water pipe of flowing through in interior the cycling through, solids was stayed on the filter screen in the tank.
The adding proportion of said flocculant is 1/500 (V/V), and said flocculant is aluminium sulfide, iron sulfide etc.
Behind the said carpet effluent trough, via the dehumidifier of vacuum dehumidifier apparatus, the moisture content of being extracted out by vavuum pump is back in the tank, contains the stereoplasm thing of part in this moisture content, removes through internal circulation filtering.
Said carpet is after empty dehumidifier apparatus dehumidifier, and its moisture content is 40% (the carpet moisture content is to obtain through the method for weighing, and is that moisture carpet and water-free carpet weighed moisture content=(weight in wet base-dry weight)/dry weight * 100 with the dehumidifier front and back respectively).
The flocculant in the said tank and the aqueous solution add through quantitative automatic adding set.
The present invention is reasonable in design, and through the present invention, producing a large amount of sewage in the existing drugget production can reduce significantly, even is zero, has realized the purpose of " zero-emission ", has reduced environmental pollution.Meanwhile, practice thrift a large amount of industrial waters, saved production cost.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is further specified.
Fig. 1 is a washing process flow chart in the existing production technology of drugget.
Fig. 2 is that drugget of the present invention is exempted from the washing process flow chart.
Among the figure: 1, tank; 2, inhale sizing device; 3, first filter screen; 4, second filter screen; 5, circulating pump; 6, water pipe; 7, first roller; 8, second roller; 9, the 3rd roller; 10, the 4th roller; 11, the 5th roller; 12, the 6th roller; 13, vacuum dehumidifier apparatus; 14, quantitative automatic adding set.
The specific embodiment
As shown in Figure 2, produce in the washing process at drugget, add 200 orders, first filter screen 3 and second filter screen 4 respectively at water inlet and the delivery port washed with tank 1.The aqueous solution in the said tank 1 is extracted out through circulating pump 5, sends tank 1 again back to, fills with water solution in the tank 1, and circulation in forming, main purpose is the impurity in the filtering trough 1.
Said technology is specially: in tank 1, add flocculant; The carpet that has raffinate is after inhaling sizing device 2 suction slurries; Carpet under the traction of first roller 7, second roller 8, the 3rd roller 9, the 4th roller 10, the 5th roller 11, the 6th roller 12 through tank 1; After the residual thickener of carpet runs into the aqueous solution that has flocculant, form solids at once, after part slips into tank 1; Through the interior loop solution water pipe 6 of flowing through, solids is stayed on first filter screen 3 and second filter screen 4 in the tank 1.
The adding proportion of said flocculant is 1/500 (V/V), and said flocculant is aluminium sulfide, iron sulfide etc.
Behind the said carpet effluent trough 1, via 13 dehumidifiers of vacuum dehumidifier apparatus, the moisture content of being extracted out by vavuum pump is back in the tank 1, contains the stereoplasm thing of part in this moisture content, removes through internal circulation filtering.
Said carpet is after empty dehumidifier apparatus 13 dehumidifiers, and its moisture content is 40% (the carpet moisture content is to obtain through the method for weighing, and is that moisture carpet and water-free carpet weighed moisture content=(weight in wet base-dry weight)/dry weight * 100 with the dehumidifier front and back respectively).
The flocculant and the aqueous solution in the said tank 1 add through quantitative automatic adding set 14.
Use above-mentioned technology, day output is according to 4000m
2Carpet calculates, and exempts from the comparison of washing process and existing technology, its pollutant day discharge capacity as shown in the table:
| Discharge pollutants | Exempt from washing process | Existing technology | After the existing PROCESS FOR TREATMENT * |
| Waste water | 0 | 120 tons | 120 tons |
| The COD material | 0 | 600 tons | 48 tons |
* waste water enters treatment tank, filters then, flocculates, physics and chemical reactions such as deposition and decomposition, makes the COD of waste water be reduced to below the 500mg/L, belongs to three grades of dischargings of country, and these waste water enter sewage treatment plant, are for further processing.
Can find out from last table,, can make to produce a large amount of sewage in the existing drugget production and can reduce significantly, even be zero, realize the purpose of " zero-emission ", reduce environmental pollution with exempting from washing process.Meanwhile, practice thrift a large amount of industrial waters, saved production cost.
Claims (7)
1. a drugget is exempted from washing process, it is characterized in that, produces in the washing process at drugget; Water inlet and delivery port washing with tank (1) add first filter screen (3) and second filter screen (4) respectively; The aqueous solution in the tank (1) is extracted out through circulating pump (5), sends tank (1) again back to, the interior fills with water solution of tank (1); Circulation in forming, main purpose is the impurity in the filtering trough (1).
2. drugget as claimed in claim 1 is exempted from washing process; It is characterized in that; Specifically comprise: in tank (1), add flocculant, form the aqueous solution, the carpet that has raffinate is after inhaling sizing device (2) suction slurry; Carpet passes through tank (1) under the traction of first roller (7), second roller (8), the 3rd roller (9), the 4th roller (10), the 5th roller (11), the 6th roller (12); After the residual thickener of carpet runs into the aqueous solution that has flocculant, form solids at once, after part slips into tank (1); Through the interior loop solution water pipe (6) of flowing through, solids is stayed on first filter screen (3) and second filter screen (4) in the tank (1).
3. drugget as claimed in claim 1 is exempted from washing process, it is characterized in that, the order number of said first filter screen (3) and second filter screen (4) is more than or equal to 200 orders.
4. drugget as claimed in claim 2 is exempted from washing process, it is characterized in that, the adding proportion of said flocculant is 1/500 (V/V).
5. drugget as claimed in claim 2 is exempted from washing process, it is characterized in that, behind the said carpet effluent trough (1); Via vacuum dehumidifier apparatus (13) dehumidifier; The moisture content of being extracted out by vavuum pump is back in the tank (1), contains the stereoplasm thing of part in this moisture content, removes through internal circulation filtering.
6. drugget as claimed in claim 2 is exempted from washing process, it is characterized in that, said carpet is after vacuum dehumidifier apparatus (13) dehumidifier, and its moisture content is 40%.
7. drugget as claimed in claim 2 is exempted from washing process, it is characterized in that the flocculant and the aqueous solution in the said tank (1) add through quantitative automatic adding set (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110283789.2A CN102828373B (en) | 2011-09-22 | 2011-09-22 | Washing-free process of printed carpets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110283789.2A CN102828373B (en) | 2011-09-22 | 2011-09-22 | Washing-free process of printed carpets |
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| Publication Number | Publication Date |
|---|---|
| CN102828373A true CN102828373A (en) | 2012-12-19 |
| CN102828373B CN102828373B (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110283789.2A Active CN102828373B (en) | 2011-09-22 | 2011-09-22 | Washing-free process of printed carpets |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630306A (en) * | 2017-11-06 | 2018-01-26 | 郑州华德地毯集团有限公司 | Carpet printing water washing device and its washing process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2163374A1 (en) * | 1971-12-21 | 1973-06-28 | Eugen Bellmann Gmbh Maschinenf | Dyeing dewatering and drying of finished textiles - wool or flocculated synthetic material in a single treatment vessel |
| CN102020392A (en) * | 2009-09-17 | 2011-04-20 | 朱华土 | Dyeing reclaimed water recycling process and equipment |
| CA2787137A1 (en) * | 2010-01-18 | 2011-07-21 | Invista Technologies S.A.R.L. | Processes to clean and recycle carpet fiber and thermoplastics made from such processes |
-
2011
- 2011-09-22 CN CN201110283789.2A patent/CN102828373B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2163374A1 (en) * | 1971-12-21 | 1973-06-28 | Eugen Bellmann Gmbh Maschinenf | Dyeing dewatering and drying of finished textiles - wool or flocculated synthetic material in a single treatment vessel |
| CN102020392A (en) * | 2009-09-17 | 2011-04-20 | 朱华土 | Dyeing reclaimed water recycling process and equipment |
| CA2787137A1 (en) * | 2010-01-18 | 2011-07-21 | Invista Technologies S.A.R.L. | Processes to clean and recycle carpet fiber and thermoplastics made from such processes |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630306A (en) * | 2017-11-06 | 2018-01-26 | 郑州华德地毯集团有限公司 | Carpet printing water washing device and its washing process |
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|---|---|
| CN102828373B (en) | 2014-11-12 |
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Address after: No.16 Xinxing Road, Nantong Economic and Technological Development Zone, Jiangsu Province, 226000 Patentee after: Jiangsu Hongcheng ground material (Group) Co.,Ltd. Address before: No.16 Xinxing Road, Nantong Economic and Technological Development Zone, Jiangsu Province, 226009 Patentee before: NANTONG HOMEDEC WEIYA CARPET Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20221020 Address after: 226000 South Jiangda Road and East Haier Road, Tongzhou Bay Jianghai Linkage Development Demonstration Zone, Nantong City, Jiangsu Province Patentee after: Jiangsu Hongding Carpet Co.,Ltd. Address before: No.16 Xinxing Road, Nantong Economic and Technological Development Zone, Jiangsu Province, 226000 Patentee before: Jiangsu Hongcheng ground material (Group) Co.,Ltd. |
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| TR01 | Transfer of patent right |