CN204198542U - A kind of evaporation of the catalyzed oxidation for yarn-dyed fabric mercerized waste alkali liquid recovery system - Google Patents
A kind of evaporation of the catalyzed oxidation for yarn-dyed fabric mercerized waste alkali liquid recovery system Download PDFInfo
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- CN204198542U CN204198542U CN201420621437.2U CN201420621437U CN204198542U CN 204198542 U CN204198542 U CN 204198542U CN 201420621437 U CN201420621437 U CN 201420621437U CN 204198542 U CN204198542 U CN 204198542U
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Abstract
The utility model discloses a kind of catalyzed oxidation for yarn-dyed fabric mercerized waste alkali liquid evaporation recovery system, comprise weak lye filter and collector unit, alkali liquor concentration evaporation and collector unit and high alkali liquid catalyzed oxidation decolouring unit; Weak lye filters and collector unit comprises the self-cleaning filter A and light alkali holding tank that are connected successively by pipeline; Alkali liquor concentration evaporation and collector unit comprise flash-boiling evaporators etc., light alkali conveying pump outlet is connected in the casing of flash-boiling evaporators by pipeline, after flash-boiling evaporators process, form many waste lye regenerations, be worth the extraction of component, reclaim and utilization process route, waste lye regeneration wherein adopts high alkali liquid catalyzed oxidation decoloration process.By improving hydraulics, augmenting response area, introducing the process means such as catalytic oxidation, the processes such as precipitation, filtration, catalyzed oxidation, evaporation are combined, has that dust removal rate is high, decolorizing efficiency is high, vaporization efficiency is high, the feature of simple and convenient operation and maintenance.
Description
Technical field
The utility model belongs to textile printing and dyeing liquid waste treatment system, particularly relates to the removal of impurities of a kind of yarn-dyed fabric mercerized waste alkali liquid, decolouring and evaporation recovery system.
Background technology
The universals of mercerized waste alkali liquid are that waste liquid impurity suspension object height, colourity are dark, hardly degraded organic substance content high, mercerising sig water waste water results from mercerizing process, meeting clear water is to fabric washing after sodium hydroxide dope soaks for fabric, and the waste water after washing is sig water waste water.Fiber in waste lye and colourity are the principal elements recycled affecting alkali lye, are the main objects that scavenging process is separated.Fiber is mainly derived from fabric, and fiber in fabric can be caused when fabric soaks in soda-lye to be mixed in sodium hydroxide dope, and when cleaning fabric, fiber can be mixed in sig water simultaneously.Colourity results from the auxiliary agents such as the white dyes added in mercerizing process, and white dyes is the major cause producing sig water colourity.At present, the mercerized waste alkali liquid of most textile printing and dyeing enterprises is based on end treatment, subsequent disposal can use a large amount of hydrochloric acid, this not only becomes the heavy burden of enterprise economic growth, and some callable resources are not utilized effectively, cause enterprise's raw materials consumption to be increased, product cost increases, economic benefit declines, thus affects enthusiasm and the initiative of enterprise governance pollution.
At present, the conventional recovery methods of mercerized waste alkali liquid first carried out with physical method the impurity suspended substance that filters to remove in waste water, then decoloured by absorption and oxidation technology, finally adopt evaporation technique to carry out concentrated reuse.Adsorption bleaching technology many employings gac that traditional chemical recovery system equipment adopts decolours to waste lye, this technique decolorizing effect is obvious, but decolorization can produce a large amount of useless charcoals and cannot process, system is separately had to adopt conventional oxidation technology to decolour to waste lye, this technique has certain effect to waste lye decolouring, but reclaims alkali lye colourity and throw away and cannot meet the mercerising requirement of mercerization to special color cloth.Because above-mentioned reason, so fail to obtain on mercerized waste alkali liquid reclaims to widely apply.
Utility model content
The purpose of this utility model is shortcoming, the particularly weak point of existing absorption and oxidative decoloration method and apparatus in order to overcome existing high chroma difficult degradation waste lye recovery technology.By improving hydraulics, augmenting response area, improving oxidation susceptibility, introducing the method for design such as catalytic oxidation, the processes such as precipitation, filtration, catalyzed oxidation, evaporation are combined, designs as Process ba-sis that a kind of dust removal rate is high, decolorizing efficiency is high, vaporization efficiency is high, the mercerized waste alkali liquid recovery system of simple and convenient operation and maintenance.
In order to solve the problems of the technologies described above, a kind of catalyzed oxidation for the yarn-dyed fabric mercerized waste alkali liquid evaporation recovery system that the utility model provides, comprises weak lye and filters and collector unit, alkali liquor concentration evaporation and collector unit and high alkali liquid catalyzed oxidation decolouring unit; Described weak lye filters and collector unit comprises the self-cleaning filter A connected successively by pipeline, light alkali holding tank and light alkali transferpump; Described light alkali holding tank is provided with thermometer and liquidometer; Described alkali liquor concentration evaporation and collector unit comprise flash-boiling evaporators, condensate water pot, chilled water tank, water of condensation transferpump, water coolant transferpump, raw vapor condensation water pot, raw steam condensate transferpump, described flash-boiling evaporators comprises casing, is provided with concentrated base pond, raw steam condenser pipe, raw vapor condensation water collecting tank, interchanger, the cooling water circulation pipeline be connected with interchanger, equilibration tube and condensation water collection tank in casing; Described light alkali conveying pump outlet is connected to by pipeline in the casing of described flash-boiling evaporators, and described condensate water pot is connected with the outlet of described condensation water collection tank; Described chilled water tank is connected with cooling water circulation pipeline; Described raw vapor condensation water pot and being connected with the outlet of raw vapor condensation water collecting tank; The outlet of described condensate water pot, described chilled water tank and described raw vapor condensation water pot is connected with transferpump and transfer line in turn respectively separately; The outlet in described concentrated base pond is connected to described high alkali liquid catalyzed oxidation decolouring unit; Described high alkali liquid catalyzed oxidation decolouring unit comprises self-cleaning filter B, concentrated base tundish, concentrated base transferpump A, plate-type heat exchanger, ozone oxidation tower, concentrated base transferpump B, activated charcoal filter, cartridge filter, concentrated base reuse tank and the concentrated base transferpump C that the outlet from described concentrated base pond is connected successively by pipeline; Described ozone oxidation tower is connected with ozone transfer line, and described ozone transfer line is provided with under meter; All pipelines are provided with valve respectively.
Further, described light alkali holding tank comprises the tank body of multiple series connection, and each tank body is provided with thermometer and liquidometer respectively.
Compared with prior art, the beneficial effects of the utility model are:
(1) in the catalyzed oxidation evaporation recovery system of the utility model waste lye, waste lye in treating processes, water of condensation, raw steam condensate can all be produced by separate-recycling, and the water coolant realization in treating processes recycles.
(2) adopt catalytic ozonation technology, realize the catalyzed oxidation under basic conditions, waste lye colourity is efficiently removed, meet completely the various yarn-dyed fabric of mercerization particularly light cloth to the water quality requirement of alkali lye.
(3) adopt High-rate sedimentation filtering technique, reduce the fouling tendency of vapo(u)rization system equipment, inhibit catalytic oxidation tank foamed phenomenon, improve the efficiency of whole system.
(4) adopt expander technology, reduce System steam consumption, realize the continuous seepage of system.
(5) the catalyzed oxidation evaporation recovery system of the utility model waste lye achieves the regeneration of mercerization waste lye and is worth the extraction of component, recovery and recycle.
Accompanying drawing explanation
Fig. 1 is the catalyzed oxidation evaporation recovery system structural representation of the utility model waste lye, in figure: 1-self-cleaning filter A, the light alkali holding tank of 2-, the light alkali transferpump of 3-, 4-flash-boiling evaporators, 5-condensate water pot, 6-water of condensation transferpump, the raw vapor condensation water pot of 7-, the raw steam condensate transferpump of 8-, 9-chilled water tank, 10-water coolant transferpump, 11-self-cleaning filter B, 12-concentrated base tundish, 13-concentrated base transferpump A, 14-plate-type heat exchanger, 15-ozone oxidation tower, 16-concentrated base transferpump B, 17-activated charcoal filter, 18-cartridge filter, 19-concentrated base reuse tank, 20-concentrated base transferpump C.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical solutions of the utility model are described in further detail.
As shown in Figure 1, a kind of catalyzed oxidation for yarn-dyed fabric mercerized waste alkali liquid of the utility model evaporation recovery system, comprising: weak lye filters and collector unit, alkali liquor concentration evaporation and collector unit and high alkali liquid catalyzed oxidation decolouring unit.
Described weak lye filters and collector unit comprises the self-cleaning filter A1 connected successively by pipeline, light alkali holding tank 2 and light alkali transferpump 3; Described light alkali holding tank 2 is provided with thermometer and liquidometer.Light alkali holding tank 2 wherein preferably comprises the tank body of multiple series connection, and is provided with thermometer and liquidometer respectively on each tank body.
Described alkali liquor concentration evaporation and collector unit comprise flash-boiling evaporators 4, condensate water pot 5, chilled water tank 9, water of condensation transferpump 6, water coolant transferpump 10, raw vapor condensation water pot 7, raw steam condensate transferpump 8, described flash-boiling evaporators 4 comprises casing, is provided with concentrated base pond, raw steam condenser pipe, raw vapor condensation water collecting tank, interchanger, the cooling water circulation pipeline be connected with interchanger, equilibration tube and condensation water collection tank in casing; The outlet of described light alkali transferpump 3 is connected to by pipeline in the casing of described flash-boiling evaporators 4, and described condensate water pot 5 is connected with the outlet of described condensation water collection tank; Described chilled water tank 9 is connected with cooling water circulation pipeline; Described raw vapor condensation water pot 7 and being connected with the outlet of raw vapor condensation water collecting tank; The outlet of described condensate water pot 5, described chilled water tank 9 and described raw vapor condensation water pot 7 is connected with transferpump and transfer line in turn respectively separately; The outlet in described concentrated base pond is connected to described high alkali liquid catalyzed oxidation decolouring unit.
Described high alkali liquid catalyzed oxidation decolouring unit comprises self-cleaning filter B11, concentrated base tundish 12, concentrated base transferpump A13, plate-type heat exchanger 14, ozone oxidation tower 15, concentrated base transferpump B16, activated charcoal filter 17, cartridge filter 18, concentrated base reuse tank 19 and the concentrated base transferpump C 20 that the outlet from described concentrated base pond is connected successively by pipeline; Described ozone oxidation tower 15 is connected with ozone transfer line, and described ozone transfer line is provided with under meter.
All pipelines are provided with valve respectively.
Flesh and blood of the present utility model is that weak lye wherein filters and collector unit, alkali liquor concentration evaporation and collector unit and high alkali liquid catalyzed oxidation decolouring unit are connected by light alkali holding tank 2, concentrated base tundish 12 and concentrated base reuse tank 19.Three unit can independently or continuously run as required.
The working process of a kind of evaporation of the catalyzed oxidation for yarn-dyed fabric mercerized waste alkali liquid of the utility model recovery system is: the light alkali wasteliquid that finishing plant of yarn-dyed weaving factory produces is filtered and collector unit by the weak lye in constant-pressure liquid supply input native system, first, light alkali wasteliquid carries out pre-treatment by 1mm stainless steel self-cleaning filter A 1, after filtration treatment, the flcos such as the lint in alkali lye are effectively removed, and treatment solution after filtering enters light alkali tank and collects 2.This light alkali holding tank can adopt multiple tank bodies of series connection to form, waste lye enters into multiple light alkali holding tank after filtering, light alkali holding tank is provided with water outlet, this water outlet is connected by light alkali transferpump 3, thus carries weak lye to the flash-boiling evaporators 4 in alkali liquor concentration evaporation and collector unit.Each light alkali holding tank being provided with thermometer respectively, to show the temperature of weak lye in each tank, tank body arranging liquidometer, for controlling the start and stop of light alkali transferpump 3 simultaneously.The weak lye that light alkali holding tank 2 is stored is transported to flash-boiling evaporators through weak lye transferpump 3 and concentrates, weak lye is after flash-boiling evaporators 4 evaporates, the removal process of follow-up high alkali liquid is as shown in the D road operational path in Fig. 1: the alkali lye after concentrated enters 1mm stainless steel self-cleaning filter B 11, and the treatment solution through filtering further enters concentrated base tundish 12 and collects.The high alkali liquid stored in concentrated base tundish 12 is transported to plate-type heat exchanger 14 pairs of heat alkali liquids in workshop when canful through high alkali liquid transferpump A and lowers the temperature, alkali lye after plate-type heat exchanger 14 is lowered the temperature enters in outdoor ozone oxidation tower 15, high alkali liquid carries out decoloring reaction in ozone oxidation tower 15, high alkali liquid after decolouring squeezes into activated charcoal filter 17 and cartridge filter 18 successively by concentrated base transferpump B, high alkali liquid is after ozone oxidation tower 15 is decoloured, enter activated charcoal filter 17 to carry out remaining look and remove reaction, containing a certain amount of flco and activated carbon grain in the high alkali liquid that gac decolours further, cartridge filter 18 can reach the removal to flco in high alkali liquid and activated carbon grain, finally, enter concentrated base reuse tank 19 to collect, finally be transported to workshop reuse by recovery concentrated base pump 20.
The utility model recovery system can carry out extracting, reclaiming and recycle according to value component simultaneously.A road in Fig. 1 shows the recycle of required water coolant in flash-boiling evaporators 4, that is: in flash-boiling evaporators 4 interchanger cooling water circulation pipeline in the outlet of chilled water tank 9 of water coolant by being connected with circulation line, after supercooled water transferpump 10, reuse is to the workshop needed or be transported to user outward.B road in Fig. 1 shows the recycling for produced raw steam water coolant in alkali liquor concentration evaporation process process, that is: the outlet being arranged on the raw vapor condensation water collecting tank in the casing of flash-boiling evaporators 4 is connected with raw vapor condensation water pot 7, will give birth to the reuse of steam water coolant to boiler house by the raw steam condensate transferpump 8 being connected to raw vapor condensation water pot 7 exit.C road in Fig. 1 shows the recycling for produced water of condensation in alkali liquor concentration evaporation process process, that is: the outlet being arranged on the condensation water collection tank in the casing of flash-boiling evaporators 4 is connected with condensate water pot 5, by the water of condensation transferpump 6 that is connected to condensate water pot 5 exit by recycling condensing water to the workshop needed or be transported to user outward.
The experimental applications example of the recycling of high alkali liquid: certain textile printing and dyeing factory of the north, mercerization waste lye quantity discharged is about 200t/d, original design technique is that after waste lye adds acid for adjusting pH, unification enters full factory Sewage treatment systems, in this technique, waste lye cannot reuse, need in this process system to add a large amount of sulfuric acid simultaneously, substantially increase cost for wastewater treatment.Adopt the utility model recovery system to set up base extraction station, its design scale is 200m
3/ d, wherein, sig water 150 ~ 200m
3/ d, high alkali liquid 1.67m
3/ d, focuses on recovery after two bursts of unified collections of waste lye, reclaims concentrated base 15 ~ 20m after process
3/ d.Reclaim waste lye water-quality guideline as table 1:
The main water-quality guideline of table 1. waste lye gathers
To sum up, after expander system, waste lye concentration can be concentrated into 23.5%, meets mercerization alkali concn; High alkali liquid is after catalytic oxidation system, and white dyes is without detecting, and colourity can meet the mercerising process of different colours yarn-dyed fabric, the particularly mercerization of light cloth.
Although be described the utility model by reference to the accompanying drawings above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; when not departing from the utility model aim, can also make a lot of distortion, these all belong within protection of the present utility model.
Claims (2)
1. for yarn-dyed fabric mercerized waste alkali liquid catalyzed oxidation evaporation a recovery system, it is characterized in that, comprising: weak lye filter and collector unit, alkali liquor concentration evaporation and collector unit and high alkali liquid catalyzed oxidation decolouring unit;
Described weak lye filters and collector unit comprises self-cleaning filter A (1), light alkali holding tank (2) and the light alkali transferpump (3) of being connected successively by pipeline; Described light alkali holding tank (2) is provided with thermometer and liquidometer;
Described alkali liquor concentration evaporation and collector unit comprise flash-boiling evaporators (4), condensate water pot (5), chilled water tank (9), water of condensation transferpump (6), water coolant transferpump (10), raw vapor condensation water pot (7), raw steam condensate transferpump (8), described flash-boiling evaporators (4) comprises casing, is provided with concentrated base pond, raw steam condenser pipe, raw vapor condensation water collecting tank, interchanger, the cooling water circulation pipeline be connected with interchanger, equilibration tube and condensation water collection tank in casing; The outlet of described light alkali transferpump (3) is connected to by pipeline in the casing of described flash-boiling evaporators (4), and described condensate water pot (5) is connected with the outlet of described condensation water collection tank; Described chilled water tank (9) is connected with cooling water circulation pipeline; Described raw vapor condensation water pot (7) and being connected with the outlet of raw vapor condensation water collecting tank; The outlet of described condensate water pot (5), described chilled water tank (9) and described raw vapor condensation water pot (7) is connected with transferpump and transfer line in turn respectively separately; The outlet in described concentrated base pond is connected to described high alkali liquid catalyzed oxidation decolouring unit;
Described high alkali liquid catalyzed oxidation decolouring unit comprises self-cleaning filter B (11), concentrated base tundish (12), concentrated base transferpump A (13), plate-type heat exchanger (14), ozone oxidation tower (15), concentrated base transferpump B (16), activated charcoal filter (17), cartridge filter (18), concentrated base reuse tank (19) and the concentrated base transferpump C (20) that the outlet from described concentrated base pond is connected successively by pipeline; Described ozone oxidation tower (15) is connected with ozone transfer line, and described ozone transfer line is provided with under meter;
All pipelines are provided with valve respectively.
2., according to claim 1 for the catalyzed oxidation evaporation recovery system of yarn-dyed fabric mercerized waste alkali liquid, it is characterized in that, described light alkali holding tank (2) comprises the tank body of multiple series connection, and each tank body is provided with thermometer and liquidometer respectively.
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| CN201420621437.2U CN204198542U (en) | 2014-10-24 | 2014-10-24 | A kind of evaporation of the catalyzed oxidation for yarn-dyed fabric mercerized waste alkali liquid recovery system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445771A (en) * | 2014-10-24 | 2015-03-25 | 天津市联合环保工程设计有限公司 | Catalytic oxidation evaporation recovery system for mercerizing waste alkali liquid of yarn-dyed fabric |
| CN107226575A (en) * | 2017-07-26 | 2017-10-03 | 芜湖富春染织股份有限公司 | A kind of method of wastewater treatment of yarn filaments photoproduction production |
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2014
- 2014-10-24 CN CN201420621437.2U patent/CN204198542U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445771A (en) * | 2014-10-24 | 2015-03-25 | 天津市联合环保工程设计有限公司 | Catalytic oxidation evaporation recovery system for mercerizing waste alkali liquid of yarn-dyed fabric |
| CN107226575A (en) * | 2017-07-26 | 2017-10-03 | 芜湖富春染织股份有限公司 | A kind of method of wastewater treatment of yarn filaments photoproduction production |
| CN107226575B (en) * | 2017-07-26 | 2020-12-15 | 芜湖富春染织股份有限公司 | Wastewater treatment method for yarn mercerization production |
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