CN103304071A - Printing and dyeing wastewater heat energy recovery and anti-dirty treatment method - Google Patents
Printing and dyeing wastewater heat energy recovery and anti-dirty treatment method Download PDFInfo
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- CN103304071A CN103304071A CN2013102837641A CN201310283764A CN103304071A CN 103304071 A CN103304071 A CN 103304071A CN 2013102837641 A CN2013102837641 A CN 2013102837641A CN 201310283764 A CN201310283764 A CN 201310283764A CN 103304071 A CN103304071 A CN 103304071A
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Abstract
The invention belongs to the technical field of wastewater heat energy recovery, and relates to a printing and dyeing wastewater heat energy recovery and anti-dirty treatment method. The method comprises the steps of starting a control switch in a switch box so that a recovery device begins to run and work; starting a control system, at which time high-temperature wastewater from a printing and dyeing production workshop is introduced to the recovery device through a centrifugal pump, open a faucet so that running water enters into the recovery device through a clean water inlet, implementing water-water exchange between cold clean water and heat wastewater through a heat exchange host machine, transmitting the heat wastewater to a regulating tank through a sewage outlet after reducing temperature and implementing acid-base equilibrium regulation until the sewage is neutral, and settling; discharging the sewage to a next wastewater treatment project through a discharge port after being settled for three times. The method is simple in process, simple and convenient to operate, rational in device structure, reliable in principle, low in manufacturing cost, good in recovery effect, high in recovery efficiency, and environmentally-friendly.
Description
Technical field:
The invention belongs to the heat recovery from sewage technical field; relate to a kind of dyeing waste water energy recovery and anti-fouling treatment method; be applicable to the discharging of textile industry and wastewater of dyeing and printing industry and replenish in the production system; exchange the thermal power transfer in the waste water in process water by water water, realization reduces wastewater temperature, heat recycles and protection of the environment.
Background technology:
At present, at chemical industry, weaving, all can produce a large amount of temperature in the enterprise production process such as printing and dyeing and be the hot wastewater about 65 ℃, these waste water have also contained amount of heat when containing pollution substance, especially textile printing and dyeing wastewater, it has high temperature, high chroma, the characteristics of high pollution, because temperature is high, some bacterial classification can not be survived in hot wastewater, biochemical processing method just is difficult for adopting, so can only utilize physical chemistry method processes, and the heat energy of how as far as possible farthest recycling in these waste water is the energy-saving and cost-reducing vital task of textile industry, although a lot of enterprises make a lot of effort aspect treatment of dyeing wastewater, be main mainly with end treatment greatly, end treatment refers to the Waste Water Centralized that each production process produces is processed together, this not only makes wastewater treatment capacity strengthen, processing cost increases, and has increased intractability, and what is more important all concentrates on end with high temperature and processes, heat in the water runs off can be very serious, and this is unfavorable for recycling very much; In addition, the terminal processing needs cool off the higher dyeing waste water of temperature that produces in the production process first, also needs again to heat during reuse again, and thermal waste is comparatively serious in this process, cause the unnecessary loss of the energy, and pollute the environment, affect the eubiosis.If can in wastewater treatment process, realize the recycling of heat energy; namely the heat in the high-temperature dyeing waste water is just directly recycled in treating processes; make it circulation and enter into industrial production system; can not only reduce enterprise's production cost so; promote its competitive power; and can realize that energy source secondary effectively utilizes; reduce Greenhouse effect with protection of the environment; therefore seek to design a kind of dyeing waste water energy recovery and anti-fouling treatment method; when reducing the scale wastewater treatment cost; heat in the waste water is collected utilization; to reduce steam usage quantity in the production process; and to waste water precipitate with filtration treatment after be discharged into again in the handling procedure of lower step, have good economic benefit and social value.
Summary of the invention:
The object of the invention is to overcome the shortcoming that prior art exists, seek design a kind of dyeing waste water energy recovery and anti-fouling treatment method are provided, to realize the recycling to heat among the spent hot water, protection of the environment is saved cost.
To achieve these goals, the dyeing waste water energy recovery that the present invention relates to and anti-fouling treatment method specifically comprise installation startup retrieving arrangement, reduce wastewater temperature, regulate the pH-value processing and carry out four steps of sedimentation processing discharging by the exchange of water water:
(1) the startup retrieving arrangement is installed: first the syndeton mode of each parts in the retrieving arrangement according to routine fixedly mounted, impeller pump is placed the hot wastewater pond of production plant, again the clear water import is fixedly docked with water tap, relief outlet places the ingress of lower road wastewater treatment operation, and the trip switch in the last starting switch box is worked by the retrieving arrangement entry into service;
(2) reduce wastewater temperature by the exchange of water water: start Controlling System, to the print and dye hot wastewater of production plant of impeller pump entry into service is introduced in the retrieving arrangement, open water tap so that tap water enters in the retrieving arrangement by the clear water import, cold clear water and thermal wastewater carry out the exchange of water water by the heat exchange main frame, the hot tub that cold clear water will be taken away the heat of 50%-70% in the thermal wastewater and enter into the printing and dyeing production plant by clear water output is for dyeing and rinsing, and the thermal wastewater after the cooling enters to equalizing tank by sewage outlet;
(3) regulating pH-value processes: the waste water after the cooling that enters into equalizing tank by pipeline is carried out acid base equilibrium regulate, if waste water is acid, then the feeding port by the equalizing tank upper right side inserts that conventional alkaline matter carries out neutralization reaction so that sewage is neutral; If waste water is alkaline, then the feeding port by the equalizing tank upper right side inserts that conventional acidic substance carry out neutralization reaction so that sewage is neutral;
(4) carry out sedimentation and process discharging: when the sewage that is neutrality enters into settling bowl by entering mouth, the coarse grain layer is with oarse-grained impurity elimination in the sewage, middle granulosa carries out secondary settlement further except the dye substance in the decontaminated water, the fine sand layer is done the last sedimentation of filtering, remove fine impurity, be discharged in the lower road waste water treatment engineering by relief outlet finally by the sewage after three sedimentations of mistake.
The present invention compared with prior art, this recovery and anti-fouling treatment method can make the cold clear water temperature of equivalent rise to more than 90% of former discharging thermal wastewater temperature, thereby save required quantity of steam and the recycle pump electric power of heating process, and enterprise is reduced production costs; After the exchange of water water, the cold clear water temperature rises to close to required technological temperature, thereby shortens the dyeing process time, enhance productivity, and not needing increases the investments such as any production unit, personnel, and can shorten the working hour of production and application hot water, increases turnout 20%-30%; Distinctive heat exchange operation front end filtering system can guarantee that the heat exchange main frame can not produce fouling and obstruction in long-play, thus the stabilised efficiency of the system of assurance; In the situation that do not use cooling tower effectively to reduce wastewater temperature, reduce medicament usage quantity necessary in the treating processes, save the expense of wastewater treatment, alleviate simultaneously Greenhouse effect, preserve the ecological environment; Can shorten the boiler operatiopn time for the factory that uses boiler, reduce the topsoil output; By the pick up the heat of waste water, so that enterprise saves production cost, increase sales volume, improved competitive power, implemented national energy-saving emission reduction tasks index, promoted enterprise's cleaner production image, guarantee its competitive edge; Its technological process is simple, and is easy and simple to handle, and apparatus structure is reasonable, and principle is reliable, low cost of manufacture, and recovering effect is good, and organic efficiency is high, environmental friendliness.
Description of drawings:
Fig. 1 is technical process principle schematic of the present invention.
Fig. 2 is the apparatus main body structural principle schematic diagram that the present invention relates to.
Embodiment:
Below in conjunction with accompanying drawing and by embodiment the present invention is made further description.
Embodiment:
The present embodiment is realized energy recovery and the antifouling processing of dyeing waste water in dyeing waste water energy recovery and antifouling treatment unit, its concrete technology comprises installation startup retrieving arrangement, reduces wastewater temperature, regulates the pH-value processing and carry out four steps of sedimentation processing discharging by the exchange of water water:
(1) the startup retrieving arrangement is installed: first the syndeton mode of each parts in the retrieving arrangement according to routine fixedly mounted, impeller pump 2 is placed the hot wastewater pond of production plant, again clear water import 10 is fixedly docked with water tap, relief outlet 35 places the ingress of lower road wastewater treatment operation, and the trip switch in the last starting switch box 18 is worked by the retrieving arrangement entry into service;
(2) reduce wastewater temperature by the exchange of water water: start Controlling System 6, to the print and dye hot wastewater of production plant of impeller pump 2 entrys into service is introduced in the retrieving arrangement, open water tap so that tap water enters in the retrieving arrangement by clear water import 10, cold clear water and thermal wastewater carry out the exchange of water water by heat exchange main frame 4, the hot tub that cold clear water will be taken away the heat of 50%-70% in the thermal wastewater and enter into the printing and dyeing production plant by clear water output 11 is for dyeing and rinsing, and the thermal wastewater after the cooling enters to equalizing tank 27 by sewage outlet 9;
(3) regulating pH-value processes: the waste water after the cooling that enters into equalizing tank 27 by pipeline 36 is carried out acid base equilibrium regulate, if waste water is acid, then the feeding port 26 by equalizing tank 27 upper right sides inserts that conventional alkaline matter carries out neutralization reaction so that sewage is neutral; If waste water is alkaline, then the feeding port 26 by equalizing tank 27 upper right sides inserts that conventional acidic substance carry out neutralization reaction so that sewage is neutral;
(4) carry out sedimentation and process discharging: when the sewage that is neutrality enters into settling bowl 31 by entering mouth 30, coarse grain layer 32 is with oarse-grained impurity elimination in the sewage, middle granulosa 33 carries out secondary settlement further except the dye substance in the decontaminated water, fine sand layer 34 is done the last sedimentation of filtering, remove fine impurity, be discharged in the lower road waste water treatment engineering by relief outlet 35 finally by the sewage after three sedimentations of mistake.
The dyeing waste water energy recovery that the present embodiment relates to and the agent structure of antifouling treatment unit comprise vacuum tank 1, impeller pump 2, automatic filter 3, heat exchange main frame 4, control cabinet 5, Controlling System 6, recoil cleaning pipe 7, sewage import 8, sewage outlet 9, clear water import 10, clear water output 11, panel board 12, button 13, display screen 14, communicating pipe 15, docking latch closure 16, radiator window 17, switch capsule 18, air door 19, flowing water Valve 20, temperature dial plate 21, base 22, by-pass valve control 23, support 24, water inlet 25, feeding port 26, equalizing tank 27, discharge port 28, water outlet 29, enter mouth 30, settling bowl 31, coarse grain layer 32, middle granulosa 33, fine sand layer 34, relief outlet 35 and pipeline 36; Fixedly be shaped with successively from left to right control cabinet 5, vacuum tank 1, impeller pump 2 and automatic filter 3 on the base 22, the impeller pump 2 fixing vacuum tanks 1 that are communicated with, the top of vacuum tank 1 is fixedly installed air door 19 in order to the air in the extracting vacuum tank 1, and the upper end face place of vacuum tank 1 fixedly is shaped with panel board 12 and is used for showing atmospheric pressure value in the vacuum tank 1; Automatic filter 3 is fixed on the right-hand member of base 22 by support 24, dock with 11 sealings of gooseneck type clear water output by docking latch closure 16 bottom of automatic filter 3, and the top of clear water output 11 fixedly is shaped with flowing water Valve 20 and enters production plant in order to control clear water; The top of automatic filter 3 fixedly is shaped with by-pass valve control 23 in order to control automatic filter 3, the fixing end that is communicated with sewage import 8 in the upper end of automatic filter 3, the other end of sewage import 8 fixedly is communicated with impeller pump 2, the lower end of automatic filter 3 fixedly is communicated with an end of recoil cleaning pipe 7 by docking latch closure 16, recoils to clean and manages 7 the other end sewage outlet 9 that is docked and connected; The structure of heat exchange main frame 4 is that the pipeline folding type that is arranged above and below is communicated with the heat exchange system that forms loop structure, sewage outlet 9 docks with the lowermost end seal for pipe joints of heat exchange main frame 4 by docking latch closure 16, and the lowermost end pipeline of heat exchange main frame 4 and place, the Butt Section of sewage outlet 9 fixedly are shaped with the temperature that temperature dial plate 21 is used for showing sewage; Control cabinet 5 upper surfaces that are positioned at base 22 left end places fixedly are shaped with button 13 and display screen 14, Controlling System 6 is installed in order to control whole retrieving arrangement in the control cabinet 5, the upper and lower of control cabinet 5 all fixedly is shaped with radiator window 17, and switch capsule 18 is fixed between bottom two pipelines of the heat exchange main frame 4 of controlling cabinet 5 the right; Fixedly dock with clear water import 10 on the top pipeline right-hand member top of heat exchange main frame 4, and dock by two communicating pipe 15 sealing with the intermediate conduit right-hand member top of heat exchange main frame 4 the top pipeline right-hand member bottom of heat exchange main frame 4; Sewage outlet 9 docks with water inlet 25 sealings of equalizing tank 27 by pipeline 36, the upper right side place of equalizing tank 27 offers feeding port 26 and is used for adding the filling of regulating the waste water pH-value, the left lower end of equalizing tank 27 fixedly is shaped with discharge port 28 and is used for discharging waste material, the left end water outlet 29 of equalizing tank 27 docks with mouthful 30 sealings that enter of settling bowl 31, settling bowl 31 adopts conventional sewage sedimentation to process structure, be equipped with successively the coarse grain layer 32 that thickness is 70cm-100cm in its inner chamber from top to bottom, thickness is the middle granulosa 33 of 50cm-70cm and the fine sand layer 34 that thickness is 30cm-50cm, respectively sewage is realized coarse particles, the sedimentation filtration treatment of the refuse such as impurity and dyestuff matter, sewage after treatment is discharged into the lower road processing engineering from the relief outlet 35 of settling bowl 31.
Claims (2)
1. a dyeing waste water energy recovery and anti-fouling treatment method is characterized in that concrete technology comprises installing and start retrieving arrangement, reduce wastewater temperature, regulate pH-value and process and carry out sedimentation and process four steps of discharging by the exchange of water water:
(1) the startup retrieving arrangement is installed: first the syndeton mode of each parts in the retrieving arrangement according to routine fixedly mounted, impeller pump is placed the hot wastewater pond of production plant, again the clear water import is fixedly docked with water tap, relief outlet places the ingress of lower road wastewater treatment operation, and the trip switch in the last starting switch box is worked by the retrieving arrangement entry into service;
(2) reduce wastewater temperature by the exchange of water water: start Controlling System, to the print and dye hot wastewater of production plant of impeller pump entry into service is introduced in the retrieving arrangement, open water tap so that tap water enters in the retrieving arrangement by the clear water import, cold clear water and thermal wastewater carry out the exchange of water water by the heat exchange main frame, the hot tub that cold clear water will be taken away the heat of 50%-70% in the thermal wastewater and enter into the printing and dyeing production plant by clear water output is for dyeing and rinsing, and the thermal wastewater after the cooling enters to equalizing tank by sewage outlet;
(3) regulating pH-value processes: the waste water after the cooling that enters into equalizing tank by pipeline is carried out acid base equilibrium regulate, if waste water is acid, then the feeding port by the equalizing tank upper right side inserts that conventional alkaline matter carries out neutralization reaction so that sewage is neutral; If waste water is alkaline, then the feeding port by the equalizing tank upper right side inserts that conventional acidic substance carry out neutralization reaction so that sewage is neutral;
(4) carry out sedimentation and process discharging: when being neutral sewage and mouthful entering into settling bowl by entering, the coarse grain layer is with oarse-grained impurity elimination in the sewage, middle granulosa carries out secondary settlement further except the dye substance in the decontaminated water, the fine sand layer is done the last sedimentation of filtering, remove fine impurity, be discharged in the lower road waste water treatment engineering by relief outlet finally by the sewage after three sedimentations of mistake.
2. dyeing waste water energy recovery according to claim 1 and anti-fouling treatment method is characterized in that employed apparatus main body structure comprises vacuum tank, impeller pump, automatic filter, the heat exchange main frame, the control cabinet, Controlling System, recoil cleaning pipe, the sewage import, sewage outlet, the clear water import, clear water output, panel board, button, display screen, communicating pipe, the docking latch closure, radiator window, switch capsule, air door, flowing water Valve, the temperature dial plate, base, by-pass valve control, support, water inlet, feeding port, equalizing tank, discharge port, water outlet, enter mouth, settling bowl, the coarse grain layer, middle granulosa, the fine sand layer, relief outlet and pipeline; Fixedly be shaped with successively from left to right control cabinet, vacuum tank, impeller pump and automatic filter on the base, the fixing vacuum tank that is communicated with of impeller pump, the top of vacuum tank is fixedly installed air door in order to the air in the extracting vacuum tank, and the upper end face place of vacuum tank fixedly is shaped with panel board and is used for showing atmospheric pressure value in the vacuum tank; Automatic filter is fixed on the right-hand member of base by support, dock with the sealing of gooseneck type clear water output by the docking latch closure bottom of automatic filter, and the top of clear water output fixedly is shaped with flowing water Valve and enters production plant in order to control clear water; The top of automatic filter fixedly is shaped with by-pass valve control in order to control automatic filter, the fixing end that is communicated with the sewage import in the upper end of automatic filter, the other end of sewage import fixedly is communicated with impeller pump, the lower end of automatic filter fixedly is communicated with an end of recoil cleaning pipe by the docking latch closure, the other end that cleans pipe of the recoiling sewage outlet that is docked and connected; The structure of heat exchange main frame is that the pipeline folding type that is arranged above and below is communicated with the heat exchange system that forms loop structure, sewage outlet docks with the lowermost end seal for pipe joints of heat exchange main frame by the docking latch closure, and the lowermost end pipeline of heat exchange main frame and place, the Butt Section of sewage outlet fixedly are shaped with the temperature that the temperature dial plate is used for showing sewage; The control cabinet upper surface that is positioned at base left end place fixedly is shaped with button and display screen, Controlling System is installed in order to control whole retrieving arrangement in the control cabinet, the upper and lower of control cabinet all fixedly is shaped with radiator window, and switch capsule is fixed between bottom two pipelines of the heat exchange main frame on the right of the control cabinet; Fixedly dock with the clear water import on the top pipeline right-hand member top of heat exchange main frame, and dock by the sealing of two communicating pipe with the intermediate conduit right-hand member top of heat exchange main frame the top pipeline right-hand member bottom of heat exchange main frame; Sewage outlet docks with the water inlet sealing of equalizing tank by pipeline, the upper right side place of equalizing tank offers feeding port and is used for adding the filling of regulating the waste water pH-value, the left lower end of equalizing tank fixedly is shaped with discharge port and is used for discharging waste material, the left end water outlet of equalizing tank docks with mouthful sealing that enters of settling bowl, settling bowl adopts conventional sewage sedimentation to process structure, be equipped with successively the coarse grain layer that thickness is 70cm-100cm in its inner chamber from top to bottom, thickness is the middle granulosa of 50cm-70cm and the fine sand layer that thickness is 30cm-50cm, respectively sewage is realized coarse particles, the sedimentation filtration treatment of the refuse such as impurity and dyestuff matter, sewage after treatment is discharged into the lower road processing engineering from the relief outlet of settling bowl.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291461A (en) * | 2014-09-22 | 2015-01-21 | 涂友本 | Dyeing wastewater heat recovery device |
| CN104445526A (en) * | 2014-12-11 | 2015-03-25 | 广西大学 | Wastewater purifier capable of efficiently radiating |
| CN104790153A (en) * | 2015-03-20 | 2015-07-22 | 殷翠萍 | Recovery device for printing and dyeing wastewater |
| CN104291461B (en) * | 2014-09-22 | 2017-01-04 | 涂友本 | A kind of dyeing waste water heat-energy recovering apparatus |
| CN109133284A (en) * | 2018-08-31 | 2019-01-04 | 嘉善久顺木业有限公司 | A kind of the recycling cycling and reutilization and shunting processing system of dyeing hydro-thermal energy |
| CN112744974A (en) * | 2021-01-21 | 2021-05-04 | 上海金堂轻纺新材料科技有限公司 | Regeneration and cyclic utilization system for special wastewater generated in textile pretreatment |
| CN113587680A (en) * | 2021-09-01 | 2021-11-02 | 江苏康之欣染业有限公司 | Waste water heat energy exchanger for printing and dyeing processing |
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| JPH05237498A (en) * | 1992-02-28 | 1993-09-17 | Nippon Solid Co Ltd | Water treatment installation |
| CN201885472U (en) * | 2010-12-07 | 2011-06-29 | 中国科学院广州能源研究所 | Printing and dyeing wastewater heat energy recovery system |
| CN102145965A (en) * | 2011-04-18 | 2011-08-10 | 李斌 | Textile dyeing wastewater advanced treatment recycling technology |
| CN102774989A (en) * | 2012-07-24 | 2012-11-14 | 吴江市聚力机械有限公司 | Boiling and smelting wastewater treatment device |
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2013
- 2013-07-08 CN CN201310283764.1A patent/CN103304071B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05237498A (en) * | 1992-02-28 | 1993-09-17 | Nippon Solid Co Ltd | Water treatment installation |
| CN201885472U (en) * | 2010-12-07 | 2011-06-29 | 中国科学院广州能源研究所 | Printing and dyeing wastewater heat energy recovery system |
| CN102145965A (en) * | 2011-04-18 | 2011-08-10 | 李斌 | Textile dyeing wastewater advanced treatment recycling technology |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291461A (en) * | 2014-09-22 | 2015-01-21 | 涂友本 | Dyeing wastewater heat recovery device |
| CN104291461B (en) * | 2014-09-22 | 2017-01-04 | 涂友本 | A kind of dyeing waste water heat-energy recovering apparatus |
| CN104445526A (en) * | 2014-12-11 | 2015-03-25 | 广西大学 | Wastewater purifier capable of efficiently radiating |
| CN104790153A (en) * | 2015-03-20 | 2015-07-22 | 殷翠萍 | Recovery device for printing and dyeing wastewater |
| CN109133284A (en) * | 2018-08-31 | 2019-01-04 | 嘉善久顺木业有限公司 | A kind of the recycling cycling and reutilization and shunting processing system of dyeing hydro-thermal energy |
| CN112744974A (en) * | 2021-01-21 | 2021-05-04 | 上海金堂轻纺新材料科技有限公司 | Regeneration and cyclic utilization system for special wastewater generated in textile pretreatment |
| CN113587680A (en) * | 2021-09-01 | 2021-11-02 | 江苏康之欣染业有限公司 | Waste water heat energy exchanger for printing and dyeing processing |
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