CN104193118A - Printing and dyeing wastewater recycling device and wastewater purification method - Google Patents
Printing and dyeing wastewater recycling device and wastewater purification method Download PDFInfo
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- CN104193118A CN104193118A CN201410496176.0A CN201410496176A CN104193118A CN 104193118 A CN104193118 A CN 104193118A CN 201410496176 A CN201410496176 A CN 201410496176A CN 104193118 A CN104193118 A CN 104193118A
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Abstract
The invention discloses a printing and dyeing wastewater recycling device which comprises a wastewater pipe, a cooling tower, a purification device, a heat energy exchange device, a first delivery pipe and a second delivery pipe, wherein the wastewater pipe is provided with two output ends; the first output end is connected with the cooling tower; the second output end is connected with the heat energy exchange device; the cooling tower is connected with an input end of the purification device via the first delivery pipe; the second delivery pipe penetrates through the heat energy exchange device; and one end of the second delivery pipe is connected with the purification device. Hot wastewater is circulated in two paths, one path serves as a cool water source for cooling and purification, and the other path serves as heat energy for heat energy exchange.
Description
Technical field
The invention belongs to field of Environment Protection, be specifically related to a kind of dyeing waste water secondary utilization device and purification method for effluent.
Background technology
Textile waste be mainly in the processes such as material cooking, rinsing, bleaching, starching, produce containing the organic waste water such as natural impurity, fat and starch.Dyeing waste water is washed and is dyed, produces in the multiple working procedure such as stamp, starching, contains the organism such as a large amount of dyestuffs, starch, Mierocrystalline cellulose, xylogen, washing composition, and the inorganics such as alkali, sulfide, all kinds of salts, and contaminative is very strong.
The main source of wastewater in textile printing and dyeing industry is dyeing waste water.Dyeing waste water is that processing cotton, fiber crops, man-made fiber and blending product thereof are the waste water that main printing and dyeing mill discharges.
In waste water, contain: dyestuff, slurry, auxiliary agent, finish, soda acid, fiber impurity, sand class material, inorganic salt etc., its water quality characteristics is mainly that COD and BOD are high, and the indexs such as colourity that cause are thus considerably beyond emission standard, be acknowledged as one of main harmful waste water of refractory reason.
In dyeing and finishing production process, wastewater temperature is up to more than 80 degrees Celsius, if directly discharge will cause two kinds of adverse consequencess, one: enter purification tank for liquid waste, can make wastewater temperature in pond increase more than 46 degrees Celsius, have a strong impact on aerobic treatment; Two, cause energy dissipation, increase production cost, the waste of a large amount of heat energy, is the high major reason of production cost.
At present, a lot of to the device of thermal wastewater energy recovery, if application number is " 201210324673.3 ", denomination of invention comprises for " for thermal wastewater device for recycling heat " the first thermal exchange equipment that thermal wastewater is carried out to thermal exchange, the heat displacement pipeline that is provided with thermal wastewater circulation pipeline in it and the heat in thermal wastewater is replaced; Heat in thermal wastewater absorbs by refrigeration agent, vaporizes, and by the conveying function of compressor, the refrigeration agent after vaporization is discharged through heat displacement pipeline after the heat of refrigeration agent absorption thermal wastewater; The second thermal exchange equipment is connected with the outlet of heat displacement pipeline, refrigeration agent after vaporization is delivered in the second thermal exchange equipment, and the medium of need heating is heated, thereby realized, the heat in thermal wastewater being absorbed to conversion, thermal wastewater is discharged after being down to design temperature.Thermal wastewater device for recycling heat provided by the invention is by the absorbing of heat in thermal wastewater, and avoids the direct discharge of thermal wastewater to cause the waste of energy, reduces the environmental pollution that the direct discharge by thermal wastewater causes simultaneously.
But in current heat exchange system, waste water is only as heat energy, how using waste water under the prerequisite as heat energy, it is a particularly important problem that this waste water is carried out to second stage employ.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of dyeing waste water secondary utilization device that waste water is converted to available hot water.
The present invention is for solving the problems of the technologies described above, adopt following technical scheme: a kind of dyeing waste water secondary utilization device, comprise waste pipe, cooling tower, refining plant, heat energy exchange device, the first transfer tube and the second transfer tube, described waste pipe is provided with two output terminals, the first output terminal is connected with cooling tower, the second output terminal is connected with heat energy exchange device, described cooling tower is connected with refining plant input terminus by the first transfer tube, described the second transfer tube runs through heat energy exchange device, and wherein one end is connected with refining plant.
Further preferred version, dyeing waste water secondary utilization device of the present invention, described refining plant comprises stair oxidation pond, medium sediment pool, secondary oxidation pond, second pond, tertiary oxidation pond, settling tank and the charcoal absorption chamber connecting successively.
Further preferred version, dyeing waste water secondary utilization device of the present invention, the first output terminal of waste pipe is provided with first-hand movable valve, the second output terminal is provided with second-hand's movable valve, the first transfer tube is provided with the 3rd manually-operated gate, the second transfer tube between refining plant and heat energy exchange device partly arranges the 4th manually-operated gate, and the output terminal of the second transfer tube arranges the 5th manually-operated gate.
Further preferred version, dyeing waste water secondary utilization device of the present invention, the output terminal outer wall of described the second transfer tube is provided with temperature sensor.
Simultaneously in order to realize useless water purification, the invention provides a kind of purification method for effluent, to, through the output after process in stair oxidation pond, medium sediment pool, secondary oxidation pond, second pond, tertiary oxidation pond, settling tank and charcoal absorption chamber successively of the cooled waste water of cooling tower, in settling tank precipitation process, add coagulating agent.
Preferred version further, a kind of purification method for effluent, coagulating agent is ferrous sulfate.
Compared with prior art, the present invention has following beneficial effect:
1, thermal wastewater is carried out to two-way circulation, a road is for cooling and purifying as cold water source, and thermal energy exchange is carried out as heat energy in another road.
2, this structure, without input water source, the external world, reaches both thermal energy exchange through thermal wastewater self heat energy, the waste of the water resources of minimizing after thermal wastewater is processed again.
3, in this structure, a plurality of manually-operated gates are set, by by the switch between by-pass valve control, reach the effect that heat energy fully exchanges.
4, on the second transfer tube output terminal outer wall, set temperature sensor can be monitored the water temperature of output.
Accompanying drawing explanation
The structured flowchart of Fig. 1 embodiment dyeing waste water secondary utilization device.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is elaborated:
A kind of dyeing waste water secondary utilization device of the present invention, comprise waste pipe, cooling tower, refining plant, heat energy exchange device, the first transfer tube and the second transfer tube, described waste pipe is provided with two output terminals, the first output terminal is connected with cooling tower, the second output terminal is connected with heat energy exchange device, described cooling tower is connected with refining plant input terminus by the first transfer tube, and described the second transfer tube runs through heat energy exchange device, and wherein one end is connected with refining plant.
Embodiment
As shown in Figure 1, a kind of dyeing waste water secondary utilization device, comprise waste pipe 1, cooling tower 4, refining plant 7, heat energy exchange device 10, the first transfer tube 5 and the second transfer tube 8, described waste pipe is provided with two output terminals, the first output terminal is connected with cooling tower, and the second output terminal is connected with heat energy exchange device, and described cooling tower is connected with refining plant input terminus by the first transfer tube, described the second transfer tube runs through heat energy exchange device, and wherein one end is connected with refining plant.
Described refining plant comprises stair oxidation pond, medium sediment pool, secondary oxidation pond, second pond, tertiary oxidation pond, settling tank and the charcoal absorption chamber connecting successively.The first output terminal of waste pipe is provided with first-hand movable valve 2, the second output terminal is provided with second-hand's movable valve 3, the first transfer tube 5 is provided with the 3rd manually-operated gate 6, the output terminal that the second transfer tube 8 parts between refining plant and heat energy exchange device arrange the 4th manually-operated gate 9, the second transfer tubes arranges the 5th manually-operated gate 11.The output terminal outer wall of described the second transfer tube is provided with temperature sensor.The temperature sensor adopting in the present invention is DS18B20 digital temperature sensor, can know and know current output water temperature.
During use, open first-hand movable valve and close other manually-operated gate, thermal wastewater enters in cooling tower and carries out after cooling process through the first output terminal of waste pipe, when reaching certain water level, close first-hand movable valve, open the 3rd manual valve and enter refining plant, inferior to stair oxidation pond to cooled waste water, medium sediment pool, secondary oxidation pond, second pond, tertiary oxidation pond, the 4th manually-operated gate is opened after processing in settling tank and charcoal absorption chamber, through the second transfer tube to heat energy exchange device, now open second-hand's movable valve, thermal wastewater flow in heat energy exchange device heat transfer to the second transfer tube, monitor the temperature sensor on the second transfer tube output terminal outer wall, when reaching threshold value, temperature opens the 5th manually-operated gate, through the water purifying and reach specified temp, through the second transfer tube, export.
Thermal wastewater is carried out to two-way circulation, and a road is for cooling and purifying as cold water source, and thermal energy exchange is carried out as heat energy in another road.
This structure, without input water source, the external world, reaches both thermal energy exchange through thermal wastewater self heat energy, the waste of the water resources of minimizing after thermal wastewater is processed again.
A plurality of manually-operated gates are set in this structure, by by the switch between by-pass valve control, reach the effect that heat energy fully exchanges.
On the second transfer tube output terminal outer wall, set temperature sensor can be monitored the water temperature of output.
The invention also discloses a kind of purification method for effluent simultaneously, to, through the output after process in stair oxidation pond, medium sediment pool, secondary oxidation pond, second pond, tertiary oxidation pond, settling tank and charcoal absorption chamber successively of the cooled waste water of cooling tower, in settling tank precipitation process, add coagulating agent.In the present invention, coagulating agent adopts ferrous sulfate.Ferrous sulfate is used for the flocculating and purifying of water, and removes phosphoric acid salt from city and industrial sewage, in case the eutrophication of water-stop body.
The above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For the ordinary person of affiliated technical field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And these belong to apparent variation or the change that connotation of the present invention extends and still belong to protection scope of the present invention.
Claims (6)
1. a dyeing waste water secondary utilization device, it is characterized in that, comprise waste pipe, cooling tower, refining plant, heat energy exchange device, the first transfer tube and the second transfer tube, described waste pipe is provided with two output terminals, the first output terminal is connected with cooling tower, and the second output terminal is connected with heat energy exchange device, and described cooling tower is connected with refining plant input terminus by the first transfer tube, described the second transfer tube runs through heat energy exchange device, and wherein one end is connected with refining plant.
2. dyeing waste water secondary utilization device according to claim 1, is characterized in that: described refining plant comprises stair oxidation pond, medium sediment pool, secondary oxidation pond, second pond, tertiary oxidation pond, settling tank and the charcoal absorption chamber connecting successively.
3. dyeing waste water secondary utilization device according to claim 1, it is characterized in that: the first output terminal of waste pipe is provided with first-hand movable valve, the second output terminal is provided with second-hand's movable valve, the first transfer tube is provided with the 3rd manually-operated gate, the second transfer tube between refining plant and heat energy exchange device partly arranges the 4th manually-operated gate, and the output terminal of the second transfer tube arranges the 5th manually-operated gate.
4. dyeing waste water secondary utilization device according to claim 1, is characterized in that: the output terminal outer wall of described the second transfer tube is provided with temperature sensor.
5. the purification method for effluent based on dyeing waste water secondary utilization device described in claim 2, it is characterized in that, to, through the output after process in stair oxidation pond, medium sediment pool, secondary oxidation pond, second pond, tertiary oxidation pond, settling tank and charcoal absorption chamber successively of the cooled waste water of cooling tower, in settling tank precipitation process, add coagulating agent.
6. purification method for effluent according to claim 5, is characterized in that, coagulating agent is ferrous sulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410496176.0A CN104193118A (en) | 2014-09-25 | 2014-09-25 | Printing and dyeing wastewater recycling device and wastewater purification method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410496176.0A CN104193118A (en) | 2014-09-25 | 2014-09-25 | Printing and dyeing wastewater recycling device and wastewater purification method |
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| CN104193118A true CN104193118A (en) | 2014-12-10 |
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| CN201410496176.0A Pending CN104193118A (en) | 2014-09-25 | 2014-09-25 | Printing and dyeing wastewater recycling device and wastewater purification method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658304A (en) * | 2018-06-20 | 2018-10-16 | 浙江鑫广环保科技有限公司 | A kind of dyeing and printing sewage step decontamination processing system and processing method |
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| EP0218066A1 (en) * | 1985-09-30 | 1987-04-15 | N.V. Sanotec | Wastewater purification process |
| CN1951829A (en) * | 2006-06-07 | 2007-04-25 | 江苏天舒电器有限公司 | Waste heat circulation energy-saving printing and dyeing water utilization method and system |
| CN101462809A (en) * | 2008-12-25 | 2009-06-24 | 王俊川 | Comprehensive recovery method for heat energy and water from printing and dyeing industry wastewater and heat-exchanging system |
| CN102276081A (en) * | 2011-05-26 | 2011-12-14 | 武汉纺织大学 | Process for treating industrial organic waste water by serial catalytic oxidization |
| CN103274546A (en) * | 2013-05-30 | 2013-09-04 | 浙江莱美纺织印染科技有限公司 | Printing and dyeing wastewater pure-turbid separating and waste heat utilizing system |
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2014
- 2014-09-25 CN CN201410496176.0A patent/CN104193118A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0218066A1 (en) * | 1985-09-30 | 1987-04-15 | N.V. Sanotec | Wastewater purification process |
| CN1951829A (en) * | 2006-06-07 | 2007-04-25 | 江苏天舒电器有限公司 | Waste heat circulation energy-saving printing and dyeing water utilization method and system |
| CN101462809A (en) * | 2008-12-25 | 2009-06-24 | 王俊川 | Comprehensive recovery method for heat energy and water from printing and dyeing industry wastewater and heat-exchanging system |
| CN102276081A (en) * | 2011-05-26 | 2011-12-14 | 武汉纺织大学 | Process for treating industrial organic waste water by serial catalytic oxidization |
| CN103274546A (en) * | 2013-05-30 | 2013-09-04 | 浙江莱美纺织印染科技有限公司 | Printing and dyeing wastewater pure-turbid separating and waste heat utilizing system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658304A (en) * | 2018-06-20 | 2018-10-16 | 浙江鑫广环保科技有限公司 | A kind of dyeing and printing sewage step decontamination processing system and processing method |
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Application publication date: 20141210 |