CN208087250U - The device that high-salt wastewater low-temperature evaporation is concentrated using hot industry waste water - Google Patents
The device that high-salt wastewater low-temperature evaporation is concentrated using hot industry waste water Download PDFInfo
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- CN208087250U CN208087250U CN201820336403.7U CN201820336403U CN208087250U CN 208087250 U CN208087250 U CN 208087250U CN 201820336403 U CN201820336403 U CN 201820336403U CN 208087250 U CN208087250 U CN 208087250U
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- waste water
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- salt wastewater
- hot industry
- evaporator
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Abstract
A kind of device that high-salt wastewater low-temperature evaporation is concentrated using hot industry waste water, the device includes evaporator, condenser and vacuum pump, hot industry waste water inlet, primary steam floss hole and low-temperature industrial waste water row's mouth are provided on evaporator, primary steam floss hole is connect with condenser, high-salt wastewater import, indirect steam floss hole and concentration waste water discharge opening are provided on condenser, evaporator and condenser are connect with vacuum pump.Hot industry waste water enters evaporator, hot industry waste water generates low pressure water vapor by vacuum evaporation under vacuum conditions, low pressure water vapor enters condenser, low pressure water vapor is in direct contact with high-salt wastewater within the condenser, mixing heat-exchange is carried out, is evaporated again after forming high temperature and high salt waste water, the water vapour discharge after evaporation, it is condensed into clean water, the high-salt wastewater after concentration is discharged by condenser.The device makes high-salt wastewater be concentrated by evaporation using the waste heat of enterprise's hot waste water, has the characteristics that efficient, process is simple, energy consumption is small, operating cost is low.
Description
Technical field
The utility model is related to a kind of high-salt wastewaters for being generated to metallurgical, chemical enterprise to carry out low-temperature evaporation concentration
Device belongs to high-salt wastewater processing technology field.
Background technology
It needs to be water-cooled during metallurgical, Production in Chemical Plant and generates a large amount of hot waste waters and recycle always, waste water
Temperature cools down after needing cooling tower or natural cooling to recycle to equipment or waste material, these water recycle always generally at 80 DEG C or so
It uses, calcium, magnesium, sodium, potassium ion, carbonate ions, carbonic acid hydrogen ion, chlorion, sulfate ion and nitrate ion and other in water
Impurity content is especially more, these water easily cause heat transmission equipment blocking, fouling, corrosion if extracting heat with traditional heat transmission equipment
The problems such as.The high-salt wastewater of 20 DEG C of generation discharges after needing desalting processing in another production process.
It is mainly embrane method osmosis filtration now for high-salt wastewater treatment technology, existing main problem is exactly to water quality
It is required that high, COD is not above 200ppm, and solid particulate matter content is not easy to excessively high, and filter membrane easily blocks perishable aging, need to determine
Phase replaces film, and processing investment is big, and processing cost is high.
Utility model content
The utility model for insufficient existing for existing high-salt wastewater treatment technology, provide it is a kind of it is efficient, process is simple,
The small device that high-salt wastewater low-temperature evaporation is concentrated using hot industry waste water of energy consumption.
The device that high-salt wastewater low-temperature evaporation is concentrated using hot industry waste water of the utility model, using following technology
Scheme：
The device, including evaporator, condenser and vacuum pump are provided with hot industry waste water inlet, primary on evaporator
Steam outlet and low-temperature industrial waste water arrange mouth, and primary steam floss hole is connect with condenser, are provided on condenser with high salt useless
Water inlet, indirect steam floss hole and concentration waste water discharge opening, evaporator and condenser are connect with vacuum pump.
It is provided with booster in the connecting tube that the primary steam floss hole is connect with condenser.
It is connected with exhaust pump at the indirect steam floss hole.
Hot industry waste water enters evaporator, and hot industry waste water generates low pressure water by vacuum evaporation under vacuum conditions
Steam, low pressure water vapor enter condenser, and low pressure water vapor is in direct contact with high-salt wastewater within the condenser, carry out hybrid change
Heat is evaporated again after forming high temperature and high salt waste water, and the water vapour discharge after evaporation is condensed into clean water, with high salt useless after concentration
Water is discharged by condenser.
The utility model utilizes the waste heat of enterprise's hot waste water, and next stage negative pressure equipment is directly entered after vacuum flashing
(condenser) and the direct Hybrid Heating of high-salt wastewater, makes high-salt wastewater be concentrated by evaporation, and knot is evaporated again after high-salt wastewater concentration
Crystalline substance reduces the water of evaporative crystallization, reduces investment, and also low compared with the concentration investment of traditional embrane method, service life grows (embrane method
Concentration needs to regularly replace).Have the characteristics that efficient, process is simple, energy consumption is small, operating cost is low.
Description of the drawings
Fig. 1 is the structural representation for the device that the utility model concentrates high-salt wastewater low-temperature evaporation using hot industry waste water
Figure.
In figure：1. evaporator, 2. condensers, 3. vacuum pumps, 4. boosters, 5. exhaust pumps.
Specific implementation mode
The utility model utilizes the device that hot industry waste water concentrates high-salt wastewater low-temperature evaporation, as shown in Figure 1, including
Evaporator 1, condenser 2 and vacuum pump 3 are provided with hot industry waste water inlet, primary steam floss hole and with high salt on evaporator 1
Waste water inlet, primary steam floss hole are connect with condenser 2, and booster 4 can be connected in connecting tube.It is provided with height on condenser 2
Salt waste water inlet, indirect steam floss hole and concentration waste water discharge opening, can connect exhaust pump 5 at indirect steam floss hole.Evaporation
Device 1 and condenser 2 are connect with vacuum pump 3.
To the concentration of high-salt wastewater low-temperature evaporation, details are provided below using hot industry waste water for above-mentioned apparatus.
1. hot industry waste water is entered by hot industry waste water inlet in evaporator 1 (closed container), Water-ring vacuum is utilized
Negative pressure is taken out in 3 pairs of evaporators 1 of pump, the vacuum environment that vacuum degree is 0.012mpa-0.047mpa is produced in evaporator 1, very
Reciprocal of duty cycle can change according to the water temperature of industrial wastewater to be automatically adjusted.Hot industry waste water generates low pressure water vapor by vacuum evaporation.
The temperature of low pressure water vapor close to hot industry waste water initial temperature, since there are thermal loss, 80 DEG C of hot industry is useless
The low pressure water vapor temperature generated after water evaporation is about 78 DEG C.The part of water vapour is not generated in hot industry waste water by with high salt useless
Evaporator is discharged in water inlet, continues on for cooling down.
Through repeatedly being investigated to enterprises such as steel mill, coking, measuring the industrial wastewaters such as washing slag water, quenching cooling water throughout the year at 80 DEG C
Left and right utilizes this from equipment processing technology, investment, energy consumption, benefit comprehensive analysis not less than 50 DEG C (vacuum degree 0.012mpa)
The method of utility model can use, and it is very wide to be concentrated by evaporation temperature range.
2. low pressure water vapor enters condenser 2, while high-salt wastewater by primary steam floss hole directly or by booster 4
Condenser 2 is entered by high-salt wastewater import, is in direct contact with high-salt wastewater in 2 mesolow water vapour of condenser, is carried out hybrid
Heat exchange, condenser 2 is interior to take out negative pressure also by vacuum pump 3, is evaporated again after forming high temperature and high salt waste water, the water vapour profit after evaporation
It is discharged by indirect steam floss hole with exhaust pump 5, is condensed into clean water.High-salt wastewater discharge reduction salt content after evaporation increases
Add, by concentration waste water discharge opening eductor condenser, desalination is evaporated using heat source at higher temperature into next stage.25 DEG C or so
High-salt wastewater by the mixing of 78 DEG C or so of low pressure water vapor after, 75 DEG C or so can be reached.
The above process is manufactured using minimum energy consumption in evaporator using the water characteristic that boiling point reduces under vacuum conditions
Go out vacuum environment, so that hot industry waste water is not necessarily to reheating, directly generate the low pressure water vapor largely close to its initial temperature,
It carries a large amount of latent heat of vaporization and carries out direct heat transfer, to avoid the straight of industrial wastewater and evaporator (heat exchanger) internal face completely
Contact thoroughly prevents the blocking of industrial wastewater heat exchanging wall surface, burn into crystallization, hangs the problems such as dirt.
Claims (3)
1. a kind of device that high-salt wastewater low-temperature evaporation is concentrated using hot industry waste water, it is characterized in that：Including evaporator, cold
Condenser and vacuum pump are provided with hot industry waste water inlet, primary steam floss hole and low-temperature industrial waste water row's mouth on evaporator,
Primary steam floss hole is connect with condenser, and high-salt wastewater import, indirect steam floss hole and thickened waste are provided on condenser
Water outlet, evaporator and condenser are connect with vacuum pump.
2. the device according to claim 1 concentrated to high-salt wastewater low-temperature evaporation using hot industry waste water, feature
It is：It is provided with booster in the connecting tube that the primary steam floss hole is connect with condenser.
3. the device according to claim 1 concentrated to high-salt wastewater low-temperature evaporation using hot industry waste water, feature
It is：It is connected with exhaust pump at the indirect steam floss hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820336403.7U CN208087250U (en) | 2018-03-12 | 2018-03-12 | The device that high-salt wastewater low-temperature evaporation is concentrated using hot industry waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820336403.7U CN208087250U (en) | 2018-03-12 | 2018-03-12 | The device that high-salt wastewater low-temperature evaporation is concentrated using hot industry waste water |
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| CN208087250U true CN208087250U (en) | 2018-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820336403.7U Active CN208087250U (en) | 2018-03-12 | 2018-03-12 | The device that high-salt wastewater low-temperature evaporation is concentrated using hot industry waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249499A (en) * | 2018-03-12 | 2018-07-06 | 山东中移能节能环保科技股份有限公司 | The method and device concentrated using hot industry waste water to high-salt wastewater low-temperature evaporation |
-
2018
- 2018-03-12 CN CN201820336403.7U patent/CN208087250U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249499A (en) * | 2018-03-12 | 2018-07-06 | 山东中移能节能环保科技股份有限公司 | The method and device concentrated using hot industry waste water to high-salt wastewater low-temperature evaporation |
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