CN204973107U - Industrial waste water's evaporation processing apparatus - Google Patents

Industrial waste water's evaporation processing apparatus Download PDF

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Publication number
CN204973107U
CN204973107U CN201520481397.0U CN201520481397U CN204973107U CN 204973107 U CN204973107 U CN 204973107U CN 201520481397 U CN201520481397 U CN 201520481397U CN 204973107 U CN204973107 U CN 204973107U
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China
Prior art keywords
evaporator
effect
connects
steam
triple
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Expired - Fee Related
Application number
CN201520481397.0U
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Chinese (zh)
Inventor
高甲义
孙培军
岳菡
陈青春
方接春
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Jiangsu Duble Engineering Co Ltd
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Jiangsu Duble Engineering Co Ltd
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Priority to CN201520481397.0U priority Critical patent/CN204973107U/en
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Abstract

The utility model provides an industrial waste water's evaporation processing apparatus, connects the material import of triple effect heating chamber including the 1st effective evaporator, two -effect evaporation ware and the triple -effect evaporator that establish ties, the import of material pipe, and the material export of triple effect heating chamber connects the material import of two -effect evaporation ware, and the export of two -effect evaporation implements material connects the material import of 1st effective evaporator, the import of giving birth to steam connects the 1st effective evaporator, meets the steam inlet of two -effect evaporation ware through the flash steam of 1st effective evaporator, and the export of two -effect evaporation ware flash steam meets triple -effect evaporator's steam inlet, and triple -effect evaporator's steam outlet connects the heat exchanger.

Description

A kind of evaporating of industrial wastewater
Technical field
The utility model relates to field of industrial waste water treatment, is specifically related to a kind of evaporating of the zero-emission industrial wastewater containing high salt concentration waste water.
Background technology
In the process of the industry high-salt wastewater such as electric power, chemical industry, desalinization, always there is the discharge of waste water, especially at polycrystalline reduction, organosilicon production field, activated silica containing high concentration in sewage, such as SiO2, chlorosilane etc., this type of waste water quality hardness are high, corrosivity is strong, salt content is high, water quality is very complicated, and variation water quality is very large, and need zero-emission process for treating industrial waste water in enterprises such as many local chemical industry, especially containing the evaporating of the zero-emission industrial wastewater of high salt concentration waste water.
Utility model content
For prior art Problems existing, the utility model object is, provides a kind of high-efficiency evaporating concentration technology being applicable to the industry haline waters such as electric power, chemical industry, desalinization; Especially containing the evaporating of the zero-emission industrial wastewater of high salt concentration waste water.
Technical solutions of the utility model are, the evaporating of industrial wastewater, comprise the 1st effective evaporator of series connection, 2nd effect evaporator and triple effect evaporator, the import of materail tube connects the material inlet of triple effect heating clamber, the material outlet of triple effect heating clamber connects the material inlet of 2nd effect evaporator, and 2nd effect evaporator material outlet connects the material inlet of 1st effective evaporator; The import of raw steam connects 1st effective evaporator, and the indirect steam through 1st effective evaporator connects the steam inlet of 2nd effect evaporator, and the outlet of 2nd effect evaporator indirect steam connects the steam inlet of triple effect evaporator, and the steam (vapor) outlet of triple effect evaporator connects heat exchanger.
Especially 1st effective evaporator is self-loopa crystallizing evaporator, comprise enriched chamber 2, separation chamber 4, heating clamber 5, separation chamber is positioned in the middle of enriched chamber and separation chamber, heating clamber 5 is tube side formula evaporating heat exchangers, vapor communication tube side, and the passage of material is shell side, tube side is the endless tube 6 of even coiling, tube side connects steam inlet 7, tube side formula evaporating heat exchanger is VERTICAL TUBE structure, the upper end of tube side formula evaporating heat exchanger is material inlet, and material inlet flows to shell side by distributor 8, and the bottom of enriched chamber 2 is discharging opening; The centre of tube side formula evaporating heat exchanger is provided with a Matter Transfer pipeline, and the distributor 8 of material inlet is led in the upper end of Matter Transfer pipeline, be provided with a circulating pump be communicated with bottom discharge mouth preferably a parallel pipeline be connected with the lower end of Matter Transfer pipeline.
The course of work of the present utility model is: material enters triple effect evaporator, and concentrate at triple effect heating heating indoor, the solution after concentrated enters triple effect separation chamber and carries out vapor-liquid separation, and triple effect separation chamber arranges pressure, temperature and liquid level teletransmission display.The liquid level of triple effect separation chamber is controlled by control valve, and the inlet amount of raw material is undertaken monitoring and cumulative record by remote control liquid flowmeter.Concentrate enters 2nd effect evaporator by triple effect cycle pump and continues evaporation and concentration, carries out vapor-liquid separation in two effect separation chambers, and two effect separation chambers arrange pressure, temperature and liquid level teletransmission display.The liquid level of two effect separation chambers is controlled by control valve.Two effect concentrates enter 1st effective evaporator by two effect circulating pumps and continue evaporation and concentration, in an effect crystallizer, carry out vapor-liquid separation, and an effect separation chamber arranges pressure, temperature and liquid level teletransmission display.The liquid level of one effect separation chamber is controlled by control valve.Final concentrate is delivered to cyclone by discharging pump, and bottom cyclone, concentrated solution enters crystallizer, and crystallizer bottom is provided with extension upward type discharge valve to control the flow of material, enters centrifuge be separated containing solid suspension.Centrifuge mother liquor enters mother liquor tank, and mother liquor tank establishes liquid level teletransmission to show, and the liquid level of mother liquor tank is controlled by the start and stop of mother liquor pump.
The beneficial effects of the utility model: provide a kind of high-efficiency evaporating enrichment facility being applicable to the industry haline waters such as electric power, chemical industry, desalinization; Especially containing the evaporating of the zero-emission industrial wastewater of high salt concentration waste water.1st effective evaporator is that the application of self-loopa crystallizing evaporator can make last crystallized product be separated, and has high separating effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is effect crystallizer and a self-loopa crystallizing evaporator structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1:: an effect heater E1, Φ 1000; One effect crystallizer C1; Φ 2500; Two effect crystallizing evaporator E2 Φ 900/ Φ 2000; Triple effect evaporation crystallizer E3 Φ 900/ Φ 2200; Middle storage tank T4; Triple effect condensate water pot T3 volume: 16m3; Two effect condensate water pot T2 volume: 6m3; One effect condensate water pot T1 volume: 8m3; One effect axial-flow pump P1
Power: 70kW; Two effect circulating pump P2 power: 22kW; Triple effect cycle pump P3 power: 22kW; Feed pump P4, mother liquor pump P5 power: 30kW.
In Fig. 2: dosing mouth 1, enriched chamber 2, manhole 2-1, the condensation mouth of a river 3, separation chamber 4, heating clamber 5, inner endless tube 6, primary steam import 7, distributor 8, upper feed inlet 9, drain 10, indirect steam outlet 11, underfeed mouth 12, discharging opening 13.
Flow direction of material: the material liquid from head tank (user provides for oneself) enters triple effect evaporator evaporation and concentration by feeding pump after preheater, triple effect cycle pump part feed liquid is relied on to realize effect Inner eycle, part feed liquid sends into 2nd effect evaporator evaporation and concentration, two effect circulating pump part feed liquids are relied on to realize effect Inner eycle, part feed liquid is sent into 1st effective evaporator and is continued evaporation and concentration, realizes effect Inner eycle by an effect axial-flow pump.Concentrated when reaching finite concentration, concentrated solution is delivered to movable flow device through discharging pump extraction, and upper clear supernate is back to an effect separation chamber; After bottom solidliquid mixture enters thickener crystallization, carry out Separation of Solid and Liquid to centrifuge.Centrifuge mother liquor enters mother liquor tank and returns triple effect evaporator continuation evaporation and concentration by mother liquor pump, if mother liquor has influence on salt-pepper noise after accumulating a period of time, will consider that mother liquor is arranged a part outward makes otherwise processed.Steam flow: the raw steam that boiler comes enters into the thermal source of shell side as an effect of an effect heating clamber, the secondary vapour of one effect separation chamber's flash distillation enters into the thermal source of shell side as two effects of two effect heating clambers, the secondary vapour of same two effect separation chamber's flash distillations enters into the thermal source of shell side as triple effect of triple effect heating clamber, and the secondary vapour of triple effect separation chamber flash distillation collects condensate water pot reprocessing through indirect condenser condensation.
The flow direction of condensed water: reclaim after the steam condensate (SC) flash distillation that an effect heating clamber produces; The condensed water of two effect heating clambers enters into the shell side flash distillation of triple effect heating clamber, then together collects condensate water pot with the condensed water of triple effect heating clamber; The condensation water collection of indirect condenser, to condensate water pot, is discharged out-of-bounds after the cooling of preheater preheats material liquid.
1st effective evaporator and self-loopa crystallizing evaporator, comprise enriched chamber 2, separation chamber 4, heating clamber 5, separation chamber is positioned in the middle of enriched chamber and separation chamber, and heating clamber 5 is tube side formula evaporating heat exchangers, vapor communication tube side, and the passage of material is shell side, tube side is the endless tube 6 of even coiling, and tube side connects steam inlet 7, tube side formula evaporating heat exchanger is VERTICAL TUBE structure, the upper end of tube side formula evaporating heat exchanger is material inlet, and material inlet flows to shell side by distributor 8, and the bottom of enriched chamber 2 is discharging opening; The centre of tube side formula evaporating heat exchanger is provided with a Matter Transfer pipeline, and the distributor 8 of material inlet is led in the upper end of Matter Transfer pipeline, be provided with a circulating pump be communicated with bottom discharge mouth preferably a parallel pipeline be connected with the lower end of Matter Transfer pipeline.Enriched chamber 2 is provided with manhole 2-1; Heating clamber is provided with primary steam import 7, indirect steam outlet 11.
Because there is crystallization, the design of separation chamber should meet the requirement of vapor-liquid separation, ensure secondary vapour vapour speed, reduce entrainment, meet the requirement of crystal growth again, the tube side formula heat exchange tube diameter of heating clamber and length, liquid circulation amount, the flow velocity of tube side, the temperature rise of liquid are all custom-designed according to the needs of crystal system, ensure that circulation fluid just produces in heat exchanger tube certain overheated, do not undergo phase transition, the tendency thus minimizing fouling scabs, can improve the time interval between twice cleaning to greatest extent.
Evaporator section ensures the design of product granularity:
1). select suitable vaporization chamber form.This covering device two is imitated and triple effect separation chamber is to realize gas-liquid separation, adopts common separation chamber's version.One effect crystallizer one will realize gas-liquid separation, two crystallizations that will ensure mixed salt, and three will ensure that clear liquid circulation reduces equipment attrition, and this device is applicable to be with brilliant material run and can effectively prevent from managing interior stammerer clogging, and guarantee system is normally run.
2) select rational chamber volume, control the feed liquid time of staying, thus ensure crystal growth time.
3) control secondary nucleation phenomenon: maintain stable degree of supersaturation, prevent crystallizer in subrange, in the mixed zone as two stream stocks of evaporating surface, variable concentrations, produce the fluctuation of degree of supersaturation.The growth rate of restriction crystal.Carry out sending crystallizer back to again after heating makes thin brilliant dissolving to solution.
4) select reasonable pump-type, prevent die break, produce a large amount of thin brilliant, and the crystal grain of growing up is broken again.
Ensure condensed water index:
1) secondary vapour gas speed is controlled, the diameter of choose reasonable separation chamber and gas-liquid separated space.
2) quality of process condensate water depends primarily on the effect of demister.Adopt venetian blind type demister, to guarantee high technology condensate quality, and use a set of automatic cleaning system, by nozzle ring injection condensing water periodic cleaning demister.
All water pumps with mechanical seal all need to seal water.Clean low TDS and the water of low TSS can coolant seal face, keep the clean of sealing surfaces, extend the life-span of water pump packing.
Sealing water is used for feeding pump, axial-flow pump, discharging pump and condensate pump.Under design conditions, the leakage of fraction may be entered into inside fresh water (FW) by sealing goes.Under the normal operating not damaging mechanical seal, circulation seal water can not be polluted by fresh water (FW).Only sealing water pressure lower than under pump operated pressure condition, sealing water just can be polluted.
Cleaning systems:
When system is at design parameter operated within range, and during working procedure according to technological operation code defined, strong brine crystallizer technique can eliminate the requirement of frequent cleaning systems.
When normally driving, can judge that carrying out system washes online according to the condition of production in good time, removing the soluble-salt of residual wall built-up in system.Scavenging period counts Design cooling load.Regular heat cleaning can reduce strict Chemical cleaning or the number of times of mechanical cleaning.
If need cleaning to insolubility salt, then strong brine crystallizer can complete this task in design.The all vessel surfaces contacted with concentrated salt solution all can directly touch, to check, and chemistry or mechanical system can be adopted when needed to clean.The most important thing is to clean Heat transfer face.Strong brine Latent Heat is that tube side walked by strong brine, during cleaning, can touch inner surface of tube from the either end of heat exchanger tube.By using cleaning solution, identical mode of taking to circulate with strong brine carries out circulation to realize Chemical cleaning.When technique or misoperation cause serious scale, adopt mechanical cleaning that all heat-transfer areas can be made to return to clean state.The operator of strong brine crystallizer system is usually annual to carry out once to twice mechanical/chemical cleaning its system.
Brine distribution device: in strong brine falling film evaporator, circulating brine is declined in the form of a film by gravity in vertical tube.This design can cause high heat transfer coefficient under medium pump energy and high steam washing condition.For keeping a kind of uniform film, and on complete wetting tube-surface.
Force heating clamber: the heat exchange tube diameter of heating clamber and length, liquid circulation amount, the flow velocity of tube side, the temperature rise of liquid are all custom-designed according to the needs of crystal system, ensure that circulation fluid just produces in heat exchanger tube certain overheated, do not undergo phase transition, the tendency thus minimizing fouling scabs, can improve the time interval between twice cleaning to greatest extent.
The raw steam of system arranges pressure and temperature teletransmission, and controls the stable of an effect fluid temperature by steam control valve.The amount of raw steam is undertaken monitoring and cumulative record by remote control liquid flowmeter.
Need the haline water of evaporation process to enter head tank, head tank establishes liquid level teletransmission to show.Raw material is delivered into vapo(u)rization system through feedstock pump, and scene has Pressure gauge to show pump discharge pressure.Raw material enters triple effect evaporator, and concentrate at triple effect heating heating indoor, the solution after concentrated enters triple effect separation chamber and carries out vapor-liquid separation, and triple effect separation chamber arranges pressure, temperature and liquid level teletransmission display.The liquid level of triple effect separation chamber is controlled by control valve, and the inlet amount of raw material is undertaken monitoring and cumulative record by remote control liquid flowmeter.Concentrate enters 2nd effect evaporator by triple effect cycle pump and continues evaporation and concentration, carries out vapor-liquid separation in two effect separation chambers, and two effect separation chambers arrange pressure, temperature and liquid level teletransmission display.The liquid level of two effect separation chambers is controlled by control valve.Two effect concentrates enter 1st effective evaporator by two effect circulating pumps and continue evaporation and concentration, in an effect crystallizer, carry out vapor-liquid separation, and an effect separation chamber arranges pressure, temperature and liquid level teletransmission display.The liquid level of one effect separation chamber is controlled by control valve.Final concentrate is delivered to cyclone by discharging pump, and bottom cyclone, concentrated solution enters crystallizer, and crystallizer bottom is provided with extension upward type discharge valve to control the flow of material, enters centrifuge be separated containing solid suspension.Centrifuge mother liquor enters mother liquor tank, and mother liquor tank establishes liquid level teletransmission to show, and the liquid level of mother liquor tank is controlled by the start and stop of mother liquor pump.
The condensed water that one effect heating clamber produces is by reclaiming after flash tank flash distillation, flash tank establishes pressure and liquid level teletransmission display, the liquid level of flash tank is controlled by the start and stop of pump, the condensed water that two effect heating clambers produce enters triple effect heating clamber, the condensed water that triple effect heating clamber produces enters secondary vapour condensate water pot, the condensed water of indirect condenser also enters secondary vapour condensate water pot, secondary vapour condensate water pot establishes pressure and liquid level teletransmission display, and the liquid level of secondary vapour condensate water pot is controlled by the start and stop of secondary vapour condensate pump.Secondary vapour condensed water is discharged out-of-bounds after preheater cooling, the import and export of preheater establish on the spot with teletransmission Temperature displaying.Conductance in preheater exit position to distilled water is monitored continuously.The discharge rate of secondary vapour condensed water is undertaken monitoring and cumulative record by remote control liquid flowmeter.The upper water pressure of cooling circulating water, upper water and return water temperature both can also can show at scene in teletransmission.
Although the utility model with preferred embodiment disclose as above, so itself and be not used to limit the utility model.Have in the utility model art and usually know the knowledgeable, not departing from spirit and scope of the present utility model, when being used for a variety of modifications and variations.Therefore, protection domain of the present utility model is when being as the criterion depending on those as defined in claim.

Claims (2)

1. the evaporating of industrial wastewater, it is characterized in that comprising the 1st effective evaporator of series connection, 2nd effect evaporator and triple effect evaporator, the import of materail tube connects the material inlet of triple effect heating clamber, the material outlet of triple effect heating clamber connects the material inlet of 2nd effect evaporator, and 2nd effect evaporator material outlet connects the material inlet of 1st effective evaporator; The import of raw steam connects 1st effective evaporator, and the indirect steam through 1st effective evaporator connects the steam inlet of 2nd effect evaporator, and the outlet of 2nd effect evaporator indirect steam connects the steam inlet of triple effect evaporator, and the steam (vapor) outlet of triple effect evaporator connects heat exchanger.
2. the evaporating of industrial wastewater according to claim 1, it is characterized in that 1st effective evaporator is self-loopa crystallizing evaporator, comprise enriched chamber, separation chamber, heating clamber, separation chamber is positioned in the middle of enriched chamber and separation chamber, heating clamber is tube side formula evaporating heat exchanger, vapor communication tube side, and the passage of material is shell side, tube side is the endless tube of even coiling, tube side connects steam inlet, tube side formula evaporating heat exchanger is VERTICAL TUBE structure, the upper end of tube side formula evaporating heat exchanger is material inlet, material inlet flows to shell side by distributor, the bottom of enriched chamber is discharging opening, the centre of tube side formula evaporating heat exchanger is provided with a Matter Transfer pipeline, and the distributor of material inlet is led in the upper end of Matter Transfer pipeline, and be provided with a circulating pump and be communicated with bottom discharge mouth, discharging opening parallel pipeline is connected with the lower end of Matter Transfer pipeline.
CN201520481397.0U 2015-07-06 2015-07-06 Industrial waste water's evaporation processing apparatus Expired - Fee Related CN204973107U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105854325A (en) * 2016-05-27 2016-08-17 苏州乔发环保科技股份有限公司 Triple-effect central cyclic evaporating system and evaporating technology thereof
CN106045183A (en) * 2016-08-04 2016-10-26 中电环保股份有限公司 High salinity wastewater evaporation device
CN109529401A (en) * 2019-01-28 2019-03-29 无锡荣丰生物工程有限公司 Trimethylolethane trimethacrylate imitates evaporating, concentrating and crystallizing system and its application
CN111408154A (en) * 2020-04-29 2020-07-14 苏州他山石环保科技有限公司 Novel efficient triple-effect evaporator and working method thereof
CN114887338A (en) * 2022-07-12 2022-08-12 安丘市恒通玻璃钢有限公司 Tower-type evaporating pipe for industrial wastewater equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105854325A (en) * 2016-05-27 2016-08-17 苏州乔发环保科技股份有限公司 Triple-effect central cyclic evaporating system and evaporating technology thereof
CN106045183A (en) * 2016-08-04 2016-10-26 中电环保股份有限公司 High salinity wastewater evaporation device
CN106045183B (en) * 2016-08-04 2019-01-08 中电环保股份有限公司 A kind of high-salt wastewater vaporising device
CN109529401A (en) * 2019-01-28 2019-03-29 无锡荣丰生物工程有限公司 Trimethylolethane trimethacrylate imitates evaporating, concentrating and crystallizing system and its application
CN111408154A (en) * 2020-04-29 2020-07-14 苏州他山石环保科技有限公司 Novel efficient triple-effect evaporator and working method thereof
CN114887338A (en) * 2022-07-12 2022-08-12 安丘市恒通玻璃钢有限公司 Tower-type evaporating pipe for industrial wastewater equipment
CN114887338B (en) * 2022-07-12 2022-09-09 安丘市恒通玻璃钢有限公司 Tower-type evaporating pipe for industrial wastewater equipment

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Granted publication date: 20160120

Termination date: 20170706