CN112408531A - Evaporation salt making system - Google Patents
Evaporation salt making system Download PDFInfo
- Publication number
- CN112408531A CN112408531A CN202011189416.4A CN202011189416A CN112408531A CN 112408531 A CN112408531 A CN 112408531A CN 202011189416 A CN202011189416 A CN 202011189416A CN 112408531 A CN112408531 A CN 112408531A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- preheating device
- falling film
- separator
- production system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001704 evaporation Methods 0.000 title claims abstract description 16
- 230000008020 evaporation Effects 0.000 title claims abstract description 15
- 150000003839 salts Chemical class 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000011552 falling film Substances 0.000 claims abstract description 35
- 239000012452 mother liquor Substances 0.000 claims abstract description 15
- 238000002425 crystallisation Methods 0.000 claims abstract description 14
- 230000008025 crystallization Effects 0.000 claims abstract description 14
- 210000003298 dental enamel Anatomy 0.000 claims abstract description 12
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims abstract description 11
- 239000001103 potassium chloride Substances 0.000 claims abstract description 7
- 235000011164 potassium chloride Nutrition 0.000 claims abstract description 7
- 159000000000 sodium salts Chemical class 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 27
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 abstract description 35
- 239000002956 ash Substances 0.000 description 24
- 239000013078 crystal Substances 0.000 description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- 239000010881 fly ash Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000010797 grey water Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010813 municipal solid waste Substances 0.000 description 4
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/08—Thin film evaporation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses an evaporation salt-making system, which comprises a preheating device, a falling film evaporator, a falling film separator, an intermediate tank, a forced circulation evaporator, a crystallization separator, a mother liquor tank and an enamel kettle which are sequentially connected, wherein the crystallization separator is connected with a first centrifugal machine for forming sodium salt, and the enamel kettle is connected with a second centrifugal machine for forming sylvite. The evaporation salt-making system can effectively obtain industrial-grade salt from the ash washing water.
Description
Technical Field
The invention belongs to the technical field of waste incineration fly ash treatment, and particularly relates to an evaporation salt making system.
Background
The waste fly ash is a residue collected in a flue gas purification system of a waste incineration power plant, generally contains organic pollutants such as dioxin, furan and the like and soluble heavy metals such as Cd, Pb, Cu, Zn, Cr and the like, has great harm to the environment and human health, and must be safely and effectively treated. According to the Standard for controlling pollutants for municipal solid waste landfill (GB16889-2008), fly ash from incineration of garbage must be subjected to certain pretreatment before entering a safe landfill for safe landfill, or solidified to reduce the risk thereof, so that the fly ash from incineration of garbage can be subjected to sanitary landfill after reaching the control requirement for leaching heavy metals from a sanitary landfill. The existing fly ash washing system has poor washing effect and large fly ash loss caused in the treatment process.
The garbage fly ash can generate ash washing water after treatment, the ash washing water has complex components, potassium and sodium salts with certain concentrations are contained in the ash washing water, potassium salt resources in China are relatively scarce, and if the potassium and sodium salts can be prepared by evaporating the ash washing water, the vacancy of potassium salts in China can be relieved.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an evaporation salt-making system, and aims to effectively obtain industrial-grade salt from ash washing water.
In order to achieve the purpose, the invention adopts the technical scheme that: the evaporation salt production system comprises a preheating device, a falling film evaporator, a falling film separator, an intermediate tank, a forced circulation evaporator, a crystallization separator, a mother liquor tank and an enamel kettle which are sequentially connected, wherein the crystallization separator is connected with a first centrifugal machine for forming sodium salt, and the enamel kettle is connected with a second centrifugal machine for forming sylvite.
The preheating device comprises a first heat exchanger, a second heat exchanger and a third heat exchanger which are sequentially connected, the first heat exchanger is a condensed water plate type heat exchanger, the second heat exchanger is a plate type heat exchanger containing non-condensable gas, and the second heat exchanger is a live steam plate type heat exchanger.
The falling-film evaporator is connected with a conveying pipeline for receiving the washing grey water from the preheating device, and the conveying pipeline is provided with a plurality of conveying pipelines which are connected with different parts of the falling-film evaporator.
And the heating pipe is arranged on the outer surface of the conveying pipeline, is connected with the preheating device and receives steam from the preheating device and transmits heat to the conveying pipeline.
The heating pipes are arranged in a plurality and all the heating pipes are uniformly distributed on the outer surface of the conveying pipeline along the circumferential direction.
The evaporation salt-making system can effectively obtain industrial-grade salt from the ash washing water.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic diagram of the evaporative salt production system of the present invention;
FIG. 2 is a schematic view of the connection of a delivery conduit to a heating tube;
labeled as: 1. a preheating device; 2. a falling film evaporator; 3. a falling film separator; 4. an intermediate tank; 5. a forced circulation evaporator; 6. a crystallization separator; 7. a mother liquor tank; 8. an enamel kettle; 9. a delivery conduit; 10. heating a tube; 11. a first centrifuge; 12. a second centrifuge.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
It should be noted that, in the following embodiments, the "first" and "second" do not represent an absolute distinction relationship in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.
As shown in figure 1, the invention provides an evaporation salt-making system, which comprises a preheating device 1, a falling-film evaporator 2, a falling-film separator 3, an intermediate tank 4, a forced circulation evaporator 5, a crystallization separator 6, a mother liquor tank 7 and an enamel kettle 8 which are connected in sequence, wherein the crystallization separator 6 is connected with a first centrifuge 11 for forming sodium salt, and the enamel kettle 8 is connected with a second centrifuge 12 for forming potassium salt.
Specifically, as shown in fig. 1, a water outlet of the preheating device 1 is connected with a water inlet of the falling film evaporator 2, a water outlet of the falling film evaporator 2 is connected with a water inlet of the falling film separator 3, a water outlet of the falling film separator 3 is connected with a water inlet of the intermediate tank 4, a water outlet of the intermediate tank 4 is connected with a water inlet of the forced circulation evaporator 5, a water outlet of the forced circulation evaporator 5 is connected with a water inlet of the crystal separator 6, a water outlet of the crystal separator 6 is connected with a water inlet of the mother liquor tank 7, and a water outlet of the mother liquor tank 7 is connected with a water inlet of the enamel kettle 8. The effluent of the preheating device 1 enters a falling-film evaporator 2, the effluent of the falling-film evaporator 2 enters a falling-film separator 3, the effluent of the falling-film separator 3 enters an intermediate tank 4, the effluent of the intermediate tank 4 enters a forced circulation evaporator 5, the effluent of the forced circulation evaporator 5 enters a crystallization separator 6, the effluent of the crystallization separator 6 enters a mother liquor tank 7, and the effluent of the mother liquor tank 7 enters an enamel kettle 8. The preheating device 1 is used for preheating the ash washing water so that the temperature of the ash washing water reaches a set value.
And (3) the preheated ash washing water enters the falling film evaporator 2, meanwhile, the raw steam enters the falling film evaporator 2, the ash washing water and the raw steam exchange heat, and the ash washing water and the raw steam exchange heat for multiple times in the falling film evaporator 2 to enable the ash washing water to meet the evaporation requirement. The water washing ash in the falling film evaporator 2 enters the falling film separator 3 for vapor-liquid separation, steam passes through a defoaming device in the falling film separator 3 and enters a gas washing system for gas washing, the steam after gas washing enters a steam compressor, the temperature of the steam reaches a set value through compression work, and the compressed steam respectively enters the falling film evaporator 2 and the forced circulation evaporator 5 for heat exchange with the water washing ash. The ash washing water in the falling film separator 3 enters the intermediate tank 4 again, and the ash washing water in the intermediate tank 4 enters the forced circulation evaporator 5 again for evaporation and crystallization. And the ash washing water in the forced circulation evaporator 5 enters the crystallization separator 6 again for vapor-liquid separation, secondary steam, crystallized ash washing water and sodium chloride crystals are generated in the crystallization separator 6 through separation, the secondary steam enters a steam compressor after impurities are removed through a gas washing tower, the steam temperature reaches a set value through compression work, the sodium chloride crystals enter the thickener to increase the concentration, the sodium chloride crystals in the thickener enter the first centrifugal machine 11 again, and the sodium chloride crystals with lower water content are obtained after centrifugation, namely sodium salt is obtained. The liquid generated by the thickener and the liquid separated by the first centrifuge 11 enter the mother liquor tank 7, and the mother liquor in the mother liquor tank 7 enters the forced circulation evaporator 5 for continuous evaporation after being preheated, so that the circulation of the mother liquor in the system is realized; and (3) after the crystallized ash washing water meets the requirement of extracting and producing potassium salt, feeding the mother liquor into an enamel kettle 8 for cooling and crystallizing to produce potassium chloride, separating out potassium chloride crystals in the cooling process by adopting a combination form of vacuum flash evaporation and circulating cooling water cooling, feeding the mother liquor containing the potassium chloride crystals into a second centrifuge 12, and performing centrifugal separation by the second centrifuge 12 to obtain the potassium chloride crystals, namely obtaining the potassium salt.
Preferably, the preheating device 1 comprises a first heat exchanger, a second heat exchanger and a third heat exchanger which are sequentially connected, the first heat exchanger is a condensed water plate heat exchanger, the second heat exchanger is a plate heat exchanger containing non-condensable gas, and the second heat exchanger is a steam plate heat exchanger. The washing grey water flows into the first heat exchanger, the second heat exchanger and the third heat exchanger in sequence, the preheating device 1 has high preheating efficiency on the washing grey water, the washing grey water can be rapidly heated and saturated rapidly, and the effect of rapid preheating is achieved.
As shown in fig. 2, the falling-film evaporator 2 is connected to a supply line 9 for receiving the scrubbing water from the preheating device 1, the supply line 9 being provided in a plurality and the respective supply line 9 being connected to different points of the falling-film evaporator 2. The conveying pipeline 9 guides the ash washing water from the preheating device 1 to the falling-film evaporator 2, the water inlet end of the conveying pipeline 9 is connected with a water pump, the water outlet end of the conveying pipeline 9 is connected with the falling-film evaporator 2, each conveying pipeline 9 is respectively connected with a water pump, the water pump is connected with the preheating device 1, and after the water pumps are operated, liquid in the preheating device 1 is pumped to the falling-film evaporator 2 through the conveying pipeline 9. The conveying pipelines 9 are at least two, one of the water pumps can be started during working, the other water pump serves as a backup, the safety problem caused by mechanical and electrical faults of the water pump is avoided, and the safety and the redundancy of the system are further improved.
Preferably, as shown in fig. 2, a heating pipe 10 is disposed on an outer surface of the delivery pipe 9, the heating pipe 10 is connected to the preheating device 1, and the heating pipe 10 receives steam from the preheating device 1 and transfers heat to the delivery pipe 9. In the process that the ash washing water flows through the conveying pipeline 9, the conveying pipeline 9 is kept at a certain temperature through continuous heat transfer of the heating pipe 10 to the conveying pipeline 9, the conveying pipeline 9 transfers heat to the inner ash washing water, and therefore the temperature of the ash washing water is prevented from being reduced too much, and especially the heat loss is reduced under the condition of low ambient temperature.
The heating pipe 10 is a hollow structure, the heating pipe 10 is made of a material with good heat conductivity, and the heating pipe 10 is preferably a copper pipe. Heating pipe 10 is fixed to be set up on pipeline 9's outer disc, the length direction of heating pipe 10 parallels with pipeline 9's length direction, the one end on the length direction of heating pipe 10 sets up steam inlet, the other end on the length direction of heating pipe 10 sets up steam outlet, the steam inlet of heating pipe 10 is connected with preheating device 1's steam outlet, the steam outlet of heating pipe 10 is connected with vapor compressor, preheating device 1 exhaust steam gets into heating pipe 10, heat copper pipe heating pipe 10 that has in the steam transmits to pipeline 9, certain heat preservation effect has been played to pipeline 9.
Preferably, the heating pipes 10 are arranged in a plurality and all the heating pipes 10 are uniformly distributed on the outer surface of the conveying pipeline 9 along the circumferential direction, so that the heat conduction effect is good, and the heat preservation effect on the ash washing water is improved.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (5)
1. The evaporation salt production system is characterized by comprising a preheating device, a falling film evaporator, a falling film separator, an intermediate tank, a forced circulation evaporator, a crystallization separator, a mother liquor tank and an enamel kettle which are sequentially connected, wherein the crystallization separator is connected with a first centrifugal machine for forming sodium salt, and the enamel kettle is connected with a second centrifugal machine for forming sylvite.
2. The evaporation salt production system according to claim 1, wherein the preheating device comprises a first heat exchanger, a second heat exchanger and a third heat exchanger which are connected in sequence, the first heat exchanger is a condensed water plate heat exchanger, the second heat exchanger is a plate heat exchanger containing non-condensable gas, and the second heat exchanger is a steam plate heat exchanger.
3. An evaporative salt production system as claimed in claim 1 or claim 2 wherein the falling film evaporator has associated therewith a feed conduit for receiving wash water from the preheating means, the feed conduit being provided in plurality and each feed conduit being associated with a different part of the falling film evaporator.
4. The evaporative salt production system of claim 3, wherein the delivery conduit has heating tubes disposed on an outer surface thereof, the heating tubes being connected to the preheating device, the heating tubes receiving steam from the preheating device and transferring heat to the delivery conduit.
5. The evaporative salt production system of claim 4 wherein the heating tubes are provided in plurality and all of the heating tubes are uniformly circumferentially distributed on the outer surface of the delivery conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011189416.4A CN112408531A (en) | 2020-10-30 | 2020-10-30 | Evaporation salt making system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011189416.4A CN112408531A (en) | 2020-10-30 | 2020-10-30 | Evaporation salt making system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112408531A true CN112408531A (en) | 2021-02-26 |
Family
ID=74828079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011189416.4A Pending CN112408531A (en) | 2020-10-30 | 2020-10-30 | Evaporation salt making system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112408531A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080017326A1 (en) * | 2004-12-24 | 2008-01-24 | Jeong-Ho Hong | Distillation or Evaporation Method and Equipment for Salt Water or Sort of Fluid by Reheated Steam at Multiple Effect Evaporation System with Chamber of Horizontal Plate Type Heat Exchanger |
| CN105016555A (en) * | 2015-07-18 | 2015-11-04 | 北京建筑材料科学研究总院有限公司 | Garbage fly ash water washing liquid evaporation desalination system and method |
| CN107062952A (en) * | 2017-02-13 | 2017-08-18 | 中国核动力研究设计院 | A kind of two-phase flow tube shell type heat exchanger and its stabilising arrangement |
| CN108191135A (en) * | 2018-01-31 | 2018-06-22 | 北京中科国润环保科技有限公司 | A kind of incineration of refuse flyash or kiln ash water lotion evaporation salt making system and method |
| CN207570385U (en) * | 2017-10-26 | 2018-07-03 | 浙江垠桥能源科技发展有限公司 | A kind of heat exchange unit |
| CN109095531A (en) * | 2018-09-12 | 2018-12-28 | 深圳市瑞升华科技股份有限公司 | Garbage flying ash wash water recycling treatment process and equipment |
| CN208603750U (en) * | 2018-06-07 | 2019-03-15 | 亿川科技(成都)有限责任公司 | A kind of desulfurization wastewater distributor |
-
2020
- 2020-10-30 CN CN202011189416.4A patent/CN112408531A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080017326A1 (en) * | 2004-12-24 | 2008-01-24 | Jeong-Ho Hong | Distillation or Evaporation Method and Equipment for Salt Water or Sort of Fluid by Reheated Steam at Multiple Effect Evaporation System with Chamber of Horizontal Plate Type Heat Exchanger |
| CN105016555A (en) * | 2015-07-18 | 2015-11-04 | 北京建筑材料科学研究总院有限公司 | Garbage fly ash water washing liquid evaporation desalination system and method |
| CN107062952A (en) * | 2017-02-13 | 2017-08-18 | 中国核动力研究设计院 | A kind of two-phase flow tube shell type heat exchanger and its stabilising arrangement |
| CN207570385U (en) * | 2017-10-26 | 2018-07-03 | 浙江垠桥能源科技发展有限公司 | A kind of heat exchange unit |
| CN108191135A (en) * | 2018-01-31 | 2018-06-22 | 北京中科国润环保科技有限公司 | A kind of incineration of refuse flyash or kiln ash water lotion evaporation salt making system and method |
| CN208603750U (en) * | 2018-06-07 | 2019-03-15 | 亿川科技(成都)有限责任公司 | A kind of desulfurization wastewater distributor |
| CN109095531A (en) * | 2018-09-12 | 2018-12-28 | 深圳市瑞升华科技股份有限公司 | Garbage flying ash wash water recycling treatment process and equipment |
Non-Patent Citations (1)
| Title |
|---|
| 化学工业部人事教育司等: "《化工管路安装与维修》", 化学工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2006094437A1 (en) | A method and an multi-effect evaporation for waste water of alkylene oxides | |
| CN101786754A (en) | Zero-emission treatment process for salt-containing wastewater | |
| CN109095531A (en) | Garbage flying ash wash water recycling treatment process and equipment | |
| CN103657122A (en) | Sextuple-effect evaporation device | |
| CN106746110A (en) | A kind of device and processing method for processing high ammonia nitrogen and high salt waste water | |
| CN106430893A (en) | Oil sludge resourceful treatment system | |
| CN111977733A (en) | Complete device and process for recycling salt or nitrate from high-salinity wastewater through fractional crystallization | |
| CN212559531U (en) | Complete equipment for recycling salt or nitrate from high-salinity wastewater by means of fractional crystallization | |
| CN203591603U (en) | Sextuple-effect evaporator | |
| CN112390444A (en) | Evaporation salt-making method | |
| CN114772671A (en) | Two-stage MVR single-effect forced circulation evaporation production device and method for salt-containing wastewater | |
| CN112408531A (en) | Evaporation salt making system | |
| CN113082749A (en) | Treatment method and system for evaporation crystallization and secondary steam purification of fly ash water washing liquid | |
| CN210117305U (en) | Heat pump low temperature divides effluent treatment plant of salt | |
| CN206337115U (en) | A kind of MVR ammonia still processs integrated apparatus | |
| CN110228888B (en) | System and method for quality-separating purification of potassium sodium salt of fly ash water washing liquid | |
| CN202482062U (en) | Device for extracting ammonium thiosulfate and ammonium thiocyanate from desulfurization waste liquid | |
| CN216073129U (en) | High-concentration landfill leachate treatment device | |
| CN212998429U (en) | Heat recovery low-temperature normal-pressure evaporator | |
| CN104014144A (en) | Multiple-effect evaporation system evaporation condensation water heat energy reutilizationoun device | |
| CN212269509U (en) | High concentration waste water evaporation crystallization drying device | |
| CN113426151A (en) | Device and method for solvent DMSO rectification recovery process in carbon fiber production process | |
| CN205973859U (en) | Handle heavy metal wastewater's vaporization system | |
| CN208667144U (en) | It is a kind of that the waste water preprocessing system containing n-butyl acrylate is handled using vaporizing extract process | |
| CN205740616U (en) | A kind of Ta Neishi rectification under vacuum system purified for low temperature seawater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210226 |