CN108083299A - A kind of potassium nitrate crystal production system - Google Patents

A kind of potassium nitrate crystal production system Download PDF

Info

Publication number
CN108083299A
CN108083299A CN201810049378.9A CN201810049378A CN108083299A CN 108083299 A CN108083299 A CN 108083299A CN 201810049378 A CN201810049378 A CN 201810049378A CN 108083299 A CN108083299 A CN 108083299A
Authority
CN
China
Prior art keywords
water pump
water
cooling
potassium nitrate
cooling storehouse
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.)
Granted
Application number
CN201810049378.9A
Other languages
Chinese (zh)
Other versions
CN108083299B (en
Inventor
赵晨
赵家春
梁廷刚
熊云生
田野
李武平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Jinlida K Industry LLC
Original Assignee
Jiangxi Jinlida K Industry LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangxi Jinlida K Industry LLC filed Critical Jiangxi Jinlida K Industry LLC
Priority to CN201810049378.9A priority Critical patent/CN108083299B/en
Publication of CN108083299A publication Critical patent/CN108083299A/en
Application granted granted Critical
Publication of CN108083299B publication Critical patent/CN108083299B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D9/00Nitrates of sodium, potassium or alkali metals in general
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D9/00Crystallisation
    • B01D9/0004Crystallisation cooling by heat exchange
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Fertilizers (AREA)

Abstract

The invention discloses a kind of potassium nitrate crystal production systems,Including evaporating chamber,Cooling storehouse,Heating plate,First water pump,Second water pump,3rd water pump,Refrigerator,Cooling tube,First filter,Second filter,Spray tube,Heating controller,First water pipe,Second water pipe,3rd water pipe and water tank,The evaporating chamber bottom is fixed with heating plate,First filter is equipped in the evaporating chamber,And first filter is connected with the first water pipe,First water pipe is connected through evaporating chamber one side with the first water pump input pipe,The first water pump efferent duct is connected with spray tube,The spray tube passes through cooling storehouse one side,Cooling tube is equipped in the cooling storehouse,And cooling tube is folded form,The cooling storehouse one side is fixed with water tank,The potassium nitrate crystal operation system structure is simple,By evaporating precipitated sodium chloride,Potassium nitrate is precipitated in cooling,Can high efficiency prepare potassium nitrate,The circulatory system effectively improves the purity that potassium nitrate is precipitated,It is easy to operate,Safety.

Description

A kind of potassium nitrate crystal production system
Technical field
The present invention relates to potassium nitrate crystal production technical fields, and in particular to a kind of potassium nitrate crystal production system.
Background technology
Potassium nitrate is very extensive in agricultural, commodities market purposes, and potassium nitrate belongs to binary compound fertilizer.Potassium nitrate is that no chlorine potassium, nitrogen are multiple Expect that nutrient for plants potassium, the total content of nitrogen have good physicochemical properties up to 50% or so in Hefei.Potassium nitrate is applied to Tobacco has fertilizer efficiency high, easily absorbs, and promotes Winter wheat, increases tobacco production, to improving cigarette quality important role.
Potassium nitrate use is more, so be also essential industry for the preparation of potassium nitrate, but present technological system is for nitric acid Preparing for potassium is extremely complex, and efficiency is low, also has some poor sundries, causes purity not high.
The content of the invention
The purpose of the invention is to overcome the deficiencies in the prior art, and provide a kind of simple in structure, efficient, cost The potassium nitrate crystal production system low, purity is high, including evaporating chamber, cooling storehouse, heating plate, the first water pump, the second water pump, the 3rd Water pump, refrigerator, cooling tube, first filter, the second filter, spray tube, heating controller, the first water pipe, the second water pipe, 3rd water pipe and water tank, the evaporating chamber bottom are fixed with heating plate, and first filter, and the first mistake are equipped in the evaporating chamber Filter is connected with the first water pipe, and first water pipe is connected through evaporating chamber one side with the first water pump input pipe, and described One water pump efferent duct is connected with spray tube, and the spray tube passes through cooling storehouse one side, and spray tube is located at cooling storehouse top, described Spray tube lower part is provided with several apertures, is equipped with cooling tube in the cooling storehouse, and cooling tube is folded form, the cooling storehouse one side Water tank is fixed with, described cooling tube one end is connected through cooling storehouse with water tank, and the 3rd water pump input pipe is connected with water tank Logical, the efferent duct of the 3rd water pump is connected with the input pipe of refrigerator, and the one end of the cooling tube away from water tank passes through cold But storehouse is connected with refrigerator output terminal, and the second filter, and the second filter and the second water pipe phase are equipped in the cooling storehouse Connection, second water pipe are connected through cooling storehouse with the second water pump input pipe, the second water pump efferent duct and the 3rd water Pipe one end is connected, and the other end of the 3rd water pipe stretches into the top of evaporating chamber.
Preferably, the evaporating chamber one side is fixed with heating controller, and heating controller is electrically connected with heating plate.
Preferably, the cooling storehouse one side is fixed with control panel, and control panel and the first water pump, the second water pump and 3rd water pump is electrically connected.
Preferably, the evaporating chamber bottom side is provided with the first discharge port, and it is close to be equipped with first in the first discharge port Blocking.
Preferably, the cooling storehouse bottom side is provided with the second discharge port, and it is close to be equipped with second in the second discharge port Blocking.
The beneficial effects of the invention are as follows:First, mixed liquor to be crystallized is added in into evaporating chamber, then by the way that temperature is controlled to control Device opens heating plate work, and is heated to certain temperature, and mixeding liquid temperature rise to be crystallized starts to be evaporated, due to mixed liquor water Divide and largely evaporated, sodium chloride can gradually be precipitated, and be then turned on the first water pump and the liquid after evaporation is extracted into spray tube, the first mistake Filter can filter the sodium chloride of precipitation, open the 3rd water pump by control panel and refrigerator works, and drive cooling liquid cold But cycled in pipe, the liquid after evaporation is sprayed by spray tube to cooling pipe surface, since temperature reduces potassium nitrate solubility meeting It drastically reduces, potassium nitrate crystals can be precipitated in the bottom of cooling storehouse, then open the second water pump by control panel, by not analysis completely The liquid for going out potassium nitrate is extracted into evaporating chamber again, and the second filter can filter the potassium nitrate crystals of precipitation, further be taken turns It evaporates and cools down, after the completion of task, open the first discharge port of evaporating chamber bottom, the sodium chloride of crystallization is taken out, open and cool down Second discharge port in orlop portion, potassium nitrate crystals are taken out, and work is completed, and the potassium nitrate crystal operation system structure is simple, lead to Pervaporation precipitated sodium chloride, cooling be precipitated potassium nitrate, can high efficiency prepare potassium nitrate, the circulatory system effectively improves precipitation potassium nitrate Purity, it is easy to operate, safety.
Description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the overall structure diagram of the present invention.
In figure:1st, evaporating chamber;2nd, cooling storehouse;3rd, heating plate;4th, the first water pump;5th, the second water pump;6th, the 3rd water pump;7th, make Cooler;8th, cooling tube;9th, first filter;10th, the second filter;11st, the first sealing cover;12nd, the second sealing cover;13rd, spray Pipe;14th, heating controller;15th, the second discharge port;16th, the first discharge port;17th, the first water pipe;18th, the second water pipe;19th, the 3rd Water pipe;20 control panels;21 water tanks.
Specific embodiment
Any feature disclosed in this specification, unless specifically stated, can be equivalent by other or with similar purpose Alternative features are replaced.I.e., unless specifically stated, each feature is an example in a series of equivalent or similar characteristics .
A kind of potassium nitrate crystal production system as shown in Figure 1, including evaporating chamber 1, cooling storehouse 2, heating plate 3, the first water Pump the 4, second water pump 5, the 3rd water pump 6, refrigerator 7, cooling tube 8, first filter 9, the second filter 10, spray tube 13, plus Heat controller 14, the first water pipe 17, the second water pipe 18, the 3rd water pipe 19 and water tank 21,1 bottom of evaporating chamber are fixed with heating Plate 3, the evaporating chamber 1 is interior to be equipped with first filter 9, and first filter 9 is connected with the first water pipe 17, first water pipe 17 are connected through 1 one side of evaporating chamber with 4 input pipe of the first water pump, and 4 efferent duct of the first water pump is connected with spray tube 13, institute Spray tube 13 is stated through 2 one side of cooling storehouse, and spray tube 13 is located at 2 top of cooling storehouse, 13 lower part of spray tube is provided with several Aperture, the cooling storehouse 2 is interior to be equipped with cooling tube 8, and cooling tube 8 is folded form, and 2 one side of cooling storehouse is fixed with water tank 21, Described 8 one end of cooling tube is connected through cooling storehouse 2 with water tank 21, and 6 input pipe of the 3rd water pump is connected with water tank 21, institute The efferent duct for stating the 3rd water pump 6 is connected with the input pipe of refrigerator 7, and the described one end of cooling tube 8 away from water tank 21 passes through cold But storehouse 2 is connected with 7 output terminal of refrigerator, and the second filter 10, and the second filter 10 and second are equipped in the cooling storehouse 2 Water pipe 18 is connected, and second water pipe 18 is connected through cooling storehouse 2 with 5 input pipe of the second water pump, and second water pump 5 is defeated Outlet pipe is connected with 19 one end of the 3rd water pipe, and the other end of the 3rd water pipe 19 stretches into the top of evaporating chamber 1, the evaporating chamber 1 One side is fixed with heating controller 14, and heating controller 14 is electrically connected with heating plate 3, the controllable heating of heating controller 14 Plate 3 increases to suitable temperature, is evaporated work, and 2 one side of cooling storehouse is fixed with control panel 20, and control panel 20 with First water pump 4, the second water pump 5 and the 3rd water pump 6, which are electrically connected, concentrates in together multiple operations, facilitates control, can improve work Make rate, 1 bottom side of evaporating chamber is provided with the first discharge port 16, and is equipped with the first sealing-plug in the first discharge port 16 11, after treating work, the side product chlorinated sodium that crystallization is precipitated can be collected from the first discharge port 16, is also convenient for cleaning evaporating chamber 1, 1 bottom side of cooling storehouse is provided with the second discharge port 15, and the second sealing-plug 12 is equipped in the second discharge port 15, treats work After, primary product potassium nitrate can be taken out from the second discharge port 15, facilitate and take out 2 cleaning work of work and cooling storehouse.
The operation principle of present embodiment is:First, mixed liquor to be crystallized is added in into evaporating chamber 1, then passes through control Temperature controller 14 processed opens heating plate 3 and works, and is heated to certain temperature, and mixeding liquid temperature rise to be crystallized starts to be steamed Hair, since mixed liquor moisture is largely evaporated, sodium chloride can gradually be precipitated, and be then turned on the first water pump 4 by the liquid after evaporation Spray tube 13 is extracted into, first filter 9 can filter the sodium chloride of precipitation, and the 3rd water pump 6 and refrigeration are opened by control panel 20 Device 7 works, and cooling liquid is driven to be cycled in cooling tube 8, the liquid after evaporation is sprayed by spray tube 13 to 8 table of cooling tube Face can be drastically reduced since temperature reduces potassium nitrate solubility, and potassium nitrate crystals can be precipitated in the bottom of cooling storehouse 2, then pass through Control panel 20 opens the second water pump 5, the liquid that potassium nitrate is not precipitated completely is extracted into again in evaporating chamber 1, the second filter 10 can filter the potassium nitrate crystals of precipitation, the evaporation and cooling further taken turns, and after the completion of task, open 1 bottom of evaporating chamber First discharge port 16 takes out the sodium chloride of crystallization, opens second discharge port 15 at 2, cooling storehouse bottom, potassium nitrate crystals are taken Go out, work is completed, and the potassium nitrate crystal operation system structure is simple, and by evaporating precipitated sodium chloride, potassium nitrate is precipitated in cooling, can High efficiency prepares potassium nitrate, and the circulatory system effectively improves the purity that potassium nitrate is precipitated, easy to operate, safety.
The invention is not limited in foregoing specific embodiments.The present invention, which expands to, any in the present specification to be disclosed The step of new feature or any new combination and any new method or process disclosed or any new combination.

Claims (5)

1. a kind of potassium nitrate crystal production system, including evaporating chamber(1), cooling storehouse(2), heating plate(3), the first water pump(4), Two water pumps(5), the 3rd water pump(6), refrigerator(7), cooling tube(8), first filter(9), the second filter(10), spray tube (13), heating controller(14), the first water pipe(17), the second water pipe(18), the 3rd water pipe(19)And water tank(21), feature exists In:The evaporating chamber(1)Bottom is fixed with heating plate(3), the evaporating chamber(1)It is interior to be equipped with first filter(9), and the first mistake Filter(9)With the first water pipe(17)It is connected, first water pipe(17)Through evaporating chamber(1)One side and the first water pump(4)It is defeated Enter pipe to be connected, first water pump(4)Efferent duct and spray tube(13)Connection, the spray tube(13)Through cooling storehouse(2) One side, and spray tube(13)Positioned at cooling storehouse(2)Top, the spray tube(13)Lower part is provided with several apertures, the cooling storehouse (2)It is interior to be equipped with cooling tube(8), and cooling tube(8)For folded form, the cooling storehouse(2)One side is fixed with water tank(21), it is described cold But manage(8)One end passes through cooling storehouse(2)With water tank(21)It is connected, the 3rd water pump(6)Input pipe and water tank(21)It is connected It is logical, the 3rd water pump(6)Efferent duct and refrigerator(7)Input pipe be connected, the cooling tube(8)Away from water tank(21) One end pass through cooling storehouse(2)With refrigerator(7)Output terminal is connected, the cooling storehouse(2)Inside it is equipped with the second filter(10), And second filter(10)With the second water pipe(18)It is connected, second water pipe(18)Through cooling storehouse(2)With the second water pump (5)Input pipe is connected, second water pump(5)Efferent duct and the 3rd water pipe(19)One end is connected, and the 3rd water pipe(19) The other end stretch into evaporating chamber(1)Top.
2. a kind of potassium nitrate crystal production system according to claim 1, it is characterised in that:The evaporating chamber(1)One side It is fixed with heating controller(14), and heating controller(14)With heating plate(3)It is electrically connected.
3. a kind of potassium nitrate crystal production system according to claim 1, it is characterised in that:The cooling storehouse(2)One side It is fixed with control panel(20), and control panel(20)With the first water pump(4), the second water pump(5)With the 3rd water pump(6)Electrically connect It connects.
4. a kind of potassium nitrate crystal production system according to claim 2, it is characterised in that:The evaporating chamber(1)Bottom One side is provided with the first discharge port(16), and the first discharge port(16)First sealing-plug is inside installed(11).
5. a kind of potassium nitrate crystal production system according to claim 3, it is characterised in that:The cooling storehouse(1)Bottom One side is provided with the second discharge port(15), and the second discharge port(15)Second sealing-plug is inside installed(12).
CN201810049378.9A 2018-01-18 2018-01-18 Potassium nitrate crystallization production system Active CN108083299B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810049378.9A CN108083299B (en) 2018-01-18 2018-01-18 Potassium nitrate crystallization production system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810049378.9A CN108083299B (en) 2018-01-18 2018-01-18 Potassium nitrate crystallization production system

Publications (2)

Publication Number Publication Date
CN108083299A true CN108083299A (en) 2018-05-29
CN108083299B CN108083299B (en) 2023-07-28

Family

ID=62181793

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810049378.9A Active CN108083299B (en) 2018-01-18 2018-01-18 Potassium nitrate crystallization production system

Country Status (1)

Country Link
CN (1) CN108083299B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021248774A1 (en) * 2020-06-12 2021-12-16 金钾科技有限公司 Circulating type potassium nitrate crystallization device

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB267996A (en) * 1925-11-18 1927-03-18 Arthur Lambert Improvements in processes for the manufacture of potassium nitrate
GB343287A (en) * 1930-01-23 1931-02-19 Le Nitro Sel Improvements in or relating to the manufacture of potassium nitrate
RU2317255C1 (en) * 2006-09-13 2008-02-20 Открытое акционерное общество "Азот" Potassium nitrate production process
CN101143731A (en) * 2007-09-05 2008-03-19 化工部长沙设计研究院 Vacuum crystallization technique for producing potassium nitrate from potassium chloride by sodium nitrate
CN101177287A (en) * 2007-11-16 2008-05-14 新疆硝石钾肥有限公司 Method for producing potassium nitrate by chilisaltpeter ore transformation process
CN101234768A (en) * 2007-01-31 2008-08-06 新疆硝石钾肥有限公司 Method for producing potassium nitrate by sodium nitrate and potassium chloride double decomposition reaction
CN201454126U (en) * 2009-08-18 2010-05-12 湖南丹化农资有限公司 Vacuum concentration device for separating ammonium chloride in production of potassium nitrate
CN201458761U (en) * 2009-08-18 2010-05-12 湖南丹化农资有限公司 Vacuum cooling crystallizer for producing potassium nitrate
CN102838139A (en) * 2012-10-09 2012-12-26 新疆安华矿业投资有限公司 Method for producing potassium nitrate by utilizing salt lake brine in brine mixing mode
CN104261437A (en) * 2014-10-10 2015-01-07 山东诺贝丰化学有限公司 Continuous potassium nitrate production system combined with liquid ammonium nitrate production
CN105236452A (en) * 2015-11-06 2016-01-13 化工部长沙设计研究院 Technology for producing highly pure potassium nitrate through reaction of sodium nitrate and potassium chloride
CN206486297U (en) * 2017-02-09 2017-09-12 四川好时吉化工有限公司 Process for preparing potassium nitrate by double decomposition reactor

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB267996A (en) * 1925-11-18 1927-03-18 Arthur Lambert Improvements in processes for the manufacture of potassium nitrate
GB343287A (en) * 1930-01-23 1931-02-19 Le Nitro Sel Improvements in or relating to the manufacture of potassium nitrate
RU2317255C1 (en) * 2006-09-13 2008-02-20 Открытое акционерное общество "Азот" Potassium nitrate production process
CN101234768A (en) * 2007-01-31 2008-08-06 新疆硝石钾肥有限公司 Method for producing potassium nitrate by sodium nitrate and potassium chloride double decomposition reaction
CN101143731A (en) * 2007-09-05 2008-03-19 化工部长沙设计研究院 Vacuum crystallization technique for producing potassium nitrate from potassium chloride by sodium nitrate
CN101177287A (en) * 2007-11-16 2008-05-14 新疆硝石钾肥有限公司 Method for producing potassium nitrate by chilisaltpeter ore transformation process
CN201454126U (en) * 2009-08-18 2010-05-12 湖南丹化农资有限公司 Vacuum concentration device for separating ammonium chloride in production of potassium nitrate
CN201458761U (en) * 2009-08-18 2010-05-12 湖南丹化农资有限公司 Vacuum cooling crystallizer for producing potassium nitrate
CN102838139A (en) * 2012-10-09 2012-12-26 新疆安华矿业投资有限公司 Method for producing potassium nitrate by utilizing salt lake brine in brine mixing mode
CN104261437A (en) * 2014-10-10 2015-01-07 山东诺贝丰化学有限公司 Continuous potassium nitrate production system combined with liquid ammonium nitrate production
CN105236452A (en) * 2015-11-06 2016-01-13 化工部长沙设计研究院 Technology for producing highly pure potassium nitrate through reaction of sodium nitrate and potassium chloride
CN206486297U (en) * 2017-02-09 2017-09-12 四川好时吉化工有限公司 Process for preparing potassium nitrate by double decomposition reactor

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
张罡: "我国硝酸钾生产工艺及装置概述" *
李光耀等: "真空结晶复分解法硝酸钾装置设计总结" *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021248774A1 (en) * 2020-06-12 2021-12-16 金钾科技有限公司 Circulating type potassium nitrate crystallization device

Also Published As

Publication number Publication date
CN108083299B (en) 2023-07-28

Similar Documents

Publication Publication Date Title
CN105664521A (en) Dynamic crystallization equipment and dynamic crystallization method
CN203525333U (en) MVR (Mechanical Vapor Recompression) evaporator
CN108083299A (en) A kind of potassium nitrate crystal production system
CN107140661B (en) A method of flash distillation cooling production potassium nitrate
CN107596709A (en) A kind of soda manufacture MVR vaporising devices
CN207371123U (en) A kind of soda manufacture MVR vaporising devices
CN207957783U (en) A kind of potassium nitrate crystal process units
CN109896950A (en) A kind of system and technique of calcium gluconate continuous crystallisation
CN210751328U (en) Aminoacetic acid by-product ammonium chloride recovery device
CN205045820U (en) Potassium perchlorate apparatus for producing
CN111282307A (en) Quick crystallizing tank for amino acid production
CN209451352U (en) A kind of amino acids production rapid crystallization tank
CN205332643U (en) Device that keeps frostless work of evaporimeter
CN213771402U (en) Evaporation crystallization salt manufacturing device
CN103788127A (en) Continuous hydrolysis system for preparing glyphosate by glycine method
CN207922674U (en) Defrosting water circulation utilization system
CN204428875U (en) The complete continuous crystallisation production process equipment of a kind of methenamine
DE10347497B4 (en) Device for cooling objects and rooms and method for their operation
CN208893666U (en) A kind of extraction concentration systems
CN110171840A (en) A kind of energy-efficient zinc sulfate concentration and crystallization device
CN110841319A (en) Energy-saving double-effect vacuum concentrator
CN2495646Y (en) Multi-functional apparatus for recovering and concentrating alcohol
CN218589717U (en) Vacuum type continuous evaporation crystallization device
CN220309758U (en) Evaporation crystallization system of citric acid monohydrate
CN215626885U (en) Triple-effect evaporator suitable for evaporating high-salinity wastewater

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
GR01 Patent grant
GR01 Patent grant