CN207498073U - Novel energy-saving environment-friendly heavy soda ash production system - Google Patents
Novel energy-saving environment-friendly heavy soda ash production system Download PDFInfo
- Publication number
- CN207498073U CN207498073U CN201721562013.3U CN201721562013U CN207498073U CN 207498073 U CN207498073 U CN 207498073U CN 201721562013 U CN201721562013 U CN 201721562013U CN 207498073 U CN207498073 U CN 207498073U
- Authority
- CN
- China
- Prior art keywords
- outlet
- level
- inlet communication
- steam
- soda ash
- 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.)
- Active
Links
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a kind of novel energy-saving environment-friendly heavy soda ash production system, including refining plant, hygroscopic water solution concentration systems, crystal system and centrifugal drying system.Compression cycle the utility model has the advantage of, indirect steam utilizes step by step, solves wet resolution ratio and the excessively high contradiction of hygroscopic water solution concentration systems energy consumption, improves the wet resolution ratio of brine, heavy soda ash yield is up to more than 95%；It is directly promoted to a higher rank Lowlevel thermal energy using mechanical compression method, Lowlevel thermal energy recycles, and low energy consumption, evaporates ton water power consumption≤34kWh；And a large amount of recirculated cooling waters of multiple-effect evaporation crystallization end effect secondary steam condensation consumption are eliminated, avoid the evaporation of recirculated water and elegant loss；The utility model ton heavy soda ash coal consumption 0.33 ton (Q >=5000kcal/kg), power consumption 125KWh, water consume 3.35m3, reduce heavy soda ash production cost.
Description
Technical field：
The utility model is related to soda manufacture field, more particularly to a kind of novel energy-saving environment-friendly heavy soda ash production system.
Background technology：
Soda ash, scientific name sodium carbonate, is important one of industrial chemicals, is widely used in light industry, daily use chemicals, building materials, chemical work
Industry, food industry, metallurgy, weaving, oil, national defence, medicine and other fields.Difference of the soda ash according to its physical property can be divided into light
Matter soda ash and heavy soda ash, wherein, heavy soda ash is widely used in chemical industry, metallurgy, national defence, weaving, printing and dyeing, food, glass, wards off
The fields such as porcelain, medicine, papermaking.
The method of production soda ash has ammonia-soda process, union soda and natural alkaline process etc. now.Ammonia-soda process, union soda soda ash with
Crude salt uses carbonating technique for raw material, but technological process is long, investment is high, and operating cost is high.The natural alkaline process for relying on resource is pure
Alkali production technology has carbonating technique and evaporative crystallization technique, carbonating technique to be primarily adapted for use in saliferous ore and brine, but work
Skill long flow path, control parameter is more, and plant investment is high, and production cost is high；Evaporation technology is suitable for the trona resource containing less salt, mesh
It is preceding mainly to have monohydrate sodium carbonate flow and sesquialter alkali flow.
Sesquialter alkali technique, since the product that the first step obtains is light soda ash, it is still necessary to be hydrated and dry just obtain heavy
Soda ash, long flow path, high energy consumption, investment is high, production cost is high, and grassroot project is less to use the technology.
Monohydrate sodium carbonate one-step technology and the main distinction of sesquialter alkali technique are that one-step method direct crystallization goes out monohydrate sodium carbonate, calcining
It obtains heavy soda ash and needs not move through hydration, core is to control the concentration of sodium bicarbonate in crystallizer, ensures crystallization in one
In scale crystal region.One kind contains NaHCO3Alkali halogen wet decomposition evaporation alkali-making process (notification number CN101503204B) is with hygroscopic water
The Quadruple-effect five-piece vacuum evaporating crystalization technology of function is solved, first, in Quadruple-effect five-piece evaporated crystallization device, by high NaHCO3Content
Alkali halogen wet decomposition evaporation, decompose a part of NaHCO3, evaporate and completed in an equipment with hygroscopic water solution；Secondly, by hygroscopic water solution
Contain certain density CO after evaporation2Indirect steam as it is next effect heating room heat source, take certain measure lower CO2Exchange
The influence of the thermal efficiency.But the technique still has problems with to need to solve the problem of 1, there are wet resolution ratio is not high, the technique hygroscopic water
Solution is happened in evaporation separation chamber, and hygroscopic water solution preocess is unable to control, and wet resolution ratio is relatively low, and heavy soda ash yield is only 60~
70%, remaining is light soda ash；2nd, Lowlevel thermal energy cannot efficiently use, high energy consumption, 1 ton of alkali of production need to consume coal-fired 0.68 ton,
Power consumption 72kWh；3rd, the cooling required of Lowlevel thermal energy consumes a large amount of cooling waters, and water consume needed for 1 ton of alkali of production is up to 7.2m3。
Utility model content：
The purpose of this utility model is to provide a kind of novel energy-conserving rings of energy conservation and environmental protection heavy soda ash manufacturing technique requirent
Take care of yourself matter soda manufacture system.
The purpose of this utility model is implemented by following technical solution, novel energy-saving environment-friendly heavy soda ash production system, packet
It includes refining plant, hygroscopic water solution concentration systems, crystal system and centrifugal drying system, the outlet of the refining plant and passes through preheater
With the inlet communication of the wet decomposition tower of level-one of the hygroscopic water solution concentration systems, the two level falling film evaporation of the hygroscopic water solution concentration systems
The nearly saturation concentrated solution outlet of device respectively with the import of the monohydrate sodium carbonate crystallizer of the crystal system and eluriate leg inlet communication, institute
The crystallization concentrated solution outlet of the monohydrate sodium carbonate crystallizer of crystal system is stated to centrifuge with the piston material pushing of the centrifugal drying system
The inlet communication of machine.
Further, the hygroscopic water solution concentration systems include the wet decomposition tower of the level-one, stage falling-film evaporators, level-one steaming
The wet decomposition tower of vapour compressor, two level, the two level falling film evaporator and second steam compressor, the wet decomposition tower of level-one it is wet
Decomposed solution exports the inlet communication with the stage falling-film evaporators, offgas outlet and the level-one of the wet decomposition tower of level-one
The compressed steam inlet communication of falling film evaporator, the concentrated solution outlet of the stage falling-film evaporators and the wet decomposition tower of the two level
Inlet communication, indirect steam outlet and the inlet communication of the level-one vapour compression machine, the institute of the stage falling-film evaporators
State the outlet of level-one vapour compression machine and the compressed steam inlet communication of the wet decomposition tower of the level-one；The wet decomposition tower of two level
Wet decomposed solution outlet and the inlet communication of the two level falling film evaporator, the offgas outlet and described two of the wet decomposition tower of two level
The compressed steam inlet communication of grade falling film evaporator, indirect steam outlet and the second steam of the two level falling film evaporator
The inlet communication of compressor, the outlet of the second steam compressor connect with the compressed steam import of the wet decomposition tower of the two level
It is logical；The fixed gas of the stage falling-film evaporators and the two level falling film evaporator export and condensate outlet with the preheater
Heat transferring medium inlet communication.
Further, the crystal system includes the monohydrate sodium carbonate crystallizer and crystallization vapour compression machine, the monohydrate sodium carbonate
Crystallizer indirect steam outlet with it is described crystallization vapour compression machine inlet communication, it is described crystallization vapour compression machine outlet with
The compressed steam inlet communication of the monohydrate sodium carbonate crystallizer.
Further, the centrifugal drying system includes the piston push centrifuge and steam roaster, the piston
The inlet communication of the solid outlet of pusher centrifuge and the steam roaster, the condensate outlet of the steam roaster and shwoot
The inlet communication of tank, the outlet of the flash evaporation tank and the heat transferring medium inlet communication of the preheater.
Further, the centrifugal drying system includes the piston push centrifuge and steam roaster, the piston
The inlet communication of the solid outlet of pusher centrifuge and the steam roaster, the offgas outlet and condensate of the steam roaster
The air inlet connection of saturator, the gas outlet of the condensate saturator are connected with the air inlet of first grade scrubber, and the level-one is washed
The gas outlet for washing tower is connected with the air inlet of secondary scrubber, and the washings of the first grade scrubber and the secondary scrubber go out
Mouth makes up line with process liquid to be connected.
Further, further included mother liquid disposal system, the mother liquid disposal system include mother liquid evaporation device, mother liquor from
Scheming and mother liquid disposal device, crystallization concentrate salt discharge outlet and the mother liquor of the monohydrate sodium carbonate crystallizer of the crystal system
The inlet communication of evaporator, the inlet communication of the concentrated solution outlet of the mother liquid evaporation device and the mother liquor centrifuge, the mother
The inlet communication of the solid outlet of liquid centrifuge and the monohydrate sodium carbonate crystallizer, the liquid outlet of the mother liquor centrifuge with it is described
The inlet communication of mother liquid disposal device.
The advantages of the utility model：1st, the tail gas of wet decomposition tower is directly used in falling film evaporator heating room thereafter, and will
The indirect steam that falling film evaporator generates is turned again to after vapour compression machine compresses in wet decomposition tower；The compression of indirect steam
Cycle utilizes step by step, solves wet resolution ratio and the excessively high contradiction of hygroscopic water solution concentration systems energy consumption, improves the hygroscopic water solution of brine
Rate makes heavy soda ash yield up to more than 95%；2nd, it is directly promoted to a higher rank Lowlevel thermal energy using mechanical compression method, Lowlevel thermal energy recycles
It utilizes, avoids the condensation of end effect secondary steam in multiple-effect evaporation crystallization process；Compared with multiple-effect evaporation crystal system, low level heat
Utilization can be recycled, while eliminates a large amount of recirculated cooling waters of end effect secondary steam condensation consumption, avoids recirculated water
Evaporation and elegant loss；Ton heavy soda ash coal consumption of the present invention 0.33 ton (Q >=5000kcal/kg), power consumption 125KWh, water consume
3.35m3, 53% is reduced on year-on-year basis, and evaporation ton water power consumption≤34kWh reduces heavy soda ash production cost；3rd, production system is efficient
It is water-saving, high-order energy preheating brine is taken, the mode that the secondary high position energy improves process liquid temperature is come comprehensive to the thermal energy of system
Close and utilize, the fixed gas of each equipment discharge and condensed water are used to pre- hot brine in system, level-one, secondary scrubber washings
For supplementing process liquid, to improve the temperature of process liquid；It realizes and the maximum of energy is utilized, reduce the energy consumption of system；
4th, in evaporation and crystal process, by discharging the sodium chloride in mother liquor control magma in right amount, and pass through two level hygroscopic water solution concentrate
Magma is further eluriated, improves monohydrate sodium carbonate crystalline product purity；5th, mother liquor realizes resource using salt technique is divided
The maximization utilized and the wastewater zero discharge of environmental protection, resource recovery >=51% of salt discharge mother liquor.
Description of the drawings：
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the equipment connection diagram of embodiment 1.
Refining plant 1, preheater 2, the wet decomposition tower 3 of level-one, stage falling-film evaporators 4, level-one vapour compression machine 5, two level
Wet decomposition tower 6, two level falling film evaporator 7, second steam compressor 8, monohydrate sodium carbonate crystallizer 9 crystallize vapour compression machine 10, mother liquor
Evaporator 11, mother liquor centrifuge 12, mother liquid disposal device 13, piston push centrifuge 14, steam roaster 15, flash evaporation tank 16 coagulate
Water saturation tower 17, first grade scrubber 18, secondary scrubber 19, process liquid make up line 20.
Specific embodiment：
Embodiment 1：
As shown in Figure 1, novel energy-saving environment-friendly heavy soda ash production system, including refining plant 1, hygroscopic water solution concentration system
System, crystal system and centrifugal drying system.
Refining plant 1 can be any one in settling tank or active carbon filter, for refining brine, to reduce halogen
Water-insoluble and organic matter in water；
The outlet of refining plant 1 passes through the inlet communication of preheater 2 and the wet decomposition tower 3 of level-one of hygroscopic water solution concentration systems,
Hygroscopic water solution concentration systems include the wet decomposition tower 3 of level-one, stage falling-film evaporators 4, level-one vapour compression machine 5, the wet decomposition tower of two level
6th, two level falling film evaporator 7 and second steam compressor 8, the outlet of wet decomposed solution and the stage falling-film of the wet decomposition tower 3 of level-one evaporate
The inlet communication of device 4, the offgas outlet of the wet decomposition tower 3 of level-one and the compressed steam inlet communication of stage falling-film evaporators 4, level-one
The concentrated solution outlet of falling film evaporator 4 and the inlet communication of the wet decomposition tower 6 of two level, the indirect steam of stage falling-film evaporators 4 go out
The inlet communication of mouth and level-one vapour compression machine 5, the outlet of level-one vapour compression machine 5 and the compressed steam of the wet decomposition tower 3 of level-one
Inlet communication；The outlet of wet decomposed solution and the inlet communication of two level falling film evaporator 7, the wet decomposition tower 6 of two level of the wet decomposition tower 6 of two level
Offgas outlet and two level falling film evaporator 7 compressed steam inlet communication, the indirect steam outlet of two level falling film evaporator 7 with
The inlet communication of second steam compressor 8, the outlet of second steam compressor 8 and the compressed steam import of the wet decomposition tower 6 of two level
Connection.
Refined brine enters hygroscopic water solution concentration systems after being preheated by preheater 2 and carries out hygroscopic water solution concentration, refined to decompose
Sodium bicarbonate and concentration sodium carbonate in brine；It is concentrated by a step two-stage hygroscopic water solution, the compression cycle of indirect steam is sharp step by step
With solving wet resolution ratio and the excessively high contradiction of hygroscopic water solution system energy consumption, improve the wet resolution ratio of brine, produce heavy soda ash
Rate is improved to more than 95%；Meanwhile in two-stage hygroscopic water solution concentration process, the tail gas of the wet decomposition tower 3 of level-one and the wet decomposition tower 6 of two level
It is directly used in the heating room of stage falling-film evaporators 4 and two level falling film evaporator 7 thereafter respectively, and by stage falling-film evaporators
4 and the indirect steam that generates of two level falling film evaporator 7 respectively after level-one vapour compression machine 5 and second steam compressor 8 compress,
It is back to use respectively again in the wet decomposition tower 3 of level-one and the wet decomposition tower 6 of two level；The application of vapour compression machine, reduces system energy consumption
And water consume, avoid the waste of low-phase energy, evaporation ton water consume electricity≤34kWh.
The nearly saturation concentrated solution outlet of the two level falling film evaporator 7 of hygroscopic water solution concentration systems respectively with a water of crystal system
The import of alkali crystallizer 9 and elutriation leg inlet communication, the nearly saturation concentrate part come out from hygroscopic water solution concentration systems enter
Monohydrate sodium carbonate crystallizer 9, another part enter in the elutriation leg of monohydrate sodium carbonate crystallizer 9, can improve heavy soda ash product purity, protect
Product quality is demonstrate,proved better than national standard, meets the needs of high-end customer；Crystal system includes monohydrate sodium carbonate crystallizer 9 and crystallization steam
Compressor 10, the indirect steam outlet of monohydrate sodium carbonate crystallizer 9 and the inlet communication of crystallization vapour compression machine 10, crystallize both vapor compression
The outlet of machine 10 and the compressed steam inlet communication of monohydrate sodium carbonate crystallizer 9.In monohydrate sodium carbonate crystallization process, monohydrate sodium carbonate crystallizer 9
The crystallized vapour compression machine 10 of indirect steam compress after back to monohydrate sodium carbonate crystallizer 9 provide heat for crystallization process；Crystallization
The introducing of vapour compression machine 10 avoids the condensation of end effect secondary steam and the waste of low-phase energy in evaporation and crystal process.
It has further included mother liquid disposal system, when the sodium chloride concentration that concentrate is crystallized in monohydrate sodium carbonate crystallizer 9 is excessively high,
The sodium chloride concentration for the crystallization concentrate that concentrate is controlled in monohydrate sodium carbonate crystallizer 9 is crystallized by discharge unit, to ensure a water
The quality of alkali crystallization；The crystallization concentrate salt discharge outlet of the monohydrate sodium carbonate crystallizer 9 of crystal system and the mother liquor of mother liquid disposal system
The inlet communication of evaporator 11, mother liquid disposal system include mother liquid evaporation device 11, mother liquor centrifuge 12 and mother liquid disposal device 13,
The concentrated solution outlet of mother liquid evaporation device 11 and the inlet communication of mother liquor centrifuge 12, the solid outlet of mother liquor centrifuge 12 and a water
The inlet communication of alkali crystallizer 9, the liquid outlet of mother liquor centrifuge 12 and the inlet communication of mother liquid disposal device 13.Monohydrate sodium carbonate crystallizes
The crystallization concentrate of the crystallization concentrate salt discharge outlet drain of device 9, which enters in mother liquid evaporation device 11, to be concentrated, later into mother liquor from
It is centrifuged in scheming 12, centrifugation obtained solid is back in monohydrate sodium carbonate crystallizer 9；Centrifugation gained liquid enters mother liquid disposal device 13
In, through being reacted with mixed in hydrochloric acid, evaporative crystallization, centrifugation, finally obtain sodium chloride crystal, realize maximization and the ring of the utilization of resources
The wastewater zero discharge of guarantor, resource recovery >=51%.
The concentrated solution outlet of the monohydrate sodium carbonate crystallizer 9 of crystal system and the piston push centrifuge 14 of centrifugal drying system
Inlet communication, centrifugal drying system include piston push centrifuge 14 and steam roaster 15, and piston push centrifuge 14 is consolidated
Body exports the inlet communication with steam roaster 15；The crystallization concentrate for being delivered to piston push centrifuge 14 is de- by centrifuging
After water and steam roaster 15 are dried, heavy soda ash finished product is obtained.
In the entire system, the outlet of the fixed gas of stage falling-film evaporators 4 and two level falling film evaporator 7 and condensate outlet are equal
With the heat transferring medium inlet communication of preheater 2；Condensate outlet and the inlet communication of flash evaporation tank 16, the shwoot of steam roaster 15
The outlet of tank 16 and the heat transferring medium inlet communication of preheater 2；The offgas outlet of steam roaster 15 and condensate saturator 17
Air inlet connects, and the gas outlet of condensate saturator 17 is connected with the air inlet of first grade scrubber 18, the outlet of first grade scrubber 18
It mouthful is connected with the air inlet of secondary scrubber 19, the washing water out of first grade scrubber 18 and secondary scrubber 19 is and technique
Liquid makes up line 20 connections, and the washings of first grade scrubber 18 and secondary scrubber 19 are used to the supplement of process liquid, work
Skill liquid can be used as the supplement for adopting halogen process solvent.System is classified each high-order energy, takes high-order energy preheating brine,
The mode that the secondary high position energy improves auxiliary agent temperature carrys out the heat integration to system, realizes and the maximum of energy is utilized, real
The low energy consumption of existing system.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (6)
1. novel energy-saving environment-friendly heavy soda ash production system, which is characterized in that it include refining plant, hygroscopic water solution concentration systems,
Crystal system and centrifugal drying system, the outlet of the refining plant pass through the level-one of preheater and the hygroscopic water solution concentration systems
The inlet communication of wet decomposition tower, the nearly saturation concentrated solution outlet of the two level falling film evaporator of the hygroscopic water solution concentration systems respectively with
The import of the monohydrate sodium carbonate crystallizer of the crystal system and elutriation leg inlet communication, the monohydrate sodium carbonate crystallization of the crystal system
The inlet communication of the crystallization concentrated solution outlet and the piston push centrifuge of the centrifugal drying system of device.
2. novel energy-saving environment-friendly heavy soda ash production system according to claim 1, which is characterized in that the hygroscopic water solution is dense
Compression system includes the wet decomposition tower of the level-one, stage falling-film evaporators, level-one vapour compression machine, the wet decomposition tower of two level, described two
Grade falling film evaporator and second steam compressor, the outlet of wet decomposed solution and the stage falling-film of the wet decomposition tower of level-one evaporate
The inlet communication of device, the offgas outlet of the wet decomposition tower of level-one connect with the compressed steam import of the stage falling-film evaporators
Logical, the inlet communication of the concentrated solution outlet of the stage falling-film evaporators and the wet decomposition tower of the two level, the stage falling-film steams
Evaporator vapo(u)r exports the inlet communication with the level-one vapour compression machine, the outlet of the level-one vapour compression machine and institute
State the compressed steam inlet communication of the wet decomposition tower of level-one；The outlet of wet decomposed solution and the two level falling liquid film of the wet decomposition tower of two level
The inlet communication of evaporator, the offgas outlet of the wet decomposition tower of two level and the compressed steam import of the two level falling film evaporator
Connection, indirect steam outlet and the inlet communication of the second steam compressor, the two level of the two level falling film evaporator
The outlet of vapour compression machine and the compressed steam inlet communication of the wet decomposition tower of the two level；Stage falling-film evaporators and described
Two level falling film evaporator fixed gas outlet and condensate outlet with the heat transferring medium inlet communication of the preheater.
3. according to any novel energy-saving environment-friendly heavy soda ash production system of claims 1 or 2, which is characterized in that described
Crystal system include the monohydrate sodium carbonate crystallizer and crystallization vapour compression machine, the monohydrate sodium carbonate crystallizer indirect steam outlet with
The inlet communication of the crystallization vapour compression machine, the outlet of the crystallization vapour compression machine and the compression of the monohydrate sodium carbonate crystallizer
Steam inlet connects.
4. novel energy-saving environment-friendly heavy soda ash production system according to claim 3, which is characterized in that the centrifugal drying
System includes the piston push centrifuge and steam roaster, the solid outlet of the piston push centrifuge and the steam
The inlet communication of calcining furnace, condensate outlet and the inlet communication of flash evaporation tank, the outlet of the flash evaporation tank of the steam roaster
With the heat transferring medium inlet communication of the preheater.
5. novel energy-saving environment-friendly heavy soda ash production system according to claim 3, which is characterized in that the centrifugal drying
System includes the piston push centrifuge and steam roaster, the solid outlet of the piston push centrifuge and the steam
The inlet communication of calcining furnace, the offgas outlet of the steam roaster are connected with the air inlet of condensate saturator, and the condensate is satisfied
It is connected with the gas outlet of tower with the air inlet of first grade scrubber, the gas outlet of the first grade scrubber and the air inlet of secondary scrubber
The washing water out of mouth connection, the first grade scrubber and the secondary scrubber makes up line with process liquid to be connected.
6. novel energy-saving environment-friendly heavy soda ash production system according to claim 3, which is characterized in that it has further included mother
Liquid treating system, the mother liquid disposal system include mother liquid evaporation device, mother liquor centrifuge and mother liquid disposal device, the crystal system
The crystallization concentrate salt discharge outlet of the monohydrate sodium carbonate crystallizer and the inlet communication of the mother liquid evaporation device, the mother liquid evaporation
The inlet communication of the concentrated solution outlet of device and the mother liquor centrifuge, solid outlet and the monohydrate sodium carbonate of the mother liquor centrifuge
The inlet communication of crystallizer, the inlet communication of the liquid outlet of the mother liquor centrifuge and the mother liquid disposal device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721562013.3U CN207498073U (en) | 2017-11-20 | 2017-11-20 | Novel energy-saving environment-friendly heavy soda ash production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721562013.3U CN207498073U (en) | 2017-11-20 | 2017-11-20 | Novel energy-saving environment-friendly heavy soda ash production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207498073U true CN207498073U (en) | 2018-06-15 |
Family
ID=62505624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721562013.3U Active CN207498073U (en) | 2017-11-20 | 2017-11-20 | Novel energy-saving environment-friendly heavy soda ash production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207498073U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109455743A (en) * | 2018-12-13 | 2019-03-12 | 许正 | A kind of heavy soda ash preparation process |
| CN109809437A (en) * | 2017-11-20 | 2019-05-28 | 内蒙古博源控股集团有限公司 | Novel energy-saving environment-friendly heavy soda ash production technology and system |
-
2017
- 2017-11-20 CN CN201721562013.3U patent/CN207498073U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109809437A (en) * | 2017-11-20 | 2019-05-28 | 内蒙古博源控股集团有限公司 | Novel energy-saving environment-friendly heavy soda ash production technology and system |
| CN109455743A (en) * | 2018-12-13 | 2019-03-12 | 许正 | A kind of heavy soda ash preparation process |
| CN109455743B (en) * | 2018-12-13 | 2021-08-03 | 许正 | Preparation process of heavy soda ash |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106007133B (en) | A kind of desulfurization wastewater concentration and evaporation, crystallization, salt separating technology | |
| CN102964019B (en) | Energy-saving evaporation treatment process of high-salinity wastewater | |
| CN105236450B (en) | Double decomposition sodium bicarbonate mother solution complete alternation process for cleanly preparing | |
| CN100484883C (en) | Technique for producing refined salt from salt production waste liquid | |
| CN109809437A (en) | Novel energy-saving environment-friendly heavy soda ash production technology and system | |
| CN102351357B (en) | Resource utilization of waste water containing phenol and sodium sulfate and treating method | |
| CN103318923B (en) | Method for recovering sodium sulfate from white carbon black mother solution | |
| CN104003422B (en) | Disposing mother liquor method new technology | |
| CN207498073U (en) | Novel energy-saving environment-friendly heavy soda ash production system | |
| CN114044529A (en) | Salt and saltpeter co-production process | |
| CN111908535B (en) | Zero-discharge recycling treatment system and treatment method for magnesium sulfate production wastewater | |
| CN107758698B (en) | A kind of saltcake dehydration anhydrous sodium sulphate Processes and apparatus processed | |
| CN109019638A (en) | A kind of mother liquor processing method preparing soda ash using saltcake as raw material | |
| CN100556811C (en) | A kind of production method of low-salt dense soda ash and the system that produces low-salt dense soda ash thereof | |
| CN107670323A (en) | Sulphur ammonium crystallization recovery energy saving technique and device in acrylonitrile process | |
| CN114887340A (en) | Double-effect MVR forced countercurrent circulation falling film evaporation crystallization system | |
| CN101683995A (en) | Energy-saving using method for circular batching of carbon mother liquor | |
| CN103332751A (en) | Ferrous sulfate comprehensive utilization method | |
| CN114949893B (en) | Evaporation crystallization process and device for producing lithium chloride from salt lake brine | |
| CN203935631U (en) | Multi-effect evaporation system steam condensate (SC) heat energy recycling device | |
| CN209396925U (en) | A kind of evaporated crystallization device based on steam pressure energy | |
| CN203425552U (en) | Concentration and crystallization equipment for sodium sulfite | |
| CN214456896U (en) | Waste water treatment and recovery device in PTA (pure terephthalic acid) production industry | |
| CN201089726Y (en) | System for producing low salt strong mass soda | |
| CN102145902A (en) | Method for producing high-quality potassium chloride |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |