CN206645962U - A kind of integrated treatment chemical industry strong brine system - Google Patents
A kind of integrated treatment chemical industry strong brine system Download PDFInfo
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- CN206645962U CN206645962U CN201720267016.8U CN201720267016U CN206645962U CN 206645962 U CN206645962 U CN 206645962U CN 201720267016 U CN201720267016 U CN 201720267016U CN 206645962 U CN206645962 U CN 206645962U
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- strong brine
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- ammonium sulfate
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Abstract
The utility model discloses a kind of integrated treatment chemical industry strong brine system, belong to resource reutilization technical field, the system separates chemical industry strong brine by NF membrane and obtains sodium chloride solution and sulfuric acid solution, metabisulfite solution then passes through and prepares sodium bicarbonate and ammonium sulfate product with ammoniacal liquor and carbon dioxide gas precursor reactant after cold process jelly nitre purifies, the utility model solves the intractable problem of the high strong brine of chemical industry, the recycling of carnallite in high strong brine is realized, meets sustainable development requirement.Meanwhile compared with salt legal system takes sodium bicarbonate, the requirement for anticorrosion of equipment can be reduced using this system, the construction investment of sodium bicarbonate processed is saved, the value of the ammonium sulfate of by-product has a clear superiority also above ammonium chloride in economic benefit.
Description
Technical field
The utility model belongs to resource reutilization technical field, and in particular to a kind of integrated treatment chemical industry strong brine system.
Background technology
With the fast development of China's economy, growing number of trend is also presented in the yield of solid waste, and solid waste is dirty
Dye certainly can not be ignored to the harmfulness of environment and human body, and it directly influences the life of people, has a strong impact on that environment and human body are good for
Health.
By water resource and the dual-pressure of environmental problem, domestic coal chemical industry or Petrochemical Industry build waste water zero-emission successively
Put processing unit.The high strong brine that waste water is concentrated to give after film concentration pretreatment, it is miscellaneous to obtain solid by evaporation and crystallization system
Salt.But solid carnallite is based on sodium chloride and sodium sulphate, and after being concentrated by biochemical waste water gained high strong brine evaporation knot
Caused solid carnallite is named as danger wastes after crystalline substance, and national environmental protection department requires strict management and control.
High slat-containing wastewater refers to the waste water of total saliferous mass fraction at least 1%, its wide material sources, be concentrated mainly on electric power,
The industries such as oil refining, chemical industry, metallurgy, papermaking, agricultural chemicals.Wherein, the coal gas in the highly concentrated salt waste water main source production process of coal chemical industry
Washes, circulation draining, chemical water station draining etc., it is characterized in salt content height, mostly Cl-、SO4 2-、Na+Deng thing
Matter, for pollutant based on total salinity (TDS), the density of this high-salt wastewater is big, and activated sludge easily floats loss, has a strong impact on life
The clean-up effect of thing processing system.
At present, requirement more and more higher of all trades and professions to discharge of wastewater water quality, national governments are to environmental protection, energy resource consumption
It is also more and more stricter Deng requirement.Promulgate within 2005《Chinese water-saving technology policy outline》In explicitly point out development efflux wastewater return
With with " zero-emission " technology.With 2015《New environmental law》、《Ten, water》Deng the appearance successively of environmental protection policy, country is to waste water
The environmental requirements such as processing are more strict；And combine domestic more Coal Chemical Engineering Project environment impact assessment statement examination results in 2015 and learn,
Do not promise to undertake that realizing that wastewater zero discharge will not be given accepts and examine in Coal Chemical Engineering Project environment impact assessment statement.Therefore, meet in production
It is required that high quality process water while, how substantial amounts of sewage accomplished into classification processing, cascade utilization, finally accomplishes coalification
The thorough zero-emission of the high strong brine of work and the recycling of crystal salt, the problem have been to hinder domestic coal chemical industry to develop in a healthy way
Bottleneck, finds a kind of high strong brine zero-emission of feasible coal chemical industry and crystal salt application technology as the second resource is extremely urgent.
At present, domestic solid waste carnallite processing mode at this stage predominantly fills, and this processing mode disposal costs is high, takes big
Land resource is measured, and the pollution of underground water and soil may be caused.This mode is unable to reach waste water zero-emission truly
Put.
Because the carnallite main component of discharge is NaCl and Na2SO4, can be by the chemical technology of some feasibilities come real
The recycling of existing slag salt recycling.How dangerous waste carnallite recycling is transformed into and produced with high added value correlation salt chemical engineering
Product will be the final goal of realizing enterprise's zero-emission, and chemical wastewater treatment system reaches zero-emission truly.Together
The recycling of Shi Shixian dangerous waste carnallites, dangerous waste carnallite is turned waste into wealth, and is industry, the skill for meeting country and local government
Art, energy economy ＆ environment policy, and promote the inevitable requirement of hazardous waste comprehensive utilization of resources.
Sodium bicarbonate is a kind of important industrial chemicals, can directly as the raw material of pharmaceuticals industry, for treating hyperhydrochloria,
Motion picture production, tanning, ore dressing, smelting, metal heat treatmet are can be also used for, and for fiber, rubber industry etc..At present, often
With sodium chloride, ammonia, carbon dioxide reaction, co-producing sodium chloride while sodium bicarbonate is produced, the process route is in China using wide
It is general, but high is required to equipment anticorrosion, equipment construction investment cost is high.
Ammonium sulfate is mainly used as fertilizer, suitable for various soil and crop.It can be additionally used in weaving, leather, medicine etc..
Purposes biologically is also a lot, is used for protein purification process aspect.
Utility model content
For overcome the deficiencies in the prior art, the utility model provides a kind of integrated treatment chemical industry strong brine system, should
System separates chemical industry strong brine by NF membrane and obtains sodium chloride solution and metabisulfite solution, and metabisulfite solution then passes through cold process
Freeze after nitre purification and prepare sodium bicarbonate and ammonium sulfate product with ammoniacal liquor and carbon dioxide gas precursor reactant.It is dense that the system had both solved chemical industry
The reluctant problem of salt solution, realizes the recycling of salinity in strong brine again, meets the requirement of sustainable development, meets green
Color environmental protection concept.
Technical scheme is used by the utility model solves its technical problem：
A kind of integrated treatment chemical industry strong brine system, the system includes UF membrane workshop section, liquid salt is concentrated by evaporation workshop section, system
Sodium bicarbonate workshop section, sodium sulphate and ammonium sulfate sub-prime crystallization workshop section；High strong brine carries out being passed through UF membrane after pretreatment removes firmly first
The isolated sodium chloride production water of workshop section and sodium sulphate concentrated water, workshop section is concentrated by evaporation by liquid salt is entered after sodium chloride production water concentration,
Highly concentrated sodium chloride liquid salt is obtained as ion exchange resin regeneration agent, prepared by sodium sulphate concentrated water introducing sodium bicarbonate workshop section processed small
Soda, caused filtrate during sodium bicarbonate workshop section processed is subjected to sub-prime knot through sodium peroxydisulfate and ammonium sulfate sub-prime crystallization workshop section
Crystalline substance, ammonium sulfate product is prepared.
Described UF membrane workshop section includes one-level NF membrane, two level NF membrane and the counter-infiltration being sequentially connected by pipeline
Film, two-stage NF membrane is set, realizes that the sodium sulphate in concentrated water and sodium chloride preferably separate, reverse osmosis membrane is set, to sodium chloride
Production water further concentrates, and output water plant area reuse, concentrate enters sodium chloride evaporation concentration device；Described liquid salt evaporation is dense
Contracting workshop section includes strong brine storage tank, sodium chloride evaporation concentration device and the liquid salt storage tank being sequentially connected by pipeline, strong brine
Storage tank is used to store the sodium chloride strong brine after concentration, and normal pressure, storage coolant-temperature gage is at 20-35 DEG C, sodium chloride evaporation concentration device
Sodium chloride strong brine is evaporated and concentrated；Described sodium bicarbonate workshop section processed include be sequentially connected by pipeline crystallizer,
Dense glass gall storage tank, reactor, sodium acid carbonate filter, sodium acid carbonate drier and sodium acid carbonate automatic packaging machine；Crystallizer band
There is cooling circulating water device, cooling concentration crystallization, dense glass gall storage tank Temperature fall crystallization generation salt slurry, reaction are carried out to sodium sulphate
Ammoniacal liquor and carbon dioxide are passed through in kettle and reacted with dense glass gall, sodium acid carbonate magma will be reflected in sodium acid carbonate filter
Washing and filtering, obtain pure sodium bicarbonate crystal；Described sodium sulphate includes passing through pipeline with ammonium sulfate sub-prime crystallization workshop section
First be sequentially connected mixes liquid storage tank, flush distillation enrichment facility, 60 DEG C of filters, 25 DEG C of filters, the second mixing
Liquid storage tank, double evaporation-cooling enrichment facility, secondary 60 DEG C of filters, ammonium sulfate drier and ammonium sulfate automatic packaging machine, by setting
Put twice evaporation to concentrate, 60 DEG C of filterings twice and 25 DEG C of filterings, can preferably realize the sub-prime knot of sodium sulphate and ammonium sulfate
It is brilliant.
The sodium sulphate concentrated water outlet of described one-level NF membrane and two level NF membrane is connected to crystallizer, described counter-infiltration
The brine outlet connection strong brine storage tank of film, the filtrate (liquid of described sodium acid carbonate filter connect the storage of the first mixed liquor
Row's sodium sulphate outlet conduit of tank, described 60 DEG C of filter and secondary 60 DEG C of filters is connected to dense glass gall storage tank, real
Existing whole system connection, fully uses the product in system in various pieces, realizes the row that waste residue is relatively low in whole production process
High-volume, the degree of environmental pollution is preferably minimized.
Described sodium chloride evaporation concentration device includes circulating pump, heat exchanger, vaporization chamber, Crystallization Separation room, both vapor compression
Machine and condensed water storage tank；Circulating-pump outlet connects heat exchanger tube pass entrance, and heat exchanger tube pass outlet connects the feeding mouth of vaporization chamber,
The entrance of connection vapour compression machine, vaporization chamber are internally provided with pumped vacuum systems, the outlet of vaporization chamber bottom at the top of vaporization chamber
Connected with Crystallization Separation room, Crystallization Separation room bottom is provided with discharging opening；The shell side of the outlet heat exchanger of vapour compression machine
Entrance, the shell-side outlet of heat exchanger connect condensed water storage tank by steam trap；The sodium chloride solution of processing to be concentrated passes through circulation
Pump squeezes into the tube side of heat exchanger, with the steam heat-exchanging in shell side to improve temperature in heat exchanger, the sodium chloride solution after heating
Spray into vaporization chamber.A part of water escapes the top exit of vaporization chamber in vapour form in vaporization chamber, and another part concentration carries
High sodium chloride solution enters Crystallization Separation room by the outlet at bottom of vaporization chamber, is reduced in Crystallization Separation indoor temperature, there is part
Sodium chloride crystallization is separated out, and the sodium chloride that this partially crystallizable separates out is discharged by the bottom discharge mouth of Crystallization Separation room.The device is also
Using and recovery effusion vaporization chamber top exit steam, some vapor is compressed heating by vapour compression machine,
Then it is used to heat sodium chloride solution into the shell side of heat exchanger.Energy consumption is low compared with traditional evaporation concentration device, passes through steam
Recycling reduces operating cost, reduces environmental pollution, full automatic working can be realized by supporting control system, continuous fortune
OK, securely and reliably.
Described crystallizer includes flash distillation cylinder, and the side wall for flashing cylinder is provided with pressure sensor, flashes the top of cylinder
Portion is provided with end socket, and the side wall for flashing cylinder is provided with feed pipe, and the bottom for flashing cylinder is provided with cone；It is provided with end socket
The gas discharge pipe of opening upwards, drain pipe is provided with the slope section of cone, is connected with below cone and deposits salt section, deposit salt section
Outer surface be provided with cooling coil, the crystallizer be provided with deposit salt section to be stored to the solid particle crystallized out, and
The liquid flowed down is cooled down by cooling coil, by adjusting the temperature of liquid, to control the dissolution rate of liquid, avoided
Crystallize the problem of obtained solid particle dissolves again.
Preferably, the air outlet of sodium acid carbonate drier and ammonium sulfate drier passes through pipeline in described processing system
Connect cyclone dust collectors, the air outlet connection air-introduced machine of cyclone dust collectors, by cyclone dust collectors by drier drying process
Caused dust further removes, and avoids polluting environment.
Comprised the following steps using above-mentioned processing system integrated treatment chemical industry strong brine：
1) UF membrane：The strong brine discharged in factory is passed through into one-level NF membrane and two level NF membrane by sodium sulphate and chlorination
Sodium is separated, and sodium sulphate concentrated water is entered in crystallizer, and sodium chloride production water is further concentrated by reverse osmosis membrane, and output water plant area is returned
With concentrate enters strong brine storage tank, sodium chloride production water film method for concentration, reduces the processing water of evaporative crystallization, saves
Energy consumption；
2) liquid salt is concentrated by evaporation：Sodium chloride concentrated solution in strong brine storage tank is passed through in sodium chloride evaporation concentration device
Heating, the feed liquid after heating are evaporated concentration again；
3) sodium bicarbonate processed：By the crystallisation by cooling in a crystallizer of caused sodium sulphate concentrated water in step 1), sodium sulfate salt is obtained
Slurry, sodium sulphate salt slurry is stored in Temperature fall in dense glass gall storage tank after the elutriation of saturation sodium sulphate and forms salt slurry, dense glass gall
The sodium sulphate magma (nitre slurry) that storage tank interim storage freezing and crystallizing comes out, while the amount of the nitre slurry of reactor is delivered in regulation.Salt slurry
It is pumped in reactor and is used as raw material, be passed through ammonia and carbon dioxide in a kettle, controlling reaction temperature, reaction time and turns
Sodium acid carbonate magma is obtained after speed, fully reaction, sodium acid carbonate magma is subjected to washing and filtering by sodium acid carbonate filter, obtained
To pure sodium bicarbonate crystal and filtrate, sodium bicarbonate crystal is passed through into sodium acid carbonate drier dry by filter bottom
It is dry, it is re-fed into sodium acid carbonate automatic packaging machine and is packed；
4) it is concentrated by evaporation for the first time：Caused filtrate in step 3) is pumped to the storage of the first mixing liquid storage tank, by first
Filtrate in mixing liquid storage tank is pumped in the circulation pipe in flush distillation enrichment facility, is squeezed into feed liquid to heating by circulating pump
Heated in room, the feed liquid after heating is evaporated in vaporization chamber and is concentrated to give evaporation concentrated solution, is concentrated by evaporation residual in reactor
Liquid, the complete sodium sulphate of unreacted and ammonium sulfate are separated；
5) condensation filtering twice：The evaporation concentrated solution that step 4) obtains is cooled to 60 DEG C of mistakes in 60 DEG C of filters
Filter, obtain sodium sulfate crystal and filtrate, sodium sulfate crystal return to step 3) in reactor in again participate in reaction, filtrate is 25
Cool to 25 DEG C in DEG C filter and filter again, the salt filtered out and filtrate, the salt filtered out return to flush distillation concentration
Device is concentrated by evaporation again；Sodium sulphate in raffinate and ammonium sulfate are separated, remaining sodium sulphate re-uses；
6) second of evaporation and concentration：The filtrate that 25 DEG C of filters are filtrated to get in step 5) is entered into double evaporation-cooling concentration dress
In the circulation pipe put, feed liquid is squeezed into by circulating pump and heated into heating chamber, the feed liquid after heating is evaporated in vaporization chamber
Evaporation concentrated solution is concentrated to give, evaporation concentrated solution is entered when secondary 60 DEG C of filters cool to 60 DEG C and filtered, and obtains sulphur
Sour sodium crystal and ammonium sulfate filtrate, further purify ammonium sulfate, sodium sulfate crystal return to step 3) in reactor in join again
With reaction, the ammonium sulfate filtrate after purification is passed in ammonium sulfate drier and dried, and is re-fed into ammonium sulfate automatic packaging machine and is carried out
Packaging.
The utility model has the advantages that：The utility model side solves the intractable problem of chemical industry strong brine, realizes
The recycling of salinity in strong brine, and discharged without waste liquid, meet sustainable development requirement.Meanwhile sodium chloride steams in the system
It is relatively low to send out the energy consumption of enrichment facility, being reused by steam reduces operating cost, reduces environmental pollution, passes through supporting control
System can realize full automatic working, continuous operation, securely and reliably, and the efficiency high of crystallizer crystallization, it is convenient and practical.Also,
Compared with salt legal system takes sodium bicarbonate, the requirement for anticorrosion of equipment can be reduced using this method, saves the construction investment of sodium bicarbonate processed,
The value of the ammonium sulfate of by-product has a clear superiority also above ammonium chloride in economic benefit.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the structural representation of the utility model sodium chloride evaporation concentration device；
Fig. 3 is the structural representation of the utility model crystallizer.
Embodiment
The utility model is further described below in conjunction with accompanying drawing：
A kind of integrated treatment chemical industry strong brine system, the system includes UF membrane workshop section, liquid salt is concentrated by evaporation workshop section, system
Sodium bicarbonate workshop section, sodium sulphate and ammonium sulfate sub-prime crystallization workshop section；High strong brine carries out being passed through UF membrane after pretreatment removes firmly first
The isolated sodium chloride production water of workshop section and sodium sulphate concentrated water, workshop section is concentrated by evaporation by liquid salt is entered after sodium chloride production water concentration,
Highly concentrated sodium chloride liquid salt is obtained as ion exchange resin regeneration agent, prepared by sodium sulphate concentrated water introducing sodium bicarbonate workshop section processed small
Soda, caused filtrate during sodium bicarbonate workshop section processed is subjected to sub-prime knot through sodium peroxydisulfate and ammonium sulfate sub-prime crystallization workshop section
Crystalline substance, ammonium sulfate product is prepared.
Described UF membrane workshop section includes one-level NF membrane 10, two level NF membrane 11 and the reverse osmosis being sequentially connected by pipeline
Permeable membrane 12；Described liquid salt is concentrated by evaporation strong brine storage tank 13, the sodium chloride evaporation that workshop section includes being sequentially connected by pipeline
Enrichment facility 14 and liquid salt storage tank 15；Described sodium bicarbonate workshop section processed includes the crystallizer 16, dense being sequentially connected by pipeline
Glass gall storage tank 17, reactor 18, sodium acid carbonate filter 19, sodium acid carbonate drier 20 and sodium acid carbonate automatic packaging machine 21；
What described sodium sulphate and ammonium sulfate sub-prime crystallization workshop section included being sequentially connected by pipeline first mixes liquid storage tank 22, once steams
Send out 24,25 DEG C of the 60 DEG C of filters of enrichment facility 23, one times filter 25, second and mix liquid storage tank 26, double evaporation-cooling enrichment facility
27th, secondary 60 DEG C of filters 28, ammonium sulfate drier 29 and ammonium sulfate automatic packaging machine 30.
In order to realize that whole system connects, the product in system in various pieces is fully used, realizes whole production process
The relatively low discharge capacity of middle waste residue, the degree of environmental pollution is preferably minimized, described one-level NF membrane 10 and two level NF membrane 11
The outlet of sodium sulphate concentrated water be connected to crystallizer 16, the brine outlet connection strong brine storage tank 13 of described reverse osmosis membrane 12,
Filtrate (liquid connection the first mixing liquid storage tank 22 of described sodium acid carbonate filter 19, described 60 DEG C of He of filter 24
Row's sodium sulphate outlet conduit of secondary 60 DEG C of filters 28 is connected to dense glass gall storage tank 17.
In order to reduce energy consumption, being reused by steam reduces operating cost, reduces environmental pollution, passes through supporting control
System can realize full automatic working, and continuous operation, securely and reliably, described sodium chloride evaporation concentration device 14 includes circulating pump
31st, heat exchanger 32, vaporization chamber 33, Crystallization Separation room 34, vapour compression machine 35 and condensed water storage tank 36；The outlet of circulating pump 31 connection
The tube-side inlet of heat exchanger 32, the feeding mouth of the tube side of heat exchanger 32 outlet connection vaporization chamber 33, the top of vaporization chamber 33 connection vapour pressure
The entrance of contracting machine 35, vaporization chamber 33 are internally provided with pumped vacuum systems 37, outlet and the Crystallization Separation room of the bottom of vaporization chamber 33
34 connections, the bottom of Crystallization Separation room 34 is provided with discharging opening；The shell side inlet of the outlet heat exchanger 32 of vapour compression machine 35,
The shell-side outlet of heat exchanger 32 connects condensed water storage tank 36 by steam trap 47.
Convenient and practical in order to improve the efficiency of crystallization, described crystallizer 16 includes flash distillation cylinder 38, flash distillation cylinder 38
Side wall is provided with pressure sensor 39, and the top of flash distillation cylinder 38 is provided with end socket 40, the side wall of flash distillation cylinder 38 be provided with into
Expects pipe 41, the bottom of flash distillation cylinder 38 are provided with cone 42；The gas discharge pipe 43 of opening upwards, cone are provided with end socket 40
Drain pipe 44 is provided with 42 slope section, the lower section of cone 42, which is connected with, deposits salt section 45, and the outer surface for depositing salt section 45 is provided with
Cooling coil 46.
In order to avoid being polluted to environment, the air outlet of described sodium acid carbonate drier 20 and ammonium sulfate drier 29
Cyclone dust collectors, the air outlet connection air-introduced machine of cyclone dust collectors are connected by pipeline.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the utility model example,
And the restriction not to embodiment.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.And thus
Among the obvious changes or variations amplified out is still in the scope of protection of the utility model.
Claims (2)
1. a kind of integrated treatment chemical industry strong brine system, it is characterised in that the system is dense including UF membrane workshop section, liquid salt evaporation
Contracting workshop section, sodium bicarbonate workshop section processed, sodium sulphate and ammonium sulfate sub-prime crystallization workshop section；
Described UF membrane workshop section includes one-level NF membrane, two level NF membrane and the reverse osmosis membrane being sequentially connected by pipeline；Institute
The liquid salt stated is concentrated by evaporation strong brine storage tank, sodium chloride evaporation concentration device and the liquid that workshop section includes being sequentially connected by pipeline
Body salt storage tank；Described sodium bicarbonate workshop section processed includes crystallizer, dense glass gall storage tank, reactor, the carbon being sequentially connected by pipeline
Sour hydrogen sodium filter, sodium acid carbonate drier and sodium acid carbonate automatic packaging machine；Described sodium sulphate crystallizes with ammonium sulfate sub-prime
Workshop section include by pipeline be sequentially connected first mix liquid storage tank, flush distillation enrichment facility, 60 DEG C of filters, 25 DEG C
Filter, the second mixing liquid storage tank, double evaporation-cooling enrichment facility, secondary 60 DEG C of filters, ammonium sulfate drier and ammonium sulfate are certainly
Dynamic packing machine；
The sodium sulphate concentrated water outlet of described one-level NF membrane and two level NF membrane is connected to crystallizer, described reverse osmosis membrane
Brine outlet connects strong brine storage tank, filtrate (liquid connection the first mixing liquid storage tank of described sodium acid carbonate filter, institute
The 60 DEG C of filters and row's sodium sulphate outlet conduit of secondary 60 DEG C of filters stated are connected to dense glass gall storage tank；
Described sodium chloride evaporation concentration device include circulating pump, heat exchanger, vaporization chamber, Crystallization Separation room, vapour compression machine and
Condensed water storage tank；Circulating-pump outlet connects heat exchanger tube pass entrance, the feeding mouth of heat exchanger tube pass outlet connection vaporization chamber, evaporation
Ceiling portion connects the entrance of vapour compression machine, and vaporization chamber is internally provided with pumped vacuum systems, the outlet of vaporization chamber bottom and knot
Brilliant separation chamber's connection, Crystallization Separation room bottom is provided with discharging opening；The shell side inlet of the outlet heat exchanger of vapour compression machine,
The shell-side outlet of heat exchanger connects condensed water storage tank by steam trap；
Described crystallizer includes flash distillation cylinder, and the side wall for flashing cylinder is provided with pressure sensor, flashes and set at the top of cylinder
End socket is equipped with, the side wall for flashing cylinder is provided with feed pipe, and the bottom for flashing cylinder is provided with cone；Opening is provided with end socket
Upward gas discharge pipe, drain pipe is provided with the slope section of cone, is connected with below cone and deposits salt section, deposit the outer of salt section
Surface is provided with cooling coil.
2. a kind of integrated treatment chemical industry strong brine system as claimed in claim 1, it is characterised in that described sodium acid carbonate is done
Dry device connects cyclone dust collectors, the air outlet connection air inducing of cyclone dust collectors with the air outlet of ammonium sulfate drier by pipeline
Machine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720267016.8U CN206645962U (en) | 2017-03-20 | 2017-03-20 | A kind of integrated treatment chemical industry strong brine system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720267016.8U CN206645962U (en) | 2017-03-20 | 2017-03-20 | A kind of integrated treatment chemical industry strong brine system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2696450C1 (en) * | 2019-01-09 | 2019-08-01 | Сергей Васильевич Афанасьев | Combined method of producing sodium bicarbonate and mixed type nitrogen fertilizer |
| CN113636576A (en) * | 2021-10-15 | 2021-11-12 | 国能龙源环保有限公司 | System and method for disposing and recycling miscellaneous salt in coal chemical industry |
-
2017
- 2017-03-20 CN CN201720267016.8U patent/CN206645962U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2696450C1 (en) * | 2019-01-09 | 2019-08-01 | Сергей Васильевич Афанасьев | Combined method of producing sodium bicarbonate and mixed type nitrogen fertilizer |
| CN113636576A (en) * | 2021-10-15 | 2021-11-12 | 国能龙源环保有限公司 | System and method for disposing and recycling miscellaneous salt in coal chemical industry |
| CN113636576B (en) * | 2021-10-15 | 2022-05-27 | 国能龙源环保有限公司 | System and method for disposing and recycling miscellaneous salt in coal chemical industry |
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