CN214891287U - Recycling device for purifying salt-making mother liquor slurry by flue gas method - Google Patents
Recycling device for purifying salt-making mother liquor slurry by flue gas method Download PDFInfo
- Publication number
- CN214891287U CN214891287U CN202120052313.7U CN202120052313U CN214891287U CN 214891287 U CN214891287 U CN 214891287U CN 202120052313 U CN202120052313 U CN 202120052313U CN 214891287 U CN214891287 U CN 214891287U
- Authority
- CN
- China
- Prior art keywords
- gas
- outlet
- liquid
- pipeline
- flue gas
- 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
Images
Landscapes
- Treating Waste Gases (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a recycle device of flue gas method purification salt manufacturing mother liquor thick liquid, including the pipeline connection desulfurizing tower in proper order, the hydrologic cycle compressor, whirlwind formula moisture separator, the desicator, the pipeline reactor, vapour and liquid separator, milipore filter filtration system, the flue gas that produces the boiler passes through the desulfurizing tower, the hydrologic cycle compressor, whirlwind formula moisture separator, the desicator obtains the pressure purification flue gas, it takes place carbonization reaction at the pipeline reactor with mother liquor thick liquid and original bittern, the gas-liquid mixture after the reaction separates out the residual gas through vapour and liquid separator, the residual mixed liquid filters through the milipore filter, obtain the filtrating respectively and strain solid salt mud, wherein the filtrating is retrieved and is carried out the salt and nitre coproduction or is passed through the nanofiltration membrane and is prepared liquid salt in the vacuum salt manufacturing triple effect evaporation jar, the salt mud is sent to the purification power plant flue gas, the flue gas is adopted the water cycle compressor to purify again after compressing and is applied to mother liquor thick liquid and is handled, fully utilizes solid-liquid-gas wastes, recycles resources, saves energy and reduces consumption.
Description
Technical Field
The utility model relates to a waste purification and recycle device of solid waste-liquid waste-gas waste, in particular to a recycle device of salt mother liquor slurry purified by a flue gas method.
Background
With the sustainable progress of economic development and industrialization in China, as the environmental protection pressure is continuously increased, the national requirements on the emission of solid waste, liquid waste and gas waste, the effective utilization of resources and the energy conservation and consumption reduction are higher and higher, so that the problems of solid waste, resource reutilization, energy conservation and consumption reduction are to be solved in the salt industry. The prior brine purification process by a flue gas method has the disadvantages of more used equipment, complex reaction process, overlong reaction time and increased production cost. In addition, most of the salt making mother liquor in the prior art is auxiliary materials or discharged outside, and the mother liquor is not effectively utilized. The most effective method for treating and utilizing the mother liquor is explored, the problem that the sulfate radical content of the high-nitrate brine is high and is unfavorable for the subsequent salt making process and the salt quality is also needed to be solved, and the problem is urgently needed to be solved in the salt industry. And the main component of the flue gas is N2、O2、CO2、H2O, which is directly discharged into the atmosphere and affects the environment,
in order to solve the problem, the utility model provides a recycle device of salt mother liquor thick liquid is made in flue gas method purification
Disclosure of Invention
The utility model discloses a solve useless-useless waste purification of liquid-useless waste and recycle technical problem provide a recycle device of salt mother liquor thick liquid of flue gas method purification system, and the device simplifies and purifies salt manufacturing technology, has reduced the user equipment, has shortened reaction time, has obviously improved carbonization reaction rate, reduce cost, and make full use of solid-liquid-gaseous waste, the resource is recycled, energy saving and consumption reduction.
The utility model discloses a device for purifying and utilizing mother liquor slurry for salt production by a flue gas purification method, which is characterized by comprising a boiler, a desulfurizing tower, a water circulation compressor, a cyclone gas-water separator, a dryer, a pipeline reactor, a gas-liquid separator and an ultrafiltration membrane filtering system;
the boiler is provided with a gas outlet for discharging flue gas, the gas outlet of the boiler is connected with a gas inlet of a desulfurizing tower through a pipeline, the gas outlet of the desulfurizing tower is connected with a gas inlet of a water circulation compressor through a pipeline, the gas outlet of the water circulation compressor is connected with a gas inlet of a cyclone gas-water separator through a pipeline, the gas outlet of the cyclone gas-water separator is connected with a gas inlet of a dryer through a pipeline, and the gas outlet of the dryer is connected with a gas inlet of a pipeline reactor through a pipeline;
the pipeline reactor is also provided with a liquid inlet for introducing halogen liquid, a gas-liquid outlet of the pipeline reactor is communicated with an inlet of the gas-liquid separator, a first outlet for discharging gas to the outside and a second outlet for discharging a solid-liquid mixture in the pipeline reactor are arranged above the gas-liquid separator, and the second outlet of the gas-liquid separator is communicated with an inlet of the ultrafiltration membrane filtering system;
the ultrafiltration membrane filtration system has a first outlet for discharging its internal salt slurry and a second outlet for discharging its internal mixed liquor.
Furthermore, a defoaming device is arranged on the water circulation compressor, and the defoaming device is a nano-scale defoaming device.
Further, a denitration and dust removal device is arranged between the boiler and the desulfurization tower.
Furthermore, the boiler is provided with a steam outlet which is communicated with an inlet of a shell side of the tube type heat exchanger, an outlet of the shell side of the tube type heat exchanger is communicated with a condensed water tank, an inlet of the tube side of the tube type heat exchanger is communicated with a gas outlet of the cyclone type gas-water separator, and an outlet of the tube side of the tube type heat exchanger is communicated with a gas inlet of the dryer through a pipeline. So that the moisture absorption material in the dryer is dried by the waste heat of the boiler so as to be continuously recycled; the water content of the flue gas after being dried by the dryer is less than or equal to 2 percent.
Further, a stop valve, an automatic regulating valve and a pH on-line detector are also arranged in the pipeline reactor; the pH online detector is connected with an online alarm, and the pH value of the alarm line is 9.0.
The process flow is as follows: the method comprises the steps of firstly denitrating and dedusting flue gas generated by a boiler, then introducing the flue gas into a desulfurizing tower for desulfurization treatment, then introducing the desulfurized flue gas into a water circulation compressor for compression until the pressure of the flue gas is 0.2-0.5 MPa, introducing the compressed flue gas into a cyclone type gas-water separator, removing water introduced by the water circulation compressor, introducing the dewatered flue gas into a dryer for further drying, introducing the dried flue gas into a pipeline reactor, and adding halogen liquid (mixed solution of original halogen and mother liquor slurry) into a liquid inlet above the pipeline reactor, carrying out carbonization reaction on the flue gas and the halogen liquid in the pipeline reactor, a pH on-line detector is also arranged in the pipeline reactor and is connected with an on-line alarm, the pH value of the online alarm line is 9.0, the control range of the pH value after the carbonization reaction is 8.5-9.0, and solid-liquid-gas mixed liquid is obtained after the reaction is finished. The method comprises the steps of conveying a residual solid-liquid mixed solution in the gas-liquid separator to an ultrafiltration membrane filtering system through a pipeline for filtering, arranging a slag discharge port below the ultrafiltration membrane filtering system, performing pipeline connection on the slag discharge port and a desulfurizing tower, conveying salt sludge solids (pretreatment) generated by reaction to the desulfurizing tower through the pipeline to serve as a desulfurizing agent, recovering filtrate obtained by filtering to perform salt and nitrate co-production for preparing salt and nitrate or prepare liquid salt through a nanofiltration membrane, wherein a mother liquor slurry byproduct obtained by the salt and nitrate co-production is continuously mixed with original halogen and then returns to the pipeline reactor to serve as a raw material.
The utility model adopts the pressurized flue gas pipeline to convey the mother liquor slurry and the raw brine and simultaneously carry out carbonization reaction, simplifies the purification process, reduces the used equipment and obviously improves the carbonization reaction rate; adopting unsaturated original halogen to utilize two alkalis in the mother liquor slurry and dissolve solid salt and nitre in the mother liquor slurry; the salty mud is applied to purifying flue gas through pretreatment, impurity gas and smoke dust particles in the flue gas are removed, solid-liquid-gas waste is fully utilized, resources are recycled, and energy conservation and consumption reduction are realized.
Drawings
FIG. 1 shows a recycling device for mother liquor slurry produced by purifying with flue gas method
In the figure: 1-boiler, 2-desulfurizing tower, 3-water circulation compressor, 4-cyclone gas-water separator, 5-dryer, 6-pipeline reactor, 7-gas-liquid separator and 8-ultrafiltration membrane filtering system.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
A recycling device for mother liquor slurry produced by purifying with a flue gas method comprises a boiler 1, a desulfurizing tower 2, a water circulation compressor 3, a cyclone type gas-water separator 4, a dryer 5, a pipeline reactor 6, a gas-liquid separator 7 and an ultrafiltration membrane filtering system 8;
the boiler 1 is provided with a gas outlet for discharging flue gas, the gas outlet of the boiler 1 is connected with a gas inlet of a desulfurizing tower 2 through a pipeline, the gas outlet of the desulfurizing tower 2 is connected with a gas inlet of a water circulating compressor 3 through a pipeline, the gas outlet of the water circulating compressor 3 is connected with a gas inlet of a cyclone gas-water separator 4 through a pipeline, the gas outlet of the cyclone gas-water separator 4 is connected with a gas inlet of a dryer 5 through a pipeline, and the gas outlet of the dryer 5 is connected with a gas inlet of a pipeline reactor 6 through a pipeline;
a liquid inlet for introducing halogen liquid is also formed in the pipeline reactor 6, a gas-liquid outlet of the pipeline reactor 6 is communicated with an inlet of the gas-liquid separator 7, a first outlet for discharging gas to the outside and a second outlet for discharging a solid-liquid mixture in the gas-liquid separator 7 are formed above the gas-liquid separator 7, and the second outlet of the gas-liquid separator 7 is communicated with an inlet of the ultrafiltration membrane filtering system 8;
the ultrafiltration membrane filtration system 8 has a first outlet for discharging its internal salt slurry and a second outlet for discharging its internal mixed liquor.
The boiler 1 is provided with a steam outlet which is communicated with an inlet of a shell side of the tube type heat exchanger, an outlet of the shell side of the tube type heat exchanger is communicated with a condensed water tank, an inlet of the tube side of the tube type heat exchanger is communicated with a gas outlet of the cyclone type gas-water separator 4, and an outlet of the tube side of the tube type heat exchanger is communicated with a gas inlet of the dryer through a pipeline. Drying the moisture absorption material in the dryer by using the waste heat of the boiler so as to continuously recycle the moisture absorption material; the water content of the flue gas after being dried by the dryer is less than or equal to 2 percent. The water circulation compressor 3 is provided with a defoaming device. And a denitration and dust removal device is arranged between the boiler and the desulfurization tower.
The method comprises the steps of firstly denitrating and dedusting flue gas generated by a boiler 1, introducing the flue gas into a desulfurizing tower 2 for desulfurization treatment, introducing the desulfurized flue gas into a water circulation compressor 3 for compression until the pressure of the flue gas is 0.2-0.5 MPa, introducing the compressed flue gas into a cyclone type gas-water separator 4, removing water introduced by the water circulation compressor 3, introducing the water-removed flue gas into a dryer 5 for further drying until the moisture content of the flue gas is less than or equal to 2.0%, introducing the dried flue gas into a pipeline reactor 6, adding halogen liquid (mixed liquid of original halogen and mother liquor slurry) into a liquid inlet above the pipeline reactor 6, carrying out carbonization reaction on the flue gas and the halogen liquid in the pipeline reactor 6, arranging a pH online detector in the pipeline reactor 6, connecting the pH online detector with an online alarm, wherein the pH value of the online alarm line is 9.0, and the control range of the pH value after the carbonization reaction is 8.5-9.0, after the reaction is finished, a solid-liquid-gas mixed solution is obtained. A gas-liquid outlet of the pipeline reactor 6 is communicated with an inlet of a gas-liquid separator 7, an exhaust port is arranged above the gas-liquid separator 7 and used for discharging residual gas after reaction, the residual solid-liquid mixed liquid in the gas-liquid separator 7 is conveyed to an ultrafiltration membrane filtering system 8 through a pipeline for filtering, a slag discharge port is arranged below the ultrafiltration membrane filtering system 8 and is in pipeline connection with a desulfurizing tower 2, salt sludge solids (pretreatment) generated by the reaction are conveyed to the desulfurizing tower 2 through a pipeline to be used as desulfurizing agents for purifying flue gas, filtrate obtained by filtering is recycled for salt-nitrate co-production for producing salt and nitrate or for preparing liquid salt through a nanofiltration membrane, and mother liquor slurry side products obtained by the salt-nitrate co-production are continuously mixed with original halogen and then return to the pipeline reactor 6 to be used as raw materials.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. A recycle device of mother liquor slurry for purifying and preparing salt by a flue gas method is characterized in that: comprises a boiler (1), a desulfurizing tower (2), a water circulation compressor (3), a cyclone type gas-water separator (4), a dryer (5), a pipeline reactor (6), a gas-liquid separator (7) and an ultrafiltration membrane filtering system (8);
the boiler (1) is provided with a gas outlet for discharging flue gas, the gas outlet of the boiler (1) is connected with a gas inlet of a desulfurizing tower (2) through a pipeline, the gas outlet of the desulfurizing tower (2) is connected with a gas inlet of a water circulation compressor (3) through a pipeline, the gas outlet of the water circulation compressor (3) is connected with a gas inlet of a cyclone gas-water separator (4) through a pipeline, the gas outlet of the cyclone gas-water separator (4) is connected with a gas inlet of a dryer (5) through a pipeline, and the gas outlet of the dryer (5) is connected with a gas inlet of a pipeline reactor (6) through a pipeline;
a liquid inlet for introducing halogen liquid is also formed in the pipeline reactor (6), a gas-liquid outlet of the pipeline reactor (6) is communicated with an inlet of the gas-liquid separator (7), a first outlet for discharging gas to the outside and a second outlet for discharging a solid-liquid mixture in the gas-liquid separator (7) are formed above the gas-liquid separator (7), and the second outlet of the gas-liquid separator (7) is communicated with an inlet of the ultrafiltration membrane filtering system (8);
the ultrafiltration membrane filtration system (8) has a first outlet for discharging its internal salt slurry and a second outlet for discharging its internal mixed liquor.
2. The recycling device of the mother liquor slurry for purification and salt production by the flue gas method according to claim 1, is characterized in that: the boiler (1) is provided with a steam outlet which is communicated with an inlet of a shell side of the tubular heat exchanger, an inlet of a tube side of the tubular heat exchanger is communicated with an air outlet of the cyclone-type gas-water separator (4), and an outlet of the tube side of the tubular heat exchanger is communicated with an air inlet of the dryer (5) through a pipeline.
3. The recycling device of the mother liquor slurry for purification and salt production by the flue gas method according to claim 1, is characterized in that: and a defoaming device is arranged on the water circulation compressor (3).
4. The recycling device of the mother liquor slurry for purification and salt production by the flue gas method according to claim 1, is characterized in that: and a denitration and dust removal device is arranged between the boiler (1) and the desulfurization tower (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120052313.7U CN214891287U (en) | 2021-01-08 | 2021-01-08 | Recycling device for purifying salt-making mother liquor slurry by flue gas method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120052313.7U CN214891287U (en) | 2021-01-08 | 2021-01-08 | Recycling device for purifying salt-making mother liquor slurry by flue gas method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214891287U true CN214891287U (en) | 2021-11-26 |
Family
ID=78864491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120052313.7U Active CN214891287U (en) | 2021-01-08 | 2021-01-08 | Recycling device for purifying salt-making mother liquor slurry by flue gas method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214891287U (en) |
-
2021
- 2021-01-08 CN CN202120052313.7U patent/CN214891287U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101637685B (en) | Comprehensive treatment method of sulfur-containing flue gas | |
| CN101624197B (en) | Technology for calcining and recycling magnesium desulfurizing byproduct containing magnesium sulfite | |
| JPH06226042A (en) | Method for removal of sulfur dioxide from heated gaseous stream containing sulfur dioxide and for production of alpha type calcined gypsum | |
| CN214891287U (en) | Recycling device for purifying salt-making mother liquor slurry by flue gas method | |
| CN209900930U (en) | Wet flue gas desulfurization system based on four absorption towers | |
| CN218962222U (en) | System for recycling ammonia and by-product active calcium through ammonia-calcium desulfurization | |
| CN111153416A (en) | System and method for preparing ammonium sulfate from active coke desulfurization rich gas | |
| CN113087104B (en) | System and method for preparing elemental sulfur through liquid-phase catalytic disproportionation | |
| CN109095731A (en) | A kind of system based on magnesium processes desulfurization wastewater high-purity magnesium hydroxide | |
| CN109704380A (en) | A method of continuously preparing precipitated calcium carbonate filler using power-plant flue gas | |
| CN115716078A (en) | Method and system for resource utilization of carbon dioxide | |
| CN112830505B (en) | Method for purifying salt mother liquor slurry by flue gas method | |
| CN214437829U (en) | Energy-saving environment-friendly ammonia desulphurization zero-emission system of sulfur recovery device | |
| CN115006982A (en) | Method for desulfurizing and carbon-fixing coal-fired flue gas by using carbide slag slurry | |
| CN212383460U (en) | Treatment system for absorbing tail gas sulfur dioxide gas | |
| CN211098293U (en) | Equipment of wet process deacidification | |
| CN209338324U (en) | A kind of system based on magnesium processes desulfurization wastewater high-purity magnesium hydroxide | |
| CN112717653A (en) | Energy-saving environment-friendly ammonia desulphurization zero-emission system and method of sulfur recovery device | |
| CN112794347A (en) | By using CO2Combined device and process for preparing heavy alkali by drying and carbonizing ammonium chloride in concentrated gas | |
| CN220257643U (en) | Desulfurization system for co-producing active calcium or gypsum by ammonia and calcium combined regenerated ammonia water | |
| CN111003694A (en) | Environment-friendly process for preparing concentrated sulfuric acid by adopting sulfur | |
| CN211521611U (en) | Purification system of heavy alkali or wet baking soda | |
| CN211169850U (en) | Sulfur dioxide resource recycling system | |
| CN214167606U (en) | Utilize boiler tail gas to handle device of high alkali of polyformaldehyde industry high organic matter waste liquid | |
| CN219424091U (en) | Nitrogen oxide absorption liquid recycling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |