CN203807290U - Novel waste heat utilization zero release device of desulfurization waste water - Google Patents
Novel waste heat utilization zero release device of desulfurization waste water Download PDFInfo
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- CN203807290U CN203807290U CN201420209721.9U CN201420209721U CN203807290U CN 203807290 U CN203807290 U CN 203807290U CN 201420209721 U CN201420209721 U CN 201420209721U CN 203807290 U CN203807290 U CN 203807290U
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- 239000002351 wastewater Substances 0.000 title claims abstract description 52
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 35
- 230000023556 desulfurization Effects 0.000 title claims abstract description 27
- 239000002918 waste heat Substances 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 239000007787 solid Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000000926 separation method Methods 0.000 claims abstract description 17
- 150000002500 ions Chemical class 0.000 claims abstract description 16
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 10
- 238000002203 pretreatment Methods 0.000 claims abstract description 10
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 9
- 229910001415 sodium ion Inorganic materials 0.000 claims abstract description 6
- 238000010612 desalination reaction Methods 0.000 claims description 41
- 238000000108 ultra-filtration Methods 0.000 claims description 34
- 239000012528 membrane Substances 0.000 claims description 23
- 150000003839 salts Chemical class 0.000 claims description 16
- 238000002425 crystallisation Methods 0.000 claims description 15
- 230000008025 crystallization Effects 0.000 claims description 15
- 239000010881 fly ash Substances 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 239000002956 ash Substances 0.000 claims description 7
- 239000006228 supernatant Substances 0.000 claims description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 241000370738 Chlorion Species 0.000 claims description 5
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 239000013505 freshwater Substances 0.000 claims description 5
- 238000005352 clarification Methods 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 239000010802 sludge Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 3
- 239000000779 smoke Substances 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000011033 desalting Methods 0.000 abstract 3
- 238000001704 evaporation Methods 0.000 abstract 2
- 238000011156 evaluation Methods 0.000 abstract 1
- 238000005189 flocculation Methods 0.000 description 6
- 230000016615 flocculation Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 4
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- -1 electric power Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000003599 food sweetener Nutrition 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000019600 saltiness Nutrition 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003765 sweetening agent Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Abstract
The utility model discloses a novel waste heat utilization zero release device of desulfurization waste water. The device comprises a desalting pre-treatment system (a neutralizing module, a weight removing module and a solid removing module), and a desalting system (a desalinating and reducing module, an evaporating and crystallizing module and a gas-solid separation module), wherein for waste water obtained after the desulfurization waste water is treated by the first part of pre-treatment (neutralizing, weight removing and solid removing), the pH value, SS and impurities such as heavy metals are completely removed. Ions in water are mainly chloridions and sodium ions, and the desalting system adopts the desalinating and reducing module, the evaporating and crystallizing module and the gas-solid separation module to thoroughly recycle high-salt waste water. The device disclosed by the utility model is controlled by an electric control system (an electric module, a monitoring module and a control module), so that different parameters can be set according to the load change of waste water and smoke temperature of a boiler in use to realize the optimal operating effect. By adopting a waste heat utilizing technology, water for desulfurization process in same amount can be saved. 100% of desulfurization waste water can be fully recycled, and the demands on environmental evaluation and environmental protection acceptance can be satisfied.
Description
Technical field
The utility model discloses a kind of Novel desulphurization waste water residual heat and utilizes Zero emission device, divides and belongs to desulfurization wastewater processing technology field by International Patent Classification (IPC) (IPC).
Background technology
New " the national environmental protection Eleventh Five-Year Plan " promulgated of country more explicitly calls in key industrys such as iron and steel, electric power, chemical industry, coals promotes cycling utilization of wastewater; strive for that waste water discharges less or " zero release "; in desulfurization wastewater high, the PH of heavy metal content acid high, turbidity is higher, corrodibility is high, intractability high; therefore, desulfurization wastewater reuse problem is the technical issues that need to address in industry always.
Existing desulfurization wastewater traditional treatment method is through adopting calcium hydroxide to regulate Ph, forms precipitation of hydroxide with heavy metal ion; Cr
3+hg
2+fe
3+form sulfide precipitation with organosulfur; Precipitate and solidify by the conventional physical method of the flocculation sediments such as flocculation agent again, complex process, operation amount is large, difficult to be controlled automatically, and most power plant operation result is undesirable.The high saltiness of waste water after treatment and high Cl-concentration, extremely strong to the corrodibility of metal and equipment, cause desulfurization wastewater after treatment cannot be back to other system, realize " zero release " requirement.
Other " zero release " technique of existing desulfurization wastewater, retirement method, rush grey method, embrane method and flue spray method: retirement method is after desulfurization wastewater is mixed with concentrated by-produced gypsum, to drain into ash to stack, but gypsum by-product is abandoned completely, need large stacking place, the wet desulfurizing process system not fully utilizing; Rush grey method and directly enter ash trench system, but the amount of water required is limited, cause the corrosion of deashing device and pipeline, cannot fully utilize gypsum, economic serviceability is not strong, if adopt pneumatic ash transmitting system, cannot implement; Embrane method is that membrane separation technique separates, and how the dense water that treating processes produces, effectively utilize or harmlessness disposing is the problem that a needs solves; Flue spray method is with being pumped to front flue of dust collector, compressed air is by desulfurization wastewater atomization in front flue of dust collector, the method investment is less, running cost is lower, but need to carry out systematic research and accounting to boiler, steam turbine, sweetener, dust removal installation, ature of coal etc., carry out detailed system design according to operating parameter, exhaust gas volumn, flue-gas temperature etc., otherwise may cause disadvantageous effect to relevant device.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of Novel desulphurization waste water residual heat to utilize zero release solution, this equipment can accomplish that desulfurization wastewater 100% recycles completely, be applied to desulphurization system, save the sulfur removal technology water of equal amts, reduce Water of Power Plant consumption, can realize power plant desulfurization waste water zero emission.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of Novel desulphurization waste water residual heat utilizes zero release solution, comprise in the desulfurization wastewater pre-treatment connecting successively and module, except molality piece, except solid model piece and desalination decrement module, evaporative crystallization module, gas solid separation module, wherein:
In desulfurization wastewater pre-treatment and module, in comprising and case and hold the dosing tank of neutralizing agent, dosing tank with in be connected with case and add neutralizing agent in case in for waste water part acid group, halogen family ion be corresponding inorganic salt, water outlet is connected to except molality piece;
Except molality piece, comprise except solid case and hold the dosing tank except solid agent, dosing tank be connected with except loaded van and add except heavy prescription to except in loaded van for removing the heavy metal ion of anhydrating, water outlet is connected to except solid model piece;
Except solid model piece, it comprises the clarification case, electric flocculation tanks and the ultra-filtration membrane group that connect successively, and the mud that electric flocculation tanks is produced is to sludge dewatering equipment, ultra-filtration membrane group filtered water intermediate ion with chlorion and sodium ion for leading and be passed into desalination decrement module;
Desalination decrement module, it is high salt film group, and the filtration fresh water of high salt film group is process water, and the dense water of filtration of high salt film group is connected to evaporative crystallization module;
Evaporative crystallization module, its evaporative crystallizer and the water pump matching, water pump enters into evaporative crystallizer by dense water after desalination by Pipe spraying and forms very tiny water droplet, and water droplet and steam enter gas solid separation module with flue gas;
Gas solid separation module, comprises fly-ash separator and desulfuration absorbing tower, and in fly-ash separator electric charge air-flow, crystallisate enters ash bucket with flyash and discharges, and water vapour enters desulfuration absorbing tower and absorbed by sprayed slurry a large amount of in it.
Further, described ultra-filtration membrane group is by two ultra-filtration membrane groups and ultrafiltration cartridge filter corresponding matching, each ultra-filtration membrane group is by 8 above ultrafiltration membrane elements parallel combination film forming groups, film group filtered water enters into ultrafiltration and produces water tank, ultrafiltration is produced water tank and is connected to high salt film group by high-pressure pump, and ultra-filtration membrane group connects recoil pump.
Further, described high salt film group is made up of for water after ultrafiltration is desalinated to processing two-stage desalination film group, the supernatant water of first step desalination film group directly enters into RO desalination water tank, the filtered water of first step desalination film group supernatant water after second stage desalination film group is desalinated again enters into above-mentioned RO desalination water tank, and the dense water of second stage desalination film group is pumped into evaporative crystallizer.
The utlity model has beneficial effect as follows:
1, the utility model adopts UTILIZATION OF VESIDUAL HEAT IN technology, without other thermal source of power plant, has reduced power plant's energy consumption;
2, desulfurization wastewater is recycled completely in desulphurization system, saves the sulfur removal technology water of equal amts, has reduced Water of Power Plant consumption;
3, the utility model construction cost, working cost are low, and floor space is only 1/4 of evaporative crystallization technology, significantly reduces power plant's environmental protection cost;
4, the utility model can accomplish desulfurization wastewater 100% to recycle completely, meets environmental impact assessment and environmental protection inspection and acceptance requirement.
Brief description of the drawings
Fig. 1 is the utility model FB(flow block).
Fig. 2 is the utility model ultra-filtration membrane group and high salt film group connection diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Embodiment: refer to Fig. 1 and Fig. 2, a kind of Novel desulphurization waste water residual heat utilizes zero release solution, comprise successively in the desulfurization wastewater pre-treatment connecting and module 1, except molality piece 2, except solid model piece 3 and desalination decrement module 4, evaporative crystallization module 5, gas solid separation module 6, wherein:
In desulfurization wastewater pre-treatment and module 1, in comprising and case and hold the dosing tank of neutralizing agent, dosing tank with in be connected with case and add neutralizing agent in and case in for and waste water part acid group, halogen family ion be corresponding inorganic salt, in and case in and supernatant liquor be connected to except molality piece;
Except molality piece 2, comprise except solid case and hold the dosing tank except solid agent, dosing tank be connected with except loaded van and add except heavy prescription to except in loaded van for removing the heavy metal ion of anhydrating, water outlet is connected to except solid model piece 3;
Except solid model piece 3, it comprises the clarification case, electric flocculation tanks and the ultra-filtration membrane group 31 that connect successively, and the mud that electric flocculation tanks is produced is to sludge dewatering equipment, ultra-filtration membrane group 31 filtered water intermediate ions with chlorion and sodium ion for leading and be passed into desalination decrement module;
Desalination decrement module 4, it is high salt film group 41, and the filtration fresh water of high salt film group is process water, and the dense water of filtration of high salt film group is connected to evaporative crystallization module 5;
Evaporative crystallization module 5, its evaporative crystallizer 51 and the water pump 52 matching, water pump enters into evaporative crystallizer by dense water after desalination by Pipe spraying and forms very tiny water droplet, and water droplet and steam enter gas solid separation module 6 with flue gas;
Gas solid separation module 6, comprise fly-ash separator 61 and desulfuration absorbing tower, in fly-ash separator electric charge air-flow, crystallisate enters ash bucket discharge with flyash, and water vapour enters desulfuration absorbing tower and absorbed by sprayed slurry a large amount of in it, fly-ash separator is connected with desulfuration absorbing tower 62 by blower fan 63 and smoke heat replacing device 64.
Refer to Fig. 1 and Fig. 2, ultra-filtration membrane group 31 of the present utility model is by two ultra-filtration membrane groups and ultrafiltration cartridge filter 32 corresponding matching, each ultra-filtration membrane group is by 8 above ultrafiltration membrane elements parallel combination film forming groups, film group filtered water enters into ultrafiltration and produces water tank 33, ultrafiltration is produced water tank and is connected to high salt film group by high-pressure pump 34, and ultra-filtration membrane group connects recoil pump.High salt film group 41 is made up of for water after ultrafiltration is desalinated to processing two-stage desalination film group, the supernatant water of first step desalination film group directly enters into RO desalination water tank 42, the filtered water of first step desalination film group supernatant water after second stage desalination film group is desalinated again enters into above-mentioned RO desalination water tank, and the dense water (dense water tank 43) of second stage desalination film group is pumped into evaporative crystallizer.
In of the present utility model and case add neutralizing agent SF-PH-01 waste water ph be adjusted between 9.0 to 9.5, the main following effect of this medicament:
Be corresponding inorganic salt by part acid group, the neutralization of halogen family ion,
By make part heavy metal with colloid form be precipitated out completely,
In waste water and after weakly alkaline atmosphere, be conducive to further carry out complexing and crystalline deposit for heavy metal ion;
Do not introduce hardness positively charged ion, can remove the temporary hardness in water simultaneously.
Through desalination pre-treatment first part (neutralization, except heavy, except solid) waste water after treatment, in its water, the impurity such as pH value, SS, heavy metal has been removed completely, water intermediate ion is taking chlorion and sodium ion as main.Desalination system adopts desalination decrement module, evaporative crystallization module and gas-solid separation module, realizes the thorough recycling of high slat-containing wastewater.
The utility model WHUS discloses a kind of Novel desulphurization waste water residual heat and utilizes Zero emission device, comprise desalination pretreatment system (in and module, except molality piece with except solid model piece), desalination system (desalination decrement module, evaporative crystallization module, gas solid separation module), desulfurization wastewater is through (the neutralization of pre-treatment first part, except heavy, except solid) waste water after treatment, pH value in its water, SS, the impurity such as heavy metal are removed completely, water intermediate ion is taking chlorion and sodium ion as main, and desalination system adopts desalination decrement module, evaporative crystallization module and gas-solid separation module, realize the thorough recycling of high slat-containing wastewater.The utility model is by electrical control system (electrical module, monitoring modular, control module, three large systems, nine large modules altogether) control, when use, can set different parameters according to the load variations of waste water, boiler smoke temperature, make it to reach optimal running effect.
Desulfurization wastewater, after sea water desaltination film is processed, produces dense water and fresh water.Desulfurization wastewater is pressed 49m
3/ h calculates, and the fresh water production water yield is 30m
3/ h, effluent quality is better than municipal water water quality, can reuse to Controlling Auxiliaries in Power Plants cooling water system or boiler feed water; Waste water is by original 49m
3/ h decrement is to 19m
3the dense water of/h, enters evaporative crystallization module.Dense water 19m
3crystallisate and the steam of/h after evaporative crystallization module enters gas solid separation module with flue gas, in this module, crystallisate is charged in fly-ash separator air-flow, under electric field action, with pneumatic separation, enters ash bucket discharge with flyash, water vapour effectively reduces flue gas than resistance simultaneously, improves efficiency of dust collection.The water vapour of high-quality enters in desulfuration absorbing tower, is absorbed a large amount of sprayed slurry in tower and absorbs, and can replace the identical evaporated water in absorption tower, saves 19m
3/ h water, reaches the object that desulfurization wastewater is recycled completely.
Above record, only, for utilizing the embodiment of this origination techniques content, modification, variation that any those skilled in the art use this creation to do, all belong to the scope of the claims that this creation is advocated, and be not limited to those disclosed embodiments.
Claims (3)
1. Novel desulphurization waste water residual heat utilizes a Zero emission device, it is characterized in that comprising successively in the desulfurization wastewater pre-treatment connecting and module, except molality piece, except solid model piece and desalination decrement module, evaporative crystallization module, gas solid separation module, wherein:
In desulfurization wastewater pre-treatment and module, in comprising and case and hold the dosing tank of neutralizing agent, dosing tank with in be connected with case and add neutralizing agent in case in for waste water part acid group, halogen family ion be corresponding inorganic salt, water outlet is connected to except molality piece;
Except molality piece, comprise except solid case and hold the dosing tank except solid agent, dosing tank be connected with except loaded van and add except heavy prescription to except in loaded van for removing the heavy metal ion of anhydrating, water outlet is connected to except solid model piece;
Except solid model piece, it comprises the clarification case, the ultra-filtration membrane group that connect successively, and the mud that clarification case is produced is to sludge dewatering equipment, ultra-filtration membrane group filtered water intermediate ion with chlorion and sodium ion for leading and be passed into desalination decrement module;
Desalination decrement module, it is high salt film group, and the filtration fresh water of high salt film group is process water, and the dense water of filtration of high salt film group is connected to evaporative crystallization module;
Evaporative crystallization module, its evaporative crystallizer and the water pump matching, water pump enters into evaporative crystallizer by dense water after desalination by Pipe spraying and forms very tiny water droplet, and water droplet and steam enter gas solid separation module with flue gas;
Gas solid separation module, comprises fly-ash separator and desulfuration absorbing tower, and in fly-ash separator electric charge air-flow, crystallisate enters ash bucket with flyash and discharges, and water vapour enters desulfuration absorbing tower and absorbed by sprayed slurry a large amount of in it.
2. Novel desulphurization waste water residual heat according to claim 1 utilizes Zero emission device, it is characterized in that: described ultra-filtration membrane group is by two ultra-filtration membrane groups and ultrafiltration cartridge filter corresponding matching, each ultra-filtration membrane group is by 8 above ultrafiltration membrane elements parallel combination film forming groups, film group filtered water enters into ultrafiltration and produces water tank, ultrafiltration is produced water tank and is connected to high salt film group by high-pressure pump, and ultra-filtration membrane group connects recoil pump.
3. Novel desulphurization waste water residual heat according to claim 1 and 2 utilizes Zero emission device, it is characterized in that: described high salt film group is made up of for water after ultrafiltration is desalinated to processing two-stage desalination film group, the supernatant water of first step desalination film group directly enters into RO desalination water tank, the filtered water of first step desalination film group supernatant water after second stage desalination film group is desalinated again enters into above-mentioned RO desalination water tank, and the dense water of second stage desalination film group is pumped into evaporative crystallizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209721.9U CN203807290U (en) | 2014-04-28 | 2014-04-28 | Novel waste heat utilization zero release device of desulfurization waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209721.9U CN203807290U (en) | 2014-04-28 | 2014-04-28 | Novel waste heat utilization zero release device of desulfurization waste water |
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|---|---|
| CN203807290U true CN203807290U (en) | 2014-09-03 |
Family
ID=51446075
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105692986A (en) * | 2014-11-24 | 2016-06-22 | 中国石油化工股份有限公司 | Waste salt comprehensive utilization processing method |
| CN106365232A (en) * | 2016-11-15 | 2017-02-01 | 青岛达能环保设备股份有限公司 | Low-temperature sprinkling and evaporation treatment method for desulfurization waste water |
| CN107098423A (en) * | 2017-05-18 | 2017-08-29 | 北京必可测科技股份有限公司 | A kind of method for the high-salinity wastewater zero-emission for making to produce in industrial production |
| CN109305737A (en) * | 2018-09-03 | 2019-02-05 | 清华大学 | A kind of desulfurization water zero discharge and high-purity sodium chloride extracting method based on thermal method |
-
2014
- 2014-04-28 CN CN201420209721.9U patent/CN203807290U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105692986A (en) * | 2014-11-24 | 2016-06-22 | 中国石油化工股份有限公司 | Waste salt comprehensive utilization processing method |
| CN105692986B (en) * | 2014-11-24 | 2018-12-28 | 中国石油化工股份有限公司 | A kind of processing method of abraum salt comprehensive utilization |
| CN106365232A (en) * | 2016-11-15 | 2017-02-01 | 青岛达能环保设备股份有限公司 | Low-temperature sprinkling and evaporation treatment method for desulfurization waste water |
| CN107098423A (en) * | 2017-05-18 | 2017-08-29 | 北京必可测科技股份有限公司 | A kind of method for the high-salinity wastewater zero-emission for making to produce in industrial production |
| CN109305737A (en) * | 2018-09-03 | 2019-02-05 | 清华大学 | A kind of desulfurization water zero discharge and high-purity sodium chloride extracting method based on thermal method |
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| GR01 | Patent grant |