CN204999764U - Coking desulfurization liquid water disposal equipment - Google Patents
Coking desulfurization liquid water disposal equipment Download PDFInfo
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- CN204999764U CN204999764U CN201520756456.0U CN201520756456U CN204999764U CN 204999764 U CN204999764 U CN 204999764U CN 201520756456 U CN201520756456 U CN 201520756456U CN 204999764 U CN204999764 U CN 204999764U
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- storage tank
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- water disposal
- liquid water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model discloses a coking desulfurization liquid water disposal equipment relates to desulfurization liquid water disposal technical field. A coking desulfurization liquid water disposal equipment, includes liquid tank, stills for air blowing, centrifugal separator, oxidation liquid storage tank, correction liquor storage tank, membrane filter equipment, oxidation clear solution storage tank, decoloration cauldron, plate filtration machine, decoloration clear solution storage tank, evaporation cauldron, sulphur ammonium centrifugal separator, ammonium thiocyanate mother liquor storage tank, crystallization kettle, ammonium thiocyanate centrifugal separator, the lean solution storage tank that connects gradually through the pipeline, wherein oxidation liquid storage tank install agitating unit, decoloration cauldron and plate filtration machine between install the screw pump. The utility model discloses simple structure, easily operation, energy -conservation, operation are stably.
Description
Technical field
The utility model relates to field of desulfurization waste liquid treatment technology, is specifically related to the coking desulfurization waste liquor treatment facility that a kind of coking desulfurization waste liquor produces high-purity sulfuric acid ammonium and ammonium thiocyanate.
Background technology
At present, in the technique of domestic process coking desulfurization waste liquor, tradition is put forward salt technique and is: material enters in independent stills for air blowing, and temperature increasing catalyst is oxidized, and makes ammonium thiosulfate be oxidized to ammonium sulfate, and by product is elemental sulfur simultaneously; The oxidation solution that oxidation obtains, first by centrifuge, filters elemental sulfur; The filtrate obtained enters decolouring still by impeller pump again and adds gac and decolour, and the solution after decolouring makes decolouring clear liquid be separated with gac by flame filter press; Clear liquid after decolouring directly enters evaporating kettle and crystallization kettle to carry out evaporative crystallization and obtains ammonium sulfate and ammonium thiocyanate product.
Namely tradition puies forward salt technique is directly enter bleaching workshop section after doctor solution oxidation, there is following shortcoming in this technique: (1) is though solution filters through whizzer after oxidation solution filtration, still containing oxidation generate tiny, fail the impurity such as simple substance sulphur granule, ferric iron, muriate that the machine that is centrifuged filters out, to the purity of subsequent product be affected, and make product purity be difficult to be up to state standards; (2) though solution filters through whizzer after oxidation solution filtration, still containing oxidation generate trickle, fail the simple substance sulphur granule that the machine that is centrifuged filters out, because these simple substance sulphur granules after oxidation filtration are tiny, sulphur floatation of foam can be formed in decolouring still upper end and be adsorbed in activated carbon surface in decolorization, the decoloring ability of gac is declined greatly, and the amounts of activated carbon that processed in units amount consumes increases; (3) solution after oxidation filtration is still containing Fe
2+ion stabilizedly exist in solution, the existence of this material all will affect the product purity of ammonium sulfate, ammonium thiocyanate and Sodium Thiocyanate 99, and product purity can not be up to state standards.
In order to solve the above-mentioned defect that prior art exists, applicant have developed the equipment that a kind of flocculation membrane filtration for the treatment of coking desulfurization waste liquor produces high-purity sulfuric acid ammonium and ammonium thiocyanate.
Summary of the invention
The purpose of this utility model is to provide a kind of coking desulfurization waste liquor treatment facility.
The utility model is achieved through the following technical solutions:
A kind of coking desulfurization waste liquor treatment facility, comprise connected successively by pipeline original fluid container, stills for air blowing, whizzer, oxidation solution storage tank, adjustment liquid storage tank, membrane filter appts, oxidation clear liquid storage tank, decolouring still, flame filter press, decolouring clear liquid storage tank, evaporating kettle, sulphur ammonium whizzer, ammonium thiocyanate mother liquor storage tank, crystallization kettle, ammonium thiocyanate whizzer, lean solution storage tank; Wherein said oxidation solution storage tank is provided with whipping appts; Between described decolouring still and flame filter press, spiral pump is installed.
Further, described membrane filter appts is ceramic membrane filter device.
The utility model utilizes flocculation agent and regulator solution pH value, makes the elemental sulfur in oxidation solution and Fe
2+with OH in solution
-the Fe(OH that reaction produces)
2colloid flocculates, and recycling ceramic membrane filter device reaches removes elemental sulfur and Fe
2+deng impurity; The elemental sulfur that the oxidation existed to solve prior art produces filters thoroughly and Fe
2+ion exists in solution, and the amounts of activated carbon that production is consumed is large, and product purity is not high, is difficult to the problem be up to state standards.
During operation, desulfurization waste liquor enters stills for air blowing by original fluid container by stills for air blowing fresh feed pump, and stills for air blowing, built with a certain amount of catalyzer, are delivered to whizzer and carried out centrifuging to remove the elemental sulfur of oxidising process generation after the oxidation solution cooling after being oxidized; Filtrate enters oxidation solution storage tank, then in oxidation solution storage tank, adds a certain amount of flocculation agent while stirring, adjusts oxidation solution pH value, the oxidation solution standing sedimentation after adjustment 24 hours simultaneously, utilizes adsorption-flocculation effect to make elemental sulfur in oxidation solution and Fe
2+with OH in solution
-the Fe(OH that reaction produces)
2colloid flocculates completely and falls to tank bottom, and supernatant liquor enters adjustment liquid storage tank by transferpump; Oxidation solution after adjustment enters ceramic membrane filter device by ceramic membrane fresh feed pump, to remove elemental sulfur and the Fe(OH of flocculation)
2the impurity such as colloid, and then the liquid after filtering is delivered to decolouring still by being oxidized clear liquid storage tank, add gac and decolour, the solution after decolouring delivers to flame filter press by spiral pump makes decolouring clear liquid be separated with gac; What the clear liquid after decolouring directly entered that evaporating kettle and crystallization kettle carry out evaporative crystallization obtains highly purified ammonium sulfate and ammonium thiocyanate product.
Compared with prior art, the utility model has following beneficial effect:
(1) utilize the adsorption-flocculation effect of flocculation agent, adjust oxidation solution pH value simultaneously, make not to be centrifuged in oxidation solution tiny simple substance sulphur granule and Fe that machine filters out
2+with OH in solution
-the Fe(OH that reaction produces)
2colloid sedimentation is flocculated;
(2) the flocculating settling thing produced is removed by ceramic membrane filter, to reduce elemental sulfur and Fe in oxidation solution
2+content, decrease the consumption of follow-up bleaching workshop section gac, greatly reduce the foreign matter content in solution simultaneously;
(3) oxidation solution is by ceramic membrane filter device, the impurity of elimination small particle size, improves subsequent evaporation crystallized liquid purity, obtains highly purified ammonium sulfate, ammonium thiocyanate and ammonium sulfate product;
(4) steam consumption of desulfurization waste liquor per ton is down to 0.8t by 1.5t before, and the gac consumption of desulfurization waste liquor per ton is down to 1.5kg by 4kg, reduces production cost.
In sum, the utility model reduces production cost, and easy handling has the advantages such as energy-conservation, stable, can significantly improve the purity of product simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of equipment for completing treatment technique of coking desulfurization liquid waste as shown in Figure 1, comprises the original fluid container 1, stills for air blowing 3, whizzer 4, oxidation solution storage tank 5, adjustment liquid storage tank 7, membrane filter appts 9, oxidation clear liquid storage tank 10, decolouring still 12, flame filter press 14, decolouring clear liquid storage tank 15, evaporating kettle 17, sulphur ammonium whizzer 18, ammonium thiocyanate mother liquor storage tank 19, crystallization kettle 20, ammonium thiocyanate whizzer 21, the lean solution storage tank 22 that are connected successively by pipeline; Wherein said oxidation solution storage tank 5 is provided with whipping appts; Between described decolouring still 12 and flame filter press 14, spiral pump 13 is installed.
During operation, desulfurization waste liquor enters stills for air blowing 3 by original fluid container 1 by stills for air blowing fresh feed pump 2, and stills for air blowing 3, built with a certain amount of catalyzer, are delivered to whizzer 4 and carried out centrifuging to remove the elemental sulfur of oxidising process generation after the oxidation solution cooling after being oxidized; Filtrate enters oxidation solution storage tank 5, then in oxidation solution storage tank, adds a certain amount of flocculation agent while stirring, adjusts oxidation solution pH value, the oxidation solution standing sedimentation after adjustment 24 hours simultaneously, utilizes adsorption-flocculation effect to make elemental sulfur in oxidation solution and Fe
2+with OH in solution
-the Fe(OH that reaction produces)
2colloid flocculates completely and falls to tank bottom, and supernatant liquor enters adjustment liquid storage tank 7 by transferpump 6; Oxidation solution after adjustment enters membrane filter appts 9(ceramic membrane filter device by ceramic membrane fresh feed pump 8), to remove elemental sulfur and the Fe(OH of flocculation)
2the impurity such as colloid, and then the liquid after filtering is delivered to decolouring still 12 by being oxidized clear liquid storage tank 10 by decolouring still fresh feed pump 11, add gac to decolour, the solution after decolouring delivers to flame filter press 14 by spiral pump 13 makes decolouring clear liquid be separated with gac; Liquid after decolouring immerses decolouring clear liquid storage tank 15, then evaporating kettle 17 is entered by evaporating kettle liquid-feeding pump 16, then after over cure ammonium centrifuge, solution sends into ammonium thiocyanate mother liquor storage tank 19, that carries out evaporative crystallization through crystallization kettle 20, ammonium thiocyanate whizzer 21 successively again obtains highly purified ammonium sulfate and ammonium thiocyanate product, and liquid sends into lean solution storage tank 22.
Claims (2)
1. a coking desulfurization waste liquor treatment facility, it is characterized in that, comprise connected successively by pipeline original fluid container (1), stills for air blowing (3), whizzer (4), oxidation solution storage tank (5), adjustment liquid storage tank (7), membrane filter appts (9), oxidation clear liquid storage tank (10), decolouring still (12), flame filter press (14), decolouring clear liquid storage tank (15), evaporating kettle (17), sulphur ammonium whizzer (18), ammonium thiocyanate mother liquor storage tank (19), crystallization kettle (20), ammonium thiocyanate whizzer (21), lean solution storage tank (22); Wherein said oxidation solution storage tank (5) is provided with whipping appts; Between described decolouring still (12) and flame filter press (14), spiral pump (13) is installed.
2. coking desulfurization waste liquor treatment facility according to claim 1, is characterized in that, described membrane filter appts (9) is ceramic membrane filter device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520756456.0U CN204999764U (en) | 2015-09-28 | 2015-09-28 | Coking desulfurization liquid water disposal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520756456.0U CN204999764U (en) | 2015-09-28 | 2015-09-28 | Coking desulfurization liquid water disposal equipment |
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| Publication Number | Publication Date |
|---|---|
| CN204999764U true CN204999764U (en) | 2016-01-27 |
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ID=55156661
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|---|---|---|---|
| CN201520756456.0U Active CN204999764U (en) | 2015-09-28 | 2015-09-28 | Coking desulfurization liquid water disposal equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773750A (en) * | 2020-05-28 | 2020-10-16 | 辽宁科技大学 | Non-blast furnace ironmaking ADA desulfurization salt extraction conveying system |
-
2015
- 2015-09-28 CN CN201520756456.0U patent/CN204999764U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773750A (en) * | 2020-05-28 | 2020-10-16 | 辽宁科技大学 | Non-blast furnace ironmaking ADA desulfurization salt extraction conveying system |
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 043400 Xining village, Quwo County, Linfen County, Shanxi City, Shanxi Province Patentee after: Shanxi Changlin Energy Technology Co Ltd Address before: 043400, Shanxi Province, Linfen County, Xining City, Quwo village, South Shanxi Road, 50 meters north Patentee before: SHANXI CHANGLIN ENVIRONMENTAL MACHINERY CO., LTD. |