CN203683110U - Combined device for producing sodium hydrogen sulfite from disulfide waste material - Google Patents
Combined device for producing sodium hydrogen sulfite from disulfide waste material Download PDFInfo
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- CN203683110U CN203683110U CN201420028721.9U CN201420028721U CN203683110U CN 203683110 U CN203683110 U CN 203683110U CN 201420028721 U CN201420028721 U CN 201420028721U CN 203683110 U CN203683110 U CN 203683110U
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- disulphide
- pipe
- absorption tower
- furnace gas
- disulfide
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- 239000002699 waste material Substances 0.000 title claims abstract description 21
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 title claims abstract description 14
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 title claims abstract description 14
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 title abstract 10
- 229940079827 sodium hydrogen sulfite Drugs 0.000 title abstract 2
- 239000007789 gas Substances 0.000 claims abstract description 73
- 238000010521 absorption reaction Methods 0.000 claims abstract description 68
- 239000003513 alkali Substances 0.000 claims abstract description 49
- 239000002918 waste heat Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000003595 mist Substances 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 8
- 239000012071 phase Substances 0.000 claims description 7
- 239000007791 liquid phase Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002440 industrial waste Substances 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000002912 waste gas Substances 0.000 abstract description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract 2
- 238000000746 purification Methods 0.000 abstract 2
- 238000003786 synthesis reaction Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 54
- 230000009102 absorption Effects 0.000 description 52
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 5
- 235000010265 sodium sulphite Nutrition 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 3
- 239000003915 liquefied petroleum gas Substances 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical group CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000003568 thioethers Chemical class 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 description 1
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 description 1
- 241000499436 Brassica rapa subsp. pekinensis Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- MATLTAYVUWQATA-UHFFFAOYSA-M [Na][Fe]Cl Chemical compound [Na][Fe]Cl MATLTAYVUWQATA-UHFFFAOYSA-M 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000008088 food bleaching agent Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
Images
Classifications
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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
-
- 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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
-
- 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
- Y02P20/50—Improvements relating to the production of bulk chemicals
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to a combined device for producing sodium hydrogen sulfite from disulfide waste materials. The device consists of a disulfide purification system and a chemical synthesis system for alkali liquor absorption after incinerating disulfide, wherein the disulfide purification system comprises a disulfide feeding pump, a disulfide re-boiler, a disulfide super-gravity distiller and a filter; the chemical synthesis system comprises an incinerator, a waste heat boiler, a furnace gas heat exchanger, a demister, a three-stage absorption tower and three alkali liquor feeding pumps. The device disclosed by the utility model has the beneficial effects that by adopting the combined device, the problem that the disulfide waste materials generated in the light oil product sweetening alkali washing process are difficult to be treated is solved; the problem of the environmental protection pressure caused by air exhaust after directly incinerating the disulfide waste materials at present is solved; meanwhile, the recycling of the heat energy and the aim of waste to treasure of the industrial waste materials are realized by using sulfur dioxide in a waste heat recovery system and a triple tandem alkali washing absorption tower; moreover, the combined device has the characteristics of simple process, easiness in operation, low investment cost, good waste gas treatment effect, environment friendliness, economic performance and the like.
Description
Technical field
The utility model relates to a kind of combination unit of disulphide waste material production sodium bisulfite.
Background technology
Liquefied petroleum gas (LPG) (being called for short liquefied gas, english abbreviation LPG) is mainly by productions such as refinery catalytic cracking unit, coker, atmospheric and vacuum distillation unit, reformer, light ends units.These liquefied gas, except containing hydrogen sulfide inorganic sulfur, also contain the organic sulfides such as a large amount of mercaptan, thioether, disulphide.Wherein coking liquefied gas sulfur-bearing is higher, and total sulfur content is generally more than 20000mg/m3, and after amine wash-out hydrogen sulfide, its mercaptans content is generally still more than 3000-5000 mg/m3, more than high person reaches 10000 mg/m3.Other device produces liquefied gas total sulfur generally in 5000 mg/m3 left and right, and after amine wash-out hydrogen sulfide, its mercaptans content is generally in 300-800 mg/m3 scope.The mercaptan removal workshop section of refinery's light-end products processing both at home and abroad at present, the general sodium hydroxide alkali cleaning technique that all adopts is removed the small molecules mercaptan in light-end products, alkali lye deoxidation containing sodium mercaptides after alkali cleaning is regenerated, sodium mercaptides oxidation generates disulphide, and its main component is Methyl disulfide and diethyl two sulphur.Mostly be weak yellow liquid, have similar rotten Chinese cabbage smell; Water-soluble hardly, can be dissolved in nearly all organic solvent with any ratio at normal temperatures, and there is volatility, corrodibility and nauseating bad odor, thereby environment is caused to great pollution.The technology of domestic main employing is at present that the waste material that these are contained to alkaline residue directly send after incinerator burning, and tail gas directly discharges atmosphere, causes serious environmental pollution.
Sodium sulfite solution can be used as the SYNTHETIC OPTICAL WHITNER of textile industry cotton fabric, and the reductive agent in the industry such as dyestuff, papermaking, process hides, chemosynthesis, as the reductive agent in acrylic fiber production process.Also can be used for producing the industries such as medicine intermediate, photographic developer, food bleaching agent, sanitas, antioxidant.The manufacture method compared of producing at present sodium sulfite solution is single, and traditional industry production method is by the aqueous sodium carbonate that makes soluble in water industrial sodium carbonate, toward wherein passing into sulfurous gas to certain pH value, makes product.Owing to containing sodium-chlor, iron and other mechanical impuritys in industrial sodium carbonate, and traditional industry method lacks good exquisite means, therefore be difficult to make purity sodium sulfite solution.The needs that only can meet general industry purposes with the sodium sulfite solution that current commercial run is produced, some department is such as foodstuffs industry requires to use high-purity solution of sodium bisulfite, and this simple method just cannot meet.Along with the aggravation of environment in recent years pollution, topsoil is particularly outstanding, especially the normal haze phenomenon occurring in recent years, all directly to discharge atmosphere relevant with chemical industry tail gas, and country is more and more higher to the requirement of sulfide emission standard, the method that after a lot of chemical industry units have all adopted and first burned, alkali lye is washed, when having reduced emission standard, can also produce sodium bisulfite, can be used as a kind of important industrial chemicals, realize and having turned waste into wealth.
Utility model content
The purpose of this utility model is to provide one, to overcome currently available technology above shortcomings.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of disulphide waste material is produced the combination unit of sodium bisulfite, comprise described in disulphide fresh feed pump that disulphide fresh feed pump is provided with disulphide feed-pipe, described disulphide fresh feed pump is connected with respectively disulphide hypergravity distiller and disulphide reboiler by hypergravity distiller liquid phase feeding pipe and disulphide reboiler feed-pipe, described disulphide hypergravity distiller is connected by hypergravity distiller gas-phase feed pipe with disulphide reboiler, described disulphide reboiler bottom is provided with alkaline residue vent pipe two, described disulphide hypergravity distiller bottom is provided with alkaline residue vent pipe one, the top of described disulphide hypergravity distiller is connected with filter by disulphide discharge nozzle, the bottom of described filter is provided with solid impurity vent pipe, and described filter is connected with incinerator by incinerator feed-pipe, described incinerator is connected with waste heat boiler by furnace gas export pipe one, described waste heat boiler is connected with furnace gas interchanger by furnace gas export pipe two, described furnace gas interchanger is connected with mist eliminator by furnace gas export pipe three, and described demister bottom is provided with acid solution vent pipe, described mist eliminator top is connected with alkali liquor absorption tower by furnace gas export Guan Si, and described alkali liquor absorption tower is connected with alkali lye fresh feed pump by alkali lye feed-pipe, and described alkali liquor absorption tower is provided with furnace gas export pipe and discharge nozzle.
Further, the top of described disulphide reboiler is provided with steam inlet pipe, and described disulphide reboiler bottom is provided with steam outlet pipe.
Further, described alkali lye is washed absorption tower and is comprised the first step absorption tower, absorption tower, the second stage and the third stage absorption tower that are connected in series by furnace gas export pipe order, and the furnace gas export pipe on described third stage absorption tower is furnace gas blow-down pipe; The discharge nozzle on described first step absorption tower is connected with the alkali lye fresh feed pump on absorption tower, the second stage, and the discharge nozzle on absorption tower, the described second stage is connected with the alkali lye fresh feed pump on third stage absorption tower.
Further, described waste heat boiler top is provided with waste heat boiler steam outlet pipe, and described waste heat boiler bottom is provided with Hot Water Feeding pipe.
Further, described furnace gas interchanger bottom is provided with cold water inlet tube, and described furnace gas interchanger top is provided with hot water outlet pipe.
The beneficial effects of the utility model are: adopt combination unit, to solve China Petrochemical Industry, the difficult problem of disulphide waste disposal that refinery's mercapfining light oil alkali washing process such as PetroChina Company Limited. produce, substitute existing most refinery disulphide waste material and directly burned the rear emptying environmental protection pressure causing, utilize residual neat recovering system and three grades of series connection alkali cleaning absorption tower SO 2 in waste gas simultaneously, and realize the recycling of heat energy, realize again turning waste into wealth of industrial waste, and it is simple to have technique, easy to operate, cost of investment is low, off gas treatment is effective, the features such as environmental protection and economy.
Accompanying drawing explanation
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the structural representation that the disulphide waste material described in the utility model embodiment is produced the combination unit of sodium bisulfite.
In figure:
1, disulphide feed-pipe; 2, disulphide fresh feed pump; 3, hypergravity distiller liquid phase feeding pipe; 4, disulphide reboiler feed-pipe; 5, disulphide hypergravity distiller; 6, disulphide discharge nozzle; 7, alkaline residue vent pipe one; 8, hypergravity distiller gas-phase feed pipe; 9, alkaline residue vent pipe two; 10, steam outlet pipe; 11, disulphide reboiler; 12, steam inlet pipe; 13, solid impurity vent pipe; 14, filter; 15, incinerator feed-pipe; 16, incinerator; 17, furnace gas export pipe one; 18, Hot Water Feeding pipe; 19, waste heat boiler steam outlet pipe; 20, waste heat boiler; 21, furnace gas export pipe two; 22, furnace gas export pipe three; 23, cold water inlet tube; 24, hot water outlet pipe; 25, furnace gas interchanger; 26, mist eliminator; 27, furnace gas export Guan Si; 28, alkali liquor absorption tower; 2801, first step absorption tower; 2802, absorption tower, the second stage; 2803, third stage absorption tower; 29, alkali lye feed-pipe; 30, alkali lye fresh feed pump; 31, furnace gas export pipe; 32, discharge nozzle.
Embodiment
As shown in Figure 1, a kind of disulphide waste material described in the utility model embodiment is produced the combination unit of sodium bisulfite, comprise disulphide fresh feed pump 2, described disulphide fresh feed pump 2 is provided with disulphide feed-pipe 1, described disulphide fresh feed pump 2 is connected with respectively disulphide hypergravity distiller 5 and disulphide reboiler 11 by hypergravity distiller liquid phase feeding pipe 3 and disulphide reboiler feed-pipe 4, described disulphide hypergravity distiller 5 is connected by hypergravity distiller gas-phase feed pipe 8 with disulphide reboiler 11, described disulphide reboiler 11 bottoms are provided with alkaline residue vent pipe 29, described disulphide hypergravity distiller 5 bottoms are provided with alkaline residue vent pipe 1, the top of described disulphide hypergravity distiller 5 is connected with filter 14 by disulphide discharge nozzle 6, the bottom of described filter 14 is provided with solid impurity vent pipe 13, and described filter 14 is connected with incinerator 16 by incinerator feed-pipe 15, described incinerator 16 is connected with waste heat boiler 20 by furnace gas export pipe 1, described waste heat boiler 20 is connected with furnace gas interchanger 25 by furnace gas export pipe 2 21, described furnace gas interchanger 25 is connected with mist eliminator 26 by furnace gas export pipe 3 22, and described mist eliminator 26 bottoms are provided with acid solution vent pipe, described mist eliminator 26 tops are connected with alkali liquor absorption tower 28 by furnace gas export pipe 4 27, and described alkali liquor absorption tower 28 is connected with alkali lye fresh feed pump 30 by alkali lye feed-pipe 29, and described alkali liquor absorption tower 28 is provided with furnace gas export pipe 31 and discharge nozzle 32.
Described alkali liquor absorption tower 28 comprises first step absorption tower 2801, absorption tower, the second stage 2802 and third stage absorption tower 2803, described first step absorption tower 2801, absorption tower, the second stage 2802 and third stage absorption tower 2803 threes are connected in series by furnace gas export pipe 31 orders, and the furnace gas export pipe 31 on described third stage absorption tower 2803 is furnace gas blow-down pipe; The discharge nozzle 32 on described first step absorption tower 2801 is connected with the alkali lye fresh feed pump 30 on absorption tower, the second stage 2802, and the discharge nozzle 32 on absorption tower, the described second stage 2802 is connected with the alkali lye fresh feed pump 30 on third stage absorption tower 2803.
The top of described disulphide reboiler 11 is provided with steam inlet pipe 12, and described disulphide reboiler 11 bottoms are provided with steam outlet pipe 10.Described waste heat boiler 20 tops are provided with waste heat boiler steam outlet pipe 19, and described waste heat boiler 20 bottoms are provided with Hot Water Feeding pipe 18.Described furnace gas interchanger 25 bottoms are provided with cold water inlet tube 23, and described furnace gas interchanger 25 tops are provided with hot water outlet pipe 24.
The principle of work of the utility model embodiment comprises the following steps:
1) respectively from disulphide reboiler feed-pipe 4 and hypergravity distiller liquid phase feeding pipe 3 enter into disulphide reboiler 4 and disulphide hypergravity distiller 5 by disulphide feed-pipe 1 by 2 points of two-way of disulphide fresh feed pump from the disulphide waste material of alkali liquor oxidized system.
2) disulphide reboiler 4 is to be gone out by steam outlet pipe 10 after steam enters by steam inlet pipe 12 again, realizes principle of heating.Liquid phase disulphide thermal conversion in disulphide reboiler 4 becomes gas phase, entered into by hypergravity distiller gas-phase feed pipe 8, after gas-liquid two-phase fully contacts, purify after highly purified disulphide by disulphide discharge nozzle 6 to filter 14, the a large amount of alkaline residue Impurity depositions that contain in disulphide are in disulphide hypergravity distiller 5 bottoms, by alkaline residue purger one 7 removal systems.
3) disulphide further fine filtering in filter 14, removes after its solid small particles impurity of carrying secretly, burns through incinerator feed-pipe 15 to incinerator 16.Small-particle is linked up impurity after filter 14 bottom depositions, through solid impurity purger 13 removal systems.
4) after disulphide fully burns in incinerator, change into sulfurous gas.High temperature sulfurous gas furnace gas is entered into after waste heat boiler 20 heat exchange by furnace gas export pipe 1, through furnace gas export pipe 2 21 to furnace gas interchanger 25 heat exchange for the second time.The heat of waste heat boiler is intake and is absorbed the rear steam that produces by Hot Water Feeding pipe 18, and steam to other workshop section's systems, has been realized the saving utilization of energy consumption by waste heat boiler steam outlet pipe 19.
5) through the furnace gas of furnace gas interchanger heat exchange for the second time, temperature obviously reduces, and to mist eliminator 26, removes the sulfuric acid that wherein reaction of small part steam and disulphide generates through furnace gas export pipe 3 21.Furnace gas after demist through mist eliminator 26 tops by furnace gas export pipe 4 27 to 2801 bottoms, first step absorption tower.
6) 30% sodium hydroxide solution is entered by alkali lye feed-pipe 29 to 2801 tops, first step absorption tower through alkali lye fresh feed pump 30 by alkali lye feed-pipe 29, the furnace gas of coming in 2801 bottoms, first step absorption tower is reverse to be contacted, fully mixes, reacted alkali lye by discharge nozzle 32 from 2801 bottoms, first step absorption tower to workshop section, the furnace gas after absorption is workshop section after 2801 tops, first step absorption tower are expelled to.
7) entered by alkali lye feed-pipe 29 to 2802 tops, absorption tower, the second stage through alkali lye fresh feed pump 30 by the absorption alkali lye of the discharge nozzle 29 on first step absorption tower, contact, fully mix with the furnace gas of out coming in 2802 bottoms, absorption tower, the second stage through furnace gas export pipe 31 from 2801 tops, first step absorption tower is reverse, reacted alkali lye by discharge nozzle 29 from 2802 bottoms, absorption tower, the second stage to workshop section, secondary absorb after furnace gas workshop section after 2802 tops, absorption tower, the second stage are expelled to.
8) entered by alkali lye feed-pipe 029 to 2803 tops, third stage absorption tower through alkali lye fresh feed pump 30 by the absorption alkali lye of the discharge nozzle 29 on absorption tower, the second stage, contact, fully mix with the furnace gas of out coming in 2803 bottoms, third stage absorption tower through furnace gas export pipe 31 from 2802 tops, absorption tower, the second stage is reverse, sodium sulfite solution after absorption reaction generates is by discharge nozzle 29 removal systems, and Zhi Hou workshop section stores.Furnace gas after three grades of absorptions is directly discharged in atmosphere through furnace gas export pipe 31 by 2803 tops, third stage absorption tower, and in tail gas, sulphur content reaches state environmental emissioning standard.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection domain of the present utility model.
Claims (5)
1. the combination unit of a disulphide waste material production sodium bisulfite, comprise that disulphide fresh feed pump (2) is characterized in that: described disulphide fresh feed pump (2) is provided with disulphide feed-pipe (1), described disulphide fresh feed pump (2) is connected with respectively disulphide hypergravity distiller (5) and disulphide reboiler (11) by hypergravity distiller liquid phase feeding pipe (3) and disulphide reboiler feed-pipe (4), described disulphide hypergravity distiller (5) is connected by hypergravity distiller gas-phase feed pipe (8) with disulphide reboiler (11), described disulphide reboiler (11) bottom is provided with alkaline residue vent pipe two (9), described disulphide hypergravity distiller (5) bottom is provided with alkaline residue vent pipe one (7), the top of described disulphide hypergravity distiller (5) is connected with filter (14) by disulphide discharge nozzle (6), the bottom of described filter (14) is provided with solid impurity vent pipe (13), and described filter (14) is connected with incinerator (16) by incinerator feed-pipe (15), described incinerator (16) is connected with waste heat boiler (20) by furnace gas export pipe one (17), described waste heat boiler (20) is connected with furnace gas interchanger (25) by furnace gas export pipe two (21), described furnace gas interchanger (25) is connected with mist eliminator (26) by furnace gas export pipe three (22), and described mist eliminator (26) bottom is provided with acid solution vent pipe, described mist eliminator (26) top is connected with alkali liquor absorption tower (28) by furnace gas export Guan Si (27), described alkali liquor absorption tower (28) is connected with alkali lye fresh feed pump (30) by alkali lye feed-pipe (29), and described alkali liquor absorption tower (28) is provided with furnace gas export pipe (31) and discharge nozzle (32).
2. a kind of disulphide waste material according to claim 1 is produced the combination unit of sodium bisulfite, it is characterized in that: the top of described disulphide reboiler (11) is provided with steam inlet pipe (12), described disulphide reboiler (11) bottom is provided with steam outlet pipe (10).
3. a kind of disulphide waste material according to claim 2 is produced the combination unit of sodium bisulfite, it is characterized in that: described alkali lye is washed absorption tower (28) and comprised the first step absorption tower (2801), absorption tower, the second stage (2802) and third stage absorption tower (2803) that are connected in series by furnace gas export pipe (31) order, and the furnace gas export pipe (31) on described third stage absorption tower (2803) is furnace gas blow-down pipe; The discharge nozzle (32) on described first step absorption tower (2801) is connected with the alkali lye fresh feed pump (30) of absorption tower, the second stage (2802), and the discharge nozzle (32) on absorption tower, the described second stage (2802) is connected with the alkali lye fresh feed pump (30) of third stage absorption tower (2803).
4. a kind of disulphide waste material according to claim 3 is produced the combination unit of sodium bisulfite, it is characterized in that: described waste heat boiler (20) top is provided with waste heat boiler steam outlet pipe (19), described waste heat boiler (20) bottom is provided with Hot Water Feeding pipe (18).
5. a kind of disulphide waste material according to claim 4 is produced the combination unit of sodium bisulfite, it is characterized in that: described furnace gas interchanger (25) bottom is provided with cold water inlet tube (23), and described furnace gas interchanger (25) top is provided with hot water outlet pipe (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028721.9U CN203683110U (en) | 2014-01-17 | 2014-01-17 | Combined device for producing sodium hydrogen sulfite from disulfide waste material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028721.9U CN203683110U (en) | 2014-01-17 | 2014-01-17 | Combined device for producing sodium hydrogen sulfite from disulfide waste material |
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| CN203683110U true CN203683110U (en) | 2014-07-02 |
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| CN201420028721.9U Expired - Lifetime CN203683110U (en) | 2014-01-17 | 2014-01-17 | Combined device for producing sodium hydrogen sulfite from disulfide waste material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745086A (en) * | 2016-12-30 | 2017-05-31 | 耒阳市焱鑫有色金属有限公司 | One kind Ca (OH)2And SO2Multi-stage countercurrent continuously reduces Na2SO4Generation Na2SO3Reaction tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745086A (en) * | 2016-12-30 | 2017-05-31 | 耒阳市焱鑫有色金属有限公司 | One kind Ca (OH)2And SO2Multi-stage countercurrent continuously reduces Na2SO4Generation Na2SO3Reaction tower |
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