CN106390497B - Akali sulphide two-effect evaporation process system - Google Patents
Akali sulphide two-effect evaporation process system Download PDFInfo
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- CN106390497B CN106390497B CN201611058802.3A CN201611058802A CN106390497B CN 106390497 B CN106390497 B CN 106390497B CN 201611058802 A CN201611058802 A CN 201611058802A CN 106390497 B CN106390497 B CN 106390497B
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- 238000001704 evaporation Methods 0.000 title claims abstract description 50
- 230000008020 evaporation Effects 0.000 title claims abstract description 50
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000008569 process Effects 0.000 title claims abstract description 13
- 230000000694 effects Effects 0.000 claims abstract description 140
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000009833 condensation Methods 0.000 claims abstract description 7
- 230000005494 condensation Effects 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 26
- 238000009834 vaporization Methods 0.000 claims description 17
- 230000008016 vaporization Effects 0.000 claims description 17
- 239000000498 cooling water Substances 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 13
- 230000008676 import Effects 0.000 claims description 11
- 239000003513 alkali Substances 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 5
- 239000003550 marker Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000019086 sulfide ion homeostasis Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 17
- 239000007789 gas Substances 0.000 description 8
- 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 7
- 229910052708 sodium Inorganic materials 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- 239000003245 coal Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 3
- 235000019345 sodium thiosulphate Nutrition 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000010446 mirabilite Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical group 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0058—Use of waste energy from other processes or sources, e.g. combustion gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0082—Regulation; Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/22—Alkali metal sulfides or polysulfides
- C01B17/38—Dehydration
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a kind of akali sulphide two-effect evaporation process systems, including steam line, material route and condensation water line.Akali sulphide two-effect evaporation has started the new model of akali sulphide production evaporization process, it is evaporated with two effect tubulation evaporations instead of the evaporation of single-action tubulation and heat-conducting oil furnace, a large amount of steam (two-effect evaporation ton alkaline consumption steam 1.3t) is saved, production cost is reduced, improves the competitiveness of product in market.In addition, having removed two chimneys of heat-conducting oil furnace, reduces atmosphere pollution, improve surrounding enviroment, meet environmental requirement.
Description
Technical field
The invention belongs to the preparation field of chemical products, specially a kind of akali sulphide two-effect evaporation process system.
Background technique
Vulcanized sodium is also known as smelly alkali, smelly soda, yellow alkali, akali sulphide.Vulcanized sodium is inorganic compound, and pure vulcanized sodium is colourless knot
Crystalline flour end, moisture absorption is strong, soluble easily in water.Aqueous solution is reacted in strong basicity, be will cause and is burnt when touching skin and hair, therefore is vulcanized
Sodium is commonly called as akali sulphide.Sodium sulfide solution is oxidized to sodium thiosulfate, sodium sulfite, sodium sulphate and more in which will be slow in air
Vulcanized sodium.Since the formation speed of sodium thiosulfate is very fast, so the primary product of oxidation is sodium thiosulfate.Vulcanized sodium is in sky
It is deliquesced in gas, and carbonates and go bad, constantly release hydrogen sulfide gas.Industrial sodium sulfide is because being in pink containing its color of impurity
Color, brownish red, khaki.Specific gravity, fusing point, boiling point, it is also different because of impurity effect.
Akali sulphide is one of the most basic industrial chemicals to involve the interests of the state and the people.Whole world akali sulphide production capacity is 150~200
Ten thousand tons/year, wherein 80% or more production capacity is in China, and the production capacity of the country 90% uses coal (carbon) high temperature reduction mirabilite method, the method
Production akali sulphide is all made of the evaporation of single-action tubulation or conduction oil thin film evaporation substantially at present.Nanfeng Chemical Group Co., Ltd.
5.5 ten thousand tons/year of barium salt branch company akali sulphide evaporative capacity, wherein 40,000 tons/year of heat-conducting oil furnace thin film evaporator production capacity, single-action arrange
1.5 ten thousand tons/year of pipe evaporator production capacity.
Akali sulphide production method, using coal (carbon) high temperature reduction mirabilite method.Raw material nitre and feed coal are mixed in a certain ratio
It is added in interval converter, is roasted at 850~1150 DEG C, and obtain thick alkali base, then dissolved, clarify obtained 23% or so sulphur
Change sodium solution, is squeezed into after two-effect evaporation device is concentrated into 60.5~61% with pump, be sent to the but formula pelleter film-making of roller internal water cooling, most
Finished product is obtained by screening, packaging.
The evaporation of single-action tubulation and heat-conducting oil furnace thin film evaporation mode that akali sulphide evaporization process is widely used at present, are mainly deposited
The shortcomings that or problem it is as follows:
Akali sulphide single-action tubulation evaporation profiles: steam consumption quantity is big (ton alkali steam consumption 2.5t), intermittently operated, product quality
It is unstable.
Akali sulphide heat-conducting oil furnace thin film evaporation mode: 1. need to be equipped with heat conducting oil boiler, energy consumption height (ton alkaline consumption coal
0.35t), seriously polluted, environment protection treating investment is big, and enterprise, which faces, shuts down risk；2. the renewal cost of conduction oil is high；3. discharging is
Intermittently operated, unstable quality；4. equipment operating cost is high；5. operator is more, worker's load weight.
Summary of the invention
It is an object of the present invention to provide a kind of novel akali sulphide two-effect evaporation process systems, to overcome prior art problem
Deficiency.
The present invention is achieved by the following technical scheme:
A kind of akali sulphide two-effect evaporation process system, including steam line, material route and condensation water line.
In steam line, from dividing the life steam of drum to enter I effect evaporator, the I effect evaporator passes through the I secondary steaming of effect
Vapor pipeline is connected with II effect evaporator, and the I effect secondary steam pipe road installation demister, the demister connects recycle of alkali liquor
Tank；The II effect evaporator is connected by II effect secondary steam pipeline with level-one mixing condenser, the level-one mixing condenser
It is connected by steam jet pump with second level mixing condenser, the second level mixing condenser passes through fixed gas pipeline and Water-ring vacuum
Mercury vapour body import is connected, the water ring vacuum pump steam outlet connection evacuated tube；The circulating cooling of the level-one mixing condenser
The circulating cooling water out of water out and second level mixing condenser is separately connected water sealed tank；The water sealed tank connects cooling tower, institute
It states cooling tower and connects the circulating cooling water inlet of level-one mixing condenser and the circulation of second level mixing condenser by cooling water pump
Cooling water inlet.
In material route, material is sent into I effect evaporator through feed pipe by feed pump, and the I effect evaporator passes through guide
Pipeline is connected with II effect evaporator；The vaporization chamber bottom and heating room bottom of the I effect evaporator are connected by I effect circulation axial-flow pump
It connects, the vaporization chamber bottom of the II effect evaporator is connected with heating room bottom by II effect circulation axial-flow pump；The II effect evaporation
Tank is connected by marker pipe with finished product heating tank.
It condenses in water line, the condensed water that the I effect evaporator and II effect evaporator generate passes through I, II effect condensation respectively
Water pipeline enter I effect balance bucket and II effect balance bucket, it is described I effect balance bucket and II effect balance bucket respectively connect I effect flash evaporation tank and
II effect flash evaporation tank.
The I effect flash evaporation tank and II effect flash evaporation tank are conveyed by I, second condensed water transfer pipeline through respective I effect condensed water
Pump and second condensed water delivery pump are connected with heating coil, the discharge system after exchanging heat.
System work process: when vapo(u)rization system is run, first start feed pump to I effect, II effect evaporator and be fed into higher liquid
When position, stop feed pump.Meanwhile the steam from waste heat boiler being also sent into the heating room of I effect evaporator.It is evaporated to middle liquid level
When, it is again started up feed pump, is adjusted to automatic feed.After vulcanization lye is evaporated to a certain concentration, enter II by guide pipeline
Evaporator is imitated, the secondary steam of I effect also enters the heating room of II effect evaporator after demister foam removal.II effect evaporator after
Continue after being evaporated to finished product concentration of lye, is discharged into finished product heating tank, then through discharge tank, send to film-making with discharging pump.II effect it is secondary
Steam enters level-one mixing condenser, passes through steam jet pump with the fixed gas of circulating cooling water condensation, level-one mixing condenser
Second level mixing condenser is introduced, the fixed gas of second level mixing condenser is discharged into atmosphere by water ring vacuum pump.The mixing of one second level is cold
Condenser recirculated cooling water is recycled to fluid-tight pond, then after cooling tower cooler.The condensed water of I effect evaporator heating room enters I
Condensate water pot is imitated, then after flash evaporation tank shwoot, is sent out with I effect condensate pump.The condensed water of II effect evaporator heating room enters II
Condensate water pot is imitated, then after flash evaporation tank shwoot, is pumped out with second condensed water.
Present system has the advantages that
1) akali sulphide two-effect evaporation started akali sulphide production evaporization process new model, with two effect tubulations evaporation instead of
The evaporation of single-action tubulation and heat-conducting oil furnace evaporation, save a large amount of steam (two-effect evaporation ton alkaline consumption steam 1.3t), reduce production
Cost improves the competitiveness of product in market.In addition, having removed two chimneys of heat-conducting oil furnace, reduces atmosphere pollution, change
It has been apt to surrounding enviroment, has met environmental requirement.
2) akali sulphide two-effect evaporation can using automatically control, realize that repeatedly kicking into for feed liquid connects, ensure that production process and
The stability of product quality reduces worker's work load.It is embodied as follows: the 1. chain charging automatic valve of I effect liquid level and charging
Pump, the II effect chain guide automatic valve of liquid level；2. discharging quality is controlled by discharging automatic valve；3. I effect, second condensed water pump be chain I,
II effect flash evaporation tank liquid level；4. all pumps of process realize two places control；5. important equipment facility conduct monitoring at all levels.
3) afterheat steam that akali sulphide two-effect evaporation system is generated using akali sulphide roasting realizes steaming without coal for akali sulphide
Hair, the benefit that waste heat boiler is transformed have fallen on crucial point.
Detailed description of the invention
Fig. 1 shows akali sulphide two-effect evaporation process system schematic diagrames.
In figure, 1- feed pump, 2- I imitates evaporator, 3- recycle of alkali liquor tank, 4- demister, and 5- II imitates evaporator, and 6- level-one is mixed
Close drainer, 7- steam jet pump, 8- second level mixing condenser, 9- water ring vacuum pump, 10- cooling water pump, 11- cooling tower, 12-
Water sealed tank, 13- discharging pump, 14- heating tank, 15- II imitate circulation axial-flow pump, the effect balance bucket of 16- II, II flash evaporation tank of 17-, 18- II
Condensed water delivery pump is imitated, 19- I imitates circulation axial-flow pump, the effect balance bucket of 20- I, and 21- I imitates flash evaporation tank, and 22- I imitates condensed water delivery pump.
Specific embodiment
Specific embodiments of the present invention are described in detail with reference to the accompanying drawing.
Akali sulphide production imitates tubulation evaporation profiles, i.e., a kind of akali sulphide two-effect evaporation technique system using outer circulation tubular type two
System, including steam line, material route and condensation water line three parts.
Steam line:
As shown in Figure 1, the I effect evaporator 2 is secondary by I effect from dividing the life steam of drum to enter I effect evaporator 2
Steam pipework is connected with II effect evaporator 5, i.e., the input end of I effect secondary steam pipeline and phase at the top of the vaporization chamber of I effect evaporator 2
Even, the outlet end of I effect secondary steam pipeline is connected with the heating ceiling portion of II effect evaporator 5.I effect secondary steam pipeline, which is equipped with, to be removed
Foam device 4, demister 4 are connected to I effect secondary steam pipeline close to the vaporization chamber side of I effect evaporator 2, and I effect of demister 4 is secondary
Steam inlet is connected with I effect 2 vaporization chamber of evaporator, the I effect secondary steam outlet and the heating room of II effect evaporator 5 of demister 4
It is connected.Demister 4 rinses lye and is connected to 3 top of recycle of alkali liquor tank.
As shown in Figure 1, II effect evaporator 5 is connected by II effect secondary steam pipeline with level-one mixing condenser 6；I.e. II effect
Secondary steam pipeline import is connected at the top of the vaporization chamber of II effect evaporator 5, and II effect secondary steam tube outlet is connected to level-one
The top center pipe of mixing condenser 6.
As shown in Figure 1,6 device of level-one condensation by mixing is connected by steam jet pump 7 with second level mixing condenser 8；That is steam
The fixed gas import of jet pump 7 is connected to 6 top of level-one mixing condenser, and the fixed gas outlet of steam jet pump 7 is connected to two
Grade mixing condenser 8.Steam jet pump power, which comes from, divides drum.
As shown in Figure 1, second level mixing condenser 8 is connected by fixed gas pipeline with 9 steam import of water ring vacuum pump；That is water
9 steam import of ring vacuum pump is connected to 8 top of second level mixing condenser, 9 steam of water ring vacuum pump outlet connection evacuated tube.
As shown in Figure 1, level-one mixing condenser 6 and second level mixing condenser 8 are equipped with recirculated cooling water.Recirculated cooling water comes
From 11 pond of cooling tower, recirculated cooling water cooling water pump 10 is delivered to level-one mixing condenser 6 and second level mixing condenser 8 pushes up
Behind portion, with II effect secondary steam heat exchange, water sealed tank 12 is flowed out to from bottom, water conservancy difference in height flows back to cooling certainly in water sealed tank 12
11 pond of tower.
Material route:
As shown in Figure 1, vulcanization alkali dense halogen is sent into I effect evaporator 2 via feed pipe with feed pump 1 by dense halogen head tank, into
Expects pipe import is to pull pipe down, and feed pipe outlet is connected on I effect evaporator, 2 vaporization chamber liquid level.
As shown in Figure 1, I effect evaporator 2 is connected by guide pipeline with II effect evaporator 5；I.e. the import of guide pipeline connects
Under I effect 2 vaporization chamber liquid level of evaporator at about 3 meters, guide tube outlet (II effect import) is connected to II effect evaporator, 5 vaporization chamber
On liquid level.
As shown in Figure 1, I effect evaporator 2 and II effect evaporator 5 are respectively equipped with circulation axial-flow pump, circulation axial-flow pump is horizontal.
The vaporization chamber bottom and heating room bottom of I effect evaporator 2 are connected by I effect circulation axial-flow pump 19, the vaporization chamber of II effect evaporator 5
Bottom and heating room bottom are connected by II effect circulation axial-flow pump 15；Circulation axial-flow pump uses variable frequency starting.
As shown in Figure 1, the feeding pipe of feed pump 1 is equipped with automatic feed valve and manual inlet valve.Guide pipeline is imitated from I
Evaporator 2 to II imitates evaporator 5 and is successively arranged the manual guide valve of I effect, automatic guide valve, the II manual guide valve of effect.
As shown in Figure 1, II effect evaporator 5 is connected by marker pipe with finished product heating tank 14, it is sent into after finished product is heated
Subsequent processing.Drainage conduit import is connected to II effect evaporator, 5 vaporization chamber lower part circulation pipe, and drainage conduit outlet is connected to finished product heating
14 top of tank.Drainage conduit is equipped with automatic discharge valve and manual blow-off valve.
Condense water line:
As shown in Figure 1, the condensed water that I effect evaporator 2 and II effect evaporator 5 generate passes through I, second condensed water pipeline respectively
Into I effect balance bucket 20 and II effect balance bucket 16, after arriving certain liquid level, I effect flash evaporation tank 21 of indentation and II effect flash evaporation tank 17.I effect
Flash evaporation tank 21 is also connected by pipeline with the heating room of II effect evaporator 5.
I effect flash evaporation tank 21 and II effect flash evaporation tank 17 are defeated through respective I effect condensed water by I, second condensed water transfer pipeline
Pump 22 and second condensed water delivery pump 18 is sent to be connected with heating coil；I.e. I, second condensed water conveying pump inlet is connected to I, II effect
Flash evaporation tank lower part, I, second condensed water conveying pump discharge be connected to heating coil, discharge system after heated coil heat exchange.Ⅰ,Ⅱ
Condensed water delivery pump is imitated using automatically controlling, the start and stop of pump are chain with corresponding flash evaporation tank liquid level respectively.
When it is implemented,
1, vapo(u)rization system is evaporated using forward feed, the steam pressure of I effect evaporator do not need it is too high (0.4~
0.6MPa), the afterheat steam that akali sulphide roasting converter generates can satisfy technique requirement, about 30 yuan/t of afterheat steam cost.
2, evaporator uses inverse circulation external-heat forced circulation, has velocity in pipes height, augmentation of heat transfer, slows down in heating tube
With tank skin fouling in vaporization chamber, production intensity is larger, residence time of material is long, reduces material short circuit, improve effective heat transfer temperature difference,
The features such as circulating pump eddy current loss is small, circulation resistance is low.
3, circulation axial-flow pump: being pumped using horizontal circulation, variable frequency starting and adjusting, is suitable for flow lift, sealing effect
Well, the features such as power consumption is low, the service life is long and applicability is good.
4, there is the high-efficiency vacuum system formed using mixing condenser, steam jet pump and water ring pump equipment persistently to transport
The features such as row time is long, easy to maintenance, vacuum degree is high, vacuum degree is up to 0.093kPa.
5, heating tape is added in II effect evaporator Liquid level section, reduces tank skin fouling risk.
6, charging pump discharge is connected on I effect evaporator vaporization chamber liquid level.When avoiding charging failure of pump, check defective valve,
Lye flows backward to head tank in evaporator.
7, passage import is connected to I effect evaporator and operates normally under liquid level at about 1~2m, and guide pipeline outlet is connected to
II effect evaporator operates normally under liquid level at about 1~2m, and guide piping inlet is higher than outlet.Shorten guide pipeline, reduces fiber crops
It is stifled, equipment seismism caused by I, II effect (about 40 DEG C) generation bumpings of feed liquid excessive temperature differentials is eliminated, operational danger is reduced.
8, sample tap is equipped in guide pipeline.Valve damage or leakage are reduced, lye or flash-off steam ejection with pressure cause
The risk of accident.
9, I effect, II, which are imitated, adds DN150 feed inlet on evaporator vaporization chamber liquid level, when so as to evaporator slack tank, saves charging
Time.
10, I effect, II effect evaporator cleaning of evaporator water use the recirculated cooling water of vacuum system, and wash water is directly by recirculated cooling water
Pump conveying, saves cleaning of evaporator flooding time.
11, I effect, the II effect horizontal and vertical pipeline section of evaporator circulation pipe add expansion joint, and lower support mitigates thermal expansion pair
Axial-flow pump normal operation has an impact.
12, circulating cooling coolant-temperature gage is not high (20~30 DEG C), can satisfy glass steel material requirement.Therefore cooling tower and circulation
Cooling water pipeline is all made of glass steel material, and anti-corrosion effect further strengthens.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although ginseng
It is described in detail according to the embodiment of the present invention, those skilled in the art should understand that, to technical solution of the present invention
It is modified or replaced equivalently, without departure from the spirit and scope of technical solution of the present invention, claim should all be covered
In protection scope.
Claims (1)
1. a kind of akali sulphide two-effect evaporation process system, including steam line, material route and condensation water line；Its feature exists
In:
In steam line, from dividing the life steam of drum to enter I effect evaporator (2), I effect evaporator (2) passes through I effect two
Secondary steam pipework is connected with II effect evaporator (5), I effect secondary steam pipe road installation demister (4), the demister
(4) recycle of alkali liquor tank (3) are connected；II effect evaporator (5) passes through II effect secondary steam pipeline and level-one mixing condenser (6)
It is connected, the level-one mixing condenser (6) is connected by steam jet pump (7) with second level mixing condenser (8), and the second level is mixed
It closes condenser (8) to be connected by fixed gas pipeline with water ring vacuum pump (9) steam import, water ring vacuum pump (9) steam goes out
Mouth connection evacuated tube；The circulating cooling water out of the level-one mixing condenser (6) and the circulation of second level mixing condenser (8) are cold
But water out is separately connected water sealed tank (12)；The water sealed tank (12) connects cooling tower (11), and the cooling tower (11) passes through cold
But the circulating cooling of the circulating cooling water inlet and second level mixing condenser (8) of water pump (10) connection level-one mixing condenser (6)
Water inlet；
In material route, material is sent into I effect evaporator (2) through feed pipe by feed pump (1), and I effect evaporator (2) passes through
Guide pipeline is connected with II effect evaporator (5)；The vaporization chamber bottom and heating room bottom of I effect evaporator (2) are followed by I effect
Ring axial-flow pump (19) connection, the vaporization chamber bottom and heating room bottom of II effect evaporator (5) pass through II effect circulation axial-flow pump
(15) it connects；II effect evaporator (5) is connected by marker pipe with finished product heating tank (14)；
It condenses in water line, it is cold that the condensed water that I effect evaporator (2) and II effect evaporator (5) generate passes through I, II effect respectively
Condensate pipeline enters I effect balance bucket (20) and II effect balance bucket (16), and I effect balance bucket (20) and II effect balance bucket (16) are each
Flash evaporation tank (21) and II effect flash evaporation tank (17) are imitated from connection I；
I effect flash evaporation tank (21) and II effect flash evaporation tank (17) pass through I, second condensed water transfer pipeline through respective I effect condensed water
Delivery pump (22) and second condensed water delivery pump (18) are connected with heating coil, the discharge system after exchanging heat；
The feeding pipe of feed pump (1) is equipped with automatic feed valve and manual inlet valve；Guide pipeline imitates evaporator (2) extremely from I
II effect evaporator (5) is successively arranged the manual guide valve of I effect, automatic guide valve, the II manual guide valve of effect；
I effect flash evaporation tank (21) is connected by pipeline with the heating room of II effect evaporator (5).
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| CN201611058802.3A CN106390497B (en) | 2016-11-28 | 2016-11-28 | Akali sulphide two-effect evaporation process system |
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| CN201611058802.3A CN106390497B (en) | 2016-11-28 | 2016-11-28 | Akali sulphide two-effect evaporation process system |
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| CN106390497B true CN106390497B (en) | 2019-01-04 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261052A (en) * | 1999-06-28 | 2000-07-26 | 周长生 | Evaporating process for sodium sulfide (alkali) |
| WO2001032561A1 (en) * | 1999-11-02 | 2001-05-10 | Shell Internationale Research Maatschappij B.V. | Process for the purification of industrial waste water from a propylene oxide production process |
| CN101041443A (en) * | 2007-03-09 | 2007-09-26 | 中盐制盐工程技术研究院 | Vacuum salt producing technique of salt-field saturated bittern direct ingress into evaporation tank |
| CN101618862A (en) * | 2008-07-02 | 2010-01-06 | 施建平 | Evaporation technology of industrial sodium sulphide |
| CN201470134U (en) * | 2009-08-05 | 2010-05-19 | 威海市锅炉制造厂 | External-heating forced circulation vacuum evaporator |
| CN103510166A (en) * | 2012-06-20 | 2014-01-15 | 杭州奥通科技有限公司 | High wet modulus viscose fiber coagulating bath processing assembly line |
| CN206424599U (en) * | 2016-11-28 | 2017-08-22 | 南风化工集团股份有限公司 | Akali sulphide two-effect evaporation process system |
-
2016
- 2016-11-28 CN CN201611058802.3A patent/CN106390497B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261052A (en) * | 1999-06-28 | 2000-07-26 | 周长生 | Evaporating process for sodium sulfide (alkali) |
| WO2001032561A1 (en) * | 1999-11-02 | 2001-05-10 | Shell Internationale Research Maatschappij B.V. | Process for the purification of industrial waste water from a propylene oxide production process |
| CN101041443A (en) * | 2007-03-09 | 2007-09-26 | 中盐制盐工程技术研究院 | Vacuum salt producing technique of salt-field saturated bittern direct ingress into evaporation tank |
| CN101618862A (en) * | 2008-07-02 | 2010-01-06 | 施建平 | Evaporation technology of industrial sodium sulphide |
| CN201470134U (en) * | 2009-08-05 | 2010-05-19 | 威海市锅炉制造厂 | External-heating forced circulation vacuum evaporator |
| CN103510166A (en) * | 2012-06-20 | 2014-01-15 | 杭州奥通科技有限公司 | High wet modulus viscose fiber coagulating bath processing assembly line |
| CN206424599U (en) * | 2016-11-28 | 2017-08-22 | 南风化工集团股份有限公司 | Akali sulphide two-effect evaporation process system |
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| CN106390497A (en) | 2017-02-15 |
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