CN207361978U - A kind of device of acid waste water evaporation emission reduction - Google Patents
A kind of device of acid waste water evaporation emission reduction Download PDFInfo
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- CN207361978U CN207361978U CN201721076095.0U CN201721076095U CN207361978U CN 207361978 U CN207361978 U CN 207361978U CN 201721076095 U CN201721076095 U CN 201721076095U CN 207361978 U CN207361978 U CN 207361978U
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- 238000001704 evaporation Methods 0.000 title claims abstract description 73
- 239000002253 acid Substances 0.000 title claims abstract description 51
- 230000008020 evaporation Effects 0.000 title claims abstract description 32
- 230000009467 reduction Effects 0.000 title claims abstract description 15
- 239000002351 wastewater Substances 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 104
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 239000006096 absorbing agent Substances 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 239000012141 concentrate Substances 0.000 claims abstract description 17
- 238000003795 desorption Methods 0.000 claims abstract description 16
- 238000000746 purification Methods 0.000 claims abstract description 10
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 claims description 74
- 238000010521 absorption reaction Methods 0.000 claims description 49
- 238000003860 storage Methods 0.000 claims description 41
- 238000004073 vulcanization Methods 0.000 claims description 29
- 238000001035 drying Methods 0.000 claims description 26
- 230000004087 circulation Effects 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 14
- 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 claims description 13
- 239000011734 sodium Substances 0.000 claims description 13
- 229910052708 sodium Inorganic materials 0.000 claims description 13
- 238000007872 degassing Methods 0.000 claims description 11
- 239000010802 sludge Substances 0.000 claims description 10
- 239000012295 chemical reaction liquid Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000005864 Sulphur Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 58
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 38
- 239000003546 flue gas Substances 0.000 abstract description 38
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 18
- 239000000126 substance Substances 0.000 abstract description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 4
- 229910000041 hydrogen chloride Inorganic materials 0.000 abstract description 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 abstract description 4
- 229910000040 hydrogen fluoride Inorganic materials 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052785 arsenic Inorganic materials 0.000 abstract description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 abstract description 3
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 3
- 238000005272 metallurgy Methods 0.000 abstract description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052801 chlorine Inorganic materials 0.000 abstract description 2
- 239000000460 chlorine Substances 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract description 2
- 206010013781 dry mouth Diseases 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 229910052731 fluorine Inorganic materials 0.000 abstract description 2
- 239000011737 fluorine Substances 0.000 abstract description 2
- 239000013589 supplement Substances 0.000 abstract description 2
- 230000009102 absorption Effects 0.000 description 37
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 21
- 238000003723 Smelting Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000001914 filtration Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 229910052976 metal sulfide Inorganic materials 0.000 description 2
- 238000009856 non-ferrous metallurgy Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001698 pyrogenic effect Effects 0.000 description 2
- 239000000779 smoke Substances 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
- 239000006228 supernatant Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- HUEBVZADHUOMHL-UHFFFAOYSA-N [As].[Pb] Chemical compound [As].[Pb] HUEBVZADHUOMHL-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 230000005945 translocation Effects 0.000 description 1
Abstract
The utility model belongs to technical field of environmental protection in chemical industry, more particularly to a kind of device of the acid waste water evaporation emission reduction produced in non-ferrous metal metallurgy flue gas acid preparing, the device includes purification concentrate contracting amount system, vulcanizing treatment system, adiabatic evaporation system and dry desorption system, purify concentrate contracting amount system, vulcanizing treatment system, adiabatic evaporation system passes sequentially through pipeline with dry desorption system and is connected, sour water is cleaned in cleaning system first, concentrate, after contracting amount, vulcanizing treatment is carried out to sour water, remove the heavy metal and arsenic in sour water, the efflux gas for going out dry mouth using two suction towers carries out adiabatic evaporation to sour water, gas band, which is leaked water, can also take away hydrogen fluoride and hydrogen chloride, into tail gas absorber, absorbing liquid in tail gas absorber is to hydrogen fluoride, hydrogen chloride, sulfur dioxide, after being absorbed, tail gas qualified discharge.For sour water after evaporating fluorine and chlorine removal, sour water amount further concentrates reduction, inhales supplement water using concentration sour water as dry, addition is dry to inhale acid mixing device, realizes the zero-emission of sour water.
Description
Technical field
The utility model belongs to technical field of environmental protection in chemical industry, and in particular to is produced in a kind of non-ferrous metal metallurgy flue gas acid preparing
Sour water evaporation emission reduction device.
Background technology
Sulfuric acid is a kind of important key industry raw material, it serves not only as the raw material of many chemical products, but also extensively
Applied to other departments of national economy, play an important role in national economy and people's lives.The production capacity of sulfuric acid is past
Toward one of mark for being the chemical industrial capacity of one country of measurement.
The raw materials for production of sulfuric acid are mainly based on sulphur, troilite and flue gas during smelting.The yield of metallurgical off-gas acid-making depends on
It is a kind of passive production technology in the development of pyrogenic process colored metallurgical industrial.Recently as the continuous development of nonferrous metallurgy, smelting
There is refining flue gas acid preparing irreplaceable environment protection significance and its cheap raw material advantage day to show prominent.
In pyrogenic process nonferrous metallurgical process, the non-ferrous metal in ore passes through roasting, melting, blowing, electrorefining etc.
A series of process is converted into the simple substance of high-purity, and the metal sulfide of association then transforms into roasting process in ore
Sulfur dioxide, is mixed in the multicomponent flue gas of high temperature and enters supporting environmentally friendly smelting acid making system.
The multicomponent flue gas of metallurgical off-gas acid-making device high temperature needs constantly to carry out washing cooling with industry water, to ensure
The safety in production of acid making system and product quality, the flue gas containing sulfur dioxide by drying process, conversion procedure and is done after washing
Liquid phase is qualified industrial sulphuric acid after inhaling process, and goes out over dry flue gas of the dry matter translocation with certain heat and enter tail gas absorption
Tower absorbs rear discharge up to standard by lye, substantial amounts of waste acid can be produced in flue gas washing, the waste acid solution system is extremely complex, group
Divide more, concentration height, mainly contain the harmful substances such as the various heavies such as ambrose alloy arsenic lead, dirt, halogen compound, be a kind of difficult
The mining and metallurgy industrial wastewater of processing.
Utility model content
The purpose of this utility model is to provide one kind can realize sour water reuse, reach the device of zero-emission.
To achieve the above object, the utility model provides following technical solution：
A kind of device of acid waste water evaporation emission reduction, the device include purification concentrate contracting amount system, vulcanizing treatment system, absolutely
Thermal evaporation system and dry desorption system, purification concentrate contracting amount system, vulcanizing treatment system, adiabatic evaporation system and dry desorption system are successively
It is connected by pipeline.
Further, purification concentrate contracting amount system includes turbulent tower, and the lower end both sides of turbulent tower are connected to first and follow
Ring pumps and dredge pump, first circulation pump by pipeline respectively with the reverse jet tube of turbulent tower side and be located inside turbulent tower first
Spray equipment connects, and dredge pump is connected with the first concentrator pipeline, and the upper end side of the first concentrator is stored up with the first sour water clear liquid
Tank pipeline connects, and the bottom of the first concentrator is connected by the first filter pump with the first filter press pipeline, the first filter press it is upper
End side be connected by pipeline with the first sour water clear liquid storage tank, and the bottom of the first filter press is equipped with acid mud sludge outlet, and first
The bottom of sour water clear liquid storage tank is connected with turbulent tower and vulcanizing treatment system pipeline respectively by the first delivery pump.
Further, vulcanizing treatment system includes vulcanization reaction device and vulcanized sodium storage tank, and vulcanized sodium storage tank passes through vulcanized sodium
Metering pump is connected with vulcanization reaction device pipeline, and the upper end of vulcanization reaction device is connected with the first tail gas absorber pipeline, and lower end passes through
Vulcanization reaction liquid delivery pump is connected with degassing tower pipeline, and the upper end of degassing tower is connected with the first tail gas absorber pipeline, degassing tower
Lower end be connected with the second concentrator pipeline, the upper end of the second concentrator is connected with the second sour water clear liquid storage-tank pipeline, and lower end leads to
Cross the second filter pressing pump to be connected with the second filter press pipeline, the bottom of the second filter press is equipped with vulcanization sludge outlet, the second press filtration
The side of machine is connected by pipeline with the second sour water clear liquid storage-tank pipeline, and the lower end of the second sour water clear liquid storage tank passes through the second conveying
Pump is connected with adiabatic evaporation system pipeline.
Further, adiabatic evaporation system includes the second sulfur trioxide absorption and evaporating column, and the upper end of evaporating column is equipped with
Evaporating column gas vent, evaporating column gas vent and the second tail gas absorption tower tube for offering the second tail gas absorber gas access
Road connects, and the lower end side of evaporating column is connected by the 3rd delivery pump with gelled acid water storage tank pipeline, under gelled acid water storage tank
End is connected by the 4th delivery pump with dry desorption system pipeline, and the lower end opposite side of evaporating column is pumped by second circulation and is located at evaporation
The second spray equipment pipeline connection inside tower；Second sulfur trioxide absorption upper end offers the second sulfur trioxide absorption gas
Body exports, and the second sulfur trioxide absorption gas vent is connected by pipeline and the evaporating column gas inlet duct being located on evaporating column
Connect.
Further, dry desorption system includes drying tower, drying cycles groove, sour water holding vessel and absorption cycle groove, drying tower
It is connected successively with First Heat Exchanger, converter and the first sulfur trioxide absorption by pipeline, sour water holding vessel passes through sour water meter
Amount pump respectively with dry acid mixing device and absorbing acid mixing device pipeline and being connected, drying cycles groove respectively with drying tower and drying acid mixing device pipe
Road connects, and absorption cycle groove is connected with the first sulfur trioxide absorption and absorption acid mixing device pipeline respectively, and the first sulfur trioxide is inhaled
The upper end for receiving tower is connected with the second heat exchanger tube, and converter is connected with the second heat exchanger and the second sulfur trioxide absorption pipeline
Connection.
Further, first circulation pump is two groups.
Further, dredge pump is one group.
Compared with prior art, the beneficial effects of the utility model are：
The utility model first cleans sour water in cleaning system, after concentrate, contracting amount, carries out vulcanizing treatment to sour water, removes
The heavy metal and arsenic in sour water are removed, the efflux gas that dry mouth is gone out using two suction towers carries out adiabatic evaporation to sour water, and gas is taken away
Hydrogen fluoride and hydrogen chloride can be also taken away while water, into tail gas absorber, utilizes the sodium hydroxide absorbing liquid of tail gas absorber
To hydrogen fluoride, hydrogen chloride, sulfur dioxide, absorb after, tail gas qualified discharge.Sour water after evaporating fluorine and chlorine removal, sour water amount into
The concentration of one step is reduced, and using concentration sour water as suction supplement water is done, is added dry suction acid mixing device, is realized the zero-emission of sour water.
Brief description of the drawings
Fig. 1 is the system structure diagram of the utility model；
Fig. 2 is that concentrate contracting amount system structure diagram is purified in Fig. 1；
Fig. 3 is vulcanizing treatment system structure diagram in Fig. 1；
Fig. 4 is adiabatic evaporation system structure diagram in Fig. 1；
Fig. 5 is dry desorption system structure diagram in Fig. 1.
In figure：1- purifies concentrate contracting amount system；2- vulcanizing treatment systems；3- adiabatic evaporation systems；The dry desorption systems of 4-；5- is rapid
Rush tower；6- reverse jet tubes；The first spray equipments of 7-；8- first circulations pump；9- dredge pumps；The first concentrators of 10-；The first press filtrations of 11-
Pump；12- the first sour water clear liquid storage tanks；The first delivery pumps of 13-；The first filter presses of 14-；15- acid mud sludge outlets；16- vulcanizes
Reactor；17- vulcanization reaction liquid delivery pumps；18- vulcanized sodium storage tanks；19- vulcanized sodium metering pumps；The first tail gas absorbers of 20-；
21- degassing towers；The second concentrators of 22-；The second filter pressing pumps of 23-, the second filter presses of 24-；25- vulcanizes sludge outlet；26- second
Sour water clear liquid storage tank；The second delivery pumps of 27-；The second sulfur trioxide absorptions of 28-；29- second absorption tower gas vents；30- steams
Send out tower gas access；31- evaporating columns；32- second circulations pump；The second spray equipments of 33-；34- evaporating column gas vents；35-
Two tail gas absorber gas accesses；The second tail gas absorbers of 36-；The 3rd delivery pumps of 37-；38- gelled acid water storage tanks；39- the 4th
Delivery pump；40- drying towers；41- drying tower smoke inlets；42- First Heat Exchangers；The second heat exchangers of 43-；44- converters；45-
First sulfur trioxide absorption；46- drying cycles grooves；47- sour water holding vessels；48- sour water metering pumps；49- absorption cycle grooves；
50- dries acid mixing device；51- absorbs acid mixing device.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
Embodiment 1
As shown in Figure 1, a kind of device of acid waste water evaporation emission reduction, the device include purification concentrate contracting amount system 1, vulcanization
Processing system 2, adiabatic evaporation system 3 and dry desorption system 4, purification concentrate contracting amount system 1, vulcanizing treatment system 2, adiabatic evaporation system
System 3 passes sequentially through pipeline with dry desorption system 4 and is connected.
As shown in Fig. 2, purification concentrate contracting amount system 1 includes turbulent tower 5, the lower end both sides of turbulent tower 5 are connected to the
One circulating pump 8 and dredge pump 9, are at least two groups of first circulation pump 8 by the pipeline reverse jet tube 6 with 5 side of turbulent tower respectively
Connected with the first spray equipment 7 being located inside turbulent tower 5, be at least one group of 9 and first concentrator of dredge pump, 10 pipeline and connect
Connect, the upper end side of the first concentrator 10 is connected with 12 pipeline of the first sour water clear liquid storage tank, and the bottom of the first concentrator 10 passes through
First filter pump 11 is connected with 14 pipeline of the first filter press, and the upper end side of the first filter press 14 is clear by pipeline and the first sour water
Liquid storage tank 12 connects, and the bottom of the first filter press 14 is equipped with sour mud sludge outlet 15, the bottom of the first sour water clear liquid storage tank 12
It is connected respectively with turbulent tower 5 and 2 pipeline of vulcanizing treatment system by the first delivery pump 13.
As shown in figure 3, vulcanizing treatment system 2 includes vulcanization reaction device 16 and vulcanized sodium storage tank 18, vulcanized sodium storage tank 18 is logical
Sodium persulfide metering pump 19 is connected with 16 pipeline of vulcanization reaction device, and the upper end of vulcanization reaction device 16 is managed with the first tail gas absorber 20
Road connects, and lower end is connected by vulcanization reaction liquid delivery pump 17 with 21 pipeline of degassing tower, the upper end of degassing tower 21 and the first tail gas
The connection of absorption tower 20 pipeline, the lower end of degassing tower 21 are connected with 22 pipeline of the second concentrator, the upper end of the second concentrator 22 and the
Two sour water clear liquid storage tanks, 26 pipeline connects, and lower end is connected by the second filter pressing pump 23 with 24 pipeline of the second filter press, the second press filtration
The bottom of machine 24 is equipped with vulcanization sludge outlet 25, and the side of the second filter press 24 passes through pipeline and the second sour water clear liquid storage tank 26
Pipeline connects, and the lower end of the second sour water clear liquid storage tank 26 is connected by the second delivery pump 27 with 3 pipeline of adiabatic evaporation system.
As shown in figure 4, adiabatic evaporation system 3 includes the second sulfur trioxide absorption 28 and evaporating column 31, evaporating column 31
Upper end is equipped with evaporating column gas vent 34, evaporating column gas vent 34 and offers the of the second tail gas absorber gas access 35
Two tail gas absorbers, 36 pipeline connects, and the lower end side of evaporating column 31 passes through the 3rd delivery pump 37 and 38 pipeline of gelled acid water storage tank
Connection, the lower end of gelled acid water storage tank 38 are connected by the 4th delivery pump 39 with dry 4 pipeline of desorption system, and the lower end of evaporating column 31 is another
Side is connected by second circulation pump 32 with 33 pipeline of the second spray equipment being located inside evaporating column 31；Second sulfur trioxide is inhaled
Receive 28 upper end of tower and offer the second sulfur trioxide absorption gas vent 29, the second sulfur trioxide absorption gas vent 29 passes through
Pipeline is connected with 30 pipeline of evaporating column gas access being located on evaporating column 31.
As shown in figure 5, dry desorption system 4 includes drying tower 40, drying cycles groove 46, sour water holding vessel 47 and absorption cycle groove
49, drying tower 40 is connected with First Heat Exchanger 42,44 and first sulfur trioxide absorption 45 of converter successively by pipeline, sour water
Holding vessel 47 is connected with dry acid mixing device 50 and absorption 51 pipeline of acid mixing device respectively by sour water metering pump 48, drying cycles groove 46
Be connected respectively with drying tower 40 and dry 50 pipeline of acid mixing device, absorption cycle groove 49 respectively with the first sulfur trioxide absorption 45 and
The connection of 51 pipeline of acid mixing device is absorbed, the upper end of the first sulfur trioxide absorption 45 is connected with 43 pipeline of the second heat exchanger, converter
44 are connected connection with the second heat exchanger 43 and 28 pipeline of the second sulfur trioxide absorption.
When specifically used, application method carries out the utility model as steps described below：
Step 1：Circulation sour water is delivered in 6 and first spray equipment 7 of reverse jet tube in turbulent tower 5 by first circulation pump 8,
Flue gas during smelting enters from 6 top of reverse jet tube, and circulation sour water is squeezed into upwards from 6 lower part of reverse jet tube, in reverse jet tube 6, flue gas during smelting
Bump against with circulation sour water and produce froth zone, once washing of the sour water to flue gas during smelting occurs in froth zone, flue gas during smelting enters rapid
Rush the tower body of tower 5, with sprayed from the first spray equipment 7 and under sour water counter current contacting, washing, complete the secondary of flue gas during smelting and wash
Wash, flue gas during smelting is discharged from 5 tower top of turbulent tower, after washed tower, cooling tower, electrostatic precipitator are handled, enters drying tower
Among 40；
Step 2：The sour water dredge pump 9 that turbulent tower in step 15 produces is delivered to the first concentrator 10, sour water is
Precipitated, concentrated in one concentrator 10, supernatant overflow is to the first sour water clear liquid storage tank 12, and bottom concentrate is through the first press filtration
Pump 11 squeezes into the first filter press 14 and carries out press filtration, and filtrate enters the first sour water clear liquid storage tank 12, through sour 15 row of mud sludge outlet
The sour mud filter residue gone out is recycled or sold outside；
Step 3：The sour water clear liquid of the first sour water clear liquid storage tank 12 in step 2 is sent into by rapid punching by the first delivery pump 13
Tower 5 is continuing with, and when the clear liquid acidity of the first sour water clear liquid storage tank 12 is in 13-15%, it is anti-to be sent into vulcanization with the first delivery pump 13
Answer device 16；
Step 4：The prepared sodium sulfide solution vulcanized sodium metering pump 19 of vulcanized sodium storage tank 18 is sent into step 3 and is vulcanized
In reactor 16, stirred in vulcanization reaction device 16, sour water clear liquid carries out vulcanization reaction with sodium sulfide solution, and heavy metal ion turns
Insoluble or indissoluble sulfide is turned to, arsenic is converted into the precipitation of arsenones, and the pernicious gas that vulcanization reaction produces enters the first tail
Aspiration tower 20 carries out absorption processing, emptying after gas treatment is up to standard；
Step 5：Vulcanization reaction liquid in vulcanization reaction device 16 in step 4 is sent into through vulcanization reaction liquid delivery pump 17 de-
Gas tower 21 is de-gassed, and removing gas is recycled into the first tail gas absorber 20, absorption processing, gas treatment heel row up to standard
It is empty；
Step 6：Removing liquid in degassing tower in step 5 21 is entered into the second concentrator 22, metal sulfide and arsenones
Precipitated, the underflow in the second concentrator 22 is sent into the second filter press 24 with the second filter pressing pump 23, and metal is isolated through press filtration
The vulcanization filter residue of sulfide and arsenones is collected by vulcanizing to arrange outside sludge outlet 25, and the vulcanization filter residue after collection is sent into slag factory
Processing, 22 overflow supernatant of the second concentrator are stored with 24 filtrate of the second filter press into the second sour water clear liquid storage tank 26；
Step 7：The 26 sour water clear liquid of the second sour water clear liquid storage tank in step 6 is sent into evaporating column 31 with the second delivery pump 27
It is interior, after the sour water clear liquid in evaporating column 31 reaches the liquid level necessarily set, second circulation pump 32 is opened, sour water is sent to the second spray
Shower device 33；
Step 8：By the flue gas of the top of turbulent tower in step 15 discharge, washed tower, cooling tower, electrostatic precipitator are handled
Afterwards, entered by drying tower smoke inlet 41 among drying tower 40；
Step 9：The flue gas of step 8 is dried through drying tower 40 and removed water, and heat exchange heating is carried out into First Heat Exchanger 42, is heated up
Afterwards, sulfur dioxide flue gas is converted into converter 44, and sulfur dioxide flue gas is converted into sulfur trioxide flue gas；
Step 10：The sulfur trioxide flue gas of step 9 enters the first sulfur trioxide absorption 45, in the first sulfur trioxide absorption
In tower 45, sulfuric acid absorbs sulfur trioxide flue gas, generates sulfuric acid；
Step 11：The flue gas of step 10 carries out after the absorption of the first sulfur trioxide absorption 45 into the second heat exchanger 43
Heat exchange heating, after heating, sulfur dioxide flue gas enters converter 44, to the sulfur dioxide flue gas not being converted, continues to turn
Change, sulfur dioxide flue gas is converted into sulfur trioxide flue gas；
Step 12：The sulfur trioxide flue gas of step 11 enters the second sulfur trioxide absorption 28, is inhaled in the second sulfur trioxide
Receive in tower 28, sulfuric acid absorbs sulfur trioxide flue gas, generates sulfuric acid；
Step 13：The flue gas of step 12 enters steaming by second absorption tower gas vent 29 by evaporating column gas access 30
Send out tower 31；
Step 14：Step 13 enters 33 top-down sour water of the aqueous low flue gas of evaporating column 31 and the second spray equipment
After counter current contacting takes away moisture, flue gas is gone out by evaporating column gas vent 34；
Step 15：After step 14 flue gas is gone out by evaporating column gas vent 34, through pipeline to the second tail gas absorber 36
Second tail gas absorber gas vent 35 enters the second tail gas tail and inhales tower 36, and inhaling tower 36 by the second tail gas tail reaches gas treatment
Discharged after mark.
Step 16：In evaporating column 31, the sour water after concentration is sent into gelled acid water storage tank 38 by the 3rd delivery pump 37 and is stored up
Deposit, meanwhile, the sour water of second sour water clear liquid storage tank 26 is continuously replenished by the second delivery pump 27, ensures liquid level in evaporating column 31
It is normally carried out with circulation, the concentration sour water into gelled acid water storage tank 38 is sent into sour water holding vessel 47 by the 4th delivery pump 39.
Step 17：Gelled acid water storage tank 38 is sent into by sour water holding vessel 47 by the 4th delivery pump 39, by sour water metering pump
Sour water is sent into dry acid mixing device 50 or absorbs acid mixing device 51 by 48, sulfuric acid concentration is controlled, so as to fulfill sour water zero-emission.
Step 18：In the process, drying cycles groove 46 and absorption cycle groove 49 in circulating and going here and there acid, it is necessary to constantly mend
Enter moisture, control sulfuric acid concentration.
By the device use of above-mentioned sour water evaporation emission reduction in 53 tons of sulfate systems, usage time interval is March 16 in 2017
Day 8：23 days 8 March of 00-2017：00, the circulation liquid acidity in turbulent tower 5 is carried to more than 10% by 5%, and 16- is down in sour water discharge
19m3/h, after vulcanization slagging-off, send the sour water after removing the gred is vulcanized into evaporating column 31 with the second delivery pump 27, reaches certain liquid level
Afterwards, second circulation pump 32 is opened, is passed through the aqueous low flue gas of the second sulfur trioxide absorption 28, the inlet flue gas of evaporating column 31
Amount：142976Nm3/h-148278Nm3/h, temperature：62 DEG C -69 DEG C, aqueous low flue gas and the second spray equipment 33 are from top to bottom
Spray sour water counter current contacting, aqueous low flue gas takes away the partial moisture in sour water, into the second tail gas absorber 36, passes through
Two tail gas absorbers 36 by fume treatment it is up to standard after discharge.The aqueous low flue gas of evaporating column 31 water amount that is averaged is：4.3t/h, steams
Sour water after hair concentration enters sour water holding vessel 47, and sour water is sent into dry acid mixing device 50 by sour water metering pump 48 or absorbs nitration mixture
Device 51, controls sulfuric acid concentration, realizes sour water zero-emission.
Claims (7)
1. a kind of device of acid waste water evaporation emission reduction, the device include purification concentrate contracting amount system（1）, vulcanizing treatment system
（2）, adiabatic evaporation system（3）With dry desorption system（4）, it is characterised in that the purification concentrate contracting amount system（1）, at vulcanization
Reason system（2）, adiabatic evaporation system（3）With dry desorption system（4）Pipeline is passed sequentially through to be connected.
A kind of 2. device of acid waste water evaporation emission reduction as claimed in claim 1, it is characterised in that the purification concentrate contracting
Amount system（1）Including turbulent tower（5）, turbulent tower（5）Lower end both sides be connected to first circulation pump（8）And dredge pump（9）,
The first circulation pump（8）By pipeline respectively with turbulent tower（5）The reverse jet tube of side（6）Be located at turbulent tower（5）It is internal
The first spray equipment（7）Connection, the dredge pump（9）With the first concentrator（10）Pipeline connects, the first concentrator（10）
Upper end side and the first sour water clear liquid storage tank（12）Pipeline connects, the first concentrator（10）Bottom pass through the first filter pump
（11）With the first filter press（14）Pipeline connects, the first filter press（14）Upper end side pass through pipeline and the first sour water clear liquid and store up
Tank（12）Connection, the first filter press（14）Bottom be equipped with sour mud sludge outlet（15）, the first sour water clear liquid storage tank
（12）Bottom pass through the first delivery pump（13）Respectively with turbulent tower（5）With vulcanizing treatment system（2）Pipeline connects.
3. the device of a kind of acid waste water evaporation emission reduction as claimed in claim 1 or 2, it is characterised in that at the vulcanization
Reason system（2）Including vulcanization reaction device（16）With vulcanized sodium storage tank（18）, the vulcanized sodium storage tank（18）Pass through vulcanized sodium meter
Amount pump（19）With vulcanization reaction device（16）Pipeline connects, vulcanization reaction device（16）Upper end and the first tail gas absorber（20）Pipeline
Connection, lower end passes through vulcanization reaction liquid delivery pump（17）With degassing tower（21）Pipeline connects, degassing tower（21）Upper end and first
Tail gas absorber（20）Pipeline connects, degassing tower（21）Lower end and the second concentrator（22）Pipeline connects, the second concentrator
（22）Upper end and the second sour water clear liquid storage tank（26）Pipeline connects, and lower end passes through the second filter pressing pump（23）With the second filter press
（24）Pipeline connects, the second filter press（24）Bottom be equipped with vulcanization sludge outlet（25）, the second filter press（24）Side
Pass through pipeline and the second sour water clear liquid storage tank（26）Pipeline connects, the second sour water clear liquid storage tank（26）Lower end pass through second conveying
Pump（27）With adiabatic evaporation system（3）Pipeline connects.
A kind of 4. device of acid waste water evaporation emission reduction as claimed in claim 3, it is characterised in that the adiabatic evaporation system
System（3）Including the second sulfur trioxide absorption（28）And evaporating column（31）, evaporating column（31）Upper end go out equipped with evaporating column gas
Mouthful（34）, evaporating column gas vent（34）With offering the second tail gas absorber gas access（35）The second tail gas absorber
（36）Pipeline connects, evaporating column（31）Lower end side pass through the 3rd delivery pump（37）With gelled acid water storage tank（38）Pipeline connects
Connect, gelled acid water storage tank（38）Lower end pass through the 4th delivery pump（39）With dry desorption system（4）Pipeline connects, evaporating column（31）'s
Lower end opposite side is pumped by second circulation（32）With being located at evaporating column（31）The second internal spray equipment（33）Pipeline connects；Institute
The second sulfur trioxide absorption stated（28）Upper end offers the second sulfur trioxide absorption gas vent（29）, the two or three oxidation
Sulphur absorption tower gas vent（29）By pipeline and it is located at evaporating column（31）On evaporating column gas access（30）Pipeline connects.
A kind of 5. device of acid waste water evaporation emission reduction as claimed in claim 4, it is characterised in that the dry desorption system
（4）Including drying tower（40）, drying cycles groove（46）, sour water holding vessel（47）With absorption cycle groove（49）, the drying tower
（40）By pipeline successively with First Heat Exchanger（42）, converter（44）With the first sulfur trioxide absorption（45）Connection, it is described
Sour water holding vessel（47）Pass through sour water metering pump（48）Respectively with drying acid mixing device（50）With absorption acid mixing device（51）Pipeline connects
Connect, the drying cycles groove（46）Respectively with drying tower（40）With dry acid mixing device（50）Pipeline connects, and the absorption follows
Annular groove（49）Respectively with the first sulfur trioxide absorption（45）With absorption acid mixing device（51）Pipeline connects, first sulfur trioxide
Absorption tower（45）Upper end and the second heat exchanger（43）Pipeline connects, the converter（44）With the second heat exchanger（43）With second
Sulfur trioxide absorption（28）Pipeline connection connection.
A kind of 6. device of acid waste water evaporation emission reduction as claimed in claim 2, it is characterised in that the first circulation pump
（8）For two groups.
A kind of 7. device of acid waste water evaporation emission reduction as claimed in claim 2, it is characterised in that the dredge pump（9）
For one group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721076095.0U CN207361978U (en) | 2017-08-25 | 2017-08-25 | A kind of device of acid waste water evaporation emission reduction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721076095.0U CN207361978U (en) | 2017-08-25 | 2017-08-25 | A kind of device of acid waste water evaporation emission reduction |
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| CN207361978U true CN207361978U (en) | 2018-05-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445379A (en) * | 2017-08-25 | 2017-12-08 | 金川集团股份有限公司 | A kind of device and method of acid waste water evaporation emission reduction |
| CN113230831A (en) * | 2021-05-11 | 2021-08-10 | 云南皓普工程技术有限公司 | System and method for washing, arsenic removal and purification of nonferrous smelting flue gas through adiabatic evaporation and cooling |
-
2017
- 2017-08-25 CN CN201721076095.0U patent/CN207361978U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445379A (en) * | 2017-08-25 | 2017-12-08 | 金川集团股份有限公司 | A kind of device and method of acid waste water evaporation emission reduction |
| CN113230831A (en) * | 2021-05-11 | 2021-08-10 | 云南皓普工程技术有限公司 | System and method for washing, arsenic removal and purification of nonferrous smelting flue gas through adiabatic evaporation and cooling |
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Effective date of registration: 20240220 Address after: 737100 No. 2 Lanzhou Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province Patentee after: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region after: China Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Patentee before: JINCHUAN GROUP Co.,Ltd. Country or region before: China |
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