CN206198735U - It is a kind of to smelt the device that arsenical fume water flashes dry method arsenic removal - Google Patents
It is a kind of to smelt the device that arsenical fume water flashes dry method arsenic removal Download PDFInfo
- Publication number
- CN206198735U CN206198735U CN201621143064.8U CN201621143064U CN206198735U CN 206198735 U CN206198735 U CN 206198735U CN 201621143064 U CN201621143064 U CN 201621143064U CN 206198735 U CN206198735 U CN 206198735U
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- Prior art keywords
- flash column
- water
- temperature
- flue gas
- atomizer
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 229910052785 arsenic Inorganic materials 0.000 title claims abstract description 32
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000003517 fume Substances 0.000 title claims abstract description 18
- 241001062472 Stokellia anisodon Species 0.000 title claims description 3
- 239000003546 flue gas Substances 0.000 claims abstract description 80
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 77
- 239000004744 fabric Substances 0.000 claims abstract description 24
- 239000007789 gas Substances 0.000 claims description 27
- 239000000779 smoke Substances 0.000 claims description 12
- 230000005684 electric field Effects 0.000 claims description 7
- 239000012212 insulator Substances 0.000 claims description 7
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 210000001367 artery Anatomy 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- GOLCXWYRSKYTSP-UHFFFAOYSA-N arsenic trioxide Inorganic materials O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 abstract description 24
- 239000013078 crystal Substances 0.000 abstract description 19
- 239000002253 acid Substances 0.000 abstract description 13
- 238000003723 Smelting Methods 0.000 abstract description 12
- 239000002699 waste material Substances 0.000 abstract description 12
- 238000007701 flash-distillation Methods 0.000 abstract description 7
- 239000010865 sewage Substances 0.000 abstract description 7
- 238000001704 evaporation Methods 0.000 abstract description 6
- 230000008020 evaporation Effects 0.000 abstract description 6
- 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 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 239000011734 sodium Substances 0.000 abstract description 4
- 229910052708 sodium Inorganic materials 0.000 abstract description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 3
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 3
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 3
- 239000004571 lime Substances 0.000 abstract description 3
- 230000001376 precipitating effect Effects 0.000 abstract description 3
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- HJTAZXHBEBIQQX-UHFFFAOYSA-N 1,5-bis(chloromethyl)naphthalene Chemical compound C1=CC=C2C(CCl)=CC=CC2=C1CCl HJTAZXHBEBIQQX-UHFFFAOYSA-N 0.000 abstract 2
- IKWTVSLWAPBBKU-UHFFFAOYSA-N a1010_sial Chemical compound O=[As]O[As]=O IKWTVSLWAPBBKU-UHFFFAOYSA-N 0.000 description 22
- 229960002594 arsenic trioxide Drugs 0.000 description 22
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 239000002245 particle Substances 0.000 description 11
- 238000009835 boiling Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 238000000889 atomisation Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 230000009466 transformation Effects 0.000 description 5
- 239000002918 waste heat Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 238000009867 copper metallurgy Methods 0.000 description 4
- 229910052593 corundum Inorganic materials 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910052745 lead Inorganic materials 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000007790 solid phase Substances 0.000 description 4
- 238000009692 water atomization Methods 0.000 description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- JRIGVWDKYXCHMG-UHFFFAOYSA-N (5-arsoroso-2-hydroxyphenyl)azanium;chloride Chemical compound Cl.NC1=CC([As]=O)=CC=C1O JRIGVWDKYXCHMG-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910000413 arsenic oxide Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229950008475 oxophenarsine Drugs 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a kind of device for smelting the flash distillation dry method arsenic removal of arsenical fume water, including electric cleaner, flash column, pulsed jet cloth filter, water pump, valve, atomizer, heater, unloading rack, temperature monitor, single-chip microcomputer, flowmeter, the evaporation latent heat evaporated rapidly using droplet in flash column absorbs the heat of flue gas, the temperature of flue gas is set to be rapidly reduced to the temperature of needs, tide over the solidification range of amorphous arsenic trioxide, so as to obtain crystal arsenic trioxide to greatest extent, discharged without waste acid water using flash column, sewage-treatment plant load reduction, non-secondary pollution, it is significant to environmental protection, without precipitating reagents such as vulcanized sodium and lime, cost of sewage disposal declines, improve Business Economic Benefit.
Description
Technical field
The utility model is related to a kind of device for smelting the flash distillation dry method arsenic removal of arsenical fume water, specifically using device
In flash column realize that water flash distillation makes smelting arsenical fume lower the temperature, arsenic trioxide is removed, and be avoided that waste acid and mud arsenic are produced
The secondary pollution that green tape is come, belongs to metallurgical environmental protection field.
Background technology
Domestic and international enterprise contains the concentrate of arsenic as raw materials for metallurgy, in smelting to make full use of resource using the relatively low height of grade
Produced flue gas contains substantial amounts of arsenic trioxide during refining.The method of arsenic removal is gone generally to use wet method from flue gas at present
Cooling mode arsenic removal, fast cooling device is that the press water spraying cycle in flash cold column, flash cold column using 0.4~0.6Mpa is cooled down, will
Flue-gas temperature reduction, the flue gas induced-draft fan after bag hose receives arsenic is sent to acid making system, cooled in flash cold column water circulation
Cheng Zhong, there is part SO2And As2O3It is soluble in water, more waste acid is formed, waste acid contains As ions, it is necessary to waste acid
Reason, using two sections for the treatment of, one section uses vulcanization method to waste acid, and waste acid is added into Na2S solution remove As ions, after reaction waste acid from
Flowing into vulcanization section concentrator carries out sedimentation separation, and concentrator supernatant enters waste acid pond, and underflow delivers to vulcanization section pressure through pump pressurization
Filter, after being dehydrated through filter press, sells or returns smelting system, even so, arsenic still wants after-treatment outside vulcanized slag.Wet method chilling
Mode arsenic removal using quenching tower cooler shortcoming be：（1）Increased the trouble of secondary receipts arsenic；（2）The method is precipitated using vulcanized sodium,
Processing cost is high；（3）Sewage treatment load is increased, equipment is increased, and increased gypsum treatment amount.
Flash distillation refers to that the saturation water of high pressure enters in the container for comparing low pressure, due to the unexpected reduction of pressure, these saturations
Water becomes the saturated steam and saturation water under the container pressure of a part, and flash column can be realized in chemical process
The rough gas-liquid of material is separated, and first passing through flash column before atmospheric pressure kiln is entered separates roughly, it is possible to reduce the load of atmospheric pressure kiln.
Flash column can realize the change of liquid phase phase transition temperature by the air pressure in control tower simultaneously, and reaching separation has close phase transformation
The advantage of the material of temperature.Using flash distillation method come arsenic removal the characteristics of be：（1）Without the discharge of waste acid water, sewage-treatment plant is born
Lotus reduces, and non-secondary pollution is significant to environmental protection, without precipitating reagents such as vulcanized sodium and lime, sewage disposal into
This decline, improves Business Economic Benefit；（2）Flash column can realize the regulation of size droplet diameter by adjusting flow, improve oxidation
The purity of arsenic crystal；（3）Water have passed through the process of " boiling-water droplet-steam ", " heat release-suction therein from water pump to tail gas
Heat " improves the heat absorption capacity of water.
At present, report is had not seen on flashing the device and method of dry method arsenic removal with water.
The content of the invention
The utility model provides a kind of device for smelting the flash distillation dry method arsenic removal of arsenical fume water, including electric cleaner 2, flash distillation
Tower 3, pulsed jet cloth filter 4, water pump 5, valve 6, atomizer 7, unloading rack 10, temperature monitor 11, single-chip microcomputer 12, flowmeter
13；Smoke inlet 1 is arranged on the bottom of electric cleaner 2, and electric cleaner 2 includes two electric fields and two insulator chambers, electric cleaner 2
The insulator chamber on top is provided with exhanst gas outlet and is connected with flash column 3, and atomizer 7, atomizer 7 and water are provided with inside flash column 3
Pump 5 is connected, and water pump 5 is provided with valve 6 and temperature monitor 11, temperature monitor 11 also respectively with the flue gas of the bottom of flash column 3
Outlet, single-chip microcomputer 12 are connected, and single-chip microcomputer 12 is connected with flowmeter 13, and flowmeter 13 is connected with valve 6, the bottom flue gas of flash column 3
Outlet connection pulsed jet cloth filter 4, sack cleaner 4 is provided with exhanst gas outlet 9, electric cleaner 2, flash column 3, pulse bag
The bottom of deduster 4 is equipped with discharger.
Heater 8 is provided between the atomizer 7 and water pump 5.
The single-chip microcomputer 12 is conventional single-chip microcomputer purchased in market, such as ATMEL single-chip microcomputers, PHLIPIS51PLC series monolithics, TI
Company's single-chip microcomputer, MOTOROLA single-chip microcomputers or Samsung single-chip microcomputer.
The heater 8 is electric heating tube.
The flowmeter 13 includes flow detection unit and flow controlling unit, such as CMFI types Coriolis mass flow purchased in market
Meter.
Carry out smelting the method that arsenical fume water flashes dry method arsenic removal using described device, comprise the following steps that：
（1）During arsenical fume will be smelted from smoke inlet 1 into the electric cleaner 4 of dual field, by gold under electric field action
Category Cu, Fe, Zn, Pb and SiO2、CaO、 MgO、 Al2O3After being collected etc. nonmetallic and metal oxide solid thing, enter
Enter recovery in the discharger of the bottom of electric cleaner 2, flue gas enters flash column 3；
（2）Step（1）Flue gas enter flash column 3 after, the water of boiling is atomized by atomizer 7, water from fluidized state become
For volume becomes big after droplet, heat release, droplet and the smoke contacts for entering after atomization, flue-gas temperature is higher than droplet, and droplet absorbs
The heat of flue gas release is changed into vapor, and flue-gas temperature is rapidly reduced to 120~130 DEG C from 320~330 DEG C, and flue gas reclaimed water is steamed
Vapour content is improved, and arsenic trioxide crystal little particle is separated out, and water is steam condition in flash column 3, will not be condensed, so three oxidations
Two arsenic crystal little particles will not grow up and be trapped in flash column, but as flue gas stream enters pulsed jet cloth filter 4, this
When sulfur dioxide in flue gas dew-point temperature be 69~70 DEG C, will not condense condensations, and phase transformation temperature pointses are in 120 in temperature-fall period
Impurity between~330 DEG C is brought together while being changed into solid-state, larger heavy particle is formed, in the lower half of flash column 3
Part by gravity and centrifugal force effect into the bottom of flash column 3 discharger so as to be removed, complete a 3-stage dust-removal mistake
Journey, increases the purity of arsenic trioxide in the exit flow of flash column 3, realizes and is reached by temperature controlled effect with flash column
To gas-liquid separation, solid-phase purified effect, flue gas of the temperature monitor 11 to flash column 3 out is monitored, if flue gas temperature
Degree is not reaching to require that then signal is fed back to single-chip microcomputer 12 by temperature monitor 11, and single-chip microcomputer 12 controls flowmeter 13 to adjust
The size that valve 6 is opened, then controls water to adjust caloric receptivity；
（3）Step（2）Flue gas after cooling enters pulsed jet cloth filter 4, and flue gas cool-down, crystal arsenic trioxide is direct
It is trapped within cloth bag, the flue gas after arsenic removal is sent to next treatment process from the discharge of exhanst gas outlet 9.
Atomizer 7 in the flash column 3 make water fogging after droplet size less than 100 μm, water is fast in very short time
Speed evaporation, the smaller evaporation rate of droplet is faster.
The hydraulic pressure by water pump is 0.3~0.35MPa, and water is in fluidized state before atomization（Water under corresponding pressure
Boiling point can calculate）, the surface tension of water is reduced, fogdrop diameter reduces, and actually hot water is entered by atomizer 7
Atmospheric flash tower 3 has reached the vapourizing temperature of water, and water is absorbed by rapid vaporization, the evaporation latent heat evaporated using water droplet rapid vaporization
The heat of flue gas, makes the temperature of flue gas be rapidly reduced to the temperature of needs, tides over the solidification range of amorphous arsenic trioxide, from
And crystal arsenic trioxide is obtained to greatest extent.
Obtain after tested, SO2Into the dew-point temperature after flash column 3 it is about 70 DEG C or so, and requires flash column 3 out
The temperature of flue gas is 120~130 DEG C, and this temperature compares SO under the conditions of this2Dew-point temperature it is high 50~60 DEG C, under such circumstances,
SO2Sulfuric acid coagulating sedimentation will not be become, be that follow-up relieving haperacidity retains more raw materials, it is also possible to allowed in the discharger of the bottom of flash column 3
Sulphuric acid production life is not had and faces waste acid discharge.
The aperture for controlling to adjust valve 6 by temperature monitor 11, single-chip microcomputer 12, flowmeter 13 carrys out regulating pondage, water by
The outlet temperature of flue gas is determined that is, the monitoring of temperature monitor 11 water pump 5 is intake and by the temperature of the exiting flue gas of flash column 3
Difference, according to heat conservation principle（CFlue gasMFlue gas△TFlue gas=CWaterMWater△TWater+KHeat loss constant, KHeat loss constantIt is that tower body heat loss and water atomization are swollen
Swollen heat loss, tower body heat loss can be obtained by actual measurement, and water atomization expansion heat loss can be by being calculated）, because entering
Enter what the temperature of the water of atomizer was to determine, then can calculate and flue gas is reduced to water required in specified for temperature ranges, reach
To temperature control and the purpose of energy-conservation.
The source of the water of the water pump 5 in smelting process by the hot water or ordinary tap water after heat exchange, if
The water of boiling can then be directly entered atomizer 7 and use.
The beneficial effects of the utility model：
（1）Discharged without waste acid water using device described in the utility model, sewage treatment load reduction, non-secondary pollution is right
Environmental protection is significant, and the precipitating reagents such as vulcanized sodium and lime are not used, and cost of sewage disposal declines, and improves business economic
Benefit.
（2）Flash column can realize the regulation of size droplet diameter by adjusting flow, improve the purity of arsenic oxide arsenoxide crystal.
（3）Water have passed through the process of " boiling-water droplet-steam " from water pump to tail gas, and " heat release-heat absorption " therein is carried
The high heat absorption capacity of water, hot water（Boiling state）It is changed into drop and releases sensible heat, then absorbs flue gas heat, that is, can inhale
The latent heat for reaching saturation state is received, this makes it possible to absorb more heats, the heat absorption capacity of water is improve.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
In figure, 1- smoke inlets, 2- electric cleaners, 3- flash columns, 4- pulsed jet cloth filters, 5- water pumps, 6- valves, 7-
Atomizer, 8- heaters, 9- exhanst gas outlets, 10- unloading racks, 11- temperature monitors, 12- single-chip microcomputers, 13- flowmeters.
Specific embodiment
The utility model is described in further detail with reference to specific embodiment, but protection domain of the present utility model is not
It is limited to content as described below.
Embodiment 1
The device that arsenical fume water flashes dry method arsenic removal is smelted described in the present embodiment, as shown in figure 1, including electric cleaner 2,
Flash column 3, pulsed jet cloth filter 4, water pump 5, valve 6, atomizer 7, heater 8, unloading rack 10, temperature monitor 11, list
Piece machine 12, flowmeter 13；Smoke inlet 1 is arranged on the bottom of electric cleaner 2, and electric cleaner 2 includes two electric fields and two insulation
Seed cell, the insulator chamber on the top of electric cleaner 2 is provided with exhanst gas outlet and is connected with flash column 3, and atomizer is provided with inside flash column 3
7, atomizer 7 is connected with heater 8, and heater 8 and water pump 5 are connected, and water pump 5 is provided with valve 6 and temperature monitor 11, temperature
The exhanst gas outlet also respectively with the bottom of flash column 3 of monitor 11, single-chip microcomputer 12 are connected, and single-chip microcomputer 12 is connected with flowmeter 13, stream
Gauge 13 includes flow detection unit and flow controlling unit, is CMFI types Coriolis mass flowmeter purchased in market, flowmeter 13 with
Valve 6 is connected, and the bottom exhanst gas outlet connection pulsed jet cloth filter 4 of flash column 3, sack cleaner 4 is provided with exhanst gas outlet 9,
The bottom of electric cleaner 2 is provided with 4 dischargers, and each electric field lower section is equipped with two, and the bottom of flash column 3 is provided with a discharger,
The bottom of pulsed jet cloth filter 4 is provided with a discharger 10.
Carry out smelting the method that arsenical fume water flashes dry method arsenic removal using described device, flue gas is refined for oxygen bottom blown converter
Copper arsenical fume, exhaust gas volumn 65000Nm3/ h, is 350 DEG C from waste heat boiler exit gas temperature, is comprised the following steps that：
（1）In the electric cleaner 4 that oxygen bottom blown converter copper metallurgy arsenical fume is entered into dual field from smoke inlet 1, in electricity
By Ni metal, Fe, Zn, Pb, and SiO under field action2、CaO、 MgO、 Al2O3Etc. nonmetallic and metal oxide solid thing
To recovery in the discharger of the bottom of electric cleaner 2 after collecting, flue-gas temperature is about 320 DEG C, into flash column 3；
（2）Step（1）Flue gas enter flash column 3 after, water is forced into 0.3Mpa by water pump 5, is extracted into heater 8, will
Water temperature is improved to 136 DEG C, and water is in fluidized state, is atomized by atomizer 7 after water heating, and the size of droplet is less than after water atomization
100 μm, water from fluidized state be changed into droplet after volume become big, release a small amount of heat, the droplet after atomization connects with the flue gas of entrance
Touch, flue-gas temperature is high, the amount of heat that droplet absorbs flue gas release is changed into vapor, and flue-gas temperature drops to 270 from 320 DEG C
DEG C, flue-gas temperature is rapidly reduced to 120 DEG C after water smoke evaporates, and vapour content is improved in flue gas, arsenic trioxide crystal
Little particle separate out, water is steam condition in flash column 3, will not be condensed, thus arsenic trioxide crystal little particle will not grow up and
It is trapped in flash column, but as flue gas stream enters pulsed jet cloth filter 4, now the dew point temperature of sulfur dioxide in flue gas
It is 69~70 DEG C to spend, and sulfur dioxide will not condense condensation, and phase transformation temperature pointses are in miscellaneous between 120-320 DEG C in temperature-fall period
Qualitative change is brought together while being solid-state, larger heavy particle is formed, in the latter half of flash column 3 by gravity and centrifugation
The effect of power into the bottom of flash column 3 discharger so as to be removed, complete a 3-stage dust-removal process, increase flash column 3
The purity of arsenic trioxide in exit flow, realizes and reaches gas-liquid separation, solid phase by temperature controlled effect with flash column
The effect of purifying, flue gas of the temperature monitor 11 to flash column 3 out is monitored, if flue-gas temperature is not reaching to require,
Then signal is fed back to single-chip microcomputer 12 by temperature monitor 11, and the control flowmeter 13 of single-chip microcomputer 12 carrys out the size of the opening of control valve 6,
Then water is controlled to adjust caloric receptivity；
（3）Step（2）Flue gas after cooling enters pulsed jet cloth filter 4, flue gas cool-down, crystal arsenic trioxide particle
Directly it is trapped within cloth bag, the flue gas after arsenic removal is sent to sulfate system relieving haperacidity from the discharge of exhanst gas outlet 9.
The removal efficiency of arsenic reaches 97% in the present embodiment flue gas, and the arsenic trioxide crystal purity for obtaining reaches 99%.
Embodiment 2
Carry out smelting the method that arsenical fume water flashes dry method arsenic removal using the described device of embodiment 1, flue gas is special Nolan
Oxygen-enriched air blast copper metallurgy flue gas, exhaust gas volumn 55000Nm3/ h, is 350 DEG C from waste heat boiler exit gas temperature, and specific steps are such as
Under：
（1）In the electric cleaner 4 that oxygen bottom blown converter copper metallurgy arsenical fume is entered into dual field from smoke inlet 1, in electricity
By Ni metal, Fe, Zn, Pb, and SiO under field action2、CaO、 MgO、 Al2O3Etc. nonmetallic and metal oxide solid thing
After collecting, reclaimed in the discharger of the bottom of electric cleaner 2, flue-gas temperature is about 330 DEG C, into flash column 3；
（2）Step（1）Flue gas enter flash column 3 after, water is forced into 0.35Mpa by water pump 5, is extracted into heater 8, will
Water temperature is improved to 140 DEG C, and water is in fluidized state, is atomized by atomizer 7 after water heating, and the size of droplet is less than after water atomization
80 μm, water from fluidized state be changed into droplet after volume become big, release a small amount of heat, the droplet after atomization connects with the flue gas of entrance
Touch, flue-gas temperature is high, droplet absorbs amount of heat and is changed into vapor, flue-gas temperature is dropped into 280 DEG C from 330 DEG C, by water
Flue-gas temperature is rapidly reduced to 125 DEG C after mist evaporation, and vapour content is improved in flue gas, separates out arsenic trioxide small crystals,
Water is steam condition in flash column 3, will not be condensed, so arsenic trioxide small crystals will not grow up is trapped in flash column, with
Air-flow into pulsed jet cloth filter 4, and now flue gas dew point temperature is 69~70 DEG C, sulfur dioxide will not condense condensation,
The impurity being between 125-330 DEG C in phase transformation temperature pointses in temperature-fall period is brought together while being changed into solid-state, is formed
Larger heavy particle, the latter half of flash column 3 by the effect of gravity and centrifugal force enter the discharger of the bottom of flash column 3 from
And be removed, a 3-stage dust-removal process is completed, the purity of arsenic trioxide in the exit flow of flash column 3 is increased, realize
Gas-liquid separation, solid-phase purified effect are reached by temperature controlled effect with flash column, temperature monitor 11 goes out to flash column 3
The flue gas for coming is monitored, if flue-gas temperature is not reaching to require that signal is fed back to single-chip microcomputer 12 by temperature monitor 11,
The control flowmeter 13 of single-chip microcomputer 12 carrys out the size of the opening of control valve 6, then controls water to adjust caloric receptivity；
（3）Step（2）Flue gas after cooling enters pulsed jet cloth filter 4, flue gas cool-down, crystal arsenic trioxide particle
Directly it is trapped within cloth bag, the flue gas after arsenic removal is sent to sulfate system relieving haperacidity from the discharge of exhanst gas outlet 9.
The removal efficiency of arsenic reaches 98% in the present embodiment flue gas, and the arsenic trioxide crystal purity for obtaining reaches 99%.
Embodiment 3
Embodiment described device, including electric cleaner 2, flash column 3, pulsed jet cloth filter 4, water pump 5, valve 6, atomization
Device 7, unloading rack 10, temperature monitor 11, single-chip microcomputer 12, flowmeter 13；Smoke inlet is arranged on the bottom of electric cleaner 2, and electricity is removed
Dirt device 2 includes two electric fields and two insulator chambers, and the insulator chamber on the top of electric cleaner 2 is provided with exhanst gas outlet and and flash column
3 connections, are provided with atomizer 7 inside flash column 3, atomizer 7 is connected with water pump 5, and water pump 5 is provided with valve 6 and temperature monitor
11, the exhanst gas outlet also respectively with the bottom of flash column 3 of temperature monitor 11, single-chip microcomputer 12 are connected, single-chip microcomputer 12 and flowmeter 13
Connection, flowmeter 13 includes flow detection unit and flow controlling unit, is CMFI types Coriolis mass flowmeter purchased in market, flow
Meter 13 is connected with valve 6, and the bottom exhanst gas outlet connection pulsed jet cloth filter 4 of flash column 3, sack cleaner 4 is provided with flue gas
Outlet 9, the bottom of electric cleaner 2 is provided with 4 dischargers, and each electric field lower section is equipped with two, and the bottom of flash column 3 is provided with one and unloads
Glassware, the bottom of pulsed jet cloth filter 4 is provided with a discharger 10.
Carry out smelting the method that arsenical fume water flashes dry method arsenic removal using described device, flue gas is that top blast submerges smelting,
45000~5500Nm of oxygen-enriched air blast exhaust gas volumn3/ h, is 340~350 DEG C from waste heat boiler exit gas temperature, and specific steps are such as
Under：
（1）In the electric cleaner 4 that oxygen bottom blown converter copper metallurgy arsenical fume is entered into dual field from smoke inlet 1, in electricity
By Ni metal, Fe, Zn, Pb, and SiO under field action2、CaO、 MgO、 Al2O3Etc. nonmetallic and metal oxide solid thing
After collecting, reclaimed in the discharger of the bottom of electric cleaner 2, flue-gas temperature is about 330 DEG C, into flash column 3；
（2）Step（1）Flue gas enter flash column 3 after, using the hot water of the waste heat boiler of 1.0Mpa, the heat of waste heat boiler
175~180 DEG C of coolant-temperature gage, water is in fluidized state, and water is 7850~7950kg/h, and hot water is dropped to by pressure after water pump
0.32MPa, boiling water temperature accordingly drops to 140 DEG C, and now water need not be heated, according to flue gas exit temperature, control
Water, the water of boiling suppresses atomizer 7 by water pump 5 carries out atomization and vaporization, and the pressure for entering the water of water pump is 0.32Mpa, water temperature
133 DEG C or so of near its boiling point, is atomized the size of droplet after device 7 is atomized less than 70 μm, after water is changed into droplet from fluidized state
Volume becomes greatly, releases a small amount of heat, and flue-gas temperature is higher than droplet, and absorbing amount of heat by droplet after water smoke evaporation is changed into water steaming
Gas, flue-gas temperature is rapidly reduced to 130 DEG C, and vapour content is improved in flue gas, separates out arsenic trioxide small crystals, flash column
Water is steam condition in 3, will not be condensed, so arsenic trioxide small crystals will not grow up is trapped in flash column, with air-flow
Into pulsed jet cloth filter 4, and now flue gas dew point temperature is 69~70 DEG C, and sulfur dioxide will not condense condensation, meet cigarette
Requirement of the gas to temperature, while the impurity being between 130-330 DEG C in phase transformation temperature pointses in temperature-fall period is changed into solid-state
It is brought together, forms larger heavy particle, flash column is entered by the effect of gravity and centrifugal force in the latter half of flash column 3
The discharger of 3 bottoms completes a 3-stage dust-removal process so as to be removed, and increases three oxidations two in the exit flow of flash column 3
The purity of arsenic, realizes and reaches gas-liquid separation, solid-phase purified effect, temperature monitoring by temperature controlled effect with flash column
Flue gas of the instrument 11 to flash column 3 out is monitored, if flue-gas temperature is not reaching to require that temperature monitor 11 is by signal
Single-chip microcomputer 12 is fed back to, the control flowmeter 13 of single-chip microcomputer 12 carrys out the size of the opening of control valve 6, then controls water to adjust suction
Heat；
（3）Step（2）Flue gas after cooling enters pulsed jet cloth filter 4, flue gas cool-down, crystal arsenic trioxide particle
Directly it is trapped within cloth bag, the flue gas after arsenic removal is sent to sulfate system relieving haperacidity from the discharge of exhanst gas outlet 9.
The removal efficiency of arsenic reaches 99% in the present embodiment flue gas, and the arsenic trioxide crystal purity for obtaining reaches 99%.
Claims (2)
1. it is a kind of to smelt the device that arsenical fume water flashes dry method arsenic removal, it is characterised in that including electric cleaner, flash column, arteries and veins
Rush sack cleaner, water pump, valve, atomizer, unloading rack, temperature monitor, single-chip microcomputer, flowmeter；Smoke inlet is arranged on
Electric cleaner bottom, electric cleaner includes two electric fields and two insulator chambers, and the insulator chamber on electric cleaner top is provided with cigarette
Gas is exported and is connected with flash column, and atomizer is provided with inside flash column, and atomizer and water pump are connected, and water pump is provided with valve and temperature
Degree monitor, temperature monitor exhanst gas outlet also respectively with flash column bottom, single-chip microcomputer be connecteds, single-chip microcomputer and flowmeter company
Connect, flowmeter is connected with valve, flash column bottom exhanst gas outlet connection pulsed jet cloth filter, sack cleaner is provided with flue gas
Outlet, electric cleaner, flash column, pulsed jet cloth filter bottom are equipped with discharger.
2. the device that arsenical fume water flashes dry method arsenic removal is smelted according to claim 1, it is characterised in that atomizer and water
Heater is provided between pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621143064.8U CN206198735U (en) | 2016-10-21 | 2016-10-21 | It is a kind of to smelt the device that arsenical fume water flashes dry method arsenic removal |
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|---|---|---|---|
| CN201621143064.8U CN206198735U (en) | 2016-10-21 | 2016-10-21 | It is a kind of to smelt the device that arsenical fume water flashes dry method arsenic removal |
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| CN201621143064.8U Withdrawn - After Issue CN206198735U (en) | 2016-10-21 | 2016-10-21 | It is a kind of to smelt the device that arsenical fume water flashes dry method arsenic removal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377922A (en) * | 2016-10-21 | 2017-02-08 | 昆明理工大学 | Device and method for dearsenifying smelting arsenic-containing flue gas water by flash distillation dry process |
-
2016
- 2016-10-21 CN CN201621143064.8U patent/CN206198735U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377922A (en) * | 2016-10-21 | 2017-02-08 | 昆明理工大学 | Device and method for dearsenifying smelting arsenic-containing flue gas water by flash distillation dry process |
| CN106377922B (en) * | 2016-10-21 | 2019-07-16 | 昆明理工大学 | A kind of device and method for smelting the flash distillation dry method arsenic removal of arsenical fume water |
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