CN104645763B - Indium refinery-off gas administering method - Google Patents
Indium refinery-off gas administering method Download PDFInfo
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- CN104645763B CN104645763B CN201410167434.0A CN201410167434A CN104645763B CN 104645763 B CN104645763 B CN 104645763B CN 201410167434 A CN201410167434 A CN 201410167434A CN 104645763 B CN104645763 B CN 104645763B
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Abstract
The invention discloses a kind of indium refinery-off gas administering method, is related to waste gas pollution control and treatment technical field, using a kind of indium refinery-off gas controlling device, operating procedure includes：A, pending waste gas is collected by being located at the air-suction cover above multiple pots；B, pending waste gas will be collected by exhaust duct input filter, adsorption treatment is carried out to waste gas using the filtering material in filter；C, spray washing process and cooling are carried out using the aqueous solution in one-level spray scrubber to the gas for completing adsorption treatment process；D, using the activated carbon in activated carbon adsorber to washing cooling after gas carry out charcoal absorption process；E, spray washing is carried out to the gas for completing charcoal absorption process using the cleaning solution in two grades of spray scrubbers and processes completing the improvement of indium refinery-off gas.Compared with prior art, the waste gas that the present invention is produced in absorbing indium refining process, the gas after improvement meet the relevant regulations of country's discharge, can be directly discharged in air.
Description
Technical field
The present invention relates to waste gas pollution control and treatment technical field, especially a kind of improvement for producing waste gas in indium refining process
Method.
Background technology
Indium refining is one of important step of indium ingot ingot casting production, and smart indium refining is the mistake for purifying low-purity finished product indium
Journey；It is placed in the pot of molten indium pot by the low-purity finished product indium by electrolysis out, adds glycerine, KI, sal-ammoniac etc.
Organic solvent and inolrganic chemicals are refined with finished product indium, make indium cast high-purity after separating with impurity in the molten state
Indium ingot；But indium is in molten indium pot heating refining process, can produce a large amount of by gases such as glycerine, iodine vapor, hydrogen chloride and ammonias
The waste gas of mixing composition, the governance approach for refining generation waste gas at present to indium are pacified on the factory building wall for laying multiple molten indium pots
The exhaust duct of air exhauster is equiped with, discharge waste gas is directed out by exhaust duct.As waste gas is directed out discharge, these give up
Gas volatilize in atmosphere disperse produce foul odour, can not only endanger the health of operator, can also cause severe contamination to environment.
The content of the invention
It is an object of the invention to provide a kind of indium refinery-off gas administering method, with solve in existing indium refining process directly to
Outer discharge problem of the waste gas to environment.
In order to solve the above problems, the technical solution used in the present invention is：A kind of indium refinery-off gas administering method, uses one
Indium refinery-off gas controlling device is planted, the indium refinery-off gas controlling device includes multiple molten indium pots and exhaust duct for being provided with pot,
Be equipped with an air-suction cover connected with the exhaust duct above multiple pots, the exhaust duct by filter with
The air inlet of one-level spray scrubber is connected, the gas outlet of the one-level spray scrubber and the air inlet of activated carbon adsorber
It is connected, the gas outlet of the activated carbon adsorber is connected with the air inlet of two grades of spray scrubbers by centrifugal blower；
Operating procedure includes：
A, pending waste gas is collected by being located at the air-suction cover above multiple pots；
B, pending waste gas will be collected the filter is input into by the exhaust duct, using in the filter
Filtering material carries out adsorption treatment to waste gas；
C, the gas for completing adsorption treatment is carried out at spray washing using the aqueous solution in the one-level spray scrubber
Reason and cooling are processed；
D, using the activated carbon in the activated carbon adsorber to washing cooling after gas carry out charcoal absorption process；
E, using the cleaning solution in two grades of spray scrubbers to complete charcoal absorption process gas spray
Carrying out washing treatment completes the improvement of indium refinery-off gas.
In above-mentioned technical proposal, more specifically technical scheme is：The filtering material in step B is synthetic fibers nonwoven
Cloth；The cleaning solution in E steps is the sodium hydroxide solution that concentration is 0.25mol/L～1.25mol/L.
Further, in the indium refinery-off gas controlling device the one-level spray scrubber and two grades of sprays is washed
Wash tower to include cylinder and be located at the liquid reserve tank of the cylinder body bottom；The cylinder is divided into by the dividing plate with through hole
Spray chamber and lower spray chamber, are equipped with the shower tray being sequentially communicated by water pipe on the top of each spray chamber, in each spray
Adsorption stuffing is equipped with below the indoor shower tray, water pump and institute are passed through by the shower tray that water pipe is sequentially communicated
State liquid reserve tank connection；The air inlet of the one-level spray scrubber and two grades of spray scrubbers is each provided at the liquid reserve tank
The gas outlet of top, the one-level spray scrubber and two grades of spray scrubbers is each provided at the top of the cylinder.
As a result of above-mentioned technical proposal, the present invention is had the advantages that compared with prior art：Due in indium
Refining process is administered to the waste gas that indium refining process is produced using a kind of indium refinery-off gas controlling device of crossing, first by molten essence
The waste gas that refining is produced is collected, and passes sequentially through filter the waste gas of collection is carried out adsorption treatment and remove smoke abatement and water smoke, leads to
The aqueous solution for crossing one-level spray scrubber reduces EGT to gas shower washing, is gone by activated carbon adsorber adsorption treatment
Stench, the odor molecules poisoned in removing exhaust gas, will be smelly in waste gas gas phase by the washing of two grades of spray scrubber detergent
Taste composition is transferred to liquid phase, wherein concentration for the sodium hydroxide solution of 0.25mol/L～1.25mol/L detergent and stink into
The stench smell substance that the raw neutralization of distribution and chemical reaction are gone in removing exhaust gas；Gas after improvement meets the related rule of country's discharge
It is fixed, can be directly discharged in air, eliminate waste gas pollution on the environment.
Description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of the one-level spray scrubber of the present invention.
Fig. 3 is the structural representation of two grades of spray scrubbers of the present invention.
Specific embodiment
The invention will be further described for embodiment below in conjunction with the accompanying drawings：
Embodiment 1：
A kind of indium refinery-off gas administering method, using indium refinery-off gas controlling device as shown in Figure 1, the indium refinery-off gas
Controlling device includes three molten indium pots and exhaust duct 3 for being provided with pot 1, and the present embodiment is in the top of three molten indium pot pots 1
It is equipped with an air-suction cover 2 connected with exhaust duct 3 by pipeline, air inlet 401 of the exhaust duct 3 by pipe-and-filter 4
It is connected, the gas outlet 402 of filter 4 is connected with the air inlet 501 of one-level spray scrubber 5 by pipeline, one-level spray
The gas outlet 502 of scrubbing tower 5 is connected with the air inlet 701 with activated carbon adsorber 7 by pipeline, activated carbon adsorber 7
Gas outlet 702 is connected with the air inlet 901 of two grades of spray scrubbers 9 by centrifugal blower 8, in activated carbon adsorber 4 and two
Volume damper 6 is connected with by pipeline between the air inlet 901 of level spray scrubber 9, is adjusted according to the condition of production of molten indium pot
The aperture of section regulating valve 6.One-level spray scrubber 5 as shown in Figure 2 includes cylinder 506 and is mounted in the storage of 506 bottom of cylinder
Liquid case 505, fills the aqueous solution used by scrubbing exhaust gas in liquid reserve tank 505；Cylinder 506 respectively by two pieces with multiple through holes every
Plate 511 is divided into spray chamber and lower spray chamber, the top of upper spray chamber and lower spray chamber be respectively provided with by water pipe according to
The upper shower tray 510 of secondary connection and lower shower tray 508, below the indoor upper shower tray 510 of upper spray and lower spray it is indoor and
Adsorption stuffing is respectively arranged with below lower shower tray 508；The upper shower tray 510 and lower shower tray 508 being sequentially communicated by water pipe is passed through
The water pipe connected with water inlet 503 is connected with water pump 12, and water pump 12 is connected with the delivery port 504 of liquid reserve tank 505 by water pipe；One
The air inlet 501 of level spray scrubber is arranged on the top of liquid reserve tank 505, and the gas outlet 502 of one-level spray scrubber is arranged on
The top of cylinder 506.
Two grades of spray scrubbers 9 as shown in Figure 3 include cylinder 906 and are mounted in the liquid reserve tank 905 of 906 bottom of cylinder,
The NaOH washing liquid used by scrubbing exhaust gas is filled in liquid reserve tank 905；Cylinder 906 respectively by two pieces with multiple through holes every
Plate 911 is divided into spray chamber and lower spray chamber, the top of upper spray chamber and lower spray chamber be respectively provided with by water pipe according to
The upper shower tray 910 of secondary connection and lower shower tray 908, below the indoor upper shower tray 910 of upper spray and lower spray it is indoor and
Adsorption stuffing is respectively arranged with below lower shower tray 908；The upper shower tray 910 and lower shower tray 908 being sequentially communicated by water pipe is passed through
The water pipe connected with water inlet 903 is connected with water pump 10, and water pump 10 is connected with the delivery port 904 of liquid reserve tank 905 by water pipe, storage
Detergent in liquid case 905 is the sodium hydroxide solution that concentration is 0.25mol/L；The air inlet 901 of two grades of spray scrubbers is pacified
The top of liquid reserve tank 905 is mounted in, the gas outlet 902 of two grades of spray scrubbers is arranged on the top of cylinder 906.
Indium refinery-off gas administer operating procedure to be included：
A, pending waste gas is collected by being mounted in the air-suction cover 2 above three pots 1；
B, pending waste gas will be collected by 3 input filter 4 of exhaust duct, using the filter material in filter 4
Material carries out adsorption treatment to waste gas, and the filtering material of the present embodiment is non-woven fabrics of synthetic fiber；
C, the gas for completing adsorption treatment is carried out using the aqueous solution in one-level spray scrubber 5 spray washing process and
Cooling is processed；
D, using the activated carbon in activated carbon adsorber 7 to washing cooling after gas carry out charcoal absorption process；
E, the sodium hydroxide solution using the concentration in two grades of spray scrubbers 9 for 0.25mol/L are inhaled to completing activated carbon
The gas of attached process carries out spray washing and processes the improvement for completing indium refinery-off gas.
Embodiment 2：
Detergent in liquid reserve tank 905 is the sodium hydroxide solution that concentration is 0.25mol/L；Other features and embodiment 1
It is identical.
Indium refinery-off gas administer operating procedure to be included：
A, pending waste gas is collected by being mounted in the air-suction cover 2 above three pots 1；
B, pending waste gas will be collected by 3 input filter 4 of exhaust duct, using the filter material in filter 4
Material carries out adsorption treatment to waste gas, and the filtering material of the present embodiment is non-woven fabrics of synthetic fiber；
C, the gas for completing adsorption treatment is carried out using the aqueous solution in one-level spray scrubber 5 spray washing process and
Cooling is processed；
D, using the activated carbon in activated carbon adsorber 7 to washing cooling after gas carry out charcoal absorption process；
E, the sodium hydroxide solution using the concentration in two grades of spray scrubbers 9 for 0.25mol/L are inhaled to completing activated carbon
The gas of attached process carries out spray washing and processes the improvement for completing indium refinery-off gas.
Claims (3)
1. a kind of indium refinery-off gas administering method, it is characterised in that：
Using a kind of indium refinery-off gas controlling device, the indium refinery-off gas controlling device is included and multiple is provided with pot（1）It is molten
Indium pot and exhaust duct（3）, in multiple pots（1）Top be equipped with one with the exhaust duct（3）The air-suction cover of connection
（2）, the exhaust duct（3）By filter（4）With one-level spray scrubber（5）Air inlet be connected, one-level spray
Scrubbing tower（5）Gas outlet and activated carbon adsorber（7）Air inlet be connected, the activated carbon adsorber（7）Gas outlet
By centrifugal blower（8）With two grades of spray scrubbers（9）Air inlet be connected；
Operating procedure includes：
A, by being located at multiple pots（1）The air-suction cover of top（2）Collect pending waste gas；
B, pending waste gas will be collected by the exhaust duct（3）It is input into the filter（4）, using the filter
（4）Interior filtering material carries out adsorption treatment to waste gas；
C, using the one-level spray scrubber（5）In the aqueous solution spray washing process is carried out to the gas for completing adsorption treatment
Process with cooling；
D, using the activated carbon adsorber（7）Interior activated carbon carries out charcoal absorption process to the gas after washing cooling；
E, using two grades of spray scrubbers（9）In cleaning solution the gas for completing charcoal absorption process is carried out by spray is washed
Wash and process the improvement for completing indium refinery-off gas.
2. indium refinery-off gas administering method according to claim 1, it is characterised in that：The filtering material in step B
For non-woven fabrics of synthetic fiber；The cleaning solution in E steps is that the NaOH that concentration is 0.25mol/L～1.25mol/L is molten
Liquid.
3. indium refinery-off gas administering method according to claim 1, it is characterised in that：The indium refinery-off gas controlling device
In the one-level spray scrubber and two grades of spray scrubbers include and cylinder and be located at the storage of the cylinder body bottom
Liquid case；The cylinder is divided into upper spray chamber and lower spray chamber by the dividing plate with through hole, equal on the top of each spray chamber
The shower tray being sequentially communicated by water pipe is provided with, and adsorption stuffing is equipped with below the indoor shower tray of each spray,
Connected with the liquid reserve tank by water pump by the shower tray that water pipe is sequentially communicated；The one-level spray scrubber and described
The air inlet of two grades of spray scrubbers is each provided at the top of the liquid reserve tank, the one-level spray scrubber and two grades of sprays
The gas outlet of scrubbing tower is each provided at the top of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410167434.0A CN104645763B (en) | 2014-04-24 | 2014-04-24 | Indium refinery-off gas administering method |
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| CN201410167434.0A CN104645763B (en) | 2014-04-24 | 2014-04-24 | Indium refinery-off gas administering method |
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| CN104645763A CN104645763A (en) | 2015-05-27 |
| CN104645763B true CN104645763B (en) | 2017-04-05 |
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| CN105169894A (en) * | 2015-07-21 | 2015-12-23 | 天津霍普环保科技有限公司 | Sulfur-containing exhaust gas disposal system |
| CN108355459A (en) * | 2017-12-08 | 2018-08-03 | 中国电子科技集团公司第十三研究所 | The processing unit of gas soot dust granule tail gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AT402264B (en) * | 1995-09-07 | 1997-03-25 | Austrian Energy & Environment | METHOD AND DEVICE FOR WET SEPARATION OF ACID GASES |
| CN202224049U (en) * | 2011-09-15 | 2012-05-23 | 常州天兴环保科技有限公司 | Acid and hydrocarbon mixed waste gas treatment equipment |
| CN202538579U (en) * | 2012-03-09 | 2012-11-21 | 贝格工业涂料（广州）有限公司 | Industrial coating waste gas treatment system |
| CN202683025U (en) * | 2012-06-04 | 2013-01-23 | 遵化市北方锅炉有限公司 | Garbage incineration flue gas purification device |
| CN203139853U (en) * | 2013-01-31 | 2013-08-21 | 绍兴新宇环保设备有限公司 | Water spray purification tower |
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Effective date of registration: 20210928 Address after: 510700 public space office card booth B030 of youth home innovation and entrepreneurship incubation base, unit 1004, No. 182, science Avenue, Huangpu District, Guangzhou, Guangdong Province Patentee after: Guangzhou Hanpu Technology Co.,Ltd. Address before: 545212 No.1 Jian'an Road, Liutang Industrial Zone, Liutang Town, Liucheng County, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee before: GUANGXI YINTAI TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20221117 Address after: 510670 room 229, annex building, No. 111, Kexue Avenue, Huangpu District, Guangzhou City, Guangdong Province (office only) Patentee after: Hanwa Technology Co.,Ltd. Address before: 510700 public space office card booth B030 of youth home innovation and entrepreneurship incubation base, unit 1004, No. 182, science Avenue, Huangpu District, Guangzhou, Guangdong Province Patentee before: Guangzhou Hanpu Technology Co.,Ltd. |