CN203469764U - Device for purifying lead and cadmium-containing smoke by circulating absorbing method of sintering plate - Google Patents
Device for purifying lead and cadmium-containing smoke by circulating absorbing method of sintering plate Download PDFInfo
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- CN203469764U CN203469764U CN201320506240.XU CN201320506240U CN203469764U CN 203469764 U CN203469764 U CN 203469764U CN 201320506240 U CN201320506240 U CN 201320506240U CN 203469764 U CN203469764 U CN 203469764U
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Abstract
The utility model relates to a device for purifying lead and cadmium-containing smoke by a circulating absorbing method of a sintering plate, belonging to the technical field of environmental protection of the non-ferrous metal metallurgy industry. According to the device, by adopting powder body circulating fluidized absorption and sintering plate filtering dust removal and by combining air mixing, dividing wall, humidifying and cooling, harmful substances such as lead and cadmium are effectively removed and recycled. The device is capable of strictly ensuring that the emission of the harmful substances of lead and cadmium is far less than the national standard, avoids the historic technical problems of filtering material blockage, low efficiency and difficulty in treating wastewater by adopting a wet process technology of a conventional filtering type dust removal technology, is free of secondary pollution in a treatment process, accords with the development direction of environment protection and cyclic economy, and develops a new path for treating smoke containing nonferrous metals such as lead and cadmium.
Description
Technical field
The utility model relates to that a kind of sintered plate circulation absorption method is leaded, cadmium smoke eliminator, and particularly sintered plate circulation absorption method purifying lead-bearing, cadmium flue gas in non-ferrous metal metallurgy, belong to non-ferrous metal metallurgy industry environment resist technology field.
Background technology:
Production plumbous in coloured industry, cadmium element occupies an important position; development along with radioactive protection industry and electronics industry; demand plumbous, cadmium element constantly increases; industry also development expands; because plumbous, cadmium are the elements that a kind of toxic is larger, industry related to this is polluted the environmental protection social concern that also becomes country and social concerns.
Due to lead, the fusing point of cadmium element and boiling point are lower 300～500 ℃, in high melt or subtractive process, gas phase volatilization composition is larger, and with quite thin aerosol even gaseous state thing exist, especially because raw material is brought into and to have added many in technological requirement as burn acid in order to meet, alkali, rosin, the reason of the additives such as wood carbon, make exhaust gas components more complicated, in gas, remove metallic lead, outside cadmium steam, the acid that contains respective numbers, alkali, steam, rosin and other organic gas and dust, because the harmfulness of this flue gas is large, must carry out purified treatment.But due to flue-gas temperature is high and complicated this will increase greatly gas cleaning difficulty and technology and equipment dependability, the technical method that adopted is before this mainly to adopt filtering type dry method dust and two kinds of techniques of water spray wet cleaning, in adopting filtering type dry dedusting technology due to gas in metal aerosol, acid, alkaline matter and organic condensing and the effect of separating out in filter opening of bonding and metal gas, make filtration dust catcher often stop up and cannot repair, equipment can not guarantee long-term normal operation, and outlet dust concentration is far above more than national standard decades of times, cannot reach management goal.And wet processing is to make the method washing with water that above material is proceeded to the process in water, on the one hand because particle in gas exists very thin hydrophily poor and have an entrainment with gas or aerosol mode, make purification efficiency be difficult to guarantee, it is very strict that waste water is arranged requirement outward on the other hand, technical sophistication and the difficulty of water treatment are larger, difficulty up to standard, and capital expenditure and production run expense large, be infeasible equally, therefore plumbous cadmium pollution also becomes historic the difficult problem of environmental protection of coloured industry.
Summary of the invention
The purpose of this utility model is to provide that a kind of sintered plate circulation absorption method is leaded, cadmium smoke eliminator, this device is to be mainly difficult to the lead effectively solving, the technical problem of cadmium gas cleaning in breakthrough solution tradition cleaning system, abundant analysis and judgement by exhaust gas components during plumbous, cadmium are smelted, adopted sintered plate circulation absorption method purifying lead-bearing, cadmium flue gas to realize the improvement to flue gas.
Technical solution:
The utility model comprises: flue, flue outlet is connected with fluidized adsorber air inlet, fluidized adsorber feed opening is connected with emptying feed bin by lock wind ash exhauster, on fluidized adsorber, gas outlet is connected with pre-powder collector air inlet by pipeline, pre-powder collector bottom cinder-discharging port is refluxed and is expected that charging aperture is connected by star-shaped dust-discharging valve and fluidized adsorber first, pre-powder collector gas outlet is connected with Sinter-plate Filter air inlet, between pre-powder collector and Sinter-plate Filter, be provided with mixer selector valve, Sinter-plate Filter gas outlet is connected with blower fan, Sinter-plate Filter bottom discharge mouth is connected with recovery feed bin by ash conveying device Yi road, revolving cinder conveyer separately leads up to pipeline and enters powder system, in powder system, be provided with blower fan, blower fan inflatable mouth is refluxed and is expected that charging aperture is connected by pipeline and fluidized adsorber second.
Described lock wind ash exhauster is double-deck gravity flap valve or star-shaped dust-discharging valve.
Described ash conveying device is spiral ash machine, air flume, chain-linked conveyer or air-transport system.
Described fluidized adsorber comprises housing, at least comprises an air inlet, two reflux material charging aperture, nozzle, air outlet, feed opening, air-cooled import, air-cooled outlets on housing, and housing is built-in with Wen's reactor, and Wen's reactor annular is distributed in housing.
The utility model has mainly comprised fluidized adsorber, pre-duster, the large nucleus equipment of Sinter-plate Filter three, wherein fluidized adsorber internal main will consist of compound venturi and fluidisation cylindrical shell, and with air-cooled and moistening function, absorption material powder adopts the recycling powder of production system, and adopt air-flow to carry automatic gauge mode to add mode, adsorbent can be used for enterprise's mineral smelting procedure after using, reaching evil is precious recycling object, this method and technology is reliably efficient, thereby breakthrough solution coloured industry plumbous, the improvement technical barrier of the efficient and rational economy of cadmium flue gas during smelting, after purifying, dust concentration is lower than 5mg/m
3, the content of poisonous metal lead and cadmium is lower than 0.8mg/m
3.
This invention technical characteristics is as follows:
1, adopt the ciculation fluidized adsorption method of powder to solve the insoluble technical barrier of conventional wet dry technique, realized without bonding, free from corrosion high effective flue gas purification process.
2, adopt high-efficiency sintered plate cleaner, guaranteed purification efficiency and and resistance to high load capacity and antistick characteristic and long-life and the reliability of operation of superelevation.
3, the enrichment by adsorbent can realize harmful substance and recycles.
4, the ciculation fluidized absorber adopting has direct and indirect cooling effect.
5, adopt humidification mode to increase absorption and coalescence effect, thereby improve the clean-up effect to acid, alkaline steam and organic harmful substance, and have stronger antiseized effect.
Various scheme contrast tables
| ? | Purification efficiency | Discharge concentration | International | Runnability | Remarks |
| Cloth bag dry cleaning | ＞90％ | ＞30mg/m 3 | ＜1mg/m 3 | Often stop up | ? |
| Wet cleaning | ＞90％ | ＞30mg/m 3 | ＜1mg/m 3 | Increase water treatment | ? |
| Sintered plate circulation absorption | ＞99％ | ＜1mg/m 3 | ＜1mg/m 3 | Steady in a long-term | ? |
Accompanying drawing explanation
Fig. 1 is a kind of embodiment structural representation of the utility model;
Fig. 2 is the utility model the second embodiment structural representation;
Fig. 3 is the third embodiment structural representation of the utility model.
The specific embodiment
Embodiment 1:
Referring to Fig. 1, equipment outer circulation
1) precentagewise is chosen the plumbous zinc ore powder of 150 objects 5% flyash 75%, diatomite 5%, talcum powder 15% mixture and is put into powder system 8 and stock;
2) in unlatching powder system 8, establishing blower fan sends into the absorption powder of solid, powdery in fluidized adsorber 3 and circulates in advance by induction system and by metering: 80Kg/h in fluidization mode, after this circulation 5-10min, opening air-introduced machine 6 makes flue gas enter flue 2 by exhaust fume collecting hood 1, from flue 2 outlets, enter fluidized adsorber 3, flue gas adsorbs, condenses, crash response with mixing and absorption powder in fluidized adsorber 3; Reacted powder enters emptying storehouse 10 because of the lock wind ash exhauster of gravity reason by fluidized adsorber 3 feed openings; Flue gas enters pre-powder collector 4 by gas outlet on fluidized adsorber 3, flue gas is removed percentage by weight 75% dust by centrifugal or Action of Gravity Field in preprocessor 4, the dust of collecting returns in fluidized adsorber 3 by the star-shaped dust-discharging valve of preprocessor 4 feed openings again, and the lighter exhaust gas dust of other percentage by weights 25% by pre-powder collector 4 gas outlets, mixer selector valve 13, enter Sinter-plate Filter 5, after high-precision filtration, clean gas enters blower fan 6 from Sinter-plate Filter 5 gas outlets and discharges by chimney 7; Dust is entered and is reclaimed feed bin 9 by ash conveying device Yi road by bottom discharge mouth, by another road of ash conveying device, enter powder system 8, in powder system 8, be provided with powder system blower fan, powder system blower fan inflatable mouth enters fluidized adsorber 3 by pipeline, carries out sorption cycle utilization.
3) under system is controlled, according to the difference of flue-gas temperature and humidity, by the mixed wind before fluidized adsorber 3 and spray humidification system, can control temperature in fluidized adsorber 1～70 ℃ and humidity 50～65%, when temperature is increased to 70 ℃, starts after above and mix wind system, after dropping to <70 ℃ of normal temperature, close, and also can start mixed wind system during higher than normal value 50～65% when humidity, the same, as use spray humidification system also to have it to control the effect of temperature and humidity, under the control of this mode, make Circulating absorber 3 guarantee the absorption of its best, coalescence and dust collection effect.By this process, purify in after funnel 7 dust concentration lower than 10mg/m
3, the content of poisonous metal lead and cadmium is lower than 8mg/m
3.
Embodiment 2
Referring to Fig. 2, pipeline outer circulation
1) precentagewise is chosen the plumbous zinc ore powder of 300 objects 5% flyash 75%, diatomite 5%, talcum powder 15% mixture and is put into powder system 8 and stock.
2) start system air-introduced machine 6, make flue gas respectively by exhaust fume collecting hood 1, flue 2, reaction tube 3, Sinter-plate Filter 5, by blower fan 6, by chimney 7, discharged.
3) by absorption powder according to the ratio with pollutant 7:1, by induction system, measure and send in reaction tube 3, powder has completed and has mixed and adsorption process with various pollutants in flue gas in reaction tube 3, then flue gas enters Sinter-plate Filter 5.
4) flue gas carries out degree of depth high-efficient purification in Sinter-plate Filter 5, the dust of part as required of collecting can return the interior continuation of reaction tube 3 and use, most of dust reclaimed materials 9 of collecting is back to production system and reuses, and flue gas passes through chimney 7 qualified discharges by air-introduced machine 6.
5) under system is controlled, mixed wind and spray humidification system 11 before absorber can be controlled the temperature and humidity in reaction tube, to guarantee absorption, coalescence and the dust collection effect of its best.
By this process, purify in after funnel 7 dust concentration lower than 10mg/m
3, the content of poisonous metal lead and cadmium is lower than 1mg/m
3.
Embodiment 3
Referring to circulating in Fig. 3 equipment
1) precentagewise is chosen the plumbous zinc ore powder of 260 objects 1% flyash 85%, diatomite 10%, talcum powder 4% mixture and is put into powder system 8 and stock.
2) start system air-introduced machine 6, make flue gas respectively by exhaust fume collecting hood 1, flue 2, Sinter-plate Filter 5, by blower fan 6, by chimney 7, discharged.
3) by absorption powder according to the ratio with pollutant 10:1, by induction system, measure and send in pipeline 2, powder has completed and has mixed and adsorption process with various pollutants in flue gas in pipeline 2, then flue gas enters Sinter-plate Filter 5.
4) flue gas through carrying out degree of depth high-efficient purification in Sinter-plate Filter 5, the small part dust of collecting falls on Sinter-plate Filter 5 ash bucket internal return devices 12, and form inner fluidisation ringing by pulse of compressed air effect, after most of absorption of collecting, dust reclaimed materials 9 is back to production system and reuses, and flue gas passes through chimney 7 qualified discharges by air-introduced machine 6.
5) under system is controlled, mixed wind and spray humidification system 11 before absorber can be controlled the temperature and humidity in fluidized adsorber, to guarantee absorption, coalescence and the dust collection effect of its best.By this process, purify in after funnel 7 dust concentration lower than 10mg/m
3, the content of poisonous metal lead and cadmium is lower than 1mg/m
3.
Claims (5)
1. sintered plate circulation absorption method is leaded, cadmium smoke eliminator, comprise: flue (2), it is characterized in that, flue (2) outlet is connected with fluidized adsorber (3) air inlet, fluidized adsorber (3) feed opening is connected with emptying feed bin (10) by lock wind ash exhauster, the upper gas outlet of fluidized adsorber (3) is connected with pre-powder collector (4) air inlet by pipeline, pre-powder collector (4) bottom cinder-discharging port is refluxed and is expected that charging aperture is connected by star-shaped dust-discharging valve and fluidized adsorber (3) first, pre-powder collector (4) gas outlet is connected with Sinter-plate Filter (5) air inlet, Sinter-plate Filter (5) gas outlet is connected with blower fan, Sinter-plate Filter (5) bottom discharge mouth is connected with recovery feed bin (9) by ash conveying device Yi road, revolving cinder conveyer separately leads up to pipeline and enters powder system (8), powder system is provided with blower fan in (8), blower fan inflatable mouth is refluxed and is expected that charging aperture is connected by pipeline and fluidized adsorber (3) second.
2. leaded, the cadmium smoke eliminator of sintered plate circulation absorption method according to claim 1, is characterized in that, lock wind ash exhauster is double-deck gravity flap valve or star-shaped dust-discharging valve.
3. leaded, the cadmium smoke eliminator of sintered plate circulation absorption method according to claim 1, is characterized in that, ash conveying device is spiral ash machine, air flume, chain-linked conveyer or air-transport system.
4. leaded, the cadmium smoke eliminator of sintered plate circulation absorption method according to claim 1, it is characterized in that, fluidized adsorber (3) comprises housing, on housing, at least comprise an air inlet, two reflux material charging aperture, nozzle, air outlet, feed opening, air-cooled import, air-cooled outlets, housing is built-in with Wen's reactor, and Wen's reactor annular is distributed in housing.
5. leaded, the cadmium smoke eliminator of sintered plate circulation absorption method according to claim 1, is characterized in that, between pre-powder collector (4) and Sinter-plate Filter (5), is provided with mixer selector valve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320506240.XU CN203469764U (en) | 2013-08-19 | 2013-08-19 | Device for purifying lead and cadmium-containing smoke by circulating absorbing method of sintering plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320506240.XU CN203469764U (en) | 2013-08-19 | 2013-08-19 | Device for purifying lead and cadmium-containing smoke by circulating absorbing method of sintering plate |
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| Publication Number | Publication Date |
|---|---|
| CN203469764U true CN203469764U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320506240.XU Expired - Fee Related CN203469764U (en) | 2013-08-19 | 2013-08-19 | Device for purifying lead and cadmium-containing smoke by circulating absorbing method of sintering plate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103446876A (en) * | 2013-08-19 | 2013-12-18 | 内蒙古森鼎环保节能股份有限公司 | Process and device for purifying flue gas containing lead and cadmium by adopting sintered plate circulation adsorption method |
| CN106110871A (en) * | 2016-08-01 | 2016-11-16 | 史汉祥 | The processing system of a kind of volatile organic gas and method |
| CN108126431A (en) * | 2017-12-14 | 2018-06-08 | 杭州南方环境净化设备有限公司 | Non-ferrous metal metallurgy toxic metal steam smoke collecting device and method |
| CN108283861A (en) * | 2018-04-10 | 2018-07-17 | 广东盛迎低碳技术研究有限公司 | A kind of waste gas treatment equipment with pretreating device |
-
2013
- 2013-08-19 CN CN201320506240.XU patent/CN203469764U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103446876A (en) * | 2013-08-19 | 2013-12-18 | 内蒙古森鼎环保节能股份有限公司 | Process and device for purifying flue gas containing lead and cadmium by adopting sintered plate circulation adsorption method |
| CN103446876B (en) * | 2013-08-19 | 2016-05-25 | 内蒙古森鼎环保节能股份有限公司 | Technique and the device thereof of sintered plate circulation absorption method purifying lead-bearing, cadmium flue gas |
| CN106110871A (en) * | 2016-08-01 | 2016-11-16 | 史汉祥 | The processing system of a kind of volatile organic gas and method |
| CN108126431A (en) * | 2017-12-14 | 2018-06-08 | 杭州南方环境净化设备有限公司 | Non-ferrous metal metallurgy toxic metal steam smoke collecting device and method |
| CN108126431B (en) * | 2017-12-14 | 2024-05-28 | 杭州南方环境净化设备有限公司 | Non-ferrous metal smelting toxic metal steam smoke dust collecting device and method |
| CN108283861A (en) * | 2018-04-10 | 2018-07-17 | 广东盛迎低碳技术研究有限公司 | A kind of waste gas treatment equipment with pretreating device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20160819 |
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| CF01 | Termination of patent right due to non-payment of annual fee |