CN201852476U - Wet dust removal device of Kaldo furnace - Google Patents
Wet dust removal device of Kaldo furnace Download PDFInfo
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- CN201852476U CN201852476U CN2010205938542U CN201020593854U CN201852476U CN 201852476 U CN201852476 U CN 201852476U CN 2010205938542 U CN2010205938542 U CN 2010205938542U CN 201020593854 U CN201020593854 U CN 201020593854U CN 201852476 U CN201852476 U CN 201852476U
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- dehydrator
- venturi scrubber
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model belongs to the field of environmental protection and dust removal, and discloses a device ensuring that flue gas of a Kaldo furnace directly enters a wet dust removal device to perform temperature reduction and dust removal. The device is connected with the Kaldo furnace (1) through a cooling flue (2), and comprises a compensator (3), a venturi dust remover (4), a water atomization system (5), a hydraulic servo device (6) and a dehydrater (8) which are connected, wherein the Kaldo furnace (1) is connected with the venturi dust remover (4) through the cooling flue (2); the compensator (3) is arranged in a position where the cooling flue (2) is connected with the venturi dust remover (4); the water atomization system (5) is arranged at the upper part of the venturi dust remover (4); the hydraulic servo device (6) is arranged at the bottom of the venturi dust remover (4); and the outlet end of the venturi dust remover (4) is connected with the dehydrater (8) through a connecting pipe (7). The device can effectively recover rare metal in flue gas and dust of the Kaldo furnace, effectively utilize acidic gas in the flue gas, and has high flue gas purification efficiency.
Description
Technical field
The utility model belongs to environmental protection dedusting field, particularly the many kiln gas of Ka Er is directly entered the lower the temperature device of dedusting of Wet-way dust-collector.
Background technology
The many stoves of Ka Er mainly apply in the smelting process of non-ferrous metal.Many stove fires of Ka Er method is smelted non-ferrous metal and is produced a large amount of flue gases, and because the raw ore of non-ferrous metal all is associated minerals basically, contains a large amount of S and other heavy metal in the associated minerals.S in these associated minerals and other heavy metal, in smelting process, can enter flue gas, therefore can contain a large amount of sour gas and heavy metal in the primitive component of flue gas, if these sour gas and heavy metal directly enter atmosphere and discharge, can cause atmosphere pollution on the one hand, form local acid rain and heavy metal substance contaminated soil, bring great harm for the environment of factory's periphery and resident's life.Meanwhile higher can the recycling of content of sour gas in the many kiln gas of Ka Er is used for relieving haperacidity.And, therefore can recycle the heavy metal in the many kiln gas of Ka Er because the heavy metal major part in the associated minerals all is a rare metal.
The duration of heat of the many stoves of Ka Er is longer, and conventional smelting cycle also is at three to four hours, and therefore the many kiln gas of Ka Er are to continue discharging in smelting process.So also just help the many kiln gas of Ka Er are monitored and handled.
Many kiln gas of Ka Er dust collection method mainly contains at present: dry method and wet method.Mainly containing waste heat boiler+electric dust removing system and waste heat boiler+bag-type dust removal system in dry method, mainly is to adopt two civilian formula dust pelletizing systems in wet method.
In dry method dust, lower the temperature because the temperature of the many kiln gas of Ka Er is higher so increase a waste heat boiler in electric cleaner or sack cleaner front.And, very easily destroy the cooling function of waste heat boiler owing to contain a large amount of sour gas and heavy metal in the flue gas.Simultaneously because heavy metal major part in the flue gas be rare metal, and metallic particles degree and molal weight are bigger, therefore very easily fouling and cause the cloth bag paste bag of sack cleaner on the electrode of electric cleaner.For electric cleaner, these dirts are difficult to stripping electrode, influence electrode discharge, thereby influence the dust removing effects of electric cleaner.Need excise processing to fouled electrodes, reinstall electrode.Because the layout of electrode is the solid matter type in the electric cleaner, no matter be resection electrode or reinstall electrode all the utmost point be not easy, after the serious fouling of electric cleaner electrode, can not in time change, influence the efficiency of dust collection of electric cleaner.Same, because metallic particles degree in many kiln gas of Ka Er dust and molal weight cause the filter bag of sack cleaner to stick with paste bag greatly easily, the deashing that is unfavorable for sack cleaner, dwindled the filter bag replacement cycle of sack cleaner, increased site examining and repairing workman's workload, with the development trend contrary of society.
In wet dedusting, be to adopt two civilian formula dust pelletizing systems traditionally.The secondary Venturi tube of this dedusting method is the R-D Venturi tube, and aditus laryngis partly adopts nitrogen to disclose pin to carry out water atomization, and this spray patterns water spray is inhomogeneous, sprays water into column, impacts secondary-atomizing by high velocity air, causes resistance to increase; Simultaneously owing to be that R-D turnover panel regulative mode easily causes the inhomogeneous of dust removing effects.After the R-D valve plate changes an angle, upset air-flow, influence resistance; Bilateral is sprayed water a side at contraction section, and a side is at expansion segment, contraction section one side water spray good purification, and the clean-up effect of expansion segment one side water spray is poor.Cause smart dust removing effects undesirable, dust emission concentration exceeds standard, and the easy dust stratification of air-introduced machine causes fan trouble rate height, influences the service life of blower fan.And the water treatment system of two civilian formula dust pelletizing systems is huge, causes secondary pollution easily.
Summary of the invention
The purpose of this utility model provides a kind of at many kiln gas of Ka Er dust characteristics, rare metal in many kiln gas of Ka Er dust be can effectively reclaim, effectively sour gas in the many kiln gas of Ka Er, many stoves of Ka Er Wet-way dust-collector that gas cleaning efficient is high utilized.
To achieve these goals, the utility model provides following technical scheme:
A kind of many stoves of Ka Er Wet-way dust-collector, this device is connected with the many stoves 1 of Ka Er by cooling stack 2, it is characterized in that:
Described many stoves of Ka Er Wet-way dust-collector is to be connected to form by compensator 3, venturi scrubber 4, water atomization system 5, hydraulic servo device 6, dehydrator 8, wherein,
Ka Er is many, and stove 1 is connected with venturi scrubber 4 by cooling stack 2, be provided with compensator 3 in cooling stack 2 and venturi scrubber 4 junctions, be provided with water atomization system 5 on venturi scrubber 4 tops, be furnished with hydraulic servo device 6 in venturi scrubber 4 bottoms, the end that goes out of venturi scrubber 4 is connected with dehydrator 8 by liaison tube 7.
Described dehydrator 8 is eddy flow dehydrator or wire mesh dehydrator.
Exhanst gas outlet at many stove 1 fire doors of Ka Er, cooling stack 2 ends, venturi scrubber 4 outlets, dehydrator 8 is provided with temperature measuring equipment 11 and/or pressure tester 12.
Be provided with the drainpipe that directly sewage is discharged into Safety water seal or water receiving treatment system in described dehydrator 8 bottoms.
On described dehydrator 8, be provided with safety anti-explosive valve 9.
The working surface of described compensator 3, venturi scrubber 4, water atomization system 5 is handled through high-temperature anticorrosion, and the working surface of described liaison tube 7, dehydrator 8 and safety anti-explosive valve 9 is handled through low-temperature corrosion protection.
What described water atomization system 5 adopted is nozzle atomization, and this water atomization system 5 is adjustable according to the operating mode water consumption.
Also comprise an air-introduced machine 10, it is gone into end and is connected with described dehydrator 8, goes out to hold connection to diffuse and acid making system.
13 adjustable connections of heavy thallium in hydraulic servo device and 6 venturi scrubbers 4, the position of heavy thallium 13 can be according to operating mode, regulated in real time by hydraulic servo device 6.
The beneficial effects of the utility model are:
This device adopts many stoves of Ka Er Wet-way dust-collector, realizes the high efficiente callback of sour gas, rare metal dust in the many kiln gas of Ka Er; This device has SR low (system's running resistance is less than 15KPa), the blower fan wasted work is low, has greatly improved the effective rate of utilization of dedusting water, and equipment failure rate is low, and (dust contained flue gas concentration is less than 50mg/Nm for gas cleaning efficient height
3) characteristics.And in many stoves of Ka Er smelting process, this device adopts regulates technological operation in real time, but the servo apply hydraulic pressure device was regulated the position of heavy thallium in the venturi scrubber in real time according to the fire door elementary errors situation of pressing when the flue gas variable quantity was big, regulate the aditus laryngis flue gas flow rate, to reach the dust removing effects of stability and high efficiency.Smelt the difference regulation and control water atomization in time system of phase simultaneously according to fire door, the use amount of regulating dedusting water reduces dedusting water use amount, the load of reduction water treatment system.Good dedusting effect, system is stable, greatly reduces the fault rate of blower fan, the rare metal rate of recovery height in the dust, good dedusting effect is beneficial to the operation of later stage acid making system and exhaust system, and is significant to the energy-saving and emission-reduction of non-ferrous metal pyrometallurgical smelting process.The utility model is a kind of energy-conserving and environment-protective new technology with extensive promotional value, can be widely used in the many kiln gas of Ka Er and purify recovery system.
Description of drawings
Fig. 1 is the schematic diagram of many stoves of Ka Er Wet-way dust-collector of the present utility model.
The specific embodiment
The utility model technology relates to a kind of many kiln gas of non-ferrous metal pyrometallurgical smelting Ka Er wet cleaning device.It comprises to many stove fires of Ka Er method smelt that the high-temperature flue gas that non-ferrous metal produces is lowered the temperature, sour gas and metallic dust in the dedusting, recovery high-temperature flue gas.Main flow process is that the many kiln gas of Ka Er pass through cooling stack, lowers the temperature and dedusting through venturi scrubber again, enters dehydrator again and carries out the aqueous vapor separation, carries out fume emission or enters acid making system via air-introduced machine then.
The utility model is applicable to many stoves of non-ferrous metal pyrometallurgical smelting Ka Er wet dedusting new technology, this is to innovate on the basis of traditional wet dedusting technology, the utility model Wet-way dust-collector has been cancelled the one-level Venturi tube in the conventional wet dust pelletizing system, utilize the less water yield to make the stable cooling of being achieved of 220 ℃ of flue gases, reduce the load of water treatment system simultaneously, reduced the water treatment expense; Simultaneously venturi scrubber also has the effect of the smart dedusting of R-D turnover panel deduster in the conventional wet dust pelletizing system concurrently, the problem that solved that R-D turnover panel deduster easily stops up, equipment complexity, fault rate height, purification efficiency is subjected to the restriction of valve plate adjusting angle.Have SR low (system's running resistance is less than 15KPa), the blower fan wasted work is low, greatly reduces the use of dedusting water, equipment failure rate is low, (dust contained flue gas concentration is less than 50mg/Nm for gas cleaning efficient height
3) characteristics, and in many stoves of Ka Er smelting process, this device adopts the real-time monitoring technological operation, with the preceding burning phase, smelt device, interval servo apply hydraulic pressure device that back burning phase gas variable quantity is bigger is regulated the position of heavy thallium in the venturi scrubber in real time according to the fire door elementary errors situation of pressing, regulate the aditus laryngis flue gas flow rate, to reach the dust removing effects of stability and high efficiency.Smelt the difference regulation and control water atomization in time system of phase simultaneously according to fire door, the use amount of regulating dedusting water reduces dedusting water use amount, the load of reduction water treatment system.Good dedusting effect, system is stable, greatly reduces the fault rate of blower fan, the rare metal rate of recovery height in the dust, good dedusting effect is beneficial to the operation of later stage acid making system and exhaust system, and is significant to the energy-saving and emission-reduction of non-ferrous metal pyrometallurgical smelting process.
Many stoves of Ka Er Wet-way dust-collector that the utility model obtains, its operational process is as follows:
With reference to accompanying drawing 1, a specific embodiment of the present utility model is described in detail:
Ka Er is many, and stove 1 is connected with venturi scrubber 4 by cooling stack 2, be provided with compensator 3 in cooling stack 2 and venturi scrubber 4 junctions, compensator 3 can be to cooling stack 2 with venturi scrubber 4 because the swell increment that causes of expanding with heat and contract with cold is replenished adjusting, to guarantee the compactness of the two connection.Venturi scrubber 4 adopts the high temperature corrosion-resisting steel plate to make, and is provided with water atomization system 5 in venturi scrubber 4.5 branches of wherein water atomization system utilize 5 pairs of flue gases of water atomization system to carry out fast cooling and dedusting on the top of venturi scrubber 4, owing to be to use atomization system therefore can significantly reduce the use amount of dedusting water.Simultaneously be furnished with hydraulic servo device 6 counterweight thalliums 13 positions in venturi scrubber 4 bottoms and regulate, keep the stability and the high efficiency of smart dedusting, venturi scrubber 4 is regulated the aditus laryngis flue gas flow rate by hydraulic servo device 6, arrives and stablizes the purpose of dedusting.Entering dehydrator 8 through the purification flue gas of smart dedusting through liaison tube 7 carries out aqueous vapor and separates.
This device is reduced to the high-temperature flue gas that the many stoves 1 of Ka Er produce about 220 ℃ through cooling stack 2, enters venturi scrubber 4 through compensator 3 again.Venturi scrubber 4 adopts the heavy thallium 13 of flip chip type, water atomization system 5, hydraulic servo control device 6 to realize meticulous, stable regulation and control at venturi scrubber 4 aditus laryngis places, utilize high velocity air that atomized water is carried out the capture effect of secondary-atomizing reinforcement to meticulous dust in the flue gas, heavy thallium 13 adopts airflow designs.The dedusting water that venturi scrubber 4 comes out enters dehydrator 8 in company with the purification flue gas through liaison tube 7 and carries out the aqueous vapor separation.Dehydrator 8 adopts the eddy flow dehydrator to dewater, under some operating mode, can adopt wire mesh dehydrator, dedusting water is sent into water treatment system, metallic dust is carried out precipitation separation finish and be recycled, and liaison tube 7 and dehydrator 8 adopt corrosion-resistant fiberglass to make.Exhanst gas outlet at many stove 1 fire doors of Ka Er, cooling stack 2 ends, venturi scrubber 4 outlets, dehydrator 8 is equipped with temperature measuring equipment 11 and pressure tester 12, running status with real-time monitoring system, for hydraulic servo device 6 provides controlled condition, to guarantee the stable operation of system.Purification flue gas after dedusting and the dehydration enters diffusion system or acid making system under taking out of air-introduced machine 10 drawn, and is reduced to 50mg/Nm through the dust content of smart dedusting and dehydration
3, the dustiness of flue gas reduces the stable operation that helps acid making system, also can reduce the fault rate of air-introduced machine 10 simultaneously.Be provided with drainpipe in dehydrator 8 bottoms and directly sewage be discharged into Safety water seal or water receiving treatment system.On dehydrator 8, be provided with safety anti-explosive valve 9, to guarantee the safe operation of equipment.Compensator 3, venturi scrubber 4, water atomization system 5 all need do high-temperature anticorrosion and handle, and liaison tube 7, dehydrator 8 and safety anti-explosive valve 9 all need be done low-temperature corrosion protection and handle.What the water atomization system 5 that uses in venturi scrubber 4 adopted is nozzle atomization, strengthens the atomizing effect of cooling and dedusting water, improves the cooling and the dust removing effects of equipment.
Claims (9)
1. many stoves of Ka Er Wet-way dust-collector, this device is connected with the many stoves of Ka Er (1) by cooling stack (2), it is characterized in that:
Described many stoves of Ka Er Wet-way dust-collector is to be connected to form by compensator (3), venturi scrubber (4), water atomization system (5), hydraulic servo device (6), dehydrator (8), wherein,
The many stoves of Ka Er (1) are connected with venturi scrubber (4) by cooling stack (2), be provided with compensator (3) in cooling stack (2) and venturi scrubber (4) junction, be provided with water atomization system (5) on venturi scrubber (4) top, be furnished with hydraulic servo device (6) in venturi scrubber (4) bottom, the end that goes out of venturi scrubber (4) is connected with dehydrator (8) by liaison tube (7).
2. many stoves of Ka Er Wet-way dust-collector according to claim 1 is characterized in that: described dehydrator (8) is eddy flow dehydrator or wire mesh dehydrator.
3. many stoves of Ka Er Wet-way dust-collector according to claim 1 is characterized in that: the exhanst gas outlet at the many stoves of Ka Er (1) fire door, cooling stack (2) end, venturi scrubber (4) outlet, dehydrator (8) is provided with temperature measuring equipment (11) and/or pressure tester (12).
4. many stoves of Ka Er Wet-way dust-collector according to claim 1 is characterized in that: be provided with the drainpipe that directly sewage is discharged into Safety water seal or water receiving treatment system in described dehydrator (8) bottom.
5. many stoves of Ka Er Wet-way dust-collector according to claim 1 is characterized in that: be provided with safety anti-explosive valve (9) on described dehydrator (8).
6. many stoves of Ka Er Wet-way dust-collector according to claim 1, it is characterized in that: the working surface of described compensator (3), venturi scrubber (4), water atomization system (5) is handled through high-temperature anticorrosion, and the working surface of described liaison tube (7), dehydrator (8) and safety anti-explosive valve (9) is handled through low-temperature corrosion protection.
7. many stoves of Ka Er Wet-way dust-collector according to claim 1 is characterized in that: what described water atomization system (5) adopted is nozzle atomization, and this water atomization system (5) is adjustable according to the operating mode water consumption.
8. many stoves of Ka Er Wet-way dust-collector according to claim 1 is characterized in that: also comprise an air-introduced machine (10), it is gone into end and is connected with described dehydrator (8), goes out to hold connection to diffuse and acid making system.
9. many stoves of Ka Er Wet-way dust-collector according to claim 1, it is characterized in that: the adjustable connection of heavy thallium (13) in hydraulic servo device and (6) venturi scrubber (4), the position of heavy thallium (13) can be according to operating mode, regulated in real time by hydraulic servo device (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205938542U CN201852476U (en) | 2010-11-05 | 2010-11-05 | Wet dust removal device of Kaldo furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205938542U CN201852476U (en) | 2010-11-05 | 2010-11-05 | Wet dust removal device of Kaldo furnace |
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| CN201852476U true CN201852476U (en) | 2011-06-01 |
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| CN2010205938542U Expired - Fee Related CN201852476U (en) | 2010-11-05 | 2010-11-05 | Wet dust removal device of Kaldo furnace |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924010A (en) * | 2013-01-15 | 2014-07-16 | 宝山钢铁股份有限公司 | Venturi type dust removal device for processing and discharging steelmaking roller slag |
| CN104061792A (en) * | 2013-03-18 | 2014-09-24 | 宁夏嘉翔自控技术有限公司 | Venturi fan smoke removal system of refining furnace |
| CN104388700A (en) * | 2014-11-11 | 2015-03-04 | 宁夏嘉翔自控技术有限公司 | Water spraying dust remover for central dust removal station of magnesium metal smelting and reducing slag high pressure deslagging and charging system |
| CN105369005A (en) * | 2015-11-20 | 2016-03-02 | 北京博鹏北科科技有限公司 | Improved downgoing type circular seam Venturi tube |
| CN108854341A (en) * | 2017-05-15 | 2018-11-23 | 张连华 | A kind of fume purifier |
| CN109338029A (en) * | 2018-11-07 | 2019-02-15 | 武汉科技大学 | A kind of gas flow adjusting means and deduster and dust pelletizing system |
| CN114754596A (en) * | 2022-03-09 | 2022-07-15 | 金川集团股份有限公司 | Method and device for treating anode mud feeding flue gas |
-
2010
- 2010-11-05 CN CN2010205938542U patent/CN201852476U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924010A (en) * | 2013-01-15 | 2014-07-16 | 宝山钢铁股份有限公司 | Venturi type dust removal device for processing and discharging steelmaking roller slag |
| CN103924010B (en) * | 2013-01-15 | 2016-06-29 | 宝山钢铁股份有限公司 | Steel-making roller slag processes discharge venturi type dust arrester |
| CN104061792A (en) * | 2013-03-18 | 2014-09-24 | 宁夏嘉翔自控技术有限公司 | Venturi fan smoke removal system of refining furnace |
| CN104388700A (en) * | 2014-11-11 | 2015-03-04 | 宁夏嘉翔自控技术有限公司 | Water spraying dust remover for central dust removal station of magnesium metal smelting and reducing slag high pressure deslagging and charging system |
| CN105369005A (en) * | 2015-11-20 | 2016-03-02 | 北京博鹏北科科技有限公司 | Improved downgoing type circular seam Venturi tube |
| CN108854341A (en) * | 2017-05-15 | 2018-11-23 | 张连华 | A kind of fume purifier |
| CN109338029A (en) * | 2018-11-07 | 2019-02-15 | 武汉科技大学 | A kind of gas flow adjusting means and deduster and dust pelletizing system |
| CN114754596A (en) * | 2022-03-09 | 2022-07-15 | 金川集团股份有限公司 | Method and device for treating anode mud feeding flue gas |
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Address after: 100083 Beijing City, Haidian District Xueyuan Road District No. 30 Fangxing ten storey building room 1001 Patentee after: Beijing bpbk energy-saving environmental protection Limited by Share Ltd Address before: 100083 Beijing City, Haidian District Xueyuan Road District No. 30 Fangxing ten storey building room 1001 Patentee before: Beijing Bopeng Beike Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20110601 Termination date: 20181105 |