CN102401572A - On-line dust cleaning device for low-temperature dust-containing tail gas - Google Patents

On-line dust cleaning device for low-temperature dust-containing tail gas Download PDF

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Publication number
CN102401572A
CN102401572A CN2011103430099A CN201110343009A CN102401572A CN 102401572 A CN102401572 A CN 102401572A CN 2011103430099 A CN2011103430099 A CN 2011103430099A CN 201110343009 A CN201110343009 A CN 201110343009A CN 102401572 A CN102401572 A CN 102401572A
Authority
CN
China
Prior art keywords
dust
furnace
netted
tail gas
driving wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011103430099A
Other languages
Chinese (zh)
Inventor
刘祥斌
陈长景
曹华
许荣政
杨成
张�杰
许海军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YANCHENG CITY BOILER MANUFACTURING Co Ltd
Original Assignee
YANCHENG CITY BOILER MANUFACTURING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by YANCHENG CITY BOILER MANUFACTURING Co Ltd filed Critical YANCHENG CITY BOILER MANUFACTURING Co Ltd
Priority to CN2011103430099A priority Critical patent/CN102401572A/en
Publication of CN102401572A publication Critical patent/CN102401572A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The invention discloses an on-line dust cleaning device for low-temperature dust-containing tail gas. The device comprises a furnace wall and a netted dust-capturing device, wherein the furnace wall is in hollow cavity arrangement and provided with an furnace wall smoke inlet and a furnace wall smoke outlet; the netted dust-capturing device is arranged adjacent to the furnace wall smoke inlet and comprises a netted dust-capturing belt, a driving device, a driving wheel and a driven wheel; the driving wheel and the driven wheel are respectively supported on the outside of the furnace wall through a bracket; the driving wheel is connected with the output end of the driving device; the netted dust-capturing belt is wound on the peripheries of the driving wheel and the driven wheel; at the same time, the driving wheel and the driven wheel are arranged in a sealing cavity; and the sealing cavity is connected with the wall surface of the furnace wall in a sealing manner. The on-line dust cleaning device can clean most of the dust in the tail gas without influencing the waste heat of the lower temperature tail gas so as to ensure the safe and normal operation of a waste heat recycling device.

Description

Low temperature dust-laden tail gas online ash removal dust arrester
Technical field
The present invention relates to a kind of low temperature dust-laden tail gas online ash removal dust arrester, belong to low temperature exhaust heat recovery technology field.
Background technology
Along with further going deep into of energy-saving and emission-reduction policy, the waste heat of some low temperature (temperature is about 400 ℃) dust-laden tail gas has obtained utilization, when utilizing these tail gas, and the following problem of ubiquity:
1, owing to have amounts of dust in the tail gas, the character of various dust is different, causes the heating surface tube dust stratification serious, has seriously hindered waste heat recovery; For example: contain a large amount of silica dusts in the avasite heating furnace flue, cause fouling of heating surface serious, existing waste heat boiler all can not normally put into operation.
2, owing to contain amounts of dust in the tail gas, especially to low temperature exhaust gas, waste heat boiler can not adopt extended surface, and boiler arranges that heating surface is big, and boiler structure is huge; For example: rotary hearth furnace waste heat flue gas can be separated out a kind of oily matter when low-temperature zone, increases the heat exchange thermal resistance, causes heating surface huge.
3, dust arrester commonly used is set between waste-heat recovery device, for example: gravity or cyclone dust collectors inferior separating effect, the electric dust-removing equipment investment is big, temperature drop is big, and the sack cleaner heatproof is not high; And all there is the big problem of equipment resistance in these equipment; Can't handle for cohesiveness and adsorptivity ash, need regular blowing out cleaning.
If can effectively address these problems,, produce bigger economic and social benefit with the UTILIZATION OF VESIDUAL HEAT IN that further promotes low temperature dust-laden tail gas.
Summary of the invention
The present invention is directed to the deficiency of prior art, a kind of low temperature dust-laden tail gas online ash removal dust arrester is provided, under the prerequisite that does not influence the low temperature exhaust gas waste heat, remove most of dust in the tail gas, guarantee waste-heat recovery device safety, normal operation.
For realizing above technical purpose, the present invention will take following technical scheme:
A kind of low temperature dust-laden tail gas online ash removal dust arrester comprises being the furnace wall that cavity is provided with that said furnace wall is provided with furnace wall and advances mouth and furnace wall outlet flue; Also comprise netted dust trapping device; This netted dust trapping device advances the mouth setting near furnace wall; Said netted dust trapping device comprises netted dust lane, drive unit, driving wheel and the driven pulley of catching; Said driving wheel and driven pulley relatively are supported on the outside of furnace wall respectively through support, and driving wheel is connected with the output of drive unit; Netted periphery of catching dust lane around driving wheel and driven pulley; Driving wheel and driven pulley place in the annular seal space wall sealing-in of sealing chamber and furnace wall simultaneously.
The inwall of the annular seal space of said driven pulley side is connected with dust cleaner, and this side seal chamber is provided with except that cinder notch.
Said cleaning plant is a steel brush, and the brush of steel brush is caught the dust lane setting towards netted; Perhaps said cleaning plant is the high pressure water washing device, and the shower nozzle of this high pressure water cleaning device is installed in the inwall of annular seal space; Perhaps said cleaning plant is the compressed air rinsing device, and the shower nozzle of this compressed air rinsing device is installed in the inwall of annular seal space.
The said netted dust lane of catching adopts the filter course of being made up of multi-layer silk screen to constitute; This netted dust lane of catching is perpendicular to the flow of flue gas direction setting in the furnace wall.
According to above technical scheme, can realize following beneficial effect:
1, cohesiveness and adsorptivity ash in the online removing tail gas, assurance device moves continuously, guarantees economic and social benefit;
When 2, flue gas was through this device, the flue gas temperature drop was little, generally is no more than 10 ℃;
When 3, flue gas was through this device, flue gas resistance was little, generally is no more than 300Pa;
4, under the situation of not blowing out, cohesiveness in the tail gas and adsorptivity ash are removed, and the temperature drop of tail gas is little, resistance drop is little.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Wherein: furnace wall 1; Furnace chamber heating surface 11; Drive unit 2; Driving wheel 3; The netted dust lane 4 of catching; Dust cleaner 5; Driven pulley 6.
The specific embodiment
Accompanying drawing discloses the structural representation of preferred embodiment involved in the present invention without limitation; Below will combine accompanying drawing that technical scheme of the present invention at length is described.
As shown in Figure 1, low temperature dust-laden tail gas online ash removal dust arrester of the present invention comprises being the furnace wall 1 that cavity is provided with that said furnace wall 1 is provided with furnace wall and advances mouth and furnace wall outlet flue; Also comprise netted dust trapping device; This netted dust trapping device advances the mouth setting near furnace wall; This netted dust trapping device comprises netted dust lane 4, drive unit 2, driving wheel 3 and the driven pulley 6 of catching; Said driving wheel 3 and driven pulley 6 relatively are supported on the outside of furnace wall 1 respectively through support, and driving wheel 3 is connected with the output of drive unit 2; Netted periphery of catching dust lane 4 around driving wheel 3 and driven pulley 6; Driving wheel 3 and driven pulley 6 place in the annular seal space wall sealing-in of sealing chamber and furnace wall 1 simultaneously.The inwall of the annular seal space of said driven pulley 6 sides is connected with dust cleaner 5, and this side seal chamber is provided with except that cinder notch.Said cleaning plant is a steel brush, and the brush of steel brush is provided with towards the netted dust lane 4 of catching; Perhaps said cleaning plant is the high pressure water washing device, and the shower nozzle of this high pressure water cleaning device is installed in the inwall of annular seal space; Perhaps said cleaning plant is the compressed air rinsing device, and the shower nozzle of this compressed air rinsing device is installed in the inwall of annular seal space.The said netted dust lane 4 of catching adopts the filter course of being made up of multi-layer silk screen to constitute; This netted dust lane 4 of catching is perpendicular to the flow of flue gas direction setting in the furnace wall 1.
Drive unit 2 is made up of motor, deceleration device and transmission device; Be arranged in outside the flue, not washed away by tail gas, transmission device generally is arranged in the top of equipment, also can arrange arbitrarily according to the actual conditions at scene; Cleaning plant is arranged in outside the flue, according to the characteristic of dust different manner of cleaning up is set, as: steel brush, water flushing, compressed air rinsing etc., or the combination of several kinds of modes; The netted dust lane 4 of catching is made up of multi-layer silk screen, selects different silk screens according to the character of ash; Filter course arranges that perpendicular to the exhaust gas flow direction filter course is full of whole flue gas actual internal area.
During use, through the netted dust lane 4 of catching, dust is caught by netted filter screen of catching dust lane 4 in the tail gas with the dust-laden tail gas low speed of temperature about 400 ℃; The netted dust lane 4 of catching rotates on the flue cross section under drive unit 2 drives; When the netted dust lane 4 of catching that contains dust when running to the cleaning plant outside the flue; Carry out deashing and handle, later netted of deashing caught dust lane 4 and turned to again and catch dust in the flue; Characteristic according to ash in running is carried out the rotating speed adjustment with the size of ash amount.

Claims (4)

1. a low temperature dust-laden tail gas online ash removal dust arrester comprises being the furnace wall that cavity is provided with, and said furnace wall is provided with furnace wall and advances mouth and furnace wall outlet flue; It is characterized in that: also comprise netted dust trapping device; Said netted dust trapping device advances the mouth setting near furnace wall; This netted dust trapping device comprises netted dust lane, drive unit, driving wheel and the driven pulley of catching; Said driving wheel and driven pulley relatively are supported on the outside of furnace wall respectively through support, and driving wheel is connected with the output of drive unit; Netted periphery of catching dust lane around driving wheel and driven pulley; Driving wheel and driven pulley place in the annular seal space wall sealing-in of sealing chamber and furnace wall simultaneously.
2. low temperature dust-laden tail gas online ash removal dust arrester according to claim 1, it is characterized in that: the inwall of the annular seal space of said driven pulley side is connected with dust cleaner, and this side seal chamber is provided with except that cinder notch.
3. low temperature dust-laden tail gas online ash removal dust arrester according to claim 2, it is characterized in that: said cleaning plant is a steel brush, the brush of steel brush is caught the dust lane setting towards netted; Perhaps said cleaning plant is the high pressure water washing device, and the shower nozzle of this high pressure water cleaning device is installed in the inwall of annular seal space; Perhaps said cleaning plant is the compressed air rinsing device, and the shower nozzle of this compressed air rinsing device is installed in the inwall of annular seal space.
4. low temperature dust-laden tail gas online ash removal dust arrester according to claim 1 is characterized in that: the said netted dust lane of catching adopts the filter course of being made up of multi-layer silk screen to constitute; This netted dust lane of catching is perpendicular to the flow of flue gas direction setting in the furnace wall.
CN2011103430099A 2011-11-03 2011-11-03 On-line dust cleaning device for low-temperature dust-containing tail gas Pending CN102401572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011103430099A CN102401572A (en) 2011-11-03 2011-11-03 On-line dust cleaning device for low-temperature dust-containing tail gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011103430099A CN102401572A (en) 2011-11-03 2011-11-03 On-line dust cleaning device for low-temperature dust-containing tail gas

Publications (1)

Publication Number Publication Date
CN102401572A true CN102401572A (en) 2012-04-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106958454A (en) * 2017-04-08 2017-07-18 安徽盛运重工机械有限责任公司 A kind of New type wet coal mine dust remover
WO2020029039A1 (en) * 2018-08-06 2020-02-13 江苏东九重工股份有限公司 On-line dust cleaning device for low-temperature dust-containing tail gas

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5771625A (en) * 1980-10-24 1982-05-04 Mitsubishi Heavy Ind Ltd Arresting method of mist and dust of low-melting compound in exhaust gas
JPS59130523A (en) * 1983-01-13 1984-07-27 Mitsubishi Heavy Ind Ltd Dry type removing device for acidic gas in waste gas
CN2467162Y (en) * 2001-01-14 2001-12-26 于巍 Three-stage desulfurizing separator
CN2573057Y (en) * 2002-08-26 2003-09-17 胡继杰 High-pressure water fog and filter screen dust-collecting apparatus
CN201470231U (en) * 2009-07-22 2010-05-19 王旗 Bagasse and flue gas separator with mesh plate bagasse collecting exhaust vents
CN201969448U (en) * 2010-12-22 2011-09-14 居琴 Dust remover with cleaning device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5771625A (en) * 1980-10-24 1982-05-04 Mitsubishi Heavy Ind Ltd Arresting method of mist and dust of low-melting compound in exhaust gas
JPS59130523A (en) * 1983-01-13 1984-07-27 Mitsubishi Heavy Ind Ltd Dry type removing device for acidic gas in waste gas
CN2467162Y (en) * 2001-01-14 2001-12-26 于巍 Three-stage desulfurizing separator
CN2573057Y (en) * 2002-08-26 2003-09-17 胡继杰 High-pressure water fog and filter screen dust-collecting apparatus
CN201470231U (en) * 2009-07-22 2010-05-19 王旗 Bagasse and flue gas separator with mesh plate bagasse collecting exhaust vents
CN201969448U (en) * 2010-12-22 2011-09-14 居琴 Dust remover with cleaning device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106958454A (en) * 2017-04-08 2017-07-18 安徽盛运重工机械有限责任公司 A kind of New type wet coal mine dust remover
WO2020029039A1 (en) * 2018-08-06 2020-02-13 江苏东九重工股份有限公司 On-line dust cleaning device for low-temperature dust-containing tail gas

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Application publication date: 20120404