CN201032399Y - Kiln end dust collecting device of aluminum oxide calcin kiln - Google Patents
Kiln end dust collecting device of aluminum oxide calcin kiln Download PDFInfo
- Publication number
- CN201032399Y CN201032399Y CNU200720019886XU CN200720019886U CN201032399Y CN 201032399 Y CN201032399 Y CN 201032399Y CN U200720019886X U CNU200720019886X U CN U200720019886XU CN 200720019886 U CN200720019886 U CN 200720019886U CN 201032399 Y CN201032399 Y CN 201032399Y
- Authority
- CN
- China
- Prior art keywords
- kiln
- aluminum oxide
- cool air
- chimney
- dust
- 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.)
- Expired - Lifetime
Links
- 239000000428 dust Substances 0.000 title claims abstract description 23
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 title abstract 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 8
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000005245 sintering Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Images
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to a tail dust recovery device of an aluminum oxide clinker kiln, which is characterized in that: the device comprises a cloth-bag dust recovery device, which is connected to a fan before a chimney, and a cool air pipe is connected to the chimney and provided with a cool air valve. The utility model is suitable for the dust recovery of tail-gas of the clinker kiln for the production of aluminum oxide through sintering process, has the advantages of strong ash removing ability, low dust emission concentration, small land occupancy, low energy consumption, a little maintenance, low expenses and safety and reliability, and can reduce the dust emission concentration of aluminum oxide clinker kiln from 150mg/Nm3 to below 30mg/Nm3, thus cutting down the waste discharge expenses and relieving environmental pollution.
Description
Technical field
The utility model relates to a kind of alumina rotary kiln kiln tail dust arrester installation, reduces dust emission.
Background technology
The kiln tail dust-precipitator of domestic alumina rotary kiln is cottrell, and cottrell has the operation energy consumption height, and maintenance workload is big, discharges shortcomings such as not up to standard behind the operation certain hour.The GB of chamotte kiln concentration of emission requires to be 100mg/Nm at present
3, this is not easy to reach concerning cottrell, and general company's discharging reaches 150mg/Nm
3, facts have proved, generally can be up to standard when most cottrells newly come into operation, how long concentration of emission will exceed standard but do not move, even is above standard one times or higher.Along with the progress of society, environmental requirement is more and more tighter, in the world 50mg/Nm today of developed country
3Discharge standard be exactly the standard of our tomorrow.In fact, it is very difficult electricity is gathered dust reaching this standard.In recent years, action of low-voltage pulse bagroom technology has had very great development, and bagroom has obtained application at limestone kiln, thermal power plant boiler etc.Along with the long-term use of cottrell and the raising of environmental requirement, company gathers dust to administer at electricity behind the kiln and all will spend a large amount of funds every year simultaneously.
The utility model content
The purpose of this utility model is to provide a kind of alumina rotary kiln kiln tail dust arrester installation, and the deashing ability is strong, and dust emission concentration is little, and floor space is little, and operation energy consumption is low, and maintenance workload is little, and expense is low, and is safe and reliable.
Alumina rotary kiln kiln tail dust arrester installation described in the utility model has by connecting the bagroom that flue is communicated with the kiln tail, and sack cleaner connects the blower fan before the chimney, connects on the flue to be connected with cool air hose, and cool air hose is provided with cold blast sliding valve.
Replace existing cottrell to carry out gathering dust of tail gas with bagroom, the deashing ability is strong, dust emission concentration is little, floor space is little, operation energy consumption is low, maintenance workload is little, expense is low, it is convenient to change cloth bag, the specific collection area of bagroom according to the kiln of chamotte kiln after exhaust air rate calculate.When flue-gas temperature reaches more than 260 ℃, open the temperature that cold blast sliding valve guarantees that flue gas advances bagroom and be lower than 260 ℃, safe and reliable.
Blower fan is communicated with chimney by connecting flue, can also being connected between blower fan and chimney connect cool air hose on the flue, establishes cold blast sliding valve on cool air hose, can further reduce the exhaust temperature of flue gas.Under the special process condition, cool air hose can become the short circuit pipe, makes flue gas directly from smoke stack emission.
Alumina rotary kiln kiln tail dust arrester installation described in the utility model, tail gas gathers dust after being suitable for sintering process and producing the kiln of alumina rotary kiln, have advantages such as the deashing ability is strong, dust emission concentration is little, floor space is little, operation energy consumption is low, maintenance workload is little, expense is low, safe and reliable, can make the alumina rotary kiln dust exhausting concentration by 150mg/Nm
3Drop to 30mg/Nm
3Below, reduced the charges for disposing pollutants of company, alleviated environmental pollution.
Description of drawings
Fig. 1, the utility model one embodiment easy structure schematic diagram.
Among the figure: 1, kiln tail 2, connection flue 3, sack cleaner 4, cool air hose 5, cold blast sliding valve 6, blower fan 7, cool air hose 8, cold blast sliding valve 9, connection flue 10, chimney.
The specific embodiment
The utility model is described in further detail in conjunction with the foregoing description accompanying drawing.
As shown in the figure, alumina rotary kiln kiln tail dust arrester installation described in the utility model, have by connecting the bagroom 3 that flue 2 is communicated with kiln tail 1, blower fan 6 is communicated with chimney 10 by connecting flue 9, sack cleaner 3 connects blower fan 6, be connected with cool air hose 4,7 on the connection flue 2,9, be respectively equipped with cold blast sliding valve 5,8 on the cool air hose 4,7.Flue gas discharges through sack cleaner 3, blower fan 6 and chimney 10 backs successively from kiln tail 1.
Claims (2)
1. an alumina rotary kiln kiln tail dust arrester installation is characterized in that having by connecting the bagroom that flue is communicated with the kiln tail, and sack cleaner connects the blower fan before the chimney, connects on the flue to be connected with cool air hose, and cool air hose is provided with cold blast sliding valve.
2. alumina rotary kiln kiln tail dust arrester installation according to claim 1 is characterized in that blower fan is communicated with chimney by connecting flue, and being connected between blower fan and chimney is connected with cool air hose on the flue, and cool air hose is provided with cold blast sliding valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720019886XU CN201032399Y (en) | 2007-03-22 | 2007-03-22 | Kiln end dust collecting device of aluminum oxide calcin kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720019886XU CN201032399Y (en) | 2007-03-22 | 2007-03-22 | Kiln end dust collecting device of aluminum oxide calcin kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201032399Y true CN201032399Y (en) | 2008-03-05 |
Family
ID=39164289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720019886XU Expired - Lifetime CN201032399Y (en) | 2007-03-22 | 2007-03-22 | Kiln end dust collecting device of aluminum oxide calcin kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201032399Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311135A (en) * | 2010-06-29 | 2012-01-11 | 沈阳铝镁设计研究院有限公司 | Method for ash returning utilizing electrical dust collection |
| CN101928026B (en) * | 2009-06-26 | 2012-07-04 | 中国恩菲工程技术有限公司 | Sintering process for producing alumina |
| CN104075583A (en) * | 2014-07-15 | 2014-10-01 | 中国铝业股份有限公司 | Dust collection device and method of aluminium oxide roasting furnace |
-
2007
- 2007-03-22 CN CNU200720019886XU patent/CN201032399Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928026B (en) * | 2009-06-26 | 2012-07-04 | 中国恩菲工程技术有限公司 | Sintering process for producing alumina |
| CN102311135A (en) * | 2010-06-29 | 2012-01-11 | 沈阳铝镁设计研究院有限公司 | Method for ash returning utilizing electrical dust collection |
| CN104075583A (en) * | 2014-07-15 | 2014-10-01 | 中国铝业股份有限公司 | Dust collection device and method of aluminium oxide roasting furnace |
| CN104075583B (en) * | 2014-07-15 | 2016-03-30 | 中国铝业股份有限公司 | A kind of alumina roasting furnace dust arrester installation and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080305 |