CN2779250Y - Cellular multi-stage rotary flow coal burner - Google Patents
Cellular multi-stage rotary flow coal burner Download PDFInfo
- Publication number
- CN2779250Y CN2779250Y CNU2005200890334U CN200520089033U CN2779250Y CN 2779250 Y CN2779250 Y CN 2779250Y CN U2005200890334 U CNU2005200890334 U CN U2005200890334U CN 200520089033 U CN200520089033 U CN 200520089033U CN 2779250 Y CN2779250 Y CN 2779250Y
- Authority
- CN
- China
- Prior art keywords
- flow wind
- coal dust
- eddy flow
- distribution apparatus
- coal
- 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 - Fee Related
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Classifications
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The utility model relates to a coal dust burner which is applied to various boilers, heating furnaces, building material kilns, etc. which can burn coal dust. The front end of a casing is provided with a spray head, the middle part of the spray head is provided with a flow dividing cone and the circumference of the flow dividing cone is provided with coal dust spraying angle holes. A first rotary flow wind distributing device is positioned in a venturi tube, and a plurality of rotary flow wind holes which are arranged in a tangential way are arranged on the first rotary flow wind distributing device. A coal dust inlet is arranged on a Laval nozzle, the other end of which is connected with a secondary rotary flow wind distributing device. The middle part of the secondary rotary flow wind distributing device is provided with a coal dust spraying outlet with a divergent pipe orifice. The coal dust spraying outlet is connected with an outlet of the Laval nozzle. The circumference of the coal dust spraying outlet of the secondary rotary flow wind distributing device is provided with a plurality of tangential air supplying holes. The utility model has the advantages that the burner can be suitable for big, middle and small-size power plants, oilfield industry, chemical industry, metallurgy industry, heating furnaces, building material kilns, civil heating boilers, etc. which can burn the coal dust, coal of various quality can be burnt, the burn-off rate is high, the heating efficiency is high, the black smoke can not be generated, the slag can not be formed, the stable burning can be realized under the condition of low excess air coefficient, the generating quantity and the discharge quantity of harmful substances in the process of burning can be effectively reduced and the utility model is beneficial to environment protection and energy saving.
Description
Technical field
The utility model relates to the coal burner that the boiler, heating furnace, building materials kiln of various combusting coal fines etc. uses.
Background technology
Coal dust burns with coal burner under various different burning forms, different condition as boiler oil, can improve burning of coal efficient, the thermal efficiency, cut down the consumption of energy, reduce air environmental pollution, for example the thermal power plant mainly is to use pulverized-coal fired boiler, the burner form of using is more, because the boiler space is big, load is big, the power of required coal burner is also big.Adjustment along with the energy resource structure policy, according to environmental protection requirement, the former fuel-firing gas-firing industry of serving changes fire coal, metabolic water coal slurry gradually into, and is main still to burn raw coal, as civilian heating boiler, heating furnace etc. per hour consumption only be tens kilograms to the hundreds of kilogram.Be energy savings, reduce air environmental pollution, the coal burner of the different model necessary strong, that burning capacity is adjustable with a kind of adaptive capacity.Solution is the processing powder process that at first solves coal dust, with multi-form burner, improves burn-off rate during burning, improves the thermal efficiency.Though the application technology of existing water-coal-slurry is fine, system engineering is comparatively complicated, the water content of water-coal-slurry the inside, evaporates with a large amount of heat energy in the combustion process, and last coal dust could burn, because dew point is too big, reduces the service life of equipment in the combustion process.Water-coal-slurry uses difficulty too big at north cold area, and is better with the coal dust of the slurrying benefit of directly burning.
Summary of the invention
The purpose of this utility model provides the ring-like multistage rotational flow coal dust burner that a kind of structure is comparatively simple, volume is little, adaptive capacity is strong, load regulation range is big.
Ring-like multistage rotational flow coal dust burner, it is characterized in that: the housing front end at device is provided with shower nozzle, be provided with the branch flow cone at the shower nozzle middle part, radial arrangement has coal dust jet angle hole around dividing flow cone, in housing, be provided with eddy flow wind distribution apparatus and secondary eddy flow wind distribution apparatus, one time eddy flow wind distribution apparatus is positioned at the air intake oral-lateral, be arranged in Venturi tube, on an eddy flow wind distribution apparatus, be provided with an eddy flow wind hole of several arranged tangential, Venturi tube is connected with Lavalle shape playpipe, on the shape playpipe of Lavalle, be provided with coal powder entrance, the other end of Lavalle shape playpipe is connected with secondary eddy flow wind distribution apparatus, secondary eddy flow wind distribution apparatus middle part is provided with the pulverized coal outlet of the band expansion mouth of pipe, pulverized coal outlet is connected with the outlet of Lavalle shape playpipe, be provided with the wind pushing hole of several arranged tangential around the pulverized coal outlet of secondary eddy flow wind distribution apparatus, wind pushing hole communicates with Lavalle shape playpipe ring cavity on every side in the housing.
The utility model has the advantages that the power plant that can adapt to large, medium and small combusting coal fines, oil, chemical industry, metallurgy, heating furnace, building materials kiln, civilian heating boiler etc., various atures of coal can both be burnt, the burn-off rate height, thermal efficiency height, and can realize under the low situation of excess air coefficient also can smooth combustion, effectively reduce the growing amount and the discharge capacity of harmful substances in the burning, useful environmental protection, energy-conservation.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
See Fig. 1, ring-like multistage rotational flow coal dust burner, housing front end at device is provided with shower nozzle 1, be provided with branch flow cone 3 at the shower nozzle middle part, radial arrangement has coal dust jet angle hole 2 around dividing flow cone, in housing 9, be provided with eddy flow wind distribution apparatus 11 and secondary eddy flow wind distribution apparatus 4, one time eddy flow wind distribution apparatus 11 is positioned at the air intake oral-lateral, be arranged in Venturi tube 13, on an eddy flow wind distribution apparatus 11, be provided with an eddy flow wind hole 12 of several arranged tangential, Venturi tube 13 is connected with Lavalle shape playpipe 10, on Lavalle shape playpipe 10, be provided with coal powder entrance 8, the other end of Lavalle shape playpipe 10 is connected with secondary eddy flow wind distribution apparatus 4, secondary eddy flow wind distribution apparatus 4 middle parts are provided with the pulverized coal outlet 7 of the band expansion mouth of pipe 6, pulverized coal outlet is connected with 10 outlets of Lavalle shape playpipe, be provided with the wind pushing hole 5 of several arranged tangential around the pulverized coal outlet of secondary eddy flow wind distribution apparatus 4, wind pushing hole 5 communicates with Lavalle shape playpipe 10 ring cavity on every side in the housing.
Provide wind regime by blower fan 14, a wind is via an eddy flow wind distribution apparatus in the Venturi tube of center, an eddy flow wind hole by several arranged tangential enters Lavalle shape playpipe, to rotate at a high speed by the coal dust that coal powder entrance enters and send into pulverized coal outlet, secondary wind is sent into by the wind pushing hole of the arranged tangential on the secondary eddy flow wind distribution apparatus simultaneously, coal dust is rotated send into the interior ring cavity of shower nozzle at a high speed, coal dust enters its coal dust jet angle hole all around by the branch flow cone in the interior ring cavity, makes coal dust spray burning very uniformly.
Claims (1)
1, ring-like multistage rotational flow coal dust burner, it is characterized in that: the housing front end at device is provided with shower nozzle, be provided with the branch flow cone at the shower nozzle middle part, radial arrangement has coal dust jet angle hole around dividing flow cone, in housing, be provided with eddy flow wind distribution apparatus and secondary eddy flow wind distribution apparatus, one time eddy flow wind distribution apparatus is positioned at the air intake oral-lateral, be arranged in Venturi tube, on an eddy flow wind distribution apparatus, be provided with an eddy flow wind hole of several arranged tangential, Venturi tube is connected with Lavalle shape playpipe, on the shape playpipe of Lavalle, be provided with coal powder entrance, the other end of Lavalle shape playpipe is connected with secondary eddy flow wind distribution apparatus, secondary eddy flow wind distribution apparatus middle part is provided with the pulverized coal outlet of the band expansion mouth of pipe, pulverized coal outlet is connected with the outlet of Lavalle shape playpipe, be provided with the wind pushing hole of several arranged tangential around the pulverized coal outlet of secondary eddy flow wind distribution apparatus, wind pushing hole communicates with Lavalle shape playpipe ring cavity on every side in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200890334U CN2779250Y (en) | 2005-01-21 | 2005-01-21 | Cellular multi-stage rotary flow coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200890334U CN2779250Y (en) | 2005-01-21 | 2005-01-21 | Cellular multi-stage rotary flow coal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2779250Y true CN2779250Y (en) | 2006-05-10 |
Family
ID=36753337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200890334U Expired - Fee Related CN2779250Y (en) | 2005-01-21 | 2005-01-21 | Cellular multi-stage rotary flow coal burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2779250Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011035604A1 (en) * | 2009-09-27 | 2011-03-31 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and boiler with the same |
| CN101761924B (en) * | 2008-12-23 | 2012-08-29 | 烟台龙源电力技术股份有限公司 | Pulverized coal concentrator and pulverized coal burner applying same |
| CN112902173A (en) * | 2021-02-07 | 2021-06-04 | 哈尔滨工业大学 | Device for burning up solid waste by adopting high-temperature primary and secondary air |
-
2005
- 2005-01-21 CN CNU2005200890334U patent/CN2779250Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761924B (en) * | 2008-12-23 | 2012-08-29 | 烟台龙源电力技术股份有限公司 | Pulverized coal concentrator and pulverized coal burner applying same |
| WO2011035604A1 (en) * | 2009-09-27 | 2011-03-31 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and boiler with the same |
| CN112902173A (en) * | 2021-02-07 | 2021-06-04 | 哈尔滨工业大学 | Device for burning up solid waste by adopting high-temperature primary and secondary air |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060510 Termination date: 20130121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |