CN201527165U - Positive burning device - Google Patents
Positive burning device Download PDFInfo
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- CN201527165U CN201527165U CN 200920274034 CN200920274034U CN201527165U CN 201527165 U CN201527165 U CN 201527165U CN 200920274034 CN200920274034 CN 200920274034 CN 200920274034 U CN200920274034 U CN 200920274034U CN 201527165 U CN201527165 U CN 201527165U
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- burner
- combustion
- blower
- blast stove
- drying
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Abstract
The utility model discloses a positive burning device and technology thereof with features of continous operation, high thermal efficiency, stable and convenient operation, automatic control, larger-scale production, reduced floor space, low investment, lower operation and maintenance cost. The positive burning device has ideal effect in the aspect for providing the stable heat source satisfying the fluid-bed drying technology requirement for a drying system production. The positive burning device comprises a burning blower, a drying blower, a burner and a combustion gas hot blast stove, wherein the burning blower and the drying blower are connected with the burner and the burner is accessed with combustion gas and the burner is also connected with the combustion gas hot blast stove and the high-temperature high-pressure flue gas of the hot blast stove is sent to the fluid-bed.
Description
Technical field
The utility model relates to a kind of burner, the positive-pressure combustion device under a kind of specifically malleation operating mode.
Prior art
Drying operation is an operation that power consumption is huge, and drying cost derives from energy consumption greatly.Dry extensive with the burner energy sources, lump coal, coal dust, biomass fuel, fuel oil, combustion gas and electric energy, solar energy and steam etc. are arranged, according to the difference of the energy, the principle of burner and structure have very big-difference.
(1) coal combustion device
Coal-burning installation can be divided into grate furnace, outstanding burner and fluidized bed furnace according to the combustion system difference.
Outstanding burner is that coal is ground very little particle, delivers to a kind of burner of burner hearth internal combustion after air mixes by coal nozzle.Because coal burns with powdery, thus big with the contact area of air, improved fuel and Air mixing condition, after-flame in the short period of time.Therefore, outstanding burner efficiency of combustion height, calorific intensity is big, and Load Regulation is convenient.Outstanding burner is a kind of combustion system that big or middle now capacity boiler generally adopts.
Boiling furnace combustion is with grate firing and the outstanding a kind of combustion system that combines that fires.During operation, coal is fractured into the following particle of 8～12mm earlier and sends burner hearth again to, and high-speed air, blows afloat fuel bed come by the blast cap on the air distribution plate from furnace bottom.Because it is tapered that burner hearth is shaped as, following little going up greatly, the top wind speed is littler than bottom wind speed.Fuel is taken up by air-flow in the bottom of burner hearth, because air velocity reduces and falls again, has formed the boiling bed that the coal grain stirs up and down on the top of burner hearth.The coal grain moves up and down and collision mutually at boiling section, has strengthened and Air mixing, has strengthened combustion process.
2 biomass fuel combustion devices
Biomass fuel combustion device mainly contains layer combustion device, fluidized bed combustion device and diffusion combustion burner.
The layer combustion device can adopt the stratiform burning device of the same form of lump coal.But with stratiform burner firing biomass fuel, when fuel was delivered on the fire grate by hopper, impossible even distribution as coal form bed of material density inequality easily on fire grate, thereby it was irregular to form cloth wind.The air short circuit of thin layer place can not be used for fully burning; And the thick-layer place needs a large amount of air to be used for burning.Because resistance is bigger here, thereby the air capacity required air capacity of burning is few.Therefore biomass fuel stratiform burning control ratio is difficult.But living beings layer combustion wind furnace is compared with other hot-blast stove, and cost is low, and fuel cost is low.
Pulverize artifact matter fuel and be shapes such as linear, polygon, dihedral, equivalent diameter differs greatly, and is subjected to the broken easily and distortion of air-flow effect, can not carry out fluidisation separately in fluid bed.Usually add cheap inert material,, make itself and living beings formation binary mixture, thereby solved the problem that living beings are difficult to fluidisation as sand, dolomite etc.
Diffusion combustion method is to utilize the biomass fuel (rice husk, stalk in small, broken bits etc.) after machine power or wind-force will be pulverized to disperse, and burns in air then.This stove is comparatively abundant owing to biomass fuel in the combustion chamber contacts with air, so burning fully, temperature is also more stable.
3 burning apparatus for combustion of liquid fuel
Critical component is a burner in the liquid burner, and the form of oil burner mainly is divided into vaporation-type and atomization type.The major part of industrial usefulness is the atomization type burner.Be broadly divided into by atomization method: pressure jet apparatus, high-pressure atomization nozzle, low pressure atomization nozzle and combining nozzle four classes.Wherein high pressure nozzle and low-pressure nozzle are used wider aspect the industry heating.Buner system mainly comprises: oil supply tank, oil strainer, flowmeter, atomizer, oil feed pump, oil pressure adjusting valve and oily pipe arrangement etc.
4 gas fuel burning apparatus
Gas burner can be classified from different perspectives, can be divided into two big class, i.e. flaming combustion device and flameless burners according to the difference of combustion method.The gas fuel combustion process can be divided three phases, promptly mixes, catches fire and burn.The mixed process of fuel is much slower than combustion process.Therefore, the principal element of decision gas fuel combustion mode and effect is a mixed process.
The present widely used burner of China exists also that the thermal efficiency is low, steel consumption is big, service life is short and shortcoming such as the hot blast wind resistance is big.
The utility model content
The utility model is for overcoming above-mentioned the deficiencies in the prior art, a kind of continuously-running is provided, thermal efficiency height, stable, easy to operate, can realize automatic control, be fit to fairly large production, and floor space reduce, invest low, the positive-pressure combustion device that operation and maintenance cost is low, it has desirable effect in that the steady heat source side face that satisfies the fluid bed drying process requirement is provided for drying system production.
For achieving the above object, the utility model adopts following technical scheme:
A kind of positive-pressure combustion device, it is mainly by combustion blower, the drying drum blower fan, burner, fuel gas hot-blast stove is formed, and combustion blower is connected with burner with the drying drum blower fan, and burner also inserts combustible gas; Burner also is connected with fuel gas hot-blast stove, and the high temperature and high pressure flue gas of combustion gas wind furnace is sent into fluid bed.
A kind of burning process of positive-pressure combustion device, its process is:
1) from combustible gas house steward's combustible gas, mixes, enter burner with the combustion air of carrying by combustion blower;
2) through the high-temperature flue gas of burner combustion generation and plant air mixed combustion in fuel gas hot-blast stove of advancing from drying drum blower fan drum, make and produce the pressure combustion operating mode in the hot-blast stove, the high temperature and high pressure flue gas that forms is sent into the fluid bed of drying nest by hot air duct.
3) in the fluidized bed drying district, hot flue gas makes material keep normal fluidisation attitude on the one hand, carries out heat exchange with material on the other hand, adds thermal material and makes water evaporates, and the waste gas after the cooling carries the moisture content that material evaporates and leaves fluid bed dryer.
The utility model has solved the common burner of present employing, do not reach the pressure of technological requirement through the high-temperature flue gas of burner combustion generation, can't make material keep normal fluidisation attitude, cause dryer section often to adopt rotary kiln drying equipment, so just caused a whole set of technology investment big, maintenance difficult, the thermal efficiency is low, problems such as energy consumption height.Use the burner of the utility model scheme, just can mate fluidized bed drying equipment, so just realized small investment, maintenance load is little, and can improve thermal efficiency 2-3 doubly.
The beneficial effects of the utility model:
System's continuously-running, thermal efficiency height, stable, easy to operate, can realize automatic control, be fit to fairly large production, and floor space reduces, to invest lowly, operation and maintenance cost is low.In the drying system production process, the utility model technology provides the stable thermal source that satisfies technological requirement, has desirable effect.
Description of drawings
Fig. 1 is process chart signal of the present utility model.
Wherein, 1. combustion blower, 2. drying drum blower fan, 3. burner, 4. fuel gas hot-blast stove, 5. fluid bed dryer.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Among Fig. 1, positive-pressure combustion device constitutes mainly by combustion blower 1, drying drum blower fan 2, and burner 3 and fuel gas hot-blast stove 4 are formed, in order to realize providing the function of thermal source.Fuel gas hot-blast stove 4 is connected with fluid bed dryer 5.
Technical process of the present utility model is:
Combustible gas from the combustible gas house steward, mix with the combustion air of carrying by combustion blower 1, after entering burner 3, the high-temperature flue gas that 3 burnings produce through burner and plant air 4 mixed combustions in fuel gas hot-blast stove of advancing from drying drum blower fan 2 drums, make and produce the pressure combustion operating mode in the hot-blast stove, the high temperature and high pressure flue gas that forms is sent into the fluid bed dryer 5 of drying nest by hot air duct.At the dry section of fluid bed dryer 5, hot flue gas makes material keep normal fluidisation attitude on the one hand, carries out heat exchange with material on the other hand, adds thermal material and makes water evaporates, and the waste gas after the cooling carries the moisture content that material evaporates and leaves fluid bed dryer 5.
Claims (1)
1. a positive-pressure combustion device is characterized in that, it is mainly by combustion blower, the drying drum blower fan, and burner, fuel gas hot-blast stove is formed, and combustion blower is connected with burner with the drying drum blower fan, and burner also inserts combustible gas; Burner also is connected with fuel gas hot-blast stove, and the high temperature and high pressure flue gas of combustion gas wind furnace is sent into fluid bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920274034 CN201527165U (en) | 2009-11-24 | 2009-11-24 | Positive burning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920274034 CN201527165U (en) | 2009-11-24 | 2009-11-24 | Positive burning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201527165U true CN201527165U (en) | 2010-07-14 |
Family
ID=42518451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920274034 Expired - Fee Related CN201527165U (en) | 2009-11-24 | 2009-11-24 | Positive burning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201527165U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701763B (en) * | 2009-11-24 | 2011-03-16 | 山东天力干燥设备有限公司 | Positive-pressure combustion device and process thereof |
| CN102235813A (en) * | 2011-04-20 | 2011-11-09 | 江苏剑桥涂装工程有限公司 | Positive pressure type direct combustion hot-air furnace for baking finish house |
-
2009
- 2009-11-24 CN CN 200920274034 patent/CN201527165U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701763B (en) * | 2009-11-24 | 2011-03-16 | 山东天力干燥设备有限公司 | Positive-pressure combustion device and process thereof |
| CN102235813A (en) * | 2011-04-20 | 2011-11-09 | 江苏剑桥涂装工程有限公司 | Positive pressure type direct combustion hot-air furnace for baking finish house |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG TIANLI DRYING CO., LTD. Free format text: FORMER NAME: TIANLI DRYING EQUIPMENT CO., LTD., SHANDONG |
|
| CP03 | Change of name, title or address |
Address after: 250101, Shandong Province, Ji'nan hi tech Zone, No. 554 Feng Feng Road, environmental science and Technology Park, building 8, Feng Feng building, room 230 Patentee after: Shandong Tianli Drying Co., Ltd. Address before: Three Cun Cai Shi Zhen Xi Cai Shi Licheng District 250103 Shandong city of Ji'nan province No. 403 Patentee before: Tianli Drying Equipment Co., Ltd., Shandong |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20181124 |