CN100394105C - Coal firing equipment with single rotational flow - Google Patents
Coal firing equipment with single rotational flow Download PDFInfo
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- CN100394105C CN100394105C CNB2006100451904A CN200610045190A CN100394105C CN 100394105 C CN100394105 C CN 100394105C CN B2006100451904 A CNB2006100451904 A CN B2006100451904A CN 200610045190 A CN200610045190 A CN 200610045190A CN 100394105 C CN100394105 C CN 100394105C
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- burner hearth
- coal
- hearth
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Abstract
The present invention relates to a single-swirl coal-burning device which comprises a burning hearth, a fire grate, a coaling gear and a high-temperature gas outlet, wherein the top of the cross section of the hearth is in the shape of an arch which forms the swirl burning, the side wall of the hearth is provided with a burning supporting air inlet which is communicated with the hearth, the burning supporting air inlet is tangential to the arch on the top of the hearth, and the rear of the hearth is communicated with the high-temperature gas outlet. The single-swirl coal-burning device of the present invention has the advantages of simple and reasonable structure and low manufacture cost, and thoroughly solves the problem of black smoke exhaust of burning coal. Exhaust gas is colorless, transparent, clean and pollution free, a pure smokeless efficiency is achieved, and the Ringelmann blackness is zero. According to the difference in coal quality, the coal can be saved by 15% to 33%, the coal resource is saved, the environment is protected, and the economical benefit and social benefit of the present invention are notable.
Description
Technical field
The present invention relates to a kind of improved coal-burning installation, belong to Thermal Equipment.
Background technology
With the coal-fired place that heat energy is provided as seen the coal-burning installation nothing to be surprised at, comprises boiler for domestic, Industrial Boiler, heat-conducting oil furnace and Industrial Stoves etc. everywhere.Fire coal is made fuel, flammable effective ingredient in the bituminous coal---fugitive constituent (accounting for 30%-35%), almost arrange to atmosphere with the form of black smoke all, environmental pollution and energy waste are very serious, solve the pollution that caused by coal burning problem and be always the doing one's utmost problem that solves and thirst for solving of people for these years, but never solve well.The general coal-burning installation between 125KW-2800KW (also claiming 0.125-2.8MW) of combustion power for example, the former coal consumption reaches 1,5 ton/24 hours, the latter's coal consumption reaches 13-15 ton/24 hour (calculating by workman's three or eight systems of going to work), coal-fired over-emitting black exhaust problem is quite serious, and the coal resource waste also is quite surprising.
Summary of the invention
The object of the present invention is to provide a kind of improved coal firing equipment with single rotational flow, simple and reasonable, can solve coal-fired over-emitting black exhaust problem, save coal resource, the protection environment.
Coal firing equipment with single rotational flow of the present invention, comprise burner hearth, fire grate, coaling gear and high-temperature gas outlet, the top of its burner hearth cross section is the arch that forms swirl flow combustion, the sidewall of burner hearth is fitted with the combustion-supporting air port of leading to burner hearth, the arch of combustion-supporting air port and roof of the furnace is tangent, and the rear portion of burner hearth is communicated with the high-temperature gas outlet.
Under the effect of the combustion air that enters from fire grate; at high temperature burn in coal seam on the fire grate; a large amount of tar steam; carbon monoxide; the black smoke of forming by small carbon granules and other hydrocarbon gas; form unburnt product; pour in the top together or deserve to be called the swirl flow combustion zone of portion; it is upper furnace; can claim " vortex furnace "; force high-temperature flue gas to form swirling eddy; the flammable swirling eddy of this strand is in atwirl process; be subjected to the boosting of the next combustion air in the combustion-supporting air channel of burner hearth sidewall (claiming the side-blown air channel) again; further be accelerated; airborne oxygen with entrainment at the imflammable gas of whirlpool the inside and other combustibles and mix consumingly and stir; the elemental that has possessed completing combustion: 1. essential temperature; 2. enough air capacities; 3. good mixing; 4. sufficient burning time; will inevitably cause fierce burning; produce a large amount of heat energy, make that the temperature in the vortex furnace improves more, it is more thoroughly perfect to burn; the billowing black smoke of traditional combustion equipment; in this " combustion mechanism " lining all by thorough after-flame; become heat energy and discharge, do not have black smoke, have only hot gas; save resource, protected environment.
Preferably burner hearth is divided into the two parts that communicate up and down, cross section is R shape, and burner hearth sidewall is provided with the combustion-supporting air channel of leading to upper furnace along the pin of R shape, and it is more abundant to burn, and preferably is equipped with the combustion-supporting air channel of leading to upper furnace along two pins.So-called R shape also can be anti-R shape, can form clockwise eddy flow burning and counterclockwise swirl flow combustion respectively.
Set up the combustion-supporting air channel of leading to lower hearth along the inclination pin of R shape, further promote burning preferably to be equipped with the combustion-supporting air channel of leading to lower hearth along two pins.
Cross section is the also just approximate pictograph of R shape structure to be described, can there be distortion to a certain degree to develop, two pins as R shape can be that symmetry tilts, can set up the combustion-supporting air channel of leading to lower hearth along two inclination pins, be that the side-blown air channel is all established in both sides, the cross section of vortex furnace can rounded ovalisation etc., burner hearth can be positioned at the middle part of body of heater, also can be positioned at the middle part of body of heater, especially during symmetrical structure, generally be positioned at the middle part, at this moment, R shape structure will develop into approximate Ω shape, or the like.
In practice, the longitudinal length and the transverse width of body of heater is set as required, when the longitudinal length of body of heater was big, combustion-supporting air channel can distribute on longitudinal length and be provided with severally, guarantees fully to burn.
Establish by intercepting the high temperature turbulent area that wall is separated at the rear portion of burner hearth, burner hearth and high temperature turbulent area communicate at the top, and the high-temperature gas outlet is located at the bottom of high temperature turbulent area, further promote fully burning.
In vortex furnace, the imflammable gas limit rotates the limit at a high speed and fiercely burns, because air-flow has from the higher-pressure region to the characteristic of low-pressure area diffusion, so the red-hot air-flow of high temperature that burning forms marches on towards the high temperature turbulent area fast, and turn immediately, take place to tear intensely to turn round and pulverize and collision, form some irregular air-flows, inertia by swirling eddy, these irregular air-flows continue rotary collision, in the high temperature turbulent area, form " turbulent flow " of the very high and quick disturbance of degree of filling, strengthened burning more.Also have some not have the after-flame composition in the burner hearth more or less if exist, here also can be by thorough combustion oxidation, high temperature gas flow pure, clean, colourless, tasteless after the burning comes out from high-temperature gas outlet high velocity jet.
To intercept coping and lean out, guarantee to obtain better swirl flow combustion effect to burner hearth one side.
For bigger coal-burning installation, R shape burner hearth can be arranged side by side two, and the lower hearth of two R shape burner hearths communicates, and communicates with the high temperature turbulent area respectively, realizes the two pass burning, improves burning capacity, is particularly suitable for the coal-burning installation of large-scale chain furnace grate.For large-scale coal-burning installation,, can increase supporting rib in order to strengthen structural strength.Increase the circulation cooling duct near supporting rib again, logical recirculated cooling water avoids the temperature of supporting rib too high, guarantees safe and reliable to operation.
Coaling gear among the present invention comprises from the manual coal of coal filling hole and coaling machine automatic stoking device etc.
Coal firing equipment with single rotational flow of the present invention; simple and reasonable; cheap, thoroughly solved coal-fired over-emitting black exhaust problem, the waste gas water white transparency of discharge, clean, pollution-free; reached pure smokeless effect; lingemann blackness is 0, can save coal-fired 15%-33% according to the difference of ature of coal, has both saved coal resource; protected environment again, economic benefit and obvious social benefit.
Description of drawings
Fig. 1, the embodiment of the invention 1 are combined in the cross-sectional structure schematic diagram under the application state.
Fig. 2, the embodiment of the invention 1 are combined in the vertical section structure schematic diagram under the application state.
Fig. 3, the embodiment of the invention 2 are combined in the cross-sectional structure schematic diagram under the application state.
Fig. 4, the embodiment of the invention 3 are combined in the cross-sectional structure schematic diagram under the application state.
Fig. 5, the embodiment of the invention 4 are combined in the cross-sectional structure schematic diagram under the application state.
Among the figure: 1, fire grate 2, coal-fired layer 3, lower hearth 4,8,9, combustion-supporting air channel 5, combustion-supporting air port 6, vortex furnace 7, refractory material 10, coal filling hole 11, intercept wall 12, high temperature turbulent area 13, high-temperature gas outlet 14, fire grate 15, lower hearth 16, vortex furnace 17, fire grate 18, lower hearth 19, vortex furnace 20, chain furnace grate 21, lower hearth 22, vortex furnace 23, circulation cooling duct 24, channel partition 25, supporting rib 26, vortex furnace 27, lower hearth F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, F13, combustion air.
The specific embodiment
The present invention is further illustrated below in conjunction with the embodiment accompanying drawing.
As Fig. 1, shown in Figure 2, coal firing equipment with single rotational flow of the present invention, comprise burner hearth, fire grate 1, coal filling hole 10 and high-temperature gas outlet 13, the top of its burner hearth cross section is the arch that forms swirl flow combustion, the sidewall of burner hearth is fitted with the combustion-supporting air port 5 of leading to burner hearth, combustion-supporting air port 7 is tangent with the arch of roof of the furnace, burner hearth is divided into the two parts that communicate up and down, cross section is R shape, comprise lower hearth 3 and upper furnace, upper furnace is called vortex furnace 6, and burner hearth sidewall is respectively equipped with the combustion-supporting air channel 4 of leading to upper furnace along two pins of R shape, 8, inclination pin along R shape also is provided with the combustion-supporting air channel 9 of leading to lower hearth, and the rear portion of burner hearth is communicated with high-temperature gas outlet 13.
Be provided with at the rear portion of burner hearth by intercepting the high temperature turbulent area 12 that wall 11 is separated, the top that intercepts wall 11 leans out to burner hearth one side, and burner hearth and high temperature turbulent area 12 communicate at the top, and high-temperature gas outlet 13 is located at the bottom of high temperature turbulent area 12.
Running:
Under the effect of the combustion air F3 that enters from fire grate 1, at high temperature burn in coal seam 2 on the fire grate 1, a large amount of tar steam, carbon monoxide, the black smoke of forming by small carbon granules and other hydrocarbon gas, form unburnt product, pour in the top together or deserve to be called the swirl flow combustion zone of portion, it is vortex furnace 6, force high-temperature flue gas to form swirling eddy, the flammable swirling eddy of this strand is in atwirl process, be subjected to the next combustion air F1 in side-blown air channel of burner hearth sidewall again, the boosting of F2, further be accelerated, airborne oxygen with entrainment at the imflammable gas of whirlpool the inside and other combustibles and mix consumingly and stir, the elemental that has possessed burning: 1. essential temperature, 2. enough air capacities, 3. good mixing, 4. sufficient burning time, coal-fired fierce burning, produce a large amount of heat energy, make the temperature in the vortex furnace improve more, it is more thoroughly perfect to burn, subsequently, the red-hot air-flow of high temperature that burning forms marches on towards high temperature turbulent area 12 fast, and turn immediately, take place to tear intensely to turn round and pulverize and collision, form some irregular air-flows, in high temperature turbulent area 12, form " turbulent flow " of the very high and quick disturbance of degree of filling, strengthened burning more.Also have some not have the after-flame composition in the burner hearth more or less if exist, here also can be by thorough combustion oxidation, later pure, clean, colourless, the tasteless high temperature gas flow of burning exports 13 high velocity jet from high-temperature gas and comes out, and the firing equipment that is required heat is quoted.
Among the present invention, cloth wind box can be passed through in each combustion-supporting air channel, realizes that as required cloth wind distributes, and provides cloth pneumatic power by same power source, simplifies auxiliary equipment.
Air feed system can be equipped with the automation frequency-changing control system, realizes automation mechanized operation.Mode as the available frequency control of adjusting of wind supply quantity solves, that is changes the method control wind supply quantity of the rotating speed of blower fan by the frequency that changes fan power.Utilize flue gas sensor (the industrial electronic retail department all has commercially available), as zirconium dioxide flue gas sensor, it presents " gas sensitive effect " to carbon monoxide, as long as it is exactly anoxic that flue gas is arranged, as long as anoxic just certainly leads to carbon monoxide, so the content of detection CO gas how much, also just directly reflected " air distribution coefficient " and the combustion conditions of combustion apparatus inside.The content of CO gas is become on the voltage signal input terminal that voltage signal is input to frequency converter, can utilize the voltage signal controlled frequency to change, the frequency conversion out-put supply is exactly the power supply of air blast.
Fig. 3, two kinds of distortion that are cross section is R shape structure respectively shown in Figure 4 develop structures, and the operating mode operation logic is the same.
Shown in Figure 5 is the cross-sectional structure that two R shape burner hearths arranged side by side are arranged, 22,26 and two lower hearths that communicate 27,27 of two vortex furnaces are arranged, fire grate is a chain furnace grate 20, during application, be preferably in logical recirculated cooling water in the circulation cooling duct 23, be separated by by channel partition 24 below, prevent that supporting rib 25 place's equitemperatures are too high, influence bearing strength.Introducing can be concentrated in middle combustion-supporting air channel, and combustion air F4 can inject in the vortex furnace 22,26 on both sides respectively, and the operating mode operation logic is the same, repeats no more.
Claims (7)
1. coal firing equipment with single rotational flow, comprise burner hearth, fire grate, coaling gear and high-temperature gas outlet, the top that it is characterized in that the burner hearth cross section is the arch that forms swirl flow combustion, burner hearth is divided into the two parts that communicate up and down, cross section is R shape, burner hearth sidewall is provided with the combustion-supporting air channel of leading to upper furnace along the pin of R shape, and the arch of combustion-supporting air port and roof of the furnace is tangent, and the rear portion of burner hearth is communicated with the high-temperature gas outlet.
2. coal firing equipment with single rotational flow according to claim 1 is characterized in that burner hearth sidewall is equipped with the combustion-supporting air channel of leading to upper furnace along two pins of R shape.
3. coal firing equipment with single rotational flow according to claim 1 is characterized in that burner hearth sidewall is provided with the combustion-supporting air channel of leading to lower hearth along the pin of R shape.
4. coal firing equipment with single rotational flow according to claim 1 is characterized in that burner hearth sidewall is equipped with the combustion-supporting air channel of leading to lower hearth along two pins of R shape.
5. according to claim 1,2,3 or 4 described coal firing equipment with single rotational flow, it is characterized in that the rear portion of burner hearth is provided with by intercepting the high temperature turbulent area that wall is separated, burner hearth and high temperature turbulent area communicate at the top, and the high-temperature gas outlet is located at the bottom of high temperature turbulent area.
6. coal firing equipment with single rotational flow according to claim 5 is characterized in that intercepting coping and leans out to burner hearth one side.
7. coal firing equipment with single rotational flow according to claim 6 is characterized in that R shape burner hearth has arranged side by side two, and the lower hearth of two R shape burner hearths communicates, and communicates with the high temperature turbulent area respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100451904A CN100394105C (en) | 2006-06-29 | 2006-06-29 | Coal firing equipment with single rotational flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100451904A CN100394105C (en) | 2006-06-29 | 2006-06-29 | Coal firing equipment with single rotational flow |
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| Publication Number | Publication Date |
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| CN1873330A CN1873330A (en) | 2006-12-06 |
| CN100394105C true CN100394105C (en) | 2008-06-11 |
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| CNB2006100451904A Expired - Fee Related CN100394105C (en) | 2006-06-29 | 2006-06-29 | Coal firing equipment with single rotational flow |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545307A (en) * | 1984-04-23 | 1985-10-08 | Babcock-Hitachi Kabushiki Kaisha | Apparatus for coal combustion |
| JPS61233081A (en) * | 1985-04-09 | 1986-10-17 | Mitsubishi Heavy Ind Ltd | Coal gasifying device of pressure jet bed type |
| CN2079259U (en) * | 1990-01-31 | 1991-06-19 | 常熟市喷嘴厂 | Quick burning device |
| RU2210032C2 (en) * | 2000-12-28 | 2003-08-10 | Карпенко Евгений Иванович | Method of plasma ignition of pulverized-coal fuel (variants) and plasma pulverized-coal burner for realization of this method |
| CN1707160A (en) * | 2005-05-23 | 2005-12-14 | 哈尔滨工业大学 | W-shape flame furnace with gradation coal burner |
| CN1763426A (en) * | 2005-09-30 | 2006-04-26 | 王树洲 | Double swirl-flow combustion apparatus for industrial boiler and kiln |
| CN2919051Y (en) * | 2006-06-29 | 2007-07-04 | 王树洲 | Single vortex coal-burning installation |
-
2006
- 2006-06-29 CN CNB2006100451904A patent/CN100394105C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545307A (en) * | 1984-04-23 | 1985-10-08 | Babcock-Hitachi Kabushiki Kaisha | Apparatus for coal combustion |
| JPS61233081A (en) * | 1985-04-09 | 1986-10-17 | Mitsubishi Heavy Ind Ltd | Coal gasifying device of pressure jet bed type |
| CN2079259U (en) * | 1990-01-31 | 1991-06-19 | 常熟市喷嘴厂 | Quick burning device |
| RU2210032C2 (en) * | 2000-12-28 | 2003-08-10 | Карпенко Евгений Иванович | Method of plasma ignition of pulverized-coal fuel (variants) and plasma pulverized-coal burner for realization of this method |
| CN1707160A (en) * | 2005-05-23 | 2005-12-14 | 哈尔滨工业大学 | W-shape flame furnace with gradation coal burner |
| CN1763426A (en) * | 2005-09-30 | 2006-04-26 | 王树洲 | Double swirl-flow combustion apparatus for industrial boiler and kiln |
| CN2919051Y (en) * | 2006-06-29 | 2007-07-04 | 王树洲 | Single vortex coal-burning installation |
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| Publication number | Publication date |
|---|---|
| CN1873330A (en) | 2006-12-06 |
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Granted publication date: 20080611 |