CN201787598U - Chain grate boiler energy-saving combustion chamber - Google Patents
Chain grate boiler energy-saving combustion chamber Download PDFInfo
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- CN201787598U CN201787598U CN2010202227892U CN201020222789U CN201787598U CN 201787598 U CN201787598 U CN 201787598U CN 2010202227892 U CN2010202227892 U CN 2010202227892U CN 201020222789 U CN201020222789 U CN 201020222789U CN 201787598 U CN201787598 U CN 201787598U
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- chain grate
- combustion chamber
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Abstract
The utility model discloses a chain grate boiler energy-saving combustion chamber, which comprises a chain grate. A combustion chamber is arranged above the chain grate, a preheating area, a combustion area, a reduction combustion area and a secondary combustion area are sequentially arranged from a coal inlet to a coal outlet of the combustion chamber, a front arch is arranged on the upper portion of the preheating area, a boiler drum is arranged on the upper portion of the combustion area, rear arches are arranged on the upper portions of the reduction combustion area and the secondary combustion area, composite heat storage temperature rising radiation layers are respectively arranged on the front arch and the rear arches, the distance between the highest point of the front arch and the chain grate is not larger than four times of the thickness of a fire coal layer, and the distance between the highest point of each rear arch and the chain grate is not larger than three times of the thickness of the fire coal layer. The chain grate boiler energy-saving combustion chamber has the advantages of sufficient combustion, high heat efficiency, little emission, low pollution and fine economic benefit.
Description
Technical field
The utility model relates to a kind of boiler furnace, relates in particular to a kind of combustion chamber of chain grate boiler.
Background technology
Coal is China's main energy sources, accounts for more than 70% of the disposable total energy consumption of China, about 50.4 ten thousand of the Industrial Boiler during China uses at present, and the annual raw coal that consumes accounts for 1/3rd of gross annual output amount.In today that non-renewable energy resources day is becoming tight, the consumption reduction of economizing on coal has become the key subjects that boiler industry faces, and along with the enhancing of environmental protection consciousness, minimizing is polluted, the reduction soot emissions are extremely urgent.
Traditional chain grate boiler ubiquity two large problems: one, energy utilization rate is low, waste is serious, medium small boiler particularly, evenly heat efficient has only about 50%, because this class boiler quantity is big, so the energy resource consumption that causes is very big; Its two, discharging exceeds standard, environmental pollution is serious, directly influences human health and sustainable economic development.Trace it to its cause is because traditional chain grate boiler major part is burning II class, the design of III class bituminous coal, this class boiler is to the bad adaptability of coal, and how be used to supply the coal of combustion of industrial boiler based on volatility very low II class anthracite and the very poor I class bituminous coal of ature of coal, it is numerous and diverse changeable to add China's coal and ature of coal, mixed coal, colm, mingle coal and flood market, these reasons have caused that conventional boiler undercapacity, the thermal efficiency are low, the phenomenon of waste fuel.In addition, from the structure of conventional boiler combustion chamber, the preceding pitch of arch and the angle design of this class boiler are reasonable inadequately, can not the usable reflection heat radiation and it is gathered the preheating zone, the heat storage capacity deficiency, it is slow to make the coal newly add light, when running into colm even cutoff takes place; High because rear arch is short, the high-temperature flue gas at rear portion can not be pushed to furnace front help to catch fire, more can not make high-temperature flue gas carry out disturbance, stop, to increase fire box temperature, therefore cause the situation that coal combustion is insufficient, boiler slag carbon content is high, discharging exceeds standard.
The utility model content
Technical problem to be solved in the utility model provides a kind of sufficient combustion, thermal efficiency height, discharges less, pollutes low, good in economic efficiency chain grate boiler energy-saving combustion chamber.
For solving the problems of the technologies described above, the technical solution of the utility model is: chain grate boiler energy-saving combustion chamber, comprise traveling-grate stoker, described chain fire-gate top is provided with the combustion chamber, described combustion chamber is disposed with preheating zone, combustion zone, reduction combustion zone and combustion zone again from coal feed point to slag notch, the top of described preheating zone is provided with face arch, the top of described combustion zone is provided with drum, the top of described reduction combustion zone and described combustion zone again is provided with rear arch, is respectively arranged with composite heat storage on described face arch and the described rear arch and heats radiating layer; Distance between the peak of described face arch and the described traveling-grate stoker is not more than four times of coal-fired layer thickness; Distance between the peak of described rear arch and the described traveling-grate stoker is not more than three times of coal-fired layer thickness.
As optimized technical scheme, it is the high-temperature composite material coating that described composite heat storage heats radiating layer.
As optimized technical scheme, the arch of described rear arch length is 2.5～4.0 times of described combustion zone length, and described face arch length is 1.0～1.5 times of described combustion zone length.
Owing to adopted technique scheme, chain grate boiler energy-saving combustion chamber, comprise traveling-grate stoker, described chain fire-gate top is provided with the combustion chamber, described combustion chamber is disposed with preheating zone, combustion zone, reduction combustion zone and combustion zone again from coal feed point to slag notch, the top of described preheating zone is provided with face arch, the top of described combustion zone is provided with drum, the top of described reduction combustion zone and described combustion zone again is provided with rear arch, is respectively arranged with composite heat storage on described face arch and the described rear arch and heats radiating layer; Distance between the peak of described face arch and the described traveling-grate stoker is not more than four times of coal-fired layer thickness; Distance between the peak of described rear arch and the described traveling-grate stoker is not more than three times of coal-fired layer thickness.The preceding pitch of arch is low, helps accumulation of heat, improves the fire box temperature of preheating zone; Rear arch is low and grow, and helps pushing the high-temperature flue gas at rear portion to furnace front and helps to catch fire, and can make high-temperature flue gas carry out disturbance, stop, to increase fire box temperature, makes burning more abundant, thorough; The composite heat storage that is provided with on face arch and the rear arch heats radiating layer, can significantly improve heat storage capacity, and heat radiation is arrived the preheating zone, makes that furnace temperature is higher, igniting is easier, promotes new burning of coal.The utlity model has sufficient combustion, thermal efficiency height, discharge less, pollute low, good in economic efficiency advantage.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
Among the figure: the 1-traveling-grate stoker; The 2-coal feed point; The 3-preheating zone; The 4-combustion zone; 5-reduces the combustion zone; 6-is the combustion zone again; The 7-drum; The 8-face arch; The 9-rear arch; The 10-composite heat storage heats radiating layer; The 11-slag notch.
The specific embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in drawings, chain grate boiler energy-saving combustion chamber, comprise traveling-grate stoker 1, the top of described traveling-grate stoker 1 is provided with the combustion chamber, described combustion chamber 11 is disposed with preheating zone 3 from coal feed point 2 to slag notch, combustion zone 4, reduction combustion zone 5 and combustion zone 6 again, the top of described preheating zone 3 is provided with face arch 8, the top of described combustion zone 4 is provided with drum 7, the top of described reduction combustion zone 5 and described combustion zone again 6 is provided with rear arch 9, be respectively arranged with composite heat storage on described face arch 8 and the described rear arch 9 and heat radiating layer 10, described composite heat storage heats radiating layer 10 and is the high-temperature composite material coating, in the present embodiment, described high-temperature composite material coating composition mainly comprises carborundum, aluminium oxide, additive such as zirconia and alumina cement, the highest can anti-1700 ℃ high temperature, during boiler work, the temperature after the accumulation of heat of high-temperature composite material coating is higher than former furnace building material 100-200 ℃, can produce strong heat radiation to new coal-fired layer.
Distance between the peak of described face arch 8 and the described traveling-grate stoker 1 is not more than four times of coal-fired layer thickness; Distance between the peak of described rear arch 9 and the described traveling-grate stoker 1 is not more than three times of coal-fired layer thickness.The long scope of the arch of described rear arch 9 can be 2.5～4.0 times of described combustion zone 4 length, described face arch 8 length ranges can be 1.0～1.5 times of described combustion zone 4 length, in the present embodiment, the arch length of described rear arch 9 is 3 times of described combustion zone 4 length, described face arch 8 length are 1.2 times of described combustion zone 4 length, the inner surface configuration of face arch 8 is the hyperbolic-parabolic type, helps heat radiation is focused on the coal-fired layer of preheating zone 3.
Face arch 8 is highly low, helps accumulation of heat, has improved the fire box temperature of preheating zone 3; Rear arch 9 is low and grow, and helps pushing the high-temperature flue gas at rear portion to furnace front to help to catch fire, and can make high-temperature flue gas carry out disturbance, stop, to increase fire box temperature, makes burning more abundant, thorough; The composite heat storage that is provided with on face arch 8 and the rear arch 9 heats radiating layer 10, can significantly improve heat storage capacity, and heat radiation is arrived the preheating zone, makes that furnace temperature is higher, igniting is easier, promotes new burning of coal.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
All are from design of the present utility model, and the structure conversion of having done without creative work all drops within the protection domain of the present utility model.
Claims (3)
1. chain grate boiler energy-saving combustion chamber, comprise traveling-grate stoker, described chain fire-gate top is provided with the combustion chamber, described combustion chamber is disposed with preheating zone, combustion zone, reduction combustion zone and combustion zone again from coal feed point to slag notch, the top of described preheating zone is provided with face arch, the top of described combustion zone is provided with drum, the top of described reduction combustion zone and described combustion zone again is provided with rear arch, it is characterized in that: be respectively arranged with composite heat storage on described face arch and the described rear arch and heat radiating layer; Distance between the peak of described face arch and the described traveling-grate stoker is not more than four times of coal-fired layer thickness; Distance between the peak of described rear arch and the described traveling-grate stoker is not more than three times of coal-fired layer thickness.
2. chain grate boiler energy-saving combustion as claimed in claim 1 chamber is characterized in that: it is the high-temperature composite material coating that described composite heat storage heats radiating layer.
3. chain grate boiler energy-saving combustion as claimed in claim 1 chamber is characterized in that: the arch length of described rear arch is 2.5～4.0 times of described combustion zone length, and described face arch length is 1.0～1.5 times of described combustion zone length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202227892U CN201787598U (en) | 2010-06-01 | 2010-06-01 | Chain grate boiler energy-saving combustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202227892U CN201787598U (en) | 2010-06-01 | 2010-06-01 | Chain grate boiler energy-saving combustion chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201787598U true CN201787598U (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202227892U Expired - Fee Related CN201787598U (en) | 2010-06-01 | 2010-06-01 | Chain grate boiler energy-saving combustion chamber |
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|---|---|
| CN (1) | CN201787598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114540A (en) * | 2018-08-20 | 2019-01-01 | 无锡中正锅炉有限公司 | A kind of efficiently low-nitrogen discharged chain grate boiler |
-
2010
- 2010-06-01 CN CN2010202227892U patent/CN201787598U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114540A (en) * | 2018-08-20 | 2019-01-01 | 无锡中正锅炉有限公司 | A kind of efficiently low-nitrogen discharged chain grate boiler |
| CN109114540B (en) * | 2018-08-20 | 2024-01-26 | 无锡中正锅炉有限公司 | High-efficiency low-nitrogen-emission chain grate boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20140601 |