CN103234216A - Secondary air arranging structure of straw boiler - Google Patents
Secondary air arranging structure of straw boiler Download PDFInfo
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- CN103234216A CN103234216A CN2013101208017A CN201310120801A CN103234216A CN 103234216 A CN103234216 A CN 103234216A CN 2013101208017 A CN2013101208017 A CN 2013101208017A CN 201310120801 A CN201310120801 A CN 201310120801A CN 103234216 A CN103234216 A CN 103234216A
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- burner hearth
- arch
- secondary air
- furnace chamber
- fire grate
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Abstract
The invention provides a secondary air arranging structure of a straw boiler, which is characterized in that the fuel is enabled to be fully mixed with the wind; the burning is completely; the burning efficiency is improved; reducing air can be prevented from producing in the hearth; and slag-bonding in the hearth can be reduced. The secondary air arranging structure comprises a furnace chamber, wherein a furnace grate area is arranged at the lower part of the furnace chamber; a water cooled furnace grate wall is arrange in the furnace grate area; and a spiral feeding machine is communicated to the furnace chamber. The structure is characterized in that a front arch is formed in the front wall of the furnace chamber; a back arch is formed in the back wall of the furnace chamber; both the front arch and the back arch are positioned at the upper part of the furnace grate area; two layers of secondary air spouts are formed in the front arch; and two layers of secondary air spouts are formed in the back arch; and a small secondary air spout is formed in the position of the lower part of the furnace chamber communicated with the spiral feeding machine.
Description
Technical field
The present invention relates to the technical field of straw boiler structure, be specially a kind of secondary wind arrangement of straw boiler.
Background technology
Because the stalk fuel calorific value is lower, the moisture height is equivalent to the brown coal in the fossil fuel.What straw boiler adopted is the grate firing mode, and the characteristic of based on fuel and combustion system need control fire grate thermic load and furnace load all in lower level.Furnace outlet has enough height apart from grate surface, and flue gas time of staying in burner hearth is prolonged, and guarantees the volatile matter after-flame that produces after the stalk decomposes also can make meticulous stalk particle and CO after-flame in burner hearth.Existing straw boiler, its fuel can't fully mix with wind, incomplete combustion, efficiency of combustion is low, easily produces reducibility gas in the burner hearth, makes slagging scorification in the burner hearth.
Summary of the invention
At the problems referred to above, the invention provides a kind of secondary wind arrangement of straw boiler, it makes fuel fully mix with wind, and burning improves efficiency of combustion fully, prevents from producing reducing atmosphere in the burner hearth, alleviates the slagging scorification in the burner hearth.
A kind of secondary wind arrangement of straw boiler, its technical scheme is such: it comprises burner hearth, the bottom of described burner hearth is provided with the fire grate district, described fire grate is furnished with the fire grate water-cooling wall in the district, screw(-type) feeder is communicated to described burner hearth, it is characterized in that: the front wall of described burner hearth is provided with face arch, the back wall of described burner hearth is provided with rear arch, described face arch, rear arch all is positioned at the top in described fire grate district, be furnished with two-layer overfire air port on the described face arch, be furnished with two-layer twice wind snout on the described rear arch, the arranged beneath that described screw(-type) feeder is communicated with the position of described burner hearth has the little spout of secondary wind.
After adopting structure of the present invention, because the front wall of the top in fire grate district has been arranged two-layer overfire air port, back wall paper has been put two-layer overfire air port, can fully scratch inner flue gas of the stove, the abundant mixing of strength imparting material and air, and the time of staying of prolong smoke in stove; And below screw(-type) feeder, designed the little spout of secondary wind, to help material seeding, make stalk on fire grate, evenly to distribute, it makes fuel fully mix with wind, and burning improves efficiency of combustion fully, prevent from producing reducing atmosphere in the burner hearth, alleviate the slagging scorification in the burner hearth.。
Description of drawings
Fig. 1 is front view structural representation of the present invention.
The specific embodiment
See Fig. 1, it comprises burner hearth 1, the bottom of burner hearth 1 is provided with fire grate district 2, is furnished with fire grate water-cooling wall 3 in the fire grate district 2, and screw(-type) feeder 4 is communicated to burner hearth 1, the front wall of burner hearth 1 is provided with face arch 5, the back wall of burner hearth 1 is provided with rear arch 6, and face arch 5, rear arch 6 all are positioned at the top in fire grate district 2, is furnished with two-layer overfire air port 7 on the face arch 5, be furnished with two-layer twice wind snout 8 on the rear arch 6, the arranged beneath that screw(-type) feeder 4 is communicated with the position of burner hearth 1 has the little spout 9 of secondary wind.Arrow is the flow of flue gas direction among the figure.
Claims (1)
1. the secondary wind arrangement of a straw boiler, it comprises burner hearth, the bottom of described burner hearth is provided with the fire grate district, described fire grate is furnished with the fire grate water-cooling wall in the district, screw(-type) feeder is communicated to described burner hearth, it is characterized in that: the front wall of described burner hearth is provided with face arch, the back wall of described burner hearth is provided with rear arch, described face arch, rear arch all is positioned at the top in described fire grate district, be furnished with two-layer overfire air port on the described face arch, be furnished with two-layer twice wind snout on the described rear arch, the arranged beneath that described screw(-type) feeder is communicated with the position of described burner hearth has the little spout of secondary wind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101208017A CN103234216A (en) | 2013-04-09 | 2013-04-09 | Secondary air arranging structure of straw boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101208017A CN103234216A (en) | 2013-04-09 | 2013-04-09 | Secondary air arranging structure of straw boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103234216A true CN103234216A (en) | 2013-08-07 |
Family
ID=48882268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101208017A Pending CN103234216A (en) | 2013-04-09 | 2013-04-09 | Secondary air arranging structure of straw boiler |
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| CN (1) | CN103234216A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4213405A (en) * | 1977-09-05 | 1980-07-22 | Gotaverken Anteknik Ab | Water-cooled grate |
| CN101105336A (en) * | 2007-04-30 | 2008-01-16 | 华西能源工业集团有限公司 | Biomass fuel boiler |
| CN101377296A (en) * | 2007-08-29 | 2009-03-04 | 郑州锅炉有限责任公司 | Boiler using waste slag of alcohol production by stalk combustion |
| CN102042584B (en) * | 2011-01-04 | 2012-10-10 | 华北电力大学 | Novel biomass direct-fired boiler |
| CN202598495U (en) * | 2012-05-28 | 2012-12-12 | 无锡东马锅炉有限公司 | Biomass circulating fluidized bed boiler |
| CN203223934U (en) * | 2013-04-09 | 2013-10-02 | 无锡华光锅炉股份有限公司 | Secondary air arrangement structure of straw boiler |
-
2013
- 2013-04-09 CN CN2013101208017A patent/CN103234216A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4213405A (en) * | 1977-09-05 | 1980-07-22 | Gotaverken Anteknik Ab | Water-cooled grate |
| CN101105336A (en) * | 2007-04-30 | 2008-01-16 | 华西能源工业集团有限公司 | Biomass fuel boiler |
| CN101377296A (en) * | 2007-08-29 | 2009-03-04 | 郑州锅炉有限责任公司 | Boiler using waste slag of alcohol production by stalk combustion |
| CN102042584B (en) * | 2011-01-04 | 2012-10-10 | 华北电力大学 | Novel biomass direct-fired boiler |
| CN202598495U (en) * | 2012-05-28 | 2012-12-12 | 无锡东马锅炉有限公司 | Biomass circulating fluidized bed boiler |
| CN203223934U (en) * | 2013-04-09 | 2013-10-02 | 无锡华光锅炉股份有限公司 | Secondary air arrangement structure of straw boiler |
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Application publication date: 20130807 |