CN104235829A - Discontinuous variable-pitch biomass particle fuel combustor - Google Patents
Discontinuous variable-pitch biomass particle fuel combustor Download PDFInfo
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- CN104235829A CN104235829A CN201310236836.7A CN201310236836A CN104235829A CN 104235829 A CN104235829 A CN 104235829A CN 201310236836 A CN201310236836 A CN 201310236836A CN 104235829 A CN104235829 A CN 104235829A
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Abstract
The invention discloses a discontinuous variable-pitch biomass particle fuel combustor. The combustor is mainly structurally characterized in that the bottom of the combustor is a semi-circular long cavity, the ash discharging side of the semi-circular bottom is provided with an ash leaking port, a material pushing spiral shaft with discontinuous variable pitches is connected with a material pushing motor and installed in a combustion chamber, the pitch of the material inlet end of the material pushing spiral shaft is large, so the material inlet end is called a material pushing area, the pitch of the material outlet end of the material pushing spiral shaft is small, so the material outlet end is called a disturbance area, and the middle polished shaft area without spirals is called a static combustion area. According to the combustor, fuel is pushed to the static combustion area by the spirals in the material pushing area after being compacted by a compacting plate, the fuel is pushed to the disturbance area after being fully dried and combusted in the static combustion area, the fuel in the disturbance area rolls forwards and slowly moves while burning under the action of the spirals in the disturbance area until the fuel is completely combusted and falls off from the ash leaking port, and the fuel cannot coke due to the facts that the fuel cannot adhere in the whole process, and the situations of local air tightness and local high temperature cannot occur.
Description
Technical field
The present invention relates to a kind of burner, refer in particular to a kind of burner for biomass granules with high ash content.
Background technology
In recent decades, along with the increase of atmospheric greenhouse gas concentration, the frequent generation of global warming, Melting Glaciers: and various disaster, people have recognized the importance of clean energy resource, and start the research to the high-efficiency cleaning renewable sources of energy.But global research emphasis is all pure fuel, and China has the various agriculture and forestry organic waste materials being equivalent to 700,000,000 tons of mark coals to be wasted every year, and agriculture and forestry organic waste material is multi-ash biomass.Therefore study multi-ash biomass fuel and just become an important problem.Because living beings majority is the agriculture and forestry organic waste material such as straw, shrub, wherein Na, K, Si and other volatile materials are than pure wood chip height decades of times, and in prill manufacturing process, be mixed with the impurity such as dust, the grains of sand, therefore in burning, cinder content is high, and coking, slagging scorification are serious, easily cause burner to block.Therefore the burner used at present cannot realize efficiently, automatic, continuous burning.According to multi-ash biomass fuel combustion mechanism and characteristic, the burner that development is exclusively used in multi-ash biomass fuel is very necessary and urgent.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of discontinuous varying pitch biomass granular fuel combustor, and this burner develops according to multi-ash biomass fuel combustion mechanism and characteristic.
The technical problem to be solved in the present invention is realized by following structure: discontinuous varying pitch biomass granular fuel combustor, comprise one-level charging aperture, feeding motor, feeding screw, secondary charging aperture, pusher motor, pushing spiral, stagnation combustion zone, disturbance spiral, Semi round bottom combustion chamber, combustion chamber fan housing, air holes, blower fan, airduct, grey leakage port, it is characterized in that: described burner is bottom is semi-circular microscler cavity, burner rear is communicated with feeding screw by secondary charging aperture, feeding screw is connected with feeding motor, one-level charging aperture is in feeding screw back upper place, pushing spiral is connected with pusher motor, pushing spiral is larger near charging aperture position pitch, this section is pusher district, less near grey leakage port position pitch, this section is perturbing area, centre does not have vaned position to be stagnation combustion zone.There is block squeeze board back upper place, combustion chamber, and two sides, Semi round bottom combustion chamber and bottom surface have air holes, and combustion chamber outer race has fan housing.Fan housing is connected with blower fan by airduct.
Operation principle of the present invention: discontinuous varying pitch biomass granular fuel combustor drives feeding screw rotate and send in combustion chamber by granular fuel by feeding motor, in the indoor pushing spiral of burning by fuel driven forward, the restriction of squeeze board above fuel is subject in the process moved ahead, gap is eliminated gradually, fuel becomes more closely knit, closely knit fuel is more conducive to transmitting force, fuel is also more easily pushed to stagnation combustion zone, relative static conditions is in and abundant drying and burning at stagnation combustion zone fuel, after having virgin material to enter combustion chamber, pushing spiral pushes virgin material to stagnation combustion zone again, will be pushed to the perturbing area more at the clean-burning old material in stagnation combustion zone this moment, after the fuel caught fire enters perturbing area, roll forward slowly mobile on the effect of disturbance spiral limit of burning below, combustion-supporting lower until drop out from grey leakage port after burnouting at rational air distribution, fuel can not adhesion in the mobile combustion process of rolling, local can not be formed airtight, localized hyperthermia, therefore can not lump, coking.
Advantage of the present invention:
1, discontinuous varying pitch biomass granular fuel combustor achieves the continuous automatic combustion of biomass fuel, the agriculture and forestry organic waste materials such as all straws, shrub can be turned into fuel and carry out direct energy conversion and utilization.
2, discontinuous varying pitch biomass granular fuel combustor is according to biomass fuel characteristic, make full use of special helical structure, same spiral is designed pusher district, perturbing area, three, stagnation combustion zone part, in addition Proper Match First air Secondary Air, beyond thought combustion efficiency will be produced, simple and reliable for structure, solve multi-ash biomass volatile matter content too high, easy coking and slagging, blocking air channel and deslagging problem, achieve the continuous automatic combustion of high ash biomass fuel, efficiency of combustion reaches more than 94%, discharge reaches Europe 3 standard, and stable and reliable working performance.
Accompanying drawing explanation
Give an actual example below in conjunction with accompanying drawing and be described in further detail:
Fig. 1 is the main sectional view of discontinuous varying pitch biomass granular fuel combustor.
Fig. 2 is the A direction view of Fig. 1.
Fig. 3 is the three-dimensional view of burner.
Detailed description of the invention
As Fig. 1, Fig. 3, shown in, the combustion chamber 10 of discontinuous varying pitch biomass granular fuel combustor is semi-circular microscler cavity in bottom, burn back upper place, room 10 to be communicated with feeding screw 3 by secondary charging aperture 4, feeding screw 3 is connected with feeding motor 1, feeding screw 3 back upper place is one-level charging aperture 2, the fuel of feeding screw 3 is fallen into by one-level charging aperture 2, secondary charging aperture 4 is moved forward under feeding screw 3 promotes, finally fall in the middle of the pushing spiral 7 bottom combustion chamber 10, pushing spiral 7 is connected with pusher motor 6, pusher motor 6 drives pushing spiral 7 to rotate, fuel in pushing spiral 7 moves forward, in moving process, fuel is via arriving the stagnation combustion zone 8 not having helical blade after squeeze board 5 compacting, fuel is at stagnation combustion zone 8 first ignition, the fuel caught fire moves forward under subsequent combustion promotes, until arrive disturbance spiral 9 place, the burning limit, fuel limit that enters disturbance spiral 9 is rolled forward slowly mobile, with rational air distribution until drop out from grey leakage port 12 after burnouting, fuel can not be inter-adhesive in the mobile combustion process of rolling, local can not be formed airtight, localized hyperthermia, therefore can not lump, coking.In combustion process, all wind-force sends to fan housing 13 by blower fan 15 by airduct 14, sprayed by air holes 11 again and participate in burning, this burner makes full use of reasonable wind distribution, by the perfect adaptation of wind-force and burner structure, ashes migrate out outside combustion chamber 10 by success, achieve the continuous automatic combustion of high ash biomass fuel.
Claims (6)
1. a discontinuous varying pitch biomass granular fuel combustor, comprise one-level charging aperture, feeding motor, feeding screw, secondary charging aperture, pusher motor, pushing spiral district, stagnation combustion zone, disturbance helical region, Semi round bottom combustion chamber, combustion chamber fan housing, air holes, blower fan, airduct, grey leakage port, it is characterized in that: described burner is bottom is semi-circular microscler cavity, rear combustion chamber is communicated with feeding screw by secondary charging aperture, feeding screw is connected with feeding motor, one-level charging aperture is in feeding screw back upper place, pusher motor is connected with pushing spiral, pushing spiral is in feed end pitch more greatly pusher district, ash discharge end pitch is less is perturbing area, centre does not have the position of spiral to be stagnation combustion zone, there is block squeeze board back upper place, combustion chamber, two sides, circular arc bottom combustion chamber and bottom surface have air holes, combustion chamber outer race has fan housing.Fan housing is connected with blower fan by airduct.
2. burner according to claim 1, is characterized in that: burner is bottom is semi-circular microscler cavity.
3. burner according to claim 1, it is characterized in that: pushing spiral is discontinuous variable-pitch propeller, i.e. feed end pitch more greatly pusher district, ash discharge end pitch is less is perturbing area, and middle one section does not have spiral to be stagnation combustion zone.
4. burner according to claim 1, is characterized in that: bottom and the two sides of combustion chamber have air holes, and combustion outer case has fan housing.
5. burner according to claim 1, is characterized in that: combustion chamber has grey leakage port bottom one end.
6. burner according to claim 1, is characterized in that: there is one piece of squeeze board back upper place, combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310236836.7A CN104235829A (en) | 2013-06-17 | 2013-06-17 | Discontinuous variable-pitch biomass particle fuel combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310236836.7A CN104235829A (en) | 2013-06-17 | 2013-06-17 | Discontinuous variable-pitch biomass particle fuel combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104235829A true CN104235829A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310236836.7A Pending CN104235829A (en) | 2013-06-17 | 2013-06-17 | Discontinuous variable-pitch biomass particle fuel combustor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918040A (en) * | 2017-04-13 | 2017-07-04 | 西安圣华农业科技股份有限公司 | A kind of biomass sectional combustion device |
| EP3193083A1 (en) * | 2016-01-14 | 2017-07-19 | Solontrack, S.L. | Grate for horizontal solid fuel burners |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200968594Y (en) * | 2006-10-24 | 2007-10-31 | 胡喜令 | Horizontal multi-spiral lower-feed downward furnace for boiler and kiln |
| RU2459144C1 (en) * | 2011-02-01 | 2012-08-20 | Общество с ограниченной ответственностью "АИСТ-Т" | Multi-stage decomposition method of solid fuel by means of oxidation, and device for its implementation |
| CN202532447U (en) * | 2012-03-16 | 2012-11-14 | 张文基 | Straw particle fuel screw type combustor |
| CN103090363A (en) * | 2013-02-08 | 2013-05-08 | 胡光 | Auger disturbance type biomass burner |
| CN203442791U (en) * | 2013-06-17 | 2014-02-19 | 内蒙古方圆科技有限公司 | Non-continuous variable-pitch biomass pellet fuel combustor |
-
2013
- 2013-06-17 CN CN201310236836.7A patent/CN104235829A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200968594Y (en) * | 2006-10-24 | 2007-10-31 | 胡喜令 | Horizontal multi-spiral lower-feed downward furnace for boiler and kiln |
| RU2459144C1 (en) * | 2011-02-01 | 2012-08-20 | Общество с ограниченной ответственностью "АИСТ-Т" | Multi-stage decomposition method of solid fuel by means of oxidation, and device for its implementation |
| CN202532447U (en) * | 2012-03-16 | 2012-11-14 | 张文基 | Straw particle fuel screw type combustor |
| CN103090363A (en) * | 2013-02-08 | 2013-05-08 | 胡光 | Auger disturbance type biomass burner |
| CN203442791U (en) * | 2013-06-17 | 2014-02-19 | 内蒙古方圆科技有限公司 | Non-continuous variable-pitch biomass pellet fuel combustor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3193083A1 (en) * | 2016-01-14 | 2017-07-19 | Solontrack, S.L. | Grate for horizontal solid fuel burners |
| CN106918040A (en) * | 2017-04-13 | 2017-07-04 | 西安圣华农业科技股份有限公司 | A kind of biomass sectional combustion device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |