CN110906318A - Rice husk combustion furnace - Google Patents
Rice husk combustion furnace Download PDFInfo
- Publication number
- CN110906318A CN110906318A CN201911243649.5A CN201911243649A CN110906318A CN 110906318 A CN110906318 A CN 110906318A CN 201911243649 A CN201911243649 A CN 201911243649A CN 110906318 A CN110906318 A CN 110906318A
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- CN
- China
- Prior art keywords
- grate
- combustion chamber
- slag
- combustion
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B90/00—Combustion methods not related to a particular type of apparatus
- F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
- F23B90/06—Combustion methods not related to a particular type of apparatus including secondary combustion the primary combustion being a gasification or pyrolysis in a reductive atmosphere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B40/00—Combustion apparatus with driven means for feeding fuel into the combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H13/00—Grates not covered by any of groups F23H1/00-F23H11/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
Abstract
The application discloses rice husk fires burning furnace compares with prior art, includes: the first combustion chamber is provided with a material inlet structure and a slag outlet structure; the first combustion chamber is also provided with a feeding propulsion mechanism which is communicated with the material through hole structure and used for inputting and propelling the rice hull fuel; in addition, a stepped grate group is arranged at the lower part of the first combustion chamber, wherein one end of the stepped grate group is close to the lower part of the material passing opening structure, and the other end of the stepped grate group is close to the upper part of the material discharging opening structure. In this scheme, through the propulsive force that utilizes feeding advancing mechanism to and the design of cascaded grate group, realize simply expanding the burning grate area with low costs, more adapt to the fuel of this kind of low unit volume calorific value of rice husk, compare in prior art, it can expand and fire burning furnace area, improves the abundant degree of rice husk burning, reduces smoke and dust concentration in the flue gas simultaneously.
Description
Technical Field
The application relates to the technical field of combustion furnaces, in particular to a rice husk combustion furnace.
Background
At present, most rice hulls of rice are discarded as waste or used as low-grade fuel for treatment, the rice hulls are hard in surface, high in silicon content, not easy to decompose by bacteria and small in stacking density, and due to the fact that the silicon dioxide content in the rice hulls is high, the rice hulls are difficult to burn fully, and due to the fact that the rice hulls are burnt insufficiently, a large amount of carbon dioxide can be discharged into the atmosphere, and a large amount of dust can be generated at the same time.
At present, the rice hulls are generally treated by adopting a combustion furnace, in the prior art, the combustion furnace directly combusts the rice hulls, and because the rice hulls are low in density, low in heat value and especially low in unit volume heat value, rated heat power is provided, large-volume rice hulls need to be combusted, insufficient combustion of the rice hulls in slag is easily caused, the smoke concentration in smoke is high, not only is a large amount of resources wasted, but also air pollution is caused.
Therefore, it is an urgent technical problem for those skilled in the art to provide a rice husk combustion furnace, which can expand the combustion furnace area at low cost to adapt to the fuel with low heat value per unit volume, such as rice husk, to improve the combustion sufficiency of the rice husk and to reduce the smoke concentration in the flue gas.
Disclosure of Invention
In order to solve the technical problem, the application provides a rice husk combustion furnace, which can expand the combustion furnace area at low cost to adapt to the fuel with low heat value per unit volume, such as rice husk, and improve the sufficient degree of rice husk combustion.
The technical scheme provided by the application is as follows:
the present application provides a rice husk combustion furnace comprising: a first combustion chamber; the material through hole structure and the slag hole structure are arranged on the first combustion chamber; the feeding propulsion mechanism is arranged on the first combustion chamber, is communicated with the material through hole structure and is used for inputting and propelling rice hull fuel; the stepped grate group is arranged at the lower part of the first combustion chamber; one end of the stepped grate group is close to the lower part of the material passing opening structure, and the other end of the stepped grate group is close to the upper part of the material discharging opening structure.
Further, in a preferred mode of the present invention, the stepped grate group includes: the long grate at the feeding end is arranged close to the material through hole structure; the inclined grate is arranged adjacent to the long grate at the feeding end; the first-stage short grate is arranged adjacent to the inclined grate; and the second-stage short grate is arranged adjacent to the first-stage short grate and is close to the upper part of the discharge port structure.
Further, in a preferred mode of the present invention, the rice husk burning furnace further includes: and the grate air supply device is used for supplying air to the stepped grate group.
Further, in a preferred aspect of the present invention, the grate air supply device further includes: and the long grate air supply mechanism and the multi-stage slag pushing grate air supply mechanism are arranged on the first combustion chamber.
Further, in a preferred aspect of the present invention, the grate air supply device further includes: and the slag pushing device is arranged on the first combustion chamber and used for pushing the slag on the stepped grate group.
Further, in a preferred aspect of the present invention, the slag pushing device includes: the slag pushing base is arranged on the first combustion chamber; the electric push rod is arranged on the slag pushing base; the first-stage slag pushing rod group is connected with the electric push rod and used for pushing slag on the first-stage short fire grate; and the second-stage slag pushing rod group is connected with the electric push rod and used for pushing slag on the second-stage short grate.
Further, in a preferred mode of the present invention, the feed advancing mechanism includes: the spiral feeding mechanism is arranged on the first combustion chamber and is communicated with the material through hole structure; and the feed hopper is connected with the spiral feeding mechanism.
Further, in a preferred mode of the present invention, the rice husk combustion furnace further includes: and the second combustion chamber is positioned above the first combustion chamber and communicated with the first combustion chamber.
Further, in a preferred mode of the present invention, the rice husk combustion furnace further includes: and the secondary combustion air inlet mechanism is arranged on the second combustion chamber and is used for ventilating the second combustion chamber.
Further, in a preferred mode of the present invention, the secondary combustion chamber is specifically a cylindrical tubular structure.
Compared with the prior art, the rice husk combustion furnace provided by the invention comprises: the first combustion chamber is provided with a material inlet structure and a slag outlet structure; still be equipped with on the first combustion chamber with lead to material mouthful structure intercommunication for the input and impel rice husk fuel's feeding advancing mechanism, the cascaded grate group of first combustion chamber lower part in addition, wherein cascaded grate group one end is close to lead to material mouthful structure below setting, the other end is close to bin outlet structure top sets up. Through the propulsive force that utilizes feeding advancing mechanism in this scheme to and the design of cascaded grate group, realize simply expanding the burning grate area with low costs, more adapt to the fuel of this kind of low unit volume calorific value of rice husk, compare in prior art, improve the abundant degree of rice husk burning, smoke and dust concentration in the reduction flue gas simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a rice hull combustion furnace provided by the embodiment of the invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "first," "second," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, do not have the technical essence, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.
Referring to fig. 1, the rice husk combustion furnace provided in the embodiment of the present application includes: a first combustion chamber 3; a material inlet structure and a slag outlet structure 14 which are arranged on the first combustion chamber 3; the feeding propulsion mechanism 4 is arranged on the first combustion chamber 3, is communicated with the material through hole structure and is used for inputting and propelling rice hull fuel; the stepped grate group is arranged at the lower part of the first combustion chamber 3; one end of the stepped grate group is close to the lower part of the material passing opening structure, and the other end of the stepped grate group is close to the upper part of the material discharging opening structure.
The embodiment of the invention provides a rice husk combustion furnace, which comprises: the device comprises a first combustion chamber 3, wherein a material passing hole structure and a slag hole structure 14 are arranged on the first combustion chamber 3; still be equipped with on the first combustion chamber 3 with lead to material mouthful structure intercommunication for the input and impel rice husk fuel's feed advancing mechanism 4, the cascaded grate group of 3 lower parts in addition of first combustion chamber, wherein cascaded grate group one end is close to lead to material mouthful structure below setting, the other end is close to bin outlet structure top sets up. Through the propulsive force that utilizes feeding advancing mechanism 4 in this scheme to and the design of cascaded grate group, realize simply expanding the burning grate area with low costs, more adapt to the fuel of this kind of low unit volume calorific value of rice husk, compare in prior art, improve the abundant degree of rice husk burning, smoke and dust concentration in the reduction flue gas simultaneously.
Specifically, in an embodiment of the present invention, the stepped grate group includes: a long grate 6 at the feeding end is arranged close to the material through opening structure; the inclined grate 11 is arranged adjacent to the long grate 6 at the feeding end; a first-stage short grate 12 arranged adjacent to the inclined grate 11; and the second-stage short grate 13 is arranged adjacent to the first-stage short grate 12 and is close to the upper part of the discharge opening structure.
Specifically, in an embodiment of the present invention, the rice husk combustion furnace further includes: and the grate air supply device is used for supplying air to the stepped grate group.
Specifically, in an embodiment of the present invention, the grate air supply device further includes: a long grate air supply mechanism 5 and a multi-stage slag pushing grate air supply mechanism 8 which are arranged on the first combustion chamber 3.
Specifically, in an embodiment of the present invention, the grate air supply device further includes: and the slag pushing device is arranged on the first combustion chamber 3 and used for pushing the slag on the stepped grate group.
Specifically, in an embodiment of the present invention, the slag pushing device includes: a slag pushing base installed on the first combustion chamber 3; an electric push rod 7 arranged on the slag pushing base; the first-stage slag pushing rod group 10 is connected with the electric push rod 7 and used for pushing slag on the first-stage short grate 12; and the second-stage slag pushing rod group 9 is connected with the electric push rod 7 and is used for pushing slag on the second-stage short grate 13.
Specifically, in the present embodiment, the feed propulsion mechanism 4 includes: the spiral feeding mechanism is arranged on the first combustion chamber 3 and is communicated with the material through hole structure; and the feed hopper is connected with the spiral feeding mechanism.
Specifically, in the embodiment of the present invention, the rice husk combustion furnace further includes: and the second combustion chamber 1 is positioned above the first combustion chamber 3 and communicated with the first combustion chamber 3.
Specifically, in the embodiment of the present invention, the rice husk combustion furnace further includes: and the secondary combustion air inlet mechanism 2 is arranged on the second combustion chamber 1 and is used for ventilating the second combustion chamber 1.
Specifically, in the embodiment of the invention, the secondary combustion chamber is specifically of a cylindrical structure.
More specifically, in a more preferable scheme of the embodiment of the present application, the fuel rice husk is input into the first combustion chamber by the spiral feeding device, and combustion-supporting air is supplied from the long grate air supply mechanism 5 under the continuous pushing action of the fuel rice husk entering behind, and the fuel rice husk slowly advances on the long grate 6 at the feeding end and is continuously preheated for pyrolysis and gasification; the fuel after primary pyrolysis and gasification slides down to the first-stage short grate 12 from the inclined grate 11, under the reciprocating motion of the first-stage slag pushing rod group 10, the fuel moves forward to the second-stage short grate 13, and finally, the burned slag is discharged from the slag outlet structure 14 under the reciprocating motion of the second-stage slag pushing rod group 9.
More specifically, the method further comprises the following steps: and the cyclone ash removal mechanism is connected with the second combustion chamber.
The first-stage slag pushing rod group 10 and the first-stage slag pushing rod group 10 are driven by the electric push rod 7 to reciprocate; the multi-stage slag pushing grate air supply pipe provides combustion-supporting air for the inclined grate 11, the first-stage short grate 12 and the second-stage short grate 13, secondary air introduced by the combustion air inlet mechanism blows into the cylindrical second combustion chamber from the secondary combustion air inlet pipe in a tangential direction, and mixed air which is not fully combusted in the first combustion chamber is fully combusted in the cylindrical second combustion chamber. According to the scheme provided by the embodiment of the invention, the propelling force of the spiral feeding device is skillfully utilized, the combination of the long grate 6 at the feeding end and the multi-stage slag pushing grate is designed, the area of the combustion grate is simply expanded at low cost so as to adapt to the fuel with low heat value per unit volume, namely the rice hulls, and compared with the prior art, the area of the combustion grate can be expanded, and the sufficient degree of rice hull combustion is improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A rice husk burning furnace comprising:
a first combustion chamber;
the material through hole structure and the slag hole structure are arranged on the first combustion chamber;
the feeding propulsion mechanism is arranged on the first combustion chamber, is communicated with the material through hole structure and is used for inputting and propelling rice hull fuel;
the stepped grate group is arranged at the lower part of the first combustion chamber; one end of the stepped grate group is close to the lower part of the material passing opening structure, and the other end of the stepped grate group is close to the upper part of the material discharging opening structure.
2. A rice hull combustion furnace as claimed in claim 1, wherein said stepped grate assembly comprises: the long grate at the feeding end is arranged close to the material through hole structure; the inclined grate is arranged adjacent to the long grate at the feeding end; the first-stage short grate is arranged adjacent to the inclined grate; and the second-stage short grate is arranged adjacent to the first-stage short grate and is close to the upper part of the discharge port structure.
3. A rice hull combustion furnace as claimed in claim 2, further comprising: and the grate air supply device is used for supplying air to the stepped grate group.
4. A rice hull combustion furnace as claimed in claim 3, wherein said grate air supply means further comprises: and the long grate air supply mechanism and the multi-stage slag pushing grate air supply mechanism are arranged on the first combustion chamber.
5. A rice hull combustion furnace as claimed in claim 4, wherein said grate air supply means further comprises: and the slag pushing device is arranged on the first combustion chamber and used for pushing the slag on the stepped grate group.
6. A rice husk burning furnace as claimed in claim 5 wherein said slag pushing means comprises: the slag pushing base is arranged on the first combustion chamber; the electric push rod is arranged on the slag pushing base; the first-stage slag pushing rod group is connected with the electric push rod and used for pushing slag on the first-stage short fire grate; and the second-stage slag pushing rod group is connected with the electric push rod and used for pushing slag on the second-stage short grate.
7. A rice hull burning furnace as claimed in claim 1, wherein said feed propulsion means comprises: the spiral feeding mechanism is arranged on the first combustion chamber and is communicated with the material through hole structure; and the feed hopper is connected with the spiral feeding mechanism.
8. A rice husk combustion furnace according to any one of claims 1 to 7, characterized in that it further comprises: and the second combustion chamber is positioned above the first combustion chamber and communicated with the first combustion chamber.
9. A rice hull combustion furnace as claimed in claim 8, further comprising: and the secondary combustion air inlet mechanism is arranged on the second combustion chamber and is used for ventilating the second combustion chamber.
10. A rice hull combustion furnace according to claim 9, characterised in that said secondary combustion chamber is of a cylindrical tubular configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911243649.5A CN110906318A (en) | 2019-12-06 | 2019-12-06 | Rice husk combustion furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911243649.5A CN110906318A (en) | 2019-12-06 | 2019-12-06 | Rice husk combustion furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110906318A true CN110906318A (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911243649.5A Pending CN110906318A (en) | 2019-12-06 | 2019-12-06 | Rice husk combustion furnace |
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| CN (1) | CN110906318A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201259305Y (en) * | 2008-08-22 | 2009-06-17 | 常州联合锅炉容器有限公司 | Novel biomass burning film wall organic heat carrier furnace |
| CN201416896Y (en) * | 2009-07-10 | 2010-03-03 | 王青春 | Big-step reciprocating grate boiler capable of burning rice husk specially |
| JP2014081187A (en) * | 2012-10-12 | 2014-05-08 | Katsuhiko Hiramatsu | Power generating method with fuel of rice hull and wooden (saw dusts) |
| CN103822219A (en) * | 2014-03-04 | 2014-05-28 | 大连旺佳新能源科技开发有限公司 | Reciprocating grate and biomass particle combustion furnace |
| CN105003911A (en) * | 2015-08-05 | 2015-10-28 | 冯之军 | Biomass furnace and device for removing nitric oxide in same |
| CN105114941A (en) * | 2015-09-16 | 2015-12-02 | 潍坊金丝达新能源科技有限公司 | Biomass high-temperature gasifying combustion furnace |
| CN106907850A (en) * | 2017-03-13 | 2017-06-30 | 河北约翰节能设备科技有限公司 | A kind of semi-coke Industrial Boiler for efficiently carrying denitration |
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| CN208750729U (en) * | 2018-07-25 | 2019-04-16 | 光大环保技术研究院（南京）有限公司 | Biomass incinerator row and incinerator |
| CN110207102A (en) * | 2019-06-27 | 2019-09-06 | 陈喜春 | A kind of double combustion chamber boiler |
| CN110397946A (en) * | 2019-09-02 | 2019-11-01 | 韩君丽 | The box seperated combustion environmental-friendly energy-saving device of casting distribution |
-
2019
- 2019-12-06 CN CN201911243649.5A patent/CN110906318A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201259305Y (en) * | 2008-08-22 | 2009-06-17 | 常州联合锅炉容器有限公司 | Novel biomass burning film wall organic heat carrier furnace |
| CN201416896Y (en) * | 2009-07-10 | 2010-03-03 | 王青春 | Big-step reciprocating grate boiler capable of burning rice husk specially |
| JP2014081187A (en) * | 2012-10-12 | 2014-05-08 | Katsuhiko Hiramatsu | Power generating method with fuel of rice hull and wooden (saw dusts) |
| CN103822219A (en) * | 2014-03-04 | 2014-05-28 | 大连旺佳新能源科技开发有限公司 | Reciprocating grate and biomass particle combustion furnace |
| CN105003911A (en) * | 2015-08-05 | 2015-10-28 | 冯之军 | Biomass furnace and device for removing nitric oxide in same |
| CN105114941A (en) * | 2015-09-16 | 2015-12-02 | 潍坊金丝达新能源科技有限公司 | Biomass high-temperature gasifying combustion furnace |
| CN106907850A (en) * | 2017-03-13 | 2017-06-30 | 河北约翰节能设备科技有限公司 | A kind of semi-coke Industrial Boiler for efficiently carrying denitration |
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| CN110207102A (en) * | 2019-06-27 | 2019-09-06 | 陈喜春 | A kind of double combustion chamber boiler |
| CN110397946A (en) * | 2019-09-02 | 2019-11-01 | 韩君丽 | The box seperated combustion environmental-friendly energy-saving device of casting distribution |
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