CN2356743Y - Preheated biological substance ciruclation fluidised bed gasification furnace - Google Patents
Preheated biological substance ciruclation fluidised bed gasification furnace Download PDFInfo
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- CN2356743Y CN2356743Y CN 98232113 CN98232113U CN2356743Y CN 2356743 Y CN2356743 Y CN 2356743Y CN 98232113 CN98232113 CN 98232113 CN 98232113 U CN98232113 U CN 98232113U CN 2356743 Y CN2356743 Y CN 2356743Y
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Abstract
The utility model relates to a preheated biological substance circulation fluidized bed gasification furnace which has the structural characteristic that the bottom part of the fluidized bed is provided with a main bed and a built-in fluidized bed, the main bed is the biomass gasification and combustion zone, a gas outlet at the upper part of the gasification furnace is provided with a built-in inertial separator of an air preheater, a fly ash returning pipe is led into the built-in fluidized bed which is used as burning and returning space of the fly ash, and air needed by the gasification furnace is introduced into air distribution chambers of the main bed and the built-in fluidized bed after preheated by the built-in air preheater. The utility model can effectively solve the problem of serious fly ash of the biomass circulation fluidized bed, and the efficiency and the stability are improved.
Description
The utility model belongs to the gasifying furnace device that the living beings waste material is converted into gaseous fuel.
The biomass circulating fluid bed gasification furnace is the advanced means that the living beings waste material is converted into gaseous fuel, it is specially adapted to tiny living beings waste material, as living beings such as the straw after wood chip, husk or the pulverizing, straws, having gasification to stablize, continuously reliable characteristics.But the shortcoming that present biomass circulating fluid bed gasification furnace ubiquity flying dust is serious, efficient is lower.
The purpose of this utility model is to propose a kind of pre-heated biomass circulating fluid bed gasification furnace and newly design for overcoming the existing existing shortcoming of biomass circulating fluid bed gasification furnace.
The utility model adopts following art designs scheme, the structure of its gasification furnace comprises body of heater, air compartment, distribution grid, fluid bed, feeder, its characteristics are that the bottom of fluid bed is split up into main bed and built-in fluid bed two parts, main bed is the zone of living beings gasification and burning, charge door is located at the top of main bed, be provided with the inertia separator of built-in air preheater in the upper side of gasification furnace, the fuel gas inlet of said inertia separator links to each other with the gas outlet of gasification furnace, and have the ash return pipe road and feed built-in fluid bed, the air compartment of main bed and built-in fluid bed is sent in the built-in fluid bed space that burns and reflux as flying dust more respectively through control valve after the built-in air preheater preheating of gasification furnace required air in inertia separator.
The effect of said inertia separator is a gas solid separation, by the flying dust in the dust block board separation combustion gas.It is set in inertia separator that built-in air preheater can the economizer bank on the dust block board constitutes in the inertia separator by being located at.
The utility model mainly carries out the improvement aspect two on the structure of flying dust separation and backflow, the one, fly ash separator adopts inertia separator simple in structure, this inertia separator is provided with air preheater, therefore, except energy separating most flying dust, the air of the gasification of energy preheating simultaneously usefulness, and resistance is very little, and helping gasification furnace increases second-stage separator; The 2nd, the return-flow structure of flying dust adopts built-in fluid bed, both made the ash backflow can be reliable and stable, can reduce the heat loss of return-flow structure again, the measure of this two aspect, make the utility model both solve the serious problem of gasification furnace flying dust effectively, improved efficient and stability again greatly.The utility model can become the capital equipment of macro-organism matter gasification technology, has wide practical use at aspects such as biomass waste gasification process and gasifying electricity generations.
Below be drawing explanation of the present utility model:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 be Fig. 1 A-B-C-D to cutaway view.
Among the figure, 1 is body of heater, and 2 is main bed, 3 is built-in fluid bed, and 4 is a main bed air compartment, and 5 is built-in fluid bed air compartment, 6 is main bed distribution grid, and 7 is built-in distribuor of fluidized bed, and 8 is inertia separator, 9 is the ash return pipe road, and 10,11 for regulating air valve, and 12 is feeder, 13 is charge door, and 14 is economizer bank, and 15 is dust block board, 16 is gas pipeline, and 17 is air blast.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
The structure of present embodiment as shown in Figure 1, 2.The fluid bed that the body of heater 1 of this gasification furnace is constituted is square (also can be circle) structure, the bottom of fluid bed is separated into main bed 2 and built-in fluid bed 3 two parts, one air compartment (4 is respectively arranged at the bottom of main bed 1 and built-in fluid bed 3,5), main bed distribution grid 6 is arranged between a main bed 2 and a main air compartment 4, between bed 3 and the built-in fluid bed air compartment 7 built-in distribuor of fluidized bed 7 is arranged built-in flowing through, feeder mouth 13 is positioned at the top of main bed 2, add the biomass material that gasifies to charge door by feeder 12, gas outlet on gasification furnace top is provided with inertia separator 8, in inertia separator, has many gears hawk 15, economizer bank 14 is housed as built-in air preheater on each dust block board, the preheated air gas outlet that the built-in air preheater in built-in fluid bed 3 inertia separators of ash return pipe road 9 feedings is equipped with in the inertia separator bottom is connected to gas pipeline 16 and passes through to regulate air valve 10 respectively, 11 link the air inlet of main bed air compartment 4 and built-in fluid bed air compartment 5.
During the running of this gasification furnace, biomass material is in main bed 2 burnings and gasification, the combustion gas that produces enters inertia separator 8 by the outlet of stove top, flying dust in the combustion gas is separated and be back to built-in fluid bed 3 by ash return pipe 9 in inertia separator, and the clean combustion gas after dedusting is drawn from the gas outlet of inertia separator.After the required air of fluidized gasification is sent into built-in preheater heating in the inertia fluid bed by air blast 17, can be heated to normal temperature air about 200 ℃, draw by gas pipeline 16, regulate the air compartment 4 and 5 that air valve 10,11 is sent into main bed and built-in fluid bed through two, enter gasification furnace by distribution grid 6 and 7 respectively again, the usefulness of air feedization and burning.
Claims (2)
1. pre-heated biomass circulating fluid bed gasification furnace, comprise body of heater, air compartment, distribution grid, fluid bed, feeder, the bottom that it is characterized in that fluid bed is split up into main bed (2) and built-in fluid bed (3) two parts, charge door (13) is located at the top of main bed (2), be provided with the inertia separator (8) of built-in air preheater in the upper side of gasification furnace, the fuel gas inlet of said inertia separator (8) links to each other with the gas outlet of gasification furnace, and have ash return pipe road (9) and feed built-in fluid bed (3), send into the air compartment (4 of main bed (2) and built-in fluid bed (3) respectively through regulating air valve again after the built-in air preheater preheating of gasification furnace required air in inertia separator, 5).
2. pre-heated biomass circulating fluid bed gasification furnace according to claim 1 is characterized in that constituting its built-in air preheater by the economizer bank (14) that is located on the dust block board in the inertia separator (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98232113 CN2356743Y (en) | 1998-12-30 | 1998-12-30 | Preheated biological substance ciruclation fluidised bed gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98232113 CN2356743Y (en) | 1998-12-30 | 1998-12-30 | Preheated biological substance ciruclation fluidised bed gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2356743Y true CN2356743Y (en) | 2000-01-05 |
Family
ID=33981211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98232113 Expired - Lifetime CN2356743Y (en) | 1998-12-30 | 1998-12-30 | Preheated biological substance ciruclation fluidised bed gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2356743Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674292A (en) * | 2016-02-02 | 2016-06-15 | 李观德 | Biomass burning device and biomass burning method |
| CN108758596A (en) * | 2018-04-12 | 2018-11-06 | 哈尔滨理工大学 | Ciculation fluidized bed biomass-biomass type coal combined vaporizing-burning boiler arranged side by side |
-
1998
- 1998-12-30 CN CN 98232113 patent/CN2356743Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674292A (en) * | 2016-02-02 | 2016-06-15 | 李观德 | Biomass burning device and biomass burning method |
| CN108758596A (en) * | 2018-04-12 | 2018-11-06 | 哈尔滨理工大学 | Ciculation fluidized bed biomass-biomass type coal combined vaporizing-burning boiler arranged side by side |
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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 | ||
| CX01 | Expiry of patent term |