CN203203027U - Boiling furnace - Google Patents
Boiling furnace Download PDFInfo
- Publication number
- CN203203027U CN203203027U CN 201320192875 CN201320192875U CN203203027U CN 203203027 U CN203203027 U CN 203203027U CN 201320192875 CN201320192875 CN 201320192875 CN 201320192875 U CN201320192875 U CN 201320192875U CN 203203027 U CN203203027 U CN 203203027U
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- Prior art keywords
- furnace
- fluidized bed
- flue
- burner hearth
- combustion chamber
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Abstract
The utility model provides a boiling furnace for solving the problems of high energy consumption and low heat efficiency caused by incomplete combustion of soft coals when a heat source is supplied to a molten salt furnace by utilizing a chain grate furnace in the prior art. The boiling furnace comprises a hearth, a wind distribution system, a flue and a U-shaped combustion chamber, wherein a fluidized bed is arranged in the hearth; the wind distribution system is arranged at the lower end of the hearth; a flue gas outlet of the flue is communicated with a heat source inlet of a molten salt furnace; the U-shaped combustion chamber is arranged at the joint of the hearth and the flue gas outlet. By utilizing the technical scheme disclosed by the utility model, the adaptability of the boiling furnace to fire coals is beneficially improved, the combustion efficiency is greatly improved, and the energy is saved.
Description
Technical field
The utility model relates to chemical production field, relates in particular to a kind of fluidized bed furnace.
Background technology
At present, at home in the Melamine Production process, be mainly combustion gas or oil burner for what molten salt furnace provided thermal source, what the employing of partial fuel coal type was arranged is that chain furnace and need burn high-quality bituminous coal, use in addition the chain stove that thermal source is provided, can make bituminous coal combustion not exclusively cause energy consumption high, flue-gas temperature is carried to be come up, and the thermal efficiency is low.
Therefore, in the prior art, use the chain stove to provide thermal source as molten salt furnace, make bituminous coal combustion cause not exclusively that energy consumption is high, the thermal efficiency is low, for this problem, not yet propose at present effective solution.
Summary of the invention
Main purpose of the present utility model provides a kind of fluidized bed furnace, uses the chain stove to provide thermal source as molten salt furnace to solve in the prior art, makes bituminous coal combustion not exclusively cause the problem that energy consumption is high, the thermal efficiency is low.
To achieve these goals, the utility model provides a kind of fluidized bed furnace.
Fluidized bed furnace of the present utility model comprises: burner hearth is provided with fluid bed in it; The cloth wind system is arranged on the lower end of burner hearth; Flue, its exhanst gas outlet is connected with the thermal source entrance of molten salt furnace; U-shaped combustion chamber is arranged on the junction of burner hearth and exhanst gas outlet.
Further, fluidized bed furnace also comprises: keep off the fire screen plate, be arranged on the junction of burner hearth and U-shaped combustion chamber, the height of gear fire screen plate is less than the height of burner hearth and junction, U-shaped combustion chamber.
Further, the cloth wind system comprises: air distribution plate; Several blast caps are distributed in the upper end of air distribution plate.
Further, fluidized bed furnace also comprises: the bypass flue valve, be arranged on the smoke outlet of flue, and be used for regulating the exhaust gas volumn that enters molten salt furnace.
According to the technical solution of the utility model, by U-shaped combustion chamber being set and keeping off the fire screen plate and greatly improved efficiency of combustion, saved the energy; Adopting fluid bed is the burner of fluidized bed furnace, and not only burning fat coal, and flammable various inferior fuel has improved the adaptability of fluidized bed furnace to fuel.
Description of drawings
Figure of description is used to provide further understanding of the present utility model, consists of the application's a part, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation according to the fluidized bed furnace of the utility model embodiment.
The specific embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Fig. 1 is the structural representation according to the fluidized bed furnace of the utility model embodiment.
As shown in Figure 1, fluidized bed furnace of the present utility model comprises:
In the present embodiment, fluid bed 11 is the burner of this fluidized bed furnace, and the bed material temperature degree on it is generally 850～1050 ℃, scorching hot inertia lime-ash more than 95% in the bed material, these material provide abundant thermal source, and the coal grain that newly adds is heated rapidly, make it stably ignition.The heat part that burning discharges is supplied with molten salt furnace as thermal source, and some is used for adding the hott bed material, makes an interior temperature remain on a stable level.So fluidized bed combustion is to the strong adaptability of fuel, not only burning fat coal, and flammable various inferior fuel, comprise ash content up to 80% bone coal, moisture up to 60% brown coal and coal washing spoil, coal slime etc.Particle diameter is delivered to coal bunker less than the dross coal of 10mm by belt feeder, evenly sends in the burner hearth 10 through coal feeder and coal unloading tube again.
In the present embodiment, by the air that air feed system is sent into, through the air-flow that isobaric bellows Formation cross-section pressure equates, send into fluid bed 11 through blast cap 22, make the red-hot furnace charge that rests on the air distribution plate 21 obtain fluidisation, for making fluidisation even, fluidization quality is stable, and bed resistance is controlled to be 1200Pa, the new fuel that adds mixes with furnace charge, be in fluidization with furnace charge, under this state, coal is heated, burning is until after-flame.
U-shaped combustion chamber 40 is arranged on the junction of burner hearth 10 and exhanst gas outlet 31.
Keep off fire screen plate 50, be arranged on the junction of burner hearth 10 and U-shaped combustion chamber 40, the height of gear fire screen plate 50 is less than the height of burner hearth 10 with 40 junctions, U-shaped combustion chamber, and this structure has guaranteed that burner hearth 10 is communicated with the top of U-shaped combustion chamber 40, is convenient to the discharge of flue gas.
In the present embodiment, the hot flue gas that burner hearth 10 internal combustion produce is by gear fire screen plate 50 time, and an entrained fine particle part is separated, and gets back on the fluid bed 11.Therefore keep off the setting of fire screen plate 50, reduced dust content, and the bed depth on the fluid bed 11 is kept.
In the present embodiment, flue gas enters U-shaped combustion chamber 40 by after keeping off fire screen plate 50, and the entrained fine particle of flue gas is further separated at this, and the particle that separates is unburnt carbon granules a bit, can burn away in U-shaped combustion chamber.Therefore the setting of U-shaped combustion chamber 40 has improved efficiency of combustion greatly, has saved the energy.
In the present embodiment, by the flue-gas temperature of exhanst gas outlet 31, regulate the fluidized bed furnace Coal-fired capacity, simultaneously, regulate the burning air quantity, the flue-gas temperature of flake hearth-tapping 10 is controlled at about 900 ℃.The payload of molten salt furnace can be regulated the exhaust gas volumn that enters molten salt furnace by the aperture of regulating bypass smoke valve 60 and be realized.
In sum, fluidized bed furnace of the present utility model by U-shaped combustion chamber 40 being set and keeping off fire screen plate 50 and greatly improved efficiency of combustion, is saved the energy; Also regulate the gas output of exhanst gas outlet by bypass flue valve 60 is set, thereby made things convenient for the control to Coal-fired capacity; Adopt fine pith to arrange between the adjacent blast cap, increased boiling furnace combustion efficient; Adopting fluid bed 11 is the burner of fluidized bed furnace, and not only burning fat coal, and flammable various inferior fuel has improved the adaptability of fluidized bed furnace to fuel.
Be preferred embodiment of the present utility model only below, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. a fluidized bed furnace is characterized in that, comprising:
Burner hearth is provided with fluid bed in it;
The cloth wind system is arranged on the lower end of described burner hearth;
Flue, its exhanst gas outlet is connected with the thermal source entrance of molten salt furnace;
U-shaped combustion chamber is arranged on the junction of described burner hearth and described exhanst gas outlet.
2. fluidized bed furnace according to claim 1 is characterized in that, described fluidized bed furnace also comprises:
Keep off the fire screen plate, be arranged on the junction of described burner hearth and described U-shaped combustion chamber, the height of described gear fire screen plate is less than the height of described burner hearth and junction, described U-shaped combustion chamber.
3. fluidized bed furnace according to claim 1 is characterized in that, described cloth wind system comprises:
Air distribution plate;
Several blast caps are distributed in the upper end of described air distribution plate.
4. each described fluidized bed furnace in 3 according to claim 1 is characterized in that, described fluidized bed furnace also comprises:
The bypass flue valve is arranged on the smoke outlet of described flue, is used for regulating the exhaust gas volumn that enters described molten salt furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320192875 CN203203027U (en) | 2013-04-16 | 2013-04-16 | Boiling furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320192875 CN203203027U (en) | 2013-04-16 | 2013-04-16 | Boiling furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203203027U true CN203203027U (en) | 2013-09-18 |
Family
ID=49147132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320192875 Expired - Fee Related CN203203027U (en) | 2013-04-16 | 2013-04-16 | Boiling furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203203027U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299656A (en) * | 2015-11-26 | 2016-02-03 | 何相助 | Circulating fluidized bed household refuse boiler with high-position laying pipes and combustion method for circulating fluidized bed household refuse boiler |
| CN110496357A (en) * | 2019-09-24 | 2019-11-26 | 江苏帕斯玛环境科技有限公司 | The plasma cracking device of high saliferous, high concentration organic raffinat |
-
2013
- 2013-04-16 CN CN 201320192875 patent/CN203203027U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299656A (en) * | 2015-11-26 | 2016-02-03 | 何相助 | Circulating fluidized bed household refuse boiler with high-position laying pipes and combustion method for circulating fluidized bed household refuse boiler |
| CN110496357A (en) * | 2019-09-24 | 2019-11-26 | 江苏帕斯玛环境科技有限公司 | The plasma cracking device of high saliferous, high concentration organic raffinat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20210416 |