CN202835331U

CN202835331U - Biomass fuel boiler furnace structure

Info

Publication number: CN202835331U
Application number: CN 201220296639
Authority: CN
Inventors: 郑文虎
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-21
Filing date: 2012-06-21
Publication date: 2013-03-27
Anticipated expiration: 2022-06-21

Abstract

The utility model provides a biomass fuel boiler furnace structure which provides an automatic feeding system, an autoignition system, and an automatic dust pelletizing system. The structure of the furnace is simple and tight, and can achieve preliminary fuel combustion, half gasification combustion and dedusting function. The biomass fuel boiler furnace structure is formed by two large divisions, a main fuel burning furnace and a dedusting heat transfer furnace. The fuel complete the first burning process in the main fuel burning furnace, then the produced heat and smoke go into the dedusting heat transfer furnace via a special heat conduction channels, and the high temperature smoke accomplishes the second gasification then complete combustion in the unique structure of the dedusting heat transfer furnace and accomplish a cyclone gravitational dust collection in the dedusting funnel of the dedusting furnace. The high temperature smoke heat is discharged through the dedusting furnace after fully absorbed by a splash jacket surrounded by the main fuel burning furnace and the dedusting furnace.

Description

A kind of biomass fuel boiler chamber structure

Technical field

The utility model relates to a kind of novel biomass fuel boiler chamber structure, can realize the biomass fuel primary combustion, secondary half gasification, and combustion and finish simultaneously dedusting function.

Background technology

Along with singing loudly of " wideling popularize energy saving environmental protection product " " protection of the environment; protect our earth " these slogans; increasing people has recognized necessity and the importance of protection of the environment, is therefore also accepted by more people substituting traditional fuel oil, gas, coal burning boiler as energy saving and environment friendly biomass fuel boiler and uses.But the automaticity of biomass fuel boiler integral body in the market is on the low side, boiler thermal output is not up to standard, soot emissions also are difficult to up to standard, thereby heat the regenerative resource of this national big country of biomass fuel being promoted the field at boiler and become a restriction point.

The utility model content

Problem for above-mentioned existence, the utility model purpose provide a kind of simple in structure, automaticity is high, fuel saving also falls oligosaprobic biomass fuel boiler chamber structure, thereby accomplish to improve the thermal efficiency fuel saving of boiler combustion, make biomass fuel boiler reach the more humane purpose of more energy-conserving and environment-protective.This kind biomass fuel boiler chamber structure mainly is comprised of fuel combustion main furnace chamber and dust-collecting and heat exchanging burner hearth two large divisions, fuel is admitted to burning and finishes first step combustion process in the main furnace chamber by advancing fuel port, the heat of high temperature and the flue gas that produce under the effect of the external air inducing power that configures are introduced into the dust-collecting and heat exchanging chamber via the different passage of heat of a Gent, the flue gas of high temperature is finished again completing combustion of second gasification in the structure of dust-collecting and heat exchanging chamber uniqueness, and in the dedusting funnel of dirt pocket, finish whirlwind gravitational dust collection process, after the water jacket of the heat of the flue gas of final high temperature outside being enclosed in burning main furnace chamber and dedusting burner hearth fully inhaled, via placing the blast pipe in the dedusting funnel to discharge.

The utility model mainly is applicable to the biomass fuel boiler chamber structure and uses, characteristics of the present utility model: a kind of biomass fuel boiler chamber structure, by burning main furnace chamber, dust-collecting and heat exchanging burner hearth, passage of heat dedusting funnel, blast pipe, grate, main fire door, burning main furnace chamber cleaning door, dust-collecting and heat exchanging burner hearth cleaning door charging aperture, lighting-up tuyere, water jacket forms.

Be connected by passage of heat between burning main furnace chamber and the dust-collecting and heat exchanging burner hearth; The built-in dedusting funnel of dust-collecting and heat exchanging burner hearth, this funnel are up big and down small type structure; Dedusting hopper centre position is one of blast pipe fixedly;

The passage of heat that connects between burning main furnace chamber and the dust-collecting and heat exchanging burner hearth is the circular arc of burning main furnace chamber and the tangent line of dedusting funnel top edge circular arc.

The high-temperature flue gas that burning main furnace chamber fuel combustion produces is introduced the funnel of circular arc and is formed one along the flue gas stream of hopper walls rotation along this road tangent line of passage of heat; can drop after the particle dust that air-flow carries when rotating in funnel impinges upon on the smooth wall of funnel and change the bottom of burner hearth in dedusting, thereby reach the purpose of whirlwind gravitational dust collection.

When the flue gas of high temperature in the main furnace chamber entered the dedusting funnel along passage of heat, under the steric requirements of this airtight high temperature of dedusting funnel top, imperfect combustion sufficient flue gas can carry out second gasification and burn, has improved the combustion thermal efficiency of boiler.

Description of drawings

Fig. 1 the utility model structural representation

The specific embodiment

Concrete structure: see figure: this kind biomass fuel boiler chamber structure is comprised of burning main furnace chamber (1) and dust-collecting and heat exchanging burner hearth (2) two large divisions, burning main furnace chamber (1) sidewall is provided with charging aperture (10) and lighting-up tuyere (11), can install automatic feeding and automatic ignition device respectively, fuel drops on grate (6) after entering burning main furnace chamber (1) via charging aperture (10), by automatic ignition device it is lighted and to take fire, outside under the effect of the pressure air inducing power of configuration, a large amount of heat that burning produces and flue gas are introduced dust-collecting and heat exchanging burner hearth (2) through passage of heat (3), in dust-collecting and heat exchanging burner hearth (2), finish second gasification burn again and the whirlwind gravitational dust collection after, the heat of flue gas is by the water absorption cmpletely in the water jacket (12), and remaining part waste gas is via placing the blast pipe (5) in the dedusting funnel (4) to discharge.

Embodiment: as shown in the figure: fuel drops on grate (6) after entering burning main furnace chamber (1) via charging aperture (10); by automatic ignition device it is lighted and to take fire; outside under the effect of the pressure air inducing power of configuration; the high-temperature flue gas heat that burning main furnace chamber (1) fuel combustion produces is introduced the funnel of circular arc and is formed one along the flue gas stream of hopper walls High Rotation Speed along the circular arc of this road burning main furnace chamber of passage of heat (3) and the tangent line of dedusting funnel (4) top edge circular arc; can drop after the particle dust that air-flow carries when rotating in dedusting funnel (4) impinges upon on the smooth wall of funnel and change the cleaning door place (9) of the bottom of burner hearth in dedusting; simultaneously when flue gas is introduced into dust-collecting and heat exchanging chamber (2); under the steric requirements of this airtight high temperature; imperfect combustion sufficient flue gas carry out again second gasification again combustion process burn fully; in dust-collecting and heat exchanging burner hearth (2), finish second gasification burn again and the whirlwind gravitational dust collection after; the heat of flue gas is by the water absorption cmpletely in the water jacket (12), and remaining part waste gas is via placing the blast pipe (5) in the dedusting funnel (4) to discharge.

Claims

1. biomass fuel boiler chamber structure, by burning main furnace chamber (1), dust-collecting and heat exchanging burner hearth (2), passage of heat (3) dedusting funnel (4), blast pipe (5), grate (6), main fire door (7), burning main furnace chamber cleaning door (8), dust-collecting and heat exchanging burner hearth cleaning door (9) charging aperture (10), lighting-up tuyere (11), water jacket (12) forms;

The burning main furnace chamber (1) with dust-collecting and heat exchanging burner hearth (2) between be connected by passage of heat (3); The built-in dedusting funnel of dust-collecting and heat exchanging burner hearth (2) (4), this funnel are up big and down small type structure; Dedusting funnel (4) center is (5) one of blast pipes fixedly.

2. described a kind of biomass fuel boiler chamber structure according to claim 1; it is characterized in that; the passage of heat that connects between burning main furnace chamber and the dust-collecting and heat exchanging burner hearth is the circular arc of burning main furnace chamber and the tangent line of dedusting funnel top edge circular arc; under the effect of the external air inducing power that configures; the high-temperature flue gas that burning main furnace chamber fuel combustion produces is introduced the funnel of circular arc and is formed one along the flue gas stream of hopper walls rotation along this road tangent line of passage of heat; can drop after the particle dust that air-flow carries when rotating in funnel impinges upon on the smooth wall of funnel and change the bottom of burner hearth in dedusting, can clear up from dust-collecting and heat exchanging burner hearth cleaning door.