CN201014475Y

CN201014475Y - Solid fuel gasification combustion boiler

Info

Publication number: CN201014475Y
Application number: CN 200720115917
Authority: CN
Inventors: 张伟; 孙诚信
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-06
Filing date: 2007-04-06
Publication date: 2008-01-30
Anticipated expiration: 2017-04-06

Abstract

The utility model discloses a solid fuel gasification burning boiler, comprising a boiler body and a preheating burning furnace. The inner cavity of the boiler is separated by separation arc from top to bottom, wherein, the top part is a main heated surface of the boiler, while the lower part is a gas generating chamber; the preheating burning furnace is communicated with the gas generating chamber via the gas outlet, the preheating burning furnace is communicated with the main heated surface of the boiler via the fire-spray port, and a dust-removal plate is arranged between the fire-spray port and the coal gas outlet. The gas generating chamber is internally provided with a conical rotary grate or a level fixed grate, and the lower part of the grate is provided with an air-supply device. As the fuel is sent to the burning chamber for burning after being gasified, the utility model can save energy more than 30 percent; by adopting the gas burning to carry on dust-removal treatment, the utility model does not discharge harmful smoke and dust; the fuel produces gas for burning under normal pressure, the utility model is safe and steady; the utility model has small occupying area and low cost and is suitable for being used in various kinds of heating, production, and scouring bath, etc.

Description

The solid fuel gasification burning boiler

Technical field

The utility model belongs to the technical field of solid fuel gasification combustion apparatus.

Background technology

Existing gasification boiler, it is coal bunker that its structure mostly is epimere greatly, and interlude is a gasification combustion furnace, and hypomere is grey chamber, and generally by coal or dropped coal cone sealing, wayward, coal gas easily leaks vaporizer, and is subjected to the restriction of fuel type.

Summary of the invention

The purpose of this utility model is to provide a kind of sufficient combustion, and is pollution-free, thermal efficiency height, the solid fuel gasification burning boiler of realization energy-conserving and environment-protective.

The technical solution of the utility model is: the utility model solid fuel gasification burning boiler comprises boiler body and preheated burning stove, and boiler intracavity cuts off by cutting off arch up and down, is boiler master heating surface above, is the combustion gas generation chamber below; The preheated burning stove is connected with the combustion gas generation chamber by gas outlet, the preheated burning stove is connected with boiler master heating surface by bocca, between bocca and the gas exit dedusting plate is set, combustion gas generation chamber bottom is provided with airduct one time, in the combustion chamber of preheated burning stove secondary air channel is set.

Be provided with taper revolving grate or horizontal fixed fire grate in the described combustion gas generation chamber, be provided with the disintegrating slag circle around the fire grate, the disintegrating slag circle is arranged in the ash-pan of water seal, is provided with scraper plate in the ash-pan, and the fire grate below is provided with air-supply arrangement.

Advantage of the present utility model: owing to burning in the combustion chamber of delivering to the preheated burning stove after fuel is gasified, made full use of the combustible component in the fuel, facts have proved, compared, can save energy more than 30% with direct-fired boiler; Owing to adopt gasification, and combustion and carried out the dust discharge processing, there are not harmful soot emissions, reached the requirement of national environmental standard fully; Fuel produces gas and burns safety and stability under normal pressure; Compact conformation, the generation of collection coal gas, burning and boiler body are one, floor space is little; With low cost, easy to operate and safety; Applied widely, can be used for various heating, production, bathing etc.

Description of drawings

Fig. 1 is the state diagram of cutting open of the utility model solid fuel gasification burning boiler front view.

The specific embodiment

The utility model solid fuel gasification burning boiler is made up of boiler body 3 and preheated burning stove two parts, and body of heater is welded into double-deck water-cooling wall by steel plate, is supported on the ground 11 by bearing 7.Boiler intracavity cuts off by cutting off arch 5 up and down, is boiler master heating surface 2 above, is the combustion gas generation chamber below; Be connected by the preheated burning stove between combustion gas generation chamber and the boiler master heating surface.Be provided with taper revolving grate 15 in the gas generating chamber by deceleration device 16 control rotations, be provided with disintegrating slag circle 8 around the taper revolving grate, the disintegrating slag circle is arranged in the ash-pan 9 of band water seal, be provided with scraper plate 17 in the ash-pan 9, the air-supply arrangement that the revolving grate below is provided with is arranged in the underground basis 10, is made up of airduct 14, air blast 12 and a main air intake 13.And be provided with coal filling hole 6.The preheated burning stove is arranged on the back of boiler, is made of furnace wall 21 and the heat-insulation layer 25 outside it, dedusting plate 22 is set with gas outlet 18, bocca 19 separately in its combustion chamber, and is connected with combustion gas generation chamber and boiler master heating surface by these two openings.It also is provided with fire door, observation panel 23, explosion relief door 24, secondary air channel 26 and grey chamber door 20.Main heating surface is made up of steel pipe 27 and steel plate, and 1 is flue, and 28 are the heat energy outlet, and 4 for observing door.

The course of work of the present utility model is: add ignition substance in the combustion chamber with the preheated burning stove earlier and light, dose coke or moulded coal above, coal cinder (preventing over-emitting black exhaust), start air-introduced machine, after treating that intensity of a fire combustion is prosperous, putting into fire-lighter on the fire grate 15 of combustion gas generation chamber lights, add coal cinder, approximately 200mm is thick, open air blast 12, a small amount of main air intake 13 of opening, after treating that grate forms stable burning zone, begin to add solid fuel from firing door 6 again, layer thickness control is about 500mm, move flat the surface, open big main air intake 13 and strengthen the blow rate required, fuel begins gasification and produces fuel gas under a wind action, contain volatilization effusion thing and CO gas and tiny carbon granule, enter in the combustion chamber by gas outlet 18, meet behind the naked light under the secondary wind action, combustible mixes with air, beginning burning tempestuously under high temperature action, the flue gas velocity of liquid assets is slower in the combustion chamber, under the effect of dedusting plate 22, the ash particle that has burnt can be deposited on the preheating fire grate, has reduced the flue dust of boiler, high-temperature flue gas and combustion flame enter boiler master heating surface by bocca 19 it are heated, treat chamber wall temperature hold certain heat is arranged after, the fuel that stops the preheated burning stove is supplied with, whole combustion system is in the smooth combustion course of work.Fuel constantly consumes in combustion process gradually in the vaporizer, the cinder that produces is stirred fragmentation under the interaction of taper revolving grate 15 eccentric rotary and disintegrating slag circle 8 or the horizontal fixed fire grate is cleared up the broken water that falls into ash-pan 9 through stove hook poke, with scraper plate 17 cinder is discharged.Observe flame and fuel situations by the observation door on observation panel on the combustion chamber 23 and the boiler 4, when find that flame becomes deficient the time, turn off the blast, prick fuel bed at firing door 6 usefulness coal prickers, dose fresh fuel to requested number, reopen air blast 12, burn away.

Claims

1. a solid fuel gasification burning boiler comprises boiler body (3) and preheated burning stove, it is characterized in that: boiler intracavity cuts off by cutting off arch (5) up and down, is boiler master heating surface (2) above, is the combustion gas generation chamber below; The preheated burning stove is connected with the combustion gas generation chamber by gas outlet (18), and the preheated burning stove is connected with boiler master heating surface by bocca (19), and dedusting plate (22) is set between bocca and the gas exit; An airduct (13) is set below the combustion gas generation chamber, secondary air channel (26) is set in the combustion chamber of preheated burning stove.

2. solid fuel gasification burning boiler according to claim 1, it is characterized in that: be provided with taper revolving grate (15) or horizontal fixed fire grate in the described combustion gas generation chamber, be provided with disintegrating slag circle (8) around the taper revolving grate, the disintegrating slag circle is arranged in the ash-pan (9) of band water seal, is provided with scraper plate (17) in the ash-pan.