CN2585046Y

CN2585046Y - Combustion furnace using gas produced by coal

Info

Publication number: CN2585046Y
Application number: CN 02280639
Authority: CN
Inventors: 冯之军
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-22
Filing date: 2002-10-22
Publication date: 2003-11-05
Anticipated expiration: 2012-10-22

Abstract

The utility model discloses a combustion furnace using coals for producing gas, which comprises a gasification chamber. The utility model is characterized in that a fire grate of the gasification chamber is in the shape of concavedown arc-shaped louvres to form a chute of a spiral-type slag eliminator; the upper part of the concavedown arc-shaped fire grate of the gasification chamber is axially provided with the spiral-type slag eliminator. The utility model realize that the gasification chamber can be used for deslagging, the trouble that coals which is used for fully volatilizing volatile matter in the gasification chamber is transferred into a combustion chamber for section combustion is avoided, and besides, the furnace temperature control and operation of the combustion furnace is more convenient. The utility model has the characteristics of simple structure, convenient operation, high thermal efficiency and no pollution.

Description

The coal gas combustion furnace

Technical field

The utility model relates to a kind of combustion furnace, more particularly relates to a kind of coal gas combustion furnace, belongs to the improvement of combustion furnace.

Background technology

At present, the combustion furnace used of heat supply generally has coal furnace, oil burner and gas-fired stove etc.Coal furnace is warmed oneself by the production of people's extensive use, particularly winter, life owing to adopt this cheap fuel of coal.It is all economical than burn crude, product oil, natural gas etc., and cost is low again, and the coal resources in China reserves are abundant more than oil.But, coal furnace is owing to directly use the coal combustion heat supply, can produce a large amount of poisonous and hazardous flue gases and dust, cause pollution to atmosphere and surrounding enviroment, particularly seem even more serious in the lower pollution in winter of air pressure, simultaneously, directly low with its thermal efficiency of coal burning heat supply, maximum has only 72%, has wasted coal resources greatly.Also have now and adopt the coal gas sectional combustion to carry out heat supply, number of patent application is that 02273244.6 combustion furnace adopts this structure exactly.But this combustion furnace can't remove the gred in its vaporizer, and the fire coal that makes vaporizer take off most fugitive constituent also must be transplanted on and carry out sectional combustion in the combustion chamber, has brought inconvenience for the Control for Kiln Temperature and the operation of combustion furnace.

Summary of the invention

The purpose of this utility model provides a kind of coal gas combustion furnace, not only vaporizer can remove the gred, the fire coal of having avoided taking off most fugitive constituent in the vaporizer is transplanted on the trouble of carrying out sectional combustion in the combustion chamber, and makes the Control for Kiln Temperature of combustion furnace and more convenient to operate.

The purpose of this utility model is achieved in that it includes vaporizer, is characterized in that: the fire grate of vaporizer is down arcs of recesses blind shaped, in vaporizer down the arcs of recesses fire grate above be axially installed with spiral-type slag eliminator.

The utility model has the advantages that, because the fire grate of vaporizer is arcs of recesses blind shaped down, slag can be accumulated on the fire grate easily, be convenient to air feed in vaporizer again, and the unlikely slag that makes drops in the air compartment, again because the top of fire grate is provided with spiral-type slag eliminator, the slag that enters on the fire grate can be scavenged into outside the stove by spiral-type slag eliminator again easily, the fire coal of having avoided taking off most fugitive constituent is transplanted on the trouble of carrying out sectional combustion in the combustion chamber, brought convenience for the Control for Kiln Temperature and the operation of combustion furnace, be a kind of novelty and the combustion furnace goods that show unique characteristics, have simple in structure, easy to operate, thermal efficiency height, free of contamination characteristics.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is a concrete structure cut-away section schematic diagram of the present utility model;

Fig. 2 is the right view of Fig. 1.

The specific embodiment

In Fig. 1-2, body of heater 11 usefulness refractory concretes build by laying bricks or stones, and body of heater 11 sidewalls are embedded with water-cooling pipe 8.A vaporizer 9, fire grate 5, combustion chamber 19, air compartment 2, heat outlet 21 are arranged in body of heater 11.Fire grate 5 is arcs of recesses blind shaped down, constitutes the chute of spiral-type slag eliminator 6.Charging aperture 12 is arranged at the top of vaporizer 9, sealing is housed at the middle part of charging aperture 12 use turnover panel, and an air compartment 2 that passes through air port 3 to vaporizer 9 independent air feeds is arranged below in vaporizer 9.The gas port 16 that communicates with combustion chamber 19 is arranged at the top of vaporizer 9, fix the size that an adjustable plate 14 is controlled gas port 16 on the gas port 16 in vaporizer 9, enter the coal gas amount of combustion chamber 19 in order to adjusting, one end of Control Shaft is equipped with the handle of deciding device with lock and is installed on the body of heater 11, and a secondary air channel 17 also is equipped with at gas port 16 places in combustion chamber 19.Also has a hot exhanst gas outlet 20 that communicates with combustion chamber 19 in the bottom of gas port 16, on vaporizer 9 above the hot exhanst gas outlet 20 and the dividing plate 4 between the combustion chamber 19, a dividing plate chamber is arranged, the flashboard made from refractory material 18 places in the dividing plate chamber, lifting device 15 is a kind of hydraulic cylinder, be fixed on the top of body of heater 11 by the dividing plate chamber, lifting device 15 and flashboard 18 are connected by metallic bond, and the switching that is used to control hot exhanst gas outlet 20 is used for regulating the control furnace temperature.Bottom coals in the vaporizer 9 are deposited on the fire grate 5 that is following arcs of recesses blind shaped after firing into slag, when reducing rear motor, temperature drives spiral-type slag eliminator 6 work, spiral-type slag eliminator 6 rotations, slag is sent body of heater 11 along helicoid with slag by the helical blade of rotation and is entered the slag storehouse.The charging aperture 12 at vaporizer 9 tops has the annular water tank that is used to seal vaporizer 9 with vaporizer 9 for one.Capping 13 peripheries of vaporizer 9 have a shirt rim, and capping 13 is enclosed on the charging aperture 12 at vaporizer 9 tops by the shirt rim button that is inserted in the tank, make the coal gas in the vaporizer 9 not run mistake from the charging aperture 12 at vaporizer 9 tops.In vaporizer 9 front side walls or left side, there is a fire door 10 on the right side.Small-sized stove can pass through fire door 10 coal in stove, Large Furnace can be carried out flat coal by fire door 10, regulate owing to carry out stoker feed and cause coal seam thickness inequality in the vaporizer 9, also can become flexible sintering coke button together and improve coal-fired gas production by fire door 10 by charging aperture 12.The sealing plate 1 that inserts in the tank is housed in air compartment 2 prevents that coal gas from entering the generation tempering, make burner work safer.Also be fixed with the water injector by automatic temperature measurement device control in air compartment 2, the temperature that is used for controlling fire grate 5 improves the gas production of vaporizer 9.Air outlet 3 is arranged in air compartment 2, be used for from lower curtate air feed in vaporizer 9 of fire grate 5 combustion-supportingly, also have an air port 7 to be used for air feed in vaporizer 9 in a side of vaporizer 9.

During work, prevent to burn out slag remover 6, in vaporizer, add the timber that up-igniting is used again by fire door 10 auxilliary one deck ashes on spiral-type slag eliminator 6.Take off capping 13, charging aperture 12 coal in vaporizer 9 from vaporizer 9 tops, coal drops into by the turnover panel in the charging aperture 12 on the fire grate 5 of the band slag in the vaporizer 9 again, and turnover panel with charging aperture 12 sealings, makes the coal seam in the vaporizer 9 even by fire door 10 flat coals again.Capping 13 is enclosed in coal gas in the vaporizer 9 by the water seal that is formed by tank of charging aperture 12 peripheries.Timber ignites, putting down adjustable plate 14 closes gas port 16, by carrying flashboard 18 on the hydraulic cylinder 15 heating gas outlet 20 is opened, fire is from heating gas outlet 20 ejections, after combustion chamber 19 temperature rise to more than 500 ℃, can closed shutter 18, open adjustable plate 14 again, make the low temperature coal gas that produce in the vaporizer 9 enter the wind mixed combustions of sending into secondary air channel 17 in the combustion chamber 19 by gas port 16.After the fugitive constituent in the coal takes off to the greatest extent, open the sluices 18 again, 3,7 air-supplies from the air port, high temperature burns heating gas fast, improves burning velocity like this, has increased coal gasification intensity.After being burned to certain hour, when the data of point for measuring temperature reaction can be removed temperature, stove water jet water spray, spiral-type slag eliminator 6 work slagging-off when point for measuring temperature temperature height, just do not burn away when burning, and so just realize continuous automatic control burning.The hot gas that gas-fired produces is transported in the dry kiln product is carried out the drying processing by the heat outlet 22 of 23 upper ends, combustion chamber.This combustion furnace can also be used for other boiler heating system.

Claims

1, a kind of coal gas combustion furnace, it includes vaporizer, it is characterized in that: the fire grate of vaporizer is down arcs of recesses blind shaped, in vaporizer down the arcs of recesses fire grate above be axially installed with spiral-type slag eliminator.

2, combustion furnace according to claim 1 is characterized in that: the bottom of gas port also has a hot exhanst gas outlet that communicates with the combustion chamber in vaporizer.

3, combustion furnace according to claim 2 is characterized in that: on the vaporizer of its top of described hot exhanst gas outlet and the dividing plate between the combustion chamber dividing plate chamber is arranged, the flashboard that cooperates with hot flue gas places in the dividing plate chamber.