CN2842206Y

CN2842206Y - Soft-coal smoke-less combustion stove

Info

Publication number: CN2842206Y
Application number: CNU2005200248520U
Authority: CN
Inventors: 张金塘; 李平
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-12
Filing date: 2005-09-12
Publication date: 2006-11-29
Anticipated expiration: 2015-09-12

Abstract

The utility model relates to a combustion furnace, particularly a soft coal smokeless combustion stove. The utility model solves the problems of complicated structure, high manufacturing cost, hard great popularization of the existing soft coal smokeless combustion stove. The soft coal smokeless combustion stove comprises a stove body; a combustion bed formed by fire grates is arranged in the stove body; a cinder barn is arranged below the fire grate; a dry distillation bed is also arranged in the stove body. The dry distillation bed can be a solid plate part on the fire grate; the cinder barn below the fire grate can be divide into air inlet barns which are mutually and transversely sealed and each of the air inlet barns is provided with air inlet door to form the dry distillation bed. The combustion stove can be used for domestic heating and cooking and can be also used for boilers, mineral roasting furnaces and other coal-burning equipment. The utility model has the advantages of reasonable design, simple structure and low cost; the old coal-burning equipment can be simply reformed to form the combustion stove; the combustion stove can effectively eliminate dark fume in the combustion process of soft coal, the Ringelman blackness of the fume emission of the combustion stove is 0.5 or so and fully conforms to the requirements of national environmental protection.

Description

The bituminous coal smokeless burning stove

Technical field

The utility model relates to a kind of combustion furnace, is specially a kind of bituminous coal smokeless burning stove.

Background technology

As everyone knows, the bituminous coal serious environment pollution that directly burns.The smokeless combustion that realizes bituminous coal is a problem anxious to be solved.At present, solve the pollution problem that bituminous coal directly burns, can adopt fume dust remover, but investment is big, the operating cost height; Also can adopt the bituminous coal smokeless burning stove.Existing bituminous coal smokeless burning stove normally makes up the destructive distillation chamber in stove, bituminous coal is earlier in the indoor destructive distillation of destructive distillation, and then enters the combustion chamber and burn, thereby realizes the smokeless combustion of bituminous coal.Existing bituminous coal smokeless combustion furnace structure relative complex, the manufacturing cost height; Structurally there is defective or structural unreasonable in some bituminous coal smokeless burning stove, is positioned at the below, combustion chamber as the destructive distillation chamber.Therefore, existing bituminous coal smokeless burning stove is difficult to the large-scale popularization use.

Summary of the invention

The utility model solves existing bituminous coal smokeless combustion furnace structure relative complex, and there is defective etc. in the manufacturing cost height on the structure, is difficult to the problem that large-scale popularization is used, and a kind of bituminous coal smokeless burning stove of new structure is provided.

The utility model is to adopt following technical scheme to realize: the bituminous coal smokeless burning stove, comprise body of heater, and be provided with the burning bed that forms by fire grate in the body of heater, fire grate is the ashes storehouse down; In body of heater, also be provided with the destructive distillation bed.

According to known coking principle, bituminous coal is isolated with air in destructive distillation, coking, to avoid the direct burning of bituminous coal.Therefore, the bed surface of destructive distillation bed can not be free air-flow to go into.In view of the above, can the destructive distillation bed be set by multiple version.

Described destructive distillation bed is the solid slab part on the fire grate.A part that is about to fire grate is made solid slab, and the solid slab upper face forms the bed surface of destructive distillation bed.Because the solid slab air proof in the fuel combustion on burning bed, is realized destructive distillation to the bituminous coal on this destructive distillation bed.

Ashes storehouse under the fire grate is separated into the air inlet storehouse of mutual transverse sealing, and each air inlet storehouse is provided with inlet flap, forms described destructive distillation bed with this.The fire grate on the top, air inlet storehouse that inlet flap is opened is a burning bed, and the fire grate on the top, air inlet storehouse that inlet flap is closed does not form the destructive distillation bed owing to there being air to penetrate.During fuel combustion on the burning bed, the bituminous coal on the destructive distillation bed is carried out destructive distillation; When burning bed needs coal, with the inlet flap in the air inlet storehouse under the destructive distillation bed open, the inlet flap in air inlet storehouse under the burning bed closes.Like this, burning bed and destructive distillation bed checker are realized the smokeless combustion of bituminous coal.

The bituminous coal that adds in body of heater places earlier on the destructive distillation bed, and the fuel combustion on the burning bed produces high temperature in body of heater, makes the bituminous coal on the destructive distillation bed at high temperature be able to destructive distillation, coking; The discharging flue gas of abundant burning and generation cleaning under the high temperature of the gas that bituminous coal produces in destructive distillation, coking (based on hydrogenation, methane, carbon monoxide) in body of heater; When burning bed need add fuel, with on the destructive distillation bed the bituminous coal of coking be pushed into burning bed or convert the destructive distillation bed to burning bed, the bituminous coal after the coking burns also again and to produce the discharging flue gas of cleaning.

Bituminous coal smokeless burning stove described in the utility model is reasonable in design, simple in structure, low cost of manufacture; Old coal combustion equipment simply transformed also can form this combustion furnace.This combustion furnace can be eliminated dense black flue dust in the bituminous coal combustion process effectively, the protection environment, and the lingemann blackness of its fume emission is about 0.5, meets national requirements for environmental protection fully.This combustion furnace can be realized the completing combustion of bituminous coal, can make full use of the energy, under the situation that produces same heat, can save bituminous coal 10-30%.This combustion furnace can be used for domestic heating, cooks; Can be used for boiler, mineral roaster and other coal combustion equipment.

Description of drawings

Fig. 1 is a kind of concrete structure schematic diagram (the destructive distillation bed is located at the rear portion of body of heater inner chamber) of bituminous coal smokeless burning stove described in the utility model;

Fig. 2 is the A-A profile of Fig. 1;

Fig. 3 is the another kind of concrete structure schematic diagram (the destructive distillation bed is located at the both sides of body of heater inner chamber) of bituminous coal smokeless burning stove described in the utility model;

Fig. 4 is the B-B profile of Fig. 3;

Fig. 5 is the third concrete structure schematic diagram of bituminous coal smokeless burning stove described in the utility model;

Fig. 6 is the C-C profile of Fig. 5;

The specific embodiment

Embodiment 1

The bituminous coal smokeless burning stove comprises body of heater 1, is provided with the burning bed 2 that is formed by fire grate in the body of heater, and fire grate is ashes storehouse 3 down; In body of heater, also be provided with destructive distillation bed 4.

Destructive distillation bed 4 is the solid slab part on the fire grate.A part that is about to fire grate is made solid slab, and the solid slab upper face forms the bed surface of destructive distillation bed.During concrete the manufacturing, the destructive distillation bed part of solid slab can be made one with fire grate, makes as all adopting metal, and it is supported in the body of heater inner chamber.The also available refractory material of the destructive distillation bed of solid slab part is built into, promptly Shi Ji fire grate some be to be supported on the destructive distillation bed that is built into.

The bed surface of destructive distillation bed 4 is higher than burning bed.At this moment, Shi Ji fire grate some be to be supported on the destructive distillation bed sidewall that is built into; When destructive distillation bed and fire grate one, directly with destructive distillation bed part projection.Like this, make bituminous coal on the destructive distillation bed be positioned at the more high-temperature region of body of heater, more help the destructive distillation of bituminous coal.At this moment, the destructive distillation bed of solid slab also can not contact or make one with fire grate, fix and be located immediately at above the fire grate and with inboard wall of furnace body.

Destructive distillation bed 4 can be arranged on any part (in fact also can say on the optional position that is arranged on fire grate) of body of heater inner chamber.As front portion, rear portion or the sidepiece that can be arranged on the body of heater inner chamber, certainly, but also both sides, front side portion, rear lateral portion are provided with the destructive distillation bed simultaneously.This mainly decides on the bulk of body of heater inner chamber.When the destructive distillation bed is set, should guarantee that burning bed has sufficient space, to guarantee to produce required heat.

Embodiment 2

Ashes storehouse 3 under the fire grate is separated into the air inlet storehouse of mutual transverse sealing, and each air inlet storehouse is provided with inlet flap, forms described destructive distillation bed 4 with this.

The quantity in air inlet storehouse is decided on the size of body of heater.The body of heater size is bigger, and the ashes storehouse can be divided into a plurality of separate air inlet storehouses.By controlling the inlet flap in each air inlet storehouse, the fire grate on each top, air inlet storehouse alternately uses as burning bed and destructive distillation bed.

Claims

1, a kind of bituminous coal smokeless burning stove comprises body of heater (1), is provided with the burning bed (2) that is formed by fire grate in the body of heater, and fire grate is ashes storehouse (3) down; It is characterized by: in body of heater, also be provided with destructive distillation bed (4).

2, bituminous coal smokeless burning stove as claimed in claim 1 is characterized by: destructive distillation bed (4) is the solid slab part on the fire grate.

3, bituminous coal smokeless burning stove as claimed in claim 2 is characterized by: the bed surface of destructive distillation bed (4) is higher than burning bed.

4, bituminous coal smokeless burning stove as claimed in claim 1 is characterized by: the ashes storehouse (3) under the fire grate is separated into the air inlet storehouse of mutual transverse sealing, and each air inlet storehouse is provided with inlet flap, forms destructive distillation bed (4) with this.