CN2573969Y

CN2573969Y - Smokeless combustion coal-fired stove

Info

Publication number: CN2573969Y
Application number: CN 02248701
Authority: CN
Inventors: 黎永佳
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-18
Filing date: 2002-10-18
Publication date: 2003-09-17
Anticipated expiration: 2012-10-18

Abstract

The utility model discloses a new smokeless combustion coal-fired stove. A slag shifting hole is arranged on a grate of the utility model. A coal feeding hole is arranged on the slag shifting hole and is communicated with a combustion chamber. The coal feeding hole extends outwards, forming a preheating chamber. The utility model can avoid that the coal which is incompletely combusted is discharged together with coal slag, and can avoid the banking fire phenomenon; simultaneously, the heat loss is decreased; the combustion temperature and efficiency can be increased.

Description

The coal furnace of smokeless combustion

The utility model relates to a kind of coal furnace of smokeless combustion.

The existing coal furnace that is widely used in the coal combustion of processing of farm products has only two mouths, as shown in FIG., one is (ash) mouth 5 of slagging tap that is positioned at storage slag (ash) chamber, one is the coal feeding hole 2 that is positioned at furnace upper end, and its stoking method is that the new coal that temperature is lower adds on oxide layer (burning zone).Can cause the banking fire phenomenon like this, the CO of its generation and volatile ingredient can not fully be burnt and outside the effusion stove, contaminated environment; And also easily the fire coal through completing combustion is not drained together with waste residue when dialling slag, cause the phenomenon of waste of fuel.

The purpose of this utility model is to provide a kind of coal furnace that can make the smokeless combustion of coal completing combustion.

In order to achieve the above object, coal furnace of the present utility model comprises body of heater and is arranged on coal feeding hole on the body of heater, is a combustion chamber in the body of heater, and the bottom, combustion chamber is provided with the horizontal stove crust of a level, and stove crust bottom is a dreg chamber, is connected with a slag notch mutually with dreg chamber; Stove crust of the present utility model top is provided with one group of cinder notch, and coal feeding hole is arranged to be dialled above the cinder notch, and communicates with the combustion chamber, and coal feeding hole stretches out and forms a preheating chamber.

Body of heater of the present utility model upper end is provided with half tapered heat gathering cover.

Owing to adopted above-mentioned measure, the utility model can be observed combustion position in the stove by dialling cinder notch, pull out along the lime-ash of stove crust level with dialling the slag rod, make way for the burning zone natural subsidence on top, can avoid the fire coal of incomplete combustion is drained together with cinder thoroughly burning.Secondly, the utility model with coal feeding hole from traditional body of heater upper end position, dislocation is in one side of body of heater, communicate with the combustion chamber, and formation one preheating chamber that stretches out, utilize the heat and the radiation of combustion chamber that the coal that need newly add is carried out preheating, drying, destructive distillation, the gas of in these processes, separating out (comprising CO and flammable volatile ingredient), enter in the gathering burn chamber with secondary air and thoroughly to be burnt, avoided the banking fire phenomenon, reduce the thickness of burning zone, allowed air ratio waltz through zoneofoxidation and reducing zone, arrived gathering burn chamber.Form two zoneofoxidations in the upper and lower of reducing zone like this, realize twice combustion, thereby guarantee to realize the thorough burning and the smokeless combustion of coal effectively.Simultaneously, heat gathering cover returns reflect heat in the gathering burn chamber, has reduced outside heat transmission, thereby has reduced thermal loss, improves ignition temperature and efficient.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.

Fig. 1 is the side sectional view of prior art coal furnace;

Fig. 2 is a side sectional view of the present utility model;

Fig. 3 is a front section view of the present utility model.

As shown in fig. 1, the coal furnace of prior art has a body of heater 1, and the horizontal stove of level crust 6 is arranged at body of heater 1 bottom, is dreg chamber 12 below the stove crust 6, and slag notch 5 communicates with dreg chamber 12, and it is top that stove clings to is combustion chamber 7, and coal feeding hole 2 is positioned at the top of combustion chamber; The body of heater top is communicated with a heating pipe 9 or other heat exchangers, and the high-temperature gas that produces in the combustion chamber can be passed to other device by heating pipe 9, and product is dried.

As shown in Fig. 2 and Fig. 3, the utility model is offered one group of cinder notch 4 above the stove crust, when observing the cinder deepening by dialling cinder notch 4, this layer coal is described through thoroughly burning, and horizontal cross is dialled slag again, avoids blindly dialling slag by slag notch 5.Coal feeding hole 3 is not arranged on the top of combustion chamber 7, dials above the cinder notch 4 and be arranged on, and laterally communicates with combustion chamber 7.Coal feeding hole 2 stretches out and forms a preheating chamber 3, and preheating chamber 3 can design its length width as required, and shape can be justified can be square, and generally speaking, its length can be 10-60cm, the wide 8-30cm that can be, one to three row's honeycomb briquette placed side by side.Preheating chamber can be built to build and form with refractory brick, and also available flame-proof kiln combustion system forms, or forms with the refractory concrete casting.

Be provided with a half-cone heat gathering cover 8 between the upper end of body of heater 1 and heating pipe 9 or other heat exchangers, make the body of heater upper end form a gathering burn chamber 10.Heat gathering cover is welded with iron plate or other metal material Volume are curved, and the inner surface reinforcement is coated with then and spreads the thick refractory concrete of about 5cm, treat that the stickup of refractory concrete and metallic plate is solidified after, adding one deck can enhanced rad and the coating of fire resistance.

Be provided with a plurality of three warm-air pipes 11 around body of heater 1 bottom, it is with the secondary air of coal feeding hole 3, and supplemental oxygen and rotation mixing at a high speed make coal can thoroughly be burnt by moment in gathering burn chamber at the CO that separated out by thermal process and other flammable volatile ingredient.

Claims

1. the coal furnace of a smokeless combustion comprises body of heater and is arranged on coal feeding hole on the body of heater, is a combustion chamber in the body of heater, and the bottom, combustion chamber is provided with a horizontal stove crust, and stove crust bottom is a dreg chamber, is connected with a slag notch mutually with dreg chamber; It is characterized in that: described stove crust is provided with one group of cinder notch; Described coal feeding hole is arranged to be dialled above the cinder notch, and communicates with the combustion chamber; Described coal feeding hole stretches out and forms a preheating chamber.

2. the coal furnace of a kind of smokeless combustion according to claim 1, it is characterized in that: described preheating chamber builds up with refractory material.

3. the coal furnace of a kind of smokeless combustion according to claim 1 is characterized in that: be provided with a heat gathering cover on the described body of heater.

4. the coal furnace of a kind of smokeless combustion according to claim 3, it is characterized in that: described heat gathering cover becomes the half cone type.

5. the coal furnace of a kind of smokeless combustion according to claim 4, it is characterized in that: described heat gathering cover inner surface has one deck refractory concrete.

6. the coal furnace of a kind of smokeless combustion according to claim 5, it is characterized in that: described refractory concrete surface scribbles the coating of enhanced rad and fire resistance.

7. the coal furnace of a kind of smokeless combustion according to claim 1 is characterized in that: be provided with a plurality of three warm-air pipes around the described bottom of furnace body.