CN2438922Y

CN2438922Y - Coal-firing burner

Info

Publication number: CN2438922Y
Application number: CN 00247529
Authority: CN
Inventors: 鄢守杰; 刘森
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-29
Filing date: 2000-08-29
Publication date: 2001-07-11
Anticipated expiration: 2010-08-29

Abstract

The utility model relates to a coal-firing burner, which is composed of a housing, a boiler chamber and a fire grate. The utility model is characterized in that a water-cooling jacket is formed between the inner wall of the boiler chamber and the housing, a pipe port of a water inlet pipe on the water-cooling jacket and a pipe port of a water outlet pipe are respectively connected with a water outer pipe and a water return pipe of an external-connection coal-firing boiler, a fire jetting port on the side face of the housing of the coal-firing burner is connected with a boiler chamber of the external-connection coal-firing boiler, and the fire grate of the lower part of the boiler chamber of the coal-firing burner is a fire grate capable of swinging up and down. The coal-firing burner has the advantages of simple structure, low manufacture cost and obvious smoke eliminating and dust removing effect and is suitable for matching with existing coal-firing boiler, and the utility model can burn faulty coal.

Description

A kind of coal-fired combusting device

A kind of coal-fired combusting device belongs to boiler corollary equipment field.

Existing coal-burning boiler generally is by body of heater, burner hearth, fire grate, flue is formed, point during combusting boiler fire coal be the water in the burning directly-fired kiln courage on the fire grate in burner hearth, the mode soot emissions that this fire coal directly burns are seriously polluted, be difficult to reach the environmental protection standard requirement, coal-burning boiler soot emissions for many years are up to standard to be the technical barrier of coal-burning boiler always, in order to solve this technical barrier, more existing units adopt gas boiler to replace coal-burning boiler, reach the environmental protection standard requirement though can reduce smoke contamination with gas boiler, but existing gas boiler complex structure, the manufacturing cost height, boiler workman operating technology difficulty is big, so it is applied and is subjected to certain restriction.

It is a kind of simple in structure that the purpose of this utility model is to provide, low cost of manufacture, can eliminate smoke contamination and can with the matching used coal-fired combusting device of existing coal-burning boiler.

The purpose of this utility model realizes in the following manner.

A kind of coal-fired combusting device, fire grate by shell, burner hearth and lower furnace portion is formed, it is characterized in that, form between hearth wall and the shell and be respectively equipped with the outlet pipe mouth of pipe and the water inlet pipe mouth of pipe that connects respectively with the water inlet pipe and the return pipe of external boiler on water-cooling jacket, the water-cooling jacket, the top of burner is provided with the water seal explosion-protection equipment, the fire grate of bottom is a moving grate, the top, side of burner is provided with the bocca that is connected with external boiler furnace, the top, another side of shell is provided with and adds coal stove door, the bottom is provided with the scarfing cinder fire door, and the bottom of burner is provided with water seal ash slag bath.

The moving grate planar radial two ends of the said coal-fired combusting device of the utility model are provided with rotating shaft, wherein the rotating shaft of an end connects with the joystick of housing exterior, the both sides of fire grate rotating shaft are provided with stopping means, and the angle that stopping means swings up and down the fire grate left and right sides is limited in 0 °～45 ° scopes.

Because being provided with water seal ash slag bath, this coal-fired combusting device bottom can increase the sealing of burner hearth to strengthen the air blast effect, the fire grate that both sides swing up and down can make coal-fired loose to strengthen gas permeability and to be convenient to slagging-off in the burner, the water seal explosion-protection equipment at burner top can prevent that the burner internal pressure is excessive and cause danger, since the water inlet pipe mouth of pipe on the water-cooling jacket and the outlet pipe mouth of pipe respectively with boiler on outlet pipe be connected with return pipe, thereby the coal-fired a large amount of heat energy that produced in being converted into the fuel gas process can be fully used, the existing gas boiler of this coal-fired combusting device is simple in structure, low cost of manufacture, the incendivity colm, smoke medicining dust-removing effect is good, and can be supporting with existing coal-burning boiler, easy to utilize.

Below in conjunction with accompanying drawing the utility model is described further.

Fig. 1 is the structural representation of the utility model coal-fired combusting device.

Coal-fired combusting device is by shell 4, the fire grate 8 of burner hearth 6 and burner hearth 6 bottoms is formed, form water-cooling jacket 5 between hearth wall and the shell 4, the water inlet pipe mouth of pipe 7 on the water-cooling jacket 5 is connected with the return pipe of external boiler, the outlet pipe mouth of pipe 2 is connected with the water inlet pipe of boiler, the top of burner is provided with water seal explosion-protection equipment 1, the bottom of burner hearth 6 is provided with moving grate 8, the bocca 3 on top, burner side is connected with the burner hearth of external coal-burning boiler, the top of burner another side is provided with and adds coal stove door 13, the bottom is provided with scarfing cinder fire door 12, the bottom of burner is provided with water seal ash slag bath 11, the rotating shaft of moving grate 8 is fixedlyed connected with the joystick of hull outside 9, the rotating shaft both sides of fire grate 8 are provided with stopping means, the angle that stopping means swings up and down the fire grate rotating shaft left and right sides is limited in 0 °～45 ° scopes, and the air outlet of the air blast 10 of joystick 9 belows is positioned at the below of fire grate 8.

When the ignition combustion device, on fire grate 8, spread earlier dried firewood, cover the fire coal of suitable thickness on the dried firewood again, light firewood then and use air blast 10 to the air blast of the bottom of fire grate 8, when fire coal is covered naked light by the coal seam of continuing above the thickening after lighting, and continuation air blast, Shang Mian coal seam is produced a large amount of fuel gas by following fire coal heating like this, fuel gas is lighted the long roaring flame in back and will be sprayed in the burner hearth of coal-burning boiler from bocca 3 at bocca 3 places, prolongation along with the coal-fired combusting device working time, water in the water-cooling jacket 5 are heated and form closed circuit with water in the coal-burning boiler, can make full use of the heat in the water-cooling jacket 5 so on the one hand, can make simultaneously the inwall of burner hearth 6 keep proper temperature again, slag on fire grate 8 is too much or the coal seam is real-time excessively, can rock fire grate 8 by joystick 9 makes top coal-fired loose and lime-ash is fallen, adding coal stove door 13 should in time close after adding coal, when big slag can not can be opened scarfing cinder fire door 12 cleaning slags when fire grate 8 falls, when being full of ashes in the water seal ash slag bath 11 of burner bottom, should in time clear up, the water seal explosion-protection equipment 1 at burner top in order to the pressure in the burner hearth when excessive timely pressure release to guarantee safety.

Claims

1, a kind of coal-fired combusting device, by shell, the fire grate of burner hearth and lower furnace portion is formed, it is characterized in that, form water-cooling jacket between hearth wall and the shell, be respectively equipped with the outlet pipe mouth of pipe and the water inlet pipe mouth of pipe that connect respectively with the water inlet pipe and the return pipe of external boiler on the water-cooling jacket, the top of burner is provided with the water seal explosion-protection equipment, the fire grate of bottom is a moving grate, the top, side of burner is provided with the bocca that is connected with external boiler furnace, the top, another side of shell is provided with and adds coal stove door, the bottom is provided with the scarfing cinder fire door, and the bottom of burner is provided with water seal ash slag bath.

2, according to the said coal-fired combusting device of claim 1, it is characterized in that said moving grate planar radial two ends are provided with rotating shaft, wherein the rotating shaft of an end is connected with the joystick of housing exterior, the both sides of fire grate rotating shaft are provided with stopping means, and the angle that stopping means swings up and down the fire grate left and right sides is limited in 0 °～45 ° the scope.