CN2504549Y - Environmetnal protection boiler - Google Patents

Abstract

The utility model provides an environmental protection boiler, and a water jacket which can divide the upper part of the furnace body to a coal storage chamber and a heat exchange chamber in the furnace body, and a fire-resistant furnace lining which is arranged under the water jacket divides the lower part of the water jacket in to a combustion chamber and a reburning chamber, and the coals in the combustion chamber and the reburning chamber and combustible gas can burn further and completely, and an arch plate to retain ashes is arranged at the end of the water jacket, and a fire channel is formed between the fire-resistant furnace lining and the arch plate to retain ashes. The arch plate to retain ashes can lead the flowing ashes in hot flue gases to be hit to fall, and the utility model which has a good effect in eliminating smoke can effectively reduce the discharging thickness of soot.

Description

Environment-protection boiler

Technical field:

The utility model relates to a kind of small-sized civil heating coal-burning boiler.

Background technology:

At present, traditional boiler normally coal in the burner hearth internal combustion, the hot flue gas that burning the is produced heat-exchanging tube bundle of flowing through, after heat exchange, discharge body of heater, it exists the dust in the hot flue gas many, pollute the shortcoming of surrounding environment, Chinese patent CN2174637Y discloses a kind of continuous coal-fired normal-pressure boiler, it comprises body of heater, coal storage case, combustion chamber and air compartment, coal storage case and combustion chamber communicate, between combustion chamber and burner hearth, be connected, chimney arch is arranged in burner hearth, between chimney arch and the hearth wall quirk was arranged by vertical grate.The hot flue gas body that this structure can make burning produce passes through the chimney arch dedusting, but because chimney arch is arranged on a side in hot coal seam, very easily burnt out, and dust removing effects is poor.Flame directly passes through fire grate and enters the combustion chamber, owing to be close to red-hot coal, fire grate burns out easily, and the repair rate height has increased cost greatly.

Technology contents:

The purpose of this utility model provides a kind of good dedusting effect, and the high environment-protection boiler of efficiency of fire coal.

The utility model is achieved in that a kind of environment-protection boiler, comprise body of heater, coal storeroom, have Heat Room, combustion chamber, fire grate and the air compartment of heat-exchanger rig, it is characterized in that: in body of heater, be provided with a water leg, be positioned at the water leg below and be provided with refractory lining, refractory lining is divided into combustion chamber and burning chamber with the body of heater bottom, end at water leg is provided with the grey arch bar of retaining, forms quirk between refractory lining and the grey arch bar of retaining.

Described refractory lining can be right-angled trapezium, and refractory lining tilts to the adjacent end in combustion chamber.

On refractory lining, can be provided with air inlet.

Body of heater can be for square.

Described fire grate can be drum-type flute profile fire grate.

The utility model is owing to adopted said structure, combustion system is made up of combustion chamber and burning chamber's two parts, in the combustion chamber, after the bituminous coal heating, but the high temperature burning fume that is produced carries out second-time burning after entering burning chamber and oxygen mix, make most flue gas after-flames, boiler reaches the environment protecting of smokeless, few dirt when operation.End at water leg is provided with the grey arch bar of retaining, form quirk between refractory lining and the grey arch bar of retaining, keeping off grey arch bar can make the flying dust in the mobile hot flue gas fall because of bump, and because the grey arch bar of retaining is to be made by refractory concrete, during flue gas process quirk, under the heat radiation of the grey arch bar of retaining, can further burn.The thermal efficiency of boiler is improved, and can guarantee to eliminate smoke.And, can provide oxygen for the burning of volatilization gas owing on refractory lining, be provided with air inlet.

Description of drawings:

The structural representation of the utility model environment-protection boiler shown in Figure 1;

The side view of the refractory lining of the utility model environment-protection boiler shown in Figure 2.

The specific embodiment:

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

With reference to figure 1, the utility model environment-protection boiler comprises body of heater 1, fire grate 7 and air compartment 9, fire grate 7 belows are air compartment 9, in square furnace 1, be provided with the water leg 10 that upper of furnace body is divided into coal storeroom 3 and Heat Room 2, be positioned at water leg 10 belows and be provided with refractory lining 8, refractory lining 8 is divided into combustion chamber 5 and burning chamber 6 with body of heater 1 bottom, is provided with the grey arch bar 4 of retaining at the end of water leg 10, and refractory lining 8 forms quirk with keeping off between the grey arch bar 4.During environment-protection boiler work, after coal in the coal storeroom 3 catches fire, can heat the coal seam of its top, and make it that oxidation reaction take place, produce unburnt reducibility gas, in combustion chamber 5, the flue gas of the overwhelming majority burns under high temperature, sufficient conditions of air fully, high-temperature flue gas arrives burning chamber 6 through quirk, further completing combustion under the heat radiation of the grey arch bar 4 of retaining, the hot flue gas after the smoke elimination are walked around the grey arch bar 4 of retaining and are flowed to Heat Room 2, discharge body of heater 1 after the heat exchange, refractory lining 8 is a right-angled trapezium, and refractory lining 8 tilts to combustion chamber 5 adjacent ends.With reference to figure 2, on refractory lining 8, be provided with air inlet 11.Air inlet 11 can provide oxygen for hot smoke combustion, makes burning more abundant.

The utility model can make coal and fuel gas fully burn owing to be provided with retaining grey arch bar 4, refractory lining 8 and air inlet 11 in combustion chamber 5, its thermal efficiency is improved, and the dust in the flue gas can be removed, and smoke effect is good.The utility model is applicable to domestic boiler.

Claims (5)

1, a kind of environment-protection boiler, comprise body of heater, coal storeroom, have Heat Room, combustion chamber, fire grate and the air compartment of heat-exchanger rig, it is characterized in that: in body of heater, be provided with a water leg, be positioned at the water leg below and be provided with refractory lining, refractory lining is divided into combustion chamber and burning chamber with the body of heater bottom, end at water leg is provided with the grey arch bar of retaining, forms quirk between refractory lining and the grey arch bar of retaining.

2, environment-protection boiler according to claim 1 is characterized in that: described refractory lining is a right-angled trapezium, and refractory lining tilts to the adjacent end in combustion chamber.

3, environment-protection boiler according to claim 2 is characterized in that: be provided with air inlet on refractory lining.

4, according to claim 1,2 or 3 described environment-protection boilers, it is characterized in that: body of heater is square.

5, according to claim 1,2 or 3 described environment-protection boilers, it is characterized in that: described fire grate is a drum-type flute profile fire grate.

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