CN2663810Y - Environment-friendly type coal-fired furnace - Google Patents

Abstract

An environment-friendly type coal-fired furnace is used to overcome the insufficient combustion and overproof of waste gas discharge of the prior coal-fired furnace, which comprises a furnace body, a hearth, a furnace row, a coal feeding opening, an ash discharge opening and a smoke discharge apparatus. The utility model is characterized in that a combustion chamber is arranged in the furnace body on one side of the hearth to communicate with the hearth. The furnace row and a lighting door are arranged under the combustion chamber. An ash storage chamber is arranged beneath the furnace row. A coal storage hopper is arranged above the combustion chamber to communicate with the combustion chamber. An air discharge pipe is arranged in the hearth to assist combustion. The coal is first combusted in the combustion chamber and generates dry coal gas, furthermore, the dry coal gas enters the heart for complete combustion, thereby completely combusting the coal. The waste discharge reaches a class of standard. The carbon content of the cinder is lower, therefore, the coal saving effect is obvious. The utility model can be widely used in fields of coal-fired boiler and train coal-fired boiling water furnace.

Description

The environment-friendly type coal furnace

(1) technical field: the utility model relates to coal furnace, specifically belongs to environmental protection and coal-saving coal furnace.

(2) background technology: coal furnace of the prior art comprises body of heater, install each major part of burner hearth, fire grate, coal filling hole, ash hole and fume extractor on the body of heater, fire coal burns in burner hearth, supply with the burning required air or install air blast increasing amount of supplied air additional by fire grate, its common shortcoming is that burning is insufficient: give off black smoke from chimney, do not reach discharge standard, atmosphere pollution; Secondly, cinder of burned coal phosphorus content height wastes energy.

(3) summary of the invention: the purpose of this utility model is to design a kind of coal that can make and fully burns, thereby reaches the coal furnace of emission request, and has effect of coal saving.

The novel technical scheme of this reality is as follows: it comprises body of heater, at body of heater burner hearth, fire grate, coal filling hole, ash hole and fume extractor are set, burner hearth is connected with the air inducing fume extractor by hot air duct, it is characterized in that the combustion chamber that communicates with burner hearth being set in body of heater in burner hearth one side, below the combustion chamber, install fire grate and lighting door respectively, the fire grate below is provided with ash storage chamber, the coal-storing hopper that device communicates with it above the combustion chamber, and the port of coal-storing hopper is a coal filling hole; The discharge pipe of device combustion air at body of heater lateral means combustion air blast pipe, is connected with said combustion air discharge pipe in burner hearth.It is further characterized in that described combustion air discharge pipe is a ring pipe, has air outlet on the ring pipe.

In the utility model when work,, a pot body is installed in body of heater and the sealing of burner hearth top, burner hearth top sequence unit seal closure, is installed on hot air duct and air inducing smoke exhaust pipe in pot body.The coal-fired coal-storing hopper that adds, fire coal enters the combustion chamber, ignition, air enters from the fire grate under the combustion chamber, and fire coal through heating flame (smouldering), generates dry gas in the combustion chamber, under the air inducing effect of air inducing smoke exhaust pipe, dry gas enters burner hearth, and the combustion air that comes out with the secondary discharge pipe mixes, completing combustion in burner hearth, the useless flue dust of burning enters atmosphere through smoke exhaust pipe, detect through environmental administration, smoke discharge amount reaches class area environmental emission standard, has eliminated black smoke discharging phenomenon fully.Fall into the coal ash slag of ash storage chamber through fire grate from the combustion chamber, phosphorus content is below 1% after testing, and effect of coal saving is also very remarkable.Because the coal-storing hopper coal storage is big, behind the coal, can connect burning more than 4 hours, and the coal-storing hopper capacity is big, can make the coal furnace fire-sealing time long, banks up a fire continuously 24 hours, the burning of can at once opening fire, therefore, the utility model maintenance management is also very convenient.

(4) description of drawings:

Fig. 1 is a front view of the present utility model;

Fig. 2 looks cutaway view for a left side of the present utility model;

Fig. 3 is a vertical view of the present utility model;

Fig. 4 is embodiment 1 figure of the present utility model;

Fig. 5 is embodiment 2 figure of the present utility model.

(5) specific embodiment: see Fig. 1, Fig. 2, the utility model comprises body of heater 3, burner hearth 10 is set in body of heater 3, burner hearth 10 is connected with the air inducing smoke discharging pipe by hot air duct, side at burner hearth 10 is provided with the combustion chamber 4 that communicates with burner hearth 10 in body of heater 3, device ventilating grate 6 and lighting door 5 are opened lighting door 5 below combustion chamber 4, can put into igniting characteristics coal furnace.Ash storage chamber 7 is set below fire grate 6, the coal-storing hopper 2 that device communicates with combustion chamber 4 above combustion chamber 4, the port of coal-storing hopper is a coal filling hole 1.The discharge pipe 9 of device combustion air in burner hearth 10, at the air inlet 8 of the lateral means combustion air of body of heater 3, the blast pipe that is connected with air inlet 8 communicates with discharge pipe 9, and blast pipe and discharge pipe are all inserted among the body of heater.Fig. 3 illustrates the vertical view of fire grate 6, and do not add coal in the coal-storing hopper this moment.Be also shown in from Fig. 3, the utility model has a plurality of air inlets 8, and to strengthen combustion-supporting effect, blast pipe is annular in body of heater, and a plurality of discharge pipes 9 are arranged on it.

See Fig. 4, be applied to the embodiment of the boiling water coal stove on the train for the utility model.1 to 10 is identical with Fig. 1 to Fig. 3 marker among the figure, and 11 is the hot blast chamber.12 for adding the heat-exchange tube of hot water, and 13 is water inlet pipe, and it is a coil arrangement, and 14 is the pot body, and 15 is ventilation mouth, and 16 is the air inducing smoke exhaust pipe.During boiler work, coal-fired from coal filling hole 1 adding coal-storing hopper 2 and combustion chamber 4.Coal-fired 4 smoulder in the combustion chamber, generate dry gas, under the effect of air inducing smoke exhaust pipe 16, dry gas enters burner hearth 10 (claiming burning chamber again) burning, and combustion air enters burner hearth through air inlet 8, discharge pipe 9, and this moment, fire coal reached completing combustion.Not having black smoke fully discharges from smoke exhaust pipe 16.Heat enters hot blast chamber 11 and heat-exchange tube 12, and water is boiled, and this stove can use the above any coal of 5500 kilocalorie/kilograms.Fig. 5 is applied to the embodiment of coal-burning boiler for the utility model, and 18 is boiler among the figure, and 19 is the air inducing exhaust opening, is connected with the air inducing smoke exhaust pipe.

Claims (2)

1, environment-friendly type coal furnace, it comprises body of heater, at body of heater burner hearth, fire grate, coal filling hole, ash hole and fume extractor are set, burner hearth is connected with the air inducing fume extractor by hot air duct, it is characterized in that in burner hearth one side the combustion chamber that communicates with burner hearth being set in body of heater, install fire grate and lighting door respectively below the combustion chamber, the fire grate below is provided with ash storage chamber, the coal-storing hopper that device communicates with it above the combustion chamber, the port of coal-storing hopper is a coal filling hole; The discharge pipe of device combustion air at body of heater lateral means combustion air blast pipe, is connected with said combustion air discharge pipe in burner hearth.

2, by the described environment-friendly type coal furnace of claim 1, it is characterized in that described combustion air discharge pipe is a ring pipe, have air outlet on the ring pipe.

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