CN202221107U - Secondary combustion furnace with oxygen supply by hot blast - Google Patents

Abstract

The utility model discloses a hot air oxygen-supplied secondary combustion furnace, which can improve the utilization rate and heat conversion rate of coal and reduce the emission of flue gas. It includes a furnace body. The furnace body includes a furnace. There is an oxygen supply ring at the mouth of the furnace above the furnace. The oxygen supply ring is a ring structure with a cavity inside. 1-6 hot air pipes are arranged close to the furnace to penetrate the bottom of the furnace body. The hot air pipes are tubular structures with a cavity inside, and the oxygen supply ring is sealed and connected with the hot air pipes.

Description

Hot blast oxygen supply after-burning stove

Technical field

The utility model relates to combustion furnace, the stove and accessory that relates in particular to a kind of rural area warming, cooks and use.

Background technology

In the prior art, be the combustion stove of fuel with the coal, mainly be used for warming oneself, cooking in the rural area; Mainly be made up of body of heater, chassis, boiler face and ash bucket, coal is discharged mixed flue gas in body of heater flue internal combustion through chimney during use; Its shortcoming is, coal burning is insufficient, and the part fuel gas is discharged from chimney; Not only wasted the energy but also polluted environment, coal consumption is high, and the thermal efficiency is low.

The utility model content

The utility model technical problem to be solved provides a kind of hot blast oxygen supply after-burning stove, and it can improve the utilization rate and the thermal conversion rate of coal, reduces smoke discharge amount.

For solving the problems of the technologies described above, the technical scheme of the utility model is: a kind of hot blast oxygen supply after-burning stove, and it comprises body of heater; Body of heater comprises flue, and there is the oxygen supply circle at the fire door place on flue, and said oxygen supply circle has the loop configuration of cavity in being; This loop configuration inboard is uniformly distributed with the oxygen supply hole; Be provided with 1-6 root warm-air pipe at body of heater inner close fitting flue and penetrate bottom of furnace body, said warm-air pipe has the tubular structure of cavity in being, said oxygen supply circle is tightly connected with this warm-air pipe.

The beneficial effect of the utility model is, in body of heater, increased warm-air pipe, oxygen supply circle, formed secondary oxygen supply passage; Air gets into warm-air pipe by bottom of furnace body, because warm-air pipe is at body of heater inner close fitting flue, air is heated in warm-air pipe; And then get into the oxygen supply circle, and from the oxygen supply hole of oxygen supply circle inwall, spraying, hot-air fully contacts with coal burning flame, flue gas; The mixed flue gas that does not have completing combustion in the coal combustion process is carried out the oxygen supply second-time burning, reach abundant burning, make the interior temperature of stove improve 25% than conventional oven; Coal saving rate reaches 25%, and smoke discharge amount reduces 60%.

Description of drawings

Fig. 1 is the utility model structure chart, and Fig. 2 is the structure chart of warm-air pipe and oxygen supply circle.

Among the figure: the 1-boiler face 2-pot mouth 3-chimney socket 4-furnace crown bowl 5-flue collector 6-body of heater 7-inserts 8-flue 9-oxygen supply hole 10-oxygen supply circle 11-warm-air pipe 12-stove tooth 13-frame 14-shutter 15-furnace bottom 16-ash bucket 17-stove pin that prevents dust

The specific embodiment

Like Fig. 1, shown in Figure 2, the utility model comprises body of heater 6, and body of heater 6 innermost layers are flue 8; There is oxygen supply circle 9 at the fire door place on flue 8, and this oxygen supply circle 9 has the loop configuration of cavity in being, this loop configuration inboard is uniformly distributed with several oxygen supply holes 10; Be provided with 1 warm-air pipe 11 at body of heater 6 inner close fitting flues 8 places and penetrate body of heater 6 bottoms, said warm-air pipe 11 has the tubular structure of cavity in being, said oxygen supply circle 9 is tightly connected with this warm-air pipe 11; Said two cavitys are interconnected, and body of heater 6 following air get into from warm-air pipe 11 bottoms, and the warm-air pipe 11 of flowing through gets into the oxygen supply circles; From oxygen supply hole 10, flow out at last, constitute complete secondary oxygen supply passage.

Air gets into warm-air pipe 11 below body of heater 6; Because warm-air pipe 11 is at body of heater 6 inner close fitting flues 8, air is heated in warm-air pipe 11, and then gets into oxygen supply circle 9; Ejection from the oxygen supply hole 10 of oxygen supply circle 9 inwalls; Hot-air fully contacts with coal burning flame, flue gas, and the mixed flue gas that does not have completing combustion in the coal combustion process is carried out the oxygen supply second-time burning, reaches clean-burning purpose.

Claims (1)

1. A hot blast oxygen supply secondary combustion furnace, it comprises a body of furnace, the body of furnace comprises a furnace, it is characterized in that, an oxygen supply ring is arranged at the furnace mouth above the furnace furnace, and the oxygen supply ring is a cavity in the interior Ring structure, the inner side of the ring structure is evenly distributed with oxygen supply holes, and 1-6 hot air pipes are arranged in the furnace body close to the furnace to penetrate the bottom of the furnace body. The hot air pipes are tubular structures with a cavity inside. The oxygen supply ring and the hot air pipe are hermetically connected.

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