CN2903710Y - Vertical bulk coal upper air intake burning boiler - Google Patents

Abstract

The utility model discloses a vertical coal diffusing upper air intake combustion furnace including a smoke stack base, a fire tube, a fire box, hydro-cooling fire grate, a blast chamber, an outboard blast chamber, a moving grate and a chassis, and is characterized in that an air-duct is provided inside the fire box. The utility model employs the upper air intake counter heating method, thereby the utility model features in compact structure, small size, low height, little space, large heating area, fast heating speed, low smoke discharging temperature, high calorific efficiency, sufficient output, safety, long service life, environmental protection, and energy conservation.

Description

Air intake burning boiler on the vertical diffusing coal

Affiliated technical field:

The utility model belongs to boiler plant, and specifically, what it related to is air intake burning boiler on a kind of vertical diffusing coal.

Background technology:

At present, traditional back firing boiler adopts when burning and opens fire door, and natural air inlet is because the fire door size is limited, so that cause the intake deficiency, cause ignition temperature low, boiler output is not enough and burn insufficient, volume of smoke is discharged in the air, and contaminated environment wastes energy.

Summary of the invention:

The purpose of this utility model is at the problems referred to above, provides a kind of programming rate fast, and exhaust gas temperature is low, thermal efficiency height, the foot of exerting oneself, air intake burning boiler on the vertical diffusing coal of energy-conserving and environment-protective.

For this purpose, the utility model adopts following technical scheme: air intake burning boiler on the vertical diffusing coal of being made up of chimney base [1], smoke pipe [2], burner hearth [3], water-cooled grate [4], combustion chamber [5], outer side combusion chamber [6], moving grate [7], base [8] is characterized in that being provided with in the burner hearth [3] airduct [9].

The utility model has compact conformation owing to adopted last air intake backfire, and boiler volume is little, and is highly low, and it is little to take up room, heating surface area is big, and programming rate is fast, and exhaust gas temperature is low, thermal efficiency height, the foot of exerting oneself, security performance is good, long service life, characteristics such as energy-conserving and environment-protective.

Description of drawings:

Fig. 1 is the utility model overall structure schematic diagram.

Among the figure: 1. chimney base, 2. smoke pipe, 3. burner hearth, 4. water-cooled grate, 5. combustion chamber, 6. outer side combusion chamber, 7. moving grate, 8. base, 9. airduct.

The specific embodiment:

Moving grate [7] seat is on base [8], water-cooled grate [4] is separated into burner hearth [3] and combustion chamber [5] with flue, side, combustion chamber [5] has elliptical aperture, and be communicated with outer side combusion chamber [6], in the outer upper end of body of heater chimney base [1] is set, be provided with some smoke pipes [2] in the chimney base [1], an airduct [9] is set in the burner hearth [3], an airduct [9] can be installed in the top of burner hearth [3], also can be installed in the side of burner hearth [3], what give at an igniting initial stage airduct [9] is wind, also can give vapour or vapour at an airduct [9] when running to boiler and steaming, the wind mixture.

During operation, add airduct one time on the burner hearth coal seam, adopt to add the wind firing method of closing the door, make and coal-firedly burn under the situation of air quantity surplus, flame temperature can reach more than 1200 ℃.Add rotary secondary wind simultaneously in the combustion chamber, flame is rotated in burner hearth, can reduce dust concentration like this, cooperate boiler, guarantee that boiler burn, flame is long, temperature is high under the situation of burning " former diffusing coal ", programming rate is faster than plain cylindrical furnace 3-4 times from the gravitational settling structure of establishing.Solid and gas imperfect combustion are dropped to minimum, coal saving rate is high more than 20% than conventional boiler.Adopt the diffusing coal of low price to do fuel again, reduce the coal consumption cost more than 30%.Because of the environmental protection index that burns, thermal efficiency height, dust concentration and blackness of exhaustion are lower than national regulation fully.

Claims (1)

1, air intake burning boiler on a kind of vertical diffusing coal of being made up of chimney base [1], smoke pipe [2], burner hearth [3], water-cooled grate [4], combustion chamber [5], outer side combusion chamber [6], moving grate [7], base [8] is characterized in that being provided with in the burner hearth [3] airduct [9].