CN2636152Y

CN2636152Y - Hot-blast stove

Info

Publication number: CN2636152Y
Application number: CN 03273286
Authority: CN
Inventors: 梁汉华
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-12
Filing date: 2003-08-12
Publication date: 2004-08-25
Anticipated expiration: 2013-08-12

Abstract

A hot blast stove is provided, which comprises a stove body 1 and a smoke exhaust pipe 2. The stove body is internally positioned with a hearth 11 and the smoke exhaust pipe 2 is fixedly arranged at top of the stove body 1 and is communicated with the hearth 11; an air inlet 21 is arranged on the smoke exhaust pipe 2 which is configured as bending shape; an air inlet 22 is also positioned on the smoke exhaust pipe 2 which is then shaped as II; periphery of the smoke exhaust pipe 2 is coated with a protection layer 3. The utility model enhances the heat energy utilizing rate, thus saving large amount of fuel, avoiding the emitting of smoke and lowering the cost as well as facilitating the transportation and installation at the same time.

Description

A kind of hot-blast stove

Technical field

The utility model relates to the drying plant field, relates to the hot-blast stove field in particular.

Background technology

At present, hot-blast stove comprises body of heater and smoke exhaust pipe, be equiped with burner hearth in the body of heater, smoke exhaust pipe is fixedly mounted on the top of body of heater, on smoke exhaust pipe, be provided with air inlet, smoke exhaust pipe belongs to the straight tube of impact tube form, fly ash combustible material in the burner hearth and imflammable gas are under the smoke exhaust pipe draft effect of impact tube form, make that their time of staying in burner hearth are shorter, part fly ash combustible material and imflammable gas also have little time the burned burner hearth that just is discharged from fully in burner hearth, emerge from exhaust opening, formed the phenomenon of over-emitting black exhaust, flue-gas temperature at the exhaust opening place has reached about 530 ° simultaneously, has caused the loss of a large amount of heat energy, has also wasted a large amount of fuel.Discharge burner hearth again for fly ash combustible material and imflammable gas can be burnt fully in burner hearth, the volume of hot-blast stove can only be increased increasing, so just increased the manufacturing cost of hot-blast stove, brought inconvenience for simultaneously transportation and installation.

The utility model content

Technical problem to be solved in the utility model is: at present hot-blast stove heat energy loss and manufacturing cost height, give the deficiency that transportation and installation make troubles simultaneously and a kind of hot-blast stove is provided.

Technology solution of the present utility model is as follows:

A kind of hot-blast stove comprises body of heater 1 and smoke exhaust pipe 2, is installed with burner hearth 11 in the body of heater 1, smoke exhaust pipe 2 is fixedly mounted on the top of body of heater 1 and communicates with burner hearth 11, be provided with air inlet 21 on smoke exhaust pipe 2, smoke exhaust pipe 2 is bending, also has additional air inlet 22 on smoke exhaust pipe 2.

Described smoke exhaust pipe 2 is " Π " shape.

Described periphery at smoke exhaust pipe 2 can also be enclosed with protective layer 3.

Outstanding effect of the present utility model is: 1), make the smoke exhaust pipe of original impact tube form into forniciform " Π " shape, the length of the smoke exhaust pipe that extended has increased flue gas flow, thereby has prolonged the burning time of fly ash combustible material and imflammable gas; 2), on smoke exhaust pipe, set up air inlet again, making cold air wash away the heating surface flow process increases, the heat energy utilization rate improves; 3), since fly ash combustible material and imflammable gas in smoke exhaust pipe, can be burnt fully, thereby effectively reduced the smoke evacuation dust concentration, avoided the phenomenon of over-emitting black exhaust; 4), the hot-blast stove thermal efficiency improves, and saved a large amount of fuel; 5), be enclosed with protective layer, can avoid the heat energy in the smoke exhaust pipe outwards to spread through the smoke evacuation tube wall in the periphery of smoke exhaust pipe; 6), only need the smoke exhaust pipe of hot-blast stove is transformed, and needn't the heating performance of hot-blast stove and the thermal efficiency all can be improved by increasing the volume of hot-blast stove, not only reduced manufacturing cost, the while also be convenient to transportation and installs.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model.

The specific embodiment

A kind of hot-blast stove comprises body of heater 1 and smoke exhaust pipe 2, is equiped with burner hearth 11 in the body of heater 1, smoke exhaust pipe 2 is fixedly mounted on the top of body of heater 1 and communicates with burner hearth 11, be provided with air inlet 21 on smoke exhaust pipe 2, smoke exhaust pipe 2 is bending, also has additional air inlet 22 on smoke exhaust pipe 2.Described smoke exhaust pipe 2 is " Π " shape.Described periphery at smoke exhaust pipe 2 can also be enclosed with protective layer 3.

Make the smoke exhaust pipe 2 of original impact tube form into forniciform " Π " shape, the length of the smoke exhaust pipe 2 that extended has increased flue gas flow, thereby can prolong the burning time of fly ash combustible material and imflammable gas; Set up air inlet 22 on smoke exhaust pipe 2 again, making cold air wash away the heating surface flow process increases, and the heat energy utilization rate improves; Because fly ash combustible material and imflammable gas can be burnt in smoke exhaust pipe 2 fully, thereby have effectively reduced the smoke evacuation dust concentration, have avoided the phenomenon of over-emitting black exhaust; The hot-blast stove thermal efficiency improves, and has saved a large amount of fuel; Be enclosed with protective layer 3 in the periphery of smoke exhaust pipe 2, can avoid the heat energy in the smoke exhaust pipe 2 outwards to spread through the smoke evacuation tube wall; Only need the smoke exhaust pipe 2 of hot-blast stove is transformed, and needn't the heating performance of hot-blast stove and the thermal efficiency all are improved by increasing the volume of hot-blast stove, reduced manufacturing cost, the while also be convenient to transportation and installs.

Operation principle: earlier combustibles such as wood chip set fire door 12 from the body of heater 1 is packed into and ignite, shut stove face plate 13 and pinning then, after treating the temperature rise of body of heater 1, with air blast set two air inlets 21,22 from the body of heater 1 cold air is pressed in body of heater 1 and the smoke exhaust pipe 2 again, cold air is discharged from two air outlets 23,14 fully carry out heat exchange with hot-air in body of heater 1 and smoke exhaust pipe 2 after, and supplying with needs the material that dry.

Claims

1, a kind of hot-blast stove, comprise body of heater (1) and smoke exhaust pipe (2), be equiped with burner hearth (11) in the body of heater (1), smoke exhaust pipe (2) is fixedly mounted on the top of body of heater (1) and communicates with burner hearth (11), on smoke exhaust pipe (2), be provided with air inlet (21), it is characterized in that: smoke exhaust pipe (2) is bending, also has additional air inlet (22) on smoke exhaust pipe (2).

2, a kind of hot-blast stove according to claim 1 is characterized in that: smoke exhaust pipe (2) is " ∏ " shape.

3, a kind of hot-blast stove according to claim 1 is characterized in that: can also be enclosed with protective layer (3) in the periphery of smoke exhaust pipe (2).