CN2274721Y

CN2274721Y - Hot air furnace

Info

Publication number: CN2274721Y
Application number: CN 96242443
Authority: CN
Inventors: 朴哲洙
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-10-25
Filing date: 1996-10-25
Publication date: 1998-02-18
Anticipated expiration: 2006-10-25

Abstract

The utility model provides a hot air furnace, belonging to the technical field of a boiler. The hot air furnace comprises a double-wall furnace body, a slag elimination chamber, a hearth, a smoke gas chamber, a smoke exhaustion pipeline, a hot air exhaustion pipeline and an air feeding device, characterized in that a secondary burning chamber structure is also arranged between the hearth of the furnace body and the smoke gas chamber, and the secondary burning chamber is respectively communicated with the hearth and the smoke respectively via a lower smoke exhaustion pipe and an upper smoke exhaustion pipe. The air feeding device is also provided with an air delivery main pipe, the lower and upper ends of the air delivery main pipe are respectively connected with a slag discharge chamber and the smoke gas chamber, respectively connected with the smoke gas chamber and the secondary burning chamber via an upper air inlet pipe and a lower air inlet pipe. The opening of the smoke exhaustion pipeline is provided with a smoke exhaustion strobe.

Description

Hot-blast stove

The hot-blast stove that the utility model relates to belongs to the boiler technology field of the usefulness of heating, heat supply, oven dry etc.

So-called hot-blast stove is to enter cold wind heating in the stove, becomes hot blast and discharges.The ubiquitous problem of existing hot-blast stove has: the stove fuel combustion is incomplete, and the part heat has lost along with smoke evacuation, and the stove smoke evacuation dirt that has is not thorough, flue easily takes place stop up, and causes the thermal efficiency to reduce.Address the above problem.Usually the practice is to strengthen shaft and double-deck smoke discharging pipe, makes cold wind prolong in stove that heat continues to be absorbed by the double-deck cold wind of flue in heat time heating time and the flue gas, and this kind practice will bring body of heater oversize, metal material consumption and energy consumption increase.

The utility model purpose is at the problems referred to above existing hot-blast stove to be improved design, and a kind of novel hot-blast stove is provided, and makes every effort to make full combustion of fuel in the stove, reclaims fume afterheat, thereby improves the thermal efficiency of stove.

The technical scheme that achieves the above object and adopt: this hot-blast stove, comprise double-walled body of heater with air channel interlayer, bottom of furnace body is formed with deslagging chamber and as the burner hearth of primary zone, upper of furnace body is formed with smoke chamber, the smoke discharging pipe that is communicated with smoke chamber and be sleeved on the smoke discharging pipe outside and thermal wind exhausting pipeline that be communicated with double-walled body of heater air channel, have by what air-supply passage was communicated with body of heater and give wind apparatus, it is characterized in that: also have the secondary combustion chamber structure between burner hearth of this body of heater and the smoke chamber, secondary combustion chamber is communicated with burner hearth by the down smoke-discharging pipe, is communicated with smoke chamber by last smoke exhaust pipe; This also includes the blast main to wind apparatus, the blast main lower end is in valve is connected in deslagging chamber, its upper end through valve be connected with place in the smoke chamber and with the air blast beak of the coaxial setting of the smoke discharging pipe mouth of pipe, the blast main stage casing also has the blast pipe of establishing valve in two, wherein upper blast pipe is communicated with smoke chamber, lower blast pipe is communicated with secondary combustion chamber, and said smoke discharging pipe mouth of pipe place also is provided with the smoke evacuation gate.

The utility model advantage is: the setting of logical secondary combustion chamber makes in the burner hearth unburnt fuel and coal gas carry out secondary fully to burn and can utilize fuel thermal energy to greatest extent; Smoke chamber is built-in with air blast beak and forms low pressure source and can guarantee full combustion of fuel, and the output maximum heat guarantees that simultaneously flue gas can discharge smoothly; This air-supply arrangement only can be finished combustion-supporting air blast, heat air delivery, smoke evacuation, a plurality of processes of dust discharge with an air blast, and makes the hot-blast stove simple structure, and is easy to operate; Smoke discharging pipe adopts curved configuration, can prolong to reclaim the flue gas heat time; Can change in the body of heater flow of flue gas direction by the smoke evacuation gate and realize secondary dust discharge in the body of heater, add upper furnace body and efflux bottom, smoke pipe road and be provided with dust collection chamber's totally three dust discharges, can thoroughly solve the flue blockage problem.

Fig. 1 is the organigram of the utility model hot-blast stove.

The embodiment that provides below in conjunction with accompanying drawing further describes.Referring to accompanying drawing, this hot-blast stove comprises the double-walled body of heater (1) with air channel interlayer, body of heater (1) bottom is formed with deslagging chamber (2), it above the deslagging chamber (2) burner hearth (3) as the combustion chamber first time, upper of furnace body is formed with smoke chamber (4), crooked smoke discharging pipe (5) that is communicated with smoke chamber and the crooked thermal wind exhausting pipeline (6) that is sleeved on the smoke discharging pipe outside and is communicated with body of heater (1) air channel interlayer, this stove structure main feature one is that this body of heater (1) also has the secondary combustion chamber (9) that is formed by burner hearth item plate (7) and dividing plate (8) and body of heater (1) between burner hearth (3) and smoke chamber (4), this secondary combustion chamber (9) is communicated with burner hearth (3) by down smoke-discharging pipe (10), is communicated with smoke chamber (4) by last smoke exhaust pipe (11); Characteristics two are to wind apparatus, should be to wind apparatus except air blast (12), outside the air-supply passage (13), also has a blast main (14), blast main (14) lower end is used for combustion-supporting air blast in valve (15) is connected in deslagging chamber (2), blast main (14) upper end through valve (16) be connected with place in the smoke chamber (4) and with the air blast beak (18) of the coaxial setting in smoke exhaust pipe road junction (17), blast main (14) stage casing also has the blast pipe of establishing valve in two, wherein upper blast pipe (19) is communicated with smoke chamber (4) through valve (20), lower blast pipe (21) is communicated with secondary combustion chamber (9) through valve (22), and the smoke discharging pipe mouth of pipe (17) locates also to be provided with smoke evacuation gate (23).Body of heater (1) outside sweep smoke discharging pipe (5) bottom is provided with dust storage chamber (24).

The course of work of this hot-blast stove is: fuel promptly burns in first combustion chamber at burner hearth (3), flue gas is in down smoke-discharging pipe (10) enters second combustion chamber (9), enter second combustion chamber (9) by the wind that air blast (12) produces through lower blast pipe (21) this moment, make that unburnt fuel and coal gas carry out entering smoke chamber (4) through last smoke exhaust pipe (11) again after the burning second time in the two indoor plumes, air blast this moment (12) is sent high wind here and is sprayed from air blast beak (18), because of producing low pressure (according to the low principle of the fast pressure of the flow velocity of air-flow) between the air blast beak (18) and the crooked smoke discharging pipe mouth of pipe (17), just the flue gas in the smoke chamber (4) is continuously sucked in the crooked smoke discharging pipe (5) and make the stove operate as normal.Anti-blocking dust discharge process in this hot-blast stove stove; Because of plume when burner hearth (3) flows from bottom to top; big soot dust granule is deposited in combustion chamber (9) and the bottom of smoke chamber (4) second time greatly because of quality in the plume; during dust discharge; stove is ceased fire; shut the smoke evacuation gate (23) that the crooked smoke discharging pipe mouth of pipe (17) is located; open air intake valve (20), (22); the high velocity air that air blast (12) is produced; in upper and lower blast pipe (19), (21) enter smoke chamber (4) and second combustion chamber (9), make dust through last smoke exhaust pipe (11), down smoke-discharging pipe (10), get back to deslagging chamber (2) through burner hearth (3) again.The outer dust discharge of stove is: when cigarette entered crooked smoke discharging pipe (5), flue gas stream changed the direction of motion with pipeline, and the particle that quality is big in the flue gas hangs, and directly fell into dust storage chamber in (24).Heat production wind process is: air blast (12) generation wind in burner hearth (3) locates to enter the double-walled body of heater (1) with air channel interlayer, outwards provides hot blast by crooked hot air duct (6) through air-supply passage (13) again after the furnace temperature heating.

Claims

1, a kind of hot-blast stove, comprise that double-walled body of heater, bottom of furnace body with air channel interlayer are formed with deslagging chamber and as the burner hearth of primary zone, upper of furnace body is formed with smoke chamber, smoke discharging pipe that is communicated with smoke chamber and the thermal wind exhausting pipeline that is sleeved on the smoke discharging pipe outside and is communicated with double-walled body of heater air channel, have by what air-supply passage was communicated with body of heater and give wind apparatus, it is characterized in that: also have the secondary combustion chamber structure between burner hearth of this body of heater and the smoke chamber, secondary combustion chamber is communicated with burner hearth, is communicated with smoke chamber by last smoke exhaust pipe by the down smoke-discharging pipe; This also includes blast main, blast main lower end in valve is connected in deslagging chamber to wind apparatus, its upper end through valve be connected with place in the smoke chamber and with the air blast beak of the coaxial setting of the smokejack mouth of pipe, the blast main stage casing also has the blast pipe of establishing valve in two, wherein upper blast pipe is communicated with smoke chamber, lower blast pipe is communicated with secondary combustion chamber, and said smoke discharging pipe mouth of pipe place also is provided with the smoke evacuation gate.

2, hot-blast stove according to claim 1 is characterized in that: said smoke discharging pipe and thermal wind exhausting pipeline can be made curved shape.

3, according to the described hot-blast stove of claim 2, it is characterized in that: also can be provided with dust collection chamber on the said crooked smoke discharging pipe.