CN211424693U - Hot-blast stove - Google Patents

Abstract

The utility model relates to a hot blast stove, the power distribution box comprises a box body, be provided with the hot-blast main in the box, the one end of hot-blast main is connected with out the tuber pipe, install the combustion chamber in the hot-blast main, the one end that the tuber pipe was kept away from to the combustion chamber has been seted up the air inlet, air inlet department is connected with the combustor, the air inlet department is kept away from to the combustion chamber is provided with the blast pipe, the blast pipe is linked together with the combustion chamber, a plurality of exhaust holes have been seted up to the side wall all around of blast pipe, it is equipped with a plurality of dispersion pipes to insert in the combustion chamber, the combustion chamber is worn out respectively and is extended to the interior the setting of hot-blast main at the both ends of dispersion pipe, a plurality of inlet ports have been seted up. The utility model discloses have the even, abundant effect of heating.

Description

Hot-blast stove

Technical Field

The utility model belongs to the technical field of hot-blast apparatus's technique and specifically relates to a hot-blast furnace is related to.

Background

The hot blast stove is a thermodynamic machine, is widely applied in China in the end of the 20 th century 70 s, and becomes an upgrading product of an electric heat source and a traditional steam power heat source in many industries. The hot blast stove has various types and complete series, and is divided into a hand-burning furnace and a machine-burning furnace by a coal feeding mode, and is divided into a coal furnace, an oil furnace, a gas furnace and the like by fuel types.

The Chinese utility model patent document with the application number of CN201721597474.4 discloses a full-automatic direct-fired fuel hot-blast stove, which comprises a stove body, a cooling air inlet, a hot air outlet, a stove body supporting seat, a burner and a combustion chamber, wherein the left end of the stove body is provided with a burner port, the outer side of the burner port is hermetically connected with the burner, the inner side of the burner port is hermetically connected with the combustion chamber, the combustion chamber is positioned inside the stove body, the outer wall of the combustion chamber is provided with a radiating fin, the combustion chamber consists of multi-stage heat-resistant steel cylinders which are hermetically connected through a connecting ring, the outer side of the radiating fin is provided with a cooling air channel, the left end of the cooling air channel is connected with the inner side of the left wall of the stove body through a connecting rod, the outer side of the right end port of the combustion chamber is provided with a wind baffle which is fixedly connected on the outer, the furnace body right-hand member top still is equipped with the cooling air import, and the cooling air import lower extreme runs through the furnace body outer wall, and stretches into to the cooling air passageway in, cooling air import one side still is equipped with the air-blower, and air-blower fixed connection still is equipped with a plurality of furnace body supporting seats in the furnace body top, the furnace body below for fixed whole hot-blast furnace.

In the patent documents, the combustion chamber formed by the multistage heat-resistant steel cylinder is arranged, and a large number of radiating fins are welded on the outer side of the heat-resistant steel cylinder, so that the phenomenon that the refractory material is stripped or cracked is avoided. However, in the actual use of this hot blast stove, the flow rate of the flame and the hot air blown from the burner is very high, and the time for heating the cooling air is short, so that the hot air is heated unevenly and insufficiently. Therefore, a new solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects existing in the prior art, the utility model aims at providing a hot blast stove.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a hot blast stove, includes the box, be provided with the hot-blast main in the box, the one end of hot-blast main is connected with out the tuber pipe, install the combustion chamber in the hot-blast main, the one end that the tuber pipe was kept away from to the combustion chamber has been seted up the air inlet, air inlet department is connected with the combustor, the air inlet department is kept away from to the combustion chamber is provided with the blast pipe, the blast pipe is linked together with the combustion chamber, a plurality of exhaust holes have been seted up to the week lateral wall of blast pipe, it is equipped with a plurality of dispersion pipes to insert in the combustion chamber, the both ends of dispersion pipe are worn out the combustion chamber respectively and are extended the hot-blast main and set up, a plurality of inlet ports have been seted up towards the direction of air inlet.

By adopting the technical scheme, the hot-blast stove generates flame by burning fuel in the burner in the working process, and the burner sprays the flame at the air inlet, so that hot gas is generated in the combustion chamber, and the flame and the hot gas sprayed into the combustion chamber heat the combustion chamber. During the moving process of hot gas, part of the hot gas is sprayed on the dispersion pipe, enters the gas inlet on the dispersion pipe, is discharged into the hot air pipe through the inner cavity of the dispersion pipe, and the hot gas which does not enter the gas inlet is sprayed to the exhaust pipe and is discharged into the hot air pipe through the exhaust hole on the exhaust pipe; the fan blows air into the hot air pipe through the air inlet while the hot air is sprayed out of the combustion engine, the hot air sprayed out of the combustion engine heats the air blown out of the fan, and finally the heated hot air is discharged through the air outlet pipe. The dispersion pipe discharges part of hot air into the hot air pipe through the air inlet hole, so that the hot air is more uniformly distributed in the hot air pipe, and the hot air is prevented from being completely discharged from the exhaust hole, so that the hot air is accumulated at the connecting part of the air outlet pipe and the hot air pipe, the hot air is favorable for heating the air discharged by the fan, and the air in the hot air pipe is more uniformly heated; the dispersion pipe destroys the advancing track of hot gas, and the hot gas that makes spout into in the combustion chamber shunts, has slowed down the speed that hot gas was marchd in the combustion chamber, makes the combustion chamber be close to the partial abundant heating of air inlet, and then makes the heat distribution in the combustion chamber more even, more abundant to the wind heating effect of blowing in of fan.

The present invention may be further configured in a preferred embodiment as: and the fan is provided with an air supply outlet communicated with the air outlet of the fan.

Through adopting above-mentioned technical scheme, the hot-blast furnace is with hot-blast discharge back, because hot-blast velocity of flow is very fast, common firing equipment can not fully absorb hot-blast, if can not absorptive hot-blast direct discharge, then can cause the waste of the energy and the pollution of air. The air inlet is formed in the fan, unabsorbed hot air is discharged into the fan through the air inlet by the air pipe, then is discharged into the hot air pipe by the fan, and finally is discharged from the air outlet pipe after being reheated. The air supply outlet is matched with the fan and the hot blast stove, so that hot air recycling is realized, pollution to air caused by hot air is reduced, energy waste is reduced, meanwhile, the hot air conveying efficiency is improved, and further the working efficiency is improved.

The present invention may be further configured in a preferred embodiment as: and a heat preservation cavity is arranged between the outer side wall of the box body and the outer side wall of the hot air pipe.

Through adopting above-mentioned technical scheme, set up the heat preservation cavity between box and hot-blast main, the heat preservation cavity has certain reducing action to the heat of hot-blast effluvium, has reduced the speed that the heat scatters and disappears, has certain heat preservation effect to the hot-blast main, makes heating effect more abundant, has improved heating efficiency.

The present invention may be further configured in a preferred embodiment as: and a heat-insulating layer is arranged on one side of the heat-insulating cavity close to the box body.

Through adopting above-mentioned technical scheme, set up the heat preservation in the heat preservation cavity, utilize the heat preservation to carry out heat preservation to the hot-blast main, further reduced thermal scattering and disappearing, further improved the heat preservation effect to the hot-blast main, it is more abundant to the wind heating that the fan blew off, further improved heating efficiency.

The present invention may be further configured in a preferred embodiment as: and a supporting strip for supporting the heat-insulating layer is fixedly arranged on the outer side wall of the hot air pipe.

Through adopting above-mentioned technical scheme, set up the support bar on hot-blast main's lateral wall, the support bar makes the heat preservation installation more firm, prevents that the heat preservation from taking place to drop in long-time use.

The present invention may be further configured in a preferred embodiment as: a conical pipe is connected between the combustion chamber and the exhaust pipe, and the tip of the conical pipe faces the exhaust pipe.

Through adopting above-mentioned technical scheme, connect the conical duct between combustion chamber and blast pipe, steam is spouting the in-process to the blast pipe from the combustion chamber, and the conical duct has certain effect of assembling to steam, has improved steam from the combustion chamber to the speed of flow of blast pipe for steam is from the exhaust pipe exhaust speed, has improved hot-blast rate of heating and heating strength, makes fan exhaust wind heating more even, more abundant.

The present invention may be further configured in a preferred embodiment as: the exhaust hole sets up to four, and evenly distributed is on the lateral wall of blast pipe.

Through adopting above-mentioned technical scheme, set up exhaust hole to four, and with its evenly distributed on the lateral wall of blast pipe, improved the exhaust efficiency of steam from the blast pipe, make steam exhaust more even, and then make fan exhaust wind heating more even, simultaneously, improved the efficiency to the heating.

The present invention may be further configured in a preferred embodiment as: the hot-blast main is the centrum form setting, the hot-blast main includes main aspects and tip, the tip is close to air inlet department and sets up, the main aspects is linked together with the tuber pipe.

Through adopting above-mentioned technical scheme, set up the hot-blast main into centrum structure, the wind that the fan blew off enters into in the hot-blast main from the tip, and the combustor also is located one side of hot-blast main tip, this one side of tip is also got into to combustor spun steam, when steam and wind all enter into the box, steam heats wind in the hot-blast main, the tip space is bigger for the tip for the big end, it is bigger to leave the space that steam heated wind, it is more even to make the wind heating that the fan blew off, it is more abundant, hot-blast effect is better.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the dispersing pipe is arranged, the air inlet holes are formed in the dispersing pipe, and the dispersing pipe discharges part of hot air into the hot air pipe through the air inlet holes, so that the hot air is more uniformly distributed in the hot air pipe, the hot air is prevented from being completely discharged from the air outlet holes, the hot air is accumulated at the connecting part of the air outlet pipe and the hot air pipe, the hot air is favorable for heating the air discharged by the fan, and the air in the hot air pipe is heated more uniformly; the dispersion pipe damages the moving track of hot air, so that the hot air sprayed into the combustion chamber is shunted, the moving speed of the hot air in the combustion chamber is slowed down, the part of the combustion chamber close to the air inlet is fully heated, the heat distribution in the combustion chamber is more uniform, and the heating effect of air blown in by a fan is more uniform and sufficient;

2. the air inlet is formed in the fan, unabsorbed hot air is discharged into the fan through the air inlet by the air pipe, then is discharged into the hot air pipe by the fan, and finally is discharged from the air outlet pipe after being reheated. The air supply outlet is matched with the fan and the hot blast stove, so that the recycling of hot air is realized, the pollution of the hot air to air is reduced, the waste of energy is reduced, meanwhile, the conveying efficiency of the hot air is improved, and further, the working efficiency is improved;

3. through set up the heat preservation cavity between box and hot-blast main, the heat preservation cavity has certain reducing action to the heat of hot-blast effluvium, has reduced the speed that the heat scatters and disappears, has certain heat preservation effect to the hot-blast main, makes the heating effect more abundant, has improved heating efficiency.

Drawings

Fig. 1 is an overall schematic view of the present invention;

fig. 2 is a schematic cross-sectional view of the utility model with the fan and the burner removed.

Reference numerals: 1. a box body; 2. a hot air pipe; 21. a large end; 22. a small end; 3. an air outlet pipe; 4. an air inlet; 5. a fan; 6. an air supply outlet; 7. a combustion chamber; 8. an air inlet; 9. a combustion engine; 10. a tapered tube; 11. an exhaust pipe; 12. an exhaust hole; 13. a dispersion pipe; 14. an air inlet; 15. a heat preservation cavity; 16. a heat-insulating layer; 17. a support strip.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Combine fig. 1 and fig. 2 to show, the utility model discloses a hot-blast furnace, box 1 including the vertebra form, the hot-blast main 2 of the vertebra form has been welded in the box 1, hot-blast main 2 includes main 21 and tip 22, main 21 of hot-blast main 2 is connected with cylindric tuber pipe 3, rectangular air intake 4 has been seted up to one side that hot-blast main 2 is close to tip 22, whole cake-shaped fan 5 that is installed to air intake 4 department, fan 5 is used for toward blowing in hot-blast main 2, circular shape supply-air outlet 6 has been seted up on the lateral wall of fan 5, utilize tuber pipe (not shown in the figure) with unabsorbed hot-blast through air intake 4 row to fan 5 in, discharge to hot-blast main 2 by fan 5 again, discharge by play tuber pipe 3 at last, reach hot air circulation utilization's effect.

One end of the hot air pipe 2 close to the small end 22 is welded with a conical combustion chamber 7, one side of the combustion chamber 7 close to the small end 22 is provided with a circular air inlet 8, and the air inlet 8 is fixedly provided with a burner 9 through a bolt. The combustion of fuel in the combustion engine 9 generates a flame, and the combustion engine 9 injects the flame at the intake port 8 to generate hot gas in the combustion chamber 7, and the flame and the hot gas injected into the combustion chamber 7 heat the combustion chamber 7. The one end that air inlet 8 was kept away from to combustion chamber 7 is connected with conical duct 10, and the direction installation of combustion chamber 7 is kept away from to the most advanced orientation of conical duct 10, and the one end that conical duct 10 kept away from combustion chamber 7 is connected with cylindric blast pipe 11, and blast pipe 11 and the coaxial setting of conical duct 10 have seted up 4 rectangular exhaust holes 12 on the lateral wall of blast pipe 11, and exhaust hole 12 evenly distributed is on the lateral wall of blast pipe 11.

A plurality of cylindrical dispersion pipes 13 are welded in the combustion chamber 7, preferably, the number of the dispersion pipes 13 is 4, two ends of each dispersion pipe 13 penetrate out of the combustion chamber 7 and extend into the space between the hot air pipe 2 and the combustion chamber 7, the dispersion pipes 13 are vertically distributed on the combustion chamber 7, a plurality of circular air inlets 14 are formed in the direction, facing the air inlet 8, of each dispersion pipe 13, preferably, the number of the air inlets 14 is 5, all the air inlets 14 are located in the combustion chamber 7, and the air inlets 14 are communicated with the inner cavity of each dispersion pipe 13. In the process that hot air moves in the combustion chamber 7, part of hot air is sprayed on the dispersion pipe 13, enters the air inlet 14 on the dispersion pipe 13, is exhausted into the hot air pipe 2 through the inner cavity of the dispersion pipe 13, and the hot air which does not enter the air inlet 14 is sprayed to the exhaust pipe 11 and is exhausted into the hot air pipe 2 through the exhaust hole 12 on the exhaust pipe 11.

A heat preservation cavity 15 is arranged between the box body 1 and the hot air pipe 2, the heat preservation cavity 15 has a certain reducing effect on heat dissipated by hot air, and the heat dissipation speed is reduced. An insulating layer 16 is arranged on one side of the insulating cavity 15 close to the box body 1, and preferably, ceramic fibers are selected as the insulating material. The heat preservation layer 16 further reduces the heat loss and further improves the heat preservation effect of the hot air pipe 2. The welding has long banding support bar 17 on the lateral wall of hot-blast main 2, and the one end and the 16 looks butt of heat preservation that hot-blast main 2 was kept away from to support bar 17, and support bar 17 makes the installation of heat preservation 16 more firm, prevents that heat preservation 16 from taking place to drop in long-time use.

The implementation principle of the embodiment is as follows: in the working process of the hot blast stove, fuel in the combustion engine 9 is combusted to generate flame, the combustion engine 9 sprays the flame at the air inlet 8, so that hot air is generated in the combustion chamber 7, and the flame and the hot air sprayed into the combustion chamber 7 heat the combustion chamber 7. In the process of moving, part of hot air is sprayed on the dispersion pipe 13 and enters the air inlet 14 on the dispersion pipe 13, and then is discharged into the hot air pipe 2 through the inner cavity of the dispersion pipe 13, the hot air which does not enter the air inlet 14 is sprayed to the exhaust pipe 11 and is discharged into the hot air pipe 2 through the exhaust hole 12 on the exhaust pipe 11, the fan 5 blows air into the hot air pipe 2 through the air inlet 4 while the burner 9 sprays the hot air, the hot air sprayed by the burner 9 heats the air blown out by the fan 5, finally the heated hot air is discharged through the air outlet 3, the discharged hot air is discharged into the fan 5 through the air supply outlet 6 after the heating process, and finally the hot air is discharged into the hot air pipe 2 through the fan 5.

The dispersion pipe 13 discharges part of the hot air into the hot air pipe 2 through the air inlet hole 14, so that the hot air is distributed more uniformly in the hot air pipe 2, and the hot air is prevented from being discharged from the exhaust hole 12 completely, so that the hot air is accumulated at the connecting part of the air outlet pipe 3 and the hot air pipe 2, the hot air is favorable for heating the air discharged by the fan 5, and the air in the hot air pipe 2 is heated more uniformly; the dispersion pipe 13 itself destroys the track of marcing of steam, makes the steam reposition of redundant personnel of spouting into in the combustion chamber 7, has slowed down the speed that steam marched in the combustion chamber 7, makes the combustion chamber 7 be close to the partial abundant heating of air inlet 8, and then makes the heat distribution in the combustion chamber 7 more even, and the wind heating effect of blowing in to fan 5 is more even, more abundant. The air inlet 4 is formed in the fan 5, unabsorbed hot air is discharged into the fan 5 through the air inlet 4 by the air pipe, then is discharged into the hot air pipe 2 by the fan 5, and finally is discharged out of the air outlet pipe 3 after being reheated. The air supply outlet 6 is matched with the fan 5 and the hot blast stove, so that hot air recycling is realized, pollution to air caused by hot air is reduced, energy waste is reduced, meanwhile, the hot air conveying efficiency is improved, and further the working efficiency is improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a hot blast stove, includes box (1), its characterized in that: the air-conditioning unit is characterized in that a hot air pipe (2) is arranged in the box body (1), one end of the hot air pipe (2) is connected with an air outlet pipe (3), a combustion chamber (7) is installed in the hot air pipe (2), one end, far away from the air outlet pipe (3), of the combustion chamber (7) is provided with an air inlet (8), the air inlet (8) is connected with a burner (9), the combustion chamber (7) is provided with an exhaust pipe (11) far away from the air inlet (8), the exhaust pipe (11) is communicated with the combustion chamber (7), the peripheral side wall of the exhaust pipe (11) is provided with a plurality of exhaust holes (12), the combustion chamber (7) is internally inserted with a plurality of dispersion pipes (13), two ends of the dispersion pipes (13) respectively penetrate out of the combustion chamber (7) and extend into the hot air pipe (2), and the dispersion pipes (13) are provided with a plurality, the air inlet (14) is communicated with the inner cavity of the dispersion pipe (13), the box body (1) is provided with an air inlet (4), the air inlet (4) is communicated with the hot air pipe (2), and the air inlet (4) is provided with a fan (5).

2. The hot blast stove according to claim 1, characterized in that: and an air supply outlet (6) communicated with the air outlet of the fan (5) is formed in the fan (5).

3. The hot blast stove according to claim 1, characterized in that: and a heat preservation cavity (15) is arranged between the outer side wall of the box body (1) and the outer side wall of the hot air pipe (2).

4. The stove according to claim 3, wherein: and a heat-insulating layer (16) is arranged on one side of the heat-insulating cavity (15) close to the box body (1).

5. The stove according to claim 4, wherein: and a supporting strip (17) for supporting the heat-insulating layer (16) is fixedly arranged on the outer side wall of the hot air pipe (2).

6. The hot blast stove according to claim 1, characterized in that: a conical pipe (10) is connected between the combustion chamber (7) and the exhaust pipe (11), and the tip of the conical pipe (10) faces the exhaust pipe (11).

7. The hot blast stove according to claim 1, characterized in that: the exhaust holes (12) are four and are uniformly distributed on the outer side wall of the exhaust pipe (11).

8. The hot blast stove according to claim 1, characterized in that: the hot-blast main (2) is the centrum form setting, hot-blast main (2) are including main (21) and tip (22), tip (22) are close to air inlet (8) department and are set up, main (21) are linked together with air-out pipe (3).

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