CN210922195U

CN210922195U - Annular heating furnace

Info

Publication number: CN210922195U
Application number: CN201921980722.2U
Authority: CN
Inventors: 董仁明
Original assignee: Xinghua Jinye Alloy Casting Co ltd
Current assignee: Xinghua Jinye Alloy Casting Co ltd
Priority date: 2019-11-17
Filing date: 2019-11-17
Publication date: 2020-07-03
Anticipated expiration: 2029-11-17

Abstract

The utility model discloses an annular heating furnace, which relates to the technical field of annular heating furnaces, and comprises a heating furnace main body, wherein the top of the heating furnace main body is connected with a furnace cover, the annular heating furnace, a heat insulation layer and a sealing layer are made of ceramic fiber materials, the ceramic fiber materials have cracks at high temperature, a conical furnace tube is supported outside the conical furnace tube to prevent the heat insulation layer and the sealing layer from dropping, meanwhile, a supporting steel plate supports the heat insulation layer and the sealing layer, the heat insulation layer insulates the supporting steel plate to increase the high temperature resistance of the furnace tube and prevent the smoke channeling phenomenon at the furnace top, the heating furnace can be prevented from deforming due to the thermal expansion and cold contraction effect through a honeycomb-shaped clamping wall, when the annular heating furnace is heated, fire light can be generated, the first coating layer, the second coating layer and the third coating layer can refract the fire light to transmit the heat in the inner, the heat is transferred to the object to be heated through the furnace tube, so that the internal heating quantity is increased.

Description

Annular heating furnace

Technical Field

The utility model relates to an annular heating furnace technical field specifically is an annular heating furnace.

Background

The annular heating furnace is provided with a preheating section, a heating section and a soaking section, the length proportion is reasonably distributed, the temperature of each section is convenient to adjust and control independently, a discharge port and a feeding port of the soaking section of the annular furnace are adjacent, when in normal production, furnace gas of the soaking section does not overflow a part from a gap of a discharge furnace door, and most of the furnace gas flows into the heating second section, the heating first section and the preheating section in the reverse direction of the moving direction of a steel billet and then enters a flue.

The existing annular heating furnace is only formed by a wall body poured by refractory materials, the heat radiation capability of the furnace wall to a furnace tube is low, so that the heating of the furnace wall is almost completely transmitted to the outside of the furnace, the heat radiation loss of the furnace body is increased, the energy consumption is increased, the smoke is exhausted in an upward smoke exhaust mode due to the influence of the annular furnace structure, the smoke exhaust port is high in position, the furnace gas has a natural floating trend, after the furnace gas enters a preheating section, a part of the furnace gas in a soaking section is not used for heating steel billets, the furnace gas is sucked into an ascending flue through a lower gap of two partition walls by strong suction force, so that the furnace gas at the discharge end of the soaking section is not full of the furnace, the temperature at the top of the heating furnace is rapidly increased due to the increase of heat supply, the top of.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an annular heating furnace to solve the problem that the furnace wall is heated and is transmitted outside the furnace, the furnace gas heating is uneven and the flue gas is scurry in disorder among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an annular heating furnace comprises a heating furnace main body, the top of the heating furnace main body is connected with a furnace cover, the top of the furnace cover is connected with a flue, two sides of the bottom of the furnace cover are connected with partition walls, the inner wall of the heating furnace main body is provided with a clamping wall, one side of the double-layered wall is connected with a furnace tube, one side of the furnace tube is connected with an inner furnace wall, two sides of the inner wall of the heating furnace main body are welded with supporting steel plates, a heat insulation layer and a sealing layer are connected among the inner furnace wall, the supporting steel plate and the furnace cover, the inner wall of the inner furnace wall is connected with a coating plate, a first coating layer, a second coating layer and a third coating layer are respectively coated on one side of the coating plate, a second motor is arranged in the heating furnace main body, the output end of the second motor is connected with fan blades, first motors are installed on two sides of the second motor, and a furnace plate is fixed at the output end of each first motor.

Preferably, the top of the furnace tube is conical, and a sealing gasket is arranged between the furnace tube and the heat insulation layer.

Preferably, the heat insulation layer and the sealing layer are both made of ceramic fiber materials.

Preferably, the supporting steel plates are provided with a plurality of supporting steel plates which are arranged irregularly.

Preferably, the chuck wall is in a honeycomb shape, and a plurality of groups of metal honeycomb balls are filled in the chuck wall.

Preferably, the surface of the first coating layer is a zirconium dioxide coating layer, the surface of the second coating layer is a silicon dioxide coating layer, and the outer surface of the third coating layer is a chromium oxide coating layer.

Preferably, the first dope layer, the second dope layer and the third dope layer are provided with a plurality of blocks, and a plurality of blocks are longitudinally arranged on the first dope layer, the second dope layer and the third dope layer.

Compared with the prior art, the beneficial effects of the utility model are that: the annular heating furnace drives the fan blades to rotate through the second motor, so that air in the heating furnace flows upwards at an accelerated speed, updraft is formed in the heating furnace, the phenomena of temperature aggregation and heating dead angles in the heating furnace are prevented, heating and mixing are uniform, the heat insulation layer and the sealing layer are made of ceramic fiber materials, the ceramic fiber materials have cracks at high temperature, the outer part of the conical furnace tube is supported, the heat insulation layer and the sealing layer are prevented from falling off, meanwhile, the heat insulation layer and the sealing layer are supported by the supporting steel plate, the heat insulation layer insulates the supporting steel plate, the high temperature resistance of the furnace tube is improved, the sealing performance of the furnace cover is further improved, the smoke channeling phenomenon of the furnace top is prevented, the deformation of the heating furnace due to the thermal expansion and cold contraction effects can be avoided through the honeycomb-shaped clamping wall, the service life of the, can produce the flame, first dope layer, second dope layer and third dope layer can be to its flame refraction, and the heat in with interior furnace wall passes to the boiler tube, has through the boiler tube to passing to for the object that needs the heating, improves inside heating capacity.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the structure of the outer surface of the partition wall of the present invention;

fig. 3 is an enlarged schematic view of a diagram of the present invention.

In the figure: 1. a heating furnace main body; 2. a flue; 3. a partition wall; 4. a chuck wall; 5. an inner furnace wall; 6. a furnace plate; 7. a first motor; 8. a second motor; 9. a fan blade; 10. coating plates; 11. a first coating layer; 12. a second coating layer; 13. a third coating layer; 14. a thermal insulation layer; 15. a sealing layer; 16. a furnace tube; 17. a support steel plate; 18. a furnace cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an annular heating furnace comprises a heating furnace main body 1, a flue 2, a partition wall 3, a partition wall 4, an inner furnace wall 5, a furnace plate 6, a first motor 7, a second motor 8, fan blades 9, a coating plate 10, a first coating layer 11, a second coating layer 12, a third coating layer 13, a heat insulation layer 14, a sealing layer 15, a furnace tube 16, a supporting steel plate 17 and a furnace cover 18, wherein the top of the heating furnace main body 1 is connected with the furnace cover 18, the top of the furnace cover 18 is connected with the flue 2, two sides of the bottom of the furnace cover 18 are connected with the partition wall 3, the inner wall of the heating furnace main body 1 is provided with the partition wall 4, one side of the partition wall 4 is connected with the furnace tube 16, one side of the furnace tube 16 is connected with the inner furnace wall 5, the supporting steel plate 17 is welded on two sides of the inner wall of the heating furnace main body 1, the heat insulation layer 14 and the sealing layer 15 are, first dope layer 11, second dope layer 12 and third dope layer 13 have been paintd respectively to one side of scribbling flitch 10, the internally mounted of heating furnace main part 1 has second motor 8, the output of second motor 8 is connected with flabellum 9, first motor 7 is all installed to the both sides of second motor 8, the output of first motor 7 is fixed with stone or metal plate 6, drives flabellum 9 through second motor 8 and rotates for the air in the heating furnace upwards flows with higher speed, forms the updraft in the heating furnace, prevents the emergence of the phenomenon at the inside temperature of heating furnace collection and heating dead angle, makes the heating misce bene.

Referring to fig. 1 to 3, the top of the furnace tube 16 is tapered, a sealing gasket is arranged between the furnace tube 16 and the thermal insulation layer 14, a plurality of supporting steel plates 17 are arranged, the plurality of supporting steel plates 17 are arranged irregularly, the ceramic fiber material has cracks at high temperature through the arranged tapered furnace tube 16, the tapered furnace tube 16 is supported at the outer part thereof, the thermal insulation layer 14 and the sealing layer 15 can be prevented from dropping, the supporting steel plates 17 support the thermal insulation layer 14 and the sealing layer 15, the thermal insulation layer 14 insulates heat of the supporting steel plates 17, and the strength of the supporting steel plates 17 is improved.

Referring to fig. 1-3, the heat insulating layer 14 and the sealing layer 15 are made of ceramic fiber materials, and the heat insulating layer 14 and the sealing layer 15 are made of ceramic fiber materials, so that the high temperature resistance of the furnace tube 16 is improved, the sealing performance of the furnace cover 18 is further improved, the smoke channeling phenomenon at the furnace top is prevented, the partition wall 4 is honeycomb-shaped, a plurality of groups of metal honeycomb balls are filled in the partition wall 4, and the deformation of the heating furnace due to the thermal expansion and cold contraction effect can be avoided through the honeycomb-shaped partition wall 4, so that the service life of the heating furnace is prolonged.

Referring to fig. 1-3, the surface of the first coating layer 11 is a zirconium dioxide coating layer, the surface of the second coating layer 12 is a silicon dioxide coating layer, the outer surface of the third coating layer 13 is a chromium oxide coating layer, a plurality of first coating layers 11, second coating layers 12 and third coating layers 13 are arranged, and the first coating layers 11, second coating layers 12 and third coating layers 13 are all arranged longitudinally, so that when an annular heating furnace is heated, fire light is generated, the first coating layers 11, second coating layers 12 and third coating layers 13 can refract the fire light, heat in the inner furnace wall 5 is transferred to the furnace tube 16, and the objects to be heated are transferred through the furnace tube 16, so that the internal heating amount is increased.

The working principle is as follows: firstly, a user heats the heating main body 1, an object to be heated is placed in the furnace tray 6, the power supply is started, the second motor 8 is started to drive the fan blades 9 to rotate, air in the heating furnace flows upwards during heating, an ascending air flow is formed in the heating furnace, the heat insulation layer 14 and the sealing layer 15 are made of ceramic fiber materials, the ceramic fiber materials have cracks at high temperature, the outer part of the conical furnace tube 16 supports the conical furnace tube to prevent the heat insulation layer 14 and the sealing layer 15 from falling, meanwhile, the support steel plate 17 supports the heat insulation layer 14 and the sealing layer 15, the heat insulation layer insulates the support steel plate 17, when the annular heating furnace is used for heating, fire light can be generated, the first coating layer 11, the second coating layer 12 and the third coating layer 13 can refract the fire light, heat in the inner furnace wall 5 is transferred to the furnace tube 16, and the heat is transferred to an object needing to be heated through the furnace tube 16.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an annular heating furnace, includes heating furnace main part (1), its characterized in that: the heating furnace is characterized in that the top of the heating furnace main body (1) is connected with a furnace cover (18), the top of the furnace cover (18) is connected with a flue (2), two sides of the bottom of the furnace cover (18) are connected with partition walls (3), the inner wall of the heating furnace main body (1) is provided with a partition wall (4), one side of the partition wall (4) is connected with a furnace tube (16), one side of the furnace tube (16) is connected with an inner furnace wall (5), supporting steel plates (17) are welded on two sides of the inner wall of the heating furnace main body (1), a heat insulation layer (14) and a sealing layer (15) are connected among the inner furnace wall (5), the supporting steel plates (17) and the furnace cover (18), the inner wall of the inner furnace wall (5) is connected with a coating plate (10), one side of the coating plate (10) is respectively coated with a first coating layer (11), a second coating layer (12) and a third, the output of second motor (8) is connected with flabellum (9), first motor (7) are all installed to the both sides of second motor (8), the output of first motor (7) is fixed with stove dish (6).

2. The annular heating furnace according to claim 1, wherein: the top of the furnace tube (16) is conical, and a sealing gasket is arranged between the furnace tube (16) and the heat insulation layer (14).

3. The annular heating furnace according to claim 1, wherein: the heat insulation layer (14) and the sealing layer (15) are both made of ceramic fiber materials.

4. The annular heating furnace according to claim 1, wherein: the supporting steel plates (17) are arranged in a plurality of irregular shapes, and the supporting steel plates (17) are arranged in the irregular shapes.

5. The annular heating furnace according to claim 1, wherein: the sandwich wall (4) is honeycomb-shaped, and a plurality of groups of metal honeycomb balls are filled in the sandwich wall (4).

6. The annular heating furnace according to claim 1, wherein: the surface of the first coating layer (11) is a zirconium dioxide coating layer, the surface of the second coating layer (12) is a silicon dioxide coating layer, and the outer surface of the third coating layer (13) is a chromium oxide coating layer.

7. The annular heating furnace according to claim 1, wherein: the paint is characterized in that the first paint layer (11), the second paint layer (12) and the third paint layer (13) are provided with a plurality of blocks, and the plurality of blocks are longitudinally arranged on the first paint layer (11), the second paint layer (12) and the third paint layer (13).