CN210916202U

CN210916202U - Heat preservation structure of hot rolling homogenizing furnace

Info

Publication number: CN210916202U
Application number: CN201922017534.6U
Authority: CN
Inventors: 周镇强; 梁金满
Original assignee: Foshan Juya Aluminum Co ltd
Current assignee: Foshan Juya Aluminum Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-07-03
Anticipated expiration: 2029-11-21

Abstract

The utility model relates to a metal heat treatment device, in particular to a heat preservation structure of a hot rolling homogenizing furnace, which comprises a furnace body, a cavity is arranged in the wall of the furnace body, a heat preservation shell is arranged in the cavity, the inner side of the heat preservation shell is coated with a first heat preservation coating layer, the outer side of the heat preservation shell is coated with a second heat preservation coating layer, a heat absorption box body is welded at the middle part of the top surface of the furnace body, and a heat absorption coating layer group is arranged in the heat absorption box body, the utility model has simple structure and strong practicability, the heat in the furnace body can be effectively prevented from being diffused to the outside through the heat preservation shell, the first heat preservation coating layer and the second heat preservation coating layer arranged in the wall of the furnace body, thereby having better heat preservation and heat insulation effects, in addition, the heat in the waste gas can be effectively preserved through the, and then conveyed back into the furnace body, thereby not only having the advantage of energy saving, but also further improving the heat preservation performance of the homogenizing furnace.

Description

Heat preservation structure of hot rolling homogenizing furnace

Technical Field

The utility model relates to a metal heat treatment device, in particular to a heat preservation structure of a hot rolling homogenizing furnace.

Background

The homogenizing furnace is used for metal heat treatment, internal stress and component segregation easily exist in the aluminum alloy product after the aluminum alloy is cast, the homogenizing furnace enables the metallographic phase in the aluminum alloy product to change by controlling the temperature, the casting internal stress and the component segregation of the aluminum alloy product can be eliminated to a certain extent, and the quality of the aluminum alloy product is improved.

The in-process of homogeneity stove at work, because heating device is when heating the aluminium bar, a large amount of heats can leave the heating furnace along with waste gas, however, current homogeneity stove is difficult to accomplish to separate its heat and waste gas to cause the heat in the waste gas to have the defect of being wasted. Based on this, we propose a hot rolling homogeneity stove insulation construction to solve the shortcoming of prior art.

Disclosure of Invention

The utility model provides a to prior art not enough, the utility model provides a hot rolling homogeneity stove insulation construction, this insulation construction can effectively preserve the heat in the waste gas through simple structural design, further improves the thermal insulation performance of homogeneity stove.

The technical scheme of the utility model is that:

the utility model provides a hot rolling homogeneity stove insulation construction which characterized in that: the furnace comprises a furnace body, wherein a cavity is arranged in the wall of the furnace body, a heat-insulating shell is arranged in the cavity, a first heat-insulating coating layer is coated on the inner side of the heat-insulating shell, a second heat-insulating coating layer is coated on the outer side of the heat-insulating shell, a support column is welded on the inner bottom of the furnace body, a placing frame is welded on the top of the support column, a gas collecting hopper is welded on the inner top of the furnace body, a heat-absorbing box body is welded in the middle of the top surface of the furnace body, the bottom surface of the heat-absorbing box body is communicated with the gas collecting hopper, a waste gas outlet hopper is welded on the top surface of the heat-absorbing box body, a heat-absorbing coating group is arranged in the heat-absorbing box body and consists of a plurality of heat-absorbing coatings, the heat-absorbing coatings are welded by connecting bars, the, the air outlet pipe end of the air cooler is communicated with the heat absorption box body and fixed on the heat absorption box body, the right side surface of the heat absorption box body is welded with the air guide hopper, the left end of the air guide hopper is communicated with the heat absorption box body, the right end of the air guide hopper is connected with the heat return pipe, the other end of the heat return pipe extends to the bottom of the furnace body and is communicated with the furnace body, the top of the heat absorption box body is sequentially welded with two waste gas filter screens, support legs are welded on the four corners of the bottom surface of the furnace body, a support plate is welded between the support legs and the support legs, the top surface of the support plate is fixedly provided with a hot air blower, the air outlet pipe end of the hot air blower is communicated with the furnace body and is welded with a heat output hopper, the top of the left side surface of the heat absorption box body is provided with a temperature sensor, the, air-cooler and temperature sensor respectively with control module electric connection, temperature controller and temperature sensor electric connection.

Furthermore, the heat-insulating shell is made of high-temperature-resistant high-strength aluminum alloy.

Furthermore, the first heat-preservation coating layer and the second heat-preservation coating layer are both made of nano heat-preservation coatings.

Further, the heat absorption coating is a PbS coating.

Furthermore, a control switch and an indicator light connected with the control module are further arranged on the control box body.

Furthermore, the positive side of the furnace body is hinged with a door leaf through a hinge, and the door leaf is provided with an observation port.

The utility model has the advantages that: the utility model discloses simple structure, the practicality is strong, through be equipped with the heat preservation casing in the wall of furnace body, first heat preservation dope layer and second heat preservation dope layer, can prevent effectively that the inside heat diffusion of furnace body from to the outside, better thermal-insulated effect that keeps warm has, in addition, through being equipped with the air-cooler, heat-absorbing scribbles the bed set, waste gas filter screen and backheat pipe, can effectively save the heat in the waste gas, and then in carrying back the furnace body, not only have energy-conserving advantage, moreover, the thermal insulation performance of homogeneity stove has further been improved.

Drawings

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

fig. 2 is a schematic diagram of the heat absorption coating set of the present invention.

In the figure, 1, a furnace body; 2. a heat-insulating shell; 3. a first heat preservation coating layer; 4. a second heat-insulating coating layer; 5. a support pillar; 6. placing a rack; 7. a gas collecting hopper; 8. a heat absorption box body; 9. an exhaust gas outlet hopper; 10. a heat absorbing coating; 11. a connecting strip; 12. an air cooler; 13. a wind guide hopper; 14. a heat recovery pipe; 15. an exhaust gas filter screen; 16. a support leg; 17. a support plate; 18. a hot air blower; 19. a heat output hopper; 20. a temperature sensor; 21. a control box body; 22. a temperature controller; 23. a control switch; 24. and an indicator light.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

as shown in figures 1-2, a hot rolling homogeneity stove insulation construction, it includes furnace body 1, be provided with the cavity in the wall of furnace body 1, be provided with heat preservation casing 2 in the cavity, the inboard coating of heat preservation casing 2 has first heat preservation dope layer 3, the outside coating of heat preservation casing 2 has second heat preservation dope layer 4, the interior bottom welding of furnace body 1 has support column 5, the top welding of support column 5 has rack 6, the interior top welding of furnace body 1 has gas collection fill 7, the top surface middle part welding of furnace body 1 has heat absorption box 8, the bottom surface and the gas collection fill 7 intercommunication of heat absorption box 8, the top surface welding of heat absorption box 8 has waste gas play gas fill 9, the inside of heat absorption box 8 is provided with the heat absorption coating group, the heat absorption coating group comprises a plurality of heat absorption coatings 10, all through connecting strip 11 welding and the inside and outside of heat absorption coating 10 between heat absorption coating 10 through connecting strip 11 and heat absorption box 8 in connecting strip 11 Wall welding, the air cooler 12 is installed on the top surface of the furnace body 1 and on the left side of the heat absorption box body 8, the air outlet pipe end of the air cooler 12 is communicated with the heat absorption box body 8 and fixed on the heat absorption box body 8, the right side surface of the heat absorption box body 8 is welded with the air guide hopper 13 and the left end of the air guide hopper 13 is communicated with the heat absorption box body 8, the right end of the air guide hopper 13 is connected with the heat return pipe 14, the other end of the heat return pipe 14 extends to the bottom of the furnace body 1 and is communicated with the furnace body 1, the top of the heat absorption box body 8 is welded with two waste gas filter screens 15 in sequence, the bottom four corners of the furnace body 1 are welded with support legs 16, a support plate 17 is welded between the support legs 16 and the support legs 16, a hot air heater 18 is fixedly installed on the top surface of the support plate 17, the air outlet pipe end of the, the utility model discloses a furnace body 1, including furnace body 1, air-cooler 12, temperature sensor 20, control module 21, control module 22, air-cooler 12 and temperature sensor 20, the outer wall fixed mounting in left surface top of furnace body 1 has control box 21, be provided with control module in the control box 21, the inside of control box 21 still is provided with the temperature controller 22 who is connected with control module, temperature controller 22 and temperature sensor 20 electric connection respectively.

The heat preservation shell 2 is made of high-temperature-resistant high-strength aluminum alloy.

The first heat-insulating coating layer 3 and the second heat-insulating coating layer 4 are both made of nano heat-insulating coatings. The nano heat-insulating coating adopts a nano anti-corrosion heat-insulating coating disclosed by Chinese patents, and the patent numbers are as follows: 201811271650.4, comprising the following components by weight: 40-60 parts of acrylic resin, 20-30 parts of modified organic silicon resin, 6-12 parts of modified nano titanium nitride, 5-10 parts of bentonite, 10-16 parts of nano ceramic hollow particles, 10-16 parts of graphite powder, 2-6 parts of film forming auxiliary agent, 0.1-0.5 part of dispersing agent, 0.6-1.2 parts of pigment, 0.1-0.5 part of defoaming agent and 20-30 parts of water. The nano heat-insulating coating has better heat-insulating effect.

The heat absorbing coating 10 is a PbS coating. The PbS coating is prepared by using 0.1 mu m dendritic crystal PbS as a pigment and ethylene propylene rubber or fluororesin as a bonding agent, is sprayed on a polished galvanized iron sheet to form a coating with the thickness of about 0.6mg/cm2, has the absorption ratio of about 0.85-0.91 and the emission ratio of about 0.23-0.40, and is heat-resistant at a temperature of more than 280 ℃.

The control box 21 is also provided with a control switch 23 and an indicator light 24 which are connected with the control module.

The front side of the furnace body 1 is hinged with a door leaf (not shown) through a hinge, and the door leaf is provided with an observation port. Through being equipped with door leaf and viewing aperture, not only be convenient for the workman put into the rack with the work piece on, moreover, still be favorable to the workman in time to master the inside condition of furnace body.

The utility model discloses a theory of operation does: during the use, set up required temperature parameter through control module, then by temperature controller 22 and the temperature sensor 20 accurate control heat absorption box 8 interior temperature of being connected with control module, then, manual start air heater 18, the heat is exported in the heat goes out the hopper 19, when heat and waste gas together get into heat absorption box 8 through gas collecting hopper 7, most heat can be absorbed by heat absorption coating 10, and waste gas then flows out through the clearance between heat absorption coating 10 and the heat absorption coating 10, when passing through waste gas filter screen 15, waste gas filter screen 15 can block remaining heat, and waste gas then flows to waste gas play hopper 9 and flow to the atmosphere through waste gas filter screen 15. When the temperature sensor 20 detects that the temperature of the heat absorption box body 8 reaches a parameter value, the temperature sensor 20 transmits a signal to the control module, at the moment, the indicator lamp 24 is turned on, the control module starts the air cooler 12, and the air cooler 12 blows the heat absorption coating 10 and the temperature in the heat absorption box body 8 back to the furnace body 1 together, so that the heat preservation effect is realized. The electric elements involved in the present application are already present in the market, and are not described in detail in the present application.

The utility model discloses an be equipped with heat preservation casing 2 in the wall of furnace body 1, first heat preservation dope layer 3 and second heat preservation dope layer 4, can prevent effectively that the heat diffusion of 1 inside of furnace body from to the outside, better thermal-insulated effect that keeps warm has, in addition, through being equipped with air-cooler 12, the heat-absorbing coating group, exhaust gas filter screen 15 and backheat pipe 14, can effectively save the heat in the waste gas, and then in the conveying returns furnace body 1, not only have energy-conserving advantage, moreover, the thermal insulation performance of homogeneity stove has further been improved.

The foregoing embodiments and description have been provided to illustrate the principles and preferred embodiments of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed.

Claims

1. The utility model provides a hot rolling homogeneity stove insulation construction which characterized in that: the furnace comprises a furnace body (1), wherein a cavity is arranged in the wall of the furnace body (1), a heat-insulating shell (2) is arranged in the cavity, a first heat-insulating coating layer (3) is coated on the inner side of the heat-insulating shell (2), a second heat-insulating coating layer (4) is coated on the outer side of the heat-insulating shell (2), a support column (5) is welded on the inner bottom of the furnace body (1), a placing frame (6) is welded on the top of the support column (5), an air collecting hopper (7) is welded on the inner top of the furnace body (1), a heat absorption box body (8) is welded in the middle of the top surface of the furnace body (1), the bottom surface of the heat absorption box body (8) is communicated with the air collecting hopper (7), a waste gas outlet hopper (9) is welded on the top surface of the heat absorption box body (8), a heat absorption coating group is arranged in the heat, the inner side and the outer side of the heat absorption coating (10) are welded through the connecting strips (11) and the heat absorption coating (10) are welded with the inner wall of the heat absorption box body (8) through the connecting strips (11), the top surface of the furnace body (1) is positioned on the left side of the heat absorption box body (8), an air cooler (12) is installed on the left side of the heat absorption box body (8), the air outlet pipe end of the air cooler (12) is communicated with the heat absorption box body (8) and is fixed on the heat absorption box body (8), the left end of the air guide hopper (13) and the air guide hopper (13) are welded on the right side surface of the heat absorption box body (8) and are communicated with the heat absorption box body (8), the right end of the air guide hopper (13) is connected with a heat return pipe (14), the other end of the heat return pipe (14) extends to the bottom of the furnace body (1) and is communicated with the furnace body (1), a waste gas filter, the welding has backup pad (17) between stabilizer blade (16) and stabilizer blade (16), the top surface fixed mounting of backup pad (17) has air heater (18), the air-out pipe end intercommunication furnace body (1) and the welding of air heater (18) have heat play gas fill (19), temperature sensor (20) are installed at the left surface top of heat absorption box (8), the left surface top outer wall fixed mounting of furnace body (1) has control box (21), be provided with control module in control box (21), the inside of control box (21) still is provided with temperature controller (22) of being connected with control module, air-cooler (12) and temperature sensor (20) respectively with control module electric connection, temperature controller (22) and temperature sensor (20) electric connection.

2. The heat-insulating structure of the hot-rolling homogenizing furnace according to claim 1, characterized in that: the heat preservation shell (2) is made of high-temperature-resistant high-strength aluminum alloy.

3. The heat-insulating structure of the hot-rolling homogenizing furnace according to claim 2, characterized in that: the first heat-preservation coating layer (3) and the second heat-preservation coating layer (4) are both made of nano heat-preservation coatings.

4. The heat-insulating structure of the hot-rolling homogenizing furnace according to claim 3, characterized in that: the heat absorption coating (10) is a PbS coating.

5. The heat-insulating structure of the hot-rolling homogenizing furnace according to claim 4, characterized in that: and the control box body (21) is also provided with a control switch (23) and an indicator light (24) which are connected with the control module.

6. The heat-insulating structure of the hot-rolling homogenizing furnace according to claim 5, characterized in that: the positive side of the furnace body (1) is hinged with a door leaf through a hinge, and the door leaf is provided with an observation port.