Movable holding furnace

Abstract

The utility model belongs to the technical field of metal processing, and particularly relates to a movable heat preservation furnace which comprises a box body and a cover body arranged at the upper end of the box body, an aluminum inlet and an observation opening are formed in the upper ends of the two sides of the box body respectively, and an aluminum outlet is formed in the bottom end of one side of the box body. The upper end of the cover body is provided with two heating devices and two degassing devices, and the heating devices and the degassing devices are respectively arranged on two diagonal lines of the upper end surface of the cover body. By innovatively designing the movable heat preservation furnace, rolling mill production can be synchronously met in the overhaul period of other heat preservation furnaces, a solid foundation is laid for overhaul of the heat preservation furnace and shutdown of the furnace and non-stop of the rolling mill in the later stage of cast rolling, and the cast rolling is assisted to complete the production target index in full production when the heat preservation furnace is overhauled; meanwhile, by optimizing the design of the number and positions of the heating devices and the degassing devices, the degassing and heating functions can be fully achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal processing, in particular to a mobile insulation furnace. Background Art

[0002] During the casting and rolling production process, the molten aluminum in the smelting furnace will first be transported to the holding furnace for standing and degassing operations, and finally sent to the casting and rolling equipment through the holding furnace for production.

[0003] At present, the service life of the insulation furnace for casting and rolling is as long as 10 years or even longer. There are problems such as the furnace body has been deformed and the silicon carbon rod cannot be replaced. In addition, the overhaul of the insulation furnace faces the need to stop the production of the subsequent casting and rolling mill, resulting in increased costs. At the same time, it takes about 75 days to repair the insulation furnace. The newly repaired furnace needs to be naturally dried for 15 days, and then the furnace is baked for 25 days using firewood and silicon carbon rods according to the process curve to ensure the life of the furnace. The long maintenance cycle disrupts the normal casting and rolling production.

[0004] Therefore, it is urgent to design a movable insulation furnace to cope with the above situation. Utility Model Content

[0005] In view of the technical problems existing in the background technology, the utility model provides a mobile insulation furnace, which can synchronously meet the production of the rolling mill during the overhaul period, and overhaul the insulation furnace for the later stage of casting and rolling. The furnace can be stopped but the rolling mill can not be stopped, thereby helping the casting and rolling to achieve full production targets when the insulation furnace is overhauled.

[0006] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0007] A mobile insulation furnace comprises a box body and a cover body arranged at the upper end of the box body, wherein the upper ends of both sides of the box body are respectively provided with an aluminum inlet and an observation port, and the bottom end of one side of the box body is provided with an aluminum outlet; the upper end of the cover body is provided with a heating device and a degassing device, and two of the heating devices and the degassing devices are respectively provided, and the heating devices and the degassing devices are respectively arranged on the two diagonals of the upper end surface of the cover body.

[0008] Optionally, the box body includes a box shell, a box lining, a ground casting layer, and insulation bricks. Insulation bricks are arranged inside the box shell, the bottom inner wall of the box shell is arranged close to the insulation bricks, and a box ceramic fiberboard is arranged between the side wall of the box shell and the insulation bricks; a box lining is arranged inside the insulation bricks, the side wall of the insulation bricks is arranged close to the box lining, and a ground casting layer is arranged between the bottom wall of the insulation bricks and the box lining.

[0009] Optionally, the cover body includes a cover body outer shell and a cement casting layer, the cement casting layer is arranged inside the cover body outer shell, and a cover body ceramic fiberboard is arranged between the cover body outer shell and the cement casting layer.

[0010] Optionally, the aluminum outlet is integrally arranged on the bottom outer wall of the box lining, and the aluminum inlet and the observation port are integrally arranged on the upper outer wall of the box lining; the aluminum outlet, aluminum inlet and observation port pass through the insulation bricks, the box ceramic fiberboard and the box shell to the outside in sequence.

[0011] Optionally, a circle of pressure ring is arranged at the upper end of the box lining, the bottom wall of the pressure ring is in close contact with the upper end surface of the insulation brick, and the outer side wall of the pressure ring is arranged in close contact with the inner wall of the ceramic fiberboard of the box.

[0012] Optionally, the outer wall of the aluminum outlet is provided with two stepped platforms, and the stepped platforms are arranged close to the insulation bricks and the inner walls of the ceramic fiberboard of the box body.

[0013] Optionally, the aluminum outlet is configured to be U-shaped.

[0014] Optionally, the heating device includes a heating body and a heating rod, the heating body is provided with a first flange, the first flange and the cover are connected by bolts, and the heating rod is extended into the interior of the box.

[0015] Optionally, the degassing device includes a transmission box, a drive motor and a degassing rotor, the drive motor is connected to the input shaft of the transmission box, the output shaft of the transmission box is connected to the degassing rotor, the degassing rotor extends into the interior of the box, a connecting tube is provided at the bottom end of the transmission box, a second flange is provided at the bottom end of the connecting tube, and the second flange and the cover body are connected by bolts.

[0016] Optionally, four positioning holes are arranged around the cover body, and a plurality of connecting holes are arranged on the circumference of each positioning hole. A first positioning cylinder is arranged at the bottom end of the first flange, and a second positioning cylinder is arranged at the bottom end of the second flange. The first positioning cylinder and the second positioning cylinder are respectively inserted into the positioning holes.

[0017] The utility model has the following advantages and beneficial effects:

[0018] The utility model innovatively designs a mobile insulation furnace, which can meet the production of the rolling mill synchronously during the overhaul of other insulation furnaces, laying a solid foundation for the overhaul of the insulation furnace in the later stage of casting and rolling, and stopping the furnace without stopping the rolling mill, and helping the casting and rolling to achieve full production targets during the overhaul of the insulation furnace. At the same time, by optimizing the design of the number and position of the heating device and the degassing device, they are arranged on the diagonal line of the cover body, respectively, so as to fully realize the functions of degassing and heating, and the setting of the observation port can be used to observe the situation in the insulation box, and slag removal and slag discharge can also be carried out through the observation port. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1A structural diagram of a mobile heat preservation furnace provided by the utility model;

[0020] Figure 2 A structural diagram of the box body and the cover body provided by the utility model;

[0021] Figure 3 for Figure 2 A half-section view of

[0022] Figure 4 for Figure 3 Sectional view along the AA direction;

[0023] Figure 5 for Figure 3 Cross-sectional view along the BB direction;

[0024] Figure 6 for Figure 3 Cross-sectional view along CC direction;

[0025] Figure 7 A structural diagram of the degassing device provided by the utility model;

[0026] Figure 8 A structural diagram of the heating device provided by the utility model;

[0027] Fig. 9 A structural diagram of the box lining provided by the utility model;

[0028] Fig.10 A half-section view of the box lining provided by the utility model;

[0029] Fig.11 for Fig. 9 Front view of

[0030] Fig.12 for Fig.11 Cross-sectional view along DD direction;

[0031] Fig.13 for Fig.11 Cross-sectional view along EE direction;

[0032] Icons: 1-box body, 1a-aluminum inlet, 1b-observation port, 1c-aluminum outlet, 11-box shell, 12-insulation brick, 13-ground casting layer, 14-box lining, 141-pressure ring, 142-stepped base, 15-box ceramic fiberboard, 2-cover body, 2a-positioning hole, 2b-connecting hole, 21-cover shell, 22-cover ceramic fiberboard, 23-cement casting layer, 3-degassing device, 31-drive motor, 32-transmission box, 33-connecting cylinder, 34-second flange, 35-second positioning cylinder, 36-degassing rotor, 37-air inlet joint, 4-heating device, 41-heating body, 42-first flange, 43-first positioning cylinder, 44-heating rod. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example

[0036] like Figure 1 , Figure 2 As shown, a mobile heat preservation furnace comprises a box body 1 and a cover body 2 arranged at the upper end of the box body 1. An aluminum inlet 1a and an observation port 1b are respectively arranged at the upper ends of both sides of the box body 1. The aluminum inlet 1a and the observation port 1b are arranged on the same horizontal plane and at the same height; an aluminum outlet 1c is arranged at the bottom end of one side of the box body 1. A heating device 4 and a degassing device 3 are arranged at the upper end of the cover body 2. Two heating devices 4 and two degassing devices 3 are respectively arranged, and the heating devices 4 and the degassing devices 3 are respectively arranged on two diagonal lines of the upper end surface of the cover body 2.

[0037] like Figures 1 to 6As shown, the box body 1 includes a box shell 11, a box lining 14, a ground casting layer 13, and an insulation brick 12. The box shell 11 is made of cast iron, and the insulation brick 12 is arranged inside the box shell 11. The bottom inner wall of the box shell 11 is arranged close to the insulation brick 12, and a box ceramic fiberboard 15 is arranged between the side wall of the box shell 11 and the insulation brick 12; the box lining 14 is arranged inside the insulation brick 12, and the box lining 14 is in direct contact with the high-temperature aluminum liquid, so the box lining 14 is made of high-temperature resistant casting material. The side wall of the insulation brick 12 is arranged close to the box lining 14, and a heat-resistant ground casting layer 13 is arranged between the bottom wall of the insulation brick 12 and the box lining 14.

[0038] like Figures 1 to 6 As shown, the cover body 2 includes a cover body shell 21 and a cement casting layer 23. The cover body shell 21 is made of cast iron. The interior of the cover body shell 21 is provided with a cement casting layer 23. The cement casting layer 23 can be made of a low-cement castable of alumina silicate. A cover body ceramic fiberboard 22 is provided between the cover body shell 21 and the cement casting layer 23.

[0039] like Figures 9 to 13 As shown, the aluminum outlet 1c is integrally arranged on the outer wall of the bottom end of the box liner 14, and the aluminum inlet 1a and the observation port 1b are integrally arranged on the outer wall of the upper end of the box liner 14; the aluminum outlet 1c, the aluminum inlet 1a and the observation port 1b are sequentially passed through the insulation brick 12, the box ceramic fiberboard 15 and the box shell 11 to the outside. With this design, the aluminum outlet 1c, the aluminum inlet 1a, the observation port 1b and the box liner 14 are integrally cast, and the aluminum outlet 1c, the aluminum inlet 1a and the observation port 1b can be used to limit and fix the box liner 14, so that it is stably connected and fixed with the insulation brick 12 and the box ceramic fiberboard 15, thereby enhancing the connection strength of the furnace body as a whole.

[0040] like Figures 1 to 13 As shown, a circle of pressure ring 141 is set at the upper end of the box liner 14, the bottom wall of the pressure ring 141 is close to the upper end surface of the insulation brick 12, and the outer wall of the pressure ring 141 is set close to the inner wall of the box ceramic fiber board 15, which can further enhance the connection stability of the box liner 14.

[0041] like Figures 1 to 13 As shown, the outer wall of the aluminum outlet 1c is provided with two sections of stepped platforms 142, and the stepped platforms 142 are arranged close to the insulation bricks 12 and the inner walls of the through holes of the box ceramic fiberboard 15, which can further enhance the connection stability of the box liner 14.

[0042] Furthermore, the aluminum outlet 1c is configured to be U-shaped.

[0043] like Figure 1 , Figure 2 and Figure 8As shown, the heating device 4 includes a heating body 41 and a heating rod 44 . A first flange 42 is provided on the heating body 41 . The first flange 42 and the cover body 2 are connected by bolts. The heating rod 44 is extended into the interior of the box body 1 .

[0044] like Figure 1 , Figure 2 and Figure 7 As shown, the degassing device 3 includes a transmission box 32, a drive motor 31 and a silicon nitride degassing rotor 36. A gear transmission mechanism can be arranged in the transmission box 32. The drive motor 31 is connected to the input shaft of the transmission box 32. The output shaft of the transmission box 32 is connected to the degassing rotor 36. The degassing rotor 36 is arranged inside the box body 1. A connecting cylinder 33 is arranged at the bottom end of the transmission box 32. A second flange 34 is arranged at the bottom end of the connecting cylinder 33. The second flange 34 and the cover body 2 are connected by bolts. The degassing rotor 36 is partially arranged in the connecting cylinder 33.

[0045] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, four positioning holes 2a are arranged on the diagonal lines around the cover body 2, and a plurality of connecting holes 2b are arranged on the circumference of each positioning hole 2a. A first positioning tube 43 is arranged at the bottom end of the first flange 42, and a second positioning tube 35 is arranged at the bottom end of the second flange 34. The first positioning tube 43 and the second positioning tube 35 are respectively inserted into the positioning holes 2a, and then the through holes on the first flange 42 and the connecting holes 2b are made to face each other, and the through holes on the second flange 34 and the connecting holes 2b are made to face each other, and then the bolts can be inserted to connect the heating device 4 and the degassing device 3 to the cover body 2.

[0046] The utility model innovatively designs a mobile insulation furnace that can be used in a mobile manner. It can meet the production of the rolling mill synchronously during the overhaul of other insulation furnaces, laying a solid foundation for the overhaul of the insulation furnace in the later stage of casting and rolling, and stopping the furnace without stopping the rolling mill, and helping the casting and rolling to achieve full production targets during the overhaul of the insulation furnace. At the same time, by optimizing the design of the number and position of the heating device 4 and the degassing device 3, they are arranged on the diagonal line of the cover body 2, respectively, so as to fully realize the functions of degassing and heating, and the setting of the observation port 1b can be used to observe the situation in the insulation box, and slag removal and slag discharge can also be carried out through the observation port 1b.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mobile heat preservation furnace, comprising a box body and a cover body arranged at the upper end of the box body, characterized in that : The upper ends of both sides of the box body are respectively provided with an aluminum inlet and an observation port, and the bottom end of one side of the box body is provided with an aluminum outlet; The upper end of the cover body is provided with a heating device and a degassing device, two of the heating devices and two of the degassing devices are provided respectively, and the heating devices and the degassing devices are respectively arranged on two diagonal lines of the upper end surface of the cover body.

2. The mobile holding furnace according to claim 1, characterized in that: The box body includes a box shell, a box lining, a ground casting layer, and insulation bricks. The insulation bricks are arranged inside the box shell, the bottom inner wall of the box shell is arranged closely to the insulation bricks, and a box ceramic fiberboard is arranged between the side wall of the box shell and the insulation bricks; the box lining is arranged inside the insulation bricks, the side wall of the insulation bricks is arranged closely to the box lining, and the ground casting layer is arranged between the bottom wall of the insulation bricks and the box lining.

3. The mobile holding furnace according to claim 2, characterized in that: The cover body comprises a cover body outer shell and a cement casting layer. The cement casting layer is arranged inside the cover body outer shell, and a cover body ceramic fiberboard is arranged between the cover body outer shell and the cement casting layer.

4. The mobile holding furnace according to claim 3, characterized in that: The aluminum outlet is integrally arranged on the bottom outer wall of the box lining, and the aluminum inlet and the observation port are integrally arranged on the upper outer wall of the box lining; the aluminum outlet, aluminum inlet and the observation port pass through the insulation bricks, the box ceramic fiberboard and the box shell to the outside in sequence.

5. The mobile holding furnace according to claim 4, characterized in that: A circle of pressure ring is arranged at the upper end of the box inner lining, the bottom wall of the pressure ring is in close contact with the upper end surface of the insulation brick, and the outer side wall of the pressure ring is in close contact with the inner wall of the box ceramic fiberboard.

6. The mobile holding furnace according to claim 4, characterized in that: The outer wall of the aluminum outlet is provided with two stepped platforms, and the stepped platforms are arranged closely against the insulation bricks and the inner wall of the ceramic fiberboard of the box body.

7. The mobile holding furnace according to claim 6, characterized in that: The aluminum outlet is arranged in a U shape.

8. The mobile holding furnace according to claim 1, characterized in that: The heating device comprises a heating body and a heating rod. The heating body is provided with a first flange. The first flange and the cover are connected by bolts. The heating rod is extended into the interior of the box.

9. The mobile holding furnace according to claim 8, characterized in that: The degassing device includes a transmission box, a drive motor and a degassing rotor. The drive motor is connected to the input shaft of the transmission box, and the output shaft of the transmission box is connected to the degassing rotor. The degassing rotor extends into the interior of the box. A connecting tube is provided at the bottom end of the transmission box, and a second flange is provided at the bottom end of the connecting tube. The second flange and the cover body are connected by bolts.

10. The mobile holding furnace according to claim 9, characterized in that: Four positioning holes are arranged around the cover body, and a plurality of connecting holes are arranged on the circumference of each positioning hole. A first positioning tube is arranged at the bottom end of the first flange, and a second positioning tube is arranged at the bottom end of the second flange. The first positioning tube and the second positioning tube are respectively inserted into the positioning holes.

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