Heat preservation suite of crucible furnace

Abstract

A steel wire rope of a heat preservation assembly lifter (3) is connected to the central point of a lifting beam (4), the lifting beam (4) is connected with a heat preservation cover (8) through the steel wire rope, and two through holes are formed in the upper portion of the heat preservation cover (8). A heat preservation cover (8) capable of blocking an opening in the upper portion of the crucible furnace and an auxiliary heating device (5) integrated on the heat preservation cover (8) are additionally arranged on an original crucible furnace, air in a crucible furnace body (1) is continuously heated by means of an electric heating grating (5-2) in the auxiliary heating device (5), and heat loss is effectively prevented while the temperature of the crucible furnace body (1) is rapidly increased; toxic waste gas generated during metal smelting can be covered in the crucible furnace body (1) until the heat preservation cover (8) is opened, can be dissipated and then is pumped away by a waste gas absorption device of the crucible furnace body (1), heat dissipation of the crucible furnace can be effectively prevented, and the energy utilization rate of the crucible furnace can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dry heat preservation devices, in particular to a crucible furnace heat preservation kit. Background Art

[0002] The crucible furnace is mainly used to heat the crucible to melt the metal in it. The current crucible furnace has an opening on the top and the crucible furnace itself is not equipped with a heat preservation device, which causes the crucible furnace to continuously lose heat when in use. This greatly prolongs the melting time of the metal, causing the crucible furnace to consume a lot of extra energy when in use, and does not save energy and reduce emissions very well.

[0003] At present, the utility model with patent number CN211651195U discloses a large optical glass crucible furnace insulation device, wherein the bottom four corners of the crucible furnace are fixedly connected with support legs, the top of the crucible furnace is provided with a material hole, and the crucible furnace is connected with a purification and insulation mechanism, which includes an insulation chamber, an air outlet pipe, a booster fan, a purifier and a plurality of air inlets, and the insulation chamber with a U-shaped cross section is provided in the crucible furnace, and a plurality of air inlets are provided on the side of the insulation chamber close to the material hole, the air outlet pipe is fixedly connected to the bottom of the insulation chamber, the booster fan is installed in the air outlet pipe, and the end of the booster fan away from the insulation chamber is the output end, and the purifier is fixedly connected to the end of the air outlet pipe away from the crucible furnace. The utility model can recycle the high-temperature exhaust gas in the crucible furnace, and use the high-temperature exhaust gas to insulate the crucible furnace, the temperature of the crucible furnace is not easy to dissipate, and the thermal efficiency is high. However, the application mainly adopts passive heat preservation methods such as heat preservation sleeve and heat preservation cavity for heat preservation. When in use, the crucible will still lose heat from the upper opening, so it cannot effectively save energy and reduce emissions. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the utility model provides a crucible furnace insulation kit, which can effectively prevent the heat loss of the crucible furnace and effectively improve the energy utilization rate of the crucible furnace.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a crucible furnace insulation kit, comprising a crucible furnace body, an insulation component lifting frame, an insulation component elevator, a lifting beam, an auxiliary heating device, an insulation shell, an electric heating grille, a fan, a connection port one, a connection port two, a heat pipe one, a heat pipe two and an insulation cover, wherein the insulation component elevator is installed directly above the furnace mouth of the crucible furnace body through the insulation component lifting frame, the steel wire rope of the insulation component elevator is connected to the center point of the lifting beam, the lifting beam is connected to the insulation cover through the steel wire rope, two through holes are opened on the upper part of the insulation cover, the auxiliary heating device is fixedly installed between the two through holes, the connection port one and the connection port two of the auxiliary heating device are connected to the two through holes opened on the upper part of the insulation cover through the heat pipe one and the heat pipe two respectively; a cleaning window is opened on the side of the auxiliary heating device; the outside of the crucible furnace body is wrapped with alumina ceramic fiber or graphite felt; and more than ten exhaust holes are opened at equal intervals on the side of the insulation cover.

[0006] In addition, the crucible furnace insulation kit according to the above embodiment of the utility model may also have the following additional technical features:

[0007] As a further improvement scheme of the utility model, the auxiliary heating device includes an insulation shell, an electric heating grille, a fan, connection port one and connection port two. Through holes are respectively provided on both sides of the insulation shell to install connection port one and connection port two. Connection port one is connected to heat pipe one, and connection port two is connected to heat pipe two. The fan and the electric heating grille are respectively installed inside the insulation shell through brackets. The air inlet of the fan is connected to connection port one, the exhaust port of the fan is directly opposite to the electric heating grille, and the electric heating grille is connected close to connection port two.

[0008] As a further improvement of the present invention, the driving motor of the fan is installed outside the heat-insulating shell, and the driving motor is connected to the fan through a rotating shaft transmission.

[0009] As a further improvement of the present invention, the built-in winch of the insulation component lift is equipped with a brake pad, and the brake pad is controlled by a pull rod installed on the insulation component lift frame through a steel wire rope.

[0010] As a further improvement of the present invention, the heat pipe 1 and the heat pipe 2 are externally wrapped with alumina ceramic fiber or graphite felt.

[0011] The electric heating grille and the fan inside the heat-insulating shell are separated by a filter plate, and the filter plate is a steel filter screen.

[0012] Through the above scheme, the utility model has at least the following advantages: compared with the conventional crucible furnace, by adding a heat-insulating cover that can seal the upper opening of the crucible furnace and an auxiliary heating device integrated on the heat-insulating cover to the original crucible furnace, the air inside the crucible furnace body is continuously heated by the electric heating grid in the auxiliary heating device, so that the crucible furnace body is quickly heated while effectively preventing heat loss. The toxic waste gas generated during the smelting of metal will be trapped in the crucible furnace body until the heat-insulating cover is opened and will not be dissipated, and then it will be drawn away by the waste gas absorption device of the crucible furnace body, which can effectively prevent the heat loss of the crucible furnace and effectively improve the energy utilization rate of the crucible furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the crucible furnace insulation kit;

[0014] Figure 2 It is a cross-sectional view of the auxiliary heating device of the crucible furnace insulation kit;

[0015] In the figure: 1. crucible furnace body, 2. insulation component lifting frame, 3. insulation component lift, 4. lifting beam, 5. auxiliary heating device, 5-1. insulation shell, 5-2. electric heating grid, 5-3. fan, 5-4. connection port 1, 5-5. connection port 2, 6. heat pipe 1, 7. heat pipe 2, 8. insulation cover. DETAILED DESCRIPTION

[0016] The crucible furnace insulation kit of the present invention is described below in conjunction with the accompanying drawings.

[0017] In the first embodiment of the present application, Figure 1 As shown, the crucible furnace insulation kit (hereinafter referred to as "this patent") includes a crucible furnace body 1, an insulation component lifting frame 2, an insulation component elevator 3, a lifting beam 4, an auxiliary heating device 5, a heat pipe 1 6, a heat pipe 2 7 and an insulation cover 8. The insulation component elevator 3 is installed directly above the furnace mouth of the crucible furnace body 1 through the insulation component lifting frame 2, the steel wire rope of the insulation component elevator 3 is connected to the center point of the lifting beam 4, the lifting beam 4 is connected to the insulation cover 8 through the steel wire rope, two through holes are opened on the upper part of the insulation cover 8, the auxiliary heating device 5 is fixedly installed between the two through holes, and the connection port 1 5-4 and the auxiliary heating device 5 The connecting port 2 5-5 is connected to the two through holes opened on the upper part of the insulation cover 8 through the heat pipe 1 6 and the heat pipe 2 7 respectively; a cleaning window is opened on the side of the auxiliary heating device 5. In actual use, some particulate matter contained in the exhaust gas will be deposited in the insulation shell 5-1 and attached to the surface of the electric heating grille 5-2 and the fan 5-3. Therefore, a cleaning window is opened on the side of the auxiliary heating device 5 to facilitate subsequent cleaning; the outside of the crucible furnace body 1 is wrapped with alumina ceramic fiber or graphite felt; more than ten exhaust holes are opened at equal intervals on the side of the insulation cover 8 to discharge the exhaust gas generated by heating, which is convenient for the exhaust gas recovery component equipped with the crucible furnace body 1 to handle.

[0018] The utility model number of the large optical glass crucible furnace insulation device CN211651195U (hereinafter referred to as "this patent") is a passive insulation method of an insulation sleeve and an insulation cavity. During use, the crucible will still continue to lose heat from the upper opening, so it cannot save energy and reduce emissions very well. This patent provides insulation by adding alumina ceramic fiber or graphite felt to the outside of the crucible furnace body 1, and at the same time adds an insulation cover 8 and an auxiliary heating device 5 for further heating the air in the crucible furnace to the upper opening of the crucible furnace body 1, which can effectively prevent the loss of heat inside the crucible and improve energy utilization efficiency.

[0019] The structure of the second embodiment is basically the same as that of the first embodiment, except that Figure 2 As shown, the auxiliary heating device 5 includes a heat preservation shell 5-1, an electric heating grille 5-2, a fan 5-3, a connection port 1 5-4 and a connection port 2 5-5. Through holes are respectively provided on both sides of the heat preservation shell 5-1 to install the connection port 1 5-4 and the connection port 2 5-5. The connection port 1 5-4 is connected to the heat pipe 1 6, and the connection port 2 5-5 is connected to the heat pipe 2 7. The fan 5-3 and the electric heating grille 5-2 are respectively installed in the heat preservation shell 5-1 through brackets. The air inlet of the fan 5-3 is connected to the connection port 1 5-4, and the exhaust port of the fan 5-3 is directly opposite to the electric heating grille 5-2, and the electric heating grille 5-2 is connected close to the connection port 2 5-5.

[0020] In order to further optimize the working efficiency of the present application and prevent high temperature from damaging the drive motor, the drive motor of the fan 5-3 is installed outside the insulation shell 5-1, and the drive motor is connected to the fan 5-3 through a rotating shaft transmission. In order to ensure safety, the built-in winch of the insulation component elevator 3 is equipped with a brake pad, and the brake pad is controlled by a pull rod installed on the insulation component lifting frame 2 through a wire rope. In order to further improve the thermal insulation performance, the heat pipe 1 6 and the heat pipe 2 7 are wrapped with alumina ceramic fiber or graphite felt. In order to further reduce the difficulty of cleaning, the electric heating grille 5-2 and the fan 5-3 inside the insulation shell 5-1 are separated by a filter plate, and the filter plate is a steel filter.

[0021] When in use, the crucible furnace insulation kit is installed on the crucible furnace body 1, and the equipment can be put into use.

[0022] In summary, the crucible furnace insulation kit of the utility model embodiment adds an insulation cover 8 that can seal the upper opening of the crucible furnace and an auxiliary heating device 5 integrated on the insulation cover 8 to the original crucible furnace, and continuously heats the air inside the crucible furnace body 1 with the help of the electric heating grid 5-2 in the auxiliary heating device 5, so that the crucible furnace body 1 can be quickly heated while effectively preventing heat loss. The toxic exhaust gas generated during the smelting of metal will be trapped in the crucible furnace body 1 until the insulation cover 8 is opened and will not be dissipated, and then it will be drawn away by the exhaust gas absorption device of the crucible furnace body 1, which can effectively prevent the heat loss of the crucible furnace and effectively improve the energy utilization rate of the crucible furnace.

[0023] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A crucible furnace insulation kit, comprising a crucible furnace body (1), characterized in that: A heat preservation component lift (3) is installed directly above the furnace mouth of the crucible furnace body (1) through a heat preservation component lift frame (2); a steel wire rope of the heat preservation component lift (3) is connected to the center point of a lift beam (4); the lift beam (4) is connected to a heat preservation cover (8) through a steel wire rope; two through holes are provided on the upper part of the heat preservation cover (8); an auxiliary heating device (5) is fixedly installed between the two through holes; a connection port 1 (5-4) and a connection port 2 (5-5) of the auxiliary heating device (5) are connected to the two through holes provided on the upper part of the heat preservation cover (8) through a heat pipe 1 (6) and a heat pipe 2 (7) respectively; a cleaning window is provided on the side of the auxiliary heating device (5); the outside of the crucible furnace body (1) is wrapped with alumina ceramic fiber or graphite felt; and more than ten exhaust holes are provided on the side of the heat preservation cover (8) at equal intervals.

2. The crucible furnace insulation kit according to claim 1, characterized in that: The auxiliary heating device (5) comprises a heat-insulating shell (5-1), an electric heating grille (5-2), a fan (5-3), a connection port 1 (5-4) and a connection port 2 (5-5). Through holes are respectively provided on both sides of the heat-insulating shell (5-1) to install the connection port 1 (5-4) and the connection port 2 (5-5). The connection port 1 (5-4) is connected to the heat pipe 1 (6), and the connection port 2 (5-5) is connected to the heat pipe 2 (7). The fan (5-3) and the electric heating grille (5-2) are respectively installed in the heat-insulating shell (5-1) through a bracket. The air inlet of the fan (5-3) is connected to the connection port 1 (5-4), the exhaust port of the fan (5-3) is directly opposite to the electric heating grille (5-2), and the electric heating grille (5-2) is connected to the connection port 2 (5-5).

3. The crucible furnace insulation kit according to claim 2, characterized in that: The driving motor of the fan (5-3) is installed outside the heat-insulating shell (5-1), and the driving motor is connected to the fan (5-3) via a rotating shaft.

4. The crucible furnace insulation kit according to claim 1, characterized in that: The built-in winch of the insulation component elevator (3) is equipped with a brake pad, and the brake pad is controlled by a pull rod installed on the insulation component elevator frame (2) through a steel wire rope.

5. The crucible furnace insulation kit according to claim 4, characterized in that: The heat pipe 1 (6) and the heat pipe 2 (7) are externally wrapped with alumina ceramic fibers or graphite felt.

6. The crucible furnace insulation kit according to claim 2, characterized in that: The electric heating grid (5-2) and the fan (5-3) inside the heat-insulating shell (5-1) are separated by a filter plate, and the filter plate is a steel filter screen.

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