Heating structure for connecting holding furnace with launder cover

Abstract

The utility model relates to the technical field of connecting launder, and discloses a holding furnace connecting launder cover heating structure which comprises a launder body, a launder cover body detachably installed above the launder body, and a heating mechanism used for heating the launder body and the launder cover body and comprising a first heating groove and a second heating groove. The first heating groove and the second heating groove are formed in the launder body and the launder cover body. The two groups of connecting pipes at the bottom end of the chute cover body are movably connected with the two groups of connecting grooves at the top end of the chute body, so that the communication of the first heating groove and the second heating groove can be realized, and high-temperature hot oil can be guided into the second heating groove through the oil inlet pipe and is guided into the first heating groove through the connecting pipes; furthermore, the launder cover body and the launder body can be heated at the same time, so that the problem that the temperature of the melt is reduced due to heat loss in the existing melt transfer process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting launders, in particular to a heating structure for the cover of the connecting launder of a holding furnace. Background Technique

[0002] The connecting launder is a connecting piece between a refining and degassing furnace and a holding furnace. The connecting launder is used to facilitate the transfer of metal during the smelting process. However, the traditional connecting launder is usually open, which is likely to cause heat loss of the melt when the melt is transferred from the holding furnace to the refining and degassing furnace, resulting in a temperature decrease. When the melt is transferred to the refining and degassing furnace, the melt needs to be reheated to the required temperature, thus increasing energy consumption.

[0003] After retrieval, the publication number is CN212747347U, which discloses a heating structure for the cover of the connecting launder between a refining and degassing furnace and a holding furnace. By using the installed launder cover, it is beneficial to reduce the contact amount of the transferred melt with air, thus avoiding the reduction of product quality caused by the oxidation reaction of the melt. At the same time, by using the installed electric heating tube, it is avoided that the temperature of the melt decreases due to heat loss during the transfer of the melt, and it is avoided to use the refining and degassing furnace to reheat the melt, thus reducing energy consumption.

[0004] In the process of implementing the present utility model, the inventor found that at least the following problems in the prior art have not been solved. In the above case, the melt transferred in the connecting launder is heated by an electric heating tube, but during use, the melt also dissipates heat outward through the connecting launder, resulting in a decrease in the temperature of the melt in the connecting launder.

[0005] Therefore, we propose a heating structure for the cover of the connecting launder of a holding furnace, which can solve the above problems. Content of the Utility Model

[0006] The purpose of the present utility model is to provide a heating structure for the cover of the connecting launder of a holding furnace, which solves the problems raised in the background technique.

[0007] To achieve the above object, the utility model provides the following technical solutions: a temperature-raising structure for connecting a tundish cover, including a tundish body, on which a cover body is detachably installed above. A heating mechanism is used for heating the tundish body and the cover body. The heating mechanism includes a first heating tank and a second heating tank, which are arranged inside the tundish body and the cover body respectively. On both sides of the inner wall at the bottom of the second heating tank, connecting pipes are vertically installed through. On both sides of the inner wall at the top of the first heating tank, connecting grooves are vertically opened. The two connecting pipes at the bottom of the cover body are movably connected with the two connecting grooves at the top of the tundish body. In the middle of the upper surface of the cover body, an oil inlet pipe is fixedly connected. The bottom end of the oil inlet pipe communicates with the inside of the second heating tank, and the top end of the oil inlet pipe communicates with a swivel joint. At the bottom end of one side of the tundish body, an oil discharge pipe is fixedly installed, and the oil inlet end of the oil discharge pipe communicates with the bottom end inside the first heating tank.

[0008] As an alternative embodiment of the technical solution of this application, two sealing blocks are fixedly installed at the bottom end of the cover body, and two sealing grooves are opened at the top end of the tundish body. The two sealing blocks at the bottom end of the cover body are respectively movably connected with the two sealing grooves at the top end of the tundish body. The two connecting pipes respectively penetrate through the middle parts of the two sealing blocks and are fixedly connected with the sealing blocks. The two sealing grooves are respectively communicated with the two connecting grooves.

[0009] As an alternative embodiment of the technical solution of this application, at the front, rear, left and right ends of both sides of the tundish body, second fixing holes are opened, and at the front, rear, left and right ends of both sides of the cover body, first fixing holes are opened. The cover body and the tundish body are fixedly connected by bolts passing through the first fixing holes and the second fixing holes.

[0010] As an alternative embodiment of the technical solution of this application, an annular sealing gasket is adhesively bonded to the inner wall at the bottom end of the sealing groove, and the bottom end of the sealing block is in contact with the sealing gasket.

[0011] As an alternative embodiment of the technical solution of this application, a sealing ring is adhesively bonded to the outer side of the connecting pipe, and the sealing ring is in contact with the inner wall of the connecting groove. Two handles are fixedly installed on the outer side of the cover body, and the two handles are respectively located on both sides of the upper surface of the cover body.

[0012] As an alternative embodiment of the technical solution of this application, a support rod is vertically and fixedly installed inside the first heating tank, and the support rods are evenly distributed at the bottom end inside the first heating tank.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows. By the movable connection of two groups of connecting pipes at the bottom end of the trough cover body and two groups of connecting grooves at the top end of the flow trough body, the communication between the first heating trough and the second heating trough can be realized. Through the oil inlet pipe, high-temperature hot oil can be introduced into the second heating trough and then into the first heating trough through the connecting pipe. Further, the trough cover body and the flow trough body can be heated simultaneously, thus solving the problem that the heat loss during the existing melt transfer process causes the temperature of the melt to decrease. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] By reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings, other features, objects, and advantages of the present utility model will become more apparent:

[0015] Figure 1 is the front view of a heat preservation furnace connecting flow trough cover heating structure of the present utility model;

[0016] Figure 2 is the schematic diagram of the trough cover body of a heat preservation furnace connecting flow trough cover heating structure of the present utility model.

[0017] In the figure: 1. Flow trough body; 11. Trough cover body; 12. First heating trough; 13. Second heating trough; 14. Connecting pipe; 15. Connecting groove; 16. Sealing block; 17. Sealing groove; 18. Oil inlet pipe; 19. Adapter; 2. Sealing ring; 21. Sealing gasket; 22. First fixing hole; 23. Second fixing hole; 24. Bolt; 25. Handle; 26. Drain pipe; 27. Support rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Please refer to Figure 1 - Figure 2 , the present utility model provides a technical solution: a heat preservation furnace connecting flow trough cover heating structure, including a flow trough body 1, and a trough cover body 11 is detachably installed above the flow trough body 1; Heating mechanism: used for heating the flow trough body 1 and the trough cover body 11. The heating mechanism includes a first heating trough 12 and a second heating trough 13, which are opened inside the flow trough body 1 and the trough cover body 11. On both sides of the inner wall of the bottom end of the second heating trough 13, two groups of connecting pipes 14 are vertically penetrated and installed. On both sides of the inner wall of the top end of the first heating trough 12, two groups of connecting grooves 15 are vertically opened. Two groups of connecting pipes 14 at the bottom end of the trough cover body 11 are movably connected with two groups of connecting grooves 15 at the top end of the flow trough body 1. In the middle of the upper surface of the trough cover body 11, an oil inlet pipe 18 is fixedly connected. The bottom end of the oil inlet pipe 18 communicates with the inside of the second heating trough 13. The top end of the oil inlet pipe 18 is communicated with an adapter 19. At the bottom end of one side of the flow trough body 1, a drain pipe 26 is fixedly installed. The oil inlet end of the drain pipe 26 communicates with the bottom end inside the first heating trough 12. Inside the first heating trough 12, a support rod 27 is vertically fixedly installed, and the support rods 27 are evenly distributed at the bottom end inside the first heating trough 12.

[0019] In this technical solution, the tank cover body 11 is placed on top of the flow tank body 1, and the two sets of connecting pipes 14 at the bottom end of the tank cover body 11 are inserted into the two sets of connecting slots 15 at the top end of the flow tank body 1, so as to realize the connection between the first heating tank 12 and the second heating tank 13. The corresponding oil pump outlet pipe is connected to the adapter 19 at the top end of the inlet pipe 18. The oil pump is controlled by the corresponding controller to pump the high-temperature hot oil at a specified temperature into the second heating tank 13, and then into the first heating tank 12 through the two sets of connecting pipes 14. Further, the tank cover body 11 and the flow tank body 1 can be heated simultaneously, thus solving the problem that the heat loss during the existing melt transfer process causes the melt temperature to decrease. The hot oil in the first heating tank 12 can be discharged through the drain pipe 26, so as to realize the circulation of the hot oil inside the first heating tank 12 and the second heating tank 13.

[0020] In this embodiment, two sets of sealing blocks 16 are fixedly installed at the bottom end of the tank cover body 11. The two sets of connecting pipes 14 respectively penetrate through the middle parts of the two sets of sealing blocks 16 and are fixedly connected to the sealing blocks 16. Two sets of sealing grooves 17 are opened at the top end of the flow tank body 1. The two sets of sealing grooves 17 are respectively communicated with the two sets of connecting slots 15. The two sets of sealing blocks 16 at the bottom end of the tank cover body 11 are respectively movably connected with the two sets of sealing grooves 17 at the top end of the flow tank body 1. A sealing ring 2 is adhesively bonded to the outer side of the connecting pipe 14, and the sealing ring 2 fits against the inner wall of the connecting slot 15. An annular sealing gasket 21 is adhesively bonded to the bottom inner wall of the sealing groove 17, and the bottom end of the sealing block 16 fits against the sealing gasket 21.

[0021] In this technical solution, when the two sets of connecting pipes 14 at the bottom end of the tank cover body 11 are inserted into the two sets of connecting slots 15 at the top end of the flow tank body 1, the two sets of sealing blocks 16 at the bottom end of the tank cover body 11 can be inserted into the sealing grooves 17 communicated with the top ends of the connecting slots 15. Through the sealing gasket 21 at the bottom end of the sealing groove 17, the connecting slots 15 can be effectively sealed. By adhesively bonding a sealing ring 2 to the outer side of the connecting pipe 14, the connection sealing performance between the connecting pipe 14 and the connecting slot 15 can be improved.

[0022] In this embodiment, second fixing holes 23 are opened at the front and rear ends on both sides of the flow tank body 1, and first fixing holes 22 are opened at the front and rear ends on both sides of the tank cover body 11. The tank cover body 11 and the flow tank body 1 are fixedly connected by bolts 24 passing through the first fixing holes 22 and the second fixing holes 23. Two sets of handles 25 are fixedly installed on the outer side of the tank cover body 11, and the two sets of handles 25 are respectively placed on both sides of the upper surface of the tank cover body 11.

[0023] In this technical solution, when the two sets of connecting pipes 14 at the bottom end of the tank cover body 11 are inserted into the two sets of connecting slots 15 at the top end of the flow tank body 1, the first fixing holes 22 on both sides of the tank cover body 11 are aligned with the second fixing holes 23 on both sides of the flow tank body 1. By passing bolts 24 through the first fixing holes 22 and the second fixing holes 23, the connection stability between the tank cover body 11 and the flow tank body 1 can be improved.

[0024] When using a heat-insulating furnace connecting flow tank cover heating structure, place the tank cover body 11 on top of the flow tank body 1, and insert the two sets of connecting pipes 14 at the bottom end of the tank cover body 11 into the two sets of connecting slots 15 at the top end of the flow tank body 1, which can achieve the connection between the first heating tank 12 and the second heating tank 13. At the same time, the two sets of sealing blocks 16 at the bottom end of the tank cover body 11 can be inserted into the sealing slots 17 connected to the top end of the connecting slot 15. Through the sealing gasket 21 at the bottom end of the sealing slot 17, the connecting slot 15 can be effectively sealed. By passing bolts 24 through the first fixing holes 22 and the second fixing holes 23, the connection stability between the tank cover body 11 and the flow tank body 1 can be improved. Connect the corresponding oil pump outlet pipe to the adapter 19 at the top end of the inlet pipe 18, and control the oil pump to work through the corresponding controller. Introduce high-temperature hot oil at a specified temperature into the second heating tank 13, and then introduce it into the first heating tank 12 through the two sets of connecting pipes 14. Further, the tank cover body 11 and the flow tank body 1 can be heated simultaneously, thereby solving the problem of heat loss during the existing melt transfer process, resulting in a decrease in the melt temperature. The hot oil in the first heating tank 12 can be discharged through the drain pipe 26, thereby realizing the circulation of the hot oil inside the first heating tank 12 and the second heating tank 13.

Claims

1. A heating structure for connecting a tundish cover of a heat-insulating furnace, comprising a tundish body (1), characterized in that, A chute cover body (11) is detachably installed above the chute body (1); Heating mechanism: used for heating the chute body (1) and the chute cover body (11). The heating mechanism includes a first heating tank (12) and a second heating tank (13). The first heating tank (12) and the second heating tank (13) are opened inside the chute body (1) and the chute cover body (11). On both sides of the inner wall of the bottom end of the second heating tank (13), connecting pipes (14) are vertically penetrated and installed. On both sides of the inner wall of the top end of the first heating tank (12), connecting grooves (15) are vertically opened. The two connecting pipes (14) at the bottom end of the chute cover body (11) are movably connected to the two connecting grooves (15) at the top end of the chute body (1). In the middle of the upper surface of the chute cover body (11), an oil inlet pipe (18) is fixedly connected. The bottom end of the oil inlet pipe (18) communicates with the inside of the second heating tank (13). The top end of the oil inlet pipe (18) is communicated with a swivel joint (19). At the bottom end of one side of the chute body (1), an oil discharge pipe (26) is fixedly installed. The oil inlet end of the oil discharge pipe (26) communicates with the bottom end inside the first heating tank (12).

2. The heating structure of the connecting launder cover of a heat preservation furnace according to claim 1, characterized in that: Two sealing blocks (16) are fixedly installed at the bottom end of the chute cover body (11). Two sealing grooves (17) are opened at the top end of the chute body (1). The two sealing blocks (16) at the bottom end of the chute cover body (11) are respectively movably connected to the two sealing grooves (17) at the top end of the chute body (1). The two connecting pipes (14) respectively penetrate through the middle parts of the two sealing blocks (16) and are fixedly connected to the sealing blocks (16). The two sealing grooves (17) are respectively communicated with the two connecting grooves (15).

3. The heating structure of the connecting launder cover of a holding furnace according to claim 2, wherein: Second fixing holes (23) are opened at the front, rear, left and right ends on both sides of the chute body (1). First fixing holes (22) are opened at the front, rear, left and right ends on both sides of the chute cover body (11). The chute cover body (11) and the chute body (1) are fixedly connected by bolts (24) passing through the first fixing holes (22) and the second fixing holes (23).

4. A heating structure for connecting a tundish cover of a soaking pit according to claim 2, characterized in that: An annular sealing gasket (21) is adhesively bonded to the inner wall of the bottom end of the sealing groove (17). The bottom end of the sealing block (16) is in contact with the sealing gasket (21).

5. A heating structure for connecting a tundish cover of a heat preservation furnace according to claim 1, characterized in that: A sealing ring (2) is adhesively bonded to the outer side of the connecting pipe (14). The sealing ring (2) is in contact with the inner wall of the connecting groove (15).

6. The heating structure of the connecting launder cover of a holding furnace according to claim 1, characterized in that: Two handles (25) are fixedly installed on the outer side of the chute cover body (11). The two handles (25) are respectively placed on both sides of the upper surface of the chute cover body (11).

7. The heating structure of the connecting launder cover of a holding furnace according to claim 1, characterized in that: A support rod (27) is vertically and fixedly installed inside the first heating tank (12). The support rods (27) are evenly distributed at the bottom end inside the first heating tank (12).

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