Tundish submersed nozzle baking device

Abstract

The utility model relates to the field of submersed nozzle baking, in particular to a tundish submersed nozzle baking device which comprises a combustion assembly. A heating cavity is formed in the heating box body, a heat insulation limiting groove is formed in the top of the heating cavity, and sliding grooves are symmetrically formed in the inner wall of the heating cavity; the heat preservation end cover is arranged above the heating box body; the heat insulation plate is arranged in the heat insulation limiting groove; the placement assembly comprises a placement block, placement pipe sleeves, sliding blocks and third heat dissipation holes, the sliding blocks are arranged on the two sides of the placement block and slide in the sliding grooves, and the multiple placement pipe sleeves are arranged on the placement block in an arrayed and penetrating mode; a lifting assembly; the heat insulator is lifted. The liftable placing assembly is arranged in the heating cavity of the heating box body, so that the placing assembly is located in the center of the heating cavity, the submersed nozzles on the placing assembly are baked in all directions, and the phenomenon that the baking temperature is not uniform is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of submerged entry nozzle baking, especially to a tundish submerged entry nozzle baking device. BACKGROUND

[0002] In the continuous casting process of the steel mill, the purity of the molten steel is ensured by using the submerged entry nozzle to isolate air during the molten steel flowing into the crystallizer.

[0003] Before the existing submerged entry nozzle is used, it needs to be pre-baked and heated to avoid solidification when the molten steel flows through the submerged entry nozzle with a lower temperature. The existing submerged entry nozzle baking usually uses a self-made baking oven. The heating port of the self-made baking oven is usually arranged at the bottom of the baking oven, the loading and unloading port of the self-made baking oven is usually arranged at the top of the baking oven, and the component for clamping and placing the submerged entry nozzle in the self-made baking oven is usually arranged close to the loading and unloading port to facilitate personnel to take and place the submerged entry nozzle.

[0004] However, the existing baking oven usually uses a direct heating method, that is, the submerged entry nozzle is placed in the self-made baking oven for direct heating. When the self-made baking oven does not reach the expected baking temperature, the heating device in the self-made baking oven has already started to heat the submerged entry nozzle in the self-made baking oven. When the temperature reaches the expected baking temperature, the heat is extended to the top of the submerged entry nozzle to meet the heating condition of the top of the submerged entry nozzle. However, the bottom of the submerged entry nozzle has been heated for a long time, which causes uneven heating of the top and bottom of the submerged entry nozzle, thereby reducing the service life of the submerged entry nozzle. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a tundish submerged entry nozzle baking device, through setting up the liftable placing assembly in the heating cavity of the heating box body, the placing assembly is located at the center of the heating cavity, so that the plurality of submerged entry nozzles on the placing assembly is subjected to all -round baking, avoids appearing the baking temperature uneven phenomenon, promotes the service life of submerged entry nozzle.

[0006] To achieve the above-mentioned purpose, the utility model provides a tundish submerged entry nozzle baking device, comprising

[0007] The combustion assembly comprises a combustion box body and a heat supply pipeline, one end of the heat supply pipeline is communicated with the combustion box body;

[0008] A heating box body is arranged on one side of the combustion assembly, a heating cavity with an open top is arranged in the heating box body, the other end of the heat pipe extends into the heating cavity, and the other end of the heat pipe is close to the bottom of the heating cavity, a heat insulation limiting groove is arranged at the top of the heating cavity, a plurality of positioning grooves are arranged in the heat insulation limiting groove, and a first fixing hole is arranged on the positioning groove.

[0009] A heat preservation end cover is arranged above the heating box body, the heat preservation end cover is provided with a containing cavity, and a plurality of symmetrical first lifting holes are arranged at the top of the heat preservation end cover, and the first lifting holes are communicated with the containing cavity.

[0010] A heat insulation plate is arranged on both sides of the heat insulation limiting groove, the positioning blocks are matched with the positioning grooves, a plurality of pipe perforations, second lifting holes, first heat dissipation holes and second heat dissipation holes are arranged on the heat insulation plate, a plurality of second lifting holes are symmetrically arranged on the heat insulation plate, and pull rod threaded holes are arranged at the four corners of the heat insulation plate, and the second lifting holes are located directly below the first lifting holes.

[0011] A placing assembly includes a placing block, a placing pipe sleeve, a sliding block and a third heat dissipation hole, the sliding blocks are arranged on both sides of the placing block, the sliding blocks slide in the sliding grooves, a plurality of placing pipe sleeves are arranged on the placing block in an array, a limiting conical groove is arranged in the placing pipe sleeve, and the third heat dissipation hole is arranged between adjacent placing pipe sleeves, and the pipe perforation is located directly above the placing pipe sleeve.

[0012] A lifting assembly is connected with the top surface of the placing block through the first lifting hole and the second lifting hole at one end.

[0013] A lifting heat insulation piece is arranged on the lifting assembly, and the lifting heat insulation piece slides up and down in the first lifting hole, a lifting limiting convex ring is arranged on the lifting heat insulation piece, and the lifting limiting convex ring is matched with the first lifting hole.

[0014] Further, the inner walls of the heating cavity and the containing cavity are provided with an auxiliary heat preservation layer.

[0015] Further, the heat insulation plate is made of high-temperature resistant material, and the positioning blocks are provided with fixing grooves, and the heat insulation plate is fixed in the heat insulation limiting groove through the fixing grooves and the first fixing holes.

[0016] Further, a plurality of the first heat dissipation holes are arranged at four corners of the heat insulation plate, a plurality of the pipe fitting perforations are arranged on the heat insulation plate, the number of the pipe fitting perforations is same as the number of the pipe sleeve placement sleeves, the axis of the pipe fitting perforation and the axis of the pipe sleeve placement sleeve are on the same vertical line, the second heat dissipation hole is arranged between two adjacent pipe fitting perforations, and the second heat dissipation hole is located directly above the third heat dissipation hole.

[0017] Further, the lifting assembly comprises a main lifting chain, an auxiliary stretching chain and an auxiliary pull ring, a plurality of the auxiliary pull rings are symmetrically arranged on the top of the placement block, one end of the auxiliary stretching chain is fixedly connected with the auxiliary pull ring through the first lifting hole and the second lifting hole respectively, the other end of the auxiliary stretching chain is connected with the lock of one end of the main lifting chain, the top of the heating box body is provided with a top beam, a travelling crane is arranged on the top beam, lifting motors are symmetrically arranged on the travelling crane respectively, and the lifting motors are used for winding the other end of the main lifting chain.

[0018] Further, the lifting heat insulation part comprises a heat insulation column and a limiting ring, the heat insulation column is arranged on the auxiliary stretching chain, one end of the heat insulation column is provided with the lifting limiting convex ring, the other end of the heat insulation column is provided with external threads, the inner wall of the limiting ring is provided with internal threads, the limiting ring is arranged on the other end of the heat insulation column through threads, and the heat insulation column is slidingly arranged in the first lifting hole.

[0019] Compared with the prior art, the utility model discloses a kind of middle package immersion type water gap baking devices according to the embodiment of the utility model, by being provided with heat preservation end cover in the top of heating box body, so that the containment cavity in heating cavity and heat preservation end cover forms seal, improve heating effect, reduce the waste of heating resources, and slidingly set placement assembly in heating cavity, wherein placement assembly includes placement block, placement pipe sleeve, sliding block and third heat dissipation hole, a plurality of placement pipe sleeves arranged on placement block are used to place immersion type water gap, and third heat dissipation hole is convenient for hot gas overflow to entire heating cavity, prevent temperature difference from appearing in the temperature of the space of placement block in heating cavity, wherein by being provided with lifting assembly and lifting placement block, so that placement block rises or falls in heating cavity, and lifting heat insulation part is used to limit heat preservation end cover. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure schematic diagram of a kind of middle package immersion type water gap baking devices of the utility model;

[0021] Figure 2 It is the overall explosion structure schematic diagram of a kind of middle package immersion type water gap baking devices of the utility model;

[0022] Figure 3It is a whole local sectional structure schematic view of the middle package immersion type water gap baking device of the utility model;

[0023] Figure 4 It is Figure 3 the main view perspective schematic view;

[0024] Figure 5 It is Figure 4 the local enlarged view of A area in the middle package;

[0025] Figure 6 It is a whole structure schematic view of the placing assembly in the middle package immersion type water gap baking device of the utility model;

[0026] Figure 7 It is Figure 6 the whole sectional structure schematic view;

[0027] Figure 8 It is a whole structure schematic view of the heat insulation plate in the middle package immersion type water gap baking device of the utility model.

[0028] Reference signs:

[0029] 1000. Combustion assembly; 1100. Combustion box body; 1200. Heat delivery pipeline;

[0030] 2000. Heating box body; 2100. Heating cavity; 2200. Heat insulation limiting groove; 2210. Positioning groove; 2220. First fixing hole; 2300. Sliding groove; 2400. Support column;

[0031] 3000. Heat preservation end cover; 3100. Containing cavity; 3200. First lifting hole;

[0032] 4000. Heat insulation plate; 4100. Positioning block; 4110. Fixed groove; 4200. Pipe fitting through hole; 4300. Second lifting hole; 4400. First heat dissipation hole; 4500. Second heat dissipation hole; 4600. Pull rod threaded hole;

[0033] 5000. Placing assembly; 5100. Placing block; 5200. Placing pipe sleeve; 5210. Limiting conical groove; 5300. Sliding block; 5400. Third heat dissipation hole;

[0034] 6000. Lifting assembly; 6100. Main lifting chain; 6110. Padlock; 6200. Auxiliary stretching chain; 6300. Auxiliary pull ring piece; 6400. Top beam piece; 6500. Row hoist; 6600. Lifting motor;

[0035] 7000. Lifting heat insulation piece; 7100. Heat insulation column; 7200. Limiting ring; 7300. Lifting limiting convex ring. DETAILED DESCRIPTION

[0036] In order to make the purpose, structure, characteristics, and functions of the present application have a further understanding, detailed description is as follows with examples.

[0037] As shown in Figures 1-8 According to the present application, a kind of middle package immersion type water gap baking device provided by the embodiment, including

[0038] Combustion assembly 1000, heating box 2000, heat preservation end cover 3000, heat insulation plate 4000, placement assembly 5000, lifting assembly 6000 and lifting heat insulation piece 7000;

[0039] Combustion assembly 1000 includes combustion box 1100 and heat pipe 1200, one end of heat pipe 1200 is communicated combustion box 1100;

[0040] Heating box 2000 is arranged at one side of combustion assembly 1000, and heating cavity 2100 with top opening is arranged in heating box 2000, and the other end of heat pipe 1200 is inserted into heating cavity 2100, and the other end of heat pipe 1200 is close to the bottom of heating cavity 2100, and the top of heating cavity 2100 is provided with heat insulation limiting groove 2200, a plurality of positioning grooves 2210 are arranged in heat insulation limiting groove 2200, and the inner wall of heating cavity 2100 is provided with symmetric sliding groove 2300, and first fixing hole 2220 is arranged on positioning groove 2210;

[0041] Heat preservation end cover 3000 is arranged above heating box 2000, and heat preservation end cover 3000 is provided with containing cavity 3100, and a plurality of symmetric first lifting holes 3200 are arranged on the top of heat preservation end cover 3000, and first lifting hole 3200 is communicated with containing cavity 3100;

[0042] A plurality of positioning blocks 4100 are arranged on both sides of heat insulation plate 4000, heat insulation plate 4000 is arranged in heat insulation limiting groove 2200, and positioning block 4100 is matched with positioning groove 2210, a plurality of pipe perforations 4200, second lifting holes 4300, first heat dissipation holes 4400 and second heat dissipation holes 4500 are arranged on heat insulation plate 4000, a plurality of second lifting holes 4300 are symmetrically arranged on heat insulation plate 4000, and pull rod threaded hole 4600 is arranged at the corner of heat insulation plate 4000, and second lifting hole 4300 is located directly below first lifting hole 3200;

[0043] The placing assembly 5000 comprises a placing block 5100, placing pipe sleeves 5200, sliding blocks 5300 and third heat dissipation holes 5400, the sliding blocks 5300 are arranged on both sides of the placing block 5100 and slide in sliding grooves 2300, a plurality of the placing pipe sleeves 5200 are arranged on the placing block 5100 in a row and penetratingly, a limiting conical groove 5210 is arranged in each of the placing pipe sleeves 5200, and the third heat dissipation holes 5400 are arranged between adjacent placing pipe sleeves 5200, and the pipe perforations 4200 are located directly above the placing pipe sleeves 5200;

[0044] One end of the lifting assembly 6000 is connected with the top surface of the placing block 5100 through the first lifting hole 3200 and the second lifting hole 4300 respectively;

[0045] The heat insulation piece 7000 is arranged on the lifting assembly 6000 and slides up and down in the first lifting hole 3200, and the lifting limiting convex ring 7300 is arranged on the heat insulation piece 7000;

[0046] The user uses the middle ladle immersion type nozzle baking device to bake a plurality of middle ladle immersion type nozzles;

[0047] Firstly, personnel need to send the gas mixed with air into the combustion box body 1100 to burn, a large amount of heat is generated by combustion and then flows into the heating cavity 2100 through the heat delivery pipeline 1200 to preheat the heating box body 2000 at high temperature, at this time, the heat preservation end cover 3000 is located at the top of the heating box body 2000, and the first heat dissipation hole 4400, the second heat dissipation hole 4500 and the third heat dissipation hole 5400 are used to communicate the heating cavity 2100 with the containing cavity 3100, so that the heating cavity 2100 and the containing cavity 3100 form a seal, thereby accelerating the temperature rise in the heating cavity 2100 and saving energy consumption, until the temperature in the heating cavity 2100 reaches the baking requirement, and then subsequent baking tasks are performed;

[0048] The personnel control the lifting assembly 6000 to start lifting, so that the lifting assembly 6000 lifts the placing block 5100, wherein the sliding blocks 5300 of the placing block 5100 slide upwards in the sliding grooves 2300, and the heat insulation piece 7000 also slides upwards in the first lifting hole 3200, when the lifting assembly 6000 rises to a certain height, the lifting limiting convex ring 7300 of the heat insulation piece 7000 is blocked at the first lifting hole 3200, at this time, when the lifting assembly 6000 is lifted again, the heat preservation end cover 3000 is lifted upwards synchronously, when the top surface of the placing block 5100 contacts the bottom surface of the heat insulation plate 4000, the lifting assembly 6000 stops working, at this time, the heat preservation end cover 3000 is far away from the top of the heating box body 2000, so that personnel can put or take out the immersion type nozzle from the placing pipe sleeve 5200.

[0049] When the top surface of the placing block 5100 is in contact with the bottom surface of the heat insulation plate 4000, the plurality of pipe holes 4200 on the heat insulation plate 4000 coincide with the top of the plurality of placing pipe sleeves 5200 on the placing block 5100, at this time, the personnel will sequentially place the other end of the plurality of submerged entry nozzles through the pipe holes 4200 into the limiting conical grooves 5210 of the placing pipe sleeves 5200, the limiting conical grooves 5210 will block and fix the submerged entry nozzles, at this time, one end of the submerged entry nozzles protrudes out of the pipe holes 4200, when the placement of all the submerged entry nozzles is completed, the user will control the lifting assembly 6000 to descend, during the descent of the lifting assembly 6000, the placing block 5100 and the heat preservation end cover 3000 will simultaneously descend, wherein the sliding block 5300 of the placing block 5100 cooperates with the sliding groove 2300 until the sliding block 5300 is in contact with the bottom of the sliding groove 2300, at this time, the placing block 5100 is located at the center of the heating cavity 2100, and the temperature at the center of the heating cavity 2100 is stable, so that the temperature fluctuation of the submerged entry nozzles is small when the submerged entry nozzles are subjected to all-around baking, thereby avoiding the phenomenon of uneven heating of the submerged entry nozzles, and at the same time, the heat preservation end cover 3000 is in contact with the heating box body 2000 after descending, thereby preventing heat from being dispersed again and avoiding energy waste.

[0050] When the plurality of submerged entry nozzles are subjected to baking for a specific time and a specific temperature, they need to be taken out in time, at this time, the personnel control the lifting assembly 6000 to start lifting, so that the heat preservation end cover 3000 and the placing block 5100 are sequentially lifted, wherein one end of the submerged entry nozzle located in the limiting conical groove 5210 of the placing pipe sleeve 5200 protrudes out of the pipe hole 4200, and at the same time, the heat preservation end cover 3000 is at a large distance from the top of the heating box body 2000, thereby facilitating the personnel to take out the baked submerged entry nozzles, and also facilitating the personnel to put in the submerged entry nozzles which have not been baked and continue the above-mentioned baking operation.

[0051] Further, the inner walls of the heating cavity 2100 and the accommodating cavity 3100 are provided with auxiliary heat preservation layers. The auxiliary heat preservation layers are made of asbestos felt, which can reduce the dispersion of heat, reduce the overall heating time, and avoid energy waste.

[0052] Further, as shown in FIG. 6, the heat insulation plate 4000 is provided with a plurality of pipe holes 4200, and the pipe holes 4200 are arranged in a staggered manner. Figure 2 、 Figure 3 and Figure 8As shown, the heat insulation plate 4000 is made of high-temperature resistant material, and the positioning block 4100 is provided with a fixing groove 4110, and the hexagonal bolt passes through the fixing groove 4110 and the first fixing hole 2220 to fix the heat insulation plate 4000 in the heat insulation limiting groove 2200. The positioning block 4100 of the heat insulation plate 4000 cooperates with the positioning groove 2210 of the heat insulation limiting groove 2200, thereby assisting in fixing the position of the heat insulation plate 4000, and the heat insulation plate 4000 is provided with a pull rod threaded hole 4600 at the four corners. One end of the pull rod is provided with a thread matched with the pull rod threaded hole 4600, and the other end of the pull rod is provided with a pull ring matched with the lifting hook, which is convenient for personnel to disassemble and install the heat insulation plate 4000.

[0053] Further, as shown in the drawings, Figure 8 A plurality of first heat dissipation holes 4400 are arranged at the four corners of the heat insulation plate 4000, and a plurality of pipe perforations 4200 are arranged on the heat insulation plate 4000, the number of the pipe perforations 4200 is the same as the number of the pipe sleeves 5200, the axis of the pipe perforations 4200 and the axis of the pipe sleeves 5200 are on the same vertical line, a second heat dissipation hole 4500 is arranged between two adjacent pipe perforations 4200, and the second heat dissipation hole 4500 is located directly above the third heat dissipation hole 5400. The heat insulation plate 4000 is made of high-temperature resistant material and can effectively absorb heat, and the plurality of first heat dissipation holes 4400 and the plurality of second heat dissipation holes 4500 on the heat insulation plate 4000 make the heating cavity 2100 communicate with the containing cavity 3100, and the plurality of first heat dissipation holes 4400 and the plurality of second heat dissipation holes 4500 on the heat insulation plate 4000 reduce the heat dissipation area of the heat insulation plate 4000, block the heat in the heating cavity 2100 from overflowing outward, and avoid the large loss of heat in the heating cavity 2100 when the heat preservation end cover 3000 rises, thereby reducing the large fluctuation of the temperature in the heating cavity 2100.

[0054] Further, as shown in the drawings, Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, the lifting assembly 6000 includes a main lifting chain 6100, an auxiliary stretching chain 6200 and an auxiliary pull ring 6300, a plurality of auxiliary pull rings 6300 are symmetrically arranged on the top of the placing block 5100, one end of the auxiliary stretching chain 6200 is fixedly connected with the auxiliary pull ring 6300 through the first lifting hole 3200 and the second lifting hole 4300 respectively, the other end of the auxiliary stretching chain 6200 is connected with the padlock 6110 of one end of the main lifting chain 6100, the top of the heating box body 2000 is provided with a top beam 6400, the top beam 6400 is provided with a travelling crane 6500, the travelling crane 6500 is symmetrically provided with a lifting motor 6600, the lifting motor 6600 is used for winding the other end of the main lifting chain 6100. The auxiliary stretching chain 6200 and the auxiliary pull ring 6300 are made of high-temperature carburizing material, so that the auxiliary stretching chain 6200 and the auxiliary pull ring 6300 can work normally in the high-temperature heating cavity 2100, wherein one end of the main lifting chain 6100 is provided with the padlock 6110, personnel can install or disassemble the auxiliary stretching chain 6200 and the main lifting chain 6100 according to the needs, which is convenient for the installation and disassembly maintenance of the later baking device, at the same time, the travelling crane 6500 on the top beam 6400 adopts the existing technology, so that the travelling crane 6500 slides on the top beam 6400, which is convenient for personnel to transfer the heat preservation end cover 3000 and the heat insulation plate 4000, and the lifting motor 6600 arranged on the travelling crane 6500 is used for winding the main lifting chain 6100, so as to realize the lifting and descending of the auxiliary stretching chain 6200.

[0055] Further, as Figure 4As shown, the lifting heat insulation piece 7000 includes a heat insulation column 7100 and a limiting ring 7200, the heat insulation column 7100 is arranged on the auxiliary stretching chain 6200, one end of the heat insulation column 7100 is provided with a lifting limiting convex ring 7300, the other end of the heat insulation column 7100 is provided with external threads, the inner wall of the limiting ring 7200 is provided with internal threads, the limiting ring 7200 is arranged at the other end of the heat insulation column 7100 through threads, and the heat insulation column 7100 is slidingly arranged in the first lifting hole 3200. The heat insulation column 7100 is made of high-temperature-resistant material, and the heat insulation column 7100 moves up and down in the first lifting hole 3200. By arranging the heat insulation column 7100 in the first lifting hole 3200, the heat is prevented from directly overflowing from the first lifting hole 3200, wherein the lifting limiting convex ring 7300 at one end of the heat insulation column 7100 is located in the containing cavity 3100, when the auxiliary stretching chain 6200 is installed, the other end of the auxiliary stretching chain 6200 needs to be threaded out of the first lifting hole 3200 until the other end of the heat insulation column 7100 is threaded out of the first lifting hole 3200, at this time, the limiting ring 7200 is screwed to the other end of the heat insulation column 7100, wherein the limiting ring 7200 is used for limiting the heat insulation column 7100 from falling off, preventing the heat insulation column 7100 from being separated from the first lifting hole 3200 when the auxiliary stretching chain 6200 continuously lowers, and the lifting limiting convex ring 7300 is used for lifting the heat preservation end cover 3000.

[0056] Preferably, the placement tube sleeve 5200 is made of high-temperature-resistant heat storage material, and the placement tube sleeve 5200 can absorb and store heat, so that the temperature of the placement tube sleeve 5200 remains stable.

[0057] Preferably, as shown in Figure 3 and Figure 4 As shown, the bottom corners of the heating cavity 2100 are provided with support columns 2400. When the sliding block 5300 of the placement block 5100 is in contact with the bottom of the sliding groove 2300, one end of the support column 2400 is in contact with the bottom surface of the placement block 5100, thereby supporting the placement block 5100 and ensuring the stability during the immersion nozzle baking.

[0058] In the description of the utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and are not indicative or suggestive of the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0059] The utility model has been described by the above related embodiments, however the above embodiment is only the example of implementing the utility model. It must be pointed out that the disclosed embodiment does not limit the scope of the utility model. On the contrary, the change and the decoration made without departing from the spirit and scope of the utility model all belong to the patent protection scope of the utility model.

Claims

1. A mid-batch immersion type baking device, characterized in that, include: Combustion assembly (1000), the combustion assembly (1000) includes a combustion chamber (1100) and a heat supply pipe (1200), one end of the heat supply pipe (1200) is connected to the combustion chamber (1100); A heating chamber (2000) is disposed on one side of the combustion assembly (1000). A heating cavity (2100) with a top opening is disposed inside the heating chamber (2000). The other end of the heat supply pipe (1200) extends into the heating cavity (2100) and is close to the bottom of the heating cavity (2100). A heat insulation limiting groove (2200) is provided on the top of the heating cavity (2100). Multiple positioning grooves (2210) are provided in the heat insulation limiting groove (2200). Sliding grooves (2300) are symmetrically provided on the inner wall of the heating cavity (2100). A first fixing hole (2220) is provided on the positioning groove (2210). A heat-insulating end cap (3000) is disposed above the heating box body (2000). The heat-insulating end cap (3000) has a receiving cavity (3100), and a plurality of symmetrical first lifting holes (3200) are opened on the top of the heat-insulating end cap (3000). The first lifting holes (3200) are connected to the receiving cavity (3100). A heat insulation plate (4000) is provided with multiple positioning blocks (4100) on both sides. The heat insulation plate (4000) is located in the heat insulation limiting groove (2200), and the positioning blocks (4100) cooperate with the positioning groove (2210). Multiple pipe fitting through holes (4200), second lifting holes (4300), first heat dissipation holes (4400) and second heat dissipation holes (4500) are opened on the heat insulation plate (4000). Multiple second lifting holes (4300) are symmetrically opened on the heat insulation plate (4000), and tie rod thread holes (4600) are opened at the four corners of the heat insulation plate (4000). The second lifting holes (4300) are located directly below the first lifting holes (3200). A placement assembly (5000) includes a placement block (5100), a placement tube sleeve (5200), a slider (5300), and a third heat dissipation hole (5400). The slider (5300) is provided on both sides of the placement block (5100). The slider (5300) slides in the sliding groove (2300). Multiple placement tube sleeves (5200) are arranged through the placement block (5100). A limiting conical groove (5210) is provided in the placement tube sleeve (5200). The third heat dissipation hole (5400) is opened between adjacent placement tube sleeves (5200). The tube through hole (4200) is located directly above the placement tube sleeve (5200). A lifting assembly (6000) has one end passing through the first lifting hole (3200) and the second lifting hole (4300) respectively and connected to the top surface of the placement block (5100); A lifting heat insulation component (7000) is provided on the lifting assembly (6000), and the lifting heat insulation component (7000) slides up and down in the first lifting hole (3200). A lifting limiting protrusion (7300) is provided on the lifting heat insulation component (7000), and the lifting limiting protrusion (7300) cooperates with the first lifting hole (3200).

2. The immersion-type sprue baking device according to claim 1, characterized in that, The inner walls of both the heating cavity (2100) and the accommodating cavity (3100) are provided with an auxiliary heat insulation layer.

3. The immersion-type sprue baking device according to claim 1, characterized in that, The heat insulation plate (4000) is made of high temperature resistant material, and the positioning block (4100) has a fixing groove (4110). The internal hex bolt will pass through the fixing groove (4110) and the first fixing hole (2220) to fix the heat insulation plate (4000) into the heat insulation limiting groove (2200).

4. The immersion-type sprue baking device according to claim 1, characterized in that, Multiple first heat dissipation holes (4400) are arranged at the four corners of the heat insulation plate (4000), and multiple pipe fitting perforations (4200) are arranged on the heat insulation plate (4000). The number of pipe fitting perforations (4200) is the same as the number of placement sleeves (5200). The axis of the pipe fitting perforation (4200) and the axis of the placement sleeve (5200) are on the same vertical line. A second heat dissipation hole (4500) is opened between two adjacent pipe fitting perforations (4200), and the second heat dissipation hole (4500) is located directly above the third heat dissipation hole (5400).

5. The immersion-type sprue baking device according to claim 1, characterized in that, The lifting assembly (6000) includes an active lifting chain (6100), an auxiliary tension chain (6200), and auxiliary pull rings (6300). Multiple auxiliary pull rings (6300) are symmetrically arranged on the top of the placement block (5100). One end of the auxiliary tension chain (6200) passes through the first lifting hole (3200) and the second lifting hole (4300) respectively and is fixedly connected to the auxiliary pull ring (6300). The other end of the auxiliary tension chain (6200) is connected to a padlock (6110) at one end of the active lifting chain (6100). A top beam (6400) is provided on the top of the heating box (2000). A gantry crane (6500) is provided on the top beam (6400). Lifting motors (6600) are symmetrically arranged on the gantry crane (6500). The lifting motors (6600) are used to coil the other end of the active lifting chain (6100).

6. The immersion-type sprue baking device according to claim 5, characterized in that, The lifting heat insulation component (7000) includes a heat insulation column (7100) and a limiting ring (7200). The heat insulation column (7100) is disposed on the auxiliary tension chain (6200). One end of the heat insulation column (7100) is provided with the lifting limiting protrusion ring (7300), and the other end of the heat insulation column (7100) is provided with an external thread. The inner wall of the limiting ring (7200) is provided with an internal thread. The limiting ring (7200) is disposed at the other end of the heat insulation column (7100) by the thread. The heat insulation column (7100) is slidably disposed in the first lifting hole (3200).

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