Heat treatment refractory furnace for large steel ingot

Abstract

The utility model relates to the technical field of fire-resistant furnaces, in particular to a heat treatment fire-resistant furnace for a large steel ingot, which is convenient for feeding and discharging the steel ingot while automatically opening a sealing plate, improves the practicability and convenience, and can automatically detect the closing of the sealing plate to improve the practicability. A heat treatment mechanism is included; the sealing mechanism is installed on the side wall of the heat treatment mechanism, the auxiliary feeding and discharging mechanism is installed on the side portion of the heat treatment mechanism, the driving mechanism is installed on the side wall of the heat treatment mechanism, and the feeding and discharging mechanism is installed at the top end of the auxiliary feeding and discharging mechanism; the detection mechanism is installed in the sealing mechanism, heat treatment is conveniently conducted on steel ingots through the heat treatment mechanism, and the driving mechanism drives the sealing mechanism to seal the heat treatment mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of refractory furnaces, in particular to a heat treatment refractory furnace for large steel ingots. Background Art

[0002] Ingot heat treatment is a crucial link in the metal processing process. It aims to improve the internal structure of the steel ingot through heating, insulation and cooling, so as to obtain the expected mechanical and physical properties.

[0003] Existing refractory furnaces, such as the prior art with application number CN202121399813.4, include a furnace body, a furnace cavity, a supporting bottom column, a first movable groove, a placement plate, a limiting retaining edge, a furnace door, a second movable groove, a movable rod and a tooth plate, etc. The steel can be automatically taken out and fed into the refractory furnace through the synchronously working furnace door and the placement plate, ensuring the safety of workers when transferring steel, and the manufacturing cost is low.

[0004] However, the prior art is to load and unload the steel ingots by placing a plate sliding on the furnace body, which may produce a large number of gaps, thereby reducing the sealing performance and causing a large amount of energy consumption. In addition, the prior art is not convenient for automatically controlling the opening and closing of the furnace door, which reduces its practicality. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a large-scale heat treatment refractory furnace for steel ingots, which is convenient for loading and unloading steel ingots by automatically opening the sealing plate, thereby improving practicality and convenience, and can automatically detect the closing of the sealing plate, thereby improving practicality.

[0006] The utility model discloses a large-scale heat treatment refractory furnace for steel ingots, comprising a heat treatment mechanism; further comprising a sealing mechanism, an auxiliary loading and unloading mechanism, a driving mechanism, an loading and unloading mechanism and a detection mechanism, wherein the sealing mechanism is mounted on the side wall of the heat treatment mechanism, the auxiliary loading and unloading mechanism is mounted on the side of the heat treatment mechanism, the driving mechanism is mounted on the side wall of the heat treatment mechanism, the loading and unloading mechanism is mounted on the top of the auxiliary loading and unloading mechanism, and the detection mechanism is mounted in the sealing mechanism, the heat treatment mechanism is convenient for heat treatment of the steel ingot, the driving mechanism drives the sealing mechanism to seal the heat treatment mechanism, the driving mechanism drives the auxiliary loading and unloading mechanism to load and unload the steel ingot in the heat treatment mechanism, the loading and unloading mechanism is convenient for lifting and lowering the steel ingot, and the detection mechanism is convenient for detecting the switch of the sealing mechanism; the heat treatment mechanism is convenient for heat treatment of the steel ingot, the driving mechanism drives the sealing mechanism to seal the heat treatment mechanism to reduce heat loss, the driving mechanism drives the auxiliary loading and unloading mechanism to load and unload the steel ingot in the heat treatment mechanism, the loading and unloading mechanism is convenient for lifting and lowering the steel ingot, and the detection mechanism is convenient for detecting the switch of the sealing mechanism, thereby facilitating the control of the driving mechanism and improving practicality.

[0007] Preferably, the heat treatment mechanism comprises a refractory furnace and a refractory heating wire, wherein the refractory heating wire is installed on the inner wall of the refractory furnace; and the steel ingot in the refractory furnace is heat treated by opening the refractory heating wire.

[0008] Preferably, the sealing mechanism includes a sliding frame, a sealing plate, a tooth plate, a gear shaft and a rotating shaft. The sliding frame is installed on the side wall of the refractory furnace, the sealing plate is slidably installed in the sliding frame, the tooth plate is installed on the side wall of the sealing plate, and the gear shaft is rotatably installed on the top of the refractory furnace through the rotating shaft, and the gear shaft is meshed with the tooth plate; the rotating shaft is driven to rotate by opening the driving mechanism, and then the gear shaft is driven to rotate, and the sealing plate is driven to slide in the sliding frame due to the meshing relationship, which makes it easier to control the switch of the sealing plate, and the refractory furnace is sealed by the sealing plate to reduce heat loss.

[0009] Preferably, the auxiliary loading and unloading mechanism includes a slide rail, a first sliding plate, a rack and a gear. The slide rail is installed on the side of the refractory furnace, the first sliding plate is slidably installed on the slide rail, the rack is installed on the first sliding plate, and the gear is rotatably installed on the side wall of the slide rail, and the gear is meshed with the rack. The gear is driven to rotate by opening the driving mechanism, and then the first sliding plate is driven to slide on the slide rail through the meshing relationship, thereby facilitating the auxiliary loading and unloading mechanism to load and unload the steel ingots and improving convenience.

[0010] Preferably, the driving mechanism includes a driving shaft, a driving motor, four pulleys, a first transmission belt and a second transmission belt. The driving shaft is rotatably installed on the side wall of the refractory furnace. The driving motor is installed on the side wall of the refractory furnace through a motor frame. The output end of the driving motor is connected to the driving shaft. A rotating shaft is provided on the gear. A pulley is installed on the rotating shaft of the gear. A pulley is installed on the rotating shaft. Two pulleys are installed on the driving shaft. The first transmission belt connects the pulley of the rotating shaft on the gear and the pulley on the driving shaft, and the second transmission belt connects the pulley on the rotating shaft and the pulley on the driving shaft. The driving shaft is driven to rotate by turning on the driving motor, and then the rotating shaft is driven to rotate by the transmission of the second transmission belt, thereby driving the gear shaft to rotate. Due to the meshing relationship, the sealing plate is driven to slide in the sliding frame, thereby facilitating the control of the switch of the sealing plate. The refractory furnace is sealed by the sealing plate to reduce heat loss. The driving shaft is driven to rotate by turning on the driving motor and the gear is driven to rotate by the first transmission belt at the same time. Then, the first sliding plate is driven to slide on the slide rail through the meshing relationship, thereby facilitating the auxiliary loading and unloading mechanism to load and unload the steel ingots, thereby improving convenience.

[0011] Preferably, the loading and unloading mechanism includes a sliding sleeve, a first sliding block, a support rod, a second sliding block, a hydraulic cylinder, a material rack and a steel ingot, the sliding sleeve is installed on the top end of the first sliding plate, the first sliding block is longitudinally slidably installed in the sliding sleeve, a sliding groove is provided on the side wall of the sliding sleeve, the support rod is installed on the sliding sleeve, the support rod is slidably installed in the sliding groove, the bottom end of the first sliding block is an inclined surface, the second sliding block is transversely slidably installed in the sliding sleeve, the top end of the second sliding block is an inclined surface, the second sliding block is slidably matched with the inclined surface of the first sliding block, the hydraulic cylinder is installed on the side wall of the sliding sleeve, the movable end of the hydraulic cylinder is connected to the second sliding block, and the material rack is installed inside the refractory furnace The steel ingot is installed on the top of the material rack, and the material rack is provided with a socket, and the support rod can be inserted into the material rack; when the sealing plate is opened by turning on the driving motor and the first sliding plate is driven to slide on the slide rail at the same time, the support rod is inserted into the socket of the material rack, and then the second sliding block is pushed to slide horizontally in the sliding sleeve by turning on the hydraulic cylinder, and then the second sliding block and the inclined surface of the first sliding block slide, driving the first sliding block to slide longitudinally in the sliding sleeve, and then supporting the material rack through the support rod, and then lifting the steel ingot, and then controlling the driving motor to reverse, so that the sealing plate is closed, and at the same time, the first sliding plate is driven to slide in the opposite direction to bring the material rack out, thereby improving practicality.

[0012] Preferably, the detection mechanism includes a second sliding plate, a sliding rod, a limit plate, a spring and a proximity switch, a chamber is provided in the sealing plate, the second sliding plate is slidably installed in the chamber, the sliding rod is installed on the second sliding plate, the sliding rod is slidably installed on the bottom end of the sealing plate, the limit plate is installed on the bottom end of the sliding rod, one end of the spring is installed on the bottom end of the sealing plate, the other end of the spring is installed on the limit plate, and the proximity switch is installed on the top of the chamber of the sealing plate; when the driving motor drives the sealing plate to descend, it contacts the ground through the limit plate, and as the sealing plate continues to descend, the sliding rod is driven to slide at the bottom end of the sealing plate, so that the second sliding plate slides in the chamber of the sealing plate, and when the second sliding plate approaches the proximity switch, the driving motor is controlled to be turned off through the proximity switch, thereby completing the sealing of the refractory furnace.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the heat treatment mechanism facilitates heat treatment of the steel ingot, the driving mechanism drives the sealing mechanism to seal the heat treatment mechanism to reduce heat loss, the driving mechanism drives the auxiliary loading and unloading mechanism to load and unload the steel ingot in the heat treatment mechanism, the loading and unloading mechanism facilitates the lifting and lowering of the steel ingot, the detection mechanism facilitates the detection of the switch of the sealing mechanism, and then facilitates the control of the driving mechanism, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0015] Figure 2It is a second axonometric structural schematic diagram of the utility model;

[0016] Figure 3 It is a third axonometric structural schematic diagram of the utility model;

[0017] Figure 4 It is a front cross-sectional structural schematic diagram of the utility model;

[0018] Figure 5 It is a schematic diagram of the side-view cross-section axonometric structure of the utility model;

[0019] Figure 6 It is a side cross-sectional structural schematic diagram of the utility model;

[0020] Markings in the accompanying drawings: 01, heat treatment mechanism; 11, refractory furnace; 12, refractory heating wire; 02, sealing mechanism; 21, sliding frame; 22, sealing plate; 23, tooth plate; 24, gear shaft; 25, rotating shaft; 03, auxiliary loading and unloading mechanism; 31, slide rail; 32, first sliding plate; 33, rack; 34, gear; 04, driving mechanism; 41, driving shaft; 42, driving motor; 43, pulley; 44, first transmission belt; 45, second transmission belt; 05, loading and unloading mechanism; 51, sliding sleeve; 52, first sliding block; 53, slide groove; 54, support rod; 55, second sliding block; 56, hydraulic cylinder; 57, material rack; 58, steel ingot; 06, detection mechanism; 61, second sliding plate; 62, sliding rod; 63, limit plate; 64, spring; 65, proximity switch. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] Example 1

[0023] like Figure 3 and Figure 5 As shown, it includes a heat treatment mechanism 01, a sealing mechanism 02, an auxiliary loading and unloading mechanism 03, a driving mechanism 04, an loading and unloading mechanism 05 and a detection mechanism 06, wherein the sealing mechanism 02 is mounted on the side wall of the heat treatment mechanism 01, the auxiliary loading and unloading mechanism 03 is mounted on the side of the heat treatment mechanism 01, the driving mechanism 04 is mounted on the side wall of the heat treatment mechanism 01, the loading and unloading mechanism 05 is mounted on the top of the auxiliary loading and unloading mechanism 03, and the detection mechanism 06 is mounted in the sealing mechanism 02;

[0024] The heat treatment mechanism 01 facilitates heat treatment of the steel ingot, the driving mechanism 04 drives the sealing mechanism 02 to seal the heat treatment mechanism 01, the driving mechanism 04 drives the auxiliary loading and unloading mechanism 03 to load and unload the steel ingot in the heat treatment mechanism 01, the loading and unloading mechanism 05 facilitates lifting and lowering the steel ingot, and the detection mechanism 06 facilitates detection of the switch of the sealing mechanism 02;

[0025] The heat treatment mechanism 01 includes a refractory furnace 11 and a refractory heating wire 12, and the refractory heating wire 12 is installed on the inner wall of the refractory furnace 11;

[0026] The sealing mechanism 02 includes a sliding frame 21, a sealing plate 22, a tooth plate 23, a gear shaft 24 and a rotating shaft 25. The sliding frame 21 is installed on the side wall of the refractory furnace 11. The sealing plate 22 is slidably installed in the sliding frame 21. The tooth plate 23 is installed on the side wall of the sealing plate 22. The gear shaft 24 is rotatably installed on the top of the refractory furnace 11 through the rotating shaft 25. The gear shaft 24 is meshed with the tooth plate 23.

[0027] The auxiliary loading and unloading mechanism 03 includes a slide rail 31, a first sliding plate 32, a rack 33 and a gear 34. The slide rail 31 is installed on the side of the refractory furnace 11, the first sliding plate 32 is slidably installed on the slide rail 31, the rack 33 is installed on the first sliding plate 32, and the gear 34 is rotatably installed on the side wall of the slide rail 31, and the gear 34 is meshed with the rack 33;

[0028] The driving mechanism 04 includes a driving shaft 41, a driving motor 42, four pulleys 43, a first transmission belt 44 and a second transmission belt 45. The driving shaft 41 is rotatably mounted on the side wall of the refractory furnace 11. The driving motor 42 is mounted on the side wall of the refractory furnace 11 through a motor frame. The output end of the driving motor 42 is connected to the driving shaft 41. A rotating shaft is provided on the gear 34. A pulley 43 is mounted on the rotating shaft of the gear 34. A pulley 43 is mounted on the rotating shaft 25. Two pulleys 43 are mounted on the driving shaft 41. The first transmission belt 44 connects the pulley 43 of the rotating shaft on the gear 34 and the pulley 43 on the driving shaft 41. The second transmission belt 45 connects the pulley 43 on the rotating shaft 25 and the pulley 43 on the driving shaft 41.

[0029] The steel ingots in the refractory furnace 11 are heat treated by turning on the refractory heating wire 12, the driving shaft 41 is driven to rotate by turning on the driving motor 42, and then the rotating shaft 25 is driven to rotate by the transmission of the second transmission belt 45, and then the gear shaft 24 is driven to rotate, and the sealing plate 22 is driven to slide in the sliding frame 21 due to the meshing relationship, so as to facilitate the control of the switch of the sealing plate 22, and the refractory furnace 11 is sealed by the sealing plate 22 to reduce heat loss, and the driving shaft 41 is driven to rotate by turning on the driving motor 42, and the gear 34 is driven to rotate by the first transmission belt 44, and then the first sliding plate 32 is driven to slide on the slide rail 31 through the meshing relationship, so as to facilitate the auxiliary loading and unloading mechanism 05 to load and unload the steel ingots, thereby improving convenience, the loading and unloading mechanism 05 is convenient for lifting and lowering the steel ingots, and the detection mechanism 06 is convenient for detecting the switch of the sealing mechanism 02, thereby facilitating the control of the driving mechanism 04, thereby improving practicality.

[0030] Example 2

[0031] like Figures 1 to 6 As shown, it includes a heat treatment mechanism 01, a sealing mechanism 02, an auxiliary loading and unloading mechanism 03, a driving mechanism 04, an loading and unloading mechanism 05 and a detection mechanism 06, wherein the sealing mechanism 02 is mounted on the side wall of the heat treatment mechanism 01, the auxiliary loading and unloading mechanism 03 is mounted on the side of the heat treatment mechanism 01, the driving mechanism 04 is mounted on the side wall of the heat treatment mechanism 01, the loading and unloading mechanism 05 is mounted on the top of the auxiliary loading and unloading mechanism 03, and the detection mechanism 06 is mounted in the sealing mechanism 02;

[0032] The heat treatment mechanism 01 facilitates heat treatment of the steel ingot, the driving mechanism 04 drives the sealing mechanism 02 to seal the heat treatment mechanism 01, the driving mechanism 04 drives the auxiliary loading and unloading mechanism 03 to load and unload the steel ingot in the heat treatment mechanism 01, the loading and unloading mechanism 05 facilitates lifting and lowering the steel ingot, and the detection mechanism 06 facilitates detection of the switch of the sealing mechanism 02;

[0033] The loading and unloading mechanism 05 includes a sliding sleeve 51, a first sliding block 52, a support rod 54, a second sliding block 55, a hydraulic cylinder 56, a material rack 57 and a steel ingot 58. The sliding sleeve 51 is installed at the top end of the first sliding plate 32, the first sliding block 52 is longitudinally slidably installed in the sliding sleeve 51, a sliding groove 53 is arranged on the side wall of the sliding sleeve 51, the support rod 54 is installed on the sliding sleeve 51, and the support rod 54 is slidably installed in the sliding groove 53. The bottom end of the first sliding block 52 is an inclined surface, the second sliding block 55 is transversely slidably installed in the sliding sleeve 51, the top end of the second sliding block 55 is an inclined surface, and the second sliding block 55 is slidably matched with the inclined surface of the first sliding block 52. The hydraulic cylinder 56 is installed on the side wall of the sliding sleeve 51, and the movable end of the hydraulic cylinder 56 is connected to the second sliding block 55. The material rack 57 is installed inside the refractory furnace 11, and the steel ingot 58 is installed on the top end of the material rack 57. The material rack 57 is provided with a socket, and the support rod 54 can be inserted into the material rack 57.

[0034] The detection mechanism 06 includes a second sliding plate 61, a sliding rod 62, a limit plate 63, a spring 64 and a proximity switch 65. A chamber is provided in the sealing plate 22. The second sliding plate 61 is slidably mounted in the chamber. The sliding rod 62 is mounted on the second sliding plate 61. The sliding rod 62 is slidably mounted at the bottom end of the sealing plate 22. The limit plate 63 is mounted at the bottom end of the sliding rod 62. One end of the spring 64 is mounted at the bottom end of the sealing plate 22. The other end of the spring 64 is mounted on the limit plate 63. The proximity switch 65 is mounted at the top of the chamber of the sealing plate 22.

[0035] The heat treatment mechanism 01 facilitates heat treatment of the steel ingot. The driving mechanism 04 drives the sealing mechanism 02 to seal the heat treatment mechanism 01 to reduce heat loss. The driving mechanism 04 drives the auxiliary loading and unloading mechanism 03 to load and unload the steel ingot in the heat treatment mechanism 01. When the sealing plate 22 is opened by turning on the driving motor 42 and the first sliding plate 32 is driven to slide on the slide rail 31 at the same time, the support rod 54 is inserted into the insertion hole of the material rack 57, and then the second sliding block 55 is pushed to slide horizontally in the sliding sleeve 51 by turning on the hydraulic cylinder 56, and then the second sliding block 55 and the inclined surface of the first sliding block 52 are slid to drive the first sliding block 52 in the sliding sleeve 51. It slides longitudinally, and then supports the material rack 57 through the support rod 54, and then lifts the steel ingot 58, and then controls the driving motor 42 to reverse, so that the sealing plate 22 is closed, and at the same time drives the first sliding plate 32 to slide in the opposite direction to bring out the material rack 57, thereby improving practicality. When the driving motor 42 drives the sealing plate 22 to descend, it contacts the ground through the limit plate 63. As the sealing plate 22 continues to descend, it drives the sliding rod 62 to slide at the bottom end of the sealing plate 22, so that the second sliding plate 61 slides in the chamber of the sealing plate 22. When the second sliding plate 61 approaches the proximity switch 65, the proximity switch 65 controls the driving motor 42 to be closed, thereby completing the sealing of the refractory furnace 11.

[0036] like Figures 1 to 6 As shown, the utility model is a large-scale heat treatment refractory furnace for steel ingots. When it is working, the steel ingots in the refractory furnace 11 are heat treated by opening the refractory heating wire 12, and the driving shaft 41 is driven to rotate by turning on the driving motor 42, and then the rotating shaft 25 is driven to rotate by the transmission of the second transmission belt 45, thereby driving the gear shaft 24 to rotate, and the sealing plate 22 is driven to slide in the sliding frame 21 due to the meshing relationship, so as to facilitate the control of the switch of the sealing plate 22, and the refractory furnace 11 is sealed by the sealing plate 22 to reduce heat loss, and the driving shaft 41 is driven to rotate by turning on the driving motor 42, and the gear 34 is driven to rotate by the first transmission belt 44, and then the first sliding plate 32 is driven to slide on the slide rail 31 through the meshing relationship, so as to facilitate the auxiliary loading and unloading mechanism 05 to load and unload the steel ingots and improve convenience. When the sealing plate 22 is opened by turning on the driving motor 42 and the first sliding plate 32 is driven to slide on the slide rail 31 at the same time, the support The support rod 54 is inserted into the insertion hole of the material rack 57, and then the second sliding block 55 is pushed to slide horizontally in the sliding sleeve 51 by opening the hydraulic cylinder 56, and then the second sliding block 55 and the inclined surface of the first sliding block 52 are slid, driving the first sliding block 52 to slide longitudinally in the sliding sleeve 51, and then the material rack 57 is supported by the support rod 54, and then the steel ingot 58 is lifted, and then the sealing plate 22 is closed by controlling the driving motor 42 to reverse, and at the same time, the first sliding plate 32 is driven to slide in the opposite direction to bring the material rack 57 out, thereby improving practicality. When the driving motor 42 drives the sealing plate 22 to descend, it contacts the ground through the limit plate 63. As the sealing plate 22 continues to descend, the sliding rod 62 is driven to slide at the bottom end of the sealing plate 22, so that the second sliding plate 61 slides in the chamber of the sealing plate 22. When the second sliding plate 61 approaches the proximity switch 65, the driving motor 42 is controlled to be closed through the proximity switch 65, thereby completing the sealing of the refractory furnace 11.

[0037] The refractory heating wire 12, drive motor 42, hydraulic cylinder 56 and proximity switch 65 of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manuals without the need for creative work by technicians in this field.

[0038] The main functions achieved by the utility model are: during the operation of the refractory furnace, it is convenient to load and unload the steel ingots by automatically opening the sealing plate 22, thereby improving practicality and convenience, and the closing of the sealing plate 22 can be automatically detected, thereby improving practicality.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A heat treatment refractory furnace for large steel ingots, comprising a heat treatment mechanism (01); characterized in that: It also includes a sealing mechanism (02), an auxiliary loading and unloading mechanism (03), a driving mechanism (04), an loading and unloading mechanism (05) and a detection mechanism (06), wherein the sealing mechanism (02) is mounted on the side wall of the heat treatment mechanism (01), the auxiliary loading and unloading mechanism (03) is mounted on the side of the heat treatment mechanism (01), the driving mechanism (04) is mounted on the side wall of the heat treatment mechanism (01), the loading and unloading mechanism (05) is mounted on the top of the auxiliary loading and unloading mechanism (03), and the detection mechanism (06) is mounted in the sealing mechanism (02); The heat treatment mechanism (01) is convenient for heat treatment of steel ingots, the driving mechanism (04) drives the sealing mechanism (02) to seal the heat treatment mechanism (01), the driving mechanism (04) drives the auxiliary loading and unloading mechanism (03) to load and unload the steel ingots in the heat treatment mechanism (01), the loading and unloading mechanism (05) is convenient for lifting and lowering the steel ingots, and the detection mechanism (06) is convenient for detecting the switch of the sealing mechanism (02).

2. A large steel ingot heat treatment refractory furnace as claimed in claim 1, characterized in that: The heat treatment mechanism (01) comprises a refractory furnace (11) and a refractory heating wire (12), wherein the refractory heating wire (12) is installed on the inner wall of the refractory furnace (11).

3. A large steel ingot heat treatment refractory furnace as claimed in claim 2, characterized in that: The sealing mechanism (02) comprises a sliding frame (21), a sealing plate (22), a tooth plate (23), a gear shaft (24) and a rotating shaft (25); the sliding frame (21) is mounted on the side wall of the refractory furnace (11); the sealing plate (22) is slidably mounted in the sliding frame (21); the tooth plate (23) is mounted on the side wall of the sealing plate (22); the gear shaft (24) is rotatably mounted on the top of the refractory furnace (11) through the rotating shaft (25); and the gear shaft (24) is meshed with the tooth plate (23).

4. A large-scale steel ingot heat treatment refractory furnace as claimed in claim 2, characterized in that: The auxiliary loading and unloading mechanism (03) includes a slide rail (31), a first sliding plate (32), a rack (33) and a gear (34). The slide rail (31) is installed on the side of the refractory furnace (11). The first sliding plate (32) is slidably installed on the slide rail (31). The rack (33) is installed on the first sliding plate (32). The gear (34) is rotatably installed on the side wall of the slide rail (31). The gear (34) is meshed with the rack (33).

5. A large-scale steel ingot heat treatment refractory furnace as claimed in claim 2, characterized in that: The driving mechanism (04) comprises a driving shaft (41), a driving motor (42), four pulleys (43), a first transmission belt (44) and a second transmission belt (45); the driving shaft (41) is rotatably mounted on the side wall of the refractory furnace (11); the driving motor (42) is mounted on the side wall of the refractory furnace (11) through a motor frame; the output end of the driving motor (42) is connected to the driving shaft (41); a rotating shaft is arranged on the gear (34); a pulley (43) is mounted on the rotating shaft of the gear (34); a pulley (43) is mounted on the rotating shaft (25); two pulleys (43) are mounted on the driving shaft (41); the first transmission belt (44) connects the pulley (43) on the rotating shaft of the gear (34) and the pulley (43) on the driving shaft (41); the second transmission belt (45) connects the pulley (43) on the rotating shaft (25) and the pulley (43) on the driving shaft (41).

6. A large-scale steel ingot heat treatment refractory furnace as claimed in claim 4, characterized in that: The loading and unloading mechanism (05) comprises a sliding sleeve (51), a first sliding block (52), a support rod (54), a second sliding block (55), a hydraulic cylinder (56), a material rack (57) and a steel ingot (58). The sliding sleeve (51) is mounted on the top of the first sliding plate (32). The first sliding block (52) is longitudinally slidably mounted in the sliding sleeve (51). A sliding groove (53) is arranged on the side wall of the sliding sleeve (51). The support rod (54) is mounted on the sliding sleeve (51). The support rod (54) is slidably mounted in the sliding groove (53). The first sliding block (52) The bottom end of the sliding sleeve (51) is an inclined surface, the second sliding block (55) is installed in the sliding sleeve (51) for transverse sliding, the top end of the second sliding block (55) is an inclined surface, the second sliding block (55) and the inclined surface of the first sliding block (52) are slidably matched, the hydraulic cylinder (56) is installed on the side wall of the sliding sleeve (51), the movable end of the hydraulic cylinder (56) is connected to the second sliding block (55), the material rack (57) is installed inside the refractory furnace (11), the steel ingot (58) is installed on the top end of the material rack (57), the material rack (57) is provided with a plug hole, and the support rod (54) can be inserted into the material rack (57).

7. A large-scale steel ingot heat treatment refractory furnace as claimed in claim 3, characterized in that: The detection mechanism (06) comprises a second sliding plate (61), a sliding rod (62), a limit plate (63), a spring (64) and a proximity switch (65); a chamber is arranged in the sealing plate (22); the second sliding plate (61) is slidably mounted in the chamber; the sliding rod (62) is mounted on the second sliding plate (61); the sliding rod (62) is slidably mounted at the bottom end of the sealing plate (22); the limit plate (63) is mounted at the bottom end of the sliding rod (62); one end of the spring (64) is mounted at the bottom end of the sealing plate (22); the other end of the spring (64) is mounted on the limit plate (63); and the proximity switch (65) is mounted at the top end of the chamber of the sealing plate (22).

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