Heat preservation device for blast furnace stemming

Abstract

The utility model relates to the technical field of blast furnace stemming preservation, and particularly discloses a blast furnace stemming heat preservation device which comprises a heat preservation outer box, an outer cover and a heat preservation inner box, a heating element is fixedly arranged at the bottom of the inner wall of the heat preservation inner box, rotating supporting pieces are rotationally arranged on the two sides of the inner wall of the heat preservation inner box, and stirring shafts are detachably installed in the middles of the two rotating supporting pieces. A baffle is arranged on one side of the outer heat-preservation box, a motor for driving the supporting pieces to rotate is arranged on the inner side of the baffle, and a power assembly is arranged outside the outer heat-preservation box. According to the technical scheme, blast furnace stemming is stored in the heat preservation inner box, the stirring shaft can continuously stir the blast furnace stemming when rotating, meanwhile, the heating element is matched, heat preservation and heating can be conducted on the blast furnace stemming, the blast furnace stemming in the stirring state evenly makes contact with the heating element, the comprehensiveness of heating and heat preservation is improved, and the service life of the blast furnace stemming is prolonged. And the hardening phenomenon of the blast furnace stemming stored in the heat preservation inner box due to large internal and external temperature difference is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace taphole mud preservation, in particular to a heat preservation device for blast furnace taphole mud. Background Art

[0002] Currently, taphole clay is a key material for opening and plugging the taphole of a blast furnace. It determines the depth of the taphole and the quality of the iron tapping process, making its quality extremely important. Domestic taphole clay typically uses tar, anthracene oil, or phenolic resin as a binder. This binder varies depending on the season, resulting in varying degrees of softness and hardness. In winter, taphole clay is generally harder, making it difficult to press into the clay taphole during extrusion and prone to breakage, thus affecting performance. Currently, domestically produced taphole clay is typically stored outdoors in open steel boxes. A search of prior art publication number (CN215328189U) discloses a thermal insulation device for blast furnace taphole clay.

[0003] In the process of realizing the present utility model, the inventors found that there are at least the following problems in the prior art that have not been solved: the above-mentioned prior art only performs constant temperature heating through an insulation box and a heating element arranged in the box. Since the bottom of the cannon clay is directly heated by the heating element and the cannon clay as a whole is not in a flowing state, the temperature of the bottom surface and the outer surface of the cannon clay as a whole is high, but the internal temperature is low, resulting in a large temperature difference between the inner and outer surfaces of the cannon clay, and the cannon clay may still become compacted, which needs to be improved. Therefore, we propose an insulation device for blast furnace cannon clay. Utility Model Content

[0004] The purpose of the utility model is to provide a heat preservation device for blast furnace taphole mud, which solves the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an insulation device for blast furnace cannon mud, comprising an insulation outer box, an outer cover, and an insulation inner box arranged inside the insulation outer box, a heating element is fixedly provided on the bottom of the inner wall of the insulation inner box, a power controller electrically connected to the heating element is provided on the outside of the insulation outer box, rotating supports are rotatably provided on both sides of the inner wall of the insulation inner box, a stirring shaft is detachably installed in the middle of the two rotating supports, a cavity is opened on one side of the insulation outer box, a baffle is fixed on the outside of the cavity by bolts, a motor for driving the support to rotate is provided on the inside of the baffle, and a power supply assembly is provided on the outside of the insulation outer box.

[0006] Furthermore, the stirring shaft includes a central shaft, block seats arranged at both ends of the central shaft, and a stirring rod arranged on the circumferential surface of the central shaft.

[0007] Furthermore, a slot for accommodating the block seat inlay is provided in the middle of the support member, and a pressure plate is detachably mounted on the top of the support member by bolts.

[0008] Furthermore, a motor controller for controlling the start and stop of the motor is fixedly provided on the outside of the baffle, and a plurality of vertical heat dissipation slots are provided on the surface of the baffle.

[0009] Furthermore, a driven gear is coaxially provided on one side support member, and a motor shaft of the motor is connected to a driving gear meshing with the driven gear.

[0010] Furthermore, a strap is connected to the outside of the thermal insulation outer box, and the strap is rotatably connected to the thermal insulation outer box through a pin shaft.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. The technical solution of the present application stores blast furnace taphole clay in an insulated inner box. When the stirring shaft rotates, the blast furnace taphole clay can be continuously stirred and simultaneously cooperated with the heating element. Not only can the blast furnace taphole clay be insulated and heated, but the blast furnace taphole clay in the stirred state is evenly in contact with the heating element, thereby improving the comprehensiveness of heating and heat preservation, and avoiding the blast furnace taphole clay stored in the insulated inner box from becoming compacted due to the large temperature difference between the inside and the outside.

[0013] 2. The technical solution of the present application can be quickly disassembled through the stirring shaft and the support. By removing the stirring shaft, it is more convenient to remove the blast furnace mud inside the insulation inner box. At the same time, by removing the stirring shaft, it is convenient to clean the stirring shaft and the insulation inner box later. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 A three-dimensional diagram of a blast furnace taphole clay insulation device;

[0016] Figure 2 This is a schematic diagram of the internal structure of the insulation device of the blast furnace taphole mud;

[0017] Figure 3 Schematic diagram of the structure of the stirring shaft and support.

[0018] In the figure: 1. Insulated outer box; 2. Outer cover; 3. Strap; 4. Motor controller; 5. Baffle; 6. Power supply assembly; 7. Power controller; 8. Stirring shaft; 801, block seat; 9. Insulated inner box; 10. Heating element; 11. Support member; 12. Cavity; 13. Motor; 14. Press plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Example 1, as Figure 1-3 As shown, the utility model provides a technical solution: an insulation device for blast furnace cannon mud, comprising an insulation outer box 1, an outer cover 2, and an insulation inner box 9 arranged inside the insulation outer box 1, a heating element 10 is fixedly arranged on the bottom of the inner wall of the insulation inner box 9, and a power controller 7 electrically connected to the heating element 10 is arranged on the outside of the insulation outer box 1, and rotating supports 11 are rotatably arranged on both sides of the inner wall of the insulation inner box 9. A stirring shaft 8 is detachably installed at the middle of the two rotating supports 11, a cavity 12 is opened on one side of the insulation outer box 1, a baffle 5 is fixedly arranged on the outside of the cavity 12 by bolts, a motor 13 for driving the support member 11 to rotate is arranged on the inside of the baffle 5, a power supply component 6 is arranged on the outside of the insulation outer box 1, the stirring shaft 8 includes a central axis, a block seat 801 arranged at both ends of the central axis, and a stirring rod arranged on the circumferential surface of the central axis, a card slot for accommodating the block seat 801 is opened in the middle of the support member 11, and a pressure plate 14 is detachably installed on the top of the support member 11 by bolts.

[0021] In a specific embodiment of the present invention, the strap 3 is made of nylon and is used to carry the thermal insulation outer box 1;

[0022] The outer shell of the thermal insulation box 1 is made of stainless steel, and the inner layer is filled with polyurethane foam for thermal insulation. The thermal insulation inner box 9 is made of stainless steel;

[0023] A rotating shaft is provided on the outside of the support member 11, which cooperates with the bearing reserved on the side wall of the thermal insulation inner box 9. The support member 11 on the right side passes through the thermal insulation inner box 9, and the support member 11 is connected to the motor 13 by gear meshing.

[0024] The disassembly and assembly steps of the stirring shaft 8 and the support member 11 are as follows: first disassemble the pressing plate 14, and the block seats 801 at both ends of the stirring shaft 8 can be embedded in the corresponding support member 11, and then assemble the pressing plate 14 (the shape and structure of the pressing plate 14 is as follows Figure 3 As shown), the pressure plate 14 is fixed to the surface of the support member 11 by bolts, and the pressure plate 14 is provided with a pressure edge for resisting the block seat 801; the disassembly of the pressure plate 14 can realize the disassembly and assembly of the stirring shaft 8;

[0025] The heating element 10 is a resistance heating plate. The heating element 10 is embedded in the bottom of the inner wall of the thermal insulation inner box 9 and is flush with the bottom of the inner wall of the thermal insulation inner box 9. The heating element 10 is connected to the power controller 7 through a wire. A temperature sensor and a temperature display can be set inside the thermal insulation inner box 9 to monitor the internal temperature of the thermal insulation inner box 9 in real time. The power of the heating element 10 is adjusted according to the temperature value to keep the taphole mud at a stable temperature for thermal insulation.

[0026] The power supply assembly 6 is used to supply electrical energy to the heating element 10 and the motor 13 .

[0027] In the preferred technical solution, a motor controller 4 for controlling the start and stop of the motor 13 is fixedly installed on the outside of the baffle 5. The motor controller 4 facilitates the control of the start and stop of the motor 13. Several heat dissipation vertical grooves are opened on the surface of the baffle 5, and the heat dissipation vertical grooves are used for daily heat dissipation of the motor 13.

[0028] In the preferred technical solution, a driven gear is coaxially provided on one side support member 11, and the motor shaft of the motor 13 is connected to a driving gear meshing with the driven gear. The motor 13 drives the support member 11 to rotate through gear transmission, thereby driving the stirring shaft 8 to rotate.

[0029] In the preferred technical solution, a strap 3 is connected to the outside of the thermal insulation outer box 1, and the strap 3 is rotatably connected to the thermal insulation outer box 1 through a pin. The strap 3 is made of nylon belt material, which is anti-fouling and wear-resistant and is used to carry the thermal insulation outer box 1.

[0030] To sum up: the blast furnace cannon mud is stored in the heat-insulating inner box 9, and the stirring shaft 8 can continuously stir the blast furnace cannon mud when it rotates and cooperate with the heating element 10 at the same time, which not only can keep the blast furnace cannon mud warm and heat it, but also the blast furnace cannon mud in the stirred state is evenly in contact with the heating element, thereby improving the comprehensiveness of heating and heat preservation. The stirring shaft 8 and the support can be quickly disassembled, and by removing the stirring shaft, it is more convenient to take out the blast furnace cannon mud inside the heat-insulating inner box. At the same time, by removing the stirring shaft, it is convenient to clean the stirring shaft and the heat-insulating inner box.

Claims

1. A heat preservation device for blast furnace taphole mud, characterized by: The invention comprises an insulating outer box (1), an outer cover (2), and an insulating inner box (9) arranged inside the insulating outer box (1); a heating element (10) is fixedly arranged at the bottom of the inner wall of the insulating inner box (9); a power controller (7) electrically connected to the heating element (10) is arranged outside the insulating outer box (1); rotating supports (11) are rotatably arranged on both sides of the inner wall of the insulating inner box (9); a stirring shaft (8) is detachably installed in the middle of the two rotating supports (11); a cavity (12) is opened on one side of the insulating outer box (1); a baffle (5) is fixedly arranged on the outside of the cavity (12) by bolts; a motor (13) for driving the support (11) to rotate is arranged inside the baffle (5); and a power supply component (6) is arranged outside the insulating outer box (1).

2. The thermal insulation device for blast furnace taphole mud according to claim 1, characterized in that: The stirring shaft (8) comprises a central shaft, block seats (801) arranged at both ends of the central shaft, and a stirring rod arranged on the circumferential surface of the central shaft.

3. The thermal insulation device for blast furnace taphole mud according to claim 2, characterized in that: A slot for accommodating the block seat (801) in an inlaid fit is provided in the middle of the support member (11), and a pressure plate (14) is detachably mounted on the top of the support member (11) via bolts.

4. The thermal insulation device for blast furnace taphole mud according to claim 1, characterized in that: A motor controller (4) for controlling the start and stop of the motor (13) is fixedly provided on the outside of the baffle (5), and a plurality of heat dissipation vertical slots are provided on the surface of the baffle (5).

5. The thermal insulation device for blast furnace taphole mud according to claim 1, characterized in that: A driven gear is coaxially provided on one side of the support member (11), and a motor shaft of the motor (13) is connected to a driving gear meshing with the driven gear.

6. The thermal insulation device for blast furnace taphole mud according to claim 1, characterized in that: The thermal insulation outer box (1) is externally connected with a binding belt (3), and the binding belt (3) is rotatably connected to the thermal insulation outer box (1) via a pin shaft.

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