Novel water gap heating and heat preservation structure

Abstract

The utility model discloses a novel nozzle heating and heat preservation structure which comprises a heat preservation assembly, the heat preservation assembly comprises a steel ladle nozzle body, two sets of grooves are formed in the top of the steel ladle nozzle body, and the positions of the two sets of grooves in the steel ladle nozzle body correspond to the positions of through holes of a sealing cover and the positions of the grooves respectively. A sealing layer and a sealing ring are arranged in the two sets of grooves of the ladle nozzle body respectively, a heating cavity is formed in the outer wall of the ladle nozzle body, a vacuum layer is arranged on the outer wall of the heating cavity, heat preservation bricks are arranged on the outer wall of the vacuum layer, a sealing cover is arranged at one end of the ladle nozzle body, a through hole is formed in the sealing cover, and a groove is formed in the bottom of the sealing cover. The groove is located in the inner side of the through hole, and a pressurizing assembly is arranged at the top of the sealing cover. The pressurizing assembly comprises a fixing frame fixed to the outer wall of the heat preservation brick, a threaded rod is slidably connected to the fixing frame, and one end of the threaded rod is rotationally connected with the sealing cover. The device can improve the thermal insulation performance of the ladle nozzle body, so that the steel casting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel smelting, in particular to a novel nozzle heating and heat preservation structure. Background Art

[0002] Steelmaking is a general term for the metallurgical process of steel and iron. Industrially produced iron is divided into pig iron (carbon content above 2%) and steel (carbon content below 2%) according to its carbon content. Steelmaking mainly uses pig iron produced in blast furnaces, sponge iron produced by direct reduction ironmaking, and scrap steel as raw materials, and steel is made using different methods.

[0003] The ladle nozzle is needed in the steel smelting and manufacturing process. At present, the ladle nozzle is mainly insulated by setting insulation bricks to ensure the insulation effect of the ladle nozzle. However, the insulation effect is low only by using insulation bricks, which can easily cause the temperature of the molten steel inside the ladle nozzle to drop rapidly, affecting the casting efficiency. Utility Model Content

[0004] The utility model aims to provide a novel nozzle heating and heat-insulating structure to solve the problem of poor heat-insulating performance of the ladle nozzle proposed in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel nozzle heating and heat preservation structure, comprising a heat preservation component, wherein the heat preservation component comprises a ladle nozzle body, the outer wall of the ladle nozzle body is provided with a heating cavity, the outer wall of the heating cavity is provided with a vacuum layer, the outer wall of the vacuum layer is provided with heat preservation bricks, one end of the ladle nozzle body is provided with a sealing cover, and the top of the sealing cover is provided with a pressurizing component;

[0006] The pressurizing component comprises a fixing frame fixed on the outer wall of the heat-insulating brick, a threaded rod is slidably connected to the fixing frame, and one end of the threaded rod is rotatably connected to the sealing cover.

[0007] Preferably, a through hole is formed on the sealing cover, and a groove is formed at the bottom of the sealing cover, and the groove is located inside the through hole.

[0008] Preferably, two groups of grooves are provided on the top of the ladle nozzle body, and the positions of the two groups of grooves on the ladle nozzle body correspond to the positions of the through holes and grooves of the sealing cover respectively.

[0009] Preferably, a sealing layer and a sealing ring are respectively arranged inside the two groups of grooves of the ladle nozzle body, and the material of the sealing layer is fire clay.

[0010] Preferably, a through hole is provided on the fixing frame, a limiting rod is inserted into the through hole, and one end of the limiting rod is fixedly connected to the sealing cover.

[0011] Preferably, the sealing covers are located on both sides of the threaded rod, and the threaded rod is threadedly connected to the fixing frame.

[0012] Preferably, the surface of the insulation brick is coated with insulation paint to improve the insulation performance.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) This device can improve the thermal insulation performance of the ladle nozzle body, thereby improving the efficiency of steel casting.

[0015] (2) The device seals the ladle nozzle body by arranging a sealing cover on the top of the ladle nozzle body, and arranging a sealing layer and a sealing ring between the ladle nozzle body and the sealing cover to improve the sealing between the ladle nozzle body and the sealing cover, thereby improving a part of the thermal insulation performance. At the same time, a vacuum layer, thermal insulation bricks and thermal insulation paint are arranged on the outer wall of the ladle nozzle body, thereby improving the thermal insulation of the ladle nozzle body, thereby improving the efficiency of steel casting.

[0016] (3) The device is provided with a pressure component on the top of the sealing cover. By rotating the threaded rod of the pressure component, the threaded rod can drive the sealing cover to rise and fall during the rotation and lifting process, thereby not only controlling the opening and closing of the sealing cover but also ensuring the sealing performance between the sealing cover and the ladle nozzle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a novel nozzle heating and heat preservation structure of the utility model;

[0018] Figure 2 This is a cross-sectional view of a novel nozzle heating and heat preservation structure of the utility model;

[0019] Figure 3 The utility model is a new type of water nozzle heating and heat preservation structure Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 It is a top view of a ladle nozzle body with a novel nozzle heating and heat preservation structure according to the utility model.

[0021] In the figure: 1. Sealing cover; 2. Insulation assembly; 21. Vacuum layer; 22. Insulation bricks; 23. Heating chamber; 24. Ladle nozzle body; 25. Sealing layer; 26. Sealing ring; 3. Pressurizing assembly; 31. Limit rod; 32. Threaded rod; 33. Fixing frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a novel nozzle heating and heat-insulating structure, including a heat-insulating component 2, the heat-insulating component 2 includes a ladle nozzle body 24, the outer wall of the ladle nozzle body 24 is provided with a heating cavity 23, a heating device or a heating medium can be provided inside the heating cavity 23 for heating the device, such as a heating pipe, etc., a vacuum layer 21 is provided on the outer wall of the heating cavity 23, and a heat-insulating brick 22 is provided on the outer wall of the vacuum layer 21, a sealing cover 1 is provided at one end of the ladle nozzle body 24, a through hole is provided on the sealing cover 1, a groove is provided at the bottom of the sealing cover 1, and the groove is located on the inner side of the through hole; the ladle nozzle body 24 Two groups of grooves are provided on the top, and the positions of the two groups of grooves on the ladle nozzle body 24 correspond to the through holes and groove positions of the sealing cover 1 respectively; this structure can seal the top of the ladle nozzle body 24 through the sealing cover 1, thereby reducing the outflow of heat from the inside of the ladle nozzle body 24; a sealing layer 25 and a sealing ring 26 are respectively provided inside the two groups of grooves of the ladle nozzle body 24, and the material of the sealing layer 25 is fire clay; this structure can improve the sealing performance of the connection between the ladle nozzle body 24 and the sealing cover 1 by providing the sealing layer 25 and the sealing ring 26, thereby improving the thermal insulation performance; a pressurizing component 3 is provided on the top of the sealing cover 1;

[0024] The pressurizing assembly 3 includes a fixing frame 33 fixed to the outer wall of the insulation brick 22, and the surface of the insulation brick 22 is coated with insulation paint to improve the insulation performance; this structure can improve the insulation performance of the ladle nozzle body 24 by setting the insulation brick 22 and the insulation paint; a through hole is opened on the fixing frame 33, and a limit rod 31 is inserted into the through hole, and one end of the limit rod 31 is fixedly connected to the sealing cover 1; this structure can limit the rotation of the sealing cover 1 by setting the limit rod 31, so that the sealing cover 1 can only move longitudinally ; The sealing cover 1 is located on both sides of the threaded rod 32, and the threaded rod 32 and the fixing frame 33 form a threaded connection; this structure can drive the sealing cover 1 to move longitudinally by rotating the threaded rod 32, thereby controlling the contact or separation of the sealing cover 1 and the ladle nozzle body 24; a threaded rod 32 is slidably connected to the fixing frame 33, and one end of the threaded rod 32 is rotatably connected to the sealing cover 1; by setting the threaded rod 32, the stability of the connection between the sealing cover 1 and the ladle nozzle body 24 can be guaranteed after the sealing cover 1 is connected to the ladle nozzle body 24.

[0025] Working principle: When using the new nozzle heating and insulation structure, first put the sealing ring 26 into the top groove of the ladle nozzle body 24, then rotate the threaded rod 32 to make the threaded rod 32 rotate and descend on the fixing frame 33, and the threaded rod 32 drives the sealing cover 1 to contact with the ladle nozzle body 24 during the descent. At this time, the upper end of the sealing ring 26 is inserted into the bottom groove of the sealing cover 1, and then the fire mud is filled into the sealing cover 1 and the top groove of the ladle nozzle body 24 from the through hole on the sealing cover 1. At this time, the sealing performance between the sealing cover 1 and the ladle nozzle body 24 can be improved. During the use of the device, the vacuum layer 21, the insulation bricks 22 and the insulation paint can insulate the molten steel inside the ladle nozzle body 24, thereby extending the cooling time of the molten steel inside the ladle nozzle body 24 and improving the efficiency of steel casting.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel nozzle heating and heat preservation structure, comprising a heat preservation component (2), characterized in that: The heat-insulating component (2) comprises a ladle nozzle body (24), the outer wall of the ladle nozzle body (24) is provided with a heating chamber (23), the outer wall of the heating chamber (23) is provided with a vacuum layer (21), the outer wall of the vacuum layer (21) is provided with heat-insulating bricks (22), a sealing cover (1) is provided at one end of the ladle nozzle body (24), and a pressurizing component (3) is provided on the top of the sealing cover (1); The pressurizing assembly (3) comprises a fixing frame (33) fixed to the outer wall of the insulation brick (22), a threaded rod (32) being slidably connected to the fixing frame (33), and one end of the threaded rod (32) being rotatably connected to the sealing cover (1).

2. A novel nozzle heating and heat preservation structure according to claim 1, characterized in that: The sealing cover (1) is provided with a through hole, and the bottom of the sealing cover (1) is provided with a groove, wherein the groove is located on the inner side of the through hole.

3. A novel nozzle heating and heat preservation structure according to claim 1, characterized in that: Two groups of grooves are provided on the top of the ladle nozzle body (24), and the positions of the two groups of grooves on the ladle nozzle body (24) correspond to the positions of the through holes and grooves of the sealing cover (1), respectively.

4. A novel nozzle heating and heat preservation structure according to claim 1, characterized in that: A sealing layer (25) and a sealing ring (26) are respectively arranged inside the two groups of grooves of the ladle nozzle body (24), and the material of the sealing layer (25) is fire clay.

5. A novel nozzle heating and heat preservation structure according to claim 1, characterized in that: The fixing frame (33) is provided with a through hole, a limiting rod (31) is inserted into the through hole, and one end of the limiting rod (31) is fixedly connected to the sealing cover (1).

6. A novel nozzle heating and heat preservation structure according to claim 1, characterized in that: The sealing cover (1) is located on both sides of the threaded rod (32), and the threaded rod (32) and the fixing frame (33) are threadedly connected.

7. A novel nozzle heating and heat preservation structure according to claim 1, characterized in that: The surface of the thermal insulation brick (22) is coated with thermal insulation paint to improve thermal insulation performance.

Images