Efficient water gap heating and heat preservation device

Abstract

The utility model discloses an efficient nozzle heating and heat preservation device which comprises a furnace body, heating rods are fixedly connected to the inner wall of the furnace body, pulleys are installed at the bottom of the furnace body, a bottom plate is arranged at the bottom of the furnace body, a fixing frame is fixedly connected to the bottom plate, a chain wheel shaft is rotationally connected to the inner side of the fixing frame, and a chain is arranged on the outer wall of the chain wheel shaft in a sleeved mode. The chain is fixedly connected with the bottom of the furnace frame, a sliding rail is arranged on the bottom plate, the sliding rail corresponds to the pulley in position, the pulley is inserted into the sliding rail, the pulley is in sliding connection with the sliding rail, one end of the furnace body is in sliding connection with the furnace frame, a placing frame is in sliding connection with the furnace frame, a steel ladle nozzle is formed in the placing frame, and a circulating fan is arranged on the top side of the furnace body. The top end of the circulating fan is connected with a circulating pipe, and one end of the circulating pipe is connected with the bottom side of the furnace body. The device is provided with the heating rod, and the heating rod adopts an electric heating mode, so that the heat efficiency is high, and the effect of zero carbon emission can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel smelting, in particular to a high-efficiency nozzle heating and heat preservation device. 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. The vast majority of modern ironmaking uses blast furnace ironmaking, with a few using direct reduction ironmaking and electric furnace ironmaking. Steelmaking mainly uses pig iron made in blast furnaces, sponge iron made 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 process of steel plants. The ladle nozzle is made of ceramic material and should reach about 800°C when in use. Therefore, the nozzle has been in a heating and insulation state before use. The traditional heating and insulation measure for the nozzle is to burn gas for 24 hours, consuming about 350 cubic meters of gas per hour on average, which greatly wastes energy and increases carbon emissions. Therefore, improvements are needed. Utility Model Content

[0004] The utility model aims to provide a high-efficiency nozzle heating and heat preservation device to solve the problem of low efficiency and high energy consumption of the ladle nozzle heating method using burning coal gas proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency sprue heating and heat preservation device, comprising a furnace body, a heating rod is fixedly connected to the inner wall of the furnace body, a furnace frame is slidably connected to one end of the furnace body, a placement rack is slidably connected to the furnace frame, a ladle sprue is arranged on the placement rack, a circulating fan is arranged on the top side of the furnace body, a circulating pipe is connected to the top end of the circulating fan, and one end of the circulating pipe is connected to the bottom side of the furnace body.

[0006] Preferably, a pulley is installed at the bottom of the furnace body, a bottom plate is provided at the bottom of the furnace body, and a slide rail is provided on the bottom plate.

[0007] Preferably, the slide rail and the pulley are positioned correspondingly, the pulley is inserted inside the slide rail, and the pulley and the slide rail form a sliding connection.

[0008] Preferably, a fixing frame is fixedly connected to the bottom plate, a sprocket shaft is rotatably connected to the inner side of the fixing frame, a chain is sleeved on the outer wall of the sprocket shaft, and the chain is fixedly connected to the bottom of the furnace frame.

[0009] Preferably, a second motor is fixedly connected to one side of the fixing frame, and a shaft of the second motor is connected to one side of the sprocket shaft.

[0010] Preferably, a drive shaft is rotatably connected to the inner side of the grate, one end of the drive shaft is connected to a placement rack, a polygonal groove is opened at the bottom of the drive shaft, a support platform is provided at the bottom of the grate, a first motor is fixedly connected to the support platform, and one end of the first motor shaft is inserted into the polygonal groove of the drive shaft.

[0011] Preferably, an annular slide groove is opened on the inner side of the furnace frame, and a support rod is fixedly connected to the bottom of the placement frame, one end of the support rod is inserted into the annular slide groove, and the support rod is slidably connected to the furnace frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) This device is equipped with a heating rod, which adopts electric heating method, which not only has high thermal efficiency, but also can achieve zero carbon emission effect.

[0014] (2) The device arranges a heating rod on the inner wall of the furnace body, and arranges a circulation pipe and a circulation fan on the top of the furnace body, and connects one end of the circulation pipe to the bottom side of the furnace body. In this way, the efficiency of heating and heat preservation can be improved by using hot air circulation while using electric heating to heat and keep warm.

[0015] (3) The device is provided with a furnace frame which can automatically move in and out inside the furnace body, and an automatically rotating placement rack is provided on the furnace frame. The rotation of the placement rack can make the ladle water outlet on the placement rack fully contact with the hot air, thereby improving the efficiency of heating and heat preservation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a high-efficiency nozzle heating and heat preservation device of the utility model;

[0017] Figure 2 This is a side view of a furnace body of a high-efficiency water nozzle heating and heat preservation device of the utility model;

[0018] Figure 3 This is a side view of a furnace frame of a high-efficiency water nozzle heating and heat preservation device of the utility model;

[0019] Figure 4 The utility model is a top view of a furnace frame of a high-efficiency water nozzle heating and heat preservation device.

[0020] In the figure: 1. pulley; 2. slide rail; 3. bottom plate; 4. support platform; 5. first motor; 6. drive shaft; 7. chain; 8. sprocket shaft; 9. circulation pipe; 10. circulation fan; 11. furnace body; 12. furnace frame; 13. fixed frame; 14. second motor; 15. heating rod; 16. placement frame; 17. ladle water outlet; 18. support rod. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 The utility model provides a technical solution: a high-efficiency water nozzle heating and heat preservation device, including a furnace body 11, a heating rod 15 is fixedly connected to the inner wall of the furnace body 11, the heating rod 15 can be controlled by PLC, which is convenient for controlling the temperature and achieving the purpose of energy saving. A pulley 1 is installed at the bottom of the furnace body 11, a bottom plate 3 is arranged at the bottom of the furnace body 11, and a slide rail 2 is arranged on the bottom plate 3; the slide rail 2 corresponds to the position of the pulley 1, the pulley 1 is inserted inside the slide rail 2, and the pulley 1 and the slide rail 2 form a sliding connection; this structure can improve the stability of the furnace frame 12 when it moves by arranging the slide rail 2 and the pulley 1; a fixing frame 13 is fixedly connected to the bottom plate 3, A sprocket shaft 8 is rotatably connected to the inner side of the fixed frame 13, and a chain 7 is sleeved on the outer wall of the sprocket shaft 8, and the chain 7 is fixedly connected to the bottom of the furnace frame 12; a second motor 14 is fixedly connected to one side of the fixed frame 13, and the shaft of the second motor 14 is connected to one side of the sprocket shaft 8; the sprocket shaft 8 of this structure is composed of a shaft body and a gear combination, and the sprocket shaft 8 can be driven to rotate by the second motor 14, and the sprocket shaft 8 drives the chain 7 to move during the rotation process, thereby realizing the movement of the furnace frame 12, which is convenient for controlling the furnace frame 12 to enter and exit the furnace body 11; one end of the furnace body 11 is slidably connected to the furnace frame 12, and the inner side of the furnace frame 12 is rotatably connected to the drive shaft 6, and one end of the drive shaft 6 A placement rack 16 is connected, a polygonal groove is provided at the bottom of the driving shaft 6, a support platform 4 is provided at the bottom of the furnace rack 12, a first motor 5 is fixedly connected to the support platform 4, and one end of the first motor 5 shaft is inserted in the polygonal groove of the driving shaft 6; the first motor 5 of this structure can drive the driving shaft 6 and the placement rack 16 to rotate, and the first motor 5 and the driving shaft 6 are a splicing structure, and the first motor 5 can be disassembled and assembled in advance when moving the furnace rack 12; the rotation of the placement rack 16 can drive the ladle water inlet 17 on the placement rack 16 to contact with the hot air evenly, thereby improving the heating efficiency; an annular slide groove is provided on the inner side of the furnace rack 12, and the placement rack A support rod 18 is fixedly connected to the bottom of 16, one end of the support rod 18 is inserted into the annular slide groove, and the support rod 18 is slidably connected to the furnace frame 12; this structure can improve the stability of the placement frame 16 during rotation by arranging the support rod 18; the placement frame 16 is slidably connected to the furnace frame 12, and the placement frame 16 is provided with a ladle water inlet 17, and a circulating fan 10 is provided on the top side of the furnace body 11, and the top of the circulating fan 10 is connected to the circulating pipe 9, and one end of the circulating pipe 9 is connected to the bottom side of the furnace body 11; the heating rod 15 of the device is a silicon carbon rod, and the heating rod 15 is electrically heated, with high thermal efficiency, and at the same time achieves the purpose of zero carbon emissions.

[0023] Working principle: When using the high-efficiency nozzle heating and insulation device, first insert the ladle nozzle 17 into the placement frame 16, then start the second motor 14, the second motor 14 drives the sprocket shaft 8 to drive the chain 7 to rotate, and the chain 7 pushes the grate 12 to slowly enter the furnace body 11 during the rotation. When the grate 12 enters the furnace body 11, insert the shaft of the first motor 5 into the bottom of the drive shaft 6, then support the support platform 4 at the bottom of the first motor 5, and use bolts to fix the first motor 5 and the support platform 4, and finally start the first motor 5. The heating rod 15 and the circulating fan 10. After the heating rod 15 is started, the temperature inside the furnace body 11 is increased and the ladle nozzle 17 is heated. The circulating fan 10 drives the heat inside the furnace body 11 to be discharged from one end of the circulating pipe 9 and re-input into the furnace body 11 from the other end of the circulating pipe 9 to improve the circulation of the hot air inside the furnace body 11. The first motor 5 can drive the placement rack 16 on the furnace frame 12 to rotate. During the rotation of the placement rack 16, the ladle nozzle 17 is fully in contact with the hot air to improve the efficiency of heating and heat preservation of the ladle nozzle 17.

[0024] 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 high-efficiency nozzle heating and heat preservation device, comprising a furnace body (11), characterized in that: A heating rod (15) is fixedly connected to the inner wall of the furnace body (11); a furnace frame (12) is slidably connected to one end of the furnace body (11); a placement frame (16) is slidably connected to the furnace frame (12); a ladle water outlet (17) is arranged on the placement frame (16); a circulation fan (10) is arranged on the top side of the furnace body (11); a circulation pipe (9) is connected to the top end of the circulation fan (10); and one end of the circulation pipe (9) is connected to the bottom side of the furnace body (11).

2. A high-efficiency nozzle heating and heat preservation device according to claim 1, characterized in that: A pulley (1) is installed at the bottom of the furnace body (11), a bottom plate (3) is arranged at the bottom of the furnace body (11), and a slide rail (2) is arranged on the bottom plate (3).

3. A high-efficiency nozzle heating and heat preservation device according to claim 2, characterized in that: The slide rail (2) and the pulley (1) correspond in position, the pulley (1) is inserted into the slide rail (2), and the pulley (1) and the slide rail (2) form a sliding connection.

4. The high-efficiency nozzle heating and heat preservation device according to claim 2, characterized in that: A fixing frame (13) is fixedly connected to the bottom plate (3), a sprocket shaft (8) is rotatably connected to the inner side of the fixing frame (13), a chain (7) is sleeved on the outer wall of the sprocket shaft (8), and the chain (7) is fixedly connected to the bottom of the furnace frame (12).

5. A high-efficiency nozzle heating and heat preservation device according to claim 4, characterized in that: A second motor (14) is fixedly connected to one side of the fixing frame (13), and a shaft of the second motor (14) is connected to one side of the sprocket shaft (8).

6. The high-efficiency nozzle heating and heat preservation device according to claim 1, characterized in that: A driving shaft (6) is rotatably connected to the inner side of the furnace frame (12); one end of the driving shaft (6) is connected to a placement frame (16); a polygonal groove is provided at the bottom of the driving shaft (6); a support platform (4) is provided at the bottom of the furnace frame (12); a first motor (5) is fixedly connected to the support platform (4); and one end of the shaft of the first motor (5) is inserted into the polygonal groove of the driving shaft (6).

7. The high-efficiency nozzle heating and heat preservation device according to claim 1, characterized in that: An annular sliding groove is provided on the inner side of the furnace frame (12); a support rod (18) is fixedly connected to the bottom of the placement frame (16); one end of the support rod (18) is inserted into the annular sliding groove; the support rod (18) and the furnace frame (12) are slidably connected.

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