Hot-metal bottle heat preservation covering agent adding device

Abstract

A hot-metal bottle heat preservation covering agent adding device comprises an operation platform, a material storage bin is installed on the operation platform, a feeding port is formed in one side of the material storage bin, a feeding chute is formed below the feeding port, a motor is installed in the middle of the upper portion of the material storage bin, a material flattening device is installed on an output shaft of the motor, and the material flattening device is arranged in the material storage bin. Two round distributing devices are arranged below the storage bin, the round distributing device located on the upper portion is welded to the lower portion of the storage bin, and the round distributing device located on the lower portion is arranged at the end of an output shaft of a motor. The device has the beneficial effects that the heat preservation covering agent is added in a differentiated manner at different positions; according to the hot-metal ladle cover forming device, the use amount of the heat preservation covering agent is minimized, meanwhile, the heat preservation effect is maximized, the cover forming situation of the hot-metal ladle is reduced, a highly-integrated automatic control system is adopted, the complexity and labor intensity of manual operation are remarkably reduced, and the operation efficiency and safety are improved.

Description

Technical Field

[0001] The utility model relates to the field of iron and steel smelting equipment, and particularly relates to a device for adding a hot metal ladle heat preservation covering agent. Background Art

[0002] Adding a heat preservation covering agent (such as carbonized rice husk, coke powder, etc.) to the hot metal ladle is an effective means to reduce the temperature drop of the molten iron in the ladle. At the same time, it can effectively prevent the solidification and crust formation of the iron slag on the upper layer of the hot metal and the smoke emission of the hot metal ladle. Currently, the common method of adding a heat preservation covering agent to the hot metal ladle is that after the hot metal ladle receives the hot metal and runs to the designated area, an operator manually puts the heat preservation covering agent weighing 20 kg / bag onto the center of the molten iron surface through a preset chute, and relies on its spreading ability to cover the molten iron surface. This method results in a thicker covering layer in the central area of the molten iron surface, while the edge area is thinner, and the heat preservation effect of the molten iron in direct contact with the edge of the ladle body is poor. The rapid temperature drop of the molten iron in the edge area not only promotes the mixing and solidification of the slag and the molten iron, but these mixtures adhere to the inner wall of the hot metal ladle, forming a difficult-to-treat capping phenomenon, which seriously threatens the safety during the subsequent process of pouring the molten iron into the converter. In addition, when dealing with such capping problems, it is often necessary to strongly clean the hot metal ladle, and this process is extremely likely to damage the refractory material of the ladle body, thereby shortening the service life of the hot metal ladle and increasing the maintenance cost.

[0003] Chinese Patent CN 218744736 U discloses a device for adding a heat preservation covering agent in front of the furnace. This patent sets a rotatable chute on the front platform of the furnace, so that the heat preservation covering agent is evenly added to the molten iron surface in the hot metal ladle. However, the device can only add the covering agent to a fixed circle on the molten iron surface through the rotatable chute. The heat preservation effect is better around, but the heat preservation effect in the middle is poor. If you want to improve the heat preservation effect in the middle, you need to increase the usage amount of the heat preservation covering agent.

[0004] Chinese Patent CN 216263370 U discloses a device for adding a heat preservation agent to a hot metal ladle, including a spraying component, a bracket and a bin. The spraying device includes an air cannon, a spraying horn, a dispersion plate and an equalizing block. The heat preservation agent is sprayed onto the molten iron surface through the air cannon, which has the characteristics of accurate throwing and uniform spreading. However, when the device sprays the heat preservation agent through the air cannon, it is easy to cause dust. Content of the Utility Model

[0005] The purpose of the utility model is to provide a device for adding a heat preservation covering agent to a hot metal ladle in view of the deficiencies and defects in the prior art. This device adds the heat preservation covering agent with differences at different positions. It not only ensures that the usage amount of the heat preservation covering agent is minimized, but also maximizes its heat preservation effect, reduces the capping situation of the hot metal ladle, and adopts a highly integrated automatic control system, significantly reducing the complexity and labor intensity of manual operation, and improving the operation efficiency and safety.

[0006] To achieve the above object, the present utility model adopts the following technical solutions: A molten iron ladle thermal insulation covering agent adding device, which includes an operation platform 5, a storage bin 4 is installed on the operation platform 5, a feeding port 1 is provided on one side of the storage bin 4, a feeding chute 2 is provided below the feeding port 1, and a motor 3 is installed in the middle above the storage bin 4. A leveling device 6 is installed on the output shaft of the motor 3, the leveling device 6 is arranged inside the storage bin 4, and a circular distributor 9 is provided below the storage bin 4. There are two circular distributors 9, and the circular distributor 9 located above is welded below the storage bin 4, and the circular distributor 9 located below is arranged at the end of the output shaft of the motor 3.

[0007] Furthermore, the outer diameters of the two circular distributors 9 are the same as the inner diameter of the molten iron ladle.

[0008] Furthermore, a number of discharging holes 901 are provided on both of the two circular distributors 9. There are 24 discharging holes 901 distributed in each circle, the central angle between adjacent discharging holes 901 in the same circle and the center of the circular distributor 9 is 15°, and the discharging holes 901 are arranged in four circles, and the diameters gradually become smaller from the outside to the inside.

[0009] Furthermore, a platform staircase 501 for facilitating the staff to add materials and inspect the equipment is installed on one side of the operation platform 5.

[0010] Furthermore, an infrared temperature measuring device 7 is installed in the middle of the outer layer of the circular distributor 9.

[0011] Furthermore, positioners 10 are installed on both sides of the operation platform 5.

[0012] After adopting the above technical solutions, the beneficial effects of the present utility model are as follows: This device adds the thermal insulation covering agent with differences at different positions. It not only ensures that the usage amount of the thermal insulation covering agent is minimized, but also maximizes its thermal insulation effect, reduces the capping situation of the molten iron ladle, and adopts a highly integrated automatic control system, significantly reducing the complexity and labor intensity of manual operation, and improving the operation efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a structural schematic diagram of the present utility model.

[0015] Figure 2 isFigure 1 Schematic cross-sectional structure diagram along A-A in [the figure].

[0016] Figure 3 is Figure 2 Schematic structure diagram of the circular distributor in [the figure].

[0017] Figure 4 is Figure 1 Corresponding top view structure diagram.

[0018] Explanation of reference numerals in the drawings: charging opening 1, feeding chute 2, electric motor 3, storage bin 4, operating platform 5, leveling device 6, infrared temperature measuring device 7, ladle car 8, circular distributor 9, positioner 10, platform staircase 501, blanking hole 901. Specific implementation manner

[0019] Refer to Figures 1-4 As shown, the technical solution adopted in this specific implementation manner is as follows: It includes an operating platform 5, on which a storage bin 4 is installed. On one side of the storage bin 4, there is a charging opening 1, and below the charging opening 1, there is a feeding chute 2. In the middle above the storage bin 4, an electric motor 3 is installed, and on the output shaft of the electric motor 3, a leveling device 6 is installed. The leveling device 6 is arranged inside the storage bin 4. Below the storage bin 4, there are two circular distributors 9. The circular distributor 9 located above is welded below the storage bin 4, and the circular distributor 9 located below is arranged at the end of the output shaft of the electric motor 3.

[0020] More specifically, the outer diameter of the two circular distributors 9 is the same as the inner diameter of the ladle.

[0021] More specifically, a number of blanking holes 901 are provided on both of the two circular distributors 9. There are 24 blanking holes 901 distributed in each circle, and the included angle between adjacent blanking holes 901 in the same circle and the center of the circular distributor 9 is 15°. And the blanking holes 901 are arranged in four circles, and the diameter gradually becomes smaller from the outside to the inside. The blanking holes 901 can enable the added heat preservation covering agent to form a covering heat preservation layer that is thicker around and thinner in the middle on the surface of the molten iron.

[0022] More specifically, on one side of the operating platform 5, a platform staircase 501 is installed to facilitate the staff to add materials and inspect the equipment.

[0023] More specifically, an infrared temperature measuring device 7 is installed in the middle of the outer layer of the circular distributor 9. The infrared temperature measuring device 7 can detect the surface temperature of the molten iron in real time and upload it to the system control center.

[0024] More specifically, positioners 10 are installed on both sides of the operating platform 5. By installing the positioners 10, when the ladle car stops, the ladle can be located directly below the circular distributor 9.

[0025] Working principle of the present utility model: The staff should first add a sufficient amount of heat-insulating covering agent into its storage bin 4 through the feeding port 1, and use the leveling device 6 to make the bulk heat-insulating covering agent in the bin evenly distributed. Then, when it is necessary to cover the molten iron with the heat-insulating covering agent, only need to transport the ladle filled with molten iron to directly below the storage bin 4 by the ladle car 8. At this time, its motor 3 will drive the circular distributor 9 located below to rotate by 7.5°, so that the material discharge holes 901 of the upper and lower circular distributors 9 are aligned, and the heat-insulating covering agent will fall onto the molten iron from the material discharge holes 901. The normal surface temperature of the molten iron is ≥1200°C. After adding the heat-insulating covering agent, the temperature decreases. When the infrared temperature measuring device 7 measures that the temperature decreases to 700°C, control the circular distributor 9 below to rotate by 7.5° through the motor 3 to close the circular distributor 9. Among them, after adding the heat-insulating covering agent, continue to transport the molten iron to the steel mill.

[0026] The above is only used to illustrate the technical solution of the present utility model and not to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present utility model, as long as they do not depart from the spirit and scope of the technical solution of the present utility model, shall be covered within the scope of the claims of the present utility model.

Claims

1. A device for adding a hot metal ladle heat-insulating covering agent, characterized in that: It includes an operating platform (5), on which a storage bin (4) is installed. There is a feeding port (1) on one side of the storage bin (4), and a feeding chute (2) is arranged below the feeding port (1). In the middle above the storage bin (4), a motor (3) is installed, and a leveling device (6) is installed on the output shaft of the motor (3). The leveling device (6) is arranged inside the storage bin (4). Below the storage bin (4), there are two circular distributors (9). The upper circular distributor (9) is welded to the lower part of the storage bin (4), and the lower circular distributor (9) is arranged at the end of the output shaft of the motor (3).

2. The addition device of the hot metal ladle heat preservation covering agent according to claim 1, characterized in that: The outer diameters of the two circular distributors (9) are the same as the inner diameter of the molten iron ladle.

3. The addition device of the hot metal ladle heat preservation covering agent according to claim 1, characterized in that: A number of discharging holes (901) are provided on each of the two circular distributors (9). There are 24 discharging holes (901) distributed in each circle. The central angle between adjacent discharging holes (901) in the same circle and the center of the circular distributor (9) is 15°. And the discharging holes (901) are arranged in four circles, and the diameters gradually become smaller from the outside to the inside.

4. The addition device of the hot metal ladle heat preservation covering agent according to claim 1, wherein: On one side of the operating platform (5), a platform staircase (501) is installed to facilitate the staff to feed materials and inspect the equipment.

5. The addition device of the hot metal ladle heat preservation covering agent according to claim 1, wherein: An infrared temperature measuring device (7) is installed in the middle of the outer layer of the circular distributor (9).

6. The adding device of the hot metal ladle heat preservation covering agent according to claim 1, characterized in that: Positioners (10) are installed on both side edges of the operating platform (5).

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