A device for slowing the solidification of molten steel slag

Abstract

The utility model relates to a steel slag technical field, concretely relates to a device for slowing down the solidification of molten steel slag, including the heat preservation cylinder, the arc outer surface fixed sleeve of heat preservation cylinder has the heat storage box, the inner wall fixed mounting of heat preservation cylinder has the slowing down mechanism, the inner wall fixed sleeve of heat storage box has the preheating mechanism, the slowing down mechanism includes the first cavity, the heat preservation layer, the heat conduction piece, the thermometer, the steel slag jar, the installation mouth and the feed pipe, the first cavity sets up in the inner wall of heat preservation cylinder, the surface all fixed mounting of heat conduction piece is in the inner wall of heat preservation cylinder, the surface fixed mounting of thermometer is in the arc outer surface of heat preservation cylinder. The utility model, through the discharge pipe can adjust according to the temperature required by steel slag jar, when the temperature is too high, can gradually discharge the redundant heat outward, and under the action of heat preservation layer, heat conduction piece and heat conduction ring, avoid the rapid loss of heat, cause the steel slag particle surface rough, the phenomenon that the granularity is more fine and small distribution is uneven.

Description

Technical Field

[0001] This utility model relates to the field of steel slag technology, specifically to a device for slowing down the solidification of molten steel slag. Background Technology

[0002] Steel slag is a byproduct of the steelmaking process. It consists of various oxides formed by the oxidation of impurities such as silicon, manganese, phosphorus, and sulfur in pig iron during smelting, as well as salts formed by the reaction of these oxides with the solvent. Steel slag contains several useful components: 2%–8% metallic iron, 40%–60% calcium oxide, 3%–10% magnesium oxide, and 1%–8% manganese oxide, thus it can be used as a raw material in iron and steel metallurgy. The mineral composition of steel slag is mainly tricalcium silicate, followed by dicalcium silicate, RO phase, dicalcium ferrite, and free calcium oxide. Steel slag is a clinker, a remelted phase, with a low melting temperature. During remelting, the liquid phase forms early and has good fluidity. Steel slag is classified into three types: electric furnace steel slag, open-hearth furnace steel slag, and converter steel slag.

[0003] Rapid cooling of steel slag may cause a large temperature gradient inside the slag, resulting in an uneven microstructure. This can lead to cracks or internal stress concentration, affecting its subsequent processing and performance. Rapid solidification may also make the particle surface rougher, the particle size smaller, and the distribution uneven.

[0004] Therefore, a device for slowing down the solidification of molten steel slag is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a device for slowing down the solidification of molten steel slag, which can solve the problem that rapid solidification may result in rougher particle surfaces, finer particle sizes, and uneven particle distribution.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A device for slowing down the solidification of molten steel slag in this embodiment includes a heat-insulating cylinder. A heat storage box is fixedly sleeved on the arc-shaped outer surface of the heat-insulating cylinder. A slowing mechanism is fixedly installed on the inner wall of the heat-insulating cylinder. A preheating mechanism is fixedly sleeved on the inner wall of the heat storage box. The slowing mechanism includes a first cavity, a heat-insulating layer, heat-conducting sheets, a thermometer, a steel slag container, an installation port, and a feed pipe. The first cavity is opened on the inner wall of the heat-insulating cylinder. The surfaces of the heat-conducting sheets are all fixedly installed on the inner wall of the heat-insulating cylinder. The surface of the thermometer is fixedly installed on the arc-shaped outer surface of the heat-insulating cylinder. The test end of the thermometer penetrates the inner wall of the heat-insulating cylinder and communicates with the first cavity.

[0007] Preferably, the surface of the slag tank is fixedly fitted onto the inner wall of the insulation cylinder, and the installation port is opened on the upper end face of the slag tank.

[0008] Preferably, the installation port is located at the center of the upper end face of the slag tank, and the bottom end of the feed pipe is fixedly installed on the upper end face of the slag tank.

[0009] Preferably, the bottom end of the feed pipe is fixedly installed at the center of the upper end of the slag tank, and the bottom end of the feed pipe is connected to the slag tank.

[0010] Preferably, the preheating mechanism includes a second cavity, a heat-conducting ring, a protective pad, a charging port, a controller, a hot air blower, a discharge pipe, and a solenoid valve. The arc-shaped outer surface of the insulation layer is fixedly installed on the inner wall of the insulation cylinder, the arc-shaped outer surface of the discharge pipe is fixedly installed on the inner wall of the heat storage box, the surface of the solenoid valve is fixedly sleeved on the inner wall of the discharge pipe, the left side of the hot air blower is fixedly installed on the arc-shaped outer surface of the heat storage box, one side of the controller is fixedly installed on the arc-shaped outer surface of the heat storage box, the upper end face of the protective pad is fixedly installed on the lower end face of the heat storage box, and the surface of the heat-conducting ring is fixedly installed on the inner wall of the heat storage box.

[0011] Preferably, the air delivery end of the hot air blower is connected to the second cavity, and the charging port is located on the front of the hot air blower.

[0012] Preferably, the lower end face of the heat storage box is fixedly installed at the center of the upper end face of the protective pad, and the first cavity and the second cavity are connected.

[0013] Compared with the prior art, this utility model provides a device for slowing down the solidification of molten steel slag, which has the following beneficial effects:

[0014] 1. The discharge pipe can be adjusted according to the temperature required by the steel slag tank. When the temperature is too high, the excess heat can be gradually discharged to the outside. With the help of the insulation layer, heat-conducting plate and heat-conducting ring, the rapid loss of heat is prevented, which would cause the steel slag particles to become rough, smaller and unevenly distributed.

[0015] 2. The temperature inside the device can be detected in real time by a thermometer, and adjustments can be made in a timely manner by delivering hot air to the first and second cavities to ensure the normal requirements of the steel slag and the stability of the steel slag. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the heat insulation cylinder of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the steel slag tank of this utility model;

[0019] Figure 4 This is a side view of the thermal insulation cylinder of this utility model.

[0020] In the diagram: 1. Insulation cylinder; 2. Heat storage box; 3. Hot air blower; 4. Discharge pipe; 5. Heat-conducting ring; 6. First cavity; 7. Heat-conducting sheet; 8. Thermometer; 9. Insulation layer; 10. Slag hopper; 11. Feed pipe; 12. Protective pad; 13. Controller; 14. Charging port. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example:

[0023] Please see Figure 1 - Figure 4 This embodiment of a device for slowing down the solidification of molten steel slag includes an insulation cylinder 1, a heat storage box 2 fixedly sleeved on the arc-shaped outer surface of the insulation cylinder 1, a slowing mechanism fixedly installed on the inner wall of the insulation cylinder 1, and a preheating mechanism fixedly sleeved on the inner wall of the heat storage box 2. The slowing mechanism includes a first cavity 6, an insulation layer 9, heat-conducting plates 7, a thermometer 8, a steel slag can 10, an installation port, and a feed pipe 11. The first cavity 6 is opened on the inner wall of the insulation cylinder 1. The surfaces of the heat-conducting plates 7 are all fixedly installed on the inner wall of the insulation cylinder 1. The surface of the thermometer 8 is fixedly installed on the arc-shaped outer surface of the insulation cylinder 1. The test end of the thermometer 8 penetrates the inner wall of the insulation cylinder 1 and is connected to the first cavity 6.

[0024] The temperature in the first cavity 6 and the second cavity can be detected in real time by thermometer 8, so that the staff can make timely adjustments to the temperature in the insulation cylinder 1 and the heat storage box 2 based on the data detected by thermometer 8. One section of the steel slag tank 10 is connected by a thread.

[0025] The surface of the steel slag tank 10 is fixedly sleeved on the inner wall of the insulation cylinder 1, and the installation port is opened on the upper end face of the steel slag tank 10.

[0026] The installation port is located at the center of the upper end face of the slag tank 10, and the bottom end of the feed pipe 11 is fixedly installed on the upper end face of the slag tank 10.

[0027] The bottom end of the feed pipe 11 is fixedly installed at the center of the upper end of the slag tank 10, and the bottom end of the feed pipe 11 is connected to the slag tank 10.

[0028] The preheating mechanism includes a second cavity, a heat-conducting ring 5, a protective pad 12, a charging port 14, a controller 13, a hot air blower 3, an exhaust pipe 4, and a solenoid valve. The arc-shaped outer surface of the insulation layer 9 is fixedly installed on the inner wall of the insulation cylinder 1. The arc-shaped outer surface of the exhaust pipe 4 is fixedly installed on the inner wall of the heat storage box 2. The surface of the solenoid valve is fixedly sleeved on the inner wall of the exhaust pipe 4. The left side of the hot air blower 3 is fixedly installed on the arc-shaped outer surface of the heat storage box 2. One side of the controller 13 is fixedly installed on the arc-shaped outer surface of the heat storage box 2. The upper end face of the protective pad 12 is fixedly installed on the lower end face of the heat storage box 2. The surface of the heat-conducting ring 5 is fixedly installed on the inner wall of the heat storage box 2.

[0029] During startup, the solenoid valve can discharge the temperature in the first cavity 6 and the second cavity to the outside through the discharge pipe 4, preventing the temperature in the insulation cylinder 1 and the heat storage box 2 from becoming too high. The controller 13 can intelligently control the equipment between the devices and drive them to shut down. The controller 13 is model ST89C51, the solenoid valve is model TEC-1, and the hot air blower 3 is model HNF-2049B. The controller 13, the solenoid valve, and the hot air blower 3 are well known technologies to those skilled in the art, and therefore are not described in detail in this embodiment.

[0030] The air delivery end of the hot air blower 3 is connected to the second cavity, and the charging port 14 is located on the front of the hot air blower 3.

[0031] By setting up charging port 14, staff can use a charger to plug into charging port 14 to power the hot air blower 3 and enable the hot air blower 3 to work normally.

[0032] Among them, the lower end face of the heat storage box 2 is fixedly installed at the center of the upper end face of the protective pad 12, and the first cavity 6 and the second cavity are connected.

[0033] By setting up the protective pad 12, the bottom of the thermal storage box 2 can be prevented from contacting the ground, thus providing protection for the bottom of the thermal storage box 2.

[0034] The working principle of the above embodiments is as follows:

[0035] During use, the temperature inside the first cavity 6 and the second cavity can be detected in real time by the thermometer 8, which facilitates the release and input of heat.

[0036] The insulation layer 9 can improve the insulation effect of the steel slag pot 10 in the insulation cylinder 1 and reduce heat loss. The heat conduction plate 7 can realize the heat transfer, ensuring that the heat on the surface of the steel slag pot 10 is more uniform and comprehensive. The thermometer 8 can be used to check if the temperature inside the insulation cylinder 1 and the heat storage box 2 is too high.

[0037] The controller 13 can intelligently control the solenoid valve, opening the solenoid valve to allow the heat from the first cavity 6 and the second cavity to be discharged from the heat storage box 2 through the discharge pipe 4, thereby adjusting the temperature. Conversely, when the temperature in the heat storage box 2 is too low and it is necessary to raise the temperature, the controller 13 will drive the hot air blower 3 to work again.

[0038] The hot air generated by the hot air blower 3 is delivered to the inner walls of the first cavity 6 and the second cavity respectively, and the heat is quickly transferred to the surface of the steel slag tank 10 through the heat conduction ring 5.

[0039] The heat-conducting sheet 7 transfers heat to the surface of the steel slag pot 10 through the insulation layer 9, realizing heat conversion and ensuring stability during the conversion process while slowing down the solidification rate of the molten steel slag.

[0040] The heat-conducting sheet 7 and the heat-conducting ring 5 are made of copper, which has a rapid heat conduction effect and can improve the heat conduction effect.

[0041] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for slowing down the solidification of molten steel slag, comprising a heat-insulating cylinder (1), wherein a heat storage box (2) is fixedly sleeved on the arc-shaped outer surface of the heat-insulating cylinder (1), characterized in that: The inner wall of the insulation cylinder (1) is fixedly equipped with a slowing mechanism, and the inner wall of the heat storage box (2) is fixedly fitted with a preheating mechanism. The slowing mechanism includes a first cavity (6), an insulation layer (9), a heat-conducting plate (7), a thermometer (8), a steel slag pot (10), an installation port, and a feed pipe (11). The first cavity (6) is opened on the inner wall of the insulation cylinder (1). The surfaces of the heat-conducting plates (7) are all fixedly installed on the inner wall of the insulation cylinder (1). The surface of the thermometer (8) is fixedly installed on the arc-shaped outer surface of the insulation cylinder (1). The test end of the thermometer (8) penetrates the inner wall of the insulation cylinder (1) and is connected to the first cavity (6).

2. The device for slowing down the solidification of molten steel slag according to claim 1, characterized in that: The surface of the slag tank (10) is fixedly sleeved on the inner wall of the insulation cylinder (1), and the installation port is opened on the upper end face of the slag tank (10).

3. The device for slowing down the solidification of molten steel slag according to claim 1, characterized in that: The installation port is located at the center of the upper end face of the slag tank (10), and the bottom end of the feed pipe (11) is fixedly installed on the upper end face of the slag tank (10).

4. The device for slowing down the solidification of molten steel slag according to claim 1, characterized in that: The bottom end of the feed pipe (11) is fixedly installed at the center of the upper end of the slag tank (10), and the bottom end of the feed pipe (11) is connected to the slag tank (10).

5. The device for slowing down the solidification of molten steel slag according to claim 1, characterized in that: The preheating mechanism includes a second cavity, a heat-conducting ring (5), a protective pad (12), a charging port (14), a controller (13), a hot air blower (3), an exhaust pipe (4), and a solenoid valve. The arc-shaped outer surface of the insulation layer (9) is fixedly installed on the inner wall of the insulation cylinder (1). The arc-shaped outer surface of the exhaust pipe (4) is fixedly installed on the inner wall of the heat storage box (2). The surface of the solenoid valve is fixedly sleeved on the inner wall of the exhaust pipe (4). The left side of the hot air blower (3) is fixedly installed on the arc-shaped outer surface of the heat storage box (2). One side of the controller (13) is fixedly installed on the arc-shaped outer surface of the heat storage box (2). The upper end face of the protective pad (12) is fixedly installed on the lower end face of the heat storage box (2). The surface of the heat-conducting ring (5) is fixedly installed on the inner wall of the heat storage box (2).

6. The apparatus for slowing down the solidification of molten steel slag according to claim 5, characterized in that: The air delivery end of the hot air blower (3) is connected to the second cavity, and the charging port (14) is located on the front of the hot air blower (3).

7. The apparatus for slowing down the solidification of molten steel slag according to claim 5, characterized in that: The lower end face of the heat storage box (2) is fixedly installed at the center of the upper end face of the protective pad (12), and the first cavity (6) and the second cavity are connected.

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