Granulation tank capable of improving slag flushing efficiency

Abstract

The utility model discloses a granulating tank capable of improving slag flushing efficiency, which comprises a granulating tank main body, a slag flushing groove is arranged at the lower end of the granulating tank main body, one end of the slag flushing groove is communicated with the inside of the granulating tank, the other end of the slag flushing groove extends outwards, an auxiliary slag flushing pipe is arranged at the top of the slag flushing groove, the auxiliary slag flushing pipe is externally connected with a water source, and an electric control valve is arranged on the auxiliary slag flushing pipe. The electric control valve is externally connected with a controller, a liquid level sensor is arranged in the granulating tank main body, and the sensor is in signal connection with the controller; the slag discharging efficiency of the water slag in the slag flushing groove is improved, the influence on blast furnace production is avoided, the problem that the field environment is influenced due to the slag overflowing phenomenon can be solved, meanwhile, the workload and the frequency of manually cleaning the water slag can be greatly reduced, and the labor intensity is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of granulation tanks, in particular to a granulation tank with high slag flushing efficiency. Background Art

[0002] Steel and iron making enterprises use blast furnaces for smelting production. The granulation tank is an auxiliary equipment of the blast furnace, which is mainly used to cool the slag of the blast furnace. The slag is flushed and cooled by flushing water, and the cooled slag is discharged from the slag flushing trough.

[0003] However, with the increase in blast furnace output, slag accumulation in the slag trough and slag overflow in the granulation tank have seriously restricted the efficiency of blast furnace iron production, and a large amount of manpower is required to clean up the overflowing slag on site. In order to ensure the efficiency of blast furnace iron production and meet production needs, it is necessary to effectively ensure the fluidity of slag in the slag trough and increase the slag discharge speed. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above-mentioned background technology and to provide a granulation tank which improves the slag flushing efficiency.

[0005] The specific technical scheme of the utility model is as follows: a granulation tank for improving slag flushing efficiency comprises a granulation tank main body, a slag flushing trough is arranged at the lower end of the granulation tank main body, one end of the slag flushing trough is connected to the inside of the granulation tank, and the other end extends outward, an auxiliary slag flushing pipe is installed on the top of the slag flushing trough, the auxiliary slag flushing pipe is externally connected to a water source, an electric control valve is installed on the auxiliary slag flushing pipe, the electric control valve is externally connected to a controller, a liquid level sensor is installed inside the granulation tank main body, and the sensor is signal-connected to the controller.

[0006] Preferably, the liquid level sensor is a laser sensor.

[0007] Preferably, the auxiliary slag flushing pipe is arranged along the direction of the slag flushing trough, and a plurality of branch pipes are provided at the bottom of the auxiliary slag flushing pipe. The bottom ends of the branch pipes extend into the slag flushing trough and are equipped with spray pipes.

[0008] Preferably, the nozzle is arranged inclined toward the outlet of the slag flushing trough.

[0009] Preferably, a cover plate is provided on the top of the slag flushing trough, a through hole is provided on the cover plate corresponding to each branch pipe, and a sealing sleeve is installed between the branch pipe and the through hole.

[0010] The beneficial effects of the utility model are as follows: the slag discharge efficiency of the water slag in the slag flushing trough is improved, the impact on blast furnace production is avoided, and the problem of the on-site environment being affected by the slag overflow phenomenon can be solved. At the same time, the workload and frequency of manual water slag cleaning can be greatly reduced, and the labor intensity is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] In the figure: 1. Granulation tank body; 2. Liquid level sensor; 3. Inspection door; 4. Auxiliary slag flushing pipe; 5. Slag flushing trough; 6. Electric control valve; 7. Branch pipe; 8. Spray pipe. DETAILED DESCRIPTION

[0013] See also Figure 1 The present embodiment is a granulation tank for improving slag flushing efficiency, comprising a granulation tank body 1, a slag flushing groove 5 is provided at the lower end of the granulation tank body 1, one end of the slag flushing groove 5 is connected to the inside of the granulation tank, and the other end extends outward, an auxiliary slag flushing pipe 4 is installed on the top of the slag flushing groove 5, the auxiliary slag flushing pipe 4 is externally connected to a water source, an electric control valve 6 is installed on the auxiliary slag flushing pipe 4, and the electric control valve 6 is externally connected to a controller, a liquid level sensor 2 is installed inside the granulation tank body 1, and the sensor is connected to the controller signal.

[0014] Preferably, the liquid level sensor 2 is a laser sensor. Preferably, the auxiliary slag flushing pipe 4 is arranged along the direction of the slag flushing trough 5, and a plurality of branch pipes 7 are provided at the bottom of the auxiliary slag flushing pipe 4, and the bottom ends of the branch pipes 7 extend into the slag flushing trough 5 and are equipped with nozzles 8.

[0015] Preferably, the nozzle 8 is arranged obliquely toward the outlet of the slag flushing trough 5. Preferably, a cover plate is provided on the top of the slag flushing trough 5, and a through hole is provided on the cover plate corresponding to each branch pipe 7, and a sealing sleeve is installed between the branch pipe 7 and the through hole.

[0016] The working principle of the utility model is as follows: the upper and lower limit values ​​of the water level in the granulation tank body 1 are set. When the water level reaches the upper limit value, it indicates that the water slag congestion in the slag flushing trough 5 is serious and the slag flushing force needs to be increased. At this time, the liquid level sensor 2 sends a signal to the controller, and the controller automatically controls the electric control valve 6 to be fully opened, thereby increasing the water flow velocity of the slag flushing water in the auxiliary slag flushing pipe 4, thereby increasing the impact force on the water slag in the slag flushing trough 5 and reducing the blockage of the water slag in the slag flushing trough 5; when the water level is lower than the lower limit value, it indicates that the water slag in the slag flushing trough 5 is discharged from the flow field. At this time, the liquid level sensor 2 sends a signal to the controller, and the controller automatically controls the electric control valve 6 to be closed.

[0017] When the slag flushing tank 5 is blocked too seriously, it is necessary to stop production for maintenance, and workers enter the granulation tank through the maintenance door to clean it.

Claims

1. A granulation tank for improving slag flushing efficiency, comprising a granulation tank body, a slag flushing groove is provided at the lower end of the granulation tank body, one end of the slag flushing groove is connected to the inside of the granulation tank, and the other end extends outward, characterized in that: An auxiliary slag flushing pipe is installed on the top of the slag flushing trough, which is externally connected to a water source. An electric control valve is installed on the auxiliary slag flushing pipe, which is externally connected to a controller. A liquid level sensor is installed inside the granulation tank body, and the sensor is connected to the controller signal.

2. The granulation tank for improving slag flushing efficiency according to claim 1, characterized in that: The liquid level sensor adopts a laser sensor.

3. The granulation tank for improving slag flushing efficiency according to claim 1, characterized in that: The auxiliary slag flushing pipe is arranged along the direction of the slag flushing trough. A plurality of branch pipes are arranged at the bottom of the auxiliary slag flushing pipe. The bottom ends of the branch pipes extend into the slag flushing trough and are equipped with spray pipes.

4. The granulation tank for improving slag flushing efficiency according to claim 3 is characterized in that: The nozzle is arranged obliquely toward the outlet of the slag flushing trough.

5. The granulation tank for improving slag flushing efficiency according to claim 3 is characterized in that: A cover plate is provided on the top of the slag flushing trough, a through hole is provided on the cover plate corresponding to each branch pipe, and a sealing sleeve is installed between the branch pipe and the through hole.

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