Device for reducing coke spilling of coke barrier car

Abstract

The utility model discloses a device for reducing coke spilling of a coke barrier car, which comprises a coke guide grid and a gas source, the gas source conveys gas to the tail end of the bottom of the coke guide grid through a gas guide device, the gas flow direction faces the tail end of the coke guide grid, the gas source is used for blowing out coke accumulated at the tail end of the coke guide grid, and a control valve is arranged on the gas guide device. A stroke sensor is arranged on the coke guide grid and used for measuring a stroke signal of the coke guide grid, the stroke signal is transmitted to a control unit of the control valve, and a downward inclination angle is arranged at the tail end of the coke guide grid. The device for reducing coke spilling of the coke barrier car can remarkably reduce coke spilling on the ground after coke pushing of the coke barrier car is finished, support is provided for clean production of a coke oven, the labor intensity of personnel is reduced, and the risk of the personnel in the sweeping process of a track of a coke quenching car is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal chemical industry, specifically to a device for reducing coke spilling of coke blocking car. BACKGROUND

[0002] The automation technology of the current coke oven locomotive has made great progress, and Maanshan Iron & Steel Coke Company takes reducing coke spilling of coke oven as the work target to further improve the working environment of the coke oven area and continuously and steadily promotes it. In the 7m coke oven locomotive system, unmanned operation is basically realized, and man is on duty. Compared with the progress of the coke oven locomotive automation, the problems of coke spilling and the like related to the coke oven locomotive, especially the coke spilling of the coke side coke quenching car track, are particularly prominent, and personnel are needed to clean up regularly, which affects the normal production of the coke oven; the personnel cleaning up the coke spilling of the coke quenching car track also brings safety risks, and continuous innovation is needed to solve the problem of coke spilling in the production process of the coke oven locomotive.

[0003] In the current process of the coke blocking car receiving red coke, the coke guide grid is extended, the head of the coke guide grid is connected with the carbonization chamber, and the coke guide grid locking mechanism locks the coke guide grid. When the coke pushing car pushes the coke, the maximum stroke of the coke pushing rod extended has a safety distance of about 200mm from the end of the coke guide grid. A small amount of coke is accumulated at the end of the coke guide grid, and when the coke guide grid retreats or the coke blocking car runs, the coke accumulated at the end will be spilled onto the coke quenching car track, and after a period of accumulation, a considerable amount of coke spilling layer is formed, which affects the environment protection and the yield of the coke, and personnel need to be arranged regularly to clean up, increasing the safety risks of the personnel.

[0004] To solve the above problems, Maanshan Iron & Steel Coke Company develops a device for reducing coke spilling of coke guide grid of coke blocking car through its own efforts, which significantly reduces the amount of coke spilling of the coke guide grid of the coke blocking car in the production process and reduces the safety risks of the cleaning personnel. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a device for reducing coke spilling of coke blocking car to solve the problems in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a device for reducing coke spilling of coke blocking car, which comprises a coke guide grid, a gas source, a gas guide device for conveying gas to the end position of the bottom of the coke guide grid, and a downward inclination at the end of the coke guide grid.

[0007] Preferably, the air source includes a vehicle-mounted air compressor, which is fixedly installed on the coke quenching car and connected to a power source. The air supply end of the vehicle-mounted air compressor is connected to a rigid air duct, the end of the rigid air duct is connected to a control valve, the other end of the control valve is connected to a flexible air duct, and the flexible air duct is connected to an air duct connector at the bottom end of the coke guide grid. The bottom end of the coke guide grid is provided with an inclination angle.

[0008] Preferably, the air guiding device includes a rigid air duct and a flexible air duct. One end of the rigid air duct is connected to the air delivery end of the vehicle-mounted air compressor, and the other end is connected to a control valve. One end of the flexible air duct is connected to the control valve, and the other end is connected to the air duct connector at the bottom end of the coke guide grid.

[0009] Preferably, it also includes a guide wheel base, which is fixedly installed on the coke quenching car. A rotating guide wheel is installed on the guide wheel base, and the guide wheel is used to guide the flexible air duct.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention relates to a device for reducing coke spillage from the coke quenching car. It can significantly reduce the amount of coke spilled on the ground after the coke quenching car finishes pushing the coke, thus supporting clean production in the coke oven, reducing the labor intensity of personnel, and reducing the risks to personnel during the cleaning of the coke quenching car track. Attached Figure Description

[0012] Figure 1 A schematic diagram of the coke-sprinkling device for reducing coke exposure on the coke-blocking vehicle;

[0013] Figure 2 Diagram of control signal transmission;

[0014] Figure 3 This is a logic diagram for coke pot position detection and coke pushing control.

[0015] In the diagram: 1. Vehicle-mounted air compressor; 2. Rigid air duct; 3. Control valve; 4. Flexible air duct; 5. Guide wheel; 6. Guide wheel base; 7. Air duct connector; 8. Coke guide grid; 9. Tilt angle. Detailed Implementation

[0016] 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.

[0017] like Figure 1As shown in the diagram, this is a schematic of the device for preventing coke spillage from the guide grids of coke quenching cars No. 9 and No. 10 in the North District of Maanshan Iron & Steel Coal and Coking Company. The rigid air duct 2 connected to the air compressor is connected to the vehicle-mounted air compressor 1. One end of the rigid air duct 2 is connected to the control valve 3. The other end of the control valve 3 is connected to the flexible air duct 4. The other end of the flexible air duct 4 is connected to the connector 7 at the lower end of the guide grid 8. The compressed air hose guide wheel 5 is installed on the compressed air hose guide wheel base 6. The flexible air duct 4 is guided by the compressed air hose guide wheel 5 during movement. An inclination angle 9 is added to the bottom of the end of the guide grid 8.

[0018] refer to Figure 2 and 3 The overall action flow is as follows:

[0019] 1. In the coke pushing stage of the coke oven production process, the coke guide grid 8 of the coke quenching car extends and is locked; the coke quenching car rotates to prepare for receiving coke.

[0020] 2. The coke quenching car guide grid 8 moves forward, driving the flexible air duct 4 to move in the same direction. When the front end of the guide grid 8 contacts the carbonization chamber and locks in place, the coke quenching car is in position and the coke pot has already rotated. The coke pusher of the coke pusher car begins to push the coke.

[0021] 3. After the coke pusher car finishes pushing the coke, the coke pusher rod retracts to a position of about 23m, the locking pin of the coke guide grid 8 retracts, and the locking pin retracts into place. The coke guide grid 8 then begins to retract, and the soft air duct 4 follows the coke guide grid 8 and retracts through the guide wheel 5.

[0022] 4. When the coke guide grid 8 of the coke quenching car retracts to a stroke of less than 2000mm, the control system output operating control valve 3 is opened and held for 10 seconds. Compressed air enters the end of the coke guide grid 8 through the flexible air duct 4, blowing the remaining coke on the coke guide grid 8 into the coke container below. With no residual coke at the end of the coke guide grid 8, the vibrations generated during the operation of the coke guide grid 8 and the movement of the coke quenching car will prevent coke from falling, ensuring the cleanliness of the coke quenching car track.

[0023] 5. To facilitate the removal of residual coke from the end of the coke guide grid 8, a downward slope is incorporated at the end of the grid without compromising the safe distance between the grid and the top of the coke pot. Under the purging action of compressed air, the residual coke is more easily removed. This ensures clean production in the coke oven and reduces the workload of employees.

[0024] refer to Figure 2 The transmission process of the control signal is as follows:

[0025] (1) The coke guide grid 8 of the coke quenching car transmits the stroke of the coke guide grid 8 to the I / O remote station of the coke quenching car PLC system through the oil cylinder position sensor, and the remote station then sends the signal to the coke quenching car PLC system.

[0026] (2) The locking pin of the coke quenching car transmits the stroke of the guide grid 8 to the I / O remote station of the coke quenching car PLC system through the oil cylinder position sensor, and the remote station then sends the signal to the coke quenching car PLC system.

[0027] (3) The PLC system receives the stroke signals of the guide grid 8 and the guide grid locking pin, processes the logic, and when the guide grid locking pin retracts to the position, the guide grid 8 retracts and the stroke is not greater than 2000mm, the control valve 3 for blowing the bottom of the guide grid 8 is opened and the opening time lasts for 10 seconds, ensuring that the small amount of coke remaining at the end of the guide grid 8 falls into the coke pot and is prevented from spilling onto the ground, thus providing support for clean production of the coke oven.

[0028] refer to Figure 3 The coke pot position detection and coke pushing control logic program is as follows:

[0029] The detection path for the coke pushing permission signal of the coke pushing car is divided into a signal sent by the coke quenching car and a signal detected by the coke blocking car. After comparing the two signals, the PLC coordinates to send the coke pushing permission signal to the coke pushing car.

[0030] (1) Determine whether the locking pin of the coke guide grid of the coke blocking car is in the retracted position. If it is in the retracted position, then determine the state of the coke guide grid 8.

[0031] (2) If the focus guide grid 8 is in the retracted state, then the stroke of the focus guide grid 8 is further determined. When the stroke of the focus guide grid 8 is less than 2000mm.

[0032] (3) Based on the above logic judgment, the coke quenching car opens the compressed air valve through remote I / O control to release the compressed air in the compressed air storage tank for 10 seconds. The compressed air sweeps the residual coke at the end of the coke guide grid 8 into the coke can, preventing the residual coke in the coke guide grid 8 from falling onto the coke quenching car track, and ensuring the cleanliness of the coke oven area.

[0033] 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 reducing coke spillage by a coke-blocking vehicle, comprising a coke guide grid (8), characterized in that: It also includes a gas source, which delivers gas to the bottom end of the coke guide grid (8) through a gas guiding device, and the airflow direction is towards the end of the coke guide grid (8) to blow out the coke accumulated at the end of the coke guide grid (8). The gas guiding device is equipped with a control valve (3). The coke guide grid (8) measures the stroke signal of the coke guide grid (8) through a stroke sensor. The stroke signal is transmitted to the control unit of the control valve (3). The end of the coke guide grid (8) is provided with a downward tilt angle (9).

2. The device for reducing coke spillage by the coke-blocking vehicle according to claim 1, characterized in that: The air source includes a vehicle-mounted air compressor (1), which is fixedly installed on the coke quenching car and connected to a power source. The air supply end of the vehicle-mounted air compressor (1) is connected to a rigid air duct (2), the end of the rigid air duct (2) is connected to a control valve (3), and the other end of the control valve (3) is connected to a flexible air duct (4). The flexible air duct (4) is connected to the air duct connector (7) at the bottom end of the coke guide grid (8), and the bottom end of the coke guide grid (8) is provided with an inclination angle (9).

3. The device for reducing coke spillage by the coke-blocking vehicle according to claim 2, characterized in that: The air guiding device includes a rigid air duct (2) and a flexible air duct (4). One end of the rigid air duct (2) is connected to the air supply end of the vehicle-mounted air compressor (1), and the other end is connected to the control valve (3). One end of the flexible air duct (4) is connected to the control valve (3), and the other end is connected to the air duct connector (7) at the bottom end of the coke grid (8).

4. The device for reducing coke spillage by the coke-blocking vehicle according to claim 3, characterized in that: It also includes a guide wheel base (6), which is fixedly installed on the coke quenching car. A rotating guide wheel (5) is installed on the guide wheel base (6), which is used to guide the flexible air duct (4).

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