Automatic deviation rectifying device for rotation of coke tank

Abstract

The utility model belongs to the technical field of coke tank control, and particularly relates to an automatic deviation correcting device for coke tank rotation, which is characterized in that a position sensor is fixed on a coke tank carrier loader rotating table, an inductor is fixed on a coke tank and used for measuring the rotation stopping position of the coke tank, and the position sensor is connected with a PLC (programmable logic controller) module through a line; an Ethernet port of the PLC module is connected with a port of the switch through a direct connection line, the switch is connected with the circuit breaker through a line, the circuit breaker is connected with the rotary driving frequency converter through a line, the rotary driving frequency converter is connected with the rotary motor, the rotary motor is fixed to the rotary table, the position sensor is in a long arc shape, and the radian of the position sensor is the same as that of a coke tank. The outside of the position sensor is sealed by a non-magnetic protective shell. The device is simple in structure, low in cost, capable of achieving automatic positioning and automatic correction of rotation of the coke tank, high in intelligent degree, capable of improving the working efficiency and expanding the correction range, not prone to dust pollution and accurate in recognition through a sealing treatment position sensor.

Description

Technical Field

[0001] This utility model belongs to the field of coke pot control technology, and in particular relates to an automatic correction device for coke pot rotation. Background Technology

[0002] The coke pusher pushes the coke from the carbonization chamber into the circular empty coke canister loaded on the rotating platform of the coke canister carrier. To ensure that the red-hot coke is evenly stacked in the circular coke canister, the circular coke canister is rotated by a drive device during the red-hot coke receiving process. After receiving the red-hot coke, the coke canister should accurately return to its original position (circumferential position). Then, the electric locomotive pulls the carrier to deliver it to the bottom of the dry quenching coke oven. After the carrier is positioned and locked by the APS, the lifting device can safely and accurately lift the coke canister. The electric locomotive control system controls the deceleration and stopping of the coke canister rotation motor through sensor signals, thereby controlling the stopping of the coke canister. Currently, the response time of the electromagnetic brake is more than 0.1 seconds. Furthermore, when the weight of the coke canister and coke is large, there will be a certain degree of deviation in the positioning of the coke canister after it stops. This can cause the lifting lugs on the coke canister to be out of place, resulting in major accidents such as the elevator not operating, coke leakage from the coke canister car, and overturning of the coke canister. The troubleshooting time is long, which seriously affects production.

[0003] Currently, there are two methods to address deviations after the coke can stops rotating: 1. Manual correction: the operator rotates the can one more revolution at low speed to the stop position based on the actual situation; 2. Mechanical correction: two opposing spirals on a positioning drum driven by a three-in-one motor align the two spirals in opposite directions when the drum rotates and locks, aligning the positioning pin in the center of the drum, adjusting the coke can to its initial position and locking it, thus forcibly correcting its position. While both methods can achieve automatic coke can correction, manual correction is time-consuming, with a cycle time of 2-5 minutes; mechanical correction has a limited range, with a deviation range of 0-50mm, and requires a stop limit signal, increasing the potential for failure and significantly impacting production. Furthermore, due to the rotation of the coke can, conventional sensors are prone to falling off or being damaged, and the high dust levels on-site can lead to inaccurate sensor readings. Utility Model Content

[0004] The purpose of this invention is to provide an automatic correction device for coke pot rotation, thereby overcoming the shortcomings in the aforementioned background technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic correction device for coke tank rotation includes a position sensor, an inductor, a PLC control unit, and a mechanism drive unit. The PLC control unit includes a PLC module and a switch. The mechanism drive unit includes a circuit breaker and a rotary drive frequency converter. The position sensor is fixed on the rotating platform of the coke tank carrier, and the inductor is fixed on the coke tank to determine the position where the coke tank stops rotating. The position sensor is connected to the PLC module via a line. The Ethernet port of the PLC module is connected to the port of the switch via a direct connection. The switch is connected to the circuit breaker via a line. The circuit breaker is connected to the rotary drive frequency converter via a line. The rotary drive frequency converter is connected to a rotary motor, and the rotary motor is fixed to the rotating platform.

[0007] Preferably, the position sensor is an elongated arc shape, with the same curvature as the coke can.

[0008] Preferably, the sensor is a magnet.

[0009] Preferably, the position sensor is sealed with a non-magnetic protective shell.

[0010] Preferably, the non-magnetic protective shell is made of stainless steel or aluminum.

[0011] Working Principle: The elongated arc-shaped position sensor is sealed with a non-magnetic protective shell, making it suitable for dusty working environments without affecting the sensor's sensing device. When the coke tank carrier's turntable stops rotating, the position sensor on the turntable and the sensor on the coke tank interact to transmit the coke tank's current position to the PLC module. The PLC module determines whether the deviation of the coke tank's position from the standard position is positive or negative. If it is positive, the control command is transmitted via the switch to the rotary drive inverter of the mechanism drive unit. The rotary drive inverter controls the rotary motor to reverse, rotating the coke tank to the standard position. If it is negative, the control command is transmitted via the switch to the rotary drive inverter of the mechanism drive unit, which controls the rotary motor to rotate forward, rotating the coke tank to the standard position.

[0012] The beneficial effects achieved by this utility model are:

[0013] (1) The device has a simple structure, low cost and strong practicality; it receives the position information of the coke can through the PLC module and judges the deviation between the position of the coke can and the standard position. Combined with the control command sent by the switch, it controls the rotary drive frequency converter to drive the motor to rotate forward and reverse so that the coke can rotate to the standard position, realizes automatic positioning and automatic correction of the coke can rotation, has a high degree of intelligence, improves work efficiency, expands the correction range, and the correction range is 0-1500mm;

[0014] (2) By directly driving the load with a motor, mechanical transmission is eliminated, energy loss and failure points are reduced. Rotation control is achieved by combining position sensors and PLC modules, and the rotation angle and speed are precisely controlled. By combining these two methods, more precise control is achieved while ensuring high efficiency.

[0015] (3) The position sensor is changed to a long arc shape so that it will not fall or be damaged when the coke tank rotates. The position sensor is sealed and is not easily contaminated by dust, so the identification is accurate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Figure 2 This is a diagram showing the connection relationship between the position sensor and the non-magnetic protective shell in an embodiment of this utility model.

[0018] Explanation of reference numerals in the attached diagram: 1. Position sensor; 2. Sensor; 3. PLC module; 4. Switch; 5. Circuit breaker; 6. Rotary drive frequency converter; 7. Non-magnetic protective housing; 8. Transport vehicle turntable; 9. Coke tank; 10. Rotary motor. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1-2 As shown, an automatic correction device for coke tank rotation includes a position sensor 1, a sensor 2, a PLC control unit, and a mechanism drive unit. The PLC control unit includes a PLC module 3 and a switch 4. The mechanism drive unit includes a circuit breaker 5 and a rotary drive frequency converter 6. The position sensor 1 is fixed on the turntable 8 of the coke tank carrier, and the sensor 2 is fixed on the coke tank 9 to determine the stopping position of the coke tank 9. The position sensor 1 is connected to the PLC module 3 via a line. The Ethernet port of the PLC module 3 is connected to the port of the switch 4 via a direct connection. The switch 4 is connected to the circuit breaker 5 via a line, and the circuit breaker 5 is connected to the rotary drive frequency converter 6 via a line. The rotary drive frequency converter 6 is connected to the rotary motor 10, which is fixed to the rotating platform 8 of the transport vehicle. The position sensor 1 is an elongated arc shape with the same curvature as the coke tank 9. The position sensor 1 is sealed with a non-magnetic protective shell 7 made of stainless steel. The circuit breaker disconnects and connects the load circuit and disconnects the fault circuit to prevent the accident from escalating and ensure safe operation. The PLC module, combined with the switch, determines the position deviation of the coke tank and sends control commands, which drive the rotary motor through the rotary drive frequency converter, reducing fault points and enhancing the safety and stability of the device. The position sensor is sealed with a stainless steel protective shell, making it unaffected by dusty environments and ensuring accurate detection information.

Claims

1. An automatic deviation rectifying device for coke pot rotation, characterized in that, The system includes a position sensor, an inductor, a PLC control unit, and a mechanism drive unit. The PLC control unit includes a PLC module and a switch. The mechanism drive unit includes a circuit breaker and a rotary drive frequency converter. The position sensor is fixed on the rotating platform of the coke tank carrier, and the inductor is fixed on the coke tank. It is used to determine the position where the coke tank stops rotating. The position sensor is connected to the PLC module via a line. The Ethernet port of the PLC module is connected to the port of the switch via a direct connection. The switch is connected to the circuit breaker via a line. The circuit breaker is connected to the rotary drive frequency converter via a line. The rotary drive frequency converter is connected to the rotary motor. The rotary motor is fixed to the rotating platform.

2. The automatic deviation correcting device for focus tank rotation according to claim 1, characterized in that, The position sensor is an elongated arc shape, with the same curvature as the coke can.

3. The automatic deviation correcting device for focus tank rotation according to claim 1, characterized in that, The sensor is a magnet.

4. The automatic deviation correcting device for coke pot rotation according to any one of claims 1 or 3, characterized in that, The position sensor is sealed with a non-magnetic protective shell.

5. The automatic deviation correcting device for focus tank rotation according to claim 4, characterized in that, The non-magnetic protective shell is made of stainless steel or aluminum.

Images