Coke placing and dust removing control system and method for coke wharf after wet quenching

Abstract

The invention relates to a coke wharf coke placement and dust removal control system and method after wet quenching. The coke wharf coke placement and dust removal control system is used for being matched with a coke wharf coke placement and dust removal system to achieve automatic control over coke wharf coke placement and dust removal. The coke wharf coke discharging and dust removing system comprises a coke quenching tower, a coke wharf, a coke wharf dust removing cover, a coke discharging machine, a belt conveyor, a coke quenching car, a coke quenching car dust removing cover and a dust remover, and the coke wharf coke discharging and dust removing control system comprises a main control system, a material detection device, a coke discharging positioning device and a coke dust detector. The device can realize the coke discharge and dust removal control in the whole process from the coke quenching car leaving the coke quenching tower to the belt coke conveying in the trench below the coke platform, and is high in automation degree, high in working efficiency, safe and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of wet quenching, and in particular to a coke discharge and dust removal control system and method for a coke station after wet quenching. Background Art

[0002] Wet quenching uses water as the quenching medium. Currently, the wet quenching process commonly used by coking plants involves loading hot coke into quenching cars using a coke pusher and a coke stopper. The cars then move the hot coke to the bottom of the quenching tower, where a water spray quenching system cools the coke. The quenching car then deposits the quenched coke onto the coke table. The coke table cools, drains, and evaporates the wet-quenched mixed coke, while also quenching any remaining red coke. Typically, the coke cools on the coke table for approximately 30 minutes. A mechanized coke discharge system is used below the coke table, evenly scraping the mixed coke off the table onto a coke conveyor in the coke table trench.

[0003] The Chinese invention patent with authorization announcement number CN102517045B discloses "an intelligent gantry coke release machine and control method", which includes a gantry coke release machine, a PLC control system, a material detection device, a coke release positioning device, and an electronic scale; the gantry coke release machine includes a variable frequency motor, an eccentric crank, a pull rod, and a reciprocating door with a flexible guide roller. The pull rod is a segmented and independent structure, and a plurality of reciprocating doors with flexible guide rollers arranged at intervals are provided on the pull rod, and a pull rod support guide roller is provided at the bottom of the pull rod; each section of the pull rod is connected to the variable frequency motor through a matching eccentric crank, and the movement of the section of the pull rod is driven by the variable frequency motor; a material detection device is provided in the coke table unit area, and a plurality of coke release positioning devices are provided next to the quenching car track. An electronic scale is installed on the belt conveyor, and a material detection device, a coke placement positioning device, an electronic scale, and a variable frequency motor are in communication with the PLC control system respectively; the material detection device is used to detect whether coke is placed on the coke platform unit area, and sends a detection signal to the PLC control system; the coke placement positioning device receives the control signal of the PLC control system, and controls the quenching car to stop at the coke platform unit area closest to the quenching car and where no coke is placed; the electronic scale measures the coke on the belt conveyor in real time, and transmits the measured coke weight signal to the PLC control system; the PLC control system receives the signals from the material detection device and the electronic scale, and sends a control signal to the coke placement positioning device and the variable frequency motor of the coke placement machine to realize automatic control of the coke placement operation. The above patent only relates to the coke placement process and its control method, and does not involve the dust removal operation during coke placement. However, the coke platform will generate a large amount of dust (mainly coke powder and coal dust) during the coke placement process, and needs to be equipped with an effective dust removal system to meet environmental protection requirements.

[0004] Currently, the common method used by domestic coking plants for dust removal in the coke unloading system is to enclose the coke platform area with a dust hood. The dust hood near the quenching car is sealed with a rubber curtain. The dust hood is connected to the dust collector via a dust removal duct. When the quenching car delivers quenched coke, the quenching car driver sends a request to the coke platform operator to prepare for unloading. The coke platform operator then directs the quenching car driver to move the quenching car to the coke unloading location on the coke platform. The coke platform operator activates the dust collector, and the quenching car driver operates the quenching car to unload the coke to the designated unloading location before departing. The coke platform operator then deactivates the dust collector based on dust removal effectiveness. After approximately 30 minutes have passed since unloading, the coke platform operator visually verifies that there is no unquenched red coke. The dust collector is then activated and the corresponding area's unloading machine drive motor is manually activated. The coke on the coke platform falls onto a belt conveyor in the coke platform trench and is transported to downstream processing stations. Once unloading is complete in that area of the coke platform, the unloading machine and dust collector are deactivated. During the de-coking and dust removal process, operators are required to observe and control at all times. The degree of automation is low and the labor intensity of the operators is high. The entire de-coking and dust removal process requires multiple operators to perform control operations, and the on-site environment is harsh, which is detrimental to the health of the operators. Summary of the Invention

[0005] The present invention provides a control system and method for dust removal of coke discharge in a coke platform after wet quenching, which can realize dust removal control of the entire process from the quenching car leaving the coke quenching tower to the coke being transported by a belt in the trench under the coke platform, with a high degree of automation, high working efficiency, and safety and reliability.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A coke platform dust removal control system for coke discharge after wet quenching is used to cooperate with the coke platform dust removal system to realize automatic control of coke discharge and dust removal; the coke platform dust removal control system includes a main control system, a material detection device, a coke discharge positioning device and a coke dust detector;

[0008] The coke platform coke discharge and dust removal system includes a coke quenching tower, a coke platform, a coke platform dust collection hood, a coke discharge machine, a belt conveyor, a coke quenching car, a coke quenching car dust collection hood and a dust collector. The coke platform is arranged obliquely, and the bottom of the coke platform is connected to the belt conveyor through the coke discharge machine. The top of the coke platform is provided with a coke quenching car track, and the coke quenching car track is laid along the coke quenching tower-coke platform direction; the coke platform dust collection hood encloses the coke platform, the coke discharge machine and the belt conveyor, and the coke platform dust collection hood is connected to the dust collector through a dust collection pipe of the dust collector; the coke platform is divided into a plurality of coke platform units along the longitudinal direction, and the coke platform dust collection hood corresponding to each coke platform unit is respectively provided with a dust collection hood door at one end close to the coke quenching car track; the coke quenching car runs along the coke quenching car track, and the coke quenching car dust collection hood is provided on the top of the coke quenching car, and the coke quenching car dust collection hood is connected to the coke platform dust collection hood through the coke quenching car dust collection pipe; the coke quenching car dust collection pipe is arranged parallel to the coke quenching car track;

[0009] The top of the coke hood of each coke unit is equipped with a material detection device and a coke dust detector; a coke placement positioning device is installed next to the coke quenching car track of each coke unit; the material detection device, coke placement positioning device and coke dust detector are respectively connected to the main control system;

[0010] The main control system is also connected to the dust hood door, the dust collector, the control end of the quenching car dust hood, and the quenching car control system.

[0011] A connecting dust removal pipeline is provided between the dust removal pipeline of the quenching car and the dust removal pipeline of the dust collector, and a dust removal valve is provided on the connecting dust removal pipeline; and a control end of the dust removal valve is connected to the main control system.

[0012] The dust collector is equipped with a variable frequency controller, and the control end of the dust collector frequency converter is connected to the main control system.

[0013] The dust removal cover of the coke quenching car is driven independently and moves synchronously with the coke quenching car. The driving end of the dust removal cover of the coke quenching car is connected to the main control system.

[0014] The main control system is a PLC control system.

[0015] A method for controlling dust removal of coke discharge in a coke station after wet quenching, comprising the following steps:

[0016] 1) Divide the focal table into multiple focal table units along the longitudinal direction and number them;

[0017] 2) Using a material detection device to detect whether each coke unit has coke;

[0018] 3) The main control system sends a signal to the quenching car regarding the position of the coke unit where coke can be placed, and opens the dust removal hood door of the corresponding coke unit;

[0019] 4) The main control system controls the dust removal valve to open, connects the dust removal cover of the quenching car to the dust collector, starts the dust collector, and adjusts the air volume of the dust collector through the dust collector inverter to remove dust from the quenching car;

[0020] 5) After the quenching car moves along the quenching car track to the corresponding coke unit, the coke placement positioning device triggers the limit switch, opens the dust cover door, and places the coke into the corresponding coke unit;

[0021] 6) After the coke discharge operation is completed, the dust hood door is closed, the coke quenching car drives to the location of the coke intercepting car, and the dust hood of the coke quenching car returns to the coke quenching tower;

[0022] 7) During the coking process, the amount of smoke and dust in the dust removal hood of the corresponding coking unit is detected by the coke dust detector, and the main control system controls the start or stop of the dust collector according to the detection value.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1) It can realize the control of coke discharge and dust removal from the whole process from the quenching car leaving the coke quenching tower to the coke conveyor belt transporting coke in the trench under the coke platform, with a high degree of automation;

[0025] 2) It can realize unattended automatic operation, which is safe and reliable, avoids the damage to the health of operators caused by the harsh environment on site, and reduces labor intensity;

[0026] 3) On this basis, remote monitoring of de-coking and dust removal operations can be further realized to improve the management level of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the composition structure of a coke discharge and dust removal control system after wet quenching described in the present invention. Figure 1 .

[0028] Figure 2 This is a schematic diagram of the composition structure of a coke discharge and dust removal control system after wet quenching described in the present invention. Figure 2 .

[0029] Figure 3 This is a principle block diagram of a coke discharge and dust removal control system for a coke station after wet quenching as described in the present invention.

[0030] Figure: 1. Main control system 2. Material detection device 3. Coke placement positioning device 4. Dust hood door 5. Coke quenching car 6. Coke quenching car dust hood 7. Dust collector inverter 8. Dust collector 9. Dust removal valve 10. Coke dust detector 11. Coke placement machine 12. Coke platform 13. Coke platform dust hood 14. Coke quenching car dust removal duct 15. Coke quenching tower 16. Belt conveyor DETAILED DESCRIPTION

[0031] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0032] like Figure 1 、 Figure 2 As shown, the present invention provides a coke discharge and dust removal control system for a coke station after wet quenching, which is used to cooperate with the coke discharge and dust removal system to realize automatic control of the coke discharge and dust removal; the coke discharge and dust removal control system includes a main control system 1, a material detection device 2, a coke discharge positioning device 3 and a coke dust detector 10;

[0033] The coke platform coke discharge and dust removal system includes a coke quenching tower 15, a coke platform 12, a coke platform dust removal cover 13, a coke discharge machine 11, a belt conveyor 16, a coke quenching car 5, a coke quenching car dust removal cover 6 and a dust collector 8. The coke platform 12 is arranged at an angle. The bottom of the coke platform 12 is connected to the belt conveyor 16 through the coke discharge machine 11. The top of the coke platform 12 is provided with a coke quenching car track. The coke quenching car track is laid along the direction from the coke quenching tower 1 to the coke platform 12. The coke platform dust removal cover 6 seals the coke platform 12, the coke discharge machine 11 and the belt conveyor 16. The coke platform dust hood 13 is enclosed inside and connected to the dust collector 8 via a dust collector dust removal duct. The coke platform 12 is divided into a plurality of coke platform units along the longitudinal direction. The coke platform dust hood 13 corresponding to each coke platform unit is provided with a dust hood compartment door 4 at one end close to the quenching car track. The quenching car 5 runs along the quenching car track. The quenching car dust hood 6 is provided on the top of the quenching car 5. The quenching car dust hood 6 is connected to the coke platform dust hood 13 via a quenching car dust removal duct 14. The quenching car dust removal duct 14 is arranged parallel to the quenching car track.

[0034] The top of the coke unit dust removal cover 13 is provided with a material detection device 2 and a coke dust detector 10; a coke placement positioning device 3 is provided next to the coke quenching car track of each coke unit; Figure 3 As shown, the material detection device 2, the coke placement positioning device 3 and the coke dust detector 10 are respectively connected to the main control system 1;

[0035] The main control system 1 is further connected to the control ends of the dust hood door 4 and the dust collector 8, as well as the control systems of the quenching car and the quenching tower quenching spray system.

[0036] A connecting dust removal pipeline is provided between the quenching car dust removal pipeline 14 and the dust collector dust removal pipeline, and a dust removal valve 9 is provided on the connecting dust removal pipeline; a control end of the dust removal valve 9 is connected to the main control system 1.

[0037] The quenching car dust removal cover 6 is driven independently and moves synchronously with the quenching car 5 . The driving end of the quenching car dust removal cover 6 is connected to the main control system 1 .

[0038] The dust collector 8 is equipped with a dust collector frequency converter 7 , and the control end of the dust collector frequency converter 7 is connected to the main control system 1 .

[0039] The main control system 1 is a PLC control system.

[0040] The present invention provides a method for controlling dust removal in a coke station after wet quenching, comprising the following steps:

[0041] 1) Divide the focal table 12 into a plurality of focal table units along the longitudinal direction and number them;

[0042] 2) Detecting whether there is coke in each coke station unit by using the material detection device 2;

[0043] 3) The main control system 1 sends a position signal of the coke unit that can be used to place coke to the quenching car 5, and opens the dust removal hood door 4 of the corresponding coke unit;

[0044] 4) The main control system 1 controls the dust removal valve 9 to open, connects the quenching car dust removal cover 6 with the dust collector 8, starts the dust collector 8, and adjusts the air volume of the dust collector 8 through the dust collector inverter 7 to remove dust from the quenching car 5;

[0045] 5) After the quenching car 5 moves along the quenching car track to the corresponding coke unit, the coke placement positioning device 3 triggers the limit switch, opens the dust cover door 4, and places the coke into the corresponding coke unit;

[0046] 6) After the coke discharge operation is completed, the dust hood door 4 is closed, the quenching car 5 moves to the location of the coke intercepting car, and the quenching car dust hood 6 returns to the coke quenching tower;

[0047] 7) During the coking process, the amount of smoke and dust in the coke table dust removal cover 13 of the corresponding coke table unit is detected by the coke dust detector 10, and the main control system 1 controls the dust collector 8 to start or stop according to the detected value.

[0048] In the coke discharge and dust removal control system for the coke station after wet quenching described in the present invention, the functions of the various components are as follows:

[0049] Material detection device 2, used to detect whether coke is placed in the corresponding coke table unit;

[0050] The coke placement positioning device 3 is used to control the coke quenching car 5 to stop at an empty coke station unit (to be placed);

[0051] The coking platform dust removal cover 13 is used to enclose the entire coking platform area to achieve centralized dust removal;

[0052] The dust hood door 4 is arranged at the upper end of the coke platform dust hood 13 and is arranged one by one corresponding to each coke platform unit. The dust hood door 4 opens when the quenching car 5 unloads coke from the corresponding coke platform unit; the opening and closing of the dust hood door 4 is controlled by the limit switch triggered by the coke release positioning device 3.

[0053] The quenching car 5 is used to transport the coke quenched in the quenching tower 15 to the coke platform 12;

[0054] The quenching car dust removal cover 6 is provided on the top of the quenching car 5 and moves in step with the quenching car 5. The quenching car dust removal cover 6 is movably and sealedly connected to the quenching car dust removal pipe 14 through a pipe, and is used for dust removal during the movement of the quenching car 5;

[0055] The dust collector 8 is a ground-based dust removal device, and the dust suction wind force can be adjusted by the dust collector inverter 7. The dust collector dust collection pipe is connected to the quenching car dust collection pipe 14 and the coke platform dust collection cover 13 at the same time. The dust collection valve 9 on the dust collection pipe is switched to achieve dust removal during the movement of the quenching car 5 and the coke discharge process.

[0056] The coke dust detector 10 is used to monitor the dust concentration in the coke table dust removal cover 13 in real time, and a conventional dust detector can be used;

[0057] The coke unloading machine 11 is used to unload the dried coke on the coke table 12 onto the belt conveyor 16 in the trench;

[0058] The main control system 1 is connected to the detection end or the control end of each functional part and is used to realize the automatic control of the de-coking and dust removal process.

[0059] The present invention discloses a coke discharge and dust removal control system for a coke platform after wet quenching, wherein a material detection device 2 and a coke dust detector 10 are respectively provided on each coke platform unit, and a plurality of coke discharge positioning devices 3 are provided corresponding to each coke platform unit next to the quenching car track, and a coke platform dust removal hood door 4 is located at one end of the coke platform dust removal hood 13 close to the quenching car track; the quenching car dust removal pipeline 14 is located between the quenching tower 15 and the coke platform 12 and is connected to the coke platform dust removal hood 13, and the dust collector 8 is connected to the quenching car dust removal pipeline 14 and the coke platform dust removal hood 13 through a dust removal valve 9; the quenching car dust removal hood 6 is located on the quenching car 5 and is movably and sealedly connected to the quenching car dust removal pipeline 14 through a pipeline to realize mobile dust removal; the dust collector 8 can adjust the dust removal air volume through the dust collector frequency converter 7; the cooled coke on the coke platform 12 is unloaded onto the belt conveyor 16 through the coke discharge machine 11 for transportation out. The material detection device 2, the coke placement positioning device 3, the dust removal hood door 4, the coke quenching vehicle control system, the dust removal valve 9, the coke dust detector 10, and the coke quenching tower coke quenching spray control system are respectively connected to the main control system.

[0060] The material detection device 2 is used to detect whether there is coke placed in the corresponding coke unit, and send the detection signal to the main control system 1; the coke dust detector 10 detects in real time whether the coke unit area meets the dust collector 8 opening standard (the limit range is set in advance in the main control system), and sends the detection result to the main control system 1; the coke placement positioning device 3 receives the control signal of the main control system, controls the quenching car 5 to stop at the set (idle coke units are set in sequence) coke unit, and controls the dust hood door 4 of the corresponding coke unit to open.

[0061] In order to more intuitively embody the present invention, the embodiments of the present invention are further described in conjunction with examples. The following examples are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technical solution that can be obviously obtained by a person skilled in the art within the technical scope disclosed in the present invention, including simple changes or equivalent replacements, is within the scope of protection of the present invention.

[0062] [Example]

[0063] In this embodiment, the dust removal air volume of the dust collector 8 is adjusted in stages by the dust collector inverter 7. Specifically, when the quenching car 5 is moving (the quenching car dust removal duct 14 is connected to the dust collector dust removal duct), the dust collector operates at gear 1 to remove dust during the movement of the quenching car 5. When the dust removal duct of the dust collector is connected to the coke table dust removal cover 13 via the dust removal valve 9, the dust collector 8 operates at gear 2. When the quenching car 5 is releasing coke into the coke table unit, the dust collector 8 operates at gear 3. During delayed coke release, the dust collector 8 operates at gear 4. The wind speed gradually increases from gear 1 to gear 4.

[0064] This embodiment can realize the automatic control of the traveling dust removal between the quenching car 5 and the coke platform 12, the automatic opening and closing of the dust hood door 4, and the delayed coke discharge dust removal. The specific process is as follows:

[0065] 1) Divide the focal table 12 into a plurality of focal table units according to its length, and number each focal table unit;

[0066] 2) The material detection device 2 detects whether coke is placed in the corresponding coke table unit and sends a detection signal to the main control system 1;

[0067] 3) The main control system 1 sends the position signal of the coke table unit that can be used to place coke to the coke quenching car 5;

[0068] 4) The control system of the quenching spray system of the quenching tower 15 sends a stop spraying signal to the main control system 1, and the main control system 1 controls the dust removal valve 9 to open;

[0069] 5) The dust removal valve 9 feeds back the open signal to the main control system 1, and the main control system 1 sends a signal to the dust collector inverter 7, which controls the dust collector 8 to open and run at gear 1;

[0070] 6) When the quenching car 5 leaves the coke quenching tower 15, the corresponding limit switch is triggered, and a signal is sent to the main control system 1 through the quenching car control system. The main control system 1 starts the drive device of the quenching car dust removal cover 6, and the quenching car 6 moves synchronously with the quenching car 6 on the track above the quenching car 6 to the coke placement position on the coke platform;

[0071] 7) When the quenching car 5 reaches the coke platform dust removal cover, the corresponding limit switch is triggered. The limit switch sends a signal to the main control system 1, which controls the dust removal valve 9 to close, cutting off the dust removal pipeline connecting the quenching car dust removal pipeline 14 and the dust collector dust removal pipeline. At the same time, the dust collector inverter controls the dust collector 8 to operate at gear 2.

[0072] 8) The quenching car 5 reaches a coke table unit where coke can be placed and triggers the corresponding limit switch. The quenching car 5 stops and sends a stop signal to the main control system 1. The main control system 1 controls the corresponding dust hood door 4 to open.

[0073] 9) After the dust hood door 4 is opened, a signal indicating that the dust hood door is in position is fed back to the main control system 1, which controls the quenching car 5 to release the coke to the corresponding coke unit. At the same time, the dust collector inverter 7 controls the dust collector 8 to operate at gear 3.

[0074] 10) After the quenching car 5 has finished discharging the coke, it feeds back a signal to the main control system 1, which controls the dust hood door 4 to close and drives the quenching car 5 to the location of the coke intercepting car to receive the coke to be quenched. The quenching car dust hood 6 returns to the parking area next to the quenching tower 15.

[0075] 11) The dust cover door 4 sends a closed signal to the main control system 1; the main control system 1 counts the automatic delayed defocusing of each defocusing unit, and controls the dust collector 8 to operate at gear 4 within the set time based on the most recent defocusing time;

[0076] 12) The material detection device 2 detects the presence of coke in the coke station unit and sends a detection signal to the main control system 1. When the following two conditions are simultaneously met, namely, the material detection device detects that the coke in the coke station unit has been emptied, and the coke dust content value detected by the coke dust detector meets the set requirements, the main control system 1 controls the dust collector 8 to stop working;

[0077] In this embodiment, the main control system adopts a PLC control system, and the main control system is connected to a remote control room to realize remote monitoring of the coke release and dust removal operation, and the coke release and dust removal operation of the coke platform is realized unmanned.

[0078] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A coke platform dust removal control system after wet quenching, used to cooperate with the coke platform dust removal system to realize automatic control of coke platform dust removal; characterized by: The coke platform de-coking and dust removal control system includes a main control system, a material detection device, a de-coking positioning device and a coke dust detector; The coke platform coke discharge and dust removal system includes a coke quenching tower, a coke platform, a coke platform dust collection hood, a coke discharge machine, a belt conveyor, a coke quenching car, a coke quenching car dust collection hood and a dust collector. The coke platform is arranged obliquely, and the bottom of the coke platform is connected to the belt conveyor through the coke discharge machine. The top of the coke platform is provided with a coke quenching car track, and the coke quenching car track is laid along the coke quenching tower-coke platform direction; the coke platform dust collection hood encloses the coke platform, the coke discharge machine and the belt conveyor, and the coke platform dust collection hood is connected to the dust collector through a dust collection pipe of the dust collector; the coke platform is divided into a plurality of coke platform units along the longitudinal direction, and the coke platform dust collection hood corresponding to each coke platform unit is respectively provided with a dust collection hood door at one end close to the coke quenching car track; the coke quenching car runs along the coke quenching car track, and the coke quenching car dust collection hood is provided on the top of the coke quenching car, and the coke quenching car dust collection hood is connected to the coke platform dust collection hood through the coke quenching car dust collection pipe; the coke quenching car dust collection pipe is arranged parallel to the coke quenching car track; The top of the coke hood of each coke unit is equipped with a material detection device and a coke dust detector; a coke placement positioning device is installed next to the coke quenching car track of each coke unit; the material detection device, coke placement positioning device and coke dust detector are respectively connected to the main control system; The main control system is also connected to the dust hood door, the dust collector, the control end of the quenching car dust hood, and the quenching car control system.

2. A coke discharge and dust removal control system for a coke station after wet quenching according to claim 1, characterized in that: A connecting dust removal pipeline is provided between the dust removal pipeline of the quenching car and the dust removal pipeline of the dust collector, and a dust removal valve is provided on the connecting dust removal pipeline; and a control end of the dust removal valve is connected to the main control system.

3. The coke discharge and dust removal control system for the coke stage after wet quenching according to claim 1 is characterized in that: The dust collector is equipped with a variable frequency controller, and the control end of the dust collector frequency converter is connected to the main control system.

4. The coke discharge and dust removal control system for the coke stage after wet quenching according to claim 1 is characterized in that: The dust removal cover of the coke quenching car is driven independently and moves synchronously with the coke quenching car. The driving end of the dust removal cover of the coke quenching car is connected to the main control system.

5. The coke discharge and dust removal control system for the coke stage after wet quenching according to claim 1 is characterized in that: The main control system is a PLC control system.

6. A method for controlling dust removal of coke discharge in a coke station after wet quenching, based on the control system for dust removal of coke discharge in a coke station after wet quenching according to any one of claims 1 to 5, characterized in that: The steps include: 1) Divide the focal table into multiple focal table units along the longitudinal direction and number them; 2) Using a material detection device to detect whether each coke unit has coke; 3) The main control system sends a signal to the quenching car regarding the position of the coke unit where coke can be placed, and opens the dust removal hood door of the corresponding coke unit; 4) The main control system controls the dust removal valve to open, connects the dust removal cover of the quenching car to the dust collector, starts the dust collector, and adjusts the air volume of the dust collector through the dust collector inverter to remove dust from the quenching car; 5) After the quenching car moves along the quenching car track to the corresponding coke unit, the coke placement positioning device triggers the limit switch, opens the dust cover door, and places the coke into the corresponding coke unit; 6) After the coke discharge operation is completed, the dust hood door is closed, the coke quenching car drives to the location of the coke intercepting car, and the dust hood of the coke quenching car returns to the coke quenching tower; 7) During the coking process, the amount of smoke and dust in the dust removal hood of the corresponding coking unit is detected by the coke dust detector, and the main control system controls the start or stop of the dust collector according to the detection value.

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