Coke wharf coke baffle feed opening sealing device and working method thereof

Abstract

The invention relates to a sealing device for a feed opening of a coke wharf coke baffle and a working method thereof, and the sealing device for the feed opening of the coke wharf coke baffle comprises a steel wire rope winding and unwinding mechanism, a sealing adhesive tape winding and unwinding mechanism and a sealing carrier roller mechanism, and further comprises a sealing control system. A steel wire rope winding drum is matched with a sealing tape winding drum, automatic laying of a sealing tape at the bottom of a coke baffle discharging opening is achieved, tight attachment of the sealing tape and the coke baffle discharging opening is achieved through a sealing carrier roller, and automatic control over the sealing process is achieved through a control system. Finally, effective sealing of the feed opening of the coke wharf coke baffle is achieved, and normal operation of a wet quenching system is not affected.

Description

Technical Field

[0001] This invention relates to the field of coke quenching technology, and in particular to a sealing device for the feed inlet of a coke table baffle plate and its working method. Background Technology

[0002] Currently, there are two main methods for quenching coke after coking: wet quenching and dry quenching. Wet quenching involves spraying large amounts of water onto the freshly produced red-hot coke to quench it. Dry quenching uses inert gas as a circulating gas, which exchanges heat with the hot coke in the dry quenching furnace to achieve quenching. Although dry quenching has higher investment and operating costs, it is more energy-efficient and environmentally friendly than wet quenching, and has therefore gradually replaced it. At present, most coking plants in my country primarily use dry quenching, with wet quenching as a backup. Furthermore, coking plants that previously used wet quenching have mostly continued to use wet quenching as a backup when upgrading to dry quenching.

[0003] Coke quenched in wet conditions has a high moisture content and low dust content. After quenching in the quenching tower, the coke needs to be sent to the coke platform for cooling and moisture evaporation. Coke quenched in dry conditions, however, has a low moisture content and high dust content, and can be transported directly. In normal production, dry and wet quenching systems share a single coke transport system, but dry-quenched coke requires a fully sealed dust-free transport process. For wet quenching systems, a belt conveyor is typically installed below the coke platform. After drying on the platform, the coke falls onto a baffle plate and, under the reciprocating motion of the scraper feeder, falls through openings in the baffle plate onto the belt conveyor. When the dry quenching system uses the same belt conveyor, dust from the coke overflows through the openings in the baffle plate, causing environmental pollution. If the baffle plate discharge port is sealed during dry quenching coke transport, the following problems arise: 1) The top of the coke discharge port of the coke baffle plate is covered with coke that has fallen from the coke platform and is blocked by the scrapers of the scraper coke discharge machine, making it impossible to lay a continuous sealing plate. If a sealing plate is laid separately at each discharge port, the coke around the coke discharge port of the coke baffle plate must be cleaned first, which is not only labor-intensive but also creates a harsh operating environment and poses safety hazards. 2) Below the feed inlet of the slag baffle is the belt of the belt conveyor, and on both sides of the belt conveyor are long guide barriers, making it impossible for personnel to enter and lay the sealing plate. Summary of the Invention

[0004] This invention provides a sealing device and its working method for the coke tray discharge port of a coke platform. It employs a steel wire rope drum and a sealing tape drum to automatically lay the sealing tape at the bottom of the discharge port. A sealing roller ensures a tight fit between the sealing tape and the discharge port. A control system automatically controls the sealing process. Ultimately, this achieves effective sealing of the coke tray discharge port without affecting the normal operation of the wet quenching system.

[0005] To achieve the above objectives, the present invention employs the following technical solution: A sealing device for the feed inlet of a coke tray baffle plate includes a wire rope winding and unwinding mechanism, a sealing tape winding and unwinding mechanism, and a sealing roller mechanism. The wire rope winding and unwinding mechanism consists of a wire rope drum, a drum motor, and a wire rope. The sealing tape winding and unwinding mechanism consists of a sealing tape drum, a drum motor, and a sealing tape. The wire rope drum is located at one end of the coke tray and is driven by the drum motor. The sealing tape drum is located at the other end of the coke tray and is driven by the drum motor. One end of the wire rope is connected to the wire rope drum, and the other end is connected to one end of the sealing tape. The other end of the sealing tape is connected to the sealing tape drum. The straight sections of the wire rope and sealing tape are located in the narrow space between the coke baffle and the belt conveyor below the coke platform. The sealing roller mechanism consists of two electro-hydraulic lifting rollers, multiple sealing rollers, and a roller linkage mechanism. One electro-hydraulic lifting roller is provided at each end of the coke platform to press the two ends of the sealing tape onto the coke baffle. Multiple sealing rollers are spaced apart along the longitudinal direction of the coke platform. Each sealing roller is connected to the crankshaft of the scraper coke discharge machine through the roller linkage mechanism. After the crankshaft of the scraper coke discharge machine rotates at an angle, it can make each sealing roller lift synchronously and press the sealing tape onto the coke baffle.

[0006] A small coke station end chamber 1 is provided at one end of the coke station, and a small coke station end chamber 2 is provided at the other end; the wire rope drum and drum motor 1 are provided in the small coke station end chamber 1, and the sealing tape drum and drum motor 2 are provided in the small coke station end chamber 2.

[0007] The steel wire rope and the sealing tape are connected by a tape end connector.

[0008] The number of steel wire ropes is at least 2, and each steel wire rope drum is equipped with a drum corresponding to a steel wire rope.

[0009] The idler roller linkage mechanism consists of a magnetically attached fixed shaft, a swing arm, and an idler roller linkage. The magnetically attached fixed shaft is fixed to the crankshaft of the scraper coke discharger by magnetic attraction and can rotate around its axis with the crankshaft of the scraper coke discharger. One end of the swing arm is connected to the magnetically attached fixed shaft, and the other end is connected to the idler roller linkage. Multiple sealed idler rollers are evenly spaced on the idler roller linkage.

[0010] A sealing device for the coke tray feed inlet of a coke platform includes a sealing control system. The sealing control system comprises a PLC controller, limit switch one, limit switch two, and limit switch three. Limit switch one is located on one side of the wire rope drum, limit switch two is located on one side of the sealing tape drum, and both limit switches one and two are used to detect the position of the sealing tape. Limit switch three is located on one side of the idler roller connecting rod and is used to detect the position of the idler roller connecting rod. The signal output terminals of limit switches one, two, and three are respectively connected to the signal input terminals of the PLC controller. The signal input terminals of the PLC controller are also connected to a coke discharge control system, which includes a dry quenching coke discharge control system and a wet quenching coke discharge control system. The signal output terminals of the PLC controller are connected to the control terminals of drum motor one, drum motor two, electro-hydraulic lifting idler roller, and magnetically attached fixed shaft.

[0011] A method for operating a sealing device for the feed inlet of a coke tray baffle includes the following steps: I. During coke discharge in a dry quenching system: 1) The dry quenching and coke discharge control system transmits the coke discharge signal to the PLC controller of the sealing control system. 2) The PLC controller outputs command signals to start the first drum motor, which retracts the wire rope through the wire rope drum; at the same time, it controls the second drum motor to start, which releases the sealing tape through the sealing tape drum. 3) After release, the sealing tape extends longitudinally along the coke platform from one end of the sealing tape drum to the other end of the wire rope drum. When limit switch one detects that the sealing tape has been released into place, it sends a signal to the PLC controller. The PLC controller controls drum motor one and drum motor two to stop rotating synchronously. 4) The PLC controller controls the electro-hydraulic lifting roller to start, and the lifting roller extends upward to press the two ends of the sealing tape tightly against the coke baffle plate; 5) The PLC controller controls the magnetic fixed shaft to be energized, so that the magnetic fixed shaft is connected to the crankshaft of the scraper coke discharge machine; 6) The PLC controller controls the start of the scraper coke discharge machine. When the crankshaft of the scraper coke discharge machine rotates, the idler roller connecting rod is raised accordingly. When the limit switch three detects the idler roller connecting rod, it sends a signal to the PLC controller to interlock and control the scraper coke discharge machine to stop. At this time, multiple sealing idlers on the idler roller connecting rod press the sealing tape onto the coke baffle plate and close the feed port on the coke baffle plate. 7) The PLC controller sends the sealing ready signal to the dry quenching and coke discharge control system. The dry quenching and coke discharge control system starts the belt conveyor to transport coke and simultaneously starts the dust removal system to perform dust removal operation. II. When the dry quenching system stops discharging coke or switches to the wet quenching system for coke discharging: 1) The dry quenching and coke discharge control system will transmit the stop coke discharge signal to the PLC controller of the sealing control system; 2) The PLC controller controls the crankshaft of the scraper coke discharge machine to rotate in the reverse direction and return to the initial working position. The idler roller connecting rod is lowered accordingly, the sealing tape is separated from the coke baffle, and the feed port on the coke baffle is exposed. 3) The PLC controller de-energizes the magnetic fixed shaft, causing it to disengage from the crankshaft of the scraper coke discharger; 4) The PLC controller controls the electro-hydraulic lifting roller to start again, the lifting roller retracts downward, and the two ends of the sealing tape separate from the coke baffle plate; 5) The PLC controller restarts the first drum motor to release the wire rope through the wire rope drum; at the same time, it restarts the second drum motor to recover the sealing tape through the sealing tape drum. 6) When limit switch 2 detects that the sealing tape has been retracted to the correct position, it sends a signal to the PLC controller, which then controls drum motor 1 and drum motor 2 to stop operating.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1) By using a combination of wire rope drum and sealing tape drum, the sealing tape at the bottom of the coke baffle discharge port is automatically laid, which realizes the purpose of continuously setting up sealing devices in the narrow space at the bottom of the coke baffle. It is easy to construct, safe and efficient. 2) The sealing rollers achieve a tight fit between the sealing tape and the coke discharge port. The sealing rollers are raised and lowered synchronously through the roller linkage mechanism, which is driven by the crankshaft of the scraper coke discharge machine. No additional drive mechanism is required, which reduces the investment cost. 3) The idler roller linkage mechanism is connected to the crankshaft of the scraper coke discharger by magnetic attraction. It can be easily disassembled when the wet quenching system is activated without affecting the normal operation of the wet quenching system. 4) The sealing process is fully automated through the control system, which is highly automated, easy to use, and effectively prevents coke dust from escaping and polluting the environment during coke transportation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a sealing device for the feed inlet of a coke table baffle plate according to the present invention.

[0014] Figure 1a yes Figure 1 Local view Figure 1 .

[0015] Figure 1b yes Figure 1 Local view Figure 2 .

[0016] Figure 2 yes Figure 1 Top view.

[0017] Figure 3This is a schematic diagram of the wire rope drum and drum motor described in this invention.

[0018] Figure 4 This is a schematic diagram of the sealing tape roll and the second roll motor described in this invention.

[0019] Figure 5 This is a schematic diagram of the connection between the steel wire rope and the sealing tape described in this invention.

[0020] Figure 6 This is a schematic diagram showing the position of the sealing roller described in this invention.

[0021] Figure 7 This is a schematic diagram of the control system described in this invention.

[0022] In the diagram: 1. Wire rope drum 2. Drum motor one 3. Sealing tape drum 4. Drum motor two 5. Sealing tape 6. Wire rope 7. Tape end connector 8. Electro-hydraulic lifting idler roller 9. Magnetic fixed shaft 10. Idler roller linkage mechanism 11. Sealing idler roller 12. Limit switch one 13. Control box 14. Scraper coke discharger 15. Scraper coke discharger crankshaft 16. Coke platform end chamber one 17. Coke platform end chamber two 18. Belt conveyor 19. Coke platform 20. Coke baffle plate 21. Limit switch two Detailed Implementation

[0023] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings: like Figure 1 , Figure 1a , Figure 1b , Figure 2 and Figure 6 As shown, the sealing device for the coke tray feed inlet of the present invention includes a wire rope winding mechanism, a sealing tape winding mechanism, and a sealing roller mechanism; as shown... Figure 3 As shown, the wire rope winding and unwinding mechanism consists of a wire rope drum 1, a drum motor 2, and a wire rope 6; Figure 4 As shown, the sealing tape winding mechanism consists of a sealing tape drum 3, a drum motor 4, and a sealing tape 5; the wire rope drum 1 is located at one end of the coke platform 19 and is driven by the drum motor 2; the sealing tape drum 3 is located at the other end of the coke platform 19 and is driven by the drum motor 4; one end of the wire rope 6 is connected to the wire rope drum 1, and the other end is connected to one end of the sealing tape 5, and the other end of the sealing tape 5 is connected to the sealing tape drum 3; the straight sections of the wire rope 6 and the sealing tape 5 are located in the narrow space between the coke baffle 20 and the belt conveyor 18 below the coke platform 19 (e.g., Figure 1 , Figure 6(As shown in the figure) The sealing roller mechanism consists of two electro-hydraulic lifting rollers 8, multiple sealing rollers 11, and a roller connecting rod mechanism. One electro-hydraulic lifting roller 8 is provided at each end of the coke platform 19 to press the two ends of the sealing tape 5 onto the coke baffle plate 20. Multiple sealing rollers 11 are arranged longitudinally along the coke platform 19 at intervals. Each sealing roller 11 is connected to the crankshaft 15 of the scraper coke discharge machine through the roller connecting rod mechanism. After the crankshaft 15 of the scraper coke discharge machine rotates at an angle, it can make each sealing roller 11 rise synchronously and press the sealing tape 5 onto the coke baffle plate 20.

[0024] One end of the coking platform 19 is provided with a coking platform end chamber 16, and the other end is provided with a coking platform end chamber 2 17; the wire rope drum 1 and the drum motor 2 are provided in the coking platform end chamber 16, and the sealing tape drum 3 and the drum motor 4 are provided in the coking platform end chamber 2 17.

[0025] The steel wire rope 6 and the sealing tape 5 are connected by a tape end connector 7 (e.g., ...). Figure 5 (As shown).

[0026] The number of steel wire ropes 6 is at least 2, and the steel wire rope drum 1 is provided with drums corresponding to the steel wire ropes 6 one by one.

[0027] The idler roller linkage mechanism consists of a magnetically attached fixed shaft 9, a swing arm, and an idler roller linkage. The magnetically attached fixed shaft 9 is fixed to the crankshaft 15 of the scraper coke discharger by magnetic attraction and can rotate around its axis with the crankshaft 15 of the scraper coke discharger. One end of the swing arm is connected to the magnetically attached fixed shaft 15, and the other end is connected to the idler roller linkage. Multiple sealed idler rollers 11 are evenly spaced on the idler roller linkage.

[0028] The sealing device for the coke tray feed inlet of the present invention further includes a sealing control system; as follows: Figure 7 As shown, the sealing control system consists of a PLC controller, limit switch 12, limit switch 21, and limit switch 3. Limit switch 12 is located on one side of the wire rope drum 1, and limit switch 21 is located on one side of the sealing tape drum 3. Both limit switches 12 and 21 are used to detect the position of the sealing tape 5. Limit switch 3 is located on one side of the idler roller connecting rod and is used to detect the position of the idler roller connecting rod. The signal output terminals of limit switches 12, 21, and 3 are respectively connected to the signal input terminals of the PLC controller. The signal input terminals of the PLC controller are also connected to the coke discharge control system, which includes a dry quenching coke discharge control system and a wet quenching coke discharge control system. The signal output terminals of the PLC controller are connected to the control terminals of drum motor 12, drum motor 24, electro-hydraulic lifting idler roller 8, and magnetic fixed shaft 9.

[0029] The working method of the sealing device for the coke tray feed inlet of the present invention includes the following process: I. During coke discharge in a dry quenching system: 1) The dry quenching and coke discharge control system transmits the coke discharge signal to the PLC controller of the sealing control system. 2) The PLC controller outputs a command signal to start the first drum motor 2, which retracts the wire rope 6 through the wire rope drum 1; at the same time, it controls the second drum motor 4 to start, which releases the sealing tape 5 through the sealing tape drum 3. 3) After being released, the sealing tape 5 extends longitudinally along the coking platform 19 from one end of the sealing tape drum 3 to one end of the wire rope drum 1. When the limit switch 12 detects that the sealing tape 5 has been released into place, it sends a signal to the PLC controller. The PLC controller controls the drum motor 1 2 and the drum motor 2 3 to stop rotating synchronously. 4) The PLC controller controls the electro-hydraulic lifting roller 8 to start, and the lifting roller extends upward to press the two ends of the sealing tape 5 tightly onto the coke baffle plate 20; 5) The PLC controller controls the magnetic fixed shaft 9 to be energized, so that the magnetic fixed shaft 9 is connected to the crank shaft 15 of the scraper coke discharge machine; 6) The PLC controller controls the start of the scraper coke discharger 14. When the crankshaft 15 of the scraper coke discharger rotates, the idler roller connecting rod is raised accordingly. When the limit switch three detects the idler roller connecting rod, it sends a signal to the PLC controller, and the interlock control of the scraper coke discharger 14 stops. At this time, the multiple sealing idlers 11 set on the idler roller connecting rod press the sealing tape 5 onto the coke baffle plate 20 and close the feed port on the coke baffle plate 20. 7) The PLC controller sends the sealing ready signal to the dry quenching coke discharge control system. The dry quenching coke discharge control system starts the belt conveyor 18 to transport coke and simultaneously starts the dust removal system to perform dust removal operation. II. When the dry quenching system stops discharging coke or switches to the wet quenching system for coke discharging: 1) The dry quenching and coke discharge control system will transmit the stop coke discharge signal to the PLC controller of the sealing control system; 2) The PLC controller controls the crankshaft 15 of the scraper coke discharge machine to rotate in the opposite direction and return to the initial working position. The idler roller connecting rod is lowered accordingly, the sealing tape 5 is separated from the coke baffle 20, and the feed port on the coke baffle 29 is exposed. 3) The PLC controller de-energizes the magnetic fixed shaft 9, causing the magnetic fixed shaft 9 to disengage from the crankshaft 15 of the scraper coke discharger; 4) The PLC controller controls the electro-hydraulic lifting roller 8 to start again, the lifting roller retracts downward, and the two ends of the sealing tape 5 are separated from the coke baffle 20. 5) The PLC controller restarts the first drum motor 2, releasing the wire rope 6 through the wire rope drum 1; at the same time, it restarts the second drum motor 4, recovering the sealing tape 5 through the sealing tape drum 3. 6) When limit switch 21 detects that the sealing tape 5 has been retracted to the correct position, it sends a signal to the PLC controller, and the PLC controller controls the drum motor 2 and drum motor 4 to stop operating.

[0030] The present invention discloses a sealing device for the feed inlet of a coke platform baffle plate, comprising a wire rope winding mechanism, a sealing tape winding mechanism, and a sealing roller mechanism, and can be automatically controlled by a control system.

[0031] The wire rope winding and unwinding mechanism consists of a wire rope drum 1, a drum motor 2, and a wire rope 6; the sealing tape winding and unwinding mechanism consists of a sealing tape drum 3, a drum motor 4, and a sealing tape 5. One end of the wire rope 6 is fixed to the wire rope drum 1, and the other end is connected to one end of the sealing tape 5 via an end connector 7. The other end of the sealing tape 5 is fixed to the sealing tape drum 3. Through the coordinated action of the wire rope drum 1 and the sealing tape drum 3, the sealing tape 5 remains flat during the laying and retraction process under the coke plate 20 on the coke platform 19.

[0032] To ensure a reliable connection between the wire rope 6 and the sealing tape 5, the two are connected by the tape end connector 7 (e.g., Figure 5 As shown, the tape end connector 7 is made of metal and is fixedly connected to the sealing tape 5. A round hole is provided on the tape end connector 7 for the steel wire rope 6 to pass through. There are at least two steel wire ropes 6. A drum is provided on the steel wire rope drum 1 corresponding to each steel wire rope 6 to ensure that each steel wire rope 6 is wound and unwound synchronously.

[0033] The wire rope drum 1 and drum motor 2, the sealing tape drum 3 and drum motor 4 can be installed in the two end chambers at both ends of the coke platform 19, respectively. The PLC controller is located in the control box 13, which is installed in one of the end chambers. The two electro-hydraulic lifting rollers 8 can also be installed in the corresponding end chambers. The sealing idler mechanism consists of two electro-hydraulic lifting idlers 8, multiple sealing idlers 11, and an idler linkage mechanism. The idler linkage mechanism comprises a magnetically attached fixed shaft 9, a swing arm, and an idler linkage. The magnetically attached fixed shaft 9 enables the sealing idler mechanism to connect and disconnect from the crankshaft 15 of the scraper coke discharger (the original mechanism of the scraper coke discharger 14). After the sealing idler mechanism is disconnected from the crankshaft 15, the idler linkage is supported by a bracket located below it. The idler linkage enables the synchronous movement of multiple sealing idlers 11.

[0034] Three sets of limit switches are installed. Limit switch 12 is used to detect whether the sealing tape 5 has been fully extended, limit switch 21 is used to detect whether the sealing tape has been fully retracted, and limit switch 3 is used to detect whether the idler roller connecting rod has reached the set position. The PLC controller realizes the interlocking action of each limit switch with drum motor 12, drum motor 24, magnetic fixed shaft 9, and electro-hydraulic lifting idler roller 8. The PLC controller is connected to the coke discharge control system to realize automatic sealing during coke discharge.

[0035] The coke platform baffle plate feeding port sealing device described in this invention has an automatic control function, which can automatically complete the sealing and unsealing actions of the coke platform baffle plate feeding port, ensuring environmental protection and safety during coke transportation.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sealing device for the feed inlet of a coke table baffle plate, characterized in that, The system includes a wire rope winding and unwinding mechanism, a sealing tape winding and unwinding mechanism, and a sealing idler mechanism. The wire rope winding and unwinding mechanism consists of a wire rope drum, a drum motor, and a wire rope. The sealing tape winding and unwinding mechanism consists of a sealing tape drum, a drum motor, and a sealing tape. The wire rope drum is located at one end of the coke platform and is driven by the drum motor. The sealing tape drum is located at the other end of the coke platform and is driven by the drum motor. One end of the wire rope is connected to the wire rope drum, and the other end is connected to one end of the sealing tape. The other end of the sealing tape is connected to the sealing tape drum. The straight sections of the wire rope and the sealing tape are located in the narrow space between the coke baffle plate and the belt conveyor belt below the coke platform. The sealing idler mechanism consists of two electro-hydraulic lifting idlers, multiple sealing idlers, and an idler linkage mechanism. One electro-hydraulic lifting idler is located at each end of the coke platform to press the two ends of the sealing tape tightly against the coke baffle plate. Multiple sealing rollers are spaced apart along the longitudinal direction of the coke table. Each sealing roller is connected to the crankshaft of the scraper coke discharge machine through a roller linkage mechanism. After the crankshaft of the scraper coke discharge machine rotates at an angle, each sealing roller can be raised synchronously and the sealing tape can be pressed tightly onto the coke baffle plate.

2. The sealing device for the coke tray feed inlet of a coke platform according to claim 1, characterized in that, A small coke station end chamber 1 is provided at one end of the coke station, and a small coke station end chamber 2 is provided at the other end; the wire rope drum and drum motor 1 are provided in the small coke station end chamber 1, and the sealing tape drum and drum motor 2 are provided in the small coke station end chamber 2.

3. The sealing device for the coke tray feed inlet of a coke platform according to claim 1, characterized in that, The steel wire rope and the sealing tape are connected by a tape end connector.

4. The sealing device for the coke tray feed inlet of a coke platform according to claim 1, characterized in that, The number of steel wire ropes is at least 2, and each steel wire rope drum is equipped with a drum corresponding to a steel wire rope.

5. The sealing device for the coke tray feed inlet of a coke platform according to claim 1, characterized in that, The idler roller linkage mechanism consists of a magnetically attached fixed shaft, a swing arm, and an idler roller linkage. The magnetically attached fixed shaft is fixed to the crankshaft of the scraper coke discharger by magnetic attraction and can rotate around its axis with the crankshaft of the scraper coke discharger. One end of the swing arm is connected to the magnetically attached fixed shaft, and the other end is connected to the idler roller linkage. Multiple sealed idler rollers are evenly spaced on the idler roller linkage.

6. The sealing device for the coke tray feed inlet of a coke platform according to claim 1, characterized in that, It also includes a sealing control system; the sealing control system consists of a PLC controller, limit switch one, limit switch two, and limit switch three; limit switch one is located on one side of the wire rope drum, limit switch two is located on one side of the sealing tape drum, and both limit switches one and two are used to detect the position of the sealing tape; limit switch three is located on one side of the idler roller connecting rod and is used to detect the position of the idler roller connecting rod; the signal output terminals of limit switches one, two, and three are respectively connected to the signal input terminals of the PLC controller, and the signal input terminals of the PLC controller are also connected to the coke discharge control system, which includes a dry quenching coke discharge control system and a wet quenching coke discharge control system; the signal output terminals of the PLC controller are connected to the control terminals of drum motor one, drum motor two, electro-hydraulic lifting idler roller, and magnetic fixed shaft.

7. A method for operating the sealing device for the coke tray feed inlet of any one of claims 1 to 6, characterized in that, The process includes the following: I. During coke discharge in a dry quenching system: 1) The dry quenching and coke discharge control system transmits the coke discharge signal to the PLC controller of the sealing control system. 2) The PLC controller outputs command signals to start the first drum motor, which retracts the wire rope through the wire rope drum; at the same time, it controls the second drum motor to start, which releases the sealing tape through the sealing tape drum. 3) After release, the sealing tape extends longitudinally along the coke platform from one end of the sealing tape drum to the other end of the wire rope drum. When limit switch one detects that the sealing tape has been released into place, it sends a signal to the PLC controller. The PLC controller controls drum motor one and drum motor two to stop rotating synchronously. 4) The PLC controller controls the electro-hydraulic lifting roller to start, and the lifting roller extends upward to press the two ends of the sealing tape tightly against the coke baffle plate; 5) The PLC controller controls the magnetic fixed shaft to be energized, so that the magnetic fixed shaft is connected to the crankshaft of the scraper coke discharge machine; 6) The PLC controller controls the start of the scraper coke discharge machine. When the crankshaft of the scraper coke discharge machine rotates, the idler roller connecting rod is raised accordingly. When the limit switch three detects the idler roller connecting rod, it sends a signal to the PLC controller to interlock and control the scraper coke discharge machine to stop. At this time, multiple sealing idlers on the idler roller connecting rod press the sealing tape onto the coke baffle plate and close the feed port on the coke baffle plate. 7) The PLC controller sends the sealing ready signal to the dry quenching and coke discharge control system. The dry quenching and coke discharge control system starts the belt conveyor to transport coke and simultaneously starts the dust removal system to perform dust removal operation. II. When the dry quenching system stops discharging coke or switches to the wet quenching system for discharging coke: 1) The dry quenching and coke discharge control system will transmit the stop coke discharge signal to the PLC controller of the sealing control system; 2) The PLC controller controls the crankshaft of the scraper coke discharge machine to rotate in the reverse direction and return to the initial working position. The idler roller connecting rod is lowered accordingly, the sealing tape is separated from the coke baffle, and the feed port on the coke baffle is exposed. 3) The PLC controller de-energizes the magnetic fixed shaft, causing it to disengage from the crankshaft of the scraper coke discharger; 4) The PLC controller controls the electro-hydraulic lifting roller to start again, the lifting roller retracts downward, and the two ends of the sealing tape separate from the coke baffle plate; 5) Once the PLC controller restarts the drum motor, the wire rope is released through the wire rope drum; Simultaneously, control the second drum motor to restart, and recycle the sealing tape through the sealing tape drum; 6) When limit switch 2 detects that the sealing tape has been retracted to the correct position, it sends a signal to the PLC controller, which then controls drum motor 1 and drum motor 2 to stop operating.

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