Coke oven smoke collection device

Abstract

The present invention belongs to the technical field of coke oven coking, and specifically discloses a coke oven smoke collection device, comprising a coke oven body, a position transfer mechanism symmetrically fixed on the upper edge of the coke oven body, an L-shaped bracket on the position transfer mechanism, a two-way docking active opening and closing mechanism fixed at one end of the L-shaped bracket, an air collecting hood on the lower side of the two-way docking active opening and closing mechanism, a negative pressure pipeline system provided above the coke oven body, and a responsive opening and closing mechanism provided at the end of the negative pressure pipeline system. The movable air collecting hood of the present invention can automatically dock and connect with the exhaust pipe of the corresponding carbonization chamber without a complex control system. When the air collecting hood moves to the target position, the pipeline is opened, and when the air collecting hood leaves, the pipeline is closed. No additional drive and control are required, and no multiple air collecting hoods are required to achieve accurate and efficient smoke collection for a single carbonization chamber.

Description

Technical Field

[0001] The invention belongs to the technical field of coke oven coking, and in particular relates to a coke oven smoke collecting device. Background Art

[0002] Coke ovens are important equipment for producing coke by high-temperature dry distillation of coal, and they play a vital role in the steel, chemical and other industries. Modern coke ovens are usually composed of multiple carbonization chambers in parallel, and each carbonization chamber independently performs coal loading, coking and coking operations. Since a large amount of smoke and harmful gases are generated during the coke production process, the effective collection and treatment of the smoke generated during the coking process is crucial for environmental protection and workers' health. At present, coke oven coking is an intermittent operation, and only a single carbonization chamber is coked at a time. This requires the design of the smoke collection device to take into account both high efficiency and flexibility for a single carbonization chamber. The existing coke oven smoke collection technology has the following main deficiencies:

[0003] Independent negative pressure collection systems based on mobile equipment: Some coke ovens install independent negative pressure collection systems on mobile coke pushers and coke interceptors. This solution requires equipping the mobile equipment with a complete exhaust gas treatment system, including fans, dust collectors, and purification devices. This results in a bulky system and increases the load and energy consumption of the mobile equipment. If the system on the mobile equipment only handles part of the exhaust gas treatment process, the incompletely purified exhaust gas needs to be transported to a fixed exhaust gas treatment device via pipes. However, due to the frequent movement of coke pushers and coke interceptors, rigid pipe connections are not feasible, and flexible pipes cannot withstand the high temperature and corrosive environment of coke oven discharge for a long time.

[0004] Independent control systems for multiple hoods: Another solution is to install an independent hood at the coke outlet of each carbonization chamber, connected to the exhaust gas treatment system via piping. This solution requires multiple hoods, valves, and independent control systems to ensure that only the hood corresponding to the carbonization chamber currently discharging coke is open. This results in a complex system structure, difficult control, and high maintenance costs. Furthermore, the multiple hoods occupy a large amount of space, hindering coke oven operation and maintenance.

[0005] Some coke ovens use a large, integrated hood that covers the entire coke discharge area. While this solution is simple in structure, the hood's wide coverage disperses the suction force, weakening the negative pressure. This requires a higher fan power to ensure adequate suction, increasing energy consumption and making it difficult to effectively capture the smoke and dust generated by the discharge of coke from a single carbonization chamber.

[0006] Mobile fume hoods: Similar to solutions based on mobile equipment, mobile fume hoods also face the challenge of pipe connection. To ensure reliable connection and durability, carbide pipes need to be used, which conflicts with the fume hood's mobility. Summary of the Invention

[0007] In response to the above situation, the present invention provides a coke oven smoke collection device, the movable gas collecting hood of the device can automatically connect with the smoke exhaust pipe of the corresponding carbonization chamber without a complicated control system. When the gas collecting hood moves to the target position, the pipeline is opened, and when the gas collecting hood leaves, the pipeline is closed. The device is bidirectional and compatible with the reciprocating motion of the coke pushing car and the coke intercepting car. It does not require additional drive and control, and does not require multiple gas collecting hoods. It can achieve accurate and efficient smoke collection for a single carbonization chamber, effectively solving the problems of dispersed suction and complex pipeline connection in the prior art.

[0008] The technical solution adopted by the present invention is as follows: The present invention proposes a coke oven smoke collection device, including a coke oven body, wherein a position transfer mechanism is symmetrically fixed on the upper edge of the coke oven body for moving between different carbonization chambers, the position transfer mechanism is respectively located above the outlets at both ends of the carbonization chamber of the coke oven body, and the length of the position transfer mechanism covers the entire coke oven body, an L-shaped bracket is provided on the position transfer mechanism, and a two-way docking active opening and closing mechanism is fixed at one end of the L-shaped bracket for actively opening and closing the collection channel, and an air collection hood is provided on the lower side of the two-way docking active opening and closing mechanism for collecting smoke, and the air collection hood is located above the outer side of the outlets at both ends of the carbonization chamber of the coke oven body, and a negative pressure pipeline system is provided above the coke oven body for providing negative pressure for collecting smoke, and a responsive opening and closing mechanism is provided at the end of the negative pressure pipeline system for cooperating with the two-way docking active opening and closing mechanism to realize the opening and closing of the collection channel, and the responsive opening and closing mechanism is located directly above the outer side of the outlets at both ends of each carbonization chamber of the coke oven body, and the two-way docking active opening and closing mechanism passes directly below the responsive opening and closing mechanism when it moves back and forth.

[0009] Furthermore, the two-way docking active opening and closing mechanism includes an air collecting pipe, which is fixed to one end of the L-shaped bracket, and the air collecting pipe is vertically arranged. A first docking ring is coaxially fixed to the outer side of the upper end of the air collecting pipe, and a horizontal rod is provided on the inner side of the upper end of the air collecting pipe. Both ends of the horizontal rod are fixedly connected to the inner wall of the air collecting pipe, and the upper side surface of the horizontal rod is flush with the upper side surface of the first docking ring. The horizontal rod passes through the axis of the air collecting pipe, and a center groove parallel to the horizontal rod is opened on the upper surface of the horizontal rod. The center groove passes through the axis of the air collecting pipe, and the upper surface of the first docking ring is connected to both ends of the center groove with side grooves, and the cross-sections of the side groove and the center groove are the same semicircular, the outer end of the side groove is open, and the two side grooves are arranged in parallel. The length direction of the side groove is parallel to the translation direction of the position transfer mechanism, and the acute angle between the center groove and the side groove is 45 degrees.

[0010] Furthermore, the responsive opening and closing mechanism includes a rising pipe, which is vertically connected and fixed to the end of the negative pressure pipe system. A fixed disk is coaxially fixed on the inner side of the rising pipe near the lower end position, and a follower disk of equal diameter is coaxially and tightly provided on the lower side of the fixed disk. A clamping shaft is coaxially fixed to the center of the upper side of the follower disk. The clamping shaft passes through the fixed disk upward and is coaxially engaged and rotatably connected with the fixed disk, so that the fixed disk and the follower disk can rotate coaxially relative to each other. Four first ventilation holes are opened in an array along the circumference of the axis, and four second ventilation holes are opened in an array along the circumference of the axis. The diameters of the first ventilation hole and the second ventilation hole are equal. The first ventilation hole and the second ventilation hole are equal. The distance between the hole axis and the fixed plate axis is equal to the distance between the second vent hole axis and the follower plate axis, and the follower plate is coaxially fixed with a follower shaft on the lower side of the follower shaft, and a rotating rod is horizontally fixed on the horizontal side of the follower shaft, and a sliding column is vertically fixed at one end of the rotating rod, and a second docking ring is coaxially fixed on the outer side of the lower end of the riser, and only the downward hemispherical end of the sliding column is located below the second docking ring, and two circular grooves are provided on the lower surface of the second docking ring along the axial circumference array, and a compression spring is fixed at the bottom of the circular groove, and a sealing head is fixed at the lower end of the compression spring, and the sealing head is tightly slidingly arranged in the circular groove. In the initial state of the compression spring, only the downward hemispherical end of the sealing head is located outside the circular groove.

[0011] Furthermore, the diameters of the riser and the gas collecting pipe are equal, the diameters of the first docking ring and the second docking ring are equal, the first docking ring can be coaxially docked with the second docking ring when translated, the upper side surface of the first docking ring is flush with the lower side surface of the second docking ring, so that gas leakage can be avoided when the first docking ring and the second docking ring are coaxially docked, the length of the first docking ring axis from the side groove in the direction perpendicular to the side groove is equal to the length of the sliding column axis from the riser axis, the hemispherical end of the sealing head can slide tightly with the side groove, the hemispherical end of the sliding column can slide tightly with the side groove and the center groove, and when the second docking ring is coaxially docked with the first docking ring, the two sealing heads are respectively located in the two side grooves, for blocking the airflow passing through the side groove.

[0012] Furthermore, in the initial state, the rotating rod is perpendicular to the translation direction of the position transfer mechanism and the first air vent is located in the middle of the two adjacent second air vents in the horizontal projection. When the first air vent is located in the middle of the two adjacent second air vents in the horizontal projection, the first air vent does not intersect with the second air vent, thereby closing the air flow channel.

[0013] Furthermore, the position transfer mechanism includes a slide rail, which is fixed on the upper side of the coke oven body. A screw is provided parallel to the slide rail, and both ends of the screw are engaged and rotatably connected with both ends of the slide rail. A slide is engaged and slidably provided on the slide rail, and the slide and the screw are connected by a ball screw. When the slide moves horizontally, it passes vertically above different carbonization chambers of the coke oven body. A motor is fixed at one end of the slide rail as the driving part of the position transfer mechanism, and the output end of the motor is coaxially and fixedly connected with the screw.

[0014] Furthermore, the negative pressure pipeline system includes a three-level branch pipe, which is symmetrically arranged at the upper edge of the coke oven body, parallel to the slide rail, and fixedly connected to the coke oven body through a supporting structure. The three-level branch pipe is connected to and fixed with a four-level branch pipe toward the outside of the coke oven body, and the four-level branch pipe is arranged in an array along the length direction of the three-level branch pipe. The four-level branch pipe is located above the outlets at both ends of the carbonization chamber of the coke oven body, and the ends of the four-level branch pipe are connected to the riser, and one end of the two three-level branch pipes is connected to and fixed with a two-level branch pipe. The middle of the two-level branch pipe is connected to and fixed with a first-level main pipe for connecting to a subsequent smoke treatment system.

[0015] Furthermore, the vertical section of the L-shaped bracket is vertically fixed on the slide.

[0016] Furthermore, the gas collecting hood is sealed and fixedly arranged at the lower end of the gas collecting pipe, and the gas collecting hood can cover the coke pushing and intercepting areas of a single carbonization chamber of the coke oven body, thereby collecting the coke pushing and intercepting smoke.

[0017] The beneficial effects achieved by the present invention using the above structure are as follows:

[0018] (1) The core of the present invention lies in the ingenious coordination of the responsive opening and closing mechanism and the two-way docking active opening and closing mechanism. The two-way docking active opening and closing mechanism moves with the gas collecting hood. When it reaches the top of the target carbonization chamber, the first docking ring on it is precisely docked with the second docking ring on the corresponding responsive opening and closing mechanism. During this process, the side groove on the first docking ring drives the sliding column, and the sliding column drives the rotating rod to rotate, so that the second air vent on the follower disk is aligned with the first air vent on the fixed disk, opening the smoke exhaust channel. When the gas collecting hood leaves, the first docking ring continues to move, and the sliding column drives the rotating rod to continue to rotate, the second air vent is staggered with the first air vent, and the channel is closed. This design realizes precise opening and closing control, and only opens the smoke exhaust channel of the corresponding carbonization chamber when needed, thereby realizing efficient smoke and dust collection, avoiding suction dispersion, and reducing energy consumption. At the same time, since the docking and separation processes are completed automatically, no additional control system is required, which simplifies the control system of the coke oven and improves the degree of automation of the operation.

[0019] (2) The bidirectional docking feature makes it perfectly compatible with the reciprocating motion of pushing and blocking coke, further simplifying the device structure. The design of the docking ring and the sealing head ensures reliable sealing, minimizes smoke leakage, and is beneficial to environmental protection and worker health. The need to install exhaust gas treatment equipment on mobile equipment also further reduces energy consumption. Compared with the independent control system of multiple gas collection hoods, the present invention only requires one set of gas collection hoods, which greatly saves the space above the coke oven and is beneficial to the operation and maintenance of the coke oven. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a first three-dimensional structural schematic diagram of a coke oven smoke collection device proposed by the present invention.

[0021] Figure 2 This is a second three-dimensional structural schematic diagram of a coke oven smoke collection device proposed by the present invention.

[0022] Figure 3 This is a structural schematic diagram of the positional relationship between a two-way docking active opening and closing mechanism and an L-shaped bracket of a coke oven smoke collection device proposed by the present invention.

[0023] Figure 4 for Figure 1 Enlarged view of part A.

[0024] Figure 5 This is a structural schematic diagram of a two-way docking active opening and closing mechanism of a coke oven smoke collection device proposed by the present invention.

[0025] Figure 6 This is a structural schematic diagram of the positional relationship between the central slot and side slots of a coke oven smoke collection device proposed by the present invention.

[0026] Figure 7 This is a structural schematic diagram of the positional relationship between the four-stage branch pipes and the riser of a coke oven smoke collection device proposed by the present invention.

[0027] Figure 8 This is a schematic diagram of the explosion structure of the responsive opening and closing mechanism of the coke oven smoke collection device proposed by the present invention.

[0028] Figure 9 This is a structural schematic diagram of the positional relationship between the first docking ring and the second docking ring of a coke oven smoke collection device proposed by the present invention.

[0029] Figure 10 This is a working principle diagram of a coke oven smoke collection device proposed by the present invention.

[0030] Among them, 1. coke oven body, 2. position transfer mechanism, 21. slide rail, 22. screw, 23. slide, 24. motor, 3. L-shaped bracket, 4. two-way docking active opening and closing mechanism, 41. gas collecting pipe, 42. first docking ring, 43. horizontal rod, 44. center groove, 45. side groove, 5. negative pressure pipeline system, 51. first-level main pipe, 52. second-level branch pipe, 53. third-level branch pipe, 54. fourth-level branch pipe, 6. responsive opening and closing mechanism, 61. rising pipe, 611. fixed plate, 612. first air vent, 62. follow-up plate, 621. second air vent, 63. clamping shaft, 64. follow-up shaft, 65. rotating rod, 66. sliding column, 67. second docking ring, 671. circular groove, 68. sealing head, 69. compression spring, 7. gas collecting hood.

[0031] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0034] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10As shown, the present invention proposes a coke oven smoke collection device, comprising a coke oven body 1, a position transfer mechanism 2 is symmetrically fixed on the upper edge of the coke oven body 1, the position transfer mechanism 2 is respectively located above the outlets at both ends of the carbonization chamber of the coke oven body 1, and the length of the position transfer mechanism 2 covers the entire coke oven body 1, an L-shaped bracket 3 is provided on the position transfer mechanism 2, one end of the L-shaped bracket 3 is fixed with a two-way docking active opening and closing mechanism 4, an air collecting hood 7 is provided on the lower side of the two-way docking active opening and closing mechanism 4, the air collecting hood 7 is located above the outer side of the outlets at both ends of the carbonization chamber of the coke oven body 1, a negative pressure pipeline system 5 is provided above the coke oven body 1, a responsive opening and closing mechanism 6 is provided at the end of the negative pressure pipeline system 5, the responsive opening and closing mechanism 6 is located directly above the outer side of the outlets at both ends of each carbonization chamber of the coke oven body 1, and the two-way docking active opening and closing mechanism 4 passes directly below the responsive opening and closing mechanism 6 when it moves back and forth.

[0035] Among them, the two-way docking active opening and closing mechanism 4 includes an air collecting pipe 41, which is fixed at one end of the L-shaped bracket 3, and the air collecting pipe 41 is arranged vertically. A first docking ring 42 is coaxially fixed to the outer side of the upper end of the air collecting pipe 41, and a horizontal rod 43 is provided on the inner side of the upper end of the air collecting pipe 41. Both ends of the horizontal rod 43 are fixedly connected to the inner wall of the air collecting pipe 41, and the upper side surface of the horizontal rod 43 is flush with the upper side surface of the first docking ring 42. The horizontal rod 43 passes through the axis of the air collecting pipe 41, and a center groove 44 parallel to the horizontal rod 43 is opened on the upper side surface of the horizontal rod 43. The center groove 44 passes through the axis of the air collecting pipe 41, and the upper side surface of the first docking ring 42 is connected to the two ends of the center groove 44. The side groove 45 and the center groove 44 have the same semicircular cross-section, and the outer end of the side groove 45 is open. The two side grooves 45 are arranged in parallel, and the length direction of the side groove 45 is parallel to the translation direction of the position transfer mechanism 2. The acute angle between the center groove 44 and the side groove 45 is 45 degrees.

[0036] Among them, the responsive opening and closing mechanism 6 includes a rising pipe 61, which is vertically connected and fixed to the end of the negative pressure pipe system 5. A fixed disk 611 is coaxially fixed on the inner side of the rising pipe 61 near the lower end. A follower disk 62 of equal diameter is coaxially and tightly provided on the lower side of the fixed disk 611. A clamping shaft 63 is coaxially fixed to the center of the upper side of the follower disk 62. The clamping shaft 63 passes through the fixed disk 611 upward and is coaxially engaged and rotatably connected with the fixed disk 611. Four first air holes 612 are opened in an array along the circumference of the axis, and four second air holes 621 are opened in an array along the circumference of the axis. The diameters of the first air hole 612 and the second air hole 621 are equal, and the axis of the first air hole 612 is aligned with the axis of the fixed disk 611. The spacing is equal to the spacing between the axis of the second vent hole 621 and the axis of the follower disk 62. A follower shaft 64 is coaxially fixed to the lower side of the follower disk 62. A rotating rod 65 is horizontally fixed to the horizontal side of the follower shaft 64. A sliding column 66 is vertically fixed to one end of the rotating rod 65. A second docking ring 67 is coaxially fixed to the outer side of the lower end of the riser 61. Only the downward hemispherical end of the sliding column 66 is located below the second docking ring 67. Two circular grooves 671 are provided on the lower surface of the second docking ring 67 along the axial circumference array. A compression spring 69 is fixed to the bottom of the circular groove 671. A sealing head 68 is fixed to the lower end of the compression spring 69. The sealing head 68 is slidingly arranged in close contact with the circular groove 671. When the compression spring 69 is in the initial state, only the downward hemispherical end of the sealing head 68 is located outside the circular groove 671.

[0037] Among them, the diameter of the riser 61 is equal to that of the gas collecting pipe 41, the diameter of the first docking ring 42 is equal to that of the second docking ring 67, the first docking ring 42 can be coaxially docked with the second docking ring 67 when it moves horizontally, the upper side of the first docking ring 42 is flush with the lower side of the second docking ring 67, the length of the axis of the first docking ring 42 from the side groove 45 in the direction perpendicular to the side groove 45 is equal to the length of the axis of the sliding column 66 from the axis of the riser 61, the hemispherical end of the sealing head 68 can slide tightly with the side groove 45, the hemispherical end of the sliding column 66 can slide tightly with the side groove 45 and the center groove 44, and when the second docking ring 67 is coaxially docked with the first docking ring 42, the two sealing heads 68 are respectively located in the two side grooves 45.

[0038] Among them, in the initial state, the rotating rod 65 is perpendicular to the translation direction of the position transfer mechanism 2 and the first air vent 612 is located in the middle of the two adjacent second air vents 621 in the horizontal projection. When the first air vent 612 is located in the middle of the two adjacent second air vents 621 in the horizontal projection, the first air vent 612 does not intersect with the second air vent 621. The position transfer mechanism 2 includes a slide rail 21, and the slide rail 21 is fixedly arranged on the upper side of the coke oven body 1. A screw 22 is provided in parallel on the slide rail 21. The two ends of the screw 22 are engaged and rotatably connected with the two ends of the slide rail 21. A slide 23 is engaged and slidably provided on the slide rail 21. The slide 23 and the screw 22 are connected by a ball screw. When the slide 23 translates, it passes vertically above different carbonization chambers of the coke oven body 1. A motor 24 is fixed at one end of the slide rail 21, and the output end of the motor 24 is coaxially fixedly connected with the screw 22.

[0039] Among them, the negative pressure pipeline system 5 includes a three-level branch pipe 53, which is symmetrically arranged at the upper edge of the coke oven body 1. The three-level branch pipe 53 is parallel to the slide rail 21. The three-level branch pipe 53 is fixedly connected to the coke oven body 1 through a supporting structure. The three-level branch pipe 53 is connected to the outside of the coke oven body 1 and is fixed with a four-level branch pipe 54. The four-level branch pipe 54 is arranged in an array along the length direction of the three-level branch pipe 53. The four-level branch pipe 54 is located above the outlets at both ends of the carbonization chamber of the coke oven body 1. The end of the four-level branch pipe 54 is connected to the riser 61. One end of the two three-level branch pipes 53 is commonly connected to a two-level branch pipe 52, and the middle of the two-level branch pipe 52 is connected to a first-level main pipe 51.

[0040] Among them, the vertical section of the L-shaped bracket 3 is vertically fixed on the slide 23, and the gas collecting hood 7 is sealed and fixed at the lower end of the gas collecting pipe 41. The gas collecting hood 7 can cover the coke pushing and intercepting areas of a single carbonization chamber of the coke oven body 1.

[0041] During specific use, the position transfer mechanism 2 uses a ball screw connection method to enable the slide 23 to drive the L-shaped bracket 3 to move back and forth along the direction of the three-level branch pipe 53, so that the L-shaped bracket 3 drives the two-way docking active opening and closing mechanism 4 and the gas collecting hood 7 to pass between each carbonization chamber. By reasonably setting the structural dimensions, when the slide 23 moves to a specific position, the first docking ring 42 can be coaxially docked with one of the second docking rings 67, and the first docking ring 42 and the second docking ring 67 are in close contact. This driving method of the position transfer mechanism 2 is an existing technology well known to those skilled in the art. It can achieve the same movement path as the coke pushing car and the coke blocking car, so its specific operating principle is no longer described in detail. When the responsive opening and closing mechanism 6 is in the initial state, that is, it is not affected by the two-way docking active opening and closing mechanism 4, the rotating rod 65 is perpendicular to the translation direction of the position transfer mechanism 2 and the first air vent 612 is located in the middle of the two adjacent second air vents 621 in the horizontal projection. At this time, the first air vent 612 does not intersect with the second air vent 621. Therefore, the outlet of the riser 61 is blocked by the cooperation of the fixed plate 611 and the follower plate 62, thereby achieving the blocking of the negative pressure pipeline system 5 as a whole.

[0042] When a carbonization chamber needs to take coke, the coke pushing car and the coke intercepting car move to the two ends of the target carbonization chamber, the coke pushing car pushes the coke in the carbonization chamber forward, and the coke intercepting car intercepts the coke and loads it into the car from the other side. Before this, the two symmetrical two-way docking active opening and closing mechanisms 4 move simultaneously from any direction toward the responsive opening and closing mechanism 6 of the target position, and the two cooperate to realize the connection of the riser 61 at the target position. After the negative pressure airflow is turned on, the coke pushing dust and coke intercepting dust generated at the target position can be collected by negative pressure through the negative pressure pipeline system 5 and the gas collecting hood 7, and the other risers 61 are in a blocked state, specifically as follows: Since the length of the axis of the first docking ring 42 in the direction perpendicular to the side groove 45 is equal to the length of the axis of the sliding column 66 from the axis of the riser 61, and the length direction of the side groove 45 is parallel to the translation direction of the position transfer mechanism 2, and the rotating rod 65 is perpendicular to the translation direction of the position transfer mechanism 2 in the initial state, the rotating rod 65 is perpendicular to the translation direction of the position transfer mechanism 2. In the side groove 45, it is further concluded that one of the side grooves 45 will be opposite to the sliding post 66. When the first docking ring 42 and the second docking ring 67 approach each other, the hemispherical end of the sliding post 66 will enter the side groove 45. As the sliding in the side groove 45 drives the rotating rod 65 and the follower plate 62 to rotate around the axis of the fixed plate 611, the relative positions of the first vent hole 612 and the second vent hole 621 will change. When the first docking ring 42 and the second docking ring 67 are coaxially docked, the follower shaft 64 will be located at the center position of the center groove 44, so the rotating rod 65 will be parallel to the center groove 44. Since the acute angle between the center groove 44 and the side groove 45 is 45 degrees, according to the geometric principle, the angle between the rotating rod 65 and the center groove 44 is 45 degrees at the beginning. Now that they are parallel, it means that the rotating rod 65 has rotated 45 degrees. Initially, the angle between the second air hole 621 and the adjacent first air hole 612 is 45 degrees. Therefore, the two will completely overlap at this time, thereby realizing the connection between the riser 61 and the gas collecting pipe 41.

[0043] Since the side groove 45 is connected to the outside world, there will be air leakage, so the sealing head 68 and the compression spring 69 will play a role. When the second docking ring 67 and the first docking ring 42 are just docked, the first docking ring 42 will press the closest sealing head 68 into the circular groove 671 to prevent obstruction of docking. When the first docking ring 42 and the second docking ring 67 are coaxially docked, the two sealing heads 68 are respectively located in the two side grooves 45. Under the action of the compression spring 69, the hemispherical end of the sealing head 68 is completely located in the side groove 45 to achieve airflow blocking, thereby achieving complete sealing.

[0044] After the smoke and dust are collected, the negative pressure airflow is closed, and the first docking ring 42 is controlled to continue to move forward. According to the positional relationship between the slide post 66 and the center groove 44, the slide post 66 moves from one end of the center groove 44 to the other end, and finally enters the other side groove 45 and moves out of the other side groove 45. The final rotating rod 65 is rotated 180 degrees compared with the initial rotating rod 65. Since there are four second air holes 621, the distribution positions of the four second air holes 621 after rotating 180 degrees are the same as the initial positions. Therefore, the fixed plate 611 and the follower plate 62 finally block the riser 61, so that the riser 61 is restored to the blocked state after the first docking ring 42 and the second docking ring 67 are separated. Since the slide post 66 leaves the corresponding side groove 45 when separating, if it moves in the opposite direction again, the slide post 66 can still enter the corresponding side groove 45 to realize the re-cooperation of the responsive opening and closing mechanism 6 and the two-way docking active opening and closing mechanism 4, thereby realizing two-way repeated opening and closing.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0046] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

[0047] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A coke oven smoke collection device, comprising a coke oven body (1), characterized in that: A position transfer mechanism (2) is symmetrically fixed on the upper edge of the coke oven body (1), and the position transfer mechanism (2) is respectively located above the outlets at both ends of the carbonization chamber of the coke oven body (1). The length of the position transfer mechanism (2) covers the entire coke oven body (1). An L-shaped bracket (3) is provided on the position transfer mechanism (2), and a two-way docking active opening and closing mechanism (4) is fixed at one end of the L-shaped bracket (3). A gas collecting hood (7) is provided on the lower side of the two-way docking active opening and closing mechanism (4), and the gas collecting hood (7) is located above the outer sides of the outlets at both ends of the carbonization chamber of the coke oven body (1). A negative pressure pipeline system (5) is provided above the coke oven body (1), and a responsive opening and closing mechanism (6) is provided at the end of the negative pressure pipeline system (5). The responsive opening and closing mechanism (6) is located directly above the outer sides of the outlets at both ends of each carbonization chamber of the coke oven body (1). When the two-way docking active opening and closing mechanism (4) moves back and forth, it passes directly below the responsive opening and closing mechanism (6); The two-way docking active opening and closing mechanism (4) includes an air collecting pipe (41), the air collecting pipe (41) is fixedly arranged at one end of the L-shaped bracket (3), a first docking ring (42) is coaxially fixedly arranged on the outer side of the upper end of the air collecting pipe (41), a horizontal rod (43) is arranged on the inner side of the upper end of the air collecting pipe (41), a center groove (44) parallel to the horizontal rod (43) is opened on the upper side surface of the horizontal rod (43), and side grooves (45) are opened on the upper side surface of the first docking ring (42) at both ends of the center groove (44); The responsive opening and closing mechanism (6) comprises a rising pipe (61), the rising pipe (61) is vertically connected and fixed to the end of the negative pressure pipe system (5), a fixed plate (611) is coaxially fixed on the inner side of the rising pipe (61) near the lower end, a follower plate (62) of equal diameter is coaxially and tightly provided on the lower side of the fixed plate (611), four first vent holes (612) are provided in an array along the axial circumference of the fixed plate (611), four second vent holes (621) are provided in an array along the axial circumference of the follower plate (62), a follower shaft (64) is coaxially fixed on the lower side of the follower shaft (64), a rotating rod (65) is horizontally fixed on the horizontal side of the rotating rod (65), a sliding column (66) is vertically fixed on one end of the rotating rod (65), and a second docking ring (67) is coaxially fixed on the outer side of the lower end of the rising pipe (61).

2. The coke oven smoke collection device according to claim 1, characterized in that: The gas collecting pipe (41) is arranged vertically, and both ends of the horizontal rod (43) are fixedly connected to the inner wall of the gas collecting pipe (41). The upper side surface of the horizontal rod (43) is flush with the upper side surface of the first docking ring (42). The horizontal rod (43) passes through the axis of the gas collecting pipe (41), and the central groove (44) passes through the axis of the gas collecting pipe (41). The cross-sections of the side groove (45) and the central groove (44) are the same semicircular. The outer ends of the side grooves (45) are open, and the two side grooves (45) are arranged in parallel. The length direction of the side grooves (45) is parallel to the translation direction of the position transfer mechanism (2), and the acute angle between the central groove (44) and the side grooves (45) is 45 degrees.

3. The coke oven smoke collecting device according to claim 2, characterized in that: A clamping shaft (63) is coaxially fixed to the center of the upper side of the follower disk (62). The clamping shaft (63) passes through the fixed disk (611) upwards and is coaxially engaged with the fixed disk (611) for rotational connection. The first vent hole (612) and the second vent hole (621) have the same diameter. The distance between the axis of the first vent hole (612) and the axis of the fixed disk (611) is equal to the distance between the axis of the second vent hole (621) and the axis of the follower disk (62). The sliding column (66) has only a downward The hemispherical end is located below the second docking ring (67). Two circular grooves (671) are arranged in an array along the circumference of the axis on the lower surface of the second docking ring (67). A compression spring (69) is fixedly provided at the bottom of the circular groove (671). A sealing head (68) is fixedly provided at the lower end of the compression spring (69). The sealing head (68) is tightly slidingly arranged with the circular groove (671). When the compression spring (69) is in the initial state, only the downward-facing hemispherical end of the sealing head (68) is located outside the circular groove (671).

4. A coke oven smoke collection device according to claim 3, characterized in that: The diameters of the riser (61) and the gas collecting pipe (41) are equal, the diameters of the first docking ring (42) and the second docking ring (67) are equal, the first docking ring (42) can be coaxially docked with the second docking ring (67) when translated, the upper side of the first docking ring (42) is flush with the lower side of the second docking ring (67), the length of the axis of the first docking ring (42) from the side groove (45) in a direction perpendicular to the side groove (45) is equal to the length of the axis of the sliding column (66) from the axis of the riser (61), the hemispherical end of the sealing head (68) can be tightly slidably matched with the side groove (45), the hemispherical end of the sliding column (66) can be tightly slidably matched with the side groove (45) and the center groove (44), and when the second docking ring (67) and the first docking ring (42) are coaxially docked, the two sealing heads (68) are respectively located in the two side grooves (45).

5. The coke oven smoke collecting device according to claim 4, characterized in that: In the initial state, the rotating rod (65) is perpendicular to the translation direction of the position transfer mechanism (2) and the first vent hole (612) is located in the middle of two adjacent second vent holes (621) in the horizontal projection. When the first vent hole (612) is located in the middle of two adjacent second vent holes (621) in the horizontal projection, the first vent hole (612) does not intersect with the second vent hole (621).

6. The coke oven smoke collecting device according to claim 5, characterized in that: The position transfer mechanism (2) includes a slide rail (21), the slide rail (21) is fixedly arranged on the upper side of the coke oven body (1), a screw rod (22) is parallel to the slide rail (21), the two ends of the screw rod (22) are engaged and rotatably connected with the two ends of the slide rail (21), a slide table (23) is engaged and slidably provided on the slide rail (21), the slide table (23) and the screw rod (22) are connected by a ball screw, and the slide table (23) vertically passes over different carbonization chambers of the coke oven body (1) when it moves horizontally, and a motor (24) is fixedly arranged at one end of the slide rail (21), and the output end of the motor (24) is coaxially and fixedly connected with the screw rod (22).

7. The coke oven smoke collecting device according to claim 6, characterized in that: The negative pressure pipe system (5) includes a three-level branch pipe (53), the three-level branch pipe (53) is symmetrically arranged on the upper edge of the coke oven body (1), the three-level branch pipe (53) is parallel to the slide rail (21), the three-level branch pipe (53) is fixedly connected to the coke oven body (1) through a supporting structure, the three-level branch pipe (53) is connected and fixedly provided with a four-level branch pipe (54) toward the outside of the coke oven body (1), the four-level branch pipe (54) is arrayed along the length direction of the three-level branch pipe (53), the four-level branch pipe (54) is located above the outlets at both ends of the carbonization chamber of the coke oven body (1), the end of the four-level branch pipe (54) is connected and provided with a riser (61), one end of the two three-level branch pipes (53) is commonly connected and fixedly provided with a two-level branch pipe (52), and the middle of the two-level branch pipe (52) is connected and fixedly provided with a first-level main pipe (51).

8. The coke oven smoke collecting device according to claim 7, characterized in that: The vertical section of the L-shaped bracket (3) is vertically fixed on the slide (23).

9. The coke oven smoke collection device according to claim 8, characterized in that: The gas collecting hood (7) is sealed and fixedly arranged at the lower end of the gas collecting pipe (41), and the gas collecting hood (7) can cover the coke pushing and intercepting areas of a single carbonization chamber of the coke oven body (1).

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