Automatic opening and closing device for water seal cover of ascension pipe of coke oven

Abstract

The utility model belongs to the technical field of coking production in the coking industry, and particularly relates to an automatic opening and closing device for a water seal cover of a coke oven riser. Comprising a coke oven ascending pipe, a control system, a first driving device, a second driving device, a water seal cover swing arm, a flap valve swing arm, a first fixing seat, a second fixing seat, a water seal cover opening in-place limiting piece, a water seal cover closing in-place limiting piece, a flap valve opening in-place limiting piece and a flap valve closing in-place limiting piece, the water seal cover swing arm is fixedly connected with the water seal cover, the first driving device is hinged to the first fixing base, the water seal cover swing arm is hinged, the flap valve swing arm is fixedly connected with the flap valve, and the second driving device is hinged to the second fixing base and the flap valve swing arm. According to the automatic opening and closing device for the water seal cover of the ascension pipe of the coke oven, the structure of a built coke oven does not need to be changed, only the built coke oven needs to be transformed, the transformation difficulty is small, the cost is low, and the automatic opening and closing device is suitable for most enterprises.

Description

Technical Field

[0001] The utility model belongs to the technical field of coking production in the coking industry, and in particular relates to an automatic opening and closing device for a water sealing cover of a coke oven riser. Background Art

[0002] The coke oven riser is the channel for the raw gas in the carbonization chamber to be discharged during the coking production process. When the coke in the carbonization chamber reaches the end of coking, it is necessary to close the flap valve at the end of the riser and open the water seal cover on the top of the riser to balance the pressure in the carbonization chamber. After the coke pushing is completed, close the water seal cover on the top of the riser and open the flap valve at the end of the riser.

[0003] In the prior art, the opening and closing of flap valves and water seals require manual operation by on-site operators, which is labor-intensive, prone to misoperation, and prone to environmental and safety issues. In newly built coke ovens, such as the patent document with publication number CN105316012A and invention name "A pressure regulating control device and method for carbonization chamber in the coking process of a large coke oven", a new raw gas export system has been developed, which eliminates the flap valve and realizes automatic control of the carbonization chamber pressure. However, for the coke ovens that have been built, this type of transformation is expensive and difficult, and very few coke ovens have undergone this type of transformation. Most companies still use manual operation to open and close the water seals and flap valves in the riser system. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic opening and closing device for the water seal cover of the coke oven riser applicable to the built coke oven, and the specific technical scheme is as follows:

[0005] An automatic opening and closing device for a water seal cover of a coke oven riser comprises a coke oven riser, wherein the coke oven riser is provided with a water seal cover and a flap valve, and further comprises a control system, a first drive device, a second drive device, a water seal cover swing arm, a flap valve swing arm, a first fixed seat, a second fixed seat, a water seal cover opening position limiter, a water seal cover closing position limiter, a flap valve opening position limiter and a flap valve closing position limiter.

[0006] The water seal cover swing arm is fixedly connected to the water seal cover, one end of the first driving device is hinged to the first fixing seat, and the other end is hinged to the water seal cover swing arm, when the water seal cover is opened to the maximum position, the water seal cover swing arm contacts the water seal cover open position limiter, and when the water seal cover is closed, the water seal cover swing arm contacts the water seal cover closed position limiter;

[0007] The flap valve swing arm is fixedly connected to the flap valve, one end of the second driving device is hinged to the second fixed seat, and the other end is hinged to the flap valve swing arm. When the flap valve is opened to the maximum position, the flap valve swing arm contacts the flap valve open position limiter, and when the flap valve is closed, the flap valve swing arm contacts the flap valve closed position limiter;

[0008] The control system includes a first button, a second button, and a pneumatic system controller. The first button is used to send a control instruction of "close the flap valve and open the water seal cover" to the pneumatic system controller, and the second button is used to send a control instruction of "close the water seal cover and open the flap valve" to the pneumatic system controller;

[0009] The first driving device, the second driving device, the water seal cover open-in-place limit piece, the water seal cover closed-in-place limit piece, the flap valve open-in-place limit piece, the flap valve closed-in-place limit piece, the first button, and the second button are all signal-connected to the pneumatic system controller.

[0010] The first driving device is used to drive the swing of the water seal cover swing arm, thereby controlling the opening and closing of the water seal cover; the second driving device is used to drive the swing of the flap valve swing arm, thereby controlling the opening and closing of the flap valve. When the water seal cover swing arm swings to contact the water seal cover open-in-place limit piece, the water seal cover open-in-place limit piece sends a signal of "the water seal cover has been opened" to the pneumatic system controller, and the pneumatic system controller controls the water seal cover swing arm to stop swinging through the first driving device; when the water seal cover swing arm swings to contact the water seal cover closed-in-place limit piece, the water seal cover closed-in-place limit piece sends a signal of "the water seal cover has been closed" to the pneumatic system controller, and the pneumatic system controller controls the water seal cover swing arm to stop swinging through the first driving device and controls the flap valve to open through the second driving device. When the flap valve swing arm swings to contact the flap valve open-in-place limit piece, the flap valve open-in-place limit piece sends a signal of "the flap valve has been opened" to the pneumatic system controller, and the pneumatic system controller controls the flap valve swing arm to stop swinging through the second driving device; when the flap valve swing arm swings to contact the flap valve closed-in-place limit piece, the flap valve closed-in-place limit piece sends a signal of "the flap valve has been closed" to the pneumatic system controller, and the pneumatic system controller controls the flap valve swing arm to stop swinging through the second driving device and controls the water seal cover to open through the second driving device.

[0011] Further, it also includes a coal charging car and a coal charging car working position. The control system further includes a magnetic induction limiter, a magnet, and a locomotive in-place display lamp. The magnetic induction limiter is arranged on the coal charging car, the magnet is arranged on the coal charging car working position, and the magnetic induction limiter is signal-connected to the locomotive in-place display lamp.

[0012] The present utility model does not limit the first driving device and the second driving device. For example, they can be a cylinder, a hydraulic cylinder, etc. In a specific embodiment, the first driving device includes a gas supply system A and a water seal cover pneumatic cylinder. The gas supply system A is connected to the water seal cover pneumatic cylinder through a first gas pipeline. The gas supply system A is signal-connected to the pneumatic system controller. One end of the water seal cover pneumatic cylinder is hinged to a first fixed seat, and the other end is hinged to the water seal cover swing arm;

[0013] The second driving device includes an air supply system B and a flap valve pneumatic cylinder. The air supply system B is connected to the flap valve pneumatic cylinder through a second air pipeline. The air supply system B is signal-connected to the pneumatic system controller. One end of the flap valve pneumatic cylinder is hinged to the second fixed seat, and the other end is hinged to the flap valve swing arm.

[0014] Both the water seal cover pneumatic cylinder and the flap valve pneumatic cylinder are double-acting cylinders.

[0015] Furthermore, the control system further includes a locomotive signal transmitter and a locomotive signal converter. The locomotive signal transmitter is signal-connected to the first button, the second button, and the locomotive signal converter. The locomotive signal converter is signal-connected to the pneumatic system controller.

[0016] Furthermore, the control system further includes a first indicator light and a second indicator light. Both the first indicator light and the second indicator light are signal-connected to the pneumatic system controller. The first indicator light and the second indicator light light up after the automatic opening and closing device of the coke oven riser pipe water seal cover completes the operations of "closing the flap valve and opening the water seal cover" and "closing the water seal cover and opening the flap valve", respectively, to prompt the operator that the automatic operation has been completed.

[0017] Furthermore, the first indicator light is arranged on the first button, and the second indicator light is arranged on the second button.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] (1) When using the automatic opening and closing device of the coke oven riser pipe water seal cover of the present utility model, when it is necessary to close the flap valve and open the water seal cover or close the water seal cover and open the flap valve, the operator only needs to press the first button or the second button to send a corresponding control instruction to the pneumatic system controller. The pneumatic system controller can then control the opening or closing of the water seal cover through the first driving device and the water seal cover swing arm, control the opening or closing of the flap valve through the second driving device and the flap valve swing arm, and control the position and time of the opening or closing of the water seal cover or the flap valve through the water seal cover open-in-place limit member, the water seal cover closed-in-place limit member, the flap valve open-in-place limit member, and the flap valve closed-in-place limit member, realizing the automatic control of the opening and closing of the water seal cover and the flap valve, reducing the labor intensity of the staff, and avoiding a series of drawbacks such as misoperations caused by manual operations and environmental protection and safety problems easily caused by manual operations.

[0020] (2) The automatic opening and closing device for the water seal cover of the coke oven riser pipe of the present utility model is provided with a water seal cover swing arm and a flap valve swing arm on the water seal cover and the flap valve of the coke oven riser pipe, and controls the opening or closing of the water seal cover and the flap valve by controlling the swing of the water seal cover swing arm and the flap valve swing arm through the control system. Therefore, it is not necessary to change the structure of the built coke oven, and only need to transform on the basis of the built coke oven, with small transformation difficulty and low cost, which is applicable to most enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the automatic opening and closing device for the water seal cover of the coke oven riser pipe in Embodiment 1.

[0022] Wherein, 1 - coke oven riser pipe, 2 - water seal cover swing arm, 3 - flap valve swing arm, 4 - first fixed seat, 5 - second fixed seat, 6 - water seal cover open in-place limit part, 7 - water seal cover closed in-place limit part, 8 - flap valve open in-place limit part, 9 - flap valve closed in-place limit part, 10 - water seal cover, 11 - flap valve, 12 - pneumatic system controller, 13 - first button, 14 - second button, 15 - magnetic induction limiter, 16 - magnet, 17 - locomotive in-place display lamp, 18 - locomotive signal transmitter, 19 - locomotive signal converter, 20 - gas supply system A, 21 - water seal cover pneumatic cylinder, 22 - first gas transmission pipeline, 23 - gas supply system B, 24 - flap valve pneumatic cylinder, 25 - second gas transmission pipeline. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings.

[0024] For the elaboration of the required spatial relationship, three orthogonal directions of "front and back", "left and right", and "up and down (or vertical)" can be defined, and a spatial rectangular coordinate system is defined through the relative position relationship.

[0025] Embodiment 1

[0026] As Figure 1 shown, the present utility model discloses an automatic opening and closing device for the water seal cover of a coke oven riser pipe, including a coke oven riser pipe 1, a coal charging car, a coal charging car working position, a control system, a first driving device, a second driving device, a water seal cover swing arm 2, a flap valve swing arm 3, a first fixed seat 4, a second fixed seat 5, a water seal cover open in-place limit part 6, a water seal cover closed in-place limit part 7, a flap valve open in-place limit part 8, and a flap valve closed in-place limit part 9. The coke oven riser pipe 1 is provided with a water seal cover 10 and a flap valve 11.

[0027] The water seal cover swing arm 2 is fixedly connected to the water seal cover 10. One end of the first driving device is hinged to the first fixed seat 4, and the other end is hinged to the water seal cover swing arm 2. When the water seal cover 10 is opened to the maximum position, the water seal cover swing arm 2 contacts the water seal cover open position limiting member 6. When the water seal cover 10 is closed, the water seal cover swing arm 2 contacts the water seal cover closed position limiting member 7. The flap valve swing arm 3 is fixedly connected to the flap valve 11. One end of the second driving device is hinged to the second fixed seat 5, and the other end is hinged to the flap valve swing arm 3. When the flap valve 11 is opened to the maximum position, the flap valve swing arm 3 contacts the flap valve open position limiting member 8. When the flap valve 11 is closed, the flap valve swing arm 3 contacts the flap valve closed position limiting member 9.

[0028] In this embodiment, the first driving device includes an air supply system A20 and a water seal cover pneumatic cylinder 21. The air supply system A20 is connected to the water seal cover pneumatic cylinder 21 through a first air pipeline 22. The second driving device includes an air supply system B23 and a flap valve pneumatic cylinder 24. The air supply system B23 is connected to the flap valve pneumatic cylinder 24 through a second air pipeline 25. Both ends of the water seal cover pneumatic cylinder 21 are respectively hinged to the water seal cover swing arm 2 and the first fixed seat 4. Both ends of the flap valve pneumatic cylinder 24 are respectively hinged to the flap valve swing arm 3 and the second fixed seat 5. The water seal cover pneumatic cylinder 21 and the flap valve pneumatic cylinder 24 are both double-acting cylinders, that is, the air supply system A20 can supply air to the front end and the end of the water seal cover pneumatic cylinder 21 respectively through the first air pipeline 22, and the air supply system B23 can supply air to the front end and the end of the flap valve pneumatic cylinder 24 respectively through the second air pipeline 25, so as to control the expansion and contraction of the water seal cover pneumatic cylinder 21 and the flap valve pneumatic cylinder 24.

[0029] The control system includes a pneumatic system controller 12, a first button 13, a second button 14, a magnetic induction position limiter 15, a magnet 16, a locomotive in-place display lamp 17, a locomotive signal transmitter 18, a locomotive signal converter 19, a first indicator lamp and a second indicator lamp.

[0030] The water seal cover open position limiting member 6, the water seal cover closed position limiting member 7, the flap valve open position limiting member 8, the flap valve closed position limiting member 9, the air supply system A20 and the air supply system B23 are all signal-connected to the pneumatic system controller 12.

[0031] The first button 13 is used to send a control instruction of "closing the flap valve 11 and opening the water seal cover 10" to the pneumatic system controller 12, and the second button 14 is used to send a control instruction of "closing the water seal cover 10 and opening the flap valve 11" to the pneumatic system controller 12.

[0032] The locomotive signal transmitter 18 is signal - connected to the first button 13, the second button 14, and the locomotive signal converter 19, and the locomotive signal converter 19 is signal - connected to the pneumatic system controller 12.

[0033] The magnetic induction limiter 15 is arranged on the coal charging car, the magnet 16 is arranged at the working position of the coal charging car, and the magnetic induction limiter 15 is signal - connected to the locomotive in - place display lamp 17.

[0034] The first indicator lamp is arranged on the first button 13, and the second indicator lamp is arranged on the second button 14. Both the first indicator lamp and the second indicator lamp are signal - connected to the pneumatic system controller 12.

[0035] The working process of the automatic opening and closing device for the water - seal cover of the coke oven riser pipe in this embodiment is as follows:

[0036] 1. When the coke in the carbonization chamber reaches the end of the coking period and it is necessary to close the flap valve 11 and open the water - seal cover 10:

[0037] When the coal charging car moves to the working position of the coal charging car, when the magnetic induction limiter 15 on the coal charging car senses the magnetic - field signal emitted by the magnet 16, the locomotive in - place display lamp 17 lights up. After the operator observes that the locomotive in - place display lamp 17 is on, press the first button 13. The first button 13 sends the control instruction of "closing the flap valve 11 and opening the water - seal cover 10" to the pneumatic system controller 12 through the locomotive signal transmitter 18 and the locomotive signal converter 19 in sequence.

[0038] The pneumatic system controller 12 controls the air - supply system B23 to supply air to the flap - valve pneumatic cylinder 24. The flap - valve pneumatic cylinder 24 drives the flap - valve swing arm 3 to swing, driving the flap valve 11 to perform the closing action. When the flap - valve swing arm 3 contacts the flap - valve closed - in - place limit part 9, the closing operation of the flap valve 11 is completed. At this time, the flap - valve closed - in - place limit part 9 sends the signal of "the closing operation of the flap valve 11 is completed" to the pneumatic system controller 12.

[0039] After the pneumatic system controller 12 receives this signal, it controls the air - supply system A20 to supply air to the water - seal - cover pneumatic cylinder 21. The water - seal - cover pneumatic cylinder 21 drives the water - seal - cover swing arm 2 to swing, driving the water - seal cover 10 to perform the opening action. When the water - seal - cover swing arm 2 contacts the water - seal - cover opened - in - place limit part 6, the opening operation of the water - seal cover 10 is completed. At this time, the water - seal - cover opened - in - place limit part 6 sends the signal of "the opening operation of the water - seal cover 10 is completed" to the pneumatic system controller 12.

[0040] After the start - up system controller 12 receives this signal, it controls the first indicator lamp on the first button 13 to light up, prompting the operator that "the flap valve 11 has been closed and the water - seal cover 10 has been opened".

[0041] 2. After the coke pushing is completed, when closing the water seal cover 10 and opening the flap valve 11:

[0042] When the coal charging car moves to the working position of the coal charging car, when the magnetic induction limit switch 15 on the coal charging car senses the magnetic field signal emitted by the magnet 16, the locomotive in-place display light 17 lights up. After the operator observes that the locomotive in-place display light 17 is on, press the second button 14. The second button 14 sends the control instruction of "closing the water seal cover 10 and opening the flap valve 11" to the pneumatic system controller 12 through the locomotive signal transmitter 18 and the locomotive signal converter 19 in sequence.

[0043] The pneumatic system controller 12 controls the air supply system A20 to supply air to the water seal cover pneumatic cylinder 21. The water seal cover pneumatic cylinder 21 drives the water seal cover swing arm 2 to swing, driving the water seal cover 10 to perform the closing action. When the water seal cover swing arm 2 contacts the water seal cover closed-in-place limit part 7, the closing operation of the water seal cover 10 is completed. At this time, the water seal cover closed-in-place limit part 7 sends the signal of "the closing operation of the water seal cover 10 is completed" to the pneumatic system controller 12.

[0044] After receiving this signal, the pneumatic system controller 12 controls the air supply system B23 to supply air to the flap valve pneumatic cylinder 24. The flap valve pneumatic cylinder 24 drives the flap valve swing arm 3 to swing, driving the flap valve 11 to perform the opening action. When the flap valve swing arm 3 contacts the flap valve opened-in-place limit part 8, the opening operation of the flap valve 11 is completed. At this time, the flap valve opened-in-place limit part 8 sends the signal of "the opening operation of the flap valve 11 is completed" to the pneumatic system controller 12.

[0045] After receiving this signal, the start system controller 12 controls the second indicator light on the second button 14 to light up, prompting the operator that "the water seal cover 10 has been closed and the flap valve 11 has been opened".

Claims

1. An automatic opening and closing device for a water seal cover of a coke oven riser, comprising a coke oven riser (1), wherein the coke oven riser (1) is provided with a water seal cover (10) and a flap valve (11), characterized in that: It also includes a control system, a first drive device, a second drive device, a water seal cover swing arm (2), a flap valve swing arm (3), a first fixed seat (4), a second fixed seat (5), a water seal cover open position limiter (6), a water seal cover closed position limiter (7), a flap valve open position limiter (8) and a flap valve closed position limiter (9), The water seal cover swing arm (2) is fixedly connected to the water seal cover (10); one end of the first driving device is hinged to the first fixed seat (4), and the other end is hinged to the water seal cover swing arm (2); when the water seal cover (10) is opened to the maximum position, the water seal cover swing arm (2) contacts the water seal cover opening position limiter (6); when the water seal cover (10) is closed, the water seal cover swing arm (2) contacts the water seal cover closing position limiter (7); The flap valve swing arm (3) is fixedly connected to the flap valve (11); one end of the second driving device is hinged to the second fixed seat (5), and the other end is hinged to the flap valve swing arm (3); when the flap valve (11) is opened to the maximum position, the flap valve swing arm (3) contacts the flap valve open position limiter (8); when the flap valve (11) is closed, the flap valve swing arm (3) contacts the flap valve closed position limiter (9); The control system comprises a first button (13), a second button (14) and a pneumatic system controller (12), wherein the first button (13) is used to send a control instruction of "close the flap valve (11) and open the water seal cover (10)" to the pneumatic system controller (12), and the second button (14) is used to send a control instruction of "close the water seal cover (10) and open the flap valve (11)" to the pneumatic system controller (12); The first drive device, the second drive device, the water seal cover open position limiter (6), the water seal cover closed position limiter (7), the flap valve open position limiter (8), the flap valve closed position limiter (9), the first button (13) and the second button (14) are all connected to the pneumatic system controller (12) by signal.

2. The automatic opening and closing device for the water seal cover of the coke oven riser according to claim 1 is characterized in that: It also includes a coal-feeding car and a coal-feeding car working position. The control system also includes a magnetic induction limiter (15), a magnet (16) and a locomotive arrival display light (17). The magnetic induction limiter (15) is arranged on the coal-feeding car, the magnet (16) is arranged on the coal-feeding car working position, and the magnetic induction limiter (15) is connected to the locomotive arrival display light (17) by signal.

3. The automatic opening and closing device for the water seal cover of the coke oven riser according to claim 1 is characterized in that: The first driving device comprises an air supply system A (20) and a water sealing cover pneumatic cylinder (21), wherein the air supply system A (20) is connected to the water sealing cover pneumatic cylinder (21) via a first air supply pipeline (22), the air supply system A (20) is connected to a pneumatic system controller (12) for signal transmission, and one end of the water sealing cover pneumatic cylinder (21) is hinged to the first fixing seat (4), and the other end is hinged to the water sealing cover swing arm (2); The second driving device comprises an air supply system B (23) and a flap valve pneumatic cylinder (24), wherein the air supply system B (23) is connected to the flap valve pneumatic cylinder (24) via a second air supply pipeline (25), the air supply system B (23) is connected to a pneumatic system controller (12) for signal transmission, and one end of the flap valve pneumatic cylinder (24) is hinged to the second fixed seat (5), and the other end is hinged to the flap valve swing arm (3); The water sealing cover pneumatic cylinder (21) and the flap valve pneumatic cylinder (24) are both double-acting cylinders.

4. The automatic opening and closing device for the water seal cover of the coke oven riser according to claim 1 is characterized in that: The control system further comprises a locomotive signal transmitter (18) and a locomotive signal converter (19), wherein the locomotive signal transmitter (18) is signal-connected to the first button (13), the second button (14) and the locomotive signal converter (19), and the locomotive signal converter (19) is signal-connected to the pneumatic system controller (12).

5. The automatic opening and closing device for the water seal cover of the coke oven riser according to claim 1 is characterized in that: The control system further comprises a first indicator light and a second indicator light, wherein the first indicator light and the second indicator light are both connected to the pneumatic system controller (12) by signal.

6. The automatic opening and closing device for the water seal cover of the coke oven riser according to claim 5 is characterized in that: The first indicator light is arranged on the first button (13), and the second indicator light is arranged on the second button (14).

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