Coke oven riser cover opening and closing mechanism

Abstract

The utility model provides an opening and closing mechanism for an ascending pipe cover of a coke oven. The opening and closing mechanism comprises a cover closing device, a water sealing valve opening device, an ascending pipe cover opening device, a water sealing valve closing device, a water sealing valve device and an ascending pipe cover device, the cover closing device is installed above a coal charging car, is driven by a driving cylinder and is used for closing a coke oven cover, the water sealing valve opening device, the ascending pipe cover opening device and the water sealing valve closing device are all installed on the coal charging car which performs reciprocating operation on the top of the furnace, the cover closing device and the water sealing valve opening device are arranged on the left side of an Nth ascending pipe, and the cover closing device and the water sealing valve closing device are arranged on the right side of the Nth ascending pipe. The ascending pipe cover opening and water seal valve closing device is arranged on the left side of the N + 2 ascending pipe. According to the linkage type ascending cover opening and closing system, mechanical automatic operation can be achieved, linkage of the water-sealed valve and the ascending pipe cover is achieved, the safety and reliability of coke oven production are improved, and the labor intensity of workers is greatly relieved.

Description

Technical Field

[0001] The utility model relates to the field of metallurgical coking, and particularly to an opening and closing mechanism for a coke oven riser cover. Background Art

[0002] Currently, the most widely used coal charging dust removal process is to set high-pressure ammonia water injection nozzles at the bridge pipe. By using the high-pressure ammonia water injection effect, a negative pressure of 1000 - 1500 Pa is generated at the bridge pipe to guide the raw gas generated during the coal charging process to the gas collecting pipe. However, currently, the operation of the riser system of medium and small coke oven projects still generally relies on manual labor. Since three carbonization chambers need to be operated simultaneously each time, on the one hand, it is difficult to precisely control the switching time point by manual operation, which will lead to large instantaneous fluctuations in the pressure of the coke oven gas collecting pipe and excessive oxygen content in the flue gas, etc., and further lead to risks such as coke oven smoking and furnace body leakage; on the other hand, if simultaneous operation is achieved, a large number of personnel are required and the labor intensity of workers is high. Summary of the Invention

[0003] In view of the problem that it is difficult to precisely control the switching time point by manual operation during the operation of the coke oven riser system, which will lead to large instantaneous fluctuations in the pressure of the coke oven gas collecting pipe and excessive oxygen content in the flue gas, an opening and closing mechanism for a coke oven riser cover is provided. The utility model develops and designs a linkage type opening and closing system for the riser cover, which can be automatically operated mechanically, realizes the linkage of the water seal valve and the riser cover, is beneficial to improving the safety and reliability of coke oven production, and greatly reduces the labor intensity of workers.

[0004] The technical means adopted by the utility model are as follows:

[0005] An opening and closing mechanism for a coke oven riser cover, comprising: a cover closing device, a water seal valve opening device, a riser cover opening device, a water seal valve closing device, a water seal valve device, and a riser cover device;

[0006] The cover closing device is installed above the coal charging car and is driven by a driving cylinder for closing the coke oven cover;

[0007] The water seal valve opening device, the riser cover opening device, and the water seal valve closing device are all installed on the coal charging car that reciprocates on the furnace top;

[0008] Wherein the cover closing device and the water seal valve opening device are arranged on the left side of the Nth riser, and the riser cover opening device and the water seal valve closing device are arranged on the left side of the (N + 2)th riser.

[0009] Furthermore, the cover closing device includes a support, a driving cylinder, a buffer, a fork head and a first swing rod. The support is installed above the platform of the coal charging car. The driving cylinder is hinged to the support by a shaft. One end of the buffer is connected to the driving cylinder, and the other end is connected to the fork head. The first swing rod is hinged to the support by a shaft. The fork head is connected to the first swing rod by a pin shaft. The driving cylinder is a hydraulic cylinder, a pneumatic cylinder or an electro-hydraulic push rod.

[0010] Furthermore, the open water seal valve device includes a first driving part, a second swing rod, a third swing rod, a first hanger and a first spring. The first driving part is hung below the platform of the coal charging car through the first hanger. One end of the second swing rod is rigidly connected to the first driving part by a key, and one end is hinged to the third swing rod by a pin shaft. One end of the first spring is connected to the second swing rod, and the other end is connected to the third swing rod. The first driving part is a motor, a rack and pinion swing hydraulic cylinder or a cylinder.

[0011] Furthermore, the open riser cover and the closed water seal valve device include a second driving part, a fourth swing rod, a fifth swing rod, a second hanger and a second spring. The second driving part is hung below the platform of the coal charging car through the second hanger. One end of the fourth swing rod is rigidly connected to the second driving part by a key, and one end is hinged to the fifth swing rod by a pin shaft. One end of the second spring is connected to the fourth swing rod, and the other end is connected to the fifth swing rod. The second driving part is a motor, a rack and pinion swing hydraulic cylinder or a cylinder.

[0012] Furthermore, the water seal valve device includes a water seal valve body, a water seal valve cover, a first connecting rod, a connecting seat and a sixth swing rod. The water seal valve cover is hinged to the water seal valve body by a shaft. Both ends of the first connecting rod are respectively connected to the water seal valve cover and the sixth swing rod. The sixth swing rod is L-shaped, and the middle end is hinged to the connecting seat.

[0013] Furthermore, the riser cover device includes a riser cover, a seventh swing rod and a second connecting rod. The riser cover is rigidly connected to the seventh swing rod by a key. The riser cover is hinged to the riser seat by a shaft.

[0014] Furthermore, there is a long slot on the second connecting rod, and the sixth swing rod moves in the slot. When the Nth carbonization chamber performs the actions of opening the riser cover and closing the water seal valve, the sixth swing rod rotates counterclockwise to the bottom of the long slot, and then pulls the second connecting rod to move downward until the water seal valve cover is completely closed and the riser cover is opened.

[0015] Due to the adoption of the above technical solutions, compared with the prior art, the present utility model has the following advantages:

[0016] 1. A coke oven riser cover opening and closing mechanism provided by the present utility model enables mechanical linkage between the water seal valve cover and the riser cover, precisely controls multiple carbonization chambers, and improves the reliability and safety of the coke oven riser system.

[0017] 2. A coke oven riser cover opening and closing mechanism provided by the present utility model has a simple structure, requires few drives, can achieve mechanical automation operation, and is easy to maintain.

[0018] 3. A coke oven riser cover opening and closing mechanism provided by the present utility model solves the problem of difficult employment in enterprises and greatly reduces the labor intensity of workers.

[0019] 4. A coke oven riser cover opening and closing mechanism provided by the present utility model improves the automation and environmental protection of coke oven machinery.

[0020] Based on the above reasons, the present utility model can be widely promoted in the metallurgical coking field. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the riser cover and the water seal valve opening mechanism of a coke oven riser cover opening and closing mechanism described in the present utility model;

[0023] Figure 2 It is a schematic diagram of the water seal valve closing and the riser cover opening mechanism of a coke oven riser cover opening and closing mechanism described in the present utility model;

[0024] Figure 3 It is a view from direction A of a coke oven riser cover opening and closing mechanism described in the present utility model;

[0025] Figure 4 It is a view from direction B of a coke oven riser cover opening and closing mechanism described in the present utility model;

[0026] Figure 5 It is a view from direction C of a coke oven riser cover opening and closing mechanism described in the present utility model.

[0027] In the figure: 1. Support; 2. First driving cylinder; 3. Buffer; 4. Fork head; 5. First swing rod; 6. Steel structure platform; 7. Water seal valve seat; 8. First driving part; 9. Second swing rod; 10. Third swing rod; 11. First hanger; 12. First spring; 13. Second driving part; 14. Fourth swing rod; 15. Fifth swing rod; 16. Second hanger; 17. Second spring; 18. Water seal valve body; 19. Water seal valve cover; 20. First connecting rod; 21. Connecting seat; 22. Sixth swing rod; 23. Uptake header cover; 24. Seventh swing rod; 25. Second connecting rod. Specific implementation mode

[0028] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model. The description of at least one exemplary embodiment below is actually only illustrative and in no way restrictive of the present utility model and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0030] It should be noted that the terms used herein are only for describing specific implementation modes and are not intended to limit the exemplary implementation modes of the present utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the described features, steps, operations, devices, components and / or their combinations.

[0031] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be clear that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc., are usually based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description. Without contrary statements, these orientation terms do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the protection scope of the present utility model. The orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0033] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above-mentioned", etc., can be used here to describe the spatial positional relationships of a device or feature shown in the drawings with other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0034] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without additional statements, the above words have no special meanings. Therefore, they should not be construed as limiting the protection scope of the present utility model.

[0035] Such asFigures 1 to 5 As shown in the figure, the utility model provides a coke oven riser cover opening and closing mechanism, including: a cover closing device, a water seal valve opening device, a riser cover opening device, a water seal valve closing device, a water seal valve device, and a riser cover device;

[0036] The cover closing device is installed above the coal charging car and is driven by a driving cylinder 2 for closing the coke oven cover;

[0037] The water seal valve opening device, the riser cover opening device, and the water seal valve closing device are all installed on the coal charging car that reciprocates on the furnace top;

[0038] Among them, the cover closing device and the water seal valve opening device are arranged on the left side of the Nth riser, and the riser cover opening device and the water seal valve closing device are arranged on the left side of the (N + 2)th riser.

[0039] Furthermore, in the utility model, it is set that a person stands on the coke oven machine side facing the coke oven, and the oven numbers of the coke oven are 1, 3, 5, 7... M from right to left in sequence. The carbonization chamber waiting for coal charging operation is the Nth, the carbonization chamber that performed the previous coal charging operation is the (N - 2)th, and the carbonization chamber that will perform the next coal charging process and the coke pushing process is the (N + 2)th.

[0040] Furthermore, the cover closing device includes a support 1, a driving cylinder 2, a buffer 3, a fork head 4, and a first swing rod 5. Among them, the support 1 is installed above the platform 6 of the coal charging car, the driving cylinder 2 is hinged to the support 1 through a shaft, one end of the buffer 3 is connected to the driving cylinder 2, the other end is connected to the fork head 4, the first swing rod 5 is hinged to the support 1 through a shaft, the fork head 4 is connected to the first swing rod 5 through a pin shaft, and the driving cylinder is a hydraulic cylinder, a pneumatic cylinder, or an electro-hydraulic push rod.

[0041] Furthermore, the water seal valve opening device includes a first driving part 8, a second swing rod 9, a third swing rod 10, a first hanger 11, and a first spring 12. Among them, the first driving part 8 is hung below the platform 6 of the coal charging car through the first hanger 11, one end of the second swing rod 9 is rigidly connected to the first driving part 8 through a key, one end is hinged to the third swing rod 10 through a pin shaft, one end of the first spring 12 is connected to the second swing rod 9, and the other end is connected to the third swing rod 10. The first driving part 8 is a motor, a gear-rack swing hydraulic cylinder, or a cylinder.

[0042] Further, the opening of the riser cover and the closing of the water seal valve device include a second driving part 13, a fourth swing rod 14, a fifth swing rod 15, a second hanger 16 and a second spring 17. The second driving part 13 is suspended below the coal charging car platform 6 through the second hanger 16. One end of the fourth swing rod 14 is rigidly connected to the second driving part 13 by a key, and one end is hinged to the fifth swing rod 15 by a pin shaft. One end of the second spring 17 is connected to the fourth swing rod 14, and one end is connected to the fifth swing rod 15. The second driving part 13 is a motor, a rack and pinion swing hydraulic cylinder or a cylinder.

[0043] Further, the water seal valve device includes a water seal valve body 18, a water seal valve cover 19, a first connecting rod 20, a connecting seat 21 and a sixth swing rod 22. The water seal valve cover 19 is hinged to the water seal valve body 18 through a shaft. Both ends of the first connecting rod 20 are respectively connected to the water seal valve cover 19 and the sixth swing rod 22. The sixth swing rod 22 is L-shaped, and the middle end is hinged to the connecting seat 21.

[0044] Further, the riser cover device includes a riser cover 23, a seventh swing rod 24 and a second connecting rod 25. The riser cover 23 is rigidly connected to the seventh swing rod 24 by a key. The riser cover 23 is hinged to the riser seat 7 through a shaft.

[0045] Further, there is a long groove on the second connecting rod 25, and the sixth swing rod 22 moves in the groove. When the Nth coke oven chamber performs the actions of opening the riser cover and closing the water seal valve, the sixth swing rod 22 rotates counterclockwise to the bottom of the long groove, and then pulls the second connecting rod 25 to move downward until the water seal valve cover 19 is completely closed and the riser cover 23 is opened.

[0046] Further, in the initial state, the water seal valve cover of the Nth coke oven chamber is in the closed state, and the riser cover is in the open state; the water seal valve cover of the N + 2th coke oven chamber is in the open state, and the riser cover is in the closed state.

[0047] Further, in the working state, the coal charging car travels to the Nth coke oven chamber. The second driving part 13 drives the fourth swing rod 14 to rotate. The sixth swing rod 22 rotates counterclockwise to the bottom of the long groove, pulls the second connecting rod 25 to move downward, closes the water seal valve cover of the N + 2th coke oven chamber, and opens the riser cover of the N + 2th coke oven chamber; the opening signal of the riser cover of the N + 2th coke oven chamber is sent to the pusher to perform the coke pushing operation; the first driving part 8 acts to drive the second swing rod 9 to rotate, and the water seal valve of the Nth coke oven chamber is opened; the driving cylinder 2 acts to drive the first swing rod 5 to rotate until the riser cover of the Nth coke oven chamber is closed; each driving part retracts to the initial position, and the riser operating system completes an action cycle.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coke oven riser cover opening and closing mechanism, characterized in that: include: Cover closing device, water seal valve opening device, rising pipe cover opening, water seal valve closing device, water seal valve device, rising pipe cover device; The cover closing device comprises a support, a drive cylinder, a buffer, a fork and a swing rod 1, wherein the support is installed above the coal loading car platform, the drive cylinder and the support are hinged by an axis, one end of the buffer is connected to the drive cylinder, and the other end is connected to the fork, the swing rod 1 is hinged to the support by an axis, the fork is connected to the swing rod 1 by a pin, and the drive cylinder is a hydraulic cylinder, a pneumatic cylinder or an electro-hydraulic push rod; The cover closing device is installed above the coal loading car and is driven by a driving cylinder to close the coke oven cover; The water seal valve opening device, the rising pipe cover opening device and the water seal valve closing device are all installed on the coal loading car that reciprocates on the furnace top; The cover closing device and the water seal valve opening device are arranged on the left side of the N riser, and the riser cover opening and water seal valve closing device are arranged on the left side of the N+2 riser.

2. A coke oven riser cover opening and closing mechanism according to claim 1, characterized in that: The water seal valve device includes a driving part 1, a rocker arm 2, a rocker arm 3, a hanger 1 and a spring 1, wherein the driving part 1 is hung under the coal loading car platform through the hanger 1, one end of the rocker arm 2 is rigidly connected to the driving part 1 through a key, and the other end is hinged to the rocker arm 3 through a pin shaft, one end of the spring 1 is connected to the rocker arm 2, and the other end is connected to the rocker arm 3, and the driving part 1 is an electric motor, a gear rack swing hydraulic cylinder or a cylinder.

3. A coke oven riser cover opening and closing mechanism according to claim 1, characterized in that: The opening and closing riser cover and the water seal valve closing device include a driving part 2, a rocker arm 4, a rocker arm 5, a hanger 2 and a spring 2, wherein the driving part 2 is suspended under the coal loading car platform through the hanger 2, one end of the rocker arm 4 is rigidly connected to the driving part 2 through a key, and the other end is hinged to the rocker arm 5 through a pin shaft, one end of the spring 2 is connected to the rocker arm 4, and the other end is connected to the rocker arm 5, and the driving part 2 is an electric motor, a gear rack swing hydraulic cylinder or a cylinder.

4. A coke oven riser cover opening and closing mechanism according to claim 1, characterized in that: The water seal valve device includes a water seal valve body, a water seal valve cover, a connecting rod one, a connecting seat and a rocker arm six, wherein the water seal valve cover is hinged to the water seal valve body through an axis, and the two ends of the connecting rod one are respectively connected to the water seal valve cover and the rocker arm six, and the rocker arm six is ​​L-shaped, and the middle end is hinged to the connecting seat.

5. A coke oven riser cover opening and closing mechanism according to claim 4, characterized in that: The rising tube cover device comprises a rising tube cover, a rocker arm 7 and a connecting rod 2, wherein the rising tube cover is rigidly connected to the rocker arm 7 via a key, and the rising tube cover is hinged to the rising tube seat 7 via an axis.

6. A coke oven riser cover opening and closing mechanism according to claim 5, characterized in that: There is a long groove on the connecting rod 2, and the rocker arm 6 moves in the groove. When the No. N carbonization chamber performs the action of opening the riser pipe cover and closing the water seal valve, the rocker arm 6 rotates counterclockwise to the bottom of the long groove, and then pulls the connecting rod 2 downward until the water seal valve cover is completely closed and the riser pipe cover is opened.

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