Linkage mechanism for opening ascension pipe cover and closing water-sealed valve of coke oven

Abstract

The utility model provides a linkage mechanism for opening an ascension pipe cover and closing a water-sealed valve of a coke oven, which comprises an ascension pipe cover opening device, a water-sealed valve closing device, a water-sealed valve device and an ascension pipe cover device, the ascension pipe cover opening device and the water-sealed valve closing device are arranged on a coal charging car for reciprocating operation at the top of the coke oven, are positioned on the left side of an ascension pipe and are driven by a driving device, and the ascension pipe cover opening device and the water-sealed valve closing device are arranged on the left side of the ascension pipe. The water seal valve device is located on the right side of the ascending pipe and can be in mechanical linkage with the ascending pipe cover, and the ascending pipe cover device is located on the upper portion of the ascending pipe and is in mechanical linkage with the water seal valve device to achieve opening and closing of the ascending pipe cover. By designing the linkage mechanism for opening the ascension pipe cover and closing the water-sealed valve, the linkage automatic operation of opening the water-sealed valve and closing the ascension pipe cover is realized, the operation is simplified, the labor intensity of workers is greatly reduced, and the safety and the reliability of coke oven production are favorably improved.

Description

Technical Field

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

[0002] Coking is a high-temperature dry distillation process, and a large amount of soot will be generated during the process of converting coal into coke. The soot contains harmful components such as benzo[a]pyrene, which will seriously pollute the environment and affect the health of operating workers. 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 action of high-pressure ammonia water injection, 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.

[0003] The riser system is the key to realizing this process, including opening and closing the riser cover, opening and closing the water seal valve, and switching between high and low pressure ammonia water. Among them, the precise linkage of the water seal valve and the riser cover is of great significance for the soot control at the top of the coke oven. The linkage requirement is that at the end of the coking period of the coke oven, it is necessary to open the riser cover while closing the water seal valve to prepare for the coke pushing operation; after the coke pushing is completed, it is necessary to open the water seal valve while closing the riser cover and wait for the coal charging operation. Currently, the operation of the riser at the top of the oven is still generally carried out manually. Since the risers of three carbonization chambers need to be operated simultaneously for each operation, the labor intensity of workers is high, and precise time control cannot be achieved. Summary of the Invention

[0004] In view of the problem that it is difficult to precisely control the switching time point manually during the operation of the coke oven riser system, a linkage mechanism for opening the riser cover and closing the water seal valve of the coke oven is provided. The utility model develops and designs a linkage type riser cover opening and closing system, 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.

[0005] The technical means adopted by the utility model are as follows:

[0006] A linkage mechanism for opening a riser cover and closing a water seal valve of a coke oven includes: an opening riser cover, a closing water seal valve device, a water seal valve device, and a riser cover device;

[0007] The opening riser cover and the closing water seal valve device are installed on the coal charging vehicle that reciprocates on the top of the oven, on the left side of the riser, and are driven by a driving part;

[0008] The water seal valve device is located on the right side of the riser and can be mechanically linked with the riser cover;

[0009] The riser cover device is located at the upper part of the riser and realizes the opening and closing of the riser cover through mechanical linkage with the water seal valve device.

[0010] Further, the device for opening the riser cover and closing the water seal valve device includes a driving part, a first swing rod, a second swing rod, a suspension bracket and a spring. The driving part is suspended under the charging car platform through the suspension bracket. One end of the first swing rod is rigidly connected to the driving part by a key, and one end is hinged to the second swing rod by a pin shaft. One end of the spring is connected to the first swing rod, and one end is connected to the second swing rod. The driving part is a motor, a gear-rack swing hydraulic cylinder or a cylinder.

[0011] Further, 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 third swing rod. The water seal valve cover is hinged to the water seal valve body through a shaft. Both ends of the first connecting rod are respectively connected to the water seal valve cover and the third swing rod. The third swing rod is L-shaped, and the middle end is hinged to the connecting seat.

[0012] Further, the riser cover device includes a riser cover, a fourth swing rod and a second connecting rod. The riser cover is rigidly connected to the fourth swing rod by a key. The riser cover is hinged to the riser seat through a shaft. The second connecting rod has a long groove, and the third swing rod moves in the long groove.

[0013] Due to the adoption of the above technical solutions, compared with the prior art, the utility model has the following advantages:

[0014] 1. A linkage mechanism for opening the riser cover and closing the water seal valve of a coke oven provided by the utility model realizes mechanical linkage between the water seal valve cover and the riser cover, accurately controls multiple carbonization chambers, and improves the reliability and safety of the coke oven riser system.

[0015] 2. A linkage mechanism for opening the riser cover and closing the water seal valve of a coke oven provided by the utility model has a simple structure, few drives, can realize mechanical automation operation, and is easy to maintain.

[0016] 3. A linkage mechanism for opening the riser cover and closing the water seal valve of a coke oven provided by the utility model solves the difficulty of enterprise employment and greatly reduces the labor intensity of workers.

[0017] 4. A linkage mechanism for opening the riser cover and closing the water seal valve of a coke oven provided by the utility model improves the automation and environmental protection of coke oven machinery.

[0018] 5. A linkage mechanism for opening the riser cover and closing the water seal valve of a coke oven provided by the utility model places the interlocking opening and closing structure on the vehicle. One set of equipment can operate the risers of multiple carbonization chambers, effectively saving the construction cost of the coke oven.

[0019] Based on the above reasons, the utility model can be widely promoted in the field of metallurgical coking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention 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 invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of a linkage mechanism for opening the riser cover and closing the water seal valve of a coke oven according to the present invention;

[0022] Figure 2 It is a schematic view in the direction A of a linkage mechanism for opening the riser cover and closing the water seal valve of a coke oven according to the present invention;

[0023] Figure 3 It is a schematic view in the direction B of a linkage mechanism for opening the riser cover and closing the water seal valve of a coke oven according to the present invention.

[0024] In the figure: 1. Driving device; 2. First swing rod; 3. Second swing rod; 4. Hanger; 5. Spring; 6. Steel structure platform; 7. Water seal valve seat; 8. Water seal valve body; 9. Water seal valve cover; 10. First connecting rod; 11. Connecting seat; 12. Third swing rod; 13. Riser cover; 14. Fourth swing rod; 15. Second connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine the embodiments to detail the present invention.

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments 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 specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values 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, such technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value 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.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are generally based on the orientation or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Without contrary explanations, these orientation words do not indicate and imply that the device or element 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 words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0030] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure for the device. For example, if the device in the attached drawing is inverted, the device described as "above or over other devices or structures" will then be positioned "below 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 are made for the spatial relative descriptions used here.

[0031] In addition, it should be noted that the use of terms such as "first", "second" etc. to define components is merely for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present utility model.

[0032] As Figures 1 to 3 shown, the present utility model provides a linkage mechanism for opening the riser cover and closing the water seal valve of a coke oven, comprising: a riser cover opening device, a water seal valve closing device, a water seal valve device, and a riser cover device;

[0033] The riser cover opening device and the water seal valve closing device are installed on the coal charging vehicle that reciprocates on the coke oven top, located on the left side of the riser, and are driven by a driving device;

[0034] The water seal valve device is located on the right side of the riser and can achieve mechanical linkage with the riser cover;

[0035] The riser cover device is located above the riser and realizes the opening and closing of the riser cover through mechanical linkage with the water seal valve device.

[0036] Further, in the present utility model, it is set that a person stands on the machine side of the coke oven facing the coke oven, and the oven numbers of the coke oven are successively 1, 3, 5, 7... M from right to left. The carbonization chamber waiting for coal charging operation is the Nth number, the carbonization chamber that performed the previous coal charging operation is the (N - 2)th number, and the carbonization chamber that will perform the next coal charging process and also perform the coke pushing process is the (N + 2)th number.

[0037] Further, in the initial state, the water seal valve cover of the (N + 2)th carbonization chamber is in the open state, and the riser cover is in the closed state.

[0038] Furthermore, in the working state, the driving part 1 drives the first swing rod 2 to rotate. After rotating to the bottom of the long slot, it pulls the second connecting rod 15 to continue descending until the water seal valve cover 9 is closed and the riser pipe cover 13 is opened. The signal of the opened riser pipe cover is sent to the coke pusher to perform the coke pushing operation. The driving part 1 resets to the initial position.

[0039] Furthermore, the device for opening the riser pipe cover and closing the water seal valve includes a driving part 1, a first swing rod 2, a second swing rod 3, a hanger 4 and a spring 5. The driving part 1 is hung below the coal charging car platform 6 through the hanger 4. One end of the first swing rod 2 is rigidly connected to the driving part 1 by a key, and one end is hinged to the second swing rod 3 by a pin shaft. One end of the spring 5 is connected to the first swing rod 2, and one end is connected to the second swing rod 3. The driving part 1 is a motor, a gear-rack oscillating hydraulic cylinder or a cylinder.

[0040] Furthermore, the water seal valve device includes a water seal valve body 8, a water seal valve cover 9, a first connecting rod 10, a connecting seat 11 and a third swing rod 12. The water seal valve cover 9 is hinged to the water seal valve body 8 through a shaft. Both ends of the first connecting rod 10 are respectively connected to the water seal valve cover 9 and the third swing rod 12. The third swing rod 12 is L-shaped, and the middle end is hinged to the connecting seat 11.

[0041] Furthermore, the riser pipe cover device includes a riser pipe cover 13, a fourth swing rod 14 and a second connecting rod 15. The riser pipe cover 13 is rigidly connected to the fourth swing rod 14 by a key. The riser pipe cover 13 is hinged to the riser pipe seat 7 through a shaft. There is a long slot on the second connecting rod 15, and the third swing rod 12 moves in the long slot.

[0042] 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. However, such 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 linkage mechanism for opening a coke oven riser cover and closing a water seal valve, characterized in that: include: Open the riser cover, close the water seal valve device, water seal valve device, and riser cover device; The device for opening the riser cover and closing the water seal valve is installed on the coal loading car that reciprocates on the furnace top, located on the left side of the riser, and driven by the driving device; The device for opening the riser cover and closing the water seal valve comprises a driving part, a swing rod 1, a swing rod 2, a hanger and a spring. The driving part is hung below the coal loading car platform through the hanger. One end of the swing rod 1 is rigidly connected to the driving part through a key, and one end is hinged to the swing rod 2 through a pin. One end of the spring is connected to the swing rod 1, and the other end is connected to the swing rod 2. The driving part is a motor, a gear rack swing hydraulic cylinder or a cylinder. The water seal valve device is located on the right side of the riser and can be mechanically linked with the riser cover; The riser cover device is located at the upper part of the riser, and is opened and closed by mechanically linking with the water seal valve device.

2. The linkage mechanism for opening the coke oven riser cover and closing the water seal valve 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 rod three. The water seal valve cover is hinged to the water seal valve body through an axis. The two ends of the connecting rod one are respectively connected to the water seal valve cover and the rocker rod three. The rocker rod three is L-shaped, and the middle end is hinged to the connecting seat.

3. The linkage mechanism for opening the coke oven riser cover and closing the water seal valve according to claim 2, characterized in that: The rising tube cover device includes a rising tube cover, a rocker rod four and a connecting rod two. The rising tube cover and the rocker rod four are rigidly connected by a key. The rising tube cover is hinged to the rising tube seat by an axis. The connecting rod two is provided with a long groove, and the rocker rod three moves in the long groove.

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