Automatic ignition dust removal device for ascension pipe of coke oven

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses an automatic ignition dust removal device for a coke oven ascension pipe. The automatic ignition dust removal device for the ascension pipe of the coke oven comprises a telescopic dust collection cover, an igniter, a stand column, an exhaust port, dust removal equipment, a cantilever, a rotary driver and a second exhaust channel. Automatic ignition and waste gas collection in the stove airing process are achieved, the manual operation burden is greatly relieved, and the production efficiency and safety are improved; the telescopic dust collecting cover can be tightly attached to the ascending pipe, waste gas containing harmful substances can be collected in time in the stove airing process, the waste gas is discharged after being treated through dust removal equipment, and pollution of unorganized waste gas to the atmosphere is remarkably reduced; and the igniter is directly arranged on the telescopic dust collecting cover.

Description

Technical Field

[0001] The present application relates to the technical field of waste gas treatment, for example, to an automatic ignition and dust removal device for a coke oven riser. Background Art

[0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

[0003] During coke oven production, the riser cover must be opened to air-dry the oven at the end of coking. Uncontrolled exhaust gases, such as residual volatile components from the coke and residual raw gas in the carbonization chamber, are inevitably released into the atmosphere. The diffusion point of these gases varies with the oven number. The main components of these exhaust gases include coal gas, water vapor, tar vapor, crude benzene, ammonia, hydrogen sulfide, cyanide, and dust. Currently, manual ignition is used to reduce atmospheric pollution. However, manual ignition during the opening process is difficult due to factors such as natural wind and low levels of combustible gases. Even after ignition, the exhaust gases rise into the atmosphere due to thermal buoyancy, causing environmental pollution. The riser is located high, typically requiring two workers to operate it. If the riser is not ignited promptly, air will instantly enter the tube, which can then ignite the torch and cause a flash explosion. This "flash explosion" phenomenon can lead to leaks and leaks from the furnace body. The residual raw gas is also discharged directly through the chimney, causing environmental pollution. Summary of the Invention

[0004] The present application provides an automatic ignition and dust removal device for a coke oven riser, which realizes automatic ignition and exhaust gas collection during the drying process by integrating automated components such as a telescopic dust hood, an igniter, and a rotary drive, greatly reducing the burden of manual operation and improving production efficiency and safety; the telescopic dust hood can fit tightly against the riser, and timely collect exhaust gas containing harmful substances during the drying process, and then discharge it after treatment through dust removal equipment, significantly reducing the pollution of the atmosphere by unorganized exhaust gas; the igniter is directly arranged on the telescopic dust hood to ensure that the exhaust gas is ignited quickly and stably, solving the problem of manual ignition difficulty caused by the influence of natural wind and low combustible gas content, and effectively preventing the risk of flash explosion caused by non-ignition; through the rotating connection design of the cantilever and the column, and the flexible adjustment of the telescopic dust hood, the device can adapt to coke oven risers at different positions and heights, improving the versatility and flexibility of the equipment.

[0005] Provided is a coke oven ascending pipe automatic ignition and dust removal device, comprising: a telescopic dust collecting hood, an igniter, a column, an exhaust port, a dust removal device, a cantilever, a rotary drive, and a second exhaust channel;

[0006] Telescopic dust hood, which can be extended up and down, can cover or keep away from the coke oven riser;

[0007] An igniter is provided on the telescopic dust collecting hood;

[0008] A column having a first exhaust passage therein;

[0009] An exhaust port is provided on the column and is connected to the first exhaust channel;

[0010] Dust removal equipment, connected to the exhaust port;

[0011] A cantilever, one end of which is rotatably connected to the column and the other end is connected to the telescopic dust collecting hood;

[0012] A slewing drive is assembled with the column and the cantilever to drive the cantilever to rotate relative to the column;

[0013] The second exhaust channel is arranged on the cantilever, one end of which is connected with the first exhaust channel, and the other end of which is connected with the telescopic dust collecting hood.

[0014] Optionally, the telescopic dust collecting hood comprises: a hood body, a lower tube, an upper tube, a lifting device, a guide groove, and a limiting rod;

[0015] a cover body, wherein the igniter is arranged on the cover body;

[0016] The lower pipe is connected to the upper portion of the cover body and is movably connected to the second exhaust channel;

[0017] The upper tube has one end sleeved on the lower tube, slidingly fitted with the lower tube, and one side connected to the cantilever;

[0018] A lifting device is assembled with the upper tube and the lower tube to drive the lower tube to move up and down in the upper tube;

[0019] A guide groove is provided on the upper tube;

[0020] The limiting rod is connected to the lower tube, and is partially arranged in the guide groove and slidably matched with the guide groove.

[0021] Optionally, the lifting device includes: a mounting seat, a first linear telescopic mechanism, a guide wheel, and a flexible member;

[0022] A mounting base connected to the top tube and / or cantilever;

[0023] A first linear telescopic mechanism is provided on the mounting seat;

[0024] A guide wheel is provided at the end of the upper tube;

[0025] One end of the flexible member is connected to the first linear telescopic mechanism, and the other end passes around the guide wheel, penetrates the upper tube, and is connected to the lower tube.

[0026] Optionally, the lifting device further includes: a contact switch, which is disposed on a mounting seat; and when the telescopic dust hood reaches a designated position and covers the coke oven riser, the first linear telescopic mechanism triggers the contact switch and stops telescoping.

[0027] Optionally, the rotary driver includes: a mounting frame, a second linear telescopic mechanism, and a connecting frame;

[0028] A mounting frame connected to the column;

[0029] A second linear telescopic mechanism is rotatably connected to the mounting frame;

[0030] The connecting frame has one end fixedly arranged on the cantilever and the other end rotatably connected to the piston rod of the second linear telescopic mechanism.

[0031] Optionally, the igniter includes: a high-energy igniter, a high-temperature igniter;

[0032] A high-energy igniter is provided on the telescopic dust collecting hood;

[0033] A high-temperature igniter is provided on the telescopic dust collecting hood;

[0034] Optionally, an explosion-proof flexible tube is provided on the outside of the working wires or conduits of the high-energy igniter and the high-temperature igniter.

[0035] Optionally, an inspection window is provided on the cover body.

[0036] Optionally, the cantilever includes: a horizontal pipe section and a vertical pipe section;

[0037] The horizontal pipe section is connected to the telescopic dust collecting hood;

[0038] The upper part of the vertical pipe section is connected to the horizontal pipe section, and the lower part is rotatably connected to the column.

[0039] Optionally, the cantilever is connected to the column via a slewing support bearing.

[0040] The present application provides an automatic ignition and dust removal device for a coke oven riser, which can achieve the following technical effects:

[0041] By integrating automated components such as the telescopic dust hood, igniter, and rotary drive, automatic ignition and exhaust gas collection are achieved during the drying process, greatly reducing the burden of manual operation and improving production efficiency and safety; the telescopic dust hood can fit tightly against the riser, and timely collect exhaust gas containing harmful substances during the drying process, which is then discharged after being treated by dust removal equipment, significantly reducing the pollution of the atmosphere by unorganized exhaust gas; the igniter is directly set on the telescopic dust hood to ensure that the exhaust gas is ignited quickly and stably, solving the problem of manual ignition difficulty caused by natural wind influence and low combustible gas content, and effectively preventing the risk of flash explosion caused by non-ignition; through the rotating connection design of the cantilever and the column, and the flexible adjustment of the telescopic dust hood, the device can adapt to coke oven risers of different positions and heights, improving the versatility and flexibility of the equipment.

[0042] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0044] Figure 1 This is a schematic diagram of the three-dimensional structure of a coke oven riser automatic ignition and dust removal device provided by an embodiment of the present disclosure;

[0045] Figure 2 This is a schematic diagram of the main structure of a coke oven riser automatic ignition and dust removal device provided by an embodiment of the present disclosure;

[0046] Figure 3 yes Figure 2 A-direction cross-sectional structural diagram;

[0047] Figure 4 This is a side structural schematic diagram of a coke oven riser automatic ignition and dust removal device provided by an embodiment of the present disclosure;

[0048] Reference numerals:

[0049] 1. Column; 2. Exhaust port; 3. Cover; 31. Inspection window; 32. High-energy igniter; 33. High-temperature igniter; 34. Explosion-proof flexible pipe; 35. Cable tray;

[0050] 4. Lower tube; 5. Upper tube; 51. Guide groove; 52. Limit rod;

[0051] 6. First linear telescopic mechanism; 61. Contact switch; 62. Flexible member; 63. Guide wheel;

[0052] 7. Cantilever; 71. Horizontal pipe section; 72. Vertical pipe section; 73. Slewing support bearing;

[0053] 8. Second linear telescopic mechanism; 81. Mounting frame; 82. Connecting frame. DETAILED DESCRIPTION

[0054] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0055] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0056] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0057] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0058] Unless otherwise stated, the term "plurality" means two or more.

[0059] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0060] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0061] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0062] Combine Figure 1-4 As shown, the embodiment of the present disclosure provides an automatic ignition and dust removal device for a coke oven riser, comprising: a telescopic dust collecting hood, an igniter, a column 1, an exhaust port 2, a dust removal device, a cantilever 7, a rotary drive, and a second exhaust channel;

[0063] The telescopic dust hood can be extended up and down to cover or keep away from the coke oven riser; it is made of high-strength, high-temperature resistant material. By extending up and down, it ensures that it can tightly cover the coke oven riser mouth during the drying process and effectively collect exhaust gas.

[0064] An igniter is provided on the telescopic dust collecting hood; such as an electric spark igniter or a gas igniter, which is installed on the top or side of the telescopic dust collecting hood to ensure that the exhaust gas is quickly ignited in the confined space.

[0065] Column 1, with a first exhaust duct inside, serves as the main support structure for the device. This duct directs collected exhaust gas to the dust removal equipment. Optionally, it can be a hollow steel pipe. Primarily made of seamless steel pipe, it is hollow inside, through which flue gas is transported. Installed on the second-level platform of the smoke guide vehicle, the bottom flange base is bolted to the vehicle platform. The side exhaust port is connected to the vehicle-mounted dust removal equipment via flanges and bolts.

[0066] The exhaust port 2 is arranged on the column 1 and is connected to the first exhaust channel; the exhaust port 2 is arranged at an appropriate position of the column 1 and is connected to the dust removal equipment through a pipeline. The dust removal equipment can adopt purification equipment such as bag dust collector, electrostatic dust collector in the existing technology to purify the exhaust gas.

[0067] Dust removal equipment, connected to exhaust port 2;

[0068] One end of the cantilever 7 is rotatably connected to the column 1, and the other end is connected to the telescopic dust hood; optionally, one end of the cantilever 7 is connected to the column 1 through a rotating component such as a bearing, and the other end is fixedly connected to the telescopic dust hood; it is mainly made of seamless steel pipe, which is hollow inside, and the smoke is transported from the inside of the pipe.

[0069] The rotary drive is assembled with the column 1 and the cantilever 7 to drive the cantilever 7 to rotate relative to the column 1; optionally, the rotary drive is installed on the column 1 to drive the cantilever 7 to rotate around the column 1 by means of gears, chains or hydraulics to adapt to coke oven risers in different positions.

[0070] The second exhaust channel is provided on the cantilever 7, one end of which is connected to the first exhaust channel and the other end is connected to the telescopic dust collecting hood. Optionally, the cantilever 7 is a hollow steel pipe to ensure that the exhaust gas can be smoothly collected and directed to the dust removal equipment.

[0071] Operation process:

[0072] When the coke oven enters the final stage of coking and needs to be aired out, the telescopic dust collecting hood is started and lowered to cover the rising pipe opening of the coke oven.

[0073] At the same time, the igniter is started to ignite the exhaust gas in the enclosed space.

[0074] The hot gas generated after the exhaust gas combustion and the incompletely burned exhaust gas enter the first exhaust channel through the second exhaust channel and are finally purified by the dust removal equipment.

[0075] After the drying of the oven is completed, the telescopic dust collecting hood rises away from the rising pipe opening, and the rotary drive drives the cantilever 7 to return to the initial position to prepare for the next operation.

[0076] Through the above specific implementation methods, the present invention realizes the automated ignition and waste gas collection and treatment during the coke oven riser airing process, effectively reduces environmental pollution, and improves production efficiency and safety.

[0077] Optionally, the telescopic dust collecting hood includes: a hood body 3, a lower tube 4, an upper tube 5, a lifting device, a guide groove 51, and a limiting rod 52;

[0078] The igniter is mounted on the housing 3, which is made of high-temperature resistant material to withstand the high-temperature flue gas from the coke oven riser. The housing 3 is designed in a conical or bell-shaped configuration to effectively collect and guide the flue gas upward, reducing smoke and dust escape. One or more high-efficiency igniters are installed on the top or side of the housing 3, as needed. These igniters are explosion-proof, ensuring stable operation in harsh environments and rapid ignition via electric spark or high-temperature ignition.

[0079] The lower tube 4 is connected to the upper portion of the housing 3 and is movably connected to the second exhaust passage. The lower tube 4 is also made of high-temperature resistant material. The lower end of the lower tube 4 is firmly connected to the upper portion of the housing 3 by flange or welding.

[0080] One end of the upper tube 5 is sleeved over the lower tube 4, slidingly engaging with it. One side is connected to the cantilever 7. The upper tube 5 serves as an outer protective shell for the lower tube 4. Its inner diameter is slightly larger than the outer diameter of the lower tube 4, ensuring smooth sliding of the lower tube 4. The outer wall of the upper tube 5 is connected to the cantilever 7 via a fixed bracket or welding. One end of the upper tube 5 is sleeved over the lower tube 4. The upper tube 5 is also provided with a guide groove 51 to guide the movement of the limit rod 52.

[0081] The lifting device is assembled with the upper tube 5 and the lower tube 4 to drive the lower tube 4 to move up and down in the upper tube 5; the lifting device adopts electric, hydraulic or pneumatic driving mode, through the actuators such as motors, hydraulic cylinders, cylinders, combined with transmission mechanisms such as screws, sprocket chains or linear guides, to realize the up and down movement of the lower tube 4 in the upper tube 5.

[0082] The guide groove 51 is provided on the upper tube 5; the guide groove 51 is provided on the outer wall of the upper tube 5 and extends axially along the upper tube 5. Its shape matches the limiting rod 52 to ensure that the limiting rod 52 slides smoothly in the guide groove 51 while limiting the rotational movement of the lower tube 4.

[0083] A limit rod 52 is connected to the lower tube 4 and partially disposed within the guide slot 51, slidingly engaging with the guide slot 51. One end of the limit rod 52 is fixedly connected to the bottom or side of the lower tube 4, while the other end extends through the guide slot 51 to a certain length. This prevents the lower tube 4 from separating from the upper tube 5 during movement and also serves as an indicator and limiter of the telescopic position.

[0084] The telescopic dust hood realizes the effective collection and automatic ignition of dust removal of flue gas emitted from the coke oven riser, which not only improves the dust removal efficiency but also reduces environmental pollution and manual operation risks.

[0085] Optionally, the lifting device includes: a mounting seat, a first linear telescopic mechanism 6, a guide wheel 63, and a flexible member 62;

[0086] The mounting base is connected to the upper tube 5 and / or cantilever 7. It is designed as a durable metal structure, such as cast steel or stainless steel, to ensure long-term stability and safety. Its shape and size are customized according to the actual layout of the coke oven riser and cantilever 7. It is securely attached to the upper tube 5 or cantilever 7 using bolts or other fastening devices.

[0087] The first linear telescopic mechanism 6 is mounted on the mounting base and uses an electric, pneumatic, or hydraulically driven linear actuator, such as an electric push rod, an air cylinder, or a hydraulic cylinder. It is directly fixed to the mounting base with a dedicated bracket or bolts to ensure smooth and shake-free operation.

[0088] The guide wheel 63 is provided at the end of the upper tube 5; a pulley or a sprocket can be selected, which is fixedly provided at the end of the upper tube 5 and rotates freely through the bearing to change the movement direction of the flexible member 62 and realize the movement of the cover body 3 in the vertical direction.

[0089] One end of the flexible member 62 is connected to the first linear telescopic mechanism 6, and the other end passes over the guide wheel 63, penetrates the upper tube 5, and is connected to the lower tube 4. A steel wire rope or chain can be used, with one end firmly connected to the output end of the first linear telescopic mechanism 6 and the other end passing over the guide wheel 63 before being connected to the lower tube 4. This converts the linear motion of the first linear telescopic mechanism 6 into vertical lifting motion of the cover body 3.

[0090] When ignition and dust removal operations are required, the control system issues a command to extend or shorten the first linear telescopic mechanism 6. As the linear telescopic mechanism moves, the flexible member 62 is pulled or relaxed, thereby driving the dust removal device to rise or fall along a preset path to a specified position.

[0091] Optionally, the lifting device further includes a contact switch 61 mounted on a mounting base. When the telescopic dust hood reaches a designated position covering the coke oven riser, the first linear telescopic mechanism 6 triggers the contact switch 61, halting its extension. The contact switch 61 is mounted on the mounting base, typically near the end of the first linear telescopic mechanism 6's motion path, ensuring accurate triggering when the telescopic dust hood reaches a designated position covering the coke oven riser. A high-temperature-resistant contact limit switch is selected for the contact switch 61.

[0092] Optionally, the rotary driver includes: a mounting frame 81, a second linear telescopic mechanism 8, and a connecting frame 82;

[0093] The mounting frame 81 is connected to the column 1; the mounting frame 81 is a solid frame structure and is firmly fixed to the column 1 by welding or bolting.

[0094] The second linear telescopic mechanism 8 is rotatably connected to the mounting frame 81. Similar to the first linear telescopic mechanism 6, the second linear telescopic mechanism 8 also utilizes an electric, pneumatic, or hydraulically driven linear actuator. The specific type is selected based on actual needs. The second linear telescopic mechanism 8 is rotatably connected to the mounting frame 81 via a hinged connection.

[0095] Connecting bracket 82 has one end fixed to cantilever 7 and the other end rotatably connected to the piston rod of second linear telescopic mechanism 8. One portion of connecting bracket 82 has a hole for cantilever 7 and is bolted to cantilever 7. The other portion is a lug protruding from the surface of cantilever 7 and connected to second linear telescopic mechanism 8.

[0096] How it works

[0097] During operation, the control system sends a control signal to the second linear telescopic mechanism 8 based on actual needs. Upon receiving the signal, the second linear telescopic mechanism 8 begins to telescope, driving the cantilever 7 to rotate around the column 1 to a predetermined angle via the connecting frame 82. Once fully rotated, the control system stops the movement of the second linear telescopic mechanism 8, ensuring that the dust removal equipment is in its operating position.

[0098] Optionally, the igniter includes: a high-energy igniter 32 and a high-temperature igniter 33;

[0099] A high-energy igniter 32 is mounted on the telescopic dust hood. It is preferably positioned near the smoke outlet to quickly ignite combustible materials in the smoke. This igniter utilizes high-voltage discharge technology to generate a high-temperature arc in a very short time, achieving fast and reliable ignition.

[0100] A high-temperature igniter 33 is mounted on the telescopic dust hood as an alternative or auxiliary ignition method. It uses the high temperature generated by an internal resistance wire to ignite the raw gas, working in conjunction with the high-energy igniter 32 or independently. The high-temperature igniter 33 generates high temperatures that directly act on the smoke, promoting the combustion reaction.

[0101] Optionally, explosion-proof flexible tubing 34 is installed outside the working leads of the high-energy igniter 32 and high-temperature igniter 33. To ensure safe operation of the igniters under complex operating conditions, these flexible tubing 34 is installed outside the working leads or conduits of the high-energy igniter 32 and high-temperature igniter 33. This flexible tubing offers excellent flexibility and explosion-proof properties, effectively insulating against external heat sources and mechanical shock, protecting internal wiring from damage. The flexible tubing 34 is secured by a cable tray 35. The cable tray is mounted on the cantilever and provides protection for the control cables of the entire mechanism.

[0102] Optionally, an inspection window 31 is provided on the cover body 3 .

[0103] Optionally, the cantilever 7 includes: a horizontal pipe section 71 and a vertical pipe section 72;

[0104] The horizontal pipe section 71 is connected to the telescopic dust collecting hood and is used to carry and adjust the position of the dust collecting hood;

[0105] The upper portion of the vertical pipe section 72 is connected to the horizontal pipe section 71 , and the lower portion is rotatably connected to the column 1 .

[0106] Optionally, the cantilever 7 is connected to the column 1 via a slewing bearing 73. This ensures the free rotation of the cantilever 7 in the horizontal direction, ensuring the stability and reliability of the device during long-term operation.

[0107] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A coke oven riser automatic ignition and dust removal device, characterized in that: include: Telescopic dust hood, which can be extended up and down, can cover or keep away from the coke oven riser; An igniter is provided on the telescopic dust collecting hood; A column having a first exhaust passage therein; An exhaust port is provided on the column and is connected to the first exhaust channel; Dust removal equipment, connected to the exhaust port; A cantilever, one end of which is rotatably connected to the column and the other end is connected to the telescopic dust collecting hood; A slewing drive is assembled with the column and the cantilever to drive the cantilever to rotate relative to the column; The second exhaust channel is arranged on the cantilever, one end of which is connected with the first exhaust channel, and the other end of which is connected with the telescopic dust collecting hood.

2. The automatic ignition and dust removal device for coke oven ascending pipe according to claim 1, characterized in that: The telescopic dust collecting hood portion comprises: a cover body, wherein the igniter is arranged on the cover body; The lower pipe is connected to the upper portion of the cover body and is movably connected to the second exhaust channel; The upper tube has one end sleeved on the lower tube, slidingly fitted with the lower tube, and one side connected to the cantilever; A lifting device is assembled with the upper tube and the lower tube to drive the lower tube to move up and down in the upper tube; A guide groove is provided on the upper tube; The limiting rod is connected to the lower tube, and is partially arranged in the guide groove and slidably matched with the guide groove.

3. The automatic ignition and dust removal device for coke oven ascending pipe according to claim 2, characterized in that: The lifting device comprises: A mounting base connected to the top tube and / or cantilever; A first linear telescopic mechanism is provided on the mounting seat; A guide wheel is provided at the end of the upper tube; One end of the flexible member is connected to the first linear telescopic mechanism, and the other end passes around the guide wheel, penetrates the upper tube, and is connected to the lower tube.

4. The automatic ignition and dust removal device for coke oven ascending pipe according to claim 3, characterized in that: The lifting device also includes: a contact switch disposed on the mounting base; and When the telescopic dust collecting hood reaches a designated position and covers the coke oven ascending pipe, the first linear telescopic mechanism triggers a contact switch and stops telescoping.

5. The automatic ignition and dust removal device for coke oven ascending pipe according to claim 1, characterized in that: The rotary drive comprises: A mounting frame connected to the column; A second linear telescopic mechanism is rotatably connected to the mounting frame; The connecting frame has one end fixedly arranged on the cantilever and the other end rotatably connected to the piston rod of the second linear telescopic mechanism.

6. The automatic ignition and dust removal device for coke oven ascending pipe according to claim 1, characterized in that: The igniter comprises: A high-energy igniter is provided on the telescopic dust collecting hood; The high-temperature igniter is arranged on the telescopic dust collecting hood.

7. The automatic ignition and dust removal device for coke oven ascending pipe according to claim 6, characterized in that: An explosion-proof flexible tube is provided on the outside of the working wire or conduit of the high-energy igniter and the high-temperature igniter.

8. The automatic ignition and dust removal device for coke oven ascending pipe according to claim 2, characterized in that: An inspection window is provided on the cover body.

9. The automatic ignition and dust removal device for coke oven ascending pipe according to claim 1, characterized in that: The cantilever comprises: The horizontal pipe section is connected to the telescopic dust collecting hood; The upper part of the vertical pipe section is connected to the horizontal pipe section, and the lower part is rotatably connected to the column.

10. The automatic ignition and dust removal device for coke oven ascending pipe according to claim 1, characterized in that: The cantilever is connected to the column via a slewing support bearing.

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