Multi-protection device for coke oven ascension pipe gas diffusion igniter

Abstract

The utility model relates to a multi-protection device for a coke oven riser gas diffusion igniter, which adopts a shell, a separation plate is arranged in the shell, an ignition head jacket and an ignition cavity are arranged in front of and behind the separation plate, and a silicon nitride ignition head is arranged in the shell and is fixed through a positioning screw. The top cover is provided with a water outlet seal (water drops), the ignition head cannot be poured on the ignition head when the top cover is opened, the ignition head cannot be affected and damaged due to weather and the like, multi-layer protection is adopted for the igniter, the ignition effect of combustible gas discharged when the top cover is opened is guaranteed, pollution of the combustible gas to the atmosphere can be greatly reduced, and the service life of the igniter is prolonged. The device is simple in structure, multilayer in protection, beneficial to long-term stable and safe operation of a coke oven system, and capable of ensuring effective ignition.

Description

Technical Field

[0001] The utility model relates to a coke oven riser gas dispersing and igniting device, in particular to a coke oven riser gas dispersing and igniting device with multiple protections. Background Art

[0002] During coke oven production, the riser cover on the coking plant's coke ovens is opened to release raw gas as required by the process. This inevitably releases raw gas into the atmosphere, which pollutes the environment. Therefore, the raw gas is released and ignited to prevent this pollution. However, when the cover is opened, water seals (with water), rain, snow, wind, and other conditions can affect and damage the igniter head, affecting both ignition and service life. To address this issue, we proposed a multi-protection device for the coke oven riser gas release igniter that can ensure effective ignition and extend the igniter's service life. Summary of the Invention

[0003] In order to solve the above technical problems, the utility model is a multi-protection device for a coke oven riser gas release igniter, and its technical solution is as follows:

[0004] A top cover for controlling gas discharge is hingedly installed on the top of the riser. A water seal is provided around the upper portion of the riser. Several shells are installed around the opening of the riser. Each shell is cylindrical and has openings at the front and rear. The front opening is a downward bevel cut, pointing to the gas discharge point.

[0005] An isolation plate is provided at the rear of each housing, dividing the housing into a front and a rear portion. A through hole is provided in the middle of the isolation plate. An ignition head jacket is fixedly installed outside the through hole and behind the isolation plate. The rear of the ignition head jacket is open, and a silicon nitride ignition head is placed in the ignition head jacket, with the front end of the silicon nitride ignition head extending out of the through hole.

[0006] An ignition cavity is fixedly installed in front of the isolation plate and on the periphery of the silicon nitride ignition head. The front of the ignition cavity is open, and its diameter is larger than the diameter of the ignition head outer shell.

[0007] Furthermore, a positioning screw is provided at the bottom of the side of the ignition head jacket, corresponding to the opening on the shell. When the silicon nitride ignition head is placed inside the ignition head jacket, a screwdriver can be inserted into the opening to tighten the positioning screw to fix the silicon nitride ignition head.

[0008] Furthermore, an external thread is provided on the outer periphery of the rear end of the ignition head housing, which is connected to the cable protection stainless steel hose through a matching nut.

[0009] Furthermore, each housing and the ignition head housing, the middle through hole of the isolation plate, the ignition cavity, and the silicon nitride ignition head in the housing can be arranged on the same central axis.

[0010] Furthermore, the central axis of each shell does not coincide with the central axis of the ignition head jacket, the middle through hole of the isolation plate, the ignition cavity and the silicon nitride ignition head in the shell, and can be eccentrically arranged upward to further improve the protection effect.

[0011] Furthermore, each shell is provided with a mounting bracket, which is mounted on a bracket fixed to the riser through a mounting hole via a matching accessory.

[0012] The beneficial effects of the present invention are as follows: the present invention provides a multi-layered protection device for a coke oven riser gas release igniter. The present invention utilizes a housing, an isolation plate within the housing, an ignition head jacket and an ignition chamber mounted in front and behind the isolation plate, and a silicon nitride ignition head mounted in the housing and secured by positioning screws. This prevents the silicon nitride ignition head from being affected by water seals (water droplets) released when the top cover is opened during ignition, and prevents the ignition head from being affected or damaged by weather or other factors. The present invention employs multi-layered protection for the igniter, ensuring effective ignition of the combustible gas discharged when the top cover is opened, significantly reducing atmospheric pollution, and extending the service life of the igniter. The present invention has a simple structure and multi-layered protection, which is conducive to the long-term stable and safe operation of the coke oven system and ensures effective ignition. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 Cross-sectional view after installing the cable protection hose;

[0015] As shown in the figure, 1 is a shell, 2 is an ignition chamber, 3 isolating plate, 4 is an ignition head jacket, 5 is a rear opening, 6 is a mounting bracket, 7 is a mounting hole, 8 is an opening, 9 is a silicon nitride ignition head, 10 is a front opening, 11 is a positioning screw, 12 is a cable protection hose, and 13 is an external thread. DETAILED DESCRIPTION

[0016] As shown in the figure, the present invention provides a multi-protection device for a coke oven riser gas igniter. A cover is hingedly mounted on the top of the riser pipe in a coke oven in a coking plant to control gas emissions. A water seal is located around the top of the riser pipe. Three housings 1 are installed around the riser pipe opening. Each housing 1 has a mounting bracket 6 located at the lower rear portion. The mounting bracket 6 is secured to the riser pipe via a matching mounting member (e.g., screw) through a mounting hole 7. Each housing 1 is equidistantly arranged around the riser pipe opening. It is cylindrical in shape, either circular or rectangular (in this embodiment, cylindrical). It has openings at both the front and rear, namely a front opening 10 and a rear opening 5. The front opening is cut obliquely downward to the left, facing the gas discharge point. When the cover is opened, the housings 1 protect it from water (or rain, snow, or other weather conditions) from spraying onto the silicon nitride ignition head, potentially affecting ignition.

[0017] Each housing 1 is provided with a separator plate 3 at the rear. Its outer diameter is equal to the inner diameter of the housing 1 and its periphery is welded to the interior of the housing 1, dividing the housing into front and rear sections. A through-hole is provided in the center of the separator plate. An ignition head housing 4 is fixedly mounted outside the through-hole and behind the separator plate. The front of the housing is welded to the separator plate, leaving an open rear end. A silicon nitride ignition head 9 (available in the TX12V / 30W model) is housed within the housing, with the front end of the silicon nitride ignition head 9 extending out of the through-hole. An ignition chamber 2 is fixedly mounted in front of and outside the silicon nitride ignition head. Its outer diameter is larger than that of the housing. The rear of the ignition chamber 2 is welded to the separator plate 3, leaving an open front end. The central axis of the separator plate, through-hole, housing, and ignition chamber can be aligned with the housing 1 or eccentrically (i.e., the through-hole is positioned near the upper edge of the separator plate 3 and faces upward, with the housing and ignition chamber aligned with the through-hole). A positioning screw 11 is provided at the bottom of the side of the ignition head housing 4, corresponding to the opening 8 on the shell. When the silicon nitride ignition head is placed inside the ignition head housing, a screwdriver can be inserted into the opening 8 to tighten the positioning screw 11 to fix the silicon nitride ignition head, which can better play a protective role and avoid affecting the ignition of the ignition head.

[0018] An external thread 13 is provided on the outer periphery of the rear end of the ignition head housing, which is connected to the cable protection stainless steel hose 12 through a matching nut, so as to facilitate connection with the controller.

[0019] According to needs, the shell can be shaped like a cuboid or other shapes, so as to achieve the best effect of the present invention.

[0020] This utility model utilizes a silicon nitride open flame ignition head, capable of ignition temperatures up to 1100°C. High-voltage discharge ignition needles can also be used, achieving similarly effective ignition results. The power lead can withstand temperatures up to 500°C and features three layers of protection (housing, ignition chamber, and ignition head jacket) to protect it from open flames and high-temperature environments. The entire housing (housing, isolation plate, ignition chamber, and ignition head jacket) is constructed from SUS304 stainless steel, offering oxidation and corrosion resistance, a long service life, and exceptionally easy maintenance. This utility model is primarily designed for igniting gas from coke oven risers, igniting overpressure from manifolds, and providing emergency ignition in the event of a coke oven accident. It can also be used to ignite other combustible gases. Its simple structure and cleverly utilized shielding surfaces effectively protect the ignition head from damage caused by rain, snow, wind, and water introduced when the water seal cover is opened. This effectively ensures ignition effectiveness, extends the igniter's service life, and contributes to the long-term stable and safe operation of the coke oven system.

[0021] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A multi-protection device for a gas emission igniter of a coke oven riser, wherein a top cover for controlling gas emission is hingedly mounted on the top of the riser, and a water seal is provided around the upper portion of the riser, characterized in that: A plurality of shells (1) are installed around the opening of the riser, each shell (1) is cylindrical, with both front and rear openings, and the front opening (10) is a downwardly inclined cut, and the front opening (10) points to the gas discharge location; An isolation plate (3) is provided at the rear of each shell, the isolation plate dividing the shell into a front and a rear part, a through hole is provided in the middle of the isolation plate, an ignition head jacket (4) is fixedly installed outside the through hole and behind the isolation plate, the rear of the ignition head jacket is open, and a silicon nitride ignition head (9) is placed in the ignition head jacket, with the front end of the silicon nitride ignition head extending out of the through hole; An ignition chamber (2) is fixedly installed in front of the isolation plate and outside the silicon nitride ignition head. The front of the ignition chamber is open, and its diameter is larger than the diameter of the ignition head outer shell.

2. A coke oven riser gas release igniter multi-protection device as claimed in claim 1, characterized in that: A positioning screw (11) is provided at the bottom of the side of the ignition head jacket (4), corresponding to the opening (8) on the shell. When the silicon nitride ignition head is placed inside the ignition head jacket, a screwdriver can be inserted into the opening to tighten the positioning screw to fix the silicon nitride ignition head (9).

3. A coke oven riser gas release igniter multi-protection device as claimed in claim 2, characterized in that: An external thread (13) is provided on the periphery of the tail of the ignition head jacket and is connected to the cable protection stainless steel hose (12) through a matching nut.

4. A coke oven riser gas release igniter multi-protection device as claimed in claim 3, characterized in that: Each shell and the ignition head outer shell, the middle through hole of the isolation plate, the ignition cavity and the silicon nitride ignition head in the shell can be arranged on the same central axis.

5. The multi-protection device for a coke oven riser gas release igniter according to claim 3, characterized in that: The central axis of each shell does not coincide with the central axis of the ignition head jacket, the middle through hole of the isolation plate, the ignition cavity and the silicon nitride ignition head in the shell, and can be eccentrically arranged upward to further improve the protection effect.

6. A coke oven riser gas release igniter multi-protection device as claimed in claim 4 or 5, characterized in that: Each shell is provided with a mounting frame (6), which is mounted on a bracket fixed to the riser through a matching accessory and through a mounting hole (7).

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