An automatic venting device for the gas collecting pipe of a coke oven.

Abstract

This utility model relates to the field of coking production waste gas venting technology, and discloses an automatic venting device for the gas collecting pipe of a coke oven equipment. The device includes a gas collecting pipe body, a pressure sensor at the top of the gas collecting pipe body, and exhaust pipes fixedly connected to the front and rear ends of the outer ring of the gas collecting pipe body. An explosion-proof solenoid valve is installed at the connection between the exhaust pipes and the gas collecting pipe body. A combustion pipe is connected to the end of each of the two exhaust pipes furthest from the explosion-proof solenoid valve. A high-energy igniter is installed inside the combustion pipe via a mounting rod, and a flame detector is installed inside the mounting rod on one side of the high-energy igniter. Through the pressure sensor, explosion-proof solenoid valve, exhaust pipes, and combustion pipe, the venting accuracy is improved, the vented gas can be ignited, preventing it from accumulating in the air to form an explosive gas mixture, and the inner wall of the combustion pipe can be flushed to prevent excessive accumulation of tar and impurities after prolonged use.

Description

Technical Field

[0001] This utility model relates to the field of coking production waste gas venting technology, specifically an automatic venting device for the gas collecting pipe of a coke oven. Background Technology

[0002] The coke oven gas collecting pipe is an auxiliary device of the coke oven that collects the raw gas from each carbonization chamber. It is used to collect the raw gas escaping from the carbonization chamber. The venting device can automatically open or close according to the pressure changes in the gas collecting pipe. When the pressure in the gas collecting pipe is too high and exceeds the set safety pressure value, the venting device will automatically open to allow some of the gas to be safely released into the atmosphere and prevent the gas collecting pipe from being damaged due to excessive pressure.

[0003] Chinese patent provides an automatic venting device for a coke oven gas collecting pipe, publication number CN210340766U, which includes a gas collecting pipe with a pipe inside. The gas collecting pipe is designed in a T-shape, and a connecting bolt is fixedly connected to the bottom end of the gas collecting pipe. A gas passage is provided inside the connecting bolt and the gas passage communicates with the pipe. The top two ends of the gas collecting pipe are designed to be detachable.

[0004] The above-mentioned venting device is equipped with an exhaust port, which has a T-shaped exhaust channel. A top block is fixedly connected to the inner wall of the exhaust channel via a fixed shaft. A ball is connected to the bottom of the top block via a spring. When the pressure inside the furnace reaches a certain level, the gas will push up the ball and the gas will be released from the exhaust channel. The gas collecting pipe is threaded with a first connector and a second connector, which facilitates disassembly, cleaning and maintenance and improves the service life of the gas collecting pipe.

[0005] However, the structure is relatively simple, relying solely on a mechanical spring structure to release raw coal gas, resulting in poor accuracy. Furthermore, the direct release of raw coal gas will release a large amount of pollutants, polluting the atmospheric environment. At the same time, when the released coal gas accumulates in the air and mixes with the air to reach the explosive limit, it may cause an explosion accident when it encounters a source of ignition. Utility Model Content

[0006] The purpose of this invention is to provide an automatic venting device for the gas collecting pipe of a coke oven, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An automatic venting device for a gas collecting pipe of a coke oven equipment includes a gas collecting pipe body, a gas pressure sensor is provided at the top of the gas collecting pipe body, and exhaust pipes are fixedly connected to the front and rear ends of the outer ring of the gas collecting pipe body. An explosion-proof solenoid valve is provided at the connection between the exhaust pipe and the gas collecting pipe body.

[0009] The two exhaust pipes are connected to a combustion pipe at the end away from the explosion-proof solenoid valve. A high-energy igniter is installed inside the combustion pipe via a mounting rod. A flame detector is installed inside the mounting rod and on one side of the high-energy igniter. A flame arrester is installed at the connection between the exhaust pipe and the combustion pipe. A jet pipe is connected to the rear end of the exhaust pipe, and a gas supply valve is installed between the jet pipe and the exhaust pipe.

[0010] Preferably, a water supply ring pipe is installed inside the combustion pipe and on the side near the exhaust pipe, and a plurality of water spray heads are provided on the side of the water supply ring pipe away from the exhaust pipe.

[0011] Preferably, a water inlet groove is provided on the side of the combustion tube away from the exhaust pipe, a waste discharge box adapted to the water inlet groove is installed at the bottom end of the combustion tube, and a drain outlet adapted to the waste discharge box is provided at the bottom end of the combustion tube.

[0012] Preferably, the bottom of the waste discharge box is connected to a waste discharge pipe, the interior of the waste discharge box is inclined, and the end away from the waste discharge pipe is raised.

[0013] Preferably, the plurality of water nozzles are arranged at equal intervals within the water supply ring pipe, and both the water supply ring pipe and the water nozzles are made of high-temperature resistant metal material.

[0014] Preferably, a water supply pipe is connected to the top end of the combustion tube, and one end of the water supply pipe that extends into the combustion tube is connected to the inlet of the water supply ring pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention utilizes a combination of a pressure sensor, an explosion-proof solenoid valve, an exhaust pipe, and a combustion pipe. When the pressure sensor detects that the pressure inside the gas collecting pipe has reached a set upper limit, it can control one of the explosion-proof solenoid valves to open and automatically release the gas. Once the pressure drops to a safe range, it will automatically close. By detecting the emissions, the accuracy of the release can be improved.

[0017] By setting up a combustion tube, mounting rod, high-energy igniter, and flame detector in coordination, the released gas can be ignited, preventing it from accumulating in the air and forming an explosive gas mixture. At the same time, the combustion of gas can reduce environmental pollution. Furthermore, by setting up water spray heads, water supply ring pipes, and water supply pipes in conjunction with the combustion tube, the inner wall of the combustion tube can be flushed to prevent excessive accumulation of tar and impurities in the combustion tube after long-term use, thus avoiding a significant impact on the release of gas. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an automatic venting device for the gas collecting pipe of a coke oven equipment according to an embodiment of this utility model.

[0019] Figure 2 This is a top view of the exhaust pipe and combustion pipe in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the combustion tube in an embodiment of this utility model.

[0021] In the diagram: 1. Gas collecting pipe body; 2. Gas pressure sensor; 3. Exhaust pipe; 4. Explosion-proof solenoid valve; 5. Combustion pipe; 6. Flame arrester; 7. Jet pipe; 8. Water supply ring pipe; 9. Water nozzle; 10. Water supply pipe; 11. Mounting rod; 12. High-energy igniter; 13. Flame detector; 14. Waste discharge box; 15. Waste discharge pipe; 16. Water inlet tank. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0023] Combination Figures 1-3 An automatic venting device for the gas collecting pipe of a coke oven equipment includes a gas collecting pipe body 1, a gas pressure sensor 2 is provided at the top of the gas collecting pipe body 1, and exhaust pipes 3 are fixedly connected to the front and rear ends of the outer ring of the gas collecting pipe body 1. An explosion-proof solenoid valve 4 is provided at the connection between the exhaust pipe 3 and the gas collecting pipe body 1.

[0024] See Figure 2 and Figure 3 Furthermore, it is found that the ends of the two exhaust pipes 3 away from the explosion-proof solenoid valve 4 are connected to the combustion pipe 5. A high-energy igniter 12 is installed inside the combustion pipe 5 through the mounting rod 11. A flame detector 13 is installed inside the mounting rod 11 and on one side of the high-energy igniter 12. A flame arrester 6 is provided at the connection between the exhaust pipe 3 and the combustion pipe 5. A jet pipe 7 is connected through the rear end of the exhaust pipe 3, and a gas supply valve is provided between the jet pipe 7 and the exhaust pipe 3.

[0025] Specifically, the gas collecting pipe body 1 can be installed at the coke oven exhaust port according to existing technology. During the operation of the coke oven, the gas collecting pipe body 1 can collect the raw coal gas escaping from the carbonization chamber. When the pressure inside the gas collecting pipe body 1 is too high and exceeds the safety pressure value set at the pressure sensor 2, one of the explosion-proof solenoid valves 4 can be opened to start releasing the coal gas. When the pressure drops to a safe range, the opened explosion-proof solenoid valve 4 will automatically close, thereby stopping the release process. By detecting the release, the gas collecting pipe body 1 can be prevented from being damaged due to excessive pressure. The gas discharged through the explosion-proof solenoid valve 4 will enter the combustion pipe 5 through the exhaust pipe 3. At this time, the high-energy igniter 12 can be turned on for high-energy ignition. The igniter 12 can ignite the released coal gas. At this time, the flame detector 13 can detect the combustion status in real time to ensure that the high-energy igniter 12 operates stably and ignites the released coal gas. There are two sets of combustion tubes 5 and explosion-proof solenoid valves 4. When the coal gas in one set of combustion tubes 5 is ignited and the flame detector 13 cannot detect the flame, the corresponding explosion-proof solenoid valve 4 will be closed and the other explosion-proof solenoid valve 4 will be opened to deliver the gas to the other combustion tube 5 and repeat the above steps to ignite the gas. Through the dual setting, if one high-energy igniter 12 fails, the other high-energy igniter 12 can still ignite the discharged coal gas, reducing the probability that the released coal gas will not be ignited due to the failure. Example

[0026] See Figure 3 Furthermore, based on Embodiment 1, a water supply ring pipe 8 is installed inside the combustion tube 5 and on the side near the exhaust pipe 3. Several water nozzles 9 are provided on the side of the water supply ring pipe 8 away from the exhaust pipe 3. A water inlet trough 16 is opened inside the combustion tube 5 on the side away from the exhaust pipe 3. A waste discharge box 14 adapted to the water inlet trough 16 is installed at the bottom end of the combustion tube 5. A sewage outlet adapted to the waste discharge box 14 is opened through the bottom end of the combustion tube 5. A waste discharge pipe 15 is connected to the bottom end of the waste discharge box 14. The interior of the waste discharge box 14 is inclined, and the end away from the waste discharge pipe 15 is raised. Several water nozzles 9 are arranged at equal intervals inside the water supply ring pipe 8. Both the water supply ring pipe 8 and the water nozzles 9 are made of high-temperature resistant metal. A water supply pipe 10 is connected to the top end of the combustion tube 5, and the end of the water supply pipe 10 extending into the combustion tube 5 is connected to the water inlet of the water supply ring pipe 8.

[0027] Specifically, during normal use, the gas can be guided to different combustion tubes 5 for combustion and emission by alternately opening the explosion-proof solenoid valve 4, rather than using a single setting, to improve service life. When combustion is not taking place in the combustion tube 5, the cleaning fluid can be delivered to the water supply ring pipe 8 by connecting the water supply pipe 10 to an external liquid pump in advance. The water is then continuously sprayed into the combustion tube 5 through the spray head 9 at the water supply ring pipe 8, thereby flushing the combustion tube 5 and washing away the tar and impurities produced by the combustion of gas. The flushing water flow can be blocked by the water inlet trough 16, and the wastewater can be guided by the waste discharge box 14 to be discharged from the waste discharge pipe 15. Before the discharge process, the waste discharge pipe 15 can be connected to an external sewage pipe in advance to guide the wastewater to a suitable treatment device.

[0028] In actual operation, the gas collecting pipe body 1 can be installed at the coke oven exhaust port according to the existing technology. During the use of the coke oven, the raw coal gas escaping from the carbonization chamber can be collected through the gas collecting pipe body 1. When the pressure inside the gas collecting pipe body 1 is too high and exceeds the safe pressure value set at the gas pressure sensor 2, one of the explosion-proof solenoid valves 4 can be opened to start releasing the coal gas. When the pressure drops to a safe range, the opened explosion-proof solenoid valve 4 will automatically close, thereby stopping the release process.

[0029] By detecting the venting, the gas collecting pipe body 1 can be prevented from being damaged due to excessive pressure. The gas discharged through the explosion-proof solenoid valve 4 will enter the combustion pipe 5 through the exhaust pipe 3. At this time, the high-energy igniter 12 can be turned on, and the vented gas can be ignited through the high-energy igniter 12. At this time, the combustion situation can be detected in real time through the flame detector 13 to ensure that the high-energy igniter 12 operates stably and ignites the vented gas.

[0030] Furthermore, there are two sets of combustion tubes 5 and explosion-proof solenoid valves 4. When the gas in one set of combustion tubes 5 is ignited and the flame detector 13 cannot detect the flame, the corresponding explosion-proof solenoid valve 4 will be closed and the other explosion-proof solenoid valve 4 will be opened so that the gas can be delivered to the other combustion tube 5 and the ignition operation will be performed again according to the above steps. With the dual exhaust setting, when one of the high-energy igniters 12 fails, it can be switched to the other high-energy igniter 12 to continuously ignite the exhaust gas, reducing the probability that the released gas will not be ignited due to the failure.

[0031] Furthermore, during normal use, the gas can be guided to different combustion tubes 5 for combustion and emission by alternately opening the explosion-proof solenoid valve 4. It is not a single setting and can be used alternately to improve service life. When combustion is not taking place in the combustion tube 5, the cleaning fluid can be delivered to the water supply ring pipe 8 by connecting the water supply pipe 10 to the external liquid pump in advance. The cleaning fluid is then continuously sprayed into the combustion tube 5 through the spray head 9 at the water supply ring pipe 8, thereby flushing the combustion tube 5 to remove the tar and impurities produced by the combustion of gas. Toluene organic solvent can be selected as the cleaning fluid. It has relatively stable chemical properties and is effective in dissolving tar. However, toluene has a certain degree of toxicity, and safe operating procedures must be followed during use.

[0032] Furthermore, the water inlet trough 16 can block the flushing water flow, and the waste discharge box 14 can guide the sewage so that it can be discharged from the waste discharge pipe 15. Before the discharge process, the waste discharge pipe 15 can be connected to the external sewage pipe in advance to guide the wastewater to a suitable treatment device.

[0033] Furthermore, the control components and modules used in the aforementioned pressure sensor 2, explosion-proof solenoid valve 4, high-energy igniter 12, and flame detector 13 are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve improvements to the software and power supply.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coke oven battery gas collecting main automatic bleeding device, comprising a gas collecting main body (1), the top end of the gas collecting main body (1) is provided with a gas pressure sensor (2), characterized in that: The outer ring of the gas collecting pipe body (1) is fixedly connected to the front and rear ends of the exhaust pipe (3), and an explosion-proof solenoid valve (4) is provided at the connection between the exhaust pipe (3) and the gas collecting pipe body (1). The two exhaust pipes (3) are connected to a combustion pipe (5) at the end away from the explosion-proof solenoid valve (4). A high-energy igniter (12) is installed inside the combustion pipe (5) via a mounting rod (11). A flame detector (13) is installed inside the mounting rod (11) and on one side of the high-energy igniter (12). A flame arrester (6) is provided at the connection between the exhaust pipe (3) and the combustion pipe (5). A jet pipe (7) is connected to the rear end of the exhaust pipe (3), and a gas supply valve is provided between the jet pipe (7) and the exhaust pipe (3).

2. A coke oven battery automatic collector tapping device according to claim 1, characterized in that: A water supply ring pipe (8) is installed inside the combustion pipe (5) and on the side near the exhaust pipe (3). Several water spray heads (9) are provided on the side of the water supply ring pipe (8) away from the exhaust pipe (3).

3. A coke oven battery automatic collector tapping device according to claim 2, characterized in that: A water inlet trough (16) is provided on the side of the combustion tube (5) away from the exhaust pipe (3). A waste discharge box (14) adapted to the water inlet trough (16) is installed at the bottom of the combustion tube (5). A sewage outlet adapted to the waste discharge box (14) is provided at the bottom of the combustion tube (5).

4. A coke oven battery automatic collector tapping device according to claim 3, characterized in that: The bottom end of the waste discharge box (14) is connected to the waste discharge pipe (15). The interior of the waste discharge box (14) is inclined, and the end away from the waste discharge pipe (15) is raised.

5. A coke oven battery automatic collector tapping device according to claim 2, characterized in that: Several of the spray heads (9) are arranged at equal intervals in the water supply ring pipe (8), and both the water supply ring pipe (8) and the spray heads (9) are made of high-temperature resistant metal material.

6. The automatic venting device for the gas collecting pipe of a coke oven equipment according to claim 2, characterized in that: A water supply pipe (10) is connected to the top end of the combustion pipe (5), and one end of the water supply pipe (10) that extends into the combustion pipe (5) is connected to the inlet of the water supply ring pipe (8).

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