Device for automatically detecting oxygen content and dust content of coke oven

Abstract

The utility model relates to a device for automatically detecting the oxygen content and the dust content of a coke oven, and belongs to the technical field of optimization of a fire adjusting process of the coke oven. An oxygen detection probe and a dust detection probe in the collection chamber detect the oxygen content and the dust content in flue gas and send data to a computer terminal for analysis through a gateway module and a controller, and the controller can electrically control an air blower, a dust removal fan and an electromagnetic valve according to the current state. The current combustion state of the coke oven is stable, and the dust content of flue gas emission of the coke oven is ensured to meet the emission standard.

Description

Technical Field

[0001] The utility model belongs to the technical field of coke oven firing process optimization, and particularly relates to a device for automatically detecting the oxygen content and dust content in a coke oven. Background Art

[0002] The oxygen content in coke oven flue gas is one of the important detection parameters in the coke oven process. The detection and analysis of the oxygen content in coke oven flue gas have important guiding significance for the thermal state, firing condition and sealing monitoring of the coke oven. By detecting the oxygen content in the coke oven flue gas, the current operating state of the coke oven can be judged, and necessary process adjustments can be made according to its state, so that the coke oven always works under the best process state; and the detection and control of the dust content during the flue gas emission process are crucial for environmental protection. By detecting and analyzing the dust content, it is ensured that the gas emission meets the standards, and the flue gas that does not meet the standards is treated and then discharged into the atmosphere.

[0003] In the prior art, there is an automatic measurement and automatic adjustment control system for the coke oven furnace head temperature with the publication number of CN117369556A. This system uses a probe to measure the temperature and oxygen content, and through the logical analysis of the DCS system and the digital controller, the solenoid valve is controlled to adjust the temperature; during the coke oven production process, dust will reduce the combustion efficiency and increase the risk of incomplete combustion, which may lead to an increase in the emission of harmful gases and particulate matter, so the monitoring of the dust content is also very important for the coke oven firing control. Content of the Utility Model

[0004] The technical problem solved by the utility model is to overcome the deficiencies in the detection and analysis of the oxygen content and dust content in the prior art, and provide a device for automatically detecting the oxygen content and dust content in a coke oven.

[0005] The technical solution adopted by the utility model is as follows:

[0006] The device for automatically detecting the oxygen content and dust content in a coke oven described in the utility model includes a flue and an intake pipe. The flue is connected to a collection chamber, and an oxygen detection probe and a dust detection probe are installed inside the collection chamber. The collection chamber is connected to an exhaust pipe and a dust removal pipe, and the dust removal pipe is connected to a dust removal fan; the intake pipe is connected to an air inlet and a blower; electromagnetic valves are provided on the intake pipe, the exhaust pipe and the dust removal pipe;

[0007] Both the oxygen detection probe and the dust detection probe are connected to a gateway module, the gateway module is connected to a controller, and the controller is electrically connected to the electromagnetic valve, the blower and the dust removal fan respectively.

[0008] Both the exhaust pipe and the dust removal fan are connected to a chimney.

[0009] The gateway module adopts a Profinet gateway device.

[0010] The controller adopts a PLC controller, and the PLC controller is also connected to a computer terminal.

[0011] The computer terminal displays and analyzes the data trends of oxygen content and dust content through WINCC.

[0012] The blower and the dust removal fan adopt variable frequency fans.

[0013] The intake pipe is connected to the combustion chamber through the intake port, and the combustion chamber is connected to the flue.

[0014] The utility model has the following beneficial effects:

[0015] Through the detection and analysis of the oxygen content and dust content in the coke oven flue gas, the utility model can not only judge the current operating state of the coke oven and make self-adjustment according to the corresponding operating state, but also ensure full combustion of the working state of the coke oven during the production process of the coke oven, and ensure that the flue gas emissions meet the emission standards and make self-treatment and emission according to the corresponding situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the utility model;

[0017] Figure 2 It is a block diagram of the electrical connection of the utility model.

[0018] Wherein: 1. Oxygen detection probe; 2. Dust detection probe; 3. Gateway module; 4. Controller; 5. Computer terminal; 6. Intake pipe; 7. Exhaust pipe; 8. Dust removal pipe; 9. Electromagnetic valve; 10. Intake port; 11. Flue; 12. Collection chamber; 13. Blower; 14. Dust removal fan; 15. Chimney. DETAILED DESCRIPTION OF THE INVENTION

[0019] As Figure 1 and Figure 2 shown, the device for automatically detecting the oxygen content and dust content in a coke oven of the utility model includes a flue 11 and an intake pipe 6. The flue 11 is connected to a collection chamber 12. An oxygen detection probe 1 and a dust detection probe 2 are installed inside the collection chamber 12. The collection chamber 12 is connected to an exhaust pipe 7 and a dust removal pipe 8. The dust removal pipe 8 is connected to a dust removal fan 14; the intake pipe 6 is connected to an intake port 10 and a blower 13; electromagnetic valves 9 are provided on the intake pipe 6, the exhaust pipe 7 and the dust removal pipe 8;

[0020] Both the oxygen detection probe 1 and the dust detection probe 2 are connected to the gateway module 3. The gateway module 3 is connected to the controller 4. The controller 4 is electrically connected to the electromagnetic valve 9, the blower 13 and the dust removal fan 14 respectively.

[0021] Both the exhaust duct 7 and the dust removal fan 14 are connected to the chimney 15.

[0022] The gateway module 3 uses a Profinet gateway device.

[0023] The controller 4 uses a PLC controller, and the PLC controller is also connected to a computer terminal 5.

[0024] The computer terminal 5 displays the data trends of the oxygen content and the dust content through WINCC.

[0025] The blower 13 and the dust removal fan 14 are variable frequency fans.

[0026] The intake duct 6 is connected to the combustion chamber through the intake port 10, and the combustion chamber is connected to the flue 11.

[0027] Specifically, during the production process of the coke oven, the flue gas produced by the coke oven is transported to the collection chamber 12 through the flue 11. The oxygen detection probe 1 and the dust detection probe 2 in the collection chamber 12 detect the data of the oxygen content and the dust content in the flue gas. The above detection data is sent to the controller 4 through the Profinet gateway device. The controller 4 is connected to the computer terminal 5, and the computer terminal 5 analyzes the data of the oxygen content and the dust content through WICC and can save the historical data of the oxygen content and the dust content.

[0028] When the oxygen content is insufficient, the controller 4 sends instructions to the blower 13 and the electromagnetic valve 9. The blower 13 starts and the electromagnetic valve 9 on the intake duct 6 opens to increase the air volume for the coke oven combustion system and ensure the full combustion production state of the coke oven combustion system.

[0029] When the dust content is normal, the electromagnetic valve 9 on the exhaust duct 7 is in the open state. The coke oven flue gas is transported to the chimney 15 through the exhaust duct 7 and then discharged into the atmosphere. When the dust content is too high, the controller 4 controls the electromagnetic valve 9 on the exhaust duct 7 to close, and the electromagnetic valve 9 on the dust removal duct 8 opens. The dust removal fan 14 starts, and the flue gas is transported from the collection chamber 12 to the dust removal duct 8, processed by the dust removal fan 14 and then transported to the chimney 15 and then discharged into the atmosphere.

Claims

1. An apparatus for automatically detecting the oxygen content and dust content in a coke oven, comprising a flue (11) and an intake pipe (6), characterized in that, The flue (11) is connected to a collection chamber (12). An oxygen detection probe (1) and a dust detection probe (2) are installed inside the collection chamber (12). The collection chamber (12) communicates with an exhaust duct (7) and a dust removal duct (8); the dust removal duct (8) communicates with a dust removal fan (14); the intake duct (6) communicates with an intake port (10) and a blower (13); electromagnetic valves (9) are provided on the intake duct (6), the exhaust duct (7) and the dust removal duct (8). The oxygen detection probe (1) and the dust detection probe (2) are both connected to a gateway module (3), the gateway module (3) is connected to a controller (4), and the controller (4) is electrically connected to the electromagnetic valve (9), the blower (13) and the dust removal fan (14) respectively.

2. The device for automatically detecting the oxygen content and dust content in a coke oven according to claim 1, wherein The exhaust duct (7) and the dust removal fan (14) both communicate with a chimney (15).

3. The device for automatically detecting the oxygen content and dust content in a coke oven according to claim 1, wherein The gateway module (3) uses a Profinet gateway device.

4. The device for automatically detecting the oxygen content and dust content in a coke oven according to claim 1, characterized in that, The controller (4) uses a PLC controller, and the PLC controller is also connected to a computer terminal (5).

5. The device for automatically detecting the oxygen content and dust content in a coke oven according to claim 4, wherein, The computer terminal (5) displays and analyzes the data trends of the oxygen content and the dust content through WINCC.

6. The device for automatically detecting the oxygen content and dust content in a coke oven according to claim 1, wherein The blower (13) and the dust removal fan (14) use variable frequency fans.

7. The device for automatically detecting the oxygen content and dust content in a coke oven according to claim 1, characterized in that, The intake duct (6) communicates with a combustion chamber through the intake port (10), and the combustion chamber communicates with the flue (11).

Images