Coke oven gas blending combustion boiler device

Abstract

According to the coke oven gas blending combustion boiler device, the middle section of a raw coke oven gas pipeline is communicated with one end of a furnace gas mixing pipeline, the furnace gas mixing pipeline is sequentially communicated with a non-condensable gas port and a desorption gas port of a stabilizing tower, and the other end of the furnace gas mixing pipeline is connected with a booster fan; one part of the booster fan is connected with a coke oven gas pipeline, one part of the coke oven gas pipeline is communicated with a boiler pipeline, one end of the boiler pipeline is connected with a boiler opening, a boiler opening main valve is arranged beside the boiler opening, and the other end of the coke oven gas pipeline is communicated with a furnace gas blending combustion mother pipe; according to the device, coke oven gas and other clean energy can be mixed for combustion, emission of harmful substances in fuel is reduced, the utilization rate of the coal gas is increased, the energy utilization efficiency is improved, the energy consumption cost is reduced, atmospheric pollution is reduced, and the environment is protected. And the structure is reliable, and the applicability is wide.

Description

Technical Field

[0001] This utility model belongs to the field of boiler gas supply and combustion devices, specifically a coke oven gas co-firing boiler device. Background Art

[0002] Coke oven gas is a highly efficient and high-calorific-value energy resource. However, in traditional processes, the gas contains high levels of pollutants. With the increase in coke oven gas production, there is now a significant surplus, necessitating the large-scale release of coke oven gas, which wastes resources and causes air pollution. This results in substantial energy waste and has a serious impact on the environment.

[0003] Therefore, there is an urgent need for a method that can utilize excess coal gas, mix coke oven gas with other clean energy sources for combustion, reduce the emission of harmful substances in the fuel, increase the utilization rate of coal gas, improve energy efficiency, reduce energy consumption costs, reduce air pollution, and protect the environment. Summary of the Invention

[0004] A coke oven gas co-firing boiler device can mix and burn coke oven gas with other clean energy sources, reducing the emission of harmful substances in the fuel, increasing the utilization rate of the gas, improving energy efficiency, reducing energy consumption costs, and reducing air pollution to protect the environment. It has a reliable structure and wide applicability.

[0005] This utility model discloses a coke oven gas blending boiler device, comprising a raw gas pipeline, wherein:

[0006] One end of the raw coal gas pipeline is connected to the first raw coal gas inlet and the second raw coal gas inlet in sequence. One end of the raw coal gas pipeline is connected to the clean coal gas pipeline. The other end of the clean coal gas pipeline is connected to the clean coal gas inlet. The other end of the raw coal gas pipeline is connected to the third raw coal gas inlet.

[0007] The middle section of the raw coal gas pipeline is connected to one end of the furnace gas mixing pipeline. The furnace gas mixing pipeline is sequentially connected to the non-condensable gas inlet of the stabilizing tower and the desorption gas inlet. The other end of the furnace gas mixing pipeline is connected to a booster fan. One part of the booster fan is connected to the coke oven gas pipeline. One part of the coke oven gas pipeline is connected to the boiler pipeline. One end of the boiler pipeline is connected to the fourth boiler inlet. A boiler inlet main valve is provided next to the fourth boiler inlet. The other end of the coke oven gas pipeline is connected to the furnace gas co-firing main pipeline.

[0008] At one end of the furnace gas co-firing main pipe, there are sequentially provided an electric main valve pre-vent valve, an electric main valve, an electric blind valve pre-vent valve, an electric blind valve, a pneumatic main valve pre-vent valve, and a pneumatic quick-closing main valve. The furnace gas co-firing main pipe has three openings near the pneumatic quick-closing main valve, which are respectively connected to the first boiler inlet, the second boiler inlet, and the third boiler inlet. A gas filter is installed on the side of the furnace gas co-firing main pipe near the third boiler inlet.

[0009] The tail end of the co-firing main pipe for furnace gas is sequentially equipped with a pneumatic regulating valve, a pneumatic quick-closing valve, and a flow meter for the co-firing burner, and the gas outlet of the co-firing main pipe for furnace gas is connected to the burner.

[0010] Preferably, the clean gas pipeline, the clean gas pipeline and the furnace gas mixing pipeline are provided with several sealed water tanks.

[0011] Preferably, the clean gas pipeline is equipped with a clean gas valve group near the clean gas inlet.

[0012] Preferably, the air filter is provided with an adjusting baffle.

[0013] Preferably, the furnace gas mixing pipeline is also equipped with a desuperheater.

[0014] Preferably, dust removal devices are installed on the first, second, and third raw coal gas inlets.

[0015] Preferably, the raw coal gas pipeline is arranged in a "C" shape.

[0016] Preferably, three burners are arranged on each side, with an installation height between 8.3 and 9.1 meters.

[0017] Preferably, two of the burners are installed on the fourth boiler inlet, and the remaining four are installed on the first boiler inlet, the second boiler inlet, and the third boiler inlet, respectively.

[0018] The beneficial effects of this utility model are as follows: This utility model discloses a coke oven gas co-firing boiler device. This device, by using a mixture of raw and purified coke oven gas, recovers the released coke oven gas and returns it to the burner for co-firing. Through this co-firing device, the utilization rate of the gas can be increased, energy efficiency can be improved, and energy consumption costs can be reduced. Promoting the use of coke oven gas co-firing boiler devices helps reduce dependence on traditional fossil fuels, promotes the development and utilization of clean energy, and greatly enhances its practical value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a coke oven gas co-firing boiler device according to the present invention.

[0020] In the diagram: 1. Raw coal gas pipeline; 2. First raw coal gas inlet; 3. Second raw coal gas inlet; 4. Clean coal gas pipeline; 5. Clean coal gas inlet; 6. Third raw coal gas inlet; 7. Furnace gas mixing pipeline; 8. Stabilizer tower non-condensable gas inlet; 9. Desorption gas inlet; 10. Boiler blower; 11. Coke oven gas pipeline; 12. Boiler pipeline; 13. Fourth boiler inlet; 14. Boiler inlet main valve; 30. Sealing water tank; 15. Furnace gas co-firing main pipe; 16. Electric main valve vent valve; 17. Electric blind valve vent valve; 18. Electric blind valve; 19. Pneumatic main valve vent valve; 20. Pneumatic quick-closing main valve; 21. First boiler inlet; 22. Second boiler inlet; 23. Third boiler inlet; 24. Gas filter; 25. Pneumatic regulating valve for co-firing burner; 26. Pneumatic quick-closing valve; 27. Flow meter; 28. Burner; 29. ​​Sealing water tank; 30. Clean coal gas valve group; 31. Desuperheater; 32. Detailed Implementation

[0021] To make the technical solution of this utility model easier to understand, the technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings and specific embodiments.

[0022] Example 1:

[0023] like Figure 1 As shown in this embodiment Figure 1 The present invention relates to a coke oven gas blending boiler device, comprising a raw coal gas pipeline 1, wherein:

[0024] One end of the raw coal gas pipeline 1 is connected to the first raw coal gas inlet 2 and the second raw coal gas inlet 3 in sequence. One end of the raw coal gas pipeline 1 is connected to the clean coal gas pipeline 4. The other end of the clean coal gas pipeline 4 is connected to the clean coal gas inlet 5. The other end of the raw coal gas pipeline 1 is connected to the third raw coal gas inlet 6.

[0025] The middle section of the raw coal gas pipeline 1 is connected to one end of the furnace gas mixing pipeline 7. The furnace gas mixing pipeline 7 is sequentially connected to the non-condensable gas inlet 8 of the stabilizing tower and the desorption gas inlet 9. The other end of the furnace gas mixing pipeline 7 is connected to the booster fan 10. One part of the booster fan 10 is connected to the coke oven gas pipeline 11. One part of the coke oven gas pipeline 11 is connected to the boiler pipeline 12. One end of the boiler pipeline 12 is connected to the fourth boiler inlet 13. A boiler inlet main valve 14 is provided next to the fourth boiler inlet 13. The other end of the coke oven gas pipeline 11 is connected to the furnace gas co-firing main pipeline 15.

[0026] At one end of the furnace gas co-firing main pipe 15, there are sequentially provided electric main valve vent valve 16, electric main valve 17, electric blind valve vent valve 18, electric blind valve 19, pneumatic main valve vent valve 20 and pneumatic quick-closing main valve 21. The furnace gas co-firing main pipe 15 has three openings on the side near the pneumatic quick-closing main valve 21, which are respectively connected to the first boiler inlet 22, the second boiler inlet 23 and the third boiler inlet 24. A gas filter 25 is installed on the side of the furnace gas co-firing main pipe 15 near the third boiler inlet 24.

[0027] The tail end of the co-firing main pipe 15 is sequentially equipped with a co-firing burner pneumatic regulating valve 26, a pneumatic quick-closing valve 27, and a flow meter 28, and the gas outlet of the co-firing main pipe 15 is connected to the burner 29.

[0028] Several sealed water tanks 30 are provided on the clean gas pipeline 4, the clean gas pipeline 4 and the furnace gas mixing pipeline 7.

[0029] The clean gas pipeline 4 is equipped with a clean gas valve group 31 near the clean gas inlet 5.

[0030] The air filter 25 is equipped with an adjustment baffle.

[0031] The furnace gas mixing pipeline 7 is also equipped with a desuperheater 32.

[0032] Dust removal devices are installed on the first raw coal gas inlet 2, the second raw coal gas inlet 3, and the third raw coal gas inlet 6.

[0033] The raw coal gas pipeline 1 is laid out in a "C" shape.

[0034] The number of burners 29 is six, and the installation height is between 8.3 and 9.1 meters.

[0035] Two of the burners 29 are installed on the fourth boiler inlet 13, and the remaining four are installed on the first boiler inlet 22, the second boiler inlet 23 and the third boiler inlet 24 respectively.

[0036] When this device is in use, when raw coal gas is generated at the first raw coal gas inlet 2, the second raw coal gas inlet 3, and the third raw coal gas inlet 6, it is mixed with the clean coal gas in the raw coal gas pipeline 1 and the clean coal gas pipeline 4. The gas then enters the booster fan 10 through the furnace gas mixing pipeline 7 for pressurization. A portion of the gas is diverted into the boiler pipeline 12 and then into the fourth boiler port 13 for co-firing. The remaining gas then enters the coke oven gas pipeline 11 and then into the furnace gas co-firing header 15. The gas then enters the burner 29 for combustion through the first boiler port 22, the second boiler port 23, and the third boiler port 24 connected to the furnace gas co-firing header 15. The last portion of the gas enters the burner 29 for combustion. The gas flow rate can be controlled by various valves. When some boilers do not need gas, the boiler port valves can be closed.

[0037] It should be noted that the embodiments described herein are only some embodiments of this utility model, and not all implementations of this utility model. These embodiments are merely illustrative and are intended only to provide a more intuitive and clear way of understanding the content of this utility model, not to limit the technical solutions described herein. All other implementation methods that can be conceived by those skilled in the art without creative effort, as well as other simple substitutions and variations of the technical solutions of this utility model, without departing from the concept of this utility model, are within the protection scope of this utility model.

Claims

1. A coke oven gas mixed combustion boiler device, characterized in that: It includes a raw gas pipeline (1), wherein: One end of the crude gas pipeline (1) is connected to the first crude gas inlet (2) and the second crude gas inlet (3) in sequence, one end of the crude gas pipeline (1) is connected to the clean gas pipeline (4), the other end of the clean gas pipeline (4) is connected to the clean gas inlet (5), and the other end of the crude gas pipeline (1) is connected to the third crude gas inlet (6); The middle section of the raw gas pipeline (1) is connected to one end of a furnace gas mixing pipeline (7), the furnace gas mixing pipeline (7) is connected to the non-condensable gas port (8) of the stabilization tower and the analytical gas port (9) in sequence, the other end of the furnace gas mixing pipeline (7) is connected to a booster fan (10), one point of the booster fan (10) is connected to a coke oven gas pipeline (11), one point of the coke oven gas pipeline (11) is connected to a boiler pipeline (12), one end of the boiler pipeline (12) is connected to a fourth boiler port (13), a boiler port main valve (14) is provided next to the fourth boiler port (13), and the other end of the coke oven gas pipeline (11) is connected to a furnace gas blending mother pipe (15); An electric main valve front relief valve (16), an electric main valve (17), an electric blind plate valve front relief valve (18), an electric blind plate valve (19), a pneumatic main valve front relief valve (20) and a pneumatic quick-closing main valve (21) are sequentially arranged at one end of the furnace gas blending main pipe (15); three openings are arranged on one side of the furnace gas blending main pipe (15) close to the pneumatic quick-closing main valve (21), respectively communicating with a first boiler port (22), a second boiler port (23) and a third boiler port (24); and a gas filter (25) is installed on one side of the furnace gas blending main pipe (15) close to the third boiler port (24); The tail end of the furnace gas blending main pipe (15) is sequentially installed with a blending burner pneumatic regulating valve (26), a pneumatic quick closing valve (27) and a flow meter (28), and the gas outlet of the furnace gas blending main pipe (15) is connected to a burner (29).

2. A coke oven gas mixed combustion boiler device as claimed in claim 1, characterized in that: A plurality of sealed water tanks (30) are provided on the clean coal gas pipeline (4), the clean coal gas pipeline (4) and the furnace gas mixed pipeline (7).

3. A coke oven gas mixed combustion boiler device as claimed in claim 1, characterized in that: The clean gas pipeline (4) is provided with a clean gas valve group (31) near the clean gas inlet (5).

4. A coke oven gas mixed combustion boiler device as claimed in claim 1, characterized in that: The air filter (25) is provided with an adjustment baffle.

5. A coke oven gas mixed combustion boiler device as claimed in claim 1, characterized in that: The furnace gas mixing pipeline (7) is also provided with a desuperheater (32).

6. A coke oven gas mixed combustion boiler device as claimed in claim 1, characterized in that: The first raw coal gas inlet (2), the second raw coal gas inlet (3) and the third raw coal gas inlet (6) are provided with dust removal devices.

7. A coke oven gas mixed combustion boiler device as claimed in claim 1, characterized in that: The raw gas pipeline (1) is arranged in a "C" shape.

8. The coke oven gas mixed combustion boiler device according to claim 1, characterized in that: The burners (29) are arranged in six numbers and are installed at a height between 8.3 and 9.1 meters.

9. A coke oven gas mixed combustion boiler device as claimed in claim 1, characterized in that: Two of the burners (29) are installed on the fourth boiler port (13), and the remaining four are installed on the first boiler port (22), the second boiler port (23) and the third boiler port (24) respectively.

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