Dry quenching recycle gas recycling device

Abstract

The utility model belongs to the technical field of coke dry quenching process, and particularly discloses a coke dry quenching circulating gas recycling device which comprises a waste heat boiler, a water tank is arranged on one side of the waste heat boiler, a water conveying pipe and a water pumping pipe are arranged at the top end of the water tank, and a condensation plate is fixedly connected to the end, away from the water tank, of the water conveying pipe. A plurality of conical holes are formed in the condensation plate, an inner pipe is arranged in the condensation plate, a plurality of spraying pipes are fixedly installed at the bottom end of the condensation plate, a plurality of spraying heads are arranged at the bottom ends of the spraying pipes, a filtering plate is fixedly installed in the waste heat boiler, and a recycling plate is arranged at the bottom end of the waste heat boiler. By means of the spraying mechanism, entering high-temperature circulating gas can be cooled, energy efficiency can be improved, environmental pollution can be reduced, water generated by spraying and condensation can be recycled after being filtered while the circulating gas is recycled, and water resources are greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of coke dry quenching process, and particularly relates to a device for recycling dry quenching circulating gas. Background Art

[0002] The coke dry quenching process refers to a coke quenching process method that uses inert gas to cool down the red-hot coke, and the dry quenching circulating gas refers to a gas that is recycled by using inert gas during the coke dry quenching process. The use of the dry quenching circulating gas not only helps with energy conservation and environmental protection, but also is superior to wet coke quenching in terms of energy conservation, environmental protection, and improving coke quality.

[0003] In the current production of the coke dry quenching process, a large amount of steam is generated for steam turbine power generation. After the steam condenses to produce too much water, it will not only affect the quality of the steam, but also seriously affect the safety of the waste heat boiler. Therefore, the current circulating gas recycling device cannot make good use of the water generated by the steam. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a device for recycling dry quenching circulating gas is proposed.

[0005] To achieve the above purpose, the utility model provides a device for recycling dry quenching circulating gas, including a waste heat boiler. A water tank is arranged on one side of the waste heat boiler. A water delivery pipe and a water extraction pipe are arranged at the top of the water tank. The end of the water delivery pipe far away from the water tank is fixedly connected with a spraying mechanism. The spraying mechanism includes a condensation plate fixedly connected to one end of the water delivery pipe. A plurality of conical holes are arranged inside the condensation plate. An inner pipe is arranged inside the condensation plate. A plurality of spraying pipes are fixedly installed at the bottom end of the condensation plate. A plurality of spray heads are arranged at the bottom end of the spraying pipes. A filter plate is fixedly installed inside the waste heat boiler. A recovery plate is arranged at the bottom end of the waste heat boiler. The recovery plate is connected to the water tank through the water extraction pipe.

[0006] In the above technical solution, further, an exhaust gas inlet is arranged on one side of the top of the waste heat boiler, a circulating gas outlet is arranged on one side of the bottom of the waste heat boiler, and a steam outlet is arranged at the top of the waste heat boiler.

[0007] In the above technical solution, further, the exhaust gas inlet and the circulating gas outlet are located on the same side of the surface of the waste heat boiler, and the exhaust gas inlet and the circulating gas outlet are respectively located above and below the filter plate inside the waste heat boiler.

[0008] In the above technical solution, further, a driving motor is fixedly installed at the top end of the condensation plate, and the output end of the driving motor is fixedly connected with a fan, and the fan is located directly below the steam outlet.

[0009] In the above technical solution, further, the condensation plate is located above the filter plate, and the recovery plate is located below the filter plate.

[0010] In the above technical solution, further, the inner pipe is connected to the water delivery pipe, and the inner pipe is connected to the spray pipe.

[0011] Compared with the prior art, the present utility model has the following beneficial effects:

[0012] 1. Through the spray mechanism, not only can the incoming high-temperature circulating gas be cooled, improving energy efficiency and reducing environmental pollution, but also while utilizing the recycling of the circulating gas, the water generated by spraying and condensation can be filtered and then recycled, greatly reducing water resources.

[0013] 2. Through the filter plate, not only can the circulating gas be purified to ensure the stable operation of the coke dry quenching process, but also the water generated by spraying and steam can be filtered to ensure the purity of the water for reuse, realizing the function of water circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. is a schematic diagram of the overall structure of a coke dry quenching circulating gas recovery and utilization device proposed by the present utility model;

[0015] Figure 2 FIG. is a schematic diagram of the internal structure of a coke dry quenching circulating gas recovery and utilization device proposed by the present utility model;

[0016] Figure 3 FIG. is a schematic diagram of the structure of a spray mechanism in a coke dry quenching circulating gas recovery and utilization device proposed by the present utility model;

[0017] Figure 4 FIG. is a cross-sectional view of the overall structure of a coke dry quenching circulating gas recovery and utilization device proposed by the present utility model.

[0018] In the figure: 1. Waste heat boiler; 2. Exhaust gas inlet; 3. Circulating gas outlet; 4. Steam outlet; 5. Water tank; 6. Water delivery pipe; 7. Water extraction pipe; 8. Condensation plate; 9. Inner pipe; 10. Driving motor; 11. Fan; 12. Spray pipe; 13. Spray head; 14. Conical hole; 15. Filter plate; 16. Recovery plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Such as Figure 1 -Figure 4 A coke dry quenching circulating gas recycling device shown in the figure includes a waste heat boiler 1. One side of the waste heat boiler 1 is provided with a water tank 5. The top of the water tank 5 is provided with a water delivery pipe 6 and a water extraction pipe 7. The end of the water delivery pipe 6 away from the water tank 5 is fixedly connected with a spraying mechanism. The spraying mechanism includes a condensation plate 8 fixedly connected to one end of the water delivery pipe 6. A plurality of conical holes 14 are arranged inside the condensation plate 8. The steam passing through the conical holes 14 will come into contact with the conical holes 14 and condense into water droplets under the action of cold water, and then these water droplets are filtered by a filter plate 15, so that they can be recycled and reused, saving water resources.

[0021] An inner pipe 9 is arranged inside the condensation plate 8. A plurality of spraying pipes 12 are fixedly installed at the bottom end of the condensation plate 8. A plurality of spray heads 13 are arranged at the bottom end of the spraying pipes 12. A filter plate 15 is fixedly installed inside the waste heat boiler 1. A recovery plate 16 is arranged at the bottom end of the waste heat boiler 1. The recovery plate 16 is connected to the water tank 5 through the water extraction pipe 7. The spraying mechanism can not only cool the high-temperature circulating gas, but also remove the soot brought by the circulating gas, and the filter plate 15 further blocks the soot, improving the purity of the circulating gas.

[0022] One side of the top end of the waste heat boiler 1 is provided with an exhaust gas inlet 2. A dust collector is installed at the front end of the exhaust gas inlet 2 to perform the first-step dust removal work on the circulating gas. One side of the bottom end of the waste heat boiler 1 is provided with a circulating gas outlet 3. A circulating fan is installed at the circulating gas outlet 3, which can input the filtered circulating gas into the coke dry quenching furnace again. A steam outlet 4 is arranged at the top end of the waste heat boiler 1.

[0023] The exhaust gas inlet 2 and the circulating gas outlet 3 are located on the same side of the surface of the waste heat boiler 1. The exhaust gas inlet 2 and the circulating gas outlet 3 are respectively located above and below the filter plate 15 inside the waste heat boiler 1. The filter plate 15 is located between the inlet and the outlet, which can ensure that the circulating gas re-enters the coke dry quenching furnace without soot, and purifying the circulating gas can effectively ensure the stable operation of the coke dry quenching process.

[0024] A driving motor 10 is fixedly installed at the top end of the condensation plate 8. The output end of the driving motor 10 is fixedly connected with a fan 11. The fan 11 is located directly below the steam outlet 4. The fan 11 can not only send the steam to the steam turbine, but also ensure the air circulation inside the waste heat boiler 1, so that the high-temperature circulating gas can be cooled more quickly, and ensure that the low-temperature circulating gas can absorb the sensible heat of the red coke and promote the cooling of the coke.

[0025] The condensation plate 8 is located above the filter plate 15, and the recovery plate 16 is located below the filter plate 15. After the filter plate 15 filters the water, it will fall onto the recovery plate 16. The recovery plate 16 is inclined in the waste heat boiler 1, and the bottom end is just connected to the water extraction pipe 7, so as to achieve the function of water circulation and greatly save water resources.

[0026] The inner pipe 9 is connected to the water delivery pipe 6 and the spray pipe 12. The inner pipe 9 is arranged throughout the inside of the condensation plate 8 and contacts multiple tapered holes 14. When steam passes through, it will condense into water droplets and drip. After filtration, the water generated by the steam can be recycled and reused.

[0027] Working principle: First, the circulating gas with soot is introduced into the waste heat boiler 1. Before being introduced, it will first pass through the dust collector for the first-step treatment. Subsequently, after entering, it will be further dust-removed by the spray mechanism, and at the same time, the circulating gas can be cooled. The water with soot will return to the water tank 5 through the filter plate 15, and the soot will be isolated above the filter plate 15. A large amount of steam is generated by the reaction between the low-temperature water sprayed by the spray and the high-temperature circulating gas. The steam will be discharged from the steam outlet 4 under the action of the fan 11 and used for steam turbine power generation. The cooled circulating gas will also pass through the filter plate 15 to the lower part of the waste heat boiler 1. Under the suction of the circulating fan, the cooled and purified circulating gas will be re-introduced into the coke dry quenching furnace. In the whole process, not only can the circulation of inert gas be realized, playing a role in energy conservation, environmental protection and improving the quality of coke, but also the water circulation can be realized, greatly reducing the waste of water resources.

[0028] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A device for recycling dry quenching coke circulating gas, including a waste heat boiler (1), characterized in that, On one side of the waste heat boiler (1), there is a water tank (5). At the top of the water tank (5), there are a water delivery pipe (6) and a water extraction pipe (7). One end of the water delivery pipe (6) far from the water tank (5) is fixedly connected to a spraying mechanism. The spraying mechanism includes a condensation plate (8) fixedly connected to one end of the water delivery pipe (6). Inside the condensation plate (8), there are a plurality of conical holes (14). Inside the condensation plate (8), there is an inner pipe (9). At the bottom end of the condensation plate (8), a plurality of spraying pipes (12) are fixedly installed. At the bottom end of the spraying pipes (12), there are a plurality of spray heads (13). Inside the waste heat boiler (1), a filter plate (15) is fixedly installed. At the bottom end of the waste heat boiler (1), there is a recovery plate (16). The recovery plate (16) is connected to the water tank (5) through the water extraction pipe (7).

2. The coke dry quenching circulating gas recovery and utilization device according to claim 1, characterized in that, On one side of the top end of the waste heat boiler (1), there is an exhaust gas inlet (2). On one side of the bottom end of the waste heat boiler (1), there is a circulating gas outlet (3). At the top end of the waste heat boiler (1), there is a steam outlet (4).

3. The coke dry quenching circulating gas recycling device according to claim 2, characterized in that, The exhaust gas inlet (2) and the circulating gas outlet (3) are on the same side of the surface of the waste heat boiler (1). Inside the waste heat boiler (1), the exhaust gas inlet (2) and the circulating gas outlet (3) are respectively above and below the filter plate (15).

4. A coke dry quenching circulating gas recycling device according to claim 2, characterized in that, At the top end of the condensation plate (8), a driving motor (10) is fixedly installed. The output end of the driving motor (10) is fixedly connected to a fan (11). The fan (11) is directly below the steam outlet (4).

5. The coke dry quenching circulating gas recovery and utilization device according to claim 1, characterized in that, The condensation plate (8) is above the filter plate (15), and the recovery plate (16) is below the filter plate (15).

6. The coke dry quenching circulating gas recycling device according to claim 1, wherein, The inner pipe (9) is connected to the water delivery pipe (6), and the inner pipe (9) is connected to the spraying pipes (12).

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