Cement kiln tail gas denitration device

Abstract

The utility model relates to cement kiln technical field discloses a kind of cement kiln tail gas denitration device of waste gas, including bottom plate, the top right side of the bottom plate is fixedly connected with first motor, the output end of the first motor is fixedly connected with first rotating round bar, the outer wall of the first rotating round bar is rotatably connected with first hollow cylinder, the top end of the first rotating round bar is fixedly connected with spray head, the top end of the spray head is connected with first water pipe, the outer wall of the spray head is rotatably connected with first gear, the outer wall of the first gear is engagedly connected with multiple second gears, the outer wall of multiple second gears is engagedly connected with gear sleeve. In the utility model, when waste gas enters first hollow cylinder, first motor is started to drive first rotating round bar to make spray head open rotation, drive first gear to start rotating, so as to drive second gear to start rotating, make second gear rotate on the outer wall of first gear, reach the effect of cleaning device.

Description

Technical Field

[0001] This utility model relates to the field of cement kiln technology, and in particular to a denitrification device for cement kiln tail gas. Background Technology

[0002] Cement kilns are key pieces of equipment in the cement production process, mainly used for calcining cement clinker. The kiln tail connects the pre-decomposition system and the rotary kiln in the cement production process, and has a significant impact on the output, quality, and energy consumption of cement production. Kiln tail exhaust gas is a mixture of high-temperature flue gas generated by fuel combustion and material decomposition reactions in the rotary kiln and pre-decomposition system during cement production, discharged through the kiln tail flue. It is one of the main sources of pollution in the cement industry, but it also contains recoverable heat energy. Its treatment and resource utilization are core aspects of environmental protection and energy conservation work in cement enterprises.

[0003] The denitrification device for cement kiln tail gas is an important maintenance measure to ensure the efficient and stable operation of the denitrification system through the internal wall cleaning device. At present, most cement kiln tail gas denitrification devices cannot perform internal wall cleaning, which leads to the continuous accumulation of ash, scale and blockage. This has a multi-dimensional negative impact on the performance, energy consumption, equipment life and environmental compliance of the denitrification system, resulting in increased operating costs and environmental risks, and also threatening the continuity and safety of production. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a cement kiln tail gas denitrification device, which aims to improve the multi-dimensional negative impacts of the existing technology on the performance, energy consumption, equipment life and environmental compliance of the denitrification system, resulting in increased operating costs and environmental risks, and also threatening the continuity and safety of production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a denitrification device for cement kiln tail gas, comprising a base plate, a first motor fixedly connected to the top right side of the base plate, a first rotating rod fixedly connected to the output end of the first motor, a first hollow cylinder rotatably connected to the outer wall of the first rotating rod, a nozzle fixedly connected to the top of the first rotating rod, a first water pipe connected to the top of the nozzle, a first gear rotatably connected to the outer wall of the nozzle, multiple second gears meshing with the outer wall of the first gear, gear sleeves meshing with the outer walls of the multiple second gears, a fixed rod fixedly connected to the bottom of the second gear, multiple scrapers fixedly connected to the outer wall of each fixed rod, a water pump fixedly connected to the top of the first hollow cylinder, a first water tank connected to the right side of the first water pipe, and a separation mechanism fixedly connected to the top left side of the base plate, the separation mechanism being used for solid-liquid separation.

[0006] As a further description of the above technical solution: The separation mechanism includes a second motor, the bottom of which is fixedly connected to the top left side of the base plate. A second rotating rod is fixedly connected to the output end of the second motor. A filter tube is fixedly connected to the top of the second rotating rod. A second hollow cylinder is fixedly connected to the outer wall of the second rotating rod. A water outlet pipe is connected to the top of the second hollow cylinder. A switch door is rotatably connected to the front end of the second hollow cylinder. A second water pipe is fixedly connected to the left side of the water outlet pipe. A second water tank is connected to the left side of the second water pipe.

[0007] As a further description of the above technical solution: A protective sleeve is fixedly connected to the outer wall of the first hollow cylinder, and an observation port is fixedly connected to the front end of the outer wall of the first hollow cylinder.

[0008] As a further description of the above technical solution: An exhaust pipe is fixedly connected to the right side of the outer wall of the first hollow cylinder, and a switch valve is fixedly connected to the outer wall of the exhaust pipe.

[0009] As a further description of the above technical solution: The bottom end of the first hollow cylinder is fixedly connected to a first support rod, and the top of the base plate is provided with a mounting hole.

[0010] As a further description of the above technical solution: The outer wall of the first support rod has heat dissipation holes, and a controller is fixedly connected to the outer wall of the first support rod.

[0011] As a further description of the above technical solution: A second support rod is fixedly connected to the bottom end of the second hollow cylinder, and a cover plate is fixedly connected to the top of the filter tube.

[0012] As a further description of the above technical solution: A pressure gauge is fixedly connected to the front end of the first water tank, and the top of the nozzle is connected to the bottom of the first water pipe.

[0013] This utility model has the following beneficial effects: In this invention, when exhaust gas enters the first hollow cylinder, the first motor is activated to drive the first rotating rod to rotate the nozzle, which in turn drives the first gear to rotate, thereby driving the second gear to rotate. The second gear rotates on the outer wall of the first gear, which in turn drives the fixed rod to rotate. When the first water pipe is activated, the water in the first water tank begins to spray water onto the nozzle and thus onto the inner wall of the first hollow cylinder, thereby achieving equipment cleaning.

[0014] In this invention, the solid and liquid enter the second hollow cylinder through the water outlet pipe. When the second motor is started, it drives the second rotating rod, causing the filter tube to start rotating. The liquid begins to pass through the filter tube and is filtered in the second hollow cylinder. Then, it enters the second water tank for storage through the second water pipe. The solid remains in the filter tube, achieving the effect of solid-liquid separation. Attached Figure Description

[0015] Figure 1 This is a front perspective view of a cement kiln tail gas denitrification device proposed in this utility model. Figure 2 This is a top view of a cement kiln tail gas denitrification device proposed in this utility model; Figure 3 This is a partial structural diagram of the first motor of a cement kiln tail gas denitrification device proposed in this utility model. Figure 4 This is a partial structural diagram of the first gear of a cement kiln tail gas denitrification device proposed in this utility model. Figure 5 This is a partial structural diagram of the second hollow cylinder of a cement kiln tail gas denitrification device proposed in this utility model; Figure 6 This is a partial structural diagram of the second motor of a cement kiln tail gas denitrification device proposed in this utility model.

[0016] Legend: 1. Base plate; 2. Separation mechanism; 201. Second motor; 202. Second rotating rod; 203. Filter tube; 204. Water outlet pipe; 205. Switch door; 206. Second hollow cylinder; 207. Second water pipe; 208. Second water tank; 3. First motor; 4. First rotating rod; 5. Nozzle; 6. First gear; 7. Second gear; 8. Gear sleeve; 9. Fixing rod; 10. Scraper; 11. First water pipe; 12. First water tank; 13. Water pump; 14. First hollow cylinder; 15. Exhaust gas pipe; 16. Switch valve; 17. Observation port; 18. First support rod; 19. Heat dissipation hole; 20. Controller; 21. Pressure gauge; 22. Second support rod; 23. Cover plate; 24. Protective sleeve; 25. Mounting hole. Detailed Implementation

[0017] 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.

[0018] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 4 An embodiment of this utility model provides a denitrification device for cement kiln tail gas, comprising a base plate 1, a first motor 3 fixedly connected to the top right side of the base plate 1, a first rotating rod 4 fixedly connected to the output end of the first motor 3, a first hollow cylinder 14 rotatably connected to the outer wall of the first rotating rod 4, a nozzle 5 fixedly connected to the top of the first rotating rod 4, a first water pipe 11 connected to the top of the nozzle 5, a first gear 6 rotatably connected to the outer wall of the nozzle 5, multiple second gears 7 meshing with the outer wall of the first gear 6, gear sleeves 8 meshing with the outer walls of the multiple second gears 7, a fixed rod 9 fixedly connected to the bottom of the second gear 7, multiple scrapers 10 fixedly connected to the outer wall of the fixed rod 9, a water pump 13 fixedly connected to the top of the first hollow cylinder 14, a first water tank 12 connected to the right side of the first water pipe 11, and a separation mechanism 2 fixedly connected to the top left side of the base plate 1, the separation mechanism 2 being used for solid-liquid separation; Specifically, the base plate 1 is used to support the device, the first motor 3 is used to start the device, the first rotating rod 4 is used to drive the device to rotate, the nozzle 5 is used to spray water, the first water pipe 11 is used to connect water, the first gear 6 is used to drive the second gear 7, the second gear 7 is used to drive the fixed rod 9 to rotate, the gear sleeve 8 is used to drive the second gear 7 to rotate, the scraper 10 is used to scrape the inner wall of the first hollow cylinder 14, the water pump 13 is used to start the water pump 13, and the first water tank 12 is used to carry water.

[0019] Please see the appendix Figure 1 Appendix Figure 5 and attached Figure 6 The separation mechanism 2 includes a second motor 201. The bottom of the second motor 201 is fixedly connected to the top left side of the base plate 1. The output end of the second motor 201 is fixedly connected to a second rotating rod 202. The top end of the second rotating rod 202 is fixedly connected to a filter tube 203. The outer wall of the second rotating rod 202 is fixedly connected to a second hollow cylinder 206. The top of the second hollow cylinder 206 is connected to a water outlet pipe 204. The front end of the second hollow cylinder 206 is rotatably connected to a switch door 205. The left side of the water outlet pipe 204 is fixedly connected to a second water pipe 207. The left side of the second water pipe 207 is connected to a second water tank 208. Specifically, the second motor 201 is used to drive the device, the second rotating rod 202 is used to drive the device to rotate, the filter tube 203 is used to filter solid-liquid separation, the second hollow cylinder 206 is used to support solid and liquid, the switch door 205 is used to open the inner wall of the second hollow cylinder 206, the second water pipe 207 is used for liquid transmission, and the second water tank 208 is used to support liquid.

[0020] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4An exhaust pipe 15 is fixedly connected to the right side of the outer wall of the first hollow cylinder 14. A switch valve 16 is fixedly connected to the outer wall of the exhaust pipe 15. A protective sleeve 24 is fixedly connected to the outer wall of the first hollow cylinder 14. An observation port 17 is fixedly connected to the front end of the outer wall of the first hollow cylinder 14. A first support rod 18 is fixedly connected to the bottom end of the first hollow cylinder 14. An installation hole 25 is opened on the top of the base plate 1. Specifically, the exhaust pipe 15 is used to support the exhaust gas, the switch valve 16 is used to prevent the exhaust gas from flowing back, the protective sleeve 24 is used to protect the first hollow cylinder 14, the observation port 17 is used to observe the internal condition of the first hollow cylinder 14, the first support rod 18 is used to support the first hollow cylinder 14, and the mounting hole 25 is used to install the equipment.

[0021] Appendix Figure 1 Appendix Figure 3 and attached Figure 5 A pressure gauge 21 is fixedly connected to the front end of the first water tank 12. The top of the nozzle 5 is connected to the bottom of the first water pipe 11. A heat dissipation hole 19 is opened on the outer wall of the first support rod 18. A controller 20 is fixedly connected to the outer wall of the first support rod 18. A second support rod 22 is fixedly connected to the bottom end of the second hollow cylinder 206. A cover plate 23 is fixedly connected to the top of the filter pipe 203. Specifically, pressure gauge 21 is used to observe the condition inside the first water tank 12, heat dissipation hole 19 is used for motor heat dissipation, controller 20 is used to control the motor, second support rod 22 is used to support the second hollow cylinder 206, and cover plate 23 is used to limit the solid and liquid inside the filter tube 203 to prevent solids from scattering.

[0022] Working principle: When the exhaust gas enters the first hollow cylinder 14, after the reaction is completed, the first motor 3 is started, which drives the first rotating rod 4 to make the nozzle 5 rotate, which in turn drives the first gear 6 to rotate, thereby driving the second gear 7 to rotate. Because the outer wall of the second gear 7 has a gear sleeve 8, the second gear 7 will rotate on the outer wall of the first gear 6, thereby driving the fixed rod 9 to rotate, which in turn drives the scraper 10 to start rotating against the inner wall of the first hollow cylinder 14. When the first water pipe 11 is turned on, the water in the first water tank 12 starts to spray water onto the nozzle 5 and thus onto the inner wall of the first hollow cylinder 14, thereby achieving equipment cleaning.

[0023] After the exhaust gas is treated, the solid and liquid components enter the second hollow cylinder 206 through the water outlet pipe 204 and then enter the filter tube 203. When the second motor 201 is started, it drives the second rotating rod 202, which in turn drives the filter tube 203, causing the filter tube 203 to start rotating. This causes the solid and liquid components inside the filter tube 203 to begin separating. The liquid begins to pass through the filter tube 203 and is filtered in the second hollow cylinder 206. It then enters the second water tank 208 through the second water pipe 207 for storage. The solid components remain in the filter tube 203, achieving the effect of solid-liquid separation.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A denitrification device for waste gas from a cement kiln tail, comprising a bottom plate (1), characterized in that: A first motor (3) is fixedly connected to the top right side of the base plate (1). A first rotating rod (4) is fixedly connected to the output end of the first motor (3). A first hollow cylinder (14) is rotatably connected to the outer wall of the first rotating rod (4). A nozzle (5) is fixedly connected to the top of the first rotating rod (4). A first water pipe (11) is connected to the top of the nozzle (5). A first gear (6) is rotatably connected to the outer wall of the nozzle (5). Multiple second gears (7) are meshed with the outer wall of the first gear (6). Gear sleeves (8) are meshed with the outer walls of the multiple second gears (7). A fixing rod (9) is fixedly connected to the bottom of the second gear (7). Multiple scrapers (10) are fixedly connected to the outer wall of the fixing rod (9). A water pump (13) is fixedly connected to the top of the first hollow cylinder (14). A first water tank (12) is connected to the right side of the first water pipe (11). A separation mechanism (2) is fixedly connected to the top left side of the base plate (1). The separation mechanism (2) is used for solid-liquid separation.

2. The denitrification device for cement kiln tail gas according to claim 1, characterized in that: The separation mechanism (2) includes a second motor (201), the bottom of which is fixedly connected to the top left side of the base plate (1), the output end of which is fixedly connected to a second rotating rod (202), the top end of which is fixedly connected to a filter tube (203), the outer wall of which is fixedly connected to a second hollow cylinder (206), the top of which is connected to a water outlet pipe (204), the front end of which is rotatably connected to a switch door (205), the left side of which is fixedly connected to a second water pipe (207), and the left side of which is connected to a second water tank (208).

3. The denitrification device for cement kiln tail gas according to claim 1, characterized in that: A protective sleeve (24) is fixedly connected to the outer wall of the first hollow cylinder (14), and an observation port (17) is fixedly connected to the front end of the outer wall of the first hollow cylinder (14).

4. The denitrification device for cement kiln tail gas according to claim 1, characterized in that: An exhaust pipe (15) is fixedly connected to the right side of the outer wall of the first hollow cylinder (14), and a switch valve (16) is fixedly connected to the outer wall of the exhaust pipe (15).

5. The denitrification device for cement kiln tail gas according to claim 1, characterized in that: The bottom end of the first hollow cylinder (14) is fixedly connected to a first support rod (18), and the top of the base plate (1) is provided with an installation hole (25).

6. The denitrification device for cement kiln tail gas according to claim 5, characterized in that: The outer wall of the first support rod (18) is provided with heat dissipation holes (19), and a controller (20) is fixedly connected to the outer wall of the first support rod (18).

7. The denitrification device for cement kiln tail gas according to claim 2, characterized in that: The bottom end of the second hollow cylinder (206) is fixedly connected to a second support rod (22), and the top of the filter tube (203) is fixedly connected to a cover plate (23).

8. The denitrification device for cement kiln tail gas according to claim 1, characterized in that: A pressure gauge (21) is fixedly connected to the front end of the first water tank (12), and the top of the nozzle (5) is connected to the bottom of the first water pipe (11).

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