Environment-friendly treatment device for coal-fired flue gas

Abstract

The utility model discloses a coal-fired flue gas environment-friendly treatment device, which belongs to the technical field of flue gas treatment and is characterized in that an air draft device is connected with a connecting interface through a connecting cover and is connected with a coal-fired flue gas pipeline through the connecting interface; a through groove is formed in the connecting cover, a discharging cover is arranged at the groove bottom of the through groove, the lower end of the discharging cover is connected with a discharging opening, a limiting pipe is arranged at a cover opening of the discharging cover, an inclined supporting plate and an inclined filter screen are installed at the connecting cover and the limiting pipe, smoke particles are intercepted and slide to the discharging opening to be discharged, the treatment efficiency is improved, and timely collection is ensured; and secondary pollution is prevented. An inclined supporting plate and a limiting block are integrally designed, so that the stability of the device is enhanced, the filter screen is kept stable under the impact of flue gas and particulate matters, and the service life is prolonged. The flue gas treatment process is optimized through the inclination angle design, the efficiency is improved, and the maintenance cost is reduced. The inclined supporting plate and the filter screen are easy and convenient to mount and dismount and convenient to clean and maintain, and continuous and efficient operation of equipment is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to flue gas treatment technical field, especially a kind of coal-fired flue gas environmental protection treatment device. BACKGROUND

[0002] Coal-fired flue gas environmental protection treatment device mainly includes various types, aiming at reducing the pollutant emissions generated in the process of coal combustion, to protect the environment and human health. In practical application, according to the specific situation of coal-fired power plant and environmental protection requirements, appropriate treatment device or combination of multiple devices is selected to achieve the best environmental protection effect.

[0003] Coal-fired flue gas environmental protection treatment device faces the challenge that particulate matter accumulation leads to the difficulty of using the induced draft device in actual use. Coal-fired flue gas contains a large amount of particulate matter, when these particulate matters enter the induced draft device, they may accumulate and deposit inside the system, forming ash deposits; particulate matter accumulation will increase the resistance of the induced draft device, reducing its efficiency. With the continuous deposition of particulate matter, the air duct of the induced draft device will be gradually blocked, resulting in a decrease in air volume, and even completely losing the ventilation capacity. This will not only affect the emission efficiency of coal-fired flue gas, but also may cause damage to the induced draft device itself. Particulate matter accumulation also affects the service life of the induced draft device. Ash deposits will cause the mechanical parts inside the induced draft device to wear out, especially at critical parts such as fan impeller and bearing. In the long run, this will lead to a decrease in the performance of the induced draft device, and even failure. Particulate matter accumulation may also cause safety hazards. Accumulated particulate matter may cause combustion or explosion at high temperature, posing a threat to the safety of coal-fired flue gas treatment system. SUMMARY

[0004] The main purpose of the utility model is to provide a coal-fired flue gas environmental protection treatment device, which can effectively solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A coal-fired flue gas environmental protection treatment device, comprising a support frame, a material tank, a treatment cylinder and a pipeline and an induced draft device, the material tank is installed in the support frame, the treatment cylinder is installed at the upper end of the support frame and is in communication with the material tank, the first pipeline and the second pipeline are distributed at both ends of the treatment cylinder, and the induced draft device is in communication with the treatment cylinder through the first pipeline;

[0007] The induced draft device is connected with the connection interface through the connection cover, and is connected with the coal-fired flue gas pipeline through the connection interface;

[0008] The inner part of the connecting cover is a through groove, the groove bottom of the through groove is provided with a discharging cover, the lower end of the discharging cover is connected with a discharging port, the cover opening of the discharging cover is provided with a limiting tube, the connecting cover and the limiting tube are provided with an inclined supporting plate, the lower end of the inclined supporting plate is provided with a limiting block matched with the limiting tube, and the inner part of the inclined supporting plate is provided with an inclined filter screen.

[0009] Further optional scheme, the side wall of the support frame is provided with a triangular support, the air draft device is installed on the triangular support through bolts, the connecting cover and the air draft device are fixed through bolts and nuts, and a sealing strip is arranged at the connecting position of the connecting cover and the air draft device.

[0010] Further optional scheme, the connecting cover is connected with the connecting interface through bolts, the outermost end of the connecting interface is provided with a connecting flange, and a sealing strip is arranged at the connecting position of the connecting interface and the connecting cover.

[0011] Further optional scheme, the side view of the discharging port is in trapezoidal design, the discharging port is connected with the discharging cover through bolts, and a sealing strip is arranged at the connecting position of the discharging port and the discharging cover.

[0012] Further optional scheme, the inclined supporting plate is inclinedly inserted into the connecting cover, the inclination angle of the inclined supporting plate is forty-five degrees to seventy-five degrees, and the inclined filter screen is fixed on the inclined supporting plate through bolts.

[0013] Further optional scheme, the inclined supporting plate and the limiting block are designed in an integrated mode, the limiting block is inserted into the limiting tube, a sealing strip is arranged at the connecting position of the limiting block and the limiting tube, a sealing strip is arranged at the connecting position of the inclined supporting plate and the connecting cover, and the inclined supporting plate and the connecting cover are fixed through bolts.

[0014] Compared with the prior art, the utility model has the advantages of the following:

[0015] The inclined filter screen effectively intercepts the particulate matters in flue gas through the inclined design, the particulate matters slide along the surface of the inclined filter screen and fall into the discharging cover, and finally are discharged through the discharging port. This design not only improves the efficiency of flue gas treatment, but also ensures that the particulate matters can be collected and treated in time, avoiding secondary pollution.

[0016] The integrated design of the inclined support plate and the limiting block, as well as the close fit between the limiting block and the limiting tube, enhances the stability and firmness of the device. This design enables the inclined filter screen to maintain its position and shape stability when subjected to flue gas scouring and particle impact, thereby prolonging the service life of the filter screen. The inclined angle of the inclined support plate and the inclined filter screen is reasonably designed, which not only ensures smooth passage of flue gas, but also enables the particles to slide down smoothly. This design optimizes the flue gas treatment process, improves the treatment efficiency, and reduces the maintenance cost of the equipment.

[0017] The installation and disassembly process of the inclined support plate and the inclined filter screen is simple and fast, which is convenient for cleaning and maintenance. This design enables users to easily clean and replace the filter screen, thereby ensuring the continuous and efficient operation of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is an overall structure display diagram of the utility model;

[0020] Figure 3 It is a display diagram of the exhaust device, connecting cover, and connecting interface of the utility model;

[0021] Figure 4 It is a display diagram of the connecting cover, discharge port, discharge cover, inclined support plate, and inclined filter screen of the utility model.

[0022] In the figure: 1, support frame; 2, moving wheel; 3, material tank; 4, treatment cylinder; 5, first pipeline; 6, second pipeline; 7, exhaust device; 8, connecting interface; 9, connecting cover; 10, through slot; 11, discharge cover; 12, limiting tube; 13, discharge port; 14, inclined support plate; 15, limiting block; 16, inclined filter screen. DETAILED DESCRIPTION

[0023] To make the technical means, creative features, purposes, and effects achieved by the utility model easy to understand, the following further describes the utility model in combination with specific implementation manners.

[0024] As shown in Figure 1 - Figure 4 A coal-fired flue gas environmental protection treatment device, which comprises a support frame 1, a material tank 3, a treatment cylinder 4, and a pipeline and an exhaust device 7. The material tank 3 is installed inside the support frame 1, while the treatment cylinder 4 is installed at the upper end of the support frame 1 and is in communication with the material tank 3. The first pipeline 5 and the second pipeline 6 are respectively distributed at both ends of the treatment cylinder 4, and the exhaust device 7 is in communication with the treatment cylinder 4 through the first pipeline 5. This design ensures the effective flow and treatment of flue gas in the treatment cylinder 4.

[0025] The air extraction device 7 is connected with the connecting interface 8 through the connecting cover 9, and then connected with the coal-fired flue gas pipeline through the connecting interface 8. The inside of the connecting cover 9 is a through slot 10, and the bottom of the through slot 10 is provided with a discharging cover 11. The lower end of the discharging cover 11 is connected with a discharging port 13, and the cover opening of the discharging cover 11 is provided with a limiting tube 12. This structure design enables the device to effectively collect and discharge the treated materials.

[0026] The connecting cover 9 and the limiting tube 12 are provided with an inclined support plate 14, and the lower end of the inclined support plate 14 is provided with a limiting block 15 matched with the limiting tube 12. The inside of the inclined support plate 14 is provided with an inclined filter screen 16, and the inclined filter screen 16 can realize the filtration pretreatment of particulate matters in the flue gas. This filter screen design improves the efficiency and effect of flue gas treatment.

[0027] The side wall of the support frame 1 is provided with a triangular support, and the air extraction device 7 is bolted on the triangular support. The connecting cover 9 and the air extraction device 7 are fixed by bolts and nuts, and a sealing strip is arranged at the connection between the connecting cover 9 and the air extraction device 7. This structure design ensures the stability and sealing performance of the device, preventing flue gas leakage.

[0028] The lower end of the support frame 1 is provided with a mobile wheel 2 at the four corners, and the mobile wheel 2 can facilitate the movement of the equipment. This design enables the device to be flexibly moved in different working environments, improving the convenience of use.

[0029] The connecting cover 9 is connected with the connecting interface 8 by bolts, and the outermost end of the connecting interface 8 is provided with a connecting flange. A sealing strip is arranged at the connection between the connecting interface 8 and the connecting cover 9, and the top view of the connecting interface 8 is designed in a trapezoidal shape. This design makes the connection more stable, and the trapezoidal design helps the uniform distribution of flue gas.

[0030] The discharging cover 11 is welded and fixed with the connecting cover 9, and a sealing strip is arranged at the connection between the discharging cover 11 and the connecting cover 9. The side view of the discharging port 13 is designed in a trapezoidal shape, the discharging port 13 is connected with the discharging cover 11 by bolts, and a sealing strip is arranged at the connection between the discharging port 13 and the discharging cover 11. This design ensures the sealing performance and smoothness of the discharging process.

[0031] The inclined support plate 14 is inserted into the connecting cover 9 at an angle, and the inclination angle of the inclined support plate 14 is forty-five to seventy-five degrees. The inclined filter screen 16 is fixed on the inclined support plate 14 by bolts. This angle design and fixing method enable the filter screen to effectively intercept particulate matters in the flue gas.

[0032] The inclined support plate 14 is designed integrally with the limiting block 15, and the limiting block 15 is inserted into the limiting tube 12. The connection between the limiting block 15 and the limiting tube 12 is provided with a sealing strip, and the connection between the inclined support plate 14 and the connecting cover 9 is provided with a sealing strip. The inclined support plate 14 and the connecting cover 9 are fixed by bolts. This integrated design and sealing measure ensures the stable operation of the device and the high efficiency of the flue gas treatment.

[0033] Assembly process: Install the material tank 3 inside the support frame 1. Install the treatment cylinder 4 at the upper end of the support frame 1 and ensure that the treatment cylinder 4 is in communication with the material tank 3. Connect the first pipe 5 and the second pipe 6 to the two ends of the treatment cylinder 4 respectively. Connect the exhaust device 7 to the treatment cylinder 4 through the first pipe 5. Install the connecting cover 9 on the triangular support by bolts. Fix the connecting cover 9 and the exhaust device 7 by bolts and nuts, and ensure that there is a sealing strip at the connection. Connect the connecting cover 9 and the connecting interface 8 by bolts, and ensure that there is a sealing strip at the connection. The outermost end of the connecting interface 8 is provided with a connecting flange. Weld the discharge cover 11 to the connecting cover 9 and ensure that there is a sealing strip at the connection. Connect the discharge port 13 to the discharge cover 11 by bolts and ensure that there is a sealing strip at the connection. Insert the inclined support plate 14 into the connecting cover 9 at an angle of forty-five to seventy-five degrees. Fix the inclined filter screen 16 on the inclined support plate 14 by bolts. Design the inclined support plate 14 integrally with the limiting block 15, and ensure that the limiting block 15 is inserted into the limiting tube 12, and the connection is provided with a sealing strip. Connect the inclined support plate 14 and the connecting cover 9 by bolts, and ensure that there is a sealing strip at the connection. Install the mobile wheels 2 at the lower corners of the support frame 1.

[0034] Usage process: Start the exhaust device 7 and ensure its normal operation. Ensure that the sealing strips at the connecting cover 9, the connecting interface 8, the discharge cover 11, the discharge port 13, etc. are intact and have no leakage. Ensure that the inclined filter screen 16 is installed correctly and has no damage. Ensure that the coal-fired flue gas pipe is correctly connected to the connecting interface 8. Ensure that the equipment operates stably, observe the equipment operation state, and ensure that there is no abnormality. Adjust the air volume of the exhaust device 7 as needed to achieve the best treatment effect. The inclined design of the inclined filter screen 16 allows excessive flue gas particles to fall along the inclined filter screen 16 into the discharge cover 11 and then be discharged from the discharge port 13.

[0035] Close the air suction device 7, ensure that the device stops running. Remove the bolt connection between the inclined support plate 14 and the connecting cover 9. Carefully remove the inclined support plate 14, pay attention not to damage the inclined filter screen 16. Carefully remove the inclined filter screen 16, pay attention to avoid particle scattering. Put the inclined filter screen 16 into the appropriate cleaning solution for cleaning. After cleaning, rinse the inclined filter screen 16 with clean water until clean. Dry the inclined filter screen 16 or wipe it with a clean cloth. Fix the clean inclined filter screen 16 on the inclined support plate 14. Reinstall the inclined support plate 14 into the connecting cover 9 and ensure that it is adapted to the limiting tube 12. Ensure that all bolt connections are tight and not loose. After checking that the whole device is not leaking, restart the air suction device 7 and continue to use.

[0036] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0037] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A coal-fired flue gas environmental protection treatment device, comprising a support frame (1), a material tank (3), a treatment cylinder (4) and a pipeline and an air extraction device (7), the material tank (3) is installed in the support frame (1), the treatment cylinder (4) is installed at the upper end of the support frame (1) and is communicated with the material tank (3), a first pipeline (5) and a second pipeline (6) are distributed at both ends of the treatment cylinder (4), and the air extraction device (7) is communicated with the treatment cylinder (4) through the first pipeline (5), characterized in that: The air draft device (7) is connected with the connecting interface (8) through the connecting cover (9) and is connected with the coal-fired flue gas pipeline through the connecting interface (8); ​ The inside of the connecting cover (9) is a through groove (10), the groove bottom of the through groove (10) is provided with a discharge cover (11), the lower end of the discharge cover (11) is connected with a discharge port (13), the cover opening of the discharge cover (11) is provided with a limiting tube (12), the connecting cover (9) and the limiting tube (12) are provided with an inclined supporting plate (14) at the position, the lower end of the inclined supporting plate (14) is provided with a limiting block (15) matched with the limiting tube (12), the inside of the inclined supporting plate (14) is provided with an inclined filter screen (16), and the flue gas particulate matter is pre-processed through the inclined filter screen (16).

2. The coal-fired flue gas environmental protection treatment device according to claim 1, characterized in that: The side wall of the supporting frame (1) is provided with a triangular support, the air draft device (7) is installed on the triangular support through bolts, the connecting cover (9) and the air draft device (7) are fixed through bolts and nuts, the connecting cover (9) and the air draft device (7) are provided with sealing strips at the connecting position, the lower end of the supporting frame (1) is provided with mobile wheels (2) at the four corners, and the equipment is moved through the mobile wheels (2).

3. The coal-fired flue gas environmental protection treatment device according to claim 2, characterized in that: The connecting cover (9) is connected with the connecting interface (8) through bolts, the outermost end of the connecting interface (8) is provided with a connecting flange, the connecting interface (8) and the connecting cover (9) are provided with sealing strips at the connecting position, the top view of the connecting interface (8) is designed in a trapezoidal shape, the discharge cover (11) is welded and fixed with the connecting cover (9), and the connecting cover (9) is provided with a sealing strip at the connecting position.

4. The coal-fired flue gas environmental protection treatment device according to claim 3, characterized in that: The side view of the discharge port (13) is designed in a trapezoidal shape, the discharge port (13) is connected with the discharge cover (11) through bolts, and the discharge port (13) and the discharge cover (11) are provided with sealing strips at the connecting position.

5. The coal-fired flue gas environmental protection treatment device according to claim 4, characterized in that: The inclined supporting plate (14) is inserted into the connecting cover (9) in an inclined manner, the inclination angle of the inclined supporting plate (14) is forty-five degrees to seventy-five degrees, and the inclined filter screen (16) is fixed on the inclined supporting plate (14) through bolts.

6. The coal-fired flue gas environmental protection treatment device according to claim 5, characterized in that: The inclined supporting plate (14) is designed in an integral manner with the limiting block (15), the limiting block (15) is inserted into the limiting tube (12), the connecting position of the limiting block (15) and the limiting tube (12) is provided with a sealing strip, the connecting position of the inclined supporting plate (14) and the connecting cover (9) is provided with a sealing strip, and the inclined supporting plate (14) and the connecting cover (9) are fixed through bolts.

Images