Environment-friendly device for purifying waste gas of thermal power plant

Abstract

The utility model relates to the field of waste gas treatment technology of thermal power plant discloses a kind of waste gas purification environmental protection device of thermal power plant, including the frame for waste gas treatment, the outside fixed connection of frame has the air intake assembly for air intake, the inner chamber fixed connection of frame has the steam heat exchange mechanism for steam heat exchange, the bottom end fixed connection of frame has the material return plate for discharging, the bottom end fixed connection of material return plate has the material collecting mechanism for stacking, the bottom end fixed connection of material return plate has the stand for connection, the bottom end fixed connection of stand has the bottom plate for supporting, heat exchanger can fully absorb the heat in waste gas, realize the recycling of heat, water circulation bin cooperates with heat exchanger, forms water circulation system, steam heat exchange mechanism absorbs the heat in waste gas through heat exchanger, heats the water in water circulation bin, generates steam, realizes waste heat utilization+purification dual effect, reduces external energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology in thermal power plants, specifically to an environmental protection device for purifying waste gas from thermal power plants. Background Technology

[0002] Air pollution is a complex phenomenon. The concentration of air pollutants at a specific time and place is affected by many factors. The amount of anthropogenic pollutant emissions from stationary and mobile pollution sources is one of the most important factors affecting air quality. These include vehicle, ship, and aircraft exhaust, industrial pollution, residential heating and waste incineration, etc. Urban development density, topography, and meteorology are also important factors affecting air quality. Thermal power plants are particularly serious sources of environmental pollution. The coal they burn produces a large amount of sulfur and nitrate-containing waste gas. When these waste gases are released into the atmosphere, they cause pollution and form acid rain. After sulfur dioxide enters the atmosphere, it dissolves in water to form sulfurous acid, some of which is oxidized to sulfuric acid, forming acid rain. Acid rain not only destroys large areas of forest and crops, but also corrodes and breaks down paper, textiles, and leather products. It can also deteriorate the anti-rust coatings on metals, reducing their protective effect, and corrode and pollute buildings. Along with the construction of thermal power plants, corresponding waste gas purification equipment is also built. However, during the waste gas treatment process of thermal power plants, the waste gas generated by the combustion of fuels such as coal often carries a large amount of residual heat. This residual heat mainly exists in the form of thermal energy in high-temperature waste gas. If the heat contained therein is directly discharged, it will not only cause energy waste, but may also affect the subsequent treatment equipment due to the high temperature.

[0003] For example, CN214182476U discloses a thermal power plant exhaust gas purification and environmental protection device, including a base plate, a rotating shaft, and a rotating shaft control unit. The base plate has three support rods fixedly connected to the center of its upper surface, distributed at equal angles. A support ring seat is fixedly connected to the upper end of each support rod, and a filter purification barrel is fixedly connected to the upper end of the support ring seat. An outlet is located at the center of the lower end of the filter purification barrel. A circular hole is opened at the center of the upper end of the filter purification barrel, and the rotating shaft is rotatably connected within this hole. A stirring rod is fixedly connected to the lower end of the rotating shaft. Ventilation holes are opened on both the left and right sides of the upper end of the filter purification barrel. An inlet pipe is fixedly fitted into the vent hole on the left side of the upper end of the filter purification barrel, and an outlet pipe is fixedly fitted into the vent hole on the right side of the upper end of the filter purification barrel. This thermal power plant exhaust gas purification and environmental protection device can effectively filter and purify exhaust gas during use, thereby protecting the environment.

[0004] However, in the process of treating exhaust gas in thermal power plants, the exhaust gas generated by the combustion of fuels such as coal often carries a large amount of residual heat. This residual heat mainly exists in the form of thermal energy in high-temperature exhaust gas. For example, the temperature of exhaust gas discharged from coal-fired boilers can usually reach 120-300℃. If the heat contained therein is directly discharged, it will not only cause energy waste, but may also affect subsequent treatment equipment due to the high temperature. Therefore, those skilled in the art provide a thermal power plant exhaust gas purification and environmental protection device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide an environmental protection device for purifying exhaust gas from thermal power plants, which solves the problem that in the existing technology, the exhaust gas generated by the combustion of fuels such as coal in the exhaust gas treatment process of thermal power plants often carries a large amount of residual heat. This residual heat mainly exists in the form of thermal energy in the high-temperature exhaust gas. If the heat contained therein is directly discharged, it will not only cause energy waste, but may also affect the subsequent treatment equipment due to the high temperature.

[0006] This utility model provides the following technical solution: a thermal power plant exhaust gas purification and environmental protection device, including a frame for exhaust gas treatment, an air intake component for air intake fixedly connected to the outer side of the frame, a steam heat exchange mechanism for steam heat exchange fixedly connected to the inner cavity of the frame, a material discharge plate for material discharge fixedly connected to the bottom end of the frame, a material collection mechanism for material stacking fixedly connected to the bottom end of the material discharge plate, a column for connection fixedly connected to the bottom end of the material discharge plate, and a base plate for support fixedly connected to the bottom end of the column.

[0007] As a preferred embodiment of the above technical solution, the air intake assembly includes an air intake pipe, which is fixedly connected to the outside of the frame. The inner cavity of the air intake pipe is provided with a slot for conveying gas. A reinforcing head is fixedly connected to the outside of the air intake pipe, and the reinforcing head is used to connect the air intake pipe and an external device.

[0008] As a preferred embodiment of the above technical solution, the steam heat exchange mechanism includes a heat exchanger, which is fixedly connected to the inner cavity of the frame. One end of the heat exchanger is fixedly connected to a side plate, and the inner cavity of the side plate is fixedly connected to a water circulation chamber. One end of the side plate is fixedly connected to a baffle.

[0009] As a preferred embodiment of the above technical solution, a pipe is fixedly connected to the top of the side plate, a steam generating chamber is fixedly connected to one end of the pipe, an atomizing nozzle is fixedly connected to one end of the steam generating chamber, and the atomizing nozzle array is provided in three groups.

[0010] As a preferred embodiment of the above technical solution, the material collection mechanism includes a fixed column, which is fixedly connected to the top of the base plate. A connecting column is fixedly connected to the inner cavity of the fixed column. Two sets of connecting columns are symmetrically arranged, and a material collection bin is fixedly connected between the two sets of symmetrically arranged connecting columns.

[0011] As a preferred embodiment of the above technical solution, the inner cavity of the collection bin is rotatably connected to a screw, one end of the screw is fixedly connected to an adjusting handle, and the outer side of the screw is rotatably connected to a tilting plate.

[0012] As a preferred embodiment of the above technical solution, a fixing plate is fixedly connected to one end of the flip plate, the inner wall of the fixing plate is threaded, an extension plate is fixedly connected to one end of the flip plate, a connecting plate is fixedly connected to the top of the extension plate, and a fixing screw is threadedly connected to the inner cavity of the connecting plate, the fixing screw passing through the inner cavities of the connecting plate and the fixing plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention features a steam heat exchange mechanism. The heat exchanger can fully absorb heat from the waste gas, achieving heat recovery and utilization. The water circulation chamber works in conjunction with the heat exchanger to form a water circulation system. The water circulation absorbs and transfers heat, facilitating steam generation. Baffles guide and block the flow of waste gas, allowing it to contact the heat exchanger more fully and improving the heat exchange effect. Pipes transport steam from the steam generation chamber to the atomizing nozzles. The three arrays of atomizing nozzles can evenly atomize the steam, increasing the contact area between the steam and particulate matter in the waste gas and improving the adsorption efficiency of the particulate matter. The steam heat exchange mechanism absorbs heat from the waste gas through the heat exchanger, heats the water in the water circulation chamber, and generates steam, achieving the dual effects of waste heat utilization and purification, reducing external energy consumption.

[0015] Based on the above-mentioned beneficial effects, this utility model is equipped with a material collection mechanism. The fixed column and the connecting column constitute the support structure of the material collection bin, ensuring the stable installation of the material collection bin. The material collection bin is used to collect particles and other impurities falling from the discharge plate. The screw and the adjusting handle allow the tilting plate to be tilted by rotating the screw, which facilitates the cleaning and unloading of impurities in the material collection bin. Furthermore, the combination of the fixed plate, the extension plate, the connecting plate and the fixing screws fixes the tilting plate, ensuring that the tilting plate will not move arbitrarily during normal operation and ensuring the normal operation of the material collection mechanism. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an environmental protection device for purifying and purifying exhaust gas from a thermal power plant.

[0017] Figure 2 This is a schematic diagram of the air inlet pipe connection of an air inlet component in a thermal power plant exhaust gas purification and environmental protection device.

[0018] Figure 3 This is a schematic diagram of the heat exchanger connection in a heat exchange mechanism of a thermal power plant exhaust gas purification and environmental protection device.

[0019] Figure 4 A schematic diagram of the water circulation chamber connection of a heat exchange mechanism in a thermal power plant exhaust gas purification and environmental protection device.

[0020] Figure 5 A schematic diagram of the tilting plate connection of the material collection mechanism in a thermal power plant exhaust gas purification and environmental protection device.

[0021] Figure 6 This is a schematic diagram of the fixing screw connection of the material collection mechanism in a thermal power plant exhaust gas purification and environmental protection device.

[0022] In the diagram: 1. Frame; 2. Air intake assembly; 21. Air intake pipe; 22. Reinforcing head; 3. Steam heat exchange mechanism; 31. Heat exchanger; 32. Side plate; 33. Water circulation chamber; 34. Baffle; 35. Pipe; 36. Steam generation chamber; 37. Atomizing nozzle; 4. Unloading plate; 5. Material collection mechanism; 51. Fixed column; 52. Connecting column; 53. Material collection bin; 54. Screw; 55. Adjusting handle; 56. Tilting plate; 57. Fixed plate; 58. Extension plate; 59. Connecting plate; 510. Fixing screw; 6. Column; 7. Base plate. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figures 1-6 As shown, this utility model provides a technical solution: a thermal power plant exhaust gas purification and environmental protection device, including a frame 1 for exhaust gas treatment, an air intake component 2 for air intake fixedly connected to the outside of the frame 1, a steam heat exchange mechanism 3 for steam heat exchange fixedly connected to the inner cavity of the frame 1, a material discharge plate 4 for material discharge fixedly connected to the bottom end of the frame 1, a material collection mechanism 5 for material stacking fixedly connected to the bottom end of the material discharge plate 4, a column 6 for connection fixedly connected to the bottom end of the material discharge plate 4, and a base plate 7 for support fixedly connected to the bottom end of the column 6.

[0025] The frame 1 serves as the main structure, providing space for the installation and operation of various functional components, ensuring the integrity and stability of the device, and achieving the effect of waste gas treatment. In this process, the air intake component 2 introduces waste gas, the steam heat exchange mechanism 3 exchanges heat with the waste gas and generates steam, the discharge plate 4 facilitates the discharge of impurities such as particulate matter, the collection mechanism 5 is used to collect the discharged impurities, and the columns 6 and the base plate 7 support the entire device, enabling all parts to work together to achieve the function of waste gas purification.

[0026] As one implementation method in this embodiment, please refer to Figures 1-2As shown, the air intake assembly 2 includes an air intake pipe 21, which is fixedly connected to the outside of the frame 1. The inner cavity of the air intake pipe 21 is provided with a slot for conveying gas. A reinforcing head 22 is fixedly connected to the outside of the air intake pipe 21. The reinforcing head 22 is used to connect the air intake pipe 21 and the external device.

[0027] The intake pipe 21 ensures that exhaust gas can stably enter the frame 1, the slot design ensures that the gas delivery channel is unobstructed, and the reinforcing head 22 enhances the firmness of the connection between the intake pipe 21 and the external device, avoiding problems such as air leakage due to loose connection, and ensuring the stability and reliability of exhaust gas input.

[0028] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, the steam heat exchange mechanism 3 includes a heat exchanger 31, which is fixedly connected to the inner cavity of the frame 1. One end of the heat exchanger 31 is fixedly connected to a side plate 32, and the inner cavity of the side plate 32 is fixedly connected to a water circulation chamber 33. One end of the side plate 32 is fixedly connected to a baffle 34.

[0029] The heat exchanger 31 can fully absorb the heat in the exhaust gas and realize the recovery and utilization of heat. The water circulation chamber 33 works in conjunction with the heat exchanger 31 to form a water circulation system. The heat is absorbed and transferred through the circulation of water, which facilitates the generation of steam. The baffle 34 can guide and block the flow of exhaust gas to a certain extent, so that the exhaust gas can come into more full contact with the heat exchanger 31 in the heat exchanger 31 and improve the heat exchange effect.

[0030] As one implementation method in this embodiment, please refer to Figures 1-3 As shown, a pipe 35 is fixedly connected to the top of the side plate 32, a steam generating chamber 36 is fixedly connected to one end of the pipe 35, and an atomizing nozzle 37 is fixedly connected to one end of the steam generating chamber 36. The atomizing nozzle 37 is arranged in an array of three groups.

[0031] Pipeline 35 transports steam from steam generation chamber 36 to atomizing nozzle 37. The three arrays of atomizing nozzles 37 can atomize the steam evenly, increasing the contact area between the steam and particulate matter in the exhaust gas and improving the adsorption efficiency of particulate matter.

[0032] As one implementation method in this embodiment, please refer to Figures 1-5 As shown, the material collection mechanism 5 includes a fixed column 51, which is fixedly connected to the top of the base plate 7. A connecting column 52 is fixedly connected to the inner cavity of the fixed column 51. Two sets of connecting columns 52 are symmetrically arranged, and a material collection bin 53 is fixedly connected between the two sets of symmetrically arranged connecting columns 52.

[0033] The fixed column 51 and the connecting column 52 constitute the support structure of the collection bin 53, ensuring the stable installation of the collection bin 53. The collection bin 53 is used to collect particles and other impurities falling from the discharge plate 4.

[0034] As one implementation method in this embodiment, please refer to Figures 1-5 As shown, a screw 54 is rotatably connected to the inner cavity of the collection bin 53. An adjusting handle 55 is fixedly connected to one end of the screw 54, and a tilting plate 56 is rotatably connected to the outer side of the screw 54.

[0035] The screw 54 and the adjusting handle 55 are designed so that the tilting plate 56 can be tilted by rotating the screw 54, which facilitates the cleaning and unloading of impurities in the collection bin 53.

[0036] As one implementation method in this embodiment, please refer to Figures 1-6 As shown, a fixed plate 57 is fixedly connected to one end of the flip plate 56. The inner wall of the fixed plate 57 is threaded. An extension plate 58 is fixedly connected to one end of the flip plate 56. A connecting plate 59 is fixedly connected to the top of the extension plate 58. A fixing screw 510 is threadedly connected to the inner cavity of the connecting plate 59. The fixing screw 510 passes through the inner cavities of the connecting plate 59 and the fixed plate 57.

[0037] The combination of the fixing plate 57, the extension plate 58, the connecting plate 59 and the fixing screw 510 fixes the tilting plate 56, ensuring that the tilting plate 56 will not move at will during normal operation and ensuring the normal operation of the material collection mechanism 5.

[0038] Working principle: Exhaust gas enters the device through the slot of the inlet pipe 21. The reinforcing head 22 on the outside of the inlet pipe 21 is firmly connected to the external device to ensure stable exhaust gas input. The exhaust gas entering the frame 1 flows through the heat exchanger 31, which transfers the heat from the exhaust gas to the water in the water circulation chamber 33 inside the side plate 32. After being heated, the water enters the steam generation chamber 36 through the pipe 35, where steam is formed. The steam is then transported to the atomizing nozzle 37 through the pipe 35, where it is atomized into tiny droplets. The atomized steam droplets collide with the particulate matter in the exhaust gas. The combined action increases the weight of the particles, which, under the influence of gravity, move downwards with the exhaust gas and fall into the collection bin 53 of the collection mechanism 5 after passing through the discharge plate 4. When it is necessary to clean the particles in the collection bin 53, the adjusting handle 55 is turned to drive the screw 54 to rotate. The rotation of the screw 54 causes the tilting plate 56 to rotate around its axis, opening the discharge port of the collection bin 53 and discharging the particles. After the discharge is completed, the tilting plate 56 is fixed and reset by the fixing screws 510 and other components to continue the collection work. Throughout the process, the column 6 and the base plate 7 support the entire device to ensure stable operation.

[0039] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A waste gas purification and environmental protection device for thermal power plants, characterized in that: The system includes a frame (1) for treating exhaust gas, an air intake assembly (2) for air intake is fixedly connected to the outside of the frame (1), a steam heat exchange mechanism (3) for steam heat exchange is fixedly connected to the inner cavity of the frame (1), a material discharge plate (4) for discharging is fixedly connected to the bottom end of the frame (1), a material collection mechanism (5) for stacking is fixedly connected to the bottom end of the material discharge plate (4), a column (6) for connection is fixedly connected to the bottom end of the material discharge plate (4), and a base plate (7) for support is fixedly connected to the bottom end of the column (6).

2. The environmental protection device for purifying exhaust gas from a thermal power plant according to claim 1, characterized in that: The air intake assembly (2) includes an air intake pipe (21), which is fixedly connected to the outside of the frame (1). The inner cavity of the air intake pipe (21) is provided with a slot for conveying gas. A reinforcing head (22) is fixedly connected to the outside of the air intake pipe (21). The reinforcing head (22) is used to connect the air intake pipe (21) and an external device.

3. The environmental protection device for purifying exhaust gas from a thermal power plant according to claim 1, characterized in that: The steam heat exchange mechanism (3) includes a heat exchanger (31), which is fixedly connected to the inner cavity of the frame (1). A side plate (32) is fixedly connected to one end of the heat exchanger (31), and a water circulation chamber (33) is fixedly connected to the inner cavity of the side plate (32). A baffle (34) is fixedly connected to one end of the side plate (32).

4. The environmental protection device for purifying exhaust gas from a thermal power plant according to claim 3, characterized in that: The top of the side plate (32) is fixedly connected to a pipe (35), one end of the pipe (35) is fixedly connected to a steam generating chamber (36), one end of the steam generating chamber (36) is fixedly connected to an atomizing nozzle (37), and the atomizing nozzle (37) is arranged in three groups.

5. The environmental protection device for purifying exhaust gas from a thermal power plant according to claim 1, characterized in that: The material collection mechanism (5) includes a fixed column (51), which is fixedly connected to the top of the base plate (7). A connecting column (52) is fixedly connected to the inner cavity of the fixed column (51). Two sets of connecting columns (52) are symmetrically arranged, and a material collection bin (53) is fixedly connected between the two sets of symmetrically arranged connecting columns (52).

6. The environmental protection device for purifying exhaust gas from a thermal power plant according to claim 5, characterized in that: The inner cavity of the collection bin (53) is rotatably connected to a screw (54), one end of the screw (54) is fixedly connected to an adjusting handle (55), and the outer side of the screw (54) is rotatably connected to a flip plate (56).

7. The environmental protection device for purifying exhaust gas from a thermal power plant according to claim 6, characterized in that: One end of the flip plate (56) is fixedly connected to a fixing plate (57), the inner wall of the fixing plate (57) is threaded, one end of the flip plate (56) is fixedly connected to an extension plate (58), the top end of the extension plate (58) is fixedly connected to a connecting plate (59), the inner cavity of the connecting plate (59) is threaded with a fixing screw (510), and the fixing screw (510) passes through the inner cavities of the connecting plate (59) and the fixing plate (57).

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