Laminated rectifier for SCR (Selective Catalytic Reduction) denitration equipment
By designing a dust removal box and a reaction box in the SCR denitrification equipment, and using a mist nozzle to separate dust and a stirring rod to mix the catalyst in the reaction box, the problems of slow denitrification reaction rate and uneven mixing caused by dust are solved, thus improving the purification efficiency.
Patent Information
- Application Number
- CN202423048160.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing SCR denitrification equipment with stacked rectifiers suffers from slow denitrification reaction rates and uneven mixing when processing dust-containing gases, thus affecting the purification effect.
A stacked rectifier comprising a dust collection box and a reaction box was designed. Dust is separated by a mist nozzle, and the mist nozzle is moved left and right and swung up and down by a motor driving a rotating rod and shaft. The dust and moisture are filtered by a filter box. Then, in the reaction box, the stirring rod is rotated by a motor driving a screw and gear system to ensure that the catalyst and pollutants are fully mixed.
It achieves effective separation of dust and pollutants, avoids water waste, and improves the mixing efficiency of catalyst and pollutants, thereby enhancing the purification efficiency of denitrification.
Smart Images

Figure CN223668953U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to denitration technical field, concretely is used for the layering rectifier of SCR denitration equipment. BACKGROUND
[0002] China is a country with coal as the main energy, and coal-fired power generation is one of the most important ways of coal utilization in China. According to the national conditions of China, coal-fired power generation will occupy the dominant position in the twenty-first century. Among the many air pollutants emitted by coal-fired power plants, SO2 and dust have greater harm to the environment and are the main pollutants to be controlled. With the progress of society and the development of economy, the pollution of thermal power plants to the atmospheric environment has been widely concerned by people, so effectively reducing pollutant emissions to improve the impact on the environment is a severe challenge faced by the sustainable development of China's energy field.
[0003] The layering rectifier for SCR denitration equipment disclosed in the Chinese utility model patent application publication CN101642678U, although, makes it through the air inlet atmospheric pollutants into the reactor and through the catalyst and reducing agent fusion makes it to atmospheric pollutants for denitration, but, the layering rectifier for SCR denitration equipment, there are dust in atmospheric pollutants, if not timely processing affects the rate of denitration reaction and atmospheric pollutants and catalyst and reducing agent mixing is not uniform, thereby affecting the degree of purification of denitration. UTILITY MODEL CONTENT
[0004] (I) technical problem solved
[0005] In view of the deficiencies in the prior art, the utility model provides a layering rectifier for SCR denitration equipment, which solves the problems raised in the above background art.
[0006] (II) technical scheme
[0007] To achieve the above purpose, the utility model is realized by the following technical scheme: including main body dust removal box, the both sides of dust removal box are internally provided with first installation slot, the bottom end middle part of first installation slot is fixedly connected with first motor, the top end of output shaft of first motor is fixedly connected with rotating rod, the surface one end of rotating rod is provided with rotating groove, the bottom end of rotating groove penetrates rotating rod.
[0008] Optionally, the middle part of the first installation slot is slidably connected with a fixed block, the front surface of the fixed block is fixedly connected with a rotating column, and the rotating column is slidably connected with the rotating groove.
[0009] Optionally, the inside of the fixed block is rotationally connected with a rotating shaft, the middle of the first mounting slot is fixedly connected with a fixed plate, one end of the fixed plate is fixedly connected with a sliding column, and the surface of the rotating shaft is provided with a sliding groove matched with the sliding column, and the sliding column is in sliding connection with the sliding groove.
[0010] Optionally, the surface of the rotating shaft is fixedly connected with a mist-shaped nozzle, the water outlet of the mist-shaped nozzle penetrates the dust removal box, the inside bottom of the dust removal box is provided with a plurality of water inlets arranged in a linear array.
[0011] Optionally, the bottom of the water inlet penetrates the dust removal box and is communicated with a filter box, the filter box is fixedly connected with the dust removal box, the water outlet of the filter box is communicated with a water pump, the water outlet of the water pump is communicated with a water delivery pipe, the water delivery pipe is a hose, the water delivery pipe penetrates the fixed block and is communicated with the mist-shaped nozzle, and the air inlet of the dust removal box is communicated with an air inlet pipe.
[0012] Optionally, the air outlet of the dust removal box is communicated with a gas delivery pipe, the air outlet of the gas delivery pipe is communicated with a reaction box, one side of the inside of the reaction box is fixedly connected with a mixing box, the air inlet of the mixing box is communicated with a feeding pipe, the feeding port of the feeding pipe penetrates the reaction box, the air outlet of the mixing box is communicated with a gas pump, the air outlet of the gas pump penetrates the reaction box, the air outlet of the reaction box is communicated with an air outlet pipe, and the air outlet of the air outlet pipe penetrates the reaction box.
[0013] Optionally, the middle of the inside of one side of the reaction box is provided with a second mounting slot, the middle of the bottom of the second mounting slot is fixedly connected with a second motor, the top of the output shaft of the second motor is fixedly connected with a screw rod, the surface of the screw rod is threadedly connected with a screw block, one side of the inside of the screw block is rotationally connected with a connecting shaft, one end of the connecting shaft is fixedly connected with a gear, one side of the middle of the second mounting slot is fixedly connected with a rack, and the gear is in meshing connection with the rack.
[0014] Optionally, the surface of the other side of the connecting shaft is fixedly connected with a plurality of stirring rods, and the plurality of stirring rods are linearly distributed.
[0015] (Three) beneficial effects
[0016] The utility model provides a laminated rectifier for SCR denitration equipment has the following beneficial effects:
[0017] 1. The laminated rectifier for the SCR denitration equipment, the first motor is started, the rotating column is matched, the mist spray head is moved left and right, when the fixed block moves to the right, the rotating shaft is moved to the right, the sliding groove is moved to the right, the fixed plate is fixed, the sliding column is slid in the sliding groove, the rotating shaft is rotated, the mist spray head is rotated, the dust on the surface of the atmospheric pollutants is carried by water through the left and right movement of the mist spray head and the up and down swing of the mist spray head, the dust in the atmospheric pollutants is separated from the atmospheric pollutants, the water carrying the dust enters the filter box through the water inlet hole, the water filtered by the filter box is retransmitted to the mist spray head through the cooperation with the water pump water pipe, so that the waste of water resources is avoided.
[0018] 2. The laminated rectifier for the SCR denitration equipment, the atmospheric pollutants after removing the dust enter the reaction box through the gas conveying pipe, the reactant and the catalyst are added to the mixing box through the feeding pipe, the reactant and the catalyst are sprayed into the reaction box through the air pump to react with the atmospheric pollutants, the second motor is started, the screw block is moved up and down through the threaded connection of the screw rod and the screw block, the stirring rod is rotated through the meshing of the rack and the gear, the atmospheric pollutants, the catalyst and the reducing agent in the reaction box are fully mixed through the stirring rod, the purification efficiency of the denitration is improved, and the purified atmospheric pollutants are discharged through the gas outlet pipe. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a structure front view schematic diagram of the utility model;
[0020] Figure 2 It is a structure front view schematic diagram of the utility model;
[0021] Figure 3 It is a structure front view schematic diagram of the utility model; Figure 2 It is an enlarged structure schematic diagram of A in the utility model;
[0022] Figure 4 It is a side view cross section structure schematic diagram of the dust removal box of the utility model;
[0023] Figure 5 It is a partial top view cross section structure schematic diagram of the dust removal box of the utility model;
[0024] Figure 6 It is a side view cross section structure schematic diagram of the reaction box of the utility model.
[0025] In the figure: 1, dust removal box; 2, air inlet pipe; 3, gas conveying pipe; 4, reaction box; 5, filter box; 6, water conveying pipe; 7, fixed block; 8, mist nozzle; 9, rotating shaft; 10, first mounting groove; 11, rotating rod; 12, rotating column; 13, first motor; 15, sliding column; 16, fixed plate; 17, stirring rod; 18, connecting shaft; 20, screw rod; 21, second mounting groove; 22, screw block; 23, second motor; 24, rack; 25, gear; 26, air outlet pipe; 27, feeding pipe. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0027] Embodiment 1
[0028] Please refer to Figures 1 to 5 The utility model provides technical scheme: for SCR denitration equipment's laminated rectifier, including main body dust removal box 1, the inside of both sides of dust removal box 1 is set up first mounting groove 10, and the middle part of the bottom of first mounting groove 10 is fixedly connected with first motor 13, and the top of the output shaft of first motor 13 is fixedly connected with rotating rod 11, and the surface one end of rotating rod 11 is set up rotating groove, and the bottom of rotating groove penetrates rotating rod 11, and the middle part of first mounting groove 10 is slidably connected with fixed block 7, and the front surface of fixed block 7 is fixedly connected with rotating column 12, and rotating column 12 is slidably connected with rotating groove, and the inside of fixed block 7 is rotatably connected with rotating shaft 9, and the middle part of both ends of first mounting groove 10 is fixedly connected with fixed plate 16, and one end of fixed plate 16 is fixedly connected with sliding column 15, and the surface both ends of rotating shaft 9 are set up sliding groove matched with sliding column 15, and sliding column 15 is slidably connected with sliding groove, and sliding column 15 is always in sliding groove, and the surface of rotating shaft 9 is fixedly connected with mist nozzle 8, and the water outlet of mist nozzle 8 penetrates dust removal box 1, and the inside bottom of dust removal box 1 is set up water inlet, and the water inlet is multiple, and multiple water inlets are linear array distribution, and the bottom of water inlet penetrates dust removal box 1 and is communicated with filter box 5, and filter box 5 is fixedly connected with dust removal box 1, and the water outlet of filter box 5 is communicated with water pump, and the water outlet of water pump is communicated with water conveying pipe 6, and water conveying pipe 6 is hose, and water conveying pipe 6 penetrates fixed block 7 and is communicated with mist nozzle 8, and the air inlet of dust removal box 1 is communicated with air inlet pipe 2;
[0029] In use, the atmospheric pollutants enter the dust removal box 1 through the air inlet pipe 2, the first motor 13 is started, the rotating rod 11 is swung through the output shaft of the first motor 13, so that the rotating groove is rotated, and the fixed block 7 is moved left and right due to the cooperation of the rotating column 12, so that the fog-shaped nozzle 8 is moved left and right, when the fixed block 7 moves to the right, the rotating shaft 9 is moved to the right, so that the sliding groove is moved to the right, the sliding column 15 slides in the sliding groove due to the fixed plate 16 being fixed, so that the rotating shaft 9 is rotated, so that the fog-shaped nozzle 8 is rotated, the fog-shaped nozzle 8 is moved left and right and the fog-shaped nozzle 8 is swung up and down, so that the dust on the surface of the atmospheric pollutants is attached with water, so that the dust in the atmospheric pollutants is separated from the atmospheric pollutants, and the water carrying the dust enters the filter box 5 through the water inlet hole, and the water filtered through the filter box 5 is retransported into the fog-shaped nozzle 8 through the cooperation of the water pump water pipe 6, so that the waste of water resources is avoided.
[0030] Embodiment 2
[0031] Please refer to Figures 2 to 6 The utility model provides technical schemes: the laminated rectifier for SCR denitration equipment, the air outlet of dust removal box 1 is connected with the gas conveying pipe 3, the air outlet of gas conveying pipe 3 is connected with the reaction box 4, the inside fixed connection of one side of reaction box 4 has the mixing box, the air inlet of mixing box is connected with the feed pipe 27, and the feed inlet of feed pipe 27 penetrates reaction box 4, and the air outlet of mixing box is connected with the air pump, and the air outlet of air pump penetrates reaction box 4, and the air outlet of reaction box 4 is connected with the air outlet pipe 26, and the air outlet of air outlet pipe 26 penetrates reaction box 4, and the inside middle part of one side of reaction box 4 is provided with the second installation slot 21, and the bottom middle part fixed connection of second installation slot 21 has the second motor 23, and the top of the output shaft of second motor 23 is fixedly connected with screw rod 20, and the surface screw connection of screw rod 20 has screw block 22, and the inside one side rotationally connected of screw block 22 has connecting shaft 18, and one end of connecting shaft 18 is fixedly connected with gear 25, and the middle one side fixed connection of second installation slot 21 has rack 24, and gear 25 is connected with rack 24, and the surface other side fixed connection of connecting shaft 18 has stirring rod 17, and stirring rod 17 has a plurality of, and a plurality of stirring rod 17 is linearly distributed;
[0032] In use, the atmospheric pollutants after removing dust enter into the reaction box 4 through the gas inlet pipe 3, the reactants and catalysts are added into the mixing box through the feeding pipe 27, the reactants and catalysts are sprayed into the reaction box 4 through the air pump to react with the atmospheric pollutants, the second motor 23 is started, the screw rod 20 is driven to rotate by the output shaft of the second motor 23, the screw rod 20 and the screw block 22 are threadedly connected, so that the screw block 22 can be driven to move up and down, the connecting shaft 18 is driven to move up and down while the screw block 22 moves up and down, so that the gear 25 is driven to move up and down, the rack 24 is fixed, the gear 25 is driven to rotate due to the meshing effect of the rack 24 and the gear 25, so that the connecting shaft 18 can be driven to rotate, and the stirring rod 17 can be driven to rotate, the atmospheric pollutants, the catalysts and the reducing agents in the reaction box 4 are fully mixed by the stirring rod 17, so that the purification efficiency of the atmospheric pollutants can be improved, and the purified atmospheric pollutants are discharged through the gas outlet pipe 26.
[0033] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A laminated rectifier for an SCR denitration device, comprising a main dust removal tank (1), characterized in that: The first installation slot (10) is slidably connected with a fixed block (7), and the front surface of the fixed block (7) is fixedly connected with a rotating column (12) which is slidably connected with the rotating groove.
2. The laminated rectifier for an SCR denitration device according to claim 1, characterized by: The inside of the fixed block (7) is rotatably connected with a rotating shaft (9), and the middle of the first installation slot (10) is fixedly connected with a fixed plate (16), one end of the fixed plate (16) is fixedly connected with a sliding column (15), and the surface of the rotating shaft (9) is provided with a sliding groove matched with the sliding column (15), and the sliding column (15) is slidably connected with the sliding groove.
3. The laminated rectifier for an SCR denitration device according to claim 2, characterized by: The surface of the rotating shaft (9) is fixedly connected with a mist sprayer (8), the water outlet of the mist sprayer (8) penetrates the dust removal box (1), the inside bottom of the dust removal box (1) is provided with a plurality of water inlet holes which are linearly arranged.
4. The laminated rectifier for an SCR de-NOx apparatus according to claim 3, characterized by: The bottom of the water inlet hole penetrates the dust removal box (1) and is connected with a filter box (5), the filter box (5) is fixedly connected with the dust removal box (1), the water outlet of the filter box (5) is connected with a water pump, the water outlet of the water pump is connected with a water conveying pipe (6), the water conveying pipe (6) is a hose, the water conveying pipe (6) penetrates the fixed block (7) and is connected with the mist sprayer (8), and the air inlet of the dust removal box (1) is connected with an air inlet pipe (2).
5. The laminated rectifier for an SCR deNOx device of claim 4, wherein: The air outlet of the dust removal box (1) is connected with a gas conveying pipe (3), the air outlet of the gas conveying pipe (3) is connected with a reaction box (4), one side of the inside of the reaction box (4) is fixedly connected with a mixing box, the air inlet of the mixing box is connected with a feeding pipe (27), the feeding port of the feeding pipe (27) penetrates the reaction box (4), the air outlet of the mixing box is connected with a gas pump, the air outlet of the gas pump penetrates the reaction box (4), the air outlet of the reaction box (4) is connected with an air outlet pipe (26), and the air outlet of the air outlet pipe (26) penetrates the reaction box (4).
6. The laminated rectifier for an SCR de-NOx apparatus according to claim 1, characterized by: The inside of the reaction box (4) is provided with a second installation slot (21) on one side, the bottom of the second installation slot (21) is fixedly connected with a second motor (23), the top of the output shaft of the second motor (23) is fixedly connected with a screw rod (20), the surface of the screw rod (20) is threadedly connected with a screw block (22), one side of the inside of the screw block (22) is rotatably connected with a connecting shaft (18), one end of the connecting shaft (18) is fixedly connected with a gear (25), and one side of the middle of the second installation slot (21) is fixedly connected with a rack (24). The gear (25) is in meshing connection with the rack (24).
7. The laminated rectifier for an SCR deNOx device of claim 6, wherein: 8. The laminated rectifier for an SCR deNOx device of claim 7, wherein: The surface of the connecting shaft (18) is fixedly connected with stirring rods (17), and the stirring rods (17) are multiple and linearly distributed.
Citation Information
Patent Citations
Cascading type rectifier used for SCR denitration device
CN101642678A