Wet-type multi-tube flue gas purification equipment and purification method thereof

Abstract

The invention discloses wet-type multi-tube flue gas purification equipment and a purification method thereof, and the equipment comprises a shell, a flue gas inlet, a flue gas outlet, a flue gas inlet, a flue gas outlet, a flue gas inlet and a flue gas outlet, wherein the shell is provided with a flue gas inlet and a flue gas outlet; the shell is internally provided with a multi-stage washing part, the multi-stage washing part comprises an air distribution washing unit, and the air distribution washing unit comprises a collecting pipe arranged in the shell and communicated with the flow guide cavity and a multi-stage air distribution pipe communicated with the collecting pipe. According to the flue gas purification equipment disclosed by the invention, the air distribution pipe is designed into a combined type, impurities are attached to the movable pipe body after flue gas passes through the air distribution pipe, and the movable pipe body is replaced at the moment, so that the subsequent purification effect is prevented from being influenced after the impurities in the flue gas are attached to the air distribution pipe.

Description

Technical Field

[0001] The invention relates to the field of environmental protection, in particular to a wet multi-tube flue gas purification device and a purification method thereof. Background Art

[0002] Wet dust collector is commonly known as "demister". It is a device that brings dust-containing, sulfur-containing (or waste gas containing dust and other water-soluble harmful substances) into close contact with liquid (usually water), and uses the inertial collision of water droplets and particles or the full mixing of water and water-soluble harmful substances and other effects to capture particles or enlarge particles or retain them in a fixed container to achieve the effect of separating water and water-soluble harmful substances.

[0003] In a wet dust collector, when gas and liquid come into contact, it is completed through the air distribution duct. After long-term use, the inner wall of the air distribution duct will be adhered with dust and sulfur (or dust and some other water-soluble harmful substances), which will affect the subsequent dust removal effect. Summary of the invention

[0004] Purpose of the invention: To provide a wet multi-tube flue gas purification device and a purification method thereof to solve the above-mentioned problems existing in the prior art.

[0005] Technical solution: A wet multi-tube flue gas purification device, comprising:

[0006] A shell body, wherein the shell body is provided with a smoke inlet and a smoke outlet;

[0007] A multi-stage washing unit is provided in the housing, and the multi-stage washing unit comprises:

[0008] The air separation washing unit comprises a collecting pipe arranged in the shell and connected to the flow guiding chamber, and a multi-component air duct connected to the collecting pipe;

[0009] Each set of air ducts includes:

[0010] A driving ring shell is connected to the collecting pipe, wherein a driving unit is arranged in the driving ring shell; and an inner cavity is arranged in the driving ring shell;

[0011] A fixed tube body is connected to the driving ring housing, and the inner wall of the fixed tube body is provided with a connecting thread;

[0012] The movable tube body is adapted to the fixed tube body, the outer wall of the movable tube body is provided with a connecting screw groove adapted to the connecting thread, the inner wall is provided with an assembly groove, a fan frame is installed at the end of the inner wall, a fan shaft is provided on the fan frame, fan blades are provided on the periphery of the fan shaft, and the fan shaft is adapted to the driving unit.

[0013] The flue gas purification device of the present invention designs the air distribution pipe to be a combined type. After the flue gas passes through the air distribution pipe, impurities adhere to the movable pipe body. At this time, the movable pipe body is replaced, thereby preventing the flue gas impurities from adhering to the air distribution pipe and affecting the subsequent purification effect.

[0014] At the same time, the fan shaft and blades are designed in the movable tube body, and the rotation of the blades is driven by the water source to increase the flow rate of the flue gas and the impact force, so that the flue gas is fully in contact with the water bed formed by the impact water replenishment valve, thereby improving the purification effect;

[0015] At the same time, water flows out from the spray port and sprays on the fan blades, and is dispersed by the fan blades to wash the smoke in the movable tube body again, while cleaning the smoke impurities attached to the movable tube body, thereby increasing the service life of the movable tube body.

[0016] In a further embodiment, the multi-stage washing section further comprises a water curtain washing unit, the water curtain washing unit comprising a guide chamber disposed in the housing, a guide plate installed in the guide chamber, and a water ejector installed at an end of the guide plate;

[0017] The guide plate comprises an inclined portion and a vertical portion, and the water source passes through the guide plate to form a water curtain.

[0018] By designing a water curtain washing unit, the flue gas is washed once and twice. During washing, the water ejector first replenishes water in the guide chamber. When the flue gas enters, it hits the guide plate and then impacts downward along the guide plate to contact the water in the guide chamber, removing large particles and large specific gravity dust. Under the impact, the water surface absorbs a small amount of sulfur dioxide (or water-soluble VOC);

[0019] The water ejector sprays water to form a water flow, which flows vertically downward along the guide plate to form a water curtain. The water curtain blocks the incoming flue gas, thereby forming a secondary washing, purification and absorption of the flue gas.

[0020] In a further embodiment, a washing water tank connected to the housing is provided below the air distribution duct;

[0021] The housing is provided with an impact water replenishment valve located above the washing water tank;

[0022] A drainage overflow pipe is connected between the flow guide chamber and the washing water tank;

[0023] Avoid excessive water level in the diversion chamber by designing a drainage overflow pipe;

[0024] A diversion pipe connected to the water tank is provided in the diversion chamber, and a diversion valve is provided on the diversion pipe. The water in the diversion chamber is discharged by designing the diversion pipe to avoid excessive impurities in the water source of the diversion chamber during long-term operation.

[0025] In a further embodiment, a drain groove is provided at the bottom of the housing, a drain channel is connected between the washing water tank and the drain groove, and a drain valve is provided on the drain channel;

[0026] The washing water tank is provided with a water tank overflow pipe which is in communication with the sewage discharge channel;

[0027] Avoid excessively high water levels in the tank by designing a water tank overflow pipe.

[0028] In a further embodiment, the drive unit comprises:

[0029] A driving frame connected to the inner wall of the driving ring housing;

[0030] The transmission member comprises an input shaft inserted into the driving frame and extending partly to the inner cavity of the driving ring housing, an input bevel gear sleeved on the input shaft, and an output bevel gear arranged on the driving frame and meshing with the input bevel gear;

[0031] A plurality of driving blades are provided, located in the inner cavity of the driving ring housing and mounted on the periphery of the input shaft;

[0032] A spiral cushion layer is provided in the inner cavity of the driving ring shell, and the spiral cushion layer on the driving blade side is a low point;

[0033] The top and bottom of the outer wall of the driving ring shell are respectively provided with a water inlet and a water outlet which are connected with the inner cavity of the driving ring shell;

[0034] The water inlet is opened above the high point of the spiral cushion layer, and the water outlet is opened above the low point of the spiral cushion layer.

[0035] A spray port connected to the inner cavity of the driving ring housing is provided on the inner wall of the driving ring housing, and the position of the spray port is higher than the water outlet and lower than the water inlet;

[0036] The water inlet is connected with a driving water inlet pipe, and the driving water inlet pipe is connected with an impact water supply valve.

[0037] By designing a water source drive, on the one hand, the flow rate of the flue gas can be accelerated. On the other hand, since the inside of the shell is a humid environment, the motor drive design involves the design of multiple seals, which is costly.

[0038] When driven by water source, on the one hand, after the water flows out through the water outlet, the smoke entering the spray part through the gaps between the multiple air ducts is washed again;

[0039] On the other hand, water flows out through the spray port and sprays on the fan blades, and is dispersed by the fan blades to wash the smoke in the movable tube body again, while cleaning the smoke impurities attached to the movable tube body.

[0040] In a further embodiment, a spraying part is provided in the housing, and the spraying part is located above the collecting pipe, and comprises:

[0041] A spray water inlet pipe is arranged in the shell and extends partly outside the shell;

[0042] A washing spray head is connected to the spray water inlet pipe.

[0043] In a further embodiment, a demisting part is provided in the housing, and the demisting part is located above the spray part, and includes:

[0044] A plate-type demister, arranged in the housing;

[0045] An atomizing water inlet pipe is arranged in the shell and partially extends outside the shell;

[0046] The backwash spray head is connected with the atomizing water inlet pipe and is located at the upper and lower sides of the plate-type demister.

[0047] By designing the spray section and the demister section, the flue gas purification work is completed again.

[0048] In a further embodiment, the side of the shell is connected to a mounting portion, the side of the shell is provided with an opening and closing window adapted to the mounting portion, and the mounting portion comprises:

[0049] A positioning unit, comprising a moving module connected to the housing, and a lifting module installed on the moving module;

[0050] The mobile module includes a mobile fixed frame connected to the housing, a mobile slide rail mounted on the mobile fixed frame, a mobile motor connected to the mobile fixed frame, a mobile lead screw connected to an output end of the mobile motor, and a mobile slide plate sleeved on the mobile lead screw and adapted to the mobile slide rail;

[0051] The lifting mold includes a lifting fixed frame connected to the movable slide, a lifting cylinder connected to the lifting fixed frame, a lifting connecting frame connected to the output end of the lifting cylinder, and a lifting slide connected to the lifting connecting frame and slidably connected to the lifting fixed frame;

[0052] An assembly plate connected to the lifting module and connected to the lifting slide;

[0053] The assembly parts are designed in multiple groups and installed on the assembly plate. Each group includes an assembly motor and an assembly rod installed at the output end of the assembly motor. The outer wall of the assembly rod is provided with assembly teeth adapted to the assembly groove.

[0054] In a further embodiment, the fan shaft is provided with shaft teeth, and the output bevel gear is provided with output tooth grooves adapted to the shaft teeth.

[0055] The water ejector, impact water supply valve, spray water inlet pipe and atomizing water inlet pipe are connected to an external water source. The driving water inlet pipe and the impact water supply valve share a pipe, or they can be connected to an external water source separately.

[0056] A wet multi-tube flue gas purification method, comprising:

[0057] The flue gas indicated in the present application is dust-containing and sulfur-containing (or waste gas containing dust and some other water-soluble harmful substances), and the purpose of washing is to remove dust-containing and sulfur-containing (or waste gas containing dust and some other water-soluble harmful substances) substances in the flue gas.

[0058] Step 1: Assemble the movable tube body into the fixed tube body through the assembly part, and connect the fan shaft body into the output tooth groove;

[0059] During assembly, multiple movable tube bodies are sleeved on the assembly rod, and the assembly grooves and the assembly teeth are aligned;

[0060] The movable motor drives the movable screw rod to rotate, drives the movable slide plate to move, and drives the assembly with the movable tube body to move into the shell through the opening and closing window;

[0061] Then, the lifting cylinder drives the lifting connection frame to move, drives the lifting slide to move up and down, and then drives the assembly plate to move up and down, drives the movable tube body to contact with the fixed tube body, drives the assembly rod to rotate through the assembly motor, drives the movable tube body to rotate, and screws the movable tube body into the fixed tube body through the adaptation of the connecting screw groove and the connecting thread until the fan shaft body contacts the output bevel gear, and the output tooth groove shaft body teeth are connected at this time. After connection, the assembly part is reset and the opening and closing window is closed. When the movable tube body needs to be replaced after long-term use, the movable tube body is disassembled through the assembly part and a new movable tube body is reinstalled;

[0062] Step 2, the smoke enters the guide chamber through the smoke inlet, and is double washed by the water source in the guide chamber and the water curtain formed by the water ejector and the guide plate;

[0063] During washing, the water ejector first replenishes water in the guide chamber. When the smoke enters, it hits the guide plate and then impacts downward along the guide plate to contact the water in the guide chamber, removing large particles and large specific gravity dust. Under the impact, the water surface absorbs a small amount of sulfur dioxide (or water-soluble VOC);

[0064] The water ejector sprays water to form a water flow, which flows vertically downward along the guide plate to form a water curtain, which blocks the incoming flue gas, thereby forming a secondary washing, purification and absorption of the flue gas;

[0065] Step 3: The flue gas passes through the water curtain and enters the collection pipe, then enters the air distribution pipe, and then impacts the water bed formed by the impact water supply valve, thereby forming three-step washing, purification and absorption of the flue gas;

[0066] Step 4: After being fully washed, the flue gas enters the spraying part through the gaps between the multiple air ducts, and the spraying water bed formed by the washing spray head forms four washing, purification and absorption of the flue gas;

[0067] Step 5: The smoke passes through the spraying part and then enters the defogger part, where it is defogged by the plate defogger and finally discharged through the smoke exhaust port. An induced draft fan can be designed at the smoke exhaust port to accelerate the smoke.

[0068] Step 6, when the flue gas contacts the water bed formed by the impact water replenishment valve through the air distribution duct, water is injected into the water inlet by driving the water inlet pipe, and the water spirals downward through the spiral cushion layer, and flows out through the water outlet and the spray port to form a spiral water flow, which drives the driving blades to rotate, drives the input shaft to rotate, drives the input bevel gear to rotate, drives the output bevel gear to rotate, drives the fan shaft to rotate, drives the fan blades to rotate, and drives the flue gas to impact the water bed formed by the impact water replenishment valve;

[0069] After the water flows out from the water outlet, the smoke entering the spraying part through the gaps between the multiple air ducts is washed again;

[0070] The water flows out from the spray port and sprays on the fan blades. The water is dispersed by the fan blades and then washes the smoke in the movable tube body again, and at the same time, cleans the smoke impurities attached to the movable tube body.

[0071] Step 7. The excess water in the diversion chamber enters the washing water tank through the drainage overflow pipe. The water sprayed from the washing spray head, backwash spray head and impact water replenishment valve falls into the washing water tank and is discharged into the sewage tank through the sewage channel.

[0072] Beneficial effects: The present invention discloses a wet multi-tube flue gas purification device and a purification method thereof. The flue gas purification device of the present invention designs the air distribution pipe to be a combined type. After the flue gas passes through the air distribution pipe, impurities adhere to the movable pipe body. At this time, the movable pipe body is replaced, thereby avoiding the flue gas impurities adhering to the air distribution pipe and affecting the subsequent purification effect;

[0073] At the same time, the fan shaft and blades are designed in the movable tube body, and the rotation of the blades is driven by the water source to increase the flow rate of the flue gas and the impact force, so that the flue gas is fully in contact with the water bed formed by the impact water replenishment valve, thereby improving the purification effect;

[0074] At the same time, water flows out from the spray port and sprays on the fan blades, and is dispersed by the fan blades to wash the smoke in the movable tube body again, while cleaning the smoke impurities attached to the movable tube body, thereby increasing the service life of the movable tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] Figure 1 It is a structural schematic diagram of the present invention.

[0076] Figure 2 It is a schematic diagram of the structure of the multi-stage washing unit of the present invention.

[0077] Figure 3 It is a schematic diagram of the structure of the spray part of the present invention.

[0078] Figure 4 It is a schematic diagram of the structure of the atomization part of the present invention.

[0079] Figure 5 It is a structural schematic diagram of the assembly part of the present invention.

[0080] Figure 6 It is a schematic diagram of the position adjustment unit of the present invention.

[0081] Figure 7 It is a schematic diagram of the structure of the air distribution duct and assembly parts of the present invention.

[0082] Figure 8 It is a schematic diagram of the structure of the driving unit of the present invention.

[0083] Fig. 9 It is a schematic diagram of the shaft body teeth and assembly teeth structure of the present invention.

[0084] The accompanying drawings are marked as follows:

[0085] 1. Shell; 11. Smoke inlet; 12. Smoke exhaust outlet;

[0086] 2. Multi-stage washing section; 21. Water ejector; 22. Guide plate; 23. Collection pipe;

[0087] 24, air distribution duct; 241A, driving ring shell; 241B, driving frame; 241C, output bevel gear; 241C1, output tooth groove; 241D, input bevel gear; 241E, input shaft; 241F, driving blade; 241G, spiral cushion; 241H, water inlet; 241J, water outlet; 241K, spray port;

[0088] 242A, fixed pipe body; 242B, connecting thread;

[0089] 243A, movable tube body; 243B, assembly groove; 243C, fan frame; 243D, fan shaft body; 243D1, shaft body teeth; 243E, fan blades; 243F, connecting screw groove;

[0090] 25. Drive water inlet pipe; 26. Impact water supply valve; 27. Washing water tank; 28. Water tank overflow pipe; 29. ​​Drain valve;

[0091] 3. Sewage tank;

[0092] 4. Spraying part; 41. Spraying water inlet pipe; 42. Washing spray head;

[0093] 5. Demisting unit; 51. Atomizing water inlet pipe; 52. Backwashing spray head; 53. Plate type demisting device;

[0094] 71, moving module; 711, moving fixed frame; 712, moving motor; 713, moving screw rod; 714, moving slide plate;

[0095] 72, lifting module; 721, lifting fixed frame; 722, lifting cylinder; 723, lifting slide; 724, lifting connecting frame;

[0096] 73. Assembly plate;

[0097] 74. Assemble the parts; 741. Assemble the motor; 742. Assemble the rod; 743. Assemble the teeth. DETAILED DESCRIPTION

[0098] The present application relates to a wet multi-tube flue gas purification device and a purification method thereof, which are explained in detail below through a specific implementation method.

[0099] A wet multi-tube flue gas purification device, comprising:

[0100] A housing 1, a multi-stage washing unit 2, a spray unit 4 and a demisting unit 5 arranged in the housing 1, and an assembly unit connected to the outside of the housing 1;

[0101] The housing 1 is provided with a smoke inlet 11 and a smoke outlet;

[0102] A multi-stage washing unit 2 is provided in the housing 1, and the multi-stage washing unit 2 includes:

[0103] The water curtain washing unit comprises a guide chamber arranged in the housing 1, a guide plate 22 installed in the guide chamber, and a water ejector 21 installed at the end of the guide plate 22;

[0104] The guide plate 22 includes an inclined portion and a vertical portion, and the water source passes through the guide plate 22 to form a water curtain.

[0105] By designing a water curtain washing unit, the flue gas is washed once and twice. During washing, the water ejector 21 first replenishes water in the guide chamber. When the flue gas enters, it hits the guide plate 22 and then impacts downward along the guide plate 22 to contact the water in the guide chamber, thereby removing large particles and large specific gravity dust. Under the impact, the water surface absorbs a small amount of sulfur dioxide (or water-soluble VOC);

[0106] The water ejector 21 sprays water to form a water flow, and the water flow vertically downward along the guide plate 22 forms a water curtain, which blocks the incoming flue gas, thereby forming a secondary washing, purification and absorption of the flue gas.

[0107] The air separation washing unit includes a collecting pipe 23 disposed in the housing 1 and connected to the guide chamber, and a multi-component air pipe 24 connected to the collecting pipe 23;

[0108] Each group of air ducts 24 includes:

[0109] The driving ring shell 241A is connected to the collecting pipe 23, and a driving unit is arranged in the driving ring shell 241A; an inner cavity is arranged in the driving ring shell 241A;

[0110] A fixed tube body 242A is connected to the driving ring housing 241A, and a connecting thread 242B is formed on the inner wall of the fixed tube body 242A;

[0111] The movable tube body 243A is adapted to the fixed tube body 242A. The outer wall of the movable tube body 243A is provided with a connecting screw groove 243F adapted to the connecting thread 242B, the inner wall is provided with an assembly groove 243B, and a fan frame 243C is installed at the end of the inner wall. A fan shaft 243D is provided on the fan frame 243C, and fan blades 243E are provided around the periphery of the fan shaft 243D. The fan shaft 243D is adapted to the driving unit.

[0112] The flue gas purification device of the present invention designs the air distribution pipe 24 as a modular type. After the flue gas passes through the air distribution pipe 24, impurities adhere to the movable pipe body 243A. At this time, the movable pipe body 243A is replaced, thereby preventing the flue gas impurities from adhering to the air distribution pipe 24 and affecting the subsequent purification effect.

[0113] At the same time, a fan shaft 243D and a fan blade 243E are designed in the movable tube body 243A, and the fan blade 243E is driven to rotate by the water source to increase the flow rate of the flue gas and the impact force, so that the flue gas is fully in contact with the water bed formed by the impact water replenishment valve 26, thereby improving the purification effect;

[0114] At the same time, water flows out through the spray port 241K and sprays on the fan blades 243E. The fan blades 243E disperse the smoke in the movable tube body 243A and wash it again. At the same time, the smoke impurities attached to the movable tube body 243A are cleaned, thereby increasing the service life of the movable tube body 243A.

[0115] A washing water tank 27 connected to the housing 1 is provided below the air distribution pipe 24;

[0116] The housing 1 is provided with an impact water supply valve 26 located above the washing water tank 27;

[0117] A drainage overflow pipe is connected between the diversion chamber and the washing water tank 27;

[0118] Avoid excessive water level in the diversion chamber by designing a drainage overflow pipe;

[0119] A diversion pipe connected to the water tank is provided in the diversion chamber, and a diversion valve is provided on the diversion pipe. The water in the diversion chamber is discharged by designing the diversion pipe to avoid excessive impurities in the water source of the diversion chamber during long-term operation.

[0120] A drain tank 3 is provided at the bottom of the housing 1, a drain channel is connected between the washing water tank 27 and the drain tank 3, and a drain valve 29 is provided on the drain channel;

[0121] The washing water tank 27 is provided with a water tank overflow pipe 28 which is in communication with the sewage discharge channel;

[0122] The water tank overflow pipe 28 is designed to prevent the water level in the water tank from being too high.

[0123] The driving unit comprises:

[0124] The driving frame 241B is connected to the inner wall of the driving ring housing 241A;

[0125] The transmission member includes an input shaft 241E inserted into the driving frame 241B and extending partly to the inner cavity of the driving ring housing 241A, an input bevel gear 241D sleeved on the input shaft 241E, and an output bevel gear 241C disposed on the driving frame 241B and meshing with the input bevel gear 241D;

[0126] The driving blades 241F are designed in multiple numbers, are located in the inner cavity of the driving ring shell 241A, and are installed on the periphery of the input shaft 241E;

[0127] A spiral gasket 241G is provided in the inner cavity of the driving ring shell 241A, and the spiral gasket 241G on the driving blade 241F side is a low point;

[0128] The top and bottom of the outer wall of the driving ring shell 241A are respectively provided with a water inlet 241H and a water outlet 241J which are connected to the inner cavity of the driving ring shell 241A;

[0129] The water inlet 241H is opened above the high point of the spiral cushion layer 241G, and the water outlet 241J is opened above the low point of the spiral cushion layer 241G.

[0130] A spray port 241K is provided on the inner wall of the driving ring shell 241A and is connected to the inner cavity of the driving ring shell 241A. The spray port 241K is located higher than the water outlet 241J and lower than the water inlet 241H.

[0131] The water inlet 241H is connected to a driving water inlet pipe 25 , and the driving water inlet pipe 25 is connected to an impact water replenishment valve 26 .

[0132] By designing a water source drive, on the one hand, the flow rate of the flue gas can be accelerated. On the other hand, since the interior of the shell 1 is a humid environment, the motor drive design involves the design of multiple seals, which is costly.

[0133] When driven by a water source, on the one hand, after the water flows out through the water outlet 241J, the smoke entering the spray part 4 through the gaps between the multiple air ducts is washed again;

[0134] On the other hand, water flows out through the spray port 241K and sprays on the fan blades 243E. The fan blades 243E disperse the smoke in the movable tube body 243A and wash the smoke impurities attached to the movable tube body 243A.

[0135] The spraying part 4 is located above the collecting pipe 23 and includes:

[0136] A spray water inlet pipe 41 is arranged in the housing 1 and partially extends outside the housing 1;

[0137] The washing spray head 42 is connected to the spray water inlet pipe 41 .

[0138] The demisting unit 5 is located above the spraying unit 4 and includes:

[0139] A plate-type demister 53 is arranged in the housing 1;

[0140] An atomizing water inlet pipe 51 is disposed in the housing 1 and partially extends outside the housing 1;

[0141] The backwash spray head 52 is connected to the atomizing water inlet pipe 51 and is located at the upper and lower sides of the plate-type demister 53 .

[0142] By designing the spraying section 4 and the demisting section 5, the fume purification work is completed again.

[0143] The assembly part is arranged on the side of the housing 1, and the side of the housing 1 is provided with an opening and closing window adapted to the assembly part, and the assembly part comprises:

[0144] The positioning unit includes a moving module 71 connected to the housing 1 and a lifting module 72 installed on the moving module 71;

[0145] The mobile module 71 includes a mobile fixed frame 711 connected to the housing 1, a mobile slide rail installed on the mobile fixed frame 711, a mobile motor 712 connected to the mobile fixed frame 711, a mobile lead screw 713 connected to the output end of the mobile motor 712, and a mobile slide plate 714 sleeved on the mobile lead screw 713 and adapted to the mobile slide rail;

[0146] The lifting mold includes a lifting fixed frame 721 connected to the moving slide 714, a lifting cylinder 722 connected to the lifting fixed frame 721, a lifting connecting frame 724 connected to the output end of the lifting cylinder 722, and a lifting slide 723 connected to the lifting connecting frame 724 and slidably connected to the lifting fixed frame 721;

[0147] The assembly plate 73 is connected to the lifting module 72 and connected to the lifting slide 723;

[0148] The assembly parts 74 are designed in multiple groups and installed on the assembly plate 73. Each group includes an assembly motor 741 and an assembly rod 742 installed at the output end of the assembly motor 741. The outer wall of the assembly rod 742 is provided with assembly teeth 743 adapted to the assembly groove 243B.

[0149] The fan shaft 243D is provided with shaft teeth 243D1 , and the output bevel gear 241C is provided with output tooth grooves 241C1 adapted to the shaft teeth 243D1 .

[0150] The water ejector 21, the impact water supply valve 26, the spray water inlet pipe 41 and the atomization water inlet pipe 51 are connected to an external water source, and the driving water inlet pipe 25 and the impact water supply valve 26 share a pipe, or can be connected to an external water source separately.

[0151] The external water source is pressurized through the pump body to form a water bed and driving force.

[0152] When the driving water inlet pipe 25 and the impact water supply valve 26 share a pipe, the rotation speed of the fan blade 243E can be associated with the water bed strength of the impact water supply valve 26, so that the strength of the fan blade 243E and the impact water supply valve 26 are similar, thereby improving work efficiency.

[0153] When connected to a water source alone, it can be controlled independently to control the corresponding work intensity according to demand.

[0154] A wet multi-tube flue gas purification method, comprising:

[0155] The flue gas indicated in the present application is dust-containing and sulfur-containing (or waste gas containing dust and some other water-soluble harmful substances), and the purpose of washing is to remove dust-containing and sulfur-containing (or waste gas containing dust and some other water-soluble harmful substances) substances in the flue gas.

[0156] Step 1: Assemble the movable tube 243A into the fixed tube 242A through the assembly part, and connect the fan shaft 243D into the output tooth groove 241C1;

[0157] During assembly, the multiple movable tubes 243A are placed on the assembly rod 742 and aligned with the assembly grooves 243B and the assembly teeth 743;

[0158] The movable screw rod 713 is driven to rotate by the movable motor 712, and the movable slide plate 714 is driven to move, and the assembly part 74 with the movable tube body 243A is driven to move into the housing 1 through the opening and closing window;

[0159] Then, the lifting connecting frame 724 is driven to move by the lifting cylinder 722, and the lifting slide 723 is driven to move up and down, thereby driving the assembly plate 73 to move up and down, driving the movable tube body 243A to contact with the fixed tube body 242A, and the assembly motor 741 drives the assembly rod 742 to rotate, driving the movable tube body 243A to rotate, and the movable tube body 243A is screwed into the fixed tube body 242A through the adaptation of the connecting screw groove 243F and the connecting thread 242B, until the fan shaft body 243D contacts the output bevel gear 241C, and the output tooth groove 241C1 shaft body tooth 243D1 is connected. After the connection, the assembly part is reset to close the opening and closing window. When the movable tube body 243A needs to be replaced after being used for a long time, the movable tube body 243A is disassembled by the assembly part and a new movable tube body 243A is reinstalled;

[0160] Step 2, the smoke enters the guide chamber through the smoke inlet 11, and is double washed by the water source in the guide chamber and the water curtain formed by the water ejector 21 and the guide plate 22;

[0161] During washing, the water ejector 21 first replenishes water in the guide chamber, and when the smoke enters, it hits the guide plate 22 and then impacts downward along the guide plate 22 to contact the water in the guide chamber, removing large particles and large specific gravity particles. Under the impact, the water surface absorbs a small amount of sulfur dioxide (or water-soluble VOC);

[0162] The water ejector 21 sprays water to form a water flow, and the water flow flows vertically downward along the guide plate 22 to form a water curtain, which blocks the incoming flue gas, thereby forming a secondary washing, purification and absorption of the flue gas;

[0163] Step 3, the flue gas passes through the water curtain and enters the collecting pipe 23, then enters the air distribution pipe 24, and then impacts the water bed formed by the impact water supply valve 26, thereby forming a three-step washing, purification and absorption of the flue gas;

[0164] Step 4: After being fully washed, the flue gas enters the spraying part 4 through the gaps between the multiple air ducts, and the spraying water bed formed by the washing spray head 42 performs four washing, purification and absorption on the flue gas;

[0165] Step 5, the smoke enters the demister 5 after passing through the spraying part 4, and is demistered by the plate demister 53, and finally discharged through the smoke exhaust port 12. An induced draft fan can be designed at the smoke exhaust port 12 to accelerate the induced smoke;

[0166] Step 6, when the flue gas contacts the water bed formed by the impact water replenishment valve through the air distribution pipe 24, water is injected into the water inlet 241H by driving the water inlet pipe 25, and the water spirals downward through the spiral cushion layer 241G, and flows out through the water outlet 241J and the spray port 241K to form a spiral water flow, which drives the driving blade 241F to rotate, drives the input shaft 241E to rotate, drives the input bevel gear 241D to rotate, drives the output bevel gear 241C to rotate, drives the fan shaft 243D to rotate, drives the fan blade 243E to rotate, and drives the flue gas to impact the water bed formed by the impact water replenishment valve 26;

[0167] After the water flows out through the water outlet 241J, the smoke entering the spraying part 4 through the gaps between the multiple air ducts is washed again;

[0168] The water flows out through the spray port 241K and sprays on the fan blades 243E. The fan blades 243E disperse the smoke in the movable tube body 243A and wash the smoke impurities attached to the movable tube body 243A.

[0169] Step 7, the excess water in the diversion chamber enters the washing water tank 27 through the drainage overflow pipe, and the water sprayed by the washing spray head 42, the backwash spray head 52 and the impact water supply valve 26 falls into the washing water tank 27 and is discharged into the sewage tank 3 through the sewage channel.

[0170] Working principle description:

[0171] Assemble the movable tube 243A into the fixed tube 242A through the assembly part, and connect the fan shaft 243D into the output tooth groove 241C1;

[0172] During assembly, the multiple movable tubes 243A are placed on the assembly rod 742 and aligned with the assembly grooves 243B and the assembly teeth 743;

[0173] The movable screw rod 713 is driven to rotate by the movable motor 712, and the movable slide plate 714 is driven to move, and the assembly part 74 with the movable tube body 243A is driven to move into the housing 1 through the opening and closing window;

[0174] Then, the lifting connecting frame 724 is driven to move by the lifting cylinder 722, and the lifting slide 723 is driven to move up and down, thereby driving the assembly plate 73 to move up and down, driving the movable tube body 243A to contact with the fixed tube body 242A, and the assembly motor 741 drives the assembly rod 742 to rotate, driving the movable tube body 243A to rotate, and the movable tube body 243A is screwed into the fixed tube body 242A through the adaptation of the connecting screw groove 243F and the connecting thread 242B, until the fan shaft body 243D contacts the output bevel gear 241C, and the output tooth groove 241C1 shaft body tooth 243D1 is connected. After the connection, the assembly part is reset to close the opening and closing window. When the movable tube body 243A needs to be replaced after being used for a long time, the movable tube body 243A is disassembled by the assembly part and a new movable tube body 243A is reinstalled;

[0175] The smoke enters the guide chamber through the smoke inlet 11 and is double washed by the water source in the guide chamber and the water curtain formed by the water ejector 21 and the guide plate 22;

[0176] During washing, the water ejector 21 first replenishes water in the guide chamber, and when the smoke enters, it hits the guide plate 22 and then impacts downward along the guide plate 22 to contact the water in the guide chamber, removing large particles and large specific gravity particles. Under the impact, the water surface absorbs a small amount of sulfur dioxide (or water-soluble VOC);

[0177] The water ejector 21 sprays water to form a water flow, and the water flow flows vertically downward along the guide plate 22 to form a water curtain, which blocks the incoming flue gas, thereby forming a secondary washing, purification and absorption of the flue gas;

[0178] The flue gas passes through the water curtain and enters the collecting pipe 23, then enters the air distribution pipe 24, and then impacts the water bed formed by the water supply valve 26, thereby forming a three-step washing, purification and absorption of the flue gas;

[0179] After being fully washed, the flue gas enters the spraying part 4 through the gaps between the multiple air ducts, and the spraying water bed formed by the washing spray head 42 forms four washing, purification and absorption of the flue gas;

[0180] The smoke passes through the spraying part 4 and enters the demister part 5, where it is demistered by the plate demister 53 and finally discharged through the smoke outlet 12. An induced draft fan can be designed at the smoke outlet 12 to accelerate the smoke.

[0181] When the flue gas contacts the water bed formed by the impact water replenishment valve through the air distribution pipe 24, water is injected into the water inlet 241H by driving the water inlet pipe 25. The water spirals downward through the spiral cushion layer 241G, and flows out through the water outlet 241J and the spray port 241K to form a spiral water flow, which drives the driving blade 241F to rotate, drives the input shaft 241E to rotate, drives the input bevel gear 241D to rotate, drives the output bevel gear 241C to rotate, drives the fan shaft 243D to rotate, drives the fan blade 243E to rotate, and drives the flue gas to impact the water bed formed by the impact water replenishment valve 26;

[0182] After the water flows out through the water outlet 241J, the smoke entering the spraying part 4 through the gaps between the multiple air ducts is washed again;

[0183] The water flows out through the spray port 241K and sprays on the fan blades 243E. The fan blades 243E disperse the smoke in the movable tube body 243A and wash the smoke impurities attached to the movable tube body 243A.

[0184] The excess water in the diversion chamber enters the washing water tank 27 through the drainage overflow pipe, and the water sprayed by the washing spray head 42, the backwash spray head 52 and the impact water replenishment valve 26 falls into the washing water tank 27 and is discharged into the sewage tank 3 through the sewage channel.

[0185] The preferred specific embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above specific embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A wet multi-tube flue gas purification device, comprising: A housing (1), wherein the housing (1) is provided with a smoke inlet (11) and a smoke outlet; The invention is characterized in that a multi-stage washing section (2) is provided in the housing (1), and the multi-stage washing section (2) comprises: An air separation washing unit comprises a collecting pipe (23) arranged in the housing (1) and connected to the flow guide chamber, and a multi-component air pipe (24) connected to the collecting pipe (23); Each set of air ducts (24) comprises: A driving ring shell (241A) is connected to the collecting pipe (23), wherein a driving unit is arranged in the driving ring shell (241A); an inner cavity is arranged in the driving ring shell (241A); A fixed tube body (242A) is connected to the driving ring housing (241A), and a connecting thread (242B) is formed on the inner wall of the fixed tube body (242A); The movable tube body (243A) is adapted to the fixed tube body (242A); the outer wall of the movable tube body (243A) is provided with a connecting screw groove (243F) adapted to the connecting screw thread (242B); the inner wall is provided with an assembly groove (243B); a fan frame (243C) is installed at the end of the inner wall; a fan shaft (243D) is provided on the fan frame (243C); fan blades (243E) are provided around the fan shaft (243D); and the fan shaft (243D) is adapted to the driving unit.

2. A wet multi-tube flue gas purification device according to claim 1, characterized in that: The multi-stage washing section (2) also includes a water curtain washing unit, comprising a guide chamber arranged in the shell (1), a guide plate (22) installed in the guide chamber, and a water ejector (21) installed at the end of the guide plate (22).

3. The wet multi-tube flue gas purification equipment according to claim 1 is characterized in that: A washing water tank (27) connected to the housing (1) is provided below the air distribution pipe (24); The housing (1) is provided with an impact water replenishment valve (26) located above the washing water tank (27); A drainage overflow pipe is connected between the flow guide chamber and the washing water tank (27).

4. A wet multi-tube flue gas purification device according to claim 3, characterized in that: A sewage trough (3) is provided at the bottom of the housing (1); a sewage channel is connected between the washing water tank (27) and the sewage trough (3); and a sewage valve (29) is provided on the sewage channel; The washing water tank (27) is provided with a water tank overflow pipe (28) which is in communication with the sewage discharge channel.

5. The wet multi-tube flue gas purification equipment according to claim 1 is characterized in that: The driving unit comprises: A driving frame (241B) connected to the inner wall of the driving ring housing (241A); A transmission member, comprising an input shaft (241E) inserted into the driving frame (241B) and extending partly to the inner cavity of the driving ring housing (241A), an input bevel gear (241D) sleeved on the input shaft (241E), and an output bevel gear (241C) disposed on the driving frame (241B) and meshing with the input bevel gear (241D); A plurality of driving blades (241F) are provided, located in the inner cavity of the driving ring housing (241A) and mounted on the periphery of the input shaft (241E); A spiral cushion layer (241G) is provided in the inner cavity of the driving ring shell (241A), and the spiral cushion layer (241G) on the driving blade (241F) side is a low point; The top and bottom of the outer wall of the driving ring shell (241A) are respectively provided with a water inlet (241H) and a water outlet (241J) which are in communication with the inner cavity of the driving ring shell (241A); A spray port (241K) communicating with the inner cavity of the driving ring housing (241A) is provided on the inner wall of the driving ring housing (241A); The water inlet (241H) is connected to a driving water inlet pipe (25), and the driving water inlet pipe (25) is connected to an impact water replenishment valve (26).

6. The wet multi-tube flue gas purification equipment according to claim 1 is characterized in that: A spraying portion (4) is provided in the housing (1), and the spraying portion (4) is located above the collecting pipe (23) and comprises: A spray water inlet pipe (41) is arranged in the shell (1) and partially extends outside the shell (1); The washing spray head (42) is connected to the spray water inlet pipe (41).

7. The wet multi-tube flue gas purification equipment according to claim 1 is characterized in that: The housing (1) is provided with a demisting section (5), the demisting section (5) being located above the spray section (4) and comprising: A plate-type demister (53) is arranged in the housing (1); An atomizing water inlet pipe (51) is arranged in the housing (1) and partially extends outside the housing (1); The backwash spray head (52) is connected to the atomizing water inlet pipe (51) and is located at the upper and lower sides of the plate-type demister (53).

8. The wet multi-tube flue gas purification equipment according to claim 1 is characterized in that: The side of the shell (1) is connected to a mounting portion, and the side of the shell (1) is provided with an opening and closing window adapted to the mounting portion, and the mounting portion comprises: A positioning unit, comprising a moving module (71) connected to the housing (1), and a lifting module (72) mounted on the moving module (71); An assembly plate (73) connected to the lifting module (72); The assembly parts (74) are designed in multiple groups and are installed on the assembly plate (73). Each group includes an assembly motor (741) and an assembly rod (742) installed at the output end of the assembly motor (741). The outer wall of the assembly rod (742) is provided with assembly teeth (743) adapted to the assembly groove (243B).

9. A wet multi-tube flue gas purification device according to claim 8, characterized in that: The fan shaft (243D) is provided with shaft teeth (243D1), and the output bevel gear (241C) is provided with output tooth grooves (241C1) adapted to the shaft teeth (243D1).

10. A wet multi-tube flue gas purification method, based on the wet multi-tube flue gas purification equipment according to any one of claims 1 to 9, characterized in that: include: Step 1: Assemble the movable tube body (243A) into the fixed tube body (242A) through the assembly part, and connect the fan shaft body (243D) into the output tooth groove (241C1); Step 2, the smoke enters the guide chamber through the smoke inlet (11), and is double washed by the water source in the guide chamber and the water curtain formed by the water ejector (21) and the guide plate (22); Step 3, the flue gas passes through the water curtain and enters the collecting pipe (23), then enters the air distribution pipe (24), and then impacts the water bed formed by the impact water supply valve (26), thereby achieving three-step washing, purification and absorption of the flue gas; Step 4: After being fully washed, the flue gas enters the spraying part (4) through the gaps between the multiple air ducts, and the spraying water bed formed by the washing spray head (42) performs four washing, purification and absorption on the flue gas; Step 5: The smoke passes through the spraying section (4) and enters the demisting section (5), where it is demisted by the plate-type demister (53) and finally discharged through the smoke exhaust port (12).

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