Flue gas dust falling device for desulfurization and denitrification equipment of furnace kiln

Abstract

The utility model provides a flue gas dust falling device for desulfurization and denitrification equipment of a furnace kiln, and relates to the technical field of flue dust removal. The flue gas dust falling device of the kiln desulfurization and denitrification equipment comprises a box body and a water containing tank, the water containing tank is fixedly communicated to the bottom of the box body, and a second filter screen is fixedly connected to the interior of the box body. According to the flue gas dust falling device for the desulfurization and denitrification equipment of the furnace kiln, a plurality of second reciprocating screw rods are connected with a plurality of reciprocating plates through nut pairs respectively, a plurality of square rods pull a plurality of circular mounting seats to move upwards, at the moment, a plurality of first gears are engaged with a plurality of racks respectively, a plurality of rotating rods drive a plurality of second bevel gears to rotate, and dust falling is achieved. The second bevel gear is in meshed connection with the first bevel gear, so that the annular cleaning brush rotates in the circular mounting seat, when the circular mounting seat moves on the outer side of the filter cartridge, the annular cleaning brush can clean the surface of the filter cartridge, a small part of smoke dust is prevented from adhering to the filter cartridge, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to a flue gas dust reduction device, in particular to a flue gas dust reduction device for furnace desulfurization and denitration equipment, belonging to the technical field of flue dust removal. Background Art

[0002] Industrial furnaces produce a lot of exhaust gas with a lot of smoke during the combustion process. The smoke exhaust system is to lead the smoke from the boiler to a tall chimney. As the smoke rises in the chimney, the dust continues to fall, and the remaining smoke and fine smoke are discharged into the atmosphere from the smoke. This exhaust system often fails to meet the emission standards, and some harmful gases and fine dust are discharged into the atmosphere, causing environmental pollution.

[0003] The current publication number is CN218924203U. A dust reduction device for flue gas of desulfurization and denitrification equipment of industrial furnaces includes a smoke inlet pipe, a box, a baffle, a filter cartridge, a flushing assembly, a smoke exhaust mechanism and a smoke exhaust pipe. The smoke inlet pipe is used to introduce smoke. The box is connected to the smoke inlet pipe and is used to filter the smoke. A connecting plate is arranged in the box cavity, and a through hole is arranged in the connecting plate. The smoke flows from the first cavity into the second cavity through the through hole. The baffle is arranged in the box and connected to the box.

[0004] In the above scheme, although there are many benefits, there are also the following disadvantages: some of the smoke and dust filtered out by the filter cartridge will adhere to the filter cartridge. When the filter cartridge needs to be cleaned, the flushing component flushes the filter cartridge, and the flushing direction is opposite to the flue gas flow direction, blowing the smoke and dust on the filter cartridge into the box. However, the effect of cleaning the filter cartridge is not very ideal. During cleaning, a small amount of smoke and dust may still adhere to the filter cartridge, reducing the practicability of the device. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a flue gas dust reduction device for furnace desulfurization and denitrification equipment in order to solve the above-mentioned problems, so as to solve the problem that part of the smoke dust filtered out by the filter cartridge in the prior art will adhere to the filter cartridge. When the filter cartridge needs to be cleaned, the flushing component flushes the filter cartridge, and the flushing direction is opposite to the flue gas flow direction, so that the smoke dust on the filter cartridge is blown off into the box body. However, the effect of cleaning the filter cartridge is not very ideal. During cleaning, a small amount of smoke dust may still adhere to the filter cartridge, reducing the practicability of the device.

[0007] (II) Technical solution

[0008] The utility model is implemented through the following technical scheme: a flue gas dust reduction device for furnace desulfurization and denitrification equipment comprises a box body and a water tank, the water tank is fixedly connected to the bottom of the box body, a second filter screen is fixedly connected inside the box body, a cleaning component is provided on one side of the second filter screen, a plurality of filter cartridges are provided on the other side of the second filter screen, a water spray component is provided between the plurality of filter cartridges, a circular mounting seat is provided at the bottom end of the plurality of filter cartridges, an annular cleaning brush is rotatably connected inside the circular mounting seat, a first bevel gear is fixedly connected to the outside of the annular cleaning brush, a second bevel gear is meshedly connected to the outside of the first bevel gear, a rotating rod is fixedly connected to the outside of the second bevel gear, one end of the rotating rod is fixedly connected to the first gear, a rack is meshedly connected to the outside of the first gear, a square rod is fixedly connected to the top of the plurality of circular mounting seats, a reciprocating plate is fixedly connected to the top of the plurality of square rods, a second reciprocating screw rod is provided at the bottom end of the plurality of reciprocating plates, the plurality of reciprocating plates are connected to the outside of the plurality of second reciprocating screw rods through a nut pair, and a driving assembly is provided between the plurality of second reciprocating screw rods.

[0009] Preferably, a smoke inlet pipe is installed on one side of the box body, a drain pipe is installed on one side of the water tank, and a valve is installed on the outside of the drain pipe. The water in the water tank can be discharged through the drain pipe, so that the water can be replaced.

[0010] Preferably, the cleaning assembly includes a first reciprocating screw, which is arranged on one side of the second filter screen, and a cleaning plate is connected to the outer side of the first reciprocating screw through a nut pair, and the cleaning plate is in contact with the second filter screen. A limiting rod is provided on the outer side of the first reciprocating screw, and the limiting rod is fixedly connected to the top end of the box body, and the cleaning plate is slidably connected to the outer side of the limiting rod. The top end of the first reciprocating screw passes through the top end of the box body and is rotatably connected to the box body, and a first sprocket is fixedly connected to the outer side of the first reciprocating screw. The setting of the limiting rod improves the stability of the up and down movement of the cleaning plate.

[0011] Preferably, a fixing plate is provided on the other side of the second filter screen, and the fixing plates are fixedly connected to the second filter screen and the box body, and the top ends of the plurality of filter cartridges pass through the fixing plate and are fixedly connected to the fixing plate.

[0012] Preferably, the water spray assembly includes a square water pipe, which is arranged on the top of the fixed plate, and a plurality of atomizing water spray heads are installed at the bottom of the square water pipe, and the plurality of atomizing water spray heads extend to the interior of a plurality of filter cartridges respectively. A connecting pipe is fixedly connected to the outside of the square water pipe, and the connecting pipe passes through the inside of the box body and is fixedly connected to the box body. A water pump is fixedly connected to the outside of the water tank, and the connecting pipe is installed at the output end of the water pump, and the output end of the water pump is fixedly connected to the water tank. A first filter screen is fixedly connected to the inside of the water tank, and a discharge port is opened on the front side of the water tank, and a convex sealing plate is provided on the front side of the water tank, and the convex sealing plate is arranged inside the discharge port, and the convex sealing plate is fixed to the water tank by bolts.

[0013] Preferably, the outer side of the rotating rod is rotatably connected to a fixed block, the fixed block is fixedly connected to the bottom of the circular mounting seat, the rack is fixedly connected to the bottom of the fixed plate, the top ends of the multiple square rods pass through the fixed plate and are slidably connected to the fixed plate, the top ends of the multiple square rods pass through the top end of the box body and are slidably connected to the box body, the multiple second reciprocating screw rods are rotatably connected to the top of the box body, the outer sides of the multiple second reciprocating screw rods are rotatably connected to an L-shaped plate, the multiple L-shaped plates are fixedly connected to the box body, one of the second reciprocating screw rods is fixedly connected to a second sprocket on the outer side, the second sprocket is connected to the first sprocket by a chain transmission connection, and the second sprocket is connected to the first sprocket by a chain transmission connection, which plays a transmission role in the rotation of the first reciprocating screw rod.

[0014] Preferably, the driving assembly includes a smoke exhaust box, which is fixedly connected to the top of the box body, and the outside of the smoke exhaust box is fixedly connected to a smoke exhaust pipe, a rotating rod is provided inside the smoke exhaust box, and the bottom end of the rotating rod is fixedly connected to an exhaust fan, and the top of the rotating rod passes through the top of the inside of the smoke exhaust box and is rotatably connected to the smoke exhaust box, a large gear is fixedly connected to the outside of the rotating rod, and a plurality of small gears are meshed and connected to the outside of the large gear, and the plurality of small gears are respectively fixedly connected to the outsides of a plurality of second reciprocating screw rods, and a driving motor is provided on the top of the box body, and the output end of the driving motor is fixedly connected to the rotating rod.

[0015] The utility model provides a flue gas dust reduction device for furnace desulfurization and denitrification equipment, which has the following beneficial effects:

[0016] 1. The flue gas dust reduction device of the furnace desulfurization and denitrification equipment has multiple second reciprocating screws connected to multiple reciprocating plates through nut pairs, and multiple circular mounting seats are pulled upward by multiple square rods. At this time, multiple first gears are respectively engaged with multiple racks, and multiple rotating rods drive multiple second bevel gears to rotate. The second bevel gears are engaged with the first bevel gears, so that the annular cleaning brush can rotate inside the circular mounting seat. When the circular mounting seat moves on the outside of the filter cartridge, the annular cleaning brush can clean the surface of the filter cartridge to prevent a small amount of smoke from adhering to the filter cartridge, thereby improving the practicability of the device.

[0017] 2. The flue gas dust reduction device of the furnace desulfurization and denitrification equipment, wherein a second reciprocating screw drives the second sprocket to rotate, the second sprocket is connected to the first sprocket through a chain transmission, the first reciprocating screw rotates, and the first reciprocating screw is connected to the cleaning plate through a nut pair. Under the action of the limit rod, the cleaning plate can clean the surface of the second filter to prevent large particles of dust from clogging the second filter.

[0018] 3. The flue gas dust reduction device of the furnace desulfurization and denitrification equipment can pump out water at the bottom of the water tank when the water pump is started, and discharge it into the square water pipe through the connecting pipe, and finally discharge it from multiple atomizing water nozzles. The pre-filtered flue gas can be filtered again through multiple filter cartridges. When the flue gas filtered by multiple filter cartridges is discharged to the upper end of the fixed plate, the atomizing water nozzle can spray water inside the filter cartridge, which can again carry out dust reduction treatment on the fine impurities in the flue gas, and can improve the effect of flue gas purification treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the box of the utility model;

[0021] Figure 3 For this utility model Figure 2 A magnified view of the structure of part A;

[0022] Figure 4 This is a schematic diagram of the smoke exhaust box structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the water tank of the utility model.

[0024]

Main component symbol description

[0025] 1. Box body; 2. Water tank; 3. Convex sealing plate; 4. First filter; 5. Fixed plate; 6. Filter cartridge; 7. Square water pipe; 8. Connecting pipe; 9. Second filter; 10. Cleaning plate; 11. First reciprocating screw; 12. Round mounting seat; 13. Square rod; 14. Reciprocating plate; 15. Second reciprocating screw; 16. Pinion; 17. Smoke exhaust box; 18. Exhaust fan; 19. Rotating rod; 20. Large gear; 21. Smoke exhaust pipe; 22. Annular cleaning brush; 23. First bevel gear; 24. Second bevel gear; 25. Rotating rod; 26. Rack; 27. First gear. DETAILED DESCRIPTION

[0026] The utility model embodiment provides a flue gas dust reduction device for furnace desulfurization and denitrification equipment.

[0027] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5, including a box body 1 and a water tank 2, a smoke inlet pipe is installed on one side of the box body 1, a drain pipe is installed on one side of the water tank 2, a valve is installed on the outside of the drain pipe, the water tank 2 is fixedly connected to the bottom of the box body 1, a second filter screen 9 is fixedly connected inside the box body 1, a cleaning component is provided on one side of the second filter screen 9, a plurality of filter cartridges 6 are provided on the other side of the second filter screen 9, a fixing plate 5 is provided on the other side of the second filter screen 9, the fixing plates 5 are fixedly connected to the second filter screen 9 and the box body 1, the tops of the plurality of filter cartridges 6 all pass through the fixing plate 5 and are fixedly connected to the fixing plate 5, a water spraying component is provided between the plurality of filter cartridges 6, a circular mounting seat 12 is provided at the bottom end of the plurality of filter cartridges 6, an annular cleaning brush 22 is rotatably connected inside the circular mounting seat 12, a first bevel gear 23 is fixedly connected to the outside of the annular cleaning brush 22, a second bevel gear 24 is meshingly connected to the outside of the first bevel gear 23, a rotating rod 25 is fixedly connected to the outside of the second bevel gear 24, one end of the rotating rod 25 is fixedly connected to the first gear 27, and the outside of the first gear 27 is meshingly connected to The rack 26 and the rotating rod 25 are rotatably connected with a fixed block on the outside, and the fixed block is fixedly connected to the bottom of the circular mounting seat 12. The rack 26 is fixedly connected to the bottom of the fixed plate 5. The tops of the multiple circular mounting seats 12 are fixedly connected with square rods 13. The tops of the multiple square rods 13 all penetrate the fixed plate 5 and are slidably connected to the fixed plate 5. The tops of the multiple square rods 13 all pass through the top of the box body 1 and are slidably connected to the box body 1. The tops of the multiple square rods 13 are fixedly connected with reciprocating plates 14. The bottoms of the multiple reciprocating plates 14 are provided with second reciprocating screw rods 15. The multiple reciprocating plates 14 are connected to the outsides of the multiple second reciprocating screw rods 15 through nut pairs. The multiple second reciprocating screw rods 15 are rotatably connected to the top of the box body 1. The outsides of the multiple second reciprocating screw rods 15 are rotatably connected to L-shaped plates. The multiple L-shaped plates are fixedly connected to the box body 1. A second sprocket is fixedly connected to the outside of one of the second reciprocating screw rods 15. The second sprocket is connected to the first sprocket through a chain transmission. A driving assembly is provided between the multiple second reciprocating screw rods 15.

[0028] The driving component includes a smoke exhaust box 17, which is fixedly connected to the top of the box body 1, and a smoke exhaust pipe 21 is fixedly connected to the outside of the smoke exhaust box 17. A rotating rod 19 is provided inside the smoke exhaust box 17, and an exhaust fan 18 is fixedly connected to the bottom end of the rotating rod 19. The top of the rotating rod 19 passes through the top of the inside of the smoke exhaust box 17 and is rotatably connected to the smoke exhaust box 17. A large gear 20 is fixedly connected to the outside of the rotating rod 19, and a plurality of small gears 16 are meshed and connected to the outside of the large gear 20. The plurality of small gears 16 are respectively fixedly connected to the outsides of a plurality of second reciprocating screw rods 15. A driving motor is provided on the top of the box body 1, and the output end of the driving motor is fixedly connected to the rotating rod 19.

[0029] Specifically, by starting the drive motor, there is no specific limitation on the drive motor model, which is subject to the adapter equipment. The output end of the drive motor drives the rotating rod 19 to rotate, and the rotating rod 19 drives the exhaust fan 18 to rotate. The filtered smoke can be discharged through the exhaust pipe 21 through the exhaust fan 18.

[0030] The rotating rod 19 drives the large gear 20 to rotate at the same time, and the large gear 20 is meshed with multiple small gears 16 to realize the synchronous rotation of multiple second reciprocating screws 15. The multiple second reciprocating screws 15 are respectively connected to the multiple reciprocating plates 14 through nut pairs, and the multiple circular mounting seats 12 are pulled upward by multiple square rods 13. At this time, the multiple first gears 27 are respectively meshed with the multiple racks 26, and the multiple rotating rods 25 drive the multiple second bevel gears 24 to rotate. The second bevel gear 24 is meshed with the first bevel gear 23 to realize the rotation of the annular cleaning brush 22 inside the circular mounting seat 12. When the circular mounting seat 12 moves on the outside of the filter cartridge 6, the annular cleaning brush 22 can clean the surface of the filter cartridge 6 to prevent a small amount of smoke and dust from adhering to the filter cartridge 6, thereby improving the practicability of the device.

[0031] See also Figure 1 and Figure 2 The cleaning assembly includes a first reciprocating screw rod 11, which is arranged on one side of the second filter screen 9. The outer side of the first reciprocating screw rod 11 is connected to a cleaning plate 10 through a nut pair. The cleaning plate 10 contacts the second filter screen 9. A limiting rod is provided on the outer side of the first reciprocating screw rod 11. The limiting rod is fixedly connected to the top end of the box body 1. The cleaning plate 10 is slidably connected to the outer side of the limiting rod. The top end of the first reciprocating screw rod 11 passes through the top end of the box body 1 and is rotatably connected to the box body 1. The outer side of the first reciprocating screw rod 11 is fixedly connected to a first sprocket.

[0032] Specifically, the smoke enters the box body 1 through the smoke inlet pipe, and the large particles of dust in the smoke are filtered in advance by the second filter screen 9, and then the smoke is filtered by multiple filter cartridges 6.

[0033] In order to prevent large particles of dust from adhering to the second filter screen 9 during filtering operation, multiple second reciprocating screws 15 are rotating, one of the second reciprocating screws 15 drives the second sprocket to rotate, the second sprocket is connected to the first sprocket through a chain drive, the first reciprocating screw 11 rotates, and the first reciprocating screw 11 is connected to the cleaning plate 10 through a nut pair. Under the action of the limit rod, the cleaning plate 10 can clean the surface of the second filter screen 9 to prevent large particles of dust from clogging the second filter screen 9.

[0034] See also Figure 1 , Figure 2 and Figure 5The water spray assembly includes a square water pipe 7, which is arranged on the top of the fixed plate 5. A plurality of atomizing water spray heads are installed at the bottom of the square water pipe 7. The plurality of atomizing water spray heads extend to the interior of a plurality of filter cartridges 6 respectively. A connecting pipe 8 is fixedly connected to the outside of the square water pipe 7. The connecting pipe 8 passes through the inside of the box body 1 and is fixedly connected to the box body 1. A water pump is fixedly connected to the outside of the water tank 2. The connecting pipe 8 is installed at the output end of the water pump. The output end of the water pump is fixedly connected to the water tank 2. A first filter screen 4 is fixedly connected to the inside of the water tank 2. A discharge port is opened on the front side of the water tank 2. A convex sealing plate 3 is provided on the front side of the water tank 2. The convex sealing plate 3 is arranged inside the discharge port. The convex sealing plate 3 is fixed to the water tank 2 by bolts.

[0035] Specifically, after the large particles of dust on the second filter screen 9 are cleaned by the cleaning plate 10, they fall onto the first filter screen 4 inside the water tank 2, and the dust cleaned by the multiple filter cartridges 6 by the multiple annular cleaning brushes 22 will also fall onto the first filter screen 4.

[0036] When the water pump is started, the water at the bottom end of the water tank 2 can be pumped out and discharged into the square water pipe 7 through the connecting pipe 8, and finally discharged from multiple atomizing water nozzles. The pre-filtered flue gas can be filtered again through multiple filter cartridges 6. When the flue gas filtered through multiple filter cartridges 6 is discharged into the upper end of the fixed plate 5, the atomizing water nozzle can spray water inside the filter cartridge 6, and the fine impurities in the flue gas can be dusted again, which can improve the effect of the flue gas purification treatment.

[0037] The fine impurities removed by the water will flow into the water tank 2 along with the water, and the dust and water can be separated by the first filter 4, so that the water can be recycled.

[0038] At the same time, personnel can regularly dismantle the bolts, remove the convex sealing plate 3, and clean the impurities on the first filter screen 4.

[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A flue gas dust reduction device for furnace desulfurization and denitrification equipment, comprising a housing (1) and a water tank (2), characterized in that: The water storage tank (2) is fixedly connected to the bottom of the box body (1); a second filter screen (9) is fixedly connected inside the box body (1); a cleaning assembly is provided on one side of the second filter screen (9); a plurality of filter cartridges (6) are provided on the other side of the second filter screen (9); a water spray assembly is provided between the plurality of filter cartridges (6); a circular mounting seat (12) is provided at the bottom end of each of the plurality of filter cartridges (6); an annular cleaning brush (22) is rotatably connected inside the circular mounting seat (12); a first bevel gear (23) is fixedly connected to the outside of the annular cleaning brush (22); a second bevel gear (24) is meshingly connected to the outside of the first bevel gear (23) The outer side of the second bevel gear (24) is fixedly connected with a rotating rod (25), one end of the rotating rod (25) is fixedly connected with a first gear (27), the outer side of the first gear (27) is meshingly connected with a rack (26), the tops of the plurality of circular mounting seats (12) are fixedly connected with square rods (13), the tops of the plurality of square rods (13) are fixedly connected with reciprocating plates (14), the bottom ends of the plurality of reciprocating plates (14) are provided with second reciprocating screw rods (15), the plurality of reciprocating plates (14) are connected to the outer sides of the plurality of second reciprocating screw rods (15) through nut pairs, and a driving assembly is provided between the plurality of second reciprocating screw rods (15).

2. The flue gas dust reduction device for furnace desulfurization and denitrification equipment according to claim 1 is characterized in that: A smoke inlet pipe is installed on one side of the box body (1), a drain pipe is installed on one side of the water tank (2), and a valve is installed on the outside of the drain pipe.

3. The flue gas dust reduction device for furnace desulfurization and denitrification equipment according to claim 1 is characterized in that: The cleaning assembly comprises a first reciprocating screw (11), the first reciprocating screw (11) being arranged on one side of the second filter screen (9), the outer side of the first reciprocating screw (11) being connected to a cleaning plate (10) via a nut pair, the cleaning plate (10) being in contact with the second filter screen (9), a limiting rod being arranged on the outer side of the first reciprocating screw (11), the limiting rod being fixedly connected to the top end of the interior of the box body (1), the cleaning plate (10) being slidably connected to the outer side of the limiting rod, the top end of the first reciprocating screw (11) passing through the top end of the interior of the box body (1) and being rotatably connected to the box body (1), and a first sprocket being fixedly connected to the outer side of the first reciprocating screw (11).

4. The flue gas dust reduction device for furnace desulfurization and denitrification equipment according to claim 1 is characterized in that: A fixing plate (5) is provided on the other side of the second filter screen (9), and the fixing plate (5) is fixedly connected to the second filter screen (9) and the housing (1), and the top ends of the plurality of filter cartridges (6) pass through the fixing plate (5) and are fixedly connected to the fixing plate (5).

5. The flue gas dust reduction device for furnace desulfurization and denitrification equipment according to claim 1 is characterized in that: The water spray assembly comprises a square water pipe (7), the square water pipe (7) is arranged on the top of the fixing plate (5), a plurality of atomizing water spray heads are installed at the bottom of the square water pipe (7), and the plurality of atomizing water spray heads extend to the inside of a plurality of filter cartridges (6) respectively, a connecting pipe (8) is fixedly connected to the outside of the square water pipe (7), the connecting pipe (8) passes through the inside of the box body (1) and is fixedly connected to the box body (1), a water pump is fixedly connected to the outside of the water storage tank (2), the connecting pipe (8) is installed at the output end of the water pump, the output end of the water pump is fixedly connected to the water storage tank (2), a first filter screen (4) is fixedly connected to the inside of the water storage tank (2), a discharge port is opened at the front side of the water storage tank (2), a convex sealing plate (3) is provided at the front side of the water storage tank (2), the convex sealing plate (3) is arranged inside the discharge port, and the convex sealing plate (3) and the water storage tank (2) are fixed by bolts.

6. The flue gas dust reduction device for furnace desulfurization and denitrification equipment according to claim 1 is characterized in that: The outer side of the rotating rod (25) is rotatably connected to a fixed block, the fixed block is fixedly connected to the bottom of the circular mounting seat (12), the rack (26) is fixedly connected to the bottom of the fixed plate (5), the top ends of the plurality of square rods (13) all pass through the fixed plate (5) and are slidably connected to the fixed plate (5), the top ends of the plurality of square rods (13) all pass through the inner top end of the box body (1) and are slidably connected to the box body (1), the plurality of second reciprocating screw rods (15) are rotatably connected to the top of the box body (1), the outer sides of the plurality of second reciprocating screw rods (15) are rotatably connected to an L-shaped plate, the plurality of L-shaped plates are fixedly connected to the box body (1), the outer side of one of the second reciprocating screw rods (15) is fixedly connected to a second sprocket, and the second sprocket is connected to the first sprocket via a chain transmission.

7. The flue gas dust reduction device for furnace desulfurization and denitrification equipment according to claim 1 is characterized in that: The driving assembly comprises a smoke exhaust box (17), the smoke exhaust box (17) is fixedly connected to the top of the box body (1), the outside of the smoke exhaust box (17) is fixedly connected to a smoke exhaust pipe (21), a rotating rod (19) is provided inside the smoke exhaust box (17), the bottom end of the rotating rod (19) is fixedly connected to an exhaust fan (18), the top end of the rotating rod (19) passes through the top of the inside of the smoke exhaust box (17) and is rotatably connected to the smoke exhaust box (17), the outside of the rotating rod (19) is fixedly connected to a large gear (20), the outside of the large gear (20) is meshedly connected to a plurality of small gears (16), the plurality of small gears (16) are respectively fixedly connected to the outside of a plurality of second reciprocating screw rods (15), and a driving motor is provided on the top of the box body (1), and the output end of the driving motor is fixedly connected to the rotating rod (19).

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