Ultralow-emission coal-fired flue gas synergistic demercuration device

Abstract

The invention discloses an ultralow-emission coal-fired flue gas synergistic demercuration device, and belongs to the technical field of demercuration, the ultralow-emission coal-fired flue gas synergistic demercuration device comprises a reaction cylinder and a motor, and the upper surface of the reaction cylinder is rotatably communicated with a communicating pipe; according to the ultralow-emission coal-fired flue gas synergistic demercuration device, a toothed plate, a gear and a hollow plate are arranged, flue gas is collected and stored through a reaction cylinder, then a bromine salt solution in a storage box is pumped through a water pump and conveyed into the hollow plate under the action of a conveying pipe and a communicating pipe, a motor drives a reciprocating lead screw to rotate, and the mercury removal effect is achieved. Through the meshing effect of a toothed plate and a gear, a communicating pipe rotates anticlockwise and clockwise in a reciprocating mode, a hollow plate rotates along with rotation of the communicating pipe, at the moment, a bromine salt solution is discharged through a round hole in the lower portion of the hollow plate, and due to the reciprocating clockwise and anticlockwise rotation of the hollow plate, the spraying range of the bromine salt solution is enlarged; further, the mercury can be uniformly fused with smoke, more divalent mercury is generated, and the mercury removal effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mercury removal, and in particular relates to an ultra-low emission coal-fired flue gas synergistic mercury removal device. Background Art

[0002] Coal-fired power plants are the main sources of air pollutants such as smoke, sulfur dioxide (SO2) and nitrogen oxides (NOX). In recent years, my country has formulated and issued a series of laws, regulations, standards, plans, technical policies, etc., which have put forward increasingly higher requirements for the emission control of air pollutants from coal-fired power plants. Certain results have been achieved in the control of air pollutants such as smoke, SO2 and NOX. Electrostatic precipitator technology and limestone-gypsum wet flue gas desulfurization technology have been widely used. With the release of the new "Air Pollutant Emission Standards for Thermal Power Plants" (GB13223-2011) in 2011, high-efficiency dust removal technology and selective catalytic reduction (SCR) denitrification technology will also be widely used. According to statistics, by the end of 2012, the capacity of flue gas desulfurization units in operation nationwide was 680 million kilowatts, accounting for 89% of the capacity of coal-fired power units, of which more than 90% of the flue gas desulfurization devices used limestone-gypsum wet desulfurization technology; the capacity of flue gas denitrification units in operation nationwide was about 230 million kilowatts, accounting for 28% of the capacity of thermal power units, of which more than 95% of the denitrification devices used SCR denitrification technology. Mercury emissions have attracted great attention from governments and environmental protection organizations in various countries. Mercury is a heavy metal pollutant with extremely strong biological toxicity in the environment. It is difficult to be discharged after entering the organism, which seriously threatens human health. The United Nations Environment Program (UNEP) pointed out that coal-fired power plants are the largest source of man-made mercury pollution, accounting for about 67% of global mercury emissions. Therefore, it is urgent to control mercury emissions from coal-fired power plants.

[0003] Some coal-fired power plants add bromine salt solution or directly spray the solution. Bromine ions in the flue gas oxidize elemental mercury to form Hg2+. The denitrification device SCR can enhance the oxidation of elemental mercury and bromine to form more Hg2+. Hg2+ dissolves in water and is then captured, thereby achieving the purpose of mercury removal. When the bromine salt solution is sprayed again, the spraying effect is poor, and the bromine salt solution cannot be integrated with all the smoke, which results in less Hg2+ being formed, reducing the demercuration effect. Summary of the invention

[0004] The object of the present invention is to provide an ultra-low emission coal-fired flue gas collaborative mercury removal device to solve the problem raised in the above background technology that some coal-fired power plants can add bromine salt solution or directly spray the solution, and bromine ions in the flue gas oxidize elemental mercury to form Hg2+, and the denitrification device SCR can enhance the oxidation of elemental mercury and bromine to form more Hg2+, and Hg2+ dissolves in water and is then captured, thereby achieving the purpose of mercury removal. When the bromine salt solution is sprayed again, the spraying effect is poor, and the bromine salt solution cannot be integrated with all the smoke, thereby resulting in less Hg2+ being formed, thereby reducing the mercury removal effect.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: comprising a reaction cylinder and a motor, a connecting pipe is rotatably connected and installed on the upper surface of the reaction cylinder, an annular gear is installed on the connecting pipe, two fixed plates are installed on the upper surface of the reaction cylinder, the same reciprocating screw is rotatably installed on the two fixed plates, the motor is installed on the upper surface of the reaction cylinder, and the output shaft of the motor is fixedly connected to the reciprocating screw, a tooth plate meshing with the gear is threadedly installed on the reciprocating screw, a limiting assembly is arranged on the tooth plate, two L-shaped plates arranged oppositely are installed on the inner top surface of the reaction cylinder, a hollow plate is arranged between the two L-shaped plates, a plurality of circular holes are opened on the lower surface of the hollow plate, and the bottom end of the connecting pipe The reaction cylinder is connected with a hollow plate, a connecting pipe 1 is installed on the left side thereof, a reserve tank is installed on the rear side thereof, an external pipe is installed on the left side thereof, a valve 1 is installed on the external pipe, a water pump is installed on the upper surface of the reserve tank, a water suction port of the water pump is connected with the reserve tank, a discharge port of the water pump is connected with a delivery pipe, and the delivery pipe is connected with the connecting pipe, a supporting plate 1 is installed on the left side of the bottom bracket of the reaction cylinder, a water tank is installed on the upper surface of the supporting plate 1, a water inlet pipe is installed on the upper surface of the water tank, a valve 2 is installed on the water inlet pipe, a transmission pipe is installed between the water tank and the reaction cylinder, and a discharge pipe is installed on the right side thereof.

[0006] By adopting the above scheme, a toothed plate, a gear and a hollow plate are arranged, and the flue gas is collected and stored by a reaction cylinder. Then, the bromine salt solution in the storage tank is extracted by a water pump, and is transmitted to the hollow plate by the function of a delivery pipe and a connecting pipe. The motor drives the reciprocating screw to rotate, and the connecting pipe is reciprocated counterclockwise and clockwise by the meshing function of the toothed plate and the gear. The hollow plate rotates with the rotation of the connecting pipe. At this time, the bromine salt solution is discharged through the circular hole below the hollow plate. Due to the reciprocating clockwise and counterclockwise rotation of the hollow plate, the spraying range of the bromine salt solution is expanded, and it can be evenly merged with the smoke, and more divalent mercury is produced, thereby improving the demercuration effect.

[0007] In the above solution, it should be noted that the water pump and the motor are both electrically connected to an external power supply.

[0008] As a preferred embodiment, the limiting assembly includes two telescopic rods 1, and the two telescopic rods 1 are respectively installed on opposite sides of two fixed plates, and the telescopic shafts of the telescopic rods 1 are fixedly connected to the toothed plate.

[0009] By adopting the above scheme, a telescopic rod 1 is set up, and the telescopic rod 1 is respectively located on two fixed plates to limit the tooth plate, so that the tooth plate can only move left and right under the action of the telescopic rod 1, thereby preventing the tooth plate from rotating with the rotation of the reciprocating screw, thereby improving the stability of the tooth plate when moving.

[0010] As a preferred embodiment, two slide grooves are opened on the upper surface of the water tank, and sliders are slidably installed in the slide grooves. The upper surfaces of the two sliders are installed with the same U-shaped baffle plate, and the water inlet pipe is located in the baffle plate.

[0011] By adopting the above scheme, a baffle and a slider are set, and the U-shaped baffle is used to block the top of the water inlet pipe to prevent dust or dirt from entering the water inlet pipe. With the sliding action of the slider in the slide groove, the staff can move the baffle to one side to leak out the water inlet pipe at any time, which is convenient for operation.

[0012] As a preferred embodiment, a protective frame with an opening at the bottom is installed on the upper surface of the reaction cylinder, the motor, the gear plate, the fixing plate and the connecting pipe are all located in the protective frame, and the delivery pipe passes through the connecting protective frame.

[0013] By adopting the above scheme, a protective frame is set up and the opening at the bottom of the protective frame is utilized to wrap the motor, gear plate, fixed plate, connecting tube and reciprocating screw, thereby protecting the motor, gear plate, fixed plate, connecting tube and reciprocating screw, avoiding damage to the motor, gear plate, fixed plate, connecting tube and reciprocating screw due to long-term exposure to the outside, and improving the service life of the motor, gear plate, fixed plate, connecting tube and reciprocating screw.

[0014] As a preferred embodiment, two card frames are provided on the front and rear sides of the discharge pipe, two activated carbon filter plates are provided in the two card frames, the left side of the discharge pipe is fitted with the activated carbon filter plate, and a fixing component is provided on the card frame.

[0015] By adopting the above scheme, an activated carbon filter is set up and the two clamp frames are used to fix the activated carbon filter at the end of the discharge pipe, thereby enhancing the filtration of the gas discharged from the discharge pipe and improving the cleanliness of the discharged gas.

[0016] As a preferred embodiment, the fixing assembly includes four wedge blocks, two groups of wedge grooves are opened on the right side of the water tank, and the number of wedge grooves in each group is two, the four wedge blocks are respectively slidably installed in the four wedge grooves, a support rod is installed on the right side of the wedge block, one end of the support rod is fixedly connected to the card frame, a telescopic rod 2 is installed in the wedge groove, the telescopic shaft of the telescopic rod 2 is fixedly connected to the wedge block, and the outer side of the telescopic rod 2 is sleeved with a spring whose two ends are respectively fixedly connected to the wedge block and the wedge groove.

[0017] The above scheme is adopted, by setting a wedge block and a spring, utilizing the sliding effect of the wedge block in the wedge groove, and through the fixed connection of the support rod, the two card frames are movably fixed to the side of the water tank, and with the elastic effect of the spring, there is always a pushing force facing the wedge block, so that when the activated carbon filter plate is replaced, the card frame can be quickly reset after moving, and the effect of the telescopic rod 2 can be utilized to fill the inside of the spring, thereby increasing the fullness of the inside of the spring, so that the spring can work stably.

[0018] As a preferred embodiment, a treatment box is arranged below the support plate one, a connecting pipe three is installed on the lower surface of the water tank, the connecting pipe three passes through the support plate one and is connected with the water tank, a valve three is installed on the connecting pipe three, a discharge pipe is installed at the bottom end of the reaction cylinder, a valve two is installed on the discharge pipe, a connecting pipe two is installed at the bottom end of the discharge pipe, one end of the connecting pipe two is connected with the treatment box, support plates two are installed on the left and right sides of the inner wall of the treatment box, and the upper surfaces of the two support plates two are provided with the same filter adsorption mesh plate.

[0019] By adopting the above scheme, a filter adsorption mesh plate is set up, and the connecting tube three and the connecting rod two are used to connect the reaction tube and the water tank to the treatment box respectively. With the help of the supporting plate two, the filter adsorption mesh plate is movably supported in the treatment box, which is convenient for the later replacement or cleaning of the filter adsorption mesh plate. Combined with the function of the filter adsorption mesh plate, the water in the water tank and the liquid in the reaction tube are filtered and cleaned to avoid polluting the environment during discharge.

[0020] As a preferred embodiment, a channel is opened on the front side of the processing box, and two connecting rods are arranged in the channel. One end of the connecting rod is fixedly connected to the filter adsorption mesh plate, and the other end of the connecting rod is installed with a sealing plate. The sealing plate is arranged in coordination with the channel, and bolts are threadedly installed at the four corners of the sealing plate. The tail end of the bolt passes through the sealing plate and is threadedly connected to the processing box.

[0021] By adopting the above scheme, a sealing plate and bolts are set, and the sealing plate is detachably fixed by the action of the bolts. The channel is blocked with the action of the sealing plate to prevent the liquid in the treatment box from overflowing to the outside. The connecting rod and the filter adsorption mesh plate are fixedly connected, so that when the bolts are loosened, the filter adsorption mesh plate can be moved out of the treatment box by moving the sealing plate, and the filter adsorption mesh plate can be replaced or cleaned.

[0022] As a preferred embodiment, a drain pipe is installed on the rear side of the processing box, a threaded groove is provided on the outer surface of the drain pipe, and a sealing cover is provided on the rear side of the processing box, and the sealing cover is threadedly connected to the drain pipe through the threaded groove.

[0023] By adopting the above scheme, a sealing cover and a drain pipe are provided, and the function of the drain pipe is utilized, the wastewater in the treatment box can be conveniently discharged to the outside, thereby avoiding excessive accumulation of liquid in the treatment box affecting the operation of the treatment box. In conjunction with the function of the sealing cover, the sealing cover can be turned at any time to seal or open the end of the drain pipe, thereby facilitating operation.

[0024] As a preferred embodiment, an auxiliary plate is installed on the upper surface of the reaction cylinder, a through hole is opened on the auxiliary plate, and the delivery pipe extends through the through hole.

[0025] By adopting the above scheme, an auxiliary plate is provided, and the auxiliary plate is located above the reaction tube, and cooperates with the through hole to support a part of the conveying tube, thereby improving the stability of the conveying tube during transportation and improving the transportation efficiency.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The ultra-low emission coal-fired flue gas synergistic mercury removal device is provided with a tooth plate, a gear and a hollow plate, and uses a reaction cylinder to collect and store flue gas. Then, a bromine salt solution in a storage tank is extracted by a water pump, and is transmitted to the hollow plate by a delivery pipe and a connecting pipe. A motor drives a reciprocating screw to rotate, and the connecting pipe is reciprocated counterclockwise and clockwise by the meshing effect of the tooth plate and the gear. The hollow plate rotates with the rotation of the connecting pipe. At this time, the bromine salt solution is discharged through the circular hole below the hollow plate. Due to the reciprocating clockwise and counterclockwise rotation of the hollow plate, the spraying range of the bromine salt solution is expanded, and it can be evenly integrated with the smoke, and more divalent mercury is generated, thereby improving the mercury removal effect.

[0028] The ultra-low emission coal-fired flue gas synergistic mercury removal device is provided with a protection frame, and utilizes the opening at the bottom of the protection frame to wrap the motor, gear plate, fixed plate, connecting pipe and reciprocating screw, thereby protecting the motor, gear plate, fixed plate, connecting pipe and reciprocating screw, avoiding damage to the motor, gear plate, fixed plate, connecting pipe and reciprocating screw that are exposed to the outside for a long time, thereby increasing the service life of the motor, gear plate, fixed plate, connecting pipe and reciprocating screw;

[0029] The ultra-low emission coal-fired flue gas synergistic mercury removal device is provided with a wedge block and a spring, and utilizes the sliding action of the wedge block in the wedge groove, and the two clamping frames are movably fixed on the side of the water tank through the fixed connection of the support rod. With the elastic action of the spring, there is always a pushing force facing the wedge block, so that when the activated carbon filter plate is replaced, the clamping frame after the movement is quickly reset, and the function of the telescopic rod 2 is utilized to fill the inside of the spring, thereby improving the fullness of the inside of the spring, so that the spring can work stably;

[0030] The ultra-low emission coal-fired flue gas collaborative mercury removal device is provided with a filter adsorption mesh plate, and utilizes the functions of connecting pipe three and connecting rod two to respectively connect the reaction tube and the water tank to the treatment box, and cooperates with the function of support plate two to movably support the filter adsorption mesh plate in the treatment box, so as to facilitate the replacement or cleaning of the filter adsorption mesh plate at a later stage. Combined with the function of the filter adsorption mesh plate, the moisture in the water tank and the liquid in the reaction tube are filtered and cleaned to avoid environmental pollution during discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0033] Figure 3 It is a schematic diagram of the enlarged structure of point A of the present invention;

[0034] Figure 4 It is a schematic diagram of the side structure of the water tank of the present invention;

[0035] Figure 5 It is a schematic diagram of the cross-sectional structure of the processing box of the present invention;

[0036] Figure 6 This is a schematic diagram of the front view structure of the hollow slab of the present invention;

[0037] Figure 7 It is a rear view structural schematic diagram of the present invention;

[0038] Figure 8 It is a schematic diagram of the enlarged structure of point B of the present invention.

[0039] In the figure: 1, reaction cylinder; 2, transmission pipe; 3, water tank; 4, support plate 1; 5, connecting pipe 1; 6, discharge pipe; 7, fixed plate; 8, tooth plate; 9, hollow plate; 10, reciprocating screw; 11, motor; 12, gear; 13, transmission pipe; 14, telescopic rod 1; 15, connecting pipe; 16, shielding plate; 17, slider; 18, discharge pipe; 19, card frame; 20, activated carbon filter plate; 21, wedge block; 2 2. Telescopic rod 2; 23. Spring; 24. Support rod; 25. Water inlet pipe; 26. Treatment box; 27. Drain pipe; 28. Sealing cover; 29. ​​Connecting pipe 3; 30. Filter adsorption mesh plate; 31. Support plate 2; 32. Connecting rod; 33. Sealing plate; 34. Bolt; 35. Connecting pipe 2; 36. L-shaped plate; 37. Auxiliary plate; 38. Reserve box; 39. External pipe; 40. Water pump; 41. Protection frame. DETAILED DESCRIPTION

[0040] See also Figure 1-8The present invention provides an ultra-low emission coal-fired flue gas synergistic mercury removal device, comprising a reaction tube 1 and a motor 11, a connecting pipe 15 is rotatably connected and installed on the upper surface of the reaction tube 1, and a ring-shaped gear 12 is installed on the connecting pipe 15, and two fixed plates 7 are installed on the upper surface of the reaction tube 1, and the same reciprocating screw 10 is rotatably installed on the two fixed plates 7, and the motor 11 is installed on the upper surface of the reaction tube 1, and the output shaft of the motor 11 is fixedly connected to the reciprocating screw 10, and the reciprocating screw 10 is threadedly installed with a tooth plate 8 meshing with the gear 12, and a limit position is set on the tooth plate 8 The inner top surface of the reaction cylinder 1 is provided with two L-shaped plates 36 arranged opposite to each other, a hollow plate 9 is provided between the two L-shaped plates 36, a plurality of circular holes are provided on the lower surface of the hollow plate 9, the bottom end of the connecting pipe 15 is connected with the hollow plate 9, the left side of the reaction cylinder 1 is connected with a connecting pipe 5, a reserve box 38 is provided on the rear side of the reaction cylinder 1, an external pipe 39 is provided on the left side of the reserve box 38, a valve 1 is provided on the external pipe 39, a water pump 40 is provided on the upper surface of the reserve box 38, a water pump 40 is connected with the reserve box 38, and a water pump 40 is connected with the water pump 40. 0 is connected with a delivery pipe 13, and the delivery pipe 13 is connected with a connecting pipe 15. A support plate 4 is installed on the left side of the bottom bracket of the reaction cylinder 1, and a water tank 3 is installed on the upper surface of the support plate 4. The upper surface of the water tank 3 is connected with a water inlet pipe 25, and a valve 2 is installed on the water inlet pipe 25. A transmission pipe 2 is connected and installed between the water tank 3 and the reaction cylinder 1, and a discharge pipe 18 is connected and installed on the right side of the water tank 3. By setting a tooth plate 8, a gear 12 and a hollow plate 9, the reaction cylinder 1 is used to collect and store the flue gas, and then the water pump 40 extracts the flue gas in the reserve tank 38. The bromine salt solution is delivered to the hollow plate 9 by the delivery pipe 13 and the connecting pipe 15. The motor 11 drives the reciprocating screw 10 to rotate. The connecting pipe 15 reciprocates counterclockwise and clockwise by the meshing action of the toothed plate 8 and the gear 12. The hollow plate 9 rotates with the rotation of the connecting pipe 15. At this time, the bromine salt solution is discharged through the circular hole below the hollow plate 9. Due to the reciprocating clockwise and counterclockwise rotation of the hollow plate 9, the spraying range of the bromine salt solution is expanded, and it can be evenly merged with the smoke to produce more divalent mercury, thereby improving the demercuration effect.

[0041] The limiting assembly includes two telescopic rods 14, and the two telescopic rods 14 are respectively installed on the opposite side of the two fixed plates 7. The telescopic shaft of the telescopic rod 14 is fixedly connected to the tooth plate 8. By setting the telescopic rod 14 and utilizing the effect of the telescopic rod 14 being located on the two fixed plates 7, the tooth plate 8 is limited so that the tooth plate 8 can only move left and right under the action of the telescopic rod 14, thereby preventing the tooth plate 8 from rotating with the rotation of the reciprocating screw 10, thereby improving the stability of the tooth plate 8 when moving.

[0042] Two slide grooves are provided on the upper surface of the water tank 3, and a slider 17 is slidably installed in the slide groove. The upper surfaces of the two sliders 17 are installed with the same U-shaped baffle plate 16, and the water inlet pipe 25 is located in the baffle plate 16. By setting the baffle plate 16 and the slider 17, the baffle plate 16 is U-shaped to block the top of the water inlet pipe 25 to prevent dust or dirt from entering the water inlet pipe 25. With the sliding effect of the slider 17 in the slide groove, the staff can move the baffle plate 16 to one side at any time to leak the water inlet pipe 25, which is convenient for operation.

[0043] A protective frame 41 with an opening at the bottom is installed on the upper surface of the reaction tube 1, and the motor 11, the tooth plate 8, the fixed plate 7, and the connecting pipe 15 are all located in the protective frame 41, and the conveying pipe 13 passes through the connecting protective frame 41. By setting the protective frame 41 and utilizing the effect of the opening at the bottom end of the protective frame 41, the motor 11, the tooth plate 8, the fixed plate 7, the connecting pipe 15 and the reciprocating screw 10 are wrapped, and then the motor 11, the tooth plate 8, the fixed plate 7, the connecting pipe 15 and the reciprocating screw 10 are protected, so as to avoid damage to the motor 11, the tooth plate 8, the fixed plate 7, the connecting pipe 15 and the reciprocating screw 10 which are exposed to the outside for a long time, thereby improving the service life of the motor 11, the tooth plate 8, the fixed plate 7, the connecting pipe 15 and the reciprocating screw 10.

[0044] Two card frames 19 are provided on both the front and rear sides of the discharge pipe 18, and two activated carbon filter plates 20 are provided in the two card frames 19. The left side of the discharge pipe 18 is in contact with the activated carbon filter plate 20, and a fixing component is provided on the card frame 19. By setting up the activated carbon filter and utilizing the function of the two card frames 19, the activated carbon filter is fixed to the end of the discharge pipe 18, thereby enhancing the filtration of the gas discharged from the discharge pipe 18 and improving the cleanliness of the discharged gas.

[0045] The fixing assembly includes four wedge blocks 21. Two groups of wedge grooves are provided on the right side of the water tank 3, and each group of wedge grooves has two groups. The four wedge blocks 21 are slidably installed in the four wedge grooves respectively. A support rod 24 is installed on the right side of the wedge block 21. One end of the support rod 24 is fixedly connected to the card frame 19. A telescopic rod 22 is installed in the wedge groove. The telescopic shaft of the telescopic rod 22 is fixedly connected to the wedge block 21. The outer side of the telescopic rod 22 is sleeved with a spring 23 with two ends respectively fixedly connected to the wedge block 21 and the wedge groove. By setting the wedge The wedge-shaped block 21 and the spring 23 utilize the sliding effect of the wedge-shaped block 21 in the wedge-shaped groove, and the fixed connection of the support rod 24 to movably fix the two card frames 19 on the side of the water tank 3. With the elastic effect of the spring 23, there is always a pushing force facing the wedge-shaped block 21, so that when the activated carbon filter plate 20 is replaced, the card frame 19 after moving is quickly reset, and the telescopic rod 22 is utilized to fill the inside of the spring 23, thereby improving the fullness of the inside of the spring 23, so that the spring 23 can work stably.

[0046] A treatment box 26 is provided below the support plate 1 4, a connection pipe 3 29 is connected to the lower surface of the water tank 3, the connection pipe 3 29 penetrates the support plate 1 4 and is connected to the water tank 3, a valve 3 is installed on the connection pipe 3 29, a discharge pipe 6 is connected to the bottom end of the reaction cylinder 1, a valve 2 is installed on the discharge pipe 6, a connection pipe 2 35 is connected to the bottom end of the discharge pipe 18, one end of the connection pipe 2 35 is connected to the treatment box 26, and support plates 2 31 are installed on the left and right sides of the inner wall of the treatment box 26, and the upper surfaces of the two support plates 2 31 are connected to the upper surfaces of the two support plates 2 The same filter adsorption mesh plate 30 is arranged on the surface. By setting the filter adsorption mesh plate 30, the reaction tube 1 and the water tank 3 are connected to the treatment box 26 respectively by utilizing the functions of the connecting tube three 29 and the connecting rod 322. With the function of the supporting plate two 31, the filter adsorption mesh plate 30 is movably supported in the treatment box 26, so that it is convenient to replace or clean the filter adsorption mesh plate 30 at a later time. Combined with the function of the filter adsorption mesh plate 30, the moisture in the water tank 3 and the liquid in the reaction tube 1 are filtered and cleaned to avoid polluting the environment when discharged.

[0047] A channel is provided on the front side of the processing box 26, and two connecting rods 32 are arranged in the channel. One end of the connecting rod 32 is fixedly connected to the filter adsorption mesh plate 30, and a sealing plate 33 is installed on the other end of the connecting rod 32. The sealing plate 33 is arranged in coordination with the channel, and bolts 34 are threadedly installed at the four corners of the sealing plate 33. The tail end of the bolt 34 passes through the sealing plate 33 and is threadedly connected to the processing box 26. By setting the sealing plate 33 and the bolt 34, the sealing plate 33 is detachably fixed by the action of the bolt 34, and the channel is blocked by the action of the sealing plate 33 to prevent the liquid in the processing box 26 from overflowing to the outside. The connecting rod 32 is fixedly connected to the filter adsorption mesh plate 30, so that when the bolt 34 is loosened, the filter adsorption mesh plate 30 can be moved out of the processing box 26 by moving the blocking plate, and the filter adsorption mesh plate 30 can be replaced or cleaned.

[0048] The rear side of the treatment box 26 is connected to a drain pipe 27, and a threaded groove is provided on the outer surface of the drain pipe 27. A sealing cover 28 is provided on the rear side of the treatment box 26. The sealing cover 28 is threadedly connected to the drain pipe 27 through the threaded groove. By setting the sealing cover 28 and the drain pipe 27 and utilizing the function of the drain pipe 27, it is convenient to discharge the wastewater in the treatment box 26 to the outside, thereby avoiding excessive accumulation of liquid in the treatment box 26 and affecting the operation of the treatment box 26. With the function of the sealing cover 28, the sealing cover 28 can be rotated at any time to seal or open the end of the drain pipe 27, thereby facilitating operation.

[0049] An auxiliary plate 37 is installed on the upper surface of the reaction tube 1. A through hole is opened on the auxiliary plate 37. The delivery tube 13 extends through the through hole. By setting the auxiliary plate 37 and utilizing the auxiliary plate 37 to be located above the reaction tube 1, a part of the delivery tube 13 is supported in cooperation with the through hole, thereby improving the stability of the delivery tube 13 during delivery and improving the delivery efficiency.

[0050] When in use, the connecting pipe 5 is connected to the smoke outlet. When smoke enters the reaction tube 1, the motor 11 and the water pump 40 are started. The motor 11 drives the reciprocating screw 10 to rotate. When the reciprocating screw 10 rotates, the gear plate 8 is driven to move. When the gear plate 8 moves, the telescopic rod 14 is stretched. With the meshing effect of the gear plate 8 and the gear 12, the gear 12 drives the connecting pipe 15 to rotate. The water pump 40 extracts the bromine salt solution in the reserve tank 38, and then passes through the conveying pipe 13 into the connecting pipe 15, and enters the hollow plate 9 through the connecting pipe 15 to spray the reaction tube 1, so that the bromine salt solution can fully fuse with the smoke to produce more divalent mercury. When the fusion is completed, the motor 11 and the water pump 40 are turned off. At this time, the excess bromine salt solution accumulates at the bottom of the reaction tube 1, and the divalent mercury produced enters the water tank 3 through the conveying pipe 2. Since divalent mercury is soluble in water, Then it is adsorbed by water, at which time the mercury in the smoke is removed, achieving the purpose of mercury removal, and the remaining gas enters the discharge pipe 18, passes through the activated carbon filter plate 20, and is discharged to the outside; when it is necessary to process the moisture in the water tank 3 and the excess liquid in the reaction tube 1, open valve three and valve two, the moisture in the water tank 3 enters the treatment box 26 through the connecting pipe three 29, and the excess liquid in the reaction tube 1 enters the treatment box 26 through the connecting pipe two 35. The liquid entering the treatment box 26 passes through the activated carbon filter plate 20 and accumulates at the bottom of the treatment box 26, and then the sealing cover 28 is rotated, and the treated liquid is discharged from the treatment box 26 through the drain pipe 27; when it is necessary to replenish the water in the water tank 3, move the baffle plate 16, and when the baffle plate 16 moves, the slider 17 is driven to slide in the slide groove. At this time, the water inlet pipe 25 leaks, and an external water source can be connected for replenishment.

Claims

1. An ultra-low emission coal-fired flue gas synergistic mercury removal device, Features: The invention comprises a reaction cylinder (1) and a motor (11), wherein a connecting pipe (15) is rotatably connected and installed on the upper surface of the reaction cylinder (1), and a ring-shaped gear (12) is installed on the connecting pipe (15), and two fixed plates (7) are installed on the upper surface of the reaction cylinder (1), and a same reciprocating screw (10) is rotatably installed on the two fixed plates (7), and the motor (11) is installed on the upper surface of the reaction cylinder (1), and the output shaft of the motor (11) is fixedly connected to the reciprocating screw (10), and a tooth plate (8) meshing with the gear (12) is threadedly installed on the reciprocating screw (10), and a limit position assembly is arranged on the tooth plate (8), and two L-shaped plates (36) arranged opposite to each other are installed on the inner top surface of the reaction cylinder (1), and a hollow plate (9) is arranged between the two L-shaped plates (36), and a plurality of circular holes are opened on the lower surface of the hollow plate (9); The bottom end of the connecting pipe (15) is connected to the hollow plate (9); the left side of the reaction cylinder (1) is connected to a connecting pipe (5); the rear side of the reaction cylinder (1) is installed with a storage box (38); the left side of the storage box (38) is connected to an external pipe (39); a valve (39) is installed on the external pipe (39); a water pump (40) is installed on the upper surface of the storage box (38); the water inlet of the water pump (40) is connected to the storage box (38); the water outlet of the water pump (40) is connected to the storage box (38); A delivery pipe (13) is connected, and the delivery pipe (13) is connected to a connecting pipe (15). A support plate (4) is installed on the left side of the bottom end bracket of the reaction cylinder (1). A water tank (3) is installed on the upper surface of the support plate (4). A water inlet pipe (25) is installed on the upper surface of the water tank (3). A valve (2) is installed on the water inlet pipe (25). A delivery pipe (2) is installed between the water tank (3) and the reaction cylinder (1). A discharge pipe (18) is installed on the right side of the water tank (3).

2. The ultra-low emission coal-fired flue gas synergistic mercury removal device according to claim 1, Features: The limiting assembly comprises two telescopic rods (14), the two telescopic rods (14) being respectively mounted on opposite sides of two fixed plates (7), and the telescopic shafts of the telescopic rods (14) being fixedly connected to the toothed plate (8).

3. The ultra-low emission coal-fired flue gas synergistic mercury removal device according to claim 1, Features: The upper surface of the water tank (3) is provided with two slide grooves, in which a slider (17) is slidably installed, and the upper surfaces of the two sliders (17) are provided with a same U-shaped shielding plate (16), and the water inlet pipe (25) is located inside the shielding plate (16).

4. The ultra-low emission coal-fired flue gas synergistic mercury removal device according to claim 1, Features: A protective frame (41) with an opening at the bottom is installed on the upper surface of the reaction cylinder (1); the motor (11), the gear plate (8), the fixing plate (7) and the connecting pipe (15) are all located in the protective frame (41); and the delivery pipe (13) passes through the connecting protective frame (41).

5. The ultra-low emission coal-fired flue gas synergistic mercury removal device according to claim 1, Features: Two card frames (19) are arranged on both the front and rear sides of the discharge pipe (18), two activated carbon filter plates (20) are arranged in the two card frames (19), the left side surface of the discharge pipe (18) is in contact with the activated carbon filter plate (20), and a fixing component is arranged on the card frame (19).

6. The ultra-low emission coal-fired flue gas synergistic mercury removal device according to claim 5, Features: The fixing assembly comprises four wedge blocks (21), two groups of wedge grooves are provided on the right side surface of the water tank (3), and the number of wedge grooves in each group is two. The four wedge blocks (21) are respectively slidably mounted in the four wedge grooves, a support rod (24) is installed on the right side surface of the wedge block (21), one end of the support rod (24) is fixedly connected to the card frame (19), a telescopic rod 2 (22) is installed in the wedge groove, the telescopic shaft of the telescopic rod 2 (22) is fixedly connected to the wedge block (21), and a spring (23) is sleeved on the outer side of the telescopic rod 2 (22), the two ends of which are respectively fixedly connected to the wedge block (21) and the wedge groove.

7. The ultra-low emission coal-fired flue gas synergistic mercury removal device according to claim 1, Features: A treatment box (26) is arranged below the support plate 1 (4); a connection pipe 3 (29) is installed on the lower surface of the water tank (3); the connection pipe 3 (29) passes through the support plate 1 (4) and is connected to the water tank (3); a valve 3 is installed on the connection pipe 3 (29); a discharge pipe (6) is installed at the bottom end of the reaction cylinder (1); a valve 2 is installed on the discharge pipe (6); a connection pipe 2 (35) is installed at the bottom end of the discharge pipe (18); one end of the connection pipe 2 (35) is connected to the treatment box (26); support plates 2 (31) are installed on the left and right sides of the inner wall of the treatment box (26); and the upper surfaces of the two support plates 2 (31) are provided with the same filtering adsorption mesh plate (30).

8. The ultra-low emission coal-fired flue gas synergistic mercury removal device according to claim 7, Features: A channel is provided on the front side of the processing box (26), and two connecting rods (32) are arranged in the channel. One end of the connecting rod (32) is fixedly connected to the filter adsorption mesh plate (30), and the other end of the connecting rod (32) is installed with a sealing plate (33). The sealing plate (33) is arranged in coordination with the channel, and bolts (34) are threadedly installed at the four corners of the sealing plate (33). The tail end of the bolt (34) passes through the sealing plate (33) and is threadedly connected to the processing box (26).

9. The ultra-low emission coal-fired flue gas synergistic mercury removal device according to claim 7, Features: The rear side of the processing box (26) is connected to a drain pipe (27) installed thereon, a thread groove is provided on the outer surface of the drain pipe (27), and a sealing cover (28) is provided on the rear side of the processing box (26), and the sealing cover (28) is threadedly connected to the drain pipe (27) via the thread groove.

10. The ultra-low emission coal-fired flue gas synergistic mercury removal device according to claim 1, Features: An auxiliary plate (37) is installed on the upper surface of the reaction cylinder (1), and a through hole is opened on the auxiliary plate (37), and the delivery pipe (13) extends through the through hole.

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