A device for removing mercury from flue gas scrubbing wastewater

Abstract

This invention relates to the field of wastewater treatment, and more particularly to a mercury removal device for flue gas scrubbing wastewater. During the mercury removal process, a significant amount of large particulate impurities may deposit at the bottom of the container, interfering with the contact between the reactants and the catalyst, thus reducing the mercury removal efficiency. Conventional stirring processes easily create dead zones, resulting in incomplete local reactions and further affecting the overall mercury removal effect. The technical solution of this invention is: a mercury removal device for flue gas scrubbing wastewater, including a support frame, on which a cylinder is mounted. A feed pipe is connected to one side of the upper part of the cylinder, and a discharge valve is connected to one side of the lower part of the cylinder. A pump extracts wastewater and large particulate impurities from the cylinder. Through continuous extraction, filtration, and recirculation of the large particulate impurities settling at the bottom of the wastewater, the impurities are discharged back into the wastewater, reducing the accumulation of impurities at the bottom of the cylinder. This improves the contact efficiency between impurities and the oxidant, promotes the oxidation reaction, and enhances the mercury removal effect.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment, and more particularly to a device for removing mercury from flue gas scrubbing wastewater. Background Technology

[0002] Mercury removal technology plays an important role in industrial waste gas treatment, especially in the treatment of flue gas emitted from coal-fired power plants, waste incineration plants, and other pollution sources.

[0003] In the process of mercury removal from wastewater, when the wastewater contains a large number of large particulate impurities, these impurities tend to settle at the bottom of the container. The deposited large particulate impurities may interfere with the effective contact between the reactants and the catalyst, thereby affecting the mercury removal efficiency. In addition, dead zones may also occur during conventional stirring, resulting in insufficient local reactions and further affecting the overall mercury removal effect. Summary of the Invention

[0004] To overcome the drawbacks of mercury removal from wastewater, such as the potential deposition of large particulate impurities at the bottom of the container, which interferes with the contact between reactants and catalyst and reduces removal efficiency, and the tendency for dead zones to form during conventional stirring, leading to incomplete local reactions and further affecting the overall mercury removal effect, a flue gas scrubbing wastewater mercury removal device is provided. This device can extract large particulate impurities deposited at the bottom of the container and reintroduce them into the wastewater, helping to reduce the accumulation of large particulate impurities at the bottom. At the same time, the angle of the stirring blades is adjustable, reducing local dead zones during the stirring process and improving the mercury removal efficiency of the wastewater to a certain extent.

[0005] The technical solution of the present invention is: a mercury removal device for flue gas scrubbing wastewater, including a support frame, a cylinder mounted on the support frame, a feed pipe connected to one side of the upper part of the cylinder, a discharge valve connected to one side of the lower part of the cylinder, an agitation mechanism on the support frame and the cylinder, a liquid extraction mechanism on the support frame and the cylinder, and a filtration mechanism on the cylinder, the agitation mechanism and the liquid extraction mechanism.

[0006] Furthermore, the agitation mechanism includes a vertical shaft, which is rotatably mounted on the cylinder. Two blind holes are provided on the upper and lower sides of the vertical shaft, and two openings are provided on the upper part of the vertical shaft, which communicate with the blind holes on the upper part of the vertical shaft. A scraper is provided on the vertical shaft, and a servo motor is mounted on the bracket. A transmission component is connected between the output shaft of the servo motor and the lower part of the vertical shaft.

[0007] Furthermore, the transmission assembly consists of two pulleys and a flat belt. The two pulleys are respectively mounted on the output shaft and the lower part of the vertical shaft of the servo motor, and a flat belt is wound between the two pulleys.

[0008] Furthermore, the liquid extraction mechanism includes a fixed cylinder, which is fixedly installed on the top of the cylinder body. The upper part of the vertical shaft is rotatably connected to the bottom of the fixed cylinder. An inlet pipe is connected between the bottom of the cylinder body and the top of the fixed cylinder. The cylinder body and the fixed cylinder are connected through the inlet pipe. A horizontal pipe is connected to one side of the middle of the fixed cylinder. A liquid extraction pump is installed on the side of the cylinder body away from the inlet pipe. The water inlet of the liquid extraction pump is connected to the horizontal pipe. The water outlet of the liquid extraction pump passes through the top of the cylinder body and is located in the internal space of the cylinder body. A horizontal plate is installed on the side of the fixed cylinder near the liquid extraction pump. A button is installed at the bottom of the horizontal plate. The button is electrically connected to the liquid extraction pump.

[0009] Furthermore, the filtration mechanism includes a plug, which is slidably positioned between two openings. A guide ring is fixedly installed at the lower part of the plug. An electric push rod is installed on the inlet pipe. The telescopic rod of the electric push rod slides through the top of the cylinder. A slider is installed on the telescopic rod of the electric push rod. The slider is slidably connected to one side of the guide ring. A filter cartridge is installed at the top of the vertical shaft. Both the upper and lower parts of the filter cartridge are open. The top of the filter cartridge is rotatably connected to the fixed cylinder. A ball valve body is rotatably positioned inside the horizontal pipe. A column gear is installed on the ball valve body. A rack is slidably positioned on the side of the cylinder near the pump. The teeth on the rack are located above the column gear. The lower part of the rack is slidably connected to the other side of the guide ring. The upper part of the rack is in contact with a button.

[0010] Furthermore, it also includes a brush plate, which is installed at the top of the fixed cylinder, and has several bristles on the side of the brush plate near the filter screen on the filter cylinder.

[0011] Furthermore, it also includes an adjustment mechanism, which includes a base frame. A base frame is installed at the bottom of the support frame. A rotating shaft is rotatably provided between the base frame and the vertical shaft. A turntable is installed at the bottom of the rotating shaft. Three main bevel gears are evenly spaced on the rotating shaft. The three main bevel gears are all located in blind holes at the bottom of the vertical shaft. Six blades are rotatably provided on the vertical shaft. Every two blades that are close to each other form a group. A secondary bevel gear is installed at the end of the two blades that are close to each other in each group. The two secondary bevel gears on each group of blades form a group. There are a total of three groups of secondary bevel gears. The three groups of secondary bevel gears mesh with the three main bevel gears respectively.

[0012] Furthermore, it also includes an adjustment mechanism, which includes a two-way lead screw. A two-way lead screw is rotatably provided between the cylinder and the base frame. A two-way nut is threaded onto the two-way lead screw. A pressure rod is installed on the two-way nut. The pressure rod slides through the base frame. A driven gear is installed on the two-way nut. A driving gear is installed at the lower part of the vertical shaft. The driving gear meshes with the driven gear.

[0013] Furthermore, a ring of friction pads is provided on the turntable, and the lower end of the pressure rod contacts the ring of friction pads on the turntable.

[0014] The beneficial effects are: 1. Wastewater and large particulate impurities in the cylinder are extracted by the pump and filtered through the filter cartridge. When the plug no longer blocks the blind hole above the vertical shaft, the residual wastewater in the fixed cylinder carries the large particulate impurities trapped in the filter cartridge and is discharged into the cylinder through the blind hole and the opening. This realizes the continuous extraction, filtration and reflux of large particulate impurities that have settled in the wastewater, so that the large particulate impurities are discharged back into the wastewater, reducing the accumulation of impurities at the bottom of the cylinder, thereby improving the contact efficiency between impurities and oxidant, promoting the oxidation reaction and improving the mercury removal effect.

[0015] 2. The three main bevel gears mesh to drive the six auxiliary bevel gears to rotate, and the six auxiliary bevel gears adjust the blade angle synchronously. The vertical shaft drives the rotating shaft, turntable, main bevel gears, auxiliary bevel gears and blades to rotate slowly as a whole. The blades after angle adjustment sweep the wastewater, reduce local dead corners in the stirring process, improve catalytic oxidation conditions, and improve the mercury removal efficiency of wastewater.

[0016] 3. By adjusting the rotation speed of the vertical shaft, the rotation speed of the bidirectional lead screw is controlled, thereby adjusting the pressing speed and pressing time of the pressure rod; since the contact position and timing between the pressure rod and the turntable change randomly, the blade angle is randomly adjusted during operation, further reducing the dead zone of stirring, preventing large particles of impurities from settling to the bottom, and improving the efficiency and stability of mercury removal from wastewater. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the liquid extraction mechanism and the filtration mechanism of the present invention.

[0020] Figure 4 This is a schematic diagram showing the disassembled structure of some parts of the stirring mechanism and the liquid extraction mechanism of the present invention.

[0021] Figure 5 This is a schematic diagram showing the disassembled structure of some parts of the liquid extraction mechanism and the filtration mechanism of the present invention.

[0022] Figure 6 This is a cross-sectional structural diagram of the fixed cylinder, filter cylinder, horizontal pipe and ball valve body of the present invention.

[0023] Figure 7 This is a three-dimensional structural diagram of the adjustment mechanism and the adjustment mechanism of the present invention.

[0024] Figure 8 This is a cross-sectional three-dimensional structural diagram of the adjustment mechanism and the adjustment mechanism of the present invention.

[0025] Figure 9This is a three-dimensional structural diagram of the filtration mechanism and adjustment mechanism of the present invention.

[0026] Figure 10 This is a three-dimensional structural diagram of the filtration mechanism, adjustment mechanism, and adjustment mechanism of the present invention.

[0027] Figure 11 This is a cross-sectional three-dimensional structural diagram of the vertical axis and adjustment mechanism of the present invention.

[0028] Figure 12 This is a three-dimensional structural diagram of the stirring mechanism, adjusting mechanism, and adjustment mechanism of the present invention.

[0029] Figure 13 This is a schematic diagram showing the disassembled structure of the adjustment mechanism and some parts of the adjustment mechanism of the present invention.

[0030] In the attached diagram, the following are the reference numerals: 1_support, 2_cylinder, 3_feed pipe, 4_discharge valve, 51_vertical shaft, 501_opening, 52_scraper, 53_servo motor, 54_transmission assembly, 61_fixed cylinder, 62_liquid inlet pipe, 63_horizontal pipe, 64_liquid pump, 65_horizontal plate, 66_button, 71_guide ring, 72_plug, 73_electric push rod, 74_slider, 75_filter cartridge, 76_ball valve body, 77_spur gear, 78_rack, 8_brush plate, 901_base frame, 91_rotating shaft, 92_turntable, 93_main bevel gear, 94_blade, 95_secondary bevel gear, 101_double-acting screw, 102_double-acting nut, 103_pressure rod, 104_driven gear, 105_driving gear. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0032] Example 1: A mercury removal device for flue gas scrubbing wastewater, such as Figures 1-8 As shown, the device includes a support 1, on which a cylinder 2 is mounted. A feed pipe 3 is connected to one side of the upper part of the cylinder 2, and a discharge valve 4 is connected to one side of the lower part of the cylinder 2. An agitation mechanism is provided on the support 1 and the cylinder 2 to agitate the wastewater inside the cylinder 2. A liquid extraction mechanism is provided on the support 1 and the cylinder 2 to extract the wastewater and impurities inside the cylinder 2, so that the wastewater circulates inside the cylinder 2. A filtration mechanism is provided on the cylinder 2, the agitation mechanism, and the liquid extraction mechanism to filter the impurities in the wastewater.

[0033] The stirring mechanism includes a vertical shaft 51. A vertical shaft 51 is rotatably mounted on the cylinder 2. Two blind holes are provided on the upper and lower sides of the vertical shaft 51. Two openings 501 are provided on the upper part of the vertical shaft 51, and the two openings 501 communicate with the blind holes on the upper part of the vertical shaft 51. A scraper 52 is provided on the vertical shaft 51, and the scraper 52 is in contact with the inner wall of the cylinder 2. A servo motor 53 is mounted on the bracket 1. A transmission component 54 is connected between the output shaft of the servo motor 53 and the lower part of the vertical shaft 51.

[0034] The transmission assembly 54 consists of two pulleys and a flat belt. The two pulleys are respectively mounted on the output shaft of the servo motor 53 and the lower part of the vertical shaft 51, and a flat belt is wound between the two pulleys.

[0035] The liquid extraction mechanism includes a fixed cylinder 61, which is fixedly installed on the top of the cylinder 2. The upper part of the vertical shaft 51 is rotatably connected to the bottom of the fixed cylinder 61 through a sealed bearing. An inlet pipe 62 is connected between the bottom of the cylinder 2 and the top of the fixed cylinder 61, and the cylinder 2 and the fixed cylinder 61 are connected through the inlet pipe 62. A horizontal pipe 63 is connected to one side of the middle of the fixed cylinder 61. A liquid extraction pump 64 is installed on the side of the cylinder 2 away from the inlet pipe 62. The water inlet of the liquid extraction pump 64 is connected to the horizontal pipe 63, and the water outlet of the liquid extraction pump 64 passes through the top of the cylinder 2 and is located in the internal space of the cylinder 2. A horizontal plate 65 is installed on the side of the fixed cylinder 61 near the liquid extraction pump 64. A button 66 is installed at the bottom of the horizontal plate 65. The button 66 is electrically connected to the liquid extraction pump 64 and is used to control the start and stop of the liquid extraction pump 64.

[0036] The filtration mechanism includes a plug 72, which is slidably positioned between two openings 501. The plug 72 blocks the blind hole at the top of the vertical shaft 51. A guide ring 71 is fixedly installed at the lower part of the plug 72. An electric push rod 73 is installed on the inlet pipe 62. The telescopic rod of the electric push rod 73 slides through the top of the cylinder 2. A slider 74 is installed on the telescopic rod of the electric push rod 73. The slider 74 is slidably connected to one side of the guide ring 71. A filter for filtering impurities is installed at the top of the vertical shaft 51. The filter cylinder 75 has six filter screens evenly spaced on it. The filter cylinder 75 is open at both the top and bottom. The top of the filter cylinder 75 is rotatably connected to the fixed cylinder 61. A ball valve body 76 is rotatably installed inside the horizontal tube 63. A spur gear 77 is installed on the ball valve body 76. A rack 78 is slidably installed on the side of the cylinder 2 near the liquid pump 64. The teeth on the rack 78 are located above the spur gear 77. The lower part of the rack 78 is slidably connected to the other side of the guide ring 71. The upper part of the rack 78 is in contact with the button 66.

[0037] Initially, the discharge valve 4 is closed. The operator adds an appropriate amount of wastewater and catalyst into the cylinder 2 through the feed pipe 3. Heavier, larger particles of impurities settle to the bottom of the cylinder 2. Then, the operator starts the servo motor 53. The output shaft of the servo motor 53 drives the vertical shaft 51 and the scraper 52 to rotate through the transmission assembly 54. The scraper 52 scrapes off the impurities attached to the inner wall of the cylinder 2, allowing the remaining impurities in the cylinder 2 to fully participate in the reaction. When the vertical shaft 51 rotates, it drives the plug 72, guide ring 71, and filter cartridge 75 to rotate. Then, the operator starts the liquid pump 64, and the wastewater and large particles in the cylinder 2 are discharged into the filter cartridge 75 through the liquid inlet pipe 62. The rotation of the filter cartridge 75 prevents large particles from accumulating on the filter screen. To ensure a stable wastewater flow rate and effectively filter impurities in the wastewater, preventing damage to the pump 64 due to blockage by foreign objects, the filtered wastewater flows sequentially through the fixed cylinder 61 and the horizontal pipe 63, and is discharged from the outlet of the pump 64 into the cylinder 2. The operator controls the electric push rod 73 to operate according to the set time. The extension rod of the electric push rod 73 extends for ten seconds and then retracts. During the extension of the extension rod, it drives the slider 74, guide ring 71, plug 72, and rack 78 to move downwards. When the rack 78 separates from the button 66, the pump 64 stops running. Then, the teeth on the rack 78 mesh with the spur gear 77, causing the spur gear 77 to rotate ninety degrees. The spur gear 77 then rotates the ball valve body 76 ninety degrees. At this point, the ball valve body 76 closes the horizontal pipe 63. As the rack 78 continues to move downward, the toothed block disengages from the spur gear 77. At this time, the plug 72 no longer blocks the blind hole above the vertical shaft 51. The residual wastewater in the fixed cylinder 61, carrying large particles of impurities filtered and trapped in the filter cartridge 75, is discharged into the cylinder 2 through the blind hole and opening 501. The large particles of impurities settle again at the bottom of the cylinder 2, reducing the accumulation of large particles of impurities. Subsequently, the electric push rod 73 retracts, driving the slider 74, guide ring 71, plug 72, and rack 78 to move upward. The plug 72 re-blocks the blind hole, and the toothed block on the rack 78 meshes with the spur gear 77 again, driving the spur gear 77 and the ball valve body 76 to rotate 90 degrees in the opposite direction, opening the horizontal pipe 63. During the upward movement, the toothed block disengages from the spur gear 77, the rack 78 presses button 66, and the pump 64 restarts. Through the above cycle, the impurities settled at the bottom of the wastewater are continuously extracted, filtered, and refluxed, so that the impurities are discharged back into the wastewater, making it less likely for the impurities to accumulate at the bottom of the cylinder 2, allowing them to come into more full contact with the oxidant and improving the oxidation reaction efficiency. After the wastewater is oxidized, the operator disconnects the power to the servo motor 53 and the pump 64, then places a container below the discharge valve 4, with an appropriate amount of adsorbent material (such as activated carbon or modified resin) inside the container, and then opens the discharge valve 4. The oxidized wastewater is discharged from the discharge valve 4 into the container for mercury removal treatment. After the wastewater is discharged, the operator closes the discharge valve 4.

[0038] Example 2: Based on Example 1, such as Figures 6-9As shown, it also includes a brush plate 8. A brush plate 8 is installed at the top of the fixed cylinder 61. Several bristles are provided on the side of the brush plate 8 near the filter screen on the filter cylinder 75. The bristles are in contact with the filter screen on the filter cylinder 75. The brush plate 8 is used to clean the impurities attached to the filter screen.

[0039] During the rotation of the filter cartridge 75, several bristles on the brush plate 8 continuously clean the surface of the filter screen to prevent impurities from remaining on the filter screen.

[0040] Example 3: Based on Example 2, such as Figures 7-13 As shown, it also includes an adjustment mechanism set on the support 1 and the vertical shaft 51. The adjustment mechanism is used to adjust the shear force of the stirred wastewater. The adjustment mechanism includes a base frame 901. A base frame 901 is installed at the lower part of the support 1. A rotating shaft 91 is rotatably provided between the base frame 901 and the vertical shaft 51. A turntable 92 is installed at the lower part of the rotating shaft 91. Three main bevel gears 93 are evenly spaced on the rotating shaft 91. The three main bevel gears 93 are all located in the blind holes at the lower part of the vertical shaft 51. Six blades 94 are rotatably provided on the vertical shaft 51 through sealed bearings. Every two blades 94 that are close to each other form a group. A secondary bevel gear 95 is installed at the end of the two blades 94 that are close to each other in each group. The two secondary bevel gears 95 on each group of blades 94 form a group. There are a total of three groups of secondary bevel gears 95. The three groups of secondary bevel gears 95 mesh with the three main bevel gears 93 respectively.

[0041] It also includes an adjustment mechanism set on the cylinder 2, the vertical shaft 51 and the base frame 901. The adjustment mechanism is used to intermittently adjust the angle of the blade 94. The adjustment mechanism includes a two-way lead screw 101. A two-way lead screw 101 is rotatably provided between the cylinder 2 and the base frame 901. A two-way nut 102 is threadedly connected to the two-way lead screw 101. A pressure rod 103 is installed on the two-way nut 102. The pressure rod 103 slides through the base frame 901. A driven gear 104 is installed on the two-way nut 102. A driving gear 105 is installed at the lower part of the vertical shaft 51. The driving gear 105 meshes with the driven gear 104.

[0042] A ring of friction pads is provided on the turntable 92, and the lower end of the pressure rod 103 contacts the ring of friction pads on the turntable 92.

[0043] The operator rotates the turntable 92, which drives the rotating shaft 91 to rotate. Three main bevel gears 93, evenly spaced on the rotating shaft 91, rotate synchronously with the shaft 91. The three main bevel gears 93 mesh with and drive six secondary bevel gears 95 to rotate. The six secondary bevel gears 95 are connected to six blades 94. As the secondary bevel gears 95 rotate, they drive their corresponding blades 94 to change their angles synchronously, thus adjusting the angles of the six blades 94. When the vertical shaft 51 rotates, it drives the rotating shaft 91, turntable 92, three main bevel gears 93, six secondary bevel gears 95, and six blades 94 to rotate synchronously and slowly as a whole. During the rotation, the six blades 94, with their angles adjusted, sweep the wastewater, reducing local dead zones during the stirring process, thereby improving the conditions for catalytic oxidation and increasing the efficiency of mercury removal from the wastewater.

[0044] During the rotation of the vertical shaft 51, the driving gear 105 is driven to rotate synchronously. The driving gear 105 meshes with and drives the driven gear 104 and the connected double-acting screw 101 to rotate synchronously. As the double-acting screw 101 rotates, the double-acting nut 102 threaded onto the double-acting screw 101 moves up and down axially. The double-acting nut 102 drives the pressure rod 103 connected to it to slide up and down synchronously. When the pressure rod 103 moves down and presses against the turntable 92, the rotation of the turntable 92, the shaft 91 and the three main bevel gears 93 on it are effectively stopped due to friction. However, the vertical shaft 51 continues to rotate, causing the six secondary bevel gears 95 and the six blades 94 to rotate relative to each other. The six blades 94 rotate angularly on their own axis, thereby synchronously adjusting the angle of each blade 94 during the processing. The rotational speed of the vertical shaft 51 is changed by controlling the rotational speed of the servo motor 53. The change in the rotational speed of the vertical shaft 51 directly affects the rotational speed of the bidirectional lead screw 101. The vertical shaft 51 drives the driven gear 104 and the bidirectional lead screw 101 to rotate through the driving gear 105. The rotation of the bidirectional lead screw 101 drives the bidirectional nut 102 to move up and down, thereby controlling the up and down movement of the pressure rod 103. By adjusting the rotational speed of the vertical shaft 51, the rotational speed of the bidirectional lead screw 101 can be controlled, thereby adjusting the pressing speed and pressing time of the pressure rod 103. Since the contact position and pressing time of the pressure rod 103 with the turntable 92 are randomly changed, the blade 94 can achieve random adjustment of the angle during the wastewater treatment process, further reducing the local dead angles during the stirring process, making it less likely for large particles of impurities to settle to the bottom, and improving the mercury removal efficiency in the wastewater treatment.

[0045] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A flue gas scrubbing wastewater demercuration device characterized by: The utility model provides a kind of filter device, including support (1), a cylinder (2) is installed on support (1), cylinder (2) upper side is connected and is installed with a feed pipe (3), cylinder (2) lower side is connected and is installed with a discharge valve (4), stirring mechanism is equipped on support (1) and cylinder (2), pumping mechanism is equipped on support (1) and cylinder (2), filter mechanism is equipped on cylinder (2), stirring mechanism and pumping mechanism; Stirring mechanism includes vertical shaft (51), cylinder (2) is rotatably provided with a vertical shaft (51), vertical shaft (51) upper and lower sides are provided with two blind holes respectively, vertical shaft (51) upper portion is equipped with two openings (501), two openings (501) are communicated with the blind hole of vertical shaft (51) upper portion, vertical shaft (51) is equipped with a scraping frame (52), a servo motor (53) is installed on support (1), a transmission assembly (54) is connected between the output shaft of servo motor (53) and the lower part of vertical shaft (51); Further including adjusting mechanism, adjusting mechanism includes base frame (901), a base frame (901) is installed on the lower part of support (1), a rotating shaft (91) is rotatably arranged between base frame (901) and vertical shaft (51), a turntable (92) is installed on the lower part of rotating shaft (91), three main bevel gears (93) are uniformly and interval installed on rotating shaft (91), three main bevel gears (93) are located in the blind hole of lower part of vertical shaft (51), six blades (94) are rotatably arranged on vertical shaft (51), every two blades (94) close to each other form a group, and the end close to each other of two blades (94) in each group is provided with a secondary bevel gear (95), two secondary bevel gears (95) on each group of blades (94) form a group, and there are three groups of secondary bevel gears (95) in total, and three groups of secondary bevel gears (95) are engaged with three main bevel gears (93) respectively; Further including adjusting mechanism, adjusting mechanism includes double -sided screw rod (101), rotating shaft (91) is rotatably arranged between cylinder (2) and base frame (901), double -sided screw rod (101) is screw connected with a double -sided nut (102), a pressure rod (103) is installed on double -sided nut (102), pressure rod (103) is slidably arranged through base frame (901), driven gear (104) is installed on double -sided nut (102), driving gear (105) is installed on the lower part of vertical shaft (51), and driving gear (105) is engaged with driven gear (104); Turntable (92) is provided with a ring friction plate, and the lower end of pressure rod (103) is in contact with the ring friction plate on turntable (92).

2. The flue gas washing wastewater demercuration device according to claim 1, characterized in that: Transmission assembly (54) includes two belt pulleys and a flat belt, the two belt pulleys are installed on the output shaft of servo motor (53) and the lower part of vertical shaft (51) respectively, and a flat belt is arranged between the two belt pulleys.

3. The flue gas washing wastewater demercuration device according to claim 1, characterized in that: The liquid pumping mechanism comprises a fixed cylinder (61), the top of the cylinder body (2) is fixedly provided with the fixed cylinder (61), the upper portion of the vertical shaft (51) is rotatably connected with the bottom of the fixed cylinder (61), the bottom of the cylinder body (2) is connected with the top of the fixed cylinder (61), and the cylinder body (2) is communicated with the fixed cylinder (61) through the liquid inlet pipe (62). One side of the middle portion of the fixed cylinder (61) is communicated with a horizontal pipe (63), one liquid pumping pump (64) is installed on the side of the cylinder body (2) away from the liquid inlet pipe (62), the water inlet end of the liquid pumping pump (64) is communicated with the horizontal pipe (63), the water outlet end of the liquid pumping pump (64) penetrates through the top of the cylinder body (2) and is located in the internal space of the cylinder body (2), a horizontal plate (65) is installed on the side of the fixed cylinder (61) close to the liquid pumping pump (64), a button (66) is installed on the bottom of the horizontal plate (65), and the button (66) is electrically connected with the liquid pumping pump (64).

4. The flue gas washing wastewater demercuration device according to claim 3, characterized in that: The filtering mechanism comprises a plug (72), the plug (72) is slidably arranged between the two openings (501), the plug (72) is fixedly provided with a guide ring (71) at the lower portion, an electric push rod (73) is installed on the liquid inlet pipe (62), the telescopic rod of the electric push rod (73) slidably penetrates through the top of the cylinder body (2), a sliding block (74) is installed on the telescopic rod of the electric push rod (73), the sliding block (74) is slidably connected with one side of the guide ring (71), a filter cartridge (75) is installed on the top of the vertical shaft (51), the upper and lower portions of the filter cartridge (75) are both provided with openings, the top of the filter cartridge (75) is rotatably connected with the fixed cylinder (61), a ball valve body (76) is rotatably arranged in the horizontal pipe (63), a column gear (77) is installed on the ball valve body (76), a rack (78) is slidably arranged on the side of the cylinder body (2) close to the liquid pumping pump (64), the tooth block on the rack (78) is located above the column gear (77), the lower portion of the rack (78) is slidably connected with the other side of the guide ring (71), and the upper portion of the rack (78) is in contact with the button (66).

5. The flue gas washing wastewater demercuration device according to claim 4, characterized in that: The brush plate (8) is further arranged, the brush plate (8) is arranged on the top of the fixed cylinder (61), and a plurality of bristles are arranged on the side of the brush plate (8) close to the filter screen of the filter cartridge (75).

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