A desulfurization wastewater treatment device

Abstract

The application relates to a desulfurization wastewater treatment equipment and relates to the technical field of wastewater treatment, which comprises a pool body, a water inlet pipe and a water outlet pipe are arranged on the pool body, a storage bin is arranged on the side surface of the pool body, a discharge pipe is arranged on the bottom side of the storage bin, a stirring piece is arranged on the inner wall of the storage bin, a control valve is arranged on the part of the discharge pipe close to the storage bin, a scraper abutting against the inner wall of the discharge pipe is arranged on the side surface of the discharge pipe, a transmission piece and a driving piece for driving the transmission piece to operate are arranged on the side surface of the pool body, the transmission piece is used for driving the scraper to rotate around the axis of the discharge pipe, and the driving piece, the transmission piece and the scraper are matched and arranged, when the discharge port of the lime is blocked when the lime is discharged, the driving piece is started to drive the transmission piece to operate, the transmission piece drives the scraper to rotate around the axis of the discharge pipe, the possibility that the discharge pipe is blocked when the lime is discharged is reduced, the time required by the staff for dredging the discharge pipe is reduced, and the staff is facilitated to dredge the discharge pipe.

Description

Technical Field

[0001] This application relates to the technical field of wastewater treatment, and in particular to a desulfurization wastewater treatment device. Background Technology

[0002] Flue gas contains a large amount of acidic gases such as sulfur dioxide, which seriously pollutes the environment. Therefore, it must undergo desulfurization treatment before being vented. However, desulfurization will generate a large amount of wastewater. Flue gas desulfurization wastewater is mainly the wastewater generated in the process of wet desulfurization (limestone / gypsum method) of boiler flue gas. The pollutants in desulfurization wastewater are complex, including various organic and inorganic ions, mainly ammonia nitrogen and various dissolved cations, chloride ions, sulfate ions and various heavy metal ions.

[0003] In related technologies, a desulfurization wastewater treatment device includes an inlet pipe connected to an inlet pump, the inlet pump connected to an aeration tank, the aeration tank connected to a desaturation tank, the upper end of the desaturation tank connected to a lime mixing tank, the lime mixing tank being equipped with a stirring device, the upper end of the lime mixing tank connected to a lime silo, the desaturation tank connected to a primary sedimentation tank, the primary sedimentation tank connected to an equalization tank, the equalization tank connected to a mixing tank, the upper end of the mixing tank connected to an organic sulfur tank, the mixing tank connected to an adjustment tank, and the adjustment tank connected to an acid tank.

[0004] During the operation of the aforementioned desulfurization wastewater treatment equipment, the desulfurization wastewater is usually acidic. Lime, as an alkaline substance, can neutralize the acidity of the wastewater. Therefore, adding lime to the lime mixing tank and mixing it with the wastewater can adjust the pH value of the wastewater and convert the soluble sulfides in the wastewater into insoluble sulfides. However, when lime from the lime silo is added to the lime mixing tank, clumps are prone to form on the inner wall of the lime silo's discharge pipe due to long-term storage or moisture. This may lead to blockage of the lime during discharge, and manual unblocking of the lime at the lime silo's discharge port is required, which is cumbersome and has room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide a desulfurization wastewater treatment device to solve the problem in the above-mentioned related technologies that, due to the fact that lime is prone to clumping on the inner wall of the discharge pipe of the lime silo when it is stored for a long time or is damp, it may cause the lime to be blocked during discharge, and manual unblocking of the lime at the discharge port of the lime silo is required, which is quite cumbersome.

[0006] The desulfurization wastewater treatment equipment provided in this application adopts the following technical solution:

[0007] A desulfurization wastewater treatment device includes a tank body with an inlet pipe and an outlet pipe. A storage silo is provided on the side of the tank body, and an outlet pipe is provided on the bottom side of the storage silo. An agitator is provided on the inner wall of the storage silo, and a control valve is provided on the portion of the outlet pipe near the storage silo. A scraper is provided on the side of the outlet pipe that abuts against its own inner wall. A transmission component and a drive component for driving the transmission component are provided on the side of the tank body. The transmission component is used to drive the scraper to rotate around the axis of the outlet pipe.

[0008] By adopting the above technical solution, when lime needs to be added into the tank, the discharge pipe is opened by the control valve, allowing the lime to fall into the tank, thus realizing the feeding of lime. When the lime discharges and blocks the inlet, due to the coordinated setting of the drive component, transmission component and scraper, the drive component is activated to drive the transmission component to operate, and the transmission component then drives the scraper to rotate around the axis of the discharge pipe, reducing the possibility of lime blocking the discharge pipe when discharging, reducing the time required for workers to clear the discharge pipe, thus facilitating the clearing of the discharge pipe by workers.

[0009] Optionally, the scraper is provided with several adjusting teeth on the side away from the part that abuts against the inner wall of the discharge pipe.

[0010] By adopting the above technical solution, due to the setting of the adjusting teeth on one side of the scraper, the scraper can simultaneously clear and break up lime clumps in the discharge pipe during its rotation process while abutting against the inner wall of the discharge pipe, thereby improving the scraper's clearing effect on lime accumulated inside the discharge pipe.

[0011] Optionally, the transmission component includes a fixed shaft, a first bevel gear fixed on the fixed shaft, and a second bevel gear rotatably connected to the inner wall of the pool, wherein the second bevel gear meshes with the first bevel gear; the driving component is a drive motor fixed outside the pool, wherein the output shaft of the drive motor is coaxially and fixedly connected to the fixed shaft, wherein the plane of the second bevel gear is parallel to the bottom side of the pool, and a transmission rod is eccentrically arranged on the side of the second bevel gear near the discharge pipe, wherein one end of the transmission rod is fixedly connected to the scraper.

[0012] By adopting the above technical solution, when lime clogs the discharge pipe, the drive motor is started, which drives the fixed shaft and the first bevel gear to rotate, which in turn drives the second bevel gear to rotate, the transmission rod to rotate eccentrically, and finally drives the scraper to rotate, thereby clearing the discharge pipe.

[0013] Optionally, a stirring blade is fixedly provided at the end of the fixed shaft away from the drive motor.

[0014] By adopting the above technical solution, since the stirring blade is fixedly installed at the end of the fixed shaft away from the drive motor, when the drive motor drives the fixed shaft to rotate, it will synchronously drive the stirring blade to rotate, thereby stirring the pool water near the box and reducing the possibility of lime accumulating near the box.

[0015] Optionally, the inner wall of the pool is provided with a protective box sleeved on the outer side of the first bevel gear and the second bevel gear. The protective box includes a box body and a box cover. The box body has a first through hole for the fixed shaft to pass through, and the box cover has a second through hole for the transmission rod to rotate eccentrically.

[0016] By adopting the above technical solution, the combination of the housing and the cover reduces the possibility of impurities in the pool adhering to the first and second bevel gears, thereby improving the protection of the first and second bevel gears.

[0017] Optionally, the box cover is provided with a sealing cover located above the second through hole. The sealing cover is rotatably connected to the upper side of the box cover, and the sealing cover has a sealing hole for the transmission rod to pass through.

[0018] By adopting the above technical solution, due to the installation of the sealing cover and its rotatable connection with the upper side of the tank cover, the possibility of impurities in the tank entering the tank through the second through hole is reduced, thereby further improving the protection of the first and second bevel gears.

[0019] Optionally, a toothed ring is fixedly sleeved on the outer peripheral surface of the sealing cover, a rotating shaft is rotatably connected to the cover, a cleaning fan is provided at the end of the rotating shaft away from the sealing cover, and a transmission gear that meshes with the toothed ring is provided on the outer peripheral surface of the rotating shaft.

[0020] By adopting the above technical solution, when the sealing cover rotates, it drives the transmission gear to rotate, which in turn drives the cleaning fan to rotate. In this way, the cleaning fan stirs up the wastewater below the discharge pipe, reducing the possibility of lime accumulating on the sealing cover.

[0021] Optionally, the sealing cover is provided with an annular retaining strip, and the box cover is provided with an annular retaining groove at the opening edge of the second through hole for inserting and rotating the annular retaining strip, and the cross-sectional shape of the annular retaining strip is barbed.

[0022] By adopting the above technical solution, due to the cooperative arrangement of the annular locking strip and the annular locking groove, the annular locking strip on the sealing cover is inserted into the annular locking groove on the box cover, thereby realizing the rotational connection between the sealing cover and the box cover. At the same time, a sealing hole is provided on the sealing cover for the transmission rod to pass through. When the transmission rod rotates, it drives the sealing cover to rotate relative to the box cover without affecting the rotation of the transmission rod.

[0023] Optionally, a number of spaced-apart baffles are rotatably connected to the inner wall of the pool, and the pool is provided with an adjusting component for adjusting and fixing the rotation angle of the baffles.

[0024] By adopting the above technical solution, the mixing degree of pool water and lime is improved due to the installation of the baffle plate, thereby improving the treatment effect of desulfurization wastewater; and when it is necessary to clean the bottom side of the pool, the baffle plate can be rotated to a position that abuts against the side wall of the pool and fixed by the adjusting parts, so as to facilitate the staff to clean the bottom side of the pool.

[0025] Optionally, the adjusting component includes a positioning pin and an adjusting rod hinged to the upper side of the baffle plate. The end of the adjusting rod away from the baffle plate is provided with a fixing hole through which the positioning pin passes. The upper side of the pool body is provided with a plurality of positioning grooves for the positioning pin to be inserted and which are coaxial with the fixing holes.

[0026] By adopting the above technical solution, due to the matching arrangement of the adjustment components, the end of the adjustment rod away from the spoiler is fixed to the fixing holes at different positions by the positioning pin. After the positioning pin passes through the fixing hole, it is inserted into the corresponding positioning groove, thereby realizing the adjustment of the installation angle of the spoiler.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Due to the coordinated design of the drive unit, transmission unit, and scraper, when lime discharges and blocks the feed inlet, the drive unit is activated to drive the transmission unit to operate, and the transmission unit then drives the scraper to rotate around the axis of the discharge pipe. This reduces the possibility of lime clogging the discharge pipe during discharge, and reduces the time required for workers to clear the discharge pipe, thus facilitating the clearing of the discharge pipe by workers.

[0029] 2. Due to the installation of the sealing cover and its rotatable connection with the upper side of the tank cover, the possibility of impurities in the tank entering the tank through the second through hole is reduced, thereby further improving the protection of the first and second bevel gears.

[0030] 3. Due to the coordinated design of the gear ring and transmission gear, the rotation of the sealing cover drives the transmission gear to rotate, which in turn drives the cleaning fan to rotate. This design, by agitating the wastewater below the discharge pipe, reduces the likelihood of lime accumulating on the sealing cover. Since a stirring blade is fixedly installed at the end of the fixed shaft furthest from the drive motor, the rotation of the fixed shaft by the drive motor synchronously drives the stirring blade, further agitating the pool water near the tank and reducing the possibility of lime accumulating near the tank. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0033] Figure 2 This is a partial cross-sectional view of the installation and assembly of the storage silo, as shown in Embodiment 1 of this application.

[0034] Figure 3 This is a cross-sectional structural diagram illustrating the installation and assembly of the spoiler in Embodiment 1 of this application;

[0035] Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle;

[0036] Figure 5 This is a partial cross-sectional view of Embodiment 1 of this application, illustrating the installation and assembly of the protective box and the transmission components.

[0037] Figure 6 yes Figure 5 Enlarged schematic diagram of part B in the middle;

[0038] Figure 7 yes Figure 5 An enlarged schematic diagram of section C;

[0039] Figure 8 This is a partial structural diagram illustrating the installation and assembly of the cleaning fan in Embodiment 2 of this application;

[0040] Figure 9 This is a partial cross-sectional view of Embodiment 2 of this application, illustrating the installation and assembly of the cleaning fan and the stirring blades.

[0041] In the diagram, 1. Pool body; 11. Inlet pipe; 12. Outlet pipe; 13. Baffle plate; 14. Adjusting component; 141. Positioning pin; 142. Adjusting rod; 1421. Fixing hole; 15. Positioning groove; 16. Baffle fan; 2. Storage bin; 21. Discharge pipe; 22. Control valve; 23. Inlet; 24. Agitator; 241. First motor; 242. Agitator shaft; 3. Support frame; 4. Scraper; 41. Adjusting gear; 5. Transmission component; 51. Fixed... 52. Fixed shaft; 53. First bevel gear; 54. Second bevel gear; 55. Transmission rod; 6. Stirring blade; 76. Driving component; 67. Drive motor; 78. Protective box; 79. Box body; 70. Support plate; 712. First through hole; 713. Annular groove; 72. Box cover; 721. Second through hole; 722. Rotating shaft; 73. Sealing cover; 74. Annular retaining strip; 75. Sealing hole; 76. Gear ring; 77. Transmission gear; 78. Cleaning fan. Detailed Implementation

[0042] The present application will be further described in detail below with reference to all the accompanying drawings.

[0043] Example 1:

[0044] Reference Figure 1 and Figure 2 A desulfurization wastewater treatment device includes a tank body 1. The tank body 1 is provided with an inlet pipe 11 for wastewater to flow in and an outlet pipe 12 for wastewater to discharge. The side of the tank body 1 is provided with a storage bin 2 for storing lime and a support frame 3 for supporting the storage bin 2. The bottom side of the storage bin 2 is provided with an outlet pipe 21 located above the tank body 1. The part of the outlet pipe 21 near the storage bin 2 is provided with a control valve 22 for controlling the opening and closing of the outlet pipe 21. When it is necessary to add lime into the tank body 1, the outlet pipe 21 is opened by the control valve 22 so that the lime can fall into the tank body 1, thereby realizing the feeding of lime.

[0045] Reference Figure 2 The storage silo 2 is also equipped with a feed inlet 23, and the inner wall of the storage silo 2 is provided with a stirring element 24, which includes a stirring shaft 242 and a first motor 241 for driving the stirring shaft 242 to rotate, thereby stirring the lime stored inside the storage silo 2 and reducing the possibility of lime solidification inside the storage silo 2. The control valve 22 is a solenoid valve, which is a conventional structure and will not be described in detail here.

[0046] Reference Figure 3 and Figure 4The inner wall of the pool body 1 is rotatably connected to several spaced-apart baffles 13. The pool body 1 is provided with an adjusting member 14 for adjusting and fixing the rotation angle of the baffles 13. The adjusting member 14 includes a positioning pin 141 and an adjusting rod 142 hinged to the upper side of the baffle 13. The end of the adjusting rod 142 away from the baffle 13 is provided with a fixing hole 1421 through which the positioning pin 141 passes. Several positioning grooves 15 are provided on the upper side of the pool body 1 for the positioning pin 141 to be inserted and can be coaxial with the fixing hole 1421. When it is necessary to clean the bottom side of the pool body 1, the baffles 13 can be rotated to a position abutting against the side wall of the pool body 1 and fixed by the adjusting member 14, thereby facilitating the cleaning of the bottom side of the pool body 1 by the staff.

[0047] Reference Figure 3 Each baffle plate 13 is rotatably connected to two baffle fans 16. Wastewater enters from the inlet pipe 11 and is limited by the baffle plate 13. During the flow of wastewater, it impacts the baffle fans 16, thereby driving the baffle fans 16 to rotate. This further improves the mixing effect of wastewater and lime in the pool 1 and enhances the desulfurization effect of wastewater.

[0048] Reference Figure 5 and Figure 6 The discharge pipe 21 has a scraper 4 on its side that abuts against the inner wall of the discharge pipe 21. The tank body 1 has a transmission component 5 and a drive component 6 on its side to drive the transmission component 5. The drive component 6 is a drive motor 61. The transmission component 5 drives the scraper 4 to rotate around the axis of the discharge pipe 21. This configuration allows the drive motor 61 to drive the transmission component 5, which in turn drives the scraper 4 to rotate synchronously, reducing the possibility of lime clogging the discharge pipe 21 during the feeding process and thus clearing the discharge pipe 21. The scraper 4 has several adjusting teeth 41 on its side away from the part that abuts against the inner wall of the discharge pipe 21. During the rotation of the scraper 4 while abutting against the inner wall of the discharge pipe 21, it also clears and breaks up lime clumps within the discharge pipe 21, improving the clearing effect of the scraper 4 on the lime within the discharge pipe 21.

[0049] Reference Figure 5The transmission component 5 includes a fixed shaft 51, a first bevel gear 52 fixed on the fixed shaft 51, and a second bevel gear 53 rotatably connected to the inner wall of the pool body 1. The output shaft of the drive motor 61 passes through the side wall of the pool body 1 and is coaxially fixedly connected to the fixed shaft 51. After the second bevel gear 53 is installed, the second bevel gear 53 and the first bevel gear 52 mesh with each other. The plane of the second bevel gear 53 is parallel to the bottom side of the pool body 1. At the same time, a transmission rod 54 is eccentrically fixed on the side of the second bevel gear 53 near the discharge pipe 21. The axis of the transmission rod 54 in the length direction is perpendicular to the bottom side of the pool body 1, and the end of the transmission rod 54 away from the second bevel gear 53 is fixedly connected to the lower end of the scraper 4. The drive motor 61 drives the fixed shaft 51 and the first bevel gear 52 to rotate, which in turn drives the second bevel gear 53 to rotate. The transmission rod 54 rotates eccentrically, which finally drives the scraper 4 to rotate around the axis of the discharge pipe 21, thereby clearing the discharge pipe 21.

[0050] Reference Figure 5 The inner wall of the pool body 1 is provided with a protective box 7 installed on the outer side of the first bevel gear 52 and the second bevel gear 53. The protective box 7 includes a box body 71 and a box cover 72. The box body 71 is fixed to the inner wall of the pool body 1 by bolts. A support plate 711 for supporting the second bevel gear 53 is welded and fixed to the inner wall of the box body 71. The support plate 711 is rotatably connected to the second bevel gear 53. The box cover 72 is fixed to the box body 71 by bolts. A first through hole 712 is opened on the box body 71 for the fixed shaft 51 to pass through and rotate. A second through hole 721 is opened on the box cover 72 for the transmission rod 54 to rotate eccentrically. This reduces the possibility of impurities in the pool body 1 adhering to the first bevel gear 52 and the second bevel gear 53 and improves the protection of the first bevel gear 52 and the second bevel gear 53.

[0051] Reference Figure 5 and Figure 7 The box cover 72 is provided with a sealing cover 73 located above the second through hole 721. The sealing cover 73 is rotatably connected to the upper side of the box cover 72. An annular retaining strip 731 is welded and fixed on the sealing cover 73. The cross-sectional shape of the annular retaining strip 731 is barbed. The box cover 72 has an annular groove 713 at the opening edge of the second through hole 721 for the annular retaining strip 731 to be inserted and rotated, thereby realizing the rotatable connection between the sealing cover 73 and the box cover 72. At the same time, a sealing hole 732 is opened on the sealing cover 73 for the transmission rod 54 to pass through. When the transmission rod 54 rotates, it drives the sealing cover 73 to rotate relative to the box cover 72. By rotating the sealing cover 73 and the box cover 72, the possibility of impurities in the pool 1 entering the box 71 through the second through hole 721 is reduced.

[0052] The implementation principle of this application embodiment is as follows:

[0053] When lime needs to be added into the tank 1, the first motor 241 is started to drive the stirring shaft 242 to rotate, which agitates the lime stored in the storage bin 2. Then, the discharge pipe 21 is opened through the control valve 22, allowing the lime to fall into the tank 1, thus realizing the feeding of lime. Furthermore, due to the installation of the baffle 13, the mixing degree between the tank water and lime is improved, thereby improving the treatment effect of desulfurization wastewater. When it is necessary to clean the bottom side of the tank 1, the baffle 13 can be rotated to a position that abuts against the side wall of the tank 1 and fixed by the adjusting part 14, which facilitates the cleaning of the bottom side of the tank 1 by the staff.

[0054] When lime discharges and blocks the feed inlet 23, the drive unit 6, the transmission unit 5 and the scraper 4 are coordinated to start the drive unit 6, drive the motor 61 to drive the fixed shaft 51 and the first bevel gear 52 to rotate, which in turn drives the second bevel gear 53 to rotate, the transmission rod 54 rotates eccentrically, and finally drives the scraper 4 to rotate, thereby clearing the discharge pipe 21.

[0055] Example 2:

[0056] Reference Figure 8 and Figure 9 The difference between this embodiment and Embodiment 1 is that a toothed ring 74 is fixedly sleeved on the outer peripheral surface of the sealing cover 73, and the toothed ring 74 is welded and fixed to the sealing cover 73. A rotating shaft 722 is rotatably connected to the box cover 72. The rotating shaft 722 rotates relative to the sealing cover 73, and a transmission gear 75 that meshes with the toothed ring 74 is provided on the outer peripheral surface of the rotating shaft 722. A cleaning fan 76 is provided at the end of the rotating shaft 722 away from the sealing cover 73. With this configuration, when the sealing cover 73 rotates, it drives the transmission gear 75 to rotate, which in turn drives the cleaning fan 76 to rotate. With this configuration, the wastewater in the area below the discharge pipe 21 is stirred by the cleaning fan 76, thereby reducing the possibility of lime accumulating on the sealing cover 73.

[0057] Reference Figure 9 A stirring blade 55 is fixedly sleeved at the end of the fixed shaft 51 that is away from the drive motor 61 and passes through the box 71. With this configuration, when the drive motor 61 drives the fixed shaft 51 to rotate, it synchronously drives the stirring blade 55 to rotate, thereby agitating the pool water near the box 71 and reducing the possibility of lime accumulating near the box 71.

[0058] Unless otherwise defined, the terms or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar words used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "one," and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar words mean that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0059] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A desulfurization wastewater treatment device, comprising a tank (1), wherein the tank (1) is provided with an inlet pipe (11) and an outlet pipe (12), a storage silo (2) is provided above the tank (1), an outlet pipe (21) is provided on the bottom side of the storage silo (2), a stirring element (24) is provided inside the storage silo (2), and a control valve (22) is provided on the part of the outlet pipe (21) near the storage silo (2); characterized in that, The side of the discharge pipe (21) is provided with a scraper (4) that abuts against its own inner wall. The inside of the pool body (1) is provided with a transmission component (5). The outside of the pool body (1) is provided with a drive component (6) for driving the transmission component (5) to rotate. The transmission component (5) is used to drive the scraper (4) to rotate around the axis of the discharge pipe (21). The scraper (4) has several adjusting teeth (41) on its side away from the part that abuts against the inner wall of the discharge pipe (21); the transmission component (5) includes a fixed shaft (51), a first bevel gear (52) fixedly sleeved on the fixed shaft (51), and a second bevel gear (53) rotatably connected to the inner wall of the pool body (1), wherein the second bevel gear (53) meshes with the first bevel gear (52); The driving component (6) is a drive motor (61) fixed outside the pool body (1). The output shaft of the drive motor (61) is coaxially and fixedly connected to the fixed shaft (51). The plane of the second bevel gear (53) is parallel to the bottom side of the pool body (1). The side of the second bevel gear (53) near the discharge pipe (21) is eccentrically provided with a transmission rod (54). One end of the transmission rod (54) is fixedly connected to the scraper (4). A stirring blade (55) is fixedly installed at the end of the fixed shaft (51) away from the drive motor (61); a protective box (7) is provided on the inner wall of the pool body (1) and sleeved on the outer side of the first bevel gear (52) and the second bevel gear (53). The protective box (7) includes a box body (71) and a box cover (72). A first through hole (712) is opened on the box body (71) for the fixed shaft (51) to pass through, and a second through hole (721) is opened on the box cover (72) for the transmission rod (54) to rotate eccentrically. The box cover (72) is provided with a sealing cover (73) located above the second through hole (721). The sealing cover (73) is rotatably connected to the upper side of the box cover (72). The sealing cover (73) is provided with a sealing hole (732) for the transmission rod (54) to pass through. A toothed ring (74) is fixedly sleeved on the outer circumferential surface of the sealing cover (73). A rotating shaft (722) is rotatably connected to the box cover (72). A cleaning fan (76) is provided at the end of the rotating shaft (722) away from the sealing cover (73). A transmission gear (75) that meshes with the toothed ring (74) is provided on the outer circumferential surface of the rotating shaft (722).

2. The desulfurization wastewater treatment equipment according to claim 1, characterized in that, The sealing cover (73) is provided with an annular retaining strip (731), and the box cover (72) is provided with an annular retaining groove (713) at the opening edge of the second through hole (721) for inserting and rotating the annular retaining strip (731). The cross-sectional shape of the annular retaining strip (731) is hook-shaped.

3. The desulfurization wastewater treatment equipment according to claim 1, characterized in that, The inner wall of the pool body (1) is rotatably connected with several spaced baffles (13), and the pool body (1) is provided with an adjusting component (14) for adjusting and fixing the rotation angle of the baffles (13).

4. The desulfurization wastewater treatment equipment according to claim 3, characterized in that, The adjusting component (14) includes a positioning pin (141) and an adjusting rod (142) hinged to the upper side of the baffle (13). The end of the adjusting rod (142) away from the baffle (13) is provided with a fixing hole (1421) through which the positioning pin (141) passes. The upper side of the pool body (1) is provided with a plurality of positioning grooves (15) for the positioning pin (141) to be inserted and coaxial with the fixing hole (1421).

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