Sewage treatment tank

Abstract

The invention discloses a sewage treatment box, and relates to the technical field of sewage treatment, the sewage treatment box comprises a box body, the box body is provided with a support frame, and the support frame is provided with a foam breaking and medicine dispersing mechanism; the bubble breaking and medicine dispersing mechanism comprises a conical bubble breaking block, an up-down reciprocating driving assembly used for breaking bubbles on the surface of the sewage and driving the conical bubble breaking block to be inserted into the surface of the sewage in an up-down reciprocating mode, a rotary linkage assembly is arranged above the conical bubble breaking block, and dispersing blades are arranged on the side wall of the conical bubble breaking block; and the rotary linkage assembly drives the scattering blades on the conical bubble breaking block to rotate and scatter the powdery medicament gathered on the surface of the sewage. According to the device, through the conical bubble breaking block capable of moving up and down in a reciprocating manner, bubbles on the surface of sewage are efficiently broken, and the problem of residues of oil stains and smudginess in the bubbles is solved, so that the sewage treatment efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment, and specifically relates to a sewage treatment tank. Background Art

[0002] When treating domestic sewage, chemicals are added to the sedimentation tank, which can accelerate the sedimentation rate and the separation of oil and water, and can also adsorb smaller particles, which is beneficial to the filtration effect of sewage. However, the existing chemicals are directly added in the form of powdered flocculants during the addition process. The iron-based and aluminum-based flocculants dissolve slowly in water, resulting in poor use effects of the flocculants and affecting the filtration and sedimentation.

[0003] In the field of sewage treatment, traditional treatment methods often face many challenges. Problems such as oil and dirt residues in bubbles, local over-accumulation and caking of chemicals, low treatment efficiency, and incomplete removal of oil stains have always been the key factors restricting the sewage treatment effect.

[0004] Traditional sewage treatment equipment usually lacks an efficient bubble-breaking mechanism, resulting in the difficulty of completely separating the oil and dirt in the bubbles. This not only affects the purification quality of the sewage but also increases the difficulty of subsequent treatment. At the same time, the chemical dosing method often has deficiencies, and the chemicals are prone to local over-accumulation and form caking, reducing the utilization rate of the chemicals and prolonging the sewage treatment cycle. Summary of the Invention

[0005] To solve the problems raised in the above background art, the present invention proposes a sewage treatment tank.

[0006] The object of the present invention can be achieved by the following technical solutions: A sewage treatment tank includes a box body, a support frame is arranged on the box body, and a bubble-breaking chemical-dispersing mechanism is arranged on the support frame;

[0007] The bubble-breaking chemical-dispersing mechanism includes a conical bubble-breaking block for breaking the bubbles on the surface of the sewage, and an up-and-down reciprocating driving component for driving the conical bubble-breaking block to reciprocate up and down and insert into the surface of the sewage. A rotary linkage component is arranged above the conical bubble-breaking block, and dispersing blades are arranged on the side wall of the conical bubble-breaking block. The rotary linkage component drives the dispersing blades on the conical bubble-breaking block to rotate and disperse the powdered chemicals aggregated on the surface of the sewage.

[0008] As a further preference of this technical solution: The up-and-down reciprocating driving component includes a fixed seat fixedly arranged on the support frame, a transmission shaft is rotatably connected to the fixed seat, a first connecting rod arranged in a linear array is fixedly connected to the transmission shaft, and a second connecting rod is rotatably connected to the end of the first connecting rod away from the transmission shaft;

[0009] The up-and-down reciprocating drive assembly further includes a plurality of sliding shafts slidably disposed on the support frame. An articulated seat is fixedly connected to the upper end of each sliding shaft, and the articulated seat is rotatably connected to the second connecting rod directly above it. A connecting plate is fixedly connected to the lower end of the articulated seat.

[0010] As a further preference of this technical solution: A vibration generating assembly is disposed below the up-and-down reciprocating drive assembly;

[0011] It includes a first rotating shaft rotatably connected to the bottom surface of the connecting plate. A first disc is fixedly connected to the lower end of the first rotating shaft. A connecting shaft is slidably connected to the first disc. A second disc is fixedly connected to the lower end of the connecting shaft, and a spring disposed between the first disc and the second disc is sleeved on the outer side of the connecting shaft;

[0012] The top surface of the conical bubble-breaking block is fixedly connected to the second disc.

[0013] As a further preference of this technical solution: The rotation linkage assembly includes a plurality of screw rods connected to the support frame through articulated seats. A screw sleeve is respectively disposed on each screw rod, and a driving gear is fixedly connected to the outer wall of the screw sleeve;

[0014] The rotation linkage assembly further includes a connecting seat fixedly connected to the connecting plate, and the screw sleeve is rotatably connected to the connecting seat;

[0015] The rotation linkage assembly further includes a plurality of driven gears respectively fixedly connected to the first rotating shaft, and the plurality of driven gears are meshed with each other. The first driven gear is meshed with the driving gear.

[0016] As a further preference of this technical solution: A chemical addition port is provided on the box body for adding powdery chemicals. A plurality of fan assemblies are also provided on the box body, and the fan assemblies are disposed below the chemical addition port.

[0017] As a further preference of this technical solution: An oil stain collection tank is provided on one side of the box body away from the chemical addition port for storing the squeezed and separated oil stains. An adsorption oil removal mechanism is provided on the oil stain collection tank;

[0018] It includes an extrusion assembly and a second rotating shaft disposed on the extrusion assembly. An oil-absorbing sponge is disposed on the second rotating shaft for adsorbing the oil stains on the surface of the sewage.

[0019] As a further preference of this technical solution: The extrusion assembly includes a support seat fixedly connected to the side wall of the oil stain collection tank. A plurality of pressing shafts arranged in two rows side by side are rotatably connected to the support seat;

[0020] A magnetic slide rail is further provided on the support base, and a magnetic slider matching with the magnetic slide rail is provided on the magnetic slide rail;

[0021] The second rotating shaft is fixedly connected to the magnetic slider.

[0022] As a further preference of this technical solution: The adsorption and oil removal mechanism further includes a rotary adsorption component;

[0023] The rotary adsorption component includes an electric push rod arranged on the side wall of the box body through a fixed block. The output end of the electric push rod is fixedly connected with a transmission block, and a rack is fixedly connected to the transmission block;

[0024] A transmission gear matching with the rack is arranged on the second rotating shaft.

[0025] As a further preference of this technical solution: An air delivery pipe is arranged on the inner bottom wall of the box body, and a plurality of aeration nozzles are arranged on the air delivery pipe.

[0026] As a further preference of this technical solution: A sewage inlet and an aeration air inlet are arranged on the box body, and the aeration air inlet is connected to the air delivery pipe in a through manner.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. In the present invention, through the conical bubble-breaking block capable of reciprocating up and down, the efficient breaking of the bubbles on the surface of the sewage is realized, the residue of oil and dirt in the bubbles is solved, and thus the sewage treatment efficiency is significantly improved.

[0029] 2. In the present invention, in the process of the up and down movement of the conical bubble-breaking block, by utilizing the linkage cooperation of the screw rod and the screw sleeve, the conical bubble-breaking block drives the dispersing blades thereon to effectively disperse the aggregated powdery medicament, avoiding the local over-aggregation and caking of the medicament. This not only improves the utilization rate of the medicament, but also ensures that the medicament can be more fully mixed and reacted with the sewage, shortening the sewage treatment cycle.

[0030] 3. In the present invention, the vibration generating component is arranged to make the conical bubble-breaking block vibrate up and down, thereby increasing the number of times the conical bubble-breaking block reciprocates up and down to break the bubbles, and improving the efficiency of bubble treatment.

[0031] 4. In the present invention, the oil-absorbing sponge can efficiently remove the oil on the surface of the sewage. At the same time, the extrusion component in the adsorption and oil removal mechanism can extrude the oil on the oil-absorbing sponge, so that the oil-absorbing sponge can be recycled multiple times, reducing the operation cost.

[0032] 5. In the present invention, during the process of oil stain collection, the rack drives the transmission gear to rotate, enabling the oil-absorbing sponge to rotate evenly when adsorbing oil stains, avoiding the problem of rapid saturation caused by the accumulation of oil stains on one side, increasing the single-time oil stain adsorption amount, and thus enhancing the overall oil stain removal ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0034] Figure 2 is a partial three-dimensional structural schematic Figure 1 ;

[0035] Figure 3 is a partial three-dimensional structural schematic Figure 2 ;

[0036] Figure 4 is Figure 1 an enlarged schematic diagram at A in

[0037] Figure 5 is Figure 3 an enlarged schematic diagram at B in

[0038] Figure 6 is a partial structural cross-sectional view of the present invention;

[0039] Figure 7 is a partial three-dimensional structural schematic Figure 3 .

[0040] Legend: 1. Box body; 11. Sewage inlet; 12. Aeration inlet; 13. Chemical addition port; 2. Support frame; 3. Bubble-breaking and chemical-dispersing mechanism; 31. Up-and-down reciprocating drive assembly; 311. Fixed seat; 312. Drive motor; 313. First connecting rod; 314. Second connecting rod; 315. Hinge seat; 316. Sliding shaft; 317. Connecting plate; 32. Conical bubble-breaking block; 33. Dispersing blades; 34. Vibration generating assembly; 341. First rotating shaft; 342. First disc; 343. Connecting shaft; 344. Spring; 345. Second disc; 35. Rotating linkage assembly; 351. Connecting block; 352. Screw; 353. Screw sleeve; 354. Driving gear; 355. Driven gear; 356. Connecting seat; 4. Adsorption and oil removal mechanism; 41. Extrusion assembly; 411. Support seat; 412. Pressing shaft; 413. Magnetic slide rail; 414. Magnetic slider; 42. Oil-absorbing sponge; 43. Second rotating shaft; 44. Transmission gear; 45. Rotating adsorption assembly; 451. Fixed block; 452. Electric push rod; 453. Transmission block; 454. Rack; 5. Fan assembly; 6. Air delivery pipe; 7. Aeration nozzle; 8. Oil stain collection tank. DETAILED DESCRIPTION OF THE INVENTION

[0041] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0042] Embodiment 1:

[0043] Please refer to Figures 1 - 7 , this application provides a sewage treatment tank, including a tank body 1. A support frame 2 is provided on the tank body 1 to play a role of support and fixation. A bubble-breaking and medicine-scattering mechanism 3 is provided on the support frame 2; it is used to pierce the bubbles on the surface of the sewage, so that the oil stains and dirt remaining inside the bubbles are discharged, and can scatter the powdery medicine floating on the surface of the sewage, reducing the problem of agglomeration of the powdery medicine. The bubble-breaking and medicine-scattering mechanism 3 includes a conical bubble-breaking block 32, which is used to break the bubbles on the surface of the sewage. Its shape is conical, and the sharp part at the lower end contacts the surface of the sewage first. On the one hand, it can better pierce the bubbles. On the other hand, its top surface is larger and the bottom end is relatively sharp, which can reduce the influence of the resistance of the sewage during the process of inserting into the sewage, and an up-and-down reciprocating driving component 31 for driving the conical bubble-breaking block 32 to reciprocate up and down and insert into the surface of the sewage. A rotation linkage component 35 is arranged above the conical bubble-breaking block 32, and a scattering blade 33 is arranged on the side wall of the conical bubble-breaking block 32. The scattering blades 33 are arranged in an annular array on the side surface of the conical bubble-breaking block 32, and its edge can rotate on the surface of the sewage to disperse the aggregated medicine powder. The rotation linkage component 35 drives the scattering blades 33 on the conical bubble-breaking block 32 to rotate, and scatters the powdery medicine aggregated on the surface of the sewage. The up-and-down reciprocating driving component 31 includes a fixed seat 311 fixedly arranged on the support frame 2. A transmission shaft is rotatably connected to the fixed seat 311 and is driven by a driving motor 312, and the driving motor 312 is fixedly connected to the fixed seat 311. A first connecting rod 313 arranged in a linear array is fixedly connected to the transmission shaft. The end of the first connecting rod 313 away from the transmission shaft is rotatably connected to a second connecting rod 314. The up-and-down reciprocating driving component 31 further includes a plurality of sliding shafts 316 slidably arranged on the support frame 2. The number of the sliding shafts 316 is the same as the number of the second connecting rods 314, and they are arranged in one-to-one correspondence directly below the second connecting rods 314. Corresponding sliding hole grooves are provided on the support frame 2 for their sliding to play a role of limiting and guiding. The upper end of each sliding shaft 316 is fixedly connected with a hinge seat 315, and the hinge seat 315 is rotatably connected to the second connecting rod 314 directly above it. A connecting plate 317 is fixedly connected to the lower end of the hinge seat 315, which is used to integrate a plurality of conical bubble-breaking blocks 32 into a conical bubble-breaking block 32 for easy operation.

[0044] Specifically, the drive motor 312 drives the transmission shaft to rotate, and the transmission shaft drives a plurality of first connecting rods 313 above to rotate. Then, through the cooperation with the second connecting rod 314, the sliding shaft 316 reciprocates up and down. The sliding shaft 316 drives the connecting plate 317 below to reciprocate up and down. A vibration generating assembly 34 and a conical bubble-breaking block 32 are installed on the connecting plate 317. Therefore, it can drive the conical bubble-breaking block 32 thereon to reciprocate up and down to pierce the bubbles floating on the sewage surface generated by aeration and oil pollution, and then pierce the floating substances and oil pollution attached in the bubbles and mix them into the sewage, facilitating full contact reaction with the powdery agent and improving the sewage treatment capacity. Here, it should be noted that the powdery agent is a mixed agent capable of separating the sediment of oil pollution in the sewage.

[0045] In this embodiment, an air delivery pipe 6 is provided on the inner bottom wall of the box body 1, and a plurality of aeration nozzles 7 are provided on the air delivery pipe 6. The sewage is tumbled and flowed through aeration. A sewage inlet 11 and an aeration air inlet 12 are provided on the box body 1. Both the sewage inlet 11 and the aeration air inlet 12 are pipes with built-in valves, and the sewage can be pumped into the interior of the box body 1 through an external sewage pump. The aeration air inlet 12 is connected to the air delivery pipe 6 in a through manner, and the air is pumped in by connecting to an external air pump.

[0046] In this embodiment, a medicine adding port 13 is provided on the box body 1 for adding the powdery agent. A plurality of fan assemblies 5 are also provided on the box body 1, and the fan assemblies 5 are arranged below the medicine adding port 13, facilitating blowing the oil pollution to the oil pollution collection area and enabling the powdery agent to be fully blown in the sewage, so as to avoid local aggregation near the medicine adding port 13.

[0047] Embodiment Two:

[0048] On the basis of the first embodiment, a vibration generating assembly 34 is provided below the vertical reciprocating driving assembly 31. The vibration generating assembly 34 includes a first rotating shaft 341 rotatably connected to the bottom surface of the connecting plate 317. It should be noted that a plurality of first rotating shafts 341 are provided on the bottom surface of each connecting plate 317, and the plurality of first rotating shafts 341 are arranged in a linear array. Moreover, a plurality of connecting plates 317 are also provided, which are arranged in a linear array above the box body 1, achieving most of the coverage above the box body 1, and can improve the efficiency of breaking bubbles and dispersing powdered medicaments. The lower end of the first rotating shaft 341 is fixedly connected to a first disc 342, which serves as a connection. A connecting shaft 343 is slidably connected to the first disc 342. The lower end of the connecting shaft 343 is fixedly connected to a second disc 345. And a spring 344 is sleeved on the outer side of the connecting shaft 343 and is arranged between the first disc 342 and the second disc 345 for generating vibration. When the conical bubble-breaking block 32 is inserted into the sewage, under the resistance of the sewage and in cooperation with the gravity of the conical bubble-breaking block 32 itself, the conical bubble-breaking block 32 can be jolted up and down, increasing the effect of breaking bubbles. Moreover, the connecting shaft 343 is arranged between the first disc 342 and the second disc 345, and the top surface of the conical bubble-breaking block 32 is fixedly connected to the second disc 345.

[0049] Specifically, when the conical bubble-breaking block 32 reciprocates up and down to break bubbles, the connecting shaft 343 and the spring 344 in the vibration generating assembly 34 can make the second disc 345 jolt up and down relative to the first disc 342, thereby increasing the number of times the conical bubble-breaking block 32 reciprocates up and down to pierce bubbles, and thus improving the efficiency of bubble treatment.

[0050] Embodiment Three:

[0051] On the basis of the second embodiment, the rotation linkage assembly 35 includes a plurality of screw rods 352 connected to the support frame 2 through hinge seats 315. The number of the screw rods 352 is the same as the number of the connecting plates 317, and they are used in one-to-one correspondence. Each screw rod 352 is respectively provided with a nut sleeve 353. The screw rod 352 and the nut sleeve 353 are threadedly connected, and its principle is similar to the principle of a bamboo dragonfly. The nut sleeve 353 can rotate while moving on the screw rod 352. A driving gear 354 is fixedly connected to the outer wall of the nut sleeve 353. The rotation linkage assembly 35 further includes a connecting seat 356 fixedly connected to the connecting plate 317. The nut sleeve 353 is rotatably connected to the connecting seat 356. Through the up-and-down reciprocating movement of the connecting plate 317, the nut sleeve 353 can move up and down along the screw rod 352 while rotating. The rotation linkage assembly 35 further includes a plurality of driven gears 355 respectively fixedly connected to the first rotating shafts 341, and the plurality of driven gears 355 are meshed with each other. The first driven gear 355 is meshed with the driving gear 354.

[0052] Specifically, when the conical bubble breaking block 32 reciprocates up and down, the connecting plate 317 can drive the connecting seat 356 to move, so that the screw sleeve 353 moves up and down relative to the screw rod 352, and can make the screw sleeve 353 rotate, the screw sleeve 353 drives the driving gear 354 to rotate, the driving gear 354 drives the first driven gear 355 closest to it to rotate, so that multiple driven gears 355 rotate at the same time, and the driven gear 355 drives the corresponding connected No. 1 rotating shaft 341 to rotate, and when the conical bubble breaking block 32 moves upward, the screw sleeve 353 can rotate in the opposite direction, and then the multiple conical bubble breaking blocks 32 also rotate in the opposite direction, which greatly improves the efficiency of breaking up the powder and powdered medicine, and then the conical bubble breaking block 32 drives the breaking blades 33 to rotate to break up the powdered medicine on the surface of the sewage, fully contact and react with the sewage, improve the utilization rate of the medicine, and thus reduce the reaction time with the sewage.

[0053] Embodiment 4:

[0054] On the basis of the third embodiment, an oil collection tank 8 is provided on the side of the box body 1 away from the dosing port 13 for storing the squeezed and separated oil, and an adsorption and oil removal mechanism 4 is provided on the oil collection tank 8, including an extrusion component 41 and a second rotating shaft 43 provided on the extrusion component 41, and an oil-absorbing sponge 42 is provided on the second rotating shaft 43 for adsorbing the oil on the surface of the sewage, and the extrusion component 41 includes a support seat 411 fixedly connected to the side wall of the oil collection tank 8, and a plurality of oil-absorbing sponges 42 arranged in two rows are rotatably connected to the support seat 411. A pressure roller 412 is arranged. When the oil-absorbing sponge 42 passes between two rows of pressure rollers 412, due to the material of the oil-absorbing sponge 42, it can be squeezed by the pressure roller 412, so that the oil dirt drips into the inside of the oil dirt collecting tank 8; the support seat 411 is also provided with a magnetic slide rail 413, and the magnetic slide rail 413 is provided with a magnetic slider 414 used in conjunction with it. It should be noted that the magnetic slider 414 can slide along the magnetic slide rail 413 to facilitate the delivery of the oil-absorbing sponge 42 to the squeezing area, and the second rotating shaft 43 is fixedly connected to the magnetic slider 414.

[0055] Specifically, the cooperation of the magnetic slide rail 413 and the magnetic slider 414 drives the second rotating shaft 43 to slide along the track of the magnetic slide rail 413, so that the oil-absorbing sponge 42 of Baohe leaves the surface of the sewage. When it reaches between the two rows of pressing shafts 412, it can be pressurized by the pressing shafts 412 to squeeze out the adsorbed oil and flow into the oil collection tank 8. After being left for a certain period of time, it moves to the initial position again through the cooperation of the magnetic slide rail 413 and the magnetic slider 414 to collect oil again, thereby removing the dirty oil on the surface of the sewage and can be recycled many times.

[0056] Embodiment five:

[0057] Based on the fourth embodiment, the oil adsorption and removal mechanism 4 further includes a rotary adsorption assembly 45;

[0058] The rotary adsorption assembly 45 includes an electric push rod 452 arranged on the side wall of the box body 1 through a fixed block 451. The output end of the electric push rod 452 is fixedly connected with a transmission block 453. A rack 454 is fixedly connected to the transmission block 453. A transmission gear 44 matching with the rack 454 is arranged on the second rotating shaft 43. Here, it should be noted that the rack 454 and the transmission gear 44 are initially separated, and the rack 454 and the transmission gear 44 are meshed. Only when the magnetic slider 414 is at the bottom end of the magnetic slide rail 413, can the movement of the rack 454 be used to push the transmission gear 44 to rotate.

[0059] Specifically, when the oil-absorbing sponge 42 adsorbs oil on the surface of the sewage, the electric push rod 452 can be started to drive the transmission block 453 to move. The transmission block 453 drives the rack 454 to push the transmission gear 44 to rotate, so that the second rotating shaft 43 drives the oil-absorbing sponge 42 to rotate and adsorb oil, realizing that the oil is evenly absorbed on each surface of the oil-absorbing sponge 42, improving the amount of oil adsorbed per time, and avoiding the problem that the oil accumulates on one side of the oil-absorbing sponge 42, resulting in the decline of the oil adsorption capacity due to the too-fast saturation of the oil-absorbing sponge 42.

[0060] The above embodiments are only used to illustrate the technical method of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A sewage treatment tank, comprising a tank body (1), characterized in that: The box body (1) is provided with a support frame (2), and the support frame (2) is provided with a bubble breaking and medicine dispersing mechanism (3); The bubble breaking and medicine dispersing mechanism (3) comprises a conical bubble breaking block (32) for breaking bubbles on the sewage surface, and an up-and-down reciprocating driving component (31) for driving the conical bubble breaking block (32) to reciprocate up and down and insert into the sewage surface. A rotating linkage component (35) is arranged above the conical bubble breaking block (32), and a dispersing blade (33) is arranged on the side wall of the conical bubble breaking block (32). The rotating linkage component (35) drives the dispersing blade (33) on the conical bubble breaking block (32) to rotate and disperse the powdered medicine accumulated on the sewage surface.

2. A sewage treatment tank according to claim 1, characterized in that: The up-and-down reciprocating drive assembly (31) comprises a fixed seat (311) fixedly arranged on the support frame (2), the fixed seat (311) being rotatably connected to a transmission shaft, the transmission shaft being fixedly connected to a first connecting rod (313) arranged in a linear array, and the first connecting rod (313) being rotatably connected to an end thereof away from the transmission shaft to a second connecting rod (314); The up and down reciprocating drive assembly (31) also includes a plurality of sliding shafts (316) slidably arranged on the support frame (2), the upper end of each sliding shaft (316) is fixedly connected to a hinge seat (315), and the hinge seat (315) is rotatably connected to the corresponding No. 2 connecting rod (314) directly above, and the lower end of the hinge seat (315) is fixedly connected to a connecting plate (317).

3. A sewage treatment tank according to claim 2, characterized in that: A vibration generating component (34) is arranged below the up and down reciprocating driving component (31); The invention comprises a first rotating shaft (341) rotatably connected to the bottom surface of the connecting plate (317), a first disc (342) being fixedly connected to the lower end of the first rotating shaft (341), a connecting shaft (343) being slidably connected to the first disc (342), a second disc (345) being fixedly connected to the lower end of the connecting shaft (343), and a spring (344) arranged between the first disc (342) and the second disc (345) being sleeved on the outer side of the connecting shaft (343); The top surface of the conical bubble breaking block (32) is fixedly connected to the second disc (345).

4. A sewage treatment tank according to claim 2, characterized in that: The rotary linkage assembly (35) comprises a plurality of screw rods (352) connected to the support frame (2) via a hinge seat (315), each of the screw rods (352) being provided with a screw sleeve (353), and a driving gear (354) being fixedly connected to the outer wall of the screw sleeve (353); The rotary linkage assembly (35) further comprises a connection seat (356) fixedly connected to the connection plate (317), and the screw sleeve (353) is rotatably connected to the connection seat (356); The rotary linkage assembly (35) further comprises a plurality of driven gears (355) respectively fixedly connected to the first rotating shaft (341), and the plurality of driven gears (355) are meshingly connected to each other, and the first driven gear (355) is meshingly connected to the driving gear (354).

5. A sewage treatment tank according to claim 1, characterized in that: The box body (1) is provided with a medicine adding port (13) for adding powdered medicine. The box body (1) is also provided with a plurality of fan assemblies (5), and the fan assemblies (5) are arranged below the medicine adding port (13).

6. A sewage treatment tank according to claim 5, characterized in that: An oil collection tank (8) is provided on the side of the box body (1) away from the drug adding port (13) for storing the oil separated by squeezing, and an adsorption oil removal mechanism (4) is provided on the oil collection tank (8); It comprises an extrusion component (41) and a second rotating shaft (43) arranged on the extrusion component (41), wherein the second rotating shaft (43) is provided with an oil-absorbing sponge (42) for absorbing oil stains on the surface of sewage.

7. A sewage treatment tank according to claim 6, characterized in that: The extrusion assembly (41) comprises a support seat (411) fixedly connected to the side wall of the oil collection tank (8), and a plurality of pressing shafts (412) arranged side by side in two rows are rotatably connected to the support seat (411); The support seat (411) is also provided with a magnetic slide rail (413), and the magnetic slide rail (413) is provided with a magnetic slider (414) used in conjunction with the magnetic slide rail; The second rotating shaft (43) is fixedly connected to the magnetic slider (414).

8. A sewage treatment tank according to claim 6, characterized in that: The adsorption and oil removal mechanism (4) further comprises a rotating adsorption component (45); The rotary adsorption assembly (45) comprises an electric push rod (452) arranged on the side wall of the box body (1) through a fixed block (451), the output end of the electric push rod (452) is fixedly connected to a transmission block (453), and the transmission block (453) is fixedly connected to a rack (454); The second rotating shaft (43) is provided with a transmission gear (44) used in conjunction with the rack (454).

9. A sewage treatment tank according to claim 1, characterized in that: An air delivery pipe (6) is arranged on the inner bottom wall of the box body (1), and a plurality of aeration nozzles (7) are arranged on the air delivery pipe (6).

10. A sewage treatment tank according to claim 9, characterized in that: The box body (1) is provided with a sewage inlet (11) and an aeration inlet (12), and the aeration inlet (12) is connected to the air delivery pipe (6).

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