A sewage treatment tank

Abstract

The present invention discloses a sewage treatment tank, which relates to the technical field of sewage treatment and includes a tank body, a support frame provided on the tank body, and a bubble-breaking and medicine-dispersing mechanism provided on the support frame. The bubble-breaking and medicine-dispersing mechanism includes a conical bubble-breaking block for breaking bubbles on the surface of the sewage, and an up-and-down reciprocating drive assembly for driving the conical bubble-breaking block to reciprocate up and down into the sewage surface. A rotary linkage assembly is provided above the conical bubble-breaking block, and dispersing blades are provided on the side walls of the conical bubble-breaking block. The rotary linkage assembly drives the dispersing blades on the conical bubble-breaking block to rotate and disperse powdered medicine accumulated on the sewage surface. In the present invention, the conical bubble-breaking block capable of up-and-down reciprocating motion achieves efficient dispersal of bubbles on the sewage surface, solves the problem of residual oil and dirt in the bubbles, and thus significantly improves sewage treatment efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, in particular to a sewage treatment box. Background Art

[0002] When treating domestic sewage, chemicals are added to the sedimentation tank to speed up the sedimentation rate and the separation of oil and water, and to adsorb smaller particles, which is beneficial to the filtration effect of sewage. However, the existing chemicals directly add powdered flocculants during the addition process. Iron and aluminum flocculants dissolve slowly in water, resulting in poor flocculant use effect and affecting filtration and sedimentation.

[0003] In the field of wastewater treatment, traditional treatment methods often face numerous challenges. Oil and dirt residues trapped in bubbles, localized excessive aggregation and clumping of reagents, low treatment efficiency, and incomplete oil removal have always been key factors limiting wastewater treatment effectiveness.

[0004] Traditional sewage treatment equipment usually lacks an efficient bubble breaking mechanism, which makes it difficult to completely separate the oil and dirt in the bubbles. This not only affects the purification quality of sewage, but also increases the difficulty of subsequent treatment. At the same time, the method of adding chemicals is often insufficient. The chemicals are prone to excessive local aggregation and formation of agglomerates, which reduces the utilization rate of the chemicals and prolongs the sewage treatment cycle. Summary of the Invention

[0005] In order to solve the problems raised by the above background technology, the present invention proposes a sewage treatment tank.

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

[0007] The bubble breaking and medicine dispersing mechanism includes a conical bubble breaking block for breaking bubbles on the sewage surface, and an up and down reciprocating driving component for driving the conical bubble breaking block to be inserted up and down into the sewage surface. A rotating linkage component is provided above the conical bubble breaking block, and breaking blades are provided on the side walls of the conical bubble breaking block. The rotating linkage component drives the breaking blades on the conical bubble breaking block to rotate and break up the powdered medicine gathered on the sewage surface.

[0008] As a further preferred embodiment of the present technical solution, the up and down reciprocating drive assembly includes a fixed seat fixedly arranged on the support frame, the fixed seat is rotatably connected to a transmission shaft, the transmission shaft is fixedly connected to a No. 1 connecting rod arranged in a linear array, and the No. 1 connecting rod is rotatably connected to an end away from the transmission shaft with a No. 2 connecting rod;

[0009] The up and down reciprocating drive assembly also includes a plurality of sliding shafts slidably arranged on the support frame, the upper end of each sliding shaft is fixedly connected to a hinge seat, and the hinge seat is rotatably connected to the corresponding No. 2 connecting rod directly above, and the lower end of the sliding shaft is fixedly connected to a connecting plate.

[0010] As a further preferred embodiment of the present technical solution: a vibration generating assembly is provided below the up and down reciprocating drive assembly;

[0011] The first rotating shaft is rotatably connected to the bottom surface of the connecting plate, the lower end of the first rotating shaft is fixedly connected to the first disc, the first disc is slidably connected to the connecting shaft, the lower end of the connecting shaft is fixedly connected to the second disc, and the outer side of the connecting shaft is provided with a spring arranged between the first disc and the second disc;

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

[0013] As a further preferred embodiment of the present technical solution: the rotary linkage assembly includes a plurality of screws connected to the support frame through an articulated seat, each of the screws is provided with a screw sleeve, and a driving gear is fixedly connected to the outer wall of the screw sleeve;

[0014] The rotary 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 meshedly connected with each other, and the first driven gear is meshedly connected with the driving gear.

[0016] As a further preferred embodiment of the present technical solution: a drug adding port is provided on the box body for adding powdered medicine, and a plurality of fan assemblies are also provided on the box body, and the fan assemblies are arranged below the drug adding port.

[0017] As a further preferred embodiment of the present technical solution: an oil collecting tank is provided on the side of the box body away from the dosing port for storing the oil separated by squeezing, and an adsorption oil removal mechanism is provided on the oil collecting tank;

[0018] The utility model comprises an extrusion component and a second rotating shaft arranged on the extrusion component. The second rotating shaft is provided with an oil-absorbing sponge for absorbing oil stains on the surface of sewage.

[0019] As a further preferred embodiment of the present technical solution: the extrusion assembly includes a support base fixedly connected to the side wall of the oil collection tank, and a plurality of pressing shafts arranged in two rows and parallel to each other are rotatably connected to the support base;

[0020] The support seat is also provided with a magnetic slide rail, and the magnetic slide rail is provided with a magnetic slider used in conjunction with the magnetic slide rail;

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

[0022] As a further preferred embodiment of the present technical solution: the adsorption and oil removal mechanism further includes a rotating adsorption component;

[0023] The rotary adsorption assembly 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 to a transmission block, and the transmission block is fixedly connected to a rack;

[0024] The second rotating shaft is provided with a transmission gear matched with the rack.

[0025] As a further preferred embodiment of the present technical solution: an air supply pipe is provided on the inner bottom wall of the box body, and a plurality of aeration nozzles are provided on the air supply pipe.

[0026] As a further preferred embodiment of the present technical solution: a sewage inlet and an aeration inlet are provided on the box body, and the aeration inlet is connected to the air pipe.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. In the present invention, the conical bubble breaking block that can reciprocate up and down is used to achieve efficient breaking of bubbles on the surface of sewage, thereby solving the problem of residual oil and dirt in the bubbles, thereby significantly improving the sewage treatment efficiency.

[0029] 2. In the present invention, during the up and down movement of the conical bubble-breaking block, the screw and the screw sleeve are linked to each other, so that the conical bubble-breaking block drives the breaking blades thereon to effectively disperse the accumulated powdered medicine, thereby avoiding the local excessive aggregation and agglomeration of the medicine. This not only improves the utilization rate of the medicine, but also ensures that the medicine and sewage can be more fully mixed and reacted, thereby shortening the sewage treatment cycle.

[0030] 3. In the present invention, the vibration generating assembly is provided 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 bubbles, thereby improving the efficiency of bubble treatment.

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

[0032] 5. In the present invention, during the oil collection process, the transmission gear is driven to rotate by the rack, so that the oil-absorbing sponge can rotate evenly when absorbing the oil, avoiding the problem of rapid saturation caused by the accumulation of oil on one side, increasing the amount of oil adsorbed in a single time, and thus enhancing the overall oil removal ability. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0034] Figure 2 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 ;

[0035] Figure 3 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 ;

[0036] Figure 4 for Figure 1 A in the middle is an enlarged schematic diagram;

[0037] Figure 5 for Figure 3 The enlarged schematic diagram of point B in the middle;

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

[0039] Figure 7 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 3 .

[0040] Legend: 1. Box; 11. Sewage inlet; 12. Aeration inlet; 13. Dosing port; 2. Support frame; 3. Bubble breaking and drug dispersing mechanism; 31. Up and down reciprocating drive assembly; 311. Fixed seat; 312. Drive motor; 313. Connecting rod No. 1; 314. Connecting rod No. 2; 315. Articulated seat; 316. Sliding shaft; 317. Connecting plate; 32. Conical bubble breaking block; 33. Dispersing blades; 34. Vibration generating assembly; 341. Rotating shaft No. 1; 342. Disc No. 1; 343. Connecting shaft; 344. Spring; 345. Disc No. 2; 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, pressure shaft; 413, magnetic slide rail; 414, magnetic slider; 42, oil-absorbing sponge; 43, No. 2 rotating shaft; 44, transmission gear; 45, rotary adsorption assembly; 451, fixed block; 452, electric push rod; 453, transmission block; 454, rack; 5, fan assembly; 6, air supply pipe; 7, aeration nozzle; 8, oil collection tank. DETAILED DESCRIPTION

[0041] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] Example 1:

[0043] See also Figure 1-Figure 7 The present application provides a sewage treatment box, including a box body 1, on which a support frame 2 is provided for supporting and fixing. A bubble-breaking and medicine-dispersing mechanism 3 is provided on the support frame 2; it is used to puncture bubbles on the surface of the sewage, discharge the oil and dirt remaining inside the bubbles, and break up the powdered medicine floating on the surface of the sewage, reducing the problem of powdered medicine agglomeration. The bubble-breaking and medicine-dispersing mechanism 3 includes a conical bubble-breaking block 32 for breaking bubbles on the surface of the sewage. The shape of the block is conical, and the sharp part of the lower end first contacts the surface of the sewage, which can better puncture the bubbles. On the other hand, its top surface is relatively large and its bottom end is relatively sharp, which can reduce the influence of the resistance of sewage during the insertion process, and the up and down reciprocating driving component 31 for driving the conical bubble breaking block 32 to reciprocate and insert into the sewage surface. A rotating linkage component 35 is provided above the conical bubble breaking block 32, and a breaking blade 33 is provided on the side wall of the conical bubble breaking block 32. The breaking blade 33 is 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 gathered pharmaceutical powder. The rotating linkage component 35 drives the conical bubble breaking block 32 to reciprocate and insert into the sewage surface. The breaking blades 33 on the bubble breaking block 32 rotate to break up the powdered medicine gathered on the surface of the sewage. The up and down reciprocating drive assembly 31 includes a fixed seat 311 fixedly set on the support frame 2, and the fixed seat 311 is rotatably connected to a transmission shaft, which is driven by a drive motor 312, and the drive motor 312 is fixedly connected to the fixed seat 311. A No. 1 connecting rod 313 arranged in a linear array is fixedly connected to the transmission shaft, and the No. 1 connecting rod 313 is rotatably connected to the end away from the transmission shaft by a No. 2 connecting rod 314. The up and down reciprocating drive assembly 31 also includes a sliding seat 311 set on the support frame 2. There are multiple sliding shafts 316 on the support frame 2, and the number of sliding shafts 316 is the same as the number of No. 2 connecting rod 314, and they are arranged one by one directly below the No. 2 connecting rod 314. Corresponding sliding hole grooves are provided on the support frame 2 for them to slide, which plays a role of limiting guide. 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 it. The lower end of the hinge seat 315 is fixedly connected to a connecting plate 317, which is used to integrate multiple conical bubble breaking blocks 32 together to facilitate operation.

[0044] Specifically, the drive motor 312 drives the transmission shaft to rotate, and the transmission shaft drives the multiple No. 1 connecting rods 313 above to rotate, and then through cooperation with the No. 2 connecting rod 314, the sliding shaft 316 is made to reciprocate up and down, and the sliding shaft 316 drives the connecting plate 317 below to reciprocate up and down. The connecting plate 317 is equipped with a vibration generating component 34 and a conical bubble breaking block 32, so it can drive the conical bubble breaking block 32 thereon to reciprocate up and down to puncture the bubbles floating on the surface of the sewage due to aeration and oil pollution, and then puncture the floating objects and oil pollution attached to the bubbles and mix them into the sewage, so as to facilitate sufficient contact reaction with the powdered agent and improve the sewage treatment capacity. It should be noted here that the powdered agent is a mixed agent that can separate the sediment of oil pollution in the sewage.

[0045] In this embodiment, an air 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 pipe 6, and the sewage is caused to roll and flow through aeration. A sewage inlet 11 and an aeration inlet 12 are provided on the box body 1. The sewage inlet 11 and the aeration inlet 12 are both pipes with valves, and sewage can be pumped into the interior of the box body 1 through an external sewage pump. The aeration inlet 12 is connected to the air pipe 6 and is connected to an external air pump to achieve the pumping of gas.

[0046] In this embodiment, the box body 1 is provided with a dosing port 13 for adding powdered medicine. The box body 1 is also provided with multiple fan assemblies 5, and the fan assembly 5 is arranged below the dosing port 13 to facilitate blowing the oil pollution to the oil pollution collection area. It can also enable the powdered medicine to be blown into the sewage to be fully blown away to avoid local accumulation near the dosing port 13.

[0047] Example 2:

[0048] On the basis of embodiment 1, a vibration generating assembly 34 is provided below the up and down reciprocating drive assembly 31, including a No. 1 rotating shaft 341 rotatably connected to the bottom surface of the connecting plate 317. It should be noted that a plurality of No. 1 rotating shafts 341 are provided on the bottom surface of each connecting plate 317, and the plurality of No. 1 rotating shafts 341 are arranged in a linear array, and the connecting plate 317 itself is also provided with a plurality of No. 1 rotating shafts 341, which are arranged in a linear array above the box body 1, so that most of them are covered above the box body 1, which can improve the efficiency of breaking bubbles and breaking up powdered medicines. The lower end of the No. 1 rotating shaft 341 is fixedly connected to the No. 1 disc 342, which plays a connecting role. The first disc 342 is slidably connected to a connecting shaft 343, and the lower end of the connecting shaft 343 is fixedly connected to the second disc 345, and the outer side of the connecting shaft 343 is provided with a spring 344 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 action of the resistance of the sewage and the gravity of the conical bubble breaking block 32 itself, the conical bubble breaking block 32 can shake up and down, thereby increasing the effect of breaking bubbles, and 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 moves back and forth up and down to break the bubbles, the connecting shaft 343 and the spring 344 in the vibration generating assembly 34 can make the second disc 345 vibrate up and down relative to the first disc 342, thereby increasing the number of times the conical bubble-breaking block 32 moves up and down to break the bubbles, thereby improving the efficiency of bubble treatment.

[0050] Example 3:

[0051] On the basis of the second embodiment, the rotary linkage assembly 35 includes a plurality of screws 352 connected to the support frame 2 through an articulated seat 315. The number of the screws 352 is the same as the number of the connecting plates 317, and they are used in a one-to-one correspondence. Each of the screws 352 is provided with a screw sleeve 353. The screws 352 and the screw sleeves 353 are connected by threads, and the principle is similar to the bamboo dragonfly principle. The screw sleeve 353 can rotate while moving on the screw 352. The outer wall of the screw sleeve 353 is fixedly connected to the driving gear 35 4. The rotary linkage assembly 35 also includes a connecting seat 356 fixedly connected to the connecting plate 317, and the screw sleeve 353 is rotatably connected to the connecting seat 356. Through the up and down reciprocating movement of the connecting plate 317, the screw sleeve 353 can move up and down along the screw rod 352 while rotating. The rotary linkage assembly 35 also includes a plurality of driven gears 355 respectively fixedly connected to the No. 1 rotating shaft 341, and the plurality of driven gears 355 are meshedly connected to each other, and the first driven gear 355 is meshedly connected to 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, thereby causing the screw sleeve 353 to move up and down relative to the screw rod 352, and can cause the screw sleeve 353 to rotate, and the screw sleeve 353 drives the driving gear 354 to rotate, and the driving gear 354 drives the first driven gear 355 closest to it to rotate, thereby causing multiple driven gears 355 to 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, it can cause the screw sleeve 353 to rotate in the opposite direction, and then cause multiple conical bubble breaking blocks 32 to rotate in the opposite direction, greatly improving the efficiency of breaking up powder and powdered medicine, and then realizing that 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 contacting and reacting with the sewage, improving the utilization rate of the medicine, and thereby reducing the reaction time with the sewage.

[0053] Example 4:

[0054] On the basis of Example 3, 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. The oil collection tank 8 is provided with an adsorption and oil removal mechanism 4, including an extrusion component 41 and a second rotating shaft 43 provided on the extrusion component 41. The second rotating shaft 43 is provided with an oil-absorbing sponge 42 for adsorbing the oil on the surface of the sewage. The extrusion component 41 includes a support seat 411 fixedly connected to the side wall of the oil collection tank 8, and the support seat 411 is rotatably connected to a plurality of two rows of parallel columns. The pressure shaft 412 is arranged. When the oil-absorbing sponge 42 passes between the two rows of pressure shafts 412, due to the material of the oil-absorbing sponge 42, it can be squeezed by the pressure shaft 412, so that the oil and dirt drip into the inside of the oil collection 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 here 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, thereby causing the saturated oil-absorbing sponge 42 to leave 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, so that the adsorbed oil is squeezed out and flows 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 being able to be recycled many times.

[0056] Embodiment 5:

[0057] On the basis of the fourth embodiment, the adsorption and oil removal mechanism 4 further includes a rotating adsorption component 45;

[0058] The rotating adsorption assembly 45 includes an electric push rod 452 arranged on the side wall of the box body 1 through a fixed block 451, and the output end of the electric push rod 452 is fixedly connected to a transmission block 453, and a rack 454 is fixedly connected to the transmission block 453. A transmission gear 44 used in conjunction with the rack 454 is provided on the second rotating shaft 43. 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 transmission gear 44 be pushed to rotate by the movement of the rack 454.

[0059] Specifically, when the oil-absorbing sponge 42 absorbs oil on the surface of sewage, the electric push rod 452 can be started to drive the transmission block 453 to move, and 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 absorb the oil, so that the oil is evenly absorbed on all surfaces of the oil-absorbing sponge 42, which can increase the amount of oil absorbed in a single time, and avoid the problem of oil accumulation on one side of the oil-absorbing sponge 42, which leads to too fast saturation of the oil-absorbing sponge 42 and a decrease in the oil adsorption capacity.

[0060] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents 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: A support frame (2) is provided on the box body (1), and a bubble-breaking and medicine-dispersing mechanism (3) is provided on the support frame (2); The foam breaking and medicine dispersing mechanism (3) comprises a conical foam breaking block (32) for breaking bubbles on the sewage surface, and an up-and-down reciprocating driving assembly (31) for driving the conical foam breaking block (32) to reciprocate up and down and insert into the sewage surface. A rotating linkage assembly (35) is provided above the conical foam breaking block (32), and a dispersing blade (33) is provided on the side wall of the conical foam breaking block (32). The rotating linkage assembly (35) drives the dispersing blade (33) on the conical foam breaking block (32) to rotate and disperse the powdered medicine accumulated on the sewage surface. The up-and-down reciprocating drive assembly (31) comprises a fixed seat (311) fixedly arranged on the support frame (2); a transmission shaft is rotatably connected to the fixed seat (311); a first connecting rod (313) arranged in a linear array is fixedly connected to the transmission shaft; and a second connecting rod (314) is rotatably connected to the end of the first connecting rod (313) away from the transmission shaft. The up-and-down reciprocating drive assembly (31) further comprises a plurality of sliding shafts (316) slidably arranged on the support frame (2), the upper end of each sliding shaft (316) being fixedly connected to a hinge seat (315), and the hinge seat (315) being rotatably connected to the corresponding No. 2 connecting rod (314) directly above, the lower end of the sliding shaft (316) being fixedly connected to a connecting plate (317), and a conical bubble breaking block (32) being mounted on the connecting plate (317).

2. A sewage treatment tank according to claim 1, characterized in that: A vibration generating assembly (34) is provided below the up and down reciprocating driving assembly (31); The invention comprises a first rotating shaft (341) rotatably connected to the bottom surface of the connecting plate (317) and arranged in a linear array, wherein the lower end of the first rotating shaft (341) is fixedly connected to a first circular disc (342), a connecting shaft (343) is slidably connected to the first circular disc (342), the lower end of the connecting shaft (343) is fixedly connected to a second circular disc (345), and a spring (344) arranged between the first circular disc (342) and the second circular disc (345) is 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).

3. A sewage treatment tank according to claim 1, 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 includes a connecting seat (356) fixedly connected to the connecting plate (317), and the screw sleeve (353) is rotatably connected to the connecting seat (356); The rotary linkage assembly (35) further includes a plurality of driven gears (355) respectively fixedly connected to the first rotating shaft (341), and the plurality of driven gears (355) are meshedly connected with each other, and the first driven gear (355) is meshedly connected with the driving gear (354).

4. 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).

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

6. A sewage treatment tank according to claim 5, characterized in that: The extrusion assembly (41) includes a support base (411) fixedly connected to the side wall of the oil collection tank (8), and a plurality of pressing shafts (412) arranged in two rows are rotatably connected to the support base (411); The support seat (411) is further 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 (413); The second rotating shaft (43) is fixedly connected to the magnetic slider (414).

7. A sewage treatment tank according to claim 5, characterized in that: The adsorption and oil removal mechanism (4) further includes a rotary 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).

8. The sewage treatment tank according to claim 1, characterized in that: 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).

9. A sewage treatment tank according to claim 8, 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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