Polypropylene production sewage purification treatment equipment based on biological decomposition

Abstract

The invention discloses polypropylene production sewage purification treatment equipment based on biological decomposition, and belongs to the technical field of sewage treatment devices.The polypropylene production sewage purification treatment equipment comprises a degradation pool and an aeration pipe arranged in the degradation pool, a plurality of aeration heads are installed on the aeration pipe, and a detection assembly is arranged at one end in the degradation pool; the detection assembly comprises a square frame and a connecting plate arranged below the square frame, the connecting plate is communicated with the square frame through a vertical pipe, and the square frame slides between the guide rails on the two sides of the top end of the degradation pool; the driving assembly can drive the detection assembly to move in the length direction of the degradation pool, so that the aeration head on the aeration pipe is detected, and when the detection assembly detects that the aeration head breaks down and cannot generate bubbles, the driving assembly can promote the detection assembly to supplement gas at the damaged position of the aeration head, so that the aeration head is prevented from being damaged. Therefore, uniform distribution of gas in the degradation tank is facilitated, and sufficient decomposition of organic matters by microorganisms is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment devices, and in particular to a polypropylene production sewage purification treatment device based on biodegradation. Background Art

[0002] Generally, the main pollutants in urban sewage are easily degradable organic matter, so most urban sewage treatment plants use aerobic biological treatment methods.

[0003] Chinese invention patent CN119349783B discloses a municipal sewage treatment device, which drives the air injection pipe to move by the movement of a movable seat; the movement of the movable seat drives the spur gear to move along the outer wall of the tooth plate, thereby driving the spur gear to rotate, and the rotation of the spur gear drives the air injection pipe to rotate; the oxygen in the air intake pipe moves into the cross bar, and when the air intake moves into the movable seat, the C-shaped block moves to remove the obstruction of the air intake, and the oxygen is ejected through the jet port, so that the jet port sprays oxygen into the degradation tank.

[0004] The above-mentioned device promotes uniform distribution of oxygen by driving the aeration mechanism to move horizontally in the degradation tank, and provides gas to the aeration mechanism through the cross bar. However, in actual use, the cross bar is prone to leakage, thereby affecting the flow of air. In addition, when the aeration port on the rotating disk is blocked or aged, it will affect the generation of bubbles. The above-mentioned structure is difficult to deal with such problems.

[0005] Therefore, it is necessary to provide a polypropylene production wastewater purification and treatment equipment based on biodegradation to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a polypropylene production wastewater purification and treatment equipment based on biodegradation, so as to solve the problem that the existing device proposed in the above background technology promotes uniform distribution of oxygen by driving the aeration mechanism to move horizontally in the degradation tank, but when the aeration port on the rotating disk is blocked or aged, it will affect the generation of bubbles.

[0007] Based on the above ideas, the present invention provides the following technical solutions: a polypropylene production wastewater purification and treatment device based on biodegradation, comprising a degradation tank and an aeration pipe arranged in the degradation tank, wherein a plurality of aeration heads are installed on the aeration pipe, and a detection component is provided at one end of the degradation tank; The detection assembly includes a square frame and a connecting plate arranged below the square frame. The connecting plate and the square frame are connected by a vertical pipe, and the square frame slides between the guide rails on both sides of the top of the degradation tank. A detection unit is fixedly installed on the bottom of the connecting plate. When the square frame is driven to move by the driving assembly above the degradation tank, the bubbles at the aeration head can be detected by the detection unit. When the detection unit detects that the aeration head does not generate bubbles, the detection assembly equipped with this detection unit will be locked with the guide rail, so that bubbles can be exposed through the aeration holes on the connecting plate during the movement of the driving assembly.

[0008] As a further solution of the present invention: limit plates are fixedly provided at both sides of the square frame, the limit plates are slidably matched with the guide rails, a secondary electromagnet is provided on the side of the limit plate away from the guide rails, the detection unit is electrically connected to the secondary electromagnet, and a pressure plate is provided between the secondary electromagnet and the limit plate, the pressure plate is made of iron and elastically matched with the secondary electromagnet, a positioning block is integrally formed on the pressure plate, a plurality of positioning holes are provided on the guide rails, and the plurality of positioning holes are arranged one-to-one corresponding to the aeration heads, and when the detection unit detects that no bubbles are generated above the aeration head, the detection unit can control the secondary electromagnet to be in a de-energized state, so that the positioning block pops out and cooperates with the positioning hole.

[0009] As a further solution of the present invention: a sealing block is slidably provided in the square frame, a lifting column is fixedly provided on the top surface of the sealing block, and a rotating drum is sleeved on the outer side of the lifting column. During the rotation of the rotating drum, the lifting column can be driven to reciprocate in the vertical direction.

[0010] As a further solution of the present invention: the driving assembly includes a chain arranged above the degradation tank, a rotating sleeve on the outer side of the rotating drum is provided with a ring, a fixed sleeve on the outer side of the ring is provided with a sprocket engaged with the chain, a plurality of slots are evenly opened on the inner wall of the ring, and a card block that cooperates with the slot is elastically connected to the wall of the rotating drum, a main electromagnet is provided at the top position of the rotating drum, and a magnetic plate is provided at the lower position of the main electromagnet. When the main electromagnet is in an energized state, the main electromagnet has the same magnetic pole on the opposite side of the magnetic plate, and a pressure block is provided at the end of the block away from the ring, and the side of the pressure block close to the card block is an inclined surface, and the pressure block and the magnetic plate are fixedly connected by a connecting rod.

[0011] As a further solution of the present invention: the aeration holes are distributed at both sides of the top of the connecting plate.

[0012] As a further solution of the present invention: a support ring is provided on the outer side of the rotating drum through a tapered roller bearing sleeve, and the support ring is fixed inside the square frame through a support rod.

[0013] As a further solution of the present invention: a pressure rod is elastically connected to the limit plate through a tension spring, a slot matching the pressure rod is provided on the guide rail, and one end of the pressure rod inserted into the slot is a spherical structure.

[0014] As a further solution of the present invention: motors for driving the chain to rotate are arranged at both ends of the degradation tank.

[0015] As a further solution of the present invention: an annular limiting groove is provided on the outer peripheral wall of the lifting column, and the limiting groove is arranged obliquely, and a protrusion that slides with the limiting groove is fixedly provided on the inner wall of the rotating drum.

[0016] Compared with the prior art, the beneficial effects of the present invention are: this device can drive the detection component to move along the length direction of the degradation tank through the driving component, so as to detect the aeration head on the aeration pipe, and when the detection component detects that the aeration head is faulty and cannot generate bubbles, the driving component can also prompt the detection component to replenish gas at the damaged position of the aeration head, which is beneficial to the uniform distribution of gas in the degradation tank and the full decomposition of organic matter by microorganisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the cooperation between the detection component and the aeration head of the present invention; Figure 4 It is a schematic diagram of the connection structure between the sprocket and the rotating drum of the present invention; Figure 5 This is a schematic diagram of the cooperation between the protrusion and the lifting column of the present invention; Figure 6 It is a schematic diagram of the internal structure of the square frame of the present invention; Figure 7 This invention Figure 4 A schematic diagram of the enlarged structure at point A; Figure 8 This invention Figure 6 A schematic diagram of the enlarged structure at point B; Figure 9 It is the positioning hole distribution diagram of the present invention; Figure 10 It is a schematic diagram of the compression rod structure of the present invention.

[0019] Figure: 1, degradation tank; 2, aeration pipe; 201, aeration head; 3, connecting pipe; 4, sprocket; 5, chain; 6, guide rail; 601, positioning hole; 602, notch; 7, rotating drum; 701, protrusion; 702, support ring; 8, connecting plate; 801, aeration hole; 802, detection unit; 9, baffle; 10, square frame; 1001, limit plate; 11, vertical pipe; 12, cover plate ; 1201, auxiliary electromagnet; 1202, pressure plate; 1203, positioning block; 13, box body; 14, collar; 1401, slot; 15, lifting column; 1501, limit slot; 16, sealing block; 17, main electromagnet; 18, magnetic plate; 19, block; 1901, bump; 20, control switch; 21, pressure block; 2101, inclined plane; 22, pressure rod; 23, diversion channel. DETAILED DESCRIPTION

[0020] like Figures 1-10 As shown, a polypropylene production wastewater purification and treatment equipment based on biodegradation includes a degradation tank 1 and an aeration pipe 2 arranged in the degradation tank 1. The aeration pipe 2 is equipped with an aeration head 201. This structure is conducive to the introduction of air into the degradation tank 1, thereby providing oxygen for the microorganisms in the degradation tank 1, which is conducive to the decomposition of organic matter in the wastewater by the microorganisms. Figure 1 As shown, a plurality of connecting pipes 3 are provided on one side of the degradation tank 1, wherein a part of the connecting pipes 3 can be connected to the aeration pipe 2, while another part of the connecting pipes 3 can be used to introduce sewage into the degradation tank 1. Of course, the degradation tank 1 is also connected with structures such as drainage pipes.

[0021] Reference Figure 1-Figure 2 As shown, the aeration heads 201 are distributed along the axial direction of the aeration pipe 2 and are provided in plurality, so as to evenly supply oxygen to the degradation tank 1. However, when a certain aeration head 201 cannot discharge gas due to blockage or aging of components, the air in the degradation tank 1 may be unevenly distributed. Therefore, in this solution, a detection component is provided at one end inside the degradation tank 1. The detection component is provided in at least one group, and the driving component at the top of the degradation tank 1 can drive the detection component to move along the length direction of the degradation tank 1. When the detection component detects that a certain aeration head 201 is damaged or blocked, the detection component can be retained at a position above the aeration head 201, and the driving component can drive the detection component to aerate during the movement, thereby maximizing the uniform distribution of oxygen in the degradation tank 1.

[0022] Reference 1- Figure 8As shown, the detection component includes a square frame 10 and a connecting plate 8 arranged below the square frame 10. The interior of the connecting plate 8 is a cavity structure, and a vertical pipe 11 is fixed between the connecting plate 8 and the square frame 10. The two ends of the vertical pipe 11 are respectively connected to the connecting plate 8 and the square frame 10. A detection unit 802 is fixedly installed at the bottom of the connecting plate 8. The detection unit 802 can be an ultrasonic bubble sensor. When the square frame 10 is driven to move by the driving assembly, the bubbles at the aeration head 201 can be detected by the ultrasonic bubble sensor.

[0023] In order to ensure that the square frame 10 can move stably, this solution has guide rails 6 on both sides of the square frame 10, and the guide rails 6 are fixedly connected to the degradation tank 1 by bolts. Limiting plates 1001 are fixedly provided on both sides of the square frame 10, and the limiting plates 1001 slide in conjunction with the guide rails 6.

[0024] In order to allow the square frame 10 to stay above the damaged or blocked aeration head 201, this solution is provided with a secondary electromagnet 1201 on the side of the limit plate 1001 away from the guide rail 6, the above-mentioned detection unit 802 is electrically connected to the secondary electromagnet 1201, and a pressure plate 1202 is provided between the secondary electromagnet 1201 and the limit plate 1001. Figure 7 As shown, a positioning block 1203 is integrally formed on the pressure plate 1202, and the positioning block 1203 passes through the limit plate 1001 and slides with it. The pressure plate 1202 here is made of iron and is elastically matched with the auxiliary electromagnet 1201 through a spring. Figure 1-Figure 2 、 Figure 7 As shown, the cross-section of the guide rail 6 is an L-shaped structure, and a plurality of positioning holes 601 are evenly opened on the side of the guide rail 6 that fits the square frame 10. The plurality of positioning holes 601 are arranged in a one-to-one correspondence with the plurality of aeration heads 201. When the driving assembly drives the square frame 10 to move above the aeration head 201, the bubbles can be detected by the detection unit 802. When the detection unit 802 detects that no bubbles are generated above the aeration head 201, the auxiliary electromagnet 1201 can be controlled to be in a de-energized state through the detection unit 802, and the positioning block 1203 will also pop out. When the positioning block 1203 is aligned with the positioning hole 601, one end of the positioning block 1203 can be inserted into the positioning hole 601, thereby retaining structures such as the square frame 10 above the damaged or blocked aeration head 201.

[0025] In order to ensure that the detection assembly can achieve the aeration effect, the present solution has a sealing block 16 slidably arranged in the square frame 10. Of course, the sealing block 16 and the square frame 10 are sealed together, and a lifting column 15 is fixedly arranged on the top surface of the sealing block 16 and at the center. The outer side of the lifting column 15 is sleeved with a rotating drum 7. During the rotation of the rotating drum 7, the lifting column 15 can be driven to reciprocate in the vertical direction, so that air can be continuously sucked into the square frame 10 and discharged through the aeration holes 801 on the connecting plate 8. Specific reference Figure 5-Figure 6 As shown, an annular limiting groove 1501 is provided on the outer peripheral wall of the lifting column 15, and the limiting groove 1501 is set at an angle, and a protrusion 701 that cooperates with the limiting groove 1501 is fixedly provided on the inner wall of the rotating drum 7, so that the protrusion 701 can slide in the limiting groove 1501, and in this way, the lifting column 15 can be driven to move back and forth up and down.

[0026] The driving assembly includes a chain 5 arranged above the degradation tank 1, and a ring 14 is provided on the outer side of the drum 7 through a bearing rotation sleeve. A sprocket 4 is fixedly provided on the outer side of the ring 14 and meshes with the chain 5. In actual use, the sprocket 4 only meshes with one side of the chain 5. Figure 6-Figure 8 As shown, a plurality of slots 1401 are evenly formed on the inner wall of the collar 14, and a block 19 that matches the slots 1401 is elastically connected to the wall of the drum 7. A main electromagnet 17 is provided at the top of the drum 7, and a magnetic plate 18 is provided below the main electromagnet 17. When the main electromagnet 17 is energized, the opposite sides of the main electromagnet 17 and the magnetic plate 18 have the same magnetic poles, so that Figure 8It can be seen that a pressure block 21 is provided at one end of the card block 19 away from the collar 14, and a side of the pressure block 21 close to the card block 19 is an inclined surface 2101, and the pressure block 21 and the magnetic plate 18 are fixedly connected by a connecting rod. In the initial state, the main electromagnet 17 is in a de-energized state, so that the card block 19 and the card slot 1401 do not cooperate. At this time, the chain 5 will only drive the sprocket 4 and the collar 14 to rotate alone during rotation. When the staff controls the main electromagnet 17 to be energized, the repulsive force can squeeze the pressure block 21 downward, thereby using the inclined surface 2101 to squeeze the card block 19 outward, so that one end of the card block 19 can be inserted into the card slot 1 401, at this time, the ring 14 can drive the rotating drum 7 to rotate synchronously, but because the square frame 10 is not locked with the guide rail 6, the cooperation between the chain 5 and the sprocket 4 can pull the square frame 10 to slide along the guide rail 6. When the positioning block 1203 cooperates with the positioning hole 601 to lock the square frame 10 with the guide rail 6, the cooperation between the chain 5 and the sprocket 4 can drive the rotating drum 7 to rotate relative to the square frame 10, thereby utilizing the cooperation between the protrusion 701 and the limiting groove 1501 to drive the lifting column 15 to reciprocate in the vertical direction, which is conducive to drawing external air into the square frame 10 and finally discharging it through the aeration hole 801 on the connecting plate 8.

[0027] Reference Figure 6 As shown, a connecting guide channel 23 is provided on the lifting column 15 and the sealing block 16, and a first one-way valve (not shown in the figure) is installed in the guide channel 23, so that external gas can only flow between the sealing block 16 and the vertical pipe 11 through the first one-way valve, and a second one-way valve (not shown in the figure) is provided in the vertical pipe 11, so that the gas below the sealing block 16 can only be discharged through the second one-way valve.

[0028] Working principle: Initially, the detection component is at one end of the degradation tank 1, and the main electromagnet 17 at the detection component is in a de-energized state, so that the block 19 does not cooperate with the card slot 1401. Therefore, the chain 5 will not drive the detection component to move when it rotates. When the aeration head 201 needs to be inspected, the staff can control the main electromagnet 17 on the front group of detection components to be in an energized state, so that the block 19 on this detection component can cooperate with the card slot 1401. At this time, the chain 5 can drive the sprocket 4 to move during its rotation (due to the large friction between the sealing block 16 and the inner wall of the square frame 10, the chain 5 will not cause the rotating drum 7 to rotate during the process of cooperating with the sprocket 4, but will drive the square frame 10 and other structures to slide along the guide rail 6 through the sprocket 4). When the square frame 10 moves to a position above a certain aeration head 201, the bubbles can be detected through the detection unit 802 at the bottom of the connecting plate 8. When the aeration head 201 does not produce air due to blockage or failure, When bubbles are generated, the detection unit 802 at the bottom of the connecting plate 8 can cause the auxiliary electromagnet 1201 on this detection assembly to be in a de-energized state, so that the positioning block 1203 can pop out, and as the square frame 10 moves, one end of the positioning block 1203 can be inserted into the positioning hole 601, so that the square frame 10 can be clamped on the guide rail 6. At this time, the chain 5 can drive the sprocket 4 and the rotating drum 7 to rotate during the rotation process, thereby driving the lifting column 15 to reciprocate in the vertical direction through the cooperation between the protrusion 701 and the limit groove 1501. Specifically, when the lifting column 15 moves upward, the external gas can flow to the position below the sealing block 16 through the first one-way valve, and when the lifting column 15 moves downward, the gas below the sealing block 16 can be squeezed into the connecting plate 8 through the second one-way valve and finally discharged through the aeration hole 801, which is conducive to replenishing oxygen at the damaged or blocked aeration head 201, so that the oxygen in the degradation tank 1 can be evenly distributed.

[0029] To sum up, this device can drive the detection component to move along the length direction of the degradation tank 1 through the driving component, so as to detect the aeration head 201 on the aeration pipe 2. Moreover, when the detection component detects that the aeration head 201 has a fault and cannot generate bubbles, the driving component can also prompt the detection component to replenish gas at the damaged position of the aeration head 201, which is beneficial to the uniform distribution of gas in the degradation tank 1 and the full decomposition of organic matter by microorganisms.

[0030] like Figures 1-10As shown, motors are arranged at both ends of the degradation tank 1, and drive sprockets are installed on the output shaft of the motor, so that the chain 5 is sleeved on the two drive sprockets to drive the chain 5 to rotate. The above-mentioned chain 5 can be arranged on the guide rail 6, and in order to ensure that the chain 5 on one side can stably cooperate with the sprocket 4, a baffle 9 is fixedly provided on the top of one of the guide rails 6 in this solution, and the chain 5 on the side that cooperates with the sprocket 4 is located between the baffle 9 and the sprocket 4.

[0031] Reference Figure 3 As shown, the aeration holes 801 are distributed at the positions on both sides of the top of the connecting plate 8, and the cover plate 12 is fixedly provided at the inner position of the limiting plate 1001. Figure 3-Figure 4 、 Figure 7 As shown, the auxiliary electromagnet 1201 is fixedly installed in the cover plate 12 , and the pressing plate 1202 is slidably disposed in the cover plate 12 .

[0032] Reference Figure 4-Figure 9 As shown, a support ring 702 is provided on the outer side of the rotating drum 7 through a tapered roller bearing sleeve, and the support ring 702 is fixed to the inside of the square frame 10 through a support rod. A box body 13 is provided at the top position of the rotating drum 7, and the box body 13 is fixedly connected to the rotating drum 7 through a fixing rod. The above-mentioned main electromagnet 17 is fixedly installed at the top position inside the box body 13, and the above-mentioned connecting rod passes through the box body 13 and slides with it, and a support spring is fixedly provided between the magnetic plate 18 and the bottom surface of the box body 13. Through this structure, the magnetic plate 18 and the box body 13 are elastically matched.

[0033] In order to achieve elastic cooperation between the block 19 and the rotating drum 7, this solution has protrusions 1901 fixedly provided on the top and bottom surfaces of the block 19, and a T-shaped slide bar that cooperates with the protrusion 1901 is fixedly provided on the inner wall of the rotating drum 7. The T-shaped slide bar passes through the protrusion 1901 and slides with it, and a limiting spring is provided on the protrusion 1901 and the inner wall of the rotating drum 7, so that in the initial state, one end of the block 19 can be retracted into the rotating drum 7.

[0034] Combine Figures 1-6As shown, in order to avoid interference between multiple detection components during operation, a control switch 20 is installed on one side of the square frame 10 through a support rod. The control switch 20 is electrically connected to the auxiliary electromagnet 1201. When the control switch 20 is pressed, the auxiliary electromagnet 1201 can be in an energized state, and this control switch 20 and the detection unit 802 can be connected in parallel to the control circuit of the auxiliary electromagnet 1201. Specifically, when a group of detection components is clamped between the two guide rails 6 and the chain 5 drives another group of detection components to move at the same time, the square frame 10 at the rear will touch the control switch 2 on the front square frame 10. 0, thereby energizing the auxiliary electromagnet 1201 on the front detection component, so that one end of the positioning block 1203 can be moved out of the positioning hole 601, so that the chain 5 can drive the two detection components to move at the same time. When the positioning block 1203 on the rear detection component is aligned with the positioning hole 601, the detection component at the rear can be clamped between the two guide rails 6, and the detection component at the front position continues to move with the chain 5 until it is clamped on top of another damaged aeration head 201. In summary, in this way, multiple detection components can work simultaneously, and this device is also applicable when more than one aeration head 201 is damaged.

[0035] Reference Figure 4 、 Figure 10 As shown, a pressure rod 22 is elastically connected to the limit plate 1001 through a tension spring, and a notch 602 is provided on the guide rail 6 to match the pressure rod 22. One end of the pressure rod 22 inserted into the notch 602 is a spherical structure. When the rotating drum 7 is not locked with the collar 14, the chain 5 can stably drive the collar 14 to rotate without driving the detection assembly to move laterally during the process of meshing with the sprocket 4. When the collar 14 is locked with the rotating drum 7 so that the detection assembly can move laterally, one end of the pressure rod 22 can be moved out of the notch 602, and then combined with Figure 6 As shown, during actual use, the support ring 702 and the rotating drum 7 can also maintain stability between the rotating drum 7 and the support ring 702 through a similar structure in which the pressure rod 22 cooperates with the slot 602, so that when the square frame 10 is not locked with the guide rail 6, the detection component can be driven to move laterally through the cooperation of the chain 5 and the sprocket 4.

Claims

1. A polypropylene production wastewater purification and treatment equipment based on biodegradation, comprising a degradation tank and an aeration pipe arranged in the degradation tank, wherein the aeration pipe is equipped with multiple aeration heads, characterized in that: A detection component is provided at one end of the degradation tank; The detection assembly includes a square frame and a connecting plate arranged below the square frame. The connecting plate and the square frame are connected by a vertical pipe, and the square frame slides between the guide rails on both sides of the top of the degradation tank. A detection unit is fixedly installed on the bottom of the connecting plate. When the square frame is driven to move by the driving assembly above the degradation tank, the bubbles at the aeration head can be detected by the detection unit. When the detection unit detects that the aeration head does not generate bubbles, the detection assembly equipped with this detection unit will be locked with the guide rail, so that bubbles can be exposed through the aeration holes on the connecting plate during the movement of the driving assembly.

2. The polypropylene production wastewater purification treatment equipment based on biodegradation according to claim 1, characterized in that: Limit plates are fixedly provided at both sides of the square frame, and the limit plates are slidably fitted with the guide rails. A secondary electromagnet is provided on the side of the limit plate away from the guide rails. The detection unit is electrically connected to the secondary electromagnet, and a pressure plate is provided between the secondary electromagnet and the limit plate. The pressure plate is made of iron and elastically fits with the secondary electromagnet. A positioning block is integrally formed on the pressure plate, and a plurality of positioning holes are provided on the guide rails. The plurality of positioning holes are arranged in one-to-one correspondence with the aeration heads. When the detection unit detects that no bubbles are generated above the aeration head, the detection unit can control the secondary electromagnet to be in a de-energized state, so that the positioning block pops out and fits with the positioning hole.

3. The polypropylene production wastewater purification treatment equipment based on biodegradation according to claim 2, characterized in that: A sealing block is slidably arranged in the square frame, a lifting column is fixedly arranged on the top surface of the sealing block, and a rotating drum is sleeved on the outer side of the lifting column. During the rotation of the rotating drum, the lifting column can be driven to move back and forth in the vertical direction.

4. The polypropylene production wastewater purification treatment equipment based on biodegradation according to claim 3, characterized in that: The driving assembly includes a chain arranged above the degradation tank, a ring is provided on the outer rotating sleeve of the rotating drum, a sprocket is provided on the outer fixed sleeve of the ring which engages with the chain, a plurality of slots are evenly opened on the inner wall of the ring, and a card block which cooperates with the slot is elastically connected to the wall of the rotating drum, a main electromagnet is provided at the top position of the rotating drum, and a magnetic plate is provided at the lower position of the main electromagnet. When the main electromagnet is in an energized state, the main electromagnet has the same magnetic pole on the side opposite to the magnetic plate, a pressure block is provided on the end of the card block away from the ring, and the side of the pressure block close to the card block is an inclined surface, and the pressure block and the magnetic plate are fixedly connected by a connecting rod.

5. The polypropylene production wastewater purification treatment equipment based on biodegradation according to claim 1, characterized in that: The aeration holes are distributed at both sides of the top of the connecting plate.

6. The polypropylene production wastewater purification treatment equipment based on biodegradation according to claim 3, characterized in that: A support ring is provided on the outer side of the rotating drum through a tapered roller bearing sleeve, and the support ring is fixed inside the square frame through a support rod.

7. The polypropylene production wastewater purification treatment equipment based on biodegradation according to claim 2, characterized in that: The limit plate is elastically connected with a pressure rod via a tension spring, the guide rail is provided with a slot matched with the pressure rod, and one end of the pressure rod inserted into the slot is a spherical structure.

8. The polypropylene production wastewater purification treatment equipment based on biodegradation according to claim 4, characterized in that: Motors for driving the chains to rotate are arranged at both ends of the degradation tank.

9. The polypropylene production wastewater purification treatment equipment based on biodegradation according to claim 3, characterized in that: An annular limiting groove is provided on the outer peripheral wall of the lifting column, and the limiting groove is arranged obliquely. A protrusion that slides with the limiting groove is fixedly provided on the inner wall of the rotating drum.

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