Styrene wastewater treatment device based on biological contact oxidation

Abstract

The invention discloses a styrene wastewater treatment device based on biological contact oxidation, and relates to the technical field of wastewater treatment.The styrene wastewater treatment device comprises a treatment kettle, a transmission case is fixedly connected to the top of the treatment kettle, an injection pipe is arranged at the upper end of the treatment kettle, an output pipe is arranged at the bottom of the treatment kettle, and a valve is arranged in the output pipe; a stirring assembly is arranged in the treatment kettle and is used for stirring wastewater. The driving assembly provides power to the aeration assembly and the stirring assembly at the same time, the aeration assembly is used for generating gas and conveying the gas into the treatment kettle, so that wastewater and activated sludge are mixed more uniformly, the sludge sedimentation and concentration speed is increased, the chemical reaction and biodegradation efficiency is improved, and the treatment effect is improved. And the precipitate is conveyed to the top of the stirring assembly through a spiral blade in the stirring assembly, and is discharged through a slag discharge pipe, so that the problem that wastewater is pretreated by adopting a filter screen at the present stage, and time and labor are consumed when the filter screen is cleaned subsequently is solved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to a styrene wastewater treatment device based on biological contact oxidation. Background Art

[0002] Styrene is an important organic chemical raw material, widely used in synthetic resins, synthetic rubber, ion exchange resins and other fields. It is also an important raw material for industries such as dyes, pesticides, pharmaceuticals and mineral processing. In the production process of these industries, styrene-containing wastewater becomes one of the main by-products. Specifically, styrene in wastewater mainly comes from raw material leakage, flushing water in the production process, equipment cleaning water and process wastewater. If these wastewaters are discharged directly without treatment, they will have a serious impact on the environment.

[0003] At present, styrene is very easy to polymerize during the production process, so the inhibitor dibutyl phthalate is added to prevent styrene polymerization. During the production process, part of the inhibitor dibutyl phthalate will be mixed in the styrene wastewater and discharged, but the inhibitor dibutyl phthalate is toxic and will cause damage to the human body and have adverse effects on the environment. The traditional treatment method is to centrally store the toxic medium containing the inhibitor dibutyl phthalate in the device through the inhibitor dibutyl phthalate collection pool, and then send it to a qualified treatment agency for centralized treatment through the wastewater barrel. The amount of hazardous waste treated in this way is huge, and the treatment wastes manpower and material resources, and is highly toxic. This treatment method cannot completely treat the wastewater containing the inhibitor dibutyl phthalate, and the residual inhibitor dibutyl phthalate will be discharged into the environment with the treated water, causing environmental pollution.

[0004] A Chinese patent with publication number CN219771928U is proposed in the prior art to solve the above-mentioned technical problems. The technical solution disclosed in the patent document is as follows: a styrene wastewater treatment system, comprising a sedimentation tank, a Fenton oxidation tank connected to the sedimentation tank at one side of the sedimentation tank, and an adsorption tank connected to the Fenton oxidation tank at one side of the Fenton oxidation tank, an oxidant addition pipe is connected to the bottom of the side wall of the Fenton oxidation tank, a liquid distributor is installed at the bottom of the inner cavity of the Fenton oxidation tank, the liquid distributor comprises a disc installed on the inner side wall of the Fenton oxidation tank and a plurality of nozzles evenly distributed on the disc, the disc is fixedly connected to the nozzle or is integrated into one Type, a plurality of receiving grooves are provided on the lower surface of the disc, the number of the receiving grooves is consistent with that of the nozzles and they correspond one to one, a spray hole is provided inside the nozzle, the spray hole is connected with the receiving groove and the inner cavity of the Fenton oxidation tank, but the pretreated wastewater and the activated sludge are still unevenly mixed, and a stirrer is currently used to stir them. During this process, air or oxygen needs to be injected into the container to maintain a suitable dissolved oxygen concentration, promote the metabolism of microorganisms, and ensure that the dissolved oxygen concentration is suitable for the growth of microorganisms. The structure currently used results in that the suspended matter and sludge in the upper half of the container cannot be fully mixed, which affects the sedimentation and concentration of the sludge, and further leads to the problem of reduced chemical reaction and biodegradation efficiency. Summary of the invention

[0005] The object of the present invention is to provide a styrene wastewater treatment device based on biological contact oxidation to solve the problem of reduced biodegradation efficiency mentioned in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A styrene wastewater treatment device based on biological contact oxidation comprises a treatment kettle, wherein the top of the treatment kettle is fixedly connected with a transmission box, an injection pipe is arranged at the upper end of the treatment kettle, an output pipe is arranged at the bottom of the treatment kettle, and a valve is arranged inside the output pipe, a stirring assembly is arranged inside the treatment kettle, and the stirring assembly is used to stir the wastewater; an aeration assembly is arranged at one side of the treatment kettle, and the aeration assembly is used to aerate the inside of the treatment kettle; a driving assembly is arranged inside the transmission box, and the driving assembly is used to provide power to the aeration assembly and the stirring assembly at the same time; the stirring assembly comprises a rotating rod rotatably connected to the top of the inner wall of the treatment kettle, a spiral blade is fixedly connected to the outer side of the rotating rod, and the outer side of the spiral blade contacts the inner wall of the treatment kettle, and a slag discharge pipe is arranged at the upper end of the treatment kettle.

[0008] The above-mentioned technical scheme is adopted, in which a driving assembly is set up to provide power to the aeration assembly and the stirring assembly at the same time, and the aeration assembly is used to generate gas and transport it to the inside of the treatment kettle, so that the wastewater and activated sludge are mixed more evenly, the speed of sludge sedimentation and concentration is increased, and the efficiency of chemical reaction and biodegradation is thereby improved. The precipitate is then sent to the top of the stirring assembly by the spiral blades and discharged from the slag discharge pipe, which solves the current step of pre-treating the wastewater by means of a filter screen, and avoids the problem of subsequent time-consuming and labor-intensive cleaning of the filter screen.

[0009] A further improvement of the technical solution of the present invention is that the aeration assembly includes a piston cylinder fixedly connected to one side of the treatment kettle, a piston plate is slidably connected between the inner walls of the piston cylinder, the rotating rod is set as a hollow rod, the top of the rotating rod passes through the top of the transmission box and is fixedly connected to a rotating joint, the end of the rotating joint away from the transmission box is fixedly connected to a delivery pipe, and the end of the delivery pipe away from the rotating joint is communicated with the piston cylinder; an air intake pipe is also provided at the lower end of the piston cylinder, and a one-way valve is provided inside the air intake pipe and the delivery pipe, and the shape contour of the piston plate is adapted to the shape contour of the inner cavity of the piston cylinder.

[0010] The above technical solution is adopted. In this solution, when the piston plate is set up, air enters the piston cylinder through the air inlet pipe. When the piston plate is lowered, air is sent into the rotary joint through the delivery pipe. A one-way valve is provided in the middle position of the air inlet pipe and the delivery pipe to prevent the delivery pipe and the air inlet pipe from not being able to operate normally.

[0011] A further improvement of the technical solution of the present invention is that: the driving component includes a bracket fixedly connected to one side of the transmission box, the top of the bracket is fixedly connected to a motor, the output shaft of the motor extends to the interior of the transmission box and is fixedly connected to a No. 1 bevel gear; the outer side of the rotating rod is located in the transmission box and is fixedly connected to a No. 2 bevel gear, and the No. 1 bevel gear and the No. 2 bevel gear are meshingly connected; a turntable is rotatably connected to one side of the transmission box, and a crank rod is rotatably connected to the outer side of the turntable, and an end of the crank rod away from the turntable is rotatably connected to a rocker, and an end of the rocker rod away from the crank rod is hinged to the top of the piston plate; the central axis of the turntable extends to the interior of the transmission box and is fixedly connected to a No. 3 bevel gear, and the No. 3 bevel gear is meshingly connected to the No. 2 bevel gear.

[0012] The above technical solution is adopted, in which the crank rod is inserted into the surface of the turntable, and the rocker is inserted into the surface of the crank rod, and both can rotate. When the turntable rotates, the crank rod and the rocker adjust their positions accordingly, so that the above-mentioned piston plate can move up and down in the inner cavity of the piston cylinder.

[0013] A further improvement of the technical solution of the present invention is that a filter screen is arranged inside the air intake pipe.

[0014] By adopting the above technical solution, the filter screen inside the air intake pipe can effectively prevent the air intake pipe from being blocked during the air intake process and prevent the air intake pipe from being unable to work.

[0015] A further improvement of the technical solution of the present invention is that the rotating rod and the spiral blades are an integrated structure, and the spacing of the spiral blades close to the bottom of the rotating rod is greater than the spacing at the top.

[0016] The above technical solution is adopted, in which the spiral blade and the rotating rod are an integrated structure, the spiral blade is in contact with the outer wall of the rotating rod, the spiral blade is composed of a combination of continuous spiral blades, and the spacing between the spiral blades is different, and the spacing at the bottom is greater than the spacing at the top.

[0017] A further improvement of the technical solution of the present invention is that an aeration box is fixedly connected to the bottom of the rotating rod, an air storage groove is provided at the bottom of the aeration box, a fixed round rod is detachably connected to the middle position of the aeration box, an air supply pipe is fixedly connected to the inner wall of the fixed round rod, a plurality of corrugated baffles are symmetrically installed on the outer wall of the fixed round rod, and an inclined plate is fixedly connected to the top of the corrugated baffle.

[0018] With the above technical solution, when the air is injected into the delivery pipe, the air not discharged with the spiral blades enters the aeration box with the rotating rod. Specifically, the air enters the air delivery pipe and reaches the bottom of the fixed round rod.

[0019] A further improvement of the technical solution of the present invention is that the corrugated baffle and the inclined plate are an integrated corrugated structure, and the inclined plate is at an inwardly turned oblique angle.

[0020] The above technical solution is adopted, in which the corrugated baffle and the inclined plate are an integrated structure, and both the corrugated baffle and the inclined plate are corrugated in shape, the opening diameter of the part close to the fixed round rod is smaller than the opening diameter of the other end, and the air is discharged along the shape contour of the corrugated baffle and the inclined plate.

[0021] A further improvement of the technical solution of the present invention is that the air supply pipe and the fixed round rod are an integrated structure, and the diameter of the air supply pipe at the middle position is smaller than the diameter at both ends.

[0022] The above technical solution is adopted. In this solution, the air enters the air supply pipe and reaches the bottom of the fixed round rod. The opening diameters of the top and bottom of the air supply pipe are larger than the diameter at the middle position. Therefore, after the air is accelerated at the air supply pipe and sent to the bottom of the fixed round rod, the air is discharged along with the corrugated baffle.

[0023] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0024] 1. The present invention provides a styrene wastewater treatment device based on biological contact oxidation, which provides power to the aeration component and the stirring component at the same time through a set driving component, utilizes the aeration component to generate gas and transports it to the inside of the treatment kettle, so that the wastewater and activated sludge are mixed more evenly, and the speed of sludge sedimentation and concentration is improved, thereby improving the efficiency of chemical reaction and biodegradation, and then the precipitate is sent to the top of the stirring component through the spiral blades in the stirring component and discharged from the slag discharge pipe, which solves the current step of using a filter screen to pre-treat the wastewater and avoids the problem of time-consuming and labor-intensive subsequent cleaning of the filter screen.

[0025] 2. The present invention provides a styrene wastewater treatment device based on biological contact oxidation. When the second bevel gear is rotated under the action of the above-mentioned motor and the first bevel gear, the rotating rod connected thereto moves accordingly. The spiral blade and the rotating rod are an integrated structure. The spiral blade fits the outer wall of the rotating rod. The spiral blade is composed of a combination of continuous spiral blades, and the spacing between the spiral blades is different. The spacing at the bottom is greater than the spacing at the top. When the rotating rod rotates under the action of the second bevel gear, the spiral blade can stir the wastewater and sludge inside the treatment kettle from bottom to top. It should be noted that the top of the rotating rod is connected to the rotating joint, and the conveying pipe sends air into the rotating joint. The spacing between the spiral blades gradually decreases from bottom to top, so that the mixture at the bottom can be gradually transported upward, and the transportation speed gradually decreases. The wastewater falls along the shape contour of the spiral blade during the rising process, and the sediment gradually rises along the shape contour of the spiral blade, so that the sediment can be accumulated and squeezed at the top. When the sediment accumulates to a certain extent, it can be discharged along the slag discharge pipe.

[0026] 3. The present invention provides a styrene wastewater treatment device based on biological contact oxidation. When air is injected through the arranged delivery pipe, the air that is not discharged with the spiral blades enters the aeration box with the rotating rod. Specifically, after the air enters the air delivery pipe, it reaches the bottom of the fixed round rod. The opening diameters of the top and bottom of the air delivery pipe are larger than the diameter at the middle position. Therefore, after the air is accelerated at the air delivery pipe and sent to the bottom of the fixed round rod, the air is discharged with the corrugated baffle. It should be noted that the corrugated baffle and the inclined plate are an integrated structure, and the corrugated baffle and the inclined plate are both corrugated in shape. The opening diameter of the part close to the fixed round rod is smaller than the opening diameter of the other end. The air is discharged with the shape contour of the corrugated baffle and the inclined plate, thereby allowing the gas to be sent to the bottom of the container. The aeration box and the rotating rod are an integrated structure, so the corrugated baffle and the inclined plate can rotate with the rotating rod, so that the wastewater and activated sludge are mixed more evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the three-dimensional structure of the cooperation of the first bevel gear, the second bevel gear and the third bevel gear in the present invention;

[0030] Figure 3 It is a schematic diagram of the coordinated three-dimensional structure of the turntable, crank rod and rocker in the present invention;

[0031] Figure 4 It is a three-dimensional structural schematic diagram of the piston cylinder in the present invention;

[0032] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the processing kettle in the present invention;

[0033] Figure 6 It is a schematic diagram of the three-dimensional structure of the spiral blade in the present invention;

[0034] Figure 7 It is a schematic diagram of the three-dimensional structure of the transfer rod of the present invention;

[0035] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the transfer rod and the spiral blade in the present invention;

[0036] Fig. 9 It is a schematic diagram of the cross-sectional three-dimensional structure of the aeration box in the present invention;

[0037] Fig.10 It is a schematic diagram of the three-dimensional structure of the fixed round rod in the present invention.

[0038] In the figure: 1. treatment kettle; 2. transmission box; 3. bracket; 4. motor; 5. delivery pipe; 6. piston cylinder; 7. No. 1 bevel gear; 8. No. 2 bevel gear; 9. No. 3 bevel gear; 10. rotary joint; 11. turntable; 12. crank rod; 13. rocker; 14. air inlet pipe; 15. piston plate; 16. rotating rod; 18. spiral blade; 19. aeration box; 21. air storage tank; 22. fixed round rod; 23. air delivery pipe; 24. corrugated baffle; 25. inclined plate; 26. slag discharge pipe. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with embodiments:

[0040] Example 1

[0041] like Figure 1 and Figure 5As shown, the present invention provides a styrene wastewater treatment device based on biological contact oxidation, comprising a treatment kettle 1, a transmission box 2 is fixedly connected to the top of the treatment kettle 1, an injection pipe is arranged at the upper end of the treatment kettle 1, an output pipe is arranged at the bottom of the treatment kettle 1, and a valve is arranged inside the output pipe, a stirring component is arranged inside the treatment kettle 1, and the stirring component is used to stir the wastewater; an aeration component, the aeration component is arranged on one side of the treatment kettle 1, and the aeration component is used to aerate the inside of the treatment kettle 1; a driving component, the driving component is arranged inside the transmission box 2, and the driving component is used to provide power to the aeration component and the stirring component at the same time; the stirring component comprises a rotating rod 16 rotatably connected to the top of the inner wall of the treatment kettle 1, a spiral blade 18 is fixedly connected to the outer side of the rotating rod 16, and the outer side of the spiral blade 18 contacts the inner wall of the treatment kettle 1, and a slag discharge pipe 26 is arranged at the upper end of the treatment kettle 1.

[0042] In this embodiment, since it is necessary to inject air or oxygen into the container to maintain an appropriate dissolved oxygen concentration, promote the metabolism of microorganisms, and ensure that the dissolved oxygen concentration is suitable for the growth of microorganisms, the structure currently used causes the suspended matter and sludge in the upper half of the container to be unable to be fully mixed, affecting the sedimentation and concentration of the sludge. The drive assembly is provided to simultaneously provide power to the aeration assembly and the stirring assembly, and the aeration assembly is used to generate gas and transport it to the interior of the treatment kettle 1, so that the wastewater and activated sludge are mixed more evenly, the sedimentation and concentration speed of the sludge is increased, and the efficiency of chemical reaction and biodegradation is thereby increased. The spiral blades 18 in the stirring assembly are then used to deliver the precipitate to the top of the stirring assembly and discharged from the slag discharge pipe 26, which solves the current need to use a filter to pre-treat the wastewater, and avoids the subsequent time-consuming and labor-intensive problem of cleaning the filter.

[0043] Example 2

[0044] like Figure 2 , Figure 3 and Figure 4 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the aeration assembly includes a piston cylinder 6 fixedly connected to one side of the treatment kettle 1, a piston plate 15 is slidably connected between the inner walls of the piston cylinder 6, a rotating rod 16 is set as a hollow rod, the top of the rotating rod 16 passes through the top of the transmission box 2 and is fixedly connected to a rotating joint 10, the end of the rotating joint 10 away from the transmission box 2 is fixedly connected to a delivery pipe 5, and the end of the delivery pipe 5 away from the rotating joint 10 is communicated with the piston cylinder 6; an air intake pipe 14 is also provided at the lower end of the piston cylinder 6, and a one-way valve is provided inside the air intake pipe 14 and the delivery pipe 5, the shape contour of the piston plate 15 is adapted to the shape contour of the inner cavity of the piston cylinder 6, and a filter is provided inside the air intake pipe 14.

[0045] In this embodiment, since most of the current methods used are to stir the bottom of the container to mix the wastewater and sludge, which has certain limitations, when the piston plate 15 is rising, the air enters the piston cylinder 6 through the air inlet pipe 14, and when the piston plate 15 is descending, the air is sent into the rotary joint 10 through the delivery pipe 5. A one-way valve is provided at the middle position of the air inlet pipe 14 and the delivery pipe 5. External air can only flow into the piston cylinder 6 through the air inlet pipe 14, and be discharged into the treatment kettle 1 through the delivery pipe 5.

[0046] Example 3

[0047] like Figure 2 , Figure 3 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the driving component includes a bracket 3 fixedly connected to one side of the transmission box 2, the top of the bracket 3 is fixedly connected to a motor 4, the output shaft of the motor 4 extends to the interior of the transmission box 2 and is fixedly connected to a first bevel gear 7; the outer side of the rotating rod 16 is fixedly connected to a second bevel gear 8 located in the transmission box 2, and the first bevel gear 7 and the second bevel gear 8 are meshingly connected; a turntable 11 is rotatably connected to one side of the transmission box 2, a crank rod 12 is rotatably connected to the outer side of the turntable 11, and an end of the crank rod 12 away from the turntable 11 is rotatably connected to a rocker 13, and an end of the rocker 13 away from the crank rod 12 is hinged to the top of the piston plate 15; the central axis of the turntable 11 extends to the interior of the transmission box 2 and is fixedly connected to a third bevel gear 9, and the third bevel gear 9 is meshingly connected to the second bevel gear 8.

[0048] In this embodiment, the motor 4 is arranged to drive the No. 1 bevel gear 7 to perform circular motion, and the No. 1 bevel gear 7 drives the No. 2 bevel gear 8 to move again. At this time, the No. 3 bevel gear 9 performs circular motion under the action of the No. 2 bevel gear 8, and the turntable 11 connected to the No. 3 bevel gear 9 can perform circular motion. It should be noted that the crank rod 12 is inserted into the surface of the turntable 11, and the rocker 13 is inserted into the surface of the crank rod 12, and both can rotate. When the turntable 11 rotates, the crank rod 12 and the rocker 13 adjust their positions accordingly, so that the above-mentioned piston plate 15 can perform piston motion in the inner cavity of the piston cylinder 6.

[0049] When the No. 2 bevel gear 8 rotates under the action of the above-mentioned motor 4 and the No. 1 bevel gear 7, the rotating rod 16 connected thereto moves accordingly. The spiral blade 18 and the rotating rod 16 are an integrated structure. The spiral blade 18 fits against the outer wall of the rotating rod 16. The spiral blade 18 is composed of a combination of continuous spiral blades, and the spacing between the spiral blades 18 is different. The spacing at the bottom is greater than the spacing at the top. When the rotating rod 16 rotates under the action of the No. 2 bevel gear 8, the spiral blade 18 can stir the wastewater and sludge inside the treatment kettle 1 from bottom to top. It should be noted that the top of the rotating rod 16 is connected to the rotary joint 10, and the conveying pipe 5 delivers air into the rotary joint 10.

[0050] Specifically, the spiral blades 18 can gradually transport the mixture at the bottom upward, wherein the wastewater flows downward along the shape contour of the spiral blades 18 during the rising process; the spacing between the spiral blades 18 gradually decreases from bottom to top, so that the lifting speed of the precipitated impurities gradually decreases, and the sediment below will push the sediment above upward, which can effectively reduce the sediment from being washed downward on the one hand, and on the other hand, when there are a lot of sediments, due to untimely discharge from the upper part, the sediments will accumulate on the upper part and be squeezed, thereby squeezing out the sewage, and the impurities will be discharged through the slag discharge pipe 26 at the same time.

[0051] Example 4

[0052] like Figure 5-Figure 10 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, an aeration box 19 is fixedly connected to the bottom of the rotating rod 16, an air storage groove 21 is provided at the bottom of the aeration box 19, a fixed round rod 22 is detachably connected to the middle position of the aeration box 19, an air supply pipe 23 is fixedly connected to the inner side wall of the fixed round rod 22, a plurality of corrugated baffles 24 are symmetrically installed on the outer side wall of the fixed round rod 22, and an inclined plate 25 is fixedly connected to the top of the corrugated baffles 24, the corrugated baffles 24 and the inclined plates 25 are an integrated corrugated structure, the inclined plates 25 are at an inwardly flipped angle, the air supply pipe 23 and the fixed round rod 22 are an integrated structure, and the diameter of the air supply pipe 23 at the middle position is smaller than the diameter at both ends.

[0053] In this embodiment, since the interior of the rotating rod 16 is hollow, when the delivery pipe 5 injects air, the air that is not discharged with the spiral blade 18 enters the aeration box 19 with the rotating rod 16. Specifically, the air enters the air delivery pipe 23 and reaches the bottom of the fixed round rod 22. The opening diameters of the top and bottom of the air delivery pipe 23 are larger than the diameter at the middle position. Therefore, after the air is accelerated at the air delivery pipe 23 and sent to the bottom of the fixed round rod 22, the air is discharged with the corrugated baffle 24. It should be noted that Yes, the corrugated baffle 24 and the inclined plate 25 are an integrated structure, and both the corrugated baffle 24 and the inclined plate 25 are corrugated in shape, the opening diameter of the part close to the fixed round rod 22 is smaller than the opening diameter of the other end, and the air is discharged along the shape contour of the corrugated baffle 24 and the inclined plate 25, thereby allowing the gas to be sent to the bottom of the container, and the aeration box 19 and the rotating rod 16 are an integrated structure, so the corrugated baffle 24 and the inclined plate 25 can rotate with the rotating rod 16, so that the wastewater and activated sludge are mixed more evenly.

[0054] The working principle of the styrene wastewater treatment device based on biological contact oxidation is explained in detail below.

[0055] like Figure 1-Figure 10 As shown, when in use, the pretreated wastewater is first injected into the treatment kettle 1, and the motor 4 is used to drive the No. 1 bevel gear 7 to perform circular motion. The No. 1 bevel gear 7 drives the No. 2 bevel gear 8 to move again, and the rotating rod 16 connected thereto moves accordingly. The spiral blade 18 and the rotating rod 16 are an integrated structure, and the spiral blade 18 fits the outer wall of the rotating rod 16. The spiral blade 18 is composed of a continuous spiral blade combination, and the spacing between the spiral blades 18 is different, and the spacing at the bottom is greater than the spacing at the top. When the rotating rod 16 rotates under the action of the No. 2 bevel gear 8, the spiral blade 18 can stir the wastewater and sludge inside the treatment kettle 1 from bottom to top, so that the mixing between the two is more uniform.

[0056] It should be noted that the top of the rotating rod 16 is connected to the rotating joint 10. After the delivery pipe 5 delivers air into the rotating joint 10, the air is stored inside the rotating rod 16. At this time, the third bevel gear 9 performs a circular motion under the force of the second bevel gear 8, and the turntable 11 connected to the third bevel gear 9 can perform a circular motion. It should be noted that the crank rod 12 is plugged into the surface of the turntable 11, and the rocker 13 is plugged into the surface of the crank rod 12, and both can rotate. When the turntable 11 rotates, the crank rod 12 and the rocker 13 adjust their positions accordingly. At this time, the piston plate 15 performs a lifting motion in the inner cavity of the piston cylinder 6. Specifically, when the piston plate 15 rises, the air enters the piston cylinder 6 from the air inlet pipe 14, and when the piston plate 15 descends, the air is delivered into the rotating joint 10 from the delivery pipe 5.

[0057] Since the interior of the rotating rod 16 is hollow, when the conveying pipe 5 injects air, the air that is not discharged with the spiral blades 18 enters the aeration box 19 with the rotating rod 16. Specifically, after the air enters the air supply pipe 23, it reaches the bottom of the fixed round rod 22. The opening diameters of the top and bottom of the air supply pipe 23 are larger than the diameter at the middle position. Therefore, after the air is accelerated at the air supply pipe 23 and sent to the bottom of the fixed round rod 22, the air is discharged with the corrugated baffle 24. It should be noted that the corrugated baffle 24 and the inclined plate 25 are an integrated structure, and the corrugated baffle 24 and the inclined plate 25 are both corrugated in shape. The opening diameter of the part close to the fixed round rod 22 is smaller than the opening diameter at the other end. The air is discharged with the shape contour of the corrugated baffle 24 and the inclined plate 25, thereby allowing the gas to be sent to the bottom of the container. The aeration box 19 and the rotating rod 16 are an integrated structure, so the corrugated baffle 24 and the inclined plate 25 can rotate with the rotating rod 16, so that the wastewater and activated sludge are mixed more evenly.

[0058] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A styrene wastewater treatment device based on biological contact oxidation, comprising a treatment kettle (1), the top of the treatment kettle (1) is fixedly connected to a transmission box (2), an injection pipe is arranged at the upper end of the treatment kettle (1), an output pipe is arranged at the bottom of the treatment kettle (1), and a valve is arranged inside the output pipe, and a stirring component is arranged inside the treatment kettle (1), and the stirring component is used to stir the wastewater; characterized in that: Also includes: an aeration component, the aeration component being arranged on one side of the processing kettle (1), and the aeration component being used to aerate the interior of the processing kettle (1); A drive assembly, the drive assembly being arranged inside the transmission box (2) and being used to simultaneously provide power to the aeration assembly and the stirring assembly; The stirring assembly comprises a rotating rod (16) rotatably connected to the top of the inner wall of the processing kettle (1), a spiral blade (18) is fixedly connected to the outer side of the rotating rod (16), the outer side of the spiral blade (18) is in contact with the inner wall of the processing kettle (1), and a slag discharge pipe (26) is provided at the upper end of the processing kettle (1).

2. A styrene wastewater treatment device based on biological contact oxidation according to claim 1, characterized in that: The aeration assembly comprises a piston cylinder (6) fixedly connected to one side of the treatment kettle (1); a piston plate (15) is slidably connected between the inner walls of the piston cylinder (6); the rotating rod (16) is arranged as a hollow rod; the top of the rotating rod (16) passes through the top of the transmission box (2) and is fixedly connected to a rotating joint (10); the end of the rotating joint (10) away from the transmission box (2) is fixedly connected to a delivery pipe (5); the end of the delivery pipe (5) away from the rotating joint (10) is communicated with the piston cylinder (6); an air inlet pipe (14) is also arranged at the lower end of the piston cylinder (6); both the air inlet pipe (14) and the delivery pipe (5) are provided with a one-way valve; the shape contour of the piston plate (15) is adapted to the shape contour of the inner cavity of the piston cylinder (6).

3. A styrene wastewater treatment device based on biological contact oxidation according to claim 2, characterized in that: The driving component comprises a bracket (3) fixedly connected to one side of a transmission box (2); a motor (4) is fixedly connected to the top of the bracket (3); an output shaft of the motor (4) extends into the interior of the transmission box (2) and is fixedly connected to a first bevel gear (7); a second bevel gear (8) is fixedly connected to the outer side of the rotating rod (16) located in the transmission box (2); the first bevel gear (7) and the second bevel gear (8) are meshingly connected; one side of the transmission box (2) rotates A rotating disk (11) is connected, and a crank rod (12) is rotatably connected to the outer side of the rotating disk (11), and an end of the crank rod (12) away from the rotating disk (11) is rotatably connected to a rocker (13), and an end of the rocker (13) away from the crank rod (12) is hinged to the top of a piston plate (15); the central axis of the rotating disk (11) extends to the interior of the transmission box (2) and is fixedly connected to a third bevel gear (9), and the third bevel gear (9) is meshingly connected to a second bevel gear (8).

4. A styrene wastewater treatment device based on biological contact oxidation according to claim 3, characterized in that: A filter screen is arranged inside the air intake pipe (14).

5. A styrene wastewater treatment device based on biological contact oxidation according to claim 4, characterized in that: The rotating rod (16) and the spiral blade (18) are of an integrated structure, and the spacing of the spiral blade (18) close to the bottom of the rotating rod (16) is greater than the spacing at the top.

6. A styrene wastewater treatment device based on biological contact oxidation according to claim 5, characterized in that: The bottom of the rotating rod (16) is fixedly connected to an aeration box (19), the bottom of the aeration box (19) is provided with an air storage groove (21), a fixed round rod (22) is detachably connected to the middle position of the aeration box (19), an air supply pipe (23) is fixedly connected to the inner side wall of the fixed round rod (22), a plurality of corrugated baffles (24) are symmetrically installed on the outer side wall of the fixed round rod (22), and the tops of the corrugated baffles (24) are fixedly connected to inclined plates (25).

7. A styrene wastewater treatment device based on biological contact oxidation according to claim 6, characterized in that: The corrugated baffle (24) and the inclined plate (25) are an integrated corrugated structure, and the inclined plate (25) is at an inwardly tilted angle.

8. A styrene wastewater treatment device based on biological contact oxidation according to claim 6, characterized in that: The air supply pipe (23) and the fixed round rod (22) are an integrated structure, and the diameter of the air supply pipe (23) at the middle position is smaller than the diameters at both ends.

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