Sewage treatment system for environmental engineering

Abstract

The invention is applicable to the technical field of sewage treatment, and provides a sewage treatment system for environmental engineering, which comprises a sewage treatment tank, a plurality of biological membrane treatment parts are uniformly clamped at the top of the sewage treatment tank; the biological membrane treatment part comprises a winding frame; the winding frame comprises a winding roller; a plurality of rubber belts are evenly wound on the peripheral side face of the winding roller in the axis direction of the winding roller. A clamping groove is formed in the surface of the rubber belt, and a rubber strip matched with the clamping groove is fixed to the back face of the rubber belt. A hydrophilic strip-shaped biological membrane is connected between every two adjacent rubber belts in a matched mode. The rubber strip is of a hollow structure, and an exhaust pipe is fixed to the bottom of the rubber strip. According to the device, the hydrophilic strip-shaped biological membranes are mounted between the adjacent rubber belts through the zipper structures, and the hydrophilic strip-shaped biological membranes are driven to be synchronously wound / released along with winding / releasing of the rubber belts, so that the hydrophilic strip-shaped biological membranes are conveniently transported and quickly recycled, and the sewage treatment efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and more particularly to a sewage treatment system for environmental engineering. Background Art

[0002] Ecological water treatment technology is a technology that treats environmental engineering wastewater in an original ecological way. It generally uses biofilms to adsorb and degrade organic pollutants and purify wastewater. Biofilms are divided into strip biofilms and cloth-like biofilms.

[0003] For hydrophilic strip biofilms, they are generally hung in a purification tank to purify sewage. After the hydrophilic strip biofilms are seriously polluted, they need to be replaced to ensure the purification effect. The hydrophilic strip biofilms will absorb moisture and organic matter during use. The moisture and organic matter remaining on the hydrophilic strip biofilms will increase the weight of the hydrophilic strip biofilms, making it difficult for staff to remove the hydrophilic strip biofilms, reducing the efficiency of the hydrophilic strip biofilm recovery, and thus reducing the efficiency of sewage treatment for environmental engineering. At the same time, the hydrophilic strip biofilms will be too moist, making subsequent treatment inconvenient. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide a sewage treatment system for environmental engineering, in which a hydrophilic strip biofilm is installed between adjacent rubber belts through a zipper structure. As the rubber belt is rolled up / released, the hydrophilic strip biofilm is driven to be rolled up / released synchronously, which facilitates the transportation and rapid recovery of the hydrophilic strip biofilm and improves the efficiency of sewage treatment.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sewage treatment system for environmental engineering, comprising a sewage treatment tank; a plurality of biofilm treatment parts are evenly connected and fixed on the top of the sewage treatment tank; the biofilm treatment parts include a winding rack; the winding rack includes a winding roller; a plurality of rubber belts are evenly wound on the circumferential side of the winding roller along its axial direction; a clamping groove is provided on the surface of the rubber belt, and a rubber strip adapted to the clamping groove is fixed on the back of the rubber belt; a hydrophilic strip biofilm is adapted to be connected between two adjacent rubber belts; the rubber strip It is a hollow structure with an exhaust pipe fixed at its bottom; a one-way valve is provided on the exhaust pipe; a counterweight lifting plate is fixed between each of the exhaust pipes; an internal threaded sleeve is symmetrically fixed on the surface of the counterweight lifting plate; a number of baffles are evenly fixed on the top of the sewage treatment tank; an external threaded sleeve is symmetrically fixed on the surface of the baffle; a guide hole is provided on the inner bottom surface of the external threaded sleeve; a push rod is slidably provided in the guide hole; a stud screwed to the internal threaded sleeve is fixed at the bottom of the push rod; the push rod slides in cooperation with the guide hole; a nut is screwed on the top of the external threaded sleeve.

[0006] The present invention is further configured as follows: a first cloth tape is fixed to the back of the rubber belt; a first sprocket group is provided on the first cloth tape; a second cloth tape is symmetrically fixed to the side of the hydrophilic strip biofilm; a second sprocket group is provided on the second cloth tape; a pull head is meshed between the first sprocket group and the adjacent second sprocket group; and stop heads are provided at both ends of the first cloth tape.

[0007] The present invention is further configured as follows: a rotating shaft and a connecting pipe are respectively fixed at both ends of the winding roller; the winding frame also includes two groups of baffles that respectively penetrate and rotate with the rotating shaft and the connecting pipe; an ear plate is fixed on the side of the baffle; a vertical plate is fixed on the surface of one of the ear plates; a servo motor is fixed on the side of the vertical plate; and the output end of the servo motor is fixedly connected to one end of the rotating shaft.

[0008] The present invention is further configured as follows: the rubber strip and the hydrophilic strip biofilm in the wound state form several groups of spiral cavities; the interior of the winding roller is configured as a hollow structure, and a plurality of air holes are evenly provided on its circumferential side surface; a discharge port is provided on the outer circumferential side surface of the winding roller; a sealing cover is fixedly installed on the discharge port by fastening bolts; a sewage inlet pipe is provided on the side of the sewage treatment tank near its top, and a discharge pipe is provided on the other opposite side near its bottom.

[0009] The present invention is further configured as follows: a vertical guide plate is fixed to the side of the ear plate; an inclined guide plate is fixed to the bottom of the vertical guide plate; a number of support plates are symmetrically fixed to the top of the sewage treatment tank; a number of slide grooves are symmetrically provided on the top of the sewage treatment tank; a T-shaped plate is slidably provided inside the slide groove; a number of plug rods are evenly fixed to the side of the T-shaped plate; the plug rods slide through the support plate; a reset spring mounted on the corresponding plug rod is fixed between the T-shaped plate and the support plate; a ball head is fixed to the end of the plug rod; and sockets that are plugged into and matched with the corresponding plug rods are evenly provided on the side of the vertical guide plate.

[0010] The present invention is further configured as follows: an air supply pipe is provided between adjacent rubber strips; an air inlet pipe fixedly connected to the air supply pipe is provided through the side of the baffle; a compressed air pump is fixedly installed on the side of the sewage treatment tank; a delivery pipe is fixed to the output end of the compressed air pump; a first branch pipe and a second branch pipe are sequentially provided on the side surface of the delivery pipe; the first branch pipe, the second branch pipe and the end of the delivery pipe are all connected to an air disk; and a plurality of ear tubes are evenly connected to the side surface of the air disk.

[0011] The present invention is further configured as follows: each ear tube end is connected to a screw joint through a hose; the air intake pipe is screwed to the corresponding screw joint on the first branch pipe; the connecting pipe is screwed to the corresponding screw joint on the second branch pipe; the delivery pipe is provided with a solenoid valve near its end and on the first branch pipe and the second branch pipe; a controller is installed on the side of the sewage treatment tank; the output end of the controller is electrically connected to the servo motor, the solenoid valve and the compressed air pump respectively.

[0012] The present invention is further configured as follows: a number of air ducts are evenly fixed between the inner walls of the sewage treatment tank; a number of connecting holes are evenly provided on the side surfaces of the air ducts; a number of annular air bags connected with the corresponding connecting holes are evenly fixed on the side surfaces of the air ducts; one end of each of the air ducts is sealed, and the other end is screwed to the corresponding screw joint on the delivery pipe; guide grooves are evenly and symmetrically provided on the inner wall of the sewage treatment tank; a connecting rod is slidably provided on the inner wall of the guide groove; a stop roller is fixed between the two opposite connecting rods; a connecting head is fixed to the end of the connecting rod; a number of square columns are evenly fixed on the side surfaces of the sewage treatment tank; a sliding sleeve is slidably provided on the square column; a socket that is plugged into the connecting head is fixed to the end of the sliding sleeve; a tension spring mounted on the square column is fixedly connected between the sewage treatment tank and the corresponding sliding sleeve.

[0013] The advantages of the present invention are: 1. The present invention realizes multi-stage purification of sewage by linearly clamping multiple groups of biofilm treatment parts between two support plates, thereby improving the effect of sewage treatment, facilitating the rapid assembly and disassembly of the biofilm treatment parts, and improving the efficiency of sewage treatment.

[0014] 2. The present invention installs the hydrophilic strip biofilm between adjacent rubber belts through a zipper structure. As the rubber belt is rolled up / released, the hydrophilic strip biofilm is synchronously rolled up / released, which facilitates the transportation and rapid recovery of the hydrophilic strip biofilm, further improving the efficiency of sewage treatment.

[0015] 3. During the rolling process, the hydrophilic strip biofilm of the present invention passes between the inflated annular airbag and the retaining roller, and the moisture therein is squeezed out, thereby reducing the weight of the biofilm. At the same time, the rolled-up sheet biofilm is spiral-shaped, separated from each other and not attached. By introducing air into the spiral cavity formed after rolling, the sheet biofilm is air-dried, thereby further improving the drying effect of the sheet biofilm and facilitating the recovery and subsequent treatment of the sheet biofilm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a sewage treatment system for environmental engineering according to the present invention.

[0017] Figure 2 For the present invention Figure 1A magnified view of area A.

[0018] Figure 3 For the present invention Figure 1 A structural diagram from another angle.

[0019] Figure 4 For the present invention Figure 1 Schematic diagram of the local structure from the left view.

[0020] Figure 5 It is a structural schematic diagram of the sewage treatment tank of the present invention.

[0021] Figure 6 For the present invention Figure 5 Magnified view of area C.

[0022] Figure 7 For the present invention Figure 5 Schematic diagram of the structure from a top-down perspective.

[0023] Figure 8 For the present invention Figure 7 Magnified view of area D.

[0024] Figure 9 It is a structural schematic diagram of the biofilm treatment part of the present invention.

[0025] Figure 10 For the present invention Figure 9 Schematic diagram of the structure from an upward perspective.

[0026] Figure 11 For the present invention Figure 10 Magnified view of area B.

[0027] Figure 12 It is a schematic diagram of the local structure of the rubber belt of the present invention.

[0028] Figure 13 Schematic diagram of the local structure of the hydrophilic strip biofilm of the present invention.

[0029] Figure 14 It is a structural schematic diagram of the winding frame of the present invention.

[0030] Figure 15 For the present invention Figure 14 Schematic diagram of the structure from a normal perspective.

[0031] Figure 16 It is a structural schematic diagram of the support rod of the present invention.

[0032] In the figure: 1. Sewage treatment tank; 2. Biofilm treatment unit; 3. Winding rack; 4. Winding roller; 5. Rubber belt; 6. Clamping groove; 7. Rubber strip; 8. Hydrophilic biofilm strip; 9. Exhaust pipe; 10. Counterweight lifting plate; 11. Internally threaded sleeve; 12. Baffle plate; 13. Externally threaded sleeve; 14. Guide hole; 15. Stop rod; 16. First cloth belt; 17. First sprocket group; 18. Second cloth belt; 19. Second sprocket group; 20. Pull head; 21. Stop head; 22. Rotating shaft; 23. Connecting pipe; 24. Baffle plate; 25. Ear plate; 26. Riser; 27. Servo motor; 28. Vent hole. 29. Vertical guide plate; 30. Oblique guide plate; 31. Support plate; 32. Slide; 33. T-plate; 34. Insert rod; 35. Return spring; 36. Ball head; 37. Air pipe; 38. Inlet pipe; 39. Compressed air pump; 40. Delivery pipe; 41. First branch pipe; 42. Second branch pipe; 43. Air disc; 44. Ear tube; 45. Controller; 46. Air guide pipe; 47. Annular air bag; 48. Guide groove; 49. Connecting rod; 50. Stop roller; 51. Connector; 52. Square column; 53. Sleeve; 54. Socket; 55. Tension spring; 56. Sewage inlet pipe; 57. Socket; 58. Stud. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0035] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0036] For example 1, please refer to Figure 1-16 , the present invention provides the following technical solutions: A sewage treatment system for environmental engineering, specifically, includes a sewage treatment tank 1; a plurality of biofilm treatment parts 2 are evenly clamped and arranged on the top of the sewage treatment tank 1; the biofilm treatment part 2 includes a winding frame 3; the winding frame 3 includes a winding roller 4; a plurality of rubber belts 5 are evenly wound along the axial direction of the side surface of the winding roller 4; a clamping groove 6 is opened on the surface of the rubber belt 5, and a rubber strip 7 adapted to the clamping groove 6 is fixed on the back thereof; a hydrophilic strip biofilm 8 is adapted to be connected between two adjacent rubber belts 5.

[0037] The rubber strip 7 is a hollow structure, and an exhaust pipe 9 is fixed at its bottom; a one-way valve is provided on the exhaust pipe 9; a counterweight lifting plate 10 is fixed between each exhaust pipe 9; an internal threaded sleeve 11 is symmetrically fixed on the surface of the counterweight lifting plate 10.

[0038] A number of baffles 12 are evenly fixed on the top of the sewage treatment tank 1; externally threaded sleeves 13 are symmetrically fixed on the surface of the baffles 12; a guide hole 14 is opened on the inner bottom surface of the externally threaded sleeve 13; a push rod 15 is slidably arranged in the guide hole 14; a stud 58 screwed to the internally threaded sleeve 11 is fixed to the bottom of the push rod 15; the push rod 15 and the guide hole 14 are slidably matched; a nut is screwed to the top of the externally threaded sleeve 13.

[0039] Working principle of this embodiment 1: By installing the hydrophilic strip biofilm 8 between two adjacent rubber belts 5, controlling the rotation of the winding roller 4, the rubber belt 5 is driven to be wound. During this process, the rubber strip 7 is clamped in the clamping groove 6, thereby driving the hydrophilic strip biofilm 8 to be wound. After the winding is completed, the rubber belt 5 and the hydrophilic strip biofilm 8 form a spiral cavity, reducing the footprint of the hydrophilic strip biofilm 8 and facilitating the transportation of the biofilm treatment part 2.

[0040] The biofilm treatment parts 2 of each group in the rolled-up state are linearly clamped on the top of the sewage treatment tank 1 in turn to realize multi-stage purification treatment of sewage and improve the effect of sewage treatment; by placing the counterweight lifting plate 10 inside the sewage treatment tank 1, the stud 58 at the bottom of the push rod 15 is screwed into the internal threaded sleeve 11, and the winding roller 4 is controlled to rotate in the opposite direction to realize the release of the hydrophilic strip biofilm 8. Under the guidance of the push rod 15, the hydrophilic strip biofilm 8 is smoothly unfolded. When the counterweight lifting plate 10 is abutted against the inner bottom surface of the sewage treatment tank 1, the top end of the push rod 15 is received in the external threaded sleeve 13, and the nut is tightened to prevent the push rod 15 from moving up and down along the guide hole 14, which facilitates the rapid assembly and disassembly of the biofilm treatment part 2 and improves the efficiency of sewage treatment.

[0041] For example 2, please refer to Figure 1-16 The second embodiment makes the following improvements on the basis of the first embodiment. Specifically, a first cloth tape 16 is fixed to the back of the rubber belt 5; a first sprocket group 17 is provided on the first cloth tape 16; a second cloth tape 18 is symmetrically fixed to the side of the hydrophilic strip biofilm 8; a second sprocket group 19 is provided on the second cloth tape 18; a pull head 20 is meshed between the first sprocket group 17 and the adjacent second sprocket group 19; and stop heads 21 are provided at both ends of the first cloth tape 16.

[0042] The first fabric tape 16 , the first sprocket set 17 , the second fabric tape 18 , the second sprocket set 19 , the slider 20 and the stopper 21 constitute a zipper structure.

[0043] A rotating shaft 22 and a connecting pipe 23 are fixed to both ends of the winding roller 4 respectively; the winding frame 3 also includes two sets of baffles 24 that respectively penetrate and rotate with the rotating shaft 22 and the connecting pipe 23; an ear plate 25 is fixed to the side of the baffle 24; a vertical plate 26 is fixed to the surface of one ear plate 25; a servo motor 27 is fixed to the side of the vertical plate 26; the output end of the servo motor 27 is fixedly connected to one end of the rotating shaft 22.

[0044] The winding / releasing of the winding roller 4 can be achieved by controlling and starting the servo motor 27 to drive the rotating shaft 22 to rotate forward / reverse.

[0045] A vertical guide plate 29 is fixed to the side of the ear plate 25; an inclined guide plate 30 is fixed to the bottom of the vertical guide plate 29; a number of support plates 31 are symmetrically fixed to the top of the sewage treatment tank 1; a number of slide grooves 32 are symmetrically opened on the top of the sewage treatment tank 1; a T-shaped plate 33 is slidably set inside the slide groove 32; a number of plug rods 34 are evenly fixed to the side of the T-shaped plate 33; the plug rods 34 slide through the support plate 31; a return spring 35 is fixed between the T-shaped plate 33 and the support plate 31 and is sleeved on the corresponding plug rod 34; a ball head 36 is fixed to the end of the plug rod 34; the side of the vertical guide plate 29 is evenly opened with sockets 57 that are plugged into the corresponding plug rod 34.

[0046] Working principle of the second embodiment: The two vertical guide plates 29 on the biofilm treatment part 2 in the rolled-up state are gradually lowered along the two opposite support plates 31. In the initial state, the return spring 35 is in a normal state, the insertion rod 34 passes through the support plate 31, and the ball head 36 is gradually squeezed during the descending process of the inclined guide plate 30, so that the insertion rod 34 slides in the direction away from the support plate 31, and the return spring 35 is stretched until the insertion rod 34 is stored in the interior of the support plate 31. When the vertical guide plate 29 continues to descend, the elastic return force of the return spring 35 drives the ball head 36 at the end of the insertion rod 34 to press against On the side of the vertical guide plate 29, when the socket 57 slides to be coaxial with the corresponding insertion rod 34, under the elastic force of the reset spring 35, the insertion rod 34 is driven to be inserted into the corresponding socket 57, completing the rapid installation of the biofilm treatment part 2 and the support plate 31; when the biofilm treatment part 2 needs to be replaced, it is only necessary to pull the T-shaped plate 33 in the direction away from the support plate 31 to drive each group of insertion rods 34 to push out from the corresponding socket 57, thereby releasing the fixed limit of the biofilm treatment part 2, and completing the rapid disassembly and replacement of the biofilm treatment part 2, thereby improving work efficiency.

[0047] For example three, please refer to Figure 1-16, this embodiment three makes the following improvements on the basis of embodiment one. Specifically, the rubber strip 7 in the wound state and the hydrophilic strip biofilm 8 form several groups of spiral cavities; the interior of the winding roller 4 is a hollow structure, and a plurality of air holes 28 are evenly opened on its circumferential side; a discharge port is opened on the outer circumferential side of the winding roller 4; a sealing cover is fixedly installed on the discharge port by fastening bolts; a sewage inlet pipe 56 is provided on the side of the sewage treatment box 1 near its top, and a discharge pipe is provided on the other opposite side near its bottom.

[0048] The provision of the discharge port and the sealing cover facilitates cleaning of the interior of the winding roller 4.

[0049] An air pipe 37 is provided between adjacent rubber strips 7; an air inlet pipe 38 fixedly connected to the air pipe 37 is provided through the side of the baffle 24; a compressed air pump 39 is fixedly installed on the side of the sewage treatment tank 1; a delivery pipe 40 is fixed to the output end of the compressed air pump 39; a first branch pipe 41 and a second branch pipe 42 are sequentially connected to the side of the delivery pipe 40; the first branch pipe 41, the second branch pipe 42 and the end of the delivery pipe 40 are all connected to an air disk 43; a number of ear tubes 44 are evenly connected to the side of the air disk 43.

[0050] The ends of each ear tube 44 are connected to a screw joint through a hose; the air intake pipe 38 is screwed to the corresponding screw joint on the first branch pipe 41; the connecting pipe 23 is screwed to the corresponding screw joint on the second branch pipe 42; solenoid valves are provided near the end of the delivery pipe 40 and on the first branch pipe 41 and the second branch pipe 42; a controller 45 is installed on the side of the sewage treatment tank 1; the output end of the controller 45 is electrically connected to the servo motor 27, the solenoid valve and the compressed air pump 39 respectively.

[0051] Working principle of the third embodiment: By controlling the opening of the solenoid valve on the first branch pipe 41 and the start of the compressed air pump 39, the compressed air enters the rubber strip 7 set in the hollow structure through the first branch pipe 41, the air inlet pipe 38 and the air delivery pipe 37, and is discharged into the wastewater through the corresponding exhaust pipe 9, thereby achieving aeration treatment of the wastewater, increasing the oxygen content of the wastewater, and thus improving the treatment effect of the sewage; by setting a one-way valve on the exhaust pipe 9, the wastewater cannot flow back into the rubber strip 7.

[0052] By controlling the opening of the solenoid valve on the second branch pipe 42 and simultaneously controlling the start of the compressed air pump 39, the compressed air enters the interior of the winding roller 4 through the second branch pipe 42 and the connecting pipe 23, and enters the corresponding spiral cavity through the air vent 28, so that the wound hydrophilic strip biofilm 8 is air-dried, thereby improving the dehydration efficiency of the hydrophilic strip biofilm 8 and facilitating its winding, recycling and subsequent processing.

[0053] In the above process, before starting the compressed air pump 39 , ensure that the servo motor 27 is in the off state, and then screw the corresponding screw joints to the corresponding solenoid valves on the air inlet pipe 38 , the connecting pipe 23 and the delivery pipe 40 .

[0054] For example 4, please refer to Figure 1-16 The fourth embodiment makes the following improvements on the basis of the first embodiment. Specifically, a plurality of air guide tubes 46 are evenly fixed between the inner walls of the sewage treatment tank 1; a plurality of communication holes are evenly opened on the side surfaces of the air guide tubes 46; a plurality of annular air bags 47 connected to the corresponding communication holes are evenly fixed on the side surfaces of the air guide tubes 46; one end of each air guide tube 46 is sealed, and the other end thereof is screwed to the corresponding screw joint on the delivery pipe 40.

[0055] Guide grooves 48 are evenly and symmetrically provided on the inner wall of the sewage treatment tank 1; connecting rods 49 are slidably provided on the inner wall of the guide grooves 48; a stop roller 50 is fixed between the two opposite connecting rods 49; a connecting head 51 is fixed to the end of the connecting rod 49; a number of square columns 52 are evenly fixed on the side of the sewage treatment tank 1; a sliding sleeve 53 is slidably provided on the square column 52; a socket 54 that is plugged into the connecting head 51 is fixed at the end of the sliding sleeve 53; a tension spring 55 mounted on the square column 52 is fixedly connected between the sewage treatment tank 1 and the corresponding sliding sleeve 53.

[0056] Working principle of the fourth embodiment: Before the biofilm treatment part 2 is installed, the blocking roller 50 is away from the air duct 46. After the biofilm treatment part 2 is installed, the hydrophilic strip biofilm 8 is released, so that the hydrophilic strip biofilm 8 passes between the blocking roller 50 and the air duct 46, and then the stud 58 at the bottom of the push rod 15 is screwed into the internal threaded sleeve 11 until the top of the push rod 15 is received in the external threaded sleeve 13, and the nut is tightened.

[0057] When the roller 50 is in a position to move, the roller 50 is pulled back so that it contacts one side of the roller 50, and the sleeve 53 is pulled away from the sewage treatment tank 1. The tension spring 55 is stretched and the sleeve 53 is released. When the connector 51 and the socket 54 are coaxially arranged, the sleeve 53 is released and the socket 54 is inserted into the connector 51 under the elastic restoring force of the tension spring 55, completing the limit of the roller 50. At this time, the solenoid valve at the end of the delivery pipe 40 is controlled to open and the compressed air pump 39 is started at the same time. The compressed air passes through the delivery pipe 40, the air guide pipe 46 and the connecting hole, so that the annular airbag 47 is inflated and expanded, pressing the corresponding hydrophilic strip biofilm 8 against the roller 50. As the reel roller 4 reels the hydrophilic strip biofilm 8, most of the water inside the hydrophilic strip biofilm 8 is squeezed out, reducing the weight of the hydrophilic strip biofilm 8, which is convenient for reeling, recycling and subsequent treatment.

[0058] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0059] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0060] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0061] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

[0062] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A sewage treatment system for environmental engineering, comprising a sewage treatment tank (1); characterized in that: The top of the sewage treatment tank (1) is evenly connected with a plurality of biofilm treatment parts (2); The biofilm treatment part (2) includes a winding frame (3); the winding frame (3) includes a winding roller (4); a plurality of rubber belts (5) are uniformly wound on the side surface of the winding roller (4) along its axial direction; a snap-fit ​​groove (6) is provided on the surface of the rubber belt (5), and a rubber strip (7) adapted to the snap-fit ​​groove (6) is fixed on the back of the rubber belt (5); a hydrophilic strip biofilm (8) is adapted to be connected between two adjacent rubber belts (5); The rubber strip (7) is a hollow structure, and an exhaust pipe (9) is fixed to its bottom; a one-way valve is provided on the exhaust pipe (9); a counterweight lifting plate (10) is fixed between each exhaust pipe (9); an internal threaded sleeve (11) is symmetrically fixed on the surface of the counterweight lifting plate (10); A plurality of baffles (12) are evenly fixed on the top of the sewage treatment tank (1); an externally threaded sleeve (13) is symmetrically fixed on the surface of the baffle (12); a guide hole (14) is provided on the inner bottom surface of the externally threaded sleeve (13); a push rod (15) is slidably arranged in the guide hole (14); a stud (58) screwed to the internally threaded sleeve (11) is fixed to the bottom of the push rod (15); the push rod (15) is slidably engaged with the guide hole (14); a nut is screwed to the top of the externally threaded sleeve (13).

2. The sewage treatment system for environmental engineering according to claim 1, characterized in that: A first cloth belt (16) is fixed to the back of the rubber belt (5); a first sprocket group (17) is provided on the first cloth belt (16); a second cloth belt (18) is symmetrically fixed to the side of the hydrophilic strip biofilm (8); a second sprocket group (19) is provided on the second cloth belt (18); a pull head (20) is meshed with the first sprocket group (17) and the adjacent second sprocket group (19); and stop heads (21) are provided at both ends of the first cloth belt (16).

3. The sewage treatment system for environmental engineering according to claim 2, characterized in that: A rotating shaft (22) and a connecting pipe (23) are fixed to both ends of the winding roller (4); the winding frame (3) further comprises two sets of baffles (24) respectively penetrating and rotating with the rotating shaft (22) and the connecting pipe (23); an ear plate (25) is fixed to the side of the baffle (24); a vertical plate (26) is fixed to the surface of one of the ear plates (25); a servo motor (27) is fixed to the side of the vertical plate (26); an output end of the servo motor (27) is fixedly connected to one end of the rotating shaft (22).

4. The sewage treatment system for environmental engineering according to claim 3, characterized in that: The rubber strip (7) and the hydrophilic strip biofilm (8) in the rolled-up state form a plurality of spiral cavities; the interior of the winding roller (4) is a hollow structure, and a plurality of air holes (28) are evenly provided on the peripheral side surface thereof; a discharge port is provided on the peripheral side surface of the winding roller (4); a sealing cover is fixedly installed on the discharge port by fastening bolts; a sewage inlet pipe (56) is provided on the side surface of the sewage treatment tank (1) near its top, and a discharge pipe is provided on the other opposite side surface near its bottom.

5. The sewage treatment system for environmental engineering according to claim 4, characterized in that: A vertical guide plate (29) is fixed to the side of the ear plate (25); an oblique guide plate (30) is fixed to the bottom of the vertical guide plate (29); a plurality of support plates (31) are symmetrically fixed to the top of the sewage treatment tank (1); a plurality of chute grooves (32) are symmetrically opened on the top of the sewage treatment tank (1); a T-shaped plate (33) is slidably arranged inside the chute (32); a plurality of plug rods (34) are evenly fixed to the side of the T-shaped plate (33); the plug rods (34) and the support plate (31) slide through each other; a return spring (35) sleeved on the corresponding plug rod (34) is fixed between the T-shaped plate (33) and the support plate (31); a ball head (36) is fixed to the end of the plug rod (34); and a socket (57) for plugging and matching with the corresponding plug rod (34) is evenly opened on the side of the vertical guide plate (29).

6. The sewage treatment system for environmental engineering according to claim 5, characterized in that: An air delivery pipe (37) is provided between adjacent rubber strips (7); an air inlet pipe (38) is provided on the side of the baffle (24) and is fixedly connected to the air delivery pipe (37); a compressed air pump (39) is fixedly installed on the side of the sewage treatment tank (1); a delivery pipe (40) is fixed to the output end of the compressed air pump (39); a first branch pipe (41) and a second branch pipe (42) are provided on the side of the delivery pipe (40) in sequence; the first branch pipe (41), the second branch pipe (42) and the end of the delivery pipe (40) are all provided with an air disc (43); and a plurality of ear tubes (44) are evenly provided on the side of the air disc (43).

7. The sewage treatment system for environmental engineering according to claim 6, characterized in that: The ends of the ear tubes (44) are connected to screw joints via hoses; the air inlet pipe (38) is screwed to the corresponding screw joints on the first branch pipe (41); the connecting pipe (23) is screwed to the corresponding screw joints on the second branch pipe (42); solenoid valves are provided near the ends of the delivery pipe (40) and on the first branch pipe (41) and the second branch pipe (42); a controller (45) is installed on the side of the sewage treatment tank (1); the output end of the controller (45) is electrically connected to the servo motor (27), the solenoid valve and the compressed air pump (39), respectively.

8. The sewage treatment system for environmental engineering according to claim 7, characterized in that: A plurality of air guide tubes (46) are evenly fixed between the inner walls of the sewage treatment box (1); a plurality of communication holes are evenly opened on the side surfaces of the air guide tubes (46); a plurality of annular air bags (47) are evenly fixed on the side surfaces of the air guide tubes (46) and are connected to the corresponding communication holes; one end of each of the air guide tubes (46) is sealed, and the other end thereof is screwed to the corresponding screw joint on the delivery pipe (40); The inner wall of the sewage treatment box (1) is uniformly and symmetrically provided with guide grooves (48); a connecting rod (49) is slidably provided on the inner wall of the guide groove (48); a stop roller (50) is fixed between two opposite connecting rods (49); a connecting head (51) is fixed at the end of the connecting rod (49); a plurality of square columns (52) are uniformly fixed on the side of the sewage treatment box (1); a sliding sleeve (53) is slidably provided on the square column (52); a socket (54) that is plugged into and matched with the connecting head (51) is fixed at the end of the sliding sleeve (53); a tension spring (55) sleeved on the square column (52) is fixedly connected between the sewage treatment box (1) and the corresponding sliding sleeve (53).

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