Centrifugal sewage environment-friendly treatment device

Abstract

The invention relates to the technical field of sewage environment-friendly treatment devices, in particular to a centrifugal sewage environment-friendly treatment device which comprises a rack, a flow guide cover arranged in the rack, a rotary drum arranged in the flow guide cover and capable of rotating, a spiral conveying rod arranged in the rotary drum and capable of rotating and an extrusion mechanism arranged at the output end of the rotary drum. A conical extrusion part is arranged at one end of the rotary drum, and a conical discharge port is formed in one end, far away from the rotary drum, of the conical extrusion part; and the extrusion mechanism comprises a first fixing seat which is fixed to the output end of the rotary drum and can rotate around the center axis of the rotary drum, and a plurality of fixing rods are horizontally arranged on the side, away from the rotary drum, of the first fixing seat and arranged around the center axis of the first fixing seat at equal intervals. According to the device, redundant water in the impurities is effectively removed, and the problem that the water content in the impurities is large is solved.

Description

Technical Field

[0001] The invention relates to the technical field of environmentally friendly sewage treatment devices, and in particular to a centrifugal environmentally friendly sewage treatment device. Background Art

[0002] Horizontal centrifuge is a kind of treatment equipment commonly used in sewage treatment to quickly separate impurities in sewage. The strong centrifugal force generated by high-speed rotation is used to quickly separate solid particles and liquids in sewage. The equipment has a large processing capacity and can efficiently cope with large-scale sewage treatment needs; it has a good separation effect and can accurately separate suspended matter, sludge and other impurities of different particle sizes to improve the effluent water quality. The horizontal centrifuge has a compact structure, small footprint, and is easy to install and layout. It has stable operation and a high degree of automation, which can reduce manual intervention and operation intensity. In addition, maintenance is relatively simple, which can reduce long-term use costs. In the treatment of municipal sewage and industrial wastewater, it is a key tool to ensure that sewage meets discharge standards and achieve resource recycling.

[0003] The patent document with the Chinese announcement number CN117019418B discloses a horizontal spiral sedimentation centrifuge, including: a frame; a drum, a feed pipe is coaxially arranged inside the drum, and the drum is fixedly connected with a collecting pipe and a liquid outlet pipe; a discharge pipe is fixedly connected to the feed cavity and arranged inside the drum; a first connecting rod is fixedly connected to the outer wall of the feed pipe, and the connecting pipe is fixedly connected with a spiral blade; a control pipe is slidably connected to the discharge pipe, the control pipe is fixedly connected with a baffle, and the bottom of the baffle is fixedly connected with a reset spring; an adjustment mechanism is arranged on the control pipe, and the baffle can be adjusted to move upward when the feed is too much. The application has the effect of improving work efficiency.

[0004] The horizontal spiral sedimentation centrifuge in the above patent document connects the sewage pipe to the feed chamber so that the sewage enters the drum through the feed chamber. The drum rotates under the drive of the motor. At this time, the drum rotates and drives the sewage to rotate synchronously, so that the impurities in the sewage are close to the inner wall of the drum. The first connecting rod is then used to drive the spiral blade to rotate, so that the spiral blade pushes the impurities on the inner wall of the drum into the collecting pipe, and the impurities enter the second collecting pipe through the collecting pipe and are finally discharged through the second collecting pipe. However, while the above spiral blades are transporting impurities, the spiral blades will drive the impurities and sewage to move synchronously to the collecting pipe, so that a certain amount of sewage will remain in the impurities, and the water content of the impurities is relatively large. Moreover, the impurities are easy to adhere to the inner wall of the second collecting pipe, so that the impurities accumulate in the second collecting pipe, resulting in the impurities cannot be quickly discharged from the second collecting pipe. Therefore, a centrifugal sewage environmental protection treatment device is proposed to solve the above problems. Summary of the invention

[0005] In view of the above problems, a centrifugal sewage environmental protection treatment device is provided. Through the pushing force of the spiral conveyor rod and the cooperation of the conical extrusion part, the impurities are gradually compacted, and the water in the impurities is extruded out and enters the inside of the diversion cover through the conical extrusion part. When the impurities accumulate in the conical extrusion part, as the pressure in the conical extrusion part gradually increases, the impurities will push the annular extrusion block to slowly separate from the conical discharge port. At this time, the impurities will be discharged through the gap between the annular extrusion block and the conical discharge port. It realizes the effective removal of the excess water in the impurities and solves the problem of large water content in the impurities.

[0006] To solve the problems of the prior art, the present invention provides a centrifugal sewage environmental protection treatment device, including a frame, a diversion cover arranged inside the frame, a rotating drum arranged inside the diversion cover and capable of rotating, a spiral conveyor rod arranged inside the rotating drum and capable of rotating, and an extrusion mechanism arranged at the output end of the rotating drum. One end of the rotating drum is provided with a conical extrusion part, and one end of the conical extrusion part far from the rotating drum is provided with a conical discharge port; The extrusion mechanism includes a first fixed seat fixed at the output end of the rotating drum and capable of rotating around its central axis. A plurality of fixed rods are horizontally arranged on the side of the first fixed seat far from the rotating drum, and the fixed rods are equidistantly arranged around the central axis of the first fixed seat; An annular extrusion block is arranged beside the first fixed seat. The central axis of the annular extrusion block is coaxially arranged with the central axis of the first fixed seat. Limiting holes capable of corresponding to the fixed rods one by one are equidistantly opened on the outer circumferential surface of the annular extrusion block, and the limiting holes are slidably installed on the fixed rods; An adjusting seat is installed on the side of the fixed rod close to the annular extrusion block. A pushing spring capable of pushing the annular extrusion block into the inside of the conical discharge port is sleeved on the side of the adjusting seat facing the annular extrusion block; The outer circumference of the spiral conveyor rod is in contact with the inner wall of the rotating drum.

[0007] As a technical solution of the present invention, a solid waste tank for preventing impurity splashing is opened inside one end of the diversion cover, and a discharge pipe is vertically installed downward at the bottom of one end of the diversion cover. The discharge pipe is communicated with the inside of the solid waste tank; Arc-shaped scraping plates for cleaning the inner wall of the solid waste tank are equidistantly arranged around the central axis on the outer circumference of the first fixed seat, and one side of the arc-shaped scraping plates is in contact with the inner wall of the solid waste tank.

[0008] As a technical solution of the present invention, a liquid inlet cavity is horizontally opened inside one end of the spiral conveyor rod; A second fixed seat is sleeved outside one end of the spiral conveyor rod. One side of the second fixed seat is fixed on the outer wall of one end of the diversion cover, and the second fixed seat is rotationally and sealingly arranged with the spiral conveyor rod; A liquid inlet pipe communicated with the liquid inlet cavity is fixed on the other side of the second fixed seat; The liquid outlet that can communicate with the liquid inlet cavity is provided on the spiral conveying rod.

[0009] As a technical solution of the present invention, a medicine delivery pipe for conveying the flocculating agent into the liquid inlet cavity is horizontally installed inside the liquid inlet cavity, and the input end of the medicine delivery pipe is fixed on the second fixing seat and extends out of the inside of the second fixing seat; One end of the medicine delivery pipe away from the second fixing seat is rotatably arranged inside the liquid inlet cavity; The first spiral blade for mixing the flocculating liquid and the sewage is arranged on the inner wall of the liquid inlet cavity.

[0010] As a technical solution of the present invention, an annular limiting seat is fixed outside one end of the spiral conveying rod away from the liquid inlet cavity; The drum includes a sealing end cover fixed at one end away from the conical discharge port. An annular limiting groove that can be adapted to the annular limiting seat is provided inside the sealing end cover, and the annular limiting groove is in sliding fit with the annular limiting seat.

[0011] As a technical solution of the present invention, a vertically downward drain pipe is fixed on the outer wall of one end of the flow guide cover away from the discharge pipe.

[0012] As a technical solution of the present invention, an arc-shaped pressing plate is installed at the top of one end of the flow guide cover away from the solid waste tank, and the bottom of the arc-shaped pressing plate is fixedly arranged on the top of the frame.

[0013] As a technical solution of the present invention, a protective cover for protecting the flow guide cover is installed on the top of the frame, and the bottom of the protective cover is fixed on the top of the frame.

[0014] As a technical solution of the present invention, a first installation groove for placing the drum is provided on the top of the frame, and a rotatable first roller is equidistantly installed around its central axis inside the first installation groove; A second installation groove is provided at the bottom of the protective cover, and a rotatable second roller is equidistantly installed around its central axis inside the second installation groove. The outer circumference of the second roller is in contact with the outer wall of the sealing end cover.

[0015] The beneficial effects of the present invention compared with the prior art are as follows: 1. In this application, the pushing force of the spiral conveying rod and the cooperation of the conical extrusion part make the impurities gradually compacted. The water in the impurities is extruded out and enters the inside of the flow guide cover through the conical extrusion part. When the impurities accumulate in the conical extrusion part, as the pressure in the conical extrusion part gradually increases, the impurities will push the annular extrusion block to slowly separate from the conical discharge port. At this time, the impurities will be discharged through the gap between the annular extrusion block and the conical discharge port. The effective removal of the excess water in the impurities is realized. The problem of large water content in the impurities is solved.

[0016] 2. This application uses a rotating drum to drive the first fixed seat to rotate synchronously. The first fixed seat drives the arc-shaped scraping wall plate to rotate synchronously, so that while the arc-shaped scraping wall plate rotates around the central axis of the first fixed seat, it scrapes the impurities adhering to the inner wall of the solid waste tank. When the arc-shaped scraping wall plate drives the impurities past the top of the discharge pipe, the impurities will enter the discharge pipe under the action of centrifugal force and their own gravity, so that the impurities are smoothly discharged through the discharge pipe. This avoids impurities adhering to the inner wall of the solid waste tank and solves the problem that impurities accumulate inside the solid waste tank, resulting in the inability to quickly discharge the impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional view of a centrifugal sewage environmental protection treatment device.

[0018] Figure 2 is an exploded view of a centrifugal sewage environmental protection treatment device.

[0019] Figure 3 is a top view of a centrifugal sewage environmental protection treatment device.

[0020] Figure 4 is Figure 2 the cross-sectional view at A-A in

[0021] Figure 5 is a three-dimensional view of a deflector in a centrifugal sewage environmental protection treatment device.

[0022] Figure 6 is a three-dimensional view of an extrusion mechanism in a centrifugal sewage environmental protection treatment device.

[0023] Figure 7 is an exploded view of an extrusion mechanism in a centrifugal sewage environmental protection treatment device.

[0024] Figure 8 is a three-dimensional view of a spiral conveyor rod in a centrifugal sewage environmental protection treatment device.

[0025] Figure 9 is an exploded view of a rotating drum in a centrifugal sewage environmental protection treatment device.

[0026] Figure 10 is Figure 2 the enlarged structural schematic diagram at B in

[0027] Figure 11 is Figure 4 the enlarged structural schematic diagram at C in

[0028] Figure 12 is Figure 4 the enlarged structural schematic diagram at D in

[0029] The reference numerals in the figure are: 1. Frame; 11. First reduction motor assembly; 12. Second reduction motor assembly; 13. First installation groove; 14. First roller; 2. Protective cover; 21. Second installation groove; 22. Second roller; 3. Deflector; 31. Solid waste tank; 32. Drain pipe; 33. Discharge pipe; 4. Drum; 41. Conical discharge port; 42. Sealing end cover; 43. Annular limit groove; 44. Conical extrusion part; 5. Screw conveyor rod; 51. Liquid inlet cavity; 52. First spiral blade; 53. Liquid outlet; 54. Annular limit seat; 6. Extrusion mechanism; 61. First fixed seat; 611. Arc-shaped scraping wall plate; 612. Fixed rod; 62. Annular extrusion block; 621. Limit hole; 63. Adjusting seat; 64. Push spring; 7. Second fixed seat; 71. Drug delivery pipe; 8. Liquid inlet pipe; 9. Arc-shaped pressing plate. Detailed implementation mode

[0030] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be described in further detail below in conjunction with the drawings and specific implementation modes.

[0031] See Figure 1 - Figure 12 As shown, a centrifugal sewage environmental protection treatment device includes a frame 1, a deflector 3 arranged inside the frame 1, a drum 4 that can rotate inside the deflector 3, a screw conveyor rod 5 that can rotate inside the drum 4, and an extrusion mechanism 6 arranged at the output end of the drum 4. One end of the drum 4 is provided with a conical extrusion part 44, and a conical discharge port 41 is arranged at the end of the conical extrusion part 44 away from the drum 4; The extrusion mechanism 6 includes a first fixed seat 61 fixed at the output end of the drum 4 and capable of rotating around its central axis. A plurality of fixed rods 612 are horizontally arranged on the side of the first fixed seat 61 away from the drum 4, and the fixed rods 612 are equidistantly arranged around the central axis of the first fixed seat 61; An annular extrusion block 62 is arranged beside the first fixed seat 61. The central axis of the annular extrusion block 62 is coaxial with the central axis of the first fixed seat 61. Limit holes 621 that can correspond to the fixed rods 612 one by one are equidistantly opened on the outer circumferential surface of the annular extrusion block 62, and the limit holes 621 are slidably installed on the fixed rods 612; An adjusting seat 63 is installed on the fixed rod 612 beside the annular extrusion block 62. A push spring 64 that can push the annular extrusion block 62 into the conical discharge port 41 is sleeved on the side of the adjusting seat 63 facing the annular extrusion block 62; The outer circumference of the spiral conveying rod 5 contacts the inner wall of the rotary drum 4.

[0032] At the bottom of one end of the frame 1, a first reduction motor assembly 11 for driving the rotary drum 4 to rotate is fixed, and the output end of the first reduction motor assembly 11 is fixedly connected to one end of the rotary drum 4. At the top of one end of the frame 1 near the first reduction motor assembly 11, a second reduction motor assembly 12 for driving the spiral conveying rod 5 to rotate is fixed, and the output end of the second reduction motor assembly 12 is fixedly connected to one end of the spiral conveying rod 5. When the processing device works, by starting the first reduction motor assembly 11 and the second reduction motor assembly 12, the first reduction motor assembly 11 and the second reduction motor assembly 12 drive the corresponding rotary drum 4 and the spiral conveying rod 5 to rotate respectively. When the first reduction motor assembly 11 drives the rotary drum 4 to rotate, the rotary drum 4 can drive the sewage inside it to rotate synchronously. At this time, the impurities in the sewage adhere to the inner wall of the rotary drum 4 under the action of the centrifugal force of the rotary drum 4, and the sewage then passes through the rotary drum 4 and enters the inside of the guide cover 3. At the same time, the second reduction motor assembly 12 drives the spiral conveying rod 5 to rotate. Using the idle speed difference between the spiral conveying rod 5 and the rotary drum 4, the spiral conveying rod 5 can push the impurities on the inner wall of the rotary drum 4 to gradually move towards the conical discharge port 41 while rotating. When the impurities move close to the conical discharge port 41, the impurities are blocked by the annular extrusion block 62 and gradually accumulate in the conical extrusion part 44. At this time, the impurities are gradually compacted under the cooperation of the pushing force of the spiral conveying rod 5 and the conical extrusion part 44, so that the water in the impurities is squeezed out and passes through the conical extrusion part 44 and enters the inside of the guide cover 3. When the impurities accumulate in the conical extrusion part 44, the pressure in the conical extrusion part 44 gradually increases, and the impurities will push the annular extrusion block 62 to slowly separate from the conical discharge port 41. At this time, the impurities will be discharged through the gap between the annular extrusion block 62 and the conical discharge port 41. The excess water in the impurities is effectively removed. The problem of large water content in the impurities is solved. When the impurities push the annular extrusion block 62, the annular extrusion block 62 will slide along the fixed rod 612 through the limit hole 621, ensuring the stability of the annular extrusion block 62 and avoiding the deviation of the annular extrusion block 62 when the extrusion force is uneven. When the annular extrusion block 62 moves, it will squeeze the pushing spring 64, so that the annular extrusion block 62 maintains sufficient thrust under the reaction force of the pushing spring 64, avoiding insufficient thrust of the annular extrusion block 62 resulting in large water content in the impurities or excessive thrust of the annular extrusion block 62 resulting in the inability of the impurities inside the conical extrusion part 44 to be discharged smoothly.

[0033] Please refer particularly to Figure 4 、 Figure 7 and Figure 12 , inside one end of the guide cover 3, a solid waste tank 31 for preventing impurity splashing is provided, and a discharge pipe 33 is vertically installed downward at the bottom of one end of the guide cover 3. The discharge pipe 33 is communicated with the inside of the solid waste tank 31; On the outer circumference of the first fixed seat 61, arc-shaped scraping plates 611 for cleaning the inner wall of the solid waste tank 31 are equidistantly arranged around its central axis, and one side of the arc-shaped scraping plate 611 is in contact with the inner wall of the solid waste tank 31.

[0034] When the drum 4 rotates, the drum 4 can drive the first fixed seat 61 to rotate synchronously. At this time, the first fixed seat 61 will drive the arc-shaped scraping plate 611 to rotate synchronously, so that while the arc-shaped scraping plate 611 rotates around the central axis of the first fixed seat 61, it can scrape off the impurities adhering to the inner wall of the solid waste tank 31. During the process of the arc-shaped scraping plate 611 cleaning the impurities adhering to the inner wall of the solid waste tank 31, the impurities roll along the inner arc surface of the arc-shaped scraping plate 611, effectively avoiding the accumulation of impurities on one side of the arc-shaped scraping plate 611, resulting in the impurities crossing over the arc-shaped scraping plate 611, thereby improving the cleaning efficiency of the arc-shaped scraping plate 611. When the arc-shaped scraping plate 611 drives the impurities past the top of the discharge pipe 33, the impurities will enter the discharge pipe 33 under the action of centrifugal force and their own gravity, so that the impurities can be smoothly discharged through the discharge pipe 33.

[0035] See Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 12 As shown in, a liquid inlet cavity 51 is horizontally opened inside one end of the screw conveyor rod 5; A second fixed seat 7 is sleeved outside one end of the screw conveyor rod 5, one side of the second fixed seat 7 is fixed on the outer wall of one end of the diversion cover 3, and the second fixed seat 7 is rotatably and sealingly arranged with the screw conveyor rod 5; On the other side of the second fixed seat 7, a liquid inlet pipe 8 communicated with the liquid inlet cavity 51 is fixed; The screw conveyor rod 5 is provided with a liquid outlet 53 that can communicate with the liquid inlet cavity 51.

[0036] The sewage is conveyed into the liquid inlet cavity 51 through the liquid inlet pipe 8, and then the rotation of the screw conveyor rod 5 is used to drive the sewage inside the liquid inlet cavity 51 to rotate synchronously, so that the sewage is discharged into the inside of the drum 4 through the liquid outlet 53 opened on the screw conveyor rod 5, so that the drum 4 separates the impurities in the sewage.

[0037] Please refer specifically to Figure 12 As shown in, a medicine feeding pipe 71 for conveying the flocculation agent into it is horizontally installed inside the liquid inlet cavity 51, and the input end of the medicine feeding pipe 71 is fixed on the second fixed seat 7 and extends out of the inside of the second fixed seat 7; One end of the medicine feeding pipe 71 away from the second fixed seat 7 is rotatably arranged inside the liquid inlet cavity 51; On the inner wall of the liquid inlet cavity 51, a first spiral blade 52 for mixing the flocculation liquid and the sewage is provided.

[0038] The flocculant is transported into the liquid inlet chamber 51 by the dosing pipe 71. Then, by the rotation of the screw conveyor rod 5, the screw conveyor rod 5 drives the first screw blade 52 on the inner wall of the liquid inlet chamber 51 to rotate synchronously, so as to mix the sewage and the flocculant inside the liquid inlet chamber 51. The full mixing of the sewage and the flocculant is realized, and the problem that the flocculant and the sewage cannot be evenly mixed is solved.

[0039] Please refer particularly to Figure 9 and Figure 11 As shown, an annular limit seat 54 is fixed to the outside of the end of the screw conveyor rod 5 away from the liquid inlet chamber 51; The drum 4 includes a sealing end cover 42 fixed to the end of the drum 4 away from the conical discharge port 41. An annular limit groove 43 adapted to the annular limit seat 54 is provided inside the sealing end cover 42, and the annular limit groove 43 is in sliding fit with the annular limit seat 54.

[0040] One end of the drum 4 is sealed by the sealing end cover 42, effectively preventing the sewage from overflowing from the other end of the drum 4 when the sewage level is high. To ensure the stability of the drum 4, an annular limit groove 43 adapted to the annular limit seat 54 is provided inside the sealing end cover 42. When the first reduction motor assembly 11 drives the drum 4 to rotate through the sealing end cover 42, the sealing end cover 42 can rotate along the annular limit seat 54. The displacement of the drum 4 and the screw conveyor rod 5 during rotation is effectively avoided. Furthermore, the stability of the drum 4 and the screw conveyor rod 5 is ensured.

[0041] Please refer particularly to Figure 4 and Figure 5 As shown, a vertically downward drain pipe 32 is fixed to the outer wall of the end of the flow guide cover 3 away from the discharge pipe 33.

[0042] By fixing the drain pipe 32 to the bottom of the end of the flow guide cover 3 away from the discharge pipe 33, the drain pipe 32 can discharge the sewage separated inside the flow guide cover 3. The accumulation of sewage inside the flow guide cover 3 is effectively avoided.

[0043] Please refer particularly to Figure 10 and Figure 11 As shown, an arc-shaped pressing plate 9 is installed at the top of the end of the flow guide cover 3 away from the solid waste tank 31, and the bottom of the arc-shaped pressing plate 9 is fixedly arranged at the top of the frame 1.

[0044] To ensure the stability of the flow guide cover 3, an arc-shaped pressing plate 9 is installed at the top of the end of the flow guide cover 3 away from the solid waste tank 31, and then the bottom of the arc-shaped pressing plate 9 is fixedly arranged at the top of the frame 1, so that the inner circumference of the arc-shaped pressing plate 9 is in close contact with the outside of the flow guide cover 3, thereby fixing the flow guide cover 3 by the arc-shaped pressing plate 9 and ensuring the stability of the flow guide cover 3.

[0045] Please refer particularly to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a protective cover 2 for protecting the fairing 3 is installed on the top of the frame 1, and the bottom of the protective cover 2 is fixed to the top of the frame 1.

[0046] By fixing the protective cover 2 to the top of the frame 1, the protective cover 2 protects the fairing 3 from being damaged by external collisions, thereby increasing the service life of the fairing 3.

[0047] Please refer particularly to Figure 10 and Figure 11 As shown, a first installation groove 13 for placing the drum 4 is provided on the top of the frame 1, and a rotatable first roller 14 is installed equidistantly around its central axis inside the first installation groove 13; A second installation groove 21 is provided at the bottom of the protective cover 2, and rotatable second rollers 22 are installed equidistantly around its central axis inside the second installation groove 21, and the outer circumference of the second rollers 22 contacts the outer wall of the sealing end cover 42.

[0048] When the drum 4 is placed inside the frame 1, the bottom of the sealing end cover 42 at one end of the drum 4 is placed on the top of the first roller 14. When the protective cover 2 is fixed to the top of the frame 1, the second rollers 22 installed inside the second installation groove 21 press down on the outer wall of the sealing end cover 42. This avoids the sealing end cover 42 directly contacting the frame 1 and the protective cover 2, effectively preventing wear of the sealing end cover 42.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A centrifugal sewage environmental protection treatment device, comprising a frame (1), a guide cover (3) arranged inside the frame (1), a rotating drum (4) arranged inside the guide cover (3) and capable of rotating, a spiral conveyor rod (5) arranged inside the rotating drum (4) and capable of rotating, and an extrusion mechanism (6) arranged at the output end of the rotating drum (4), characterized in that, One end of the drum (4) is provided with a conical extrusion part (44), and one end of the conical extrusion part (44) far away from the drum (4) is provided with a conical discharge port (41); The extrusion mechanism (6) includes a first fixed seat (61) fixed at the output end of the drum (4) and capable of rotating around its central axis. A plurality of fixing rods (612) are horizontally arranged on one side of the first fixed seat (61) far away from the drum (4), and the fixing rods (612) are equidistantly arranged around the central axis of the first fixed seat (61); An annular extrusion block (62) is arranged beside the first fixed seat (61). The central axis of the annular extrusion block (62) is coaxial with the central axis of the first fixed seat (61). Limiting holes (621) capable of corresponding to the fixing rods (612) one by one are equidistantly arranged on the outer circumferential surface of the annular extrusion block (62), and the limiting holes (621) are slidably installed on the fixing rods (612); An adjusting seat (63) is installed beside the fixing rod (612) close to the annular extrusion block (62). A pushing spring (64) capable of pushing the annular extrusion block (62) into the conical discharge port (41) is sleeved on one side of the adjusting seat (63) facing the annular extrusion block (62); The outer circumference of the screw conveyor rod (5) contacts the inner wall of the drum (4).

2. The centrifugal sewage environmental protection treatment device according to claim 1, characterized in that, A solid waste tank (31) for preventing impurities from splashing is arranged inside one end of the flow guide cover (3). A discharge pipe (33) is vertically installed downward at the bottom of one end of the flow guide cover (3), and the discharge pipe (33) is internally communicated with the solid waste tank (31); Arc-shaped scraping plates (611) for cleaning the inner wall of the solid waste tank (31) are equidistantly arranged on the outer circumference of the first fixed seat (61) around its central axis, and one side of the arc-shaped scraping plates (611) contacts the inner wall of the solid waste tank (31).

3. The centrifugal sewage environmental protection treatment device according to claim 1, characterized in that, A liquid inlet cavity (51) is horizontally arranged inside one end of the screw conveyor rod (5); A second fixed seat (7) is sleeved outside one end of the screw conveyor rod (5). One side of the second fixed seat (7) is fixed on the outer wall of one end of the flow guide cover (3), and the second fixed seat (7) is rotationally and sealingly arranged with the screw conveyor rod (5); A liquid inlet pipe (8) communicated with the liquid inlet cavity (51) is fixed on the other side of the second fixed seat (7); A liquid outlet (53) capable of being communicated with the liquid inlet cavity (51) is arranged on the screw conveyor rod (5).

4. The centrifugal sewage environmental protection treatment device according to claim 3, characterized in that, A medicine feeding pipe (71) for conveying a flocculating agent into the liquid inlet cavity (51) is horizontally installed inside the liquid inlet cavity (51). The input end of the medicine feeding pipe (71) is fixed on the second fixed seat (7) and extends out of the inside of the second fixed seat (7); One end of the medicine feeding pipe (71) far away from the second fixed seat (7) is rotatably arranged inside the liquid inlet cavity (51); A first spiral blade (52) for mixing the flocculating liquid and the sewage is arranged on the inner wall of the liquid inlet cavity (51).

5. The centrifugal sewage environmental protection treatment device according to claim 1, characterized in that, An annular limiting seat (54) is fixed outside one end of the screw conveyor rod (5) far away from the liquid inlet cavity (51); The drum (4) includes a sealing end cover (42) fixed to one end away from the conical discharge port (41). An annular limiting groove (43) adapted to the annular limiting seat (54) is formed inside the sealing end cover (42), and the annular limiting groove (43) is in sliding fit with the annular limiting seat (54).

6. The centrifugal sewage environmental protection treatment device according to claim 1, characterized in that, A vertically downward drain pipe (32) is fixed to the outer wall of one end of the flow guide cover (3) away from the drain pipe (33).

7. The centrifugal sewage environmental protection treatment device according to claim 1, characterized in that, An arc-shaped pressing plate (9) is installed at the top of one end of the flow guide cover (3) away from the solid waste tank (31), and the bottom of the arc-shaped pressing plate (9) is fixedly arranged at the top of the frame (1).

8. The centrifugal sewage environmental protection treatment device according to claim 1, characterized in that, A protective cover (2) for protecting the flow guide cover (3) is installed at the top of the frame (1), and the bottom of the protective cover (2) is fixed to the top of the frame (1).

9. The centrifugal sewage environmental protection treatment device according to claim 8, characterized in that, A first installation groove (13) for placing the drum (4) is formed at the top of the frame (1), and rotatable first rollers (14) are equidistantly installed around its central axis inside the first installation groove (13); A second installation groove (21) is formed at the bottom of the protective cover (2), and rotatable second rollers (22) are equidistantly installed around its central axis inside the second installation groove (21), and the outer circumference of the second roller (22) is in contact with the outer wall of the sealing end cover (42).

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