A screw extrusion type sludge dewatering treatment equipment

Abstract

The present invention discloses a screw extrusion type sludge dewatering treatment equipment, which belongs to the field of sludge dewatering treatment, including a base, a spiral shaft, a flow detector and a transmission belt. A feed port is provided at the top of one end of the base, a discharge pipe, a pressure plate and a cover are provided at the other end of the base, a guide assembly is provided at the top of the base, a mounting rod, a lamination assembly, a discharge slot and a limit strip are provided inside the base, a discharge worm is provided inside the discharge slot, the spiral shaft is located inside the lamination assembly, and the flow detector is located at the output end of the discharge slot. The present invention can monitor the flow rate of filtered water and adjust the rotation speed of the spiral shaft in time through the coordinated use of the flow detector and the servo motor, and can drive the fixed ring units to expand one by one from the output end to the input end of the base through the guide roller, and by providing a swing mechanism, the movement of the floating ring can assist in breaking the blocked sludge, so that it falls into the discharge slot and is discharged by the discharge worm, thereby reducing the difficulty of troubleshooting.

Description

Technical Field

[0001] The invention relates to the technical field of sludge dehydration treatment, in particular to a screw extrusion type sludge dehydration treatment equipment. Background Art

[0002] Mechanical sludge dehydration is an important part of the entire sludge treatment process. Its purpose is to enrich the solids, reduce the sludge volume, and create conditions for the final disposal of the sludge. Mechanical sludge dehydration usually uses screw extrusion sludge dehydration treatment equipment;

[0003] The screw extrusion sludge dewatering treatment equipment includes a screw stacking machine, in which a screw stacking body is formed by staggered stacking of fixed rings and movable rings. When the screw shaft pushes the sludge, the movable ring moves relative to the fixed ring, and the water in the sludge is filtered out from between the overlapping ring pieces by gravity.

[0004] When the existing spiral stacker processes sludge with high inorganic content or coarse particles and high specific gravity, the sludge with high inorganic content has a fast dehydration speed. Before leaving the spiral shaft filter chamber, the water content is already very low, resulting in the sludge cake being extremely lacking in fluidity, thus clogging in the dehydration section.

[0005] After the snail stacker is seriously blocked, it needs to be cleared. Because the snail stack contains a large number of densely arranged fixed rings and floating rings, it is impossible to disassemble and find the blockage location. As a result, the only way to clear the blockage is to disassemble the spiral shaft. The clearing process is cumbersome. At the same time, the snail stacker dehydrates by extrusion. The high inorganic content sludge in the blocked area has a high density due to extrusion. It is difficult to remove this sludge with a high-pressure water gun, making it difficult to clear the blockage.

[0006] Therefore, a screw extrusion type sludge dewatering treatment equipment is proposed to solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to solve the problem that the screw extrusion type sludge dewatering treatment equipment in the prior art is easy to be blocked and difficult to troubleshoot, and to propose a screw extrusion type sludge dewatering treatment equipment.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A screw extrusion type sludge dewatering treatment equipment, comprising a base, a spiral shaft, a flow detector and a transmission belt, a feed port is provided at the top of one end of the base, a discharge pipe and a pressure plate are provided at the other end of the base, a cover body is provided at the base corresponding to the discharge pipe and the pressure plate to block the mud cake, a guide assembly is provided at the top of the base, a mounting rod and a lamination assembly are provided at the corresponding guide assembly inside the base, the lamination assembly comprises a support ring, a swing mechanism, a floating ring and a fixed ring unit, locking pieces are provided at both sides of the bottom of the fixed ring unit, and limit strips are provided at both sides of the top of the fixed ring unit, a discharge groove is provided on the upper surface inside the base, a discharge worm is provided inside the bottom end of the discharge groove, a rotary motor is provided at the power input end of the discharge worm, a material output end of the discharge worm faces the rotary motor, the spiral shaft is located inside the lamination assembly for conveying sludge, the input end of the spiral shaft is connected to a servo motor through the cover body, and the flow detector is located at the output end of the discharge groove for monitoring the filtered water flow;

[0010] The guide assembly includes a frame, the frame matches the fixed ring unit, the two ends of the frame are fixedly connected to the top of the base, the bottom of the frame is fixedly connected to a pillar corresponding to the support ring, the bottom of the pillar is fixedly connected to the top of the two ends of the support ring, a plurality of guide rollers for driving the fixed ring unit to unfold are rotatably connected in the frame, the frame is fixedly connected to a guide motor at the guide roller corresponding to the guide motor, the outer wall of the guide roller close to one end of the guide motor is provided with bevel gears, and the output end of the guide motor is meshed with the guide roller through the bevel gears;

[0011] The swing mechanism comprises an upper swing arm and a lower swing arm, the two ends of the floating ring are fixedly connected to the upper swing arm and the lower swing arm, the upper swing arm is slidably connected to the base, and the two ends of the lower swing arm are provided with eccentric rotating shafts, and the input end of the eccentric rotating shaft passes through the base and is rotatably connected to the rotating motor;

[0012] The fixed ring unit includes a plurality of relatively arranged folding rods, grooved half rings and limiting half rings. The top of the folding rod is rotatably connected to the mounting rod, and the bottom of the folding rod is fixedly connected to the grooved half ring and the limiting half ring, so as to drive the grooved half ring and the limiting half ring to unfold. The grooved half ring and the limiting half ring are relatively arranged.

[0013] Preferably, vertical slide grooves are provided on both sides of the base corresponding to the upper rocking arm, and circular grooves for installing the swinging assembly are provided on both sides of the base corresponding to the lower rocking arm, which are used to support the swinging assembly to drive the floating ring to swing, and the base is open at the material output end corresponding to the discharge worm gear for discharging sewage and sludge.

[0014] Preferably, a plurality of guide tooth blocks are fixedly connected to the outer wall of the guide roller corresponding to the fixed ring unit, and the guide tooth blocks correspond to the folding rods and are used to guide the folding rods to unfold one by one.

[0015] Preferably, the outer wall of the eccentric shaft is rotatably connected to the circular groove, and the two ends of the eccentric shaft facing inward are rotatably connected to the lower rocking arm to drive the lower rocking arm to swing.

[0016] Preferably, the input end of the eccentric shaft is staggered from the power input end of the discharge worm, and both the input end of the eccentric shaft and the power input end of the discharge worm are connected to the rotating motor through a transmission belt. The rotating motor drives the discharge worm and the eccentric shaft to rotate at the same time, and the eccentric shaft drives the lower rocking arm to swing.

[0017] Preferably, a gear is provided at the top of the folding rod, and the folding rods are meshed and connected with each other through the gear at the top so that they can be unfolded synchronously. A limiting hole is provided on the surface of the folding rod, and mounting holes are provided at the corresponding grooved semi-ring and the limiting semi-ring of the folding rod.

[0018] Preferably, a plug is fixedly connected to the side of the limiting half ring facing the grooved half ring, and the plug is plugged into the grooved half ring to avoid misalignment after merging.

[0019] Preferably, the locking member is detachably connected to the base, and a limiting arc surface is provided on one side of the locking member facing the fixing ring unit. The shape of the limiting arc surface matches the grooved half ring and the limiting half ring, and is used to lock the fixing ring unit when folded.

[0020] Preferably, a plurality of limiting grooves matching the folding rod are provided at the bottom of the limiting strip, the shape of the limiting grooves matches the shape of the folding rod after unfolding, and positioning pins for locking the folding rod are installed at the corresponding limiting holes in the limiting grooves.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention can monitor the flow rate of filtered water to determine the water content of sludge by using a flow detector and a servo motor, and adjust the rotation speed of the spiral shaft in time according to the water content, thereby avoiding blockage or incomplete drying caused by common reasons.

[0023] 2. The present invention provides a guide assembly and a fixed ring unit. The guide roller can drive the fixed ring units to unfold one by one from the output end to the input end of the base, and lock them through a limit bar to open the stacking assembly. Workers can observe the internal conditions of the stacking assembly with the naked eye, which makes it easy to find the blockage location and troubleshoot without disassembling the spiral shaft, reducing the difficulty of troubleshooting and saving energy.

[0024] 3. The present invention provides a swing mechanism so that the floating ring and the discharge worm can still work normally when blockage occurs. The movement of the floating ring breaks up the sludge with higher density, causing it to fall into the discharge trough and be discharged by the discharge worm. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of a screw extrusion type sludge dewatering treatment equipment proposed by the present invention;

[0026] Figure 2 It is an assembly diagram of a screw extrusion type sludge dewatering treatment equipment proposed by the present invention;

[0027] Figure 3 This is a structural cross-sectional view of a base in a screw extrusion type sludge dewatering treatment device proposed by the present invention;

[0028] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0029] Figure 5 It is a structural schematic diagram of a lamination assembly in a folded state in a screw extrusion type sludge dewatering treatment device proposed by the present invention;

[0030] Figure 6 It is a structural schematic diagram of a lamination assembly in a screw extrusion type sludge dewatering treatment device proposed by the present invention in an unfolded state;

[0031] Figure 7 This is a structural schematic diagram of a swing mechanism and a floating ring in a screw extrusion type sludge dewatering treatment device proposed by the present invention;

[0032] Figure 8 This is a structural assembly diagram of a fixed ring unit in a screw extrusion type sludge dewatering treatment device proposed by the present invention;

[0033] Fig. 9 This is a schematic structural diagram of a grooved half ring and a limiting half ring in a screw extrusion type sludge dewatering treatment device proposed by the present invention;

[0034] Fig.10 This is a schematic structural diagram of a support ring in a screw extrusion type sludge dewatering treatment device proposed by the present invention;

[0035] Fig.11 This is a structural cross-sectional view of a limit strip in a screw extrusion type sludge dewatering treatment device proposed by the present invention;

[0036] Fig.12 This is a schematic structural diagram of a locking component in a screw extrusion type sludge dewatering treatment device proposed by the present invention.

[0037] In the figure: 1. base; 2. spiral shaft; 3. flow meter; 4. transmission belt; 5. feed port; 6. discharge pipe; 7. pressure plate; 8. cover; 9. mounting rod; 10. support ring; 11. floating ring; 12. locking piece; 13. limit strip; 14. discharge slot; 15. discharge worm; 16. rotating motor; 17. servo motor; 18. frame; 19. pillar; 20. guide roller; 21. guide motor; 22. upper swing arm; 23. lower swing arm; 24. folding arm; 25. grooved half ring; 26. limit half ring; 27. vertical slide; 28. circular groove; 29. ​​guide tooth block; 30. eccentric shaft; 31. limit hole; 32. mounting hole; 33. plug; 34. limit arc surface; 35. limit slot; 36. positioning pin. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Example, see Figures 1 to 12A screw extrusion type sludge dewatering treatment equipment comprises a base 1, a screw shaft 2, a flow detector 3 and a transmission belt 4. A feed port 5 is provided at the top of one end of the base 1, a discharge pipe 6 and a pressing plate 7 are provided at the other end of the base 1, a cover 8 is provided at the base 1 corresponding to the discharge pipe 6 and the pressing plate 7 to block the mud cake, and a guide assembly is provided at the top of the base 1;

[0042] The guide assembly includes a frame 18, the frame 18 matches the fixed ring unit, the two ends of the frame 18 are fixedly connected to the top of the base 1, the bottom of the frame 18 is fixedly connected to the support ring 10, the bottom of the support ring 19 is fixedly connected to the top of the two ends of the support ring 10, a plurality of guide rollers 20 for driving the fixed ring unit to unfold are rotatably connected in the frame 18, the frame 18 is fixedly connected to the guide roller 20 corresponding to the guide motor 21, the outer wall of the guide roller 20 close to one end of the guide motor 21 is provided with bevel gears, and the output end of the guide motor 21 is meshed and connected with the guide roller 20 through the bevel gears;

[0043] A mounting rod 9 and a lamination assembly are provided inside the base 1 at a position corresponding to the guide assembly. The lamination assembly includes a support ring 10, a swing mechanism, a floating ring 11 and a fixed ring unit.

[0044] The swing mechanism includes an upper swing arm 22 and a lower swing arm 23. Both ends of the floating ring 11 are fixedly connected to the upper swing arm 22 and the lower swing arm 23. The upper swing arm 22 is slidably connected to the base 1. Both ends of the lower swing arm 23 are provided with an eccentric shaft 30. The input end of the eccentric shaft 30 passes through the base 1 and is rotatably connected to the rotating motor 16.

[0045] The fixing ring unit includes a plurality of folding rods 24, grooved semi-rings 25 and limiting semi-rings 26 arranged relatively to each other. The top of the folding rod 24 is rotatably connected to the mounting rod 9, and the bottom of the folding rod 24 is fixedly connected to the grooved semi-rings 25 and the limiting semi-rings 26, so as to drive the grooved semi-rings 25 and the limiting semi-rings 26 to unfold. The grooved semi-rings 25 and the limiting semi-rings 26 are arranged relatively to each other.

[0046] Locking pieces 12 are provided on both sides of the bottom of the fixed ring unit, and limit strips 13 are provided on both sides of the top of the fixed ring unit. A discharge groove 14 is provided on the upper surface of the base 1, and a discharge worm 15 is provided inside the bottom of the discharge groove 14. A rotary motor 16 is provided at the power input end of the discharge worm 15. The spiral shaft 2 is located inside the lamination assembly for conveying sludge. The input end of the spiral shaft 2 passes through the cover 8 and is connected to a servo motor 17. The flow detector 3 is located at the output end of the discharge groove 14 and is used to monitor the filtered water flow.

[0047] It should be noted that the lamination assembly is divided into three sections by the support ring 10, which are the concentration section, the middle section and the dehydration section from the output end to the input end of the device;

[0048] Furthermore, vertical slide grooves 27 are provided on both sides of the base 1 corresponding to the upper swing arm 22, and circular grooves 28 for installing the swing assembly are provided on both sides of the base 1 corresponding to the lower swing arm 23, which are used to support the swing assembly to drive the floating ring 11 to swing, and the material output end of the base 1 corresponding to the discharge worm 15 is open for discharging sewage and sludge;

[0049] Furthermore, a plurality of guide tooth blocks 29 are fixedly connected to the outer wall of the guide roller 20 corresponding to the fixed ring unit, and the guide tooth blocks 29 are meshedly connected with the gears of the folding rods 24 close to the side thereof, so as to guide the folding rods 24 to unfold one by one;

[0050] It should be noted that the guide roller 20 is aligned with the folding rod 24 on one side and away from the folding rod 24 on the other side, so that the guide tooth block 29 can only be meshed with a single folding rod 24 for transmission, and the guide tooth blocks 29 are arranged around the outer wall of the guide roller 20 in sequence from the output end to the input end of the device;

[0051] A further advantage of adopting the above method is that the guide roller 20 drives the fixed ring units in a single area to be unfolded one by one from the output end to the input end of the base 1 through the folding rod 24 and locked through the limit strip 13. Since the weight of a single fixed ring unit is relatively light, a large driving force is not required to drive all the fixed ring units in a single section to unfold, thus realizing the function of energy saving, opening the lamination assembly, and allowing workers to observe the internal conditions of the lamination assembly with the naked eye, thus realizing the function of facilitating the search for the blockage location and troubleshooting without disassembling the spiral shaft 2.

[0052] Further, the outer wall of the eccentric shaft 30 is rotatably connected to the circular groove 28, and the two ends of the eccentric shaft 30 facing the inside are rotatably connected to the lower rocking arm 23. The input end of the eccentric shaft 30 is staggered with the power input end of the discharge worm 15. The input end of the eccentric shaft 30 and the power input end of the discharge worm 15 are both connected to the rotating motor 16 through the transmission belt 4. The rotating motor 16 drives the discharge worm 15 and the eccentric shaft 30 to rotate at the same time, and the lower rocking arm 23 is driven to swing through the eccentric shaft 30.

[0053] It should be noted that the power input ends of the eccentric shaft 30 and the discharge worm 15 are staggered, and the power input ends of the eccentric shaft 30 and the discharge worm 15 are connected to the rotary motor 16 through the transmission belt 4, so that the rotary motor 16 can drive the discharge worm 15 to rotate and drive the swing mechanism to drive the floating ring 11 to swing, so that the swing mechanism can work independently of the screw shaft 2;

[0054] A further advantage of the above method is that when a blockage occurs, even if all the fixed ring units in the blocked area are unfolded, the movable ring 11 and the discharge worm 15 can still work normally. While flushing with a water gun in the prior art, the movement of the movable ring 11 assists in breaking up the blocked sludge, causing it to fall into the discharge trough 14 and be discharged by the discharge worm 15, thereby reducing the difficulty of troubleshooting.

[0055] Furthermore, a gear is provided at the top of the folding rod 24, and the folding rod 24 is meshed and connected with each other through the gear at the top, so that it can be unfolded synchronously. A limiting hole 31 is provided on the surface of the folding rod 24, and a mounting hole 32 is provided at the folding rod 24 corresponding to the grooved semi-ring 25 and the limiting semi-ring 26;

[0056] Furthermore, a plug 33 is fixedly connected to one side of the limiting half ring 26 facing the grooved half ring 25, and the plug 33 is plugged into the grooved half ring 25 to avoid misalignment after merging;

[0057] Furthermore, the locking member 12 is detachably connected to the base 1, and a limiting arc surface 34 is provided on one side of the locking member 12 facing the fixing ring unit. The shape of the limiting arc surface 34 matches the grooved half ring 25 and the limiting half ring 26, and is used to lock the fixing ring unit when folded;

[0058] Furthermore, a plurality of limiting grooves 35 matching the folding rod 24 are provided at the bottom of the limiting strip 13. The shape of the limiting grooves 35 matches the shape of the folding rod 24 after unfolding. Positioning pins 36 for locking the folding rod 24 are installed in the limiting grooves 35 corresponding to the limiting holes 31.

[0059] When the present invention is used, sludge is put into the feed port 5, and the servo motor 17 drives the spiral shaft 2 to rotate to convey the sludge. During the conveying process, the rotating motor 16 drives the eccentric shaft 30 to rotate in the circular groove 28 through the transmission belt 4, and the eccentric shaft 30 drives the lower swing arm 23 to rotate eccentrically, so that the lower swing arm 23 performs a circular motion around the eccentric shaft 30. When the lower swing arm 23 rotates, it pushes the floating ring 11 from the bottom to move synchronously, and the floating ring 11 pushes the upper swing arm 22 to slide up and down in the vertical slide groove 27, so that the floating ring 11 swings between the fixed ring units, and the water in the sludge is filtered out from between the overlapping floating rings 11, the grooved semi-rings 25 and the limiting semi-rings 26, and the filtered water falls into the discharge groove 14 is discharged through the discharge worm 15. When the filtered water is discharged, the filtered water flow rate is detected by the flow detector 3. If the filtered water flow rate is large, it indicates that the sludge has a high water content. At this time, the industrial computer in the prior art reduces the speed of the servo motor 17 to extend the sludge passing time so that the sludge can be fully dried. If the filtered water flow rate is small, it indicates that the sludge has a low water content. At this time, the industrial computer increases the speed of the servo motor 17 to shorten the sludge passing time to avoid blockage, so that the speed of the spiral shaft 2 can be adjusted in time to avoid blockage or incomplete drying caused by common reasons. When the sludge reaches the output end of the discharge pipe 6, it is squeezed under the action of the pressing plate 7 to form a filter cake, and the filter cake is blocked by the cover 8 when it falls off for easy collection;

[0060] When blockage occurs due to incorrect addition of flocculant ratio and excessive inorganic matter content in sludge, the worker removes the locking piece 12 and starts the guide motor 21 of all areas through the industrial computer. The guide motor 21 drives the guide roller 20 to rotate. When the guide roller 20 rotates, the guide tooth block 29 is driven to mesh with the folding rod 24 one by one, so that the folding rod 24 close to the guide roller 20 rotates one by one. When the folding rod 24 rotates, the folding rod 24 away from the guide roller 20 is driven to rotate synchronously along the mounting rod 9 through mutual meshing. The folding rod 24 rotates and enters the limiting groove 35 at the same time. In this process, the grooved half ring 25 and the limiting half ring 26 are driven to expand relative to each other through the folding rod 24, so that the laminated assembly is opened. After the folding rod 24 completely enters the limiting groove 35, the fixing pin is inserted into the limiting hole 31 under the action of elastic force to complete the locking. Through the coordinated use of the guiding roller 20 and the limiting strip 13, the folding rods 24 are lifted and locked one by one. Only the driving force of lifting one group of folding rods 24 is required to unfold all the folding rods 24 of a single section, realizing the function of energy saving.

[0061] At this time, the worker can directly observe and find the blockage position by visual observation, and then use the water gun in the prior art to clean the blocked part. During this process, the swing mechanism and the discharge worm 15 work normally, and the dry sludge that is difficult to flush is broken by the movement of the floating ring 11, so that it falls into the discharge groove 14 and is discharged by the discharge worm 15, realizing the function of troubleshooting without disassembling the spiral shaft 2, and reducing the difficulty of troubleshooting;

[0062] After troubleshooting is completed, the industrial computer controls the guide motor 21 to rotate in the opposite direction, and drives the folding rod 24 to reset through the guide roller 20. Because the driving force of the guide motor 21 is greater than the locking force of the fixing pin, the folding rod 24 can pass through the positioning pin 36 and reset. After the folding rod 24 is reset, it drives the grooved half ring 25 and the limiting half ring 26 to be plugged in to avoid misalignment during work after the merging. Finally, the locking piece 12 is reset. The locking piece 12 squeezes the fixing ears at the bottom of the grooved half ring 25 and the limiting half ring 26 from both sides to the center through the limiting arc surface 34 to avoid displacement of the fixing ring unit during work, thereby realizing the locking function.

[0063] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A screw extrusion type sludge dewatering treatment device, comprising a base (1), a screw shaft (2), a flow detector (3) and a transmission belt (4), characterized in that: A feed port (5) is provided at the top of one end of the base (1), a discharge pipe (6) and a pressure plate (7) are provided at the other end of the base (1), a cover body (8) is provided at the base (1) corresponding to the discharge pipe (6) and the pressure plate (7) to block the mud cake, a guide assembly is provided at the top of the base (1), a mounting rod (9) and a lamination assembly are provided inside the base (1) corresponding to the guide assembly, the lamination assembly comprises a support ring (10), a swing mechanism, a floating ring (11) and a fixed ring unit, locking pieces (12) are provided on both sides of the bottom of the fixed ring unit, and both sides of the top of the fixed ring unit A limit strip (13) is provided, a discharge groove (14) is provided on the upper surface of the base (1), a discharge worm (15) is provided inside the bottom end of the discharge groove (14), a rotary motor (16) is provided at the power input end of the discharge worm (15), a material output end of the discharge worm (15) faces the rotary motor (16), the spiral shaft (2) is located inside the lamination assembly and is used to transport sludge, the input end of the spiral shaft (2) passes through the cover (8) and is connected to a servo motor (17), and the flow detector (3) is located at the output end of the discharge groove (14) and is used to monitor the filtered water flow; The guide assembly comprises a frame (18), the frame (18) matches the fixed ring unit, the two ends of the frame (18) are fixedly connected to the top of the base (1), the bottom of the frame (18) is fixedly connected to a support column (19) corresponding to the support ring (10), the bottom of the support column (19) is fixedly connected to the top of the two ends of the support ring (10), a plurality of guide rollers (20) for driving the fixed ring unit to unfold are rotatably connected in the frame (18), the frame (18) is fixedly connected to a guide motor (21) corresponding to the guide roller (20), the outer wall of the guide roller (20) close to one end of the guide motor (21) is provided with bevel teeth, and the output end of the guide motor (21) is meshed with the guide roller (20) through the bevel teeth; The swing mechanism comprises an upper swing rod (22) and a lower swing rod (23), the two ends of the floating ring (11) are fixedly connected to the upper swing rod (22) and the lower swing rod (23), the upper swing rod (22) is slidably connected to the base (1), and the two ends of the lower swing rod (23) are provided with an eccentric rotating shaft (30), and the input end of the eccentric rotating shaft (30) passes through the base (1) and is rotationally connected to the rotating motor (16); The fixed ring unit comprises a plurality of folding rods (24), grooved half rings (25) and limiting half rings (26) arranged relatively to each other. The top of the folding rod (24) is rotatably connected to the mounting rod (9), and the bottom of the folding rod (24) is fixedly connected to the grooved half ring (25) and the limiting half ring (26) for driving the grooved half ring (25) and the limiting half ring (26) to unfold. The grooved half ring (25) and the limiting half ring (26) are arranged relatively to each other.

2. The screw extrusion type sludge dewatering treatment equipment according to claim 1 is characterized in that: The base (1) is provided with vertical slide grooves (27) on both sides corresponding to the upper swing arm (22), and the base (1) is provided with circular grooves (28) on both sides corresponding to the lower swing arm (23) for installing a swing assembly, which is used to support the swing assembly to drive the floating ring (11) to swing. The base (1) is open at the material output end corresponding to the discharge worm (15) for discharging sewage and sludge.

3. The screw extrusion type sludge dewatering treatment equipment according to claim 1, characterized in that: A plurality of guide tooth blocks (29) are fixedly connected to the outer wall of the guide roller (20) corresponding to the fixed ring unit, and the guide tooth blocks (29) are meshedly connected with the gears of the folding rods (24) close to the guide roller (20) to guide the folding rods (24) to unfold one by one.

4. The screw extrusion type sludge dewatering treatment equipment according to claim 1, characterized in that: The outer wall of the eccentric rotating shaft (30) is rotatably connected to the circular groove (28), and the two ends of the eccentric rotating shaft (30) facing the inside are rotatably connected to the lower rocking rod (23).

5. The screw extrusion type sludge dewatering treatment equipment according to claim 4, characterized in that: The input end of the eccentric rotating shaft (30) is staggered from the power input end of the discharge worm (15); the input end of the eccentric rotating shaft (30) and the power input end of the discharge worm (15) are both connected to the rotating motor (16) via a transmission belt (4); the rotating motor (16) drives the discharge worm (15) and the eccentric rotating shaft (30) to rotate simultaneously, and the eccentric rotating shaft (30) drives the lower rocking arm (23) to swing at the same time.

6. The screw extrusion type sludge dewatering treatment equipment according to claim 1, characterized in that: The top end of the folding rod (24) is provided with a gear, and the folding rods (24) are meshed and connected with each other through the gear at the top end so that they can be unfolded synchronously. The surface of the folding rod (24) is provided with a limiting hole (31), and the folding rod (24) is provided with a mounting hole (32) at the position corresponding to the grooved semi-ring (25) and the limiting semi-ring (26).

7. The screw extrusion type sludge dewatering treatment equipment according to claim 1, characterized in that: A plug (33) is fixedly connected to the side of the limiting half ring (26) facing the grooved half ring (25), and the plug (33) is plugged into the grooved half ring (25) to avoid misalignment after merging.

8. The screw extrusion type sludge dewatering treatment equipment according to claim 1, characterized in that: The locking member (12) is detachably connected to the base (1), and a limiting arc surface (34) is provided on a side of the locking member (12) facing the fixing ring unit. The shape of the limiting arc surface (34) matches the grooved half ring (25) and the limiting half ring (26), and is used to lock the fixing ring unit when folded.

9. The screw extrusion type sludge dewatering treatment equipment according to claim 6, characterized in that: A plurality of limiting grooves (35) matching the folding rod (24) are provided at the bottom of the limiting strip (13); the shape of the limiting grooves (35) matches the shape of the folding rod (24) after being unfolded; and positioning pins (36) for locking the folding rod (24) are installed in the limiting grooves (35) at positions corresponding to the limiting holes (31).

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