Sludge transportation protection device of bin cleaning machine
By introducing components such as belt conveyors and screw extrusion dewatering machines into the sludge cleaning machine, the sludge is dewatered and extruded into blocks, solving the problem of low sludge transportation efficiency in the sludge cleaning machine, improving sludge cleaning efficiency and reducing pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUHENG POWER STATION OF SHAANXI HUADIAN YUHENG COAL POWER CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-05-19
AI Technical Summary
Existing sludge removal machines have low sludge transportation efficiency, cannot effectively utilize belt conveyors for continuous transportation, and are inflexible in transportation, affecting sludge removal efficiency and increasing pollution.
A protective device for transporting sludge in a sludge cleaning machine was designed, including a belt conveyor, a screw extrusion dewatering machine, a tank, a rotating rod, and downward pressing screw blades. The rotating rod is driven by a motor to rotate, pushing the sludge to be dewatered and extruded into blocks in the tank, and then transported by the belt conveyor.
It improved dredging efficiency, reduced the volume of sludge transported, decreased the frequency of use of transport vehicles and pollution, and enabled continuous sludge transportation.
Smart Images

Figure CN224258483U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sludge transportation technology, specifically a sludge transportation protection device for a sludge cleaning machine. Background Technology
[0002] The drainage system of the underground main drainage pump room mainly consists of centrifugal pumps, drainage pipes, sewage sedimentation tanks, and debris filtration systems. The sewage discharged into the water tank contains debris such as coal sludge, which will enter the suction pipe with the water flow, aggravating the wear of the centrifugal pump components. If the sludge is not cleaned in time for a long time, some debris will become entangled in the suction head, and the sludge accumulation will bury the suction head, causing blockage, drainage difficulties, and drainage accidents. In more serious cases, it can cause flooding accidents and seriously affect the safety of underground power supply.
[0003] Therefore, a sludge cleaning machine is used regularly to clean the silt. The sludge cleaning machine uses a spiral device that can move left, right, up, and down to stir and break the hardened silt at the bottom of the silo into a fluid state. The stirred silt is then conveyed to the hopper by a scraper with an automatic compensation function to ensure continuous material conveying. Finally, the silt in the hopper is pressurized and conveyed by a mud pump, and then transported upward through pipelines to the water silo, completing the sludge cleaning work of the water silo.
[0004] Because the sludge discharged by the sludge cleaning machine is in a fluid state, it cannot be continuously transported using a belt conveyor. Instead, it can only be transported back and forth multiple times using a transport vehicle, which wastes a lot of time. Furthermore, the limited space at the water tank makes transportation inflexible, which greatly affects the sludge cleaning efficiency.
[0005] Therefore, a protective device for transporting sludge in a sludge removal machine is proposed to address the above problems. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The sludge transport protection device of this utility model includes a belt conveyor; a screw extrusion dewatering machine is provided at the feeding end of the belt conveyor; a tank is provided at the top of the feeding end of the belt conveyor; the discharge port of the screw extrusion dewatering machine is connected to the inlet of the tank; multiple forming ports are opened around the bottom of the tank; a rotating rod is rotatably installed on the top of the tank; a downward pressing screw blade is fixedly connected to the outer ring of the rotating rod; a motor is fixedly connected to the top surface of the tank; the output shaft of the motor is fixedly connected to the top end of the rotating rod.
[0008] Preferably, a conical seat is provided at the bottom of the inner cavity of the tank; the top surface of the outer ring of the bottom of the tank is aligned with the inner bottom surface of the forming opening.
[0009] Preferably, an extrusion cylinder is bolted to the middle of the inner cavity of the tank; the inner diameter of the middle part of the extrusion cylinder is smaller than the inner diameters of both ends; the bottom of the downward pressing spiral blade is a conical structure, and the bottom of the downward pressing spiral blade is located on the top inner ring of the extrusion cylinder; the top of the conical seat is located on the bottom inner ring of the extrusion cylinder; and the bottom of the conical seat is located on the top of the forming port.
[0010] Preferably, the conical seat is rotatably connected to the bottom of the inner cavity of the tank; the top end of the conical seat is bolted to the bottom end of the rotating rod.
[0011] Preferably, a water filter chamber is provided in the middle of the bottom surface of the conical seat; a sealing cover is bolted to the bottom of the water filter chamber; a water outlet pipe is fixed to the bottom surface of the middle of the sealing cover; the water outlet pipe rotatably passes through the bottom of the tank; and multiple water filter holes are provided on the top outer wall of the conical seat.
[0012] Preferably, a plurality of fan-shaped filter cloth sheets are bolted to the top outer ring of the conical seat; the filter cloth sheets cover the outside of the filter holes.
[0013] Preferably, the bottom outer ring of the tank body is fitted with an inner rail and an outer rail; a ring plate is slidably installed at the bottom between the inner rail and the outer rail; a connecting frame is fixedly connected to the outer ring of the water outlet pipe; one end of the connecting frame away from the water outlet pipe is fixedly connected to the bottom surface of the ring plate; and a feeding slide plate is provided on the side of the outer rail near the belt conveyor.
[0014] Preferably, a guide plate is bolted between the inner rail and the outer rail, on the side of the feeding slide away from the rotation direction of the ring plate.
[0015] The advantages of this utility model are:
[0016] 1. The sludge transport protection device for a sludge cleaning machine described in this utility model comprises a belt conveyor, a screw extrusion dewatering machine, a tank, a forming port, a rotating rod, a downward pressing screw blade, and a motor. The motor drives the rotating rod to rotate, which in turn drives the downward pressing screw blade to rotate, pushing the dewatered sludge downward inside the tank. This causes the dewatered sludge to be squeezed out through the forming port on the outer ring of the bottom of the tank, thus compressing the dewatered sludge into block-shaped sludge blocks, which fall onto the belt conveyor and are transported along the belt conveyor. By dewatering and compressing the fluid sludge into blocks, it is easy to transport using a belt conveyor, which not only reduces the volume of sludge transport and avoids multiple round trips by transport vehicles, but also effectively improves sludge cleaning efficiency and reduces pollution during sludge transport by using a belt conveyor.
[0017] 2. The sludge transport protection device for a sludge cleaning machine described in this utility model, by setting a conical seat, pushes the dewatered sludge downward inside the tank by pressing down the spiral blades. Due to the conical seat at the bottom of the tank, the bottom space of the conical tank is reduced, and the blocking and guiding effect of the conical seat causes the dewatered sludge to move towards the outer ring of the bottom of the tank, thereby squeezing and pushing the dewatered sludge into the forming opening, thus improving the efficiency of sludge squeezing into blocks. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a perspective view of the present utility model;
[0020] Figure 2 This is a cross-sectional view of the screw extrusion dewatering machine of this utility model;
[0021] Figure 3 This is a three-dimensional structural diagram of the tank body in this utility model;
[0022] Figure 4 This is a cross-sectional view of the tank body in this utility model;
[0023] Figure 5 This is an exploded structural diagram of the tank body in this utility model;
[0024] Figure 6 This is a three-dimensional structural diagram of the conical seat in this utility model;
[0025] Figure 7 This is an exploded structural diagram of the conical seat in this utility model;
[0026] Figure 8 This is a cross-sectional view of the conical seat in this utility model;
[0027] Figure 9 This is a cross-sectional view of the extrusion cylinder in this utility model;
[0028] Figure 10 This is a three-dimensional structural diagram of the downward pressing helical blade in this utility model;
[0029] Figure 11 This is a three-dimensional structural diagram of the inner and outer rails in this utility model.
[0030] In the diagram: 1. Belt conveyor; 2. Screw extrusion dewatering machine; 3. Tank; 4. Forming port; 5. Rotary rod; 6. Downward pressing screw blade; 7. Motor; 8. Conical seat; 9. Extrusion cylinder; 10. Filter chamber; 11. Sealing cover plate; 12. Water outlet pipe; 13. Filter cloth sheet; 14. Inner rail; 15. Outer rail; 16. Ring plate; 17. Connecting frame; 18. Feeding slide plate; 19. Hanger; 20. Guide plate. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0032] like Figures 1 to 5 As shown, a sludge transport protection device for a sludge cleaning machine includes a belt conveyor 1; a screw extrusion dewatering machine 2 is installed at the feeding end of the belt conveyor 1; a tank 3 is installed at the top of the feeding end of the belt conveyor 1; the discharge port of the screw extrusion dewatering machine 2 is connected to the inlet of the tank 3; multiple forming ports 4 are opened around the bottom outer periphery of the tank 3; a rotating rod 5 is rotatably installed on the top of the tank 3; a downward pressing screw blade 6 is fixedly connected to the outer ring of the rotating rod 5; a motor 7 is fixedly connected to the top surface of the tank 3; the output shaft of the motor 7 is fixedly connected to the top end of the rotating rod 5.
[0033] Specifically, the height of the loading end of the belt conveyor 1 is lower than the height of the unloading end, which facilitates the loading of transport vehicles at the unloading end of the belt conveyor 1.
[0034] The screw extrusion dewatering machine 2 is fixedly installed at the feeding end of the belt conveyor 1 by a bracket; the screw extrusion dewatering machine 2 includes a horizontally placed cylinder, the end of the cylinder near the belt conveyor 1 being conical; a hopper is fixedly connected to the top of the end of the cylinder away from the belt conveyor 1, and the sludge cleaned by the cleaning machine is transported into the hopper through a pipe; a mesh filter cartridge is fixedly connected to the outer ring of the inner side of the cylinder, and there is a gap between the mesh filter cartridge and the cylinder, and the hopper is connected to the inside of the mesh filter cartridge; a liquid outlet is provided at the bottom of the cylinder; a screw blade is rotatably installed inside the mesh filter cartridge, and the shape of the screw blade matches that of the mesh filter cartridge; a motor is fixedly connected to the end of the cylinder away from the belt conveyor 1, and the shaft of the motor is fixedly connected to the screw blade;
[0035] The tank body 3 is fixedly supported on both sides by columns, so that the tank body 3 is located at the top of the feeding end of the belt conveyor 1; the top of the tank body 3 is provided with a feed port near the end of the screw extrusion dewatering machine 2, and the feed port of the tank body 3 is bolted to the discharge port of the screw extrusion dewatering machine 2; the top and bottom of the tank body 3 are both bolted with covers.
[0036] During operation, the cleaning machine transports fluid sludge through pipes to the hopper of the screw extrusion dewatering machine 2. The sludge enters the mesh filter cylinder of the screw extrusion dewatering machine 2 through the hopper. At the same time, the motor drives the screw blades to rotate, pushing the sludge towards the tank 3. As the diameter of the mesh filter cylinder and the screw blades gradually decreases, the sludge is gradually squeezed, squeezing out the water in the sludge. The water then flows through the mesh of the mesh filter cylinder into the gap between the mesh filter cylinder and the cylinder body, and is then discharged from the outlet. The dewatered sludge enters the top of the tank 3.
[0037] At this time, the motor 7 drives the rotating rod 5 to rotate, which in turn drives the downward pressing spiral blade 6 to rotate, pushing the dewatered sludge downward inside the tank 3, so that the dewatered sludge is squeezed out from the forming port 4 on the outer ring of the bottom of the tank 3, and the dewatered sludge is squeezed into block-shaped sludge blocks, which fall onto the belt conveyor 1 and are transported along the belt conveyor 1.
[0038] By dewatering and compressing the fluid sludge into blocks, it is easier to transport using belt conveyor 1. This not only reduces the volume of sludge transport and avoids multiple trips by transport vehicles, but also effectively improves dredging efficiency and reduces pollution during sludge transport by transporting sludge blocks using belt conveyor 1.
[0039] In some embodiments, such as Figures 4 to 6 As shown, a conical seat 8 is provided at the bottom of the inner cavity of the tank body 3; the top surface of the outer ring of the bottom of the tank body 3 is aligned with the inner bottom surface of the forming port 4;
[0040] Specifically, the conical seat 8 is set on the top surface of the bottom cover of the tank body 3, and the outer ring of the bottom of the conical seat 8 fits into the interior of the tank body 3;
[0041] During operation, as the downward-pressing spiral blades 6 push the dewatered sludge downward inside the tank 3, the conical seat 8 at the bottom of the tank 3 reduces the bottom space of the conical tank 3. The obstruction and guidance of the conical seat 8 causes the dewatered sludge to move towards the outer edge of the bottom of the tank 3, thereby squeezing and pushing the dewatered sludge into the forming port 4, thus improving the efficiency of sludge compression into blocks.
[0042] In some embodiments, such as Figure 5 , Figure 6 , Figure 9 and Figure 10As shown, an extrusion cylinder 9 is bolted to the middle of the inner cavity of the tank body 3; the inner diameter of the middle part of the extrusion cylinder 9 is smaller than the inner diameters of both ends; the bottom of the downward pressing spiral blade 6 is a conical structure, and the bottom of the downward pressing spiral blade 6 is located on the top inner ring of the extrusion cylinder 9; the top of the conical seat 8 is located on the bottom inner ring of the extrusion cylinder 9; the bottom of the conical seat 8 is located on the top of the forming port 4;
[0043] Specifically, the side wall of the extrusion cylinder 9 has an arc-shaped cross-section, and the top and bottom outer rings of the extrusion cylinder 9 are in contact with the inner wall of the tank body 3. The top and bottom outer rings of the extrusion cylinder 9 are provided with positioning ring grooves, and the inner wall of the tank body 3 is fixed with positioning protrusions that match the positioning ring grooves. The middle outer ring of the extrusion cylinder 9 is fixed with a fixing protrusion, and the inner wall of the tank body 3 is fixed with a corresponding protrusion. The extrusion cylinder 9 is fixedly installed on the inner wall of the tank body 3 by multiple screws.
[0044] During operation, the downward-pressing spiral blades 6 push the dewatered sludge downward inside the tank 3, allowing the dewatered sludge to enter the inner ring of the extrusion cylinder 9. Due to the positional relationship between the extrusion cylinder 9 and the conical seat 8, the dewatered sludge moves towards the forming port 4 along the channel formed between the extrusion cylinder 9 and the conical seat 8. The sludge at the dewatering port is further squeezed, causing the dewatered sludge to be squeezed and adhered, thereby further improving the compactness of the sludge blocks.
[0045] Furthermore, such as Figures 4 to 6 As shown, the conical seat 8 is rotatably connected to the bottom of the inner cavity of the tank body 3; the top end of the conical seat 8 is bolted to the bottom end of the rotating rod 5;
[0046] Specifically, when the motor 7 drives the rotating rod 5 to rotate, and the downward pressing spiral blades 6 push the dewatered sludge downward inside the tank 3, the rotating rod 5 simultaneously drives the conical seat 8 to rotate, which in turn pushes the sludge that enters between the extrusion cylinder 9 and the conical seat 8 laterally. This reduces the adhesion between the sludge and the outer wall of the conical seat 8 and the inner wall of the extrusion cylinder 9, thereby improving the effect of extruding and shaping the dewatered sludge.
[0047] In some embodiments, such as Figures 4 to 8 As shown, a water filter chamber 10 is provided in the middle of the bottom surface of the conical seat 8; a sealing cover plate 11 is bolted to the bottom of the water filter chamber 10; a water outlet pipe 12 is fixed to the bottom surface of the middle part of the sealing cover plate 11; the water outlet pipe 12 rotatably passes through the bottom of the tank body 3; and multiple water filter holes are provided on the top outer wall of the conical seat 8.
[0048] Specifically, the bottom outer ring of the conical seat 8 has multiple grooves, and a sealing ring is provided inside the grooves. The bottom surface of the conical seat 8 has a circular groove, and the diameter of the circular groove is larger than the bottom inner ring diameter of the filter chamber 10. The sealing cover 11 is set in the circular groove of the conical seat 8, and the sealing cover 11 is fixed to the circular groove of the conical seat 8 by multiple screws. The bottom cover of the tank body 3 has a circular hole in the middle, and the water outlet pipe 12 passes through the circular hole. A water pipe connector is rotatably installed at the bottom of the water outlet pipe 12.
[0049] During operation, the dehydrated sludge moves towards the forming port 4 along the channel formed between the extrusion cylinder 9 and the conical seat 8, causing the dehydrated sludge to be squeezed again, separating the residual water in the sludge. The water is then discharged from the filter holes on the outer ring of the conical seat 8 into the filter chamber 10 inside the conical seat 8, and discharged through the outlet pipe 12. By compressing the sludge again, the moisture content in the sludge is effectively reduced, and the dryness of the formed sludge block is improved.
[0050] Furthermore, such as Figures 6 to 8 As shown, a plurality of fan-shaped filter cloth sheets 13 are bolted to the top outer ring of the conical seat 8; the filter cloth sheets 13 cover the outside of the filter holes;
[0051] Specifically, the filter cloth 13 has a fan-shaped structure, and multiple filter cloths 13 can form a conical structure that matches the conical seat 8; the two ends of the filter cloth 13 are fixed to the outer wall of the conical seat 8 by screws, and multiple filter cloths 13 cover the filter holes on the outer wall of the conical seat 8.
[0052] The filter cloth 13 blocks the filter holes on the conical seat 8, preventing sludge from entering the filter holes and causing blockage, and also preventing sludge from entering the filter chamber 10 and causing blockage of the outlet pipe 12. Furthermore, the multiple filter cloths 13 work together to block the filter holes, making it easier for staff to disassemble and clean the filter cloths 13.
[0053] In some embodiments, such as Figures 3 to 5 and Figure 11 As shown, the bottom outer ring of the tank body 3 is fitted with an inner rail 14 and an outer rail 15; a ring plate 16 is slidably installed at the bottom between the inner rail 14 and the outer rail 15; a connecting frame 17 is fixedly connected to the outer ring of the water outlet pipe 12; one end of the connecting frame 17 away from the water outlet pipe 12 is fixedly connected to the bottom surface of the ring plate 16; a discharge slide plate 18 is provided on the side of the outer rail 15 near the belt conveyor 1.
[0054] Specifically, multiple hangers 19 are fixedly connected around the bottom outer ring of the tank body 3. The bottom end of the hangers 19 is fixedly connected to the inner rail 14 and the outer rail 15. The forming port 4 is located at the top of the ring plate 16. A groove is opened at the bottom of the side of the inner rail 14 that is close to the outer rail 15. The ring plate 16 is set inside the grooves on both sides. The connecting frame 17 includes a fixing ring sleeved on the outer ring of the water outlet pipe 12. The fixing ring is fixedly locked to the water outlet pipe 12 by screws. Multiple support rods are fixedly connected around the outer ring of the fixing ring. The other end of the support rods is fixedly connected to the bottom surface of the ring plate 16.
[0055] After dewatering, the sludge is squeezed into block-shaped sludge blocks by the forming port 4 and discharged, falling onto the top surface of the ring plate 16. At the same time, the motor 7 drives the rotating rod 5 to rotate, which in turn drives the conical seat 8 and the water outlet pipe 12 to rotate, and drives the connecting frame 17 to rotate. This, in turn, drives the ring plate 16 to rotate between the inner rail 14 and the outer rail 15. The sludge blocks then slide from the discharge slide plate 18 to the top surface of the belt conveyor 1. Through the rotation of the ring plate 16 and the obstruction of the inner rail 14 and the outer rail 15, the sludge blocks are concentrated on the discharge slide plate 18 and discharged in a concentrated manner, thereby preventing the sludge blocks from falling off when transferred to the belt conveyor 1.
[0056] Furthermore, such as Figures 3 to 5 and Figure 11 As shown, a guide plate 20 is bolted between the inner rail 14 and the outer rail 15, and on the side of the unloading slide plate 18 away from the rotation direction of the ring plate 16.
[0057] Specifically, the guide plate 20 is fixed to the inner rail 14 and the outer rail 15 by screws, and the guide plate 20 blocks the ring plate 16 on the side of the discharge slide plate 18 away from the rotation direction of the ring plate 16. When the ring plate 16 rotates, it drives the sludge block to rotate. Due to the obstruction of the guide plate 20, the sludge block turns to the discharge slide plate 18, thereby increasing the discharge rate of the sludge block.
[0058] Working principle: The cleaning machine transports fluid sludge through a pipeline to the hopper of the screw extrusion dewatering machine 2. The sludge enters the mesh filter cylinder of the screw extrusion dewatering machine 2 through the hopper. At the same time, the motor drives the screw blades to rotate, pushing the sludge towards the tank 3. As the diameter of the mesh filter cylinder and the screw blades gradually decreases, the sludge is gradually squeezed, and the water in the sludge is squeezed out and flows through the mesh of the mesh filter cylinder into the gap between the mesh filter cylinder and the cylinder body, and then is discharged from the outlet. The dewatered sludge enters the top of the tank 3.
[0059] Motor 7 drives rotating rod 5 to rotate, which in turn drives downward pressing spiral blade 6 to rotate. Simultaneously, rotating rod 5 drives conical seat 8 to rotate, pushing the dewatered sludge downward inside tank 3, so that the dewatered sludge enters the inner ring of extrusion cylinder 9. Due to the positional relationship between extrusion cylinder 9 and conical seat 8, the dewatered sludge moves towards forming port 4 along the channel formed between extrusion cylinder 9 and conical seat 8, and the sludge at the dewatering port is further squeezed.
[0060] After dehydration, the sludge moves towards the forming port 4 along the channel formed between the extrusion cylinder 9 and the conical seat 8, so that the dehydrated sludge is extruded again, so that the residual water in the sludge is separated out, and then discharged into the filter chamber 10 inside the conical seat 8 through the filter holes on the outer ring of the conical seat 8, and discharged through the outlet pipe 12.
[0061] After dewatering, the sludge is squeezed into block-shaped sludge blocks by the forming port 4 and discharged, falling onto the top surface of the ring plate 16. At the same time, the motor 7 drives the rotating rod 5 to rotate, which in turn drives the conical seat 8 and the water outlet pipe 12 to rotate, and drives the connecting frame 17 to rotate. This, in turn, drives the ring plate 16 to rotate between the inner rail 14 and the outer rail 15. The sludge blocks then slide from the discharge slide plate 18 to the top surface of the belt conveyor 1. Through the rotation of the ring plate 16 and the obstruction of the inner rail 14 and the outer rail 15, the sludge blocks are concentrated on the discharge slide plate 18 and discharged in a concentrated manner, thereby preventing the sludge blocks from falling off when transferred to the belt conveyor 1.
[0062] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A protective device for transporting sludge in a sludge removal machine, characterized in that: The device includes a belt conveyor; a screw extrusion dewatering machine is installed at the feeding end of the belt conveyor; a tank is installed at the top of the feeding end of the belt conveyor; the discharge port of the screw extrusion dewatering machine is connected to the inlet of the tank; multiple forming ports are opened around the bottom outer periphery of the tank; a rotating rod is rotatably installed on the top of the tank; a downward pressing screw blade is fixedly connected to the outer ring of the rotating rod; a motor is fixedly connected to the top surface of the tank; the output shaft of the motor is fixedly connected to the top end of the rotating rod.
2. The sludge transport protection device for a sludge removal machine according to claim 1, characterized in that: A conical seat is provided at the bottom of the inner cavity of the tank; the top surface of the outer ring of the bottom of the tank is aligned with the inner bottom surface of the forming opening.
3. The sludge transport protection device for a sludge removal machine according to claim 2, characterized in that: An extrusion cylinder is bolted to the middle of the inner cavity of the tank; the inner diameter of the middle part of the extrusion cylinder is smaller than the inner diameters at both ends; the bottom of the downward pressing spiral blade is a conical structure, and the bottom of the downward pressing spiral blade is located on the top inner ring of the extrusion cylinder; the top of the conical seat is located on the bottom inner ring of the extrusion cylinder; the bottom of the conical seat is located on the top of the forming port.
4. The sludge transport protection device for a sludge removal machine according to claim 3, characterized in that: The conical seat is rotatably connected to the bottom of the inner cavity of the tank; the top of the conical seat is bolted to the bottom of the rotating rod.
5. The sludge transport protection device for a sludge removal machine according to claim 4, characterized in that: A water filter chamber is provided in the middle of the bottom surface of the conical seat; a sealing cover is bolted to the bottom of the water filter chamber; a water outlet pipe is fixed to the bottom surface of the middle of the sealing cover; the water outlet pipe rotatably passes through the bottom of the tank; and multiple water filter holes are provided on the top outer wall of the conical seat.
6. The sludge transport protection device for a sludge removal machine according to claim 5, characterized in that: The top outer ring of the conical seat is bolted with multiple fan-shaped filter cloth sheets; the filter cloth sheets cover the outside of the filter holes.
7. The sludge transport protection device for a sludge removal machine according to claim 5, characterized in that: The bottom outer ring of the tank is fitted with an inner rail and an outer rail; a ring plate is slidably installed at the bottom between the inner rail and the outer rail; a connecting frame is fixedly connected to the outer ring of the water outlet pipe; the end of the connecting frame away from the water outlet pipe is fixedly connected to the bottom surface of the ring plate; a feeding slide plate is provided on the side of the outer rail near the belt conveyor.
8. The sludge transport protection device for a sludge removal machine according to claim 7, characterized in that: A guide plate is bolted between the inner rail and the outer rail, on the side of the feeding slide away from the rotation direction of the ring plate.