Telescopic sludge discharging device for sludge dewatering screw conveyor

Abstract

The invention discloses a telescopic sludge discharging device for a sludge dewatering screw conveyor, and relates to the technical field of screw conveyors, the telescopic sludge discharging device comprises a mounting base plate, a placement table is arranged on the upper surface of the mounting base plate, a driving motor is arranged on the upper surface of the placement table, and a sludge conveying mechanism is further arranged on the upper surface of the mounting base plate; the sludge conveying mechanism comprises a conveying assembly and a discharging assembly, the conveying assembly comprises a sludge conveying box, the sludge conveying box is located on the upper surface of the mounting base plate, a discharging opening is formed in one end of the sludge conveying box, a feeding opening is formed in the upper surface of the sludge conveying box, a rotating rod is arranged in the sludge conveying box, and an output shaft rod is arranged at one end of the rotating rod; the discharging assembly comprises a discharging auxiliary pipe, and the discharging auxiliary pipe is located on the surface of one side of the sludge conveying box. In the scheme, by arranging the sludge conveying mechanism, blockage and accumulation of sludge in the conveying process are effectively prevented, and the situation that the sludge splashes during discharging is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of screw conveyors, and particularly to a telescopic sludge discharging device for a sludge dewatering screw conveyor. Background Art

[0002] Sludge dewatering treatment is a crucial link in the environmental protection field. Especially in the processes of sewage treatment and wastewater treatment, effectively removing the moisture in the sludge and reducing the sludge volume are the keys to improving the treatment efficiency, reducing the transportation cost, and realizing resource utilization. The sludge screw conveyor, as a key device in the sludge treatment process, plays the role of a bridge in transporting the sludge from the front end of the treatment to the subsequent treatment stage. Its working principle is based on the rotational movement of the spiral blades in the cylinder. Through the frictional force between the blades and the sludge and the axial force generated by the blades to push the sludge, the continuous and stable transportation of the sludge is achieved.

[0003] There are still some inconveniences in traditional sludge dewatering screw conveyors. Traditional sludge dewatering screw conveyors often adopt a fixed spiral conveying structure for the transportation and discharge of sludge. Although this structure can meet the basic requirements of sludge treatment to a certain extent, in the actual operation process, since the sludge is prone to adhere to and accumulate on the spiral blades, the conveying efficiency is reduced, and it is necessary to frequently stop the machine for cleaning, increasing the operation cost and maintenance difficulty. Secondly, when traditional sludge dewatering screw conveyors discharge sludge, splashing is likely to occur during the discharging process, which not only affects the cleanliness of the working environment but also may cause pollution and safety hazards to the surrounding equipment and personnel. Summary of the Invention

[0004] The purpose of the present invention is to provide a telescopic sludge discharging device for a sludge dewatering screw conveyor to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution. A telescopic sludge discharging device for a sludge dewatering screw conveyor includes:

[0006] An installation base plate, on the upper surface of which there is an installation platform, on the upper surface of the installation platform there is a driving motor, and on the upper surface of the installation base plate there is also a sludge conveying mechanism, and the sludge conveying mechanism includes a conveying component and a discharging component;

[0007] The conveying component includes: a sludge conveying box located on the upper surface of the installation base plate, one end of the sludge conveying box is provided with a discharge port, the upper surface of the sludge conveying box is provided with an input port, inside the sludge conveying box there is a rotating rod, one end of the rotating rod is provided with an output shaft rod, one end of the output shaft rod is connected to the output end of the driving motor, and the surface of the rotating rod is sleeved with a conveying thread bar;

[0008] The discharge assembly includes: a discharge auxiliary pipe, which is located on one side surface of the sludge conveying tank. One end of the discharge auxiliary pipe is provided with a connecting inlet, and the connecting inlet is connected to the discharge port of the sludge conveying tank. A buffer spring plate is arranged on the inner upper surface of the discharge auxiliary pipe. One side surface of the buffer spring plate is provided with a connecting spring, and the other end of the connecting spring is connected to the inner upper surface of the discharge auxiliary pipe. A liftable lift cylinder is arranged on the inner bottom surface of the discharge auxiliary pipe, and a grounding plate is arranged on the bottom surface of the lift cylinder.

[0009] Further, the conveying thread bar is wound around the surface of the rotating rod. One end of the conveying thread bar close to the discharge port is fixedly connected to the surface of the rotating rod, and the other end of the conveying thread bar is provided with a connecting support bar.

[0010] Further, the other end of the connecting support bar is provided with a connecting ring plate, and the connecting ring plate is sleeved on the surface of the output shaft rod. An installation ring plate matched with the connecting ring plate is also sleeved on the surface of the output shaft rod, and an electric push rod is arranged between the connecting ring plate and the installation ring plate.

[0011] Further, connecting hook plates and side plates are respectively arranged on both side surfaces of the lift cylinder. A side plate piece is also arranged on the side surface of the discharge auxiliary pipe, and a telescopic motor is arranged between the side plate piece and the side plate. A telescopic motor is also arranged between the upper surface of the connecting hook plate and the bottom surface of the discharge auxiliary pipe.

[0012] Further, the discharge assembly further includes a processing component, and the processing component includes: a cutting shear, which is located on the bottom surface of the lift cylinder. A top limiting pile is arranged on the upper surface of the cutting shear, and a stress area is arranged on the upper surface of the top limiting pile. A bottom ejector rod matched with the stress area is arranged on the bottom surface of the discharge auxiliary pipe, and a limiting ring matched with the top limiting pile is arranged on the upper surface of the grounding plate.

[0013] Further, opening and closing support rods capable of driving the blades to rotate are arranged at the ends of the two blades of the cutting shear. A stress section is arranged on one side of the opening and closing support rod, and limiting disks are arranged at both ends of the stress section. A connecting pull rope is arranged on the upper surface of the limiting disk, and the upper end of the connecting pull rope is connected to the connecting hook plate. A pull rope through hole facilitating the passing of the connecting pull rope is arranged on the surface of the connecting hook plate.

[0014] Further, a pushing trolley is arranged on the bottom surface of the installation base plate. A pushing arc plate is arranged on one side of the pushing trolley, and sliding wheels are arranged on the bottom surface of the pushing trolley. Stress side plates are arranged on both side surfaces of the pushing trolley.

[0015] Furthermore, a sliding groove matching with the stress side plate is formed on the bottom side surface of the installation substrate. A push telescopic rod is also arranged inside the sliding groove. A hair-trigger switch is further arranged on the bottom surface of the discharge auxiliary pipe, and there is an electrical connection between the hair-trigger switch and the push telescopic rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In this solution, by providing a conveying assembly, the electric push rod drives the conveying screw bar to perform reciprocating stretching movement, realizing the efficient and continuous conveying of sludge inside the sludge conveying box, improving the sludge conveying efficiency. Moreover, through the reciprocating movement of the conveying screw bar, the blockage and accumulation of sludge during the conveying process are effectively prevented, ensuring the stable operation of the sludge dewatering screw conveyor. At the same time, the air flow generated during the stretching process of the conveying screw bar helps to push the small particle part in the sludge, further improving the conveying effect;

[0018] 2. In this solution, by providing a discharging assembly, through the liftable design of the lifting cylinder body, combined with the buffering effects of the buffer spring plate and the connecting spring, the situation of sludge splashing during discharge is effectively prevented. The lifting cylinder body can store a certain amount of sludge and be lifted by the drive of the telescopic motor when needed, facilitating the subsequent treatment components to separate the sludge. In addition, the setting of the buffer spring plate and the connecting spring can block the small particles carried into the discharge auxiliary pipe by the air flow, avoiding the interference of these particles on the subsequent treatment process and improving the reliability and stability of the entire sludge discharging device;

[0019] 3. In this solution, by providing a treatment component, through the shearing action of the cutting scissors, combined with the pushing function of the pushing trolley, the efficient and accurate separation and discharge of the sludge exposed at the bottom of the lifting cylinder body are realized. The cutting scissors descend under the restriction of the bottom ejector rod during the rising process of the lifting cylinder body, and the cutting edge is sheared inward by the tensioning action of the connecting pull rope to separate the sludge. Subsequently, the pushing trolley is driven by the push telescopic rod to push the cut sludge pile to one side, simplifying the sludge treatment process and improving the efficiency and accuracy of sludge treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structural schematic diagram of the present invention;

[0021] Figure 2 is the internal structural schematic diagram of the present invention;

[0022] Figure 3 is the structural schematic diagram of the conveying assembly of the present invention;

[0023] Figure 4 is the internal structural schematic diagram of the discharge auxiliary pipe of the present invention;

[0024] Figure 5 Schematic diagram of the bottom surface structure of the discharge auxiliary pipe of the present invention;

[0025] Figure 6 Schematic diagram of the cutting scissors structure of the present invention;

[0026] Figure 7 Schematic diagram of the lifting cylinder structure of the present invention;

[0027] Figure 8 Schematic diagram of the pusher trolley structure of the present invention.

[0028] In the figure: 1, mounting substrate; 2, placement table; 3, drive motor; 4, sludge delivery box; 5, input port; 6, pusher trolley; 7, discharge auxiliary pipe; 8, lifting cylinder; 9, telescopic motor; 10, rotating rod; 11, mounting ring plate; 12, output shaft rod; 13, electric push rod; 14, connecting ring plate; 15, conveying thread bar; 16, grounding plate; 17, connecting support bar; 18, cutting scissors; 19, side plate piece; 20, buffer spring plate; 21, connecting spring; 22, connecting feed inlet; 23, connecting hook plate; 24, bottom ejector rod; 25, connecting pull rope; 26, top limiting pile; 27, opening and closing support rod; 28, stress section; 29, limiting plate; 30, limiting ring; 31, pull rope perforation; 32, sliding wheel; 33, pushing arc plate; 34, pushing telescopic rod; 35, sliding groove; 36, pressure release switch. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1: Please refer to Figures 1 to 8 , a telescopic sludge discharging device for a sludge dewatering screw conveyor, comprising:

[0031] Install the substrate 1. On the upper surface of the substrate 1, there is a placement platform 2. On the upper surface of the placement platform 2, there is a driving motor 3. On the upper surface of the substrate 1, there is also a sludge conveying mechanism. The sludge conveying mechanism includes a conveying component and a discharging component. The conveying component includes: a sludge conveying box 4. The sludge conveying box 4 is located on the upper surface of the substrate 1. One end of the sludge conveying box 4 is provided with a discharge port. On the upper surface of the sludge conveying box 4, there is a feeding port 5. Inside the sludge conveying box 4, there is a rotating rod 10. One end of the rotating rod 10 is provided with an output shaft rod 12. One end of the output shaft rod 12 is connected to the output end of the driving motor 3. The surface of the rotating rod 10 is sleeved with a conveying thread bar 15. The conveying thread bar 15 is wound around the surface of the rotating rod 10. One end of the conveying thread bar 15 close to the discharge port is fixedly connected to the surface of the rotating rod 10. The other end of the conveying thread bar 15 is provided with a connecting support bar 17. The other end of the connecting support bar 17 is provided with a connecting ring plate 14. The connecting ring plate 14 is sleeved on the surface of the output shaft rod 12. The surface of the output shaft rod 12 is also sleeved with a mounting ring plate 11 that cooperates with the connecting ring plate 14. An electric push rod 13 is arranged between the connecting ring plate 14 and the mounting ring plate 11;

[0032] During use, the staff puts the sludge to be conveyed into the sludge conveying box 4 from the feeding port 5. Subsequently, the staff turns on the driving motor 3. When the driving motor 3 is driving, the rotating rod 10 is driven to rotate by the connection between the output shaft rod 12 and the rotating rod 10, so as to convey the sludge inside the sludge conveying box 4. During the conveying process, the electric push rod 13 between the mounting ring plate 11 and the connecting ring plate 14 will move back and forth continuously, and drive one end of the conveying thread bar 15 through the connecting support bar 17 to continuously stretch the entire conveying thread bar 15. During the stretching process, the conveying thread bar 15 will push the sludge inside the sludge conveying box 4 forward during the reciprocating movement, and shake off the sludge on the surface of the conveying thread bar 15. Moreover, when the conveying thread bar 15 is reciprocally stretched through a section, a wind current towards the discharge port will also be generated, which can make the small particle part of the sludge easier to be pushed. After the sludge passes through the discharge port of the sludge conveying box 4, it enters the discharging component for treatment and leaves the inside of the equipment after treatment.

[0033] The discharge assembly includes: a discharge auxiliary pipe 7, which is located on one side surface of the sludge transport tank 4. One end of the discharge auxiliary pipe 7 is provided with a connecting inlet 22, and the connecting inlet 22 is connected to the discharge port of the sludge transport tank 4. A buffer spring plate 20 is arranged on the inner upper surface of the discharge auxiliary pipe 7. A connecting spring 21 is arranged on one side surface of the buffer spring plate 20, and the other end of the connecting spring 21 is connected to the inner upper surface of the discharge auxiliary pipe 7. A liftable lift cylinder 8 is arranged on the inner bottom surface of the discharge auxiliary pipe 7. Connecting hook plates 23 and side plates are respectively arranged on both side surfaces of the lift cylinder 8. A side plate piece 19 is also arranged on the side surface of the discharge auxiliary pipe 7. A telescopic motor 9 is arranged between the side plate piece 19 and the side plate. A telescopic motor 9 is also arranged between the upper surface of the connecting hook plate 23 and the bottom surface of the discharge auxiliary pipe 7. A grounding plate 16 is arranged on the bottom surface of the lift cylinder 8;

[0034] The discharge assembly takes effect after the sludge exits the inside of the sludge transport tank 4. After the sludge exits the inside of the sludge transport tank 4, it enters the inside of the discharge auxiliary pipe 7 through the connecting inlet 22 and finally enters the inside of the lift cylinder 8 for storage. The grounding plate 16 is default to be in contact with the ground during use to prevent the sludge inside the lift cylinder 8 from flowing out. The buffer spring plate 20 above the inside of the discharge auxiliary pipe 7 can block the small particles carried into the inside of the discharge auxiliary pipe 7 by the air flow. After the lift cylinder 8 has stored the sludge for a period of time, the two telescopic motors 9 below the discharge auxiliary pipe 7 are automatically started to lift the lift cylinder 8 upward, exposing the sludge inside, and the subsequent processing components are used to separate the sludge exposed by the lift cylinder 8. Subsequently, the lift cylinder 8 descends back to the ground to accumulate sludge again, so as to prevent the sludge from splashing when being discharged.

[0035] The discharging assembly further includes a processing component, and the processing component includes: a cutting shear 18, two cutting edges are provided on the side surface of the cutting shear 18, a torsion spring is provided between the joints of the two cutting edges, the cutting shear 18 is located at the bottom surface of the lifting cylinder body 8, a top limiting pile 26 is provided on the upper surface of the cutting shear 18, a stress area is provided on the upper surface of the top limiting pile 26, a bottom ejector rod 24 matched with the stress area is provided on the bottom surface of the discharging auxiliary pipe 7, a limiting ring 30 matched with the top limiting pile 26 is formed on the upper surface of the grounding plate 16, opening and closing support rods 27 capable of driving the cutting edges to rotate are provided at the ends of the two cutting edges of the cutting shear 18, a stress section 28 is provided on one side of the opening and closing support rod 27, limiting discs 29 are provided at both ends of the stress section 28, a connecting pull rope 25 is provided on the upper surface of the limiting disc 29, the upper end of the connecting pull rope 25 is connected to a connecting hook plate 23, a pull rope through hole 31 facilitating the passing of the connecting pull rope 25 is formed on the surface of the connecting hook plate 23, a pushing trolley 6 is further provided on the bottom surface of the mounting substrate 1, a pushing arc plate 33 is provided on one side of the pushing trolley 6, sliding wheels 32 are further provided on the bottom surface of the pushing trolley 6, stress side plates are provided on both side surfaces of the pushing trolley 6, a sliding groove 35 matched with the stress side plates is formed on the bottom side surface of the mounting substrate 1, a pushing telescopic rod 34 is further provided inside the sliding groove 35, a pressure trigger switch 36 is further provided on the bottom surface of the discharging auxiliary pipe 7, and an electrical connection exists between the pressure trigger switch 36 and the pushing telescopic rod 34;

[0036] When the lifting cylinder body 8 of the discharging assembly rises to expose the sludge, the processing component plays a role in separating the exposed sludge. When the lifting cylinder body 8 rises, the lifting cylinder body 8 drives the grounding plate 16 and the cutting scissors 18 below to lift off the ground with the drive of the telescopic motor 9. As the lifting cylinder body 8 rises, the upper surface of the top limiting pile 26 gradually contacts the bottom ejector rod 24, and as the bottom surface of the bottom ejector rod 24 gradually applies pressure to the stress area at the center of the top limiting pile 26, after reaching a certain force, the top limiting pile 26 drives the cutting scissors 18 to descend. After descending a short distance, the top limiting pile 26 is restricted by the limiting ring 30 and stops descending. At this time, the cutting scissors 18 are no longer parallel to the grounding plate 16 but are below the grounding plate 16. At this time, as the lifting cylinder body 8 continues to rise, since the cutting scissors 18 are restricted by the bottom ejector rod 24 and stop rising, the height difference between the cutting scissors 18 and the lifting cylinder body 8 gradually increases. At this time, the connecting pull rope 25 between the connecting hook plate 23 and the opening and closing support rod 27 gradually tightens, and causes the two opening and closing support rods 27 to rotate inward, so that the two blades of the cutting scissors 18 shear inward to separate the sludge exposed on the bottom surface of the lifting cylinder body 8. After the two blades are closed, the opening on the bottom surface of the lifting cylinder body 8 is sealed. At this time, the lifting cylinder body 8 rises to the highest point and presses the pressure trigger switch 36. After the pressure trigger switch 36 is triggered, it drives the push rod 34 to extend through a signal, so that the pusher trolley 6 moves towards the position of the lifting cylinder body 8 to push the sludge pile sheared out below the lifting cylinder body 8 to one side. Subsequently, the push rod 34 is reset, the lifting cylinder body 8 returns to the bottom surface again under the reset of the telescopic motor 9, and the cutting scissors 18 also reopen due to the torsion spring between the two blades. When the lifting cylinder body 8 gradually descends, it is pressed by the ground and rises again to be flush with the height of the grounding plate 16. At this time, the grounding plate 16 and the blades of the cutting scissors 18 are re-assembled into a whole and fit with the ground again.

[0037] The working principle of the present invention is:

[0038] In use, the staff puts the sludge to be transported into the interior of the sludge transport box 4 from the input port 5. Subsequently, the staff turns on the drive motor 3. When the drive motor 3 is driving, the output shaft rod 12 drives the rotating rod 10 to rotate through the connection with the rotating rod 10, so as to transport the sludge inside the sludge transport box 4. During the transportation process, the electric push rod 13 between the mounting ring plate 11 and the connecting ring plate 14 will continuously reciprocate, and drive one end of the conveying thread bar 15 through the connecting strip 17 to continuously stretch the entire conveying thread bar 15. During the stretching process, the conveying thread bar 15 will push the sludge inside the sludge transport box 4 forward during the reciprocating movement, and shake off the sludge on the surface of the conveying thread bar 15. Moreover, when the conveying thread bar 15 undergoes a reciprocating stretch for a period, a flow of air towards the discharge port will also be generated, which can make it easier to push the small particle part in the sludge. After the sludge passes through the discharge port of the sludge transport box 4, it enters the discharge assembly for processing and leaves the interior of the equipment after processing;

[0039] The discharge assembly takes effect after the sludge leaves the interior of the sludge transport box 4. After the sludge leaves the interior of the sludge transport box 4, it enters the interior of the discharge auxiliary pipe 7 through the connecting feed inlet 22 and finally enters the interior of the lifting cylinder body 8 for storage. The grounding plate 16 is default to be in contact with the ground during use to prevent the sludge inside the lifting cylinder body 8 from flowing out. The buffer spring plate 20 above the interior of the discharge auxiliary pipe 7 can block the small particles brought into the interior of the discharge auxiliary pipe 7 by the air flow. After the lifting cylinder body 8 has stored the sludge for a period of time, the two telescopic motors 9 below the discharge auxiliary pipe 7 are automatically started to lift the lifting cylinder body 8 upward, exposing the sludge inside, and the subsequent processing components separate the sludge exposed by the lifting cylinder body 8. Subsequently, the lifting cylinder body 8 descends back to the ground again to accumulate sludge, so as to prevent the sludge from splashing when discharged;

[0040] When the lifting cylinder body 8 of the discharging assembly rises to expose the sludge, the treatment component plays a role in separating the exposed sludge. When the lifting cylinder body 8 rises, the lifting cylinder body 8 drives the grounding plate 16 and the cutting scissors 18 below to lift off the ground with the drive of the telescopic motor 9. As the lifting cylinder body 8 rises, the upper surface of the top limiting pile 26 gradually contacts the bottom ejector rod 24, and as the bottom surface of the bottom ejector rod 24 gradually applies pressure to the stress area at the center of the top limiting pile 26. After reaching a certain force, the top limiting pile 26 drives the cutting scissors 18 to descend, and after descending a short distance, the top limiting pile 26 is restricted by the limiting ring 30 and stops descending. At this time, the cutting scissors 18 are no longer parallel to the grounding plate 16 but are below the grounding plate 16. At this time, as the lifting cylinder body 8 continues to rise, because the cutting scissors 18 are restricted by the bottom ejector rod 24 and stop rising, the height difference between the cutting scissors 18 and the lifting cylinder body 8 gradually increases. At this time, the connecting pull rope 25 between the connecting hook plate 23 and the opening and closing support rod 27 gradually tightens, and causes the two opening and closing support rods 27 to rotate inward, so that the two blades of the cutting scissors 18 shear inward, separating the sludge exposed on the bottom surface of the lifting cylinder body 8. After the two blades are closed, the opening on the bottom surface of the lifting cylinder body 8 is sealed. At this time, the lifting cylinder body 8 rises to the highest point and presses the pressure trigger switch 36. After the pressure trigger switch 36 is triggered, it drives the push rod 34 to extend through a signal, causing the material pushing trolley 6 to move towards the position of the lifting cylinder body 8, and pushing the sludge pile cut out below the lifting cylinder body 8 to one side. Subsequently, the push rod 34 is reset, the lifting cylinder body 8 returns to the bottom surface again under the reset of the telescopic motor 9, and the cutting scissors 18 also reopen due to the torsion spring between the two blades. When the lifting cylinder body 8 gradually descends, it is pressed by the ground and rises again to be flush with the grounding plate 16. At this time, the grounding plate 16 and the blades of the cutting scissors 18 are re - combined into a whole and fit with the ground again.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A telescopic sludge discharging device for a sludge dewatering screw conveyor, characterized in that, Comprising: An installation substrate (1), on the upper surface of the installation substrate (1) there is an installation platform (2), on the upper surface of the installation platform (2) there is a driving motor (3), and on the upper surface of the installation substrate (1) there is also a sludge conveying mechanism, and the sludge conveying mechanism includes a conveying component and a discharging component; The conveying component includes: a sludge conveying box (4), the sludge conveying box (4) is located on the upper surface of the installation substrate (1), one end of the sludge conveying box (4) is provided with a discharging port, on the upper surface of the sludge conveying box (4) there is a feeding port (5), inside the sludge conveying box (4) there is a rotating rod (10), one end of the rotating rod (10) is provided with an output shaft rod (12), one end of the output shaft rod (12) is connected to the output end of the driving motor (3), and on the surface of the rotating rod (10) there is a conveying thread strip (15); The discharging component includes: a discharging auxiliary pipe (7), the discharging auxiliary pipe (7) is located on one side surface of the sludge conveying box (4), one end of the discharging auxiliary pipe (7) is provided with a connecting feeding port (22), the connecting feeding port (22) is connected to the discharging port of the sludge conveying box (4), on the inner upper surface of the discharging auxiliary pipe (7) there is a buffer spring plate (20), on one side surface of the buffer spring plate (20) there is a connecting spring (21), the other end of the connecting spring (21) is connected to the inner upper surface of the discharging auxiliary pipe (7), on the inner bottom surface of the discharging auxiliary pipe (7) there is a liftable lifting cylinder body (8), and on the bottom surface of the lifting cylinder body (8) there is a grounding plate (16).

2. The retractable sludge discharging device for a sludge dewatering screw conveyor according to claim 1, wherein: The conveying thread strip (15) is wound around the surface of the rotating rod (10), one end of the conveying thread strip (15) close to the discharging port is fixedly connected to the surface of the rotating rod (10), and the other end of the conveying thread strip (15) is provided with a connecting support strip (17).

3. The retractable sludge discharging device for a sludge dewatering screw conveyor according to claim 2, characterized in that: The other end of the connecting support strip (17) is provided with a connecting ring plate (14), the connecting ring plate (14) is sleeved on the surface of the output shaft rod (12), and on the surface of the output shaft rod (12) there is also an installation ring plate (11) that cooperates with the connecting ring plate (14), and between the connecting ring plate (14) and the installation ring plate (11) there is an electric push rod (13).

4. The retractable sludge discharging device for the sludge dewatering screw conveyor according to claim 1, wherein: On the two side surfaces of the lifting cylinder body (8) there are respectively a connecting hook plate (23) and a side plate, on the side surface of the discharging auxiliary pipe (7) there is also a side plate piece (19), and between the side plate piece (19) and the side plate there is a telescopic motor (9), and between the upper surface of the connecting hook plate (23) and the bottom surface of the discharging auxiliary pipe (7) there is also a telescopic motor (9).

5. The retractable sludge discharging device for a sludge dewatering screw conveyor according to claim 1, characterized in that: The discharging assembly further includes a processing component, and the processing component includes: a cutting shear (18), the cutting shear (18) is located at the bottom surface of the lifting cylinder body (8), a top limiting pile (26) is arranged on the upper surface of the cutting shear (18), a stress area is arranged on the upper surface of the top limiting pile (26), a bottom ejecting rod (24) matched with the stress area is arranged on the bottom surface of the discharging auxiliary pipe (7), and a limiting ring (30) matched with the top limiting pile (26) is formed on the upper surface of the grounding plate (16).

6. The retractable sludge discharging device for a sludge dewatering screw conveyor according to claim 5, wherein: Both ends of the two blades of the cutting shear (18) are respectively provided with opening and closing support rods (27) capable of driving the blades to rotate. A stress section (28) is arranged on one side of the opening and closing support rod (27). Limiting discs (29) are arranged at both ends of the stress section (28). A connecting pull rope (25) is arranged on the upper surface of the limiting disc (29). The upper end of the connecting pull rope (25) is connected with a connecting hook plate (23). A pull rope through hole (31) facilitating the passing of the connecting pull rope (25) is formed on the surface of the connecting hook plate (23).

7. The retractable sludge discharging device for a sludge dewatering screw conveyor according to claim 1, wherein: A pushing trolley (6) is further arranged on the bottom surface of the mounting substrate (1). A pushing arc plate (33) is arranged on one side of the pushing trolley (6). Sliding wheels (32) are further arranged on the bottom surface of the pushing trolley (6). Stress side plates are arranged on both side surfaces of the pushing trolley (6).

8. The retractable sludge discharging device for a sludge dewatering screw conveyor according to claim 7, characterized in that: A sliding groove (35) matched with the stress side plates is formed on the bottom side surface of the mounting substrate (1). A pushing telescopic rod (34) is further arranged inside the sliding groove (35). A pressure trigger switch (36) is further arranged on the bottom surface of the discharging auxiliary pipe (7). An electrical connection exists between the pressure trigger switch (36) and the pushing telescopic rod (34).

Images