Centrifugal sludge dewatering apparatus

Abstract

The application relates to a centrifugal sludge dewatering device. The application is suitable for the technical field of sludge dewatering. The technical problem to be solved by the application is to provide a centrifugal sludge dewatering device. The technical scheme adopted by the application is: a centrifugal sludge dewatering device, comprising: a supporting mechanism; a sludge centrifugal mechanism arranged in the supporting mechanism and used for centrifugal dewatering of water-containing sludge in the sludge centrifugal mechanism to obtain dewatered sludge; a flow guiding and conveying mechanism slidingly arranged in the supporting mechanism, a sludge outlet end of the flow guiding and conveying mechanism penetrating through a first end of the sludge centrifugal mechanism and reaching the inside of the sludge centrifugal mechanism, and the flow guiding and conveying mechanism being used for conveying the water-containing sludge to the inside of the sludge centrifugal mechanism; and a sludge removing mechanism slidingly arranged in the supporting mechanism, a sludge removing end of the sludge removing mechanism penetrating through a second end of the sludge centrifugal mechanism and reaching the inside of the sludge centrifugal mechanism, and the sludge removing mechanism being used for slidingly scraping off the dewatered sludge in the inside of the sludge centrifugal mechanism.

Description

Technical Field

[0001] This utility model relates to the field of sludge dewatering technology, and in particular to a centrifugal sludge dewatering device. Background Technology

[0002] Sludge treatment is a crucial step in wastewater treatment, aiming to reduce sludge volume, lower treatment costs, and meet environmental emission standards. Sludge dewatering and sludge drying are two main methods in sludge treatment. Sludge dewatering primarily removes water from sludge mechanically to reduce its volume, facilitating subsequent processing or disposal. Sludge dewatering equipment, especially centrifugal dewatering equipment, is widely used in industrial and municipal wastewater treatment plants due to its high efficiency and continuous operation.

[0003] When the sludge centrifugal dewatering equipment is operating, the sludge is fed into the high-speed rotating centrifuge drum, where centrifugal force separates the sludge from the water. The heavier solid material (sludge) adheres to the drum wall due to the greater centrifugal force, while the lighter liquid material (water) moves towards the center and is discharged.

[0004] However, most current sludge centrifugal dewatering equipment has certain limitations: after dewatering, a large amount of sludge often remains inside the centrifuge drum. This residual sludge not only occupies internal space but may also affect the dewatering efficiency and effect during subsequent uses. To ensure the normal operation of the equipment and maintain high-efficiency dewatering performance, the centrifuge drum usually needs to be cleaned after each use. The traditional method is to manually disassemble the centrifuge drum, manually remove the accumulated sludge, and then reassemble it. This process is not only time-consuming and labor-intensive, increasing labor costs, but frequent disassembly and reassembly can also lead to wear and tear on equipment parts, shortening the equipment's lifespan. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a centrifugal sludge dewatering device to address the above-mentioned problems.

[0006] The technical solution adopted by this utility model is: a centrifugal sludge dewatering device, comprising:

[0007] Supporting institutions;

[0008] The sludge centrifuge mechanism, located inside the support structure, is used to centrifuge the water-containing sludge inside itself to obtain dewatered sludge.

[0009] The guide and conveying mechanism is slidably disposed inside the support mechanism. The sludge outlet end of the guide and conveying mechanism penetrates through the first end of the sludge centrifuge mechanism and extends into the interior of the sludge centrifuge mechanism, and is used to convey water-containing sludge into the interior of the sludge centrifuge mechanism.

[0010] The sludge removal mechanism is slidably installed inside the support mechanism. The sludge removal end of the sludge removal mechanism penetrates through the second end of the sludge centrifuge mechanism and extends into the interior of the sludge centrifuge mechanism, and is used to slide and scrape away the dewatered sludge inside the sludge centrifuge mechanism.

[0011] By integrating a sliding guide and conveying mechanism and a sludge removal mechanism within the sludge centrifuge unit, the automatic input of water-containing sludge and the automatic cleaning of dewatered sludge can be achieved without disassembling the centrifuge unit. This not only enhances the flexibility and adaptability of the equipment but also makes maintenance more convenient and efficient. Simultaneously, it reduces mechanical wear caused by frequent disassembly and assembly, thus helping to extend the equipment's service life.

[0012] In some embodiments, the support mechanism includes a carrier frame and a support frame. The sludge centrifuge mechanism is mounted on the support frame symmetrically arranged on the inner bottom of the carrier frame. The sludge centrifuge mechanism is provided with a sludge cleaning mechanism for cleaning the sludge inside itself. The guide conveying mechanism and the sludge removal mechanism are slidably mounted on the inner bottom of the carrier frame at both ends of the sludge centrifuge mechanism. Both the guide conveying mechanism and the sludge removal mechanism can slide back and forth along the extension direction of the carrier frame, so that the sludge outlet end of the guide conveying mechanism can extend through into the interior of the sludge centrifuge mechanism, and the sludge cleaning end of the sludge removal mechanism can extend into the interior of the sludge centrifuge mechanism.

[0013] In some embodiments, the sludge centrifuge mechanism includes a water collection hood, a dewatering centrifuge cylinder, a first support base, a second motor, and an extended ring seat. A cylindrical water collection hood is fixedly connected between the tops of a pair of support frames. The dewatering centrifuge cylinder is rotatably embedded inside the water collection hood via a rotating component. A first support base is provided on the adjacent side of the support frame near the first end of the dewatering centrifuge cylinder. The first support base is rotatably connected to the first end of the dewatering centrifuge cylinder. A second motor is installed on the wall of the first support base facing away from the dewatering centrifuge cylinder. The output end of the second motor passes through the first support base and is fixedly connected to the first end of the dewatering centrifuge cylinder. The first support base and the first end of the dewatering centrifuge cylinder are provided with corresponding sludge feeding holes. The sludge feeding holes are used by the flow guiding and conveying mechanism to send the sludge outlet end into the interior of the dewatering centrifuge cylinder. The second end of the dewatering centrifuge cylinder is rotatably connected to the sludge removal mechanism.

[0014] In some embodiments, the first end of the dewatering centrifuge is provided with a first annular groove along the circumferential direction, the first support seat is provided with a first positioning ring on the wall surface facing the first end of the dewatering centrifuge that can rotate with the first annular groove, the second end of the dewatering centrifuge is provided with an opening, and an extended ring seat is connected to the opening of the dewatering centrifuge. The extended ring seat is provided with a second annular groove, and the second end of the dewatering centrifuge rotates with the sludge removal mechanism through the second annular groove.

[0015] In some embodiments, the sludge cleaning mechanism includes a cleaning drain pipe, a backwash pipe, a booster pump, a drain pipe, a solenoid valve, and a controller. The controller and the solenoid valve are communicatively connected. The flow guiding and conveying mechanism is provided with a cleaning drain pipe that can connect to its own sludge outlet end. The top of the water collection hood is provided with a backwash pipe. The backwash pipe is connected to a booster pump via a pipe outside the hood. The booster pump is connected to an external water source. The bottom of the water collection hood is provided with a drain pipe. The flow guiding and conveying mechanism, the cleaning drain pipe, and the drain pipe are all provided with solenoid valves that can control the opening and closing of the corresponding pipes. The booster pump can pressurize the external water source and deliver it to the inside of the dewatering centrifuge through the backwash pipe to clean the dewatering centrifuge. The wastewater generated during cleaning can be discharged through the cleaning drain pipe or the drain pipe.

[0016] In some embodiments, the guiding and conveying mechanism includes a sludge conveying pipe, a sealed guide ring, a vertical sludge passage pipe, a guiding and conveying pipe, and a first driving member. The sludge conveying pipe is installed on the side wall of the support frame. The sealed guide ring is slidably sleeved on the outer wall of the sludge conveying pipe. The outer wall of the sealed guide ring is connected to a horizontally arranged guiding and conveying pipe via the vertical sludge passage pipe. The end of the sludge conveying pipe and the sealed guide ring are respectively provided with flow ports that can connect to the vertical sludge passage pipe. The end of the guiding and conveying pipe away from the support frame is connected to the first driving member. The end of the guiding and conveying pipe near the support frame penetrates the support frame and extends into the interior of the sludge centrifuge mechanism. The guiding and conveying pipe is provided with multiple sludge inlets spaced apart along its own axial direction. The first driving member is used to drive the guiding and conveying pipe to slide back and forth along the extension direction of the support frame.

[0017] In some embodiments, the first drive component includes a first control shaft, a first motor, and a second support. The first motor is mounted on the outside of the side wall of the support frame, and the first control shaft is rotatably mounted between the side wall of the support frame and the first support. The end of the first control shaft is connected to the output end of the first motor. The outer wall of the first control shaft is threaded, and the second support is threaded onto the first control shaft. The second support is slidably connected to the inner bottom of the support frame, and the top of the second support is connected to the end of the guide and conveying pipe away from the support frame.

[0018] In some embodiments, the sludge removal mechanism includes a sludge removal disc, a linkage support pipe, and a second driving member. The second end of the sludge centrifuge mechanism is provided with a sludge discharge opening. One end of the linkage support pipe is connected to a sludge removal disc located inside the sludge centrifuge mechanism. The sludge removal disc is provided with a hole that allows the sludge outlet end of the guide and conveying mechanism to extend into it. The other end of the linkage support pipe is connected to a second driving member that can block the sludge discharge opening. The second driving member is used to drive the sludge removal disc to reciprocate along the axial direction of the linkage support pipe so as to scrape out the dewatered sludge inside the sludge centrifuge mechanism through the sludge discharge opening.

[0019] In some embodiments, the second driving member includes a third bearing seat, a second control shaft, an internal threaded portion, and a third motor. The third bearing seat is slidably connected to the inner bottom of the support frame. The third bearing seat is connected to the end of the linkage support tube away from the sludge removal disc. The wall surface of the third bearing seat is provided with a second positioning ring that can rotatably engage with the second end of the sludge centrifuge mechanism, so that the third bearing seat can block the sludge discharge opening. The second control shaft is rotatably connected between the third bearing seat and the side wall of the support frame. The outer wall of the second control shaft is provided with an external thread. The second control shaft is rotatably embedded in the interior of the linkage support tube. The second control shaft is threaded with an internal threaded portion that connects to the end of the linkage support tube. The third motor is installed on the outside of the side wall of the support frame. The output end of the third motor passes through the side wall of the support frame and is connected to the end of the second control shaft away from the sludge removal disc.

[0020] In some embodiments, a guide platform is connected to the side of the third support base away from the third motor. The guide platform is slidably connected to the inner bottom of the support frame. Guide ramps are symmetrically provided on both sides of the top of the guide platform, and material collection boxes are provided on both sides of the guide platform.

[0021] The beneficial effects of this utility model are:

[0022] 1. By integrating a flow guiding and conveying mechanism and a sludge removal mechanism inside the sludge centrifuge unit, the flow guiding and conveying mechanism allows water-containing sludge to be fed into the centrifuge unit, which then automatically dewaters the sludge. The sludge removal mechanism automatically removes the dewatered sludge from the centrifuge unit. Compared to traditional manual disassembly and cleaning methods, this equipment has a high degree of automation, significantly reducing the need for manual intervention. It not only reduces reliance on manpower but also improves the overall sludge treatment efficiency.

[0023] 2. By sliding the guide conveying mechanism and the sludge removal mechanism onto the support mechanism, the sludge outlet end of the guide conveying mechanism can slide into the interior of the sludge centrifuge mechanism when sludge needs to be conveyed, and the sludge removal end of the sludge removal mechanism can slide and scrape away the dewatered sludge inside the sludge centrifuge mechanism when the dewatered sludge needs to be cleaned. The sliding design of the two makes the daily maintenance of the equipment more convenient, and the inspection or repair of key components can be completed without complicated disassembly and assembly steps, which helps to maintain the good operating condition of the equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this application.

[0025] Figure 2 yes Figure 1 A partial structural diagram.

[0026] Figure 3 yes Figure 2A structural diagram from another angle.

[0027] Figure 4 This is a structural diagram of the supporting structure in this application.

[0028] Figure 5 This is a schematic diagram of the flow guiding and conveying mechanism in this application.

[0029] Figure 6 yes Figure 5 A structural diagram from another angle.

[0030] Figure 7 This is a schematic diagram of the sludge centrifuge mechanism in this application.

[0031] Figure 8 yes Figure 7 A structural diagram from another angle.

[0032] Figure 9 This is a schematic diagram of the sludge removal mechanism in this application.

[0033] Figure 10 yes Figure 9 A structural diagram from another angle.

[0034] Figure 11 This is a partial structural diagram of the sludge cleaning mechanism in this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Support mechanism; 2. Sludge centrifuge mechanism; 3. Flow guiding and conveying mechanism; 4. Sludge removal mechanism; 5. Collection box; 6. Water collection hood; 7. Cleaning and sewage discharge pipe; 8. Backwash pipe; 9. Drain pipe; 10. Solenoid valve; 100. Support frame; 101. Bearing frame; 102. First bearing seat; 103. First control shaft; 104. First motor; 105. Sludge conveying pipe; 106. Guide platform; 107. First positioning ring; 201. Dewatering centrifuge drum; 202. Second motor; 203. First annular groove; 204. Outer ring seat; 205. Second annular groove; 206. Second positioning ring; 301. Second bearing seat; 302. Sealed guide ring; 303. Flow guiding and conveying pipe; 304. Sludge inlet; 305. Vertical sludge passage pipe; 401. Third bearing seat; 402. Sludge removal disc; 403. Third motor; 404. Second control shaft; 405. Linkage support pipe; 406. Internal threaded part.

[0037] This specification includes references to "one embodiment" or "implementation". The use of the phrase "in one embodiment" or "in an embodiment" does not necessarily refer to the same embodiment. Specific features, structures, or characteristics may be combined in any suitable manner consistent with this disclosure.

[0038] The term "comprising" is open-ended. As used in the appended claims, it does not exclude additional structures or steps.

[0039] "First," "second," etc. As used in this article, these terms serve as labels for the nouns preceding them and do not imply any type of ordering (e.g., spatial, temporal, logical, etc.). Detailed Implementation

[0040] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below with reference to specific embodiments.

[0041] Combination Figures 1 to 11 As shown, this embodiment is a centrifugal sludge dewatering device, including a support mechanism 1, a sludge centrifugal mechanism 2, a flow guiding and conveying mechanism 3, and a sludge removal mechanism 4. The sludge centrifugal mechanism 2 is housed inside the support mechanism 1, which centrifuges the water-containing sludge inside to obtain dewatered sludge. The flow guiding and conveying mechanism 3 and the sludge removal mechanism 4 are slidably arranged inside the support mechanism 1. The flow guiding and conveying mechanism 3 is located at the first end of the sludge centrifugal mechanism 2, and its sludge outlet end can penetrate through the first end of the sludge centrifugal mechanism 2 to the interior of the sludge centrifugal mechanism 2 under sliding action, thus conveying the water-containing sludge into the interior of the sludge centrifugal mechanism 2. The sludge removal mechanism 4 is located at the second end of the sludge centrifugal mechanism 2, and its sludge removal end can penetrate through the second end of the sludge centrifugal mechanism 2 to the interior of the sludge centrifugal mechanism 2 under sliding action, thus scraping away the dewatered sludge inside the sludge centrifugal mechanism 2.

[0042] In some implementation schemes, such as Figure 4 As shown, the support mechanism 1 includes a bearing frame 101 and a support frame 100. A pair of symmetrically arranged support frames 100 are provided at the inner bottom of the bearing frame 101. A sludge centrifuge mechanism 2 is installed between the support frames 100. The sludge centrifuge mechanism 2 is equipped with a sludge cleaning mechanism for cleaning the sludge inside itself. A flow guiding and conveying mechanism 3 and a sludge removal mechanism 4 are slidably installed at the inner bottom of the bearing frame 101. Both the flow guiding and conveying mechanism 3 and the sludge removal mechanism 4 can reciprocate along the extending direction of the bearing frame 101. The flow guiding and conveying mechanism 3 is located at the first end of the sludge centrifuge mechanism 2, allowing its sludge outlet end to extend through into the interior of the sludge centrifuge mechanism 2, thereby conveying water-containing sludge to the interior of the sludge centrifuge mechanism 2 via its sludge outlet end.

[0043] The sludge removal mechanism 4 is located at the second end of the sludge centrifuge mechanism 2, allowing its cleaning end to extend into the interior of the sludge centrifuge. The cleaning end of the sludge removal mechanism 4 slides inside the centrifuge to scrape out the dewatered sludge. Specifically, in this embodiment, the support frame 101 is U-shaped, providing a stable mounting foundation for the sludge centrifuge mechanism 2, the flow guiding and conveying mechanism 3, and the sludge removal mechanism 4.

[0044] In some implementation schemes, such as Figure 2 and Figure 3 As shown, the sludge centrifuge mechanism 2 includes a water collection hood 6, a dewatering centrifuge cylinder 201, a first support seat 102, a second motor 202, and an outer ring seat 204. A cylindrical water collection hood 6 is fixedly connected between the tops of a pair of support frames 100. The dewatering centrifuge cylinder 201 is rotatably embedded in the two ends of the water collection hood 6 via rotating parts. The outer wall of the dewatering centrifuge cylinder 201 is provided with an array of drainage holes, so that the dewatering centrifuge cylinder 201 can rotate relative to the water collection hood 6. The support frames 100 and the water collection hood 6 provide support for the dewatering centrifuge cylinder 201. A first support seat 102 is provided on the side adjacent to the support frame 100 near the first end of the dewatering centrifuge cylinder 201. The first support seat 102 is rotatably connected to the first end of the dewatering centrifuge cylinder 201. A second motor 202 is installed on the wall of the first support seat 102 facing away from the dewatering centrifuge cylinder 201. The output end of the second motor 202 passes through the first support seat 102 and is fixedly connected to the first end of the dewatering centrifuge cylinder 201. The first support seat 102 and the first end of the dewatering centrifuge cylinder 201 are provided with corresponding mud feeding holes. The mud feeding holes are slidably engaged with the guide and conveying pipe 303. The mud feeding holes are used by the guide and conveying mechanism 3 to send the mud outlet end into the interior of the dewatering centrifuge cylinder 201. The second end of the dewatering centrifuge cylinder 201 is rotatably connected to the sludge removal mechanism 4 through the second annular groove 205.

[0045] Furthermore, such as Figure 7 and Figure 8 As shown, the first end of the dehydration centrifuge cylinder 201 is provided with a first annular groove 203 along the circumferential direction, and the second end of the dehydration centrifuge cylinder 201 is provided with an opening. An extended ring seat 204 is connected to the opening of the dehydration centrifuge cylinder 201 and is provided with a second annular groove 205. A first positioning ring 107 is provided on the wall surface of the first support seat 102 facing the first end of the dehydration centrifuge cylinder 201, which can rotate and cooperate with the first annular groove 203.

[0046] Furthermore, in this embodiment, the second motor 202 is a servo motor, which controls the preset number of rotations and preset rotation angle of the dewatering centrifuge drum 201 with high precision, so as to ensure the position accuracy when stopping each time, so that the mud feeding hole of the dewatering centrifuge drum 201 is aligned with the mud feeding hole of the first bearing seat 102 after stopping, so as to facilitate the automated operation of the next flow guiding and conveying mechanism 3.

[0047] In some implementation schemes, such as Figure 4 , Figure 5 and Figure 6 As shown, the diversion and conveying mechanism 3 includes a sludge conveying pipe 105, a sealed guide ring 302, a vertical sludge passage pipe 305, a diversion and conveying pipe 303, and a first driving component. A horizontally arranged sludge conveying pipe 105 is installed on the side wall of the support frame 101 near the first end of the sludge centrifuge mechanism 2. The sludge conveying pipe 105 is connected to a sludge inlet pipe at the sludge inlet end that is exposed on the outer side wall of the support frame 101.

[0048] A sealed guide ring 302 is slidably fitted onto the outer wall of the sludge conveying pipe 105. The outer wall of the sealed guide ring 302 is connected to a horizontally arranged guide conveying pipe 303 via a vertical sludge passage pipe 305. The sludge conveying pipe 105 has flow ports on its end near the first support seat 102 and on the sealed guide ring 302, which can connect to the vertical sludge passage pipe 305. The end of the guide conveying pipe 303 away from the first support seat 102 is connected to a first driving member. The end of the guide conveying pipe 303 near the first support seat 102 passes through the sludge feeding hole of the first support seat 102 and can extend into the interior of the dewatering centrifuge 201. The guide conveying pipe 303 has multiple sludge inlet ports 304 spaced apart along its own axial direction. The first driving member is used to drive the guide conveying pipe 303 to slide back and forth along the extension direction of the support frame 101.

[0049] Furthermore, such as Figure 4 As shown, the first driving component includes a first control shaft 103, a first motor 104, and a second support 301. The first motor 104 is installed on the outside of the side wall of the support frame 101 near the first end of the sludge centrifuge mechanism 2. The first control shaft 103 is rotatably installed between the side wall of the support frame 101 and the first support 102. The end of the first control shaft 103 is connected to the output end of the first motor 104. The outer wall of the first control shaft 103 is threaded. The second support 301 is threaded onto the first control shaft 103. The second support 301 is slidably connected to the inner bottom of the support frame 101. The top of the second support 301 is connected to the end of the guide and conveying pipe 303 away from the first support 102. Specifically, in this embodiment, the mud conveying pipe 105 is also provided with a limiting member located on the side adjacent to the flow port. The limiting member is used to limit the sealing guide ring 302. When the sealing guide ring 302 slides along the mud conveying pipe 105 to abut the limiting member, the flow port of the mud conveying pipe 105 and the flow port of the sealing guide ring 302 are connected accordingly.

[0050] When the guiding and conveying mechanism 3 is in its initial state, the sealed guide ring 302 on the sludge conveying pipe 105 is located at the end away from the first support seat 102, and the sealed guide ring 302 drives the guiding and conveying pipe 303 to exit the interior of the sludge centrifuge mechanism 2 via the vertical sludge passage pipe 305. When water-containing sludge needs to be input into the sludge centrifuge mechanism 2, the first control shaft 103 is driven to rotate by the first motor 104. The external thread on the first control shaft 103 engages with the internal thread in the second support seat 301, allowing the second support seat 301 to move along the axis of the first control shaft 103. As shown in the figure, since the second support seat 301 is connected to the guiding and conveying pipe 303, the second support seat 301 drives the guiding and conveying pipe 303 to move along the extension direction of the support frame 101 until the guiding and conveying pipe 303 moves into the interior of the dewatering centrifuge cylinder 201. At this time, the guide pipe, via the vertical sludge passage pipe 305, drives the sealed guide ring 302 to slide on the sludge conveying pipe 105 to the end near the first support seat 102, while maintaining the flow port on the sealed guide ring 302 corresponding to the flow port on the sludge conveying pipe 105. External sludge enters the sludge conveying pipe 105 through the sludge inlet pipe, then flows into the vertical sludge passage pipe 305 through the flow port, and then flows through the guide pipe 303 to be sent into the interior of the sludge centrifuge mechanism 2 from the sludge inlet 304. The multiple sludge inlets 304 on the guide pipe 303 help to evenly distribute the sludge flow, reduce the risk of blockage, and improve sludge input efficiency.

[0051] In some implementation schemes, such as Figure 9 and Figure 10 As shown, the sludge removal mechanism 4 includes a sludge removal disc 402, a linkage support pipe 405, and a second driving component. The opening at the second end of the dewatering centrifuge cylinder 201 is the sludge discharge opening. One end of the linkage support pipe 405 is connected to the sludge removal disc 402 located inside the dewatering centrifuge cylinder 201. The sludge removal disc 402 can slide inside the dewatering centrifuge cylinder 201. The sludge removal disc 402 is provided with the same sludge feeding hole as the first bearing seat 102 and the dewatering centrifuge cylinder 201. The other end of the linkage support pipe 405 is connected to a second driving component that can block the sludge discharge opening at the second end of the dewatering centrifuge cylinder 201. The second driving component is used to drive the sludge removal disc 402 to reciprocate along the axial direction of the linkage support pipe 405 so as to scrape out the dewatered sludge inside the dewatering centrifuge cylinder 201 through the sludge discharge opening.

[0052] Furthermore, the second driving component includes a third support base 401, a second control shaft 404, an internal threaded portion 406, and a third motor 403. The third support base 401 is slidably connected to the inner bottom of the support frame 101. The third support base 401 is connected to the end of the linkage support pipe 405 away from the sludge removal disc 402. A second positioning ring 206 is provided on the wall surface of the third support base 401 facing the second end of the dewatering centrifuge cylinder 201. The second positioning ring 206 is rotatably engaged with the second annular groove 205, so that the third support base 401 can block the sludge discharge opening at the second end of the dewatering centrifuge cylinder 201. A second control shaft 404 is rotatably connected between the third support seat 401 and the side wall of the support frame 101. The outer wall of the second control shaft 404 is threaded externally. The second control shaft 404 is rotatably embedded inside the linkage support tube 405. An internal threaded part 406 is threaded onto the second control shaft 404. The internal threaded part 406 is fixedly connected to the end of the linkage support tube 405. A third motor 403 is installed on the outside of the side wall of the support frame 101. The output end of the third motor 403 passes through the side wall of the support frame 101 and is connected to the end of the second control shaft 404 away from the sludge removal disc 402.

[0053] Furthermore, in this embodiment, the sludge removal disc 402 is made of wear-resistant material, and the distance between the periphery of the sludge removal disc 402 and the inner wall of the dewatering centrifuge cylinder 201 is adjusted to a suitable distance to ensure that the dewatering centrifuge cylinder 201 will not cause significant wear to the sludge removal disc 402 during high-speed operation, and can also improve the scraping effect and scraping efficiency of the sludge removal disc 402 on the dewatering centrifuge cylinder 201.

[0054] The first end of the dewatering centrifuge cylinder 201 is rotatably engaged with the first positioning ring 107 of the first support seat 102 via the first annular groove 203. The second end of the dewatering centrifuge cylinder 201 is rotatably engaged with the second positioning ring 206 of the third support seat 401 via the second annular groove 205 of the extended ring seat 204. The cooperation between the first support seat 102 and the second support seat 301 enables the dewatering centrifuge cylinder 201 to rotate normally and stably during the sludge dewatering process. When the dewatering centrifuge cylinder 201 already contains some water-containing sludge, the guide and conveying pipe 303 is first controlled to exit the dewatering centrifuge cylinder 201, and then the second motor 202 is started. The second motor 202 will drive the dewatering centrifuge cylinder 201 to rotate at high speed to generate a strong centrifugal force, thereby achieving solid-liquid separation of the water-containing sludge through high-speed rotation.

[0055] After the dewatering process is completed, the sludge removal mechanism 4 enters the working state. The sludge removal disc 402 is initially located inside the dewatering centrifuge drum 201 near the first support seat 102. The third motor 403 is started, driving the second control shaft 404 to rotate. Due to the threaded engagement of the external and internal threads 406 on the second control shaft 404, the linkage support pipe 405 moves along the axis of the second control shaft 404 towards the second end of the dewatering centrifuge drum 201. The linkage support pipe 405 drives the sludge removal disc 402 at its end to scrape off the dewatered sludge from the inner wall of the dewatering centrifuge drum 201 and push the scraped sludge out through the sludge discharge opening. The movement distance of the sludge removal disc 402 is controlled by the third motor 403, allowing the sludge removal disc 402 to move to the second end of the dewatering centrifuge drum 201 without completely detaching from it. After the sludge removal is completed, the third motor 403 reverses, causing the linkage support pipe 405 to drive the sludge removal disc 402 back to the preset initial position near the first end inside the dewatering centrifuge cylinder 201.

[0056] In some implementations, a guide platform 106 is connected to the side of the third support 401 away from the third motor 403. The guide platform 106 is slidably connected to the inner bottom of the support frame 101. Guide ramps are symmetrically provided on both sides of the top of the guide platform 106. Collection boxes 5 are provided on both sides of the guide platform 106. The collection boxes 5 are used to collect the dewatered sludge discharged from the sludge removal disc 402 through the sludge discharge opening for centralized treatment. The guide ramps facilitate the dewatered sludge to slide into the collection box 5.

[0057] In some implementation schemes, such as Figure 5 , Figure 6 , Figure 11 As shown, the sludge cleaning mechanism includes a cleaning drain pipe 7, a backwash pipe 8, a booster pump, a drain pipe 9, a solenoid valve 10, and a controller. The controller is communicatively connected to the solenoid valve 10. The vertical sludge passage pipe 305 is connected to the cleaning drain pipe 7. The top of the water collection hood 6 is equipped with a backwash pipe 8, which is connected to a booster pump via an external pipe. The booster pump is connected to an external water source. The bottom of the water collection hood 6 is equipped with a drain pipe 9. The cleaning drain pipe 7, the section of the vertical sludge passage pipe 305 above its connection with the cleaning drain pipe 7, and the drain pipe 9 are all equipped with solenoid valves 10 that can control the opening and closing of the corresponding pipes. The booster pump can pressurize the external water source and deliver it through the backwash pipe 8 to the inside of the dewatering centrifuge drum 201 to clean the dewatering centrifuge drum 201. The wastewater generated during cleaning can be discharged through the cleaning drain pipe 7 or the drain pipe 9.

[0058] The implementation principle of a centrifugal sludge dewatering device is as follows:

[0059] sludge transportation stage

[0060] In this stage, the guiding and conveying mechanism 3 plays a crucial role. External water-containing sludge enters the sludge conveying pipe 105 through the sludge inlet pipe. Driven by the first driving component, the guiding and conveying pipe 303 moves along the extension direction of the support frame 101 until it sequentially passes through the sludge feeding holes of the first support seat 102, the dewatering centrifuge cylinder 201, and the sludge removal disc 402, and enters the interior of the dewatering centrifuge cylinder 201. During this process, the sealed guide ring 302 on the sludge conveying pipe 105 slides to one end closer to the first support seat 102, ensuring the flow ports are aligned. This allows the sludge to smoothly flow from the sludge conveying pipe 105 through the vertical sludge pipe 305 into the guiding and conveying pipe 303, and finally be evenly distributed into the dewatering centrifuge cylinder 201 through multiple sludge inlets 304.

[0061] sludge dewatering stage

[0062] After the water-containing sludge is introduced into the dewatering centrifuge drum 201, the guide and conveying pipe 303 exits the dewatering centrifuge drum 201, and the second motor 202 starts, driving the dewatering centrifuge drum 201 to rotate at high speed. Utilizing the powerful centrifugal force, the heavier solid matter (sludge) adheres to the inner wall of the dewatering centrifuge drum 201, while the lighter liquid matter (water) is discharged through the drain hole. The discharged water collects in the water collection hood 6 and flows out by gravity through the drain pipe 9 on the water collection hood 6. At this time, the first end of the dewatering centrifuge drum 201 is rotatably engaged with the first annular groove 203 through the first positioning ring 107, and the second end is rotatably engaged with the second positioning ring 206 of the third bearing seat 401 through the second annular groove 205 of the extended ring seat 204, ensuring the stability of the dewatering centrifuge drum 201 during rotation. Utilizing the centrifugal force generated by high-speed rotation for sludge dewatering reduces the sludge volume, facilitating subsequent treatment or disposal. By controlling the initial position and preset number of rotations of the second motor 202, the dewatering centrifuge 201 can be automatically reset after the second motor 202 is turned off, so that the sludge feeding holes on the dewatering centrifuge 201, the first support seat 102, and the sludge removal plate 402 are on the same axis, which facilitates the next sludge conveying through the diversion and conveying pipeline 303.

[0063] sludge removal stage

[0064] The third motor 403 starts, driving the linkage support pipe 405 to move along the second control shaft 404. The sludge removal disc 402 moves together with the linkage support pipe 405 towards the second end of the dewatering centrifuge cylinder 201, simultaneously scraping off the dewatered sludge on the inner wall and pushing it towards the sludge discharge opening. The dewatered sludge falls through the sludge discharge opening onto the guide platform 106, and is then collected and processed by the collection box 5. After the sludge removal is completed, the third motor 403 is reversed to return the sludge removal disc 402 to its initial position, preparing for the next round of operation. The automated cleaning device avoids the tedious process of manual disassembly and cleaning, improves work efficiency, reduces labor costs, and reduces the risk of equipment wear caused by frequent disassembly and assembly.

[0065] sludge washing stage

[0066] The solenoid valves 10 on the cleaning drain pipe 7 and the vertical sludge pipe 305 are initially closed. After the sludge removal mechanism 4 removes the sludge and resets, the guide conveying mechanism 3's guide conveying pipe 303 is moved into the dewatering centrifuge drum 201. Then, the solenoid valve 10 on the cleaning drain pipe 7 is opened, while the solenoid valve 10 on the drain pipe 9 is closed. Pressurized water is pumped through the backwash pipe 8 into the water collection hood 6 via the booster pump, enabling backwashing of the dewatering centrifuge drum 201. The resulting wastewater enters the guide conveying pipe 303 through the sludge inlet 304 and is then discharged through the cleaning drain pipe 7. After the set backwashing time is reached, the solenoid valve 10 on the cleaning drain pipe 7 is closed, and the guide conveying mechanism 3 is moved to its initial position, i.e., the guide conveying pipe 303 is located outside the dewatering centrifuge drum 201. At this time, open the solenoid valve 10 on the drain pipe 9 and start the dewatering centrifuge 201, so that the water in the dewatering centrifuge 201 and the water collection hood 6 is discharged under the action of centrifugal acceleration. When it is necessary to transport sludge into the dewatering centrifuge 201 again, open the solenoid valve 10 on the vertical sludge passage pipe 305 and close the solenoid valve 10 on the cleaning and sewage discharge pipe 7.

[0067] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A centrifugal sludge dewatering device, characterized in that, include: Supporting structure (1); The sludge centrifuge mechanism (2) is located inside the support mechanism (1) and is used to centrifuge the water-containing sludge inside itself to obtain dewatered sludge. The guide conveying mechanism (3) is slidably disposed inside the support mechanism (1). The sludge outlet end of the guide conveying mechanism (3) penetrates through the first end of the sludge centrifuge mechanism (2) to the inside of the sludge centrifuge mechanism (2) and is used to transport water-containing sludge to the inside of the sludge centrifuge mechanism (2). The sludge removal mechanism (4) is slidably disposed inside the support mechanism (1). The sludge removal end of the sludge removal mechanism (4) penetrates through the second end of the sludge centrifuge mechanism (2) to the inside of the sludge centrifuge mechanism (2) and is used to scrape away the dewatered sludge inside the sludge centrifuge mechanism (2).

2. The centrifugal sludge dewatering equipment according to claim 1, characterized in that: The support mechanism (1) includes a bearing frame (101) and a support frame (100). The sludge centrifuge mechanism (2) is installed on the support frame (100) which is symmetrically arranged on the inner bottom of the bearing frame (101). The sludge centrifuge mechanism (2) is provided with a sludge cleaning mechanism for cleaning the sludge inside itself. The guide conveying mechanism (3) and the sludge removal mechanism (4) are slidably installed on the inner bottom of the bearing frame (101) at both ends of the sludge centrifuge mechanism (2). The guide conveying mechanism (3) and the sludge removal mechanism (4) can slide back and forth along the extension direction of the bearing frame (101), so that the sludge outlet end of the guide conveying mechanism (3) can extend through to the interior of the sludge centrifuge mechanism (2), and the sludge cleaning end of the sludge removal mechanism (4) can extend to the interior of the sludge centrifuge mechanism (2).

3. The centrifugal sludge dewatering equipment according to claim 2, characterized in that: The sludge centrifuge mechanism (2) includes a water collection hood (6), a dewatering centrifuge cylinder (201), a first support seat (102), a second motor (202), and an outer ring seat (204). A cylindrical water collection hood (6) is fixedly connected between the tops of a pair of support frames (100). The dewatering centrifuge cylinder (201) is rotatably embedded inside the water collection hood (6) via a rotating component. The first support seat (102) is provided on the adjacent side of the support frame (100) near the first end of the dewatering centrifuge cylinder (201). The first support seat (102) rotates with the first end of the dewatering centrifuge cylinder (201). The first support (102) is mounted on the wall of the dewatering centrifuge (201) with the second motor (202) facing away from it. The output end of the second motor (202) passes through the first support (102) and is fixedly connected to the first end of the dewatering centrifuge (201). The first support (102) and the first end of the dewatering centrifuge (201) are provided with corresponding mud feeding holes. The mud feeding holes are used by the guide conveying mechanism (3) to send the mud outlet end into the interior of the dewatering centrifuge (201). The second end of the dewatering centrifuge (201) is rotatably connected to the sludge removal mechanism (4).

4. The centrifugal sludge dewatering equipment according to claim 3, characterized in that: The first end of the dehydration centrifuge tube (201) is provided with a first annular groove (203) along the circumferential direction. The first support seat (102) is provided with a first positioning ring (107) on the wall surface facing the first end of the dehydration centrifuge tube (201) that can rotate with the first annular groove (203). The second end of the dehydration centrifuge tube (201) is provided with an opening. The opening of the dehydration centrifuge tube (201) is connected to an extended ring seat (204) arranged coaxially. The extended ring seat (204) is provided with a second annular groove (205). The second end of the dehydration centrifuge tube (201) rotates with the sludge removal mechanism (4) through the second annular groove (205).

5. A centrifugal sludge dewatering device according to claim 3, characterized in that: The sludge cleaning mechanism includes a cleaning drain pipe (7), a backwash pipe (8), a booster pump, a drain pipe (9), a solenoid valve (10), and a controller. The controller and the solenoid valve (10) are connected in communication. The flow guiding and conveying mechanism (3) is equipped with a cleaning drain pipe (7) that can connect to its own sludge outlet end. The top of the water collection hood (6) is equipped with a backwash pipe (8). The backwash pipe (8) is connected to a booster pump through a pipe. The booster pump is connected to an external water source. The bottom of the water collection hood (6) is equipped with a drain pipe (9). The flow guiding and conveying mechanism (3), the cleaning drain pipe (7), and the drain pipe (9) are all equipped with solenoid valves (10) that can control the opening and closing of the corresponding pipes. The booster pump can pressurize the external water source and deliver it to the inside of the dewatering centrifuge (201) through the backwash pipe (8) to clean the dewatering centrifuge (201). The wastewater generated during cleaning can be discharged through the cleaning drain pipe (7) or the drain pipe (9).

6. A centrifugal sludge dewatering device according to claim 3, characterized in that: The guiding and conveying mechanism (3) includes a mud conveying pipe (105), a sealed guide ring (302), a vertical mud passage pipe (305), a guiding and conveying pipe (303), and a first driving component. The mud conveying pipe (105) is installed on the side wall of the support frame (101). The sealed guide ring (302) is slidably sleeved on the outer wall of the mud conveying pipe (105). The outer wall of the sealed guide ring (302) is connected to the horizontally arranged guiding and conveying pipe (303) via the vertical mud passage pipe (305). The end of the mud conveying pipe (105) is connected to the sealed guide ring (302). Each of the components is provided with a flow port that can connect to the vertical sludge pipe (305). The end of the guide and conveying pipe (303) away from the support frame (100) is connected to a first driving member. The end of the guide and conveying pipe (303) near the support frame (100) passes through the support frame (100) and extends into the interior of the sludge centrifuge mechanism (2). The guide and conveying pipe (303) is provided with multiple sludge inlets (304) spaced apart along its own axial direction. The first driving member is used to drive the guide and conveying pipe (303) to slide back and forth along the extension direction of the support frame (101).

7. A centrifugal sludge dewatering device according to claim 6, characterized in that: The first driving component includes a first control shaft (103), a first motor (104), and a second support (301). The first motor (104) is installed on the outside of the side wall of the support frame (101). The first control shaft (103) is rotatably installed between the side wall of the support frame (101) and the first support (102). The end of the first control shaft (103) is connected to the output end of the first motor (104). The outer wall of the first control shaft (103) is threaded. The second support (301) is threaded onto the first control shaft (103). The second support (301) is slidably connected to the inner bottom of the support frame (101). The top of the second support (301) is connected to the end of the guide and conveying pipe (303) away from the support frame (100).

8. A centrifugal sludge dewatering device according to claim 2, characterized in that: The sludge removal mechanism (4) includes a sludge removal disc (402), a linkage support pipe (405), and a second driving component. The second end of the sludge centrifuge mechanism (2) is provided with a sludge discharge opening. One end of the linkage support pipe (405) is connected to the sludge removal disc (402) located inside the sludge centrifuge mechanism (2). The sludge removal disc (402) is provided with a hole that facilitates the sludge discharge end of the guide conveying mechanism (3) to extend into it. The other end of the linkage support pipe (405) is connected to a second driving component that can block the sludge discharge opening. The second driving component is used to drive the sludge removal disc (402) to reciprocate along the axial direction of the linkage support pipe (405) so as to scrape out the dewatered sludge inside the sludge centrifuge mechanism (2) through the sludge discharge opening.

9. A centrifugal sludge dewatering device according to claim 8, characterized in that: The second driving component includes a third bearing seat (401), a second control shaft (404), an internal thread (406), and a third motor (403). The inner bottom of the support frame (101) is slidably connected to the third bearing seat (401). The third bearing seat (401) is connected to the end of the linkage support pipe (405) away from the sludge removal disc (402). The wall surface of the third bearing seat (401) is provided with a second positioning ring (206) that can rotate with the second end of the sludge centrifuge mechanism (2), so that the third bearing seat (401) can block the sludge discharge opening. 1) A second control shaft (404) is rotatably connected to the side wall of the support frame (101). The outer wall of the second control shaft (404) is threaded. The second control shaft (404) is rotatably embedded in the inside of the linkage support tube (405). The second control shaft (404) is threaded with an internal thread (406) that is connected to the end of the linkage support tube (405). A third motor (403) is installed on the outside of the side wall of the support frame (101). The output end of the third motor (403) passes through the side wall of the support frame (101) and is connected to the end of the second control shaft (404) away from the sludge removal disc (402).

10. A centrifugal sludge dewatering device according to claim 9, characterized in that: The third support (401) is connected to a guide platform (106) on the side away from the third motor (403). The guide platform (106) is slidably connected to the inner bottom of the support frame (101). The top two sides of the guide platform (106) are symmetrically provided with guide ramps, and the two sides of the guide platform (106) are provided with collection boxes (5).

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