A sludge treatment equipment for water conservancy project construction

Abstract

The invention discloses a sludge treatment device for water conservancy project construction, and the invention relates to the technical field of sludge treatment. The invention comprises a scraper bar, the scraper bar is fixedly connected to the inner wall of the shell, one end of the scraper bar away from the inner wall of the shell is slidably connected to the surface of the sliding filter cartridge, the inner wall of the sliding filter cartridge is limitedly slid with the outer surface of the fixed filter cartridge, the surface of the fixed filter cartridge is rotationally connected to the surface of the impurity mechanism, one end of the fixed filter cartridge close to the bottom of the shell is fixedly connected to the top of the transmission assembly, one end of the impurity mechanism close to the bottom of the shell is limitedly slidably connected to the top of the transmission assembly, the fixed filter cartridge and the impurity mechanism rotate at different speeds, so that the sludge inside the fixed filter cartridge is more evenly distributed, and sedimentation is avoided, the scraper bar scrapes the surface of the sliding filter cartridge, and can avoid the generation of a mud layer on the surface of the sliding filter cartridge, thereby avoiding the sliding filter cartridge from being blocked and ensuring the centrifugal effect.

Description

Technical Field

[0001] The invention relates to the technical field of sludge treatment, and in particular to sludge treatment equipment for water conservancy project construction. Background Art

[0002] Water conservancy projects are projects built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and promoting benefits. Water is an indispensable and precious resource for human production and life, but its natural state does not fully meet human needs. Only by building water conservancy projects can we control water flow, prevent floods and waterlogging, and regulate and distribute water to meet the needs of people's life and production for water resources. Water conservancy projects often require dredging and treatment of riverbed sludge;

[0003] The current sludge dewatering equipment has the following technical problems. During centrifugal dewatering, the filter screen is prone to form a mud layer, which interferes with dewatering. After adding a cleaner to clean the mud layer, it will block and interfere with the centrifugal movement of the sludge. At the same time, the riverbed sludge often contains various impurities, such as garbage, branches, etc., and direct centrifugal treatment is prone to blockage. Therefore, we have proposed a sludge treatment equipment for water conservancy project construction. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a sludge treatment equipment for water conservancy project construction, comprising:

[0005] A housing, a drain pipe is disposed at the bottom of the housing, and a support leg is disposed outside the housing, and the drain pipe of the housing is controlled by a valve;

[0006] A centrifugal device having a speed regulating structure and used for differential centrifugation of sludge;

[0007] The surface of the shell is fixedly connected to the surface of the supporting legs, and the centrifugal device is fixedly installed inside the shell;

[0008] Wherein, the centrifugal device comprises:

[0009] A fixed filter cartridge, the exterior of which is provided with a sliding filter cartridge, and an impurity mechanism disposed inside the fixed filter cartridge;

[0010] A transmission assembly having a driving structure for driving the fixed filter cartridge and the impurity mechanism to rotate at a differential speed;

[0011] A scraper strip, the cross section of which is arranged in a parabolic shape, for scraping the outer side surface of the sliding filter cartridge;

[0012] The scraper strip is fixedly connected to the inner wall of the shell, and one end of the scraper strip away from the inner wall of the shell is slidably connected to the surface of the sliding filter cartridge. The inner wall of the sliding filter cartridge is limited to slide with the outer surface of the fixed filter cartridge, and the surface of the fixed filter cartridge is rotatably connected to the surface of the impurity mechanism. One end of the fixed filter cartridge close to the bottom of the shell is fixedly connected to the top of the transmission assembly, and one end of the impurity mechanism close to the bottom of the shell is limited to slide with the top of the transmission assembly. The impurity mechanism is opened to add sludge, and then the impurity mechanism is closed and the transmission assembly is started. The transmission assembly drives the fixed filter cartridge and the impurity mechanism to rotate at different speeds to generate a speed difference. The sludge leaves the impurity mechanism and enters the fixed filter cartridge and is stirred by the impurity mechanism that generates the differential speed, so that the sludge inside the fixed filter cartridge is more evenly distributed, avoiding sedimentation and improving the centrifugal effect. At the same time, the fixed filter cartridge drives the sliding filter cartridge that slides with it in a limited position to rotate, and generates relative rotation with the scraper strip. The scraper strip has an impact on the sliding filter cartridge. Scratching the surface of the cylinder can avoid the formation of mud layer on the surface of the sliding filter cylinder, thereby preventing the sliding filter cylinder from being blocked and ensuring the centrifugal effect. At the same time, it drives the sewage and fine sludge at the gap between the outer shell and the sliding filter cylinder to rotate, maintain the movement state of the sewage and fine sludge, and avoid the precipitation of fine sludge, thereby avoiding the formation of mud layer inside the outer shell. Finally, the water and fine sludge in the sludge pass through the sliding filter cylinder and enter the inner part of the outer shell, and then are discharged through the drain pipe of the outer shell. At this time, the impurities remain in the impurity mechanism, and the dehydrated sludge remains in the fixed filter cylinder. The sewage and fine sludge are discharged, completing the graded treatment of the water conservancy construction sludge. Since the cross-section of the scraper bar is set to a parabola, the contact area with the sliding filter cylinder is small, which can increase the scraping force and improve the anti-blocking effect. The parabolic smooth surface can prevent the fine sludge in the sewage from being stuck in the gap between the scraper bar and the sliding filter cylinder, avoid wear and maintain the service life, thereby ensuring the subsequent up and down floating of the sliding filter cylinder.

[0013] Furthermore, a plurality of support legs are provided, and the plurality of support legs are evenly distributed along the circumference of the outer shell; a plurality of scraper strips are provided at the interval between the outer shell and the sliding filter cartridge, and the plurality of scraper strips are evenly distributed along the circumference of the outer shell; a plurality of support legs are provided to increase the stability of the device and avoid shaking during centrifugation; a plurality of scraper strips are provided to increase the scratching effect and divide the outer shell into a plurality of equal parts, so as to avoid sewage and fine sludge from accumulating to one side when the device is impacted and tilted, avoid fine sludge from accumulating on one side of the outer shell, and avoid the formation of a mud layer on the inner wall of the outer shell.

[0014] Furthermore, a sludge filter hole is provided on the surface of the sliding filter cartridge, and the sludge filter hole is configured to be in a slot shape, and the sludge filter hole penetrates the sliding filter cartridge and the fixed filter cartridge. There are a number of sludge filter holes evenly distributed on the surface of the sliding filter cartridge, and the size of the sludge filter hole only allows sewage and fine sludge to pass through, driving the sliding filter cartridge to float up and down, and constantly changing the size of the gap between the fixed filter cartridge and the sliding filter cartridge, thereby generating a flow velocity difference, and constantly flushing at the sludge filter hole, and constantly changing the contact speed between the sludge and the fixed filter cartridge in a small range, thereby avoiding the formation of a mud layer on the inner wall of the fixed filter cartridge. At the same time, the slot-shaped sludge filter hole has a constant gap size, and can maintain the size of sludge that can pass through, thereby avoiding affecting the centrifugal purity. Sewage and fine sludge pass through the sludge filter hole and enter the interior of the outer shell.

[0015] Furthermore, the impurity mechanism includes a sliding rod, which is arranged inside the fixed filter cartridge. A top cover is provided at one end of the sliding rod away from the transmission assembly, and the top cover is threadedly connected to the sliding rod. The outer surface of the top cover is rotatably connected to the inner wall of the outer shell. The top cover is rotated and taken out to expose the fixed filter cartridge, which is convenient for sludge loading. The top cover is closed, and the top cover is sealed with the fixed filter cartridge to avoid leakage during centrifugation.

[0016] Furthermore, a connecting rod is fixedly connected to the surface of the sliding rod, and an end of the connecting rod away from the sliding rod is fixedly connected to an impurity filter cartridge, and the impurity filter cartridge is configured to be corrugated, and the outer side surface of the impurity filter cartridge is rotatably connected to the inner wall of the fixed filter cartridge, and the connecting rod is fixedly connected to the protrusion of the impurity filter cartridge, and a number of connecting rods are evenly distributed inside the impurity filter cartridge. The transmission assembly drives the sliding rod to rotate, drives the connecting rod to rotate, and drives the impurity filter cartridge to rotate. When filtering sludge and impurities, the inner wall of the fixed filter cartridge is scratched to further remove the generated mud layer and avoid clogging of the sludge filter holes.

[0017] Furthermore, the surface of the impurity filter cartridge is provided with impurity filter holes, and the impurity filter holes are provided in the depressions of the impurity filter cartridge, and a plurality of impurity filter holes are provided along the circumference of the impurity filter cartridge, and the size of the impurity filter holes does not allow impurities to pass through, and the end of the impurity filter cartridge away from the top cover is fixedly connected with a circular plate, and the surface of the circular plate is slidably connected to the inner wall of the fixed filter cartridge. After centrifugation, the sludge is dried at the gap between the fixed filter cartridge and the impurity filter cartridge, and the slide rod is taken out to drive the circular plate and the impurity filter cartridge to be removed, thereby taking out the dried sludge and impurities, and peeling off the external dried sludge. sludge, and then pour out the impurities to complete the graded recovery. A corrugated impurity filter cartridge is set to reduce the contact surface with the fixed filter cartridge, improve the scraping effect, and obtain multiple scraping surfaces to further improve the removal of the mud layer. Impurity filter holes are opened in the corrugated depressions, and a gap is left between the fixed filter cartridge to ensure the passage of sludge. The inner side of the depression protrudes towards the slide bar. Under the action of centrifugal force, impurities will accumulate in the depression on the inner side, which can reduce the contact between solid impurities and the impurity filter holes, avoid impurities clogging the impurity filter holes, and retain the impurities inside the impurity filter cartridge.

[0018] Furthermore, the transmission assembly includes a cover body, the surface of the cover body is rotatably connected to the inner wall of the outer shell, the side of the cover body close to the circular plate is fixedly connected to the bottom of the fixed filter cartridge, a limiting rod is arranged inside the cover body, the limiting rod extends to the inside of the impurity filter cartridge, and the surface of the limiting rod is limited and slidably connected to the inner wall of the sliding rod, the inner side surface of the circular plate is rotatably connected to the outer surface of the sliding rod, and the outer side surface of the circular plate is rotatably connected to the inner wall of the cover body, the limiting rod is driven to rotate, and the sliding rod that slides with it in a limited manner is driven to rotate, the circular plate cooperates with the cover body, which can prevent sludge and sewage from entering the cover body, and the cover body can also prevent sewage from leaking from the bottom of the outer shell, driving the cover body to rotate and driving the fixed filter cartridge to rotate.

[0019] Furthermore, a telescopic rod is fixedly connected to the surface of the cover body, and one end of the telescopic rod away from the cover body is fixedly connected to one end of the sliding filter cartridge close to the circular plate, and a plurality of telescopic rods are arranged at the interval between the outer shell and the fixed filter cartridge, and the plurality of telescopic rods are evenly distributed along the circumference of the cover body. When the telescopic rod is activated, the sliding filter cartridge is driven to move up and down, and the sliding filter cartridge is driven to float up and down, thereby changing the gap between the sludge filter holes of the sliding filter cartridge and the fixed filter cartridge.

[0020] Furthermore, a main gear is provided inside the cover body, and one end of the main gear away from the cover body is fixedly connected with the end of the limit rod away from the top cover, and the outside of the main gear is meshed with a sub-gear, and several sub-gears are provided inside the cover body. A gear ring is also provided inside the cover body, and the inner side of the gear ring is meshed with the sub-gear, and the side of the gear ring close to the limit rod is fixedly connected with the side of the fixed filter cartridge close to the cover body, and the surface of the gear ring is fixedly connected to the inner wall of the cover body. The surfaces of the main gear and the sub-gear are slidably connected with the inner wall of the cover body, and the number of teeth of the main gear is less than that of the gear ring. The main gear is driven to rotate, which drives the limit rod to rotate, and finally drives the impurity filter cartridge to rotate. The main gear rotates, drives the sub-gear meshed with it to rotate, drives the gear ring to rotate, and thus drives the fixed filter cartridge to rotate. Since the number of teeth of the main gear is less than that of the gear ring, the impurity filter cartridge will rotate at a lower speed than the fixed filter cartridge, and a speed difference is generated between the two. During centrifugation, the impurity filter cartridge has the effect of scratching the inner wall of the fixed filter cartridge, and can also stir the sludge to avoid sinking to the bottom and forming a mud layer.

[0021] Furthermore, a rotating shaft is fixedly connected to a side of the main gear away from the limiting rod, an end of the rotating shaft away from the main gear passes through the cover body and extends to the outside thereof, and the surface of the rotating shaft is rotatably connected to the inner side surface of the cover body, an end of the rotating shaft located outside the cover body is fixedly connected to a motor, and the rotating shaft is fixedly connected to an output end of the motor, and the surface of the motor is fixedly connected to a side of a supporting leg located at the bottom of the outer shell, and the motor is started, and the output end of the motor drives the rotating shaft to rotate, thereby driving the main gear to rotate.

[0022] The present invention has the beneficial effects:

[0023] The present invention provides a centrifugal device, so that impurities are retained inside the impurity mechanism, the dehydrated sludge is retained inside the fixed filter cartridge, and the sewage and fine sludge are discharged, thereby completing the graded treatment of the water conservancy construction sludge. The scraper bar scratches the surface of the sliding filter cartridge, which can avoid the formation of a mud layer on the surface of the sliding filter cartridge, thereby avoiding the sliding filter cartridge from being blocked and ensuring the centrifugal effect. At the same time, the sewage and fine sludge at the interval between the outer shell and the sliding filter cartridge are driven to rotate, and the movement state of the sewage and the fine sludge is maintained to avoid the precipitation of the fine sludge, thereby avoiding the formation of a mud layer inside the outer shell. Since the cross-section of the scraper bar is set to be parabolic, the contact area with the sliding filter cartridge is small, which can increase the scraping force and improve the anti-blocking effect. The parabolic smooth surface can avoid the fine sludge in the sewage from being stuck in the interval between the scraper bar and the sliding filter cartridge, thereby avoiding wear and maintaining the service life, thereby ensuring the subsequent up and down floating of the sliding filter cartridge.

[0024] The present invention arranges a sliding filter cartridge, which floats up and down, and continuously changes the size of the gap between the fixed filter cartridge and the sliding filter cartridge, thereby generating a flow rate difference, continuously flushing at the sludge filter holes, and continuously changing the contact speed between the sludge and the fixed filter cartridge in a small range, thereby avoiding the formation of a mud layer on the inner wall of the fixed filter cartridge. At the same time, the gap size of the slot-shaped sludge filter holes remains unchanged, and the size of the sludge that can pass through can be maintained, thereby avoiding affecting the centrifugal purity.

[0025] The present invention provides an impurity filter cartridge with a corrugated impurity filter cartridge, which can reduce the contact surface with the fixed filter cartridge, improve the scraping effect, and obtain multiple scraping surfaces, further improving the removal of the mud layer. Impurity filter holes are opened in the corrugated depressions, and a gap is left between the filter cartridge and the fixed filter cartridge to ensure the passage of sludge. The inner side of the depression protrudes toward the slide rod. Under the action of centrifugal force, impurities will accumulate in the depression on the inner side, which can reduce the contact between solid impurities and the impurity filter holes, avoid impurities clogging the impurity filter holes, and retain the impurities inside the impurity filter cartridge.

[0026] The present invention sets a transmission component. Since the number of teeth of the main gear is less than that of the gear ring, the impurity filter cartridge rotates at a lower speed than the fixed filter cartridge, and a speed difference is generated between the two. A speed difference is generated between the impurity filter cartridge and the fixed filter cartridge. When filtering sludge and impurities, the inner wall of the fixed filter cartridge is scratched to further remove the generated mud layer, thereby preventing the sludge filter holes from being blocked. The sludge can also be stirred to prevent the mud layer from settling to the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the sludge treatment equipment for water conservancy project construction of the present invention;

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of the housing of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the sliding filter cartridge of the present invention;

[0030] Figure 4 This is a schematic diagram of the fixed filter cartridge structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the impurity filter cartridge of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the transmission assembly of the present invention;

[0033] Figure 7 This is a schematic diagram of the cover structure of the present invention;

[0034] Figure 8 Schematic diagram of the gear ring structure of the present invention.

[0035] In the figure: 1. outer shell; 2. supporting legs; 3. centrifugal device; 31. scraper; 32. sliding filter cartridge; 33. fixed filter cartridge; 34. impurity mechanism; 341. top cover; 342. sliding rod; 343. connecting rod; 344. impurity filter cartridge; 345. impurity filter hole; 346. round plate; 35. transmission assembly; 351. limiting rod; 352. telescopic rod; 353. main gear; 354. cover body; 355. motor; 356. rotating shaft; 357. sub-gear; 358. gear ring; 36. sludge filter hole. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0037] Example 1, please refer to Figure 1-Figure 5 The present invention is a sludge treatment equipment for water conservancy project construction, comprising:

[0038] A housing 1, a drain pipe is provided at the bottom of the housing 1, and a support leg 2 is provided outside the housing 1, and the drain pipe of the housing 1 is controlled by a valve;

[0039] A centrifugal device 3, the centrifugal device 3 has a speed regulating structure and is used for differential centrifugation of sludge;

[0040] The surface of the housing 1 is fixedly connected to the surface of the support leg 2, and the centrifugal device 3 is fixedly installed inside the housing 1;

[0041] Wherein, the centrifugal device 3 comprises:

[0042] A fixed filter cartridge 33, the outside of which is provided with a sliding filter cartridge 32, and an impurity mechanism 34 arranged inside the fixed filter cartridge 33;

[0043] A transmission assembly 35, the transmission assembly 35 having a driving structure for driving the fixed filter cartridge 33 and the impurity mechanism 34 to rotate at a differential speed;

[0044] A scraper strip 31, the cross section of which is arranged in a parabolic shape, and is used to scrape the outer side surface of the sliding filter cartridge 32;

[0045] The scraper bar 31 is fixedly connected to the inner wall of the shell 1, and one end of the scraper bar 31 away from the inner wall of the shell 1 is slidably connected to the surface of the sliding filter cartridge 32. The inner wall of the sliding filter cartridge 32 is limited to slide with the outer surface of the fixed filter cartridge 33, and the surface of the fixed filter cartridge 33 is rotatably connected to the surface of the impurity mechanism 34. The end of the fixed filter cartridge 33 close to the bottom of the shell 1 is fixedly connected to the top of the transmission assembly 35, and the end of the impurity mechanism 34 close to the bottom of the shell 1 is limited to slide with the top of the transmission assembly 35. The impurity mechanism 34 is opened and sludge is added. Then the impurity mechanism 34 is closed and the transmission assembly 35 is started. The transmission assembly 35 drives the fixed filter cartridge 33 and the impurity mechanism 34 to rotate at different speeds to generate a speed difference. The sludge leaves the impurity mechanism 34 and enters the fixed filter cartridge 33, and is stirred by the impurity mechanism 34 that generates the differential speed, so that the sludge inside the fixed filter cartridge 33 is more evenly distributed, avoiding sedimentation and improving the centrifugal effect. At the same time, the fixed filter cartridge 33 drives the sliding filter cartridge 32 that slides with it to rotate, and generates relative rotation with the scraper bar 31. The strips 31 scrape the surface of the sliding filter cartridge 32 to prevent a mud layer from forming on the surface of the sliding filter cartridge 32, thereby preventing the sliding filter cartridge 32 from being blocked and ensuring the centrifugal effect. At the same time, the sewage and fine sludge at the interval between the outer shell 1 and the sliding filter cartridge 32 are driven to rotate, and the movement state of the sewage and the fine sludge is maintained to prevent the fine sludge from settling, thereby preventing a mud layer from forming inside the outer shell 1. Finally, the water in the sludge and the fine sludge pass through the sliding filter cartridge 32 and enter the inner part of the outer shell 1, and then are discharged through the drain pipe of the outer shell 1. At this time, the impurities remain in the impurities. Inside the quality control mechanism 34, the dehydrated sludge remains in the fixed filter cartridge 33, and the sewage and fine sludge are discharged, completing the graded treatment of the water conservancy construction sludge. Since the cross-section of the scraper bar 31 is set to a parabola, the contact area with the sliding filter cartridge 32 is small, which can increase the scratching force and improve the anti-blocking effect. The parabolic smooth surface can prevent the fine sludge in the sewage from being stuck in the gap between the scraper bar 31 and the sliding filter cartridge 32, avoiding wear and maintaining the service life, thereby ensuring the subsequent up and down floating of the sliding filter cartridge 32.

[0046] A plurality of support legs 2 are provided, and the plurality of support legs 2 are evenly distributed along the circumference of the outer shell 1. A plurality of scraper strips 31 are provided at the interval between the outer shell 1 and the sliding filter cartridge 32, and the plurality of scraper strips 31 are evenly distributed along the circumference of the outer shell 1. The plurality of support legs 2 are provided to increase the stability of the device and avoid shaking during centrifugation. The plurality of scraper strips 31 are provided to increase the scratching effect and divide the outer shell 1 into a plurality of equal parts. When the device is impacted and tilted, the sewage and fine sludge can be prevented from accumulating to one side, the fine sludge can be prevented from accumulating on one side of the outer shell 1, and a mud layer can be prevented from forming on the inner wall of the outer shell 1.

[0047] A sludge filter hole 36 is provided on the surface of the sliding filter cartridge 32. The sludge filter hole 36 is configured in a slot shape and penetrates the sliding filter cartridge 32 and the fixed filter cartridge 33. There are a number of sludge filter holes 36 evenly distributed on the surface of the sliding filter cartridge 32. The size of the sludge filter hole 36 only allows sewage and fine sludge to pass through, driving the sliding filter cartridge 32 to float up and down, constantly changing the size of the gap between the fixed filter cartridge 33 and the sliding filter cartridge 32, generating a flow rate difference, and constantly flushing at the sludge filter hole 36, constantly changing the contact speed between the sludge and the fixed filter cartridge 33 in a small range, avoiding the formation of a mud layer on the inner wall of the fixed filter cartridge 33. At the same time, the slot-shaped sludge filter hole 36 has a constant gap size, which can maintain the size of sludge that can pass through, avoiding affecting the centrifugal purity. Sewage and fine sludge pass through the sludge filter hole 36 and enter the interior of the housing 1.

[0048] The impurity mechanism 34 includes a slide rod 342, which is arranged inside the fixed filter cartridge 33. A top cover 341 is arranged at one end of the slide rod 342 away from the transmission assembly 35, and the top cover 341 is threadedly connected to the slide rod 342. The outer surface of the top cover 341 is rotatably connected to the inner wall of the outer shell 1. The top cover 341 is rotated and taken out to expose the fixed filter cartridge 33, which is convenient for sludge loading. The top cover 341 is closed, and the top cover 341 is sealed with the fixed filter cartridge 33 to avoid leakage during centrifugation.

[0049] A connecting rod 343 is fixedly connected to the surface of the sliding rod 342, and an end of the connecting rod 343 away from the sliding rod 342 is fixedly connected to an impurity filter cartridge 344, and the impurity filter cartridge 344 is configured to be corrugated, and the outer side surface of the impurity filter cartridge 344 is rotatably connected to the inner wall of the fixed filter cartridge 33, and the connecting rod 343 is fixedly connected to the protrusion of the impurity filter cartridge 344, and a number of connecting rods 343 are evenly distributed inside the impurity filter cartridge 344, and the transmission assembly 35 drives the sliding rod 342 to rotate, drives the connecting rod 343 to rotate, and drives the impurity filter cartridge 344 to rotate, and when filtering the sludge and impurities, the inner wall of the fixed filter cartridge 33 is scratched to further remove the generated mud layer and prevent the sludge filter hole 36 from being blocked.

[0050] The surface of the impurity filter cartridge 344 is provided with impurity filter holes 345, and the impurity filter holes 345 are provided in the depression of the impurity filter cartridge 344. There are a plurality of impurity filter holes 345 arranged along the circumference of the impurity filter cartridge 344, and the size of the impurity filter holes 345 does not allow impurities to pass through. The end of the impurity filter cartridge 344 away from the top cover 341 is fixedly connected with a circular plate 346, and the surface of the circular plate 346 is slidably connected with the inner wall of the fixed filter cartridge 33. After centrifugation, the sludge is dried at the gap between the fixed filter cartridge 33 and the impurity filter cartridge 344. The slide rod 342 is taken out to drive the circular plate 346 and the impurity filter cartridge 344 to be removed, thereby taking out the dried sludge and impurities, and peeling off The dried sludge on the outside is then poured out of the impurities to complete the graded recovery. A corrugated impurity filter cartridge 344 is set to reduce the contact surface with the fixed filter cartridge 33, improve the scraping effect, and obtain multiple scraping surfaces to further improve the removal of the mud layer. An impurity filter hole 345 is opened in the corrugated depression, and a gap is left between the fixed filter cartridge 33 to ensure the passage of sludge. The inner side of the depression protrudes towards the slide rod 342. Under the action of centrifugal force, impurities will accumulate in the depression on the inner side, which can reduce the contact between solid impurities and the impurity filter hole 345, avoid impurities clogging the impurity filter hole 345, and retain the impurities inside the impurity filter cartridge 344.

[0051] Example 2, please refer to Figure 1-Figure 8 The transmission assembly 35 includes a cover body 354, the surface of which is rotatably connected to the inner wall of the shell 1, and the side of the cover body 354 close to the circular plate 346 is fixedly connected to the bottom of the fixed filter cartridge 33. A limit rod 351 is arranged inside the cover body 354, and the limit rod 351 extends into the interior of the impurity filter cartridge 344, and the surface of the limit rod 351 is limited and slidably connected to the inner wall of the slide bar 342, the inner side surface of the circular plate 346 is rotatably connected to the outer surface of the slide bar 342, and the outer side surface of the circular plate 346 is rotatably connected to the inner wall of the cover body 354, driving the limit rod 351 to rotate, driving the slide bar 342 that slides with it to rotate, and the circular plate 346 cooperates with the cover body 354 to prevent sludge and sewage from entering the cover body 354, and the cover body 354 can also prevent sewage from leaking from the bottom of the shell 1, driving the cover body 354 to rotate, and driving the fixed filter cartridge 33 to rotate.

[0052] A telescopic rod 352 is fixedly connected to the surface of the cover body 354, and one end of the telescopic rod 352 away from the cover body 354 is fixedly connected to one end of the sliding filter cartridge 32 close to the circular plate 346, and a plurality of telescopic rods 352 are arranged at the interval between the outer shell 1 and the fixed filter cartridge 33, and the plurality of telescopic rods 352 are evenly distributed along the circumference of the cover body 354. When the telescopic rod 352 is started, the sliding filter cartridge 32 is driven to move up and down, and the sliding filter cartridge 32 is driven to float up and down, thereby changing the gap between the sliding filter cartridge 32 and the sludge filter hole 36 of the fixed filter cartridge 33.

[0053] The cover body 354 is provided with a main gear 353 inside, and one end of the main gear 353 away from the cover body 354 is fixedly connected to the end of the limit rod 351 away from the top cover 341, and the outside of the main gear 353 is meshed with a sub-gear 357, and a plurality of sub-gears 357 are provided inside the cover body 354. The cover body 354 is also provided with a gear ring 358 inside, and the inner side of the gear ring 358 is meshed with the sub-gear 357. The side of the gear ring 358 close to the limit rod 351 is fixedly connected to the side of the fixed filter cartridge 33 close to the cover body 354, and the surface of the gear ring 358 is fixedly connected to the inner wall of the cover body 354. The surfaces of the main gear 353 and the sub-gear 357 are connected to the The inner wall of the cover body 354 is slidably connected, and the number of teeth of the main gear 353 is less than that of the gear ring 358, which drives the main gear 353 to rotate, drives the limit rod 351 to rotate, and finally drives the impurity filter cartridge 344 to rotate. The main gear 353 rotates, drives the sub-gear 357 meshing with it to rotate, drives the gear ring 358 to rotate, and thus drives the fixed filter cartridge 33 to rotate. Since the number of teeth of the main gear 353 is less than that of the gear ring 358, the impurity filter cartridge 344 will rotate at a lower speed than the fixed filter cartridge 33, and the two have a speed difference. While centrifuging, the impurity filter cartridge 344 has the effect of scratching the inner wall of the fixed filter cartridge 33, and can also stir the sludge to prevent the sludge from sinking to the bottom and forming a mud layer.

[0054] A rotating shaft 356 is fixedly connected to one side of the main gear 353 away from the limiting rod 351, and one end of the rotating shaft 356 away from the main gear 353 passes through the cover body 354 and extends to the outside thereof, and the surface of the rotating shaft 356 is rotatably connected to the inner side surface of the cover body 354, and one end of the rotating shaft 356 located outside the cover body 354 is fixedly connected to a motor 355, and the rotating shaft 356 is fixedly connected to the output end of the motor 355, and the surface of the motor 355 is fixedly connected to one side of the supporting leg 2 located at the bottom of the outer shell 1. When the motor 355 is started, the output end of the motor 355 drives the rotating shaft 356 to rotate, thereby driving the main gear 353 to rotate.

[0055] When in use, rotate the top cover 341 and take it out to expose the fixed filter cartridge 33, then put in the sludge, close the top cover 341, the top cover 341 and the fixed filter cartridge 33 are sealed, and the motor 355 is started. The output end of the motor 355 drives the rotating shaft 356 to rotate, drives the main gear 353 to rotate, drives the limiting rod 351 to rotate, and finally drives the impurity filter cartridge 344 to rotate. The main gear 353 rotates, drives the sub-gear 357 meshing with it to rotate, drives the gear ring 358 to rotate, thereby driving the fixed filter cartridge 33 to rotate. Since the main gear 353 has less teeth than the gear ring 358, the impurity filter cartridge 344 will rotate at a lower speed than the fixed filter cartridge 33. When the impurity filter cartridge 344 rotates, it scratches the inner wall of the fixed filter cartridge 33 to remove the generated mud layer when filtering the sludge and impurities. The sludge passes through the impurity filter hole 345, and the impurities are retained in the impurity filter cartridge 344. The fixed filter cartridge 33 drives the limiting slide with it The movable sliding filter cartridge 32 rotates and rotates relative to the scraper bar 31 to centrifuge the sludge. Finally, the moisture and fine sludge in the sludge pass through the sliding filter cartridge 32 and enter the interior of the outer shell 1, and then are discharged through the drainage pipe of the outer shell 1. Finally, the impurities are retained in the impurity filter cartridge 344, and the dehydrated sludge remains in the fixed filter cartridge 33. The sewage and fine sludge are discharged to complete the graded treatment of the water conservancy construction sludge. While centrifuging, the telescopic rod 352 is started to drive the sliding filter cartridge 32 to move up and down, drive the sliding filter cartridge 32 to float up and down, and change the pores between the sliding filter cartridge 32 and the sludge filter holes 36 of the fixed filter cartridge 33. After centrifugation, the sludge is dried at the gap between the fixed filter cartridge 33 and the impurity filter cartridge 344. The sliding rod 342 is taken out to drive the circular plate 346 and the impurity filter cartridge 344 to be removed, thereby taking out the dried sludge and impurities, peeling off the dried sludge on the outside, and then pouring out the impurities to complete the graded recovery.

[0056] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A sludge treatment equipment for water conservancy project construction, characterized in that: include: A housing (1), a drain pipe being arranged at the bottom of the housing (1), and a supporting leg (2) being arranged outside the housing (1), and the drain pipe of the housing (1) being controlled by a valve; A centrifugal device (3), the centrifugal device (3) having a speed regulating structure and used for differential centrifugation of sludge; The surface of the housing (1) is fixedly connected to the surface of the support leg (2), and the centrifugal device (3) is fixedly installed inside the housing (1); Wherein, the centrifugal device (3) comprises: A fixed filter cartridge (33), wherein a sliding filter cartridge (32) is arranged outside the fixed filter cartridge (33), and an impurity mechanism (34) is arranged inside the fixed filter cartridge (33); A transmission assembly (35), the transmission assembly (35) having a driving structure for driving the fixed filter cartridge (33) and the impurity mechanism (34) to rotate at a differential speed; A scraper strip (31), wherein the cross section of the scraper strip (31) is arranged to be parabolic and is used to scrape the outer side surface of the sliding filter cartridge (32); The scraper strip (31) is fixedly connected to the inner wall of the outer shell (1); one end of the scraper strip (31) away from the inner wall of the outer shell (1) is slidably connected to the surface of the sliding filter cartridge (32); the inner wall of the sliding filter cartridge (32) is limitedly slidable with the outer surface of the fixed filter cartridge (33); the surface of the fixed filter cartridge (33) is rotatably connected to the surface of the impurity mechanism (34); one end of the fixed filter cartridge (33) close to the bottom of the outer shell (1) is fixedly connected to the top of the transmission assembly (35); and one end of the impurity mechanism (34) close to the bottom of the outer shell (1) is limitedly slidably connected to the top of the transmission assembly (35); The impurity mechanism (34) comprises a sliding rod (342), the sliding rod (342) being arranged inside the fixed filter cartridge (33), a top cover (341) being arranged at one end of the sliding rod (342) away from the transmission assembly (35), the top cover (341) being threadedly connected to the sliding rod (342), and an outer surface of the top cover (341) being rotatably connected to an inner wall of the outer shell (1); A connecting rod (343) is fixedly connected to the surface of the sliding rod (342); an end of the connecting rod (343) away from the sliding rod (342) is fixedly connected to an impurity filter cartridge (344); the impurity filter cartridge (344) is configured to be wave-shaped; an outer side surface of the impurity filter cartridge (344) is rotatably connected to an inner wall of a fixed filter cartridge (33); the connecting rod (343) is fixedly connected to a protrusion of the impurity filter cartridge (344); and a plurality of connecting rods (343) are evenly distributed inside the impurity filter cartridge (344).

2. The sludge treatment equipment for water conservancy project construction according to claim 1 is characterized by: A plurality of the support legs (2) are provided, and the plurality of the support legs (2) are evenly distributed along the circumference of the outer shell (1); a plurality of the scraping strips (31) are provided at the interval between the outer shell (1) and the sliding filter cartridge (32), and the plurality of the scraping strips (31) are evenly distributed along the circumference of the outer shell (1).

3. The sludge treatment equipment for water conservancy project construction according to claim 1 is characterized by: The surface of the sliding filter cartridge (32) is provided with sludge filter holes (36), the sludge filter holes (36) are arranged in a slot shape, and the sludge filter holes (36) penetrate the sliding filter cartridge (32) and the fixed filter cartridge (33), a plurality of the sludge filter holes (36) are evenly distributed on the surface of the sliding filter cartridge (32), and the size of the sludge filter holes (36) allows only sewage and fine sludge to pass through.

4. The sludge treatment equipment for water conservancy project construction according to claim 3 is characterized by: The surface of the impurity filter cartridge (344) is provided with impurity filter holes (345), and the impurity filter holes (345) are provided in a recessed position of the impurity filter cartridge (344). A plurality of impurity filter holes (345) are provided along the circumference of the impurity filter cartridge (344), and the size of the impurity filter holes (345) does not allow impurities to pass through. A circular plate (346) is fixedly connected to one end of the impurity filter cartridge (344) away from the top cover (341), and the surface of the circular plate (346) is slidably connected to the inner wall of the fixed filter cartridge (33).

5. The sludge treatment equipment for water conservancy project construction according to claim 4 is characterized by: The transmission assembly (35) comprises a cover body (354), the surface of which is rotatably connected to the inner wall of the housing (1), the side of which is close to the circular plate (346) and fixedly connected to the bottom of the fixed filter cartridge (33), a limiting rod (351) is arranged inside the cover body (354), the limiting rod (351) extends into the interior of the impurity filter cartridge (344), and the surface of the limiting rod (351) is slidably connected to the inner wall of the sliding rod (342), the inner side surface of the circular plate (346) is rotatably connected to the outer surface of the sliding rod (342), and the outer side surface of the circular plate (346) is rotatably connected to the inner wall of the cover body (354).

6. The sludge treatment equipment for water conservancy project construction according to claim 5 is characterized by: A telescopic rod (352) is fixedly connected to the surface of the cover body (354); one end of the telescopic rod (352) away from the cover body (354) is fixedly connected to one end of the sliding filter cartridge (32) close to the circular plate (346); a plurality of telescopic rods (352) are arranged at the interval between the outer shell (1) and the fixed filter cartridge (33); and the plurality of telescopic rods (352) are evenly distributed along the circumference of the cover body (354).

7. The sludge treatment equipment for water conservancy project construction according to claim 6 is characterized by: A main gear (353) is disposed inside the cover body (354), and one end of the main gear (353) away from the cover body (354) is fixedly connected to one end of the limit rod (351) away from the top cover (341). The outside of the main gear (353) is meshingly connected to a secondary gear (357), and a plurality of secondary gears (357) are disposed inside the cover body (354). A gear ring (358) is also disposed inside the cover body (354), and the gear ring (358) is fixedly connected to the top cover (341). The inner side of the gear ring (358) is meshedly connected with the secondary gear (357), the side of the gear ring (358) close to the limit rod (351) is fixedly connected to the side of the fixed filter cartridge (33) close to the cover body (354), the surface of the gear ring (358) is fixedly connected to the inner wall of the cover body (354), the surfaces of the main gear (353) and the secondary gear (357) are slidably connected to the inner wall of the cover body (354), and the number of teeth of the main gear (353) is less than that of the gear ring (358).

8. The sludge treatment equipment for water conservancy project construction according to claim 7 is characterized by: A rotating shaft (356) is fixedly connected to a side of the main gear (353) away from the limiting rod (351); an end of the rotating shaft (356) away from the main gear (353) penetrates the cover body (354) and extends to the outside thereof, and a surface of the rotating shaft (356) is rotatably connected to an inner side surface of the cover body (354); an end of the rotating shaft (356) located outside the cover body (354) is fixedly connected to a motor (355), and the rotating shaft (356) is fixedly connected to an output end of the motor (355); and a surface of the motor (355) is fixedly connected to a side of the support leg (2) located at the bottom of the housing (1).

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