Sludge dewatering pressure filtering device

Abstract

The utility model relates to the technical field of sludge dewatering, in particular to a sludge dewatering pressure filtering device, which not only can be used for cleaning a filter cartridge, reducing the replacement frequency of the filter cartridge and saving the production cost, but also can be used for carrying out secondary filter pressing on sludge and ensuring the filter pressing effect. Comprising a filter cartridge; the sludge filter press further comprises a filter pressing mechanism, a driving mechanism, a conveying mechanism, a reciprocating mechanism and a sweeping mechanism, the filter pressing mechanism is installed on the filter cartridge and conducts filter pressing on sludge, the driving mechanism is installed on the filter pressing mechanism and drives the sludge to be conveyed forwards, and the conveying mechanism is installed on the driving mechanism and extrudes the sludge. The reciprocating mechanism is mounted on the filter cartridge and drives the cleaning mechanism to rotate, and the cleaning mechanism is mounted on the reciprocating mechanism and cleans the filter cartridge.

Description

Technical Field

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

[0002] Wastewater produces a large amount of sludge after sedimentation treatment. Even after concentration and digestion, the water content is still as high as 96%, and the volume is very large, making it difficult to dispose of. It must be dewatered to increase the solid content of the sludge cake in order to reduce the land area occupied by sludge piles.

[0003] Existing sludge dewatering pressure filtration devices, such as the pressure filtration type sludge dewatering device disclosed in utility model patent application number 202421016122.5, mainly include a motor. A first transmission rod is fixedly connected to the upper output end of the motor. A first baffle is fixedly sleeved above the first transmission rod. A partition plate abuts against the lower part of the first baffle plate. A stirring tank is fixedly sleeved on the outer side of the partition plate, and the stirring tank is movably sleeved on the outer side of the first transmission rod. In use, the base is placed on a horizontal plane, sewage and sedimentation chemicals are added to the stirring tank, and the motor is started. The motor drives the stirring rod to rotate through the first transmission rod. The rotating stirring rod stirs the sewage and sedimentation chemicals to react and produce sludge. The first transmission rod drives the first baffle plate to rotate. When the first baffle plate rotates to the point where the second connecting hole is aligned with the second outlet, the sludge in the stirring tank enters the distribution pipe through the second connecting hole and the second outlet.

[0004] However, most existing filtration devices require frequent replacement of filter plates, which increases the investment costs for enterprises. Moreover, most existing pressure filtration devices only filter sludge once, resulting in poor filtration efficiency. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a sludge dewatering pressure filtration device that not only cleans the filter cartridge, reducing the number of filter cartridge replacements and saving production costs, but also performs secondary pressure filtration on the sludge, ensuring the pressure filtration effect.

[0006] This utility model discloses a sludge dewatering pressure filtration device, including a filter cylinder; it also includes a filter pressing mechanism, a driving mechanism, a conveying mechanism, a reciprocating mechanism, and a cleaning mechanism. The filter pressing mechanism is installed on the filter cylinder and presses the sludge for filtration. The driving mechanism is installed on the filter pressing mechanism and drives the sludge to be conveyed forward. The conveying mechanism is installed on the driving mechanism and squeezes the sludge. The reciprocating mechanism is installed on the filter cylinder and drives the cleaning mechanism to rotate. The cleaning mechanism is installed on the reciprocating mechanism and cleans the filter cylinder. The sludge is conveyed into the filter pressing mechanism, the driving mechanism drives the filter pressing mechanism to press the sludge for filtration and moves the sludge forward. The sludge is fed into the filter cylinder. The driving mechanism drives the conveying mechanism to rotate and move the sludge while simultaneously squeezing the sludge a second time to squeeze out the water from the sludge. The reciprocating mechanism drives the cleaning mechanism to move back and forth, facilitating the cleaning mechanism to clean the filter cylinder and ensuring filtration efficiency.

[0007] Preferably, the filter cartridge includes a feeding box, a scraper, a guide plate, a filter cartridge body, and a sludge discharge port. The bottom end of the feeding box is connected to the ground, and the inside of the feeding box is provided with a cavity. The scraper and the guide plate are installed in the cavity of the feeding box. The top end of the filter cartridge body is connected to the bottom end of the feeding box. The sludge discharge port is installed on the filter cartridge body and is connected to the inside of the filter cartridge body. The operator transports the sludge into the cavity of the feeding box, and the filter press mechanism performs a primary filter press on the sludge. The scraper removes the residual sludge on the filter press mechanism, and the sludge enters the filter cartridge body for a secondary filter press. The wastewater squeezed out by the filter press mechanism is discharged through the guide plate. After the sludge is filtered twice in the filter cartridge body, it is discharged through the sludge discharge port.

[0008] Preferably, the filter press mechanism includes a lower filter belt, an upper filter belt, two sets of first gears, and a first sprocket. The lower filter belt is installed in the cavity of the feed box, and the upper filter belt is installed in the cavity of the feed box and located above the lower filter belt. The two sets of first gears are respectively installed on the lower filter belt and the upper filter belt, and the first sprocket is installed on the lower filter belt. When sludge falls onto the lower filter belt, the drive mechanism drives the first sprocket to rotate. By setting two sets of first gears, the lower filter belt and the upper filter belt can rotate synchronously. The lower filter belt cooperates with the upper filter belt to squeeze and filter the sludge.

[0009] Preferably, the drive mechanism includes a first motor, a dual-output-shaft reducer, a first transmission shaft, a second sprocket, and a first chain. The bottom end of the first motor is connected to the top end of the filter cartridge body, the output end of the first motor is connected to the input end of the dual-output-shaft reducer, the output end of the dual-output-shaft reducer is connected to the input end of the first transmission shaft, the output end of the first transmission shaft is connected to the input end of the second sprocket, and the second sprocket and the first sprocket are connected by a first chain drive. When the first motor is started, the first motor drives the first transmission shaft and the second sprocket to rotate through the dual-output-shaft reducer, and the second sprocket drives the first sprocket to rotate through the first chain.

[0010] Preferably, the conveying mechanism includes a first rotating shaft, a spiral blade, a second drive shaft, two sets of third sprockets, and a second chain. The first rotating shaft is rotatably mounted inside the filter cartridge body, the spiral blade is mounted on the first rotating shaft, the second drive shaft is rotatably mounted on the filter cartridge body and is connected to the dual-output shaft reducer, the two sets of third sprockets are respectively mounted on the first rotating shaft and the second drive shaft, and the second chain is tensioned and mounted on the two sets of third sprockets. The dual-output shaft reducer drives the second drive shaft to rotate, the second drive shaft drives the connected third sprockets to rotate, the two sets of third sprockets are connected by the second chain, thereby driving the first rotating shaft and the spiral blade to rotate. The spiral blade drives the sludge inside the first rotating shaft to move and compress, performing secondary compression filtration on the sludge. Wastewater is discharged through the filter holes on the filter cartridge body, and sludge is discharged through the sludge discharge port.

[0011] Preferably, the reciprocating mechanism includes a second motor, a reducer, a third drive shaft, a driven shaft, two sets of fourth sprockets, a third chain, and a second gear. The second motor is mounted on the feed box, and its output end is connected to the input end of the reducer. The output end of the reducer is connected to the input end of the third drive shaft. The driven shaft is rotatably mounted on the filter cartridge body. The two sets of fourth sprockets are respectively mounted on the third drive shaft and the driven shaft. The third chain is tensioned and mounted on the two sets of fourth sprockets. The second gear is mounted on the driven shaft. When the second motor is started, it drives the third drive shaft to rotate through the reducer. The third drive shaft drives the driven shaft connected to it to rotate. The two sets of driven shafts are connected by the fourth sprockets, which in turn drive the driven shaft and the second gear to rotate.

[0012] Preferably, the cleaning mechanism includes a second rotating shaft, a spring, a half-gear, a connecting rod, a positioning plate, and a cleaning roller. The second rotating shaft is rotatably mounted on the filter cartridge body, the spring is mounted on the filter cartridge body, the half-gear is mounted on the second rotating shaft and meshes with the second gear for transmission, the connecting rod is mounted on the second rotating shaft and connected to the spring, and the positioning plate is mounted on the filter cartridge body. One end of the cleaning roller is mounted on the connecting rod, and the other end is slidably mounted on the positioning plate. The second gear and the half-gear mesh for transmission, thereby driving the second rotating shaft and the connecting rod to rotate. The connecting rod drives the cleaning roller to rotate and clean the filter cartridge body, preventing the filter holes of the filter cartridge body from becoming clogged. When the connecting rod rotates half a circle, the half-gear loses a tooth and does not mesh with the second gear. The spring drives the second rotating shaft and the connecting rod to rotate in the opposite direction, causing the cleaning roller to reset and reciprocate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the sludge is transported into the filter press mechanism, the drive mechanism drives the filter press mechanism to filter the sludge and move the sludge forward, the sludge is fed into the filter cylinder, the drive mechanism drives the conveying mechanism to rotate and move the sludge while performing secondary compression on the sludge to squeeze out the water in the sludge, the reciprocating mechanism drives the cleaning mechanism to move back and forth, which facilitates the cleaning mechanism to clean the filter cylinder and ensures filtration efficiency. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional isometric structural diagram of the filter cartridge of this utility model;

[0016] Figure 3 This is a partially enlarged cross-sectional isometric structural diagram of the filter press mechanism and drive mechanism of this utility model;

[0017] Figure 4 This is a partially enlarged cross-sectional isometric structural diagram of the conveying mechanism of this utility model;

[0018] Figure 5 This is a partially enlarged cross-sectional isometric structural diagram of the reciprocating mechanism and cleaning mechanism of this utility model;

[0019] Figure 6 This is an isometric structural diagram of the cleaning mechanism of this utility model.

[0020] In the attached diagram, the following markings are used: 01, filter cartridge; 11, feeding box; 12, scraper; 13, guide plate; 14, filter cartridge body; 15, sludge discharge port; 02, filter press mechanism; 21, lower filter belt; 22, upper filter belt; 23, first gear; 24, first sprocket; 03, drive mechanism; 31, first motor; 32, dual output shaft reducer; 33, first transmission shaft; 34, second sprocket; 35, first chain; 04, conveying mechanism; 41, the... 1. Rotating shaft; 42. Spiral blade; 43. Second drive shaft; 44. Third sprocket; 45. Second chain; 05. Reciprocating mechanism; 51. Second motor; 52. Reducer; 53. Third drive shaft; 54. Driven shaft; 55. Fourth sprocket; 56. Third chain; 57. Second gear; 06. Cleaning mechanism; 61. Second rotating shaft; 62. Spring; 63. Half gear; 64. Connecting rod; 65. Positioning plate; 66. Cleaning roller. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0022] This utility model discloses a sludge dewatering pressure filtration device, including a filter cylinder 01; it also includes a filter pressing mechanism 02, a driving mechanism 03, a conveying mechanism 04, a reciprocating mechanism 05, and a cleaning mechanism 06. The filter pressing mechanism 02 is installed on the filter cylinder 01 and performs filter pressing on the sludge. The driving mechanism 03 is installed on the filter pressing mechanism 02 and drives the sludge forward. The conveying mechanism 04 is installed on the driving mechanism 03 and compresses the sludge. The reciprocating mechanism 05 is installed on the filter cylinder 01 and drives the cleaning mechanism 06 to rotate. The cleaning mechanism 06 is installed on the reciprocating mechanism 05 and cleans the filter cylinder. The filter cylinder 01 includes a feeding box 11 and a scraper 1. 2. The filter cylinder body 14 and the sludge discharge port 15 are connected to the ground at the bottom of the feed box 11. The feed box 11 has an internal cavity. The scraper 12 and the guide plate 13 are installed in the cavity of the feed box 11. The top of the filter cylinder body 14 is connected to the bottom of the feed box 11. The sludge discharge port 15 is installed on the filter cylinder body 14 and is connected to the inside of the filter cylinder body 14. The filter press mechanism 02 includes a lower filter belt 21, an upper filter belt 22, two sets of first gears 23 and a first sprocket 24. The lower filter belt 21 is installed in the cavity of the feed box 11, and the upper filter belt 22 is installed in the feed box 11. Inside the cavity of filter cartridge 11 and above the lower pressure filter belt 21, two sets of first gears 23 are respectively installed on the lower pressure filter belt 21 and the upper pressure filter belt 22, and a first sprocket 24 is installed on the lower pressure filter belt 21; the drive mechanism 03 includes a first motor 31, a dual output shaft reducer 32, a first drive shaft 33, a second sprocket 34, and a first chain 35. The bottom end of the first motor 31 is connected to the top end of the filter cartridge body 14, the output end of the first motor 31 is connected to the input end of the dual output shaft reducer 32, the output end of the dual output shaft reducer 32 is connected to the input end of the first drive shaft 33, and the output end of the first drive shaft 33 is connected to the second sprocket 34. The input end of the sprocket 34 is connected, and the second sprocket 34 and the first sprocket 24 are connected by the first chain 35. The conveying mechanism 04 includes a first rotating shaft 41, a spiral blade 42, a second drive shaft 43, two sets of third sprockets 44 and a second chain 45. The first rotating shaft 41 is rotatably installed inside the filter cartridge body 14, the spiral blade 42 is installed on the first rotating shaft 41, the second drive shaft 43 is rotatably installed on the filter cartridge body 14 and is connected to the dual output shaft reducer 32, the two sets of third sprockets 44 are respectively installed on the first rotating shaft 41 and the second drive shaft 43, and the second chain 45 is tensioned on the two sets of third sprockets 44.During operation, the sludge is first fed into the cavity of the feeding box 11, where it falls onto the lower pressure filter belt 21. The first motor 31 is then started, driving the first transmission shaft 33 and the second sprocket 34 to rotate via a dual-output shaft reducer 32. The second sprocket 34, in turn, drives the first sprocket 24 to rotate via a first chain 35. Two sets of first gears 23 ensure synchronized rotation of the lower pressure filter belt 21 and the upper pressure filter belt 22. The lower pressure filter belt 21, in conjunction with the upper pressure filter belt 22, compresses and filters the sludge. A scraper 12 removes any remaining sludge from the lower pressure filter belt 21. Scraping removes the sludge, which then enters the filter cartridge body 14 for secondary pressure filtration. Wastewater squeezed out by the pressure filtration mechanism 02 is discharged through the guide plate 13. The dual-output shaft reducer 32 drives the second drive shaft 43 to rotate, which in turn drives the connected third sprocket 44 to rotate. The two sets of third sprockets 44 are connected by a second chain 45, which in turn drives the first rotating shaft 41 and the spiral blades 42 to rotate. The spiral blades 42 move and compress the sludge within the first rotating shaft 41, performing secondary pressure filtration. Wastewater is discharged through the filter holes on the filter cartridge body 14, and sludge is discharged through the sludge discharge port 15. Example 2

[0023] like Figures 1 to 6As shown, this utility model discloses a sludge dewatering pressure filtration device, based on Embodiment 1. The reciprocating mechanism 05 includes a second motor 51, a reducer 52, a third transmission shaft 53, a driven shaft 54, two sets of fourth sprockets 55, a third chain 56, and a second gear 57. The second motor 51 is mounted on the feeding box 11, and its output end is connected to the input end of the reducer 52. The output end of the reducer 52 is connected to the input end of the third transmission shaft 53. The driven shaft 54 ​​is rotatably mounted on the filter cartridge body 14. The two sets of fourth sprockets 55 are respectively mounted on the third transmission shaft 53 and the driven shaft 54. The third chain 56 is stretched... The cleaning mechanism 06 includes a second rotating shaft 61, a spring 62, a half-gear 63, a connecting rod 64, a positioning plate 65, and a cleaning roller 66. The second rotating shaft 61 is rotatably mounted on the filter cartridge body 14, the spring 62 is mounted on the filter cartridge body 14, the half-gear 63 is mounted on the second rotating shaft 61 and meshes with the second gear 57 for transmission, the connecting rod 64 is mounted on the second rotating shaft 61 and connected to the spring 62, the positioning plate 65 is mounted on the filter cartridge body 14, one end of the cleaning roller 66 is mounted on the connecting rod 64, and the other end is slidably mounted on the positioning plate 65.During operation, the sludge is first fed into the cavity of the feeding box 11, where it falls onto the lower pressure filter belt 21. The first motor 31 is then started, driving the first drive shaft 33 and the second sprocket 34 via a dual-output shaft reducer 32. The second sprocket 34 rotates via a first chain 35. Two sets of first gears 23 ensure synchronized rotation of the lower and upper pressure filter belts 21 and 22. The lower and upper pressure filter belts 21 work together to compress and filter the sludge. A scraper 12 removes any remaining sludge from the lower pressure filter belt 21, allowing the sludge to enter the filter cartridge body 14 for secondary filtration. The wastewater squeezed out by the filter press 02 is discharged through the guide plate 13. The dual-output shaft reducer 32 drives the second drive shaft 43, which in turn drives the connected third sprocket 44. The two sets of third sprockets 44 are connected via a second chain 45, which in turn drives the first rotating shaft 41 and the screw... The rotating blade 42 rotates, driving the sludge inside the first rotating shaft 41 to move and compress, performing secondary compression filtration. Wastewater is discharged through the filter holes on the filter cartridge body 14, and sludge is discharged through the sludge discharge port 15. The second motor 51 is started, and the second motor 51 drives the third transmission shaft 53 to rotate through the reducer 52. The third transmission shaft 53 drives the driven shaft 54 ​​connected to it to rotate. The two sets of driven shafts 54 are connected by the fourth sprocket 55, which in turn drives the driven shaft 54 ​​and the second gear 57 to rotate. The second gear 57 and the half-gear 63 mesh, which in turn drives the second rotating shaft 61 and the connecting rod 64 to rotate. The connecting rod 64 drives the cleaning roller 66 to rotate and clean the filter cartridge body 14, preventing the filter holes of the filter cartridge body 14 from clogging. When the connecting rod 64 rotates half a circle, the half-gear 63 loses a tooth and does not mesh with the second gear 57. The spring 62 drives the second rotating shaft 61 and the connecting rod 64 to rotate in the opposite direction, causing the cleaning roller 66 to reset and move back and forth.

[0024] The first electric motor 31, the dual output shaft reducer 32, the second electric motor 51, and the reducer 52 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sludge dewatering pressure filtration device, comprising a filter cartridge (01); characterized in that, It also includes a filter press (02), a drive mechanism (03), a conveying mechanism (04), a reciprocating mechanism (05), and a cleaning mechanism (06). The filter press (02) is installed on the filter cartridge (01) and filters the sludge. The drive mechanism (03) is installed on the filter press (02) and drives the sludge forward. The conveying mechanism (04) is installed on the drive mechanism (03) and squeezes the sludge. The reciprocating mechanism (05) is installed on the filter cartridge (01) and drives the cleaning mechanism (06) to rotate. The cleaning mechanism (06) is installed on the reciprocating mechanism (05) and cleans the filter cartridge.

2. The sludge dewatering pressure filtration device as described in claim 1, characterized in that, The filter cartridge (01) includes a feeding box (11), a scraper (12), a guide plate (13), a filter cartridge body (14), and a sludge discharge port (15). The bottom end of the feeding box (11) is connected to the ground. The feeding box (11) has a cavity inside. The scraper (12) is installed in the cavity of the feeding box (11). The guide plate (13) is installed in the cavity of the feeding box (11). The top end of the filter cartridge body (14) is connected to the bottom end of the feeding box (11). The sludge discharge port (15) is installed on the filter cartridge body (14) and is connected to the inside of the filter cartridge body (14).

3. The sludge dewatering pressure filtration device as described in claim 2, characterized in that, The filter press mechanism (02) includes a lower filter belt (21), an upper filter belt (22), two sets of first gears (23) and a first sprocket (24). The lower filter belt (21) is installed in the cavity of the feed box (11), and the upper filter belt (22) is installed in the cavity of the feed box (11) and located above the lower filter belt (21). The two sets of first gears (23) are respectively installed on the lower filter belt (21) and the upper filter belt (22), and the first sprocket (24) is installed on the lower filter belt (21).

4. The sludge dewatering pressure filtration device as described in claim 3, characterized in that, The drive mechanism (03) includes a first motor (31), a dual-output shaft reducer (32), a first transmission shaft (33), a second sprocket (34), and a first chain (35). The bottom end of the first motor (31) is connected to the top end of the filter cartridge body (14). The output end of the first motor (31) is connected to the input end of the dual-output shaft reducer (32). The output end of the dual-output shaft reducer (32) is connected to the input end of the first transmission shaft (33). The output end of the first transmission shaft (33) is connected to the input end of the second sprocket (34). The second sprocket (34) and the first sprocket (24) are connected by the first chain (35).

5. The sludge dewatering pressure filtration device as described in claim 4, characterized in that, The conveying mechanism (04) includes a first rotating shaft (41), a spiral blade (42), a second drive shaft (43), two sets of third sprockets (44) and a second chain (45). The first rotating shaft (41) is rotatably installed inside the filter cartridge body (14). The spiral blade (42) is installed on the first rotating shaft (41). The second drive shaft (43) is rotatably installed on the filter cartridge body (14) and is connected to the dual output shaft reducer (32). The two sets of third sprockets (44) are respectively installed on the first rotating shaft (41) and the second drive shaft (43). The second chain (45) is tensioned and installed on the two sets of third sprockets (44).

6. The sludge dewatering pressure filtration device as described in claim 2, characterized in that, The reciprocating mechanism (05) includes a second motor (51), a reducer (52), a third drive shaft (53), a driven shaft (54), two sets of fourth sprockets (55), a third chain (56), and a second gear (57). The second motor (51) is mounted on the feed box (11). The output end of the second motor (51) is connected to the input end of the reducer (52). The output end of the reducer (52) is connected to the input end of the third drive shaft (53). The driven shaft (54) is rotatably mounted on the filter cartridge body (14). The two sets of fourth sprockets (55) are respectively mounted on the third drive shaft (53) and the driven shaft (54). The third chain (56) is tensioned and mounted on the two sets of fourth sprockets (55). The second gear (57) is mounted on the driven shaft (54).

7. The sludge dewatering pressure filtration device as described in claim 6, characterized in that, The cleaning mechanism (06) includes a second rotating shaft (61), a spring (62), a half-gear (63), a connecting rod (64), a positioning plate (65), and a cleaning roller (66). The second rotating shaft (61) is rotatably mounted on the filter cartridge body (14). The spring (62) is mounted on the filter cartridge body (14). The half-gear (63) is mounted on the second rotating shaft (61) and meshes with the second gear (57) for transmission. The connecting rod (64) is mounted on the second rotating shaft (61) and connected to the spring (62). The positioning plate (65) is mounted on the filter cartridge body (14). One end of the cleaning roller (66) is mounted on the connecting rod (64), and the other end is slidably mounted on the positioning plate (65).

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