Rotary drum type precision filter

Abstract

The utility model relates to the technical field of filters, in particular to a rotary drum type precision filter which comprises a shell, a roller is rotatably connected in the shell, a backwashing pipe is arranged above the roller, a sewage discharge groove is fixedly connected to the position, close to the roller, in the shell, and a collecting groove is fixedly connected to the position, close to the roller, of the sewage discharge groove. A collecting groove is formed in the roller, a limiting rod is fixedly connected to the interior of the collecting groove, an adjusting block is slidably connected to the outer portion of the limiting rod, and a rubber scraping piece is fixedly connected to the side, close to the roller, of the adjusting block. The inner wall of the roller can be cleaned, the effect of cleaning the inner wall of the roller is achieved, the problem that some viscous substances attached to the inner wall cannot be completely flushed due to the fact that a back flushing mode is adopted when the roller is cleaned is solved, and the cleanliness of the inner wall of the roller is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a rotary drum type precision filter. Background Art

[0002] A rotary drum filter is a high-precision filtration device that uses a physical filter screen or drum to remove solid particles and impurities from liquids. This type of filter offers advantages such as high filtration efficiency, automatic operation, high flow rate handling, low energy consumption, long life, and stability.

[0003] The existing rotary drum precision filter injects sewage into the drum and filters the sewage through the rotation of the drum. However, when cleaning the drum, backwashing is used, which causes some sticky substances attached to the inner wall to be unable to be completely washed away. Utility Model Content

[0004] The purpose of the utility model is to provide a rotary drum precision filter to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary drum precision filter, comprising an outer shell, a drum being rotatably connected to the inside of the outer shell, a backwash pipe being arranged above the drum, a sewage trough being fixedly connected to the inside of the outer shell near the drum position, a collecting trough being fixedly connected to the sewage trough near the drum position, a limiting rod being fixedly connected to the inside of the collecting trough, an adjusting block being slidably connected to the outside of the limiting rod, a rubber scraper being fixedly connected to the side of the adjusting block close to the drum, and a pushing assembly being arranged at the end of the adjusting block away from the drum.

[0006] Preferably, the pushing assembly includes a pushing block, which is fixedly connected to the side of the adjusting block away from the roller. The side of the pushing block away from the adjusting block is rotatably connected to a screw, and an adjusting assembly is provided outside the screw.

[0007] Preferably, the adjustment assembly includes a worm wheel, a worm is meshed on the outside of the worm wheel, one end of the worm is fixedly connected to a support rod, one end of the support rod is rotatably connected to a support plate away from the worm, and the support plate is fixedly connected to the inside of the housing.

[0008] Preferably, the worm is fixedly connected to a toggle wheel at one end away from the support rod, the toggle wheel is rotatably connected inside the shell, a rotation groove is provided in the shell near the toggle wheel, and the toggle wheel is rotatably connected inside the rotation groove.

[0009] Preferably, a water inlet is fixedly connected to one end of the shell, the water inlet is communicated with the interior of the drum, and a driving assembly is provided on a side of the drum away from the water inlet.

[0010] Preferably, the driving assembly includes a motor, the motor is fixedly connected to the side of the housing away from the water inlet, and the output end of the motor is fixedly connected to the side of the drum away from the water inlet.

[0011] Compared with the existing technology, the beneficial effect of the present invention is: rotating the worm drives the worm wheel to rotate, and the worm wheel drives the screw to rotate, so that the screw pushes the pushing block and the adjusting block to slide, and the adjusting block moves along the outside of the limit rod, so that the rubber scraper fits the inner wall of the drum. At this time, the inner wall of the drum can be cleaned, achieving the effect of cleaning the inner wall of the drum, solving the problem of using the backwash method when cleaning the drum, resulting in some sticky substances attached to the inner wall cannot be completely washed away, and improving the cleanliness of the inner wall of the drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 For the utility model Figure 1 A in the middle is an enlarged structural diagram;

[0014] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the present utility model;

[0015] Figure 4 This is a schematic diagram of the drum structure of the present utility model;

[0016] Figure 5 For the utility model Figure 4 The enlarged structural diagram at B in the middle;

[0017] Figure 6 This is a schematic diagram of the cross-sectional structure of the drum of the present utility model;

[0018] Figure 7 For the utility model Figure 6 The enlarged structural diagram at C in the middle;

[0019] Figure 8 This is a schematic diagram of the cross-sectional structure of the shell of the utility model;

[0020] Figure 9 For the utility model Figure 8 Enlarged structural diagram at point D in the middle.

[0021] In the accompanying drawings, the list of components represented by each number is as follows: 1. Outer casing; 2. Drum; 3. Collecting tank; 4. Adjusting block; 5. Limiting rod; 6. Rubber scraper; 7. Pushing block; 8. Screw; 9. Worm gear; 10. Worm; 11. Support rod; 12. Support plate; 13. Toggle wheel; 14. Rotating tank; 15. Drain tank; 16. Backwash pipe; 17. Motor; 18. Water inlet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1-9 The figure shows a rotary drum precision filter, including an outer shell 1, a drum 2 is rotatably connected inside the outer shell 1, a backwash pipe 16 is provided above the drum 2, a sewage trough 15 is fixedly connected to the position near the drum 2 inside the outer shell 1, and a collecting trough 3 is fixedly connected to the sewage trough 15 near the position of the drum 2, the collecting trough 3 is fixedly connected to a limit rod 5 inside the collecting trough, and an adjusting block 4 is slidably connected to the outside of the limit rod 5, and a rubber scraper 6 is fixedly connected to the side of the adjusting block 4 close to the drum 2, and a pushing assembly is provided at the end of the adjusting block 4 away from the drum 2, and the pushing assembly includes a pushing block 7, which is fixedly connected to the side of the adjusting block 4 away from the drum 2, and the pushing block 7 is rotatably connected to the side of the adjusting block 4 away from the adjusting block 4, and an adjusting assembly is provided outside the screw 8.

[0024] During operation, after the drum 2 inside the shell 1 has filtered, the screw 8 is adjusted to push the pushing block 7 through the adjustment component, so that the pushing block 7 pushes the adjusting block 4, and the rubber scraper 6 is attached to the inner wall of the drum 2. At this time, the backwashing pipe 16 is used to flush the dirt along the collection tank 3 into the inner wall of the sewage tank 15. At this time, the sewage cleaned from the inner wall of the drum 2 can be discharged along the sewage tank 15, achieving the effect of cleaning the inner wall of the drum 2. This solves the problem that when cleaning the drum 2, some sticky substances attached to the inner wall cannot be completely flushed due to the backwashing method of the backwashing pipe 16, thereby improving the cleanliness of the inner wall of the drum 2.

[0025] See also Figure 2 、 Figure 4 and Figure 5 In the figure, the adjustment component includes a worm gear 9, a worm 10 is meshed with the outside of the worm gear 9, one end of the worm 10 is fixedly connected to a support rod 11, the end of the support rod 11 away from the worm 10 is rotatably connected to a support plate 12, the support plate 12 is fixedly connected to the inside of the housing 1, the end of the worm 10 away from the support rod 11 is fixedly connected to a toggle wheel 13, the toggle wheel 13 is rotatably connected to the inside of the housing 1, and a rotation groove 14 is opened in the housing 1 near the toggle wheel 13, and the toggle wheel 13 is rotatably connected inside the rotation groove 14.

[0026] During operation, when the toggle wheel 13 is rotated outside the housing 1, the toggle wheel 13 is rotated inside the rotating groove 14. At this time, the toggle wheel 13 can drive the worm 10 to rotate, and the worm 10 supports the support rod 11 through the support plate 12 when rotating, so that the worm 10 and the support rod 11 rotate on one side of the support plate 12, and the rotation of the worm 10 drives the worm wheel 9 to rotate, thereby driving the screw 8 to move inside the worm wheel 9. In this way, the position of the pushing block 7 is adjusted, so that the pushing block 7 pushes the adjusting block 4 to move, thereby achieving the effect of quickly adjusting the adjusting block 4 to allow the rubber scraper 6 to clean, and improving the convenience of adjusting the position of the adjusting block 4.

[0027] See also Figure 1 、 Figure 3 、 Figure 4 and Figure 6 In the figure, one end of the shell 1 is fixedly connected to the water inlet 18, and the water inlet 18 is connected to the inside of the drum 2. A driving component is provided on the side of the drum 2 away from the water inlet 18. The driving component includes a motor 17. The motor 17 is fixedly connected to the side of the shell 1 away from the water inlet 18, and the output end of the motor 17 is fixedly connected to the side of the drum 2 away from the water inlet 18.

[0028] During operation, sewage can be injected into the drum 2 inside the shell 1 along the water inlet 18 for filtration. During filtration, the motor 17 on one side of the shell 1 can drive the drum 2 to rotate inside the shell 1, thereby achieving the effect of rotating filtration.

[0029] Working principle: After the drum 2 inside the shell 1 is filtered, the screw 8 is adjusted to push the push block 7 through the adjustment component, so that the push block 7 pushes the adjustment block 4, and the rubber scraper 6 is attached to the inner wall of the drum 2. At this time, the backwash pipe 16 is used to flush the dirt along the collection tank 3 and discharge it into the inner wall of the sewage tank 15. At this time, the sewage cleaned from the inner wall of the drum 2 can be discharged along the sewage tank 15, achieving the effect of cleaning the inner wall of the drum 2. It solves the problem that when cleaning the drum 2, some sticky substances attached to the inner wall cannot be completely flushed due to the backwashing method of the backwash pipe 16, thereby improving the cleanliness of the inner wall of the drum 2. When the toggle wheel 13 is rotated outside the shell 1, the toggle wheel 13 is rotated inside the rotating groove 14. At this time, the toggle wheel 1 3 can drive the worm 10 to rotate, and the worm 10 supports the support rod 11 through the support plate 12 when rotating, so that the worm 10 and the support rod 11 can rotate on one side of the support plate 12, and the rotation of the worm 10 drives the worm wheel 9 to rotate, thereby driving the screw 8 to move inside the worm wheel 9. In this way, the position of the pushing block 7 is adjusted, so that the pushing block 7 pushes the adjusting block 4 to move, thereby achieving the effect of quickly adjusting the adjusting block 4 to allow the rubber scraper 6 to clean, and improving the convenience of adjusting the position of the adjusting block 4. The sewage can be injected into the drum 2 inside the shell 1 along the water inlet 18 for filtering. During filtering, the motor 17 can be allowed to drive the drum 2 to rotate inside the shell 1 on one side of the shell 1, thereby achieving the effect of rotating filtration.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary drum precision filter, comprising a housing (1), characterized in that: The housing (1) is rotatably connected to a roller (2), a backwash pipe (16) is provided above the roller (2), a sewage trough (15) is fixedly connected to the housing (1) near the roller (2), the sewage trough (15) is fixedly connected to a collecting trough (3) near the roller (2), a limiting rod (5) is fixedly connected to the collecting trough (3), an adjusting block (4) is slidably connected to the outside of the limiting rod (5), a rubber scraper (6) is fixedly connected to the side of the adjusting block (4) near the roller (2), and a pushing assembly is provided at the end of the adjusting block (4) away from the roller (2).

2. A rotary drum precision filter according to claim 1, characterized in that: The pushing assembly comprises a pushing block (7), the pushing block (7) being fixedly connected to the side of the adjusting block (4) away from the roller (2), the pushing block (7) being rotatably connected to the side of the adjusting block (4) away from the adjusting block (4) with a screw rod (8), and an adjusting assembly being arranged outside the screw rod (8).

3. A rotary drum precision filter according to claim 2, characterized in that: The adjustment assembly comprises a worm wheel (9), a worm (10) meshing with the outside of the worm wheel (9), one end of the worm (10) being fixedly connected to a support rod (11), an end of the support rod (11) being rotatably connected to a support plate (12) away from the worm (10), and the support plate (12) being fixedly connected to the inside of the housing (1).

4. A rotary drum precision filter according to claim 3, characterized in that: The worm (10) is fixedly connected to a toggle wheel (13) at one end away from the support rod (11), and the toggle wheel (13) is rotatably connected to the inside of the housing (1). The housing (1) is provided with a rotation groove (14) near the toggle wheel (13), and the toggle wheel (13) is rotatably connected to the inside of the rotation groove (14).

5. A rotary drum precision filter according to claim 4, characterized in that: One end of the housing (1) is fixedly connected to a water inlet (18), the water inlet (18) is communicated with the interior of the drum (2), and a drive assembly is provided on a side of the drum (2) away from the water inlet (18).

6. A rotary drum precision filter according to claim 5, characterized in that: The driving assembly comprises a motor (17), the motor (17) being fixedly connected to a side of the housing (1) away from the water inlet (18), and an output end of the motor (17) being fixedly connected to a side of the drum (2) away from the water inlet (18).

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