Rotary drum type screen filtering device

Abstract

The utility model discloses a rotary drum type screen filtering device which comprises a filtering box, a box door is rotatably installed on one side of the filtering box, rotating shafts are rotatably installed in the two opposite inner walls of the filtering box, fixing rings are fixedly connected to one sides of the rotating shafts, a first rotary drum cross rod is fixedly connected between the two fixing rings, and a second rotary drum cross rod is fixedly connected between the first rotary drum cross rod and the second rotary drum cross rod. An annular hoop is fixedly mounted on the first rotary drum cross rod, mounting rings are fixedly mounted on the opposite sides of the two sets of fixing rings, fixing grooves are formed in the mounting rings, filter screens are arranged in the fixing grooves, mounting openings are further formed in the mounting rings, and second rotary drum cross rods are arranged on the mounting rings; and the second rotary drum cross rod is detachably mounted between the two groups of fixing rings. According to the utility model, through the quick mounting and dismounting of the filter screens, the filter screens with corresponding meshes can be selected and replaced according to the sizes of particles and suspended matters in the liquid to be filtered, so that the filtering efficiency is improved, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of filtering equipment, in particular to a rotary drum type screen filtering device. Background Art

[0002] The rotary drum filter is a high-precision filtration device, mainly used for solid-liquid separation of liquids. Through physical filtration methods, it utilizes the micropores and fiber structure on the filter medium to separate particles and suspended matter smaller than the mesh size in the liquid, thereby achieving liquid filtration.

[0003] Most of the existing drum screen filter devices have the filter medium fixedly installed on the drum frame. However, a mesh size that is too large may result in poor filtration effect, while a mesh size that is too small will increase filtration resistance and cleaning frequency. It is impossible to replace the filter medium with the corresponding mesh according to the size of particles and suspended matter in the liquid, reducing the practicality of the filter device. Utility Model Content

[0004] Aiming at the technical problem that the existing filter medium with corresponding mesh size cannot be replaced according to the size of particles and suspended matter in the liquid, thereby reducing the practicality of the filter device, the utility model provides a rotary drum screen filter device.

[0005] The technical solution adopted by the present invention is: it includes a filter box, a box door is rotatably installed on one side of the filter box, and rotating shafts are rotatably installed in the two opposite inner walls of the filter box, and a fixing ring is fixedly connected to one side of the rotating shaft, and a first drum cross bar is fixedly connected between the two groups of fixing rings, and an annular hoop is fixedly installed on the first drum cross bar, and mounting rings are fixedly installed on the opposite sides of the two groups of fixing rings, a fixing groove is provided in the mounting ring, a filter screen is provided in the fixing groove, and a mounting port is also provided on the mounting ring, and a second drum cross bar is provided on the mounting ring, and the second drum cross bar is detachably installed between the two groups of fixing rings.

[0006] Furthermore, the two sets of fixing rings are provided with mounting grooves on opposite sides, a slider is slidably installed in the mounting groove, a return spring is provided inside the mounting groove, and the two ends of the return spring are respectively fixedly connected to the bottom of the mounting groove and one side of the slider, and the two ends of the second drum cross bar are fixedly connected to the limiting blocks, and the side of the limiting block close to the slider is set with an inclined surface.

[0007] By adopting the above technical solution, the detachable installation between the second drum cross bar and the two sets of fixing rings is achieved.

[0008] Furthermore, the bottom of the installation groove and one side of the sliding block are fixedly installed with limit columns, and the return spring is movably sleeved on the outside of the two groups of limit columns.

[0009] By adopting the above technical solution, the stability of the return spring during use is improved.

[0010] Furthermore, a sliding groove is provided on the circumferential surface of the fixing ring, a paddle is slidably installed in the sliding groove, and the bottom of the paddle is fixedly connected to the upper surface of the slider.

[0011] By adopting the above technical solution, the paddle can drive the slider to move, thereby facilitating the disassembly of the second drum cross bar.

[0012] Furthermore, a feed pipe is fixedly installed in the side wall of the filter box, and one end of the feed pipe passes through the rotating shaft and is located in the filter screen.

[0013] By adopting the above technical solution, the liquid containing particles and suspended matter flows into the filter screen through the feed pipe.

[0014] Furthermore, a connecting block is fixedly installed in the filter box, a discharge trough is opened in the connecting block, a motor is fixedly installed on the filter box, transmission wheels are fixedly installed on the driving shaft of the motor and the outer circumference of the rotating shaft, and the outer parts of the two groups of transmission wheels are provided with belts.

[0015] By adopting the above technical solution, the motor provides driving force for the rotation of the filter.

[0016] Furthermore, a clean water pipe is fixedly installed in the filter box, a nozzle is fixedly connected to the clean water pipe, and the nozzle is arranged above the filter screen. A sewage pipe is passed through the side wall of the filter box away from the feed pipe, and one end of the sewage pipe is fixedly connected to a sewage trough, the sewage trough is communicated with the sewage pipe, and the sewage trough is arranged in the filter screen.

[0017] By adopting the above technical solution, clean water backflushes the filter to clean the particles and suspended matter in the filter.

[0018] The beneficial effects of the utility model are as follows: through the fixing ring matching the mounting ring, the mounting opening and the mounting groove, one end of the filter screen is inserted from the mounting opening into the fixing groove of the two sets of mounting rings, the filter screen is pushed to slide in the fixing groove, and after the filter screen slides one circle in the fixing groove, the filter screen forms a cylindrical shape, and then the second rotary drum cross bar is installed between the two sets of fixing rings. The two sets of fixing rings, the first rotary drum cross bar, the annular hoop and the second rotary drum cross bar form a rotary drum frame to fix and support the filter screen, and complete the installation of the filter screen, thereby realizing the selection of the filter screen with the corresponding mesh size according to the size of the particles and suspended matter in the liquid to be filtered to improve the filtration efficiency, thereby improving the practicality of the device, and at the same time, after long-term use, the filter screen can be disassembled for cleaning or replacement to ensure the normal use of the filter device;

[0019] The slider cooperates with the return spring, the limit block and the paddle to realize the detachable installation between the second drum cross bar and the two sets of fixing rings, which facilitates the installation and replacement of the filter screen and is simple and quick to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the filter box in the present utility model;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the filter box in the present utility model;

[0023] Figure 4 For attachment Figure 3 A in the middle is an enlarged structural diagram;

[0024] Figure 5 This is a schematic diagram of the assembly of the second drum cross bar and the fixing ring in the present invention;

[0025] Figure 6 It is a structural schematic diagram of the installation ring in the utility model.

[0026] The numbers in the figure are: 1. filter box; 2. box door; 3. feed pipe; 4. drain pipe; 5. fixing ring; 6. connecting block; 7. discharge chute; 8. motor; 9. transmission wheel; 10. belt; 11. rotating shaft; 12. first drum cross bar; 13. annular hoop; 14. second drum cross bar; 15. filter screen; 16. clean water pipe; 17. nozzle; 18. drain chute; 19. mounting groove; 20. reset spring; 21. slider; 22. paddle; 23. limit block; 24. mounting ring; 25. mounting port; 26. fixing groove; 27. limit column; 28. slide groove. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0029] The following is combined with Figure 1-6 The utility model is further described.

[0030] In order to solve the problems existing in the background technology, the present application proposes the following technical solution: it includes a filter box 1, a box door 2 is rotatably installed on one side of the filter box 1, and a rotating shaft 11 is rotatably installed on the two opposite inner walls of the filter box 1. A fixing ring 5 is fixedly connected to one side of the rotating shaft 11, and a first drum cross bar 12 is fixedly connected between the two groups of fixing rings 5. An annular hoop 13 is fixedly installed on the first drum cross bar 12. A mounting ring 24 is fixedly installed on the opposite side of the two groups of fixing rings 5, and a fixing groove 26 is provided in the mounting ring 24. A filter screen 15 is provided in the fixing groove 26. A mounting port 25 is also provided on the mounting ring 24, and a second drum cross bar 14 is provided on the mounting ring 24. The second drum cross bar 14 is detachably installed between the two groups of fixing rings 5.

[0031] The filter screen 15 is in sheet shape. One end of the filter screen 15 is inserted into the fixing groove 26 in the two sets of mounting rings 24 from the mounting hole 25, and the filter screen 15 is pushed to slide in the fixing groove 26. After the filter screen 15 slides one circle in the fixing groove 26, the filter screen 15 forms a cylindrical shape. Then the second drum cross bar 14 is installed between the two sets of fixing rings 5. The two sets of fixing rings 5, the first drum cross bar 12, the annular hoop 13 and the second drum cross bar 14 form a drum frame for fixing and supporting the filter screen 15, completing the installation or replacement of the filter screen 15, thereby realizing the selection of the filter screen 15 with the corresponding mesh size according to the size of the particles and suspended matter in the liquid to be filtered to improve the filtration efficiency, thereby improving the practicality of the device. At the same time, after long-term use, the filter screen 15 can be removed for cleaning or replacement to ensure the normal use of the filtering device.

[0032] It is further explained that the two sets of fixing rings 5 ​​are provided with mounting grooves 19 on opposite sides, a slider 21 is slidably installed in the mounting groove 19, a return spring 20 is provided inside the mounting groove 19, and the two ends of the return spring 20 are fixedly connected to the bottom of the mounting groove 19 and one side of the slider 21, respectively. The two ends of the second drum cross bar 14 are fixedly connected to the limit block 23, and the side of the limit block 23 close to the slider 21 is set with an inclined surface (as shown in the attached figure). Figure 4 shown).

[0033] The lower end of the second drum cross bar 14 is located in the installation opening 25 and squeezes the filter screen 15, thereby fixing the filter screen 15 in the fixing groove 26, and completing the installation of the filter screen 15.

[0034] It is further explained that the limiting columns 27 are fixedly installed on the bottom of the installation groove 19 and one side of the slider 21, and the return spring 20 is movably sleeved on the outside of the two groups of limiting columns 27.

[0035] The limiting post 27 guides and limits the return spring 20 , thereby preventing the return spring 20 from deflecting during compression or extension, and improving the stability of the return spring 20 during use.

[0036] It is further explained that a slide groove 28 is provided on the circumferential surface of the fixing ring 5 , the slide groove 28 is connected to the mounting groove 19 , a paddle 22 is slidably mounted in the slide groove 28 , and the bottom of the paddle 22 is fixedly connected to the upper surface of the slider 21 .

[0037] By pushing the paddle 22 to move in the slide groove 28, the slider 21 can be driven to move in the mounting groove 19. When the second drum cross bar 14 needs to be removed, the paddle 22 is pushed to move the slider 21 into the mounting groove 19. At this time, the slider 21 no longer restricts the limit block 23, and the limit block 23 can move upward, thereby removing the second drum cross bar 14 from between the two sets of fixing rings 5, and then pulling the filter 15 out of the fixing groove 26 for cleaning or replacement. The operation is simple and quick.

[0038] It is further explained that a feed pipe 3 is fixedly installed in the side wall of the filter box 1 , and one end of the feed pipe 3 passes through the rotating shaft 11 and is located in the filter screen 15 .

[0039] One end of the feed pipe 3 located outside the filter box 1 is connected to the external liquid to be filtered. The liquid to be filtered enters the cylindrical filter screen 15 through the feed pipe 3. The filter screen 15 filters the liquid so that the particles and suspended matter in the liquid remain in the filter screen 15, realizing solid-liquid separation to achieve the filtering effect.

[0040] It is further explained that a connecting block 6 is fixedly installed in the filter box 1, a discharge trough 7 is opened in the connecting block 6, a motor 8 is fixedly installed on the filter box 1, and transmission wheels 9 are fixedly installed on the driving shaft of the motor 8 and the outer circumference of the rotating shaft 11, and the outer sides of the two sets of transmission wheels 9 are provided with belts 10.

[0041] The motor 8 drives the transmission wheel 9 on its drive shaft to rotate, and then drives the transmission wheel 9 on the outer circumferential surface of the rotating shaft 11 to rotate through the belt 10. The transmission wheel 9 drives the filter screen 15 fixed between the two sets of fixed rings 5 ​​to rotate through the rotating shaft 11. The centrifugal force generated by the rotation of the filter screen 15 is used to improve the liquid filtering effect. The filtered liquid is discharged from the filter box 1 through the discharge trough 7.

[0042] It is further explained that a clean water pipe 16 is fixedly installed in the filter box 1, and a nozzle 17 is fixedly connected to the clean water pipe 16. The nozzle 17 is arranged above the filter screen 15. A sewage pipe 4 is passed through the side wall of the filter box 1 away from the feed pipe 3, and one end of the sewage pipe 4 is fixedly connected to a sewage trough 18. The sewage trough 18 is connected to the sewage pipe 4, and the sewage trough 18 is arranged in the filter screen 15.

[0043] The input end of the clean water pipe 16 is connected to the external clean water pipe. The clean water in the clean water pipe 16 is sprayed out from the nozzle 17 to backflush the filter 15, flushing out the particles and suspended matter in the mesh of the filter 15, ensuring the filtering effect of the filter 15. The clean water carries the particles and suspended matter into the sewage trough 18 and is then discharged from the filter box 1 through the sewage pipe 4.

[0044] Specific reference is made to the following operation: the liquid to be filtered enters the cylindrical filter screen 15 through the feed pipe 3, the motor 8 drives the transmission wheel 9 on its drive shaft to rotate, and then drives the transmission wheel 9 on the outer circumferential surface of the rotating shaft 11 to rotate through the belt 10, and the transmission wheel 9 drives the filter screen 15 fixed between the two sets of fixed rings 5 ​​to rotate through the rotating shaft 11, and the filter screen 15 filters the liquid, so that the particles and suspended matter in the liquid remain in the filter screen 15, and the filtered liquid is discharged from the filter box 1 through the discharge trough 7, and the clean water in the clean water pipe 16 is sprayed from the nozzle 17 to backflush the filter screen 15, flushing out the particles and suspended matter in the mesh of the filter screen 15, and the clean water carries the particles and suspended matter into the sewage trough 18, and then is discharged from the filter box 1 through the sewage pipe 4;

[0045] When the filter 15 needs to be replaced, push the paddle 22 to move the slider 21 into the mounting groove 19. At this time, the slider 21 no longer restricts the limit block 23, and the limit block 23 can move upward, thereby removing the second drum cross bar 14 from between the two sets of fixing rings 5, and then pulling the filter 15 out of the fixing groove 26, and then inserting one end of the new filter 15 from the mounting port 25 into the fixing groove 26 in the two sets of mounting rings 24, and pushing the filter 15 to make it slide in the fixing groove 26. After the filter 15 slides one circle in the fixing groove 26, the filter 15 forms a cylindrical shape, and then the second drum cross bar 14 is installed between the two sets of fixing rings 5 ​​to complete the replacement of the filter 15.

[0046] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0047] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Rotary drum screen filter device, characterized in that: The invention comprises a filter box (1), wherein a box door (2) is rotatably mounted on one side of the filter box (1), a rotating shaft (11) is rotatably mounted on two inner walls of the filter box (1), a fixing ring (5) is fixedly connected to one side of the rotating shaft (11), a first rotary drum cross bar (12) is fixedly connected between two groups of the fixing rings (5), an annular hoop (13) is fixedly mounted on the first rotary drum cross bar (12), a mounting ring (24) is fixedly mounted on one side of the two groups of the fixing rings (5), a fixing groove (26) is provided in the mounting ring (24), a filter screen (15) is provided in the fixing groove (26), a mounting opening (25) is further provided on the mounting ring (24), a second rotary drum cross bar (14) is provided on the mounting ring (24), and the second rotary drum cross bar (14) is detachably mounted between the two groups of the fixing rings (5).

2. The rotary drum screen filter device according to claim 1, characterized in that: The two sets of fixing rings (5) are provided with mounting grooves (19) on opposite sides. A slider (21) is slidably installed in the mounting groove (19). A return spring (20) is provided inside the mounting groove (19). The two ends of the return spring (20) are fixedly connected to the bottom of the mounting groove (19) and one side of the slider (21), respectively. The two ends of the second drum cross bar (14) are fixedly connected to a limiting block (23). The side of the limiting block (23) close to the slider (21) is provided with an inclined surface.

3. The rotary drum screen filter device according to claim 2, characterized in that: Limiting columns (27) are fixedly installed on the bottom of the installation groove (19) and one side of the slider (21), and the return spring (20) is movably sleeved on the outside of the two groups of limiting columns (27).

4. The rotary drum screen filter device according to claim 3, characterized in that: A sliding groove (28) is provided on the circumferential surface of the fixing ring (5), a paddle (22) is slidably installed in the sliding groove (28), and the bottom of the paddle (22) is fixedly connected to the upper surface of the slider (21).

5. The rotary drum screen filter device according to claim 4, characterized in that: A feed pipe (3) is fixedly installed in the side wall of the filter box (1), and one end of the feed pipe (3) passes through the rotating shaft (11) and is located in the filter screen (15).

6. The rotary drum screen filter device according to claim 5, characterized in that: A connecting block (6) is fixedly installed in the filter box (1), a discharge trough (7) is provided in the connecting block (6), a motor (8) is fixedly installed on the filter box (1), a transmission wheel (9) is fixedly installed on the driving shaft of the motor (8) and the outer circumference of the rotating shaft (11), and a belt (10) is provided on the outer surface of the two sets of transmission wheels (9).

7. The rotary drum screen filter device according to claim 6, characterized in that: A clean water pipe (16) is fixedly installed in the filter box (1), a nozzle (17) is fixedly connected to the clean water pipe (16), and the nozzle (17) is arranged above the filter screen (15). A sewage pipe (4) is passed through the side wall of the filter box (1) away from the feed pipe (3), and one end of the sewage pipe (4) is fixedly connected to a sewage trough (18), and the sewage trough (18) is connected to the sewage pipe (4). The sewage trough (18) is arranged in the filter screen (15).

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