Rotary drum type microfiltration equipment for sewage pretreatment

Abstract

The utility model belongs to the technical field of sewage treatment equipment, particularly relates to drum type microfiltration equipment for sewage pretreatment, and aims to solve the problem that the filtering effect is affected due to the fact that meshes of a filter screen are easily blocked by impurities caused by the fact that the impurities on the inner wall of the filter screen are inconvenient to clean and discharge, the drum type microfiltration equipment comprises a hollow drum framework, a plurality of filter screens are mounted on the surface of the hollow roller framework in an embedded manner, spiral sewage discharging blades for guiding dirt to be discharged are fixedly arranged on the inner wall of the hollow roller framework, a water receiving seat is arranged below the hollow roller framework, and rolling wheels are fixedly arranged at the four corners of the top of the water receiving seat; the hollow roller framework is installed on the four rolling wheels in a rolling mode through annular sliding grooves in the outer wall. Through the unique structural design, the functions of efficient filtration, automatic flushing, spiral pollution discharge and the like are realized, the sewage pretreatment efficiency and effect are improved, and an efficient and convenient solution is provided for sewage treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to a rotary drum type microfiltration equipment for sewage pretreatment. Background Art

[0002] The drum microfiltration equipment is a kind of equipment used for solid-liquid separation, which is suitable for the separation and filtration of fine particle materials. It is usually composed of filter material container, drum filter medium, transmission device and other components. When working, the liquid to be treated passes through the filter material container and the drum filter medium, the solid particles are filtered out on the filter material, and the liquid flows out of the equipment, achieving the purpose of solid-liquid separation. In sewage treatment, the drum microfiltration equipment is often used as part of sewage pretreatment to remove larger particulate matter in sewage, such as suspended solids, sediments, etc.

[0003] After searching, the patent with announcement number CN214019566U discloses a rotary drum impurity filtering equipment, which includes a support, a filter screen, a drum rack, a fixed shaft, a base, a fixed frame, a first guide rail, an upper sealing plate, a fixed seat, a second guide rail, a connecting frame, a lower sealing plate, a support block and a groove. The left side of the support is movably connected to the drum rack, the inner side of the drum rack is fixedly connected to the filter screen, the left side of the drum rack is fixedly connected to the fixed shaft, and a groove is provided on the top of the base.

[0004] Although the above-mentioned rotary drum impurity filtering device achieves the purpose of convenient automatic opening and closing, the impurities on the inner wall of the filter are not convenient to clean and discharge, resulting in the filter mesh being easily clogged by impurities, thereby affecting the filtering effect.

[0005] In view of the above problems, the utility model document proposes a rotary drum microfiltration equipment for sewage pretreatment. Utility Model Content

[0006] The utility model provides a rotary drum type microfiltration device for sewage pretreatment, which solves the shortcomings of the prior art that impurities on the inner wall of the filter are inconvenient to clean and discharge, resulting in the filter mesh being easily clogged by impurities, thereby affecting the filtering effect.

[0007] The utility model provides the following technical solutions:

[0008] A rotary drum microfiltration device for sewage pretreatment, comprising:

[0009] A hollow drum frame, wherein a plurality of filter screens are embedded and installed on the surface of the hollow drum frame, a spiral drainage blade for guiding the discharge of dirt is fixedly arranged on the inner wall of the hollow drum frame, a water receiving seat is arranged below the hollow drum frame, rollers are fixedly arranged at the four corners of the top of the water receiving seat, the hollow drum frame is rollingly installed on the four rollers through the annular slide groove on the outer wall, and one side of the water receiving seat is connected to a drainage pipe connected to the input end of other equipment;

[0010] An annular sealing plate is fixedly provided at one end of the hollow drum frame, a mounting frame is fixedly provided at one side of the outer wall of the water receiving seat, a water inlet pipe for receiving sewage is fixedly provided at the top of the mounting frame, and the water inlet pipe passes through the hollow area of ​​the annular sealing plate and extends into the hollow drum frame;

[0011] A driving assembly is arranged on the mounting frame and is used to drive the hollow drum frame to rotate;

[0012] The flushing component is arranged on the water receiving seat and is used for flushing the impurities blocking the filter from the outside to the inside so that the impurities can be discharged out of the hollow drum frame as the spiral sewage discharge blades rotate, thereby ensuring the filtering effect of the filter.

[0013] In a possible design, the driving assembly includes a driving motor fixedly mounted on the top of the mounting frame, the output shaft of the driving motor is fixedly connected to a driving gear, the other end of the annular sealing plate is fixedly provided with a hollow gear, the water inlet pipe passes through the hollow gear, and the driving gear is meshed with the hollow gear.

[0014] In a possible design, the flushing assembly includes a mounting pipe fixedly disposed on the top of the water receiving seat, and a plurality of flushing nozzles are equidistantly connected to the mounting pipe, and the flushing nozzles are arranged to be inclined upward.

[0015] In a possible design, a booster water pump is arranged outside the water receiving seat, the input end of the booster water pump is connected to the inner wall of the water receiving seat through a pumping pipe, and the output end of the booster water pump is connected to the inner wall of the installation pipe through a water supply pipe.

[0016] In a possible design, a dirt receiving platform is provided on one side of the outer wall of the water receiving seat, and the dirt receiving platform is located on the same side as the unclosed end of the hollow drum frame.

[0017] In a possible design, a baffle for guiding dirt collection is fixedly provided on the top of the dirt receiving platform.

[0018] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0019] In this application, the specific workflow is as follows:

[0020] Start the driving motor, which drives the hollow drum frame to start rotating through the meshing of the driving gear and the hollow gear. At the same time, open the water inlet pipe to introduce the sewage to be treated into the hollow drum frame. The sewage is filtered through the filter screen in the hollow drum frame, and large particles of impurities are intercepted by the filter screen. Clean water flows into the water receiving seat through the filter screen. As the drum rotates, the spiral sewage discharge blade gradually guides the dirt trapped on the filter screen to the unsealed end of the drum for discharge. The clean water filtered by the filter screen accumulates in the water receiving seat and is discharged through the drain pipe to be used by subsequent treatment equipment;

[0021] When it is necessary to flush the filter, start the booster water pump, suck the clean water in the water receiving seat into the booster water pump through the suction pipe, and after pressurization, send it to the installation pipe through the water pipe. The flushing nozzle sprays high-pressure water to flush the filter from the outside to the inside, and the impurities attached to the filter are washed off. The washed impurities are discharged from the unsealed end of the drum as the spiral sewage discharge blades rotate and fall into the sewage receiving table.

[0022] The utility model has the following beneficial effects:

[0023] Automatic flushing: The equipment is equipped with a flushing component, which can automatically flush the filter screen regularly to avoid filter blockage and ensure continuous and stable filtering effect;

[0024] Spiral sewage discharge: The design of spiral sewage discharge blades can smoothly discharge the dirt trapped on the filter, reducing the workload of manual cleaning;

[0025] Easy to operate: The equipment is easy to operate. You only need to control the operation of the motor and the booster pump to complete the entire treatment process without complicated manual operation.

[0026] In summary, the utility model realizes functions such as high-efficiency filtration, automatic flushing, and spiral sewage discharge through its unique structural design, improves the efficiency and effect of sewage pretreatment, and provides an efficient and convenient solution for sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the three-dimensional structure of a rotary drum type microfiltration device for sewage pretreatment provided by an embodiment of the utility model;

[0028] Figure 2 A schematic structural diagram of a rotary drum type microfiltration device for sewage pretreatment provided by an embodiment of the utility model from another perspective;

[0029] Figure 3 A schematic diagram of the hollow drum skeleton structure of a rotary drum microfiltration device for sewage pretreatment provided by an embodiment of the utility model;

[0030] Figure 4A schematic diagram of the internal structure of a hollow drum skeleton of a rotary drum microfiltration device for sewage pretreatment provided in an embodiment of the utility model.

[0031] Figure numerals: 1. hollow drum frame; 2. filter screen; 3. water receiving seat; 4. roller; 5. annular slide; 6. annular sealing plate; 7. hollow gear; 8. mounting frame; 9. driving motor; 10. driving gear; 11. water inlet pipe; 12. drain pipe; 13. spiral sewage discharge blade; 14. sewage receiving platform; 15. baffle; 16. booster pump; 17. mounting pipe; 18. flushing nozzle; 19. water supply pipe; 20. suction pipe. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components. Example

[0035] Please refer to Figure 1-4 The present application relates to the technical field of sewage treatment equipment, specifically a rotary drum microfiltration equipment for sewage pretreatment, which can efficiently pretreat sewage, ensure that the subsequent treatment process is smoother, and improve the overall treatment efficiency, including:

[0036] The hollow drum skeleton 1 has a plurality of filter screens 2 embedded on its surface. These filter screens 2 are used to preliminarily filter the sewage and remove large particles of impurities therein. On the inner wall of the hollow drum skeleton 1, spiral sewage discharge blades 13 are fixedly arranged. These blades can guide the dirt to be discharged along the inner wall of the drum when the drum rotates;

[0037] A water receiving seat 3 is provided below the hollow drum frame 1 for collecting clean water filtered by the filter screen 2. Rollers 4 are fixedly provided at the four corners of the top of the water receiving seat 3. The hollow drum frame 1 is rollingly mounted on the four rollers 4 through the annular chute 5 on its outer wall to ensure that the hollow drum frame 1 can rotate smoothly. A drainage pipe 12 is also connected to one side of the water receiving seat 3 for draining the filtered clean water to other processing equipment.

[0038] In order to close one end of the hollow drum frame 1 and enable it to rotate, an annular sealing plate 6 is fixedly arranged at one end thereof. At the same time, a mounting frame 8 is fixedly arranged on one side of the outer wall of the water receiving seat 3, and a water inlet pipe 11 is fixedly arranged on the top of the mounting frame 8. The water inlet pipe 11 passes through the hollow area of ​​the annular sealing plate 6 and extends into the hollow drum frame 1, so as to introduce the sewage to be treated into the drum;

[0039] The drive assembly is provided to drive the rotation of the hollow drum skeleton 1. In this embodiment, a drive motor 9 fixedly mounted on the top of the mounting frame 8 is selected as the power source. The output shaft of the drive motor 9 is fixedly connected to the driving gear 10, and the other end of the annular blocking plate 6 is fixedly provided with a hollow gear 7. The water inlet pipe 11 passes through the hollow gear 7. The driving gear 10 meshes with the hollow gear 7. When the drive motor 9 is started, the hollow drum skeleton 1 is driven to rotate through the gear transmission.

[0040] In order to ensure the filtering effect of the filter 2, a flushing component is provided, which includes a mounting pipe 17 fixedly arranged on the top of the water receiving seat 3, and a plurality of flushing nozzles 18 are equidistantly connected to the mounting pipe 17. These nozzles are arranged to be inclined upward so that the surface of the filter 2 can be better flushed during flushing. In order to provide sufficient flushing pressure, a booster water pump 16 is provided outside the water receiving seat 3, and its input end is connected to the inner wall of the water receiving seat 3 through a pumping pipe 20, and its output end is connected to the inner wall of the mounting pipe 17 through a water supply pipe 19. When it is necessary to flush the filter 2, the booster water pump 16 is started, and the clean water in the water receiving seat 3 is pressurized and sprayed out through the flushing nozzle 18, thereby flushing away impurities blocking the filter holes on the filter 2, thereby ensuring the filtering effect of the filter 2. Example

[0041] Improvements based on Example 1:

[0042] Please refer to Figure 1-2 In order to conveniently collect the dirt discharged from the spiral sewage blades 13, a dirt receiving platform 14 is set on one side of the outer wall of the water receiving seat 3, and it is placed on the same side as the unclosed end of the hollow drum frame 1. In addition, a baffle 15 is fixedly set on the top of the dirt receiving platform 14 to guide the dirt to collect and facilitate subsequent cleaning work.

[0043] However, as is well known to those skilled in the art, the working principles and wiring methods of the drive motor 9 and the booster pump 16 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0044] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A rotary drum microfiltration device for sewage pretreatment, characterized in that: include: A hollow drum frame (1), wherein a plurality of filter screens (2) are embedded and installed on the surface of the hollow drum frame (1), a spiral drainage blade (13) for guiding the discharge of dirt is fixedly arranged on the inner wall of the hollow drum frame (1), a water receiving seat (3) is arranged below the hollow drum frame (1), rollers (4) are fixedly arranged at the four corners of the top of the water receiving seat (3), the hollow drum frame (1) is rollingly installed on the four rollers (4) through an annular slide groove (5) on the outer wall, and one side of the water receiving seat (3) is connected to a drainage pipe (12) connected to the input end of other equipment; An annular sealing plate (6) is fixedly provided at one end of the hollow drum frame (1), a mounting frame (8) is fixedly provided at one side of the outer wall of the water receiving seat (3), a water inlet pipe (11) for receiving sewage is fixedly provided at the top of the mounting frame (8), and the water inlet pipe (11) passes through the hollow area of ​​the annular sealing plate (6) and extends into the hollow drum frame (1); A driving assembly, disposed on the mounting frame (8), and used for driving the hollow drum frame (1) to rotate; The flushing assembly is arranged on the water receiving seat (3) and is used to flush impurities that clog the filter screen (2) from the outside to the inside so that the impurities are discharged from the hollow drum frame (1) as the spiral sewage discharge blades (13) rotate, thereby ensuring the filtering effect of the filter screen (2).

2. The rotary drum microfiltration equipment for sewage pretreatment according to claim 1, characterized in that: The drive assembly comprises a drive motor (9) fixedly mounted on the top of a mounting frame (8); an output shaft of the drive motor (9) is fixedly connected to a driving gear (10); a hollow gear (7) is fixedly provided at the other end of the annular blocking plate (6); the water inlet pipe (11) passes through the hollow gear (7); and the driving gear (10) meshes with the hollow gear (7).

3. The rotary drum microfiltration equipment for sewage pretreatment according to claim 1, characterized in that: The flushing assembly comprises a mounting pipe (17) fixedly arranged on the top of the water receiving seat (3), a plurality of flushing nozzles (18) being connected to the mounting pipe (17) at equal intervals, and the flushing nozzles (18) being arranged to be inclined upward.

4. The rotary drum microfiltration equipment for sewage pretreatment according to claim 3 is characterized in that: A booster water pump (16) is arranged outside the water receiving seat (3); an input end of the booster water pump (16) is connected to the inner wall of the water receiving seat (3) via a water pumping pipe (20); and an output end of the booster water pump (16) is connected to the inner wall of the installation pipe (17) via a water delivery pipe (19).

5. The rotary drum microfiltration equipment for sewage pretreatment according to claim 1, characterized in that: A dirt receiving platform (14) is provided on one side of the outer wall of the water receiving seat (3), and the dirt receiving platform (14) is located on the same side as the unsealed end of the hollow drum frame (1).

6. The rotary drum microfiltration equipment for sewage pretreatment according to claim 5, characterized in that: A baffle (15) for guiding dirt collection is fixedly provided on the top of the dirt receiving platform (14).

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