Improved rotary drum filter

Abstract

The utility model relates to the technical field of rotary drum filtering, and particularly discloses an improved rotary drum filter which comprises a base frame used for bearing external objects, a plurality of filter screen sheets and a rotary drum framework, the end parts of the filter screen sheets are provided with bending parts which are bent outwards, the filter screen sheets are detachable, and the phenomenon that all filter screens are replaced due to partial damage is avoided. The collecting hopper can automatically collect stains generated in the filtering process, the stains are conveniently discharged through the hose, and the burden of manual cleaning is greatly relieved. Meanwhile, the openable and closable shell provides a convenient maintenance channel for a user, the downtime is reduced, the equipment utilization rate is improved, the lifting of the collecting hopper can be easily realized by adjusting the bolt connection of the strip-shaped body, and the flexibility and the safety of the equipment are further enhanced; therefore, the filtering effect, the operation convenience, the maintenance cost and the like are excellent, and excellent use experience is brought to users.

Description

Technical Field

[0001] The utility model relates to the technical field of drum filtration, and particularly discloses an improved drum filter. Background Art

[0002] For a drum filter, since the rotation of the drum can generate a strong centrifugal force and can automatically turn the material continuously during the rotation process, it is commonly used for solid-liquid separation and can also be used for the filtration of solid particles. In a traditional drum filter, the aperture size of the filter mesh is fixed. When the filter mesh is damaged, the entire filter mesh needs to be replaced, which makes the replacement time long and causes waste of the undamaged part, and is very time-consuming and laborious. Content of the Utility Model

[0003] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the utility model is to provide an improved drum filter.

[0004] To achieve the above purpose, an improved drum filter of the utility model includes a base frame, filter mesh sheets, a drum skeleton rotatably arranged on the base frame, and filter mesh sheets detachably connected to the drum skeleton. There are multiple filter mesh sheets, and the multiple filter mesh sheets are arranged around the rotation axis of the drum skeleton, which not only increases the filtration area but also enables the filtered substances to be more evenly distributed on the filter mesh sheets, thereby improving the overall filtration efficiency. The end part of the filter mesh sheet is provided with a bent part, and two adjacent filter mesh sheets are limited and fixed via the bent part, which not only enhances the structural strength of the filter mesh sheets but also ensures the stability and consistency of the filter mesh sheets during rotation through the mutual limitation and fixation of the bent parts of adjacent filter mesh sheets, further improving the filtration effect. The multiple filter mesh sheets around the rotation axis of the drum skeleton can ensure the uniform transmission of force in the structure, reduce stress concentration, and thus avoid damage to the structure due to uneven force.

[0005] Further, the drum skeleton includes reinforcing ribs and ring sheets arranged on the reinforcing ribs. The reinforcing ribs are perpendicular to the ring sheets. There are multiple reinforcing ribs, and the multiple reinforcing ribs are arranged in an annular array around the ring sheets. The reinforcing ribs serve as the support structure of the drum skeleton, and their annular array arrangement can significantly improve the strength and stiffness of the entire drum skeleton. This design enables the drum skeleton to maintain a stable shape, reduce deformation and vibration when rotating at high speed or under a large load.

[0006] Further, a collecting hopper for collecting sewage is arranged on the base frame, and the collecting hopper is located at the upper inner side of the drum skeleton. When sewage or the substance to be filtered passes through the filter mesh sheets for filtration, impurities and particulate matters are cleaned into the collecting hopper located at the upper inner side of the drum skeleton through a sewage cleaning component. This design ensures that the filtered substances can be collected quickly and effectively, avoids the accumulation of impurities on the filter mesh sheets, and thus improves the filtration efficiency and effect.

[0007] Furthermore, a shell for covering the drum frame and the filter sheet is rotatably arranged on the base frame, and the shell is used to prevent the filtered water from splashing. During the operation of the filter, the filtered water may splash due to high-speed rotation or pressure changes. The setting of the shell can effectively block the splashing water and prevent it from splashing onto the operator or other equipment, thereby ensuring the safety of the working environment. The design of the shell usually takes into account the convenience of cleaning, and the shell is designed to be an openable structure so that the impurities and dirt accumulated inside can be quickly cleaned when necessary.

[0008] Furthermore, the drum skeleton also includes a ring body, which is arranged at one end of the reinforcement rib to enhance the stability of the reinforcement rib. The ring body serves as a connection point of the reinforcement rib. Its existence significantly enhances the connection strength of the reinforcement rib, helps prevent the reinforcement rib from loosening or breaking when rotating at high speed or bearing load, and ensures the overall stability of the drum skeleton.

[0009] Furthermore, a driving member for driving the rotating drum skeleton to rotate is provided on the base frame, an annular rack is provided on the ring body, and a gear for matching the annular rack is provided at the output end of the driving member. Through the meshing transmission of the gear and the annular rack, the driving member can efficiently transmit power to the rotating drum skeleton, which can ensure that the rotating drum skeleton obtains continuous and stable power during the rotation process. The transmission ratio of the gear transmission is stable and is not affected by the changes in input and output speeds and torque, which can ensure the stability of the output speed and torque. This stability helps to reduce fluctuations and errors in the transmission process and improve the overall performance of the equipment.

[0010] Furthermore, the drum skeleton also includes a baffle, which is located at the end of the reinforcing rib away from the ring body. The baffle and the reinforcing rib on the annular cylinder are fixed by bolts. The arrangement of the baffle can effectively prevent the material in the annular cylinder from overflowing due to vibration, impact and the like during processing or transportation. The bolt connection design of the baffle and the reinforcing rib makes the installation and disassembly process simpler and faster. The modular design facilitates quick operation when the equipment needs maintenance or replacement of parts, thereby reducing maintenance costs and time.

[0011] Furthermore, a strip-shaped body is provided on the base frame, and the free end of the strip-shaped body is used to support the end of the collecting bucket away from the base frame. The strip-shaped body serves as a supporting structure, and its free end directly supports the end of the collecting bucket away from the base frame, which can effectively reduce the vibration and shaking of the collecting bucket when collecting materials or being acted upon by external forces, which is crucial to ensuring the normal operation of the collecting bucket and extending its service life. Through the support of the strip-shaped body, the rigidity of the entire collecting system is improved, and the enhanced rigidity helps to reduce failures caused by deformation or twisting, and improve overall reliability and durability.

[0012] Further, a dirt cleaning assembly is also provided on the base frame for cooperating with the collection hopper and located outside the filter screen of the drum skeleton. The dirt cleaning assembly includes a spray nozzle for jetting air / water and a fluid supply unit. The spray nozzle can jet high-pressure gas or water onto the filter screen to form a strong impact force, quickly removing the dirt attached to the filter screen so that the dirt can effectively enter the collection hopper. This physical cleaning method is more efficient than traditional manual cleaning and can significantly shorten the cleaning time.

[0013] Further, the improved drum filter further includes a soft pad. The filter screen includes an arc plate main body. Each filter screen is provided with two bending parts, which are respectively bent from the two ends of the arc plate main body away from each other. The soft pad is located between the bending parts of adjacent filter screens to seal the gap between the bending parts of the two filter screens. Through the sealing effect of the soft pad, the possibility of particulate matter accumulating in the filter screen gap is reduced, and the filtration efficiency is improved. The soft pad also plays a buffering role, which can reduce the direct contact and friction between the filter screens, reduce the wear degree, and thus extend the service life of the filter screens.

[0014] Further, the collection hopper is inclined relative to the base frame. A sewage discharge port for discharging sewage is provided at one end of the collection hopper. The sewage discharge port cooperates with a hose to discharge the dirt in the collection hopper. Since the collection hopper is inclined, the dirt will naturally flow towards the sewage discharge port under the action of gravity. The use of a hose can automatically discharge the dirt, reducing the need for manual intervention. Timely sewage discharge helps to keep the collection hopper clean, reduces the problems of odor and bacteria breeding caused by dirt accumulation, and at the same time avoids the blockage problem caused by long-term accumulation of dirt in the collection hopper, reducing the equipment failure and maintenance costs caused by blockage.

[0015] Advantages of the present utility model: Multiple filter screens can ensure the uniform transfer of force in the structure around the rotation axis of the drum skeleton, and also ensure the uniform distribution of the filtered substances, improving the filtration efficiency. Through the mutual limiting and fixing of adjacent filter screens, the stability and consistency during the rotation process are ensured. The reinforcing ribs of the drum skeleton are arranged in an annular array, enhancing the overall strength and stiffness, and ensuring the stability under high-speed rotation or load. The inclined setting of the collection hopper and the design of the sewage discharge port cooperating with the hose achieve the automatic discharge of dirt, reducing the cleaning workload and the risk of blockage. The setting of the housing prevents the splashing of the filtered water flow and ensures the safety of the working environment. In addition, the driving member provides stable and continuous power for the drum skeleton through the meshing transmission of the gear and the annular rack. The setting of the baffle and the modular design facilitate maintenance, improving the reliability and durability of the equipment. The spray pipe of the dirt cleaning assembly can efficiently remove the dirt on the filter screen, further improving the cleaning efficiency and effect. These designs together improve the overall performance of the filter, reduce the maintenance cost, extend the service life of the equipment, and optimize the working environment. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the main structure of the present utility model;

[0017] Figure 2 It is one of the schematic diagrams of the drum skeleton of the present utility model;

[0018] Figure 3 It is a schematic diagram of the strip-shaped body of the present utility model;

[0019] Figure 4 It is a schematic diagram of the filter screen structure of the present utility model;

[0020] Figure 5 It is the second schematic diagram of the drum skeleton of the present utility model.

[0021] The reference numerals include:

[0022] 1, base frame; 2, drum skeleton; 3, filter screen; 5, reinforcing rib; 6, ring piece; 7, bending part; 8, collecting hopper; 9, housing; 10, strip-shaped body; 11, ring body; 13, baffle. Specific embodiments

[0023] For the convenience of understanding by those skilled in the art, the present utility model will be further described below in conjunction with the embodiments and the drawings. The content mentioned in the embodiments does not limit the present utility model.

[0024] Please refer to Figures 1 to 5 As shown, an improved drum filter of the present utility model includes a base frame 1, a filter screen 3, a drum skeleton 2 rotatably arranged on the base frame 1, and a filter screen 3 detachably connected to the drum skeleton 2. There are multiple filter screens 3, and the multiple filter screens 3 are arranged around the rotation axis of the drum skeleton 2, which not only increases the filtration area but also enables the filtered substances to be more evenly distributed on the filter screen 3, thereby improving the overall filtration efficiency. A bending part 7 is provided at the end of the filter screen 3, and two adjacent filter screens 3 are limited and fixed via the bending part 7, which not only enhances the structural strength of the filter screen 3 but also ensures the stability and consistency of the filter screen 3 during rotation through the mutual limitation and fixation of the bending parts of adjacent filter screens 3, further improving the filtration effect. The arrangement of multiple filter screens 3 around the rotation axis of the drum skeleton 2 can ensure the uniform transmission of force in the structure, reduce stress concentration, and thus avoid damage to the structure due to uneven force.

[0025] Specifically, the drum skeleton 2 includes reinforcing ribs 5 and ring plates 6 disposed on the reinforcing ribs 5. The reinforcing ribs 5 are perpendicular to the ring plates 6. There are multiple reinforcing ribs 5, and the multiple reinforcing ribs 5 are arranged in an annular array around the ring plate 6. The reinforcing ribs 5 serve as the support structure of the drum skeleton 2, and their annular array arrangement can significantly improve the strength and stiffness of the entire drum skeleton 2, enabling the drum skeleton 2 to maintain a stable form when rotating at high speed or under a large load, reducing deformation and vibration.

[0026] Specifically, a collecting hopper 8 for collecting waste materials is provided on the base frame 1. The collecting hopper 8 is located at the upper inner side of the drum skeleton 2. When sewage or substances to be filtered pass through the filter mesh sheet 3 for filtration, impurities and particulate matters are cleaned by the cleaning component and fall into the collecting hopper 8 located at the upper inner side of the drum skeleton 2. This design ensures that the filtered substances can be collected quickly and effectively, avoiding the accumulation of impurities on the filter mesh sheet 3, thereby improving the filtration efficiency and effect.

[0027] Specifically, a housing 9 for covering the drum skeleton 2 and the filter mesh sheet 3 is rotatably provided on the base frame 1. The housing 9 is used to prevent the filtered water flow from splashing. During the operation of the filter, the filtered water flow may splash due to high-speed rotation or pressure changes. The provision of the housing 9 can effectively block these splashing water flows and prevent them from splashing onto the operator or other equipment, thus ensuring the safety of the working environment. The design of the housing 9 usually takes into account the convenience of cleaning. The housing 9 is designed as an openable structure to facilitate the quick cleaning of the accumulated impurities and dirt inside when needed.

[0028] Specifically, there are two housings 9, and the two housings 9 are relatively rotatably arranged for opening and closing to facilitate the maintenance of the internal structure of the filter. The shape of the housing 9 is L-shaped, and the two housings 9 form a semi-wrap around the filter.

[0029] Specifically, the drum skeleton 2 further includes a ring body 11, and the ring body 11 is disposed at one end of the reinforcing rib 5 to enhance the stability of the reinforcing rib 5. The ring body 11 serves as the connection point of the reinforcing rib 5, and its presence significantly enhances the connection strength of the reinforcing rib 5, helping to prevent the reinforcing rib 5 from loosening or breaking when rotating at high speed or under a load, ensuring the overall stability of the drum skeleton 2.

[0030] Specifically, a driving member for driving the drum skeleton 2 to rotate is provided on the base frame 1. An annular rack is provided on the ring body 11, and a gear for cooperating with the annular rack is provided at the output end of the driving member. Through the meshing transmission of the gear and the annular rack, the driving member can efficiently transmit power to the drum skeleton 2, ensuring that the drum skeleton 2 can obtain continuous and stable power during rotation. The transmission ratio of the gear transmission is stable and is not affected by changes in the input and output speeds and torques, ensuring the stability of the output speed and torque. This stability helps to reduce fluctuations and errors during the transmission process and improve the overall performance of the equipment.

[0031] Specifically, the annular rack is arranged on the outside of the ring body 11 to facilitate user maintenance.

[0032] Specifically, the drum skeleton 2 also includes a baffle 13, which is located at the end of the reinforcing rib 5 away from the ring body 11. The baffle 13 is fixed to the reinforcing rib 5 on the annular cylinder by bolts. The setting of the baffle 13 can effectively prevent the material in the drum skeleton 2 from overflowing due to vibration, impact, etc. during processing or transportation. The bolt connection design of the baffle 13 and the reinforcing rib 5 makes the installation and disassembly process simpler and faster, and the modular design facilitates quick operation when the equipment needs maintenance or replacement of parts, thereby reducing maintenance costs and time.

[0033] Specifically, a strip body 10 is provided on the base frame 1, and the free end of the strip body 10 is used to support the end of the collecting bucket 8 away from the base frame 1. The strip body 10 serves as a supporting structure, and its free end directly supports the end of the collecting bucket 8 away from the base frame, which can effectively reduce the vibration and shaking of the collecting bucket 8 when collecting materials or being acted upon by external forces, which is crucial to ensuring the normal operation of the collecting bucket 8 and extending its service life. Through the support of the strip body 10, the rigidity of the entire collecting system is improved, and the enhanced rigidity helps to reduce failures caused by deformation or twisting, and improve the overall reliability and durability.

[0034] Specifically, the strip body 10 is composed of two parts, namely a first rod body arranged on the base frame 1 and a second rod body arranged on the first rod body. The first rod body is rotatably arranged relative to the second rod body, and the first rod body and the second rod body are limited by external bolts. By adjusting the second rod body, the inclination angle of the collecting bucket 8 can be adjusted to a certain extent.

[0035] Specifically, the base frame 1 is also provided with a cleaning component for use with the collecting bucket 8 and located outside the filter mesh 3 of the drum frame 2. The cleaning component includes a jet nozzle for jetting air / water and a fluid supply unit. The jet nozzle can spray high-pressure gas or water to the filter mesh 3 to form a strong impact force, quickly remove the dirt attached to the filter mesh 3 so that the dirt can effectively enter the collecting bucket 8. This physical cleaning method is more efficient than traditional manual cleaning and can significantly shorten the cleaning time.

[0036] Specifically, the improved drum filter further includes a soft pad. The filter screen 3 includes an arc-shaped plate body. Each filter screen 3 is provided with two bending parts 7, and the two bending parts 7 are respectively bent from the two ends of the arc-shaped plate body away from each other. The soft pad is located between the bending parts 7 of two adjacent filter screens 3 to seal the gap between the bending parts 7 of the two filter screens 3. Through the sealing effect of the soft pad, the possibility of particulate matter accumulating in the filter screen gap is reduced, and the filtration efficiency is improved. The soft pad also plays a buffering role, which can reduce the direct contact and friction between the filter screens, reduce the degree of wear, and thus extend the service life of the filter screens.

[0037] Specifically, the collection hopper 8 is inclined relative to the base frame 1. One end of the collection hopper 8 is provided with a sewage discharge port for discharging sewage. The sewage discharge port cooperates with a hose to discharge the dirt in the collection hopper 8. Since the collection hopper 8 is inclined, the dirt will naturally flow towards the sewage discharge port under the action of gravity. The use of a hose can automatically discharge the dirt, reducing the need for manual intervention. Timely sewage discharge helps to keep the collection hopper 8 clean, reduces the problems of odor and bacterial growth caused by dirt accumulation, and at the same time avoids the blockage problem caused by long-term accumulation of dirt in the collection hopper 8, reducing the equipment failures and maintenance costs caused by blockage.

[0038] The above content is only the preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. The content of this specification should not be construed as a limitation to the present invention.

Claims

1. An improved drum filter, comprising a base frame (1), a drum frame (2) rotatably arranged on the base frame (1), and a filter screen (3) detachably connected to the drum frame (2); characterized in that: A plurality of filter mesh sheets (3) are provided, and the plurality of filter mesh sheets (3) are arranged around the rotation axis of the drum frame (2). A bending portion (7) is provided at the end of the filter mesh sheet (3), and two adjacent filter mesh sheets (3) are fixed in position via the bending portion (7).

2. An improved rotary drum filter according to claim 1, characterized in that: The rotating drum skeleton (2) comprises a reinforcing rib (5) and a ring piece (6) arranged on the reinforcing rib (5), wherein the reinforcing rib (5) and the ring piece (6) are arranged perpendicularly, and a plurality of reinforcing ribs (5) are arranged around the ring piece (6) in a ring array.

3. An improved rotary drum filter according to claim 1, characterized in that: A collecting bucket (8) for collecting waste is arranged on the base frame (1), and the collecting bucket (8) is located at the upper inner side of the rotating drum frame (2).

4. The improved rotary drum filter according to claim 1, characterized in that: A shell (9) for covering the drum frame (2) and the filter screen (3) is also rotatably arranged on the base frame (1), and the shell (9) is used to prevent the filtered water flow from splashing.

5. The improved rotary drum filter according to claim 2, characterized in that: The rotating drum skeleton (2) also includes a ring body (11), which is arranged at one end of the reinforcing rib (5) to enhance the stability of the reinforcing rib (5).

6. An improved rotary drum filter according to claim 5, characterized in that: A driving member for driving the rotating drum frame (2) to rotate is arranged on the base frame (1), an annular rack is arranged on the ring body (11), and a gear for matching the annular rack is arranged at the output end of the driving member.

7. An improved rotary drum filter according to claim 5, characterized in that: The drum skeleton (2) further comprises a baffle (13), wherein the baffle (13) is located at an end of the reinforcing rib (5) away from the ring body (11).

8. An improved rotary drum filter according to claim 3, characterized in that: A strip-shaped body (10) is arranged on the base frame (1), and a free end of the strip-shaped body (10) is used to support an end of the collecting bucket (8) away from the base frame (1).

9. An improved rotary drum filter according to claim 3, characterized in that: The base frame (1) is also provided with a cleaning component for use with the collecting bucket (8) and located outside the filter sheet (3) of the drum frame (2). The cleaning component includes a spray nozzle for spraying air / water and a fluid supply unit.

10. The improved rotary drum filter according to claim 1, characterized in that: The improved rotary drum filter also includes a soft pad. The filter mesh (3) includes an arc-shaped plate body. Each filter mesh (3) is provided with two bent portions (7). The two bent portions (7) are respectively bent from two ends of the arc-shaped plate body that are away from each other. The soft pad is located between the bent portions (7) of two adjacent filter mesh sheets (3) to seal the gap between the bent portions (7) of the two filter mesh sheets (3).

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