Drum-type liquid purifying and filtering equipment

Abstract

The utility model relates to the technical field of liquid purification treatment, and particularly discloses drum-type liquid purification and filtration equipment, which comprises a liquid containing box body unit, a water inlet pipe, a water outlet pipe, a backwashing assembly and a pollution discharge assembly, wherein the water inlet pipe, the water outlet pipe, the backwashing assembly and the pollution discharge assembly are arranged on the liquid containing box body unit; the filtering roller is rotationally arranged on the liquid containing box body unit, the driving assembly is used for driving the filtering roller to rotate, the backwashing assembly is arranged above the filtering roller and located outside the filtering roller, and the sewage discharging assembly is arranged in the filtering roller and located below the backwashing assembly; the driving assembly drives the filtering roller to rotate to filter sewage input by the water inlet pipe, the filtered water is discharged through the water outlet pipe outside the filtering roller, and the backwashing assembly is used for backwashing residual impurities filtered by the filtering roller. Impurities flushed by the back flushing assembly fall into the pollution discharge assembly under the action of gravity and flushing force and are discharged through the pollution discharge assembly. According to the equipment, blockage is prevented through dynamic rotary filtration, and the filter screen is transparent through backwashing.

Description

Technical Field

[0001] This utility model relates to the field of liquid purification and treatment technology, and in particular discloses a drum-type liquid purification and filtration device. Background Technology

[0002] Currently, in the field of liquid purification, traditional filtration equipment generally adopts an open structure at one end, which suffers from problems such as low filtration efficiency, incomplete impurity interception, and frequent cleaning and maintenance. The open design easily leads to water flow short-circuiting, failing to meet the demands of high-precision water purification, especially in scenarios with stringent requirements for water cleanliness, such as aquaculture and industrial wastewater treatment, where traditional equipment struggles to achieve continuous and stable operation. Furthermore, traditional filtration devices often rely on static filter screens, requiring regular manual disassembly and cleaning, increasing labor intensity and easily causing filter clogging due to delayed cleaning, thus affecting treatment effectiveness. In terms of energy consumption and maintenance, existing equipment often uses high-power motors, resulting in high energy consumption, and the filter components and transmission structure are often integrated, requiring complete replacement in case of failure, leading to high maintenance costs. Simultaneously, traditional equipment suffers from poor water distribution uniformity, easily causing uneven local pressure or water flow impact, affecting equipment stability, and lacks sufficient flexibility in parameter adjustment, making it difficult to adapt to complex water quality changes. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a drum-type liquid purification and filtration device.

[0004] To achieve the above objectives, this utility model provides a drum-type liquid purification and filtration device, comprising a liquid-containing tank unit, an inlet pipe, an outlet pipe, a backwashing component, and a sewage discharge component disposed on the liquid-containing tank unit, a filter drum rotatably disposed on the liquid-containing tank unit, and a drive component for driving the filter drum to rotate. The backwashing component is disposed above and outside the filter drum, and the sewage discharge component is disposed inside the filter drum and below the backwashing component. The drive component drives the filter drum to rotate to filter the sewage input through the inlet pipe. The filtered water is discharged through the outlet pipe outside the filter drum. The backwashing component is used to backwash the impurities remaining after filtration by the filter drum. The impurities washed off by the backwashing component fall into the sewage discharge component under the action of gravity and rinsing force and are discharged through the sewage discharge component.

[0005] Furthermore, the filter roller has a roller support rotatably mounted on the liquid tank unit, and an annular filter screen is provided on the roller support. The drive assembly drives the roller support to rotate, so that the annular filter screen forms a dynamic filtration surface in the sewage. The rotational movement of the annular filter screen, in conjunction with the backwashing assembly, realizes the dynamic removal of impurities on the surface of the annular filter screen, and at the same time, the effective filtration area is expanded through continuous rotation.

[0006] Furthermore, the drive assembly has a drive motor mounted on the liquid tank unit, a first gear on the output shaft of the drive motor, and a second gear rotatably mounted on the liquid tank unit. The second gear is connected to the filter drum, and the outer diameter of the first gear is smaller than the outer diameter of the second gear. The drive motor drives the first gear to transmit power to the second gear, causing the filter drum to rotate.

[0007] Furthermore, the backwashing assembly has a flushing pipe installed on the liquid tank unit, and the flushing pipe is equipped with flushing components. The flushing pipe is connected to the flushing components and an external water pump. The number of flushing components is set to multiple, and the multiple flushing components are arranged along the rotation axis of the filter drum so that the backwashing water can evenly cover the filter surface of the filter drum.

[0008] Furthermore, the sewage discharge assembly has a sewage discharge pipe installed on the liquid holding tank unit. One end of the sewage discharge pipe extends out of the liquid holding tank unit, and the other end is provided with a manifold plate for use with the backwash assembly. The manifold plate is funnel-shaped and connected to the sewage discharge pipe. Impurities flushed down by the backwash assembly fall into the manifold plate under the action of gravity and water flow. The funnel-shaped structure of the manifold plate can collect the impurities and guide them into the sewage discharge pipe for discharge.

[0009] Furthermore, a support bearing is provided between the filter roller and the liquid storage tank unit. The filter roller is rotatably mounted on the liquid storage tank unit via the support bearing. The outer ring of the support bearing is detachably connected to the filter roller, and the inner ring is detachably connected to the liquid storage tank unit and is assembled with the sewage discharge component.

[0010] Furthermore, the liquid-containing tank unit is equipped with a water inlet pipe. The two ends of the water inlet pipe, which are far apart from each other, are respectively set on the liquid-containing tank unit. One end of the water inlet pipe is a water inlet pipe, and the other end extends into the filter drum of the liquid-containing tank unit. The water inlet pipe is provided with a through hole for sewage to flow out. The number of through holes is set to multiple, and the multiple through holes are arranged along the length direction of the water inlet pipe and around the central axis of the water inlet pipe. Sewage is input from the water inlet pipe and is evenly transported into the filter drum for filtration through the multiple through holes.

[0011] Furthermore, the liquid tank unit is rotatably provided with multiple support rollers, which are located below the filter roller and abut against the roller support to assist in supporting the rotation of the roller support when it rotates.

[0012] Furthermore, the annular filter screen has filter discs that can be detachably mounted on the roller support. The filter discs are arc-shaped, and the number of filter discs is set to multiple. The multiple filter discs are arranged around the rotation axis of the roller support and along the length direction of the rotation axis of the roller support to form an annular filter screen.

[0013] Furthermore, the sewage discharge component is equipped with a sewage discharge pipe, which discharges the impurities blown off by the backwashing component through the end of the water inlet pipe away from the water inlet pipe, and the sewage discharge component is not connected to the water inlet pipe.

[0014] The beneficial effects of this utility model are:

[0015] (1) High-efficiency dynamic filtration and self-cleaning synergy: In terms of filtration and cleaning technology, the traditional one-end open filtration method is abandoned and a two-end closed design is adopted to achieve full blocking filtration, which meets the process requirements for high water quality purification. During operation, the filter drum rotates continuously to form a dynamic filtration surface, so that the sewage and the filter screen can fully contact each other and the impurities are intercepted more efficiently. The backwashing component works with the rotation of the filter screen to remove impurities without dead corners, ensuring that the filter screen always maintains a good permeability, reducing the frequency of manual cleaning and ensuring the cleanliness of the aquaculture water.

[0016] (2) Energy saving and low consumption: The gear reduction transmission technology is used to drive the drum with a low-power motor, which reduces energy consumption; the modular filter and support bearing design makes it easy to disassemble and maintain; in particular, the unique detachable connection design of the support bearing is different from the integrated structure on the market, making it easy to replace when damaged, which greatly reduces maintenance costs and difficulty.

[0017] (3) Stable operation and wide range of adaptability: The equipment uses multi-hole water distribution technology to make sewage evenly distributed. Combined with the combined support structure, it operates stably and reliably. It can also flexibly adjust relevant parameters to adapt to various complex water qualities in aquaculture water bodies and industrial production. It can play an excellent role in aquaculture, industrial liquid purification and treatment and other scenarios. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a drum-type liquid purification and filtration device according to the present invention;

[0019] Figure 2 This is a partial structural schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the filter roller of this utility model.

[0021] The reference numerals in the attached drawings include: 1. Liquid tank unit; 2. Filter drum; 21. Drum support; 22. Annular filter screen; 221. Filter disc; 3. Drive assembly; 31. Drive motor; 32. First gear; 33. Second gear; 34. Support wheel; 4. Backwash assembly; 41. Flushing pipe; 42. Flushing component; 5. Sewage discharge assembly; 51. Sewage discharge pipe; 52. Manifold; 6. Water outlet pipe; 7. Support bearing; 8. Water inlet pipe; 81. Water inlet pipe; 82. Through hole. Detailed Implementation

[0022] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0023] Please see Figures 1 to 3 As shown, this utility model discloses a drum-type liquid purification and filtration device, including a liquid tank unit 1, an inlet pipe 81, an outlet pipe 6, a backwashing component 4, and a sewage discharge component 5 disposed on the liquid tank unit 1, a filter drum 2 rotatably disposed on the liquid tank unit 1, and a drive component 3 for driving the filter drum 2 to rotate. The backwashing component 4 is disposed above and outside the filter drum 2, and the sewage discharge component 5 is disposed inside the filter drum 2 and below the backwashing component 4. The drive component 3 drives the filter drum 2 to rotate and filter the sewage input from the inlet pipe 81. The filtered water is discharged through the outlet pipe 6 outside the filter drum 2. The backwashing component 4 is used to backwash the impurities remaining after filtration by the filter drum 2. The impurities washed off by the backwashing component 4 fall into the sewage discharge component 5 under the action of gravity and rinsing force and are discharged through the sewage discharge component 5.

[0024] In actual use, the centrifugal force generated by dynamic rotation throws the liquid and impurities against the filter screen wall of the filter drum 2. The liquid passes through the filter screen and flows into the solution tank, while the impurities are intercepted on the filter screen. When the filter screen rotates past the backwashing component, the impurities attached to the filter screen are washed into the drain tank, preventing clogging and keeping the filter screen clear, thus completing the liquid purification. The drive component 3 drives the filter drum 2 to rotate continuously, realizing dynamic filtration of wastewater and avoiding the problem of reduced treatment efficiency caused by local clogging in traditional static filtration equipment, allowing for continuous and stable operation. The backwashing component 4 is located above the filter drum 2 and can periodically or in real-time backwash the impurities on the filter screen, ensuring that the filter screen pores are unobstructed, maintaining stable filtration accuracy and flow rate, and reducing the frequency of manual cleaning. The impurities generated by backwashing fall directly into the drain component 5 below under gravity and are discharged, preventing impurities from remaining in the equipment or flowing back, effectively preventing filter screen clogging and secondary pollution, and improving system reliability. By adjusting the rotation speed of the filter drum 2, the filter screen pore size, and the backwashing frequency, it can flexibly adapt to the treatment needs of different water qualities (such as those containing suspended solids, colloids, and oils), exhibiting strong versatility. Compared to traditional multi-stage filtration equipment, this design reduces energy consumption through mechanical rotation and gravity-fed wastewater discharge, while also reducing the use of chemical agents, aligning with green and environmentally friendly principles.

[0025] Specifically, the filter roller 2 has a roller support 21 rotatably mounted on the liquid tank unit 1, and an annular filter screen 22 is provided on the roller support 21. The drive assembly 3 drives the roller support 21 to rotate, so that the annular filter screen forms a dynamic filtration surface in the sewage. The rotational movement of the annular filter screen 22, in conjunction with the backwashing assembly 4, realizes the dynamic removal of impurities on the surface of the annular filter screen 22, and at the same time expands the effective filtration area through continuous rotation.

[0026] In actual use, the drive component 3 drives the roller support 21 to rotate, causing the annular filter screen 22 to form a dynamic filtration surface. Compared with static filtration, the wastewater has more sufficient contact with the annular filter screen 22, and impurities in the wastewater are more easily intercepted, thereby increasing the filtration volume per unit time, accelerating the filtration speed, and improving the overall filtration efficiency. The continuous rotation of the annular filter screen 22 expands the effective filtration area, increasing the contact area with wastewater without increasing the equipment's footprint, allowing more wastewater to be filtered simultaneously, further improving filtration efficiency.

[0027] The rotational movement of the annular filter screen 22, in conjunction with the backwashing assembly 4, ensures that the annular filter screen 22 rotates during backwashing. This allows the backwash water flow to more comprehensively cover the surface of the annular filter screen 22, effectively removing impurities attached to different locations. This avoids localized impurity residue, improves the backwashing effect, and guarantees the cleanliness and filtration performance of the annular filter screen 22. The dynamic backwashing process allows the backwash water flow to more thoroughly impact impurities, effectively removing even firmly attached impurities. This reduces filter screen clogging caused by impurity residue and extends the service life of the annular filter screen 22.

[0028] The annular filter screen 22 forms a dynamic filtration surface in the wastewater. During continuous rotation, even if some areas of the screen become clogged, other areas can continue to operate, ensuring the continuity and stability of the filtration process and preventing a significant decrease in the efficiency of the entire filtration system due to localized screen clogging. The synergistic effect of the rotational motion of the annular filter screen 22 and the backwashing component 4 effectively removes impurities and maintains the screen's permeability, enabling the filtration equipment to operate stably for extended periods and reducing the need for frequent downtime maintenance due to screen clogging or performance degradation.

[0029] Specifically, the drive assembly 3 has a drive motor 31 mounted on the liquid tank unit 1. A first gear 32 is mounted on the output shaft of the drive motor 31, and a second gear 33 is rotatably mounted on the liquid tank unit 1. The second gear 33 is connected to the filter drum 2. The outer diameter of the first gear 32 is smaller than the outer diameter of the second gear 33. The drive motor 31 drives the first gear 32 to transmit the second gear 33, causing the filter drum 2 to rotate.

[0030] In practical use, since the outer diameter of the first gear 32 is smaller than that of the second gear 33, this combination of large and small gears constitutes a reduction transmission mechanism. When the drive motor 31 drives the first gear 32 to rotate, and the gear meshing drives the second gear 33 to rotate, the rotational speed of the filter drum 2 is reduced, while the torque transmitted to the filter drum 2 is increased. The lower rotational speed helps the filter drum 2 to perform stable filtration operations, avoiding excessive disturbance to the wastewater during filtration due to excessive speed, which would affect the filtration effect. The increased torque ensures that the filter drum 2 can overcome the resistance of the wastewater and the adhesion resistance of impurities on the annular filter screen 22, rotating stably and continuously, ensuring the normal operation of the filtration process. This reduction transmission method allows for the selection of a relatively low-power, high-speed drive motor 31 to drive the filter drum 2. Compared to directly using a motor that provides high torque and low speed, a low-power, high-speed motor is cheaper, smaller in size, and easier to select and procure. Through the reduction and torque increase effect of gear transmission, a small-power motor can also meet the working requirements of the filter drum 2, reducing the overall cost of the equipment and the requirements for installation space, while also improving the adaptability of the motor and the versatility of the equipment.

[0031] Specifically, the backwashing assembly 4 has a flushing pipe 41 disposed on the liquid tank unit 1, and a flushing component 42 disposed on the flushing pipe 41. The flushing pipe 41 is connected to the flushing component 42 and an external water pump respectively. The number of flushing components 42 is set to multiple, and the multiple flushing components 42 are arranged along the rotation axis of the filter drum 2 so that the backwashing water can evenly cover the filter surface of the filter drum 2.

[0032] In actual use, multiple flushing elements 42 are arranged along the rotation axis of the filter drum 2, ensuring that the backwash water evenly covers the filter surface of the filter drum 2. This means that during backwashing, every part of the filter screen on the filter drum 2 can be thoroughly flushed, avoiding inadequate flushing in certain areas and resulting in impurity residue. Compared to a single flushing element 42, this multi-flushing element layout can more comprehensively and evenly remove impurities attached to the annular filter screen 22, effectively improving the backwashing effect and quality, and ensuring that the filter drum 2 always maintains good filtration performance. The flushing pipe 41 is connected to an external water pump, providing stable and sufficiently pressurized backwash water. Under sufficient water pressure, the multiple flushing elements 42 can flush the surface of the filter drum 2 with a greater impact force. Even some firmly attached impurities can be effectively washed off, ensuring the thoroughness of backwashing, reducing the possibility of impurities clogging the filter screen pores, extending the service life of the annular filter screen 22, and improving the operational stability of the equipment.

[0033] Uniform and effective backwashing can promptly remove impurities from the annular filter screen 22, maintaining its permeability and making the filtration process smoother. This helps maintain the processing capacity and filtration accuracy of the filtration equipment, ensuring stable water quality after treatment. Simultaneously, a good backwashing effect can reduce increased equipment operating resistance caused by impurity accumulation, lower energy consumption, and improve overall operating efficiency and economy. The structural design of this backwashing component 4 allows the equipment to adapt to different types and properties of wastewater. Whether the wastewater has a high impurity content or contains impurities of varying particle sizes, by reasonably adjusting the pump pressure and the parameters of the backwashing component 42 (such as spray angle and orifice diameter), a good backwashing effect can be achieved, ensuring the normal operation of the filter drum 2. Therefore, this improves the equipment's adaptability to different operating conditions and expands its application range.

[0034] Specifically, the sewage discharge assembly 5 has a sewage discharge pipe 51 installed on the liquid holding tank unit 1. One end of the sewage discharge pipe 51 extends out of the liquid holding tank unit 1, and the other end is provided with a manifold 52 for use with the backwash assembly 4. The manifold 52 is funnel-shaped and communicates with the sewage discharge pipe 51. Impurities flushed by the backwash assembly 4 fall into the manifold 52 under the action of gravity and water flow. The funnel-shaped structure of the manifold 52 can collect the impurities and guide them into the sewage discharge pipe 51 for discharge.

[0035] In actual use, the manifold 52 is funnel-shaped and connected to the drain pipe 51. This structure effectively collects impurities flushed down by the backwashing assembly 4. Under the influence of gravity and water flow, impurities naturally converge towards the center of the manifold 52. Due to its special funnel shape, impurities are less likely to accumulate or remain on the manifold 52 and can be quickly guided into the drain pipe 51, greatly improving the collection efficiency of impurities and preventing secondary pollution or blockage of other components inside the equipment. The funnel-shaped manifold 52 structure allows impurities to pass through the drain pipe 51 more smoothly, reducing the possibility of blockage caused by impurity accumulation. At the same time, this structure also helps to quickly separate sewage and impurities, allowing sewage to pass through the filter drum 2 more smoothly and discharge more smoothly, while impurities are effectively collected and discharged from the equipment, ensuring the normal operation of the sewage system and maintaining the overall stability and reliability of the equipment.

[0036] Specifically, a support bearing 7 is provided between the filter roller 2 and the liquid holding tank unit 1. The filter roller 2 is rotatably mounted on the liquid holding tank unit 1 via the support bearing 7. The outer ring of the support bearing 7 is detachably connected to the filter roller 2, and the inner ring is detachably connected to the liquid holding tank unit 1 and is assembled with the sewage discharge component 5.

[0037] In actual use, the support bearing 7 provides reliable support for the filter roller 2, enabling it to rotate stably on the liquid tank unit 1. Its outer ring is detachably connected to the filter roller 2, and its inner ring is detachably connected to the liquid tank unit 1. This connection method ensures that the filter roller 2 will not wobble or shift during rotation, guaranteeing the stability of the annular filter screen 22 during filtration and backwashing, thereby improving the consistency and reliability of the filtration effect. Stable rotation helps avoid problems such as impurities penetrating the filter screen or uneven backwashing caused by the instability of the filter roller 2. Since the outer ring of the support bearing 7 is detachably connected to the filter roller 2, and the inner ring is detachably connected to the liquid tank unit 1, it can be easily disassembled for replacement or repair when the support bearing 7 is worn, damaged, or requires maintenance. Similarly, when inspecting the filter roller 2 or the liquid tank unit 1, the support bearing 7 can be easily removed, facilitating the inspection and maintenance of the internal structure of the equipment. This detachable connection method reduces the difficulty and cost of equipment maintenance, reduces equipment downtime, and improves the maintainability and efficiency of the equipment.

[0038] Specifically, the liquid tank unit 1 is equipped with an inlet pipe 81 channel 8. The two ends of the inlet pipe 81 channel 8 that are far apart from each other are respectively set on the liquid tank unit 1. One end of the inlet pipe 81 channel 8 is an inlet pipe 81, and the other end extends into the filter roller 2 of the liquid tank unit 1. The inlet pipe 81 channel 8 is provided with a through hole 82 for sewage to flow out. The number of through holes 82 is set to be multiple. The multiple through holes 82 are arranged along the length direction of the inlet pipe 81 channel 8 and around the central axis of the inlet pipe 81 channel 8. Sewage is input from the inlet pipe 81 channel 8 and is evenly transported into the filter roller 2 for filtration through the multiple through holes 82.

[0039] In actual use, multiple through holes 82 are arranged along the length of the inlet pipe 81 and around its central axis, allowing wastewater to be evenly transported to the filter drum 2 after entering through the inlet pipe 81. This uniform water distribution ensures that all parts of the annular filter screen 22 of the filter drum 2 fully contact the wastewater, avoiding excessive or insufficient local water flow, improving the uniformity and effectiveness of filtration, and thus enhancing the overall filtration effect and making the filtered water quality more stable. The uniform wastewater distribution also allows for full utilization of the effective filtration area of ​​the annular filter screen 22, enabling more efficient interception of impurities in the wastewater. Compared to uneven water distribution, this design reduces the risk of filter screen clogging caused by concentrated local water flow, ensuring smooth filtration, increasing the filtration volume per unit time, and thus improving the equipment's filtration efficiency, allowing it to process more wastewater in the same amount of time.

[0040] Because wastewater can enter the filter drum 2 evenly, the impact force and torque imbalance caused by uneven water flow distribution are reduced. This helps maintain the rotational stability of the filter drum 2, reduces vibration and noise during equipment operation, extends the service life of various components, improves the overall operational stability and reliability of the equipment, and reduces failures and maintenance costs caused by unstable operation. This design of the 81 inlet pipes allows the equipment to adapt to wastewater with different flow rates and qualities. By reasonably adjusting the number, size, and distribution of the through holes 82, the input speed and distribution of wastewater can be flexibly controlled to meet the filtration needs under different operating conditions. Whether treating large flow rates of wastewater or wastewater with high impurity content, adjusting the parameters of the 81 inlet pipes 8 can ensure normal operation and good filtration results, improving the adaptability and versatility of the equipment.

[0041] Specifically, the liquid tank unit 1 is provided with a plurality of support rollers 34, which are located below the filter roller 2 and abut against the roller support 21 to assist in supporting the rotation of the roller support 21 when it rotates.

[0042] In actual use, the support roller 34 abuts against the roller bracket 21, providing auxiliary support when the roller bracket 21 rotates. This effectively distributes the weight of the filter roller 2, reducing deformation or swaying of the roller bracket 21 due to gravity, and keeping the filter roller 2 more stable during rotation. Stable rotation helps improve the uniformity and consistency of filtration by the annular filter screen 22, avoiding the impact of instability of the roller bracket 21 on the filtration effect, thereby improving the overall filtration quality of the equipment. By assisting in supporting the roller bracket 21, the support roller 34 reduces direct friction and wear between the roller bracket 21 and the liquid tank unit 1. Due to the rotational engagement of the support roller 34, the friction force on the roller bracket 21 during rotation is reduced. This not only reduces the wear of the roller bracket 21 and extends its service life, but also reduces wear on related parts of the liquid tank unit 1, which helps improve the durability of various components of the equipment and reduces the maintenance cost and frequency of component replacement.

[0043] Stable rotation and reduced wear contribute to improved equipment reliability. The presence of the support roller 34 ensures that the filter drum 2 maintains good working condition during long-term operation, reducing the probability of equipment failure due to instability or severe wear of the drum support 21. More reliable equipment operation guarantees continuous and stable wastewater filtration, improving equipment efficiency and practicality. When processing wastewater of different flow rates or properties, the load on the filter drum 2 may vary. The support roller 34 provides corresponding auxiliary support force according to load changes, ensuring stable rotation of the filter drum 2 under various operating conditions. This adaptability allows the equipment to better cope with different working conditions, expanding its application range and improving its versatility and practicality.

[0044] Specifically, the annular filter screen 22 has filter plates 221 that are detachably mounted on the roller support 21. The filter plates 221 are arc-shaped, and the number of filter plates 221 is set to multiple. The multiple filter plates 221 are arranged around the rotation axis of the roller support 21 and along the length direction of the rotation axis of the roller support 21 to form the annular filter screen 22.

[0045] In actual use, the annular filter screen 22 consists of multiple filter discs 221 that are detachably mounted on the roller support 21. When a filter disc 221 is damaged, severely clogged, or its filtration performance deteriorates, it is not necessary to disassemble the entire annular filter screen 22; only the corresponding filter disc 221 needs to be replaced. This greatly reduces the difficulty and cost of equipment maintenance, minimizes equipment downtime, and improves equipment maintainability. Moreover, replacing the filter disc 221 is relatively simple and can be completed quickly by staff, ensuring that the equipment can be restored to normal operation as soon as possible. Because the filter discs 221 are detachable, different precision filter discs 221 can be flexibly selected and combined according to different wastewater quality and filtration requirements. For example, for wastewater with larger impurity particles, a filter disc 221 with a larger pore size can be selected; for wastewater requiring high-precision filtration, a filter disc 221 with a smaller pore size can be used. This flexibility allows the equipment to better adapt to different working conditions, improving its versatility and adaptability, and meeting diverse liquid purification and filtration needs.

[0046] Multiple filter elements 221 are arranged around the rotation axis of the drum support 21 and along the length of the rotation axis of the drum support 21 to form an annular filter screen 22. This structure ensures the integrity and uniformity of the filtration area. During the filtration process, wastewater can evenly contact each filter element 221, avoiding filtration dead zones caused by improper installation or unreasonable structure of the filter elements 221, thereby improving the overall filtration effect, making the filtered water clearer, and removing impurities more thoroughly.

[0047] Specifically, the sewage discharge component 5 is equipped with a sewage discharge pipe, which discharges the impurities blown off by the backwash component 4 through the end of the water inlet pipe 81 away from the water inlet pipe 81, and the sewage discharge component 5 is not connected to the water inlet pipe 81.

[0048] In actual use, the drain assembly 5 is not connected to the inlet pipe 81. This effectively prevents impurities that have settled or been backwashed, as well as wastewater containing impurities, from flowing back to the inlet end of the equipment through the inlet pipe 81 and re-mixing into the wastewater to be filtered during the draining process. This ensures that the wastewater entering the filter drum 2 is always relatively clean wastewater to be treated, guaranteeing the initial conditions for filtration, avoiding secondary pollution, and thus improving the filtration effect and the stability of the effluent quality. The drain assembly 5, where the drain pipe is located, is set at the end of the inlet pipe 81 away from the inlet pipe 81, greatly optimizing the flow path of wastewater within the equipment. After the wastewater flows into the inlet pipe 81 through the inlet pipe 81, it is evenly dispersed into the filter drum 2 through the through hole 82 for filtration, while the impurities and wastewater generated by backwashing are discharged through the drain pipe at the other end of the inlet pipe 81. This layout reduces the disorderly flow and mutual interference of wastewater inside the equipment, allowing the wastewater to complete the filtration and draining process more smoothly and improving the operating efficiency of the equipment.

[0049] This layout helps optimize the overall structure of the equipment, making the center of gravity distribution more reasonable. The sewage discharge component 5 is located at one end of the inlet pipe 81, and works in conjunction with other components to enhance the structural stability of the equipment, reduce vibration and noise caused by center of gravity shift or unreasonable structure during operation, extend the service life of the equipment, and improve its reliability and safety.

[0050] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A drum-type liquid purification filtration apparatus, characterized by: The utility model provides a filter drum (2) is arranged on the liquid containing tank unit (1) and is rotated, and the sewage that the water inlet pipe (81) imports is filtered and handled under the drive of the filter drum (2) rotation, and the filtered water is discharged through the water outlet pipe (6) outside the filter drum (2), the backflushing assembly (4) is used for backflushing the impurities that the filter drum (2) filters, and the impurities under the flushing of backflushing assembly (4) fall into the blowdown assembly (5) under the action of gravity and flushing force and are discharged through the blowdown assembly (5).

2. A drum-type liquid purification filtering apparatus according to claim 1, characterized in that: The filter drum (2) has a drum support (21) arranged rotatably on the liquid containing tank unit (1), and an annular filter screen (22) is arranged on the drum support (21), the drive assembly (3) drives the drum support (21) to rotate, so that the annular filter screen forms a dynamic filtering surface in the sewage, and the rotation of the annular filter screen (22) cooperates with the backflushing assembly (4) to realize dynamic removal of impurities on the surface of the annular filter screen (22), and the effective filtering area is enlarged through continuous rotation.

3. A drum-type liquid purification filtering apparatus according to claim 1, characterized in that: The drive assembly (3) has a drive motor (31) arranged on the liquid containing tank unit (1), a first gear (32) is arranged on the output shaft of the drive motor (31), a second gear (33) is arranged rotatably on the liquid containing tank unit (1) and connected with the filter drum (2), and the outer diameter of the first gear (32) is smaller than the outer diameter of the second gear (33); the drive motor (31) drives the first gear (32) to drive the second gear (33) to rotate the filter drum (2).

4. A drum-type liquid purification filtering apparatus according to claim 1, characterized in that: The backflushing assembly (4) has a flushing pipe (41) arranged on the liquid containing tank unit (1), the flushing pipe (41) is provided with flushing pieces (42), the flushing pipe (41) is in communication with the flushing pieces (42) and an external water pump respectively, the number of the flushing pieces (42) is multiple, and the multiple flushing pieces (42) are arranged along the rotation axis direction of the filter drum (2), so that the backflushing water can uniformly cover the filtering surface of the filter drum (2).

5. A drum-type liquid purification filtering apparatus according to claim 1, characterized in that: The blowdown assembly (5) has a blowdown pipeline (51) mounted on the liquid containing tank unit (1), one end of the blowdown pipeline (51) extends out of the liquid containing tank unit (1), the other end is provided with a flow collecting plate (52) used in cooperation with the backflushing assembly (4), the flow collecting plate (52) is in the form of a funnel and is in communication with the blowdown pipeline (51), and the impurities under the flushing of the backflushing assembly (4) fall into the flow collecting plate (52) under the action of gravity and water flow, and the funnel-shaped structure of the flow collecting plate (52) can converge and guide the impurities into the blowdown pipeline (51) for discharge.

6. A drum-type liquid purification filtering apparatus according to claim 1, characterized in that: The filter roller (2) is provided with a support bearing (7) between the liquid container body unit (1), the filter roller (2) is rotatably arranged on the liquid container body unit (1) through the support bearing (7), the outer ring of the support bearing (7) is detachably connected with the filter roller (2), the inner ring is detachably connected with the liquid container body unit (1) and is matched with the pollution discharge assembly (5).

7. A drum-type liquid purification filtering apparatus according to claim 1, characterized in that: The water inlet pipeline (8) is arranged on the liquid container body unit (1), the two ends of the water inlet pipeline (8) are arranged on the liquid container body unit (1) away from each other, one end of the water inlet pipeline (8) is a water inlet pipe (81), the other end extends into the filter roller (2) of the liquid container body unit (1), and the water inlet pipeline (8) is provided with a through hole (82) for sewage outflow; the number of the through holes (82) is multiple, the multiple through holes (82) are arranged along the length direction of the water inlet pipeline (8) and around the central axis direction of the water inlet pipeline (8), sewage is input from the water inlet pipeline (8) and uniformly delivered into the filter roller (2) through the multiple through holes (82) for filtration.

8. A drum-type liquid purification filtering apparatus according to claim 2, characterized by: A plurality of support rotating wheels (34) are rotatably arranged on the liquid container body unit (1), the support rotating wheels (34) are located below the filter roller (2) and abut the roller support (21) to assist the rotation of the roller support (21) when rotating.

9. A drum-type liquid purification filtering apparatus according to claim 2, characterized in that: The annular filter screen (22) has a filter piece (221) which is detachably arranged on the roller support (21), the filter piece (221) is in an arc shape, the number of the filter pieces (221) is multiple, the multiple filter pieces (221) are arranged around the rotating axis of the roller support (21) and along the length direction of the rotating axis of the roller support (21) to form the annular filter screen (22).

10. A drum-type liquid purification filtering apparatus according to claim 7, characterized in that: The pollution discharge assembly (5) is provided with a pollution discharge pipe which discharges the impurities blown off by the backwashing assembly (4) through the end of the water inlet pipeline (8) away from the water inlet pipe (81), and the pollution discharge assembly (5) is not communicated with the water inlet pipe (81).

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