A fibrous and particulate filtration device

Abstract

The utility model provides a kind of fibre and particulate matter filtering device, it is related to a filtering structure, including the filter cartridge supported by support cylinder and the bucket cover supported by cover plate movable support, the bottom of filter cartridge is equipped with the conical surface cylinder wall of upward flaring, conical surface cylinder wall is equipped with water outlet, vibration motor with the bottom drive connection of filter cartridge and with three-dimensional vibration capacity is installed on support cylinder, a group of slag outlet is opened in the sidewall of filter cartridge above screen, slag outlet is movable sealed by movable baffle, bucket cover is the conical cover body of downward flaring, the bottom of conical cover body is supported on the edge of filter cartridge by lap joint, and by the multiple groups of horizontal connecting rods extending outward, it is connected on cover plate movable support, the center of conical cover body is equipped with feed inlet, and still by a group of flushing main pipe, multiple groups of flushing branch pipes placed in filter cartridge are connected on conical cover body, rotating spray head is arranged on flushing branch pipe, the utility model can realize more efficient, stable filtering effect, and structure safety stability is also better when operating.

Description

Technical Field

[0001] This utility model relates to a filtration structure, and more particularly to a fiber and particulate matter filtration device. Background Technology

[0002] In key areas of modern environmental protection and resource recycling, the treatment of various liquid materials such as biogas slurry, municipal wastewater, and leachate has become a core link determining the quality of the ecological environment and the sustainable development of industries. These liquid materials generally contain a large number of particulate matter and fibrous impurities of various shapes. Their presence acts like "hidden reefs" lurking in the treatment process, not only seriously interfering with the stable operation of subsequent processes but also significantly reducing the quality of treated products and potentially causing equipment failures, thus significantly increasing operating costs. Therefore, how to achieve efficient separation of particulate matter and fibers has become a critical technical bottleneck that the industry urgently needs to overcome.

[0003] Currently, in the field of liquid material filtration and separation, conventional manual bag filters and basket filters were the main applications. However, these devices have numerous drawbacks in actual operation. Whenever processing liquids containing particulate matter and fibers, these impurities accumulate rapidly on the screen like a tide, gradually filling the screen pores. As the blockage worsens, the effective filtration area of ​​the screen decreases sharply, and the filtration resistance increases exponentially, causing the filter's operating efficiency to drop sharply. To maintain equipment operation, operators have to frequently clean the filters offline. This manual cleaning method is not only time-consuming and labor-intensive, but also extremely inefficient, requiring a large investment of manpower. It is severely out of step with the needs of modern large-scale, continuous industrial production, becoming a major constraint on the industry's development.

[0004] To overcome the limitations of manual filters, automatic cleaning filters have emerged. While these devices have achieved a certain degree of automation in cleaning, the automatic rotating brush cleaning method used in most cases is ineffective when dealing with fibrous particles. Fine and flexible fibers easily become entangled and caught on the mesh, and no matter how repeatedly the brush rotates, it is difficult to remove them completely, resulting in limited improvement in filtration efficiency. More problematic is that for materials with large flow rates and many impurities, existing automatic cleaning filters require a large amount of rinsing water to achieve a basic cleaning effect. This not only increases the burden on wastewater treatment but also keeps the system wastewater volume high. Frequent start-ups and shutdowns of the equipment also bring many uncertainties to the stable operation of subsequent equipment, causing a decline in the efficiency of the treatment system, a surge in energy consumption, and creating a vicious cycle. Utility Model Content

[0005] Against the backdrop of industry development difficulties and an urgent need for technological innovation, the fiber and particulate matter filtration device developed in this utility model stands out, opening up a new path for the efficient filtration and separation of liquid materials. This device innovatively integrates the three-dimensional vibration principle of the motor with a separate support installation method for the filter cartridge and the lid. Its core lies in the fact that when liquid materials flow through the screen, impurities are intercepted on the upper layer, while the powerful centrifugal force generated by the motor acts like an efficient "clearing vehicle," quickly centrifuging the particles on the screen to the slag outlet, achieving rapid and thorough separation of solid slag. This centrifugal separation method greatly shortens the residence time of particles on the screen, reducing the risk of screen blockage from the source and laying a solid foundation for stable equipment operation. The separate support installation method for the filter cartridge and the lid ensures that while the filter cartridge has strong vibration, it also ensures that even if the filter cartridge is subjected to vibration from the three-dimensional vibration motor, the vibration force transmitted to the lid is greatly reduced, thereby greatly improving the connection life of the equipment connectors installed on the lid.

[0006] This utility model provides the following technical solution:

[0007] A fiber and particulate matter filtration device includes a filter cylinder supported by a support cylinder and a lid supported by a movable cover plate. A set of screens is spaced between the bottom and top of the filter cylinder. The bottom of the filter cylinder has an upwardly flared conical wall with an outlet. A vibration motor with three-dimensional vibration capability, driven and connected to the bottom of the filter cylinder, is mounted on the support cylinder. This vibration motor is existing technology, as shown in the patent "Easy-to-Maintain Three-Dimensional Vibrating Screen" (Publication No.: CN217989949U). A set of slag outlets is also provided on the side wall of the filter cylinder above the screens, and the slag outlets are movably sealed by a movable baffle. The lid is a downwardly flared conical cover. The bottom of the conical cover is supported on the edge of the filter cartridge and connected to the movable support of the cover plate by multiple sets of horizontal connecting rods extending outward. The center of the conical cover is provided with a feed inlet, and the conical cover is also connected to multiple sets of flushing branch pipes placed inside the filter cartridge through a set of flushing main pipes. The flushing branch pipes are equipped with rotating nozzles. The rotating nozzles are used to spray cleaning liquid to flush the screen surface after the screen is blocked. At the same time, because the filter cartridge and the cover are separated and supported by abutment, even if the filter cartridge is subjected to vibration from a vibration motor with a three-dimensional vibration effect, the vibration force transmitted to the cover is greatly reduced, thereby greatly improving the connection life of the equipment connectors installed on the cover.

[0008] Preferably, the movable support of the cover plate includes a double-layered sleeve, with the outer larger sleeve wrapping around the inner smaller support tube to form a flexible buffer connection. The horizontal connecting rod is fixed on the larger sleeve, and a support pad is spaced between the larger sleeve and the smaller support tube to further improve the buffering effect. This design effectively isolates the filter cartridge vibration from the rigid collision between the filter cartridge and the cover, reducing operating noise by more than 40% and creating a more user-friendly working environment for operators.

[0009] Preferably, the conical cover is provided with three sets of circular observation ports. The observation port cover is detachable and fits onto the observation port. Each set of observation ports is also provided with a set of semi-circular baffles. The baffles are set to open towards the center of the cover. Therefore, when liquid splashes out of the observation port during rinsing, the baffles can promptly guide it back into the device, avoiding secondary pollution and safety hazards.

[0010] Preferably, the conical cover is also provided with a set of odor vents, which are connected to a deodorization system. Therefore, for materials with a strong odor, the odor can be discharged through the odor vents and deodorized by the deodorization system.

[0011] Preferably, a set of pipe buffer devices is also provided below the feed inlet, which are used to guide and uniformly disperse the material entering through the feed inlet.

[0012] Preferably, the pipeline buffer device includes a guide pipe that is supported below and coaxially arranged with the inlet, and a conical flow plate supported below the guide pipe. The conical flow plate is an flared guide plate facing the filter screen opening, and the center of the guide plate is coaxially arranged with the inlet. There is an adjustment gap between the guide plate and the guide pipe, and the surface of the guide plate is evenly distributed with material equalization holes. At least two sets of screws are also fixed on the guide plate. The screws pass through the barrel cover and are screwed to the threaded sleeve that is converted and installed on the barrel cover. Thus, the material entering from the inlet can be evenly dispersed to the upper part of the screen under the guidance of the guide pipe and the material equalization of the conical flow plate, avoiding uneven screening caused by local overload. At the same time, the gap between the conical flow plate and the guide pipe can be adjusted by rotating the threaded sleeve at the same time, and the threaded sleeve must be rotated at the same time during adjustment to avoid changes caused by vibration or misoperation.

[0013] The beneficial effects of this utility model are:

[0014] S1: High-efficiency solid-liquid separation step – intelligent interception based on ternary vibration

[0015] At the start of the equipment, the vibrating motor runs first, driving the pendulum to generate a three-dimensional vibration effect. Compared with the single-dimensional vibration mode of traditional equipment, this causes the connected screen and filter cylinder to vibrate up and down while also generating centrifugal motion. This composite motion mode not only improves the screening efficiency of the screen, but also enhances the separation driving force of impurities through centrifugal force. Because of the separate abutment support of the filter cylinder and the lid, even if the filter cylinder is vibrated by the vibrating motor with a three-dimensional vibration effect, the vibration force transmitted to the lid is greatly reduced, which also greatly improves the connection life of the equipment connectors installed on the lid. After the equipment enters a stable vibration state, the material conveying device is started. The material enters the device through the feed inlet and first passes through the pipeline buffer device. This buffer device adopts a streamlined flow guiding structure and a multi-hole distribution design, which can evenly disperse the material to the upper part of the screen and avoid uneven screening caused by local overload. When the material comes into contact with the screen, particles and fibers with a diameter larger than the screen aperture (0.2-1.0mm, which can be flexibly selected according to actual needs) are immediately and accurately trapped on the screen surface. Under the combined action of the up-and-down vibration generated by the three-dimensional vibration motor and centrifugal force, the trapped impurities on the screen undergo a wonderful transformation: the originally randomly piled particles gradually agglomerate into spheres during vibration, and then, driven by the strong centrifugal force, they move quickly along the screen surface towards the slag outlet, finally completing the automatic slag discharge process. Meanwhile, particles and liquids with a diameter smaller than the screen aperture pass through the screen smoothly and flow into the 110-outlet through the bottom channel, achieving efficient solid-liquid separation. Throughout the process, the continuously fed material repeats the above steps to ensure the continuity and efficiency of solid-liquid separation.

[0016] S2: Intelligent automatic rinsing process – all-around cleaning with high-pressure rotary jet.

[0017] When the system reaches the preset time or detects a screen blockage warning signal, the equipment will automatically trigger the cleaning process. At this time, the material conveying device stops working, and the interlocked automatic flushing valve opens rapidly. High-pressure water (pressure 1-6MPa) is precisely injected into the rotating nozzle through the flushing main pipe. The rotating nozzle adopts a modular quick-connect design and can be quickly disassembled and assembled through various connection methods such as internal threads, clamps, or external threads, which is convenient for later maintenance and replacement. Under high pressure, the circular bottom spray nozzle of the rotating nozzle forms a uniform spray fan-shaped area. Combined with the 180-degree automatic rotation function of the nozzle, it performs all-round, no-dead-angle fan-shaped flushing of the screen surface. The pipeline layout of the flushing system is also carefully designed: the flushing main pipe is connected to the flushing branch pipes of the "Y"-shaped structure. Each flushing branch pipe is evenly arranged with 3-4 automatic nozzles to ensure that the flushing water covers the entire screen area. In addition, the flushing main pipes inside and outside the bucket lid are connected by a union. This design also greatly simplifies the pipeline disassembly and assembly process and significantly reduces the maintenance difficulty and time cost.

[0018] S3: Low noise and easy maintenance design

[0019] To address the pain points of high operating noise and cumbersome maintenance in traditional solid-liquid separation equipment, this device incorporates several innovative optimizations in its structural design. For noise reduction, three movable supports are arranged around the tank lid. These supports utilize a double-layer sleeve structure—a larger outer sleeve encases a smaller inner support tube, forming a flexible buffer connection. This design effectively isolates the rigid collision between the filter cartridge and the tank lid, reducing operating noise by over 40% and creating a more user-friendly working environment for operators. Regarding ease of maintenance, three circular observation ports on the tank lid provide inspectors with a window to observe the solid-liquid separation status inside the filter cartridge in real time. When the screen's processing efficiency decreases due to microbial adhesion or fine fiber entanglement, operators do not need to disassemble the entire machine; they only need to open the observation port cover to observe through the port or use a 5- An 8MPa high-pressure water gun is used for offline rinsing. After rinsing, the observation port cover can be closed again to quickly restore equipment operation, greatly shortening downtime for maintenance. In order to further improve the safety and reliability of the equipment, the observation port is equipped with a complete protective structure: a semi-circular baffle plate is set at the bottom of the observation port cover to surround the observation port. The baffle plate adopts a semi-circular flow guiding design, which can promptly guide the liquid splashed during rinsing back into the device to avoid secondary pollution and safety hazards. For materials with strong odors, an odor vent is also provided, which can be connected to a deodorization system.

[0020] In summary, this device overcomes the technical shortcomings of traditional equipment by organically combining three core functions: solid-liquid separation, automatic flushing, and convenient maintenance. It has achieved significant breakthroughs in improving separation efficiency, reducing operating costs, and enhancing system stability, bringing a brand-new technical solution and development approach to the field of liquid material processing. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a front sectional view of the entire device of this utility model;

[0023] Figure 2 This is a top view of the bucket lid;

[0024] Figure 3 This is a partial schematic diagram of the pipe buffer device on the upper part of the bucket lid in Embodiment 2;

[0025] Markings in the diagram:

[0026] 101. Feed inlet; 102. Pipeline buffer device; 103. Flushing main pipe; 104. Observation port; 105. Rotary nozzle; 106. Cover plate movable support; 107. Slag outlet; 108. Screen; 109. Vibrating motor; 110. Water outlet; 111. Support cylinder; 201. Bucket cover; 203. Water baffle; 204. Observation hole cover; 207. Odor outlet; 209. Movable baffle; 1021. Guide pipe; 1022. Conical flow plate; 1023. Screw; 1024. Threaded sleeve. Detailed Implementation

[0027] Example 1

[0028] like Figure 1-2 As shown, a fiber and particulate matter filtration device, in this embodiment, includes a filter cylinder supported by a support cylinder 111 and a barrel cover 201 supported by a movable cover plate support 106. A set of screens 108 is spaced between the bottom and top of the filter cylinder. The bottom of the filter cylinder has an upwardly flared conical wall with an outlet 110. A vibration motor 109 with three-dimensional vibration capability is also installed on the support cylinder 111 and is driven to the bottom of the filter cylinder. This vibration motor 109 is prior art, as shown in the patent "Easy-to-maintain Three-dimensional Vibrating Screen" (publication number: CN217989949U). A set of slag outlets 107 are also provided on the side wall of the filter cylinder above the screens 108. The slag outlets 107 are movably sealed by a movable baffle 209. The barrel cover 201 is downwardly flared. The conical cover has its bottom overlapping and supported on the edge of the filter cartridge, and is connected to the cover plate movable support 106 by multiple sets of outwardly extending horizontal connecting rods. The center of the conical cover has a feed inlet 101, and the conical cover is also connected to multiple sets of flushing branch pipes placed inside the filter cartridge by a set of flushing main pipes 103. The flushing branch pipes are equipped with rotating nozzles 105. The rotating nozzles 105 are used to spray cleaning liquid after the screen 108 is blocked, so as to flush the surface of the screen 108. At the same time, because of the separate abutment support between the filter cartridge and the cover 201, even if the filter cartridge is subjected to vibration of the vibration motor 109 with three-dimensional vibration effect, the vibration force transmitted to the cover 201 is greatly reduced, thereby greatly improving the connection life of the equipment connectors installed on the cover 201.

[0029] The cover plate movable support 106 includes a double-layered sleeve. The outer large sleeve wraps around the inner small support tube to form a flexible buffer connection. The horizontal connecting rod is fixed on the large sleeve, and there is also a support pad between the large sleeve and the small support tube to further improve the buffering effect. This design effectively isolates the filter cartridge vibration from the rigid collision between the filter cartridge and the cover 201, reducing the operating noise by more than 40% and creating a more friendly working environment for operators.

[0030] The conical cover is also provided with three sets of circular observation ports 104. The observation port cover 204 is detachably closed on the observation port 104. Each set of observation ports is also provided with a set of semi-circular baffles 203. The baffles 203 are set to open towards the center of the cover 201. Therefore, when liquid splashes out of the observation port 104 during the rinsing process, the baffles 203 can promptly guide the liquid back into the device to avoid secondary pollution and safety hazards.

[0031] The conical cover is also provided with a set of odor vents 207, which are connected to a deodorization system. Therefore, for materials with a strong odor, the odor can be discharged through the odor vents 207 and deodorized by the deodorization system.

[0032] A set of pipe buffer devices 102 is also provided below the feed inlet 101. The pipe buffer devices 102 are used to guide and uniformly disperse the material entering through the feed inlet 101.

[0033] Example 2

[0034] like Figure 3 As shown, a fiber and particulate matter filtration device, in this embodiment, is a further limitation based on Embodiment 1. The pipeline buffer device 102 includes a guide tube 1021 supported below and coaxially arranged with the inlet 101, and a conical flow plate 1022 supported below the guide tube 1021. The conical flow plate 1022 is an flared guide plate facing the filter screen opening, and the center of the guide plate is coaxially arranged with the inlet 101. There is an adjustment gap between the guide plate and the guide tube 1021, and the surface of the guide plate is uniformly distributed with material equalization holes. The guide plate is also fixed with... There are at least two sets of screws 1023. The screws 1023 pass through the barrel cover 201 and are screwed to the threaded sleeves 1024 that are adapted to be installed on the barrel cover 201. Thus, the material entering from the feed inlet 101 can be evenly dispersed to the upper part of the screen 108 under the guidance of the guide tube 1021 and the uniform distribution of the conical flow plate 1022, avoiding uneven screening caused by local overload. At the same time, the gap between the conical flow plate 1022 and the guide tube 1021 can be adjusted by rotating the threaded sleeve 1024 at the same time. The threaded sleeve 1024 must be rotated at the same time during adjustment to avoid changes caused by vibration or misoperation.

[0035] The working principle of this utility model is as follows:

[0036] S1: High-efficiency solid-liquid separation step – intelligent interception based on ternary vibration

[0037] At the start of the equipment, the vibrating motor 109 operates first, driving the pendulum to generate a three-dimensional vibration effect. Compared with the single-dimensional vibration mode of traditional equipment, this causes the screen 108 and filter cylinder connected to it to vibrate up and down while also generating centrifugal motion. This composite motion mode not only improves the screening efficiency of the screen 108, but also enhances the separation driving force of impurities through centrifugal force. Because of the separate abutment support of the filter cylinder and the barrel cover 201, even if the filter cylinder is vibrated by the vibrating motor 109 with a three-dimensional vibration effect, the vibration force transmitted to the barrel cover 201 is greatly reduced, which also greatly improves the connection life of the equipment connectors installed on the barrel cover 201. After the equipment enters a stable vibration state, the material conveying device is started. The material enters the device through the feed inlet 101 and first passes through the pipeline buffer device 102. This buffer device adopts a streamlined flow guiding structure and a porous distribution design, which can evenly disperse the material to the upper part of the screen 108 and avoid uneven screening caused by local overload. When the material comes into contact with the screen 108, particles and fibers with a diameter larger than the aperture of the screen 108 (0.2-1.0 mm, which can be flexibly selected according to actual needs) are immediately and accurately trapped on the surface of the screen 108. Under the combined action of the up-and-down vibration generated by the three-dimensional vibration motor 109 and the centrifugal force, the trapped impurities on the screen 108 undergo a wonderful transformation: the originally randomly piled particles gradually agglomerate into spheres during vibration, and then, driven by the strong centrifugal force, they move quickly along the surface of the screen 108 towards the slag outlet 107, finally completing the automatic slag discharge process. Meanwhile, particles and liquids with a diameter smaller than the aperture of the screen 108 smoothly penetrate the screen 108 and flow through the bottom channel to the water outlet 110, achieving efficient solid-liquid separation. Throughout the process, the continuously fed material repeats the above steps to ensure the continuity and efficiency of solid-liquid separation.

[0038] S2: Intelligent automatic rinsing process – all-around cleaning with high-pressure rotary jet.

[0039] When the system reaches the preset time or detects a clogging warning signal for screen 108, the equipment will automatically trigger the cleaning process. At this time, the material conveying device stops working, and the interlocked automatic flushing valve quickly opens. High-pressure water (pressure 1-6MPa) is precisely injected into the rotary nozzle 105 through the flushing main pipe 103. The rotary nozzle 105 adopts a modular quick-connect design, which can be quickly disassembled and assembled through various connection methods such as internal threads, clamps, or external threads, facilitating later maintenance and replacement. Under high pressure, the circular bottom spray nozzle of the rotary nozzle 105 forms a uniform spray fan-shaped area, and with the 180-degree automatic rotation function of the nozzle, it performs all-round, no-dead-angle fan-shaped flushing of the screen 108 surface. The pipeline layout of the flushing system is also carefully designed: the flushing main pipe 103 is connected to the flushing branch pipes of the "Y"-shaped structure, and each flushing branch pipe is evenly arranged with 3- Four automatic nozzles ensure that the rinsing water flow covers the entire screen 108 area. In addition, the rinsing main pipe 103 inside and outside the barrel cover 201 is connected by a union. This design also greatly simplifies the pipeline disassembly and assembly process and significantly reduces maintenance difficulty and time cost.

[0040] S3: Low noise and easy maintenance design

[0041] To address the pain points of high operating noise and cumbersome maintenance in traditional solid-liquid separation equipment, this device incorporates several innovative optimizations in its structural design. Regarding noise reduction, three movable cover supports 106 are arranged around the barrel cover 201. These supports 106 employ a double-layer sleeve structure—a larger outer sleeve encases a smaller inner support tube, forming a flexible buffer connection. This design effectively isolates the rigid collision between the filter cartridge and the barrel cover 201, reducing operating noise by over 40% and creating a more user-friendly working environment for operators. In terms of ease of maintenance, three circular observation ports 104 on the barrel cover 201 provide inspection personnel with a window to observe the solid-liquid separation status inside the filter cartridge in real time. When the screen 108 experiences a decrease in processing efficiency due to microbial adhesion or fine fiber entanglement, operators do not need to disassemble the entire machine; they only need to open the observation port cover 204 to observe or use the equipment. An 8MPa high-pressure water gun is used for offline rinsing. After rinsing, the observation port cover 204 is closed again, and the equipment can be quickly restored to operation, which greatly shortens the downtime for maintenance. In order to further improve the safety and reliability of the equipment, the observation port 104 is equipped with a complete protective structure: a semi-circular baffle 203 is set at the bottom of the observation port cover 204 to surround the observation port 104. The baffle 203 adopts a semi-circular flow guiding design, which can timely guide the splashed liquid during the rinsing process back into the device to avoid secondary pollution and safety hazards. For materials with strong odor, an odor port 207 is also provided, which can be connected to a deodorization system.

[0042] In summary, this device overcomes the technical shortcomings of traditional equipment by organically combining three core functions: solid-liquid separation, automatic flushing, and convenient maintenance. It has achieved significant breakthroughs in improving separation efficiency, reducing operating costs, and enhancing system stability, bringing a brand-new technical solution and development approach to the field of liquid material processing.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fibrous and particulate filtering device, characterized by, The system includes a filter cylinder supported by a support cylinder and a lid supported by a movable cover plate. A set of screens is spaced between the bottom and top of the filter cylinder. The bottom of the filter cylinder has an upwardly flared conical wall with a water outlet. A vibration motor with three-dimensional vibration capability is installed on the support cylinder and is driven to the bottom of the filter cylinder. A set of slag outlets is also provided on the side wall of the filter cylinder above the screens, and these outlets are movably sealed by a movable baffle. The lid is a downwardly flared conical cover, with its bottom overlapping and supported on the edge of the filter cylinder. It is connected to the movable cover plate support via multiple outwardly extending horizontal connecting rods. A feed inlet is located at the center of the conical cover, and multiple flushing branch pipes placed inside the filter cylinder are connected to the conical cover via a flushing main pipe. Rotary nozzles are installed on the flushing branch pipes. These nozzles are used to spray cleaning liquid to flush the screen surface after a screen blockage warning is triggered.

2. The fiber and particulate filtering device of claim 1, wherein, The cover plate movable support includes a double-layered sleeve, with the outer large sleeve wrapping the inner small support tube. The horizontal connecting rod is fixed on the large sleeve, and there is a support pad between the large sleeve and the small support tube.

3. The fiber and particulate filter device of claim 1, wherein, The conical cover is also provided with three sets of circular observation ports. The observation port cover is detachable and fits onto the observation port. In addition, a semi-circular baffle is provided outside each set of observation ports. The baffle is set to open towards the center of the bucket cover.

4. The fiber and particulate filter device of claim 1, wherein, The conical cover is also provided with a set of odor vents, which are connected to a deodorization system.

5. The fiber and particulate filter device of claim 1, wherein, A set of pipe buffer devices is also provided below the feed inlet, which is used to guide and evenly disperse the material entering through the feed inlet.

6. A fibrous and particulate filtering device according to claim 5, wherein, The pipeline buffer device includes a guide pipe that is supported below the feed inlet and coaxially arranged with the feed inlet, and a conical flow plate supported below the guide pipe. The conical flow plate is an flared flow plate facing the filter screen opening, and the center of the flow plate is coaxially arranged with the feed inlet. There is an adjustment gap between the flow plate and the guide pipe, and the surface of the flow plate is evenly distributed with material equalization holes. At least two sets of screws are also fixed on the flow plate. The screws pass through the barrel cover and are screwed to the threaded sleeves that are adapted to be installed on the barrel cover.

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