Water purification equipment
By setting up flocculation chambers, transition chambers, and sedimentation chambers in the water purification equipment, and optimizing the water flow path using baffles and surrounding plates, the pre-separation of impurities and efficient sedimentation are achieved, solving the problem of heavy load on sedimentation tanks and improving the purification efficiency and installation adaptability of the water purification equipment.
Patent Information
- Application Number
- CN202422574676.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-23
AI Technical Summary
When there are many impurities in the water, the sedimentation tank of the existing water purification equipment is under heavy load, which affects the purification efficiency.
Design a water purification device that includes a flocculation chamber, a transition chamber, a sedimentation chamber, and an ultrafiltration chamber. By setting up baffles, baffles, and a drain pipe, the water flow path is optimized to achieve pre-separation and efficient sedimentation of impurities, thereby improving flocculation efficiency.
By pre-separation and secondary sedimentation, the burden on the sedimentation chamber is reduced, the purification efficiency is improved, the equipment span is reduced, the installation adaptability is enhanced, and the flocculation effect is improved.
Smart Images

Figure CN223445362U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to water body purification technical field especially relates to a water purification equipment. BACKGROUND
[0002] With the rapid development of industrialization and urbanization, in order to guarantee the safety of people's production water and domestic water, need to use water purification equipment to carry out purification treatment to water body.
[0003] The invention patent with the publication number CN118307164A discloses a gas floating type flocculation sedimentation fiber filter tank, including filter element clamp and fiber filter element. The fiber filter element gradually reduces the pore size formed along the water flow direction, the top end forms a larger pore size to capture and intercept suspended solids with large particle size, the bottom end forms a smaller pore size to intercept and treat suspended solids with small particle size, realizes multi-stage deep filtration, improves the filtration effect of wastewater, and simultaneously provides backwash gas from bottom to top through the air distribution device, promotes the fiber filter element to be stretched upward under stress, since the fiber filter element is made of fiber material, after being stretched upward under stress, the fiber filter element is in a loose state, the pore size formed by the fiber filter element will expand, promotes the backwash water to be able to pass through the expanded pore size to flush the suspended solids intercepted at different positions, prevents the suspended solids from continuously adhering to the surface of the fiber filter element, and affects the subsequent filtration effect.
[0004] In the above technical scheme, in order to realize the purification of water body, the PH adjustment area, flocculation area, reaction area, sedimentation tank and fiber dynamic filtration area are arranged, however, when the impurities in the water body are more, the sedimentation tank will bear a large burden, which is not conducive to improving the purification efficiency of the water body. UTILITY MODEL CONTENTS
[0005] Therefore, the utility model provides a water purification equipment, which can reduce the impurity sedimentation burden of the sedimentation cavity and improve the purification efficiency of the water body.
[0006] The technical scheme of the utility model is achieved in the following way. The utility model provides a water purification equipment, which comprises a box body, a blowdown pipe, a stirrer, a honeycomb inclined pipe and an immersed ultrafiltration membrane assembly, wherein,
[0007] The box body is provided with a flocculation cavity, a transition cavity, a sedimentation cavity, an ultrafiltration cavity and a plurality of connecting holes, the flocculation cavity, the transition cavity, the sedimentation cavity and the ultrafiltration cavity are sequentially communicated through the plurality of connecting holes, the flocculation cavity, the sedimentation cavity and the ultrafiltration cavity are sequentially arranged along the length direction of the box body, the transition cavity is located at the bottom of the flocculation cavity, and the bottom sides in the transition cavity, the sedimentation cavity and the ultrafiltration cavity are all conical;
[0008] The blowdown pipe is fixedly penetrated through the box body and is in communication with the bottoms in the transition cavity, the sedimentation cavity and the ultrafiltration cavity respectively;
[0009] The stirrer, the honeycomb inclined pipe and the submerged ultrafiltration membrane assembly are respectively fixedly arranged in the flocculation cavity, the sedimentation cavity and the ultrafiltration cavity.
[0010] On the basis of the above technical scheme, preferably, it further comprises a water inlet pipe and a plurality of folded plates, wherein,
[0011] The water inlet pipe is fixedly penetrated on the box body and is in communication with the flocculation cavity;
[0012] The folded plates are fixedly arranged in the flocculation cavity, a plurality of the folded plates are alternately arranged up and down along the width direction of the box body, two sides of each folded plate are respectively provided with a stirrer, and the connecting holes for communicating the flocculation cavity and the transition cavity are oppositely arranged on the two sides of the plurality of folded plates.
[0013] Further preferably, it further comprises a surrounding plate, the cross section of the flocculation cavity is rectangular, the surrounding plates are respectively fixedly arranged at four top corners in the flocculation cavity and are respectively in sealing connection with two adjacent side walls and a bottom wall in the flocculation cavity.
[0014] Further preferably, one end of the water inlet pipe close to the flocculation cavity is located on the side of the surrounding plate close to the stirrer, the connecting holes for communicating the flocculation cavity and the transition cavity are located on the side of the surrounding plate away from the stirrer, and the top side of the surrounding plate between the connecting holes for communicating the flocculation cavity and the transition cavity and the stirrer is spaced apart from the top side in the flocculation cavity.
[0015] Further preferably, the connecting holes for communicating the flocculation cavity and the transition cavity are provided with two and are respectively one-to-one corresponding to two surrounding plates.
[0016] Further preferably, the top side of the surrounding plate between the connecting holes for communicating the flocculation cavity and the transition cavity and the stirrer is in sealing connection with the top side in the flocculation cavity.
[0017] On the basis of the above technical scheme, preferably, the connecting holes for communicating the transition cavity and the sedimentation cavity are provided with a plurality and are alternately arranged up and down along the width direction of the box body.
[0018] Further preferably, the axis of the connecting holes for communicating the transition cavity and the sedimentation cavity gradually rises in the direction from the transition cavity to the sedimentation cavity, and the axis of the honeycomb inclined pipe gradually decreases in the direction from the transition cavity to the sedimentation cavity.
[0019] On the basis of the above technical scheme, preferably, the water collecting box is fixedly arranged in the sedimentation cavity and located above the honeycomb inclined pipe, the side portion of the water collecting box is provided with a water inlet hole, and the connecting hole, which is connected between the sedimentation cavity and the ultrafiltration cavity, is connected with the inside of the water collecting box.
[0020] Further preferably, the number of the folded plates is even, the top side of the folded plate close to the water inlet pipe is arranged at intervals with the top side in the flocculation cavity, the bottom side of the folded plate away from the water inlet pipe is arranged at intervals with the bottom side in the flocculation cavity, and the water inlet pipe is located below the flocculation cavity.
[0021] The water purification equipment has the following beneficial effects compared with the prior art:
[0022] (1) By arranging the transition cavity, the impurities in the flocculated water body can be pre-separated, the water purification burden of the sedimentation cavity is reduced, the bottom sides in the transition cavity, the sedimentation cavity and the ultrafiltration cavity are all arranged in a conical shape, and the sewage pipe is arranged on the bottom wall in the transition cavity, the sedimentation cavity and the ultrafiltration cavity, so that the discharge efficiency of the impurities is improved, and the purification efficiency of the purification equipment is improved.
[0023] (2) By arranging the folded plate, the flocculation efficiency of the water body can be improved, the flocculation cavity, the sedimentation cavity and the ultrafiltration cavity are arranged along the length direction of the box body, and the folded plate is arranged along the width direction of the box body, so that the span of the water purification equipment is reduced, and the installation environment adaptability of the water purification equipment is improved.
[0024] (3) By arranging the baffle, not only the path length of the water body in the flocculation cavity can be increased, but also the corners of the flocculation cavity can be shielded, and the stirring dead angle can be eliminated, so that the flocculation efficiency of the water purification equipment is improved. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0026] Figure 1 It is a longitudinal sectional view of the water purification equipment of the present application;
[0027] Figure 2 It is a bottom view of the water purification equipment of the present application;
[0028] Figure 3 It is a transverse sectional view of the water purification equipment of the present application;
[0029] Figure 4 It is a sectional view of the flocculation cavity in the water purification equipment.
[0030] Figure 5 It is a sectional view of the transition cavity in the water purification equipment.
[0031] 1, box; 101, flocculation cavity; 102, transition cavity; 103, sedimentation cavity; 104, ultrafiltration cavity; 105, connecting hole; 2, sewage pipe; 3, stirrer; 4, honeycomb inclined pipe; 5, immersed ultrafiltration membrane assembly; 6, water inlet pipe; 7, folded plate; 8, coaming; 9, water collecting box; 901, water inlet hole. DETAILED DESCRIPTION
[0032] The technical solutions in the utility model will be clearly and completely described below in combination with specific implementation manners of the utility model. Apparently, the described implementation manners are only part of the implementation manners of the utility model, rather than all the implementation manners. Based on the implementation manners in the utility model, all other implementation manners obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0033] As shown in Figures 1-5 The utility model discloses a water purification equipment, including box 1, sewage pipe 2, stirrer 3, honeycomb inclined pipe 4, immersed ultrafiltration membrane assembly 5, water inlet pipe 6, folded plate 7, coaming 8 and water collecting box 9.
[0034] Among them, the box 1 is the main structure of the water purification equipment, is used for providing the environment for water purification, is equipped with flocculation cavity 101, transition cavity 102, sedimentation cavity 103, ultrafiltration cavity 104 and multiple connecting holes 105 in the box 1, and the flocculation cavity 101, transition cavity 102, sedimentation cavity 103 and ultrafiltration cavity 104 are sequentially communicated through multiple connecting holes 105, and water flows through the flocculation cavity 101, transition cavity 102, sedimentation cavity 103 and ultrafiltration cavity 104 sequentially.
[0035] Stirrer 3 is used for stirring water and flocculating agent, and is fixedly arranged in the flocculation cavity 101, when water and flocculating agent flow into the flocculation cavity 101, the stirrer 3 is fully stirred to water and flocculating agent, thereby promoting the flocculation of water, and the structure and principle of the stirrer 3 are prior art.
[0036] Honeycomb inclined pipe 4 is used for accelerating the sedimentation efficiency of impurities in water, and is fixedly arranged in the sedimentation cavity 103, and the laminar flow state is good, and the impurities in water are not disturbed by turbulent flow, thereby accelerating the sedimentation effect of impurities in water, and the structure and principle of the honeycomb inclined pipe 4 are prior art.
[0037] The submerged ultrafiltration membrane assembly 5 is used for ultrafiltration purification of the water body, is fixedly arranged in the ultrafiltration cavity 104, is prior art, comprises a main frame and a membrane wire, and the like structure, and after the water body sequentially passes through flocculation, sedimentation and ultrafiltration operations in the tank 1, the purification effect of the water body can be significantly improved; in order to improve the use convenience of the submerged ultrafiltration membrane assembly 5, the submerged ultrafiltration membrane assembly 5 with a backwashing function is preferably selected.
[0038] The water body subjected to the flocculation operation in the flocculation cavity 101 first flows into the transition cavity 102 to perform pre-sedimentation, so that part of impurities in the water body is separated from the water body, and then the water body flows into the sedimentation cavity 103 to perform secondary sedimentation, thereby reducing the burden of the sedimentation cavity 103. At the same time, the flocculation cavity 101, the sedimentation cavity 103 and the ultrafiltration cavity 104 are sequentially arranged along the length direction of the tank 1, and the transition cavity 102 is located at the bottom of the flocculation cavity 101. By using this layout, the lower part of the tank 1 can be used for sedimentation of impurities, thereby improving the space utilization of the water purification equipment.
[0039] The blowdown pipe 2 is used for discharging the sedimented impurities in the tank 1, the bottom sides of the transition cavity 102, the sedimentation cavity 103 and the ultrafiltration cavity 104 are conical; the blowdown pipe 2 penetrates and is fixed on the tank 1 and is in communication with the bottoms of the transition cavity 102, the sedimentation cavity 103 and the ultrafiltration cavity 104 respectively; by using this conical bottom structure, the collection and discharge efficiency of the impurities is improved.
[0040] The water inlet pipe 6 is used for being connected with a water body input device, penetrates and is fixed on the tank 1 and is in communication with the flocculation cavity 101, so that the water body flows into the flocculation cavity 101 from the previous step and realizes the water purification effect in the tank 1.
[0041] The folded plate 7 is used for improving the mixing effect of the water body and the flocculant, is fixedly arranged in the flocculation cavity 101, a plurality of folded plates 7 are alternately arranged up and down along the width direction of the tank 1, one agitator 3 is arranged at each side of each folded plate 7, and the connection hole 105 in communication with the flocculation cavity 101 and the transition cavity 102 is oppositely arranged at the two sides of the plurality of folded plates 7 relative to the water inlet pipe 6. Figure 4 As shown in the figure, the folded plate 7 is sealingly connected with two opposite side walls in the flocculation cavity 101, one of the two adjacent folded plates 7 is sealingly connected with the top wall of the flocculation cavity 101, and the other is sealingly connected with the bottom wall of the flocculation cavity 101, so that the water body flows along an S-shaped path in the flocculation cavity 101, the flow length and flow time of the water body in the flocculation cavity 101 are increased, and the mixing efficiency of the water body and the flocculant is improved.
[0042] As shown in the figure, the folded plate 7 is sealingly connected with two opposite side walls in the flocculation cavity 101, one of the two adjacent folded plates 7 is sealingly connected with the top wall of the flocculation cavity 101, and the other is sealingly connected with the bottom wall of the flocculation cavity 101, so that the water body flows along an S-shaped path in the flocculation cavity 101, the flow length and flow time of the water body in the flocculation cavity 101 are increased, and the mixing efficiency of the water body and the flocculant is improved. Figure 3As shown, the flocculation chamber 101, the sedimentation chamber 103 and the ultrafiltration chamber 104 are arranged in sequence along the length direction of the box body 1, and multiple folding plates 7 are arranged in sequence along the width direction of the box body 1, allowing the water body to flow along an L-shaped path in the box body 1, thereby reducing the overall span of the water purification equipment, allowing the water purification device to adapt to a smaller installation site, and improving the adaptability of the water purification equipment to the installation environment.
[0043] The enclosure 8 is used to eliminate the dead corners of stirring in the flocculation chamber 101. Figure 3 As shown, the cross-section of the flocculation chamber 101 is rectangular. When the agitator 3 rotates, the water at the four corners of the flocculation chamber 101 and the water at the top corners on both sides of the folding plate 7 do not contact the stirring blades, and the stirring effect is poor. The enclosures 8 are fixedly arranged at the four top corners of the flocculation chamber 101, and are sealed with the two adjacent side walls and the bottom wall of the flocculation chamber 101, so that there is no water at the four corners of the flocculation chamber 101, so that the water can fully contact the stirring blades; for the water at the top corners on both sides of the folding plate 7, in order to avoid the setting of the enclosure 8 affecting the overall flow of the water, the enclosure 8 is not set on the side of the folding plate 7.
[0044] like Figure 3 As shown, the end of the water inlet pipe 6 close to the flocculation chamber 101 is located on the side of the enclosure 8 close to the stirrer 3, the connecting hole 105 connecting the flocculation chamber 101 and the transition chamber 102 is located on the side of the enclosure 8 away from the stirrer 3, and the enclosure 8 ( Figure 4 The top side of the enclosure 8 on the middle right is spaced apart from the top side of the flocculation chamber 101. After passing through the flocculation chamber 101, the water can flow into the transition chamber 102 along the channel and the connecting hole 105 between the enclosure 8 and the top wall of the flocculation chamber 101. Since the top side of the enclosure 8 corresponding to the position of the connecting hole 105 (the connecting hole 105 connecting the flocculation chamber 101 and the transition chamber 102) is spaced apart from the top wall of the flocculation chamber 101, the enclosure 8 also plays the same role as the folding plate 7, which increases the flow time and length of the water in the flocculation chamber 101, thereby improving the flocculation effect of the water.
[0045] like Figure 3 As shown, there are two connecting holes 105 connecting the flocculation chamber 101 and the transition chamber 102, which correspond to the two enclosures 8 one by one, thereby increasing the flow cross-sectional area between the flocculation chamber 101 and the transition chamber 102, allowing the water in the flocculation chamber 101 to enter the transition chamber 102 as quickly as possible for pre-sedimentation.
[0046] like Figure 4 As shown, the enclosure 8 ( Figure 4The top side of the baffle plate 8 on the left side is in sealing connection with the top side in the flocculation cavity 101, so as to avoid the water body from entering the narrow channel between the baffle plate 8 and the inner wall of the flocculation cavity 101.
[0047] The number of the folding plates 7 is even, preferably 2, as shown in the drawings. Figure 4 As shown in the drawings, the top side of the folding plate 7 close to the water inlet pipe 6 (the folding plate 7 on the left side in the drawings) is spaced apart from the top side in the flocculation cavity 101, the bottom side of the folding plate 7 away from the water inlet pipe 6 (the folding plate 7 on the right side in the drawings) is spaced apart from the bottom side in the flocculation cavity 101, and the water inlet pipe 6 is located below the flocculation cavity 101, so that the water body can flow along the S-shaped path better and the effect of guaranteeing the water body to flow along the S-shaped path is ensured.
[0048] As shown in the drawings, Figure 5 A plurality of connection holes 105 connecting the transition cavity 102 and the sedimentation cavity 103 are arranged alternately in the width direction of the box body 1, that is, the connection holes 105 are arranged in zigzag shape, so that the water body in the transition cavity 102 can flow into the sedimentation cavity 103 uniformly, and the distance between adjacent two connection holes 105 is increased, so that the interference between adjacent two water flows is reduced.
[0049] As shown in the drawings, Figure 1 The axis of the connection hole 105 connecting the transition cavity 102 and the sedimentation cavity 103 gradually rises from the transition cavity 102 to the sedimentation cavity 103, so that the water flowing into the sedimentation cavity 103 does not wash the bottom of the sedimentation cavity 103, and the effect of guaranteeing the sedimentation of impurities in the sedimentation cavity 103 is ensured, and the axis of the honeycomb inclined pipe 4 gradually decreases from the transition cavity 102 to the sedimentation cavity 103, so that the water flowing into the sedimentation cavity 103 is not easy to flow into the honeycomb inclined pipe 4, so as to avoid the interference with the sedimentation effect of the water body.
[0050] The water collecting box 9 is used for collecting the upper layer water body in the sedimentation cavity 103, and is fixedly arranged in the sedimentation cavity 103 and located above the honeycomb inclined pipe 4, and the side portion is provided with a water inlet hole 901, and the connection hole 105 connecting the sedimentation cavity 103 and the ultrafiltration cavity 104 is in communication with the inside of the water collecting box 9, so that the upper layer water body in the sedimentation cavity 103 is relatively clean, and after flowing into the water collecting box 9 through the water inlet hole 901, the water body can flow into the ultrafiltration cavity 104 through the connection hole 105.
[0051] The working principle of the water purification equipment is as follows:
[0052] When the water body enters into the box 1 through the water inlet pipe 6, it firstly flows through the flocculation cavity 101, is mixed and stirred with the flocculating agent, then flows into the transition cavity 102 to pre-separate the impurities, then flows into the sedimentation cavity 103 to realize secondary separation of the impurities and the water body, and finally flows into the ultrafiltration cavity 104 to be filtered by the submerged ultrafiltration membrane assembly 5, so that clean water body is finally generated and is input into a water body demand unit; during the period, the impurities in the transition cavity 102, the sedimentation cavity 103 and the ultrafiltration cavity 104 can also be regularly discharged through the blowdown pipe 2, so as to maintain the clean water space and the clean water effect in the box 1.
[0053] The preferred embodiments of the present application have been described above, but the present application is not limited to the above, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A water purification device, characterized in that: It comprises a box body (1), a sewage pipe (2), an agitator (3), a honeycomb inclined tube (4) and an immersed ultrafiltration membrane assembly (5), wherein: The housing (1) is provided with a flocculation chamber (101), a transition chamber (102), a sedimentation chamber (103), an ultrafiltration chamber (104) and a plurality of connection holes (105); the flocculation chamber (101), the transition chamber (102), the sedimentation chamber (103) and the ultrafiltration chamber (104) are sequentially connected through the plurality of connection holes (105); the flocculation chamber (101), the sedimentation chamber (103) and the ultrafiltration chamber (104) are sequentially arranged along the length direction of the housing (1); the transition chamber (102) is located at the bottom of the flocculation chamber (101); and the bottom sides of the transition chamber (102), the sedimentation chamber (103) and the ultrafiltration chamber (104) are all conical; The sewage discharge pipe (2) is fixed to the box body (1) and is respectively connected to the bottom of the transition chamber (102), the sedimentation chamber (103) and the ultrafiltration chamber (104); The stirrer (3), the honeycomb inclined tube (4) and the submerged ultrafiltration membrane assembly (5) are fixedly arranged in the flocculation chamber (101), the precipitation chamber (103) and the ultrafiltration chamber (104), respectively.
2. A water purification device according to claim 1, characterized in that: It also includes a water inlet pipe (6) and a plurality of folding plates (7), wherein: The water inlet pipe (6) is fixed to the box body (1) and is in communication with the flocculation chamber (101); The folding plate (7) is fixedly arranged in the flocculation chamber (101), and a plurality of the folding plates (7) are alternately arranged up and down along the width direction of the box body (1), and an agitator (3) is respectively arranged on both sides of each folding plate (7), and the connecting hole (105) connecting the flocculation chamber (101) and the transition chamber (102) and the water inlet pipe (6) are arranged on both sides of the plurality of folding plates (7) relative to each other.
3. A water purification device according to claim 2, characterized in that: The flocculation chamber (101) further comprises a surrounding plate (8), the cross section of the flocculation chamber (101) being rectangular, the surrounding plates (8) being fixedly arranged at the four top corners of the flocculation chamber (101) and being sealedly connected to two adjacent side walls and a bottom wall of the flocculation chamber (101).
4. A water purification device according to claim 3, characterized in that: One end of the water inlet pipe (6) close to the flocculation chamber (101) is located on a side of the enclosure (8) close to the agitator (3), the connecting hole (105) connecting the flocculation chamber (101) and the transition chamber (102) is located on a side of the enclosure (8) away from the agitator (3), and the top side of the enclosure (8) located between the connecting hole (105) connecting the flocculation chamber (101) and the transition chamber (102) and the agitator (3) is spaced apart from the top side of the flocculation chamber (101).
5. A water purification device according to claim 4, characterized in that: Two connecting holes (105) are provided for connecting the flocculation chamber (101) and the transition chamber (102), and correspond one to one with the two enclosure plates (8).
6. A water purification device according to claim 5, characterized in that: The top side of the enclosure (8) that is not located between the connection hole (105) connecting the flocculation chamber (101) and the transition chamber (102) and the agitator (3) is sealedly connected to the top side inside the flocculation chamber (101).
7. A water purification device according to claim 1, characterized in that: A plurality of connecting holes (105) connecting the transition chamber (102) and the precipitation chamber (103) are provided, and the connecting holes (105) are alternately arranged up and down along the width direction of the box body (1).
8. A water purification device according to claim 7, characterized in that: The axis of the connecting hole (105) connecting the transition chamber (102) and the precipitation chamber (103) gradually rises in the direction from the transition chamber (102) to the precipitation chamber (103), and the axis of the honeycomb inclined tube (4) gradually descends in the direction from the transition chamber (102) to the precipitation chamber (103).
9. The water purification device according to claim 1, characterized in that: The invention also includes a water collecting box (9), which is fixedly arranged in the sedimentation chamber (103) and located above the honeycomb inclined tube (4), and a water inlet hole (901) is provided on its side, and the connecting hole (105) connecting the sedimentation chamber (103) and the ultrafiltration chamber (104) is connected to the interior of the water collecting box (9).
10. A water purification device according to claim 4, characterized in that: The number of the folded plates (7) is an even number, the top side of the folded plate (7) close to the water inlet pipe (6) is spaced apart from the top side of the flocculation chamber (101), the bottom side of the folded plate (7) away from the water inlet pipe (6) is spaced apart from the bottom side of the flocculation chamber (101), and the water inlet pipe (6) is located at the bottom of the flocculation chamber (101).
Citation Information
Patent Citations
Gas floating type flocculent precipitation fiber filter tank
CN118307164A