A composite rotary filter membrane and its installation structure

Abstract

The present invention relates to a composite rotary filter membrane and its installation structure, belonging to the field of filter membranes. It includes a framework, and the framework includes an annular mounting plate. The part between the outer edge and the inner edge on both side surfaces of the mounting plate is recessed downward to form a recessed groove, and an outer convex ring and an inner convex ring are formed on the outer edge and the inner edge of both side surfaces of the mounting plate; a membrane is connected between the outer convex ring and the inner convex ring on the same side surface of the mounting plate, and the membrane is sealingly and cooperatively arranged with the outer convex ring and the inner convex ring. The recessed groove between the membrane and the outer convex ring and the inner convex ring encloses a receiving cavity; a plurality of through holes penetrating through the inner convex ring are also formed on the side wall of the inner convex ring corresponding to the receiving cavity, and the through holes communicate with the receiving cavity. The present invention can effectively improve the production efficiency of the filtering device equipped with the present invention.

Description

Technical Field

[0001] The present invention relates to the field of filter membranes, and particularly to a composite rotary filter membrane and its installation structure. Background Art

[0002] Filter membranes are used for filtering liquids. Its filtering principle is as follows: within a certain range of membrane pore diameters, with the pressure difference across the membrane as the driving force and the membrane as the filtering medium, when the feed liquid flows through the membrane surface under a certain pressure, only substances with particle sizes smaller than the membrane pores are allowed to pass through the membrane, while substances with particle sizes larger than the membrane pores in the feed liquid are blocked. Among them, since the structure of the filter membrane that plays a filtering role is the membrane pores on it, and the membrane pores are easily blocked during use. Therefore, the filter membrane needs to be cleaned multiple times during its entire service life to unclog the blocked membrane pores so that it can work properly. Cleaning the filter membrane requires removing the filter membrane from the filtering device. The disassembly and cleaning of the filter membrane will undoubtedly affect the normal operation of the filtering device, reduce its production efficiency, and consume a lot of labor.

[0003] Based on this, the present invention provides a composite rotary filter membrane to reduce the blockage of the membrane pores on it during the filtering process, thereby achieving the effect of shortening its cleaning frequency, and even achieving the effect of not requiring cleaning of the filter membrane during its entire service life, so as to improve the production efficiency of the filtering device equipped with this filter membrane. Summary of the Invention

[0004] Based on this, it is necessary to provide a composite rotary filter membrane, including a skeleton. The skeleton includes an annular mounting plate. The part between the outer edge and the inner edge on both side surfaces of the mounting plate is recessed downward to form a recessed groove, and an outer convex ring and an inner convex ring are formed on the outer edge and the inner edge of both side surfaces of the mounting plate. A membrane sheet is connected between the outer convex ring and the inner convex ring on the same side surface of the mounting plate, and the membrane sheet is hermetically fitted with the outer convex ring and the inner convex ring. The recessed groove between the membrane sheet and the outer convex ring and the inner convex ring encloses a receiving cavity. A plurality of through holes penetrating the inner convex ring are further provided on the side wall of the inner convex ring corresponding to the receiving cavity, and the through holes communicate with the receiving cavity.

[0005] In the present invention, the composite rotary filter membrane needs to be installed on a rotational drive structure for use. During use, the composite rotary filter membrane is driven to rotate by the rotational drive structure. During this process, liquid can enter the accommodation cavity from the outside of the composite rotary filter membrane, and then leave the accommodation cavity through the through holes communicating with the accommodation cavity, thereby realizing the filtration of the liquid by the membrane sheet. Among them, since the composite rotary filter membrane rotates while filtering the liquid, the membrane sheet thereon will vibrate under the action of its own rotation and the impact of the liquid, thereby effectively shaking off the impurities blocking the membrane pores of the membrane sheet, and further effectively avoiding the blockage of the membrane pores of the membrane sheet, so as to shorten the cleaning frequency of the membrane sheet and improve the production efficiency of the filtration equipment using the composite rotary filter membrane.

[0006] In the present invention, by changing the membrane sheet material and the pore diameter of the membrane pores of the membrane sheet, the composite rotary filter membrane of the present invention can be made suitable for filtering different types of wastewater.

[0007] For example, by setting the pore diameter of the membrane pores of the membrane sheet to 1 micron, the composite rotary filter membrane of the present invention can be made suitable for filtering the wastewater in the PCB desmearing process. Among them, the material of the membrane sheet is selected as titanium plus Teflon to improve the ability of the membrane sheet to resist high temperature of the chemical solution and resist strong alkali oxidation;

[0008] By setting the pore diameter of the membrane pores of the membrane sheet to 0.1 - 1 micron, the composite rotary filter membrane of the present invention can be made suitable for filtering the wastewater in the PCB copper plating process. Among them, the material of the membrane sheet is selected as Teflon material;

[0009] By setting the pore diameter of the membrane pores of the membrane sheet to 1 micron, the composite rotary filter membrane of the present invention can be made suitable for filtering the wastewater in the PCB etching process. Among them, the material of the membrane sheet is selected as Teflon material;

[0010] By setting the pore diameter of the membrane sheet to 10 - 40 microns, the composite rotary filter membrane of the present invention can be made suitable for filtering the wastewater in the PCB film stripping process. Among them, the material of the membrane sheet is selected as stainless steel. The stainless steel membrane sheet with a precision of 10 - 40 microns can block fine broken films and improve the quality of the stripping solution;

[0011] By setting the pore diameter of the membrane sheet to 10 nanometers, the composite rotary filter membrane of the present invention can be made suitable for filtering the wastewater in the PCB tin plating process. Among them, the material of the membrane sheet is Teflon. The Teflon membrane sheet with a precision of 10 nanometers can intercept divalent tin in the tin plating;

[0012] By setting the pore diameter of the membrane sheet to 0.1 - 1 micron, the composite rotary filter membrane of the present invention can be made suitable for the on-line carbon treatment process of PCB. Among them, the material of the membrane sheet is Teflon. The Teflon membrane sheet with a precision of 0.1 - 1 micron can filter out carbon powder in the wastewater;

[0013] By setting the pore diameter of the diaphragm to 10 - 50 microns, the composite rotary filter membrane of the present invention can be applied to the wastewater filtration in the PCB developing section. Among them, the diaphragm is selected as a Teflon diaphragm, and the Teflon diaphragm with a precision of 10 - 50 microns can filter macromolecular substances in the developing wastewater.

[0014] Furthermore, the outer edge and the inner edge of the diaphragm are respectively attached to the side surfaces of the outer convex ring and the inner convex ring away from the mounting plate, and are respectively arranged in sealing fit with the side surfaces of the outer convex ring and the inner convex ring away from the mounting plate.

[0015] In the present invention, the diaphragm can be hermetically attached to the side surfaces of the outer convex ring and the inner convex ring away from the mounting plate through connection structures such as adhesive bonding with sealant and pressing with a pressing structure, so as to form a closed accommodation cavity with the concave groove, enabling the accommodation cavity to filter and process liquids.

[0016] Furthermore, a plurality of externally threaded mounting holes are provided on the side surface of the outer convex ring away from the mounting plate; the framework further includes an outer pressure ring, and a plurality of outer mounting holes are provided on the outer pressure ring corresponding to the threaded holes. The outer pressure ring is detachably arranged on the outer convex ring through a bolt connection structure formed by the outer mounting holes on it and the externally threaded mounting holes on the outer convex ring, and the diaphragm is clamped between the outer convex ring and the outer pressure ring.

[0017] In the present invention, the outer pressure ring can be installed on the side surface of the outer convex ring through bolts, so as to further press the diaphragm on the outer convex ring, which can increase the firmness of the connection structure between the diaphragm and the outer convex ring and the stability of the sealing structure; among them, the outer convex ring is preferably an outer pressure ring made of stainless steel.

[0018] Furthermore, a rubber sealing gasket is also clamped between the diaphragm and the outer pressure ring.

[0019] In the present invention, the outer pressure ring can press the rubber sealing gasket on the diaphragm, thereby pressing the diaphragm on the outer convex ring. At the same time, the deformation generated by the rubber sealing gasket can make the rubber sealing gasket closely fit on the diaphragm, effectively avoiding gaps in the pressing structure of the outer pressure ring on the diaphragm, and effectively improving and maintaining the sealing effect between the diaphragm and the outer convex ring.

[0020] Furthermore, a plurality of annular support rings are arranged in the concave groove, and the support rings are coaxially arranged with the mounting plate; notches are also provided on the support rings corresponding to the through holes. Among them, the notches corresponding to the same through hole are located on the same straight line passing through the through hole, forming a passage, and the passage is arranged along the radial direction of the mounting plate.

[0021] In the present invention, the support ring disposed in the recessed groove serves to support the diaphragm connected between the outer convex ring and the inner convex ring, preventing the diaphragm from collapsing relative to the recessed groove, thereby ensuring that the liquid can smoothly pass through the diaphragm and ensuring the stability of the filtering effect of the diaphragm. Among them, the aisle formed by the notch opened on the support ring is used for the passage of the liquid entering the accommodation cavity through the diaphragm, so as to ensure that the liquid will not be blocked by the support ring and is difficult to flow out from the through hole. Among them, preferably, the side surface of the support ring away from the bottom surface of the recessed groove is flush with the opening of the recessed groove.

[0022] Furthermore, the recessed groove between the outer edge and the inner edge of the two side surfaces of the mounting plate is in the shape of a circular ring coaxial with the mounting plate. Correspondingly, the outer convex ring and the inner convex ring are also in the shape of a circular ring coaxial with the mounting plate.

[0023] In the present invention, making the recessed groove, the outer convex ring and the inner convex ring in the shape of a circular ring can make the weight distribution of the mounting plate uniform, so that the mounting plate can rotate more smoothly. Among them, preferably, the aisles opened on the support ring are uniformly arranged around the axis of the mounting plate.

[0024] In addition, the present invention also provides an installation structure for the above-mentioned composite rotary filter membrane, which includes a rotating shaft, and a plurality of the mounting plates are fixedly installed on the rotating shaft, and the mounting plates are arranged coaxially with the rotating shaft; a sealing ring is further arranged between two adjacent mounting plates, the sealing ring is sleeved on the rotating shaft, and is in abutting and sealing cooperation with the diaphragm attached to the inner convex ring; a flow channel is opened in the rotating shaft, and the flow channel is communicated with the through holes on each mounting plate.

[0025] In the present invention, the rotating shaft serves as a rotation driving structure of the composite rotary filter membrane, and is used to drive the mounting plate installed thereon to rotate around the axis of the rotating shaft through its own rotation. Among them, after the mounting plate is installed on the rotating shaft, the mounting plate and the sealing ring sleeved on the rotating shaft will abut against each other tightly. At this time, the sealing ring will further press the diaphragm on the inner convex ring against the inner convex ring, improving the stability of the connection structure and the sealing structure of the diaphragm and the inner convex ring. At the same time, the presence of the sealing ring can also make a gap exist between two adjacent mounting plates, so that the liquid can conveniently enter the accommodation cavity on the support plate through the gap between two adjacent support plates, effectively improving the filtering efficiency.

[0026] The liquid filtering process of the present invention is as follows: the liquid enters the accommodation cavity on the support plate through the gap between two adjacent support plates, and then flows into the flow channel on the rotating shaft from the through hole communicating with the accommodation cavity. Among them, the flow channel on the rotating shaft can be communicated with a collection container to realize the collection of the liquid that has completed filtration.

[0027] Further, an installation ring is fixedly embedded in the inner edge of the installation plate. The outer side wall of the installation ring covers the through holes on the installation plate, and communication holes communicating with the through holes are formed in the installation ring corresponding to the through holes on the inner convex ring. The installation plate is sleeved on the rotating shaft through the installation ring thereon and installed on the rotating shaft, and the installation ring is tightly fitted with the rotating shaft. A cavity is formed in the rotating shaft along the axial direction of the rotating shaft, and the upper end or the lower end of the cavity extends out of the rotating shaft to form a flow channel. Through holes communicating with the communication holes are formed in the side wall of the rotating shaft corresponding to the communication holes, and the through holes communicate the cavity with the communication holes.

[0028] In the present invention, the installation plate is sleeved on the rotating shaft through the installation ring embedded therein, so as to be installed on the rotating shaft and realize a tight fit connection with the rotating shaft. At this time, the communication holes on the installation ring communicate the through holes and the through holes, and the liquid in the accommodating cavity can flow into the flow channel on the rotating shaft through the through holes.

[0029] Among them, preferably, grooves are formed on both the outer side wall and the inner side wall of the installation ring. At this time, the communication holes communicate with the through holes and the through holes respectively through the grooves formed on the outer side wall and the inner side wall of the installation ring, so that all the through holes on the through holes and the installation plate can be communicated with each other at the same time, and the liquid in the accommodating cavity can enter the flow channel of the rotating shaft more smoothly.

[0030] Further, the sealing ring includes a ring-shaped body. Annular installation grooves are formed on both side surfaces of the body, and sealing rings are embedded in the annular installation grooves, and the sealing rings protrude from the surface of the body.

[0031] In the present invention, when the sealing ring is clamped by two adjacent installation plates, the sealing rings on the sealing ring will abut against the diaphragm on the inner convex ring, so as to realize the mutual sealing fit between the sealing ring and the diaphragm, thereby avoiding liquid from entering the flow channel of the rotating shaft through the connection structure between the sealing ring and the installation plate.

[0032] Further, a positioning ring is fixedly arranged at the lower end of the rotating shaft, and an external thread structure is arranged at the upper end of the rotating shaft, and a threaded pressing ring is installed on the external thread structure.

[0033] In the present invention, when installing the installation plate, the installation plate and the sealing ring are alternately sleeved on the rotating shaft one by one. Finally, by pressing the threaded pressing ring on the uppermost installation plate, the installation plate and the sealing ring can be fixed on the rotating shaft, realizing the fixed installation of the installation plate and the sealing ring on the rotating shaft.

[0034] The principle and effect of the present invention will be further described below in combination with the above technical solutions and the drawings:

[0035] In the present invention, the composite rotary filter membrane needs to be installed on a rotation driving structure for use. During use, the composite rotary filter membrane is driven by the rotation driving structure to rotate. During this process, liquid can enter the accommodation cavity from the outside of the composite rotary filter membrane, and then leave the accommodation cavity through the through holes communicating with the accommodation cavity, thereby realizing the filtration of the liquid by the membrane sheet. Among them, since the composite rotary filter membrane rotates while filtering the liquid, the membrane sheet thereon will vibrate under the action of its own rotation and the impact of the liquid, thereby effectively shaking off the impurities blocked in the membrane pores of the membrane sheet, and further effectively avoiding the blockage of the membrane pores of the membrane sheet, so as to shorten the cleaning frequency of the membrane sheet and improve the production efficiency of the filtration equipment using the composite rotary filter membrane. Description of the Drawings

[0036] Figure 1 is a schematic structural diagram of the composite rotary filter membrane according to an embodiment of the present invention;

[0037] Figure 2 is a schematic structural diagram of the composite rotary filter membrane according to an embodiment of the present invention when an installation ring is installed

[0038] Figure 3 is a schematic structural diagram of the composite rotary filter membrane according to an embodiment of the present invention when the membrane sheet is hidden;

[0039] Figure 4 is a schematic cross-sectional structural diagram of the installation structure of the composite rotary filter membrane according to an embodiment of the present invention;

[0040] Figure 5 is Figure 4 a partial enlargement of Figure 1 ;

[0041] Figure 6 is Figure 4 a partial enlargement of Figure 2 ;

[0042] Figure 7 is a schematic structural diagram of the installation ring according to an embodiment of the present invention.

[0043] Description of the Reference Numerals:

[0044] 1 - Composite rotary filter membrane, 11 - Installation plate, 111 - Outer convex ring, 112 - Inner convex ring, 1121 - Through hole, 113 - Concave groove, 114 - Support ring, 115 - Aisle, 12 - Pressure ring, 2 - Membrane sheet, 3 - Installation ring, 31 - Communication hole, 32 - Groove, 4 - Rotating shaft, 41 - Flow channel, 42 - Through hole, 43 - Positioning ring, 44 - Threaded pressure ring, 5 - Sealing ring, 51 - Sealing ring, 6 - Rubber gasket. Detailed Embodiments

[0045] For the convenience of those skilled in the art to understand, the present invention will be further described in detail below in conjunction with the drawings and embodiments:

[0046] As Figure 1-7 , a composite rotary filter membrane and its installation structure, including a skeleton, the skeleton includes an annular mounting plate 11, a part between the outer edge and the inner edge of both side surfaces of the mounting plate 11 is recessed downward to form a recessed groove 113, and outer convex rings 111 and inner convex rings 112 are formed at the outer edge and the inner edge of both side surfaces of the mounting plate 11; a membrane sheet 2 is connected between the outer convex ring 111 and the inner convex ring 112 on the same side surface of the mounting plate 11, and the membrane sheet 2 is hermetically fitted with the outer convex ring 111 and the inner convex ring 112, and the recessed groove 113 between the membrane sheet 2 and the outer convex ring 111 and the inner convex ring 112 encloses to form a receiving cavity; a plurality of through holes 1121 penetrating through the inner convex ring 112 are further opened on the side wall of the inner convex ring 112 corresponding to the receiving cavity, and the through holes 1121 communicate with the receiving cavity.

[0047] In the present invention, the composite rotary filter membrane 1 needs to be installed on a rotational driving structure for use. During use, the composite rotary filter membrane 1 is driven by the rotational driving structure to rotate. During this process, liquid can enter the receiving cavity from the outside of the composite rotary filter membrane 1, and then leave the receiving cavity through the through holes 1121 communicating with the receiving cavity, so as to realize the filtration of the liquid by the membrane sheet 2. Among them, since the composite rotary filter membrane 1 will rotate while filtering the liquid, therefore, the membrane sheet 2 thereon will vibrate under the action of its own rotation and the impact of the liquid, so as to effectively shake off the impurities blocked in the membrane holes of the membrane sheet 2, and further effectively avoid the blockage of the membrane holes of the membrane sheet 2, so as to shorten the cleaning frequency of the membrane sheet 2 and improve the production efficiency of the filtration equipment using the composite rotary filter membrane 1.

[0048] In the present invention, by changing the material of the membrane sheet 2 and the aperture of the membrane holes of the membrane sheet 2, the composite rotary filter membrane 1 of the present invention can be made suitable for the filtration of different types of wastewater.

[0049] For example, by setting the aperture of the membrane holes of the membrane sheet 2 to 1 micron, the composite rotary filter membrane 1 of the present invention can be made suitable for the filtration of wastewater in the PCB degumming section. Among them, the material of the membrane sheet 2 is selected as titanium plus Teflon to improve the ability of the membrane sheet 2 to resist high temperature of the chemical solution and resist strong alkali oxidation;

[0050] By setting the aperture of the membrane holes of the membrane sheet 2 to 0.1 - 1 micron, the composite rotary filter membrane 1 of the present invention can be made suitable for the filtration of wastewater in the PCB copper plating section. Among them, the material of the membrane sheet 2 is selected as Teflon material;

[0051] By setting the pore diameter of the membrane aperture of the diaphragm 2 to 1 micron, the composite rotary filter membrane 1 of the present invention can be applied to the wastewater filtration in the PCB etching section. Among them, the material of the diaphragm 2 is selected as Teflon material;

[0052] By setting the pore diameter of the diaphragm 2 to 10 - 40 microns, the composite rotary filter membrane 1 of the present invention can be applied to the wastewater filtration in the PCB film stripping section. Among them, the material of the diaphragm 2 is selected as stainless steel. The stainless steel diaphragm 2 with a precision of 10 - 40 microns can block fine broken films and improve the quality of the film stripping solution;

[0053] By setting the pore diameter of the diaphragm 2 to 10 nanometers, the composite rotary filter membrane 1 of the present invention can be applied to the wastewater filtration in the PCB electroplating tin section. Among them, the material of the diaphragm 2 is Teflon. The Teflon diaphragm 2 with a precision of 10 nanometers can intercept divalent tin in electroplating tin;

[0054] By setting the pore diameter of the diaphragm 2 to 0.1 - 1 micron, the composite rotary filter membrane 1 of the present invention can be applied to the on - line carbon treatment section of the PCB. Among them, the material of the diaphragm 2 is Teflon. The Teflon diaphragm 2 with a precision of 0.1 - 1 micron can filter out carbon powder in the wastewater;

[0055] By setting the pore diameter of the diaphragm 2 to 10 - 50 microns, the composite rotary filter membrane 1 of the present invention can be applied to the wastewater filtration in the PCB developing section. Among them, the diaphragm 2 is selected as the Teflon diaphragm 2. The Teflon diaphragm 2 with a precision of 10 - 50 microns can filter out macromolecular substances in the developing wastewater.

[0056] In one embodiment, the outer edge and the inner edge of the diaphragm 2 are respectively attached to the side surfaces of the outer convex ring 111 and the inner convex ring 112 away from the mounting plate 11, and are respectively in sealing fit with the side surfaces of the outer convex ring 111 and the inner convex ring 112 away from the mounting plate 11.

[0057] In this embodiment, the diaphragm 2 can be hermetically attached to the side surfaces of the outer convex ring 111 and the inner convex ring 112 away from the mounting plate 11 through connection structures such as adhesive bonding with sealant and pressing with a pressing structure, so as to form a closed - state accommodation cavity with the concave groove 113, enabling the accommodation cavity to realize the filtration treatment of liquid.

[0058] In one embodiment, a plurality of externally threaded mounting holes are formed on a side surface of the outwardly convex ring 111 away from the mounting plate 11; the framework further includes an external pressing ring 12, and a plurality of external mounting holes are formed on the external pressing ring 12 corresponding to the threaded holes. The external pressing ring 12 is detachably disposed on the outwardly convex ring 111 through a bolt connection structure formed by the external mounting holes on it and the externally threaded mounting holes on the outwardly convex ring 111, and the diaphragm 2 is clamped between the outwardly convex ring 111 and the external pressing ring 12.

[0059] In this embodiment, the external pressing ring 12 can be mounted on the side surface of the outwardly convex ring 111 through bolts, so that the diaphragm 2 can be further pressed on the outwardly convex ring 111, which can increase the firmness of the connection structure between the diaphragm 2 and the outwardly convex ring 111 and the stability of the sealing structure; among them, the outwardly convex ring 111 is preferably made of stainless steel as the external pressing ring 12. Among them, the diaphragm 2 needs to be provided with openings corresponding to the threaded holes for the bolts to pass through the diaphragm 2.

[0060] In one embodiment, a rubber sealing gasket 6 is further clamped between the diaphragm 2 and the external pressing ring 12.

[0061] In this embodiment, the external pressing ring 12 can press the rubber sealing gasket 6 on the diaphragm 2, thereby pressing the diaphragm 2 on the outwardly convex ring 111. At the same time, the deformation generated by the rubber sealing gasket 6 can make the rubber sealing gasket 6 closely fit on the diaphragm 2, so as to effectively avoid gaps in the pressing structure of the external pressing ring 12 on the diaphragm 2, and can effectively improve and maintain the sealing effect between the diaphragm 2 and the outwardly convex ring 111.

[0062] In one embodiment, a plurality of annular support rings 114 are arranged in the recessed groove 113, and the support rings 114 are coaxially arranged with the mounting plate 11; the support rings 114 are further provided with notches corresponding to the through holes 1121. Among them, the notches corresponding to the same through hole 1121 are located on the same straight line passing through the through hole 1121 to form a passage 115, and the passage 115 is arranged along the radial direction of the mounting plate 11.

[0063] In this embodiment, the support rings 114 arranged in the recessed groove 113 are used to support the diaphragm 2 connected between the outwardly convex ring 111 and the inwardly convex ring 112, preventing the diaphragm 2 from collapsing relative to the recessed groove 113, so as to ensure that the liquid can smoothly pass through the diaphragm 2 and ensure the stability of the filtering effect of the diaphragm 2; among them, the passage 115 formed by the notches opened on the support rings 114 is used for the passage of the liquid entering the accommodation cavity through the diaphragm 2, so as to ensure that the liquid will not be blocked by the support rings 114 and is difficult to flow out from the through holes 1121. Among them, preferably, the side surface of the support ring 114 away from the bottom surface of the recessed groove 113 is flush with the opening of the recessed groove 113.

[0064] In one embodiment, the concave groove 113 between the outer edge and the inner edge on both side surfaces of the mounting plate 11 is in the shape of an annular ring coaxially arranged with the mounting plate 11. Correspondingly, the outer convex ring 111 and the inner convex ring 112 are also in the shape of an annular ring coaxially arranged with the mounting plate 11.

[0065] In this embodiment, making the concave groove 113, the outer convex ring 111 and the inner convex ring 112 in the shape of an annular ring can make the weight distribution of the mounting plate 11 uniform, so that the mounting plate 11 can rotate more smoothly. Among them, preferably, the aisles 115 formed in the support ring 114 are evenly arranged around the axis of the mounting plate 11.

[0066] In addition, the present invention also provides an installation structure for the above-mentioned composite rotary filter membrane 1, which includes a rotating shaft 4. A plurality of the mounting plates 11 are fixedly installed on the rotating shaft 4, and the mounting plates 11 are coaxially arranged with the rotating shaft 4. A sealing ring 5 is further arranged between two adjacent mounting plates 11. The sealing ring 5 is sleeved on the rotating shaft 4 and is in sealing contact with the membrane 2 attached to the inner convex ring 112. A flow channel 41 is formed in the rotating shaft 4, and the flow channel 41 is communicated with the through holes 1121 on each mounting plate 11.

[0067] In the present invention, the rotating shaft 4 serves as a rotation driving structure for the composite rotary filter membrane 1, and is used to drive the mounting plate 11 mounted thereon to rotate around the axis of the rotating shaft 4 by its own rotation. Among them, after the mounting plate 11 is installed on the rotating shaft 4, the mounting plate 11 and the sealing ring 5 sleeved on the rotating shaft 4 will be pressed against each other. At this time, the sealing ring 5 will further press the membrane 2 on the inner convex ring 112 against the inner convex ring 112, improving the stability of the connection structure and the sealing structure between the membrane 2 and the inner convex ring 112. At the same time, the presence of the sealing ring 5 can also make a gap exist between two adjacent mounting plates 11, so that liquid can conveniently enter the accommodation cavity on the support plate through the gap between two adjacent support plates, effectively improving the filtration efficiency.

[0068] The liquid filtration process of the present invention is as follows: The liquid enters the accommodation cavity on the support plate through the gap between two adjacent support plates, and then flows into the flow channel 41 on the rotating shaft 4 through the through holes 1121 communicating with the accommodation cavity. Among them, the flow channel 41 on the rotating shaft 4 can be communicated with a collection container to realize the collection of the liquid that has completed filtration.

[0069] In one embodiment, an installation ring 3 is fixedly embedded in the inner edge of the installation plate 11. The outer sidewall of the installation ring 3 covers the through hole 1121 on the installation plate 11, and a communication hole 31 communicating with the through hole 1121 is formed in the installation ring 3 corresponding to the through hole 1121 on the inner convex ring 112. The installation plate 11 is sleeved on the rotating shaft 4 through the installation ring 3 thereon and is installed on the rotating shaft 4, and the installation ring 3 is tightly fitted with the rotating shaft 4. A cavity is formed in the rotating shaft 4 along the axial direction of the rotating shaft 4, and the upper end or the lower end of the cavity extends out of the rotating shaft 4 to form a flow channel 41. A through hole 42 communicating with the communication hole 31 is formed in the sidewall of the rotating shaft 4 corresponding to the communication hole 31, and the through hole 42 communicates the cavity with the communication hole 31.

[0070] In this embodiment, the installation plate 11 is sleeved on the rotating shaft 4 through the installation ring 3 embedded therein, so as to be installed on the rotating shaft 4, realizing a tight fit connection with the rotating shaft 4. At this time, the communication hole 31 on the installation ring 3 communicates the through hole 1121 and the through hole 42, and the liquid in the accommodating cavity can flow into the flow channel 41 on the rotating shaft 4 through the through hole 42.

[0071] Preferably, grooves 32 are formed on both the outer sidewall and the inner sidewall of the installation ring 3. At this time, the communication hole 31 communicates with the through hole 42 and the through hole 1121 respectively through the grooves 32 formed on the outer sidewall and the inner sidewall of the installation ring 3, so that all the through holes 1121 on the through hole 42 and the installation plate 11 can be communicated with each other simultaneously, and the liquid in the accommodating cavity can enter the flow channel 41 of the rotating shaft 4 more smoothly.

[0072] Furthermore, the sealing ring 5 includes an annular ring body. Annular installation grooves are formed on both side surfaces of the ring body, and sealing rings 51 are embedded in the annular installation grooves, and the sealing rings 51 protrude from the surface of the ring body.

[0073] In the present invention, when the sealing ring 5 is clamped by two adjacent installation plates 11, the sealing rings 51 on the sealing ring 5 will abut against the diaphragm 2 on the inner convex ring 112, so as to realize the mutual sealing cooperation between the sealing ring 5 and the diaphragm 2, thereby avoiding the liquid from entering the flow channel 41 of the rotating shaft 4 through the connection structure between the sealing ring 5 and the installation plate 11.

[0074] Furthermore, a positioning ring 43 is fixedly arranged at the lower end of the rotating shaft 4, and an external thread structure is arranged at the upper end of the rotating shaft 4, and a threaded compression ring 44 is installed on the external thread structure.

[0075] In the present invention, when the mounting plate 11 is installed, the mounting plate 11 and the sealing ring 5 are alternately sleeved on the rotating shaft 4 one by one. Finally, by tightening the threaded compression ring 44 on the uppermost mounting plate 11, the mounting plate 11 and the sealing ring 5 can be fixed on the rotating shaft 4, and the mounting plate 11 and the sealing ring 5 are pressed against each other, realizing the fixed installation of the mounting plate 11 and the sealing ring 5 on the rotating shaft 4.

[0076] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. An installation structure of a composite rotary filter membrane, characterized in that It includes a framework, and the framework includes an annular mounting plate. The part between the outer edge and the inner edge of both side surfaces of the mounting plate is recessed downward to form a recessed groove, and an outer convex ring and an inner convex ring are formed at the outer edge and the inner edge of both side surfaces of the mounting plate; a diaphragm is connected between the outer convex ring and the inner convex ring on the same side surface of the mounting plate, and the diaphragm is hermetically fitted with the outer convex ring and the inner convex ring. The recessed groove between the diaphragm and the outer convex ring and the inner convex ring encloses a receiving cavity; a plurality of through holes penetrating the inner convex ring are further formed on the side wall of the inner convex ring corresponding to the receiving cavity, and the through holes are communicated with the receiving cavity; the outer edge and the inner edge of the diaphragm are respectively attached to the side surfaces of the outer convex ring and the inner convex ring away from the mounting plate, and are respectively hermetically fitted with the side surfaces of the outer convex ring and the inner convex ring away from the mounting plate; a plurality of externally threaded mounting holes are formed on the side surface of the outer convex ring away from the mounting plate; the framework further includes an outer pressing ring, and a plurality of outer mounting holes are formed on the outer pressing ring corresponding to the externally threaded mounting holes. The outer pressing ring is detachably arranged on the outer convex ring through a bolt connection structure formed by the outer mounting holes on it and the externally threaded mounting holes on the outer convex ring, and the diaphragm is clamped between the outer convex ring and the outer pressing ring; a plurality of annular support rings are arranged in the recessed groove, and the support rings are coaxially arranged with the mounting plate; notches are further formed on the support ring corresponding to the through holes, wherein the notches corresponding to the same through hole are located on the same straight line passing through the through hole to form a passage, and the passage is arranged along the radial direction of the mounting plate; A plurality of the mounting plates are fixedly mounted on the same rotating shaft, and the mounting plate is coaxially arranged with the rotating shaft; a sealing ring is further arranged between two adjacent mounting plates, and the sealing ring is sleeved on the rotating shaft and abuts against and is hermetically fitted with the diaphragm attached to the inner convex ring; a flow channel is formed in the rotating shaft, and the flow channel is communicated with the through holes on each mounting plate.

2. The installation structure of a composite rotary filter membrane according to claim 1, characterized in that A rubber gasket is further clamped between the diaphragm and the outer pressing ring.

3. The installation structure of a composite rotary filtration membrane according to claim 1, characterized in that, The recessed groove between the outer edge and the inner edge of both side surfaces of the mounting plate is an annular shape coaxially arranged with the mounting plate. Correspondingly, the outer convex ring and the inner convex ring are also annular shapes coaxially arranged with the mounting plate.

4. The installation structure of a composite rotary filter membrane according to claim 1, characterized in that An installation ring is fixedly embedded on the inner edge of the mounting plate, and the outer side wall of the installation ring covers the through holes on the mounting plate, and communication holes communicating with the through holes are formed on the installation ring corresponding to the through holes on the inner convex ring; the mounting plate is sleeved on the rotating shaft through the installation ring on it and is mounted on the rotating shaft, and the installation ring is tightly fitted with the rotating shaft. A cavity is formed in the rotating shaft along the axial direction of the rotating shaft, and the upper end or the lower end of the cavity extends out of the rotating shaft to form a flow channel. A through hole communicating with the communication hole is formed on the side wall of the rotating shaft corresponding to the communication hole, and the through hole communicates the cavity with the communication hole.

5. The installation structure of a composite rotary filter membrane according to claim 4, characterized in that, The sealing ring includes an annular body. Annular mounting grooves are formed on both side surfaces of the annular body. A sealing ring is embedded in the annular mounting groove, and the sealing ring protrudes from the surface of the annular body.

6. The installation structure of a composite rotary filter membrane according to claim 4 or 5, characterized in that A positioning ring is fixedly arranged at the lower end of the rotating shaft. An external thread structure is arranged at the upper end of the rotating shaft, and a threaded pressing ring is mounted on the external thread structure.

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