Rotary cross-flow organic membrane filter device

Abstract

The invention discloses a rotary cross-flow organic membrane filter device, and aims to solve the problems that an existing rotary cross-flow ceramic membrane filter is limited in filtering area and high in cost, and a disc is easy to break. The device comprises a main shaft unit, a transmission unit, a power unit, a shell unit and a rack, and all the units work cooperatively to achieve efficient filtering. Wherein the main shaft unit adopts an organic membrane disc to replace a traditional ceramic membrane disc, the organic membrane disc is formed by bonding a flow guide disc, an organic membrane and a screen through epoxy glue, and a self-clamping sealing ring is arranged on the outer circle of the organic membrane disc; the spindle unit can enter and exit along a guide rail in the shell unit through rollers, and maintenance is convenient. The power unit drives the main shaft unit to rotate through the transmission unit, and cross-flow filtration is achieved. Through the characteristics of the organic membrane material, the filtering area is increased, the fragmentation risk is reduced, meanwhile, the structural design is optimized, the sealing performance and operation and maintenance convenience are improved, and the filter is suitable for large-flow industrial filtering scenes and has the advantages of being low in cost and high in stability.

Description

TECHNICAL FIELD

[0001] The present application relates to a rotating cross-flow organic membrane filter device. BACKGROUND

[0002] In the field of industrial filtration, rotating cross-flow filtration technology is widely used in chemical industry, environmental protection, food industry and other industries due to its strong anti-pollution ability and high filtration efficiency. Among them, the rotating cross-flow ceramic membrane filter is a typical equipment of this technology, which forms a cross-flow effect through the rotation of the membrane assembly, reduces the deposition of pollutants on the membrane surface, and maintains stable filtration performance.

[0003] However, the existing rotating cross-flow ceramic membrane filter is limited by the inherent properties of ceramic materials, and has the following defects:

[0004] 1. Limited filtration area and high cost: Ceramic materials have high hardness but are brittle, and are prone to cracking due to stress concentration when processing large-size discs, so the size of the filtration disc cannot be further increased, and the filtration area of a single device is limited. In actual engineering applications, in order to meet the large flow filtration requirements, multiple devices need to be connected in parallel, which not only increases the equipment purchase cost, but also expands the floor area and increases the overall cost of system installation and operation.

[0005] 2. Disc is prone to cracking and has poor stability: Ceramic materials have low toughness, and are prone to cracking during transportation, installation and operation due to vibration, impact or temperature changes. Disc cracking not only causes filtration to be interrupted, but also may cause secondary pollution by mixing the fragments into the filtrate, increasing the maintenance frequency and downtime of the equipment, and seriously affecting the production continuity and stability.

[0006] In view of the above problems, it is urgent to develop a new type of rotating cross-flow filtration device to overcome the inherent defects of ceramic membrane materials and improve the filtration performance, stability and economy of the equipment. SUMMARY

[0007] The present application aims to provide a rotating cross-flow organic membrane filter device to solve the problems of low filtration efficiency, inconvenient maintenance and large material waste of existing filtration devices, and to provide a rotating cross-flow organic membrane filter device.

[0008] A rotating cross-flow organic membrane filter device, comprising a main shaft unit, a transmission unit, a power unit, an outer shell unit and a rack; the main shaft unit, the transmission unit, the power unit and the outer shell unit are fixed on the rack, the transmission unit is connected with the main shaft unit and the power unit respectively, and the main shaft unit is installed in the outer shell unit;

[0009] The main shaft unit comprises an organic membrane disc, a connector, a sealing gasket, an end face connector, a sealing cover, a shaft fixing ring, a clasp spring, a bearing, a hexagonal nut, a mounting side plate, a roller, a flat gasket, a screw rod, a machine seal pressing plate, a long shaft flange, a cylinder head screw, a first machine seal, a long shaft and a pull rod.

[0010] A plurality of organic membrane discs are mounted on the middle section of the long shaft, and a connector is arranged between two adjacent organic membrane sheets. The middle of the organic membrane disc is a flow guide disc provided with a flow guide channel, and the flow guide disc and the organic membrane sheet are bonded by epoxy adhesive. A screen is arranged between the flow guide disc and the epoxy adhesive. A self-clamping sealing ring is arranged at the outer circle of the organic membrane disc.

[0011] Further, the first ceramic bearing is mounted in the inner groove of the mounting side plate, and the first ceramic bearing is fixed on the mounting side plate by the bearing pressing plate and the hexagonal screw. The middle part of the pull rod is square, the top of the roller is connected with the middle part of the pull rod, and the end part of the pull rod is connected with the nut through the through hole at the bottom of the side plate. The bearing pressing plate and the hexagonal screw are fastened in the inner groove of the mounting side plate, which can ensure the radial positioning accuracy of the long shaft during high-speed rotation, greatly reduce the vibration and noise of the shaft system during operation, and reduce the energy loss caused by friction, thereby improving the operation efficiency of the equipment.

[0012] Further, the first machine seal is mounted on the left side of the long shaft, and the static ring of the first machine seal is fixed on the left blind plate of the cylinder body by the machine seal pressing plate and the hexagonal screw. The long shaft flange is fixed on the left end of the long shaft. As a key sealing component, the static ring of the first machine seal is rigidly fixed with the left blind plate of the cylinder body, and the dynamic ring rotates synchronously with the long shaft. Dynamic sealing is achieved through the precise fitting of the dynamic and static rings, which can effectively block the leakage of filtrate from the gap between the long shaft and the left blind plate of the cylinder body, prevent external air or impurities from entering the filtration cavity and polluting the filtrate, and ensure the cleanliness of the filtration environment and the stability of the system pressure.

[0013] Further, a plurality of organic membrane discs and connectors are attached and mounted on the middle section of the long shaft, and a sealing gasket is arranged between the organic membrane disc and the connector. The middle section of the long shaft is provided with a radial hole, and the corresponding position of the connector is provided with a matching radial hole. The two radial holes are designed to collect filtrate. The structure of the alternately attached organic membrane disc and connector, combined with the sealing gasket therebetween, can form multiple seals, completely block the lateral leakage of filtrate between adjacent components, and ensure that all filtrate penetrating the organic membrane sheet can enter the pre-designed collection channel, thereby improving the recovery rate of filtrate.

[0014] Further, two end face connectors are installed on the outer side of the organic membrane disc on the leftmost and rightmost sides; the middle section of the long shaft is square, and the organic membrane disc, the connector, and the inner hole of the end face connector are square; the end face connectors on both sides can limit the axial position of the whole membrane group, prevent the organic membrane disc and the connector from moving axially during rotation or vibration, and block the leakage of filtrate at the edge of the membrane group together with the sealing structure, thereby ensuring the sealing of the filtration cavity. At the same time, the square cooperation can disperse the stress during rotation, improve the torsional strength of the whole membrane group, adapt to high-speed operation conditions, and ensure the uniformity and stability of the cross-flow effect.

[0015] The center of the organic membrane disc, the connector, and the end face connector is provided with a waist hole in the circumferential direction, and a lead screw passes through the waist hole, and the two ends of the lead screw are locked with the organic membrane disc, the connector, and the end face connector through flat washers and hexagonal nuts.

[0016] The two sealing covers are connected with the end face connectors through hexagonal screws, and sealing rings are arranged between the sealing covers and the end face connectors and the long shaft; the two shaft fixing rings are installed on the outer side of the two sealing covers.

[0017] Further, the transmission unit includes a plurality of sealing rings, a cover plate, an outer snap spring, a ceramic bearing, a short shaft, a bearing seat, an inner snap spring, a static ring pressing plate, a second mechanical seal, a large pulley, a flat key, a snap spring, a short shaft flange, a cylindrical head screw, and a transmission belt; the ceramic bearing is installed in the groove at both ends of the bearing seat, and the ceramic bearing is fixed in the bearing seat by the inner snap spring; the short shaft passes through the above-mentioned bearing from right to left, and is fixed with the ceramic bearing at the left side through the outer snap spring; the ceramic bearing is fixed in the bearing seat by the hexagonal screw and the cover plate, and a sealing ring is arranged between the cover plate and the bearing seat; the static ring of the second mechanical seal is fixed on the bearing seat by the static ring pressing plate and the hexagonal screw, and the dynamic ring of the second mechanical seal is locked with the short shaft; the large pulley is fixed on the short shaft by two snap springs, and a flat key is arranged between the large pulley and the short shaft; the short shaft right side is provided with a blind hole, and a radial hole penetrating the blind hole is arranged in the middle part; the bearing seat is provided with holes upward and downward in the middle part; the short shaft flange is fixed on the right side of the short shaft by the cylindrical head screw, a sealing ring is arranged between the short shaft flange and the short shaft, and the short shaft flange is connected with the long shaft flange by the hexagonal screw.

[0018] Further, the power unit includes a motor and a small pulley, and the small pulley and the large pulley of the transmission unit are connected through a transmission belt. The motor as the core power source can adjust the output speed through frequency conversion to adapt to different filtering working conditions; the small pulley and the large pulley of the transmission unit form a flexible transmission structure through the transmission belt, which can not only stably transmit power, but also buffer mechanical impact during operation and reduce the damage of vibration to equipment components.

[0019] Further, the shell unit comprises a cylinder left blind plate, a cylinder, a cylinder right flange, a cylinder right blind plate, a sealing cap and a guide rail; the cylinder left blind plate and the cylinder right flange are welded on both sides of the cylinder, the cylinder right blind plate is connected with the cylinder right flange through a hexagon nut and a hexagon screw, and a sealing ring is arranged between the cylinder right blind plate and the cylinder right flange; the cylinder left blind plate and the cylinder right blind plate are provided with holes in the bottom, the mounting side plate in the main shaft unit is provided with a screw rod, the screw rod is passed out of the hole, and the main shaft unit is connected with the shell unit through locking of the nut; the guide rail is welded in the cylinder, and the roller of the main shaft unit moves along the guide rail. Wherein the cylinder serves as the main body of the filtering cavity, provides a closed space for the filtering reaction of the material, and the inner wall is subjected to smoothing treatment to reduce material retention and fouling; the cylinder left blind plate and the cylinder right flange are fixed on both sides of the cylinder through welding to form a rigid support structure, and the system can withstand a certain pressure in the filtering process.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] 1. Increase the filtering area and economy: use organic membrane disc, the material toughness allows larger size design, increase the filtering area of single equipment, reduce the number of equipment, reduce the engineering cost, and the toughness of organic material is better than that of ceramic, reduces the risk of fragmentation in transportation, installation and operation of disc piece, prolongs the service life, and improves the operation stability.

[0022] 2. Stable torque transmission: the square matching structure of the long shaft and the membrane disc and the connector directly transmits the torque, avoids slipping, and ensures efficient power transmission.

[0023] 3. High-efficiency separation, low material loss: the filtrate is gathered to the middle through the special flow guide structure on the organic membrane piece, then passes through the cooperation between the radial hole between the connector and the long shaft to form the only filtrate outlet, then blocks the side flow through the self-clamping sealing ring, and forces the filtrate to flow to the connector through the flow guide disc channel. Different sealing designs are adopted at multiple positions to block the filtrate leakage path and reduce material loss.

[0024] 4. Convenient maintenance: the main shaft unit enters and exits the shell unit through the roller along the guide rail, which is convenient for membrane disc replacement and part maintenance, shortens the downtime, and the backflush interface is arranged on the bearing seat to restore the membrane performance online, prolong the continuous operation cycle, and the screw rod locking, flange connection and other designs ensure that the parts are assembled tightly, resist operation vibration, and improve the overall reliability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole structure schematic diagram of a rotary cross-flow organic membrane filtering device;

[0026] Figure 2 It is a main shaft unit structure schematic diagram of a rotary cross-flow organic membrane filtering device;

[0027] Figure 3 Figure 1 is a schematic diagram of the organic membrane disc structure in the rotating cross-flow organic membrane filtration device;

[0028] Figure 4 Figure 2 is a schematic diagram of the transmission unit structure in the rotating cross-flow organic membrane filtration device;

[0029] Figure 5 Figure 3 is a schematic diagram of the power unit structure in the rotating cross-flow organic membrane filtration device;

[0030] Figure 6 Figure 4 is a schematic diagram of the shell unit structure in the rotating cross-flow organic membrane filtration device;

[0031] Figure 1 is a schematic diagram of the organic membrane disc structure in the rotating cross-flow organic membrane filtration device; DETAILED DESCRIPTION

[0032] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0033] Example 1: Figure 1 As shown, a rotary cross-flow organic membrane filter device is composed of a main shaft unit 1, a transmission unit 2, a power unit 3, a shell unit 4 and a frame 5. Each unit is fixed to the frame 5 by screws and nuts to achieve the cross-flow filtration function in collaboration.

[0034] like Figure 2 As shown, the spindle unit 1 is the core component for achieving filtration, including an organic membrane disc 101, a connector 102, a sealing gasket 103, an end face connector 104, a first hexagonal screw 105, a first sealing ring 106, a sealing cover 107, a shaft fixing ring 108, a second sealing ring 109, a first retaining ring 110, a first ceramic bearing 111, a bearing pressure plate 113, a second hexagonal screw 112, a first hexagonal nut 114, a mounting side plate 115, a roller 116, a flat washer 117, a second hexagonal nut 118, a screw 119, a third hexagonal screw 120, a mechanical seal pressure plate 121, a long shaft flange 122, a first cylindrical head screw 123, a third sealing ring 124, a fourth sealing ring 125, a first mechanical seal 126, a long shaft 127 and a pull rod 128.

[0035] The long shaft 127 is a core support member, and the middle section is set to be square for mounting the organic membrane disk 101 and the connector 102; the middle section of the long shaft 127 is provided with radial holes corresponding to the radial holes of the connector 102 for collecting filtrate.

[0036] Several organic membrane disks 101 and connectors 102 are alternately installed in the middle section of the long axis 127, and a sealing gasket 103 is provided between the two to prevent leakage of the filtrate; end face connectors 104 are installed on the outer side of the leftmost and rightmost organic membrane disks 101, and the inner holes of the organic membrane disk 101, connector 102, and end face connector 104 are all square, which cooperate with the square section of the long axis 127 to transmit torque and avoid slippage.

[0037] The organic membrane disc 101, the connector 102 and the end face connector 104 are evenly distributed with waist holes in their centers. The screw rod 119 passes through the waist holes and is locked from both ends by the flat washer 117 and the second hexagonal nut 118, so that the sealing gasket 103 is in a compressed state, avoiding leakage while ensuring that the components are firmly connected.

[0038] Two sealing caps 107 are connected with the end face connector 104 through the first hexagonal screw 105, and the first sealing ring 106 is arranged between the sealing cap 107 and the end face connector 104, which is axial sealing, preventing sewage from mixing into the filtrate side from the gap between the sealing cap 107 and the end face connector 104. The second sealing ring 109 is arranged between the sealing cap 107 and the long shaft 127, which is radial sealing, preventing sewage from mixing into the filtrate side from the gap between the long shaft 127 and the sealing cap 107; the shaft fixing ring 108 is mounted on the outside of the left and right sealing caps 107, preventing the whole from moving left and right.

[0039] The installation side plate 115 is a two-side supporting piece, the first ceramic bearing 111 is mounted in the inner side groove of the installation side plate 115 and is fixed through the bearing pressing plate 113 and the second hexagonal screw 112; the two pull rods 128 are in the shape of studs, and after being passed out from the holes in the bottom of the installation side plate 115, the two installation side plates 115 are fixed as a whole through the first hexagonal nut 114; the through holes are arranged on the two sides of the pull rod 128 close to the installation side plate, the studs on the top of the roller 116 are passed through the through holes and are fixed on the pull rod 128 through the nut, so that the main shaft unit 1 can slide along the guide rail 411 of the shell unit 4.

[0040] The first mechanical seal 126 is mounted on the left side of the long shaft 127, and the static ring of the first mechanical seal 126 is fixed on the left blind plate 401 of the cylinder through the mechanical seal pressing plate 121 and the third hexagonal screw 120; the long shaft flange 122 is fixed on the left end of the long shaft 127 through the first cylindrical head screw 123, and the fourth sealing ring 125 is arranged between the long shaft flange 122 and the long shaft 127, so as to ensure the sealing of the long shaft 127 and the external structure.

[0041] As shown in Figure 3 The organic membrane disc 101 is a component for directly realizing filtration, which is composed of a flow guide disc 1011, a screen 1012, an organic membrane 1014 and an outer hoop 1015. The flow guide disc 1011 is a core support plate, and special flow guide channels are arranged on both sides of the flow guide disc 1011 to collect filtrate. The organic membrane 1014 is adhered to the flow guide disc 1011 through the epoxy glue 1013 coated on the outer circle and inner hole of the organic membrane 1014. The steel screen 1012 is arranged between the organic membrane 1014 and the flow guide disc 1011 to prevent the organic membrane 1014 from collapsing when a positive filtration pressure is applied to the surface of the organic membrane 1014 during system operation. The outer hoop 1015 is arranged on the outer circle of the organic membrane disc 101, and the component has a certain rigidity and a U-shaped cross section. The outer hoop 1015 is adhered to the outside of the membrane disc through epoxy glue, which plays a role in further strengthening and preventing the outer circle of the organic membrane 1014 from being gradually roughened and falling off due to rotation and friction with sewage during long-term operation.

[0042] As shown in Figure 4As shown, the transmission unit 2 is used to transmit power, including a fourth hexagonal screw 201, a fifth sealing ring 202, a cover plate 203, an outer snap spring 204, a second ceramic bearing 205, a short shaft 206, a bearing seat 207, a third ceramic bearing 208, an inner snap spring 209, a static ring pressing plate 210, a fifth hexagonal screw 211, a second mechanical seal 212, a large pulley 213, a flat key 214, a second snap spring 215, a short shaft flange 216, a sixth sealing ring 217, a second cylindrical head screw 218, a sixth hexagonal screw 219, and a transmission belt 220.

[0043] The bearing seat 207 is a support member of the transmission unit 2, and the second ceramic bearing 205 and the third ceramic bearing 208 are respectively installed in the grooves at both ends of the bearing seat 207, and the third ceramic bearing 208 is fixed in the bearing seat 207 by the inner snap spring 209; the short shaft 206 passes through the two bearings from right to left, and the left side is fixed with the second ceramic bearing 205 by the outer snap spring 204, which ensures the stable rotation of the short shaft 206.

[0044] The second ceramic bearing 205 is fixed in the bearing seat 207 by the fourth hexagonal screw 201, and the fifth sealing ring 202 is arranged between the cover plate 203 and the bearing seat 207 to prevent the filtrate from leaking from the gap between the cover plate 203 and the bearing seat 207.

[0045] The static ring of the second mechanical seal 212 is fixed on the bearing seat 207 by the static ring pressing plate 210 and the fifth hexagonal screw 211, and the dynamic ring is locked with the short shaft 206 to realize sealing when the short shaft 206 rotates.

[0046] The large pulley 213 is fixed on the short shaft 206 by two second snap springs 215, and a flat key 214 is arranged therebetween to transmit torque; a blind hole is arranged on the right side of the short shaft 206, and a radial hole penetrating the blind hole is arranged in the middle for discharging filtrate; holes are arranged on the upper and lower parts of the middle part of the bearing seat 207 for discharging filtrate and connecting backflushing medium, respectively.

[0047] The short shaft flange 216 is fixed on the right side of the short shaft 206 by the second cylindrical head screw 218, and the sixth sealing ring 217 is arranged therebetween; the short shaft flange 216 is connected with the long shaft flange 122 by the sixth hexagonal screw 219 to realize power transmission between the transmission unit 2 and the main shaft unit 1.

[0048] The specific working process is as follows:

[0049] S1, power transmission: the motor 301 is started to drive the small pulley 302 to rotate, which drives the large pulley 213 of the transmission unit 2 to rotate through the transmission belt 220; the large pulley 213 drives the short shaft 206 to rotate through the flat key 214, and the short shaft 206 transmits power to the long shaft 127 through the connection between the short shaft flange 216 and the long shaft flange 122, so that the long shaft 127 and the organic membrane disc 101 rotate synchronously.

[0050] S2, filtration process: the material to be filtered enters the cylinder 402 of the shell unit 4, the organic membrane disc 101 rotates to form a cross-flow effect, the material passes through the organic membrane sheet 1014 under pressure, the filtrate penetrates the membrane sheet into the inside of the organic membrane disc 101, and the retentate is carried out of the cylinder 402 by cross-flow.

[0051] S3, filtrate collection and discharge: the filtrate penetrating the organic membrane sheet 1014 is guided through the special channel of the flow guide disc 101, flows to the radial hole of the connector 102, and then enters the inside of the long shaft 127 through the corresponding radial hole of the middle section of the long shaft 127; the filtrate flows to the left along the long shaft 127, enters the blind hole of the short shaft 206 through the connecting channel of the long shaft flange 122 and the short shaft flange 216, flows into the bearing seat 207 through the radial hole in the middle of the short shaft 206, and finally is discharged through the lower hole in the middle of the bearing seat 207.

[0052] S4, backflush operation: when the membrane flux decreases, the backflush medium is connected through the upper hole in the middle of the bearing seat 207, the backflush medium reversely flushes the organic membrane sheet 1014 along the radial hole, the blind hole of the short shaft 206 and the channel of the long shaft 127, and the membrane performance is restored.

[0053] S5, maintenance operation: loosen the nut fixing the main shaft unit 1 and the shell unit 4, the main shaft unit 1 can slide out of the cylinder 402 through the roller 116 along the guide rail 411, which is convenient for replacing the organic membrane disc 101 or overhauling the internal components.

[0054] Through the above structural design and working process, the device realizes efficient and stable rotary cross-flow filtration, has the advantages of large filtration area, strong anti-pollution ability, convenient maintenance, etc.

[0055] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A rotating cross-flow organic membrane filter device, characterized in that: The invention comprises a main shaft unit (1), a transmission unit (2), a power unit (3), a housing unit (4) and a frame (5); the main shaft unit (1), the transmission unit (2), the power unit (3) and the housing unit (4) are all fixed on the frame (5); the transmission unit (2) is connected to the main shaft unit (1) and the power unit (3) respectively; and the main shaft unit (1) is installed in the housing unit (4); The spindle unit (1) includes an organic membrane disk (101), a connector (102), a sealing gasket (103), an end connector (104), a sealing cover (107), a shaft fixing ring (108), a retaining ring (110), a bearing, a hexagonal nut, a mounting side plate (115), a roller (116), a flat washer (117), a screw (119), a mechanical seal pressure plate (121), a long shaft flange (122), a cylindrical head screw, a first mechanical seal (126), a long shaft (127) and a pull rod (128); A plurality of organic membrane discs (101) are installed in the middle section of the long axis (127), and a connector (102) is provided between two adjacent organic membrane sheets (101). The middle of the organic membrane disc (101) is a guide disc (1011) provided with a guide channel. The guide disc (1011) and the organic membrane sheet (1014) are bonded together by epoxy glue (1013). A screen (1012) is provided between the guide disc (1011) and the epoxy glue (1013), and a self-clamping sealing ring (1015) is provided on the outer circle of the organic membrane disc (101).

2. A rotating cross-flow organic membrane filter device according to claim 1, characterized in that: The first ceramic bearing (111) is installed in the inner groove of the mounting side plate (115), and the first ceramic bearing (111) is fixed to the mounting side plate (115) through the bearing pressure plate (113) and the hexagonal screw; the middle part of the pull rod (128) is square, the top of the roller (116) is connected to the middle part of the pull rod (128), and the end of the pull rod (128) passes through the through hole at the bottom of the side plate (115) and is connected to the nut.

3. The rotating cross-flow organic membrane filter device according to claim 2, characterized in that: The first mechanical seal (126) is installed on the left side of the long shaft (127), the static ring of the first mechanical seal (126) is fixed to the left blind plate (401) of the cylinder through the mechanical seal pressure plate (121) and the hexagonal screw, and the long shaft flange (122) is fixed to the left end of the long shaft (127).

4. The rotating cross-flow organic membrane filter device according to claim 2, characterized in that: A plurality of organic membrane discs (101) and connectors (102) are fitted and installed in the middle section of the long shaft (127), and a sealing gasket (103) is provided between the organic membrane discs (101) and the connector (102); the middle section of the long shaft (127) is provided with radial holes, and the corresponding positions of the connector (102) are provided with matching radial holes, and the corresponding design of the two radial holes is used to collect filtrate.

5. A rotating cross-flow organic membrane filter device according to claim 3 or 4, characterized in that: Two end face connectors (104) are installed on the outside of the leftmost and rightmost organic membrane disks (101); the middle section of the long axis (127) is square, and the inner holes of the organic membrane disk (101), the connector (102), and the end face connector (104) are square; A waist hole is provided at the center of the organic membrane disk, the connector and the end face connector along the circumferential direction, and the screw rod (119) passes through the waist hole. The two ends of the screw rod (119) are locked with the organic membrane disk, the connector and the end face connector through flat washers (117) and hexagonal nuts; The two sealing covers (107) are connected to the end face connector (104) by hexagonal screws, and a sealing ring is provided between the sealing cover, the end face connector and the long shaft; and two shaft fixing rings (108) are installed on the outside of the two sealing covers (107).

6. The rotating cross-flow organic membrane filter device according to claim 5, characterized in that: The transmission unit (2) includes a plurality of sealing rings, a cover plate (203), an external retaining ring (204), a ceramic bearing, a short shaft (206), a bearing seat (207), an internal retaining ring (209), a static ring pressure plate (210), a second mechanical seal (212), a large pulley (213), a flat key (214), a retaining ring (215), a short shaft flange (216), a cylindrical head screw and a transmission belt (220); the ceramic bearing (205) and the ceramic bearing (208) are installed in the grooves at both ends of the bearing seat (207), and the ceramic bearing (208) is fixed in the bearing seat by the internal retaining ring (209); the short shaft (206) passes through the above-mentioned bearing from right to left, and is fixed to the ceramic bearing (205) on the left side by the external retaining ring (204); the ceramic bearing (205) is fixed in the bearing seat (207) by the hexagonal screw (201) and the cover plate (203), and the cover A sealing ring (202) is provided between the plate (203) and the bearing seat (207); the static ring of the second mechanical seal (212) is fixed to the bearing seat by a static ring pressure plate (210) and a hexagonal screw (211), and the dynamic ring of the second mechanical seal (212) is locked with the short shaft (206); the large pulley (213) is fixed to the short shaft (206) by two retaining rings (215), and a flat key (214) is provided between the large pulley (213) and the short shaft (206); a blind hole is provided on the right side of the short shaft (206), and a radial hole penetrating the blind hole is provided in the middle; holes are provided in the upper and lower parts of the middle of the bearing seat (207); the short shaft flange (216) is fixed to the right side of the short shaft (206) by a cylindrical head screw, a sealing ring is provided between the short shaft flange (216) and the short shaft (206), and the short shaft flange (216) is connected to the long shaft flange (122) by a hexagonal screw.

7. The rotating cross-flow organic membrane filter device according to claim 5, characterized in that: The power unit (3) comprises a motor (301) and a small pulley (302), and the small pulley (302) is connected to the large pulley (213) of the transmission unit (2) via a transmission belt (220).

8. The rotating cross-flow organic membrane filter device according to claim 5, characterized in that: The housing unit (4) comprises a cylinder left blind plate (401), a cylinder (402), a cylinder right flange (404), a cylinder right blind plate (405), a sealing cap (408) and a guide rail (411); The left blind plate (401) and the right flange (404) of the cylinder are welded to both sides of the cylinder (402); the right blind plate (405) of the cylinder is connected to the right flange (404) of the cylinder by means of a hexagonal nut and a hexagonal screw; a sealing ring is provided between the right blind plate (405) and the right flange (404); holes are provided at the bottoms of the left blind plate (401) and the right blind plate (405); a screw is provided on the mounting side plate (115) in the spindle unit (1), the screw passes through the hole and is locked by a nut to connect the spindle unit (1) to the housing unit (4); the guide rail (411) is welded inside the cylinder (402); the roller (116) of the spindle unit (1) moves along the guide rail (411).

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