CN213253842U - Cross rotating disc type membrane sewage separation device - Google Patents
Cross rotating disc type membrane sewage separation device Download PDFInfo
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- CN213253842U CN213253842U CN202021837281.3U CN202021837281U CN213253842U CN 213253842 U CN213253842 U CN 213253842U CN 202021837281 U CN202021837281 U CN 202021837281U CN 213253842 U CN213253842 U CN 213253842U
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Abstract
The utility model discloses a cross rotary disk type membrane sewage separation device in the technical field of membrane separation, which comprises a drainage system, a rotary membrane element, a hollow shaft, a sealing element and a driving system, wherein the drainage system comprises a rotary joint, a water collecting pipe and a water pump; two hollow shafts are arranged and are a first hollow shaft and a second hollow shaft; the rotary membrane elements are also correspondingly provided with two groups, namely a first rotary membrane element and a second rotary membrane element, and the two groups of rotary membrane elements are arranged in a mutually crossed and penetrated mode in the radial direction. The device has strong sealing performance between the rotating membrane element and the hollow shaft, avoids leakage from influencing the water outlet quality, has large disturbance to water by the disc-type membrane with cross rotation, can increase membrane flux to delay membrane pollution, and can be popularized and used in the field of sewage treatment.
Description
Technical Field
The utility model relates to a membrane separation technical field, in particular to rotatory disk membrane separation device.
Background
In recent decades, membrane separation technology has been rapidly developed and is receiving continuous attention worldwide, but the problem of membrane fouling can be helpful to the application and development of the technology. The prior industrial application mode of the membrane is relatively laggard, the membrane components are all static, and cross-flow filtration is formed by aeration; there is also an increasing interest in dynamic filtration with kinetic shear or filtration with shear enhancement for the purpose of reducing membrane fouling. The increase of the shear rate of the membrane surface proves to be one of the most efficient methods for increasing the membrane flux, such as a rotating membrane, a rotating disc or a torsional vibration membrane, which can enhance the shear rate of the membrane surface and form a membrane filtration system, and has been applied for a long time in the fields of biotechnology, chemical industry and the like, but has not been widely popularized in the field of sewage treatment.
In the chinese patent database, a rotating cross-flow type flat ceramic membrane separation turntable is disclosed, and its publication number: CN104841277A, published: 2015.08.19. the device comprises a hollow central shaft, a support member fixed on the hollow central shaft, a plurality of flat plate type ceramic membrane components supported by the support member and a driving mechanism for driving the hollow central shaft to rotate, wherein the flat plate type ceramic membrane components comprise hollow cavity type flat plate ceramic membranes, the hollow cavity type flat plate ceramic membranes comprise two separated membrane layers, a plurality of liquid collecting cavities and liquid outlet holes are formed in the periphery of the hollow cavity type flat plate ceramic membranes, and a plurality of cavities are formed in the hollow cavity type flat plate ceramic membranes. The turntable device adopts a flat ceramic membrane filtering technology, fully exerts the characteristics of large strength of the ceramic membrane, convenient implementation of high-pressure back washing and the like, and can expand the application field of the rotary cross-flow membrane separation technology. However, the sealing between the rotary flat membrane and the hollow shaft in the device can not be ensured, the quality of discharged water can be influenced once the rotary flat membrane is dislocated and leaks in the rotation, and in addition, the device has the advantages of single rotation mode, small sewage treatment capacity and large occupied area.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of above prior art, provide a rotatory disk membrane sewage separation device alternately, the leakproofness between reinforcing membrane element and the pipeline, alternately rotatory mode forms big shearing force on the membrane surface, strengthens the disturbance to water, increases membrane flux, delays the membrane pollution, filters through the rotation of rotatory membrane self simultaneously, reduces the aeration energy consumption, practices thrift the cost.
The purpose of the utility model is realized like this: a cross rotating disc type membrane sewage separation device comprises a drainage system, a rotating membrane element, a hollow shaft, a sealing element and a driving system, wherein the drainage system comprises a rotating joint, a water collecting pipe and a water pump; the rotary membrane elements are provided with two groups, namely a first rotary membrane element arranged outside the first hollow shaft and a second rotary membrane element arranged outside the second hollow shaft, and the first rotary membrane element and the second rotary membrane element are arranged in a mutually crossed and penetrated mode in the radial direction.
Compared with the prior art, the beneficial effects of the utility model are that:
first, the sealing element arranged between the rotary membrane element and the hollow shaft in the device has the fixing and sealing functions, so that the problem that the quality of outlet water is affected by sewage leakage caused by the deviation of the positions of the rotary membrane element and the hollow shaft in the rotating process can be effectively avoided.
Secondly, this device utilizes the rotation of film element, makes the membrane surface form powerful shearing force, and the pollutant is difficult for the surface of adhesion at the membrane, and the membrane element alternately rotates simultaneously and more can strengthen the disturbance to water, forms big torrent, can increase membrane flux, prolongs the cleaning cycle, effectively delays the membrane pollution.
Thirdly, the application mode of the conventional membrane industry is relatively lagged behind, the static aeration of the membrane component forms cross flow filtration, the aeration energy consumption accounts for up to 40 percent, and the device reduces the aeration energy consumption and saves the cost by rotating and filtering the rotating membrane.
Fourthly, the device adopts a cross rotation mode, compared with a single rotation mode, the membrane filtration area is increased, and the occupied area required for treating the same sewage quantity is smaller.
Furthermore, the length of the mutually crossed part of the first rotating membrane element and the second rotating membrane element is one third of the radius of the rotating membrane element, and the membrane elements arranged in a crossed mode can enhance the disturbance capacity to water in the rotating process, extra aeration is not needed, and energy consumption is saved.
Furthermore, the driving system comprises a motor, chain wheels are respectively arranged on the output shaft end of the motor, the first hollow shaft and the second hollow shaft, and a chain is wound among the chain wheels.
Furthermore, the driving system comprises a motor, chain wheels are respectively arranged on the output shaft end of the motor and the first hollow shaft, a chain is wound between the chain wheels, belt wheels are respectively arranged on the first hollow shaft and the second hollow shaft, and a V-shaped transmission belt is arranged between the belt wheels.
Further, the sealing element is made of a plastic framework and rubber materials are coated outside the plastic framework.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the first driving mechanism of the present invention.
Fig. 3 is a schematic diagram of the driving mechanism of the second embodiment of the present invention.
In the above figure, 1 the first rotating membrane element, 2 the sealing element, 3 the first hollow shaft, 4 the rotary joint, 5 the second rotating membrane element, 6 the chain, 7 the sprocket, 8 the motor, 9 the water collecting pipe, 10 the support frame, 11 the water pump, 12 the motor output shaft, 13 the belt wheel, 31 the second hollow shaft.
Detailed Description
As shown in fig. 1-3, a cross-rotating disk type membrane sewage separation device comprises a drainage system, a rotating membrane element, a hollow shaft, a sealing element 2 and a driving system, wherein the drainage system comprises a rotating joint 4, a water collecting pipe 9 and a water pump 11, the rotating joint 4 is arranged at the end part of the hollow shaft, the rotating joint 4 is connected with an inlet of the water pump 11 through the water collecting pipe 9, the sealing element 2 is arranged between the rotating membrane element and the hollow shaft, an inner cavity of the rotating membrane element is connected with an inner cavity of the hollow shaft, the driving system is in transmission connection with the hollow shaft, and the hollow shaft is provided with two hollow shafts which are a first hollow shaft 3 and a; the rotary membrane elements are provided in two sets, respectively, a first rotary membrane element 1 provided outside the first hollow shaft 3 and a second rotary membrane element 5 provided outside the second hollow shaft 31, the first rotary membrane element 1 and the second rotary membrane element 5 being provided so as to cross each other in the radial direction.
The length of the mutually crossed part of the first rotary membrane element 1 and the second rotary membrane element 5 is one third of the radius of the rotary membrane elements, and the membrane elements arranged in a crossed mode can enhance the disturbance capacity to water in the rotating process, extra aeration is not needed, and energy consumption is saved.
The utility model discloses an among the device, the transmission connected mode between actuating system and the quill shaft does: specifically, as shown in fig. 2, the driving system includes a motor 8, a sprocket 6 is respectively disposed at an end of the motor output shaft 12 and on the first hollow shaft 3 and the second hollow shaft 31, a chain 7 is wound between the sprockets 6, and the motor 8 drives the first hollow shaft 3 and the second hollow shaft 31 to rotate synchronously.
The utility model discloses an in the device, transmission between actuating system and the quill shaft is connected and can also be adopted another kind of mode, it is specifically as shown in fig. 3, actuating system includes motor 8, motor output shaft 12 end, be equipped with sprocket 6 on the first quill shaft 3 respectively, around being equipped with chain 7 between the sprocket 6, be equipped with band pulley 13 on first quill shaft 3 and the second quill shaft 31 respectively, be equipped with the V-arrangement drive belt between band pulley 13, motor 8 drives first quill shaft 3 rotatory, first quill shaft 3 drives second quill shaft 31 rotatory through band pulley 13.
The sealing element 2 between the rotary membrane element and the hollow shaft is made of a rubber material coated outside a plastic framework.
The utility model discloses the during operation, first quill shaft 3 and second quill shaft 31 pass through support frame 10 to be fixed in the bilge pit, and the transmission is connected between motor 8 and first quill shaft 3 and the second quill shaft 31, and motor 8 drive first quill shaft 3 and second quill shaft 31 are rotatory, and first rotatory film element 1 and the rotatory film element 5 of second that set up on first quill shaft 3 and the second quill shaft 31 also rotate in step. Feed liquid enters the cross rotating disc type membrane separation device from the feed inlet, approximately concentric linear motion is carried out on the surface of the membrane, and filtrate permeates the membrane, passes through the mesh structure, enters the interior of the membrane disc, enters the water collecting pipe 9 from a middle filtrate pipeline and is discharged through the water pump 11. The rotary disk type membrane separation equipment mainly generates strong shearing force on the surface of a membrane through the rotation of the membrane disk, and simultaneously the cross rotation between the first rotary membrane element 1 and the second rotary membrane element 5 which are crossly arranged on the first hollow shaft 3 and the second hollow shaft 31 further enhances the disturbance to water, so that pollutants in feed liquid are not easy to form deposition on the surface of the membrane, and the membrane pollution can be effectively prevented and slowed down. The reactor of the device does not need to produce large bubbles to provide extra disturbance and shearing force, and a micropore aeration system is adopted to improve the oxygen mass transfer efficiency, thereby finally achieving the purposes of cost reduction and efficiency improvement.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.
Claims (5)
1. A cross rotating disk type membrane sewage separation device comprises a drainage system, a rotating membrane element, a hollow shaft, a sealing element and a driving system, wherein the drainage system comprises a rotating joint, a water collecting pipe and a water pump, the rotating joint is arranged at the end part of the hollow shaft and is connected with an inlet of the water pump through the water collecting pipe, the sealing element is arranged between the rotating membrane element and the hollow shaft, an inner cavity of the rotating membrane element is connected with an inner cavity of the hollow shaft, and the driving system is in transmission connection with the hollow shaft, and the cross rotating disk type membrane sewage separation device is characterized in that: the two hollow shafts are respectively a first hollow shaft and a second hollow shaft; the rotary membrane elements are provided with two groups, namely a first rotary membrane element arranged outside the first hollow shaft and a second rotary membrane element arranged outside the second hollow shaft, and the first rotary membrane element and the second rotary membrane element are arranged in a mutually crossed and penetrated mode in the radial direction.
2. A cross-rotating disk type membrane-based wastewater separation plant according to claim 1, wherein: the length of the portion where the first and second revolving membrane elements cross each other is one third of the radius of the revolving membrane elements.
3. A cross-rotating disk type membrane-based wastewater separation plant according to claim 1, wherein: the driving system comprises a motor, chain wheels are respectively arranged on the output shaft end of the motor, the first hollow shaft and the second hollow shaft, and a chain is wound between the chain wheels.
4. A cross-rotating disk type membrane-based wastewater separation plant according to claim 1, wherein: the driving system comprises a motor, chain wheels are respectively arranged on an output shaft end of the motor and the first hollow shaft, a chain is wound between the chain wheels, belt wheels are respectively arranged on the first hollow shaft and the second hollow shaft, and a V-shaped transmission belt is arranged between the belt wheels.
5. A cross-rotating disk type membrane-based wastewater separation plant according to claim 1, wherein: the sealing element is made of a plastic framework and rubber materials are coated outside the plastic framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021837281.3U CN213253842U (en) | 2020-08-28 | 2020-08-28 | Cross rotating disc type membrane sewage separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021837281.3U CN213253842U (en) | 2020-08-28 | 2020-08-28 | Cross rotating disc type membrane sewage separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213253842U true CN213253842U (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021837281.3U Active CN213253842U (en) | 2020-08-28 | 2020-08-28 | Cross rotating disc type membrane sewage separation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213253842U (en) |
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2020
- 2020-08-28 CN CN202021837281.3U patent/CN213253842U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: Binjiang Intelligent Equipment Enterprise Port 10 #, No. 90, Gangqu Middle Road, Xinbei District, Changzhou City, Jiangsu Province, 213000 Patentee after: CHANGZHOU HUIHENG MEMBRANE TECHNOLOGY Co.,Ltd. Address before: 213000 No.2, Tenglong Road, Wujin economic development district, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU HUIHENG MEMBRANE TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |