CN217472875U - Rotary drum type micro-filter - Google Patents
Rotary drum type micro-filter Download PDFInfo
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- CN217472875U CN217472875U CN202220862003.6U CN202220862003U CN217472875U CN 217472875 U CN217472875 U CN 217472875U CN 202220862003 U CN202220862003 U CN 202220862003U CN 217472875 U CN217472875 U CN 217472875U
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- Prior art keywords
- rotary drum
- backwashing
- filter screen
- water
- double
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 121
- 239000010865 sewage Substances 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000011001 backwashing Methods 0.000 claims description 79
- 238000011010 flushing procedure Methods 0.000 claims description 30
- 239000007921 spray Substances 0.000 claims description 18
- 238000000746 purification Methods 0.000 claims description 16
- 239000008213 purified water Substances 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 description 13
- 238000009360 aquaculture Methods 0.000 description 3
- 244000144974 aquaculture Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a rotary drum micro-filter, the controller of double-circuit back flush unit controls the advance of double-circuit back flush pipeline, the water supply stops, rotary drum transmission is used for driving rotary drum filter screen rotary drum and rotates, the bilge pit sets up in rotary drum filter screen rotary drum inner chamber, double-circuit back flush pipeline sets up in the top of rotary drum filter screen rotary drum, double-circuit back flush pipeline is including the back flush pipe of two tunnel, the back flush pipe of two tunnel sets up on the circumference that uses the center of rotary drum filter screen rotary drum as the centre of a circle, the interval is provided with a plurality of shower nozzles on the back flush pipe of every road, the shower nozzle staggered arrangement on the back flush pipe of two tunnel, sewage collection device's bilge pit is located the shower nozzle below of two tunnel back flush pipes and is used for accepting the washings that the back flush pipe washed out, rotary drum filter screen rotary drum leads to the basin. This microstrainer can be fast, wash totally the stifled filth of gluing of clean filter screen internal surface, and the washing effect is better, and the treatment effeciency is higher, also makes the filter screen that the local can install the mesh is thinner simultaneously be used for special treatment requirement.
Description
Technical Field
The utility model relates to a microstrainer, in particular to a rotary drum microstrainer.
Background
In order to filter the water source or the tail water discharged in aquaculture, drum type micro-filters are often used to filter the water source or the tail water discharged to remove impurities therein for use or discharge. The mesh of the filter screen of the existing micro-filter is mostly 200 meshes (the diameter of the filter screen is about 75 mu m), and the defects of common filtering effect and filtering efficiency, easy occurrence of blockage and the like exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a rotary drum type micro-filter which can automatically wash the micro-filter according to the requirement.
A rotary drum type micro-filter comprises a machine body, a rotary drum type filter screen rotary drum, a rotary drum transmission device, a double-way backwashing device and a sewage collecting device, wherein the double-way backwashing device comprises a double-way backwashing pipeline and a controller, the controller controls the water feeding and stopping of the double-way backwashing pipeline, the double-way backwashing pipeline is communicated with the water feeding device, the rotary drum type filter screen rotary drum is rotatably erected on the machine body, the rotary drum transmission device is used for driving the rotary drum type filter screen rotary drum to rotate, a sewage tank of the sewage collecting device is arranged in an inner cavity of the rotary drum type filter screen rotary drum, the double-way backwashing pipeline is arranged above the rotary drum type filter screen rotary drum, the double-way backwashing pipeline comprises two ways of backwashing pipes, the two ways of backwashing pipes are arranged on a circumference which takes the center of the rotary drum type filter screen rotary drum as a circle center, the two ways of backwashing pipes extend along the axis of the rotary drum type filter screen rotary drum, and a plurality of spray heads are arranged on each way of backwashing pipes at intervals, the nozzles on the two back-flushing pipes are arranged in a staggered mode, the sewage tank of the sewage collecting device is positioned below the nozzles of the two back-flushing pipes and used for receiving flushing objects flushed by the back-flushing pipes, and the drum type filter screen rotary drum is communicated with the water tank.
When the rotary drum type micro-filter works, the rotary drum type filter screen rotary drum rotates under the driving of the rotary drum transmission device, water to be treated enters the inner cavity of the rotary drum type filter screen rotary drum of the double-channel micro-filter through the water inlet pipe, then passes through the filter screen, enters the purifying chamber and then flows out of the water tank through the water outlet pipe. After working for a period of time, the inner surface of the mesh of the filter screen is stuck and blocked by the dirt, so that the filtering area of the filter screen is reduced, the filtering speed is reduced, the controller controls the back flushing device to start working, the two-way back flushing pipeline is used for feeding water, the fed water is sprayed out by the spray nozzle on the two-way back flushing pipe, the purified water with a certain speed washes the filter screen from the outer side of the filter screen, the purified water penetrates through the mesh of the filter screen, the dirt stuck and blocked on the inner surface of the mesh of the filter screen is washed away, the dirt falls into a sewage tank of the sewage collecting device along with the purified water and is finally discharged out of the machine by the sewage pipe, the filter screen is unblocked along with the progress of the back flushing process, the filtering speed is increased, the controller controls the back flushing device to stop working, and the two-way back flushing device is closed. The back flushing operation is performed in turn, so that the normal operation of the double-channel micro-filter is ensured. The staggered nozzle structure ensures that the linear distance from any point of the outer surface of the mesh on the circumferential screen surface to the center hole of the nozzle is more uniform, the water flow scouring force on the mesh surface is more uniform during work, and the washing effect is good.
The controller is controlled by adopting timing control, namely, the backwashing device is started and stopped for a certain time.
The controller is controlled by adopting water level difference control, and the sensor senses the water level height difference between the interior of the drum type filter screen rotating drum and the interior of an external water tank to control the start and stop of the backwashing device.
After the backwashing device works for a period of time, the inner surface of the meshes of the filter screen is stuck by the dirt, so that the filtering area of the filter screen is reduced, the filtering speed is reduced, the water level of the inner cavity of the rotary drum is raised, and when the height difference h1 between the water level of the inner cavity of the rotary drum and the water level of the purification chamber reaches a set value, the backwashing device starts to work. Along with the proceeding of the back washing process, the filter screen is unblocked, the filtering speed is increased, and when the height difference h1 between the water level of the inner cavity of the rotary drum and the water level of the purification chamber is smaller than a set value, the two-way back washing device is closed.
The water tank is divided into a buffer chamber and a purification chamber by a partition plate, the buffer chamber is communicated with a water inlet pipe of water to be treated, and the drum type filter screen rotary drum is communicated with the purification chamber.
The two-way backwashing device further comprises a backwashing water pump, the backwashing water pump is arranged in the purifying chamber, and the backwashing pump is communicated with the two-way backwashing pipeline.
The back washing water pump is arranged in the purifying chamber by adopting a vertical structure, and a water suction port at the lower part of the back washing water pump is positioned below a water outlet of the purifying chamber of the water tank.
The back-flushing water pump pumps the purified water, and the purified water is sprayed out from the nozzle on the two-way back-flushing pipe through the back-flushing pipeline, so that the water for spraying and washing can be cleaned without blocking the nozzle.
The backwashing water pump is arranged in the water tank purifying chamber, the height difference between a water suction port of the backwashing water pump and a water outlet of the water tank purifying chamber is h3, and the height difference between h3 and the water outlet of the water tank purifying chamber is 20-50 mm.
Because the backwash water pump is arranged in the water tank purification chamber and the water suction port of the water pump is lower than the height of the effluent weir of the purification chamber, the smooth water outlet and high reliability of the backwash water pump during working are ensured.
One spray head of the two back flushing pipes faces the axis of the drum type filter screen drum, and the spray head of the other back flushing pipe faces the central line of the sewage tank.
The nozzle orientations of the two back-flushing pipes have an included angle d1, and the included angle d1 is 25-35 degrees.
The spray head structure with the two paths arranged at the included angle sprays washing water which is equivalent to multidirectional washing on the meshes of the filter screen, and is more favorable for cleaning dirt and impurities adhered to the meshes of the filter screen.
The purified water sprayed by the spray head is conical, and the cone angle d2 is generally 120 degrees.
To sum up, the utility model discloses compare prior art following advantage:
because this patent has adopted binary channels back flush unit to and the double-circuit shower nozzle position of unique design is arranged and the nozzle orientation, can be fast, wash totally the stifled filth of gluing of clean filter screen internal surface, the washing effect is better, and the treatment effeciency is higher, also makes the filter screen that the local can install the mesh is thinner simultaneously be used for the special treatment requirement.
Because this patent places the back flush water pump in the basin clean room and the water pump water sucking mouth position is less than the clean room and goes out the weir height, guarantees that the back flush water pump during operation goes out water smoothly, and the reliability is high.
Drawings
Fig. 1 is a front view of the drum type micro filter of the present invention in operation.
Fig. 2 is a left side view of the drum type micro filter of the present invention in operation.
Figure 3 is a schematic diagram of a two-way backwash conduit.
The reference numbers indicate a water tank 1, a machine body 2, a backwashing water pump 3, a two-way backwashing device 4, a rotary drum transmission device 5, a rotary drum type filter screen rotary drum 6 and a sewage collecting device 7; 11 water inlet pipe, 12 water outlet pipe, 13 middle isolation plate, 14 buffer chamber, 15 purification chamber, 31 main backwashing pipe, 32 water suction port, 41 right backwashing pipe, 42 left backwashing pipe, 43 right backwashing pipe spray head, 44 left backwashing pipe spray head, 61 filter screen and 71 sewage pipe.
Detailed Description
The present invention will be described in more detail with reference to the following examples.
Example 1
A double-channel micro-filter for aquaculture comprises a machine body 2, a drum type filter screen drum 6, a drum transmission device 5, a double-path backwashing device 4 and a sewage collecting device 7, wherein the double-path backwashing device 4 comprises a backwashing water pump 3, a backwashing main pipeline 31 and a double-path backwashing pipeline. The double-path backwashing pipeline of the double-path backwashing device 4 is divided into a left-path backwashing pipe 42 and a right-path backwashing pipe 41, the distance between the two-path backwashing pipes is h2, generally, the distance between h2 and the right-path backwashing pipe is 100-150 mm, the two-path backwashing pipes are arranged along the circumference of the central line of the drum type filter screen rotating drum 6, the radius is R, and the value range of the general radius R is 600-1200 mm according to the specification of a product model; a plurality of spray heads are arranged on the backwashing pipeline at intervals, and spray nozzles of the spray heads face one side of the filter screen; the nozzles on the two back flushing pipelines are arranged in a staggered manner, namely the nozzle of the left back flushing pipe 42 is positioned between two adjacent nozzles of the right back flushing pipe 41; the nozzle of the right backwashing pipe nozzle 43 faces the central line direction of the drum-type filter screen rotating drum, the nozzle of the left backwashing pipe nozzle 44 faces the central line direction of the water outlet pipe of the sewage collecting device, the orientation included angle of the two nozzles is d1, generally, 25-35 degrees are taken from d1, and the two-way staggered position arrangement and the two-way nozzle included angle arrangement mode are used for completely washing. The double-channel microfilter is arranged in a purification chamber of a water tank which is divided into a buffer chamber 14 and a purification chamber 15 by a middle partition plate 13, a backwashing water pump 3 of the double-channel backwashing device 4 adopts a vertical structure and is arranged in the purification chamber 15, a water suction port 32 at the lower part of the double-channel backwashing device is arranged below a water outlet weir of the purification chamber 15 of the water tank, the height difference is L3, and generally L3 is 20-50 mm.
When the device works, the drum type filter screen rotating drum 6 rotates under the driving of the rotating drum transmission device 5, water to be treated flows into the buffer chamber 14 from the water inlet pipe 11, then enters the inner cavity of the drum type filter screen rotating drum 6 of the double-channel micro-filter, then passes through the filter screen 61, enters the purifying chamber 15 and then flows out of the water tank from the water outlet pipe 12. After working for a period of time, the inner surface of the meshes of the filter screen 61 is stuck by dirt, so that the filtering area of the filter screen is reduced, the filtering speed is reduced, the water level of the inner cavity of the rotary drum rises, when the height difference h1 between the water level of the inner cavity of the rotary drum and the water level of the purifying chamber 15 reaches an elevation set value (generally, the elevation set value is 100-250 mm), the double-way backwashing device 4 starts working, the backwashing water pump 3 extracts purified water from the purifying chamber 15 through the water suction port 32, the purified water is sprayed out from the nozzle on the double-way backwashing pipe through the main backwashing pipe 31, the purified water sprayed out from the nozzle is conical, the cone angle d2 is generally 120 degrees, the purified water with a certain speed washes the filter screen 61 from the outer side of the filter screen, the purified water penetrates through the meshes of the filter screen, the dirt stuck and blocked on the inner surface of the meshes of the filter screen is washed out, the dirt falls into the sewage collecting device 7 along with the purified water, and is discharged out of the sewage pipe 71. Along with the proceeding of the back washing process, the filter screen 61 is unblocked, the filtering speed is increased, and when the height difference h1 between the water level of the inner cavity of the rotary drum and the water level of the purifying chamber 15 becomes smaller and is lower than a low-range set value (generally, the low-range set value is 30-100 mm), the double-path back washing device 4 is closed. The back flushing operation is performed in turn, so that the normal operation of the double-channel micro-filter is ensured.
The practical application of the technology shows that the dual-channel micro-filter adopts unique back-washing spray head dual-channel staggered position arrangement and two-channel spray nozzlesThe included angle arrangement mode makes the filter effect better. The diameter of the rotary drum is 115mm, and the filtering area is 5.8m 2 The micro-filter of the prior art is taken as an example, when the mesh of the screen mesh of the micro-filter is 200 meshes (the aperture is about 75 mu m), the treatment capacity is about 250t/h when the water source for aquaculture is treated; under the condition that the diameter, the filtering area and the mesh configuration of the screen mesh of the rotary drum of the double-channel microfilter are the same, the treatment capacity can reach 400t/h when the same water source is treated; when the installed microfilter had a 400 mesh screen (about 38 μm pore size), the throughput was about 250t/h for the same water source, as in the prior art microfilters.
The parts not described in the present embodiment are the same as those in the prior art.
Claims (9)
1. A rotary drum micro-filter is characterized in that: the double-channel backwashing device comprises a machine body, a rotary drum type filter screen rotary drum, a rotary drum transmission device, a double-channel backwashing device and a sewage collecting device, wherein the double-channel backwashing device comprises a double-channel backwashing pipeline and a controller, the controller controls the water inlet and the water outlet of the double-channel backwashing pipeline, the double-channel backwashing pipeline is communicated with the water inlet device, the rotary drum type filter screen rotary drum is rotatably erected on the machine body, the rotary drum transmission device is used for driving the rotary drum type filter screen rotary drum to rotate, a sewage tank of the sewage collecting device is arranged in an inner cavity of the rotary drum type filter screen rotary drum, the double-channel backwashing pipeline is arranged above the rotary drum type filter screen rotary drum, the double-channel backwashing pipeline comprises two channels of backwashing pipes, the two channels of backwashing pipes are arranged on a circumference which takes the center of the rotary drum type filter screen rotary drum as the circle center, the two channels of backwashing pipes extend along the axis of the rotary drum type filter screen rotary drum, and a plurality of spray heads are arranged on each channel of backwashing pipe at intervals, the nozzles on the two back-flushing pipes are arranged in a staggered mode, the sewage tank of the sewage collecting device is positioned below the nozzles of the two back-flushing pipes and used for receiving flushing objects flushed by the back-flushing pipes, and the drum type filter screen rotary drum is communicated with the water tank.
2. The rotary drum microfilter of claim 1, wherein: the controller is controlled by adopting water level difference control, and the sensor senses the water level height difference between the interior of the drum type filter screen rotating drum and the interior of an external water tank to control the start and stop of the backwashing device.
3. The rotary drum microfilter of claim 2, wherein: the water tank is divided into a buffer chamber and a purification chamber by a partition plate, the buffer chamber is communicated with a water inlet pipe of water to be treated, and the drum type filter screen rotary drum is communicated with the purification chamber.
4. A rotary drum microfilter according to claim 3, wherein: the two-way backwashing device also comprises a backwashing water pump, the backwashing water pump is arranged in the purifying chamber, and the backwashing pump is communicated with the two-way backwashing pipeline.
5. The rotary drum microfilter of claim 4, wherein: the back-flushing water pump is arranged in the purifying chamber by adopting a vertical structure, and a water suction port at the lower part of the back-flushing water pump is positioned below a water outlet of the water tank purifying chamber.
6. The rotary drum microstrainer of claim 5, wherein: the backwashing water pump is arranged in the water tank purification chamber, the height difference between the water suction port of the backwashing water pump and the water outlet of the water tank purification chamber is h3, and the height difference between the water suction port of the backwashing water pump and the water outlet of the water tank purification chamber is 20-50 mm.
7. The rotary drum microstrainer of claim 6, wherein: one spray head of the two back flushing pipes faces the axis of the drum type filter screen drum, and the spray head of the other back flushing pipe faces the central line of the sewage tank.
8. The rotary drum microfilter of claim 7, wherein: the nozzles of the two back-flushing pipes face to form an included angle d1, and the included angle d1 is 25-35 degrees.
9. The rotary drum microstrainer of claim 8, wherein: the purified water sprayed by the spray head is conical, and the cone angle d2 is 120 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220862003.6U CN217472875U (en) | 2022-04-14 | 2022-04-14 | Rotary drum type micro-filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220862003.6U CN217472875U (en) | 2022-04-14 | 2022-04-14 | Rotary drum type micro-filter |
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| Publication Number | Publication Date |
|---|---|
| CN217472875U true CN217472875U (en) | 2022-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220862003.6U Active CN217472875U (en) | 2022-04-14 | 2022-04-14 | Rotary drum type micro-filter |
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| Country | Link |
|---|---|
| CN (1) | CN217472875U (en) |
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- 2022-04-14 CN CN202220862003.6U patent/CN217472875U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240830 Address after: No. 169-2, Xujia Village, Jingxi Village, Jingxi Town, Minhou County, Fuzhou City, Fujian Province 350100, China Patentee after: Fuzhou Degong Electromechanical Equipment Co.,Ltd. Country or region after: China Address before: 350000 Jingxi Village, Jingxi Town, Minhou County, Fuzhou City, Fujian Province Patentee before: FUZHOU HILIKING ELECTROMECHANICAL CO.,LTD. Country or region before: China |
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| TR01 | Transfer of patent right |