CN209865455U - Continuously-running micro-filter - Google Patents
Continuously-running micro-filter Download PDFInfo
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- CN209865455U CN209865455U CN201920504177.3U CN201920504177U CN209865455U CN 209865455 U CN209865455 U CN 209865455U CN 201920504177 U CN201920504177 U CN 201920504177U CN 209865455 U CN209865455 U CN 209865455U
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Abstract
The utility model relates to a micro-filter capable of continuously operating, belonging to the technical field of sewage treatment equipment. The utility model is provided with two sets of filter tanks, the filtering efficiency is high; after the device is blocked, the filter screen can be cleaned and replaced without stopping the machine, so that the effective filtering time is greatly increased, and the filtering capacity cannot be reduced; the utility model is provided with pressure gauges in the electromagnetic valve and the filter tank, when the filter screen is clean, the filter pressure during normal filtration is tested, and twice of the test value is taken as the minimum limit value of the normal filter pressure; when the filter screen is seriously blocked, the filtering pressure during normal filtration is tested, the two times of the test value is taken as the maximum limit value of the normal filtering pressure, when the pressure value is in the pressure range, the filtering tank A normally runs, the filtering tank B stops, when the pressure value exceeds the maximum limit value, the filter screen is seriously blocked, the filter tank A needs to be detached for cleaning, the filtering tank A stops, and the filtering tank B normally runs without influencing the filtering efficiency and the filtering time.
Description
Technical Field
The utility model relates to a micro-filter capable of continuously operating, belonging to the technical field of sewage treatment equipment.
Background
The micro-filter is used as sewage purifying equipment and is widely used for filtering urban sewage, papermaking, textile, printing and dyeing, chemical industry, food, leather sewage and the like. The microfilter is a drum screen filter. The treated waste water enters the drum along the axial direction and flows out through the screen in a radial and radial mode, and impurities in the water are intercepted on the inner surface of the screen on the drum. When the impurities trapped on the filter screen are brought to the upper part by the rotary drum, the impurities are backflushed into the slag discharging groove by the pressure washing water and flow out. The operation of the existing micro-filter needs manual control, which wastes time and labor and has high sewage treatment cost.
The micro-filter is a purification device which is fixed on a rotary drum type filtration device by adopting a micro-porous screen mesh of 80-200 meshes/square inch and realizes solid-liquid separation by intercepting solid particles in the aquaculture water. The operating principle is that when the aquaculture water body passes through the microporous screen on the rotary drum of the micro-filter, the solid waste in the aquaculture water body is separated under the rotating action of the rotary drum, so that the water body is purified, and the aim of recycling is fulfilled. In general, when the micro-filter works, part of solid residues can remain on the filter holes, and the filtering effect of the filter body is influenced.
Currently, filtration is generally divided into 3 types: deep bed filtration, membrane filtration and surface filtration, wherein the surface filtration is to intercept solid particles by utilizing the surface of a filter medium or the surface of a filter cake generated in the filtration process so as to separate solid from liquid, and the filtration is widely applied to the chemical industry and the papermaking industry all the time; in recent years, integrated surface filtration apparatuses have been used in the field of sewage treatment, and apparatuses using filter cloth as a filter medium mainly include a rotary disc micro filter, a rotary drum micro filter, and the like.
According to research and experimental study, the technology has the advantages of simple principle and the like, and has been successfully applied to the field of reclaimed water recycling after secondary treatment of urban sewage abroad, but the existing micro-filter still has the following problems;
(1) the manufacturing cost is high; the existing device has a complex structure, and the cutting waste of the stainless steel filter cloth is serious;
(2) the occupied area is large; because the existing micro-filter has low filtering efficiency, when a large amount of sewage needs to be treated, the number of the micro-filters can be increased, so that the occupied area is large;
(3) the filtration efficiency is low; because the mesh number of the filter cloth is higher, the aperture is generally 10-100 μm, the filter cloth is easily blocked, and the filtering efficiency is influenced; meanwhile, after the device is blocked, the device needs to be stopped for cleaning and replacing the filter cloth, so that the effective filtering time is greatly reduced, and the filtering capacity is reduced;
(4) the filter cloth is frequently replaced; the existing micro-filter can not carry out back-cleaning in time, and the filter holes are seriously blocked; the machine must be stopped for cleaning, and the filter cloth is replaced more frequently; therefore, the replacement of the filter cloth is time-consuming, the downtime is prolonged, and the labor cost is increased.
Disclosure of Invention
The utility model discloses the main technical problem who solves: the device is blockked up the back, needs the shut down to carry out the washing and the change of filter cloth, the effectual filter time that has significantly reduced, problem that filtering capacity reduces, the utility model provides a sustainable operation microstrainer.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts:
a micro-filter capable of continuously running comprises a filter tank A (13) and a filter tank B (14), wherein sewage enters from a water inlet (1), when the pressure value of a pressure gauge A (3) is within a normal filtering pressure range, a solenoid valve A (5) is opened, a solenoid valve B (6) is closed, the sewage enters the filter tank A (13) and a filter screen A (4), and the filtered sewage is discharged from a water outlet (11); when the pressure value of the pressure gauge A (3) is not in the normal filtering pressure range, the pressure value of the pressure gauge B (8) is in the normal filtering pressure range, the electromagnetic valve A (5) is closed, the electromagnetic valve B (6) is opened, sewage enters the filtering tank B (14) and the filter screen B (7), and the filtered sewage is discharged from the water outlet (11); when the pressure value of the pressure gauge A (3) is not within the normal filtering pressure range, the filter screen replacing door A (12) is opened, the locking device A (2) is loosened, the filter screen A (4) is detached and cleaned, the cleaned filter screen A (4) is loaded into the filtering tank A (13), and the locking device A (2) is screwed down; when the pressure value of the pressure gauge B (8) is not in the normal filtering pressure range, the filter screen replacing door B (10) is opened, the locking device B (9) is loosened, the filter screen B (7) is detached for cleaning, the cleaned filter screen B (7) is arranged in the filter tank B (14), and the locking device B (9) is screwed down.
The filter screen A (4) and the filter screen B (7) are microporous screens with the size of 100-200 meshes/square inch.
The determination step of the normal filtering pressure range comprises the following steps: when the filter screen A (4) and the filter screen B (7) are respectively clean filter screens, testing the filter pressure during normal filtration, and taking twice of a test value as the minimum limit value of the normal filter pressure; and when the filter screens A (4) and B (7) are seriously blocked respectively, testing the filtering pressure during normal filtering, and taking twice of the test value as the maximum limit value of the normal filtering pressure.
The locking device A (2) and the locking device B (9) belong to a screwing state in the device operation process.
When the filter screen A (4) or the filter screen B (7) is dismounted for cleaning, the device does not need to be stopped and can continue to filter.
The utility model has the advantages that:
(1) the utility model is provided with two sets of filter tanks, the filtering efficiency is high; after the device is blocked, the filter screen can be cleaned and replaced without stopping the machine, so that the effective filtering time is greatly increased, and the filtering capacity cannot be reduced; when the filter screen in one of the filter tanks is blocked, the sewage directly enters the other filter tank for filtering, and at the moment, the blocked filter screen can be disassembled and cleaned without stopping the machine, so that the filtering time is greatly increased, and the filtering capacity is not influenced;
(2) the utility model is provided with pressure gauges in the electromagnetic valve and the filter tank, when the filter screen is clean, the filter pressure during normal filtration is tested, and twice of the test value is taken as the minimum limit value of the normal filter pressure; when the filter screen is seriously blocked, testing the filtering pressure during normal filtering, taking twice of a test value as the maximum limit value of the normal filtering pressure, when the pressure value is within the pressure range, normally operating the filtering tank A, stopping the filtering tank B, when the pressure value exceeds the maximum limit value, indicating that the filter screen is seriously blocked, and needing to be dismounted and cleaned, stopping the filtering tank A, and normally operating the filtering tank B without influencing the filtering efficiency and the filtering time;
(3) the utility model has lower manufacturing cost and simpler device structure; a plurality of filter tanks can be added, so that the filter screen replacement frequency is reduced; the filter does not need to be stopped for cleaning, does not increase the labor cost, and can increase the effective filtering time and reduce the labor cost.
Drawings
Fig. 1 is a front view of the continuously operating microfilter of the present invention.
Wherein, 1, a water inlet; 2. a locking device A; 3. a pressure gauge A; 4. a filter screen A; 5. an electromagnetic valve A; 6. a solenoid valve B; 7. a filter screen B; 8. a pressure gauge B; 9. a locking device B; 10. a filter screen replacing door B; 11. a water outlet; 12. a filter screen replacing door A; 13. a filter tank A; 14. and a filter tank B.
Detailed Description
A micro-filter capable of continuously running comprises a filter tank A (13) and a filter tank B (14), wherein sewage enters from a water inlet (1), when the pressure value of a pressure gauge A (3) is within a normal filtering pressure range, a solenoid valve A (5) is opened, a solenoid valve B (6) is closed, the sewage enters the filter tank A (13) and a filter screen A (4), and the filtered sewage is discharged from a water outlet (11); when the pressure value of the pressure gauge A (3) is not in the normal filtering pressure range, the pressure value of the pressure gauge B (8) is in the normal filtering pressure range, the electromagnetic valve A (5) is closed, the electromagnetic valve B (6) is opened, sewage enters the filtering tank B (14) and the filter screen B (7), and the filtered sewage is discharged from the water outlet (11); when the pressure value of the pressure gauge A (3) is not within the normal filtering pressure range, the filter screen replacing door A (12) is opened, the locking device A (2) is loosened, the filter screen A (4) is detached and cleaned, the cleaned filter screen A (4) is loaded into the filtering tank A (13), and the locking device A (2) is screwed down; when the pressure value of the pressure gauge B (8) is not in the normal filtering pressure range, the filter screen replacing door B (10) is opened, the locking device B (9) is loosened, the filter screen B (7) is detached for cleaning, the cleaned filter screen B (7) is arranged in the filter tank B (14), and the locking device B (9) is screwed down. The filter screen A (4) and the filter screen B (7) are microporous screens with the size of 100-200 meshes/square inch. The determination step of the normal filtering pressure range comprises the following steps: when the filter screen A (4) and the filter screen B (7) are respectively clean filter screens, testing the filter pressure during normal filtration, and taking twice of a test value as the minimum limit value of the normal filter pressure; and when the filter screens A (4) and B (7) are seriously blocked respectively, testing the filtering pressure during normal filtering, and taking twice of the test value as the maximum limit value of the normal filtering pressure. The locking device A (2) and the locking device B (9) belong to a screwing state in the device operation process. When the filter screen A (4) or the filter screen B (7) is dismounted for cleaning, the device does not need to be stopped and can continue to filter.
Claims (5)
1. A micro-filter capable of continuously running is characterized by comprising a filter tank A (13) and a filter tank B (14), sewage enters from a water inlet (1), when the pressure value of a pressure gauge A (3) is within a normal filtering pressure range, a solenoid valve A (5) is opened, a solenoid valve B (6) is closed, the sewage enters the filter tank A (13) and a filter screen A (4), and the filtered sewage is discharged from a water outlet (11); when the pressure value of the pressure gauge A (3) is not in the normal filtering pressure range, the pressure value of the pressure gauge B (8) is in the normal filtering pressure range, the electromagnetic valve A (5) is closed, the electromagnetic valve B (6) is opened, sewage enters the filtering tank B (14) and the filter screen B (7), and the filtered sewage is discharged from the water outlet (11); when the pressure value of the pressure gauge A (3) is not within the normal filtering pressure range, the filter screen replacing door A (12) is opened, the locking device A (2) is loosened, the filter screen A (4) is detached and cleaned, the cleaned filter screen A (4) is loaded into the filtering tank A (13), and the locking device A (2) is screwed down; when the pressure value of the pressure gauge B (8) is not in the normal filtering pressure range, the filter screen replacing door B (10) is opened, the locking device B (9) is loosened, the filter screen B (7) is detached for cleaning, the cleaned filter screen B (7) is arranged in the filter tank B (14), and the locking device B (9) is screwed down.
2. A continuously operating microfilter as claimed in claim 1, wherein: the filter screen A (4) and the filter screen B (7) are microporous screens with the size of 100-200 meshes/square inch.
3. A continuously operating microfilter as claimed in claim 1, wherein: the determination step of the normal filtering pressure range comprises the following steps: when the filter screen A (4) and the filter screen B (7) are respectively clean filter screens, testing the filter pressure during normal filtration, and taking twice of a test value as the maximum limit value of the normal filter pressure; and when the filter screens A (4) and B (7) are respectively blocked, testing the filtering pressure during normal filtering, and taking twice of the testing value as the minimum limit value of the normal filtering pressure.
4. A continuously operating microfilter as claimed in claim 1, wherein: the locking device A (2) and the locking device B (9) belong to a screwing state in the device operation process.
5. A continuously operating microfilter as claimed in claim 1, wherein: when the filter screen A (4) or the filter screen B (7) is dismounted for cleaning, the device does not need to be stopped and can continue to filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920504177.3U CN209865455U (en) | 2019-04-15 | 2019-04-15 | Continuously-running micro-filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920504177.3U CN209865455U (en) | 2019-04-15 | 2019-04-15 | Continuously-running micro-filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209865455U true CN209865455U (en) | 2019-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920504177.3U Expired - Fee Related CN209865455U (en) | 2019-04-15 | 2019-04-15 | Continuously-running micro-filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN209865455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114377458A (en) * | 2022-01-10 | 2022-04-22 | 尚川（北京）水务有限公司 | Solid-liquid mixture squeezes filtration system based on air pressure |
-
2019
- 2019-04-15 CN CN201920504177.3U patent/CN209865455U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114377458A (en) * | 2022-01-10 | 2022-04-22 | 尚川（北京）水务有限公司 | Solid-liquid mixture squeezes filtration system based on air pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 Termination date: 20210415 |
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| CF01 | Termination of patent right due to non-payment of annual fee |