CN110743215A - Sewage filter - Google Patents
Sewage filter Download PDFInfo
- Publication number
- CN110743215A CN110743215A CN201810811015.4A CN201810811015A CN110743215A CN 110743215 A CN110743215 A CN 110743215A CN 201810811015 A CN201810811015 A CN 201810811015A CN 110743215 A CN110743215 A CN 110743215A
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- CN
- China
- Prior art keywords
- filter
- cavity
- water
- water outlet
- sewage
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-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
- B01D24/16—Upward filtration
- B01D24/165—Upward filtration the filtering material being supported by pervious surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
- B01D24/4636—Counter-current flushing, e.g. by air with backwash shoes; with nozzles
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a sewage filter, comprising: tank body, top cap, inlet tube, filter media, outlet pipe. The tank body is internally divided into a water inlet cavity, a filter cavity and a water outlet cavity, the water inlet cavity is positioned at the bottom of the tank body, the filter cavity is positioned above the water inlet cavity, and the water outlet cavity is positioned above the filter cavity and at the top of the tank body. The top cover is arranged on the top of the tank body. The inlet pipe is connected to the inlet chamber. The filter media is placed in the filter cavity. The water outlet pipe is connected to the water outlet cavity. The sewage filter adopts a water flow path from bottom to top, so that the sewage stays in the filter material for a long time, solid impurities in the sewage can be fully adsorbed, and the filtering quality is improved. After using a period of time, can wash the filter media with opposite from top to bottom direction, get rid of adsorbed solid impurity wherein, promote the reuse rate and the life of filter media.
Description
Technical Field
The invention relates to sewage treatment equipment, in particular to a sewage filter.
Background
In the process of sewage treatment, the filtration of sewage is an important link. Generally, the filtration of the contaminated water is performed using a filter material such as quartz sand. The sewage flows through the filter material, and solid impurities in the water are absorbed by the filter material so as to remove partial solid impurities in the water.
In the prior art, the common filtering mode is that sewage is introduced from the upper part, naturally flows through a filtering material under the action of gravity, and filtered water is left from the lower part and enters the next procedure. This filtration mode has the following disadvantages:
1) the sewage flows downwards under the action of gravity at a high speed, and the time for passing through the filter material is too short, so that the filtering is insufficient.
2) The solid impurities trapped in the filter material also move downwards under the action of gravity, so that the risk that the solid impurities reenter the filtered water and flow into the next process exists.
3) Under normal operating conditions, solid impurities are all trapped in the filter material in a downward direction. After a period of use, the filter material becomes saturated with respect to its adsorptive capacity, and cleaning the filter material is difficult to achieve. The mode of adopting the downward washing filter material is difficult to effectively remove the solid impurities because the adsorption direction of the downward washing filter material is consistent with that of the solid impurities. Therefore, the filter material has low reuse rate and short service life in the mode.
Disclosure of Invention
The invention provides a sewage filter, wherein water flow is filtered in a direction from bottom to top.
The invention discloses a sewage filter, comprising: tank body, top cap, inlet tube, filter media, outlet pipe. The tank body is internally divided into a water inlet cavity, a filter cavity and a water outlet cavity, the water inlet cavity is positioned at the bottom of the tank body, the filter cavity is positioned above the water inlet cavity, and the water outlet cavity is positioned above the filter cavity and at the top of the tank body. The top cover is arranged on the top of the tank body. The inlet pipe is connected to the inlet chamber. The filter media is placed in the filter cavity. The water outlet pipe is connected to the water outlet cavity.
The water inlet cavity, the filter cavity and the water outlet cavity are divided by a filter grid, and the filter grid can permeate water.
The water outlet pipe is connected to a water outlet buffer which is arranged in the water outlet cavity.
The water outlet buffer is annular and is arranged on the inner side of the tank wall of the water outlet cavity, a group of water outlet holes are formed in the water outlet buffer, and an outlet of the water outlet buffer is connected with the water outlet pipe.
The sewage filter also comprises a cleaning pipe, wherein the cleaning pipe penetrates through the top cover and directly extends into the filter cavity, and the cleaning pipe cleans the filter material.
The sewage filter also comprises a drain pipe which is arranged at the bottom of the tank body.
The sewage filter also comprises an exhaust pipe, wherein the exhaust pipe is arranged on the top cover, and the exhaust pipe exhausts the gas in the tank body.
The sewage filter adopts a water flow path from bottom to top, so that the sewage stays in the filter material for a long time, solid impurities in the sewage can be fully adsorbed, and the filtering quality is improved. After using a period of time, can wash the filter media with opposite from top to bottom direction, get rid of adsorbed solid impurity wherein, promote the reuse rate and the life of filter media.
Drawings
Fig. 1 discloses a sectional structure view of a sewage filter according to the present invention.
Detailed Description
The present invention provides a sewage filter, and fig. 1 is a sectional view illustrating the sewage filter according to the present invention. Referring to fig. 1, the sewage filter includes: tank 11, top cap 12, inlet tube 13, filter media 14, outlet pipe 15, play water buffer 16, scavenge pipe 17, drain pipe 18 and blast pipe 19.
The interior of the tank body 11 is divided into a water inlet cavity 111, a filter cavity 112 and a water outlet cavity 113. The water inlet cavity 111, the filter cavity 112 and the water outlet cavity 113 are arranged from bottom to top in sequence. The water inlet cavity 111 is positioned at the bottom of the tank body, the filter cavity 112 is positioned above the water inlet cavity, the water outlet cavity 113 is positioned above the filter cavity and the top of the tank body. The water inlet cavity 111, the filter cavity 112 and the water outlet cavity 113 are divided by a filter grid, and the filter grid can permeate water. The main function of the filter grid is to confine the filter material within the filter cavity formed by the filter grid. A top cover 12 is mounted on top of the can 11. The inlet pipe 13 is connected to the inlet chamber 111. Filter 14 is placed in filter cavity 112, filter 14 may be quartz sand. The outlet pipe 15 is connected to the outlet chamber 113. Referring to fig. 1, the water outlet pipe 15 is connected to a water outlet buffer 16, and the water outlet buffer 16 is disposed in the water outlet cavity 113. The water outlet buffer 16 is circular and is arranged on the inner side of the tank wall of the water outlet cavity 113, a group of water outlet holes 161 are formed in the water outlet buffer, and the outlet of the water outlet buffer 161 is connected with the water outlet pipe 15. Cleaning pipe 17 passes through top cap 12, and cleaning pipe 17 extends directly to filter cavity 112, and cleaning pipe 17 washs filter media 14. A drain pipe 18 is provided at the bottom of the tank 11. An exhaust pipe 19 is provided in the top cover 12, and the exhaust pipe 19 exhausts the gas in the tank 11.
The filtering process of the sewage filter is as follows: the sewage enters from the inlet pipe 13 and flows into the inlet chamber 111 first. The water level in the tank 11 rises with the continuous inflow of the sewage, and the sewage enters the filter cavity 112 and contacts with the filter material 14 with the rising of the water level. Because the promotion of water level is promoted through the inflow of inlet tube, therefore the rising of water level is more slow, and the velocity of flow of sewage in filter cavity 112 is slower, can stay longer time for the solid impurity in the sewage can be adsorbed to the filter media fully. The water level rises further into the outlet chamber 113. The water entering the outlet chamber 113 is filtered water through the filter media, and the solid impurities therein are substantially removed. The filtered water flows into the water outlet hole 161 of the water outlet buffer 16, then flows into the water outlet pipe 15 through the water outlet buffer 16, is discharged through the water outlet pipe 15, and enters the next process. During the filtration of the contaminated water, gas may be generated and the generated gas is discharged through the gas discharge pipe 19.
After a period of use, the filter material becomes saturated with respect to its adsorption capacity and needs to be cleaned. The cleaning process of the sewage filter is as follows: the drain pipe 18 at the bottom of the tank 11 is opened. The cleaning pipe 17 is opened, and the filter material 14 is cleaned from top to bottom by the cleaning water flow of the cleaning pipe 17. Cleaning pipe 17 extends directly into filter cavity 112, and the flow of cleaning water from cleaning pipe 17 flushes the solid impurities adsorbed in filter medium 14 downward and is discharged from drain pipe 18 along with the flow of cleaning water.
The sewage filter adopts a water flow path from bottom to top, so that the sewage stays in the filter material for a long time, solid impurities in the sewage can be fully adsorbed, and the filtering quality is improved. After using a period of time, can wash the filter media with opposite from top to bottom direction, get rid of adsorbed solid impurity wherein, promote the reuse rate and the life of filter media.
The sewage filter provided by the invention can greatly reduce the particulate impurities contained in washing water in actual use, and the blockage of the washing pipe and the spray header rarely occurs. Before the invention is used, an operator has to stop the machine to clean the cleaning pipe and the spray header once every 2 hours of operation, and nowadays, only the spray header is cleaned for 2 times a day, so that the productivity is greatly liberated, the operation efficiency of the dehydrator is improved, the possibility of illegal operation of a maintenance worker is reduced, and the secondary pollution to washing tap water is also reduced.
It should be understood by those skilled in the art that the above embodiments are for illustrative purposes only and are not intended to limit the present invention, and that changes and modifications to the above embodiments may fall within the scope of the appended claims.
Claims (7)
1. A sewage filter, comprising:
the water filter comprises a tank body, wherein the tank body is internally divided into a water inlet cavity, a filter cavity and a water outlet cavity, the water inlet cavity is positioned at the bottom of the tank body, the filter cavity is positioned above the water inlet cavity, the water outlet cavity is positioned above the filter cavity, and the top of the tank body is provided with a water inlet hole and a water outlet hole;
the top cover is arranged at the top of the tank body;
the water inlet pipe is connected to the water inlet cavity;
the filter material is placed in the filter cavity;
and the water outlet pipe is connected to the water outlet cavity.
2. The effluent filter of claim 1, wherein said inlet chamber, said filter chamber and said outlet chamber are separated by a filter screen, said filter screen being permeable to water.
3. The sewage filter of claim 1 wherein the outlet pipe is connected to an outlet buffer, the outlet buffer being disposed in the outlet chamber.
4. The sewage filter of claim 3, wherein the water outlet buffer is annular and is disposed inside the tank wall of the water outlet chamber, the water outlet buffer has a plurality of water outlet holes, and the outlet of the water outlet buffer is connected to the water outlet pipe.
5. The sewage filter of claim 1 further comprising a cleaning tube extending through the top cap and directly into the filter chamber, the cleaning tube cleaning the filter media.
6. The sewage filter of claim 1, further comprising a drain pipe disposed at a bottom of the tank.
7. The sewage filter of claim 1 further comprising an exhaust pipe disposed on the top cover, the exhaust pipe exhausting gas from the tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810811015.4A CN110743215A (en) | 2018-07-23 | 2018-07-23 | Sewage filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810811015.4A CN110743215A (en) | 2018-07-23 | 2018-07-23 | Sewage filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110743215A true CN110743215A (en) | 2020-02-04 |
Family
ID=69274991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810811015.4A Pending CN110743215A (en) | 2018-07-23 | 2018-07-23 | Sewage filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110743215A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112374655A (en) * | 2020-11-20 | 2021-02-19 | 浙江大学 | Rural drinking water filtration system |
| CN113877431A (en) * | 2021-11-25 | 2022-01-04 | 浙江华强环境科技有限公司 | Tank body filter-pressing type ultrafiltration device |
-
2018
- 2018-07-23 CN CN201810811015.4A patent/CN110743215A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112374655A (en) * | 2020-11-20 | 2021-02-19 | 浙江大学 | Rural drinking water filtration system |
| CN113877431A (en) * | 2021-11-25 | 2022-01-04 | 浙江华强环境科技有限公司 | Tank body filter-pressing type ultrafiltration device |
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