CN106861256A - Continuous filter and process for purifying water with backwashing function - Google Patents
Continuous filter and process for purifying water with backwashing function Download PDFInfo
- Publication number
- CN106861256A CN106861256A CN201510911757.0A CN201510911757A CN106861256A CN 106861256 A CN106861256 A CN 106861256A CN 201510911757 A CN201510911757 A CN 201510911757A CN 106861256 A CN106861256 A CN 106861256A
- Authority
- CN
- China
- Prior art keywords
- water
- pipe
- filter
- sand
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- B01D24/4652—Counter-current flushing, e.g. by air by using gasbumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2101/00—Types of filters having loose filtering material
- B01D2101/04—Sand or gravel filters
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
A kind of continuous filter and process for purifying water with backwashing function.Traditional sand filtering device comprising rapid filter, double layer filter, filter-press, etc. diversified forms; but there is common issue in them; shut down backwash problem; medium is fixed i.e. in filter process; thing is suspended by filter medium after one section of temporal filtering to block; its rate of filtration reduction, filtration resistance increases, and water-yielding capacity declines.
A kind of continuous filter with backwashing function, its composition includes：Sandfiltration pot（
10
）, sandfiltration pot with go out clear water pipe（
3
）Connection, goes out clear water pipe and grit water separator（
7
）Connection, grit water separator respectively with blow-off pipe（
2
）, air sand extraction pipe（
4
）Connection, air sand extraction pipe respectively with water inlet pipe（
1
）, air lift pump（
9
）, water inlet water distributor（
5
）Connection, water inlet water distributor respectively with flow backwards sand hopper（
6
）Connection
.The present invention is applied to the further purification of sewage disposal subsequent treatment water.
Description
Technical field：
The present invention relates to a kind of continuous filter with backwashing function and
Process for purifying water
, it is applied to sand filtration water purification field.
Background technology：
Traditional sand filtering device includes rapid filter, double layer filter, filter-press, the diversified forms such as diatomaceous earth filter, but there is common issue in them, shut down backwash problem, medium is fixed i.e. in filter process, thing is suspended by filter medium after one section of temporal filtering to block, the reduction of its rate of filtration, filtration resistance increases, water-yielding capacity declines, now must just carry out backwashing the regeneration for realizing filter bed, when being backwashed, filter operation must be interrupted, a filter must be increased when special as standby or be used alternatingly, although so having reached the purpose of continuous filtering, but complex process.Cost of equipment is high, and floor space is big, not easy to operate, management difficulty is big.
The content of the invention：
It is an object of the invention to provide a kind of continuous filter with backwashing function
And process for purifying water.
Above-mentioned purpose is realized by following technical scheme：
A kind of continuous filter with backwashing function, its composition includes：Sandfiltration pot, described sandfiltration pot is connected with clear water pipe is gone out, the described clear water pipe that goes out is connected with grit water separator, described grit water separator is connected with blow-off pipe, air sand extraction pipe respectively, described air sand extraction pipe is connected with water inlet pipe, air lift pump, water inlet water distributor respectively, and described water inlet water distributor is connected with refluence sand hopper respectively.
The described continuous filter with backwashing function, described sandfiltration pot is connected with filtering layer, support frame respectively, and ground fixed plate is provided with described support frame.
The described continuous filter with backwashing function, described water conservancy diversion sand hopper is cone, and described grit water separator is that wrong ring type is arranged on sand filtration cylinder top is vertical with air sand extraction pipe and is connected, described water inlet pipe pipe into
30
Degree angle is connected with described air sand extraction pipe.
The sand filtration process for purifying water of the described continuous filter with backwashing function, the method comprises the following steps：
Filter process is：Through the raw water after dosing coagulant or biochemical treatment by water inlet pipe, into uniform cyclone water distributor device, current from the aperture of water distribution branch pipe when flowing out, uniform flute profile energy dissipating, water distributing plate are run into, unlifting pressure is reduced, so as to play a part of water distribution uniformity, suspension in raw water is during from bottom to top filtering layer is passed through, dam to get off by filtrate, filter water rises to water leg, clear water reserviors are entered through going out clear water pipe；Backwash process is：At the middle part of sand filter, air sand extraction pipe is set
,
When the small compressed air of density is passed through, negative pressure is formed on sand filter bottom, and the dirty sand for driving filter bottom by gas stripping together rises, and elevated mixture falls into sand washing trough from air sand extraction pipe top, and sand grains enters with current
“
Wrong ring type
”
Grit water separator, in the presence of water-head of the filtering water outlet with backwash water outlet, flushing water in sand extraction tube in air lift water mixing sand-washing device together discharges filter tank from blow-off pipe, and clean filtrate returns to filtering layer under gravity, and filtrate wash cycles process is completed inside filter tank.
Beneficial effects of the present invention：
1.
The low, energy consumption of present device investment is low, operating cost is low, without being equipped with high-power backwashing pump, air blower, and laying Backwash pipeline, only need to be equipped with low-powered air compressor, and such as disposal ability is
50m 3 /h
The equipment only need be equipped with
185W
Air compressor, greatly save equipment investment and operating cost.
2.
Present device floor space is small, save space, and continuous sand filtration water purifier filtering velocity is reachable
10
~
12m/h
, the disposal ability in unit area filter tank is improved, filter tank quantity is reduced, save floor occupying area.
3.
Stable, good filtration effect of the invention, filtering layer is constantly cleaned by friction, all the time in clean conditions, will not blockage phenomenon, it is ensured that the stability of operation and the stability of filter effect；Equipment operating efficiency is high, and water inlet uses up flow type, and the filtrate cut after dirt is constantly lifted backwash so that all filtrates can play a role in filtering layer bottom.
4.
Present invention cleaning displacement is continuous and treatment is simple, high degree of automation, need not shut down backwash；
Filtrate gives full play to filtration, is suitable for water quality and is widely varied, and can process outstanding dirt content raw water high；Management service is simple and safe, and using single special filtrate, installation, convenient disassembly, auxiliary equipment is few, and air compressor power used is small, and utilization voltage is only
220V
。
5.
The present invention completes mixing, coagulation, filtering and backwash, continuous filtering, continuous backwash, without backwashing pump and backwash water tank in a device.
Brief description of the drawings：
Accompanying drawing
1
It is structural representation of the invention.
Specific embodiment：
Embodiment
1
：
A kind of continuous filter with backwashing function, its composition includes：Sandfiltration pot
10
, described sandfiltration pot with go out clear water pipe
3
Connection, described goes out clear water pipe and grit water separator
7
Connection, described grit water separator respectively with blow-off pipe
2
, air sand extraction pipe
4
Connection, described air sand extraction pipe respectively with water inlet pipe
1
, air lift pump
9
, water inlet water distributor
5
Connection, described water inlet water distributor respectively with flow backwards sand hopper
6
Connection.
Embodiment
2
：
According to embodiment
1
The described continuous filter with backwashing function, described sandfiltration pot respectively with filtering layer
8
, support frame
11
Connection, is provided with ground fixed plate under described support frame
12
。
Embodiment
3
：
According to embodiment
1
Or
2
The described continuous filter with backwashing function, described water conservancy diversion sand hopper is cone, and described grit water separator is that wrong ring type is arranged on sand filtration cylinder top is vertical with air sand extraction pipe and is connected, described water inlet pipe pipe into
30
Degree angle is connected with described air sand extraction pipe.
Embodiment
4
：
According to embodiment
1
—
3
The described continuous filter with backwashing function
And process for purifying water
, the method comprises the following steps：
Filter process is：Through the raw water after dosing coagulant or biochemical treatment by water inlet pipe, into uniform cyclone water distributor device, current from the aperture of water distribution branch pipe when flowing out, uniform flute profile energy dissipating, water distributing plate are run into, unlifting pressure is reduced, so as to play a part of water distribution uniformity, suspension in raw water is during from bottom to top filtering layer is passed through, dam to get off by filtrate, filter water rises to water leg, clear water reserviors are entered through going out clear water pipe；Backwash process is：At the middle part of sand filter, air sand extraction pipe is set
,
When the small compressed air of density is passed through, negative pressure is formed on sand filter bottom, and the dirty sand for driving filter bottom by gas stripping together rises, and elevated mixture falls into sand washing trough from air sand extraction pipe top, and sand grains enters with current
“
Wrong ring type
”
Grit water separator, in the presence of water-head of the filtering water outlet with backwash water outlet, flushing water in sand extraction tube in air lift water mixing sand-washing device together discharges filter tank from blow-off pipe, and clean filtrate returns to filtering layer under gravity, and filtrate wash cycles process is completed inside filter tank.
Claims (4)
1. a kind of continuous filter with backwashing function, its composition includes：Sandfiltration pot, it is characterized in that：Described sandfiltration pot is connected with clear water pipe is gone out, the described clear water pipe that goes out is connected with grit water separator, described grit water separator is connected with blow-off pipe, air sand extraction pipe respectively, described air sand extraction pipe is connected with water inlet pipe, air lift pump, water inlet water distributor respectively, and described water inlet water distributor is connected with refluence sand hopper respectively.
2. the continuous filter with backwashing function according to claim 1, it is characterized in that：Described sandfiltration pot is connected with filtering layer, support frame respectively, and ground fixed plate is provided with described support frame.
3. the continuous filter with backwashing function according to claim 1 and 2, it is characterized in that：Described water conservancy diversion sand hopper is cone, and described grit water separator is that wrong ring type is arranged on sand filtration cylinder top is vertical with air sand extraction pipe and is connected, and described water inlet pipe pipe is connected into 30 degree of angles with described air sand extraction pipe.
4. the process for purifying water of the described continuous filter with backwashing function of one of a kind of claim 1-3, it is characterized in that：The method comprises the following steps：
Drainage filter process is：Through the raw water after dosing coagulant or biochemical treatment by water inlet pipe, into uniform cyclone water distributor device, current from the aperture of water distribution branch pipe when flowing out, uniform flute profile energy dissipating, water distributing plate are run into, unlifting pressure is reduced, so as to play a part of water distribution uniformity, suspension in raw water is during from bottom to top filtering layer is passed through, dam to get off by filtrate, filter water rises to water leg, clear water reserviors are entered through going out clear water pipe；Backwash process is：At the middle part of sand filter, air sand extraction pipe is set, when the small compressed air of density is passed through, negative pressure is formed on sand filter bottom, the dirty sand for driving filter bottom by gas stripping together rises, elevated mixture falls into sand washing trough from air sand extraction pipe top, sand grains enters " wrong ring type " grit water separator with current, in the presence of water-head of the filtering water outlet with backwash water outlet, flushing water in sand extraction tube in air lift water mixing sand-washing device together discharges filter tank from blow-off pipe, clean filtrate returns to filtering layer under gravity, filtrate wash cycles process is completed inside filter tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510911757.0A CN106861256A (en) | 2015-12-11 | 2015-12-11 | Continuous filter and process for purifying water with backwashing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510911757.0A CN106861256A (en) | 2015-12-11 | 2015-12-11 | Continuous filter and process for purifying water with backwashing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106861256A true CN106861256A (en) | 2017-06-20 |
Family
ID=59238324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510911757.0A Pending CN106861256A (en) | 2015-12-11 | 2015-12-11 | Continuous filter and process for purifying water with backwashing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106861256A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920889A (en) * | 2016-06-24 | 2016-09-07 | 江苏尚昆生物设备有限公司 | Filter |
| CN109607902A (en) * | 2019-01-08 | 2019-04-12 | 南昌航空大学 | A kind of well water filter backwashed |
| CN111375232A (en) * | 2018-12-27 | 2020-07-07 | 北京奥博水处理有限责任公司 | Large-traffic medium filter equipment |
-
2015
- 2015-12-11 CN CN201510911757.0A patent/CN106861256A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920889A (en) * | 2016-06-24 | 2016-09-07 | 江苏尚昆生物设备有限公司 | Filter |
| CN111375232A (en) * | 2018-12-27 | 2020-07-07 | 北京奥博水处理有限责任公司 | Large-traffic medium filter equipment |
| CN109607902A (en) * | 2019-01-08 | 2019-04-12 | 南昌航空大学 | A kind of well water filter backwashed |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |