CN106861256A - Continuous filter and process for purifying water with backwashing function - Google Patents

Continuous filter and process for purifying water with backwashing function Download PDF

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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
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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
Application number
CN201510911757.0A
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Chinese (zh)
Inventor
崔志彬
崔修江
张婉莹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Shunzhi Technology Co Ltd
Original Assignee
Harbin Shunzhi Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harbin Shunzhi Technology Co Ltd filed Critical Harbin Shunzhi Technology Co Ltd
Priority to CN201510911757.0A priority Critical patent/CN106861256A/en
Publication of CN106861256A publication Critical patent/CN106861256A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02Filters 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
    • B01D24/10Filters 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46Regenerating the filtering material in the filter
    • B01D24/4631Counter-current flushing, e.g. by air
    • B01D24/4652Counter-current flushing, e.g. by air by using gasbumps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2101/00Types of filters having loose filtering material
    • B01D2101/04Sand or gravel filters

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

Continuous filter with backwashing function and Process for purifying water
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.
CN201510911757.0A 2015-12-11 2015-12-11 Continuous filter and process for purifying water with backwashing function Pending CN106861256A (en)

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

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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)

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Cited By (3)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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Application publication date: 20170620