CN102451580A - Drawer type filtering method and device for water treatment - Google Patents

Drawer type filtering method and device for water treatment Download PDF

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Publication number
CN102451580A
CN102451580A CN2010105200824A CN201010520082A CN102451580A CN 102451580 A CN102451580 A CN 102451580A CN 2010105200824 A CN2010105200824 A CN 2010105200824A CN 201010520082 A CN201010520082 A CN 201010520082A CN 102451580 A CN102451580 A CN 102451580A
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China
Prior art keywords
filtering
drawer type
water
filter
filtering ponds
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CN2010105200824A
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Chinese (zh)
Inventor
李孟
张斌
曹教鸿
刘晓宇
廖祁明
刘�文
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Hubei Zhongbi Environmental Protection Technology Co ltd
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Hubei Zhongbi Environmental Protection Technology Co ltd
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Priority to CN2010105200824A priority Critical patent/CN102451580A/en
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Abstract

The invention discloses a drawer type multistage fine filtering method and a device for water treatment, wherein the filtering method adopts a multistage series homogeneous filter bed structure filtering form, and is arranged into an independent cell filtering tank according to a drawer type, each cell can independently complete the filtering and back flushing processes from top to bottom in the water flow direction, the filter material of each stage of filter layer is arranged in series along the total reverse-granularity filter layer structure with the grain diameter from large to small in the water flow direction, and the filter material adopts different grain diameter grading; the drawer type filtering device can be provided with one or more than one unit cell filtering ponds according to drawer type, the filtering ponds are provided with a water inlet pipe and a water inlet valve, the lower part of the filtering ponds is provided with a water outlet pipe, filtering material layers and supporting layers with different granularities are arranged in the filtering ponds, the bottom of the pond is provided with an independent back washing water inlet pipe, a water drainage tank is arranged in the filtering ponds, the filtering ponds are externally connected with back washing water drainage pipes and externally connected with a water drainage main pipe, and the drawer type filtering device effectively improves the sewage interception.

Description

Water treatment drawer type filter method and device thereof
Technical field
The present invention relates to industrial cycle water treatment, Industrial Wastewater Treatment, natural former water and advanced treatment process thereof, especially to drawer type multi-level fine filter method and device thereof in the water treatment process for purifying under the lower condition of earth surface water source raw water turbidity.
Backgroundfield
In the engineering practice of water treatment; Traditional filter type adopts the single or multiple lift filtrate vertically to flow to the water outlet form, can't realize anti-completely granularity filtration (promptly descending along water inlet direction particle diameter of filter medium), a layer phenomenon very easily occur mixing; Skewness; Both reduced effective holding filth capacity of filtering layer, the difficulty when having increased backwash again makes that the work period of filter shortens, the system water consumption increases, water quality deterioration.Therefore need new filtered version to overcome these problems.
Summary of the invention
The objective of the invention is in order to overcome the defective of prior art, a kind of low cost, less energy consumption, drawer type cascade stage fine filtering method and device thereof that effluent quality is good are provided.
One of the present invention's the drawer type cascade stage fine filtering method with water treatment is achieved in that and adopts plural serial stage homogeneous filter bed structure filtered version; Be arranged to independently cell filtering ponds by drawer type, the top-down water (flow) direction of each cell can be accomplished filtration, backwash process alone; Backwash rate visual element lattice filtering ponds cut dirty degree setting; Every lattice filtering layer keeps homogeneous texture, and filtering layer particle diameter of filter medium at different levels is provided with along water (flow) direction descending overall anti-granularity structure of filtering layer and series connection, and filtrate adopts different size grading; Make the amount of damming of every lattice filtering layer be tending towards maximum, guarantee filtering accuracy.
The present invention's two the drawer type multi-level fine filter with water treatment is achieved in that described drawer type plural serial stage fine filtering device, by drawer type independently cell filtering ponds is set at least, and water inlet pipe and water intaking valve are arranged on the filtering ponds; Under outlet pipe is arranged; In be provided with varigrained filter material layer and supporting layer, establish independently backwash water inlet pipe at the bottom of the pond, be provided with rhone in each cell filter tank; External backwash drainpipe, and insert a main sewer.
And described drawer type plural serial stage fine filtering device can be provided with one or more cell filtering ponds tandem compounds, and water inlet pipe inserts respectively and surmounts pipe and surmount valve.
And the filter material layer filtrate can be porous make pottery material, quartz and anthracite.
And described drawer type plural serial stage fine filtering device is a plurality of cell filtering ponds, and the bottom floor units lattice can be provided with aerator, and the filter material layer filtrate can be husky for natural manganese.
This filter is compared with traditional filter form that vertically flows through; Effectively utilized the maximum filtering layer volume of holding filth capacity as far as possible; Improved the dirty efficient of cutting of whole filtering layer; And reduced the height of whole filter, helped arranging in pairs or groups, be prepared into integrated water treatment equipment with other treatment process.The first, the second lattice adopt the filtering layer height little, work the dirty effect that cuts; The filtering layer height of back is big, plays the in-depth filtration effect, guarantees filtering accuracy.
Simultaneously; This filter solves the blockage problem that the conventional quartz sand filtering material occurs between continuous operating period; For subsequent technique lightens the load; Thereby in this filter tank, can reach the effect of high-rate fitration with littler thickness of filter bed and higher filtering velocity condition, satisfy the leading indicator requirement of strict national drinking water effluent quality, obtain desirable technology and economic benefit.The backwash system of this multi-level fine filter also has its advantage, can wash separately and does not interfere with each other between level and the level, and the required water consumption of every grade of filtrate flushing is all fewer like this, has practiced thrift power consumption water in a large number and has consumed.And the impurity holding filth capacity distribution situation that this water intake mode brought also more helps filtrate backwash from bottom to top.In addition, when raw water quality is relatively good, can reduce progression, energy savings easily.Give at natural former water and industry, in the sewage water filtration treatment process, domesticly do not see this kind form.
Description of drawings
Fig. 1 is water treatment drawer type filter method of the present invention and the sketch map that installs single lattice thereof.
Fig. 2 is the sketch map of water treatment drawer type multi-level fine filter three lattice of the present invention.
The 1-water intaking valve, the 2-water inlet pipe, 3-surmounts valve, 4-backwash outlet pipe, 5-water distribution, draining common groove; The 6-filter material layer, the 7-filtering ponds, 8-surmounts pipe, 9-supporting layer, 10-backwash water inlet arm; 11-backwash water inlet, the shared main of aeration, 12-outlet pipe, 13-main sewer, 14-outfall sewer.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further specified, with reference to Fig. 1,2.
As shown in Figure 1, a kind of drawer type multi-level fine filter method adopts drawer type plural serial stage homogeneous filter bed structure filtered version; Be arranged to independently cell filtering ponds (7) by drawer type; Separate between the cell, each cell can be accomplished filtration, backwash process alone, and every lattice filtering layer (6) keeps homogeneous texture; And filtering layers at different levels (6) particle diameter of filter medium is along the descending overall anti-granularity structure of filtering layer of water (flow) direction; Filtrate adopts different size grading, makes the amount of damming of every lattice filtering layer be tending towards maximum, guarantees filtering accuracy simultaneously.
Drawer type plural serial stage fine filtering device is established independently cell filtering ponds (7) at least by the drawer type setting, and water inlet pipe (2) and water intaking valve (1) are arranged on the filtering ponds (7); Under outlet pipe (12) is arranged; In be provided with varigrained filter material layer (6) and supporting layer (9), independently backwash water inlet pipe (11) is established at the end, pond (7), is provided with rhone (5) in pond (7); External backwash outlet pipe (4), and external main sewer (13).Filter material layer (6) filtrate can be porous make pottery material, quartz and anthracite.
The inventive method embodiment: described drawer type plural serial stage fine filtering device; This device is above cell filtering ponds (7) according to actual needs; Water inlet pipe (7) inserts respectively and surmounts pipe (8) and surmount valve (3), filter process: former water gets into filtering ponds (7) after water intaking valve (1) gets into water inlet pipe (2), and the filter material layer of flowing through (6), supporting layer (9) filter; Flow into and filter the hydrospace, back, flow out through outlet pipe (12); Water can get into next stage after the filter of flowing out, and also can directly discharge through surmounting pipe (8).
Backwash process: water purification is after main (11), backwash water inlet arm (10) are intake in backwash; Flow into filtering ponds (7); Under pressure, supporting layer of flowing through (9) and filter material layer (6) compile after backwash outlet pipe (4) is discharged filtering ponds (7) at distribution channel (5).
When multiple-unit lattice as shown in Figure 2 are connected; Former water is in elevator pump is promoted to this drawer type multi-level fine filter, and this device adopts porous haydite as filtrate, filters the back water outlet and gets into the next unit lattice; Begin partial filtration, filter back water gets into the third level and filters.Utilize the seal-off pressure formula to filter, filtering velocity is 30m/h, and several lattice filtering velocitys in front are high, and several lattice filtering velocitys in back are low.The concrete grating of these 3 grades of inner filtering layers is: first order particle diameter is 1.25-1.6mm, and laying depth is 400mm; Second level particle diameter is 0.9-1.25mm, and laying depth is 250mm; Third level particle diameter is 0.8-1.25mm, and laying depth is 200mm.Adopt water (flow) direction from bottom to top during flushing, visual section dirty degree of each cell filtering ponds is provided with different backwash rates.The backwash water inlet flows into from the water distribution eyelet of each cell bottom, and reflexive wash-water gutter flows out behind the whole from bottom to top flushing filtering layer.Backwash can be adopted single lattice flushing, also can wash together by two lattice, also can wash simultaneously by three lattice, and backwash rate is 12L/ (s.m2), and washing length is 5 minutes.When a certain lattice wherein overhaul, perhaps during backwash, can open and surmount valve accordingly, these lattice are surmounted, directly get into the next unit lattice.Can guarantee that so every grade of filter material layer can both obtain abundant backwash, also save energy consumption simultaneously.Backwash is confirmed by pressure shown in every lattice Pressure gauge.Supporting layer adopts mineral granule, floor height 200mm.
For different quality, this device can be arranged to different processing functions with each cell, thereby carries out water treatment targetedly.When water quality is better, can only adopt a cell to filter; When water quality is relatively poor, adopt the multiple-unit lattice to filter, different units lattice filter material layer adopts anti-granularity to filter; When containing impurity such as iron, manganese when water body the inside, last lattice are added aerator, make filter material layer with natural manganese sand simultaneously, can reach the effect of advanced treating.

Claims (5)

1. water treatment drawer type multi-level fine filter method; It is characterized in that: adopt plural serial stage homogeneous filter bed structure filtered version, be arranged to independently cell filtering ponds (7), the top-down water (flow) direction of each cell by drawer type; Can accomplish filtration, backwash process alone; Backwash rate visual element lattice filtering ponds cut dirty degree setting, and every lattice filtering layer (6) keeps homogeneous texture, and filtering layer at different levels (6) particle diameter of filter medium is provided with along water (flow) direction descending overall anti-granularity structure of filtering layer and series connection; Filtrate adopts different size grading, makes the amount of damming of every lattice filtering layer be tending towards maximum.
2. water treatment drawer type multi-level fine filter; It is characterized in that: described drawer type plural serial stage fine filtering device, by drawer type independently cell filtering ponds (7) are set at least, water inlet pipe (2) and water intaking valve (1) are arranged on the filtering ponds (7); Under outlet pipe (12) is arranged; In be provided with varigrained filter material layer (6) and supporting layer (9), independently backwash water inlet pipe (11) is established at the end, pond (7), is provided with rhone (5) in each cell filter tank (7); External backwash drainpipe (4), and insert a main sewer (13).
3. water treatment drawer type multi-level fine filter according to claim 2; It is characterized in that: described drawer type plural serial stage fine filtering device; One or more cell filtering ponds (7) tandem compounds can be set, and water inlet pipe (2) inserts respectively and surmounts pipe (8) and surmount valve (3).
4. water treatment drawer type multi-level fine filter according to claim 2 is characterized in that: filter material layer (6) filtrate can be porous make pottery material, quartz and anthracite.
5. according to claim 2 or 3 described water treatment drawer type multi-level fine filters; It is characterized in that: described drawer type plural serial stage fine filtering device is a plurality of cell filtering ponds (7); Bottom floor units lattice filtering ponds (7) can be provided with aerator, and filter material layer (6) filtrate can be husky for natural manganese.
CN2010105200824A 2010-10-25 2010-10-25 Drawer type filtering method and device for water treatment Pending CN102451580A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102657964A (en) * 2012-05-22 2012-09-12 武汉钢铁(集团)公司 Process for treating oily wastewater in metallurgical industry and device thereof
CN102688617A (en) * 2012-05-22 2012-09-26 武汉钢铁(集团)公司 Multi-purpose water treatment filtering device
CN105148575A (en) * 2015-09-30 2015-12-16 胡小弟 Backwash device
CN105396342A (en) * 2015-12-13 2016-03-16 成都绿源新创环保科技有限公司 A rotary-filter-plate filter tank
CN106310746A (en) * 2016-10-27 2017-01-11 重庆大学 Tandem type multistage filtering device
CN108392865A (en) * 2018-04-12 2018-08-14 华东师范大学 End based on the existing Storm Sewer Network in residential block cuts dirty separator and cuts dirty method
CN109052836A (en) * 2018-08-29 2018-12-21 戚汝常 A kind of parallel domestic living waste water treater and method
CN110711414A (en) * 2018-07-12 2020-01-21 北京奥博水处理有限责任公司 Double-bed medium filter
CN113045063A (en) * 2021-03-17 2021-06-29 清华大学 Water purifying device and method based on self-driven electrochemical Fenton-like flocculation reaction

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2699973Y (en) * 2003-11-24 2005-05-18 杨源 Highly effective filtering device
WO2008049833A2 (en) * 2006-10-24 2008-05-02 Danieli & C. Officine Meccaniche S.P.A. Sand filtering device
CN101732900A (en) * 2008-11-12 2010-06-16 湖北中碧环保科技有限公司 Radiation side direction stream cascade stage fine filtering method and device thereof
CN201586414U (en) * 2010-01-06 2010-09-22 湖北中碧环保科技有限公司 Cascade fine depth filtering device with radiating type lateral flow for removing iron and manganese
CN201930588U (en) * 2010-10-25 2011-08-17 湖北中碧环保科技有限公司 Drawer-type filtering device for water treatment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2699973Y (en) * 2003-11-24 2005-05-18 杨源 Highly effective filtering device
WO2008049833A2 (en) * 2006-10-24 2008-05-02 Danieli & C. Officine Meccaniche S.P.A. Sand filtering device
CN101732900A (en) * 2008-11-12 2010-06-16 湖北中碧环保科技有限公司 Radiation side direction stream cascade stage fine filtering method and device thereof
CN201586414U (en) * 2010-01-06 2010-09-22 湖北中碧环保科技有限公司 Cascade fine depth filtering device with radiating type lateral flow for removing iron and manganese
CN201930588U (en) * 2010-10-25 2011-08-17 湖北中碧环保科技有限公司 Drawer-type filtering device for water treatment

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102657964A (en) * 2012-05-22 2012-09-12 武汉钢铁(集团)公司 Process for treating oily wastewater in metallurgical industry and device thereof
CN102688617A (en) * 2012-05-22 2012-09-26 武汉钢铁(集团)公司 Multi-purpose water treatment filtering device
CN102657964B (en) * 2012-05-22 2014-10-29 武汉钢铁(集团)公司 Process for treating oily wastewater in metallurgical industry and device thereof
CN105148575A (en) * 2015-09-30 2015-12-16 胡小弟 Backwash device
CN105396342A (en) * 2015-12-13 2016-03-16 成都绿源新创环保科技有限公司 A rotary-filter-plate filter tank
CN106310746A (en) * 2016-10-27 2017-01-11 重庆大学 Tandem type multistage filtering device
CN108392865A (en) * 2018-04-12 2018-08-14 华东师范大学 End based on the existing Storm Sewer Network in residential block cuts dirty separator and cuts dirty method
CN110711414A (en) * 2018-07-12 2020-01-21 北京奥博水处理有限责任公司 Double-bed medium filter
CN110711414B (en) * 2018-07-12 2021-11-02 北京奥博水处理有限责任公司 Double-bed medium filter
CN109052836A (en) * 2018-08-29 2018-12-21 戚汝常 A kind of parallel domestic living waste water treater and method
CN113045063A (en) * 2021-03-17 2021-06-29 清华大学 Water purifying device and method based on self-driven electrochemical Fenton-like flocculation reaction

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Application publication date: 20120516