CN2640571Y - Continuous operating filter - Google Patents
Continuous operating filter Download PDFInfo
- Publication number
- CN2640571Y CN2640571Y CN 03213521 CN03213521U CN2640571Y CN 2640571 Y CN2640571 Y CN 2640571Y CN 03213521 CN03213521 CN 03213521 CN 03213521 U CN03213521 U CN 03213521U CN 2640571 Y CN2640571 Y CN 2640571Y
- Authority
- CN
- China
- Prior art keywords
- filtrate
- filter
- tank body
- washer
- water
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000004140 cleaning Methods 0.000 claims abstract description 25
- 239000000706 filtrate Substances 0.000 claims description 66
- 230000002708 enhancing effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 6
- 239000010865 sewage Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 9
- 239000000725 suspension Substances 0.000 description 8
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000005201 scrubbing Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- -1 filtering velocity Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The utility model provides a continuously running filter, which includes a tank body, an overflow cofferdam, a drain pipe, an inlet pipe and a water distribution device, a filter material syringe and a filter material recycle lifting pipe as well as an air distribution device, mainly characterized in that the overflow cofferdam is a sleeve ring structure with an upper opening and arranged on the upper part outside the tank body, the height of the cofferdam can be higher than the upper edge of the tank body, the drain pipe is communicated with the overflow cofferdam, the drain pipe is provided with a valve which controls cleaning mixture. The movable bed filter of the utility model has the main advantages that the adoption of the outside overflow cofferdam drain structure to keep a uniformly uplifted flow, which effectively solves the problem that the filter effect is influenced by different flow speeds of different filter sections. By the control of the usage of the filter material cleaning mixtures, the utility model can effectively control the rinse effect of the filter material, which can be suitable for the filter requirements of different water qualities, keep a uniform flow capacity and outlet water quality. The utility model is suitable for all filter processing courses of suspended substances sewage.
Description
Technical field
The utility model relates to a kind of water treatment facilities, more specifically says so and removes the filter plant of suspension in the water, particularly can carry out the filter plant of continuous filtration operation.
Background technology
Filtration is as one of the removal means of suspension in the water, owing to have the good removal effect and the high processing degree of depth, not only in city or trade effluent advanced treating and reusing sewage processing, be used widely, and be that the equipment that processes such as (as running water, industrial fresh water, boiler feedwater), recirculated cooling water processing generally adopt is handled in city and industrial water supply.
Filter is removed the mechanism of suspension, mainly is to utilize the micro-pore that filters bed inside, and particulate contaminants in the trap water, its course of work comprises filters and two processes of filtrate cleaning.According to different conditions such as filtrate, filtering velocity, water (flow) direction, the bed depth, current motive forces, filter can mark off number of different types.If according to whether moving of filter medium in the filter process, then can reduce two types of fixed bed and moving beds.
The fixed bed filtering device mainly relies on the filter bed top layer to hold back suspension to the filtrate of 300～400mm below the top layer, and not only pollutant holding capability is low, and in use, exists obviously and the shortcoming that can't overcome.One of shortcoming is to realize continuous filtration product water, i.e. filtration can not be carried out simultaneously with backwash, filters with backwash process manually or to automatically switch; Two of shortcoming is general washing or the air-water backwashing mode of adopting when being the filtrate cleaning, needs high-power flushing water pump; Three of shortcoming is no matter to adopt which kind of cleaning way, and filtrate all is difficult for thoroughly cleaning up, and the result is along with the prolongation of time, the filtrate conglomeration, and water-flowing amount descends, and the effluent quality variation finally quits work, and changes filtrate; Four of shortcoming is the time length of filter cycle, and the influence of being advanced concentration of suspension height in the water is bigger, can't fix or prolong, and when concentration of suspension is higher in sewage, can not keep long-time filtration, and backwash is frequent, and aquifer yield is low.Chinese patent 94217260 discloses a kind of fluid bed reversely-washing filter, adopts liftable filtrate extruding disk, and extruding disk moves up when backwash, uses high-speed water jets to wash away filtrate, makes filtrate journey fluidized state, wash away the back with extruding disk with the filtrate compacting.This filter is intermittent operation in use, and the problems referred to above do not have fine solution.
Moving bed filter can solve some problems that the fixed bed fixed bed exists, and can realize continued operation, prevents filtrate caking etc.US4126546 discloses a kind of moving bed filter, and its filtrate circularly enhancing pipe is arranged on filter interior central authorities, and its subject matter is that riser takies filter space, and equipment is all comparatively difficult by dress and maintenance.Disclosed moving bed filter such as US5462654, US4891142, filtrate circularly enhancing pipe also is arranged on filter interior central authorities, and filtrate is identical with the flow direction, and draining is arranged in the screen net structure in the filter material layer.Its concurrent flow makes the suspension in the waste water hold back weak effect, and clear water is discharged and easily caused silk screen to stop up in the screen net structure, and the filter space flow is weak even stop to cause " dead angle " below the screen net structure, does not play a role in filtering, and the filter space utilization rate is low.US5746913, US5277829 etc. disclose a kind of moving bed filter, filtrate circularly enhancing pipe is arranged on the filter outside, cofferdam overflow mode is adopted in its draining, and overflow area accounts for the filter part partial cross-section, and filtrate loops back the position deviation filter center position of filtering bed.Because the existence of overflow area, make current skewness in lateral cross section, because filtrate falls the position deviation filter center after rise, make the accumulation inclined-plane that filtrate angulation in filter is different, it is filter material layer height difference, increased the weight of the phenomenon of current skewness, the current skewness will be directed at filtrate and can not be fully utilized, and effluent quality is affected.
Summary of the invention
At the deficiencies in the prior art, the utility model provides that a kind of effluent quality is good, the continuous operation type moving bed effluent filter of stable operation.
The utility model filter comprises members such as tank body, overflow cofferdam and drainpipe, water inlet pipe and water-locator, filtrate washer, filtrate circularly enhancing pipe and air sparger, wherein tank body is the filter body structure, and other member is on demand attached on the tank body relevant position.
Tank body is a tube structure, and the bottom adopts the inclined-plane or the conical surface to form the filtrate outlet.The overflow cofferdam is the sleeve circulus of upper opening, is arranged on top, tank body outside, and the cofferdam height need surpass the tank body upper edge, and drainpipe communicates with the overflow cofferdam.Water inlet pipe is arranged at the tank body middle and lower part, and the part of water inlet pipe in tank body is provided with water-locator.The filtrate washer is arranged on tank body internal upper part middle position, washer top is provided with circulation filtrate inlet and cleaning solution outlet, the cleaning solution outlet communicates with the cleaning solution drainpipe, the cleaning solution drainpipe is provided with the valve of control cleaning solution consumption, the washer bottom center is provided with the filtrate outlet, lower side can be provided with cleaning solution inlet, can empty barrel structure in the washer, but structure such as baffling swash plate preferably is set.Filtrate circularly enhancing pipe is arranged on the tank body outside, and the bottom is provided with and promotes the distributor of filtrate with air, communicates with the outlet of tank body filtrate below, and top communicates with the filtrate inlet of washer.
Moving bed filter major advantage of the present utility model is to adopt outer cofferdam Overflow drainage structure, and ascending current is kept evenly, has prevented effectively that filter different cross section flow rate of water flow is different and influences the problem of filter effect.By the control of filtrate cleaning solution consumption, can effectively control the clean result of filtrate, therefore can adapt to the filtration requirement of different quality, keep uniform water-flowing amount and effluent quality, promptly the suitable property of the utility model filter is stronger.
Description of drawings
Fig. 1 is a kind of specific embodiment structural representation of the utility model moving bed filter.
The specific embodiment
Below in conjunction with accompanying drawing, further specify the utility model structure of filter characteristics and the method for operation.
The utility model is made up of filtering tank 2, water-locator 21, filter bed 3, rectification body 7, air sparger 10, filtrate riser 9 and 11, gas separator 12, washer 11, filtrate distributor 20, rinse water control valve 19.Filtrate distributor 20 be arranged on washer 11 filtrates outlets under, rectification body 7 is arranged on filtering tank 2 inner bottom part middle positions, filtrate distributor 20 and rectification body 7 can adopt common structure.
Detailed process when carrying out filter operation is: former water (sewage) enters filtering tank 2 from water inlet 1, after water-locator 21 distributes, upwards flow equably, and by filter bed layer 3, pollutants such as the suspension in the water is trapped within the filtrate.Clean water after the filtration enters the clean water storage area 4 on filtering tank top, enters to overflow pool 5 after overflow, discharges through discharge outlet 6.
When former water is filtered, the filtrate that pollutant has been held back in filtering tank 2 bottoms constantly moves downward, filtrate riser 9 and 11 by rectification body 7, filtrate outlet 8, outside, be promoted to the gas separator 12 of filter top, fall to equably through pipeline 13 then and obtain cleaning in the washer 11.Clean the filtrate after the cleaning, after end socket 15 rectifications of washer bottom, from the washer bottom filtrate outlet 16 evenly flow out, and after 20 redistributions of filtrate distributor, be back to the top of filter bed 3, form new filter bed.Cleaning water outlet is discharged by the delivery port on the washer 18.Used compressed air is to introduce by the air sparger 10 that is installed on the filtrate carrier pipe in the filtrate lifting process.
In the filtrate cleaning process, the filtrate from gas separator 12 comes out after pipeline 13 enters washer 11 continuously, relies on the gravity effect, along in 14 dropping process of deflection plate in the scrubbing section, forms waterfall stream.When filtrate falls, clean water from filtering tank top clean water storage area 4, under the water-head effect in filtering tank 2 and washer 11, as the filtrate rinse water, constantly enter from rectification end socket 15, upward to pass through the waterfall stream that filtrate forms between deflection plate, pollutant in the filtrate is carried out, and under the effect of speed-raising plate washer 17, enter the exhalant region on washer top rapidly, flow out through outlet 18.Clean water yield size by valve 19 controls.Filtrate after the cleaning cleaning is discharged through filtrate outlet 16.
Claims (6)
1, a kind of continuous operation type filter, it is characterized in that comprising tank body, overflow cofferdam and drainpipe, water inlet pipe and water-locator, filtrate washer and filtrate circularly enhancing pipe and air sparger, wherein tank body is a tube structure, and the bottom adopts the inclined-plane or the conical surface to form the filtrate outlet; The overflow cofferdam is the sleeve circulus of upper opening, is arranged on top, tank body outside, and the cofferdam height need surpass the tank body upper edge, and drainpipe communicates with the overflow cofferdam; Water inlet pipe is arranged at the tank body middle and lower part, and the part of water inlet pipe in tank body is provided with water-locator; The filtrate washer is arranged on tank body internal upper part middle position; Filtrate circularly enhancing pipe is arranged on the tank body outside, and the bottom is provided with and promotes the distributor of filtrate with air, communicates with the outlet of tank body filtrate below, and top communicates with washer.
2, according to the described filter of claim 1, it is characterized in that described washer top is provided with circulation filtrate inlet and cleaning solution outlet, the cleaning solution outlet communicates with the cleaning solution drainpipe.
3,, it is characterized in that being provided with on the described cleaning solution drainpipe valve of control cleaning solution consumption according to the described filter of claim 2.
4, according to the described filter of claim 2, it is characterized in that described washer bottom center is provided with the filtrate outlet, lower side is provided with the cleaning solution inlet, and the baffling swash plate is set in the washer.
5,, it is characterized in that under the described washer filtrate distributor being set according to the described filter of claim 1.
6,, it is characterized in that described tank body inner bottom part middle position rectification body according to the described filter of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213521 CN2640571Y (en) | 2003-05-31 | 2003-05-31 | Continuous operating filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213521 CN2640571Y (en) | 2003-05-31 | 2003-05-31 | Continuous operating filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2640571Y true CN2640571Y (en) | 2004-09-15 |
Family
ID=34289634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03213521 Expired - Lifetime CN2640571Y (en) | 2003-05-31 | 2003-05-31 | Continuous operating filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2640571Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791498A (en) * | 2010-03-23 | 2010-08-04 | 卢正华 | Valve control filter |
| CN115228156A (en) * | 2021-04-22 | 2022-10-25 | 北京奥博水处理有限责任公司 | Double-bed medium filtering device |
-
2003
- 2003-05-31 CN CN 03213521 patent/CN2640571Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791498A (en) * | 2010-03-23 | 2010-08-04 | 卢正华 | Valve control filter |
| CN101791498B (en) * | 2010-03-23 | 2013-08-14 | 卢正华 | Valve control filter |
| CN115228156A (en) * | 2021-04-22 | 2022-10-25 | 北京奥博水处理有限责任公司 | Double-bed medium filtering device |
| CN115228156B (en) * | 2021-04-22 | 2024-01-30 | 北京奥博水处理有限责任公司 | Double-bed medium filtering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130531 Granted publication date: 20040915 |