CN2630230Y - Extracorporeal circulating walnut-shell cleaning filter - Google Patents
Extracorporeal circulating walnut-shell cleaning filter Download PDFInfo
- Publication number
- CN2630230Y CN2630230Y CN 03264519 CN03264519U CN2630230Y CN 2630230 Y CN2630230 Y CN 2630230Y CN 03264519 CN03264519 CN 03264519 CN 03264519 U CN03264519 U CN 03264519U CN 2630230 Y CN2630230 Y CN 2630230Y
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- China
- Prior art keywords
- filtrate
- filter
- water
- backwash
- hay tank
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Abstract
The utility model relates to an external-circulation cleaning nutshell filter, consisting of a filtering tank 1, a backwashing reclaimed water filtering medium separator 2 and a filtering medium recoverer 3 which are connected through a pipeline; the top of filtering tank 1 is provided with a filtering medium blending machine 16, if the bottom water outlet of filtering tank 1 is provided with multi-hole carrying filtering medium steel plate 13 over the river, the filtering medium steel plate 13 will be filled with the coarse grain and heavy quality multi-level filtering medium as a carrying filter bed 14 of the nutshell filtering layer 15.The filter is provided with modern and rational structure and can prevent loss of nutshell filtering medium; the processing and manufacture is simple and convenient, the operation and maintenance is easy.
Description
Relate to the field
The utility model relates to a kind of effluent treatment and filtering device, specifically, is that walnut shell filter is cleaned in extracorporeal circulation.
Background technology
" filtration " is the important process link in the sewage disposal, the height of filtering technique level, and the quality of filter plant quality directly has influence on the state of the art and the wastewater treatment efficiency of entire sewage treatment process.Now, the walnut shell filter that stirs back flushing in filtering tank body is to use more filter plant in the sewage disposal, and is then very general especially for the filtration treatment of oilfield sewage.But in use, its walnut shell filtering material leakage is very outstanding, has made vast sewage disposal worker sense send a telegraph very thorny.The loss of filter leaching material, the deleterious of minister's sewage water filtration does not influence filtered water quality, but also can increase the maintenance cost and the filtrate cost of filter plant.
It is public more effective and thorough by hydrodynamic cleaning than other that the maximum characteristics of walnut shell filter just are to adopt alr mode to carry out back flushing, but thisly stir the back flushing walnut shell filter in filtration in the tank body and also have certain limitation.It is embodied in: (1) walnut shell filtering material light weight, and when stirring, the back flushing in morning will wash away the screen casing up and down or the sieve plate of the hay tank inside that stops its loss together along with current, and this very easily causes the local damage of screen casing or sieve plate and filtrate is run off; (2) because screen casing overcurrent slit is less, when back flushing, very easily, filtrate cause screen pipe opening to stop up because of being subjected to the serious or solid contaminant excessive concentration of oil pollution, open area when backwash water is reclaimed reduces, and backwash pressure increases, thereby causes the screen casing partial fracture and filtrate is run off; (3) processing of screen casing or sieve plate and construction requirement height, as long as a certain part goes wrong (crack or not prison welding), it will cause the loss of whole filtrate.Thus, just become vigour to decrease part as the screen casing of the key part in the walnut shell filter or sieve plate, this also is the key point of problem.For overcoming the existing problem that easily runs off with stirring-type back flushing walnut shell filter filtrate, the American-European Environmental Projects Inc. in Zhejiang has introduced external extracorporeal circulation and has washed the walnut shell filter technology by rubbing with the hands, now in oily state and refinery sewage disposal, dropped into and used, and obtained better effects, wash pump and Scrubbing apparatus by rubbing with the hands to wear-resistant requirements height but this technology is used, main at present by import, cost an arm and a leg; Its automatic control simultaneously requires also very high, is difficult to manually operation, and under the condition that present homemade automatic instrument(s) reaches a standard not enough, the import charges of automatic instrument(s) is also higher; Also having the inner parts that play solid-liquid separation of its Scrubbing apparatus still is screen construction, and the hidden danger that filtrate runs off still exists.
Technology contents
The purpose of this utility model provides a kind of extracorporeal circulation that can prevent effectively that walnut shell filtering material runs off and cleans walnut shell filter.
The utility model is achieved in that and comprises hay tank 1, backwash recycle-water filtrate separator 2, filtrate returns device 3, backwash water outlet 4, filter back water outlet 5, backwash water import 6, water-in 7, overflow port 8, underflow opening 9, power fluid inlet 10, negative pressure suction port 11, mixture export 12, stephanoporate steel plate 13, filter bed 14, filter material layer 15, filtrate agitator 16, hay tank 1, backwash recycle-water filtrate separator 2, filtrate returns device 3 orders and is communicated with, be respectively equipped with filter back water outlet 5 on the hay tank 1, backwash water outlet 4, backwash water import 6, filtrate agitator 16 also is equipped with on hay tank 1 top, be respectively equipped with water-in 7 on the backwash recycle-water filtrate separator 2, overflow port 8, underflow opening 9, filtrate return and are respectively equipped with power fluid inlet 10 on the device 3, negative pressure suction port 11, mixture export 12.
Hay tank 1, backwash recycle-water filtrate separator 2 are communicated with by backwash water outlet 4, water-in 7.
Backwash recycle-water filtrate separator 2, filtrate return device 3 and are communicated with by underflow opening 9, power fluid inlet 10.
Advantage of the present utility model is: the passive interception to filtrate in the past in the time of will stirring back flushing nucleocapsid strainer in back flushing in filtering tank body changes initiatively recovery into, can effectively prevent the loss of walnut shell filtering material, reduce running cost, the work-ing life of prolongation equipment, the stability and the reliability of raising equipment.Simultaneously, can many filter tank use same set of filtrate separator and through the filtrate withdrawer.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Concrete enforcement
As shown in Figure 1, mainly form by the hay tank 1, backwash recycle-water filtrate separator 2 and the filtrate withdrawer 3 that connect by pipeline.It is hesitated to levy and is: hay tank 1 bottom water outlet is contained in porous carrying filtrate steel plate 13, filling is walnut shell filtering material layer 15 for the carrying filter bed 14 of the multistage filtrate of coarse grain heavy as walnut shell filtering material on the carrying filter bed 14 of walnut shell filtering material on carrying filtrate steel plate 13; Filtrate agitator 16 is equipped with at the top of hay tank 1, the middle part of hay tank 1 has walnut shell filtering material and reclaims and backwash water import 6, have liquid import and backwash water outlet 4 on the hay tank 1 top end socket, the foot of hay tank 1 has filter back water outlet 5, backwash recycle-water filtrate separator 2 is the hydrocyclone solid-liquid separator, and it is provided with fluid inlet 7 overflow ports 8 and underflow opening 9.
Walnut shell filtering material reclaims with backwash water import 6 and is positioned at hay tank 1 middle part, and on walnut shell filtering material layer 15.
Claims (5)
1. walnut shell filter is cleaned in extracorporeal circulation, comprise hay tank (1), backwash recycle-water filtrate separator (2), filtrate returns device (3), backwash water outlet (4), filter back water outlet (5), backwash water import (6), water-in (7), overflow port (8), underflow opening (9), power fluid inlet (10), negative pressure suction port (11), mixture export (12), stephanoporate steel plate (13), filter bed (14), filter material layer (15), filtrate agitator (16), it is characterized in that: hay tank (1), backwash recycle-water filtrate separator (2), filtrate returns device (3) and is communicated with by the pipeline order, be respectively equipped with filter back water outlet (5) on the hay tank (1), backwash water outlet (4), backwash water import (6), filtrate agitator (16) also is equipped with on hay tank (1) top, be respectively equipped with water-in (7) on the backwash recycle-water filtrate separator (2), overflow port (8), underflow opening (9), filtrate return and are respectively equipped with power fluid inlet (10) on the device (3), negative pressure suction port (11), mixture export (12).
2. walnut shell filter is cleaned in extracorporeal circulation according to claim 1, it is characterized in that: hay tank (1), backwash recycle-water filtrate separator (2) are communicated with by backwash water outlet (4), water-in (7).
3. walnut shell filter is cleaned in extracorporeal circulation according to claim 1, it is characterized in that: backwash recycle-water filtrate separator (2), filtrate return device (3) and are communicated with by underflow opening (9), power fluid inlet (10).
4. walnut shell filter is cleaned in extracorporeal circulation according to claim 1, it is characterized in that: filtrate returns device (3), hay tank (1) goes out (12), backwash water import (6) connection by mixed solution.
5. walnut shell filter is cleaned in extracorporeal circulation according to claim 1, and it is characterized in that: filter bed (14) is arranged in the hay tank (1), and filter material layer (15) is arranged at the top of filter bed (14), and hay tank (1) bottom adopts stephanoporate steel plate (13) as carrying filtrate plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03264519 CN2630230Y (en) | 2003-06-18 | 2003-06-18 | Extracorporeal circulating walnut-shell cleaning filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03264519 CN2630230Y (en) | 2003-06-18 | 2003-06-18 | Extracorporeal circulating walnut-shell cleaning filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2630230Y true CN2630230Y (en) | 2004-08-04 |
Family
ID=34297341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03264519 Expired - Lifetime CN2630230Y (en) | 2003-06-18 | 2003-06-18 | Extracorporeal circulating walnut-shell cleaning filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2630230Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322910C (en) * | 2004-12-29 | 2007-06-27 | 大庆蓝庆清洗技术有限公司 | Waste filter material recycling and cleaning process of sewage filtering tank |
| CN111675268A (en) * | 2020-07-20 | 2020-09-18 | 山东南洋环境科技有限公司 | Modular multi-unit active filter bed |
| CN113413685A (en) * | 2021-07-12 | 2021-09-21 | 江苏核工业格林水处理有限责任公司 | Filter filler external recovery system |
| CN116078006A (en) * | 2023-02-28 | 2023-05-09 | 浙江华亨实业有限公司 | Mechanical filter based on constant pressure technology |
-
2003
- 2003-06-18 CN CN 03264519 patent/CN2630230Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322910C (en) * | 2004-12-29 | 2007-06-27 | 大庆蓝庆清洗技术有限公司 | Waste filter material recycling and cleaning process of sewage filtering tank |
| CN111675268A (en) * | 2020-07-20 | 2020-09-18 | 山东南洋环境科技有限公司 | Modular multi-unit active filter bed |
| CN113413685A (en) * | 2021-07-12 | 2021-09-21 | 江苏核工业格林水处理有限责任公司 | Filter filler external recovery system |
| CN116078006A (en) * | 2023-02-28 | 2023-05-09 | 浙江华亨实业有限公司 | Mechanical filter based on constant pressure technology |
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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: 20130618 Granted publication date: 20040804 |