JPS63185416A - Method for washing filter medium in filter using floating filter medium - Google Patents
Method for washing filter medium in filter using floating filter mediumInfo
- Publication number
- JPS63185416A JPS63185416A JP1703687A JP1703687A JPS63185416A JP S63185416 A JPS63185416 A JP S63185416A JP 1703687 A JP1703687 A JP 1703687A JP 1703687 A JP1703687 A JP 1703687A JP S63185416 A JPS63185416 A JP S63185416A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- filter medium
- impurities
- raw water
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 7
- 238000005406 washing Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims description 15
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000000706 filtrate Substances 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 13
- 238000007599 discharging Methods 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 abstract 1
- 239000000356 contaminant Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、粒状の浮上濾材を用いな濾過機の濾材が目
詰りしなときの洗滌再生方法の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an improvement in a cleaning and regenerating method when a filter medium of a filter using a granular floating filter medium is not clogged.
（従来の技術）
従来、密封濾過槽内に浮上濾材を装填して下部から原水
を注入し、濾過水を頂部から取出す濾過方法は公知であ
り、また、目詰りした濾材層を再生するために、濾過槽
の底部に設けた攪拌翼によって濾材層を攪拌することも
、例えば、実公昭５６−７２９２号によって公知である
。(Prior Art) Conventionally, a filtration method is known in which a floating filter medium is loaded in a sealed filtration tank, raw water is injected from the bottom, and the filtered water is taken out from the top. It is also known, for example, from Japanese Utility Model Publication No. 56-7292, to stir the filter medium layer using a stirring blade provided at the bottom of the filter tank.
（発明が解決しようとする問題点）
然しなから、従来の装置における濾材の洗滌方法は、前
記実用新案のものも同様であるが、濾材が目詰りすると
原水の供給を止め、底部に設けた翼車によって目詰りし
た濾材全体を攪拌するのみである。従って、目詰り部分
に繊維状の夾雑物を多く含む場合には、この繊維状の夾
雑物が濾材と混合し絡みあって分離不能に落ち入ること
があり、また、攪拌のために大きな動力を必要とする。(Problem to be Solved by the Invention) However, the method for cleaning the filter medium in the conventional device, which is the same as that in the utility model described above, is that when the filter medium becomes clogged, the supply of raw water is stopped and a filter provided at the bottom is used. The impeller simply stirs the entire clogged filter medium. Therefore, if there is a large amount of fibrous impurities in the clogged area, the fibrous impurities may mix with the filter medium and become entangled and fall into the filter, making it impossible to separate them. I need.
これを第１図（イ）〜（ロ）に示す。すなわち、繊維質
の夾雑物を多く含む原水では、第２図（イ）に示すよう
に、濾材層ｌの下面部に夾雑物が集積して目詰り状態と
なっているが、これを攪拌することにょって、第２図（
ロ）に示すように夾雑物を濾過槽内全体に拡散させ、攪
拌を停止した状態では、第１図（ハ）に示すように夾雑
物が濾材中に混入して排出不能になるのである。This is shown in FIGS. 1(a) to 1(b). In other words, in raw water containing a large amount of fibrous contaminants, the contaminants accumulate on the lower surface of the filter layer 1 and become clogged, as shown in Figure 2 (a). In particular, Figure 2 (
If the impurities are diffused throughout the filtration tank as shown in b) and stirring is stopped, the impurities get mixed into the filter medium and cannot be discharged as shown in FIG. 1c.
（問題点を解決するための手段）
そこで、この発明は、濾材が目詰りした場合に洗滌方法
に工夫をすることによって、夾雑物を確実に分離すると
ともに洗滌のための動力も少なくて済むようにしたもの
であって、その要旨とするところは、密封濾過槽内に粒
状の浮上濾材を装填して下部より原水を供給し、浮上濾
材層を通過して得られた濾液を濾過槽の頂部から取出す
ようにした濾過機において、目詰りした濾材を洗滌して
再生するに当り、先ず原水の供給を停止して濾材層の下
面部を攪拌して解きほぐした後、濾過槽内の一部の水を
槽の下部より排水し、次いで原水を下部より注入して濾
材層を攪拌したのち、汚濁水を排水するようにしたもの
である。(Means for Solving the Problems) Therefore, the present invention is designed to reliably separate impurities and reduce the power required for cleaning by devising a cleaning method when the filter medium becomes clogged. The gist is that a granular floating filter material is loaded into a sealed filtration tank, raw water is supplied from the bottom, and the filtrate obtained by passing through the floating filter material layer is poured into the top of the filtration tank. In order to wash and regenerate the clogged filter media in a filter that can be taken out from the tank, first stop the supply of raw water, stir the bottom part of the filter media layer to loosen it, and then remove some of the inside of the filtration tank. Water is drained from the bottom of the tank, raw water is then injected from the bottom to stir the filter layer, and then the polluted water is drained.
この発明を第２図に基づいて詳述すれば、先ず、濾過運
転を継続すると濾材層１は第２図（イ）に示すようにそ
の下面部および下層が目詰りする。この目詰り部分の夾
雑物を濾材から分離するには、第２図（ロ）に示すよう
に攪拌翼２で濾材層１の最下層部分のみを攪拌して濾材
を解きほぐす。この攪拌して解きほぐす厚さは濾材層の
厚さによって若干具なるが普通６ｃｍ程度である。The present invention will be described in detail with reference to FIG. 2. First, when the filtration operation is continued, the lower surface and lower layer of the filter layer 1 become clogged as shown in FIG. 2(A). In order to separate the contaminants in this clogged area from the filter medium, the filter medium is loosened by stirring only the lowest layer of the filter medium layer 1 with the stirring blade 2, as shown in FIG. 2(b). The thickness to be loosened by stirring varies somewhat depending on the thickness of the filter medium layer, but is usually about 6 cm.
この攪拌によって目詰りしていた夾雑物は、第２図（／
今に示すように、濾過槽ｌの底部に拡散する。従って、
この夾雑物の拡散した汚水を排水することによって、夾
雑物を排出することができる。The contaminants that were clogged by this stirring are removed as shown in Figure 2 (/
As shown now, it diffuses into the bottom of the filter tank l. Therefore,
The impurities can be discharged by draining the wastewater in which the impurities have been dispersed.
すなわち、従来は、濾材層の下面や下層には繊維状の夾
雑物が堆積し、全体を攪拌するとこれらが濾材に絡み分
離できなりっなのであるが、この発明では、部分的に瞬
間攪拌することによって確実に分離することができるも
のであり、然も、部分的に短時間の攪拌であるが故に動
力を要しないものである。このようにして、分離しがた
い夾雑物を分離排出したのちに、全体の濾材を洗滌する
には、第２図に）に示すように、底部ｄ、ら洗滌しなが
ら濾材全体を攪拌すればよく、この場合には、目詰りし
て固化した下層が解きほぐされているので小さい動力で
攪拌することが可能である。また、繊維状の夾雑物は先
に排出されているので、これらが濾材中に絡むことがな
く、洗滌汚濁水を排出したのち、原水を注入することで
濾過運転を再開することができるものである。In other words, in the past, fibrous contaminants were deposited on the lower surface and lower layer of the filter medium layer, and if the whole was stirred, they got entangled with the filter medium and could not be separated, but in the present invention, it is possible to instantaneously stir a portion of the filter medium. However, because the stirring is only for a short time in some parts, no power is required. In order to wash the entire filter medium after separating and discharging impurities that are difficult to separate, as shown in Figure 2), stir the entire filter medium while washing from the bottom d. In this case, since the clogged and solidified lower layer has been loosened, it is possible to stir with a small amount of power. In addition, since the fibrous contaminants are discharged first, they do not get entangled in the filter media, and the filtration operation can be restarted by injecting raw water after discharging the washing polluted water. be.
（発明の効果）
このように、この発明は、粒状の浮上濾材を用いた濾過
機において、濾材と夾雑物を確実に分離することができ
る上、用いる動力も少なくて済み、特に繊維状の夾雑物
で目詰りした濾材の洗滌に用いて従来方法に比をみない
卓越した効果を奏するものである。−(Effects of the Invention) As described above, the present invention is capable of reliably separating the filter medium and impurities in a filter using a granular floating filter medium, requires less power, and is particularly effective in removing fibrous contaminants. It is used to clean filter media that is clogged with substances, and has an outstanding effect unmatched by conventional methods. −
第１図（イ）〜（ロ）は、従来の浮上濾材の洗滌方法を
説明するための濾過槽の概略の縦断面図、第２図（イ）
〜に）は、この発明に係る浮上濾材の洗滌方法を説明す
るための濾過槽の概略の縦断面図である。
第２図
炉ゑ林Ｊ 噛清目党杵
看争 １Figures 1 (a) to (b) are schematic vertical cross-sectional views of a filter tank for explaining the conventional cleaning method for floating filter media, and Figure 2 (a)
2) is a schematic vertical sectional view of a filtration tank for explaining a method for washing a floating filter medium according to the present invention. Figure 2 Furo Erin J Kamiseime Party Pestle War 1
Claims (1)
り原水を供給し、浮上濾材層を通過して得られた濾液を
濾過槽の頂部から取出すようした濾過機において、目詰
りした濾材を洗滌して再生するに当り、先ず、原水の供
給を停止して濾材層の下面部を攪拌して解きほぐした後
、濾過槽内の一部の水を槽の下部より排水し、次いで原
水を下部より注入して濾材層を攪拌したのち、汚濁水を
排水することを特徴とする浮上濾材を用いた濾過機にお
ける濾材の洗滌方法。(1) In a filter in which a granular floating filter material is loaded into a sealed filtration tank, raw water is supplied from the bottom, and the filtrate obtained after passing through the floating filter material layer is taken out from the top of the filtration tank, clogging occurs. To wash and regenerate the filter media, first, the supply of raw water is stopped and the lower surface of the filter media layer is stirred and loosened, then some of the water in the filter tank is drained from the bottom of the tank, and then the raw water is A method for cleaning a filter medium in a filter machine using a floating filter medium, characterized by injecting from the lower part to stir the filter medium layer, and then draining contaminated water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1703687A JPS63185416A (en) | 1987-01-27 | 1987-01-27 | Method for washing filter medium in filter using floating filter medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1703687A JPS63185416A (en) | 1987-01-27 | 1987-01-27 | Method for washing filter medium in filter using floating filter medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63185416A true JPS63185416A (en) | 1988-08-01 |
| JPH0355167B2 JPH0355167B2 (en) | 1991-08-22 |
Family
ID=11932770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1703687A Granted JPS63185416A (en) | 1987-01-27 | 1987-01-27 | Method for washing filter medium in filter using floating filter medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63185416A (en) |
-
1987
- 1987-01-27 JP JP1703687A patent/JPS63185416A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0355167B2 (en) | 1991-08-22 |
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