JPH0433906U - - Google Patents
Info
- Publication number
- JPH0433906U JPH0433906U JP1990075078U JP7507890U JPH0433906U JP H0433906 U JPH0433906 U JP H0433906U JP 1990075078 U JP1990075078 U JP 1990075078U JP 7507890 U JP7507890 U JP 7507890U JP H0433906 U JPH0433906 U JP H0433906U
- Authority
- JP
- Japan
- Prior art keywords
- water
- casing
- predetermined amount
- tank
- filter sand
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 3
- 239000000706 filtrate Substances 0.000 claims 3
- 239000003344 environmental pollutant Substances 0.000 claims 2
- 231100000719 pollutant Toxicity 0.000 claims 2
- 238000009287 sand filtration Methods 0.000 claims 2
- 239000007788 liquid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4668—Regenerating the filtering material in the filter by moving the filtering element
- B01D24/4689—Displacement of the filtering material to a compartment of the filtering device for regeneration
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
Description
第１図は本考案の一実施例に係る砂ろ過装置の
構造を示す正断面図、第２図は本考案の他の実施
例に係る砂ろ過装置の構造を示す要部正断面図、
第３図は従来の砂ろ過装置の構造を示す正断面図
である。
符号の説明、１……ろ過タンク、２……ろ過層
、３……原水供給路、４……ノズル、５……エア
リフト管（ろ過砂洗浄機構）、５ａ……吸入口、
６……ろ過水、７……流出路、８……ケーシング
、９……排水堰、１０……排水路、１１……洗浄
部、１４，１９……砂ろ過装置、１５……アクチ
ユエータ、１６……電磁流量計、１７……制御装
置、２０，２１……液面計。
FIG. 1 is a front cross-sectional view showing the structure of a sand filter device according to an embodiment of the present invention, and FIG. 2 is a front cross-sectional view of main parts showing the structure of a sand filter device according to another embodiment of the present invention.
FIG. 3 is a front sectional view showing the structure of a conventional sand filter device. Explanation of symbols, 1...Filtration tank, 2...Filtration layer, 3...Raw water supply path, 4...Nozzle, 5...Air lift pipe (filter sand cleaning mechanism), 5a...Suction port,
6...Filtered water, 7...Outflow channel, 8...Casing, 9...Drainage weir, 10...Drainage channel, 11...Washing section, 14, 19...Sand filter device, 15...Actuator, 16 ...Electromagnetic flow meter, 17...Control device, 20, 21...Liquid level gauge.
Claims (1)
下方から上方へ向けて処理用の原水を供給し、該
原水を上記ろ過層を通過させることにより浄化し
て得られたろ過水を上記タンクから流出させ、上
記タンク内に垂設されたろ過砂洗浄機構により上
記ろ過砂の一部を水と共に上方へ運搬して洗浄し
、該ろ過砂から分離された汚濁物を上記ろ過砂洗
浄機構の上部に設けられたケーシング内に導き入
れ、上記ケーシング内に流入する上記ろ過水の一
部の該ケーシング内における水位と上記タンク内
における上記ろ過水の水位との差に基づく圧力差
によつて上記汚濁物を水と共に上記ケーシングに
設けられた堰を通して該ケーシングから排出する
ようにした砂ろ過装置において、 上記堰を駆動してその開度を調節するアクチユ
エータと、 上記ろ過水の濁度を変化させる所量の変化度合
を検出する所量検出手段と、 上記所量検出手段により検出される上記ろ過水
の濁度を変化させる所量の変化度合に基づいて、
上記アクチユエータを制御して上記堰の開度を調
節する制御手段とを具備してなることを特徴とす
る砂ろ過装置。[Scope of Claim for Utility Model Registration] Raw water for treatment is supplied from the bottom to the top of a filtration layer made of filter sand filled in a tank, and the raw water is purified by passing through the filtration layer. The filtered water is discharged from the tank, and a part of the filter sand is transported upward together with water and washed by a filter sand washing mechanism installed vertically in the tank, and the pollutants separated from the filter sand are removed. is introduced into a casing provided at the top of the filter sand cleaning mechanism, and the difference between the water level of a portion of the filtrate water flowing into the casing in the casing and the water level of the filtrate water in the tank is A sand filtration device configured to discharge the pollutants together with water from the casing through a weir provided in the casing by a pressure difference based on the pressure difference, the actuator driving the weir and adjusting its opening; a predetermined amount detection means for detecting the degree of change in the predetermined amount that changes the turbidity of the water; and a predetermined amount detection means that detects the degree of change in the predetermined amount that changes the turbidity of the filtrate water, which is detected by the predetermined amount detection means.
A sand filtration device comprising: control means for controlling the actuator to adjust the opening degree of the weir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990075078U JPH0433906U (en) | 1990-07-13 | 1990-07-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990075078U JPH0433906U (en) | 1990-07-13 | 1990-07-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0433906U true JPH0433906U (en) | 1992-03-19 |
Family
ID=31615337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990075078U Pending JPH0433906U (en) | 1990-07-13 | 1990-07-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0433906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013516316A (en) * | 2010-01-08 | 2013-05-13 | パークソン コーポレーション | Apparatus for treating liquids containing impurities |
-
1990
- 1990-07-13 JP JP1990075078U patent/JPH0433906U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013516316A (en) * | 2010-01-08 | 2013-05-13 | パークソン コーポレーション | Apparatus for treating liquids containing impurities |
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