JP4906936B2 - Filter medium cleaning system and filter medium cleaning method - Google Patents
Filter medium cleaning system and filter medium cleaning method Download PDFInfo
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- JP4906936B2 JP4906936B2 JP2010021956A JP2010021956A JP4906936B2 JP 4906936 B2 JP4906936 B2 JP 4906936B2 JP 2010021956 A JP2010021956 A JP 2010021956A JP 2010021956 A JP2010021956 A JP 2010021956A JP 4906936 B2 JP4906936 B2 JP 4906936B2
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- 238000004140 cleaning Methods 0.000 title claims description 88
- 238000000034 method Methods 0.000 title claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 152
- 238000005406 washing Methods 0.000 claims description 52
- 230000007423 decrease Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 description 14
- 239000007924 injection Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Description
本発明は、濾材を繰り返し使用するために、使用済みの濾材を洗浄して再生させる濾材の洗浄システム及び濾材の洗浄方法に関するものである。 The present invention relates to a filter medium cleaning system and a filter medium cleaning method for cleaning and regenerating a used filter medium in order to repeatedly use the filter medium.
例えば、濾過塔の濾過器あるいはろ過池の濾材が古くなると、ろ過機能が低下するために、濾材を入れ替える必要が生じる。
しかし、古い濾材は、法律上産業廃棄物とみなされ、それを処理するのに多額の廃棄処理の費用が必要となるうえ、新しい濾材の購入コストも高くなるという問題がある。
そこで、使用済みの濾材を洗浄して再生することにより、上記問題点を解決するものとして特許文献１に示す濾材の洗浄装置を本出願人が先に提案している。
For example, when the filter medium of the filter tower or the filter medium of the filter pond becomes old, it is necessary to replace the filter medium because the filtration function is lowered.
However, the old filter medium is legally regarded as industrial waste, and there is a problem that a large amount of waste disposal costs are required to process the old filter medium, and the purchase cost of a new filter medium is increased.
Therefore, the present applicant has previously proposed a filter medium cleaning device shown in Patent Document 1 as a solution to the above-mentioned problems by cleaning and regenerating used filter media.
ところが、洗浄される古い濾材の汚れの度合い（濾材に付着した汚れの量や質）が一定でないことに加えて、濾材の材質（例えば材質の硬軟）等が多岐にわたっていることから、上記の先の提案にかかる濾材の洗浄装置では、充分に対応することがむずかしいという問題があった。
斯くして洗浄むらがある濾材や、汚れが再付着した濾材を使用すると、その濾過機能や耐久性が低下してしまうという問題があり、材質がやわらかいものの場合には、洗浄しながら流送するときに割れてしまい、再使用することができないという問題があった。
However, in addition to the fact that the degree of dirt (the amount and quality of dirt attached to the filter medium) of the old filter medium to be washed is not constant, the material of the filter medium (for example, the hardness of the material) varies widely, However, the filter media cleaning apparatus according to this proposal has a problem in that it is difficult to respond sufficiently.
Thus, there is a problem that the filter function and durability will be deteriorated if the filter medium with uneven cleaning or the filter medium on which dirt is reattached is used. There was a problem that it sometimes cracked and could not be reused.
本発明は、上記問題点に鑑みて提案されたもので、その目的とするところは、濾材の質及びこれ付着している汚れの質にあわせて確実に且つ均一に除去して洗浄することができる濾材の洗浄システムならびに濾材の洗浄方法を提供することができるようにすることを目的とするものである。 The present invention has been proposed in view of the above-mentioned problems, and the object of the present invention is to reliably and uniformly remove and clean the filter in accordance with the quality of the filter medium and the quality of the dirt attached thereto. An object of the present invention is to provide a filter medium cleaning system and a filter medium cleaning method.
上記目的を達成するために提案されたもので、本発明の濾材の洗浄システムは、貯水部と、貯水部の水を吸引して加圧する加圧ポンプと、複数の分級ステージを有する分級部分と、洗浄される濾材を貯留する濾材貯留部と、前記加圧ポンプで加圧された高圧の洗浄水を噴射した負圧形成管内に形成された負圧で濾材貯留部の濾材を吸引し分級部分に送給するときに濾材を洗浄する濾材吸引用ジェットポンプとを備え、濾材吸引用ジェットポンプに加圧ポンプからの高圧の洗浄水を供給する主圧力水供給路を分岐し、分岐された副圧力水供給路を補助ジェットポンプに連結し、当該補助ジェットポンプの吐出口を濾材吸引用ジェットポンプの吐出口と分級部分とを連結する送給路を介して、若しくは直接分級部分に連通させるとともに、前記主圧力水供給路及び副圧力水供給路に高圧の洗浄水の流水量を制御する水量制御手段を設けたことを最も主要な特徴とするものである。 In order to achieve the above object, the filter medium cleaning system of the present invention includes a water storage part, a pressure pump that sucks and pressurizes water in the water storage part, and a classification part having a plurality of classification stages. A filter medium storage part for storing the filter medium to be cleaned, and a classification part by sucking the filter medium in the filter medium storage part with a negative pressure formed in a negative pressure forming pipe sprayed with high-pressure washing water pressurized by the pressure pump A filter medium suction jet pump for cleaning the filter medium when the filter medium is fed to the filter medium, and a main pressure water supply path for supplying high-pressure wash water from the pressure pump to the filter medium suction jet pump is branched. The pressure water supply path is connected to the auxiliary jet pump, and the discharge port of the auxiliary jet pump is communicated to the classification part via the feed path connecting the discharge port of the filter medium suction jet pump and the classification part or directly. The main It is an most important feature that the Chikaramizu supply path and the sub-pressure water supply passage provided with a water amount controlling means for controlling the water flow of high-pressure washing water.
また、本発明にかかる濾材の洗浄システムでは、濾材吸引用ジェットポンプ及び補助ジェットポンプが、加圧ポンプで加圧された高圧の洗浄水を噴射する噴射ノズルと、この噴射ノズルから噴射されるジェット流の下流側に負圧形成管若しくは混合気管を介して負圧形成管を設けて形成したことや、水量制御手段が開閉弁若しくは流量調節弁であることも特徴とするものである In the filter medium cleaning system according to the present invention, the filter medium suction jet pump and the auxiliary jet pump inject the high-pressure cleaning water pressurized by the pressure pump, and the jet injected from the injection nozzle. It is also characterized in that it is formed by providing a negative pressure forming pipe via a negative pressure forming pipe or a gas mixture pipe on the downstream side of the flow, and that the water amount control means is an on-off valve or a flow control valve.
次に、本発明にかかる濾材の洗浄方法は、加圧ポンプで貯水部の水を吸引して加圧し、加圧された高圧の洗浄水を負圧形成管内に噴射することにより、負圧形成管内に形成された負圧で濾材貯留部の濾材を吸引し、分級部分に送給する間に濾材を洗浄する濾材の洗浄方法において、濾材吸引用ジェットポンプに加圧ポンプからの高圧の洗浄水を供給する主圧力水供給路を分岐し、分岐された副圧力水供給路を補助ジェットポンプに連結し、当該補助ジェットポンプの吐出口を濾材吸引用ジェットポンプの吐出口と分級部分とを連結する送給路を介して、若しくは直接分級部分に連通させ、前記主圧力水供給路及び副圧力水供給路に高圧の洗浄水の水量を制御する水量制御手段を設け、洗浄する濾材を強力に洗浄する場合は、副圧力水供給路に高圧の洗浄水の水量を停止若しくは減少させて濾材吸引用ジェットポンプに主圧力水供給路から高圧の洗浄水を供給して強力に洗浄するとともに、優しく洗浄する場合には濾材吸引用ジェットポンプと補助ジェットポンプとに高圧の洗浄水を供給することにより濾材吸引用ジェットポンプへの洗浄水の供給量を減少させ、この濾材吸引用ジェットポンプへの洗浄水の供給量の減少にともなって濾材吸引用ジェットポンプから分級部分への送給力が減少するのを補助ジェットポンプにより補償して洗浄された濾材を分級部分に送給するようにしたことを最も主要な特徴とするものである。 Next, the method for cleaning a filter medium according to the present invention is to form a negative pressure by sucking and pressurizing water in a water storage section with a pressure pump, and injecting the pressurized high-pressure cleaning water into a negative pressure forming pipe. In the filter medium cleaning method, the filter medium is suctioned by the negative pressure formed in the pipe and the filter medium is washed while being fed to the classification section. In the filter medium suction jet pump, high-pressure washing water from a pressure pump is supplied to the filter medium suction jet pump. The main pressure water supply path for supplying water is branched, the branched sub pressure water supply path is connected to the auxiliary jet pump, and the discharge port of the auxiliary jet pump is connected to the discharge port of the filter pump for sucking the filter medium and the classification portion The water supply control means for controlling the amount of high-pressure washing water is provided in the main pressure water supply passage and the sub-pressure water supply passage through the supply passage or directly connected to the classification portion, and the filter medium to be washed is powerfully provided. When cleaning, use the auxiliary pressure water supply channel. Stop or reduce the amount of pressure washing water and supply high-pressure washing water from the main pressure water supply path to the filter medium suction jet pump to perform strong washing. By supplying high-pressure washing water to the auxiliary jet pump, the amount of washing water supplied to the filter medium suction jet pump is reduced, and as the amount of washing water supplied to this filter medium suction jet pump decreases, the filter medium suction is reduced. The main feature is that the filter medium cleaned by the auxiliary jet pump is compensated for the reduction of the feeding force from the jet pump to the classifying part and is fed to the classifying part.
本発明にかかる濾材の洗浄装置及び濾材の洗浄方法によれば、濾材吸引用ジェットポンプに加圧ポンプからの高圧の洗浄水を供給する主圧力水供給路を分岐し、分岐された副圧力水供給路を補助ジェットポンプに連結し、当該補助ジェットポンプの吐出口を濾材吸引用ジェットポンプの吐出口と分級部分とを連結する送給路を介して、若しくは直接分級部分に連通させ、前記主圧力水供給路及び副圧力水供給路に高圧の洗浄水の流水量を制御する水量制御手段を設けるとともに、副圧力水供給路に高圧の洗浄水の水量を停止若しくは減少させて濾材吸引用ジェットポンプに主圧力水供給路から高圧の洗浄水を供給して強力に洗浄し、濾材吸引用ジェットポンプと補助ジェットポンプとに高圧の洗浄水を供給して濾材吸引用ジェットポンプへの洗浄水の供給量を減少させ、濾材吸引用ジェットポンプへの洗浄水の供給量の減少にともなって濾材吸引用ジェットポンプから分級部分への送給力が減少するのを補助ジェットポンプにより補償することにより、濾材をソフトに洗浄することができる。 According to the filter medium cleaning device and the filter medium cleaning method of the present invention, the main pressure water supply path for supplying the high pressure cleaning water from the pressure pump to the filter medium suction jet pump is branched, and the sub pressure water branched. The supply path is connected to the auxiliary jet pump, and the discharge port of the auxiliary jet pump is connected to the classification part through a feed path connecting the discharge port of the filter medium suction jet pump and the classification part, or directly to the classification part. The pressure water supply passage and the sub-pressure water supply passage are provided with a water amount control means for controlling the flow amount of the high-pressure washing water, and the high-pressure washing water is stopped or reduced in the sub-pressure water supply passage so as to suck the filter medium suction jet. Supply high-pressure washing water from the main pressure water supply path to the pump to perform strong washing, and supply high-pressure washing water to the filter medium suction jet pump and auxiliary jet pump to supply the filter medium suction jet pump. By reducing the supply amount of purified water and compensating the decrease in the supply capacity of the filter medium suction jet pump from the filter medium suction jet pump to the classification part with the decrease in the supply amount of washing water to the filter medium suction jet pump The filter medium can be washed softly.
これにより、濾材の質及びこれ付着している汚れの質にあわせて確実に且つ均一に除去して洗浄することができる利点がある。 Accordingly, there is an advantage that the filter medium can be reliably removed and washed in accordance with the quality of the filter medium and the quality of dirt attached thereto.
以下、本発明の濾材の洗浄システム及び濾材の洗浄方法にかかる最も好ましい実施の形態を図面に基づいて説明する。
図１は濾材を洗浄して再利用するための濾材の洗浄システムの概略図であって、図中符号１は濾材の洗浄システムを全体的に示す。
なお、本発明にいう濾材とは例えば天然石はもとより、イオン交換を行うイオン交換塔に収納して使用される粒状のイオン交換等樹脂をも包含するものである。
Hereinafter, the most preferred embodiment according to the filter medium cleaning system and the filter medium cleaning method of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic view of a filter medium cleaning system for cleaning and reusing a filter medium. Reference numeral 1 in the drawing generally indicates the filter medium cleaning system.
The filter medium referred to in the present invention includes, for example, natural stone as well as granular ion exchange resin used in an ion exchange tower for performing ion exchange.
この濾材のリサイクルシステム１は、給水槽２と、給水槽２から給水される貯水部３と、洗浄用濾材貯留部４と、洗浄された濾材を粒径に応じて複数に分級するステージを有する分級洗浄部分５と、分級された細かな濾材をさらに洗浄するシャワーリング洗浄部６と、洗浄用濾材貯留部４から濾材７を洗浄しながら前記洗浄部分５や所望する場所等に送給するためのジェットポンプ８ａ、８ｂ、８ｃとを備えてなり、これらの各ジェットポンプ８ａ、８ｂ、８ｃは、ジェットポンプ８ａは濾材吸引用ジェットポンプ、ジェットポンプ８ｂは補助ジェットポンプ、ジェットポンプ８ｃは排出用ジェットポンプとなっている。
給水槽２には、ここに貯留した水９を洗浄用濾材貯留部４及び貯水部３に送水管１０で給水するための送給用ポンプ１１が設けられている。
貯水部３には、給水槽２から給水された水と後述するシャワーリング洗浄部６からの水を吸引して加圧し、濾材吸引用ジェットポンプ８ａ及び補助ジェットポンプ８ｂに送給する加圧ポンプ１２ならびに排出用ジェットポンプ８ｃに送給する給水ポンプ１３を設けてある。
This filter medium recycling system 1 has a water supply tank 2, a water storage part 3 supplied with water from the water supply tank 2, a cleaning filter medium storage part 4, and a stage for classifying the cleaned filter medium into a plurality according to the particle size. In order to feed the classified cleaning portion 5, the shower ring cleaning section 6 for further cleaning the classified fine filter medium, and the cleaning section 5 or a desired place while cleaning the filter medium 7 from the cleaning filter medium storage section 4. The jet pumps 8a, 8b, and 8c are provided with the jet pumps 8a, 8b, and 8c. The jet pump 8a is a jet pump for suctioning a filter medium, the jet pump 8b is an auxiliary jet pump, and the jet pump 8c is for discharge. It is a jet pump.
The water supply tank 2 is provided with a supply pump 11 for supplying water 9 stored therein to the cleaning filter medium storage unit 4 and the water storage unit 3 through a water supply pipe 10.
The water storage section 3 is a pressure pump that sucks and pressurizes water supplied from the water tank 2 and water from a shower ring cleaning section 6 to be described later, and supplies the pressurized water to the filter medium suction jet pump 8a and the auxiliary jet pump 8b. 12 and a water supply pump 13 for feeding to the discharge jet pump 8c.
分級部分５は第１分級洗浄部５ａと第２分級洗浄部５ｂとからなる。
第１分級洗浄部５ａには、濾材７が投入される投入口１４と、この投入口１４に投入された濾材７を粒径の小さなものから順に複数段に分級するもので、起震手段１５で振動する第１分級ケーシング１６内にはメッシュが異なる複数段階のふるい（図示せず）を設けてあり、この第１分級ケーシング１６には洗浄水を噴射す洗浄水ノズル１７が取り付けられている。
また、各ふるいの下方には分級された洗浄済みの濾材７を取りだす漏斗状のシュータ１８と粒径の大きな側のシュータ１８の下方には集積用のボックス１９が設けられている。
そして、第１分級洗浄部５ａの出口２０側に第２分級洗浄部５ｂが設けられており、この第２分級洗浄部５ｂは、第１分級洗浄部５ａと略同様に構成されている。
The classification portion 5 includes a first classification cleaning unit 5a and a second classification cleaning unit 5b.
The first classification cleaning unit 5a classifies the input port 14 into which the filter medium 7 is input and the filter medium 7 input into the input port 14 into a plurality of stages in descending order of particle size. In the first classification casing 16 that vibrates at a plurality of stages, sieves (not shown) having different meshes are provided, and a cleaning water nozzle 17 for injecting cleaning water is attached to the first classification casing 16. .
Further, a funnel-like shooter 18 for taking out the classified and cleaned filter media 7 is provided below each sieve, and a collecting box 19 is provided below the shooter 18 on the larger particle size side.
And the 2nd classification washing | cleaning part 5b is provided in the exit 20 side of the 1st classification washing | cleaning part 5a, and this 2nd classification washing | cleaning part 5b is comprised substantially the same as the 1st classification washing | cleaning part 5a.
すなわち、起震手段１５で振動する第２分級ケーシング２１内にメッシュが異なる複数段階のふるい（図示せず）を設けてあり、第２分級ケーシング２１の上方には洗浄水を噴射す洗浄水ノズル２２が配設されている。
各ふるいの下方及び出口２０部分には分級された洗浄済みの濾材を取りだす漏斗状のシュータ２４が設けられ、シュータ２４の下方には回収用ボックス２５が設けられている。
図中符号２６は、洗浄水ノズル１７に給水する配管２７に設けられた開閉バルブ、符号２８は固定された配管２７と振動する第１分級ケーシング１６の振動が配管２７に伝わるのを防止する防震具である。
That is, a plurality of stages of sieves (not shown) having different meshes are provided in the second classifying casing 21 that vibrates by the earthquake generating means 15, and a cleaning water nozzle that jets cleaning water above the second classifying casing 21. 22 is disposed.
A funnel-like shooter 24 is provided below each sieve and at the outlet 20 portion to take out the filtered filter material that has been classified, and a collection box 25 is provided below the shooter 24.
In the figure, reference numeral 26 is an open / close valve provided in a pipe 27 for supplying water to the cleaning water nozzle 17, and reference numeral 28 is a vibration proofing that prevents the vibration of the fixed classification 27 and the vibrating first classification casing 16 from being transmitted to the pipe 27. It is a tool.
上記貯水部３を形成する貯水部用ケーシング２９には、第２分級洗浄部５ｂで分離された水を貯留する排水貯留部３０と、後述する濾材の洗浄部からの洗浄済みの濾材を水洗するシャワーリング洗浄部６が形成されている。
そして、第１分級洗浄部５ａで分級された最も細かい粒径の濾材は、シャワーリング洗浄部６に送られ、ここで洗浄されて前記集積用のボックス３１に回収されるとともに、分離された水分は排水貯留部３０から排水ポンプ３２で外部に排水されるようになっている。
上記加圧ポンプ１２で加圧された高圧水は、前記濾材吸引用ジェットポンプ８ａ及び補助ジェットポンプ８ｂに送給される。
この濾材吸引用ジェットポンプ８ａ、補助ジェットポンプ８ｂ及び排出用ジェットポンプ８ｃの夫々の構造は、図２に示すようになっている。
The water storage section casing 29 forming the water storage section 3 is washed with a drainage storage section 30 for storing the water separated by the second classification cleaning section 5b and a filter medium that has been washed from the filter medium cleaning section described later. A shower ring cleaning section 6 is formed.
The finest particle size filter medium classified by the first classification cleaning unit 5a is sent to the shower ring cleaning unit 6, where it is cleaned and collected in the collecting box 31 and separated moisture. Is drained from the drainage reservoir 30 by the drainage pump 32.
The high-pressure water pressurized by the pressure pump 12 is fed to the filter medium suction jet pump 8a and the auxiliary jet pump 8b.
The structures of the filter medium suction jet pump 8a, the auxiliary jet pump 8b, and the discharge jet pump 8c are as shown in FIG.
図２に示すように、加圧ポンプ１２で加圧された高圧の洗浄水を噴射する小径で短寸円筒状の噴射ノズル３３と、この噴射ノズル３３から噴射されるジェット流３４の下流側に大径で有底の負圧形成管３５を配設し、前記噴射ノズル３３はこの負圧形成管３５の底部３６の中心部に位置させるとともに、噴射ノズル３３寄りの負圧形成管３５の一側に吸引口３７を開口させて構成してある。 As shown in FIG. 2, a small-diameter, short cylindrical injection nozzle 33 that injects high-pressure washing water pressurized by the pressurizing pump 12, and a downstream side of the jet stream 34 injected from the injection nozzle 33. A negative-pressure forming pipe 35 having a large diameter and a bottom is disposed, and the injection nozzle 33 is positioned at the center of the bottom portion 36 of the negative-pressure formation pipe 35, and one of the negative-pressure formation pipes 35 near the injection nozzle 33. A suction port 37 is opened on the side.
本例の濾材吸引用ジェットポンプ８ａ、補助ジェットポンプ８ｂ及び排出用ジェットポンプ８ｃは上述ように噴射ノズル３３を負圧形成管３５の底部３６の中心部に設けるようにしてあるが、こうしたものに限られず、図３に示すように負圧形成管３５の底部３６に噴射ノズル３３の口径よりも大径で、負圧形成管３５の内径より小径の円筒状で底部の近傍に吸気口３８を有する混合気管３９を設け、この混合気管３９の底部中央に噴射ノズル３３を設けた混気式のジェットポンプにすることもできる。 In the filter jet suction pump 8a, auxiliary jet pump 8b, and discharge jet pump 8c of this example, the injection nozzle 33 is provided at the center of the bottom 36 of the negative pressure forming pipe 35 as described above. As shown in FIG. 3, a suction port 38 is provided in the vicinity of the bottom in a cylindrical shape having a diameter larger than the diameter of the injection nozzle 33 at the bottom 36 of the negative pressure forming pipe 35 and smaller than the inner diameter of the negative pressure forming pipe 35. It is also possible to provide an air-fueled jet pump in which the air-fuel mixture tube 39 is provided and the injection nozzle 33 is provided in the center of the bottom of the air-fuel mixture tube 39.
濾材吸引用ジェットポンプ８ａ、補助ジェットポンプ８ｂは、図１に示すように貯水部３に設けられた加圧ポンプ１２で吸引されて加圧された高圧の洗浄水を濾材吸引用ジェットポンプ８ａに供給する主圧力水供給路３９から副圧力水供給路４０を分岐し、分岐された副圧力水供給路４０に補助ジェットポンプ８ｂを設けるとともに、この補助ジェットポンプ８ｂの吐出口４２を濾材吸引用ジェットポンプ８ａの吐出口４１と第１分級洗浄部５ａとを連結する送給路４３を介して第１分級洗浄部５ａに連通させ、上記主圧力水供給路３９及び副圧力水供給路４０には高圧の洗浄水の水量を制御する流量調節弁からなる水量制御手段４４ａ、４４ｂを設けて形成されている。
尚、補助ジェットポンプ８ｂの吐出口４２を、濾材吸引用ジェットポンプ８ａの吐出口４１と第１分級洗浄部５ａとを連結する送給路４３を介して、第１分級洗浄部５ａに連通させる構成を、補助ジェットポンプ８ｂの吐出口４２を第１分級洗浄部５ａに直接連通させる構成にすることもできる。
The filter medium suction jet pump 8a and the auxiliary jet pump 8b, as shown in FIG. 1, supply high-pressure washing water sucked and pressurized by the pressure pump 12 provided in the water storage section 3 to the filter medium suction jet pump 8a. The auxiliary pressure water supply path 40 is branched from the main pressure water supply path 39 to be supplied, the auxiliary jet pump 8b is provided in the branched auxiliary pressure water supply path 40, and the discharge port 42 of the auxiliary jet pump 8b is used for suction of the filter medium. The discharge port 41 of the jet pump 8a and the first classified cleaning unit 5a are connected to the first classified cleaning unit 5a via a feed path 43, and the main pressure water supply path 39 and the sub pressure water supply path 40 are connected to the first classified cleaning unit 5a. Is formed by providing water amount control means 44a, 44b comprising flow control valves for controlling the amount of high-pressure washing water.
The discharge port 42 of the auxiliary jet pump 8b communicates with the first classified cleaning unit 5a via a feed path 43 that connects the discharge port 41 of the filter medium suction jet pump 8a and the first classified cleaning unit 5a. The configuration may be such that the discharge port 42 of the auxiliary jet pump 8b communicates directly with the first classified cleaning unit 5a.
上記のように構成された濾材７のリサイクルシステム１の作用を説明する。
先ず、通常の硬質の濾材７の周面に付着している頑固な汚れ等を洗浄・除去する場合には、主圧力水供給路３９の水量制御手段４４ａの流量制御弁を開き、副圧力水供給路４０の水量制御手段４４ｂの流量制御弁を閉じて、貯水部３の加圧ポンプ１２を起動させる。
この貯水部３の加圧ポンプ１４の起動により貯水部３の水が吸引されて加圧され、高圧の圧力水のすべてが主圧力水供給路から濾材吸引用ジェットポンプ８ａの噴射ノズル３３に供給される。
The operation of the recycling system 1 for the filter medium 7 configured as described above will be described.
First, when cleaning and removing stubborn dirt adhering to the peripheral surface of the normal hard filter medium 7, the flow rate control valve of the water amount control means 44a of the main pressure water supply passage 39 is opened, and the sub pressure water The flow rate control valve of the water amount control means 44b of the supply path 40 is closed, and the pressurizing pump 12 of the water storage unit 3 is activated.
When the pressurizing pump 14 of the water storage unit 3 is activated, the water in the water storage unit 3 is sucked and pressurized, and all of the high-pressure water is supplied from the main pressure water supply path to the injection nozzle 33 of the jet pump 8a for filter medium suction. Is done.
噴射ノズル３３から負圧形成管３５内に向けて噴射された高圧の洗浄水は、負圧形成管３５の中を徐々に広がるジェット流３４となってと吐出口４１に向って飛翔し、負圧形成管の噴射ノズル３３側部分（吸引口３７側部分）に負圧が形成される。
この負圧の形成は、負圧形成管３５の中を徐々に広がるジェット流３４は飛翔する無数の水滴４５となっており、図４に示すようにこの飛翔する水滴４５の前半部分は圧力が高く、後半部分は点描で示す部分の圧力が低くなる。
この圧力が低くなった無数の部分が合一して負圧形成管３５内いっぱいに広がった状態で吐出口４１側に流送すると、ここに図２及び図３の網目４６で示すような、あたかも吐出口４１側に向って作用するような連続する仮想ピストンが形成され、負圧形成管３５の噴射ノズル３３側部分（吸引口３７側部分）に負圧が形成されることになる。
The high-pressure washing water jetted from the jet nozzle 33 into the negative pressure forming pipe 35 flies toward the discharge port 41 when it becomes a jet stream 34 that gradually spreads in the negative pressure forming pipe 35, and is negative. A negative pressure is formed at the injection nozzle 33 side portion (suction port 37 side portion) of the pressure forming tube.
The formation of this negative pressure is an infinite number of water droplets 45 flying in the jet stream 34 that gradually spreads in the negative pressure forming tube 35. As shown in FIG. High, and the pressure in the part shown by stippling is low in the second half.
When the countless portions where the pressures are lowered are united and spread to the discharge port 41 side in a state of being fully spread in the negative pressure forming pipe 35, as shown by the mesh 46 in FIGS. 2 and 3, A continuous virtual piston that acts toward the discharge port 41 side is formed, and a negative pressure is formed at the injection nozzle 33 side portion (suction port 37 side portion) of the negative pressure forming pipe 35.
負圧形成管３５の噴射ノズル３３側部分（吸引口３７側部分）に負圧が形成されると、この負圧で洗浄用濾材貯留部４の濾材７を吸引口３７から負圧形成管３５内に吸引し、ジェット流３４とともに吐出口４１に流送される。
この流送時に負圧形成管３５内の濾材７は、図５に示すように濾材７同士が擦れあい、表面に付着している汚れ等は剥がれたり、周囲を高圧のジェット流３４で洗浄されたりして強力に洗浄された後、吐出口４１から送給路４３を介して第１分級洗浄部５ａに送られて分級される。
斯くして、第１分級洗浄部５ａで分給された濾材７は、シュータ１８から集積用のボックス１９に回収されて再使用される。
尚、図１中符号４７はシャワーリング洗浄部６で濾材７から分離されて沈殿する汚れ等の取り出し部であって、開閉弁４８が開かれると１３からの圧力水が排出用ジェットポンプ８ｃに供給され、沈殿していたヘドロ状の汚れ等は、この排出用ジェットポンプ８ｃの駆動により吸出され、排出用ボックス４９に放出される。
When a negative pressure is formed at a portion of the negative pressure forming pipe 35 on the side of the injection nozzle 33 (side portion of the suction port 37), the negative pressure forming pipe 35 is removed from the suction port 37 by the negative pressure. It is sucked in and sent to the discharge port 41 together with the jet stream 34.
At the time of this flow, the filter medium 7 in the negative pressure forming pipe 35 is rubbed against the filter medium 7 as shown in FIG. 5, and the dirt adhering to the surface is peeled off or the surroundings are washed with a high-pressure jet stream 34. Then, after being washed strongly, it is sent from the discharge port 41 to the first classification washing unit 5a via the feed path 43 and classified.
Thus, the filter medium 7 dispensed by the first classification cleaning unit 5a is collected from the shooter 18 to the accumulation box 19 and reused.
Reference numeral 47 in FIG. 1 denotes a take-out portion for dirt and the like that is separated from the filter medium 7 by the shower ring cleaning portion 6 and settles. When the on-off valve 48 is opened, the pressure water from 13 is supplied to the discharge jet pump 8c. The sludge and the like that have been supplied and settled are sucked out by the drive of the discharge jet pump 8 c and discharged into the discharge box 49.
因みに、濾材吸引用ジェットポンプ８ａを図３に示すような混気式ジェットポンプにすると、噴射ノズル３３から噴射されたジェット流３４が混合気管３９内でその周囲に気体（空気）が混入された混気ジェット流３４となって負圧形成管３５内を流走するので、混入された気体が、負圧形成管３５の内周面とここを流走する混気ジェット流３４とのインシュレータとなり混気ジェット流３４の流速の低下を可及的に防止することができる。
これにより、さらに多量の濾材７を強力に洗浄することができる。
Incidentally, when the filter medium suction jet pump 8a is an air-mixing type jet pump as shown in FIG. 3, the jet stream 34 injected from the injection nozzle 33 is mixed with gas (air) in the air-fuel mixture tube 39 around it. Since the mixed gas jet 34 flows in the negative pressure forming pipe 35, the mixed gas becomes an insulator between the inner peripheral surface of the negative pressure forming pipe 35 and the mixed gas jet 34 flowing there. A reduction in the flow velocity of the mixed gas jet 34 can be prevented as much as possible.
Thereby, a larger amount of the filter medium 7 can be washed strongly.
次に、濾材７の材質が比較的軟らかいような場合や、濾材７の材質は硬くても付着している汚れ等が軟らかく、洗浄時に濾材７が欠けたり壊れたりするのを防止して濾材７の回収率（再使用可能な割合）を高めるために、濾材７をソフトで優しく洗浄するような場合には、上記した通常の硬質の濾材７の周面に付着している頑固な汚れ等を洗浄・除去する場合と同様に、主圧力水供給路３９の水量制御手段４４ａの流量制御弁を開くとともに、副圧力水供給路４０の水量制御手段４４ｂの流量制御弁も開き、貯水部３の加圧ポンプ１４を起動させて両供給路に加圧ポンプ１４からの高圧の洗浄水を供給する。 Next, when the material of the filter medium 7 is relatively soft, or even when the filter medium 7 is hard, the attached dirt is soft, so that the filter medium 7 is prevented from being broken or broken during cleaning. In order to increase the recovery rate (reusable ratio) of the filter medium 7 when the filter medium 7 is gently and gently washed, the stubborn dirt adhering to the peripheral surface of the normal hard filter medium 7 described above is removed. As in the case of cleaning / removal, the flow control valve of the water amount control means 44a of the main pressure water supply passage 39 is opened and the flow control valve of the water amount control means 44b of the sub pressure water supply passage 40 is also opened. The pressurizing pump 14 is activated to supply high-pressure washing water from the pressurizing pump 14 to both supply paths.
高圧の洗浄水を濾材吸引用ジェットポンプ８ａと補助ジェットポンプ８ｂとに供給することにより、濾材吸引用ジェットポンプ８ａへの高圧の洗浄水の供給量が減少し、その圧力も低下することから、濾材吸引用ジェットポンプ８ａの負圧形成管３５乃至その吐出口４１から第１分級洗浄部５ａで処理される濾材７の処理量は減少するものの、ソフトで優しく、濾材７を壊したりすることなく、洗浄することができる。
そして、濾材吸引用ジェットポンプ８ａへの洗浄水の供給量の減少にともなって、濾材吸引用ジェットポンプ８ａから第１分級洗浄部５ａへの送給力が減少することから、この送給力に低下を、補助ジェットポンプ８ｂを駆動させることにより、補助ジェットポンプ８ｂの吸引口３７から吸引し、その吐出口４２から第１分級洗浄部５ａに送給するので、ソフトで優しく洗浄された濾材７を確実に第１分級洗浄部５ａに送給することができるのである。
By supplying high-pressure washing water to the filter medium suction jet pump 8a and the auxiliary jet pump 8b, the amount of high-pressure washing water supplied to the filter medium suction jet pump 8a is reduced and the pressure is also reduced. Although the processing amount of the filter medium 7 processed by the first classification cleaning unit 5a from the negative pressure forming pipe 35 of the filter medium suction jet pump 8a or its discharge port 41 is reduced, it is soft and gentle, without breaking the filter medium 7. Can be washed.
As the amount of washing water supplied to the filter medium suction jet pump 8a decreases, the feed force from the filter medium suction jet pump 8a to the first classification washing unit 5a decreases. By driving the auxiliary jet pump 8b, the suction is carried out from the suction port 37 of the auxiliary jet pump 8b, and the discharge port 42 is fed to the first classification cleaning unit 5a. It can be fed to the first classification cleaning unit 5a.
上述したように、水量制御手段４４ａ、４４ｂで主圧力水供給路３９及び副圧力水供給路４０への高圧の洗浄水の供給量を調整することにより、洗浄処理量や濾材７の材質、さらには汚れ具合等の種々の要因に応じて洗浄の態様を変更することができる利点がある。
尚、上記実施の形態では、主圧力水供給路３９及び副圧力水供給路４０には高圧の洗浄水の水量を制御する水量制御手段４４ａ、４４ｂを流量制御弁で構成するようにしてあるが、本発明にいうところの水量制御手段は、オン・オフ式の開閉弁をも包含するものである。
すなわち、主圧力水供給路３９及び副圧力水供給路４０への高圧の洗浄水の切り換え操作によっても、強力な洗浄とソフトな洗浄とを切り換えて行うことができる。
As described above, by adjusting the supply amount of high-pressure washing water to the main pressure water supply passage 39 and the sub pressure water supply passage 40 by the water amount control means 44a, 44b, the amount of washing treatment, the material of the filter medium 7, Has an advantage that the mode of cleaning can be changed according to various factors such as the degree of contamination.
In the above-described embodiment, the main pressure water supply passage 39 and the sub pressure water supply passage 40 are configured such that the water amount control means 44a and 44b for controlling the amount of high-pressure washing water are flow rate control valves. The water amount control means referred to in the present invention also includes an on / off type on-off valve.
That is, it is possible to switch between strong cleaning and soft cleaning by switching the high-pressure cleaning water to the main pressure water supply passage 39 and the sub pressure water supply passage 40.
１・・・濾材のリサイクルシステム
２・・・給水層
３・・・貯水部
４・・・洗浄用濾材貯留部
５・・・分級洗浄部分
５ａ・・・第１分級洗浄部
５ｂ・・・第２分級洗浄部
６・・・シャワーリング洗浄部
７・・・濾材
８ａ・・・濾材吸引用ジェットポンプ
８ｂ・・・補助ジェットポンプ
８ｃ・・・排出用ジェットポンプ
９・・・水
１０・・・送水管
１１・・・送給用ポンプ
１２・・・加圧ポンプ
１３・・・給水ポンプ
１４・・・投入口
１５・・・起震手段
１６・・・第１分級ケーシング
１７・・・洗浄ノズル
１８・・・シュータ
１９・・・ボックス
２０・・・出口
２１・・・第２分級ケーシング
２２・・・洗浄ノズル
２３・・・出口
２４・・・シュータ
２５・・・回収ボックス
２６・・・開閉バルブ
２７・・・配管
２８・・・防震具
２９・・・貯水部用ケーシング
３０・・・排水貯留部
３１・・・集積用ボックス
３２・・・送水ポンプ
３３・・・噴射ノズル
３４・・・ジェット流
３５・・・負圧形成管
３６・・・底部
３７・・・吸引口
３８・・・吸気口
３９・・・主圧力水供給路
４０・・・副圧力水供給路
４１・・・濾材吸引用ジェットポンプの吐出口
４２・・・補助ジェットポンプの吐出口
４３・・・送給路
４４ａ・４４ｂ・・水量制御弁
４５・・・水滴
４６・・・網目
４７・・・取出し部
４８・・・開閉弁
４９・・・排出用ボックス
DESCRIPTION OF SYMBOLS 1 ... Recycling system of filter medium 2 ... Water supply layer 3 ... Water storage part 4 ... Filter medium storage part for washing | cleaning 5 ... Classification washing part 5a ... 1st classification washing part 5b ... No. 2 class cleaning unit 6 ... shower ring cleaning unit 7 ... filter medium 8a ... filter medium suction jet pump 8b ... auxiliary jet pump 8c ... discharge jet pump 9 ... water 10 ... Water supply pipe 11 ... Feeding pump 12 ... Pressure pump 13 ... Water supply pump 14 ... Input port 15 ... Earthquake generating means 16 ... First classification casing 17 ... Cleaning nozzle 18 ... Shooter 19 ... Box 20 ... Outlet 21 ... Second classification casing 22 ... Cleaning nozzle 23 ... Outlet 24 ... Shooter 25 ... Collection box 26 ... Opening / closing Valve 27 ... Piping 28・ ・ Vibration isolator 29 ... Casing for water storage unit 30 ... Drainage storage unit 31 ... Box for accumulation 32 ... Water pump 33 ... Injection nozzle 34 ... Jet flow 35 ... Negative pressure Forming pipe 36 ... Bottom 37 ... Suction port 38 ... Intake port 39 ... Main pressure water supply path 40 ... Sub pressure water supply path 41 ... Discharge port 42 of filter medium suction jet pump 42 ... Auxiliary jet pump outlet 43 ... Feeding path 44a, 44b ... Water volume control valve 45 ... Water droplet 46 ... Mesh 47 ... Take-out part 48 ... Open / close valve 49 ... Discharge box
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| JP7266457B2 (en) * | 2019-05-08 | 2023-04-28 | 日本製鉄株式会社 | Filter media cleaning method |
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| JP4421695B2 (en) * | 1999-04-20 | 2010-02-24 | 有光工業株式会社 | Liquid ejection device |
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