JPH0522005U - Air supply device that is jetted in the countercurrent direction of the filter media that is installed in the sand filter device - Google Patents
Air supply device that is jetted in the countercurrent direction of the filter media that is installed in the sand filter deviceInfo
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- JPH0522005U JPH0522005U JP7147791U JP7147791U JPH0522005U JP H0522005 U JPH0522005 U JP H0522005U JP 7147791 U JP7147791 U JP 7147791U JP 7147791 U JP7147791 U JP 7147791U JP H0522005 U JPH0522005 U JP H0522005U
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- filter
- filter medium
- sand
- air supply
- supply device
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Abstract
(57)【要約】
【目的】 本考案は、産業廃水、又は地中壁構築、現物
打杭等土木工事処理水等（以下、汚濁原水とする。）を
清澄化、又は再利用する濾過装置、或は河川、海等への
投棄を図る濾過装置、更には、生活排水、廚房排水、又
は下水排水等の各種汚濁廃水の濾過装置の中で、濾材と
して砂を使用する砂濾過装置に於て、濾床濾材の向流方
向への流動を確保して得るエアー供給装置に関するもの
である。
【構成】 本考案は、砂濾材を利用して汚濁原水を濾過
する砂濾過装置に於て、この砂濾過装置を構成する傘状
の収れん床部を有するタンクと、このタンクの収れん床
部にて流動する濾床濾材の向流方向に開設した数個のエ
アー孔と、このエアー孔と配管を介して連設されるコン
プレッサー、制御装置等でなるエアー供給装置と、で構
成される砂濾過装置に装備される濾床濾材の向流方向に
噴射されるエアー供給装置である。
【効果】 濾床濾材の流動性を確保して、効率的な濾
過、又はスムーズな、洗浄濾材と汚染濾材の置換等を介
して、濾過濾材の塊状化（閉塞化）が回避される。
(57) [Summary] [Purpose] The present invention is a filtration device for clarifying or reusing industrial wastewater or treated water for civil engineering work such as construction of underground walls and actual piles (hereinafter referred to as polluted raw water). , Or a sand filtration device that uses sand as a filter medium in a filtration device for dumping into rivers, the sea, etc. In addition, the present invention relates to an air supply device that ensures the flow of the filter bed filter medium in the countercurrent direction. [Constitution] The present invention relates to a sand filter device for filtering contaminated raw water using a sand filter medium, and a tank having an umbrella-shaped converging floor part which constitutes this sand filtering device, and Sand filter consisting of several air holes opened in the counter-current direction of the filter bed filter material that flows as a result of the flow, and an air supply device consisting of a compressor, a control device, etc., which are connected to these air holes via pipes. It is an air supply device that is jetted in the countercurrent direction of the filter bed filter medium installed in the device. [Effect] The fluidity of the filter bed filter medium is ensured, and agglomeration (clogging) of the filter filter medium is avoided through efficient filtration or smooth replacement of the washing filter medium and the contaminated filter medium.
Description
【０００１】[0001]
本考案は、産業廃水（以下、汚濁原水とする。）を清澄化、又は再利用する濾 過装置、又は地中壁構築、現物打杭等土木工事処理水等（汚濁原水内に含める。 ）を清澄化、又は再利用、或は河川、海等への投棄を図る濾過装置、更には、生 活排水、廚房排水、又は下水排水等の各種汚濁廃水の濾過装置の中で、濾材とし て砂を使用する砂濾過装置に於て、濾床濾材の向流方向への流動（換言すれば、 濾過濾材の閉塞、又は架橋の生成を防止する概念を含む、）を確保して、効率的 な濾過、又はスムーズな濾床濾材の置換等が達成される濾床濾材の向流方向に噴 射されるエアー供給装置に関するものである。 The present invention is a filtration device for clarifying or reusing industrial wastewater (hereinafter referred to as polluted raw water), or underground water construction, treated water for civil engineering works such as actual piles, etc. (included in polluted raw water). As a filter medium in a filtration device that clarifies or reuses or discards it into rivers, the sea, etc., and also in various polluted wastewater filtration devices such as live drainage, kitchen drainage, or sewage drainage. In a sand filter that uses sand, it ensures efficient flow in the countercurrent direction of the filter media (in other words, it includes the concept of preventing the filter media from clogging or the formation of crosslinks) for efficient The present invention relates to an air supply device that is sprayed in a countercurrent direction of a filter bed filter medium that achieves simple filtration or smooth replacement of the filter bed filter medium.
【０００２】[0002]
従来、この種汚濁原水を処理する砂濾過装置としては、図３に示す砂濾過装置 が知られている（勿論この図の例に限定されず、上方より汚濁原水を、導入する 装置でも可能である。）。 Conventionally, as a sand filter device for treating this kind of polluted raw water, the sand filter device shown in Fig. 3 is known (of course, not limited to the example of this figure, a device for introducing the polluted raw water from above is also possible. is there.).
【０００３】 この砂濾過装置は、汚染された濾材（汚染濾材）は、流動空気を介してタンク に設けた輸送管の上方に搬送され、その後、濾床区域上方にある洗浄装置（洗浄 流路）まで輸送される。In this sand filter device, a contaminated filter medium (contaminated filter medium) is conveyed through a flowing air to above a transport pipe provided in a tank, and thereafter, a cleaning device (cleaning flow path above the filter bed area). ) Will be transported to.
【０００４】 この洗浄装置で、洗浄処理された洗浄濾材は、濾床区域の上方に、順次堆積さ れる（本考案では、洗浄濾材の流動であり、広義には、濾床濾材の流動と称する 。）。In this cleaning device, the washing filter medium subjected to the washing treatment is sequentially deposited above the filter bed section (in the present invention, this is a flow of the washing filter medium, which is broadly called a flow of the filter bed filter medium). ..).
【０００５】 以上の如く、濾床濾材の流動が確保されていることが、汚濁原水の濾過、換言 すれば、当該砂濾過装置が、正常に作動（機能）している状況である。As described above, the fact that the fluidity of the filter bed filter medium is ensured is a condition in which the contaminated raw water is filtered, in other words, the sand filter device is normally operating (functioning).
【０００６】 したがって、濾床濾材の流動を確保するためには、先ず、輸送管の下部に、タ ンクの収れん底部の汚染濾材を、確実に誘導（流動）すること、及びこの誘導さ れた汚染濾材を、タンクの収れん底部に達している輸送管、及びこの輸送管に供 給される流動空気を介して、当該輸送管の上方に輸送することが、不可欠である 。[0006] Therefore, in order to secure the flow of the filter bed filter medium, firstly, the contaminated filter medium at the bottom of the tank is convergently guided (flowed) to the lower part of the transport pipe, and this guiding is performed. It is indispensable to transport the contaminated filter media above the transport pipe via the transport pipe reaching the bottom of the converging bottom of the tank and the flowing air supplied to the transport pipe.
【０００７】[0007]
しかし、前記汚染濾材の、輸送管の下端開口部への、確実な誘導が確保されな い状況が間々発生する。 However, there often occurs a situation in which reliable guide of the contaminated filter medium to the lower end opening of the transport pipe is not ensured.
【０００８】 その要因を挙げれば、次のようなことが考えられる。The following can be considered as the factors.
【０００９】 （１）砂濾過装置が極めて僅かであるが、傾斜した状態に立設（据付け）されて いて、流動空気が、均一に輸送管の下部に供給されないこと。(1) The sand filtering device is extremely small, but it is vertically installed (installed) in an inclined state, and flowing air is not uniformly supplied to the lower part of the transport pipe.
【００１０】 （２）前記（１）の据付け不良、又はタンクの収れん底部の形状が、不均一とな っており、濾床区域に於ける洗浄又は汚染濾材（濾床濾材）の堆積空隙率が、均 一化されておらず、洗浄濾材又は汚染濾材のスムーズな流動が確保されないこと 。(2) Poor installation of (1) or uneven shape of the bottom of the agitation of the tank, and the porosity of the washed or contaminated filter material (filter bed filter material) accumulated in the filter bed area. However, it is not homogenized and a smooth flow of the washing filter material or the contaminated filter material cannot be ensured.
【００１１】 （３）一部の洗浄濾材へのＳＳ付着により、当該汚染濾材の塊状化を誘引し、輸 送管下端開口部への、確実な誘導が確保されないこと、及び濾床濾材のスムーズ な流動が確保されないこと。(3) The adherence of SS to a part of the washing filter media induces agglomeration of the contaminated filter media, failing to ensure reliable guidance to the lower end opening of the transport pipe, and smoothing of the filter bed filter media. Secure flow is not secured.
【００１２】 等である。And so on.
【００１３】[0013]
そこで、本考案は、濾床濾材に常時、又は間欠的、或は循環方式等で、エアー を供給（噴射）し、当該濾床濾材の流動性の確保、塊状化の防止、又はＳＳ付着 のほぼ均一化等を図るために、下記の構成を採用する。 In view of this, the present invention constantly or intermittently or circulates air to the filter bed filter medium to supply (inject) air to secure the fluidity of the filter bed filter medium, prevent agglomeration, or prevent SS adhesion. The following configuration is adopted in order to achieve almost uniformization.
【００１４】 即ち、本考案の砂濾過装置に装備される濾床濾材の向流方向に噴射されるエア ー供給装置は、 砂濾材を利用して汚濁原水を濾過する砂濾過装置に於て、 この砂濾過装置を構成する傘状の収れん床部を有するタンクと、 このタンクの収れん床部の向流方向に開設され、かつ濾床区域の各濾材た間欠 方式及び／又は順番で空気を噴射するための数個のエアー孔と、 このエアー孔と配管を介して連設される圧力調整手段、又はコンプレッサー、 制御装置等でなるエアー供給装置と、 で構成される。That is, the air supply device, which is installed in the sand filter device of the present invention and is jetted in the countercurrent direction of the filter bed filter medium, is a sand filter device that filters polluted raw water by using the sand filter medium. A tank having an umbrella-shaped converging floor that constitutes this sand filtering device and an air jet that is opened in the countercurrent direction of the converging floor of this tank and that has an intermittent method and / or order in which each filter material in the filter bed area is used. It is composed of several air holes for controlling the pressure, and a pressure adjusting means connected to the air holes via a pipe, or an air supply device including a compressor, a controller, and the like.
【００１５】[0015]
次に、本考案の作用を説明すると、タンクの収れん底部に導入された汚濁原水 は、濾床濾材との接触により、そのＳＳが除去される。 Next, the operation of the present invention will be described. The SS of the polluted raw water introduced into the agitation bottom of the tank is removed by contact with the filter bed filter medium.
【００１６】 そして、当該汚濁原水は、濾床区域内を上方に向かって、流動する濾床濾材に 対して向流方向に流れ、次第次第に清澄化されていき、この濾床区域の上方に達 した時点で、濾床濾材を介しての清澄作業が終了する。Then, the polluted raw water flows upward in the filter bed section in a countercurrent direction to the flowing filter bed filter medium, and is gradually clarified, and reaches above the filter bed section. At that point, the fining operation through the filter bed filter medium is completed.
【００１７】 以上のようにして、清澄化された処理水は、その後、タンクの上方に形成され ている清澄水滞留室に向かって上昇し、清澄水用の配管を介して外部に送り出さ れる。As described above, the clarified treated water then rises toward the clarified water retention chamber formed above the tank and is sent to the outside through the clarified water pipe.
【００１８】 一方収れん底部で、汚濁原水との接触により汚染された濾材は、輸送管内を、 輸送媒体として作用する空気を介してタンク上部に設けた洗浄装置に搬送される 。On the other hand, the filter medium, which has been contaminated at the bottom of the agglomerate by contact with the contaminated raw water, is transported in the transport pipe through the air acting as a transport medium to the cleaning device provided in the upper part of the tank.
【００１９】 その後、洗浄装置の洗浄流路に沿って流下する過程で、順次洗浄され、しかも 洗浄流路中に設けたプレート、又は迂回部材を介して破壊又は蛇行されて、効率 的に洗浄される。After that, in the process of flowing down along the cleaning flow path of the cleaning device, the cleaning is performed sequentially, and further, the plate provided in the cleaning flow path or the detouring member is broken or meandered to be efficiently cleaned. It
【００２０】 このようにして、洗浄された濾材、いわゆる洗浄濾材は、洗浄装置の洗浄流路 の下端から落下し、濾材区域の上面に、順次堆積される。The thus-cleaned filter medium, so-called cleaning filter medium, falls from the lower end of the cleaning channel of the cleaning device and is sequentially deposited on the upper surface of the filter medium section.
【００２１】 以上のような状況下に於て、本考案では、制御装置よりの指令に基づいて、駆 動装置を介してコンプレッサーを作動し、エアー孔より空気を、濾床区域の収れ ん底部にある汚染濾材に噴射する。Under the above circumstances, in the present invention, based on a command from the control device, the compressor is operated via the drive device, air is blown from the air holes, and the filter bed area is not filled. Spray on the contaminated filter media at the bottom.
【００２２】 この汚染濾材への空気の噴射を介して、濾床濾材のＳＳ付着による塊状化（閉 塞化又は架橋化である。以下同じ）、或はタンクの立設等僅かな設計ミスに起因 する塊状化の傾向を回避し、もって収れん底部にある当該汚染濾材の輸送管下端 開口部へのスムーズな誘導を確保できる。Through the injection of air to the contaminated filter medium, the filter bed filter medium may be agglomerated (closed or cross-linked; the same applies hereinafter) due to SS adhesion, or due to a slight design error such as standing of a tank. The tendency of agglomeration resulting from this can be avoided, and thus smooth guidance of the contaminated filter media at the bottom of the agglomeration to the lower end opening of the transport pipe can be secured.
【００２３】 一方当該汚染濾材の、確実かつスムーズな、輸送管下端開口部への移行により 、収れん底部にある濾床濾材の崩壊現象を助長し、もって濾床区域全体の濾材に 、流動性を付与できる。On the other hand, the reliable and smooth transfer of the contaminated filter medium to the opening of the lower end of the transportation pipe promotes the collapse phenomenon of the filter bed filter medium at the bottom of the agglomeration, thereby providing fluidity to the filter medium in the entire filter bed area. Can be given.
【００２４】 以上の濾床濾材の流動性を介して、汚濁原水の効率的な濾過、又は装置の効率 的な稼動等が、達成される。Through the fluidity of the filter bed filter medium described above, efficient filtration of polluted raw water, efficient operation of the apparatus, and the like are achieved.
【００２５】 尚エアー孔より空気等の噴射は、数個のエアー孔より順次所定時間、又は可変 時間等で連続的になす（噴射すること。以下同じ）制御方法、或は数個のエアー 孔を、前記時間条件で、間欠的になす制御方法、更には図示しないセンサーを介 して、所定条件、例えば、洗浄濾材の流下の開始又は停止、或いは流下量の増減 を確認し、個別制御方法、又は集中管理制御方法が挙げられる。Note that the injection of air or the like from the air holes is performed continuously from several air holes for a predetermined time or at a variable time (injection; the same applies hereinafter), or several air holes. The control method is intermittently performed under the above-mentioned time conditions, and a predetermined condition, for example, the start or stop of the flow of the washing filter medium or the increase or decrease of the flow amount is confirmed through a sensor (not shown), and the individual control method is used. , Or a centralized management control method.
【００２６】[0026]
以下、本考案の一実施例を図面を参照しながら説明する。 An embodiment of the present invention will be described below with reference to the drawings.
【００２７】 １は収れん底部２を有する円筒状のタンクで、このタンク１には、濾過用の濾 床濾材３が充填される濾床区域４と、清澄水滞留空間又は沈降分離部屋として機 能する清澄水滞留室５と、が形成されている。Reference numeral 1 is a cylindrical tank having a convergent bottom portion 2. This tank 1 functions as a filter bed section 4 filled with a filter bed filter medium 3 for filtration, and as a clear water retention space or a sedimentation separation chamber. A clear water retention chamber 5 is formed.
【００２８】 そして、このタンク１には、汚染濾材３ａを後述する洗浄装置に輸送する輸送 管６が設けられている。The tank 1 is provided with a transportation pipe 6 that transports the contaminated filter medium 3a to a cleaning device described later.
【００２９】 この輸送管６の上端開口部６ａは、前記タンク１外に延設されるとともに、そ の下端開口部６ｂは、前記収れん底部２の濾床区域４に達している。The upper end opening 6 a of the transport pipe 6 extends outside the tank 1, and the lower end opening 6 b thereof reaches the filter bed section 4 of the agglomeration bottom 2.
【００３０】 尚輸送管６の上方部位には、洗浄装置の洗浄流路、及び後述する洗浄排水室に 、それぞれ連通する開口６ｃが設けられている。An opening 6c that communicates with the cleaning flow path of the cleaning device and the cleaning drainage chamber described later is provided in the upper portion of the transport pipe 6.
【００３１】 そして、この輸送管６の開口６ａは、タンク１の上方に設けた堰８を有する洗 浄排水室９に連設されている。The opening 6 a of the transport pipe 6 is connected to a cleaning / drainage chamber 9 having a weir 8 provided above the tank 1.
【００３２】 したがって、この輸送管６の下端開口部６ｂ、又はその近傍にある汚染濾材３ ａは、当該下端開口部６ｂに配管１０を介して、輸送管６内に供給される（噴射 される）空気の輸送作用により、下端開口部６ｂより輸送管６に導かれ、その後 、輸送管６内を上昇し、その上方に設けた開口６ｃに達する。Therefore, the lower end opening 6b of the transport pipe 6 or the contaminated filter material 3a in the vicinity thereof is supplied (injected) into the transport pipe 6 through the pipe 10 to the lower end opening 6b. ) Due to the transportation action of air, it is guided to the transport pipe 6 through the lower end opening 6b, then rises in the transport pipe 6 and reaches the opening 6c provided above it.
【００３３】 この上方に達した汚染濾材３ａ（幾分洗浄されている。）は、その殆どが、輸 送管６の開口６ｃより洗浄流路７内に流下され、この洗浄流路７内に於て、従来 と同様に洗浄される。Most of the contaminated filter material 3 a (which has been cleaned to some extent) that has reached the upper side is flowed down into the cleaning flow path 7 through the opening 6 c of the transport pipe 6, and then enters the cleaning flow path 7. At that time, it is cleaned as before.
【００３４】 この洗浄された洗浄濾材３ｂは、濾床区域４の上方に堆積される。This washed filter material 3 b is deposited above the filter bed section 4.
【００３５】 図中１１は洗浄濾材３ｂを拡散する円錐状の傘、１２は洗浄排水室９より延設 された汚水用配管、１３は清澄水滞留室５より延設された清澄水用配管である。In the figure, 11 is a conical umbrella for diffusing the cleaning filter medium 3 b, 12 is a sewage pipe extending from the washing / drainage chamber 9, and 13 is a clarification water pipe extending from the clarification water retention chamber 5. is there.
【００３６】 １４はタンク１の収れん底部２に数個穿設したエアー孔で、このエアー孔１４ の開口方向は、タンク１の上方、即ち濾床濾材の流下に対して向流する方向（向 流方向）に開口されている。Reference numeral 14 is an air hole formed in the convergent bottom portion 2 of the tank 1, and the opening direction of the air hole 14 is a direction (countercurrent direction) above the tank 1, that is, in the downward direction of the filter medium. It is opened in the flow direction).
【００３７】 そして、このエアー孔１４は、分岐配管１５及び／又は本配管１６を介して送 風機又はコンプレッサー等１７、駆動装置１８、制御装置（自動制御が望ましい 。）１９で構成されるエアー供給装置２０に連設されている。The air hole 14 is supplied with air through a branch pipe 15 and / or a main pipe 16 such as a blower or a compressor 17, a drive device 18, and a control device (preferably automatic control) 19. It is connected to the device 20.
【００３８】 尚前記送風機又はコンプレッサー等１７の前方に、圧力タンク等２１の圧力調 整手段を設け、エアー孔１４からの噴射圧力に、強弱又は強力な噴射圧を付与す ることによって、前記塊状化、或いはＳＳ付着等の程度に対して、有効に対処し 得る。A pressure adjusting means such as a pressure tank 21 is provided in front of the blower or the compressor 17 to give a strong or weak injection pressure to the injection pressure from the air hole 14 to obtain the block shape. It is possible to effectively deal with the degree of deterioration or SS adhesion.
【００３９】 したがって、前述の如く、制御装置１９の自動及び／又は手動制御を介して、 各エアー孔１４より、所定量の空気Ａが、主として汚染濾材３ａに噴射される。Therefore, as described above, a predetermined amount of air A is mainly injected to the contaminated filter medium 3a from each air hole 14 through the automatic and / or manual control of the control device 19.
【００４０】[0040]
本考案は、以上詳述した如く、タンクの収れん底部に、向流方向に開口する数 個のエアー孔を設ける構成であるので、下記のような効果を有する。 As described in detail above, the present invention has the following effects because it has a configuration in which several air holes that open in the countercurrent direction are provided in the bottom of the convergence of the tank.
【００４１】 （１）砂濾過装置が、傾斜状態に立設されたり、又は収れん底部の収れん角度の 不均一等に起因する不合理、即ち輸送管の下端開口部への、汚染濾材等の濾床濾 材の供給不良を回避できる。(1) The sand filtering device is installed upright in an inclined state, or is unreasonable due to the uneven convergence angle of the bottom of the convergence, that is, the filtration of the contaminated filter material into the lower end opening of the transport pipe. Poor supply of floor filter media can be avoided.
【００４２】 （２）砂濾過装置の立設、精度等の容易化が達成される。(2) The sand filter apparatus is erected, and the accuracy and the like are facilitated.
【００４３】 （３）収れん底部の濾床濾材に対する空気の噴射を介して、濾床濾材全体に、流 動性を付与できる。(3) Fluidity can be imparted to the entire filter bed filter medium by injecting air to the filter bed filter medium at the bottom of the convergence.
【００４４】 （４）一部濾材へのＳＳ付着、又はその他理由による汚染濾材等の濾床濾材の塊 状化が防止できる。(4) It is possible to prevent a part of SS from adhering to the filter medium or agglomeration of the filter bed filter medium such as a contaminated filter medium due to other reasons.
【００４５】 （５）効率的な濾過と、効率的な保守管理が達成される。(5) Efficient filtration and efficient maintenance management are achieved.
【００４６】 （６）制御装置を介して、空気の噴射、及び汚染濾材等の濾床濾材の流動化、洗 浄スピード等のコントロール制御が可能となる。(6) It is possible to control the injection of air, the fluidization of the filter media such as the contaminated filter media, and the cleaning speed through the control device.
【図１】本考案の要部の縦断面図である。FIG. 1 is a vertical cross-sectional view of an essential part of the present invention.
【図２】図１のタンクの収れん底部を示す横断面図であ
る。FIG. 2 is a cross-sectional view showing a convergence bottom portion of the tank of FIG.
【図３】砂濾過装置の全体を示す縦断面図である。FIG. 3 is a vertical cross-sectional view showing the entire sand filter device.
１ タンク ２ 収れん底部 ３ 濾床濾材 ３ａ 汚染濾材 ３ｂ 洗浄濾材 ４ 濾床区域 ５ 清澄水滞留室 ６ 輸送管 ６ａ 上端開口部 ６ｂ 下端開口部 ６ｃ 開口 ７ 洗浄流路 ８ 堰 ９ 洗浄排水室 １０ 配管 １１ 傘 １２ 配管 １３ 配管 １４ エアー孔 １５ 分岐配管 １６ 本配管 １７ 送風機又はコンプレッサー等 １８ 駆動装置 １９ 制御装置 ２０ エアー供給装置 ２１ 圧力タンク等 Ａ 空気 1 Tank 2 Convergence Bottom 3 Filter Bed Filter Material 3a Contaminated Filter Material 3b Wash Filter Material 4 Filter Bed Area 5 Clarified Water Reservoir 6 Transport Pipe 6a Top Opening 6b Bottom Opening 6c Open 7 Wash Flow 8 Wash 9 Drain 10 Pipe 11 Umbrella 12 Pipe 13 Pipe 14 Air hole 15 Branch pipe 16 Main pipe 17 Blower or Compressor 18 Drive device 19 Control device 20 Air supply device 21 Pressure tank etc. A Air
Claims (4)
濾過装置に於て、 この砂濾過装置を構成する傘状の収れん床部を有するタ
ンクと、 このタンクの収れん床部にて流動する濾床濾材の向流方
向に開設した数個のエアー孔と、 このエアー孔と配管を介して連設されるコンプレッサ
ー、制御装置等でなるエアー供給装置と、 で構成される砂濾過装置に装備される濾床濾材の向流方
向に噴射されるエアー供給装置。1. A sand filter device for filtering contaminated raw water using a sand filter medium, comprising: a tank having an umbrella-shaped converging floor part which constitutes this sand filtering device; A sand filter device consisting of several air holes opened in the countercurrent direction of the filter bed filter medium and an air supply device consisting of a compressor, a control device, etc. which are connected to these air holes via pipes. An air supply device that is sprayed in the counter-current direction of the filter media that is installed.
へのエアー供給を、間欠的に行うに制御した、 請求項１の砂濾過装置に装備される濾床濾材の向流方向
に噴射されるエアー供給装置。2. The countercurrent direction of the filter bed filter medium equipped in the sand filter apparatus according to claim 1, wherein the air supply to the filter bed filter medium through the several air holes of claim 1 is controlled to be performed intermittently. Air supply device that is sprayed on.
へのエアー供給を、間欠方式で、かつ順次行うように制
御した、 請求項１の砂濾過装置に装備される濾床濾材の向流方向
に噴射されるエアー供給装置。3. The filter bed filter medium equipped in the sand filter apparatus according to claim 1, wherein air supply to the filter bed filter medium through the several air holes of claim 1 is controlled to be performed intermittently and sequentially. Air supply device that is jetted in the counter-current direction.
段を付設した、 請求項１の砂濾過装置に装備される濾床濾材の向流方向
に噴射されるエアー供給装置。4. An air supply device for injecting in a countercurrent direction of a filter bed filter medium equipped in the sand filter device according to claim 1, wherein the compressor according to claim 1 is provided with pressure adjusting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7147791U JPH0522005U (en) | 1991-09-05 | 1991-09-05 | Air supply device that is jetted in the countercurrent direction of the filter media that is installed in the sand filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7147791U JPH0522005U (en) | 1991-09-05 | 1991-09-05 | Air supply device that is jetted in the countercurrent direction of the filter media that is installed in the sand filter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0522005U true JPH0522005U (en) | 1993-03-23 |
Family
ID=13461752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7147791U Pending JPH0522005U (en) | 1991-09-05 | 1991-09-05 | Air supply device that is jetted in the countercurrent direction of the filter media that is installed in the sand filter device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0522005U (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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5854176U (en) * | 1981-10-06 | 1983-04-13 | 日本電気株式会社 | television receiver |
-
1991
- 1991-09-05 JP JP7147791U patent/JPH0522005U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5854176U (en) * | 1981-10-06 | 1983-04-13 | 日本電気株式会社 | television receiver |
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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