JP2012187578A - Filtration apparatus - Google Patents

Filtration apparatus Download PDF

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JP2012187578A
JP2012187578A JP2012052304A JP2012052304A JP2012187578A JP 2012187578 A JP2012187578 A JP 2012187578A JP 2012052304 A JP2012052304 A JP 2012052304A JP 2012052304 A JP2012052304 A JP 2012052304A JP 2012187578 A JP2012187578 A JP 2012187578A
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nozzle
filter
outer tube
tube
fluid
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Moriharu Hayashi
盛治 林
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Abstract

PROBLEM TO BE SOLVED: To provide a filter for a filtration apparatus to eliminate dust having special properties with strong cohesiveness and adhesiveness.SOLUTION: A backwashing nozzle 1 held in a cylindrical filter 5 for filtrating dust and supported by a top plate surface 11 of the filtration apparatus comprises an inner pipe 2, an outer pipe 3, and a nozzle 4 formed at the outer pipe 3. A cylindrical buffer space is formed between the inner pipe 2 and the outer pipe 3, and a buffer space is formed between the outer pipe 3 and the nozzle 4. Inner holes are formed in the outer peripheral surface of the inner pipe 2, and outer holes are formed in a surface that leads to the nozzle 4 from the outer pipe 3. Ejectors are formed at the nozzle 4 to spout out a backwashing fluid toward a filter inner cylinder surface 51. A driving means 6 is provided for rotating the outer pipe 3 around a rotation axis C with respect to the inner pipe 2. While continuously rotating the outer pipe 3 of the backwashing nozzle 1, the backwashing fluid is spouted out to eliminate dust sticking thin to the whole filter surface before the dust sticks fast to the filter 5. An increase in pressure loss caused by the filtration resistance of dust is thereby small, and a filter area can be reduced.

Description

本発明は、フィルタの目詰まりを解消するろ過装置に関する。  The present invention relates to a filtration device that eliminates clogging of a filter.

製薬会社の製造装置には、図７に示すように給気ファン７１、空調設備７２、流動造粒機７３、集塵機７４、排気ファン７５から構成された造粒設備がある。この製造装置は、給気ファン７１と排気ファン７５及び空調設備７２により空気調和された空気を流動造粒機７３内に送風し、装置内で粉を流動化させ、その中に造粒液をスプレーして粉同士を付着させて所望の大きさの粒にする。このときに、流動造粒機７３のフィルタ５は流動化している薬粉が飛散しないようにし、空気のみを通過させる。また、流動造粒機７３のフィルタ５の破損などにより薬粉が屋外に放出しないように集塵機７４を設置し、その装置に取付けられたフィルタ５にて薬粉をろ過し、空気のみを排気ファン７５にて屋外に排気する。  As shown in FIG. 7, a manufacturing apparatus of a pharmaceutical company has a granulation facility including an air supply fan 71, an air conditioning facility 72, a fluidized granulator 73, a dust collector 74, and an exhaust fan 75. This manufacturing apparatus blows the air conditioned by the air supply fan 71, the exhaust fan 75, and the air conditioning equipment 72 into the fluidized granulator 73, fluidizes the powder in the apparatus, and the granulated liquid therein. Spray to make the particles adhere to each other to the desired size. At this time, the filter 5 of the fluidized granulator 73 prevents the fluidized powder from scattering and allows only air to pass through. In addition, a dust collector 74 is installed so that the powder is not released to the outside due to breakage of the filter 5 of the fluidized granulator 73, the powder is filtered by the filter 5 attached to the apparatus, and only the air is exhausted by the fan. Exhaust at 75 outdoors.

この製造装置を連続的に稼動する場合は、流動造粒機７３や集塵機７４に複数のフィルタ５を配置する。そして、夫々のフィルタ５の上部に配置したノズル７７より逆洗用のジェット気流を定期的に順次噴射してフィルタ５に積層した薬粉を払い落とすのである。  When this manufacturing apparatus is continuously operated, a plurality of filters 5 are arranged in the fluidized granulator 73 and the dust collector 74. Then, a jet air flow for backwashing is periodically and sequentially ejected from the nozzles 77 arranged on the upper portions of the respective filters 5 to wipe off the powder powder stacked on the filters 5.

また、フィルタ５が単独の場合、定期的にこの製造装置の空気の流れを止めて、フィルタ５の上部に設置したノズル７７より逆洗用のジェット気流を噴射したり、フィルター５自体を揺り動かしてフィルタ５に積層した薬粉を払い落とすのである。  In addition, when the filter 5 is used alone, the air flow of the manufacturing apparatus is periodically stopped, and a jet air flow for backwashing is ejected from the nozzle 77 installed on the upper part of the filter 5 or the filter 5 itself is shaken. The powder powder stacked on the filter 5 is removed.

しかしながら、いずれの場合も図５（ロ）（ハ）に示すように、筒状に形成されたフィルタ５に積層した薬粉が粘着性や付着性の強い特殊な性質をもつ場合は、稼働を続けるうちに徐々にろ布に固着して目詰まりが起こり使用できなくなる。  However, in any case, as shown in FIGS. 5 (b) and 5 (c), if the powder powder laminated on the cylindrical filter 5 has a special property with strong adhesiveness and adhesion, the operation should be performed. As it continues, it gradually adheres to the filter cloth and becomes clogged, making it unusable.

逆洗装置に関する次の特許文献１がある。粉塵等をろ過する筒状のフィルタの中に内管と外管とで双方の軸線が一致する二重管構造の逆洗ノズルを挿入し、内管と外管の間に筒状の緩衝空間を、内管の外周面には内孔を、外管の外周面には一直線上に多数の外孔をあけ、回転軸線を中心にして外管を内管に対して回転可能に設けてある。一方、逆洗用流体は内管より外管に供給され、外管を回転させて外孔より逆洗用流体が吹き出される。  There exists the following patent document 1 regarding a backwash apparatus. Insert a backwash nozzle with a double-pipe structure in which the inner and outer pipes have the same axial line into a cylindrical filter that filters dust, and a cylindrical buffer space between the inner and outer pipes. The inner tube has an inner hole on the outer peripheral surface, and a plurality of outer holes in a straight line on the outer peripheral surface of the outer tube, and the outer tube is provided so as to be rotatable with respect to the inner tube about the rotation axis. . On the other hand, the backwash fluid is supplied from the inner tube to the outer tube, and the outer tube is rotated to blow out the backwash fluid from the outer hole.

このようにフィルタの内部に二重管構造の逆洗ノズルを同心円状に有し、緩衝空間を有していると、回転する外管に設けられた外孔から指向性をもって、均一な逆洗用流体がフィルタ内筒のろ過部全面に勢よく吹き出される。  Thus, if the backwash nozzle with a double pipe structure is concentrically arranged inside the filter and has a buffer space, uniform backwash with directivity from the outer hole provided in the rotating outer pipe. The working fluid is blown out vigorously over the entire filtration portion of the filter inner cylinder.

特開２０１０−２２１１７２号公報JP 2010-221172 A

このような内管と回転可能な外管で構成される二重管構造の逆洗装置は、逆洗の除塵効果を高めるには、外管の外径をフィルタの内筒径に近いサイズにするのが望ましい。しかしながら、外管の外径をフィルタの内筒径に近いサイズにすればするほど、フィルタでろ過された流体の流速は速くなり、フィルタの内筒の出口部で圧力損失が大きくなる。  In order to increase the dust removal effect of backwashing, the double pipe structure backwashing device composed of such an inner pipe and a rotatable outer pipe has an outer diameter close to the inner cylinder diameter of the filter. It is desirable to do. However, as the outer diameter of the outer tube is made closer to the inner cylinder diameter of the filter, the flow rate of the fluid filtered by the filter becomes faster, and the pressure loss increases at the outlet of the inner cylinder of the filter.

例えば、フィルタの内筒径が２００ｍｍの筒状のフィルタで２０ｍ３／分の空気をろ過し、逆洗効果を高めるために外管の外径を１８０ｍｍにするとフィルタの内筒出口部での流速は５５ｍ／秒にも達するため、圧力損失が大きくなりエネルギー効率が悪くなる。For example, if air is filtered at 20 m 3 / min with a cylindrical filter having an inner cylinder diameter of 200 mm and the outer diameter of the outer tube is 180 mm in order to enhance the backwashing effect, the flow velocity at the inner cylinder outlet of the filter Reaches 55 m / sec, resulting in large pressure loss and poor energy efficiency.

逆に外径を８０ｍｍにするとフィルタの内筒出口部での流速は１３ｍ／秒に下がることになるが、内筒と外管に形成されたノズル孔との距離が６０ｍｍと大きくなり、その分だけ逆洗用流体の噴射圧を高くして流量を増大しても効率よく除塵できなくなる。  Conversely, if the outer diameter is 80 mm, the flow velocity at the inner cylinder outlet of the filter will be reduced to 13 m / sec. However, the distance between the inner cylinder and the nozzle hole formed in the outer pipe will be as large as 60 mm. Even if the injection pressure of the backwashing fluid is increased and the flow rate is increased, the dust cannot be removed efficiently.

本発明は、上記不都合を解消するものであり、その解決課題は、粘着性のある粉などがフィルタに固着するのを防ぎ、フィルタ内筒の全域に均一な圧力で逆洗用流体を吹き出して効率良く除塵することである。  The present invention solves the above inconveniences, and its solution is to prevent sticky powder and the like from adhering to the filter, and to blow back-washing fluid with uniform pressure over the entire area of the filter inner cylinder. It is to remove dust efficiently.

本発明は、筒状のフィルタの中に逆洗ノズルが収容されるろ過装置を前提とする。  The present invention presupposes a filtration device in which a backwash nozzle is accommodated in a cylindrical filter.

そして、請求項１の発明は、粉塵類をろ過する筒状のフィルタ５の中に収容されると共にろ過装置天板面１１で支持される逆洗ノズル１は、内管２と外管３と外管３に形成したノズル４とで構成し、内管２と外管３の間に筒状の緩衝空間２２を、外管３とノズル４の間に緩衝空間４２を形成し、内管２の外周面には内孔２１を、外管３からノズル４へ通じる面には外孔３１を、ノズル４にはエジェクター４１を逆洗用流体とベンチュリー効果により吸い込まれる流体がノズル孔４３からフィルタ内筒面５１に向って吹き出すようにそれぞれ形成し、回転軸線Ｃを中心に外管３を内管２に対して回転するように上部軸受６２と下部軸受６３とを備え、外管３を回転させる駆動手段６を備えている。  In the invention of claim 1, the backwash nozzle 1 housed in a cylindrical filter 5 for filtering dust and supported by the top surface 11 of the filtration device includes an inner tube 2, an outer tube 3, The nozzle 4 is formed in the outer tube 3, a cylindrical buffer space 22 is formed between the inner tube 2 and the outer tube 3, and a buffer space 42 is formed between the outer tube 3 and the nozzle 4. An inner hole 21 is formed on the outer peripheral surface of the nozzle, an outer hole 31 is formed on the surface leading from the outer tube 3 to the nozzle 4, and an ejector 41 is filtered into the nozzle 4 from the nozzle hole 43 by the backwash fluid and the Venturi effect. Each is formed so as to blow toward the inner cylinder surface 51, and is provided with an upper bearing 62 and a lower bearing 63 so that the outer tube 3 is rotated with respect to the inner tube 2 around the rotation axis C, and the outer tube 3 is rotated. The driving means 6 is provided.

また、請求項２のように、フィルタ内筒面５１に向って逆洗用流体をスリット状に吹き出すように、外管３にフィルタ５の高さ相当の長さを有し、回転によりにフィルタ５に接触しないフィルタ内筒面５１の近辺まで伸ばしたノズル４を形成し、吹き出す方向やスリット幅が調整できるエジェクター４１を備えている  Further, as in claim 2, the outer tube 3 has a length corresponding to the height of the filter 5 so that the backwash fluid is blown out toward the filter inner cylinder surface 51 in a slit shape, and the filter is rotated by rotation. The nozzle 4 extended to the vicinity of the filter inner cylinder surface 51 which does not contact 5 is formed, and the ejector 41 which can adjust the blowing direction and the slit width is provided.

また、請求項３のように、逆洗用流体が流通する内管２の複数の内孔２１の総開口面積が、外管３の複数の外孔３１の総開口面積より大きく形成し、外管３の複数の外孔３１の総開口面積が、エジェクター４１のノズル孔４３の総開口面積より大きく形成することである。  Further, as in claim 3, the total opening area of the plurality of inner holes 21 of the inner tube 2 through which the backwash fluid flows is formed larger than the total opening area of the plurality of outer holes 31 of the outer tube 3, The total opening area of the plurality of outer holes 31 of the tube 3 is larger than the total opening area of the nozzle holes 43 of the ejector 41.

本発明は、内管２と外管３の間に筒状の緩衝空間２２を設け、さらに、外管３とノズル２の間にも緩衝空間４２を設けたので、内管２の複数の内孔２１や外管３の複数の外孔３１を通過した逆洗用流体が、それぞれの緩衝空間で衝突しあって撹拌され、ノズル４に形成されたエジェクター４１のベンチュリー効果により吸い込み流体がさらに加わり、その結果、ノズル孔４３からの吹き出し速度が増大し、外管３が内管２に対して回転することにより、フィルタ５の内筒面の全域に逆洗用流体が吹き出されて除塵効果の高いものとなる。  In the present invention, the cylindrical buffer space 22 is provided between the inner tube 2 and the outer tube 3, and the buffer space 42 is also provided between the outer tube 3 and the nozzle 2. The backwash fluid that has passed through the holes 21 and the plurality of outer holes 31 of the outer tube 3 collides with each other in the buffer space and is agitated, and suction fluid is further added by the venturi effect of the ejector 41 formed in the nozzle 4. As a result, the blowing speed from the nozzle hole 43 increases, and the outer tube 3 rotates relative to the inner tube 2, so that the backwashing fluid is blown out over the entire inner cylindrical surface of the filter 5, and the dust removal effect is improved. It will be expensive.

また、外管３を連続的に高速回転させることにより、フィルタの全面に積層する粉塵類は極めて薄くなり、ろ過抵抗が上昇しない分だけフィルタ面積を小さくできる。  Further, by continuously rotating the outer tube 3 at a high speed, the dusts stacked on the entire surface of the filter become extremely thin, and the filter area can be reduced by the amount that the filtration resistance does not increase.

請求項２の発明は、フィルタ内筒面５１に向って逆洗用流体をスリット状に吹き出すように、外管３にフィルタ５の高さ相当の長さを有し、回転によりにフィルタ５に接触しないフィルタ内筒面５１の近辺まで伸ばしたノズル４を形成し、吹き出す方向やスリット幅が調整できるエジェクタ−４１を備えている。フィルタ内筒面５１の近辺でスリット状の逆洗用流体を吹き出すことにより、フィルタ内筒面５１への噴射圧が局部的に大きく掛かかり、それによってフィルタ５に微振動も発生させるので、少ない逆洗用流体でフィルタ５に固着しやすい粉塵類の除去ができる。  According to the second aspect of the present invention, the outer tube 3 has a length corresponding to the height of the filter 5 so that the backwashing fluid is blown out toward the filter inner cylinder surface 51 in a slit shape. The nozzle 4 extended to the vicinity of the filter inner cylinder surface 51 which does not contact is formed, and the ejector 41 which can adjust the blowing direction and slit width is provided. By blowing out the slit-like backwashing fluid in the vicinity of the filter inner cylinder surface 51, the injection pressure to the filter inner cylinder surface 51 is greatly applied locally, thereby causing the filter 5 to generate micro vibrations. It is possible to remove dust that is easily fixed to the filter 5 with the backwash fluid.

また、スリット状の逆洗用流体を吹き出す方向を、外管３の回転力への補助作用が働くように外管３を回転方向３２の反対方向に向けることで、駆動手段６の動力の低減になる。さらに、フィルタ５に積層する各種の粉塵類は、それぞれ固着性等の性質が異なるので、その性質に合わせてエジェクター４１のスリット幅を調整する。逆洗用流体流量Ｎを一定とした場合、スリット幅を狭くするとベンチュリ効果による吸込流体流量ｎが増えると共にノズル孔４３からの吹き出し流量が（Ｎ＋ｎ）と増加し、速度が速くなって固着しやすい粉塵類の除去が効率的にできる。  Further, the power of the driving means 6 is reduced by directing the outer tube 3 in the direction opposite to the rotational direction 32 so that the slit-like backwash fluid is blown out so that an auxiliary action to the rotational force of the outer tube 3 works. become. Furthermore, since various dusts stacked on the filter 5 have different properties such as adhesion, the slit width of the ejector 41 is adjusted according to the properties. When the backwashing fluid flow rate N is constant, if the slit width is narrowed, the suction fluid flow rate n due to the venturi effect increases and the blowout flow rate from the nozzle hole 43 increases to (N + n). Dust can be removed efficiently.

請求項３の発明は、逆洗用流体が流通する内管２の複数の内孔２１の総開口面積が、外管３の複数の外孔３１の総開口面積より大きく形成し、外管３の複数の外孔３１の総開口面積が、エジェクター４１のノズル孔４３の総開口面積より大きく形成してある。これにより、内管２と外管３の間の緩衝空間２２や外管３とノズル４の間の緩衝空間４２の圧力が高まり、逆洗用流体が撹拌され易く、ノズル孔４３からの吹き出し圧力が一段と均一化される。  According to the third aspect of the present invention, the total opening area of the plurality of inner holes 21 of the inner tube 2 through which the backwash fluid flows is larger than the total opening area of the plurality of outer holes 31 of the outer tube 3. The total opening area of the plurality of outer holes 31 is larger than the total opening area of the nozzle holes 43 of the ejector 41. As a result, the pressure in the buffer space 22 between the inner tube 2 and the outer tube 3 and the buffer space 42 between the outer tube 3 and the nozzle 4 is increased, and the backwashing fluid is easily stirred, and the blowing pressure from the nozzle hole 43 is increased. Is made more uniform.

本発明のろ過装置の内部構造を説明した構成図である。It is a block diagram explaining the internal structure of the filtration apparatus of this invention. 本発明の逆洗ノズルのＡ−Ａ線断面図である。It is AA sectional view taken on the line of the backwash nozzle of this invention. 本発明のノズル４の斜視図であり、（イ）はスリット型のエジェクターを示し、（ロ）は複数の丸型のエジェクターを示し、（ハ）はスリット状のノズルを示す。It is a perspective view of the nozzle 4 of this invention, (A) shows a slit-type ejector, (B) shows a plurality of round-type ejectors, and (C) shows a slit-like nozzle. 本発明の逆洗用流体が通過する各孔を示す斜視図であり、（イ）はノズル４のノズル孔４３を示し、（ロ）は外管３の外孔３１を示し、（ハ）は内管２の内孔２１を示す。It is a perspective view which shows each hole through which the fluid for backwashing of this invention passes, (a) shows the nozzle hole 43 of the nozzle 4, (b) shows the outer hole 31 of the outer tube | pipe 3, and (c) shows. An inner hole 21 of the inner tube 2 is shown. 各種のフィルタ及び粉が積層した状態を示す正断面図であり、（イ）プリーツフィルタに薄く付着した状態を示し、（ロ）プリーツフィルタに厚く積層した状態を示し、（ハ）は円筒状のフィルタに積層した状態を示す。It is a front sectional view showing a state in which various filters and powders are laminated, (a) shows a state of thinly adhering to a pleated filter, (b) shows a state of thickly laminated on a pleated filter, and (c) shows a cylindrical shape The state laminated | stacked on the filter is shown. 本発明の逆洗ノズルが使用される実施例を示した説明図である。It is explanatory drawing which showed the Example by which the backwash nozzle of this invention is used. 薬の製造装置に使用されるろ過装置についての説明図である。It is explanatory drawing about the filtration apparatus used for the manufacturing apparatus of a medicine.

粘着性のある粉などがフィルタに固着するのを防ぎ、フィルタ内筒の全域に均一な圧力で逆洗用流体を吹き出して効率良く除塵する目的を、内管と外管の間に設けた筒状の緩衝空間と、外管とノズルの間に設けた緩衝空間と、により実現した。    A cylinder provided between the inner and outer pipes for the purpose of preventing sticky powder from sticking to the filter and efficiently removing dust by blowing backwash fluid over the entire area of the filter inner cylinder with uniform pressure. And a buffer space provided between the outer tube and the nozzle.

以下、図面に基づいて本発明のろ過装置について詳細に説明する。  Hereinafter, the filtration device of the present invention will be described in detail with reference to the drawings.

図１に示すように、粉塵類を含む流体は流体輸送装置によりろ過装置入口部から入り、粉塵類はフィルタ５に付着する。ろ過された流体は、流体出口部より排出される。フィルタ５に付着した粉塵類は、フィルタ５の内部に収容された逆洗ノズル１から吹き出される逆洗用流体により剥離され、ろ過装置の下部に配置した受容器Ｗ２に収容される。  As shown in FIG. 1, the fluid containing dust enters from the inlet of the filtration device by the fluid transport device, and the dust adheres to the filter 5. The filtered fluid is discharged from the fluid outlet. The dust adhering to the filter 5 is peeled off by the backwashing fluid blown from the backwashing nozzle 1 housed in the filter 5 and accommodated in the receiver W2 disposed at the lower part of the filtering device.

フィルタ５は、筒型で内筒の上部面は開放され下部面は閉止された構造となっていて、フランジ５１と仕切板１２の間のガスケット５２にて流体が漏れないように固定部材１３により固定されている。流体はフィルタ５の内筒を経由し、ろ過装置出口部に流れる。  The filter 5 has a cylindrical shape and has a structure in which the upper surface of the inner cylinder is open and the lower surface is closed, and the fixing member 13 prevents the fluid from leaking through the gasket 52 between the flange 51 and the partition plate 12. It is fixed. The fluid flows through the inner cylinder of the filter 5 to the outlet of the filtration device.

逆洗ノズル１は、ろ過装置の天面部よりフィルタ５の内筒内に収容し、内管２と内管２の外周を囲む外管３と外管３にノズル４を備え、内管２と外管３の間に筒状の緩衝空間２２を、外管３とノズル４の間に緩衝空間４２をそれぞれ形成してある。  The backwash nozzle 1 is accommodated in the inner cylinder of the filter 5 from the top surface of the filtration device, and the outer tube 3 and the outer tube 3 surrounding the outer periphery of the inner tube 2 and the inner tube 2 are provided with nozzles 4. A cylindrical buffer space 22 is formed between the outer tubes 3, and a buffer space 42 is formed between the outer tube 3 and the nozzles 4.

内管２は、ろ過装置天面１１にて支持し、下部開口端を閉鎖し上部開口端を逆洗用流体の入口とし、図４に示すように、外周面には複数の内孔２１を円周方向に対して等角度で上下に縦列に形成し、内孔２１の孔径と孔数は、逆洗用流体が流通する総開口面積が外管３の複数の外孔３１の総開口面積より大きくなるようにする。  The inner tube 2 is supported by the top surface 11 of the filtration device, the lower opening end is closed and the upper opening end is used as an inlet for backwashing fluid, and a plurality of inner holes 21 are formed on the outer peripheral surface as shown in FIG. The inner holes 21 are formed in vertical columns at equal angles with respect to the circumferential direction, and the inner diameter of the inner holes 21 is equal to the total opening area of the plurality of outer holes 31 of the outer tube 3. Try to be bigger.

外管３は、内管２の上部軸受６２と下部軸受６３にて回転軸線Ｃを中心に回転可能に支持し、かつ、閉鎖してある。また、逆洗用流体がノズル４に通じる面に複数の外孔３１を上下に縦列に形成し、外管３とノズル４の間の緩衝空間４２を形成する。これにより、逆洗用流体が撹拌され、ノズル孔４３からの吹き出し圧力は一段と均一化される。  The outer tube 3 is supported by the upper bearing 62 and the lower bearing 63 of the inner tube 2 so as to be rotatable about the rotation axis C, and is closed. In addition, a plurality of outer holes 31 are formed vertically in the surface where the backwashing fluid communicates with the nozzle 4 to form a buffer space 42 between the outer tube 3 and the nozzle 4. As a result, the backwash fluid is agitated, and the blowing pressure from the nozzle hole 43 is made more uniform.

外管３は、その上部に回転させる駆動手段６を備えている。駆動手段６は、駆動モーターと駆動ベルト６１とで構成し、逆洗ノズル１の外管３を回転軸線Ｃを中心に回転させる。複数の逆洗ノズル１を備える場合、それぞれ単独で回転する駆動手段６を備えても良いが、共通に備えても良い。また、外管３に流体の流れを受ける羽根を備えることで外管３を回転させることでも良い。  The outer tube 3 is provided with a driving means 6 that rotates on the upper portion thereof. The drive means 6 is composed of a drive motor and a drive belt 61, and rotates the outer tube 3 of the backwash nozzle 1 around the rotation axis C. In the case where a plurality of backwash nozzles 1 are provided, drive means 6 that rotate independently may be provided, but they may be provided in common. Alternatively, the outer tube 3 may be rotated by providing the outer tube 3 with a blade that receives a fluid flow.

ノズル４は、図２や図３（イ）に示すようにフィルタ内筒面５１に向って逆洗用流体をスリット状に吹き出すように、外管３にフィルタ５の高さ相当の長さにして、回転によりフィルタ５に接触しないフィルタ内筒面５１の近辺まで伸ばした寸法とし、吹き出す方向やスリット幅が調整できるエジェクタ−４１を形成する。  The nozzle 4 has a length corresponding to the height of the filter 5 on the outer tube 3 so as to blow back-washing fluid in a slit shape toward the filter inner cylinder surface 51 as shown in FIG. 2 and FIG. Thus, an ejector 41 having a dimension extended to the vicinity of the filter inner cylinder surface 51 that does not contact the filter 5 by rotation and capable of adjusting the blowing direction and the slit width is formed.

吹き出し方向の調整は、エジェクタ−４１の外管３の回転方向側に備えるスペーサ４４の厚さを変えて行う。また、スリット幅の調整は、左側エジェクター４１Ｌ及び右側エジェクター４１Ｒをスライドして行う。  The adjustment of the blowing direction is performed by changing the thickness of the spacer 44 provided on the rotation direction side of the outer tube 3 of the ejector 41. The slit width is adjusted by sliding the left ejector 41L and the right ejector 41R.

また、ノズル４に備えるエジェクター４１は、図３（ロ）に示すように複数の丸型エジェクターを配置することでも良く、（ハ）に示すようなスリット状のノズルでも良い。更に、外管３の回転バランスや回転速度を下げて駆動手段６の動力を下げることなどを考慮してノズル４を一対に備えても良い。  Further, the ejector 41 provided in the nozzle 4 may be a plurality of round ejectors as shown in FIG. 3B, or may be a slit-like nozzle as shown in FIG. Furthermore, a pair of nozzles 4 may be provided in consideration of lowering the rotational balance and rotational speed of the outer tube 3 to lower the power of the driving means 6.

図６は、本発明の逆洗ノズル１を取付けた実施例を示す。製薬会社の製造装置では、給気ファン７１、空調設備７２、流動造粒機７３、集塵機７４、排気ファン７５から構成された造粒設備がある。この製造装置は、給気ファン７１と排気ファン７５及び空調設備７２により空気調和された空気を流動造粒機７３内に送風し、装置内で粉を流動化させ、その中に造粒液をスプレーして粉同士を付着させて所望の大きさの粒にする。この流動造粒機７３や集塵機７４のフィルタ５内に本発明の逆洗ノズル１を配置し、高圧ファン又は空気圧縮機７６により逆洗用空気を逆洗ノズル１に送り、各フィルタ５に粉塵類が固着しないように、常時、駆動手段６により外管３を高速回転させて、図５（イ）に示すように薄く積層した状態で逆洗用空気を流して払い落とすのである。  FIG. 6 shows an embodiment in which the backwash nozzle 1 of the present invention is attached. In a manufacturing apparatus of a pharmaceutical company, there is a granulation facility including an air supply fan 71, an air conditioner 72, a fluidized granulator 73, a dust collector 74, and an exhaust fan 75. This manufacturing apparatus blows the air conditioned by the air supply fan 71, the exhaust fan 75, and the air conditioning equipment 72 into the fluidized granulator 73, fluidizes the powder in the apparatus, and the granulated liquid therein. Spray to make the particles adhere to each other to the desired size. The backwash nozzle 1 of the present invention is disposed in the filter 5 of the fluid granulator 73 or the dust collector 74, and backwash air is sent to the backwash nozzle 1 by a high-pressure fan or an air compressor 76. The outer tube 3 is always rotated at a high speed by the driving means 6 so that the kinds are not fixed, and the backwash air is made to flow in a thinly laminated state as shown in FIG.

また、図５（ロ）や（ハ）のように粉塵類が十分に積層した状態でも固着せず目詰まりしない場合は、常に逆洗用空気を流して外管３を回転する必要はなく、定期的に数秒間外管を回転させて払い落すことでも良い。  Also, as shown in FIGS. 5 (b) and 5 (c), if the dust does not stick and clog even in a sufficiently stacked state, there is no need to always flow the backwash air and rotate the outer tube 3, It is also possible to periodically wipe off the outer tube for several seconds.

また、逆洗用空気が流れることで生じる圧力損失を小さくなるように、内菅や外管の内径を大きくして、さらに、逆洗用空気が流れる内管の内孔や外管の外孔の総開口面積も大きく形成してある。これにより、空気圧縮機の約１／１０程度の動力の高圧ファンが使用できる。さらに、フィルタ５に粉塵類が殆ど積層しないうちに払い落とし、粉塵類のろ過抵抗による圧力損失の上昇を小さくして、その分だけフィルタ面積を小さく形成してある。  Also, the inner diameter of the inner tub and outer tube is increased so as to reduce the pressure loss caused by the flow of backwash air, and further, the inner hole of the inner tube and the outer hole of the outer tube through which the backwash air flows. The total opening area is also large. As a result, a high-pressure fan having about 1/10 of the power of the air compressor can be used. Further, the filter 5 is wiped off before the dust is almost laminated, and the increase in pressure loss due to the filtration resistance of the dust is reduced, so that the filter area is reduced accordingly.

また、本発明の逆洗ノズル１では単独のフィルタ５であっても、空気の流れを止める必要がなく連続的に動かすことが可能であり稼働率向上に通じる。さらに、空気の流れが一定となるため、製品品質の安定が見込める。
また、複数のフィルタを備えるなど逆洗用流体が多く必要となる場合、ろ過装置出口エリアから流体をリサイクルすることで、流体輸送機Ｗ１による流体流量Ｗの増大を避けることができる。In the backwash nozzle 1 of the present invention, even if it is a single filter 5, it is not necessary to stop the air flow and can be moved continuously, leading to an improvement in operating rate. Furthermore, since the air flow is constant, stable product quality can be expected.
Moreover, when many backwashing fluids are needed, such as having a plurality of filters, an increase in the fluid flow rate W by the fluid transporter W1 can be avoided by recycling the fluid from the filtration device outlet area.

本発明に係るろ過装置は、粉体に最適であるが、流体のろ過のみならず空調用途にも適用できる。  The filtration device according to the present invention is optimal for powders, but can be applied not only to fluid filtration but also to air conditioning applications.

１逆洗ノズル
１１支持部材
１２仕切板
１３固定部材
２ 内管
２１内孔
２２緩衝空間
３ 外管
３１外孔
３２外管回転方向
４ ノズル
４１エジェクター
４１Ｌエジェクター（左側ノズル＆ディフューザー）
４１Ｒエジェクター（右側ノズル＆ディフューザー）
４２緩衝空間
４３ノズル孔
４４スペーサ
５ フィルタ
５１フランジ
５２ガスケット
６ 駆動手段
６１駆動ベルト
６２上部軸受
６３下部軸受
７１給気ファン
７２空調設備
７３流動造粒機
７４集塵機
７５排気ファン
７６高圧ファン又はコンプレッサー
７７ノズル
ＡＩＲ圧縮空気
Ｃ 回転軸線
Ｎ 逆洗用流体流量
ｎ 吸込流体流量
Ｎ１逆洗流体輸送機
Ｗ 流体流量
Ｗ１流体輸送機
Ｗ２受容器1 Backwash nozzle 11 Support member 12 Partition plate 13 Fixing member 2 Inner tube 21 Inner hole 22 Buffer space 3 Outer tube 31 Outer hole 32 Outer tube rotation direction 4 Nozzle 41 Ejector 41L Ejector (Left nozzle & diffuser)
41R ejector (right nozzle & diffuser)
42 buffer space 43 nozzle hole 44 spacer 5 filter 51 flange 52 gasket 6 driving means 61 driving belt 62 upper bearing 63 lower bearing 71 air supply fan 72 air conditioning equipment 73 fluid granulator 74 dust collector 75 exhaust fan 76 high pressure fan or compressor 77 nozzle AIR Compressed Air C Rotation Axis N Backwash Fluid Flow Rate n Suction Fluid Flow Rate N1 Backwash Fluid Transporter W Fluid Flow Rate W1 Fluid Transporter W2 Receptor

Claims (3)

粉塵類をろ過する筒状のフィルタ５の中に収容されると共にろ過装置天板面１１で支持される逆洗ノズル１は、内管２と外管３と外管３に形成したノズル４とで構成し、内管２と外管３の間に筒状の緩衝空間２２を、外管３とノズル４の間に緩衝空間４２を形成し、内管２の外周面には内孔２１を、外管３からノズル４へ通じる面には外孔３１を、ノズル４には逆洗用流体をフィルタ内筒面５１に向って吹き出すようにエジェクター４１をそれぞれ形成し、外管３を内管２に対して回転軸線Ｃを中心にして回転するように上部軸受６２と下部軸受６３と駆動手段６を備えていることを特徴とするろ過装置。  The backwash nozzle 1 that is housed in a cylindrical filter 5 that filters dust and supported by the top surface 11 of the filtration device includes a nozzle 4 formed on the inner tube 2, the outer tube 3, and the outer tube 3. The cylindrical buffer space 22 is formed between the inner tube 2 and the outer tube 3, the buffer space 42 is formed between the outer tube 3 and the nozzle 4, and the inner hole 21 is formed on the outer peripheral surface of the inner tube 2. An outer hole 31 is formed on the surface leading from the outer tube 3 to the nozzle 4, and an ejector 41 is formed on the nozzle 4 so as to blow back washing fluid toward the filter inner tube surface 51. A filtration device comprising an upper bearing 62, a lower bearing 63, and a driving means 6 so as to rotate about a rotation axis C with respect to 2. フィルタ内筒面５１に向って逆洗用流体をスリット状に吹き出すように、外管３にフィルタ５の高さ相当の長さを有し、回転によりにフィルタ５に接触しないフィルタ内筒面５１の近辺まで伸ばしたノズル４を形成し、吹き出す方向やスリット幅が調整できるエジェクタ−４１を備えていることを特徴とする請求項１記載のろ過装置。  The outer tube 3 has a length corresponding to the height of the filter 5 so that the backwashing fluid is blown out in a slit shape toward the filter inner tube surface 51, and the filter inner tube surface 51 does not contact the filter 5 by rotation. The filtration device according to claim 1, further comprising an ejector (41) that forms a nozzle (4) that extends to the vicinity of the nozzle and that can adjust a blowing direction and a slit width. 逆洗用流体が流通する内管２の複数の内孔２１の総開口面積が、外管３の複数の外孔３１の総開口面積より大きく形成し、外管３の複数の外孔３１の総開口面積が、エジェクター４１のノズル孔４３の総開口面積より大きく形成してあることを特徴とする請求項１又は２記載のろ過装置。  The total opening area of the plurality of inner holes 21 of the inner tube 2 through which the backwash fluid flows is larger than the total opening area of the plurality of outer holes 31 of the outer tube 3, and the plurality of outer holes 31 of the outer tube 3 are formed. The filtration device according to claim 1, wherein the total opening area is formed larger than the total opening area of the nozzle holes 43 of the ejector 41.
JP2012052304A 2011-02-21 2012-02-21 Filtration apparatus Pending JP2012187578A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015098808A1 (en) * 2013-12-27 2015-07-02 住友電気工業株式会社 Filtration device, ballast water treatment method, and ballast water treatment device using said filtration device
KR101846398B1 (en) * 2016-11-16 2018-04-06 위더스이엠티(주) Bag filter type dust collector
JP2019534143A (en) * 2016-10-18 2019-11-28 ハグ エンジニアリング アクチェンゲゼルシャフト Soot filter and method for driving soot filter
CN117619045A (en) * 2024-01-25 2024-03-01 四川贝克森云灌溉科技有限公司 Reservoir composite filter and use method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015098808A1 (en) * 2013-12-27 2015-07-02 住友電気工業株式会社 Filtration device, ballast water treatment method, and ballast water treatment device using said filtration device
JP2015123424A (en) * 2013-12-27 2015-07-06 住友電気工業株式会社 Filter device, ballast water treatment apparatus using the same and treatment method of ballast water
CN105246570A (en) * 2013-12-27 2016-01-13 住友电气工业株式会社 Filtration device, ballast water treatment method, and ballast water treatment device using said filtration device
CN105246570B (en) * 2013-12-27 2017-03-15 住友电气工业株式会社 Defecator, ballast water processing and the ballast water treatment equipment using defecator
JP2019534143A (en) * 2016-10-18 2019-11-28 ハグ エンジニアリング アクチェンゲゼルシャフト Soot filter and method for driving soot filter
KR101846398B1 (en) * 2016-11-16 2018-04-06 위더스이엠티(주) Bag filter type dust collector
CN117619045A (en) * 2024-01-25 2024-03-01 四川贝克森云灌溉科技有限公司 Reservoir composite filter and use method thereof

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