JP4549770B2 - Screw conveyor - Google Patents

Screw conveyor Download PDF

Info

Publication number
JP4549770B2
JP4549770B2 JP2004230328A JP2004230328A JP4549770B2 JP 4549770 B2 JP4549770 B2 JP 4549770B2 JP 2004230328 A JP2004230328 A JP 2004230328A JP 2004230328 A JP2004230328 A JP 2004230328A JP 4549770 B2 JP4549770 B2 JP 4549770B2
Authority
JP
Japan
Prior art keywords
spiral blade
moisture
screw
notch
screw conveyor
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.)
Expired - Lifetime
Application number
JP2004230328A
Other languages
Japanese (ja)
Other versions
JP2006044902A (en
Inventor
志郎 小高
貴幸 西塚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maezawa Industries Inc
Original Assignee
Maezawa Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maezawa Industries Inc filed Critical Maezawa Industries Inc
Priority to JP2004230328A priority Critical patent/JP4549770B2/en
Publication of JP2006044902A publication Critical patent/JP2006044902A/en
Application granted granted Critical
Publication of JP4549770B2 publication Critical patent/JP4549770B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Screw Conveyors (AREA)

Description

本発明は、下水の沈砂池で集められた砂やし渣、沈殿池で集められた汚泥等を移送するスクリューコンベアに係り、特に水切り機能を備えたスクリューコンベアに関する。   The present invention relates to a screw conveyor for transferring sand and sand collected in a sewage settling basin, sludge collected in a settling basin, and more particularly to a screw conveyor having a draining function.

下水の沈砂池で集められた砂やし渣、沈殿池で集められた汚泥等の移送には、スクリューコンベアが多く利用されている。スクリューコンベアは、樋状または円筒状のケーシングの中に、シャフトの外周に螺旋羽根を取り付けたスクリューを挿入し、該スクリューを回転させることにより、ケーシングの一端側から他端側へ汚泥等を搬送するものである（例えば、特許文献１参照）。
特開平１０−３５８５２号公報 Screw conveyors are often used to transfer sand and sand collected in the sewage sedimentation basin and sludge collected in the sedimentation basin. A screw conveyor inserts a screw with spiral blades attached to the outer periphery of a shaft into a bowl-like or cylindrical casing, and rotates the screw to convey sludge and the like from one end of the casing to the other. (For example, refer to Patent Document 1).
Japanese Patent Laid-Open No. 10-35852

ところで、スクリューコンベアで砂や汚泥を移送する場合、多量の水分も同時に移送されてしまうという問題があった。即ち、し渣や汚泥等はヘドロのような状態で粘性を有しており、スクリューとケーシングの隙間が汚泥等によって塞がれてしまうため、途中での水分の逃げ場が無く、水分がそのまま汚泥等と一緒に移送されていた。従って、水分は本来は沈砂池や沈殿池に戻したいのにも拘わらず、それができなかった。   By the way, when sand and sludge are transferred by a screw conveyor, there is a problem that a large amount of moisture is transferred at the same time. That is, the residue and sludge are viscous in a sludge-like state, and the gap between the screw and the casing is blocked by the sludge. And so on. Therefore, although water originally wanted to be returned to a sand basin or sedimentation basin, it was not possible to do so.

本発明は、上記事情を考慮し、できるだけ水分を返送できるようにして、水を切った状態で被搬送物を移送できるようにしたスクリューコンベアを提供することを目的とする。   In view of the above circumstances, an object of the present invention is to provide a screw conveyor which can return moisture as much as possible and can transfer a transported object in a state where water is cut off.

請求項１の発明は、樋状または円筒状のケーシングの中に、シャフトの外周に螺旋羽根を取り付けたスクリューを挿入し、該スクリューを回転させることにより、水分を含んだ
汚泥等の被搬送物を、軸方向の一端側から他端側へ搬送するスクリューコンベアにおいて、前記スクリューの軸方向の一部に、搬送中の被搬送物の中の水分の逆流を促す領域を形成し、該領域の搬送方向における基端部に、逆流によりレベルが上昇した水分を前記ケーシングの側壁から外部に排出する排水口を設け、
前記水分の逆流を促す領域を形成する手段として、該領域の先端側に位置する前記螺旋羽根上に、主として水分の流通を可能にする切欠を設け、
前記切欠を設けた位置の前側から後側にかけての所定の範囲を、前記螺旋羽根の中間位置に副螺旋羽根を設けることにより２条スクリュー部として構成し、前記副螺旋羽根は、前記切欠を通して逆流してきた被搬送物を受け止めて切欠の前方の螺旋羽根上に送り込める長さに設定し、且つ、前記螺旋羽根よりも水分の流通性を良くしてあることを特徴とする。
According to the first aspect of the present invention, a screw having a spiral blade attached to the outer periphery of a shaft is inserted into a bowl-shaped or cylindrical casing, and the screw is rotated so that a conveyed object such as sludge containing moisture In the screw conveyor that conveys from one end side to the other end side in the axial direction, an area that promotes the backflow of moisture in the conveyed object is formed in a part of the axial direction of the screw, At the base end in the transport direction, a drain outlet is provided to discharge moisture whose level has been increased by backflow to the outside from the side wall of the casing ,
As a means for forming a region that promotes the backflow of moisture, a notch that mainly allows the flow of moisture is provided on the spiral blade located on the tip side of the region,
A predetermined range from the front side to the rear side of the position where the notch is provided is configured as a two-thread screw portion by providing a sub-spiral blade at an intermediate position of the spiral blade, and the sub-spiral blade flows backward through the notch. The length is set so as to be able to receive the object to be conveyed and to be fed onto the spiral blade in front of the notch, and the water flow is better than that of the spiral blade .

請求項２の発明は、請求項１において、前記副螺旋羽根は、前記螺旋羽根よりも外径を小さくして前記ケーシングとの隙間を大きくすることで、水分の流通性を良くしてあり、該隙間の閉塞防止のために前記副螺旋羽根の外周にブラシを設けたことを特徴とする。
The invention of claim 2 is characterized in that, in claim 1 , the auxiliary spiral blade has an outer diameter smaller than that of the spiral blade and a gap between the casing and the casing is increased, thereby improving water circulation. In order to prevent the gap from being closed, a brush is provided on the outer periphery of the auxiliary spiral blade.

請求項３の発明は、請求項１において、前記副螺旋羽根は、羽根面を網状に形成することで、水分の流通性を良くしてあることを特徴とする。
A third aspect of the present invention is characterized in that, in the first aspect , the sub-spiral blade has a meshed surface of the blade, thereby improving water circulation.

請求項１の発明によれば、スクリューの軸方向の一部に、搬送中の被搬送物の中の水分の逆流を促す領域を形成してあるので、水分を多量に含んだ汚泥等を搬送した場合、前記領域を通過する際に、汚泥等に含まれる水分を、螺旋羽根によって搬送せずに、積極的に逆流させることができる。そして、逆流により前記領域中でレベルが上昇した水分だけを、ケーシングの側壁に設けた排水口によりケーシング外部に排出することができる。従って、返送する水分に汚泥等が混じることが少ない。このように、搬送途中で無理なく水分だけを返送することができるので、水分を切った状態で汚泥等を移送先に効率よく搬送することができる。   According to the first aspect of the present invention, since a region for promoting the back flow of moisture in the object being conveyed is formed in a part of the axial direction of the screw, the sludge containing a large amount of moisture is conveyed. In this case, when passing through the region, the moisture contained in the sludge can be positively flowed back without being conveyed by the spiral blade. And only the water | moisture content which the level raised in the said area | region by the backflow can be discharged | emitted outside the casing by the drain outlet provided in the side wall of the casing. Accordingly, sludge and the like are rarely mixed with the water to be returned. Thus, since only moisture can be returned without difficulty during conveyance, sludge and the like can be efficiently conveyed to the transfer destination in a state where moisture is cut.

また、水分の逆流を促す領域を形成する手段として、螺旋羽根上に切欠を設けているので、切欠を通して、粘性の小さい水分を素早く、しかも確実に逆流させることができる。そして、排水口から水分のみを返送することができる。
 In addition , since the notch is provided on the spiral blade as means for forming the region that promotes the backflow of moisture, the low-viscosity water can quickly and surely flow back through the notch. And only water | moisture content can be returned from a drain outlet.

しかし、実際には、切欠の大きさにもよるが、切欠を通して汚泥等の固形物も逆流してしまう。そこで、それらの固形物を捕捉するために副螺旋羽根を設けている。このように副螺旋羽根を設けて２条スクリュー部を構成することにより、切欠から脱落した汚泥等を確実に捕捉して、切欠の先方の螺旋羽根上に送り届けることができる。また、副螺旋羽根は、通常の螺旋羽根よりも水分の流通性を良くしてあるので、副螺旋羽根による搬送中に水分のみを逆流させることができる。
However, in reality, depending on the size of the cutout, solids such as sludge also flow backward through the cutout. Therefore, in order to capture its these solids are provided auxiliary spiral vane. Thus, by providing the sub-spiral blade and configuring the two-thread screw portion, it is possible to reliably capture sludge and the like dropped off from the notch, and deliver it to the spiral blade ahead of the notch. Further, since the sub-spiral blade has a better water flowability than the normal spiral blade, only the water can flow back during the conveyance by the sub-spiral blade.

請求項２の発明によれば、副螺旋羽根の外径を小さくしてケーシングとの隙間を大きくすることで、水分の流通性を良くしてあり、しかも、副螺旋羽根の外周にブラシを設けて隙間の閉塞を防止しているため、副螺旋羽根とケーシングの隙間を通して水分を確実に逆流させることができる。
According to the invention of claim 2 , the flow of moisture is improved by reducing the outer diameter of the auxiliary spiral blade and increasing the gap with the casing, and a brush is provided on the outer periphery of the auxiliary spiral blade. Since the gap is prevented from being blocked, the moisture can be reliably backflowed through the gap between the auxiliary spiral blade and the casing.

請求項３の発明によれば、副螺旋羽根の羽根面を網状に形成することで、水分の流通性を良くしてあるので、網目を通して水分を確実に逆流させることができる。 According to the invention of claim 3 , since the water flow is improved by forming the blade surface of the sub-spiral blade in a net shape, the water can be reliably flowed back through the mesh.

以下、本発明の実施形態を図面を参照して説明する。
図１（ａ）は実施形態のスクリューコンベアの要部の透視側面図、（ｂ）は（ａ）のＩｂ−Ｉｂ矢視断面図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Fig.1 (a) is a see-through | perspective side view of the principal part of the screw conveyor of embodiment, (b) is Ib-Ib arrow sectional drawing of (a).

このスクリューコンベアは、樋状のケーシング１の中に、シャフト３の外周に一定ピッチの螺旋羽根４を取り付けたスクリュー２を挿入し、スクリュー２を矢印Ａ方向に回転させることにより、水分を含んだ汚泥等の被搬送物を、軸方向の一端側（低い側）から他端側（高い側）へ矢印Ｂのように搬送するようにしたものである。なお、ケーシング１の上面開口はカバー１１により塞がれている。   This screw conveyor contains moisture by inserting a screw 2 in which spiral blades 4 having a constant pitch are attached to the outer periphery of a shaft 3 into a bowl-shaped casing 1 and rotating the screw 2 in the direction of arrow A. An object to be conveyed such as sludge is conveyed as indicated by an arrow B from one end side (low side) in the axial direction to the other end side (high side). Note that the upper surface opening of the casing 1 is closed by a cover 11.

スクリュー２の軸方向の一部には、搬送中の被搬送物の中の水分の逆流を促す領域１８が形成してあり、その領域１８の搬送方向における基端部９に、逆流によりレベルが上昇した水分をケーシング１の側壁から外部に排出する排水口１０が設けてある。水分の逆流を促す領域１８を形成する手段として、該領域１８の先端側に位置する螺旋羽根４上に、主として水分の流通を可能にする切欠５が設けられている。切欠５は周方向の一部に設けられており、螺旋羽根４が一回転する間の切欠５が被搬送物中に位置するときだけ、切欠５を通して被搬送物が矢印Ｂと反対方向に逆流する。   In a part of the screw 2 in the axial direction, a region 18 that promotes the backflow of moisture in the object being transported is formed, and the level of the region 18 at the base end portion 9 in the transport direction is reduced by the backflow. A drain port 10 is provided for discharging the raised moisture from the side wall of the casing 1 to the outside. As a means for forming the region 18 that promotes the backflow of moisture, a notch 5 that mainly allows the circulation of moisture is provided on the spiral blade 4 located on the tip side of the region 18. The notch 5 is provided in a part of the circumferential direction, and the object to be conveyed flows backward through the notch 5 in the direction opposite to the arrow B only when the notch 5 is positioned in the object to be conveyed while the spiral blade 4 rotates once. To do.

このように切欠５を通して汚泥等の固形物が逆流すると、手前側の螺旋羽根４上に溜まる固形物が増えてしまう。そこで、切欠５を通して逆流してくる汚泥等を捕捉するために、副螺旋羽根６が設けられている。即ち、切欠５を設けた位置の前側から後側にかけての所定の範囲が、通常の螺旋羽根４の中間位置に副螺旋羽根６を設けることによって、２条スクリュー部１６として構成されている。なお、副螺旋羽根６は、切欠５を通して逆流してきた被搬送物を受け止めて、切欠５の前方の螺旋羽根４上に送り込める長さに設定されている。従って、切欠５から脱落した汚泥等を確実に捕捉して、切欠５の先方の螺旋羽根４上に送り届けることができる。   When solids such as sludge flow backward through the notches 5 in this way, the solids that accumulate on the front spiral blade 4 increase. Therefore, a sub-spiral blade 6 is provided to capture sludge and the like flowing back through the notch 5. That is, a predetermined range from the front side to the rear side of the position where the notch 5 is provided is configured as a two-thread screw portion 16 by providing the auxiliary spiral blade 6 at an intermediate position of the normal spiral blade 4. The sub-spiral blade 6 is set to a length that can receive the conveyed object that has flowed back through the notch 5 and feed it onto the spiral blade 4 in front of the notch 5. Therefore, sludge and the like that have dropped off from the notch 5 can be reliably captured and delivered onto the spiral blade 4 at the tip of the notch 5.

また、副螺旋羽根６は、通常の螺旋羽根４よりも外径を小さくしてケーシング１との隙間を大きくすることで、通常の螺旋羽根４よりも水分の流通性を良くしてある。また、副螺旋羽根６の外周には、隙間の閉塞防止のためにブラシ７を設けている。このように、通常の螺旋羽根４よりも水分の流通性を良くしてあるので、副螺旋羽根６による搬送中に水分のみを逆流させることができる。   Further, the sub-spiral blade 6 has a smaller outer diameter than that of the normal spiral blade 4 and a gap between the auxiliary spiral blade 6 and the casing 1, thereby improving the water flowability than the normal spiral blade 4. In addition, a brush 7 is provided on the outer periphery of the auxiliary spiral blade 6 to prevent the gap from being closed. Thus, since the water | moisture content of the water | moisture content is improved rather than the normal spiral blade 4, only a water | moisture content can be made to flow backward during conveyance by the sub spiral blade 6. FIG.

以上の構成のスクリューコンベアによれば、スクリュー２の軸方向の一部に、搬送中の被搬送物の中の水分の逆流を促す領域１８を形成してあるので、水分を多量に含んだ汚泥等を搬送した場合に、前記領域を通過する段階で、汚泥等に含まれる水分を、螺旋羽根４によって搬送せずに、積極的に逆流させることができる。そして、逆流により前記領域中でレベルが上昇した水分だけを、ケーシング１の側壁に設けた排水口１０からケーシング外部に排出することができる。従って、返送する水分に汚泥等が混じることが少なく、搬送途中で無理なく水分だけを返送することができ、水分を切った状態で汚泥等を移送先に効率よく搬送することができる。特に、水分の逆流を促す領域１８を形成する手段として、螺旋羽根４上に切欠５を設けているので、切欠５を通して、粘性の小さい水分を素早く、しかも確実に逆流させることができ、その結果として排水口１０から水分のみを返送することができる。   According to the screw conveyor having the above configuration, the region 18 that promotes the reverse flow of moisture in the object being conveyed is formed in a part of the screw 2 in the axial direction, so sludge containing a large amount of moisture. Etc., the water contained in the sludge and the like can be positively flowed back without being conveyed by the spiral blade 4 at the stage of passing through the region. And only the water whose level has risen in the region due to the backflow can be discharged to the outside of the casing from the drain port 10 provided on the side wall of the casing 1. Therefore, sludge and the like are rarely mixed with the water to be returned, and only the water can be returned without difficulty during the conveyance, and the sludge and the like can be efficiently conveyed to the transfer destination with the moisture cut. In particular, since the notch 5 is provided on the spiral blade 4 as means for forming the region 18 that promotes the backflow of moisture, the low viscosity water can be quickly and surely flowed back through the notch 5, and as a result. As a result, only water can be returned from the drain port 10.

なお、上記実施形態では、副螺旋羽根６の外径を小さくして外周にブラシ７を設けることにより、水分の流通性を良くした場合について述べたが、副螺旋羽根６の羽根面を網状に形成することで、水分の流通性を良くしてもよい。また、ケーシングとしては、上面が開放した樋状のケーシング１以外に、全周が閉じた円筒状のケーシングを使用してもよい。   In the above-described embodiment, the case where the outer spiral blade 6 is reduced in diameter and the brush 7 is provided on the outer periphery to improve the flow of moisture has been described. However, the blade surface of the auxiliary spiral blade 6 has a mesh shape. By forming, the flowability of moisture may be improved. Further, as the casing, in addition to the bowl-shaped casing 1 whose upper surface is open, a cylindrical casing whose entire circumference is closed may be used.

本発明の実施形態のスクリューコンベアの構成図で、（ａ）はスクリューコンベアの要部の透視側面図、（ｂ）は（ａ）のＩｂ−Ｉｂ矢視断面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram of the screw conveyor of embodiment of this invention, (a) is a perspective side view of the principal part of a screw conveyor, (b) is Ib-Ib arrow sectional drawing of (a).

符号の説明Explanation of symbols

１ ケーシング
２ スクリュー
３ シャフト
４ 螺旋羽根
５ 切欠
６ 副螺旋羽根
７ ブラシ
９ 基端部
１０ 排水口
１６ ２条スクリュー部
１８ 水分の逆流を促す領域 DESCRIPTION OF SYMBOLS 1 Casing 2 Screw 3 Shaft 4 Spiral blade 5 Notch 6 Sub spiral blade 7 Brush 9 Base end portion 10 Drain port 16 Two-thread screw portion 18 Area for promoting reverse flow of moisture

Claims (3)

樋状または円筒状のケーシングの中に、シャフトの外周に螺旋羽根を取り付けたスクリューを挿入し、該スクリューを回転させることにより、水分を含んだ汚泥等の被搬送物を、軸方向の一端側から他端側へ搬送するスクリューコンベアにおいて、
前記スクリューの軸方向の一部に、搬送中の被搬送物の中の水分の逆流を促す領域を形成し、該領域の搬送方向における基端部に、逆流によりレベルが上昇した水分を前記ケーシングの側壁から外部に排出する排水口を設け、
前記水分の逆流を促す領域を形成する手段として、該領域の先端側に位置する前記螺旋羽根上に、主として水分の流通を可能にする切欠を設け、
前記切欠を設けた位置の前側から後側にかけての所定の範囲を、前記螺旋羽根の中間位置に副螺旋羽根を設けることにより２条スクリュー部として構成し、前記副螺旋羽根は、前記切欠を通して逆流してきた被搬送物を受け止めて切欠の前方の螺旋羽根上に送り込める長さに設定し、且つ、前記螺旋羽根よりも水分の流通性を良くしてあることを特徴とするスクリューコンベア。 Insert a screw with spiral blades attached to the outer periphery of the shaft into a bowl-shaped or cylindrical casing, and rotate the screw to move the object to be transported such as sludge containing moisture to one end side in the axial direction. In the screw conveyor that conveys from the other end side,
A region that promotes the backflow of moisture in the object being transported is formed in a part of the screw in the axial direction, and moisture that has increased in level due to the backflow is formed at the base end portion in the transport direction of the region. A drain outlet is provided to discharge from the side wall of the
As a means for forming a region that promotes the backflow of moisture, a notch that mainly allows the flow of moisture is provided on the spiral blade located on the tip side of the region,
A predetermined range from the front side to the rear side of the position where the notch is provided is configured as a two-thread screw portion by providing a sub-spiral blade at an intermediate position of the spiral blade, and the sub-spiral blade flows backward through the notch. A screw conveyor characterized in that it is set to a length capable of receiving the conveyed object and feeding it onto the spiral blade in front of the notch, and has a better water circulation than the spiral blade . 前記副螺旋羽根は、前記螺旋羽根よりも外径を小さくして前記ケーシングとの隙間を大きくすることで、水分の流通性を良くしてあり、該隙間の閉塞防止のために前記副螺旋羽根の外周にブラシを設けたことを特徴とする請求項１に記載のスクリューコンベア。The auxiliary spiral blade has a smaller outer diameter than that of the spiral blade to increase the gap with the casing, thereby improving the flowability of moisture. In order to prevent the gap from being blocked, the auxiliary spiral blade The screw conveyor according to claim 1, wherein a brush is provided on an outer periphery of the screw conveyor. 前記副螺旋羽根は、羽根面を網状に形成することで、水分の流通性を良くしてあることを特徴とする請求項１に記載のスクリューコンベア。2. The screw conveyor according to claim 1, wherein the sub-spiral blade has a meshed surface, thereby improving moisture circulation.
JP2004230328A 2004-08-06 2004-08-06 Screw conveyor Expired - Lifetime JP4549770B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004230328A JP4549770B2 (en) 2004-08-06 2004-08-06 Screw conveyor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004230328A JP4549770B2 (en) 2004-08-06 2004-08-06 Screw conveyor

Publications (2)

Publication Number Publication Date
JP2006044902A JP2006044902A (en) 2006-02-16
JP4549770B2 true JP4549770B2 (en) 2010-09-22

Family

ID=36023920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004230328A Expired - Lifetime JP4549770B2 (en) 2004-08-06 2004-08-06 Screw conveyor

Country Status (1)

Country Link
JP (1) JP4549770B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104828488A (en) * 2015-05-08 2015-08-12 青岛理工大学 Inside and outside double helix formula cylinder conveyer

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4664958B2 (en) * 2007-11-29 2011-04-06 株式会社 ダムドレ Pipeline transfer system and pipeline transfer method
CN108515059A (en) * 2018-04-27 2018-09-11 上海迈正环境科技有限公司 A kind of helical-blade sheet body with hairbrush and spliced helical blade
CN115211761A (en) * 2021-04-16 2022-10-21 苏州新清松智能科技有限公司 Ground cleaning equipment
CN115593864A (en) * 2021-07-10 2023-01-13 山东龙翔节能科技有限公司（Cn） Transport stable wet mortar conveyor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61136811A (en) * 1984-12-07 1986-06-24 Marusei Jukogyo Kk Screw conveyor having water draining off means
JPS62240515A (en) * 1986-04-14 1987-10-21 Susumu Akamatsu Device for regenerating waste plastic
JPH07294086A (en) * 1994-04-28 1995-11-10 Kurimoto Ltd Continuous immersion cooling device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61136811A (en) * 1984-12-07 1986-06-24 Marusei Jukogyo Kk Screw conveyor having water draining off means
JPS62240515A (en) * 1986-04-14 1987-10-21 Susumu Akamatsu Device for regenerating waste plastic
JPH07294086A (en) * 1994-04-28 1995-11-10 Kurimoto Ltd Continuous immersion cooling device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104828488A (en) * 2015-05-08 2015-08-12 青岛理工大学 Inside and outside double helix formula cylinder conveyer

Also Published As

Publication number Publication date
JP2006044902A (en) 2006-02-16

Similar Documents

Publication Publication Date Title
JP4549770B2 (en) Screw conveyor
EP2736648B1 (en) Centrifuge and discharge port member of a centrifuge for power reduction
RU2068535C1 (en) Device for metered transportation of loose material
US7156801B2 (en) Decanter centrifuge with a screw conveyor having a varying pitch
SE509400C2 (en) decanter centrifuge
EP3276178A1 (en) Centrifugal pump
JP2009248293A (en) Overflow type chips-cutting oil separation coil chip conveyor
AU2006297052B2 (en) Method and device for charging processing plants
JP2005036778A (en) Impeller and pump for sewage disposal having the impeller
CN111841086A (en) Sand setting device
US3596751A (en) Device for supplying material to the entrance end of a conveyor comprising a screw and a conduit therefor
JP7154925B2 (en) Screw separator and wastewater treatment system
KR102276539B1 (en) screw conveyor have a back-draft prevention function
EP3991959A1 (en) Screw-type separation apparatus, caging, effluent treatment system, and cleaning method for screw-type separation apparatus
JP2022155607A (en) Centrifugal dehydrator and sludge dehydration method
US10793368B2 (en) Screw conveyer
KR102313974B1 (en) Ash handling system and ash handling method
KR102238448B1 (en) Dust removing apparatus, water treating facilities, installing method of dust removing apparatus
TWI797031B (en) Mixed liquid separation device
KR101231066B1 (en) Centrifugal dehydrater having distributing room of antiblocking structure
JP2022123769A (en) Powder carrying device and powder feeder using the same
JP2005240763A (en) Fluid pump
US7438808B2 (en) Sand catcher
PL232472B1 (en) Stream separator for liquids that contain solid impurities, placed in the intermediate pumping station separator
JP2006198518A (en) Screw type solid/liquid separator

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070508

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100119

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100218

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100323

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100706

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100707

R150 Certificate of patent or registration of utility model

Ref document number: 4549770

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130716

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130716

Year of fee payment: 3