JP2005349347A - Apparatus for mixing earth and sand gathered on-site - Google Patents

Apparatus for mixing earth and sand gathered on-site Download PDF

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JP2005349347A
JP2005349347A JP2004174776A JP2004174776A JP2005349347A JP 2005349347 A JP2005349347 A JP 2005349347A JP 2004174776 A JP2004174776 A JP 2004174776A JP 2004174776 A JP2004174776 A JP 2004174776A JP 2005349347 A JP2005349347 A JP 2005349347A
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blade
mixed material
blades
stirring
sand
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JP4526877B2 (en
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Morio Mitsuda
守雄 満田
Yasuo Yoneda
安夫 米田
Tetsuya Hironaka
哲也 廣中
Katsuo Kimata
克夫 木全
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Okumura Corp
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Okumura Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for mixing the earth and sand gathered on-site, the clogging frequency of which is decreased so that the resistance when an agitator is rotated can be lowered and the deformation of the agitator can be prevented. <P>SOLUTION: This apparatus is arranged aslant so that the upper end is made higher than the lower end and provided with: a charge part 1a which is arranged at the upper end and in which a mixed material containing the earth and sand gathered on-site is thrown; a discharge part 1b arranged at the lower end; a conveying passage 1 for dropping/conveying the mixed material from the charge part to the discharge part while mixing it; a plurality of agitators 2 arranged in the conveying passage along the dropping/conveying direction for scooping up/mixing the mixed material to the direction opposite to the dropping/conveying direction; and a curved plane 3a formed on the bottom surface 1c of the conveying passage along the rotational tracks of agitators for guiding the mixed material toward agitators. Each of agitators has a plurality of blades 5 which are arranged along the axial direction of a rotary shaft 4 at suitable intervals and extended radially from the rotary shaft to the outside in the radial direction. A gap α between the tip 5a of each of the blades 5 and the curved plane is set to be ≥1/2 of the maximum particle size of the earth and sand gathered on-site. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、噛み込みの発生を減少させることが可能であるとともに、撹拌翼の回転抵抗の減少や撹拌翼の変形防止を図り得る現地採取土砂混合装置に関する。   The present invention relates to an on-site sampling soil mixing apparatus that can reduce the occurrence of biting and can reduce the rotational resistance of a stirring blade and prevent deformation of the stirring blade.

現地で採取した土砂を利用し、この土砂にセメントや水を混合することで得られる現地複合材料を用いるＣＳＧ（Cemented Sand and Gravel）工法に適用可能な混合装置としては、例えば特許文献１や特許文献２に開示されているように、従来種々のものが知られている。   As a mixing device applicable to a CSG (Cemented Sand and Gravel) method using a local composite material obtained by mixing soil and sand collected in the field with cement and water, for example, Patent Document 1 and Patent As disclosed in Document 2, various types are conventionally known.

この種の混合装置に関し、本願出願人は先に、製造コストの削減を図れるとともに、連続して効率よく混合でき、さらに高品質な現地複合材料を製造できるようにすることを企図して、上端の搬入口と下端の搬出口とを備えて傾斜状に設置される流下搬送体、この流下搬送体に直交させて並行に複数個配置し、回転軸の周辺にパドルを軸方向と周辺方向に所定の間隔で放射状に植設して成る撹拌翼、この撹拌翼に対峙させてパドル先端との間に所定の間隔を確保する凹部を構成するとともにこの凹部の両側に平坦部を配置して成る混合部及び複数の撹拌翼を連結しながら傾斜方向と反対方向に回転させる撹拌翼駆動機から構成される「現地複合材料混合装置」を出願している（特願２００３−２０５９２５参照）。   With regard to this type of mixing device, the applicant of the present invention has first tried to reduce the manufacturing cost, to continuously and efficiently mix, and to manufacture a high-quality local composite material. A downstream transport body installed in an inclined manner with a transport inlet and a lower transport outlet, and a plurality of parallel transporters arranged in parallel perpendicular to the downstream transport body, with paddles in the axial and peripheral directions around the rotating shaft A stirrer blade that is radially planted at a predetermined interval, and a concave portion that secures a predetermined interval between the stirrer blade and the paddle tip, and flat portions are disposed on both sides of the concave portion. An application has been filed for a “local composite material mixing device” comprising a mixing blade and a stirring blade drive that rotates the mixing blade and a plurality of stirring blades in the direction opposite to the inclination direction (see Japanese Patent Application No. 2003-205925).

この混合装置では、流下搬送体が傾斜されていることで重力の作用により搬入口から搬出口へと流下搬送される混合材料を、多段に配置した撹拌翼で流下搬送方向とは反対側へ掻き上げて混合しつつ、掻き上げた混合材料の一部を流下搬送方向下流へと投下して、撹拌翼を経過した混合材料と再度混合させるようにしていて、特に、各撹拌翼近傍には、パドル先端との間に所定の間隔を確保して、流下搬送される混合材料を減速させ、かつまた撹拌翼との接触距離（混合距離）を長くすることができる凹部を備えて、混合作用をさらに促進できるようにしている。
特開平９−１９５３１１号公報 特開平１０−６８１４１号公報 In this mixing apparatus, the mixed material that is conveyed down from the carry-in port to the carry-out port due to the action of gravity due to the tilted down flow carrier is scraped to the opposite side of the flow-down conveyance direction by the stirring blades arranged in multiple stages. While stirring and mixing, a part of the mixed material that has been scraped is dropped to the downstream in the downstream conveyance direction, and mixed with the mixed material that has passed through the stirring blades. Provided with a recess that can secure a predetermined distance from the paddle tip, decelerate the mixed material transported down, and lengthen the contact distance (mixing distance) with the stirring blade. We are trying to promote it further.
Japanese Patent Laid-Open No. 9-195311 JP-A-10-68141

ところで、現地で採取される土砂はその粒径寸法がまちまちで異なっている。上記先願にかかる現地複合材料混合装置にあっては、混合促進効果の高い凹部を備え、この凹部に沿って撹拌翼で土砂を掻き上げるようにしていて、当該凹部とパドルとの所定の間隔を、噛み込み防止のためにできるだけ狭めるようにすると、粒径寸法が様々な土砂によって却って噛み込み現象が頻発するおそれがあり、また噛み込みに近い混合操作状態となって撹拌翼の回転抵抗も大きくなって駆動源として大型化のものが必要となったり、さらには撹拌翼についても変形が生じるおそれがあるなどの各種課題があった。   By the way, the earth and sand collected locally vary in particle size. In the local composite material mixing apparatus according to the prior application, a concave portion having a high mixing promoting effect is provided, and the earth and sand are scraped up by a stirring blade along the concave portion, and a predetermined interval between the concave portion and the paddle is set. If it is made as narrow as possible to prevent biting, there is a risk that the biting phenomenon will frequently occur due to the soil having various particle sizes, and the rotational resistance of the stirring blade also becomes a mixing operation state close to biting. There are various problems such as an increase in size and the need for a larger drive source, and the possibility of deformation of the stirring blade.

本発明は上記従来の課題に鑑みて創案されたものであって、噛み込みの発生を減少させることが可能であるとともに、撹拌翼の回転抵抗の減少や撹拌翼の変形防止を図り得る現地採取土砂混合装置を提供することを目的とする。   The present invention was devised in view of the above-described conventional problems, and it is possible to reduce the occurrence of biting, and it is possible to reduce the rotation resistance of the stirring blade and prevent the deformation of the stirring blade. An object is to provide an earth and sand mixing device.

本発明にかかる現地採取土砂混合装置は、上端から下端にわたって傾斜させて配置され、該上端に現地採取土砂およびセメント、水からなる混合材料が投入される投入部が形成されるとともに該下端に排出部が形成されて、該投入部から該排出部に向かって混合材料が混合されながら流下搬送される搬送通路と、該搬送通路内に流下搬送方向に沿って複数設けられ、回転駆動されて混合材料を流下搬送方向と反対方向へ掻き上げて混合する撹拌翼と、上記搬送通路の底面上に上記撹拌翼の回転軌跡に沿って形成され、混合材料を該撹拌翼へ向かって案内する湾曲面とを備え、上記撹拌翼は、回転駆動される回転軸の軸方向に沿って適宜間隔を隔てて、かつ該回転軸より径方向外方へ放射状に配設された複数のブレードを有し、これらブレードの先端部と上記湾曲面との間の隙間が、投入される現地採取土砂の最大粒径寸法の１／２以上に設定されることを特徴とする。   The field sampling soil mixing apparatus according to the present invention is disposed so as to be inclined from the upper end to the lower end, and an input portion is formed at the upper end where a mixed material consisting of the field sampling soil, cement, and water is input and discharged at the lower end. And a plurality of conveying passages that are conveyed while being mixed from the charging portion toward the discharging portion, and a plurality of conveying passages are provided in the conveying passage along the conveying direction, and are rotated and mixed. A stirring blade that scrapes and mixes the material in a direction opposite to the downstream conveyance direction, and a curved surface that is formed on the bottom surface of the conveyance passage along the rotation trajectory of the stirring blade and guides the mixed material toward the stirring blade. The agitating blade has a plurality of blades arranged radially at an appropriate interval along the axial direction of the rotary shaft that is rotationally driven and radially outward from the rotary shaft, These blades The gap between the tip and the curved surface, characterized in that it is set to 1/2 or more of the maximum particle diameter of the local sampling sediment to be introduced.

また、前記搬送通路の側面とこれに近接して対峙する前記ブレードとの間の間隙が、投入される現地採取土砂の最大粒径寸法よりも大きく設定されることを特徴とする。   In addition, a gap between the side surface of the transport passage and the blades facing each other in the vicinity thereof is set to be larger than the maximum particle size size of the field-collected soil to be introduced.

また、前記ブレードは、基端部から先端部にわたって、拡幅部分を有しない板状に形成され、前記回転軸の長さ方向に隣接して配設された他のブレードとの隙間寸法が、投入される現地採取土砂の最大粒径寸法よりも大きく設定されることを特徴とする。   Further, the blade is formed in a plate shape having no widened portion from the base end portion to the tip end portion, and a clearance dimension with other blades arranged adjacent to the length direction of the rotating shaft is It is characterized by being set larger than the maximum grain size of the locally collected soil.

また、流下方向に隣接する前記撹拌翼同士は、両者の前記ブレードが互いに異なる回転位相で回転するように位相をずらして設けられることを特徴とする。   Further, the stirring blades adjacent in the flow-down direction are provided so as to be shifted in phase so that both the blades rotate at different rotational phases.

さらに、前記回転軸の長さ方向に隣接する前記ブレード同士は、該回転軸の回転方向に異なる位相で配設されることを特徴とする。   Furthermore, the blades adjacent to each other in the length direction of the rotating shaft are arranged in different phases in the rotating direction of the rotating shaft.

また、前記ブレードは、前記回転軸の回転方向前縁から後縁に向かって順次拡幅される形態に形成されることを特徴とする。   Further, the blade is characterized in that the blade is formed so as to be gradually widened from the front edge in the rotation direction to the rear edge.

本発明にかかる現地採取土砂混合装置にあっては、噛み込みの発生を減少させることができるとともに、撹拌翼の回転抵抗の減少や撹拌翼の変形防止を図ることができる。   In the field sampling soil mixing apparatus according to the present invention, it is possible to reduce the occurrence of biting, reduce the rotational resistance of the stirring blade, and prevent deformation of the stirring blade.

以下に、本発明にかかる現地採取土砂混合装置の好適な一実施形態を、添付図面を参照して詳細に説明する。本実施形態にかかる現地採取土砂混合装置は基本的には、図１〜図４に示すように、上端から下端にわたって傾斜させて配置され、上端に現地採取土砂およびセメント、水からなる混合材料が投入される投入部１ａが形成されるとともに下端に排出部１ｂが形成されて、投入部１ａから排出部１ｂに向かって混合材料が混合されながら流下搬送される搬送通路１と、搬送通路１内に流下搬送方向に沿って複数設けられ、回転駆動されて混合材料を流下搬送方向と反対方向へ掻き上げて混合する撹拌翼２と、搬送通路１の底面１ｃ上に撹拌翼２の回転軌跡に沿って形成され、混合材料を撹拌翼２へ向かって案内する湾曲面３ａとを備え、撹拌翼２は、回転駆動される回転軸４の軸方向に沿って適宜間隔を隔てて、かつ回転軸４より径方向外方へ放射状に配設された複数のブレード５を有し、これらブレード５の先端部５ａと湾曲面３ａとの間の隙間αが、投入される現地採取土砂の最大粒径寸法の１／２以上に設定される。   Hereinafter, a preferred embodiment of an on-site collected soil mixing apparatus according to the present invention will be described in detail with reference to the accompanying drawings. As shown in FIGS. 1 to 4, the field-collected earth and sand mixing device according to the present embodiment is basically arranged to be inclined from the upper end to the lower end, and a mixed material composed of the field-collected earth and sand, cement, and water is disposed at the upper end. A feeding portion 1a is formed and a discharging portion 1b is formed at the lower end, and the inside of the conveying passage 1 is transported down and conveyed while mixing the mixed material from the feeding portion 1a toward the discharging portion 1b. A stirring blade 2 that is provided in a plurality along the downstream conveyance direction and is driven to rotate to scrape and mix the mixed material in a direction opposite to the downstream conveyance direction, and the rotation locus of the stirring blade 2 on the bottom surface 1c of the conveyance passage 1 And the curved surface 3a that guides the mixed material toward the stirring blade 2, and the stirring blade 2 is appropriately spaced along the axial direction of the rotating shaft 4 that is rotationally driven, and the rotating shaft. 4 radially outward It has a plurality of blades 5 arranged in a radiating manner, and the gap α between the tip 5a of these blades 5 and the curved surface 3a is at least 1/2 of the maximum particle size of the locally collected soil Set to

また、搬送通路１の側面１ｄとこれに近接して対峙するブレード５との間の間隙βが、投入される現地採取土砂の最大粒径寸法よりも大きく設定される。ブレード５は、基端部５ｂから先端部５ａにわたって、拡幅部分を有しない板状に形成され、回転軸４の長さ方向に隣接して配設された他のブレード５との隙間寸法δが、投入される現地採取土砂の最大粒径寸法よりも大きく設定される。流下方向に隣接する撹拌翼２同士は、両者のブレード５が互いに異なる回転位相で回転するように位相をずらして設けられる。回転軸４の長さ方向に隣接するブレード５同士は、回転軸４の回転方向に異なる位相で配設される。ブレード５は、回転軸の回転方向前縁５ｃから後縁５ｄに向かって順次拡幅される形態に形成される。   In addition, the gap β between the side surface 1d of the transport passage 1 and the blade 5 facing the side surface is set to be larger than the maximum particle size of the field-collected earth and sand to be introduced. The blade 5 is formed in a plate shape having no widened portion from the base end portion 5b to the tip end portion 5a, and has a gap dimension δ with other blades 5 arranged adjacent to each other in the length direction of the rotary shaft 4. It is set to be larger than the maximum particle size of the locally collected earth and sand to be introduced. The agitating blades 2 adjacent to each other in the flow-down direction are provided with a phase shift so that both blades 5 rotate at different rotational phases. The blades 5 adjacent to each other in the length direction of the rotating shaft 4 are arranged in different phases in the rotating direction of the rotating shaft 4. The blade 5 is formed in a form that is gradually widened from the front edge 5c in the rotational direction of the rotating shaft toward the rear edge 5d.

搬送通路１は、中空角筒状の搬送部ユニット６，７を複数連結するとともに、上端となる一端に投入部１ａとなる投入部ユニット８を、下端となる他端に排出部１ｂとなる排出部ユニット９をそれぞれ連結することで構成される。搬送通路１は、下端の排出部ユニット９が基礎１０上に、また上端の投入部ユニット８が基礎１０上に設置された支持部材１１で支持されて、上端から下端にわたって傾斜させて配置される。これにより、混合材料の自重を利用して流下させることができ、高い搬送効率を確保することができる。   The conveyance path 1 connects a plurality of hollow rectangular tube-shaped conveyance unit units 6, 7, and discharges a loading unit 8 serving as a loading unit 1 a at one end serving as an upper end and a discharging unit 1 b serving as a lower end serving as a lower end. The unit units 9 are connected to each other. The transport passage 1 is disposed with an inclination from the upper end to the lower end, with the discharge unit 9 at the lower end supported on the base 10 and the support member 11 installed at the upper input unit 8 on the base 10. . Thereby, it can be made to flow down using the dead weight of mixed material, and high conveyance efficiency can be ensured.

投入部ユニット８および排出部ユニット９にはそれぞれ取付ブラケット１２が設けられ、投入部ユニット８の取付ブラケット１２と支持部材１１との間、並びに排出部ユニット９の取付ブラケット１２と基礎１０との間にはそれぞれ、搬送通路１を弾性支持して搬送通路１内部での混合作用を促進すべく当該搬送通路１の揺動を許容するためのコイルスプリングなどの弾性体１３が設けられる。また、支持部材１１は、基礎１０上に設置される脚部１４と、弾性体１３を支持する支持ブラケット１５と、これら支持ブラケット１５および脚部１４に対し回転自在なロータリジョイント１６を介して連結されたネジジャッキ１７とから構成され、ハンドル１８を回転操作してネジジャッキ１７を伸縮させることにより、搬送通路１の傾斜角度を、例えば４０°〜６５°程度の範囲で調節できるようになっている。   The input unit 8 and the discharge unit 9 are each provided with a mounting bracket 12 between the mounting bracket 12 and the support member 11 of the input unit 8 and between the mounting bracket 12 and the base 10 of the discharge unit 9. Each is provided with an elastic body 13 such as a coil spring for elastically supporting the transport passage 1 and allowing the transport passage 1 to swing in order to promote the mixing action inside the transport passage 1. The support member 11 is connected via a leg 14 installed on the foundation 10, a support bracket 15 that supports the elastic body 13, and a rotary joint 16 that is rotatable with respect to the support bracket 15 and the leg 14. The screw jack 17 is configured so that the inclination angle of the transport passage 1 can be adjusted within a range of, for example, about 40 ° to 65 ° by rotating the handle 18 to expand and contract the screw jack 17. Yes.

投入部ユニット８は、搬送部ユニット６，７に連通される中空状に形成されるとともに、搬送部ユニット６，７に対し若干立ち上げられて形成され、中空内部には、ホッパを形成するための傾斜板１９が支持板２０を介して取り付けられ、これにより現地採取土砂およびセメント、水からなる混合材料が投入される搬送通路１の投入部１ａを構成する。セメントに代えて、もしくはセメントに加えて、その他の硬化剤もしくは固化剤を用いるようにしても良い。排出部ユニット９は、上方が開放された樋状に形成され、これにより搬送通路１を経過して混合材料から生成された現地複合材料を排出する搬送通路１の排出部１ｂを構成する。そして混合材料は、重力の作用によって投入部ユニット８から排出部ユニット９へと流下搬送されつつ、複数の搬送部ユニット６，７において混合されるようになっている。   The input unit 8 is formed in a hollow shape communicating with the transport unit 6, 7 and is slightly raised with respect to the transport unit 6, 7 to form a hopper in the hollow interior. The inclined plate 19 is attached via a support plate 20, thereby constituting an input portion 1 a of the transport passage 1 into which a mixed material made of locally collected earth and sand, cement, and water is input. Other hardeners or solidifying agents may be used instead of or in addition to cement. The discharge unit 9 is formed in a bowl shape having an open top, and thereby constitutes a discharge unit 1b of the transfer passage 1 that discharges the on-site composite material generated from the mixed material after passing through the transfer passage 1. The mixed material is mixed in the plurality of transport unit 6 and 7 while being transported down from the input unit 8 to the discharge unit 9 by the action of gravity.

撹拌翼２は、搬送通路１を流下搬送される混合材料を掻き上げて混合するために、搬送通路１内に混合材料の流下搬送方向に沿って多段に複数設けられる。図示例にあっては搬送通路１は、撹拌翼２を備える３つの搬送部ユニット（以下、撹拌用搬送部ユニットという）６の間に、撹拌翼２を備えない２つの搬送部ユニット（以下、混合用搬送部ユニットという）７を挟み込んで、全体として５つの搬送部ユニット６，７から構成され、撹拌翼２は上段、中段、下段の配置で、搬送通路１に３つ設けられている。撹拌翼２は、角軸状の回転軸４とこの回転軸４の周りに径方向外方へ放射状に突出された複数のブレード５とから構成される。撹拌用搬送部ユニット６、すなわち搬送通路１の一方の側面１ｄには、撹拌翼２を内部に挿入する挿入口２１を塞ぐ塞ぎ板２２が着脱自在に設けられ、この塞ぎ板２２に一方の軸受部材２３が取り付けられるとともに、他方の側面１ｄに他方の軸受部材２４が取り付けられ、撹拌翼２の回転軸４はその両端がこれら一対の軸受部材２３，２４によって搬送通路１の側面１ｄに回転自在に支持される。   A plurality of agitating blades 2 are provided in multiple stages along the direction in which the mixed material flows down in the conveyance path 1 in order to scrape and mix the mixed material conveyed down in the conveyance path 1. In the illustrated example, the conveyance path 1 includes two conveyance unit units (hereinafter, referred to as “stirring conveyance unit units”) 6 that are not provided with the agitation blades 2 between the three conveyance unit units (hereinafter, referred to as agitation conveyance unit). The mixing blade unit 7 is sandwiched between the five conveying unit units 6 and 7, and three stirring blades 2 are provided in the conveying passage 1 in an upper stage, a middle stage, and a lower stage. The agitating blade 2 is composed of a rotary shaft 4 having an angular axis and a plurality of blades 5 projecting radially outward in the radial direction around the rotary shaft 4. On one side surface 1d of the agitation transport unit 6, that is, the transport passage 1, a closing plate 22 is provided detachably to close the insertion port 21 into which the stirring blade 2 is inserted. While the member 23 is attached, the other bearing member 24 is attached to the other side surface 1d, and both ends of the rotating shaft 4 of the stirring blade 2 are freely rotatable to the side surface 1d of the conveyance path 1 by the pair of bearing members 23 and 24. Supported by

撹拌用搬送部ユニット６の側壁から外方へ突出された回転軸４の一端には、撹拌翼２をチェーン駆動用するスプロケット２５が設けられる。３つの撹拌翼２を図示しない単一の駆動モータで回転駆動するために、スプロケット２５は、上段の撹拌翼２に１つ、中段および下段の撹拌翼２にそれぞれ２つずつ設けられ、また図示しないけれども、チェーンは、駆動モータと下段の一方のスプロケット２５との間、下段の他方のスプロケット２５と中段の一方のスプロケット２５との間、並びに中段の他方のスプロケット２５と上段のスプロケット２５との間にそれぞれ巻き掛けられる。そして図示に従えば、撹拌翼２は、スプロケット２５およびチェーンを介して、駆動モータにより時計回りに回転駆動されて混合材料を流下搬送方向と反対方向へ掻き上げて混合するようになっている。これにより、混合材料の自重を利用して、効率の良い撹拌作用を確保することができる。   A sprocket 25 for driving the stirring blade 2 to a chain is provided at one end of the rotating shaft 4 protruding outward from the side wall of the stirring transport unit 6. In order to rotationally drive the three stirring blades 2 with a single drive motor (not shown), one sprocket 25 is provided for each of the upper stirring blades 2 and two for each of the middle and lower stirring blades 2. However, the chain is between the drive motor and one lower sprocket 25, between the other lower sprocket 25 and one middle sprocket 25, and between the other middle sprocket 25 and the upper sprocket 25. Each is wrapped in between. Then, according to the figure, the stirring blade 2 is driven to rotate clockwise by a drive motor via the sprocket 25 and the chain, and the mixed material is scraped up and mixed in the direction opposite to the flow-down conveyance direction. Thereby, an efficient stirring action can be secured by utilizing the weight of the mixed material.

各撹拌翼２における回転軸４へのブレード５の取付態様について、図示に従って詳述すると、ブレード５は、回転軸４周りに１８０°間隔で取り付けられた２枚一組を１列として、回転軸４の軸方向に沿って互いに等間隔で５列設けられ、これらブレード５とブレード５相互間の隙間とにより、撹拌翼２へと流れ込んでくる混合材料をその隙まで下方へ送り出しつつ、その一部はブレード５で掻き上げることで混合材料の撹拌混合を行うようになっている。回転軸４の長さ方向に隣接するブレード５同士は、これらブレード５間の隙間をすり抜けようとする混合材料の混合効率を高めるべく、先に到来するブレード５と、後から到来するブレード５とを設定して、先に到来したブレード５をすり抜けた混合材料を後から到来するブレード５で掻き分けるために、回転軸４の回転方向に異なる位相、すなわち９０°位相をずらして回転軸４に取り付けられている。このような構成から、撹拌翼２を回転軸４の軸方向に見た場合、ブレード５は十字状に配列されている。ブレード５はその厚さについて、混合材料の高い粉砕効率と高い掻き上げ効率を確保するために、回転軸４の回転方向前縁５ｃから後縁５ｄに向かって順次拡幅される形態で形成される。図示例にあっては、前縁５ｃが比較的薄い厚さであって、後縁５ｄに近づくにつれて順次厚みが増加され、ブレード５の幅方向ほぼ中央あたりから後縁５ｄまでは一定の厚さで形成されている。   The manner in which the blade 5 is attached to the rotating shaft 4 in each stirring blade 2 will be described in detail with reference to the drawings. The blade 5 is a rotating shaft that includes a pair of two blades attached around the rotating shaft 4 at intervals of 180 °. 5 are provided at equal intervals along the axial direction of 4, and the mixed material flowing into the stirring blade 2 is sent down to the gap by the blade 5 and the gap between the blades 5. The part is agitated and mixed with the blade 5 by stirring the mixed material. The blades 5 adjacent to each other in the longitudinal direction of the rotating shaft 4 are arranged so that the blade 5 that comes first and the blade 5 that comes later are arranged to increase the mixing efficiency of the mixed material that tries to pass through the gap between the blades 5. In order to scrape the mixed material that has passed through the blade 5 that has arrived earlier with the blade 5 that has arrived later, a different phase in the rotational direction of the rotating shaft 4, that is, a 90 ° phase is shifted to the rotating shaft 4. It is attached. With this configuration, when the stirring blade 2 is viewed in the axial direction of the rotary shaft 4, the blades 5 are arranged in a cross shape. The blade 5 is formed in such a form that the thickness thereof is sequentially widened from the front edge 5c in the rotational direction of the rotating shaft 4 toward the rear edge 5d in order to ensure high grinding efficiency and high scraping efficiency of the mixed material. . In the illustrated example, the leading edge 5c has a relatively thin thickness, and the thickness is gradually increased toward the trailing edge 5d, and a constant thickness is obtained from approximately the center in the width direction of the blade 5 to the trailing edge 5d. It is formed with.

また、ブレード５相互間での混合材料の噛み込みを考慮し、ブレード５間に送り込まれる混合材料の流れを円滑化してブレード５に変形が生じることを防止するために、ブレード５そのものは、先端部５ａに尖端部分５ｅが形成されるほか、回転軸４に固定される基端部５ｂから外方へ延出された先端部５ａにわたって拡幅部分を有しない、長さ方向に一定幅Ｈの板状に形成され、かつ互いに９０°位相がずらされた隣接するブレード５同士の隙間寸法δが、投入される現地採取土砂の最大粒径寸法よりも大きく設定される。また、ブレード５と撹拌用搬送部ユニット６の側面、すなわち搬送通路１の側面１ｄとの間での混合材料の噛み込みを考慮し、これら間に送り込まれる混合材料の流れを円滑化するために、搬送通路１の両側面１ｄ、すなわち軸受部材２３，２４が取り付けられた撹拌用搬送部ユニット６の両側面とこれに近接して対峙する１列目および５列目のブレード５との間の間隙βの寸法も、投入される現地採取土砂の最大粒径寸法よりも大きく設定される。   Further, considering the biting of the mixed material between the blades 5, in order to smooth the flow of the mixed material fed between the blades 5 and prevent the blade 5 from being deformed, the blade 5 itself is A plate having a constant width H in the length direction, which has a pointed portion 5e formed on the portion 5a and does not have a widened portion extending from the base end portion 5b fixed to the rotating shaft 4 to the distal end portion 5a. The gap size δ between adjacent blades 5 that are formed in a shape and are 90 ° out of phase with each other is set to be larger than the maximum particle size size of the field-collected soil to be introduced. Further, in consideration of the biting of the mixed material between the blade 5 and the side surface of the stirring conveyance unit 6, that is, the side surface 1 d of the conveyance path 1, in order to smooth the flow of the mixed material fed between them , Between both side surfaces 1d of the conveyance path 1, that is, both side surfaces of the agitating conveyance unit 6 to which the bearing members 23 and 24 are attached, and the first and fifth rows of blades 5 facing each other. The size of the gap β is also set to be larger than the maximum particle size of the locally collected earth and sand to be input.

さらに、混合材料の流下搬送方向に隣接する撹拌翼２同士の関係、すなわち上段と中段、そしてまた中段と下段では、前段の撹拌翼２のブレード５をすり抜けた混合材料を後段の撹拌翼２のブレード５で撹拌混合するようにして混合効率を高めるために、両者のブレード５が互いに異なる回転位相で回転する、例えば上段、中段および下段の各撹拌翼２の１列目のブレード５同士の関係で説明すれば、上段のものが搬送通路１に沿った位置となった瞬間に、中段のものが搬送通路１に対し４５°の傾斜をなし、また下段のものが搬送通路１に対し９０°をなすように、互いに４５°だけ異なる位相で回転するように設けられる。このような位相の設定は、撹拌翼２を軸受部材２３，２４に取り付ける際に設定することができる。   Further, in the relationship between the stirring blades 2 adjacent to each other in the conveying direction of the mixed material, that is, in the upper stage and the middle stage, and also in the middle stage and the lower stage, the mixed material that has passed through the blade 5 of the preceding stirring blade 2 is passed through In order to increase the mixing efficiency by stirring with the blades 5, both blades 5 rotate at different rotational phases. For example, the relationship between the blades 5 in the first row of the upper, middle and lower stirring blades 2. As described above, at the moment when the upper one is positioned along the conveying path 1, the middle one is inclined 45 ° with respect to the conveying path 1, and the lower one is 90 ° with respect to the conveying path 1. So as to rotate at a phase different from each other by 45 °. Such a phase can be set when the stirring blade 2 is attached to the bearing members 23 and 24.

さらに、撹拌用搬送部ユニット６の天井面１ｅには、支持ブラケット２６で支持させて、撹拌翼２で掻き上げられて回転方向へ投げ出される土砂が衝突され、この衝突した土砂を撹拌翼２の下流側へと落下させて送り込む衝突案内プレート２７が設けられる。またこの衝突案内プレート２７に隣接させて天井面１ｅには、撹拌翼２のメンテナンスのために、取っ手付き点検蓋２８で開閉される点検口２９が形成されている。   Further, the earth and sand which is supported by the support bracket 26 and is picked up by the agitating blade 2 and thrown out in the rotation direction is collided with the ceiling surface 1e of the agitating transport unit 6. A collision guide plate 27 is provided which is dropped and sent to the downstream side. An inspection port 29 that is opened and closed by an inspection lid 28 with a handle for maintenance of the stirring blade 2 is formed on the ceiling surface 1e adjacent to the collision guide plate 27.

搬送通路１の底面１ｃには、搬送通路１に沿って流下搬送される混合材料の流速など、その流れを調整しつつ、混合材料を撹拌翼２へ案内したり、衝突案内プレート２７から落下される混合材料との混合を促進したりする材料案内部材３０が設けられる。この材料案内部材３０はそれぞれボックス形態で形成されて、投入部ユニット８、排出部ユニット９および搬送部ユニット６，７それぞれの内部に個別に取り付けられ、これらユニット６〜９を連結することで一連の材料案内面３を形成するようになっている。   The mixed material is guided to the stirring blade 2 or dropped from the collision guide plate 27 on the bottom surface 1c of the conveyance path 1 while adjusting the flow rate of the mixed material conveyed down along the conveyance path 1. A material guide member 30 that facilitates mixing with the mixed material is provided. Each of the material guide members 30 is formed in a box shape, and is individually attached to the inside of the input unit 8, the discharge unit 9, and the transport unit 6, 7. The material guide surface 3 is formed.

この材料案内面３は、投入部ユニット８内および排出部ユニット９内では、混合材料を搬送通路１内へ緩やかな速度で送り込み、また搬送通路１内から速やかに送り出すように傾斜面３ｂで構成されるとともに、撹拌用搬送部ユニット６内では、搬送通路１の傾斜を利用して撹拌翼２への流入を促進すべく流入速度を速めつつ混合材料を撹拌翼２へ向かって案内し、かつその内部では一時的に混合材料を滞留させて撹拌翼２との接触時間を長く維持し、また撹拌翼２からその下流側へと流出される混合材料の流出速度は緩やかにするように、撹拌翼２の回転軌跡に沿う凹状の湾曲面３ａで構成され、また混合用搬送部ユニット７内では、衝突案内プレート２７から落下され送り込まれる混合材料との再混合を促進すべく、混合材料を一定の速度で流下搬送する平坦面３ｃで構成される。   The material guide surface 3 is configured by an inclined surface 3 b so that the mixed material is fed into the transport passage 1 at a moderate speed and quickly fed out from the transport passage 1 in the input unit 8 and the discharge unit 9. In addition, in the agitation transport unit 6, the mixed material is guided toward the agitation blade 2 while increasing the inflow speed so as to promote the inflow to the agitation blade 2 using the inclination of the transport passage 1, and In the interior, the mixed material is temporarily retained so that the contact time with the stirring blade 2 is maintained long, and the flow rate of the mixed material flowing out from the stirring blade 2 to the downstream side is moderated. Consisting of a concave curved surface 3a along the rotation trajectory of the blade 2, and in the mixing transport unit 7, the mixed material is kept constant in order to promote remixing with the mixed material dropped and sent from the collision guide plate 27. Speed of In composed of flat surfaces 3c flowing down conveyor.

そして特に本実施形態にあっては、この材料案内面３の湾曲面３ａとブレード５の先端部３ａ、すなわち尖端部分３ｅとの間の隙間αが、これら間で生じ得る混合材料の噛み込み現象の発生を減少させるために、投入される現地採取土砂の最大粒径寸法の１／２以上に設定される。   Particularly in the present embodiment, the gap α between the curved surface 3a of the material guide surface 3 and the tip 3a of the blade 5, that is, the tip portion 3e, may cause a mixed material biting phenomenon between them. In order to reduce the occurrence of slag, it is set to 1/2 or more of the maximum particle size of the locally collected earth and sand to be introduced.

以上の説明において、現地採取土砂の最大粒径寸法は、例えば８０ｍｍ程度と想定されるもので、必要であれば、投入前に現地採取土砂を大雑把に粒度調整すればよい。   In the above description, the maximum particle size of the locally collected earth and sand is assumed to be, for example, about 80 mm. If necessary, the particle size of the locally collected earth and sand may be roughly adjusted before the introduction.

次に、本実施形態にかかる現地採取土砂混合装置の作用を、図４を用いて説明する。図４にあっては、搬送通路１としてその天井部１ｅ、すなわち投入部ユニット８および搬送部ユニット６，７の天井部を省略した樋状のものが例示されている。現地複合材料を生成するに際しては、投入部ユニット８からバッチ式もしくは連続的に、混合材料である現地採取土砂、セメントおよび水を投入する。投入された混合材料は重力の作用を受けて、投入部ユニット８から材料案内面３の傾斜面３ｂを介して、撹拌用搬送部ユニット６内の湾曲面３ａへと流下搬送されていく。   Next, the operation of the locally collected soil mixing apparatus according to the present embodiment will be described with reference to FIG. In FIG. 4, the ceiling part 1e, ie, the bowl-like thing which abbreviate | omitted the ceiling part of the insertion part unit 8 and the conveyance part units 6 and 7, is illustrated as the conveyance path 1. FIG. When producing the local composite material, the local collection soil, cement, and water, which are mixed materials, are input from the input unit 8 batchwise or continuously. The charged mixed material is subjected to the action of gravity, and is conveyed downward from the charging unit 8 to the curved surface 3 a in the agitation transport unit 6 through the inclined surface 3 b of the material guide surface 3.

混合材料の撹拌混合状態を、上段の撹拌翼２を例にとって説明すると、撹拌翼２は混合材料の流下搬送方向とは反対方向に回転駆動されることから、湾曲面３ａに流れ込んでくる混合材料に対してブレード５がその中へと潜り込んでいき、この潜り込みにより混合材料は掻き分けられて撹拌されつつ、その一部はブレード５によって掻き上げられ、また残りは１列目と３列目、３列目と５列目、そしてまた２列目と４列目のブレード５同士の隙間δ、さらには両側面１ｄと１列目および５列目のブレード５の間隙βから当該撹拌翼２の下流側へと流下搬送されていく。この掻き上げを伴う撹拌作用により、混合材料は好適に混合されることになる。通常、混合材料は相当の粘凋性を有して塊状で流下搬送されることから、このようなブレード５の潜り込みによるブレード５相互間の隙間δ、ブレード５と搬送通路１の側面１ｄとの間隙βで発生する撹拌作用によって効果的に混合材料を混合することができる。   The stirring and mixing state of the mixed material will be described by taking the upper stirring blade 2 as an example. The stirring blade 2 is driven to rotate in a direction opposite to the flow-down conveyance direction of the mixed material, and thus the mixed material flowing into the curved surface 3a. In contrast, the blade 5 sinks into it, and the mixed material is scraped and stirred by the sinking, and a part of the mixed material is scraped up by the blade 5, and the rest are in the first, third, and third rows. A gap δ between the blades 5 in the second and fourth rows, and also in the second and fourth rows, and further downstream of the agitating blade 2 from the gap β between the side surfaces 1d and the first and fifth blades 5. It is conveyed down to the side. The mixed material is suitably mixed by the stirring action accompanied by the scraping. Usually, since the mixed material has a considerable viscosity and is conveyed down in a lump, the gap δ between the blades 5 due to the submergence of the blade 5, the blade 5 and the side surface 1 d of the conveying path 1. The mixed material can be effectively mixed by the stirring action generated in the gap β.

そして上段の撹拌翼２を経過した混合材料は湾曲面３ａから平坦面３ｃ上へと流下され、またブレード５で掻き上げられた混合材料は回転作用で投げ出されて衝突案内プレート２７に衝突された後、上段の撹拌翼２よりも下流の平坦面３ｃへ向かって落下され、この落下作用により当該平坦面３ｃ上を流下する混合材料との再度の混合作用も促進される。このような撹拌混合作用が、中段および下段でも同様に繰り返されることとなり、このような混合材料の流下搬送過程で生成された現地複合材料を最終的に排出部ユニット９から排出することができる。   The mixed material that has passed through the upper stirring blade 2 flows down from the curved surface 3a onto the flat surface 3c, and the mixed material scraped up by the blade 5 is thrown out by a rotating action and collided with the collision guide plate 27. After that, it is dropped toward the flat surface 3c downstream from the upper stirring blade 2, and the remixing action with the mixed material flowing down on the flat surface 3c is also promoted by this dropping action. Such a stirring and mixing action is repeated in the middle and lower stages in the same manner, and the on-site composite material generated in the process of conveying the mixed material down can be finally discharged from the discharge unit 9.

以上説明した本実施形態にかかる現地採取土砂混合装置にあっては、ブレード５の先端部５ａ、すなわち尖端部分５ｅと湾曲面３ａとの間の隙間αを、投入される現地採取土砂の最大粒径寸法の１／２以上に設定していて、これは、撹拌翼２による混合材料の掻き上げ・撹拌状態を考慮すると、撹拌翼２のブレード５には、現地採取土砂にセメントおよび水が添加され混ぜ合わされて粘凋性を呈している混合材料が撹拌混合操作に伴って相当の厚さで付着することとなっていて、このブレード５に付着した混合材料が新たに流れ込む混合材料を掻き分ける際のクッションとして作用することとなっており、現地採取土砂の最大粒径寸法を基準として、その１／２程度もしくはそれ以上の隙間αを設定すれば、当該隙間寸法以下の粒径寸法のものはもちろんのこと、当該隙間寸法を超える粒径寸法の現地採取土砂がブレード５と湾曲面３ａとの間に進入しようとした場合に、設定した隙間αの寸法と当該クッション作用とが相俟って現地採取土砂もしくは混合材料を、回転するブレード５の脇などへスムーズに送り込むことができて、これにより湾曲面３ａとブレード５との間で生じる混合材料の噛み込みの発生を適切に減少させることができるとともに、また噛み込みに近い混合操作状態になることを抑制して撹拌翼２の回転抵抗を減少させることができ、さらには撹拌翼２に無理な力が作用してこれに変形が生じることも防止することができる。   In the field collection soil mixing apparatus according to the present embodiment described above, the gap 5 between the tip portion 5a of the blade 5, that is, the tip portion 5e and the curved surface 3a is set to the maximum grain size of the field collection soil to be introduced. It is set to 1/2 or more of the diameter, and considering the scraping and stirring state of the mixed material by the stirring blade 2, cement and water are added to the locally collected earth and sand to the blade 5 of the stirring blade 2 The mixed material which is mixed and exhibits stickiness adheres with a considerable thickness in accordance with the stirring and mixing operation, and the mixed material adhering to the blade 5 is scraped away from the newly mixed material. If the gap α is set to about ½ or more of the maximum particle size of the locally collected soil, the particle size is less than the gap size. Needless to say, when the locally collected earth and sand having a particle size exceeding the gap size is about to enter between the blade 5 and the curved surface 3a, the set size of the gap α and the cushion action are combined. Thus, the locally collected earth or mixed material can be smoothly fed to the side of the rotating blade 5 or the like, thereby appropriately reducing the occurrence of biting of the mixed material between the curved surface 3a and the blade 5. In addition, it is possible to reduce the rotational resistance of the stirring blade 2 by suppressing the mixing operation state close to biting, and furthermore, an excessive force acts on the stirring blade 2 to cause deformation. It can also be prevented.

また、搬送通路１の側面１ｄとこれに近接して対峙するブレード５との間の間隙βを、投入される現地採取土砂の最大粒径寸法よりも大きく設定したので、上述したクッション作用と相俟って、これらブレード５と搬送通路１の側面１ｄとの間での混合材料の噛み込みも防止することができる。   In addition, since the gap β between the side surface 1d of the transport passage 1 and the blade 5 facing the side 1d is set larger than the maximum particle size of the locally collected earth and sand to be introduced, As a result, the mixed material can be prevented from biting between the blade 5 and the side surface 1d of the transport passage 1.

また、ブレード５を、基端部５ｂから先端部５ａにわたって、拡幅部分を有しない板状に形成し、回転軸４の長さ方向に隣接して配設された他のブレード５との隙間δの寸法を、投入される現地採取土砂の最大粒径寸法よりも大きく設定したので、上記クッション作用との相互作用で現地採取土砂もしくは混合材料を円滑にブレード５の脇へと送り込むことができ、ブレード５に無理な力が作用してこれに変形が生じることを防止することができる。   Further, the blade 5 is formed in a plate shape having no widened portion from the base end portion 5b to the tip end portion 5a, and a gap δ between the blade 5 and another blade 5 disposed adjacent to the length direction of the rotary shaft 4 is formed. Is set to be larger than the maximum particle size of the locally collected soil to be introduced, so that the locally collected soil or mixed material can be smoothly fed to the side of the blade 5 by the interaction with the cushioning action. It can be prevented that an excessive force acts on the blade 5 to cause deformation.

また、流下方向に隣接する撹拌翼２同士を、両者のブレード５が互いに異なる回転位相で回転するように位相をずらして設けるようにしたので、前段の撹拌翼２のブレード５をすり抜けて流下してきた混合材料は、後段の撹拌翼２に達した際に、後段の撹拌翼２のブレード５によって撹拌混合されることとなり、混合効率を向上することができる。   Further, the stirrer blades 2 adjacent to each other in the flow-down direction are provided so as to be shifted in phase so that the two blades 5 rotate at different rotational phases. When the mixed material reaches the subsequent agitating blade 2, it is agitated and mixed by the blade 5 of the latter agitating blade 2, so that the mixing efficiency can be improved.

また回転軸４の長さ方向に隣接するブレード５同士についても、回転軸４の回転方向に異なる位相で配設したので、混合材料が先に到来したブレード５をすり抜けても、後から到来する隣のブレード５によって確実に撹拌混合されることとなり、これによっても混合効率を向上することができる。   Further, since the blades 5 adjacent to each other in the length direction of the rotating shaft 4 are also arranged in different phases in the rotating direction of the rotating shaft 4, even if the mixed material passes through the blade 5 that has arrived first, it comes later. The adjacent blades 5 are surely stirred and mixed, and this can also improve the mixing efficiency.

さらに、ブレード５を、回転軸４の回転方向前縁５ｃから後縁５ｄに向かって順次拡幅される形態に形成したので、回転方向前縁５ｃによって混合材料を効率よく粉砕しつつ左右に掻き分けることができて円滑な撹拌作用を確保できる上に、後縁５ｄの方向への拡幅によってブレード５による混合材料の掻き上げ効率も向上することができる。   Further, since the blade 5 is formed so as to be gradually widened from the rotation direction front edge 5c toward the rear edge 5d of the rotation shaft 4, the mixed material is efficiently pulverized by the rotation direction front edge 5c and is divided into left and right. In addition to ensuring a smooth stirring action, the blade 5 can improve the scraping efficiency of the mixed material by widening in the direction of the trailing edge 5d.

本発明にかかる現地採取土砂混合装置の好適な一実施形態を示す側断面図である。It is a sectional side view which shows suitable one Embodiment of the local collection earth and sand mixing apparatus concerning this invention. 図１の現地採取土砂混合装置の搬送通路の部分拡大側断面図である。It is a partial expanded side sectional view of the conveyance path of the field collection earth and sand mixing apparatus of FIG. 図２のＡ−Ａ線矢視断面図である。FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. 図１の現地採取土砂混合装置の稼働状態を示す要部側断面図である。It is a principal part sectional side view which shows the operation state of the local collection earth and sand mixing apparatus of FIG.

符号の説明Explanation of symbols

１ 搬送通路 １ａ 搬送通路の投入部
１ｂ 搬送通路の排出部 １ｃ 搬送通路の底面
１ｄ 搬送通路の側面 ２ 撹拌翼
３ａ 湾曲面 ４ 回転軸
５ ブレード ５ａ ブレードの先端部
５ｂ ブレードの基端部 ５ｃ ブレードの回転方向前縁
５ｄ ブレードの回転方向後縁
α ブレードの先端部と湾曲面との間の隙間
β 搬送通路の側面とブレードとの間の間隙
δ 回転軸の長さ方向に隣接するブレード同士の隙間 DESCRIPTION OF SYMBOLS 1 Transfer path 1a Transfer path input part 1b Transfer path discharge part 1c Bottom surface of transfer path 1d Side surface of transfer path 2 Stirring blade 3a Curved surface 4 Rotating shaft 5 Blade 5a Blade tip 5b Blade base end 5c Rotation direction leading edge 5d Blade rotation direction trailing edge α Clearance between blade tip and curved surface β Clearance between side surface of conveyance path and blade δ Clearance between adjacent blades in length direction of rotation axis

Claims (6)

上端から下端にわたって傾斜させて配置され、該上端に現地採取土砂およびセメント、水からなる混合材料が投入される投入部が形成されるとともに該下端に排出部が形成されて、該投入部から該排出部に向かって混合材料が混合されながら流下搬送される搬送通路と、
該搬送通路内に流下搬送方向に沿って複数設けられ、回転駆動されて混合材料を流下搬送方向と反対方向へ掻き上げて混合する撹拌翼と、
上記搬送通路の底面上に上記撹拌翼の回転軌跡に沿って形成され、混合材料を該撹拌翼へ向かって案内する湾曲面とを備え、
上記撹拌翼は、回転駆動される回転軸の軸方向に沿って適宜間隔を隔てて、かつ該回転軸より径方向外方へ放射状に配設された複数のブレードを有し、
これらブレードの先端部と上記湾曲面との間の隙間が、投入される現地採取土砂の最大粒径寸法の１／２以上に設定されることを特徴とする現地採取土砂混合装置。 The upper end and the lower end are arranged to be inclined, and the upper end is formed with an input portion into which a mixed material composed of locally collected earth and sand, cement, and water is input, and the lower end is formed with a discharge portion. A transport passage that is transported down while the mixed material is mixed toward the discharge portion;
A plurality of stirring blades provided along the flow-down conveyance direction in the conveyance passage, and agitating blades that are driven to rotate and scrape and mix the mixed material in a direction opposite to the flow-down conveyance direction;
A curved surface that is formed along the rotation trajectory of the stirring blade on the bottom surface of the transport passage, and guides the mixed material toward the stirring blade;
The agitating blade has a plurality of blades arranged radially at an appropriate interval along the axial direction of the rotary shaft that is rotationally driven and radially outward from the rotary shaft,
A locally collected soil mixing apparatus, wherein a gap between the tip of each blade and the curved surface is set to ½ or more of a maximum particle size of the locally collected soil to be charged. 前記搬送通路の側面とこれに近接して対峙する前記ブレードとの間の間隙が、投入される現地採取土砂の最大粒径寸法よりも大きく設定されることを特徴とする請求項１に記載の現地採取土砂混合装置。   The gap between the side surface of the conveyance passage and the blade facing the blade is set to be larger than the maximum particle size of the field-collected earth and sand to be introduced. Locally collected soil mixing equipment. 前記ブレードは、基端部から先端部にわたって、拡幅部分を有しない板状に形成され、前記回転軸の長さ方向に隣接して配設された他のブレードとの隙間寸法が、投入される現地採取土砂の最大粒径寸法よりも大きく設定されることを特徴とする請求項１または２に記載の現地採取土砂混合装置。   The blade is formed in a plate shape having no widened portion from the base end portion to the tip end portion, and a gap dimension with another blade disposed adjacent to the length direction of the rotating shaft is input. The field sampling soil mixing apparatus according to claim 1 or 2, wherein the field sampling soil mixing apparatus is set larger than a maximum particle size of the field sampling earth and sand. 流下方向に隣接する前記撹拌翼同士は、両者の前記ブレードが互いに異なる回転位相で回転するように位相をずらして設けられることを特徴とする請求項１〜３いずれかの項に記載の現地採取土砂混合装置。   The on-site sampling according to any one of claims 1 to 3, wherein the stirring blades adjacent in the flow-down direction are provided with a phase shift so that both the blades rotate at different rotational phases. Sediment mixing equipment. 前記回転軸の長さ方向に隣接する前記ブレード同士は、該回転軸の回転方向に異なる位相で配設されることを特徴とする請求項１〜４いずれかの項に記載の現地採取土砂混合装置。   The field sampling soil mixing according to any one of claims 1 to 4, wherein the blades adjacent to each other in the length direction of the rotating shaft are arranged in different phases in the rotating direction of the rotating shaft. apparatus. 前記ブレードは、前記回転軸の回転方向前縁から後縁に向かって順次拡幅される形態に形成されることを特徴とする請求項１〜５いずれかの項に記載の現地採取土砂混合装置。   The field sampling soil mixing apparatus according to any one of claims 1 to 5, wherein the blade is formed in a form in which the blade is sequentially widened from a front edge to a rear edge in the rotation direction of the rotating shaft.
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007075689A (en) * 2005-09-12 2007-03-29 Togami Electric Mfg Co Ltd Agitating method, agitation apparatus and liquid-waste treatment apparatus
JP2010228221A (en) * 2009-03-26 2010-10-14 Okumura Corp Mixer of earth and sand gathered on-site
JP2010227800A (en) * 2009-03-26 2010-10-14 Okumura Corp Equipment and method for maintenance of apparatus for mixing earth and sand gathered on-site
JP2010228222A (en) * 2009-03-26 2010-10-14 Okumura Corp Mixer of earth and sand gathered on-site
JP2011025437A (en) * 2009-07-22 2011-02-10 Kyc Machine Industry Co Ltd Biaxial mixer
JP2013075529A (en) * 2012-12-25 2013-04-25 Okumura Corp On-the-spot sampled earth and sand mixing apparatus
CN112681481A (en) * 2020-11-26 2021-04-20 安徽聚云环保设备制造有限责任公司 Domestic sewage treatment device based on water quantity dynamic regulation
CN114523569A (en) * 2022-03-09 2022-05-24 江苏华云桩业有限公司 Agitating unit is used in cement pile manufacturing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000064343A (en) * 1998-08-24 2000-02-29 Kotoo:Kk Excavated material mixer
JP2005052989A (en) * 2003-08-05 2005-03-03 Okumura Corp On-the-spot composite material mixing apparatus
JP2005052988A (en) * 2003-08-05 2005-03-03 Okumura Corp On-the-spot composite material mixing apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000064343A (en) * 1998-08-24 2000-02-29 Kotoo:Kk Excavated material mixer
JP2005052989A (en) * 2003-08-05 2005-03-03 Okumura Corp On-the-spot composite material mixing apparatus
JP2005052988A (en) * 2003-08-05 2005-03-03 Okumura Corp On-the-spot composite material mixing apparatus

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007075689A (en) * 2005-09-12 2007-03-29 Togami Electric Mfg Co Ltd Agitating method, agitation apparatus and liquid-waste treatment apparatus
JP4611848B2 (en) * 2005-09-12 2011-01-12 株式会社戸上電機製作所 Waste liquid treatment equipment
JP2010228221A (en) * 2009-03-26 2010-10-14 Okumura Corp Mixer of earth and sand gathered on-site
JP2010227800A (en) * 2009-03-26 2010-10-14 Okumura Corp Equipment and method for maintenance of apparatus for mixing earth and sand gathered on-site
JP2010228222A (en) * 2009-03-26 2010-10-14 Okumura Corp Mixer of earth and sand gathered on-site
JP2011025437A (en) * 2009-07-22 2011-02-10 Kyc Machine Industry Co Ltd Biaxial mixer
JP2013075529A (en) * 2012-12-25 2013-04-25 Okumura Corp On-the-spot sampled earth and sand mixing apparatus
CN112681481A (en) * 2020-11-26 2021-04-20 安徽聚云环保设备制造有限责任公司 Domestic sewage treatment device based on water quantity dynamic regulation
CN112681481B (en) * 2020-11-26 2022-05-24 安徽聚云环保设备制造有限责任公司 Domestic sewage treatment device based on water quantity dynamic regulation
CN114523569A (en) * 2022-03-09 2022-05-24 江苏华云桩业有限公司 Agitating unit is used in cement pile manufacturing
CN114523569B (en) * 2022-03-09 2023-08-18 江苏华云桩业有限公司 Stirring device for cement pile manufacturing

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