JP2014015018A - Fine aggregate storage tank - Google Patents

Fine aggregate storage tank Download PDF

Info

Publication number
JP2014015018A
JP2014015018A JP2012155517A JP2012155517A JP2014015018A JP 2014015018 A JP2014015018 A JP 2014015018A JP 2012155517 A JP2012155517 A JP 2012155517A JP 2012155517 A JP2012155517 A JP 2012155517A JP 2014015018 A JP2014015018 A JP 2014015018A
Authority
JP
Japan
Prior art keywords
storage tank
fine aggregate
water absorption
strainer
absorption pipe
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.)
Granted
Application number
JP2012155517A
Other languages
Japanese (ja)
Other versions
JP5947645B2 (en
Inventor
Michito Orimo
道人 下茂
Kentaro Masuoka
健太郎 増岡
Hiroyuki Arai
博之 新井
Hidenori Maekawa
英範 前川
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.)
Taisei Corp
Original Assignee
Taisei Corp
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 Taisei Corp filed Critical Taisei Corp
Priority to JP2012155517A priority Critical patent/JP5947645B2/en
Publication of JP2014015018A publication Critical patent/JP2014015018A/en
Application granted granted Critical
Publication of JP5947645B2 publication Critical patent/JP5947645B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a fine aggregate storage tank 1 allowing surface water of a fine aggregate to be discharged in a short time.SOLUTION: A fine aggregate storage tank 1 is a container including a bottom plate 11, a side wall 12, and a ceiling part 13. The bottom plate 11 is a cone type plate including radial discharge grooves 11a and being the highest at a middle part thereof. An aggregate discharge port 11c communicates with a middle part of a cone type slope. A strainer 4 at the tip of a water suction tube 41 is disposed in the interior of the storage tank 1. The fine aggregate storage tank 1 is configured to apply a negative pressure to the water suction tube 41.

Description

本発明は、細骨材貯蔵槽に関するものである。   The present invention relates to a fine aggregate storage tank.

ダム施工技術のひとつであるRCD工法では、硬練りコンクリートを締め固めて堤体を構築する工法であるため、表面水率の低い細骨材を大量に製造する必要がある。
すなわち低水分率の細骨材を安定的にコンクリートプラントに供給する技術が求められている。
しかし従来は貯蔵槽の内部に貯蔵した細骨材の付着水を、重力によって槽の下から排水して行う、自然排水方式がほとんどであった。
The RCD method, which is one of the dam construction techniques, is a method of constructing a dam body by compacting hardened concrete, so it is necessary to produce a large amount of fine aggregate with a low surface water content.
That is, there is a demand for a technique for stably supplying a fine aggregate having a low moisture content to a concrete plant.
However, in the past, most of the natural drainage systems were such that the fine aggregate adhering water stored inside the storage tank was drained from the bottom of the tank by gravity.

特開平8−169491号公報JP-A-8-169491

前記したような自然排水方式では、次のような問題点がある。
<1> 特許文献1記載の発明に代表されるように、従来の貯蔵槽では自由水は主に重力排水により脱水する構造であるから、特に初期飽和度が高い場合や保水性の高い材料を用いる場合に、排水に多くの時間を要するものであった。
<2> 不飽和状態における細骨材中の水分は、材料の水分特性により、下方ほど高い水分率となる。
<3> そのために貯蔵槽の内部の排水が完了しても、下方の細骨材ほど水分率が高く、貯蔵槽からの細骨材の排出時に水分率の高い材料が混合してしまう、という問題もあった。
The above-mentioned natural drainage system has the following problems.
<1> As represented by the invention described in Patent Document 1, in a conventional storage tank, free water is mainly dehydrated by gravity drainage, so a material having a high initial water saturation or a material with high water retention is used. When used, draining took a lot of time.
<2> The moisture content in the fine aggregate in the unsaturated state becomes higher in moisture content downward due to the moisture characteristics of the material.
<3> Therefore, even if drainage inside the storage tank is completed, the lower the fine aggregate, the higher the moisture content, and when the fine aggregate is discharged from the storage tank, a material with a high moisture content is mixed. There was also a problem.

上記のような課題を解決する本発明の細骨材貯蔵槽は、底版と側壁と、天井部とよりなり、底版は放射状の排水溝を形成した、中央が最も高い円錐型の板であり、円錐型の斜面の途中に骨材排出口を開口してあり、貯蔵槽の内部には、吸水管の先端のストレーナーを設置してあり、吸水管に負圧を与えるように構成したことを特徴とする。
また本発明の細骨材貯蔵槽は、前記の吸水管の先端のストレーナーに圧力計や圧力測定管を設置して吸引圧を測定しうるように構成したことを特徴とする。
また本発明の細骨材貯蔵槽は、前記の吸水管に、圧縮空気を噴射する噴射装置を設置して、ストレーナーに断続的に圧縮空気を噴射しうるように構成したことを特徴とする。
また本発明の細骨材貯蔵槽は、前記の貯蔵槽の側壁には、外部から内部に連通するガイド管を設置し、このガイド管に吸水管を挿入、撤去できるように構成し、挿入した場合に吸水管先端のストレーナーが細骨材の内部に位置するように構成したことを特徴とする。
The fine aggregate storage tank of the present invention that solves the problems as described above is composed of a bottom plate, a side wall, and a ceiling portion, and the bottom plate is a conical plate having the highest center formed with a radial drainage groove, An aggregate outlet is opened in the middle of the conical slope, and a strainer at the tip of the water absorption pipe is installed inside the storage tank so that negative pressure is applied to the water absorption pipe. And
Moreover, the fine aggregate storage tank of the present invention is characterized in that a suction gauge can be measured by installing a pressure gauge or a pressure measurement tube on the strainer at the tip of the water absorption tube.
The fine aggregate storage tank of the present invention is characterized in that an injection device for injecting compressed air is installed in the water absorption pipe so that the compressed air can be intermittently injected into the strainer.
Further, the fine aggregate storage tank of the present invention is configured such that a guide pipe communicating from the outside to the inside is installed on the side wall of the storage tank, and the water absorption pipe can be inserted into and removed from the guide pipe. In this case, the strainer at the tip of the water absorption pipe is configured to be positioned inside the fine aggregate.

本発明の細骨材貯蔵槽は以上説明したようになるから次のような効果のすくなくともひとつを得ることができる。
<1> 貯蔵槽の内部には、先端にストレーナーを設けた吸水管を設置してあり、吸水管に負圧を与えるように構成してある。そのために自然排水方式と比較して、要求される表面水分率に到達するまでの排水時間を大幅に短縮することができる。
<2> 貯蔵槽の底面は放射状の排水溝を形成した、中央が最も高い円錐型底版で形成してあり、円錐型の斜面の途中に骨材排出口を開口してある。そのために水分は円錐型の底版の外周に集まり、排出口では水分の少ない骨材を排出することができる。
<3> 吸水管の先端部に圧力計や圧力測定管を設置して吸引圧を測定した場合には、実際に細骨材に作用している圧力を知ることができるから吸引圧の正確な管理を行うことができる。
<4> 吸水管の先端部の圧力を知ることができれば、負圧源で付与した負圧との差から目詰まり発生の有無を確認することができ、迅速な対処を行うことができる。
<5> 吸水管に、圧縮空気を噴射する噴射装置を設置してストレーナーに断続的に圧縮空気を噴射するように構成すれば、吸水管周囲で細骨材が脱水により固結する現象の防止、固結した場合の目詰まりの解放を促進して、吸水管からの吸込み性能を適正に回復することができる。
<6> 貯蔵槽には外部から内部に連通するガイド管を設置し、このガイド管に吸水管を挿入、撤去できるように構成し、挿入した場合に吸水管先端のストレーナーが細骨材の内部に位置するように構成すれば、損傷したり目詰まりを起こしたストレーナーだけを貯蔵槽の外部から引き出して交換することができる。したがって吸水管のメンテナンスのために貯蔵槽の内部を空にしたり、内部に人が入る必要がなく、経済的であり、安全である。
<7> 従来の重力排水であると、下方に水が集まり下部の水分率が大きくなる。その点本発明の構造であれば、下部の水分率を小さくすることができ、全体に均一の水分率で高品質な細骨材を得ることができる。
<8> 以上の結果、貯蔵槽への骨材の投入から目標水分率へ到達するまでの時間を短縮することができるとともに、保水性の高い材料の場合でも、従来のような重力排水では達成できない表面水分率を得ることができる。
<9> このような貯蔵槽を設けることによって、RCD工法など低表面水率の細骨材を用いたコンクリート構造物の施工の高速化、高品質化を達成することができる。
Since the fine aggregate storage tank of the present invention is as described above, at least one of the following effects can be obtained.
<1> A water absorption pipe provided with a strainer at the tip is installed inside the storage tank, and a negative pressure is applied to the water absorption pipe. Therefore, compared with the natural drainage method, the drainage time until reaching the required surface moisture content can be greatly shortened.
<2> The bottom surface of the storage tank is formed of a conical bottom plate having a radial drainage groove with the highest center, and an aggregate outlet is opened in the middle of the conical slope. For this reason, moisture collects on the outer periphery of the conical bottom plate, and the aggregate with less moisture can be discharged at the discharge port.
<3> When a pressure gauge or pressure measuring tube is installed at the tip of the water absorption pipe and the suction pressure is measured, the pressure actually acting on the fine aggregate can be known, so the suction pressure is accurate. Management can be performed.
<4> If the pressure at the tip of the water absorption pipe can be known, the presence or absence of clogging can be confirmed from the difference from the negative pressure applied by the negative pressure source, and a prompt action can be taken.
<5> Preventing the phenomenon that fine aggregates are consolidated around the water absorption pipe by dehydration by installing an injection device that injects the compressed air into the water absorption pipe so that the compressed air is intermittently injected to the strainer. It is possible to promote the release of clogging when consolidated, and to properly recover the suction performance from the water absorption pipe.
<6> The storage tank is provided with a guide pipe that communicates from the outside to the inside, and the water absorption pipe can be inserted and removed from this guide pipe. When inserted, the strainer at the tip of the water absorption pipe is inside the fine aggregate. If only the strainer that is damaged or clogged is pulled out from the outside of the storage tank, it can be replaced. Therefore, there is no need to empty the inside of the storage tank for maintenance of the water absorption pipe or to enter a person, and it is economical and safe.
<7> In the case of conventional gravity drainage, water gathers downward and the moisture content in the lower part increases. In that respect, if it is the structure of this invention, the moisture content of a lower part can be made small and a high-quality fine aggregate can be obtained with a uniform moisture content in the whole.
<8> As a result of the above, it is possible to shorten the time from the introduction of the aggregate to the storage tank until it reaches the target moisture content, and even in the case of a material having high water retention, it is achieved by conventional gravity drainage. An impossible surface moisture content can be obtained.
<9> By providing such a storage tank, it is possible to achieve high-speed and high-quality construction of a concrete structure using a fine aggregate with a low surface water ratio such as the RCD method.

本発明の細骨材貯蔵槽の実施例の全体の説明図。BRIEF DESCRIPTION OF THE DRAWINGS Explanatory drawing of the whole Example of the fine aggregate storage tank of this invention. 底版の実施例の説明図。Explanatory drawing of the Example of a bottom plate. 吸水管の先端の負圧を計測する実施例の説明図。Explanatory drawing of the Example which measures the negative pressure of the front-end | tip of a water absorption pipe. 自然排水と本発明の排水の経過を比較した図。The figure which compared the progress of the natural drainage and the drainage of this invention.

以下図面を参照にしながら本発明の細骨材貯蔵槽の好適な実施の形態を詳細に説明する。   Hereinafter, preferred embodiments of the fine aggregate storage tank of the present invention will be described in detail with reference to the drawings.

<1>細骨材貯蔵槽
本発明細骨材貯蔵槽1は、底版11と側壁12と、天井部13とより構成した、細骨材を一時的に収納する容器である。
骨材をクラッシャーで粉砕し、粒径ごとに分級し、分級した骨材をコンベア3で運搬してこの貯蔵槽1の上部から投入する。
投入部より上に屋根を設置して雨水の侵入を阻止している。
貯蔵槽1の下部には骨材の排出口2があり、プラントからの信号に応じて開閉し、排出口2の下のベルトコンベア3上に落下させ、コンクリートを混練するバッチャープラントに運搬する。
<1> Fine Aggregate Storage Tank The fine aggregate storage tank 1 of the present invention is a container for temporarily storing fine aggregate, which is composed of a bottom plate 11, a side wall 12, and a ceiling portion 13.
The aggregate is pulverized with a crusher, classified according to particle size, and the classified aggregate is transported by the conveyor 3 and charged from the upper part of the storage tank 1.
A roof is installed above the input to prevent rainwater from entering.
There is an aggregate outlet 2 at the bottom of the storage tank 1, which opens and closes in response to a signal from the plant, drops onto a belt conveyor 3 below the outlet 2, and transports it to a batcher plant for kneading concrete. .

<2>底版
本発明の貯蔵槽1では、その底面は単なる平板ではない。
底面は中心から放射状に排水溝11aを形成する。
かつ中央が最も高い円錐状に形成する。
底版11に円錐状の勾配を持たせることにより排水を促進させ、低表面水率の細骨材を短時間で製造することができる。
貯蔵槽1の壁面には、底版11の外周縁に相当する位置に、排水窓11bを開口する。
最下部に集積しやすい細粒分を、負圧で吸引することがないから、吸水管の目詰まりが生じにくくなる。
<2> Bottom plate In the storage tank 1 of the present invention, the bottom surface is not a simple flat plate.
The bottom surface forms drainage grooves 11a radially from the center.
And the center is formed in the highest cone shape.
By giving the bottom plate 11 a conical gradient, drainage can be promoted, and a fine aggregate with a low surface water ratio can be produced in a short time.
On the wall surface of the storage tank 1, a drainage window 11 b is opened at a position corresponding to the outer peripheral edge of the bottom plate 11.
Since fine particles that are likely to accumulate in the lowermost part are not sucked by negative pressure, clogging of the water absorption pipe is less likely to occur.

<3>骨材排出口
円錐型の斜面の途中に骨材排出口11cを開口してある
骨材排出口11cを、底版11の最下部ではなく斜面の途中に開口することによって底版11の円周部に貯まる水の影響を受けない細骨材を排出することができる。
<3> Aggregate discharge port The aggregate discharge port 11c is opened in the middle of the conical slope. By opening the aggregate discharge port 11c in the middle of the slope instead of the bottom of the bottom plate 11, the circle of the bottom plate 11 is formed. Fine aggregate that is not affected by the water accumulated in the periphery can be discharged.

<4>吸水管
貯蔵槽1の底版11に近い位置には、その内部に吸水管41の先端のストレーナー4を設置する。
この吸水管41は通常の送気パイプであり、例えば貯蔵槽1の外周を水平の輪で囲んで環状管体を配置し、その環状管体から多数本の吸水管41を分岐させて構成する。
吸水管41の他端、あるいは環状管体の途中に取り付けた中継管の他端は、負圧発生源に接続する。
したがって多数本の吸水管41のすべての先端のストレーナー4に負圧を与えることができる。
この吸水管41は、貯蔵槽1の内部にそのまま敷設するのではなく、後述するガイド管42を通して外部から挿入、引き抜きが自由であるように構成する。
<4> Water absorption pipe At a position close to the bottom plate 11 of the storage tank 1, a strainer 4 at the tip of the water absorption pipe 41 is installed therein.
The water absorption pipe 41 is a normal air supply pipe. For example, an annular pipe is arranged by surrounding the outer periphery of the storage tank 1 with a horizontal ring, and a plurality of water absorption pipes 41 are branched from the annular pipe. .
The other end of the water absorption pipe 41 or the other end of the relay pipe attached in the middle of the annular pipe is connected to a negative pressure generating source.
Therefore, negative pressure can be applied to the strainers 4 at all the ends of the multiple water absorption pipes 41.
The water absorption pipe 41 is not laid in the storage tank 1 as it is, but is configured to be freely inserted and extracted from the outside through a guide pipe 42 described later.

<5>ガイド管
貯蔵槽1の壁面には、底版11に近い位置に、外部から内部に連通するガイド管42を設置する。
このガイド管42は貯蔵槽1の壁面に、貯蔵槽1の内側を外側よりも下の位置に、すなわち貯蔵槽1の内部に向けて下向きに設けた短いパイプで構成する。
このようにガイド管42は、貯蔵槽1の最上部でもなく、最下部でもない、底版11に近い位置に配置する。
ガイド管42を通して吸水管41を挿入した場合に吸水管41先端のストレーナー4はガイド管42から露出して貯蔵槽1の内部、すなわち細骨材の内部に位置する。
ガイド管42の内径は、吸水管41の先端のストレーナー4の外径よりも大きく構成する。
その結果、ガイド管42の内部を通して吸水管41を挿入し、あるいは撤去することができるから、作業者が貯蔵槽1の中に入らないでストレーナー4が目詰まりなどの発生した吸水管41を、外部から引き抜いて補修、交換することができる。
<5> Guide tube On the wall surface of the storage tank 1, a guide tube 42 communicating from the outside to the inside is installed at a position close to the bottom plate 11.
The guide tube 42 is formed by a short pipe provided on the wall surface of the storage tank 1 so that the inside of the storage tank 1 is located at a position lower than the outside, that is, downward toward the inside of the storage tank 1.
Thus, the guide tube 42 is arranged at a position close to the bottom plate 11 that is neither the uppermost part nor the lowermost part of the storage tank 1.
When the water absorption pipe 41 is inserted through the guide pipe 42, the strainer 4 at the tip of the water absorption pipe 41 is exposed from the guide pipe 42 and is located inside the storage tank 1, that is, inside the fine aggregate.
The inner diameter of the guide tube 42 is configured to be larger than the outer diameter of the strainer 4 at the tip of the water absorption tube 41.
As a result, since the water absorption pipe 41 can be inserted or removed through the inside of the guide pipe 42, the water absorption pipe 41 in which the strainer 4 is clogged without the operator entering the storage tank 1, It can be pulled out from outside for repair and replacement.

<6>下部吸水管
細骨材を排出する排出口2の周囲には、排出口2を取り囲む状態で、下部吸水管11dを配置する。
この下部吸水管11dも、前記の吸水管41と同様に、先端にストレーナー4を位置させ、他端は負圧源に接続した管体である。
排出口2の周囲に下部吸水管11dを配置することで、壁面12から挿入したストレーナー管4ではとらえきれなかった水分を、排出の直前で吸引することができ、排出口11cの周辺の水の影響を受けない細骨材を排出することができる。
<6> Lower water absorption pipe A lower water absorption pipe 11d is disposed around the discharge port 2 for discharging the fine aggregate in a state of surrounding the discharge port 2.
Similarly to the water absorption pipe 41, the lower water absorption pipe 11d is a pipe body in which the strainer 4 is positioned at the tip and the other end is connected to a negative pressure source.
By disposing the lower water absorption pipe 11d around the discharge port 2, moisture that cannot be captured by the strainer pipe 4 inserted from the wall surface 12 can be sucked immediately before the discharge, and the water around the discharge port 11c can be sucked. Fine aggregate that is not affected can be discharged.

<7>吸水圧の測定
吸水管41の先端部に圧力計や圧力測定管を設置して吸引圧を測定することができる。
すなわち、図3に示すように、ストレーナー4に圧力計を沿わせたり、ストレーナー4からの負圧を、貯蔵槽1の外部に配置したブルドン管圧力計43で検知する方法を採用することができる。
ストレーナー4に作用させる負圧は、当然負圧発生源の圧力計で表示しているが、しかし吸水管41の損失圧力によって、発生源の数値と先端のストレーナー4での値は異なっている。
そこで上記のように先端部であるストレーナー4近傍に圧力計43を設置することによって実際に貯蔵槽1の内部の細骨材に作用している排水圧力を知ることができる。
さらにストレーナー4先端での圧力と発生源で数値とが大きく差がある場合には、目詰まりの可能性があり、その発生の有無を即座に把握することができ、不具合を生じたストレーナー4をガイド管42から引き抜いて点検するなどの対処を行うことができる。
<7> Measurement of water absorption pressure A suction gauge or a pressure measurement tube can be installed at the tip of the water absorption tube 41 to measure the suction pressure.
That is, as shown in FIG. 3, a method can be adopted in which a pressure gauge is placed along the strainer 4 or a negative pressure from the strainer 4 is detected by a Bourdon tube pressure gauge 43 disposed outside the storage tank 1. .
Naturally, the negative pressure applied to the strainer 4 is indicated by a pressure gauge of the negative pressure generation source. However, depending on the loss pressure of the water absorption pipe 41, the numerical value of the generation source differs from the value of the strainer 4 at the tip.
Therefore, the drainage pressure actually acting on the fine aggregate inside the storage tank 1 can be known by installing the pressure gauge 43 in the vicinity of the strainer 4 as the tip as described above.
Furthermore, if there is a large difference between the pressure at the tip of the strainer 4 and the numerical value at the source, there is a possibility of clogging, and the presence or absence of the occurrence can be immediately grasped. It is possible to take measures such as pulling out from the guide tube 42 and inspecting it.

<8>噴射装置
さらに本発明の貯蔵槽1には噴射装置を設置する。
噴射装置とは噴射ノズルとコンプレッサー、配管を含んだ意味である。
噴射装置の先端の噴射ノズルを、吸水管41のストレーナー4の近くに設置する。
この噴射ノズルへコンプレッサーから加圧空気を供給する。
すると、ストレーナー4の周囲の細骨材の内部に断続的に圧縮空気を噴射することができる。
この噴射装置からの断続的な噴気によって、吸水管41の周囲の細骨材の固結を防止することができる。
さらに固結してしまった場合にも、貯蔵槽1の外部から、内部の細骨材の固結状態を破壊して吸水管41の吸込み性能を回復することができる。
<8> Injection device Furthermore, the injection device is installed in the storage tank 1 of the present invention.
The injection device includes an injection nozzle, a compressor, and piping.
An injection nozzle at the tip of the injection device is installed near the strainer 4 of the water absorption pipe 41.
Pressurized air is supplied from a compressor to the injection nozzle.
Then, compressed air can be intermittently injected into the fine aggregate around the strainer 4.
The intermittent aggregate from the spray device can prevent the fine aggregate around the water absorption pipe 41 from consolidating.
Further, even when the water is tightly consolidated, the suction performance of the water absorption pipe 41 can be recovered from the outside of the storage tank 1 by destroying the solidified state of the fine aggregate inside.

<9>強制排水の機能
貯蔵槽1には、クラッシャーで破砕し、分級した水が付着した細骨材が投入されてくる。
その細骨材の内部で底版11に近い位置に、吸水管41のストレーナー4が位置している。
そのため吸水管41からの強制排水によって、自然排水と比較してきわめて短時間に所定の表面水にまで排水することができる。
その比較は図4に示すように例えば「表面水率8%」を目標にする場合に自然排水では67時間を要するものが、本発明の強制排水では半分以下の30時間に短縮することができた。
<9> Function of forced drainage In the storage tank 1, fine aggregate to which water crushed and classified by a crusher is attached is introduced.
Inside the fine aggregate, the strainer 4 of the water absorption pipe 41 is located at a position close to the bottom plate 11.
Therefore, the forced drainage from the water suction pipe 41 can drain the water to a predetermined surface water in a very short time compared to natural drainage.
As shown in FIG. 4, for example, when the target is “surface water ratio of 8%”, natural drainage requires 67 hours, but forced drainage according to the present invention can be reduced to half or less in 30 hours. It was.

<10>骨材排出口の機能
前記したように底版11は中心が高く周囲の円周部が低い円錐状であり、骨材排出口11cはその斜面の中間に位置している。
そのために強制排水しきれない水は円錐の縁周部の窓11bから外部に排出でき、水量の減少した細骨材だけを、斜面の中間の位置から取り出すことができる。
<10> Function of Aggregate Discharge Port As described above, the bottom plate 11 has a conical shape with a high center and a low peripheral circumference, and the aggregate discharge port 11c is located in the middle of the slope.
Therefore, the water that cannot be forcibly drained can be discharged to the outside through the window 11b at the peripheral edge of the cone, and only the fine aggregate with a reduced amount of water can be taken out from the middle position of the slope.

<11>排水溝の機能
中心が高い円錐状の底版11には、中心から放射状に排水溝11aを形成してあり、溝の内部には高透水材を充填してある。
そのため、底版11の傾斜に沿って水を外部に排水することができる。
<11> Function of drainage groove Conical bottom plate 11 having a high center is formed with drainage grooves 11a radially from the center, and the inside of the groove is filled with a highly water-permeable material.
Therefore, water can be drained to the outside along the inclination of the bottom plate 11.

<12>相乗的効果
以上のような機能の相乗的効果として、従来の重力による貯蔵槽1では解決できなかった、細骨材の排水時間の短縮化や、飽和度の上下方向での均質化を図ることができ、要求する水分率に調整した細骨材の効率的な生産が可能となった。
<12> Synergistic effect As a synergistic effect of the above functions, the drainage time of fine aggregates and the homogenization of the degree of saturation in the vertical direction that could not be solved by the conventional gravity storage tank 1 As a result, efficient production of fine aggregate adjusted to the required moisture content has become possible.

1:貯蔵槽
11:底版
11a:排水溝
11c:排出口
11d:下部吸水管
4:ストレーナー
41:吸水管
1: Storage tank 11: Bottom plate 11a: Drainage groove 11c: Discharge port 11d: Lower water absorption pipe 4: Strainer 41: Water absorption pipe

Claims (4)

底版と側壁と天井部とより構成した容器であり、
底版は放射状の排水溝を形成した、中央が最も高い円錐型の板であり、
円錐型の斜面の途中に骨材排出口を開口してあり、
貯蔵槽の内部には、吸水管の先端のストレーナーを設置してあり、
吸水管に負圧を与えるように構成したことを特徴とする、
細骨材貯蔵槽。
A container composed of a bottom plate, side walls and a ceiling,
The bottom plate is a conical plate with the highest center, with a radial drainage ditch.
An aggregate outlet is opened in the middle of the conical slope,
Inside the storage tank, a strainer at the tip of the water absorption pipe is installed,
It is configured to give negative pressure to the water absorption pipe,
Fine aggregate storage tank.
請求項1記載の細骨材貯蔵槽において、
吸水管の先端のストレーナーに圧力計や圧力測定管を設置して吸引圧を測定しうるように構成したことを特徴とする、
細骨材貯蔵槽。
In the fine aggregate storage tank according to claim 1,
It is characterized in that the suction pressure can be measured by installing a pressure gauge or pressure measurement tube on the strainer at the tip of the water absorption tube,
Fine aggregate storage tank.
請求項1記載の細骨材貯蔵槽において、
吸水管に、圧縮空気を噴射する噴射装置を設置して、
ストレーナーに断続的に圧縮空気を噴射しうるように構成したことを特徴とする、
細骨材貯蔵槽。
In the fine aggregate storage tank according to claim 1,
Install an injection device to inject compressed air in the water absorption pipe,
It is configured so that compressed air can be intermittently injected into the strainer.
Fine aggregate storage tank.
請求項1記載の細骨材貯蔵槽において、
貯蔵槽の側壁には、
外部から内部に連通するガイド管を設置し、
このガイド管に吸水管を挿入、撤去できるように構成し、
吸水管をガイド管に挿入した場合には、吸水管先端のストレーナーが細骨材の内部に位置するように構成したことを特徴とする、
細骨材貯蔵槽。
In the fine aggregate storage tank according to claim 1,
On the side wall of the storage tank,
Install a guide tube that communicates from outside to inside,
It is constructed so that the water absorption pipe can be inserted and removed from this guide pipe,
When the water absorption tube is inserted into the guide tube, the strainer at the tip of the water absorption tube is configured to be positioned inside the fine aggregate,
Fine aggregate storage tank.
JP2012155517A 2012-07-11 2012-07-11 Fine aggregate storage tank Active JP5947645B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012155517A JP5947645B2 (en) 2012-07-11 2012-07-11 Fine aggregate storage tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012155517A JP5947645B2 (en) 2012-07-11 2012-07-11 Fine aggregate storage tank

Publications (2)

Publication Number Publication Date
JP2014015018A true JP2014015018A (en) 2014-01-30
JP5947645B2 JP5947645B2 (en) 2016-07-06

Family

ID=50110137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012155517A Active JP5947645B2 (en) 2012-07-11 2012-07-11 Fine aggregate storage tank

Country Status (1)

Country Link
JP (1) JP5947645B2 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57120491U (en) * 1981-01-21 1982-07-27
JPS62203894U (en) * 1986-06-18 1987-12-26
JPS63150484A (en) * 1986-12-15 1988-06-23 Shibaura Eng Works Co Ltd Pump device
JPH0857698A (en) * 1994-08-19 1996-03-05 Sintokogio Ltd Briquetting machine
JPH08169491A (en) * 1994-12-19 1996-07-02 Maeda Corp Sand-making bin device
JPH08268493A (en) * 1995-03-28 1996-10-15 Cosmo Koki Co Ltd Emergency water tank
JP2012020838A (en) * 2010-07-14 2012-02-02 Kumagai Gumi Co Ltd Aggregate storage device, and method of reducing surface water of aggregate in the aggregate storage device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57120491U (en) * 1981-01-21 1982-07-27
JPS62203894U (en) * 1986-06-18 1987-12-26
JPS63150484A (en) * 1986-12-15 1988-06-23 Shibaura Eng Works Co Ltd Pump device
JPH0857698A (en) * 1994-08-19 1996-03-05 Sintokogio Ltd Briquetting machine
JPH08169491A (en) * 1994-12-19 1996-07-02 Maeda Corp Sand-making bin device
JPH08268493A (en) * 1995-03-28 1996-10-15 Cosmo Koki Co Ltd Emergency water tank
JP2012020838A (en) * 2010-07-14 2012-02-02 Kumagai Gumi Co Ltd Aggregate storage device, and method of reducing surface water of aggregate in the aggregate storage device

Also Published As

Publication number Publication date
JP5947645B2 (en) 2016-07-06

Similar Documents

Publication Publication Date Title
CN103397645B (en) A kind of dry heap arranges with wet the tailings pile discharge method combined
CN201297181Y (en) Water discharge device moved with pipe in coal mine gas extraction pipeline
CN203145473U (en) Concrete pouring distributing device
JP5947645B2 (en) Fine aggregate storage tank
CN214793772U (en) Shower head testing device
CN106182432A (en) A kind of mortar stores stirring integrated gasifying device
JP2014145157A (en) Vibration compaction method of sand layer and management method of the same
CN209317201U (en) Sandstone pulp-water separation system
CN104085625A (en) Full-automatic coal bunker water cannon dredging device
CN206859243U (en) A kind of mortar flag stone retaining wall discharge structure
CN105233534B (en) A kind of online mud discharging device of crude oil storage tank
CN203955689U (en) Concrete waste material reclaims the recycling equipment that separates
CN205446139U (en) Floating installation is used in water pump connection
CN105332383A (en) Device for rapidly blocking dewatering pipe well through drainage and decompression and method of device
CN204709885U (en) For the settling tank of alcohol disposing mother liquor
CN207295463U (en) A kind of box beam automatic maintenance device
CN201618593U (en) Anti-clog feeding apparatus applied at the bottom of vertically oriented grinding machines
CN203740391U (en) Anti-blocking storage bin for sticky and wet material distribution
CN205917835U (en) Prevent blockking up glass steel integration lifting pump station
CN204891297U (en) Waste oil collecting device of compressed air storage tank
CN209226605U (en) A kind of mine down-hole draining blowdown apparatus
CN205055570U (en) Sewage treatment jar with baffle
CN103318572A (en) Storage equipment used in alumina industry
CN205055511U (en) Mud device is arranged on line to crude oil storage tank
CN208055059U (en) A kind of novel laying hen breeding water processing equipment

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20150317

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20160224

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20160308

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160502

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: 20160531

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20160603

R150 Certificate of patent or registration of utility model

Ref document number: 5947645

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250