JP2001247865A - Device for preparing non-alkaline solution for ground consolidation - Google Patents
Device for preparing non-alkaline solution for ground consolidationInfo
- Publication number
- JP2001247865A JP2001247865A JP2000060015A JP2000060015A JP2001247865A JP 2001247865 A JP2001247865 A JP 2001247865A JP 2000060015 A JP2000060015 A JP 2000060015A JP 2000060015 A JP2000060015 A JP 2000060015A JP 2001247865 A JP2001247865 A JP 2001247865A
- Authority
- JP
- Japan
- Prior art keywords
- supply system
- storage tank
- aqueous solution
- pipe
- water glass
- 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
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は非アルカリ性地盤硬
化用薬液（以下、単に非アルカリ性薬液という）の製造
装置に関する。水ガラスの水溶液と、通常は硫酸を主材
とし、これに必要に応じてマグネシウム塩、カルシウム
塩、アルミニウム塩、リン酸塩等を適宜に配合した硬化
剤の水溶液とを混合して、非アルカリ性薬液を製造し、
所謂ワンショット法で地盤中へ注入してゲル化させるこ
とにより、該地盤を硬化させることが行なわれる。かか
る地盤硬化作業の現場では、上記のように製造した非ア
ルカリ性薬液を貯留槽へ一時的に貯留しておき、それが
使用により減ったときに、再び上記のように製造して、
貯留槽へ補充するという操作が繰り返し間欠的に行なわ
れる。必要とされる大量の非アルカリ性薬液を一度に製
造し、これを大容量の貯留槽に貯留しておくことも考え
られるが、このようにすると、単に現場作業にふさわし
くない大容量の貯留槽が必要になるというだけでなく、
貯留槽内における長時間の滞留により、非アルカリ性薬
液が貯留槽内でゲル化したり、或は地盤中への注入途中
でゲル化するという不都合を生じるからである。本発明
は、地盤硬化作業の現場において繰り返し間欠的に非ア
ルカリ性薬液を製造するのに便利な装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing a non-alkaline soil hardening chemical (hereinafter simply referred to as non-alkaline chemical). An aqueous solution of water glass is mixed with an aqueous solution of a curing agent, usually containing sulfuric acid as a main material, and optionally containing magnesium salts, calcium salts, aluminum salts, phosphates, etc. Manufacturing chemicals,
The ground is hardened by injecting into the ground and gelling by the so-called one-shot method. At the site of such ground hardening work, the non-alkali chemical solution manufactured as described above is temporarily stored in a storage tank, and when it is reduced by use, manufactured again as described above,
The operation of replenishing the storage tank is repeatedly performed intermittently. It is conceivable to produce a large amount of the required non-alkali chemical solution at one time and store it in a large-capacity storage tank.However, in this case, a large-capacity storage tank that is simply not suitable for on-site work is considered. Not only is it necessary
This is because the non-alkaline chemical solution gels in the storage tank due to long-term residence in the storage tank, or gels during injection into the ground. The present invention relates to a device that is convenient for repeatedly and intermittently producing a non-alkali chemical solution at the site of a ground hardening operation.
【０００２】[0002]
【従来の技術】従来、上記のような非アルカリ性薬液の
製造装置として、混合槽と、該混合槽に挿入された撹拌
翼と、該混合槽に挿入された先端部に複数の小孔を有す
る注入管とを備えるものが提案されている（特公昭６１
−２８６０７）。この従来装置は、予め混合槽に硬化剤
の水溶液を入れておき、これを撹拌翼で撹拌しつつ、注
入管先端部の小孔から水ガラスの水溶液を注入して、双
方を混合し、非アルカリ性薬液を製造するというもので
ある。また別に、混合槽と、該混合槽にその壁面に沿っ
て挿入されたパイプと、該混合槽にその中心部へ垂直に
挿入された先端に開口を有するノズルとを備えるものも
提案されている（特公平７−８７２３）。この従来装置
は、予め混合槽にパイプから硬化剤の水溶液を入れてお
き、ここに中心部のノズル先端から水ガラスの水溶液を
圧入して、この圧入により発生する旋回流を利用して双
方を混合し、非アルカリ性薬液を製造するというもので
ある。2. Description of the Related Art Conventionally, an apparatus for producing a non-alkaline chemical solution as described above has a mixing tank, a stirring blade inserted into the mixing tank, and a plurality of small holes at a tip end inserted into the mixing tank. A device equipped with an injection pipe has been proposed (Japanese Patent Publication No. Sho 61).
-28607). In this conventional apparatus, an aqueous solution of a hardening agent is put in a mixing tank in advance, and an aqueous solution of water glass is injected from a small hole at the tip of an injection pipe while stirring the aqueous solution with a stirring blade. It is to produce an alkaline chemical solution. Separately, a mixing tank, a pipe inserted into the mixing tank along the wall thereof, and a nozzle having an opening at a tip vertically inserted into the center of the mixing tank have been proposed. (Tokuhei 7-8723). In this conventional apparatus, an aqueous solution of a hardening agent is put into a mixing tank in advance from a pipe, and an aqueous solution of water glass is injected into the mixing tank from the tip of a nozzle at a central portion thereof, and the two are made using a swirling flow generated by the injection. It mixes to produce a non-alkali chemical solution.
【０００３】ところが、上記のような従来装置には、水
ガラスの水溶液を供給する注入管先端部の小孔付近或は
ノズル先端の開口付近において、水ガラスがゲル化し易
く、そのため注入管先端部の小孔或はノズル先端の開口
が目詰まりしたり、或はゲル化物が混合槽内に持ち込ま
れて浮遊するという問題がある。このような問題は特
に、水ガラスの水溶液の供給を停止する回数が多いほど
大きくなる。水ガラスの水溶液の供給を停止したとき
に、注入管先端部の小孔付近或はノズル先端の開口付近
に残留する水ガラスが硬化剤と部分的に接触してアルカ
リ性薬液を形成し、そのｐＨとの関係もあるが、短時間
で、場合によっては瞬間的にゲル化してしまうのであ
る。However, in the conventional apparatus as described above, the water glass tends to gel near the small hole at the tip of the injection pipe for supplying the aqueous solution of water glass or near the opening at the tip of the nozzle. There is a problem that the small hole or the opening at the tip of the nozzle is clogged, or the gelled material is brought into the mixing tank and floats. In particular, such a problem becomes more serious as the number of times the supply of the aqueous solution of water glass is stopped is increased. When the supply of the aqueous solution of water glass is stopped, the water glass remaining near the small hole at the tip of the injection pipe or near the opening at the tip of the nozzle comes into partial contact with the curing agent to form an alkaline chemical, and the pH of the solution is changed. However, gelation occurs in a short time, and in some cases, instantaneously.
【０００４】[0004]
【発明が解決しようとする課題】本発明が解決しようと
する課題は、地盤硬化作業の現場で繰り返し間欠的に非
アルカリ性薬液を製造する場合において、ゲル化物を生
じない、したがって目詰まり等の支障を生じない、作業
性の良い装置を提供する処にある。A problem to be solved by the present invention is that when a non-alkaline chemical solution is repeatedly and intermittently produced at the site of a ground hardening operation, no gelled product is produced, and therefore, there is no problem such as clogging. It is in the process of providing a device with good workability which does not cause the problem.
【０００５】[0005]
【課題を解決するための手段】上記の課題を解決する本
発明は、水ガラスの水溶液と硬化剤の水溶液とを混合し
て非アルカリ性薬液を製造する装置であって、水ガラス
の水溶液を貯留する第１貯留槽と、硬化剤の水溶液を貯
留する第２貯留槽と、該第１貯留槽に接続された水ガラ
スの水溶液を供給する第１供給系と、該第２貯留槽に接
続された硬化剤の水溶液を供給する第２供給系と、該第
１供給系及び該第２供給系の下流側に接続されたこれら
を合流する合流管と、該合流管の出口側に接続されたミ
キサと、該ミキサの出口側に設置された非アルカリ性薬
液を貯留する第３貯留槽とを備え、該合流管の出口側が
入口側よりも大径に形成されており、該入口側が該出口
側よりも上方に配置されていて、該入口側に接続された
該第１供給系及び該第２供給系の下流側が該入口側より
も更に上方に配置されて成ることを特徴とする非アルカ
リ性薬液の製造装置に係る。SUMMARY OF THE INVENTION The present invention, which solves the above-mentioned problems, is an apparatus for producing a non-alkaline chemical solution by mixing an aqueous solution of water glass and an aqueous solution of a curing agent, and stores the aqueous solution of water glass. A first storage tank for storing, a second storage tank for storing an aqueous solution of a curing agent, a first supply system for supplying an aqueous solution of water glass connected to the first storage tank, and a first storage system connected to the second storage tank. A second supply system for supplying the aqueous solution of the curing agent, a merging pipe connected to the first supply system and the downstream side of the second supply system for merging these, and an outlet connected to the merging pipe. A mixer, and a third storage tank for storing a non-alkali chemical solution provided at an outlet side of the mixer, wherein an outlet side of the merging pipe is formed to have a larger diameter than an inlet side, and the inlet side is the outlet side. The first supply system, which is arranged above the first supply system and is connected to the inlet side. According to the manufacturing apparatus of a non-alkaline chemical liquid downstream of the second supply system is characterized by comprising further disposed above the inlet side.
【０００６】本発明に係る製造装置は、水ガラスの水溶
液と硬化剤の水溶液とを混合して非アルカリ性薬液を製
造する装置である。水ガラスとしては、市販されている
任意の水ガラスを使用できる。通常はＪＩＳ３号の水ガ
ラスを使用するが、Ｎａ2Ｏ１モルに対してＳｉＯ2を
３．６〜４．５モルの割合で含有するＳｉＯ2高モル比
の水ガラスも使用できる。また硬化剤としては、通常は
硫酸を主剤とし、これに必要に応じてマグネシウム塩、
カルシウム塩、アルミニウム塩、リン酸塩等を適宜に配
合したものを使用できる。The manufacturing apparatus according to the present invention is an apparatus for manufacturing a non-alkali chemical solution by mixing an aqueous solution of water glass and an aqueous solution of a curing agent. As the water glass, any commercially available water glass can be used. Normally, water glass according to JIS No. 3 is used, but water glass having a high molar ratio of SiO 2 containing 3.6 to 4.5 mol of SiO 2 to 1 mol of Na 2 O can also be used. In addition, as a curing agent, usually sulfuric acid as a main component, and if necessary, a magnesium salt,
Those appropriately mixed with a calcium salt, an aluminum salt, a phosphate and the like can be used.
【０００７】本発明に係る製造装置は、水ガラスの水溶
液を貯留する第１貯留槽と、硬化剤の水溶液を貯留する
第２貯留槽と、該第１貯留槽に接続された水ガラスの水
溶液を供給する第１供給系と、該第２貯留槽に接続され
た硬化剤の水溶液を供給する第２供給系と、該第１供給
系及び該第２供給系の下流側に接続されたこれらを合流
する合流管と、該合流管の出口側に接続されたミキサ
と、該ミキサの出口側に設置された非アルカリ性薬液を
貯留する第３貯留槽とを備えている。[0007] The manufacturing apparatus according to the present invention comprises a first storage tank for storing an aqueous solution of water glass, a second storage tank for storing an aqueous solution of a curing agent, and an aqueous solution of water glass connected to the first storage tank. A first supply system for supplying an aqueous solution of a curing agent connected to the second storage tank, and a second supply system for supplying an aqueous solution of the curing agent connected downstream of the first supply system and the second supply system. , A mixer connected to the outlet side of the merger pipe, and a third storage tank provided at the outlet side of the mixer for storing a non-alkali chemical solution.
【０００８】第１貯留槽から第１供給系を介しての水ガ
ラスの水溶液の供給及び第２貯留槽から第２供給系を介
しての硬化剤の水溶液の供給は、自然流下によることも
できるが、ポンプを用いるのが好ましい。この場合、第
１供給系及び第２供給系には、上流側から下流側に向か
い、ポンプ、流量計及び流量調節弁を介装するのがより
好ましい。[0008] The supply of the aqueous solution of water glass from the first storage tank via the first supply system and the supply of the aqueous solution of the curing agent from the second storage tank via the second supply system can also be by gravity flow. However, it is preferable to use a pump. In this case, it is more preferable that the first supply system and the second supply system are provided with a pump, a flow meter, and a flow control valve from the upstream side to the downstream side.
【０００９】第１供給系及び第２供給系の下流側はこれ
らを合流する合流管に接続されている。かかる合流管と
しては、Ｙ字管やＴ字管を使用できるが、Ｙ字管を使用
するのが好ましい。合流管はその出口側が入口側よりも
大径に形成されており、好ましくは出口側が入口側の
１．５〜２．５倍の大径に形成されている。合流管の一
方の入口側に第１供給系の下流側を接続し、また他方の
入口側に第２供給系の下流側を接続して、その出口側で
第１供給系を介して供給した水ガラスの水溶液と第２供
給系を介して供給した硬化剤の水溶液とを合流させるの
であるが、これらの供給を停止したときに、例えば第１
供給系及び第２供給系に介装したポンプの作動を停止し
たときに、他方の入口側から一方の入口側へと硬化剤の
水溶液が逆流するのを防止するためである。かかる逆流
が生じると、一方の入口側に残留することのある水ガラ
スの水溶液と逆流した硬化剤の水溶液とが部分的に接触
してアルカリ性薬液を形成し、水ガラスがゲル化する。[0009] The downstream side of the first supply system and the second supply system is connected to a merging pipe that joins them. As such a merging pipe, a Y-shaped pipe or a T-shaped pipe can be used, but a Y-shaped pipe is preferably used. The outlet side of the junction tube is formed to have a larger diameter than the inlet side, and preferably, the outlet side is formed to be 1.5 to 2.5 times as large as the inlet side. The downstream side of the first supply system was connected to one inlet side of the junction pipe, the downstream side of the second supply system was connected to the other inlet side, and the supply was performed via the first supply system at the outlet side. The aqueous solution of water glass and the aqueous solution of the curing agent supplied via the second supply system are combined. When the supply of these is stopped, for example, the first
This is to prevent the aqueous solution of the curing agent from flowing backward from the other inlet side to the one inlet side when the operation of the pump interposed in the supply system and the second supply system is stopped. When such backflow occurs, the aqueous solution of water glass, which may remain at one inlet side, and the aqueous solution of the hardener flowing back partially contact to form an alkaline chemical solution, and the water glass gels.
【００１０】合流管はその入口側が出口側よりも上方に
配置されており、またかかる合流管の入口側に接続され
た第１供給系及び第２供給系の下流側は該入口側よりも
更に上方に配置されている。第１供給系の下流側を通し
合流管の一方の入口側から水ガラスの水溶液を供給し、
また第２供給管の下流側を通し該合流管の他方の入口側
から硬化剤の水溶液を供給して、双方の水溶液を該合流
管の出口側で合流させるのであるが、これらの供給を停
止したときに、例えば第１供給管及び第２供給管に介装
したポンプの作動を停止したときに、合流管の一方の入
口側から出口側への水ガラスの水溶液の液切れを良く
し、また合流管の他方の入口側から出口側への硬化剤の
水溶液の液切れを良くして、これらの入口側に水ガラス
の水溶液や硬化剤の水溶液が残留するのを防止するため
である。かかる残留があると、一方の入口側に残留する
水ガラスの水溶液に他方の入口側に残留する硬化剤の水
溶液が部分的に接触してアルカリ性薬液を形成し、水ガ
ラスがゲル化する。[0010] The inlet side of the merging pipe is disposed above the outlet side, and the downstream sides of the first supply system and the second supply system connected to the inlet side of the merging pipe are further higher than the inlet side. It is located above. Supplying an aqueous solution of water glass from one inlet side of the merging tube through the downstream side of the first supply system;
Further, an aqueous solution of the curing agent is supplied from the other inlet side of the merging pipe through the downstream side of the second supply pipe, and both aqueous solutions are merged at the outlet side of the merging pipe. When, for example, when the operation of the pump interposed in the first supply pipe and the second supply pipe is stopped, the drainage of the aqueous solution of water glass from one inlet side to the outlet side of the merging pipe is improved, Another reason is to improve the drainage of the aqueous solution of the hardening agent from the other inlet side to the outlet side of the junction pipe, and to prevent the aqueous solution of water glass or the aqueous solution of the hardening agent from remaining at these inlet sides. When there is such a residue, the aqueous solution of the water glass remaining at one inlet side partially contacts the aqueous solution of the hardener remaining at the other inlet side to form an alkaline chemical solution, and the water glass gels.
【００１１】合流管の出口側はミキサに接続されてい
る。かかるミキサとしてはパイプ型のミキサを使用する
のが好ましく、なかでもスタティックミキサを使用する
のが好ましい。The outlet side of the junction pipe is connected to a mixer. As such a mixer, it is preferable to use a pipe type mixer, and it is particularly preferable to use a static mixer.
【００１２】ミキサの出口側には、これを臨んで第３貯
留槽が設置されている。前記のように供給し、合流した
水ガラスの水溶液と硬化剤の水溶液とをミキサで混合し
て非アルカリ性薬液を製造するが、第３貯留槽は、かく
して製造した非アルカリ性薬液を一時的に貯留しておく
ためのものである。第３貯留槽の非アルカリ性薬液はそ
の使用により減るので、必要の都度、前記と同様にして
新たに非アルカリ性薬液を製造し、第３貯留槽へ補充す
る。かかる補充は、第３貯留槽内の非アルカリ性薬液の
貯留量を目視により確認しつつ、手動操作で行なうこと
もできるが、第３貯留槽にレベル計を取付け、このレベ
ル計からの信号により第１供給系及び第２供給系に介装
したポンプの作動を制御して行なうのが好ましい。例え
ば、第３貯留槽内の非アルカリ性薬液の液面が設定値よ
りも下がったときには、これをレベル計で検知し、この
レベル計からの信号により、電源設備のスイッチ機構を
付勢して、第１供給系及び第２供給系に介装したポンプ
の作動を開始する。逆に、第３貯留槽内の非アルカリ性
薬液の液面が設定値よりも上がったときには、これをレ
ベル計で検知し、このレベル計からの信号により、電源
設備のスイッチ機構を消勢して、第１供給系及び第２供
給系に介装したポンプの作動を停止する。At the outlet side of the mixer, a third storage tank is provided facing the mixer. The non-alkaline chemical solution is manufactured by mixing and mixing the aqueous solution of water glass and the aqueous solution of the curing agent supplied by the mixer with a mixer. The third storage tank temporarily stores the non-alkaline chemical solution thus manufactured. It is for keeping. Since the use of the non-alkaline chemical in the third storage tank is reduced, a new non-alkaline chemical is newly produced and replenished to the third storage tank each time it is necessary. Such replenishment can be performed manually by visually checking the storage amount of the non-alkali chemical solution in the third storage tank. However, a level meter is attached to the third storage tank, and the third meter is supplied with a signal from the level meter. It is preferable to control and operate the pumps interposed in the first supply system and the second supply system. For example, when the liquid level of the non-alkali chemical in the third storage tank falls below a set value, this is detected by a level meter, and a signal from this level meter activates a switch mechanism of the power supply equipment, The operation of the pump interposed in the first supply system and the second supply system is started. Conversely, when the level of the non-alkali chemical in the third storage tank rises above a set value, this is detected by a level meter, and the signal from the level meter deactivates the switch mechanism of the power supply equipment. Then, the operation of the pump interposed in the first supply system and the second supply system is stopped.
【００１３】第１供給系及び第２供給系に介装したポン
プの作動開始及び作動停止を間欠的に繰り返して非アル
コール性薬液を製造するに際しては、第１供給系のポン
プの作動開始を第２供給系のポンプの作動開始よりも少
し遅くし、また第１供給系のポンプの作動停止を第２供
給系のポンプの作動停止よりも少し早くするのが好まし
い。ポンプの作動開始時及び作動停止時に、合流管の出
口側及びミキサへ第２供給系を介して少量の硬化剤の水
溶液を流すことにより、これらにアルカリ性薬液が形成
されるのをより確実に防止し、よって水ガラスがゲル化
するおそれをより確実に未然になくしておくためであ
る。第１供給系に介装したポンプと第２供給系に介装し
たポンプとの間に、それらの作動開始及び作動停止に際
し、上記のように時間的なずれを持たせるためには、こ
れを手動操作で行なうこともできるが、前記したように
レベル計からの信号により電源設備のスイッチ機構を付
勢或は消勢して第１供給系及び第２供給系に介装したポ
ンプを作動開始或は作動停止させる場合には、このスイ
ッチ機構にタイマを付設すればよい。When a non-alcoholic chemical is manufactured by intermittently repeating the start and stop of the operation of the pump interposed in the first supply system and the second supply system, the operation of the pump of the first supply system must be started and stopped. It is preferable that the operation of the pump of the two supply system is slightly delayed from the start of the operation of the pump of the two supply system, and the operation stop of the pump of the first supply system is slightly earlier than the operation stop of the pump of the second supply system. At the time of starting and stopping the operation of the pump, a small amount of an aqueous solution of a curing agent is supplied to the outlet side of the merging tube and the mixer via the second supply system, thereby more reliably preventing the formation of an alkaline chemical solution therein. Therefore, the risk of gelation of the water glass is more reliably eliminated. In order to provide a time lag between the pump interposed in the first supply system and the pump interposed in the second supply system when starting and stopping the operation as described above, It can be performed manually, but as described above, the switch mechanism of the power supply equipment is energized or deactivated by the signal from the level meter, and the operation of the pump interposed in the first supply system and the second supply system is started. Alternatively, when the operation is stopped, a timer may be added to this switch mechanism.
【００１４】[0014]
【発明の実施の形態】図１は本発明に係る製造装置を略
示する全体側面図である。図示した製造装置は、水ガラ
スの水溶液を貯留する第１貯留槽１と、硬化剤の水溶液
を貯留する第２貯留槽２と、第１貯留槽１に接続された
水ガラスの水溶液を供給する第１供給系３と、第２貯留
槽２に接続された硬化剤の水溶液を供給する第２供給系
４と、第１供給系３及び第２供給系４の下流側に接続さ
れたこれらを合流する合流管５と、合流管５の出口側に
接続されたミキサ６と、ミキサ６の出口側に設置された
非アルカリ性薬液を貯留する第３貯留槽７とを備えてい
る。FIG. 1 is an overall side view schematically showing a manufacturing apparatus according to the present invention. The illustrated manufacturing apparatus supplies a first storage tank 1 for storing an aqueous solution of water glass, a second storage tank 2 for storing an aqueous solution of a curing agent, and an aqueous solution of water glass connected to the first storage tank 1. A first supply system 3, a second supply system 4 for supplying an aqueous solution of a curing agent connected to the second storage tank 2, and a second supply system 4 connected downstream of the first supply system 3 and the second supply system 4. It comprises a merging pipe 5 for merging, a mixer 6 connected to the outlet side of the merging pipe 5, and a third storage tank 7 installed on the outlet side of the mixer 6 for storing a non-alkali chemical solution.
【００１５】第１供給系３及び第２供給系４にはそれぞ
れ、上流側から下流側へと向かい、ポンプ３１，４１、
流量計３２，４２、逆止弁３３，４３及び流量調節弁３
４，４４が介装されている。合流管５としてはＹ字管が
使用されており、またミキサ６としてはスタティックミ
キサが使用されている。合流管５の一方の入口側５１に
接続された第１供給系３の下流側３５、合流管５の他方
の入口側５２に接続された第２供給系４の下流側４５、
合流管５及び合流管５の出口側５３に接続されたミキサ
６は、図示しない枠材で全体としては上下方向に支持さ
れている。第３貯留槽７にはレベル計７１が取付けられ
ており、レベル計７１は電源設備８の図示しないスイッ
チ機構に接続されていて、このスイッチ機構はポンプ３
１，４１へと接続されている。The first supply system 3 and the second supply system 4 are respectively connected from the upstream side to the downstream side, and pumps 31, 41,
Flow meters 32 and 42, check valves 33 and 43, and flow control valve 3
4, 44 are interposed. A Y-shaped pipe is used as the merging pipe 5, and a static mixer is used as the mixer 6. A downstream side 35 of the first supply system 3 connected to one inlet side 51 of the merging pipe 5, a downstream side 45 of the second supply system 4 connected to the other inlet side 52 of the merging pipe 5,
The merging pipe 5 and the mixer 6 connected to the outlet side 53 of the merging pipe 5 are vertically supported as a whole by a frame material (not shown). A level meter 71 is attached to the third storage tank 7, and the level meter 71 is connected to a switch mechanism (not shown) of the power supply equipment 8.
1, 41.
【００１６】合流管５の出口側５３は入口側５１，５２
の２倍の大径に形成されており、入口側５１，５２は出
口側５３よりも上方に配置されていて、入口側５１，５
２に接続された第１供給系３及び第２供給系４の下流側
３５，４５は入口側５１，５２よりも更に上方に配置さ
れている。The outlet side 53 of the merging pipe 5 is connected to the inlet sides 51, 52.
The inlet sides 51 and 52 are arranged above the outlet side 53, and the inlet sides 51 and 5 are formed.
The downstream sides 35 and 45 of the first supply system 3 and the second supply system 4 connected to the second supply system 2 are disposed further above the entrance sides 51 and 52.
【００１７】図１に示した製造装置では、予め第１貯留
槽１に水ガラスの水溶液を調製して貯留しておき、また
第２貯留槽２に硬化剤の水溶液を調製して貯留してお
く。これらは必要の都度、再調製して補充する。当初
は、電源設備８のスイッチ機構を付勢してポンプ３１，
４１を作動させ、流量計３２，４２の測定値が設定値と
なるよう流量調節弁３４，４４の開度を調節して、第１
貯留槽１から第１供給系３を介して水ガラスの水溶液を
合流管５の一方の入口側５１へ供給し、同時に第２貯留
槽２から第２供給系４を介して硬化剤の水溶液を合流管
５の他方の入口側５２へ供給する。供給した水ガラスの
水溶液と硬化剤の水溶液とは合流管５の出口側５３で合
流した後、ミキサ６で混合されて非アルカリ性薬液とな
るので、これを第３貯留槽７に貯留する。かかる非アル
カリ性薬液の製造及び貯留を一定時間行なうと、第３貯
留槽７内の非アルカリ性薬液の液面は次第に上昇する
が、その液面が設定値よりも上がったとき、これをレベ
ル計７１で検知し、レベル計７１からの信号により、電
源設備８のスイッチ機構を消勢して、ポンプ３１，４１
の作動を停止する。In the manufacturing apparatus shown in FIG. 1, an aqueous solution of water glass is prepared and stored in the first storage tank 1 in advance, and an aqueous solution of the curing agent is prepared and stored in the second storage tank 2. deep. They are reconstituted and replenished as needed. Initially, the switch mechanism of the power supply equipment 8 is energized to activate the pump 31,
41 is operated to adjust the opening of the flow control valves 34 and 44 so that the measured values of the flow meters 32 and 42 become the set values.
An aqueous solution of water glass is supplied from the storage tank 1 via the first supply system 3 to one inlet side 51 of the merging pipe 5, and at the same time, an aqueous solution of the curing agent is supplied from the second storage tank 2 via the second supply system 4. It is supplied to the other inlet side 52 of the merging pipe 5. The supplied aqueous solution of water glass and the aqueous solution of the curing agent are combined at the outlet side 53 of the joining pipe 5 and then mixed by the mixer 6 to become a non-alkali chemical solution, which is stored in the third storage tank 7. When the production and storage of such a non-alkaline chemical are performed for a certain period of time, the liquid level of the non-alkaline chemical in the third storage tank 7 gradually rises. When the liquid level rises above a set value, the level is measured by a level meter 71. , And the signal from the level meter 71 deactivates the switch mechanism of the power supply equipment 8, and the pumps 31 and 41
Stop the operation of.
【００１８】第３貯留槽７内の非アルカリ性薬液の液面
が使用により設定値よりも下がったときには、これをレ
ベル計７１で検知し、このレベル計７１からの信号によ
り、電源設備８のスイッチ機構を付勢して、ポンプ３
１，４１の作動を再開する。この再開により第３貯留槽
７内の非アルカリ性薬液の液面が設定値よりも上がった
ときには、これをレベル計７１で検知し、このレベル計
７１からの信号により、電源設備８のスイッチ機構を消
勢して、ポンプ３１，４１の作動を再び停止する。以下
はこの繰り返しである。When the liquid level of the non-alkaline chemical in the third storage tank 7 falls below a set value due to use, this is detected by a level meter 71 and a signal from the level meter 71 is used to switch the power supply equipment 8. Energize the mechanism and pump 3
The operations of 1, 41 are restarted. When the liquid level of the non-alkaline chemical in the third storage tank 7 rises above the set value due to this restart, this is detected by the level meter 71, and a signal from the level meter 71 activates the switch mechanism of the power supply equipment 8. The pump is deenergized, and the operations of the pumps 31 and 41 are stopped again. The following is this repetition.
【００１９】図１について以上説明した手順で、下記の
条件下に非アルカリ性薬液を繰り返し間欠的に製造し
た。 条件 第１貯留槽１に貯留及び補充した水ガラスの水溶液：Ｊ
ＩＳ３号の水ガラス７０リットル当たり水１４０リット
ルの割合で均一混合したもの 第２貯留槽２に貯留及び補充した硬化剤の水溶液：７８
％硫酸９リットル当たり１７％硫酸アルミニウム５kg及
び水１９０リットルの割合で均一混合したもの流量計３
２，４２の測定値：２０リットル／分 ポンプ３１，４１の作動停止から作動開始までの時間：
１０分 ポンプ３１，４１の作動停止回数（ポンプ３１，４１の
作動開始回数）：２０回 上記の条件下に非アルカリ性薬液を繰り返し間欠的に製
造したところ、下流側５１，５２も含めて第１供給系３
及び第２供給系４並びに合流管５には目詰まりを生ぜ
ず、また第３貯留槽７内の非アルカリ性薬液中にゲル化
物の浮遊を認めなかった。According to the procedure described above with reference to FIG. 1, a non-alkali chemical solution was repeatedly and intermittently produced under the following conditions. Conditions Aqueous solution of water glass stored and replenished in first storage tank 1: J
An aqueous solution of a curing agent stored and replenished in the second storage tank 2 with a uniform mixture at a ratio of 140 liters of water per 70 liters of water glass of IS3: 78
A mixture of 5 kg of 17% aluminum sulfate and 190 liters of water per 9 liters of 9% sulfuric acid Flow meter 3
Measured values of 2, 42: 20 l / min. Time from stoppage of pumps 31, 41 to start of operation:
10 minutes Number of times the pumps 31 and 41 are stopped (number of times the pumps 31 and 41 are started): 20 times When the non-alkaline chemical solution is repeatedly and intermittently manufactured under the above conditions, the first liquid including the downstream sides 51 and 52 is produced. Supply system 3
In addition, no clogging occurred in the second supply system 4 and the merging pipe 5, and no floating gelled product was found in the non-alkali chemical solution in the third storage tank 7.
【００２０】[0020]
【発明の効果】既に明らかなように、以上説明した本発
明には、地盤硬化作業の現場で繰り返し間欠的に非アル
カリ性薬液を製造する場合において、製造途中でゲル化
物を生ぜず、したがってゲル化物に起因する目詰まり等
の支障を生ぜず、作業性が良いという効果がある。As is apparent from the above description, the present invention described above does not produce a gelled substance during the production of a non-alkaline chemical solution repeatedly and intermittently at the site of ground hardening work, and therefore does not produce a gelled substance. There is an effect that workability is good without causing trouble such as clogging caused by the above.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明に係る製造装置を略示する全体側面図。FIG. 1 is an overall side view schematically showing a manufacturing apparatus according to the present invention.
１・・第１貯留槽、２・・第２貯留槽、３・・第１供給
系、４・・第２供給系、５・・合流管、６・・ミキサ、
７・・第３供給系、８・・電源設備、３１，４１・・ポ
ンプ、３２，４２・・流量計、３４，４４・・流量調節
弁1. First storage tank, 2. Second storage tank, 3. First supply system, 4. Second supply system, 5, Convergent pipe, 6, Mixer,
7. Third supply system, 8, Power supply equipment, 31, 41, Pump, 32, 42, Flow meter, 34, 44, Flow control valve
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） // Ｃ０９Ｋ 103:00 Ｃ０９Ｋ 103:00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme court ゛ (Reference) // C09K 103: 00 C09K 103: 00
Claims (6)
混合して非アルカリ性地盤硬化用薬液を製造する装置で
あって、水ガラスの水溶液を貯留する第１貯留槽と、硬
化剤の水溶液を貯留する第２貯留槽と、該第１貯留槽に
接続された水ガラスの水溶液を供給する第１供給系と、
該第２貯留槽に接続された硬化剤の水溶液を供給する第
２供給系と、該第１供給系及び該第２供給系の下流側に
接続されたこれらを合流する合流管と、該合流管の出口
側に接続されたミキサと、該ミキサの出口側に設置され
た非アルカリ性地盤硬化用薬液を貯留する第３貯留槽と
を備え、該合流管の出口側が入口側よりも大径に形成さ
れており、該入口側が該出口側よりも上方に配置されて
いて、該入口側に接続された該第１供給系及び該第２供
給系の下流側が該入口側よりも更に上方に配置されて成
ることを特徴とする非アルカリ性地盤硬化用薬液の製造
装置。An apparatus for producing a non-alkaline soil hardening chemical by mixing an aqueous solution of water glass and an aqueous solution of a hardener, comprising: a first storage tank for storing an aqueous solution of water glass; And a first supply system for supplying an aqueous solution of water glass connected to the first storage tank,
A second supply system connected to the second storage tank for supplying an aqueous solution of a curing agent; a first supply system and a merging pipe connected downstream of the second supply system for merging the first and second supply systems; A mixer connected to the outlet side of the pipe, and a third storage tank for storing a non-alkali ground hardening chemical solution installed at the outlet side of the mixer, wherein the outlet side of the merging pipe has a larger diameter than the inlet side And the inlet side is disposed above the outlet side, and the downstream sides of the first supply system and the second supply system connected to the inlet side are further disposed above the inlet side. An apparatus for producing a non-alkaline soil hardening chemical solution, comprising:
上流側から下流側へと向かい、ポンプ、流量計及び流量
調節弁を介装するものである請求項１記載の非アルカリ
性地盤硬化用薬液の製造装置。2. The first supply system and the second supply system each include:
The non-alkaline soil hardening chemical manufacturing apparatus according to claim 1, wherein a pump, a flow meter, and a flow control valve are interposed from the upstream side to the downstream side.
計により第１供給系及び第２供給系のポンプの作動を制
御するようにした請求項２記載の非アルカリ性地盤硬化
用薬液の製造装置。3. The non-alkaline soil hardening chemical solution according to claim 2, wherein the third storage tank includes a level meter, and the level meters control the operation of the pumps of the first supply system and the second supply system. manufacturing device.
給系のポンプの作動開始よりも少し遅くし、また第１供
給系のポンプの作動停止を第２供給系のポンプの作動停
止よりも少し早くするようにした請求項２又は３記載の
非アルカリ性地盤硬化用薬液の製造装置。4. The operation of the pump of the first supply system is slightly delayed from the start of the operation of the pump of the second supply system, and the operation of the pump of the first supply system is stopped by the operation of the pump of the second supply system. The apparatus for producing a non-alkaline soil hardening chemical according to claim 2 or 3, wherein the apparatus is set to be slightly earlier.
又は４記載の非アルカリ性地盤硬化用薬液の製造装置。5. The combination pipe according to claim 1, wherein said junction pipe is a Y-shaped pipe.
Or the manufacturing apparatus of the non-alkali ground hardening chemical liquid of Claim 4.
項１、２、３、４又は５記載の非アルカリ性地盤硬化用
薬液の製造装置。6. The apparatus for producing a non-alkaline soil hardening chemical according to claim 1, wherein the mixer is a static mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000060015A JP4507339B2 (en) | 2000-03-06 | 2000-03-06 | Non-alkaline ground hardening chemical manufacturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000060015A JP4507339B2 (en) | 2000-03-06 | 2000-03-06 | Non-alkaline ground hardening chemical manufacturing equipment |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2001247865A true JP2001247865A (en) | 2001-09-14 |
| JP2001247865A5 JP2001247865A5 (en) | 2007-02-01 |
| JP4507339B2 JP4507339B2 (en) | 2010-07-21 |
Family
ID=18580393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000060015A Expired - Lifetime JP4507339B2 (en) | 2000-03-06 | 2000-03-06 | Non-alkaline ground hardening chemical manufacturing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4507339B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010121083A (en) * | 2008-11-21 | 2010-06-03 | Fuji Kagaku Kk | Production method of consolidating material for grouting |
| JP2013136654A (en) * | 2011-12-28 | 2013-07-11 | Nagoya Cullet Kk | Apparatus for preparing chemical liquid for hardening non-alkaline ground |
| JP2013221035A (en) * | 2012-04-12 | 2013-10-28 | Shimoda Gijutsu Kenkyusho:Kk | Grout manufacturing device and method of manufacturing grout |
| JP2014240036A (en) * | 2013-06-11 | 2014-12-25 | 株式会社トクヤマ | Mixer and method for producing metal oxide sol using the same |
| JP5732657B1 (en) * | 2014-10-03 | 2015-06-10 | 強化土株式会社 | Silica sol grout production apparatus and production method |
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| JPS6084176A (en) * | 1983-10-17 | 1985-05-13 | Mitsubishi Precision Co Ltd | Nozzle apparatus |
| JPH0480413A (en) * | 1990-07-20 | 1992-03-13 | Asahi Kogyosha:Kk | Method of mixing ground solidifiable chemical and device thereof |
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| JPH1018282A (en) * | 1996-06-27 | 1998-01-20 | Heisei Technos Kk | Chemical grouting method |
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| JPS5374709A (en) * | 1976-12-16 | 1978-07-03 | Nitto Chemical Industry Co Ltd | Method of stabilizing nature of soil |
| JPS6084176A (en) * | 1983-10-17 | 1985-05-13 | Mitsubishi Precision Co Ltd | Nozzle apparatus |
| JPH0480413A (en) * | 1990-07-20 | 1992-03-13 | Asahi Kogyosha:Kk | Method of mixing ground solidifiable chemical and device thereof |
| JPH07237231A (en) * | 1994-02-28 | 1995-09-12 | Mitsubishi Electric Corp | Thermocurable resin molding device and molding of thermocurable resin |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010121083A (en) * | 2008-11-21 | 2010-06-03 | Fuji Kagaku Kk | Production method of consolidating material for grouting |
| JP2013136654A (en) * | 2011-12-28 | 2013-07-11 | Nagoya Cullet Kk | Apparatus for preparing chemical liquid for hardening non-alkaline ground |
| JP2013221035A (en) * | 2012-04-12 | 2013-10-28 | Shimoda Gijutsu Kenkyusho:Kk | Grout manufacturing device and method of manufacturing grout |
| JP2014240036A (en) * | 2013-06-11 | 2014-12-25 | 株式会社トクヤマ | Mixer and method for producing metal oxide sol using the same |
| JP5732657B1 (en) * | 2014-10-03 | 2015-06-10 | 強化土株式会社 | Silica sol grout production apparatus and production method |
| JP2016074778A (en) * | 2014-10-03 | 2016-05-12 | 強化土株式会社 | Manufacturing installation and manufacturing method of silica sol grout |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4507339B2 (en) | 2010-07-21 |
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