JPS6128607B2 - - Google Patents
Info
- Publication number
- JPS6128607B2 JPS6128607B2 JP15632976A JP15632976A JPS6128607B2 JP S6128607 B2 JPS6128607 B2 JP S6128607B2 JP 15632976 A JP15632976 A JP 15632976A JP 15632976 A JP15632976 A JP 15632976A JP S6128607 B2 JPS6128607 B2 JP S6128607B2
- Authority
- JP
- Japan
- Prior art keywords
- water glass
- acidic
- liquid
- injection
- glass liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 235000019353 potassium silicate Nutrition 0.000 claims description 56
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 55
- 239000007788 liquid Substances 0.000 claims description 45
- 230000002378 acidificating effect Effects 0.000 claims description 39
- 238000002347 injection Methods 0.000 claims description 26
- 239000007924 injection Substances 0.000 claims description 26
- 239000011344 liquid material Substances 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 2
- 239000000499 gel Substances 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001879 gelation Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【発明の詳細な説明】
本発明は、高アルカリ性の水ガラス液と酸性液
材とから酸性水ガラス液を製造する方法及びそれ
に用いる混合装置に係る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing an acidic water glass liquid from a highly alkaline water glass liquid and an acidic liquid material, and a mixing apparatus used therein.
一般に市販されている水ガラス液は、製造上及
び貯蔵安定性の点から高アルカリ性（PH12前後）
である。従来技術によれば、この高アルカリ性水
ガラスに酸性液材を添加・混合して水ガラス液の
PHを11前後に調整して地中に注入し固結させるこ
とにより、地盤の改良が行なわれてきた。然し乍
ら、高アルカリ性の水ガラスを地中に注入し固結
させると長期間にわたつてアルカリが溶出し続
け、その結果地下水を汚染し環境が破壊される惧
れがあることが明らかになつた。 Generally, commercially available water glass liquid is highly alkaline (around PH12) from the viewpoint of manufacturing and storage stability.
It is. According to the conventional technology, an acidic liquid material is added and mixed with this highly alkaline water glass to create a water glass liquid.
Ground improvement has been carried out by adjusting the pH to around 11 and injecting it into the ground and solidifying it. However, it has become clear that when highly alkaline water glass is injected into the ground and allowed to solidify, alkali will continue to elute over a long period of time, which could contaminate groundwater and destroy the environment.
上記のアルカリ汚染の問題を解決するため中性
−酸性領域における水ガラスのゲル化乃至固結を
利用する地盤改良工法が開発されている。本発明
は、中性−酸性領域における水ガラスのゲル化反
応を利用する注入薬液の材料となる強酸性水ガラ
ス液の製造方法及び製造装置を提供せんとするも
のである。 In order to solve the above problem of alkali contamination, a ground improvement method has been developed that utilizes gelation or consolidation of water glass in a neutral-acidic region. The present invention aims to provide a method and apparatus for producing a strongly acidic water glass solution, which is a material for an injection drug solution, that utilizes the gelation reaction of water glass in a neutral-acidic region.
ここで、酸性液材を加えて水ガラス液のPHを変
化させた場合の水ガラスの挙動について簡単に説
明する。 Here, we will briefly explain the behavior of water glass when the pH of the water glass liquid is changed by adding an acidic liquid material.
前述の如く、酸性液材添加前の約11.5乃至12の
PH値を有する水ガラス液はゲル化を起こさず長期
間安定な液状で保持できる。水ガラス液に混入す
る酸性液材の量を増加させてゆくと混合液のPHが
下がり、水ガラス成分がゲル化するようになる。
混合液のPH値が約10乃至11になると水ガラスは１
分乃至５分でゲル化する。従来技術の薬液注入工
法においては水ガラスをこの領域（即ち高アルカ
リ領域）で固結させていた。 As mentioned above, about 11.5 to 12
Water glass liquid with a pH value does not gel and can be maintained in a stable liquid state for a long period of time. As the amount of acidic liquid material mixed into the water glass liquid increases, the pH of the mixed liquid decreases, and the water glass component begins to gel.
When the pH value of the mixed liquid is about 10 to 11, water glass becomes 1
It gels in minutes to 5 minutes. In the conventional chemical injection method, water glass was solidified in this region (ie, high alkaline region).
さて、混合液のPHを更に下げるとPH９乃至８に
おいて水ガラスは瞬結に近い時間内にゲル化する
状態になる。この瞬結に近いゲルタイムを持つ液
のPH値は、用いた酸性液材の種類によつて異な
り、例えば硫酸又は塩酸を用いたときには約８、
酸性液材として燐酸を用いたときには約９であ
る。本明細書においては、水ガラスが瞬結に近い
状態でゲル化するPH値（以下、「臨界PH値」と呼
ぶ）よりもアルカリ性の領域をアルカリ領域、そ
れより酸性側の領域を中性−酸性領域と呼ぶこと
にする。従つて、本明細書における中性−酸性領
域とは通常用いられる定義とは少し異なることに
注意されたい。 Now, when the pH of the mixed liquid is further lowered, at a pH of 9 to 8, water glass becomes a gel within a time close to instantaneous setting. The PH value of a liquid with a gel time close to instantaneous setting varies depending on the type of acidic liquid used. For example, when sulfuric acid or hydrochloric acid is used, the PH value is about 8,
When phosphoric acid is used as the acidic liquid material, it is about 9. In this specification, a region more alkaline than the PH value at which water glass gels in a state close to instantaneous setting (hereinafter referred to as the "critical PH value") is defined as an alkaline region, and a region more acidic than that is defined as a neutral region. We will call this the acidic region. Therefore, it should be noted that the definition of the neutral-acidic region in this specification is slightly different from the commonly used definition.
又、一般に市販され使用されている高アルカリ
性の水ガラス液を単に「水ガラス液」と、臨界PH
値より酸性側（通常の定義による弱アルカリ性の
ものを含む）の水ガラスを「酸性水ガラス液」と
呼ぶことにする。 In addition, the highly alkaline water glass liquid that is generally commercially available and used is simply called "water glass liquid" and the critical pH
Water glass that is more acidic (including weakly alkaline water glass according to the usual definition) will be referred to as "acidic water glass liquid."
さて、更に酸性液材の量を増加して、更に混合
液のPHを下げてゆくと、混合液のゲルタイムは漸
次長くなり、中性−酸性領域内においても現場で
の注入操作に適するゲルタイムを有する混合液と
なる。 Now, if the amount of acidic liquid material is further increased and the pH of the mixed liquid is further lowered, the gel time of the mixed liquid will gradually become longer, and even within the neutral-acidic region, the gel time suitable for on-site injection operations can be reached. It becomes a mixed liquid with.
然し乍ら、最初は高アルカリ性である水ガラス
液を中性−酸性領域に移行させるためには特別の
工夫を有する。水ガラス液は粘度が高く、上述の
ように臨界PH値付近を極めて短時間で越えさせる
ことが難しい。例えば、水で稀釈して適切な濃度
に調整した酸を水ガラス液に注いだ場合には、白
色粉状の沈澱が生じ液が白濁する。これは酸の注
入場所付近において水ガラスが部分的にゲル化す
るためであると考えられる。即ち、水ガラス液に
酸性液材を注入する方法によつては均一な酸性水
ガラス液を調整することができないことがわかつ
た。 However, special measures are required to shift the water glass liquid, which is initially highly alkaline, to a neutral-acidic region. Water glass liquid has a high viscosity, and as mentioned above, it is difficult to exceed the critical PH value in an extremely short period of time. For example, when an acid diluted with water and adjusted to an appropriate concentration is poured into a water glass solution, a white powdery precipitate forms and the solution becomes cloudy. This is thought to be because the water glass partially gels near the acid injection site. That is, it has been found that it is not possible to prepare a uniform acidic water glass solution depending on the method of injecting the acidic liquid material into the water glass solution.
従つて、酸性液材を強く撹拌しながら、これに
水ガラス液を注入して瞬間的に臨界PH領域を通過
させる必要がある。又、水ガラス液を稀釈して粘
度を下げることが望ましく硫酸のような粘度の高
い酸性液材を用いるときには酸性液材も稀釈して
用いることが好ましい。 Therefore, it is necessary to inject the water glass liquid into the acidic liquid material while stirring it strongly so that it instantly passes through the critical PH region. Further, it is desirable to dilute the water glass liquid to lower its viscosity, and when using an acidic liquid material with high viscosity such as sulfuric acid, it is preferable to dilute the acidic liquid material as well.
単に、酸性液材を強く撹拌するだけで混合槽の
上部から底部まで全体にわたつて均一に酸性液材
と水ガラスの混合を行なうためには高速度で回転
する高能率の撹拌装置が必要になる。しかし、実
際の注入工事の現場では一度に大量の（例えば
200〜1000）酸性水ガラスを製造しなければな
らず大規模で高価な装置が必要になる。このよう
に大規模な高速度で回転する高能率の撹拌装置は
入手も困難であり運搬や設置に多大の労力及び時
間を要する。 In order to mix the acidic liquid and water glass uniformly throughout the mixing tank from the top to the bottom simply by strongly stirring the acidic liquid, a highly efficient stirring device that rotates at high speed is required. Become. However, in actual injection work sites, large quantities (for example,
200-1000) Acidic water glass must be produced, requiring large-scale and expensive equipment. Such a large-scale, high-efficiency stirring device that rotates at high speed is difficult to obtain, and requires a great deal of labor and time to transport and install.
本発明は、酸性液材に水ガラスを加えたときに
生じる可能性のある白色沈殿や局部的なゲルの析
出を防止し、完全に溶液状で均一且つ透明な酸性
水ガラス液を製造する実施が容易な方法及び装置
を提供するものである。即ち、本発明によれば、
酸性液材に水ガラスを噴射注入して酸と水ガラス
の接触表面積を出来るだけ大きくすることにより
大規模な高速度回転の撹拌装置を必要とせずに容
易に大量の酸性水ガラス液を製造することができ
る。勿論、水ガラスの噴射注入と同時に酸性液材
を撹拌して更に良好な混合を図ることもできる。 The present invention aims to prevent the white precipitate and local gel precipitation that may occur when water glass is added to an acidic liquid material, and to produce a completely solution-like, uniform, and transparent acidic water glass liquid. The present invention provides a method and apparatus that are easy to use. That is, according to the present invention,
By injecting water glass into the acidic liquid material and increasing the contact surface area between the acid and water glass as much as possible, a large amount of acidic water glass liquid can be easily produced without the need for a large-scale, high-speed stirring device. be able to. Of course, even better mixing can be achieved by stirring the acidic liquid material at the same time as the injection of water glass.
本発明は、注入工事現場において白濁や局部的
なゲル化を来たすことなく、確実に酸性又は強酸
性の水ガラス液を製造する方法及びこれに用いる
製造装置を提供することを目的とする。 An object of the present invention is to provide a method for reliably producing acidic or strongly acidic water glass liquid without causing cloudiness or local gelation at a pouring work site, and a production apparatus used therein.
本発明によれば、耐酸性のライニングを施した
混合槽内にできるだけ強い酸性液材を入れ、酸性
液材を撹拌しながらこれに微小滴又は細流状で水
ガラス液を噴射注入することを特徴とする。本発
明方法を用いれば、白色沈澱や局部的なゲル化部
分を生じることなく、完全な溶液状で均一且つ透
明な酸性水ガラス液を得ることができる。 According to the present invention, an acidic liquid material as strong as possible is placed in a mixing tank provided with an acid-resistant lining, and water glass liquid is injected into the acidic liquid material in the form of minute drops or trickles while stirring the acidic liquid material. shall be. By using the method of the present invention, it is possible to obtain a homogeneous and transparent acidic water glass liquid in the form of a complete solution without producing white precipitates or localized gelled areas.
以下に本発明の実施に用いる装置を模式的に示
す添付の図面を参照しつつ、本発明の実施例につ
いて詳細に説明する。 Embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which schematically illustrate the apparatus used for carrying out the invention.
混合槽１に水82を入れ、この水中に撹拌器の
撹拌翼２を投入した。水を撹拌し乍ら工業用の75
％硫酸３を徐々に混合して酸性液材となる均一
な稀硫酸を得た。 Water 82 was put into the mixing tank 1, and the stirring blade 2 of the stirrer was put into the water. 75 for industrial use while stirring water
% sulfuric acid was gradually mixed to obtain a homogeneous dilute sulfuric acid as an acidic liquid material.
内径約2.54cm（１インチ）のステンレス製パイ
プの先端を閉鎖し、先端の近傍の管壁部に直径約
２mmの複数の小孔部４を設けた注入管３を柔軟な
管５を介して圧入ポンプ６の出口側に接続した。
ポンプの吸入側は高アルカリ性の水ガラスを入れ
たアルカリ性水ガラス液貯槽（図示せず）に接続
した。 The tip of a stainless steel pipe with an inner diameter of about 2.54 cm (1 inch) is closed, and an injection tube 3 having a plurality of small holes 4 with a diameter of about 2 mm in the tube wall near the tip is inserted through a flexible tube 5. It was connected to the outlet side of the press-in pump 6.
The suction side of the pump was connected to an alkaline water glass liquid storage tank (not shown) containing highly alkaline water glass.
混合槽中の酸性液材を強く撹拌しながら、圧入
ポンプ６を始動させて注入管３の小孔部４を通つ
て高圧で水ガラス液15を噴射注入してPH約2.0
の均一で透明な酸性水ガラス液（シリカゾル液）
100を得た。 While strongly stirring the acidic liquid material in the mixing tank, start the injection pump 6 and inject the water glass liquid 15 at high pressure through the small hole 4 of the injection pipe 3 until the pH is approximately 2.0.
Uniform and transparent acidic water glass liquid (silica sol liquid)
Got 100.
上記の実施例においては、注入管の先端部の近
傍の全周壁上にほぼ等しい間隔をあけて噴射口部
を10個所に設けてあり、液の撹拌は撹拌翼２の高
速回転を利用している。 In the above embodiment, ten injection ports are provided at approximately equal intervals on the entire circumferential wall near the tip of the injection tube, and the liquid is stirred by using the high-speed rotation of the stirring blade 2. There is.
然し乍ら、噴射口部となる小孔部は、管の片側
にだけ設けるか、或いは管壁部に設けるかわりに
管の先端部に設けて、噴射注入される水ガラス液
に方向性を与えて高圧で注入される水ガラス液に
よつて液の撹拌を行なうこともできる。 However, the small hole that serves as the injection port may be provided only on one side of the pipe, or may be provided at the tip of the pipe instead of on the pipe wall to give directionality to the water glass liquid that is injected and generate high pressure. The liquid can also be stirred by the water glass liquid injected.
又、添付の図面は本発明の原理を模式的にわか
り易く示すために、撹拌装置、噴射注入部材とも
に簡単な投入式の形で示してあるが、撹拌装置、
噴射注入部材を混合槽に取りつけ、噴射注入部材
の噴射ノズル部分を上下方向に移動自在に且つ旋
回自在に混合槽の側壁に取りつけた混合装置を用
いると便宜である。 Furthermore, in order to schematically and easily understand the principle of the present invention, the attached drawings show both the stirring device and the injection injection member in a simple throw-in type; however, the stirring device,
It is convenient to use a mixing device in which the injection injection member is attached to the mixing tank, and the injection nozzle portion of the injection injection member is attached to the side wall of the mixing tank so as to be movable up and down and swingable.
添付の図面は本発明方法の実施に用いる混合装
置の原理を模式的に示す説明図である。
１……混合槽、２……撹拌翼、３……注入管、
４……小孔部（ノズル）、５……柔軟な管、６…
…圧入ポンプ。
The accompanying drawings are explanatory diagrams schematically showing the principle of a mixing device used to carry out the method of the present invention. 1... Mixing tank, 2... Stirring blade, 3... Injection pipe,
4...Small hole (nozzle), 5...Flexible tube, 6...
...Pressure pump.
Claims (1)
注入薬液に用いる酸性水ガラス液の製造方法であ
つて、混合槽内に酸性液材を入れ、この中に強ア
ルカリ性水ガラス液を激しく噴射注入することに
より撹拌・混合を行なうことを特徴とする酸性水
ガラス液の製造方法。 ２ 酸性水ガラス液を製造するために用いる装置
であつて、耐酸性内張りを施した混合槽と、該混
合槽の内側壁に上下方向に移動自在に且つ旋回自
在に取り付けられ一つ又は複数の噴射ノズルを設
けた噴射注入部材と、前記噴射注入部材に接続さ
れた加圧装置と、前記加圧装置に接続されている
アルカリ性水ガラス液貯槽とから成ることを特徴
とする装置。[Scope of Claims] 1. A method for producing an acidic water glass liquid used as a ground injection chemical solution for solidifying water glass in a neutral-acidic region, wherein an acidic liquid material is placed in a mixing tank, and a strongly alkaline liquid is placed in a mixing tank. A method for producing an acidic water glass liquid, characterized by stirring and mixing the water glass liquid by vigorously injecting the water glass liquid. 2 Equipment used to produce acidic water glass liquid, which includes a mixing tank with an acid-resistant lining, and one or more units attached to the inner wall of the mixing tank so as to be movable in the vertical direction and pivotable. 1. An apparatus comprising an injection injection member provided with an injection nozzle, a pressurizing device connected to the injection injection member, and an alkaline water glass liquid storage tank connected to the pressurizing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15632976A JPS5380421A (en) | 1976-12-27 | 1976-12-27 | Method and apparatus for production of acidic water glass liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15632976A JPS5380421A (en) | 1976-12-27 | 1976-12-27 | Method and apparatus for production of acidic water glass liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5380421A JPS5380421A (en) | 1978-07-15 |
| JPS6128607B2 true JPS6128607B2 (en) | 1986-07-01 |
Family
ID=15625395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15632976A Granted JPS5380421A (en) | 1976-12-27 | 1976-12-27 | Method and apparatus for production of acidic water glass liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5380421A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6280612U (en) * | 1985-11-11 | 1987-05-23 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55164286A (en) * | 1979-06-11 | 1980-12-20 | Sanshin Kensetsu Kogyo Kk | Chemical grouting method of construction |
-
1976
- 1976-12-27 JP JP15632976A patent/JPS5380421A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6280612U (en) * | 1985-11-11 | 1987-05-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5380421A (en) | 1978-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107718279A (en) | The concrete central mix plant of raw material precrushing | |
| JPS6128607B2 (en) | ||
| SE431339B (en) | SET FOR STABILIZING A WATER-containing GEL-CREATING SYSTEM THROUGH SEATING WITH MOLECULATED ACID | |
| CN211447032U (en) | Novel grouting material device | |
| KR101209218B1 (en) | high strength grouting chemicals with no leaching automatic manufacture equipment | |
| CN218716792U (en) | A shield machine auxiliary deviation correction system | |
| CN214221208U (en) | Synchronous grouting system for shield excavation gap | |
| CN213032448U (en) | Automatic adding device for cross-linking agent of water-based gel fracturing fluid | |
| CN107999523B (en) | Sulfonate acid sludge neutralization and solidification equipment | |
| JPS6314758B2 (en) | ||
| JP2774821B2 (en) | Preparation method of chemical solution for soil stabilization | |
| CN111962541A (en) | Foundation pit water burst plugging method based on double-liquid grouting method under complex stratum condition | |
| CN219088017U (en) | Irrigation liquid supply processing system is planted to peach | |
| JPS5817516B2 (en) | Doshitsu Antei Kahou | |
| KR20060131204A (en) | Silica Sol Automatic Manufacturing Equipment | |
| JPS5853678B2 (en) | Soil stabilization method | |
| JPS587763B2 (en) | Ground injection method of silicate grout | |
| JPH083976A (en) | Vertical drain method | |
| CN214050549U (en) | PAM dosing device for sewage treatment sedimentation tank | |
| JPS6315882A (en) | Non-alkali chemical grouting method | |
| CN209289616U (en) | A kind of phenol formaldehyde foam board assembly line agitating device | |
| CN209653419U (en) | A kind of fabricated construction grouter | |
| JPH0146442B2 (en) | ||
| JPS59184283A (en) | Curable composition | |
| JPS6347415A (en) | Construction of cast-in-place concrete pile |