JPH03257259A - Addition agent spray nozzle for ready-mixed concrete or the like - Google Patents

Addition agent spray nozzle for ready-mixed concrete or the like

Info

Publication number
JPH03257259A
JPH03257259A JP5493990A JP5493990A JPH03257259A JP H03257259 A JPH03257259 A JP H03257259A JP 5493990 A JP5493990 A JP 5493990A JP 5493990 A JP5493990 A JP 5493990A JP H03257259 A JPH03257259 A JP H03257259A
Authority
JP
Japan
Prior art keywords
water
nozzle body
high pressure
main unit
nozzle
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
JP5493990A
Other languages
Japanese (ja)
Other versions
JP2579022B2 (en
Inventor
Sumio Yariuchi
鎗内 澄生
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.)
SUGIUE ENG KK
Original Assignee
SUGIUE ENG KK
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 SUGIUE ENG KK filed Critical SUGIUE ENG KK
Priority to JP5493990A priority Critical patent/JP2579022B2/en
Publication of JPH03257259A publication Critical patent/JPH03257259A/en
Application granted granted Critical
Publication of JP2579022B2 publication Critical patent/JP2579022B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To make mixing possible in a many-sided manner by injecting water at a high pressure from a water injection hole of a helical groove to stir concrete when a concrete material is moved in a nozzle main unit by high pressure air. CONSTITUTION:A closed high pressure water chamber 6 is formed between an outer cylinder 3 and the peripheral surface of a nozzle main unit 4 by inserting the cylindrical nozzle main unit 4 into the outer cylinder. Helical grooves 9 are formed in the internal peripheral surface of the nozzle main unit 4, and a large number of these helical grooves 9 and water injection holes 10, opened to the high pressure water chamber 6, are drilled in the nozzle main unit 4. Next, water is supplied to the high pressure water chamber 6, injected at a high pressure from the water injection hole 10 and added to a concrete material by moving it from one end side of the nozzle main unit 4. In this way, the water can be added to the material in a many-sided manner.

Description

【発明の詳細な説明】 (産業上の利用分野) この発明は、セメントや骨材等のコンクリート材料と水
とを混合して、この混合物を壁等に吹き付けるのに用い
る生コンクリート等添加材吹付ノズルに関するものであ
る。
Detailed Description of the Invention (Field of Industrial Application) This invention is a method for spraying additives such as ready-mixed concrete, which is used to mix concrete materials such as cement and aggregate with water and spray this mixture onto walls, etc. It concerns the nozzle.

(従来の技術) この種の生コンクリート等添加材吹付ノズルとしては、
従来から第4図〜第7図に示したようなものが考えられ
ている。
(Conventional technology) This type of additive spraying nozzle for ready-mixed concrete, etc.
Conventionally, devices such as those shown in FIGS. 4 to 7 have been considered.

第4図、第5図に示した生コンクリート等添加材吹付ノ
ズルは、混合用の筒状のノズル本体lに水噴射孔2を多
数穿設している。このノズル本体lには吹付用のノズル
(図示せず)が取り付けられる。
The nozzle for spraying additives such as fresh concrete shown in FIGS. 4 and 5 has a cylindrical mixing nozzle main body l with a large number of water injection holes 2. A spray nozzle (not shown) is attached to this nozzle body l.

また、第6図、第7図に示した生コンクリート等添加材
吹付ノズルは、ノズル本体l内に噴射される水流が格子
状になるように水噴射孔2を配列した例を示したもので
ある。
In addition, the nozzle for spraying additives such as ready-mixed concrete shown in FIGS. 6 and 7 shows an example in which the water injection holes 2 are arranged so that the water flow injected into the nozzle body L forms a grid pattern. be.

この様な生コンクリート等添加材吹付ノズルでは、セメ
ントや骨材等のコンクリート材料を高圧エアでノズル本
体l内に圧送すると共に、高圧水ポンプで水と急結剤を
水噴射孔2からノズル本体l内に噴射させることにより
、コンクリート材料と水とがノズル本体1内で混合され
た後に排出される。この排出された混合物、すなわち生
コンクリートは図示を省略した吹付用のノズルから噴射
されて壁等に吹き付けられる。
In such a nozzle for spraying additives such as fresh concrete, concrete materials such as cement and aggregate are pumped into the nozzle body using high-pressure air, and water and quick-setting agent are pumped through the water injection hole 2 into the nozzle body using a high-pressure water pump. By injecting into the nozzle body 1, the concrete material and water are mixed in the nozzle body 1 and then discharged. This discharged mixture, ie, fresh concrete, is sprayed from a spray nozzle (not shown) onto a wall or the like.

(発明が解決しようとする課題) しかしながら、上述した生コンクリート等添加材吹付ノ
ズルでは、コンクリート材料がノズル本体1内を一端側
から他端側に向けて直線的に移動する構成であるため、
水噴射孔2から噴射される水をコンクリート材料に多面
的に添加して混合することができなかった。
(Problems to be Solved by the Invention) However, in the above-mentioned spraying nozzle for additives such as ready-mixed concrete, the concrete material moves linearly within the nozzle body 1 from one end side to the other end side.
The water injected from the water injection holes 2 could not be added to the concrete material in many ways and mixed.

そこで、この発明は、ノズル本体内を移動するコンクリ
ート材料に水を多面的に添加することができる生コンク
リート等添加材吹付ノズルを提供することを目的とする
ものである。
SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a nozzle for spraying additives such as ready-mixed concrete, which can add water from multiple angles to concrete material moving within the nozzle body.

(課題を解決するための手段) この目的を遠戚するため、この発明は、筒状のノズル本
体を外筒に挿通し、該外筒とノズル本体の外周面との間
に密閉された高圧水室を形成すると共に、前記ノズル本
体の内周面に螺旋溝を形成し、該螺旋溝と高圧水室に開
口する水噴射孔を前記ノズル本体に螺旋溝に沿って多数
穿設した生コンクリート等添加材吹付ノズルとしたこと
を特徴とするものである。
(Means for Solving the Problems) In order to achieve this object distantly, the present invention provides a system in which a cylindrical nozzle body is inserted into an outer cylinder, and a sealed high pressure is created between the outer cylinder and the outer peripheral surface of the nozzle body. Fresh concrete having a water chamber formed therein, a spiral groove formed on the inner circumferential surface of the nozzle body, and a number of water injection holes opening into the spiral groove and the high-pressure water chamber drilled in the nozzle body along the spiral groove. It is characterized by having a spray nozzle for spraying additives such as the like.

(作用) この様な構成によれば、コンクリート材料を高圧エアで
ノズル本体内に供給すると、このコンクリート材料はノ
ズル本体内を一端側から他端側に移動する。この際、螺
旋溝の部分では乱流が発生して、コンクリート材料が攪
拌される。
(Function) According to such a configuration, when concrete material is supplied into the nozzle body with high pressure air, this concrete material moves from one end side to the other end side within the nozzle body. At this time, turbulent flow is generated in the spiral groove portion, and the concrete material is agitated.

一方、高圧水室に高圧の水を供給すると、この水は水噴
射孔から乱流の生じている螺旋溝内に高圧で噴射される
ので、攪拌されているコンクリート材料に水が添加され
て多面的に混合されることになる。
On the other hand, when high-pressure water is supplied to the high-pressure water chamber, this water is injected at high pressure from the water injection hole into the spiral groove where turbulence is occurring, so water is added to the concrete material being stirred and multi-faceted. It will be mixed.

(実施例) 以下、本発明の一実施例を第1図〜第3図に基づいて説
明する。
(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

第1図、第2図において、3は両端部に内方フランジ3
a、 3aが設けられた外筒、4は外筒3に挿通された
筒状のノズル本体である。
In Figs. 1 and 2, 3 indicates inner flanges 3 at both ends.
a and 3a are provided with an outer cylinder, and 4 is a cylindrical nozzle body inserted into the outer cylinder 3.

また、5,5は内方フランジ3a、 3aの内周面とノ
ズル本体4の外周面との間に介装されたシールリング、
6は外筒3とノズル本体4との間に形成された高圧水室
、7は外筒3に形成された高圧水投入口である。尚、ノ
ズル本体4の一端部にはフランジ4aが形成され、ノズ
ル本体4の他端部には抜は止め用のリング8が螺合され
ている。
Further, 5, 5 is a seal ring interposed between the inner circumferential surface of the inner flange 3a, 3a and the outer circumferential surface of the nozzle body 4;
6 is a high pressure water chamber formed between the outer cylinder 3 and the nozzle body 4, and 7 is a high pressure water inlet formed in the outer cylinder 3. A flange 4a is formed at one end of the nozzle body 4, and a ring 8 for preventing removal is screwed onto the other end of the nozzle body 4.

しかも、ノズル本体4の内周面には螺旋溝9が形成され
、この螺旋溝9と高圧水室6に開口する水噴射孔lOが
ノズル本体4に螺旋溝9に沿って多数穿設されている。
Moreover, a spiral groove 9 is formed on the inner circumferential surface of the nozzle body 4, and a large number of water injection holes IO opening into the spiral groove 9 and the high-pressure water chamber 6 are bored in the nozzle body 4 along the spiral groove 9. There is.

尚、ノズル本体4には吹付用の混合物噴射ノズル(図示
せず)が取り付けられる。
Note that a mixture injection nozzle (not shown) for spraying is attached to the nozzle body 4.

この様な構成によれば、コンクリート材料を高圧エアで
ノズル本体4内に供給すると、このコンクリート材料は
ノズル本体4内を一端側から他端側に移動する。この際
、螺旋溝9の部分では乱流が発生して、コンクリート材
料が攪拌される。
According to such a configuration, when concrete material is supplied into the nozzle body 4 with high pressure air, this concrete material moves inside the nozzle body 4 from one end side to the other end side. At this time, turbulence is generated in the spiral groove 9 and the concrete material is stirred.

一方、高圧水室6に高圧の水と急結剤の混合したものを
供給すると、この水と急結剤は水噴射孔10から乱流の
生じている螺旋溝9内に高圧で噴射されるので、攪拌さ
れているコンクリート材料に水が添加されて多面的に混
合されることになる。
On the other hand, when a mixture of high-pressure water and quick-setting agent is supplied to the high-pressure water chamber 6, this water and quick-setting agent are injected at high pressure from the water injection hole 10 into the spiral groove 9 where turbulent flow is occurring. Therefore, water is added to the concrete material being stirred and mixed from many sides.

この様にして混合製造された生コンクリートは、図示し
ない噴射ノズルから噴射されて、壁等に吹き付けられる
ことになる。
The ready-mixed concrete mixed and manufactured in this manner is sprayed from a spray nozzle (not shown) and sprayed onto a wall or the like.

(発明の効果) この発明は、以上説明したように、筒状のノズル本体を
外筒に挿通し、該外筒とノズル本体の外周面との間に密
閉された高圧水室を形成すると共に、前記ノズル本体の
内周面に螺旋溝を形成し、該螺旋溝と高圧水室に開口す
る水噴射孔を前記ノズル本体に螺旋溝に沿って多数穿設
した構成としたので、ノズル本体内を移動するコンクリ
ート材料に水を多面的に添加することができる。
(Effects of the Invention) As explained above, the present invention inserts a cylindrical nozzle body into an outer cylinder, forms a sealed high-pressure water chamber between the outer cylinder and the outer peripheral surface of the nozzle body, and , a spiral groove is formed on the inner circumferential surface of the nozzle body, and a number of water injection holes opening into the spiral groove and the high-pressure water chamber are bored in the nozzle body along the spiral groove. Water can be multidimensionally added to moving concrete materials.

また、従来の吹付ノズルでは、水の添加穴(水噴射孔)
が0.5〜1mm程度のため、この水噴射孔が生コンク
リートの材料でつまってしまうことも多い。しかし、本
発明の吹付ノズルによれば、生コンクリート材料が水噴
射孔に直接接触することが従来構造に比べて少なくなる
ので、生コンクリート材料が水噴射孔につまりにくくな
る効果がある。
In addition, in conventional spray nozzles, the water addition hole (water injection hole)
Since the water injection hole is approximately 0.5 to 1 mm, the water injection hole is often clogged with fresh concrete material. However, according to the spray nozzle of the present invention, the direct contact of the fresh concrete material with the water injection hole is reduced compared to the conventional structure, so there is an effect that the fresh concrete material is less likely to clog the water injection hole.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は、この発明に係る生コンクリート等添加材吹付
ノズルの断面図である。 第2図は、第1図に示した生コンクリート等添加材吹付
ノズルの側面図である。 第3図は、第1図に示したノズル本体の部分斜視図であ
る。 第4図〜第7図は、従来の生コンクリート等添加材吹付
ノズル用のノズル本体の説明図である。 3・・・外筒 4・・・ノズル本体 6・・・高圧水室 9・・・螺旋溝 10・・・水噴射孔 3・・・外筒 4・・・ノズル本体 6・・・高圧水室 9・・・螺旋溝 lO・・・水噴射孔 第4図 第6図 第5図 第7図
FIG. 1 is a sectional view of a nozzle for spraying additives such as fresh concrete according to the present invention. FIG. 2 is a side view of the nozzle for spraying additives such as fresh concrete shown in FIG. 1. FIG. 3 is a partial perspective view of the nozzle body shown in FIG. 1. FIGS. 4 to 7 are explanatory diagrams of a nozzle body for a conventional nozzle for spraying additives such as ready-mixed concrete. 3...Outer tube 4...Nozzle body 6...High pressure water chamber 9...Spiral groove 10...Water injection hole 3...Outer tube 4...Nozzle body 6...High pressure water Chamber 9...Spiral groove lO...Water injection hole Fig. 4 Fig. 6 Fig. 5 Fig. 7

Claims (1)

【特許請求の範囲】[Claims] (1)筒状のノズル本体を外筒に挿通し、該外筒とノズ
ル本体の外周面との間に密閉された高圧水室を形成する
と共に、前記ノズル本体の内周面に螺旋溝を形成し、該
螺旋溝と高圧水室に開口する水噴射孔を前記ノズル本体
に螺旋溝に沿って多数穿設したことを特徴とする生コン
クリート等添加材吹付ノズル。
(1) A cylindrical nozzle body is inserted into an outer cylinder, a sealed high-pressure water chamber is formed between the outer cylinder and the outer circumference of the nozzle body, and a spiral groove is formed on the inner circumference of the nozzle body. A nozzle for spraying additives such as ready-mixed concrete, characterized in that a number of water injection holes opening into the spiral groove and the high-pressure water chamber are bored in the nozzle body along the spiral groove.
JP5493990A 1990-03-08 1990-03-08 Nozzle for spraying additive such as ready-mixed concrete Expired - Lifetime JP2579022B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5493990A JP2579022B2 (en) 1990-03-08 1990-03-08 Nozzle for spraying additive such as ready-mixed concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5493990A JP2579022B2 (en) 1990-03-08 1990-03-08 Nozzle for spraying additive such as ready-mixed concrete

Publications (2)

Publication Number Publication Date
JPH03257259A true JPH03257259A (en) 1991-11-15
JP2579022B2 JP2579022B2 (en) 1997-02-05

Family

ID=12984611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5493990A Expired - Lifetime JP2579022B2 (en) 1990-03-08 1990-03-08 Nozzle for spraying additive such as ready-mixed concrete

Country Status (1)

Country Link
JP (1) JP2579022B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040013896A (en) * 2002-08-09 2004-02-14 전신구 Nozzle for mixing air
CN109881893A (en) * 2019-03-08 2019-06-14 中国铁建重工集团有限公司 A kind of nozzle for wet shot trolley
CN115350826A (en) * 2022-08-22 2022-11-18 中国铁建重工集团股份有限公司 Rotary spraying device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040013896A (en) * 2002-08-09 2004-02-14 전신구 Nozzle for mixing air
CN109881893A (en) * 2019-03-08 2019-06-14 中国铁建重工集团有限公司 A kind of nozzle for wet shot trolley
CN115350826A (en) * 2022-08-22 2022-11-18 中国铁建重工集团股份有限公司 Rotary spraying device

Also Published As

Publication number Publication date
JP2579022B2 (en) 1997-02-05

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