JPH0243602B2 - - Google Patents
Info
- Publication number
- JPH0243602B2 JPH0243602B2 JP57196073A JP19607382A JPH0243602B2 JP H0243602 B2 JPH0243602 B2 JP H0243602B2 JP 57196073 A JP57196073 A JP 57196073A JP 19607382 A JP19607382 A JP 19607382A JP H0243602 B2 JPH0243602 B2 JP H0243602B2
- Authority
- JP
- Japan
- Prior art keywords
- kneading
- stirring
- kneaded
- mixer
- revolving
- 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 - Lifetime
Links
- 238000004898 kneading Methods 0.000 claims description 72
- 238000003756 stirring Methods 0.000 claims description 35
- 230000007246 mechanism Effects 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000004568 cement Substances 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 4
- 238000007790 scraping Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Landscapes
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Description
【発明の詳細な説明】
本発明は水硬性物質混練物の調整法に係り、能
率的に該混練物を混練調整すると共に品質的に優
れしかもバラツキの少ない混練物を調整すること
のできる方法を提供しようとするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for preparing a kneaded product of a hydraulic material, and provides a method that can efficiently knead and adjust the kneaded product and also prepare a kneaded product that is excellent in quality and has little variation. This is what we are trying to provide.
セメント等の水硬性物質粉末を用い砂、砂利の
ような骨材を添加混練して混練物を得ることは従
来から一般的に実施されているところであるが、
斯かる混練物を能率的且つ効果的に得ることは必
ずしも容易でない。特に本発明者等は砂のような
細骨材に予め所定の水分を均一状態に附着せしめ
たものにセメント等の水硬性物質粉末を添加混合
せしめることにより細骨材表面に造殻せしめたも
のに残部混練水と粗骨材を添加混練することを推
奨するものであつて、このようにすることにより
該混練物の分離ブリージングを皆無かないし充分
に低減し、流動成形性を良好にすると共に得られ
る成形体の強度を適切に向上し、比較的少いセメ
ント等の配合で所期強度をもつた製品を得しめる
メリツトがあり、斯様な技術については種々の提
案を重ねて来たところであるが、このような混練
手法を有効且つ能率的に得ることは実施的に相当
の困難性がある。即ち上記のような混練調整は、
それぞれのステツプに相当の時間をかけて実施し
得ることは当然であるが、それでは今日における
量産方式に必ずしもマツチせず、又混練エネルギ
ー的にも不利である。勿論混練調整が均一状態に
得られることは不可欠的であつて、セメント等の
凝塊が残つているようなことでは折角の前記造殻
技術の特質を充分に発揮し得ないことになる。又
混練機構はなるべく小型であることが運転効率上
有利であることは当然であり、しかも一方におい
ては該混練操作に当つて材料の飛散がないこと、
混練トルクの少いこと、材料組成的にも異つた細
骨材に対する造殻のための第１次混練と、その後
の粗骨材を添加したコンクリートとして仕上げる
第２次混練とが夫々に効率的に行い得ることなど
の要請があり、これらの諸要請を夫々満足せしめ
ることは当然に困難性を伴う。 It has been common practice to obtain a kneaded product by adding and kneading aggregates such as sand and gravel using powdered hydraulic substances such as cement.
It is not always easy to obtain such a kneaded product efficiently and effectively. In particular, the present inventors have created a shell on the surface of fine aggregate by adding and mixing powder of a hydraulic substance such as cement to fine aggregate such as sand, which has been uniformly coated with a predetermined amount of moisture in advance. It is recommended that the remainder of the mixing water and coarse aggregate be added and kneaded, and by doing so, the separation breathing of the kneaded product can be completely eliminated or sufficiently reduced, and the fluidity and formability can be improved. It has the advantage of appropriately improving the strength of the resulting molded product and producing a product with the desired strength with a relatively small amount of cement, etc., and various proposals have been made regarding such technology. However, it is quite difficult to effectively and efficiently obtain such a kneading method. In other words, the above-mentioned kneading adjustment is
It is natural that each step can take a considerable amount of time to carry out, but this is not necessarily compatible with today's mass production methods and is also disadvantageous in terms of kneading energy. Of course, it is essential that the kneading and adjustment be achieved in a uniform state, and if any coagulum of cement or the like remains, the characteristics of the above-mentioned shell-forming technology cannot be fully demonstrated. In addition, it is natural that the kneading mechanism is as small as possible, which is advantageous in terms of operational efficiency, and on the other hand, there is no scattering of materials during the kneading operation.
The low kneading torque makes the primary kneading for shelling fine aggregate, which has a different material composition, and the subsequent secondary kneading for finishing concrete with coarse aggregate added, both efficient. There are demands such as what can be done in the future, and it is naturally difficult to satisfy each of these demands.
本発明は上記したような実情に鑑み検討を重ね
て創案されたものであつて、前記したような造殻
のための１次混練とその後の２次混練とを各別の
ミキサーで行い、しかも前記１次混練を公転する
アームに自転すると共に分散効果を有する撹拌ロ
ータを対設し、しかも前記アームに混合室壁面に
対し掻取り操作する回転片を配設した混練機構で
行い、この１次混練後に別の水平２軸混練機構に
移して２次混練することを提案するものである。
斯かる本発明について説明すると、本発明者等は
前記したような１次混練をなすための混練機構お
よび該１次混練機構と２次混練機構との組合わせ
関係について検討したが、１次混練については単
純な回転撹拌によるものよりも公転と自転を組合
わせ、公転するアームに混練室壁面に対し附着し
た混練物を掻取る外側撹拌片と混練室中央部の内
側撹拌片とを取付け、しかも該公転アームに取付
けられて自転する撹拌ロータで撹拌することが比
較的駆動動力の少い条件下で有効な撹拌混練効果
を得しめる所以であることを確認し、特に前記撹
拌ロータの複数個を対称的に配設したものが好ま
しい結果を得しめる所以であることを知つた。こ
の間の事情について説明するとこの種の撹拌混練
に用いられる機構としては従来頗る多様なものが
開発発表されていることは一般的に知られている
通りであるが、前記したようなセメント等の水硬
性物質粉体を用いた混練物の混合調整に当つては
該水硬性物質粉体ないし細骨材が混練室壁面にお
いて附着凝結する傾向が大であり、これを適切に
掻取つて撹拌することが必要であり、しかも掻取
り撹拌とは別にロータによる撹拌操作を加えて複
合した撹拌作用を与えることが比較的少い駆動力
で好ましい撹拌混合を得しめる所以であつて、上
記したように公転アームに設けられた撹拌片は混
練物の全般に対する撹拌作用をなすと共に前記し
たような掻取り作用をなすものであり、一方自転
するロータはこのような全般的な撹拌、掻取り条
件下において部分的に撹拌作用を与えつつ公転に
よつて撹拌位置を移動することとなり、それらの
撹拌作用が総合されて好ましい撹拌結果を得しめ
る。しかも前記したような撹拌片ないし自転ロー
タは比較的小型なものでよいからそれらが混練室
内の混練物中にあつて回転されるための駆動力は
比較的小さいものでよい。 The present invention has been devised after repeated studies in view of the above-mentioned circumstances, and is characterized in that the primary kneading and subsequent secondary kneading for forming shells as described above are performed using separate mixers. The primary kneading is performed by a kneading mechanism in which a rotating arm is provided with a stirring rotor that rotates on its own axis and has a dispersion effect, and a rotating piece that scrapes the wall surface of the mixing chamber is provided in the arm. It is proposed that after kneading, the mixture be transferred to another horizontal twin-screw kneading mechanism for secondary kneading.
To explain the present invention, the present inventors have studied the kneading mechanism for performing the above-mentioned primary kneading and the combination relationship between the primary kneading mechanism and the secondary kneading mechanism. This method combines revolution and rotation rather than simple rotational stirring, and the revolving arm is equipped with an outer stirring piece for scraping off the kneaded material adhering to the wall surface of the kneading chamber, and an inner stirring piece in the center of the mixing chamber. It was confirmed that stirring using a rotating stirring rotor attached to the revolving arm is the reason why an effective stirring and kneading effect can be obtained under relatively low driving power conditions, and in particular, it was I learned that symmetrical arrangement is the reason for obtaining favorable results. To explain the situation during this time, it is generally known that a wide variety of mechanisms have been developed and announced as mechanisms used for this type of stirring and kneading. When adjusting the mixing of a kneaded product using hard material powder, there is a strong tendency for the hydraulic material powder or fine aggregate to adhere to and coagulate on the wall surface of the kneading chamber, so this should be appropriately scraped off and stirred. Moreover, adding a stirring operation using a rotor in addition to scraping stirring to provide a combined stirring action is the reason why preferable stirring and mixing can be achieved with relatively little driving force. The stirring piece provided on the arm performs the general stirring action on the kneaded material as well as the above-mentioned scraping action, while the rotor, which rotates on its own axis, performs the scraping action as described above under such general stirring and scraping conditions. The stirring position is moved by revolution while giving a stirring action, and these stirring actions are combined to obtain a preferable stirring result. In addition, since the above-mentioned stirring pieces or rotors can be relatively small, the driving force for rotating them in the kneaded material in the kneading chamber can be relatively small.
上記のような造殻のための第１次混練に対し、
粗骨材をも添加して行う第２次混練は混練物の量
がそれなりに大量となると共に添加された粗骨材
などにより混練物の質量が大となり撹拌混練時の
抵抗も大となるから別の混練機構によることが好
ましい。特にこの第２次混練においては第１次混
練における如き砂のような細骨材表面へのセメン
ト粉の均一な附着造殻という精度の高い混練処理
を必要とせず、第１次混練によつてそれらの関係
が完成された後のものに対する混練操作であるか
らそれが行われる混練機構に関しては２軸水平ミ
キサーを用いることが混練効果を高めて品質特性
の優れた混練物を得しめ、常にばらつきの少ない
状態を形成し得るものであることを確認し、合理
的に目的の混練物を得ることができる。 For the primary kneading for shell building as described above,
In the secondary kneading, which is performed by adding coarse aggregate, the amount of the kneaded material becomes relatively large, and the mass of the kneaded material becomes large due to the added coarse aggregate, which increases the resistance during stirring and kneading. Preferably, a separate kneading mechanism is used. In particular, this secondary mixing does not require the highly precise mixing process of uniformly adhering cement powder to the surface of fine aggregate such as sand and forming shells, as in the primary mixing. Since the kneading operation is performed on the product after those relationships have been completed, it is recommended to use a two-shaft horizontal mixer for the kneading mechanism that is used to improve the kneading effect and obtain a kneaded product with excellent quality characteristics. It is confirmed that a state with a small amount of
このような本発明について更に仔細を説明する
と、前記したような１次混練と２次混練とを一連
に実施する機構の１つは第１図において側面的に
示す通りで、上部の１次混練室１で混連されたも
のが、そのホツパー１０から一側下部に設けられ
た２次混練室２に供給されて２次混練されるもの
であり、１次混練室１の平面的な構成関係は別に
第２図において示されている。即ち混練室１には
公転するアーム１１が設けられ、該アーム１１の
両端には自転するロータ１２が取付けられている
が、又このようなアーム１１の中心回転軸１３側
には混練物は外側方向に送り出しつつ撹拌する内
側公転撹拌片１４が対設され、更にその外側部に
は適当な取付部材１６によつて混練室１の側壁面
を掻取りながら撹拌作用する外側公転撹拌片１５
が対設されている。前記ロータ１２には自転撹拌
片１２ａが設けられていることは図示の通りであ
るが、該ロータ１２は前述したような内外側の各
公転撹拌片１４，１５によつて混練掻出される混
練物に対して公転によりその撹拌位置を順次に移
動しながら自転撹拌作用を与えることは明らかで
ある。なお場合によつてはアーム１１に側壁面掻
取りを主体とした掻取片１７を設けることができ
る。 To explain the present invention in more detail, one of the mechanisms for performing the above-mentioned primary kneading and secondary kneading in series is as shown from the side in FIG. The materials kneaded in the chamber 1 are supplied from the hopper 10 to the secondary kneading chamber 2 provided at the lower part of one side for secondary kneading. is shown separately in FIG. That is, the kneading chamber 1 is provided with an arm 11 that revolves, and a rotor 12 that rotates on its own axis is attached to both ends of the arm 11, and the kneaded material is placed on the side of the central rotating shaft 13 of the arm 11. An inner revolving stirring piece 14 that stirs while being sent out in the direction is provided oppositely, and an outer revolving stirring piece 15 that stirs while scraping the side wall surface of the kneading chamber 1 is provided on the outer side thereof with a suitable mounting member 16.
are set up opposite each other. As shown in the figure, the rotor 12 is provided with an autorotating stirring piece 12a, and the rotor 12 is used to mix and scrape the kneaded material by the inner and outer revolving stirring pieces 14 and 15 as described above. It is clear that the rotating stirring action is applied to the stirring position while sequentially moving the stirring position by revolution. In some cases, the arm 11 may be provided with a scraping piece 17 mainly for scraping the side wall surface.
上記した第１図のものにおける２次混練室２は
水平２軸ミキサーであつて、水平２軸２１，２１
に設けられた撹拌手段によつて混練するものであ
る。即ち本発明者等は斯かる２次混練に関して各
混練機構の組合わせを別に第３図に示すような各
種のミキサーについて仔細を検討した。つまり砂
のような細骨材貯槽３、セメント貯槽４および１
次水５に関して夫々定量供給機構８を介して前記
したような１次混練室１が連結され、該１次混練
室１に対して水平２軸ミキサー２を連結し、該ミ
キサー２には別に設けられた砂利のような粗骨材
貯槽６および２次水７が夫々定量供給機構８ａ，
８ａを介して装入され混練するように成つている
のが前記第１図の本発明の場合であるが、これと
は別に第３図におけるタービンミキサー２３に前
記水平２軸ミキサー２と同様に装入して混練せし
め、又一般的に知られているコンクリートミキサ
ー２４、トラツクミキサー２５、第２図に示した
ものと同様な構成をもつた公転自転ミキサー２６
を連結し、これらのミキサー２３〜２６に対して
も適宜混和剤タンク３０からの混和剤を添加し同
様に装入して２次混練せしめ、得られる混練物１
０について検討した。 The secondary kneading chamber 2 in the one shown in FIG.
The mixture is kneaded by a stirring means provided in the. That is, the present inventors have studied the details of various mixers as shown in FIG. 3, separately considering the combination of each kneading mechanism for such secondary kneading. In other words, fine aggregate storage tank 3 such as sand, cement storage tank 4 and 1
The above-mentioned primary kneading chamber 1 is connected to the secondary water 5 through a quantitative supply mechanism 8, and a horizontal twin-shaft mixer 2 is connected to the primary kneading chamber 1, and the mixer 2 is provided with a separate A coarse aggregate storage tank 6 such as gravel and secondary water 7 are supplied to a fixed quantity supply mechanism 8a, respectively.
In the case of the present invention shown in FIG. 1, the mixer is charged through the mixer 8a and kneaded, but apart from this, the turbine mixer 23 in FIG. A generally known concrete mixer 24, a truck mixer 25, and a revolution-rotation mixer 26 having a configuration similar to that shown in FIG.
are connected, and the admixture from the admixture tank 30 is appropriately added to these mixers 23 to 26 and charged in the same manner for secondary kneading, resulting in a kneaded product 1.
We considered 0.
蓋し、これらの混練機構によつて具体的に得ら
れた混練物の代表例について説明すると、普通ポ
ルトランドセメントと相模川産出の川砂（FM：
3.01、吸水率：3.12％、比重：2.60のものを表面
水率５％程度としたもの）および大井川産出の40
mm以下である川砂利（FM：6.55、吸水率：0.74
％、比重：2.64）を用い、水セメント比（Ｗ／
Ｃ）が61％で、砂粗骨材比（Ｓ／ａ）を45％とし
た配合に従い、水平２軸ミキサーで従来法に従
い全材料を同時に装入混練したもの強制型パン
タイプミキサーで前記と同じに全材料を１時に
添加して混練したもの、本発明に従い公転自転
によるミキサー１で細骨材に１次水を添加して15
秒間混合してセメントを加えて50秒間撹拌混合す
る造殻１次混練をなし、次いでこれを水平２軸ミ
キサー２における粗骨材に添加して15秒間混合し
てから２次水を添加して50秒間混練したもの、
水平２軸ミキサーのみで１次混練と２次混練を65
秒宛行つたもの、上記と同じに公転自転ミキ
サーによる造殻１次混練後トラツクミキサー２５
で２次混練したもの、公転自転ミキサーによる
造殻１次混練後に傾動ミキサー２１で２次混練し
たもの、公転自転ミキサーによる造殻１次混練
後強制型パンタイプミキサー２６で上記と同じに
２次混練したものの７種類について、ブリージン
グ率および材令７日強度、28日強度をそれぞれ測
定した結果を要約して示すと第４図の通りであ
る。即ち本発明によるのものは〜のものに
比しブリージング率が0.8％以下と相当に低下し
ていると共に圧縮強度は何れも向上し、特に４周
強度が290℃／cm2程度で頗る高く、しかもそのバ
ラツキ範囲は±10〜20Kg／cm2と大幅に縮減してい
る。以上説明したような本発明によるときは砂の
ような細骨材の周面に水硬性物質粉末により造殻
された混練物を適切且つ能率的に混練調整せし
め、又比較的少い動力条件で該混練物を有利に得
しめ、しかも品質的に優れ、ばらつきの少ない混
練物を的確に提供し得るものであつて、工業的に
その効果の大きい発明である。 To close the lid and explain typical examples of kneaded products concretely obtained by these kneading mechanisms, ordinary Portland cement and river sand from Sagami River (FM:
3.01, water absorption rate: 3.12%, specific gravity: 2.60 with a surface water content of about 5%) and 40 from the Oigawa River.
River gravel (FM: 6.55, water absorption rate: 0.74) that is less than mm
%, specific gravity: 2.64), and the water-cement ratio (W/
C) was 61% and the sand/coarse aggregate ratio (S/a) was 45%, and all materials were charged and kneaded at the same time using a horizontal twin-shaft mixer according to the conventional method. In the same way, all the ingredients were added at 1:00 and mixed, and according to the present invention, primary water was added to the fine aggregate using the mixer 1 that revolves and rotates.
After mixing for a few seconds, cement is added and the mixture is stirred and mixed for 50 seconds to perform the primary kneading of the shell, and then this is added to the coarse aggregate in the horizontal twin-shaft mixer 2, mixed for 15 seconds, and then secondary water is added. Kneaded for 50 seconds,
65 primary and secondary kneading using only horizontal 2-shaft mixer
After the first kneading process using the revolving mixer as above, the track mixer 25
After the primary kneading of the shell by the revolving-rotating mixer, the secondary kneading was performed by the tilting mixer 21. After the primary kneading of the shell by the revolving-rotating mixer, the secondary kneading was performed by the forced pan-type mixer 26 in the same manner as above. Figure 4 summarizes the results of measuring the breathing rate, 7-day strength, and 28-day strength of the seven types of kneaded materials. That is, the material according to the present invention has a considerably lower breathing rate of 0.8% or less than the material of ~, and its compressive strength has improved in both cases, and in particular, the four-circumferential strength is extremely high at about 290 °C/cm2, Moreover, the variation range has been significantly reduced to ±10 to 20 kg/cm 2 . According to the present invention as explained above, the kneaded material formed into a shell by the hydraulic substance powder on the peripheral surface of fine aggregate such as sand can be kneaded and adjusted appropriately and efficiently, and also with relatively low power conditions. This invention is capable of advantageously obtaining the kneaded product, and can accurately provide the kneaded product with excellent quality and little variation, and is industrially highly effective.
図面は本発明の技術的内容を示すものであつ
て、第１図は本発明方法を実施する装置の１例に
ついての側面図、第２図はその１次混練機構につ
いての平面図、第３図は本発明による１次混練機
構と２次混練機構の組合わせ関係を比較例と共に
示した説明図、第４図は従来一般法と１次造殻混
練と２次混練を比較例および本発明の混練機構の
組合わせで実施した場合のブリージング率及び材
令強度についての測定結果を示した図表である。
然してこれらの図面において、１は１次混練機
構、２は２次混練機構、３は細骨材貯槽、４はセ
メント貯槽、５は１次水及び混和剤、６は粗骨材
貯槽、７は２次水及び混和剤、８，８ａは定量供
給機構、１０は混練物、１１はアーム、１２は自
転するロータ、１４は内側公転撹拌片、１５は外
側公転撹拌片、２１は傾動ミキサー、２３はター
ビンミキサー、２４はコンクリートミキサー、２
５はトラツクミキサーを示すものである。
The drawings show the technical contents of the present invention, and FIG. 1 is a side view of an example of an apparatus for carrying out the method of the present invention, FIG. 2 is a plan view of the primary kneading mechanism, and FIG. The figure is an explanatory diagram showing the combination relationship of the primary kneading mechanism and the secondary kneading mechanism according to the present invention together with a comparative example. Fig. 4 is an explanatory diagram showing the combination relationship of the primary kneading mechanism and the secondary kneading mechanism according to the present invention, and Fig. 4 shows the conventional general method, primary shelling kneading, and secondary kneading with a comparative example and the present invention. 2 is a chart showing the measurement results of the breathing rate and the aging strength when carried out using the combination of kneading mechanisms. In these drawings, 1 is a primary kneading mechanism, 2 is a secondary kneading mechanism, 3 is a fine aggregate storage tank, 4 is a cement storage tank, 5 is a primary water and admixture, 6 is a coarse aggregate storage tank, and 7 is a coarse aggregate storage tank. Secondary water and admixture, 8 and 8a are quantitative supply mechanism, 10 is a kneaded material, 11 is an arm, 12 is an autorotating rotor, 14 is an inner revolving stirring piece, 15 is an outer revolving stirring piece, 21 is a tilting mixer, 23 is a turbine mixer, 24 is a concrete mixer, 2
5 indicates a track mixer.
Claims (1)
態に附着せしめたものにセメント等の水硬性物質
を添加混合せしめることにより細骨材表面に造殻
せしめる１次混練を行い、この１次混練物に残部
の混練水と粗骨材を添加して２次混練し、目的の
混練物を得るに当つて、前記１次混練を混練室内
の公転アームに公転内側撹拌片と公転外側撹拌片
を取付けると共に自転ロータを配設した混練機構
で行うと共に前記２次混練を別の水平２軸ミキサ
ーにより行うことを特徴とする水硬性物質混練物
の混練調整法。1. First kneading is performed to form a shell on the surface of the fine aggregate by adding and mixing a hydraulic substance such as cement to fine aggregate such as sand, which is uniformly coated with a predetermined amount of water. Next, the remaining kneading water and coarse aggregate are added to the kneaded product for secondary kneading to obtain the desired kneaded product.The above primary kneading is carried out using a revolving arm inside the kneading chamber with a revolving inner stirring piece and a revolving outer stirring piece. A method for kneading and adjusting a hydraulic material kneaded material, characterized in that the kneading mechanism is performed with a kneading mechanism equipped with a piece and a rotating rotor, and the secondary kneading is performed with another horizontal twin-shaft mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19607382A JPS5985710A (en) | 1982-11-10 | 1982-11-10 | Method of kneading and preparing hydraulic substance kneadedmaterial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19607382A JPS5985710A (en) | 1982-11-10 | 1982-11-10 | Method of kneading and preparing hydraulic substance kneadedmaterial |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5985710A JPS5985710A (en) | 1984-05-17 |
| JPH0243602B2 true JPH0243602B2 (en) | 1990-10-01 |
Family
ID=16351747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19607382A Granted JPS5985710A (en) | 1982-11-10 | 1982-11-10 | Method of kneading and preparing hydraulic substance kneadedmaterial |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5985710A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2574599B2 (en) * | 1992-07-02 | 1997-01-22 | 松下電器産業株式会社 | Scroll compressor |
| KR20010004517A (en) * | 1999-06-29 | 2001-01-15 | 진찬호 | Concrete mixer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165209A (en) * | 1981-04-03 | 1982-10-12 | Kitagawa Iron Works Co | Device for manufacturing green concrete, etc. |
| JPS57191008A (en) * | 1981-05-22 | 1982-11-24 | Kitagawa Iron Works Co | Manufacture of concrete not hardened by mixer |
-
1982
- 1982-11-10 JP JP19607382A patent/JPS5985710A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165209A (en) * | 1981-04-03 | 1982-10-12 | Kitagawa Iron Works Co | Device for manufacturing green concrete, etc. |
| JPS57191008A (en) * | 1981-05-22 | 1982-11-24 | Kitagawa Iron Works Co | Manufacture of concrete not hardened by mixer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5985710A (en) | 1984-05-17 |
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