JPH02171213A - Automatic water content measuring and correcting device of aggregate - Google Patents
Automatic water content measuring and correcting device of aggregateInfo
- Publication number
- JPH02171213A JPH02171213A JP32701988A JP32701988A JPH02171213A JP H02171213 A JPH02171213 A JP H02171213A JP 32701988 A JP32701988 A JP 32701988A JP 32701988 A JP32701988 A JP 32701988A JP H02171213 A JPH02171213 A JP H02171213A
- Authority
- JP
- Japan
- Prior art keywords
- aggregate
- water
- gravel
- sand
- measuring
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000004576 sand Substances 0.000 claims abstract description 22
- 238000005070 sampling Methods 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims description 22
- 238000005303 weighing Methods 0.000 claims description 12
- 238000012937 correction Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000010365 information processing Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は生コンクリ−！・プラントにおける骨材自動水
分測定補正装置に関するものである。[Detailed Description of the Invention] "Industrial Application Field" The present invention is directed to ready-mixed concrete!・Related to automatic aggregate moisture measurement and correction equipment in plants.
「従来の技術」
従来、生コンクリートプラントでは砂利や砂等の骨材に
は水分を含有し、水分含有骨材の重量を計量ホッパーで
計量するため、水φセメント・骨材比に誤差を生じる。``Conventional technology'' Conventionally, in ready-mixed concrete plants, aggregates such as gravel and sand contain moisture, and the weight of the moisture-containing aggregates is measured using a weighing hopper, resulting in an error in the ratio of water to cement to aggregate. .
そのため骨材貯槽から計量ホッパーに落下する骨材を採
取してｒＪＩＳ細骨材の表面水車試験方法Ｊ （ＪＩ
ＳＡＩＩＩＩ）、ｒＪＩｓ粗骨材の比重及び吸水率試験
方法Ｊ （ＪＩＳＡＩＩＩＯ）によって水分を測定し
、或は骨打設槽内にセンサーを挿入して電気的に換算し
て水分を１．１１定する方法等が実施されている。しか
し上記第１及び第２の測定方法では骨材計量ホッパーに
よって計量する骨材の水分をリャルタイムに測定するこ
とは困難であるし、上記第３の方法では精度に問題があ
って目安として使用されているに過ぎない。Therefore, the aggregate that falls from the aggregate storage tank to the weighing hopper is collected and rJIS Fine Aggregate Surface Water Turbine Test Method J (JI
SAIII), rJIs Coarse aggregate specific gravity and water absorption test method J (JISAIIIO), or insert a sensor into the bone casting tank and convert it electrically to determine the moisture content as 1.11. methods etc. are being implemented. However, with the first and second measurement methods described above, it is difficult to measure the moisture content of the aggregate weighed by the aggregate weighing hopper in real time, and with the third method described above, there is a problem with accuracy and it cannot be used as a guide. It's just that.
「発明が解決しようとする問題点」
本発明は砂利や砂の貯槽から骨材計量ホッパーに投入さ
れ該ホッパーの設定値内の水分をリャルタイムに検出し
、該骨材に混合する水分量をリャルタイムに制御し１次
工程のミキサーに骨材・水分比を精度よく４昆合するこ
とを目的とするものである。"Problems to be Solved by the Invention" The present invention detects in real time the amount of moisture that is fed into an aggregate measuring hopper from a gravel or sand storage tank and within the set value of the hopper, and calculates in real time the amount of moisture to be mixed with the aggregate. The purpose of this is to precisely control the aggregate/moisture ratio in the mixer of the primary process.
ｒ問題点を解決するための手段」
上記の目的を達成するため本発明は砂利貯槽及び砂貯槽
の下端開口部にそれぞれ投入ゲートを設け、これらの投
入ゲートの下方にそれぞれ骨材計量ホッパーを配設し、
かつ給水用自動弁を備えた給水口の下方に水計量ホッパ
ーを配設してなる生コンクリートプラントにおいて、上
記投入ゲートと骨材計量ホッパーとの間に出入可能なサ
ンプリング装置を設け、該装置に非接触水分センサーを
配設し、投入ゲートから骨材計量ホッパーへの投入開始
（計量開始）と同時に、サンプリング装置により投入中
の骨材をサンプリングし、サンプリングした骨材を、該
センサーにより水分を測定しこの測定信号により、砂利
、砂、水の設定値を演算し直し投入中の砂利、砂、水の
計量値を補正制御する処理装置をけてなる骨材自動水分
測定補正装置を特定発明とし、
計量値が次回の計量値である上記発明の骨材自動水分測
定補正装置
サンプリング装置が機枠に設けた往復装置に資料受皿が
設けられ、該受皿の上面均板と該受皿の反転装置が設け
られてなるものである上記発明記載の骨材自動水分測定
補正装置によって構成される。In order to achieve the above object, the present invention provides charging gates at the bottom openings of the gravel storage tank and the sand storage tank, and arranges aggregate measuring hoppers below these charging gates. established,
In a ready-mixed concrete plant in which a water measuring hopper is arranged below a water supply inlet equipped with an automatic water supply valve, a sampling device that can be accessed and removed between the input gate and the aggregate measuring hopper is provided, and A non-contact moisture sensor is installed, and at the same time as the input gate starts to charge the aggregate into the aggregate weighing hopper (weighing starts), the sampling device samples the aggregate being input, and the sensor removes moisture from the sampled aggregate. Specified invention of an automatic aggregate moisture measurement and correction device that uses a processing device that measures and recalculates the set values of gravel, sand, and water based on the measurement signals and corrects and controls the measured values of gravel, sand, and water that are being added. The automatic aggregate moisture measurement and correction device sampling device of the above invention, whose measured value is the next measured value, is provided with a reciprocating device on the machine frame, and is provided with a document tray, and an upper surface leveling plate of the tray and a reversing device for the tray. The automatic aggregate moisture measurement and correction apparatus according to the invention described above is provided with.
「作用」
従って砂利貯槽１０に砂利を、砂貯槽１１に砂を収容し
、骨材計量ホッパー２，２をそれぞれ砂利及び砂の設定
量に設定する。又水計量ホッパー８を設定層に設定し、
投入ゲート１．１を開いて上記貯槽１０．１１から砂利
及び砂を骨材計量ホッパー２．２に投入し、かつ自動弁
１２を開いて水計量ホッパー８に水を収容する。投入さ
れる砂利及び砂は投入ゲート１と骨材計量ホッパー２間
に移動した資料受皿１５内に充満し、該ホッパー２の外
側に向って移動する際上面均板１６によって上面が水平
に均され、その後非接触水分センサー４によって受皿１
５内の砂利又は砂などの骨材の含有水分（耐着水分）が
計測され水分測定信号５が発せられる。水分測定信号５
は演算処理装置７．９にて処理し投入時又は次回投入時
の砂利、砂、水の設定値を決定し、決定信号１８によっ
て自動弁１２を閉鎖し、その状態で骨材計量ホッパー２
．２のゲーｈ１９．１９及び水計量ホッパー８の電磁弁
２０を同時に開き上記砂利、砂及び水を次工程のミキサ
ーに同時に投入する。"Operation" Therefore, gravel is stored in the gravel storage tank 10, sand is stored in the sand storage tank 11, and the aggregate measuring hoppers 2, 2 are set to the set amounts of gravel and sand, respectively. Also, set the water measuring hopper 8 to the setting layer,
The input gate 1.1 is opened to input gravel and sand from the storage tank 10.11 into the aggregate metering hopper 2.2, and the automatic valve 12 is opened to store water in the water metering hopper 8. The input gravel and sand fill the material tray 15 moved between the input gate 1 and the aggregate weighing hopper 2, and as they move toward the outside of the hopper 2, the upper surface is leveled horizontally by the upper surface leveling plate 16. , then the non-contact moisture sensor 4 detects the saucer 1.
The moisture content (adhesive moisture resistance) of aggregates such as gravel or sand in 5 is measured, and a moisture measurement signal 5 is generated. Moisture measurement signal 5
is processed by the arithmetic processing unit 7.9 to determine the setting values for gravel, sand, and water at the time of charging or the next time, and the automatic valve 12 is closed by the decision signal 18, and in this state, the aggregate measuring hopper 2 is closed.
．． 2 game h19.19 and the electromagnetic valve 20 of the water measuring hopper 8 are simultaneously opened to simultaneously charge the gravel, sand and water into the mixer for the next process.
非接触水分センサー４による受皿１５内骨材の水分検出
後は該受皿１５は何れかの計量ホッパー２上で反転装置
１７によって上下反転し受皿１５内の骨材は何れか一方
の計量ホッパー２内に投入される。After the non-contact moisture sensor 4 detects the moisture in the aggregate in the tray 15, the tray 15 is turned upside down by the reversing device 17 on one of the weighing hoppers 2, and the aggregate in the tray 15 is transferred to one of the weighing hoppers 2. will be put into the
「実施例」
機枠１３に砂利貯槽１０及び砂貯槽１１を設け、下端開
口部１０′、１１′にそれぞれシリンダー２１によって
動作する投入ゲート１、ｌを設ける。これらの投入ゲー
トｌ、１の下方にはそれぞれ骨材計量ホッパー２．２を
配設するものである。又タンク２２に電磁自動弁１２を
介在した給水管２３が設けられ、給水管の下端給水口２
４の下方に水計量ホッパー８を配設する。骨材計量ホッ
パー２．２の下端開口部にはシリンダー２５によって動
作する開閉ゲート１９を設け、水計量ホッパー８の下端
流出管には電磁弁２０を設けるものであって、上記骨材
及び水計量ホッパー２．２．８はロードセル（電子はか
り）に支持されているもので、生コンクリートの骨材及
び水計量プラントが形成される。上記投入ゲートｌと骨
材計量ホッパー２との中間には該中間に出入可能なサン
プリング装置３を設け、該装置３には採取した骨材資料
の非接触水分センサー４を設け、該センサー４と中央情
報処理装置９とを水分測定信号５用の光ファイバーによ
って接続するもので、該情報処理装置９は上記ロードセ
ル、シリンダー２１．２５、電磁自動弁１２．２０及び
往復装置１４と信号６．１８．２６．２７．２８用の信
号線で接続し、該処理装置９よりの指令によって投入ゲ
ートｌ、電磁自動弁１２．２０．往復装置１４、開閉ゲ
ー）１９が動作するものである。サンプリング装置３は
機枠１３に設けたロッドレスシリンダー１４′（第２図
）又は往復回動腕１４” （第５図）等による往復装置
１４に資料受皿１５がセレックスロータリーによる反転
装置１７を介して設けられ、かつ該受皿１５は第７図に
示すように上向及び下向受皿１５．１５が一体に設けら
れてなるものである。又ａ枠１３には上記受皿１５の上
面均板１６を設けるもので受皿１５上の山盛り資料を水
平に均らされた資料上面に上記センサー４を下向に対面
させる（第１図〜第２図（こその４大態を示す）、この
非接触水分センサー４Ｉこｌま光学式センサーが用いら
れる。即ち赤外線を受皿１５内の骨材に照射して水分を
測定するもので光学的な一定波長のスペクトル吸収率に
よって算出することができる。この外超音波による非接
触水分センサーであっても良い、そして該センサー４か
らの水分測定信号５及び骨材計量ホ、、、＜ ２．２
のロードセルからの重量測定信号６は上記情報処理装置
９内に設けた憤算装硲７によって演算されて骨材計量ホ
ー２パー２．２内に投入された骨材の水分含有Ｂｔｏｏ
Ｋ９、骨材型ｉ９０ Ｑ）Ｃ５のよう（こリャルタイム
に算出され、かつ水計量ホ・、、＜ Ｂ内の水量と比
較演算されその信号によって自動電磁弁１２の閉鎖時期
が制御され水計量ホツノぐ一８内の水量が調節され、Ｙ
ＥＳ信号によってシリンダー２５，２５及び電磁弁２０
が動作し開閉ゲート１９．１９及び該電磁弁２０が開き
、砂利、砂、水の比率が設定値のとおリリャルタイムに
制御された状態で次工程のミキサーに投入される動作が
繰返される。上記信号はアナログ又はデジタル信号が用
いられ中央情報処理装置９におｌ、％て何れ力）一方に
変換される。尚図中２９で示すものはサンプリング装置
３の指令信号線、３０は水計量ホッパーの計量信号線、
３１は表示装置、第７図中３２はアンプ又はインターフ
ェース、第５図中３３は往復回動輪、３４は往復駆動モ
ーターである。Embodiment A gravel storage tank 10 and a sand storage tank 11 are provided in a machine frame 13, and input gates 1 and 1 operated by cylinders 21 are provided in lower end openings 10' and 11', respectively. Aggregate measuring hoppers 2.2 are arranged below these input gates 1 and 1, respectively. In addition, a water supply pipe 23 with an automatic electromagnetic valve 12 interposed is provided in the tank 22, and a water supply port 2 at the lower end of the water supply pipe is provided.
A water measuring hopper 8 is disposed below 4. An opening/closing gate 19 operated by a cylinder 25 is provided at the opening at the lower end of the aggregate measuring hopper 2.2, and a solenoid valve 20 is provided at the lower end outlet pipe of the water measuring hopper 8. The hopper 2.2.8 is supported by a load cell (electronic scale) and forms the fresh concrete aggregate and water metering plant. A sampling device 3 is provided between the input gate 1 and the aggregate measuring hopper 2, and the sampling device 3 is provided with a non-contact moisture sensor 4 for the collected aggregate material. The information processing device 9 is connected to the central information processing device 9 by an optical fiber for the moisture measurement signal 5, and the information processing device 9 is connected to the load cell, the cylinder 21.25, the electromagnetic automatic valve 12.20, and the reciprocating device 14 and the signals 6.18. 26, 27, 28, and the input gate 1, electromagnetic automatic valve 12, 20. The reciprocating device 14 and opening/closing game 19 operate. The sampling device 3 includes a reciprocating device 14 using a rodless cylinder 14' (Fig. 2) or a reciprocating arm 14'' (Fig. 5) provided on the machine frame 13, and a reciprocating device 14 with a material receiving tray 15 connected to a reversing device 17 using a Selex rotary. The upper and lower trays 15.15 are integrally provided as shown in FIG. 16 is provided, and the sensor 4 faces downwardly to the top surface of the material that has been leveled horizontally on the saucer 15 (Figs. 1 to 2 (showing the four main situations)). Contact moisture sensor 4I An optical sensor is used.That is, the moisture content is measured by irradiating the aggregate in the saucer 15 with infrared rays, and the moisture content can be calculated based on the optical spectrum absorption rate of a certain wavelength. It may be a non-contact moisture sensor using external ultrasonic waves, and the moisture measurement signal 5 from the sensor 4 and the aggregate measurement ho...<2.2
The weight measurement signal 6 from the load cell is calculated by the calculation device 7 provided in the information processing device 9 and calculates the water content Btoo of the aggregate fed into the aggregate measuring hole 2.2.
K9, aggregate type i90 Q) As shown in C5 (calculated at this real time, and compared with the amount of water in the water measurement H... < B, the closing timing of the automatic solenoid valve 12 is controlled by the signal, The amount of water in the tank 8 is adjusted, and Y
The cylinders 25, 25 and the solenoid valve 20 are activated by the ES signal.
is operated, the opening/closing gate 19, 19 and the solenoid valve 20 are opened, and the operation of feeding gravel, sand, and water into the mixer for the next process is repeated with the ratio of gravel, sand, and water being controlled in real time at the set value. The above-mentioned signal is an analog or digital signal and is converted into one by the central information processing unit 9. Note that 29 in the figure is the command signal line of the sampling device 3, 30 is the measurement signal line of the water measurement hopper,
31 is a display device, 32 in FIG. 7 is an amplifier or an interface, 33 in FIG. 5 is a reciprocating rotating wheel, and 34 is a reciprocating drive motor.
「効果」
本発明は上述のように構成したので生コンクリドのバラ
チー−プラントにおいて、骨材計量ホッパー２．２内に
投入された骨材含有水分を精度よく把握し、リャルタイ
ムに骨材計量ホツノ＜−２及び水計量ホッパー８内に収
容される骨材及び水分を上記含有水分に対応して制御し
、骨材と水の混合比率を計量時点で補正し絶乾骨材と水
分との精密な比率がリャルタイムに得られる効果がある
。"Effects" Since the present invention is configured as described above, it is possible to accurately grasp the moisture content of the aggregate introduced into the aggregate measuring hopper 2.2 in the ready-mixed concrete Barachi plant, and to measure the aggregate in real time. -2 and water measuring hopper 8 are controlled in accordance with the above-mentioned water content, and the mixing ratio of aggregate and water is corrected at the time of measurement to ensure precise mixing of bone-dry aggregate and water. There is an effect that the ratio can be obtained in real time.
第１図は本発明の骨材自動水分測定補正装置をを示す説
明図、第２図はサンプリング装置の正面図、第３図は第
２図を右方から見た側面図、第４図は第３図の一部切欠
拡大図、第５図はサンプリング装置の他の実施例の平面
図、第６図、第７図及び第８図は処理装置の他の実施例
を示す説明図である。
■・・投入ゲート、２・・骨材計量ホッパー、３・・サ
ンプリング装は、４・・非接触水分センサー、５・・水
分ｌ１１１１Ｉ定信号、６・・重量測定信号、７・・演
算装置、８・・水計量ホッパー、９・・処理装置、１０
・・砂利貯槽、１１・・砂貯槽、１２・・自動弁、１３
・・機枠、１４・・往復装ｊη、１５・・資料受皿、１
６・・上面均板、１７・・反転装置。Figure 1 is an explanatory diagram showing the automatic aggregate moisture measurement and correction device of the present invention, Figure 2 is a front view of the sampling device, Figure 3 is a side view of Figure 2 seen from the right, and Figure 4 is FIG. 3 is a partially cutaway enlarged view, FIG. 5 is a plan view of another embodiment of the sampling device, and FIGS. 6, 7, and 8 are explanatory diagrams showing other embodiments of the processing device. . ■... Input gate, 2... Aggregate weighing hopper, 3... Sampling equipment, 4... Non-contact moisture sensor, 5... Moisture l1111I constant signal, 6... Weight measurement signal, 7... Arithmetic device, 8. Water measuring hopper, 9. Processing device, 10
...Gravel storage tank, 11...Sand storage tank, 12...Automatic valve, 13
・・Machine frame, 14・・Reciprocating mounting jη, 15・・Data tray, 1
6...Top surface leveling board, 17...Reversing device.
Claims (3)
ゲートを設け、これらの投入ゲートの下方にそれぞれ骨
材計量ホッパーを配設し、かつ給水用自動弁を備えた給
水口の下方に水計量ホッパーを配設してなる生コンクリ
ートプラントにおいて、上記投入ゲートと骨材計量ホッ
パーとの間に出入可能なサンプリング装置を設け、該装
置に非接触水分センサーを配設し、投入ゲートから骨材
計量ホッパーへの投入開始（計量開始）と同時に、サン
プリング装置により投入中の骨材をサンプリングし、サ
ンプリングした骨材を該センサーにより水分を測定しこ
の測定信号により、砂利、砂、水の設定値を演算し直し
投入中の砂利、砂、水の計量値を補正制御する処理装置
を設けてなる骨材自動水分測定補正装置。(1) A charging gate is provided at the lower end opening of the gravel storage tank and sand storage tank, an aggregate measuring hopper is installed below each of these charging gates, and a water supply port equipped with an automatic water supply valve is installed. In a ready-mixed concrete plant equipped with a weighing hopper, a sampling device that can be accessed and removed between the input gate and the aggregate weighing hopper is installed, a non-contact moisture sensor is installed in the device, and aggregates are collected from the input gate. Simultaneously with the start of feeding into the weighing hopper (start of measurement), the sampling device samples the aggregate being fed, the moisture content of the sampled aggregate is measured by the sensor, and this measurement signal determines the set values for gravel, sand, and water. This is an automatic aggregate moisture measurement and correction device that is equipped with a processing device that recalculates and corrects and controls the measured values of gravel, sand, and water that are being added.
骨材自動水分測定補正装置。(2) The automatic aggregate moisture measurement and correction device according to claim (1), wherein the measured value is the next measured value.
受皿が設けられ、該受皿の上面均板と該受皿の反転装置
が設けられてなるものである請求項（１）又は（２）記
載の骨材自動水分測定補正装置。(3) According to claim (1) or (2), the sampling device is a reciprocating device provided on the frame of the machine, which is provided with a document receiving tray, and is provided with a leveling plate on the upper surface of the receiving tray and a reversing device for the receiving tray. Automatic aggregate moisture measurement correction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63327019A JPH0763969B2 (en) | 1988-12-24 | 1988-12-24 | Aggregate automatic moisture measurement correction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63327019A JPH0763969B2 (en) | 1988-12-24 | 1988-12-24 | Aggregate automatic moisture measurement correction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02171213A true JPH02171213A (en) | 1990-07-02 |
| JPH0763969B2 JPH0763969B2 (en) | 1995-07-12 |
Family
ID=18194402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63327019A Expired - Lifetime JPH0763969B2 (en) | 1988-12-24 | 1988-12-24 | Aggregate automatic moisture measurement correction device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0763969B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02137206U (en) * | 1989-04-21 | 1990-11-15 | ||
| NL9302191A (en) * | 1993-12-15 | 1995-07-03 | Daanen B V Maschf | Method and apparatus for proportioning raw materials to make bricks |
| JP2002067025A (en) * | 2000-08-24 | 2002-03-05 | Kurihara:Kk | Concrete manufacturing method and hopper for storing aggregate |
| US7284898B2 (en) | 2004-03-10 | 2007-10-23 | Halliburton Energy Services, Inc. | System and method for mixing water and non-aqueous materials using measured water concentration to control addition of ingredients |
| CN107525734A (en) * | 2017-09-28 | 2017-12-29 | 西南科技大学 | A kind of sandstone is aqueous, the measuring system and measuring method of clay content |
| JP2019043028A (en) * | 2017-09-01 | 2019-03-22 | アルボルデマンサナ株式会社 | Spot milling unit for concrete |
| CN111516146A (en) * | 2020-04-29 | 2020-08-11 | 湖南三一快而居住宅工业有限公司 | Concrete mixing device and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934917A (en) * | 1972-08-03 | 1974-03-30 | ||
| JPS4934918A (en) * | 1972-08-04 | 1974-03-30 | ||
| JPS5378222A (en) * | 1976-12-22 | 1978-07-11 | Jirou Sakurai | Method of correcting and indicating appropriate quantity of final water supply for cement in final stage of cocrete blending |
| JPS578555A (en) * | 1980-06-18 | 1982-01-16 | Ricoh Co Ltd | System for detecting and processing abnormal state of copying machine |
| JPS59196206A (en) * | 1983-04-05 | 1984-11-07 | 伊東 靖郎 | Method of adjusting hydraulic substance kneaded material |
-
1988
- 1988-12-24 JP JP63327019A patent/JPH0763969B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934917A (en) * | 1972-08-03 | 1974-03-30 | ||
| JPS4934918A (en) * | 1972-08-04 | 1974-03-30 | ||
| JPS5378222A (en) * | 1976-12-22 | 1978-07-11 | Jirou Sakurai | Method of correcting and indicating appropriate quantity of final water supply for cement in final stage of cocrete blending |
| JPS578555A (en) * | 1980-06-18 | 1982-01-16 | Ricoh Co Ltd | System for detecting and processing abnormal state of copying machine |
| JPS59196206A (en) * | 1983-04-05 | 1984-11-07 | 伊東 靖郎 | Method of adjusting hydraulic substance kneaded material |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02137206U (en) * | 1989-04-21 | 1990-11-15 | ||
| NL9302191A (en) * | 1993-12-15 | 1995-07-03 | Daanen B V Maschf | Method and apparatus for proportioning raw materials to make bricks |
| JP2002067025A (en) * | 2000-08-24 | 2002-03-05 | Kurihara:Kk | Concrete manufacturing method and hopper for storing aggregate |
| US7284898B2 (en) | 2004-03-10 | 2007-10-23 | Halliburton Energy Services, Inc. | System and method for mixing water and non-aqueous materials using measured water concentration to control addition of ingredients |
| JP2019043028A (en) * | 2017-09-01 | 2019-03-22 | アルボルデマンサナ株式会社 | Spot milling unit for concrete |
| CN107525734A (en) * | 2017-09-28 | 2017-12-29 | 西南科技大学 | A kind of sandstone is aqueous, the measuring system and measuring method of clay content |
| CN107525734B (en) * | 2017-09-28 | 2023-08-29 | 西南科技大学 | System and method for measuring water content and mud content of sand and stone |
| CN111516146A (en) * | 2020-04-29 | 2020-08-11 | 湖南三一快而居住宅工业有限公司 | Concrete mixing device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0763969B2 (en) | 1995-07-12 |
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