TWI224192B - Real-time slump test system during producing of fresh concrete - Google Patents

Abstract

The present invention relates to a real-time slump test system during producing of fresh concrete. One of the screens is used as the screen window in the real-time slump test system, so as to display the mixing time and the load current of the mixing machine, thereby forming an ideal reference curve for comparing, monitoring the real-time value of slump during each mixing. The current slump value is continuously displayed for the operating personnel to take the responding action to modify the slump, and prevents the production efficiency from being affected.

Description

Engine 192

[Technical field to which the invention belongs] The change in concrete slump in the instant metric during local production will enable fresh concrete to be measured in the production time field measurement system. The present invention relates to a fresh coagulation system. In particular, it refers to a user who can display the slump value in real time when the system is manufactured by using the mixing of $ and the load current of the mixer. 1 [Concrete conical cone formed by the concrete murmur, then fill the sides of the entire cone (7) 7 3) on both sides, and then take (such as the tenth use of soil slump. Former technology) The degree of soil preparation is very important. (7), the slump side is provided with a handle (7 at the top round mouth (7 slump cone (7)), which should be lifted up (eg, take A benchmark (7 ruler (7 5) as shown in straight eight), the height of this slump measurement, slump as the first cone (1) 2) compound interest tenth 4) how to measure the difference No. 16 Figure 7) is' and will be placed in the mixed use handle. The seventh figure is placed in the circle measurement and mixing. When I learned that (7 top slump of concrete), the amount of production will be slumped (7), and will be rounded to the coagulation. 2) High fresh white at the top The truncated circle is placed in a flat layer to tamp a hanging mound (showing the level of coagulation during mixing, the inventor has taken this into consideration, and has been adhering to the rich expertise of the industry for many years. Practical experience, development and production, especially research and improvement of the lack of previous methods, provide a slump measurement system that can measure the concrete in real time, in order to completely improve all the missing ones in the past. [Content of the Invention] —3 Yiyi Tea: The main object of the present invention is to provide an instant slump measurement system, which uses the (or power value) when the condensate is produced to determine the load current value, the number of mixes =, 'overcome voltage changes , The concrete material wandering curve "and the standard current value ^ and recorded as" the reason can be known at the time of production or not 2 so that fresh concrete can be iik ^ slump value in the future, rather than as Loss and perplexing by 11% of practice. The closest thing is mixing; two degrees =; j: κ slump value relationship of concrete but judged by the previous explanation to determine the degree of degree. There are many other μ * will also affect In addition to the degree of fall, the present invention is to change the value of the electric current and the value of the electric charge one by one, so the change of the current value and the slump value are equal to each other, so that the load of the mixer is 1. Quantity: You surname $ ' The mixing amount cannot be greater than: Dai: 2 mixing capacity set, multiples of 5 cubic meters per batch and the maximum θ large mixing capacity; it is usually 0.24 0 0 kgS). General contract for raw materials 2 3 0 0-2 · Mixed concrete materials: 夂 Various different material formulas:: 2 materials (mixing code) representative, water and other additives ratio:, cement, fly ash, furnace Stone powder 3. Mixing: The amount of water ... includes various types. The main factors for the amount of soil and slump added in the amount of other materials used in solid kiln. The amount of water that is mixed is the effect of coagulation 1224 2 90133052

4. The resistance change of the mechanical transmission. The wear of the mechanical transmission and the backing plate causes the grinding force to change. The mixing blade j and the mixing blade change from the force. Usually, it is a gradual test. Do not change this factor. Included considerations: Yan ,,,, and: 7: Pieces of knives and backing plates that are subject to wear should be regularly inspected and adjusted, and must be :: factors that have a cause, which affects "immediate [, update. Right cause Mechanical accuracy, but the attack can present a lot of problems. ® Machinery itself lacks maintenance and repair5. Power supply voltage changes. · If the three-phase is moved, the load will be mechanical, electrical and mechanical load. No change) is proportional to the load KCurrent) and the power supply voltage (v〇it⑽ 6. The starting current when the motor is just started is slightly two because the normal production operation procedure is ": =: From the point of being ignored, start the mixer motor first, Start-up completed = ramping into the mixing without stopping. In the continuous production, the mixer motor must be overcome in order to achieve the system of the present invention. &Amp; wNeutral1. Overcoming the impact of voltage fluctuations: Overcoming the following effects: Because the load current of the motor and the power supply voltage will detect the power supply voltage, the ratio is proportional. Therefore, the present invention assumes that the original voltage changes and corrects the current value at any time. Later, because the electric current is A1, then: and the current is affected by A2 / V1 = A2 / A1

Because Taiwan ’s low-voltage industrial electricity is often C V, the present invention is

__ ^ Set V 1 to the normal rated voltage value, that is, AC

Page 7 I〒4L92 丨 Fly 9 90133052 A_L · Said correction Faxiao said 220V. If the current voltage value is V2 and the current current value is A2, the current value of the mixer at the rated voltage (that is, AC 2 2 Ο V) is A 1 = A 2 * V 2/2 2 0. Therefore, as long as the current voltage value and current value can be obtained, the current value can be adjusted to the current value at A C 2 2 0 V according to this formula. Therefore, the influence of the voltage fluctuation on the current is overcome. 2 · Overcome the impact of mixed concrete materials: Because different materials represent different material mix ratios; they are also called "mixing code" or "material number". If different material numbers are independently given to the database to record their "now wanted slump curve" and a slump calculation coefficient is set independently, it will not be affected by different materials, and there is no need to determine how to separate them. Different from the mode into different "mixed groups", it's troublesome. 3 · Overcome the effects of different mixing quantities: Even when mixing the same part number, different quantities are often mixed. The difference in the amount of mixing has a considerable impact on the load current of the mixer. Because of the general concrete premixing plant, when producing concrete, the mixing quantity per dish is an integer multiple of 0.5M3. Taking the mixing machine with a maximum mixing volume of 4.5M3 as an example, βρΟ · 5Μ3, 1.0Μ3, 1.5Μ3 , 2.0M3, 2.5M3, 3.0M3, 3.5M3, 4.0M3, 4.5M3, etc .; therefore, the present invention not only gives independent material databases with different material numbers, but also each database is divided into several data areas. Each data area corresponds to a mixing quantity and is used to record its "ideal slump curve" and the standard current value. In order to make the technical method used in the present invention easy to understand the features, objectives and effects of the present invention, the detailed description with the drawings and numbers is as follows: [Embodiment]

Page 8 ΟΛ C:: I ?: 丨 Case No. 90133052 千 η 5. Description of the Invention (5) First, please refer to the first figure, which is a system architecture diagram of the present invention, using a current transformer (C · T) (1), voltage ratio (P · T) (2) and voltage and current communication is (3), (3 1) (Voltage / Current Tra

nsducer) 'Convert the load current of the mixer (4) to a DC current of 4 to 20 mA, and connect it to the programmable controller (5) (PLC) analog / digital conversion module (5 1 of the automatic production control system) ) (A / D

Module), and the converted value is transmitted to the industrial-grade personal computer (6) (IPC) through the communication module (5 2) (Communication Module), and the personal computer (6) can obtain the load of the mixer (4) at any time. Current and voltage values. The computer (6) of the production control system has two screens (6 systems: Ding = Zhiying as the axis ⑽ "When mixing: = 〇 (:: =『) · = flat seat

Considering the resolution of the graph, the upper limit is used as the standard value 蛊 = 仵 to the best slump. The reference is set to set the upper limit as the standard value 4 f) (Ί △, the private value can be adjusted, this. UUA, the lower limit is used as the standard value For each mixing process of i 5 〇A, draw a line on the slump monitoring screen at any time. If the current value of the load current of the machine is in dark color, it is the ideal reference curve. ”For example, the fifth == a mixing mode has not Record the database of “On 7F's only load curve in the computer's hard disk drive. The ideal reference curve”, each ~ a sub-directory, dedicated to store the factory in an independent database (such as the zy different “material number” The corresponding library is divided into nine rows, which correspond to the seven figures shown), each data-a different mixing amount (from 0.5, κ 〇

$ 9 pages φ4192! No " "? j υ 6 uf number 90133052_year month day correction_

L, 1.5 ......... to 4.5 cubic meters), each row is divided into 101 stops, the first 100 stops are used to store the current value of the "ideal reference curve" The 101st field is used to store the "standard current value". If the "ideal reference curve" has not been recorded in this mixing mode, and the quality control personnel have found through testing that the slump of the mixed concrete is very standard, click the "Record" button, and the computer will The load curve current value on the slump monitoring screen is averaged once per second, and then the average current value is stored into the corresponding stop 1 to 100 in sequence from the mixing time 1 to 100 seconds. The load current value of the "mixing set time" is averaged five seconds before the cutoff time to obtain the "standard current value", and then this "standard current value" is stored in the field 101. If the "ideal slump reference curve" has been recorded in this mixing mode, "before the start of the fall," the computer will buy it from the database and show the "ideal slump reference curve" on the slump monitoring screen (such as Figure 8), where the width of the reference curve can be set. When the “mixing set time” begins 20 seconds before the end of the mixing process, and continues until the mixer starts to discharge, the computer will display the measured metric value in the upper right corner of the slump monitoring day (such as the ninth, tenth, eleventh) (Shown in the figure), as shown in Figure 9, the mixing load curve is consistent with the ideal reference curve, indicating that the slump of this mixing is very standard. As shown in Figure 10, the load curve is lower than the ideal reference curve, indicating that the slump is higher this time. As shown in Figure 11, the load curve is higher than the ideal reference curve, which indicates that the slump is low. The calculation formula of this slump value is: Measured slump value = standard slump value-slump coefficient * (current current value-standard current value) / 1 0 0.

Page 1224192 "1: 7_ No. 901330R? Amend 3 main and # are currently displayed as stored values. This time the twelve pictures are displayed as each member found clicks to move to the inventory. Degree (standard current value-standard current value) and the actual slump monitoring of the machine in the corresponding day and material number (with the matching number of materials shown (the proportion of the daytime surface monitoring slump) If the key nose is correct, the slump value will be correct if the coefficient value is mixed later.] 氺 1 0 0 The under-mixing mold ratio code on the upper left of the load current surface is coded) Daylight surface) Ratio code)) Let ’s enter the “slump system and the same calculation formula as the occasional degree value” * (current value of current in this time: correction of changes, standard current value: standard slump value in the field of 1 0: slump value (If the slump coefficient is as follows: (If the quality manager is not correct in the twelfth figure, it is worthwhile. The computer will enter the matching data to predict that the slump coefficient = value (the voltage angle has passed).) The predicted slump value shown in the database, the first, the slump coefficient value in the design standard 〇 Actually correct slump value ", and when the stock number is stored, the invention of slump" will be in the day after uniformity, and then check the value by 1 1 7 or concret. To subtract, then remove the test value to re-slump The value is compared with the above test. The average slump value of the agitation CNS test f. The four tests are repeated with an average of three measurements. The repeating measurement system is shown on the material surface window in the mixer. Slump measurement: Record the fresh concrete samples that were completed when the pan was mixed, and perform four actual finished product slump tests in accordance with the Method of slump e method to obtain low artificial measurement errors. Each test value is added to the one with the largest difference from the average value, and the average value is left. The error value is compared with that of the "instant slump measurement system". The results are made in different mixing dishes. Test report.

1224192 1224192 i Case No. flOlWOW V. Description of the Invention (8) The results shown in the table of the fifteenth figure based on the above method are as follows. The results are analyzed as follows: 1. The sample of == has a range of setting from ― to 2Qem Slump range of commonly used commercial concrete. 3. The difference between the measured slump value and the actual slump error rate is within ± 0.5cm. π 又 幻 # 3. ^ It shows that the accuracy of the measurement is very real. The test according to CNS 1 ”6 is a test of the degree of J. The difference between J and J is greater than " .5cm. It is also a common method: check: invention In the manual test | 4 ^ So this is accurate. ㈢ Take the average of the test values to try to achieve the present invention is mainly based on the load current of the mixing machine. 1 The use of binarization will affect the load current of the mixing machine * To make: Among other things, it will affect the change of the slump value of the mixed concrete into a constant 禆 蕤 ~ ^ measurement and measurement system during movement and mixing ", the key to making a set of" that is 1. the present invention in each The comparison of the plate is less, and it has the following advantages, such as: "ideal reference curve of ideal degree", and the practical value of this mixing mold. The measurement accuracy is very high. 2. The present invention excludes the power source ^ _ first, and then subdivides each type of mix and each-=. The influence of the current is an "ideal slump reference curve green ridge and number". Independently set the calculation coefficients, and ", and the accuracy of setting a slump operation and discrimination measurement independently. Page 12 ^ 24192 :: 1. Shoveling and talking i 4. Take 5 during mixing or too early · "Mix 6" of the operation course · Coagulation 7 of the coagulation of the present invention · Measured at the amount of mixing? If not Then by the operation 8 · Production control is included in 9 · In the mixing water volume, in summary, the place has not been public, and according to law, it is practical

Qni. ^ 0R9 53) in the middle stage, low, without having to wait for response measures, the repair sequence is simplified, and no group training ", and the injury has been able to achieve automatic soil slump value, which is controlled when the soil resolution is completed. If the slump value of the system is determined to be satisfactory, the engine operator will adopt a control system, which can continue to mix the concrete in the production machine of the computer. The specific structure disclosed by the present invention is proposed before the application. . Amend

It can be seen uniformly on the curve; the operation does not affect the production of the various mixers and mixers in the mixer, but it can be judged to take corrective measures. The concrete slump mixer for this slump can be measured afterwards. Slump. Meet the expectations that have been seen in the Patent Law of the United Nations, please review it. The moonlight changes from the camp screen to the complete mixing, and you need to think about it. The measurement is still available for the operator? Whether a computer is required is also indicated in the production batch and corrective measures are automatically managed. "In the real-time slump record, if the side is too high, you can modify the embodiment to make it. Not only is the application completely unsatisfactory, but the high slump can improve the efficiency. Differentiate into different mixed and even The production batch is used to measure whether the system is qualified for discharge operation, and the measured travel value is tracked. Add the appropriate use efficacy products to the regulations and requirements, and give quasi-special

Page 13 1224192 9 Case No. 90133052 Brief Description of Modified Drawings [Schematic illustrations of the present invention, the present invention, the present invention, the present invention, the present invention, the present invention, the present invention drawings: the present invention, the present invention, the present invention, the present invention, Figures and Figures Figures and Figures Figures Figures Figures Figures Figures Figures Figures Tenth Tenth Tenth Tenth Tenth [Reference Numbers First Second Third Fourth Fifth Sixth Seventh Eighth Ninth Tenth Tenth One figure, twelve figures, three figures, four figures, five figures, six figures, seven figures, and eight figures.] The overall frame of the production control of the production control of the instant collapse of the machine and the application of the equipment of the ideal collapse of the standard of collapse Slightly slump ratio Slightly slump Slight slump Slight slump Slump cone Slump cone Slump Measure the screen of the patterning system (1) The entire screen of the system (2) Measure the screen window load Curve material storehouse (1) Material storehouse (2) The curve performance diagram of the reference curve degree is high The curve performance diagram is low The curve performance diagram when the curve is low Day test table (1) Test table (2) Test table ( 3) Three-dimensional structure diagram Operation schematic diagram (1) Current transformer (2) Voltage regulator (3) Voltage transmitter (3 1) Current transmitter (4) Mixer (5) Programmable controller (5 1) A / D converter (5 2) communication module 第 14 页

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Claims (1)

1 · An instant slump measurement system during the production of fresh concrete. The 1-day measurement system uses a sensor to detect the current and change of the cement mixer motor, and uses a specific flow device (C · T), Voltage ratior (ρ · T) and voltage ^ Current transmitter (Voltage / Current Transducer), which converts the on-board current into a DC current signal and connects to the programmable controller (PLC) of the automatic production control system. Digital conversion module (a / d 'Module), and the converted value is then transmitted to the personal computer (p C) through the communication module (c0mmunicat〇n Modu 1 e), then the personal computer can obtain the mixer load at any time The current value and voltage value are displayed on the computer screen by the calculation of the personal computer to form a changing curve chart, and one of them is used: a screen is used as the screen window of the real-time collapse measurement system to display the mixing time. The ideal reference curve is for each mixing time = the slump value of the fresh concrete mixing process can be known immediately, f continues to display the current slump value for the operator to improve and take corresponding measures to the day: ^, In order to avoid affecting productivity and quality, and to become 〆 kinds of instant slump measurement system of concrete mixing at once with paternity altogether in the defensive. Μμ = 1 The measurement system of fresh concrete as described in item 1 of the scope of the patent application is a measurement system. Among them, the change in the load power of the mixer can also be used as the basis for setting the measurement system. The new generation of lightning detection system at the time of production of fresh concrete as described in item 1 of the patent scope, where the current of the mixer load is converted into a direct current 4 ~ 20mA signal. The #m ί · t application of the patent scope of the first scope of the fresh concrete production and measurement system, the personal computer (P c) can be an industrial Page 16 Page 17