JPH07117042A - Mixing value correction method in concrete production plant - Google Patents

Abstract

PURPOSE:To correct a standard mixing value set in an operation panel of a concrete production plant in accordance with an outside air temperature or a site-specified slump value and automatically set the corrected value. CONSTITUTION:A standard mixing value is previously stored in an operation panel in addition to an increase/decrease ratio of water per unit amount corresponding to an outside air temperature or a site-specified slump value and a mixing correction operation expression for again operating a standard mixing value in accordance with the increase/decrease ratio of water per unit amount. An input column for an outside air temperature or a site-specified slump value is arranged on an operation screen of the operation panel. In the presence of the input of an outside air temperature or a site-specified slump value 10 the input column and a temperature correction instruction or a slump correction instruction, an increase/decrease ratio of water per unit amount corresponding to the inputted value is called from a storage part and selectively determined. Using the mixing correction operation expression, standard mixing value is again operated, and the operated result is automatically set to the operation panel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for correcting a mixture value in a concrete manufacturing plant, and more particularly to a method for correcting a mixture value for dealing with a change in outside air temperature and a slump value designated on site.

[0002]

2. Description of the Related Art The operation control operation panel of a concrete manufacturing plant for measuring and kneading various concrete materials stores in advance a mixture value of various materials calculated for each concrete type, which is desired at the time of shipment. It is designed to read out and set quality mixture values, and weigh and knead them.

A large number of compound values corresponding to seasonal temperature changes are prepared, and recently, a large number of compound values are stored and stored by practical use of an operation panel having a large-capacity memory element. The operator has come to be able to select and set as needed according to need.

Further, as for the slump value designated by the site, a blending value in consideration of the slump loss during transportation has come to be prepared, and these can be appropriately selected and set for use as necessary. .

[0005]

However, although it has become possible to use a large number of seasonal blends or blends corresponding to the slump value designated on site, the storage element for storing them has a large capacity. However, although the storage element has a large capacity and is inexpensive, it is also a factor of increasing the cost of the operation panel.

[0006] Also, these many formulations are not only used by switching each season, but also applied when there is a change in the outside air temperature. Therefore, in order to select a desired composition, it is necessary to take a troublesome procedure of calculating the rate of increase / decrease in the unit water amount from the outside air temperature and the desired slump value and selecting the composition suitable for the rate of increase / decrease. Therefore, although there is a skilled operator or laboratory staff, it is possible to quickly respond to the operation of switching the blending, but if the operator is inexperienced, the decision of the switching and the switching work may be unfamiliar and may cause inconvenience. It also includes sex.

In view of the above points, the present invention provides a method for correcting a mixture value in a concrete manufacturing plant that can automatically set an appropriate mixture value based on the outside air temperature and the slump value designated on site in the operation panel. To aim.

[0008]

In order to achieve the above-mentioned object, the present invention provides a method for correcting a mixture value according to claim 1, wherein a standard for each type of concrete is previously provided on the operation panel of the concrete manufacturing plant. The composition value, the rate of increase or decrease in the unit water amount according to the outside air temperature, and the correction calculation formula that corrects the composition value from the rate of increase or decrease in the unit water amount are stored and stored, and when the concrete is shipped, the standard composition value to be shipped is stored. While reading out and setting on the operation panel, if the outside air temperature is input to the operation panel to correct the mixture value, the outside air temperature is read and the rate of increase or decrease of the unit water volume used for the calculation calculation of the combination value from the read outside air temperature Then, the composition value is recalculated by the modified calculation formula using the rate of increase / decrease of the unit water amount, and the modified composition value is reset on the operation panel to automatically correct the previously set composition value. To It is characterized in that was.

Further, in the mixing value correcting method according to the second aspect, the standard mixing value for each concrete type, the increase / decrease rate of the unit water amount according to the slump value, and the unit are preliminarily provided on the operation panel of the concrete manufacturing plant. In order to correct the composition value while storing and storing the correction calculation formula that corrects the composition value from the rate of increase or decrease of water quantity and reading the standard composition value to be shipped and setting it on the operation panel at the time of shipment of concrete. If the slump value is input to the operation panel, read the slump value, determine the increase / decrease rate of the unit water volume used for the correction operation of the blended value from the read slump value, and use the increase / decrease rate of the unit water quantity to perform the correction operation. The feature is that the compound value is recalculated by the formula and the modified compound value is reset on the operation panel to automatically correct the compound value set previously.

Further, in the method for correcting a mixture value according to the third aspect, the standard mixture value for each concrete type, the rate of increase or decrease of the unit water amount according to the outside temperature, and the slump are preliminarily provided on the operation panel of the concrete manufacturing plant. The rate of increase or decrease of the unit water amount according to the value, and the correction calculation formula that corrects the mixture value from the rate of increase or decrease of the unit water amount are stored and stored, and when the concrete is shipped,
While reading the standard mixture value to be shipped and setting it on the operation panel, if the outside air temperature and slump value are input to the operation panel to correct the combination value, the outside air temperature and slump value are read and the read outside air From the temperature and slump value, determine the increase / decrease rate of the unit water amount used for the correction calculation of the blended value, recalculate the blended value by the correction calculation formula using this increase / decrease rate of the unit water amount, and use this corrected blended value on the operation panel. The feature is that it is reset and the previously set blending value is automatically corrected.

[0011]

According to the method for correcting a mixture value according to claim 1 of the present invention, when the outside air temperature for correcting the mixture value is input to the operation panel at the time of shipment of concrete, first, the outside air temperature is read, and the temperature is read in advance. Determine the rate of increase or decrease of the unit water volume corresponding to the outside air temperature stored and stored in the operation panel. When the rate of increase / decrease of the unit water amount is determined, the rate of increase / decrease is applied to the correction formula for the compound value to calculate the compound value again. This calculation result is replaced with the previously set compound value on the control panel to automatically correct the compound value.

According to the blending value correcting method of the second aspect, when the on-site designated slump value for the blending correction is input as in the case of the blending value correction by the on-site designated slump value as well, The rate of increase or decrease in the unit water amount corresponding to the slump value is determined, the blending value is corrected and calculated again, and the blending value on the operation panel is replaced to automatically correct the blending value.

Further, according to the blending value correction method of the third aspect, when both the outside air temperature and the slump value designated on site are input, the rate of increase or decrease of the unit water amount corresponding to the outside air temperature,
Decide the rate of increase or decrease of the unit water volume corresponding to the slump value, and determine the rate of increase or decrease of the unit water volume corresponding to both the outside air temperature and the slump value by adding and correcting the respective increase / decrease rates, and perform the correction calculation of the blended value again. , The composition value is automatically corrected by replacing it with the composition value on the operation panel set earlier.

As described above, the operator can easily correct the composition simply by inputting the outside air temperature and the slump value designated on the site to the operation panel. Moreover, since the mixture is corrected by the correction calculation, it is not necessary to store an enormous mixture value due to a temperature difference or a slump value difference.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an external view of a control panel 1 which adopts the method for correcting a mixture value according to the present invention. The control panel 1 has a control section 2 built-in inside the control panel 1, and the control panel 1 is provided above the control panel 1. A display device 3 for displaying control information is provided.

2 and 3 show the display contents displayed on the display device of the operation panel 1. FIG. 2 is a main screen mainly used during plant operation, and the left side of the screen is for weighing materials. , The display of kneading relations is arranged, and the display of the setting of shipping instruction contents and reservation relations is arranged on the right side.

On the upper left side of the screen, there is a set weight value display field 4 for displaying the set weight value of each material of the composition to be shipped, and the lower side thereof displays the weight value of the actually weighed material. A measurement value display field 5 is arranged. In addition, in the lower part of these columns, a tank-shaped design 6 in the shape of an elongated tank is arranged so that the change of the set value or the measured value can be seen at a glance, and the tank-shaped design 6 of the tank-shaped pattern 6 is set according to the change amount of the set value or the measured value. The inner color scheme is displayed as a graphic that moves up and down.

Below this tank-shaped design 6, a mixer design 7 in which a mixer is designed and a hopper design 8 in which a concrete hopper is designed are arranged, and in the portion of the mixer design 7, a compound number display field indicated by HNO. The compounding number of the kneading concrete is displayed in 9, and the number of the truck to be loaded is displayed in the truck number display field 10 indicated by TNO. Similarly, in the hopper design 8, the mix number of the stored concrete, the storage amount, and the number of the truck to be loaded are displayed.

A surface water correction column 11 for inputting and setting the surface water ratio of the aggregate is arranged at the lower center of the screen. S (sand),
When the surface water ratio measured at the portion indicated by G (gravel) is input and set, the water content correction is performed on the compound value of the material based on the surface water ratio.

Further, the surface water correction column 11 shows the temperature, SL
Outside temperature input field 12 and slump value input field 13
And are arranged. This will be explained in detail later, but temperature compensation,
Alternatively, it is a field for inputting an outside air temperature for slump correction and a designated slump value at the site.

On the upper right side of the screen, there is arranged a column for setting the reservation of shipping contents, the upper arranged column is the shipping contents setting column 14 for shipping this time, and the lower arranged columns are the next and subsequent ones. It is a shipping content reservation column 15 in which shipping contents are reserved. In the reservation column, the contents are also transmitted and set from a shipping instruction device or a shipping management device, which is installed separately from the operation panel 1, for instructing shipping. In these columns 14 and 15, there are displayed a number indicating the construction category indicated by CH, a combination number indicated by HNO, a shipment amount indicated by m ³ , and a loading truck number indicated by TNO.

FIG. 3 is a screen for presetting and registering the content of the composition. In the center of the screen is arranged an address column 16 that divides the inside of the frame, and each of the blocks of the address column 16 is arranged. Each address is set as a unique address, and an address number indicated by ANO is set. When an arbitrary combination is added to the address and input, the address is stored and registered in the storage unit of the operation panel 1.

For example, when registering the composition in the upper left section of the address field 16, first, A in the composition registration field 17 at the top of the screen is displayed.
In the case of NO, enter No. 0000, and then enter the combination number as 0001 in the HNO field. 21 in the name field
Enter 0-10-040 to enter the quality of the concrete. Further, in the set value input field 18 on the left side of the screen, the standard compound value of each material corresponding to the compound number 0001 is entered.

The input field arranged at the right end of the screen is a data input field 19 for inputting data to be used for the calculation of composition.
Input column of W / C showing water cement ratio, S showing fine aggregate ratio
There is an input field for / a and an input field for the amount of air, and a specific gravity setting field 20 for inputting the specific gravity of each aggregate and cement is arranged below it.

Further, the operation panel 1 stores a known correction calculation formula for correcting the standard mixture value on the basis of the unit water amount shown in the following equation in the storage section so that the correction calculation of the mixture value can be carried out if necessary. It is configured.

1. Unit water amount calculation formula W ′ = W × (1 + water increase / decrease rate% / 100) (1) W ′: corrected unit water amount W: standard setting unit water amount 2. Unit cement amount calculation formula C ′ = (W ′ ÷ (W / C)) × 100 (2) Cv = C ′ ÷ cement specific gravity (3) C ′: Corrected cement amount W / C: Setting Water cement ratio Cv: Cement volume 3. 3. Unit admixture amount calculation formula AD ′ = (C ′ ÷ 100) × AD (4) AD ′: Modified admixture amount AD: Standard setting compound value 4. Unit fine aggregate amount calculation formula Av = (1000- (W ′ + Cv + (air amount% ÷ 100) × 1000) (5) Sv = Av × ((S / a%) ÷ 100) ( 6) S ′ = Sv × fine aggregate specific gravity (7) Av: total aggregate volume Sv: fine aggregate volume S / a: set fine aggregate ratio S ′: corrected fine aggregate amount 5. Unit coarse aggregate amount calculation formula Gv = Av−Sv (8) G ′ = Gv × coarse aggregate specific gravity (9) Gv: coarse aggregate volume G ′: corrected coarse aggregate amount Further operation The panel 1 is configured so that the blended value can be automatically corrected by the outside air temperature and the designated slump at the site, and the procedure will be described based on FIGS. 4 to 7.

FIGS. 6 to 7 are flow charts showing the procedure for correcting the blend value by the outside air temperature and the designated slump at the site, and S1 to S19 in the drawings represent respective steps.

First, before the operation of the plant, the correlation between the outside air temperature, the designated slump value at the site, and the rate of increase or decrease of the unit water amount is obtained from the quality control data of the test-mixed or shipped concrete, for example, shown in FIGS. As described above, the outside air temperature and the slump value designated by the site are appropriately classified according to the environment and the construction situation, and the appropriate increase / decrease rate of the unit water volume with respect to the outside air temperature or the slump value designated by the site is prepared as a temperature table and a slump table.

Then, as an initial setting, the operating panel 1 is first memorized by inputting and storing the rate of increase / decrease of the unit water amount with respect to the outside air temperature based on the temperature table shown in FIG. 4, and then based on the slump table shown in FIG. The increase / decrease rate of the unit water amount with respect to the designated slump value is input and stored (S2). It is determined whether or not the initialization is finished (S3), and if it is to be continued, the procedure returns to step S1 to continue the input. When ending, go to END and end.

When a concrete shipment request is made, the construction number, mix number, shipment amount, and truck number are entered in the shipment contents reservation field 15 on the main screen of FIG. If the shipping content setting field 14 is empty, the shipping content is automatically advanced and set. Here, in the operation panel 1, it is determined whether or not the shipping reservation has been advanced and set in the shipping content setting field 14 (S
4). If it has not been set, it will be in a setting waiting state, and if it has been set, the standard combination value corresponding to the combination number to be shipped is read from the storage section of the operation panel 1 (S5).

Next, it is judged whether or not the outside air temperature is entered in the outside air temperature input field 12 and an instruction to perform temperature correction is given (S6). If the instruction is given, the outside air temperature is read (S7). The increase / decrease rate of the unit water amount corresponding to the outside air temperature read from the temperature table of FIG. 4 is selected (S
8). When the increase / decrease rate of the unit water amount is selected from the temperature table or there is no temperature correction instruction in step S6, the process proceeds to step S9. Then, similarly to the outside air temperature, it is judged whether or not there is an on-site designated slump value input in the slump value input field 13 and there is a correction instruction by the slump value (S9), and if there is an instruction, the slump value is read (S10). ), FIG.
Select the increase / decrease rate of the unit water volume corresponding to the slump value read from the slump table of.

For example, if the outside air temperature is 14 ° C. and the slump correction is +0.5 to correct the blending value, the rate of increase / decrease of the unit water amount is -0.5 from the temperature table of FIG. 4 and the slump table of FIG. The increase / decrease rate of the unit water amount is +1.0. Then, the final rate of increase or decrease in the unit water amount is added up to −0.5 + 1.0 = + 0.5%.

When the rate of increase / decrease of the unit water amount is selected, the corrected blended value is calculated by the blending calculation routine of the flowchart shown in FIG. In the procedure, the increase / decrease rate of the unit water amount selected from the outside air temperature and the slump value is added to calculate the increase / decrease rate used for the blending calculation (S13). The rate of increase or decrease of the unit water amount is substituted into the unit water amount calculation formula (1) to calculate the corrected unit water amount W '(S14).

This corrected unit water amount W'is substituted into the unit cement amount calculation formula (2) to calculate the corrected cement amount C '(S15), and the corrected cement amount is expressed by the specific gravity of the cement by the formula (3). The cement volume Cv is calculated by division.

Further, the corrected admixture amount C'is substituted into the equation (4) of the unit admixture amount calculation formula to calculate the corrected admixture amount AD '(S16).

Next, the calculated corrected unit water amount, cement volume, and set air amount are used in the unit fine aggregate amount calculation formula (5).
The total aggregate volume Av is calculated by substituting into the formula, and the total aggregate volume Av is multiplied by the set fine aggregate ratio S / a from the formula (6) to calculate the fine aggregate volume Sv. This fine aggregate volume Sv is divided by the fine aggregate specific gravity to calculate the corrected fine aggregate amount S '(S17).

Finally, the unit coarse aggregate amount calculation formula (8)
Substituting the fine aggregate volume Sv into the equation, the fine aggregate volume Sv is subtracted from the total aggregate volume Av to calculate the coarse aggregate volume Gv,
The coarse aggregate volume Gv is divided by the coarse aggregate specific gravity from the equation (9) to calculate the corrected coarse aggregate amount G '(S18).

When the blended value of each material thus corrected is calculated, the corrected blended value is replaced with the standard blended value and displayed in the set measured value display field 4 on the main screen.

If there is no correction instruction based on the slump value in step S9, the standard blended value is not corrected and is displayed in the set measured value display field 4. When the blending value is set on the screen, the process proceeds to END, the blending calculation and setting procedure is terminated, and the next material weighing procedure and kneading procedure are performed.

By thus inputting the outside air temperature and the slump value designated on site, the standard mix value of the operation panel is automatically corrected and set, and desired concrete can be shipped promptly.

In the above embodiment, if both the outside air temperature and the slump value designated on site are input and changed on the operation panel, the corresponding increase / decrease rate of the unit water amount is selected, and these are added to obtain the final increase / decrease rate. Was determined, based on the increase / decrease rate, the compound value is corrected again, and the method of automatically correcting the compound value by replacing the previously set compound value on the operation panel was explained based on the flowchart. The method of correcting the compounding value by changing only one of the outside air temperature and the slump value designated on site is the same as the above except that the flow of either one is omitted, and therefore the description thereof is omitted.

[0043]

As described above, in the present invention, the rate of increase or decrease of the unit water amount corresponding to the outside air temperature or the slump value designated on site is obtained in advance, and the rate of increase or decrease of these unit water amounts and this increase or decrease rate are used. The formula for formulating the correction of the mixture is stored and stored in the operation panel 1, and the operation screen of the operation panel 1 is provided with an outside air temperature input field 12 and an on-site designated slump value input field 13 for the outside air temperature or the site. If there is a correction input by the designated slump value, select the increase / decrease rate of the unit water volume corresponding to it,
Since the composition is modified by the composition modification calculation formula using the rate of increase or decrease of the unit water amount, it is not necessary to constantly store and store a large number of seasonal compositions or compositions corresponding to the slump value specified on site as in the conventional case. , All that is required is to store only the standard composition, and the memory element can be configured with a small scale.

Further, since the desired mixture value is calculated and automatically set in the operation panel 1 only by inputting the outside air temperature and the slump value designated on site, the desired concrete mixture setting can be made even by an unskilled operator. Therefore, the concrete can be shipped smoothly and the productivity of the plant can be improved.

[Brief description of drawings]

FIG. 1 is an outline view of an operation panel that adopts a blending value correction method of the present invention.

FIG. 2 is an explanatory diagram showing a screen example of an operation panel.

FIG. 3 is an explanatory diagram showing another screen example of the operation panel.

FIG. 4 is a temperature table showing a relationship between an outside air temperature and an increase / decrease rate of a unit water amount.

FIG. 5 is a slump table showing a relationship between a slump value designated on site and an increase / decrease rate of a unit water amount.

FIG. 6 is a flowchart showing the procedure of a modified combination calculation.

FIG. 7 is a flowchart showing a procedure of a modified combination calculation.

[Explanation of reference signs] 1 ... Operation panel 2 ... Control unit 3 ... Display device 4 ... Set value display field 12 ... Outside air temperature input field 13 ... Slump value input field 17 ... Mixing registration field

Claims (3)

[Claims] 1. A control panel for a concrete manufacturing plant, and a standard formula value for each concrete type, a unit water amount increase / decrease rate according to the outside air temperature, and a correction formula for correcting the mixture value from the unit water amount increase / decrease rate. Is stored and stored, the standard mixture value to be shipped is read out and set on the operation panel when the concrete is shipped, while if the outside air temperature is input to the operation panel to correct the mixture value, the outside air temperature Is read, and the increase / decrease rate of the unit water amount used for the correction calculation of the blended value is determined from the read outside air temperature, the combination value is recalculated by the correction calculation formula using this increase / decrease rate of the unit water amount, and the corrected blended value is calculated. A method for correcting a mixture value in a concrete manufacturing plant, wherein the mixture value is reset on the operation panel and the previously set mixture value is automatically corrected. 2. A control panel of a concrete manufacturing plant, and a standard formula value for each type of concrete, an increase / decrease rate of a unit water amount according to a slump value, and a correction calculation formula for correcting the mix value from the increase / decrease rate of the unit water amount. Is stored and stored, and when the concrete is shipped, the standard mixture value to be shipped is read out and set on the operation panel, while if the slump value is input to the operation panel to correct the mixture value, the slump value is entered. Read the slump value, determine the increase / decrease rate of the unit water volume to be used for the correction calculation of the compound value from the read slump value, recalculate the combination value by the correction calculation formula using the increase / decrease rate of the unit water value, and calculate the corrected combination value. A method for correcting a mixture value in a concrete manufacturing plant, wherein the mixture value is reset on the operation panel and the previously set mixture value is automatically corrected. 3. A control panel of a concrete manufacturing plant, in advance, a standard mixture value for each type of concrete, an increase / decrease rate of the unit water amount according to the outside air temperature, an increase / decrease rate of the unit water amount according to the slump value, and an increase / decrease of the unit water amount. By storing and storing the correction calculation formula that corrects the mixture value from the rate, when concrete is shipped, the standard mixture value to be shipped is read and set on the operation panel, while the outside temperature for correcting the mixture value, If the slump value is input to the operation panel, read the outside air temperature and slump value, determine the increase / decrease rate of the unit water volume used for the correction calculation of the blended value from the read outside air temperature and slump value, and increase / decrease rate of this unit water volume It is characterized in that the compound value is recalculated by using the above-mentioned modified calculation formula by using, and the modified compound value is reset on the operation panel to automatically correct the previously set compound value. Blending value correcting method in the Nkurito production plant.