JP3608810B2 - Method for correcting compounding values in concrete production plant - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a blending value correcting method in a concrete manufacturing plant, and more particularly to a blending value correcting method for dealing with changes in outside air temperature and on-site designated slump values.
[0002]
[Prior art]
The operation control panel of a concrete manufacturing plant that measures and kneads various concrete materials stores and stores the pre-calculated values of various materials for each type of concrete. Read and set, weigh and knead.
[0003]
There are many blending values corresponding to the seasonal temperature changes. Recently, many of these blending values have been stored and stored by the practical use of operation panels with large-capacity storage elements. It has come to be able to be selected and set appropriately as required.
[0004]
In addition, as for the on-site designated slump value, a blended value considering slump loss during transportation has been prepared, and these can be appropriately selected and used as necessary.
[0005]
[Problems to be solved by the invention]
However, it has become possible to use a mixture corresponding to a large number of seasonal blends and on-site specified slump values, but the memory elements for storing them require a large capacity, and the memory elements are also large. Even though the capacity has been reduced and the cost has been reduced, it is also a factor in increasing the cost of the operation panel.
[0006]
Moreover, these many formulations are not only used by switching every 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 cumbersome procedure such as calculating an increase / decrease rate of the unit water amount from the outside air temperature or a desired slump value and selecting a composition that matches the increase / decrease rate. Therefore, while there is a skilled operator or laboratory staff, it is possible to quickly change the composition, but if it is an inexperienced operator, it may be inconvenient because the switching judgment and switching work may be inexperienced It also includes sex.
[0007]
The present invention has been made in view of the above points, and an object thereof is to provide a method for correcting a blending value of a concrete manufacturing plant that can automatically set an appropriate blending value based on an outside air temperature or an on-site designated slump value on an operation panel. .
[0008]
[Means for solving problems]
In order to achieve the above object, the present invention provides a blending value correcting method according to claim 1, wherein a standard blending value for each concrete type and a temperature classification of the outside air temperature are preliminarily provided on an operation panel of a concrete manufacturing plant. And a temperature table for setting the rate of increase / decrease of unit water volume corresponding to the temperature classification, and a correction formula for correcting the compounding value from the rate of increase / decrease of unit water volume selected from this temperature table are stored and stored. during shipping, while setting the control panel reads the standard formulation values to be shipped, reads the outside air temperature that is input to the operation panel in order to modify the formulation values, against the outside air temperature read in the temperature table At the same time, the rate of increase / decrease of the unit water volume used for the correction calculation of the blending value is selected and determined, and the blending value is calculated again by the above correction formula using the rate of increase / decrease of the unit water volume. It is characterized in that so as to automatically correct formulation value set previously reset the formulation values to the control panel.
[0009]
Moreover, in the blending value correction method according to claim 2, the standard blending value for each concrete type, the rate of increase / decrease in unit water volume according to the slump value, and the increase / decrease in unit water volume are preliminarily placed on the operation panel of the concrete manufacturing plant. rate may be stored stores the modified calculation equation for correcting the blending value from the time of shipment of the concrete, while setting the control panel reads the standard formulation values to be shipped, Misao Sakuban to modify the formulation values Load the input slump value, to determine the rate of change of the unit amount of water used from the read slump value in the correction calculation of the blending value, the calculated blending value again by modifying an arithmetic expression using a change rate of the unit water The corrected blending value is reset on the operation panel, and the previously set blending value is automatically corrected.
[0010]
Furthermore, in the blending value correction method according to claim 3, according to the standard blending value for each concrete type, the rate of increase / decrease in unit water volume according to the outside air temperature, and the slump value on the operation panel of the concrete manufacturing plant. The unit water volume increase / decrease rate and the correction formula that corrects the composition value from the unit water amount increase / decrease rate are stored and stored, and when the concrete is shipped, the standard composition value to be shipped is read and set in the operation panel. on the other hand, operation panel to input the ambient temperature to modify the formulation values, reads the slump value, the read ambient temperature, to determine the rate of change of the unit amount of water used after slump value in the correction calculation of the blending value, the unit It is characterized in that the blending value is calculated again by the correction formula using the rate of increase / decrease in the amount of water, and the corrected blending value is reset on the operation panel to automatically correct the previously set blending value. To have.
[0011]
[Action]
According to the blending value correcting method of the first aspect of the present invention, the temperature of the outside air input to the operation panel for correcting the blending value at the time of shipment of the concrete is read and stored in the operation panel in advance. Check and select the rate of increase / decrease of the unit water volume corresponding to the temperature category corresponding to the read outside air temperature. When the rate of increase / decrease of the unit water amount is determined, the rate of increase / decrease is applied to the formula for correcting the blending value, and the blending value is calculated again. The calculation result is automatically corrected by replacing the calculation result with the previously set combination value on the operation panel.
[0012]
Further, according to the blending value correction method according to claim 2, with respect to the modification of the blending value by the site-designated slump value, the site-designated slump value input for blending correction is read in the same manner as described above, and the slump value is handled . and to determine the rate of change unit water take corrective operation again blending value is to that correct automatically blending value by replacing the blending value of operation panel previously set Osamu.
[0013]
Further, according to the blending value correcting method according to claim 3 , both the outside air temperature inputted for the blending correction and the field-designated slump value are read , the rate of increase / decrease of the unit water amount corresponding to the outside air temperature, and the slump value. The unit water volume increase / decrease rate corresponding to each is determined, the unit water volume increase / decrease rate corresponding to both the outside air temperature and slump value is determined by adding and correcting each increase / decrease rate, and the blending value is corrected again. it is the that automatically correct blending value Osamu replaced with blending value operation panel set to.
[0014]
As described above, the operator can easily correct the composition simply by inputting the outside air temperature and the on-site designated slump value to the operation panel. In addition, since the composition correction is performed by the correction calculation, it is not necessary to store enormous composition values due to temperature differences or slump value differences.
[0015]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0016]
FIG. 1 is an external view of an operation panel 1 that employs the blending value correction method of the present invention. A control unit 2 for controlling a plant is built in the operation panel 1, and plant control information is stored in the upper part of the operation panel 1. A display device 3 for displaying is provided.
[0017]
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 related to the weighing and kneading of materials. Is displayed, and on the right side, a shipping instruction content setting and reservation related display section is arranged.
[0018]
In the upper left part of the screen, there is a set measurement value display field 4 for displaying the set measurement value of each material of the composition to be shipped, and the lower part is the measurement value display for displaying the measurement value of the actually measured material. Column 5 is arranged. Also, in the lower part of these columns, a tank-like pattern 6 having an elongated tank shape is arranged so that changes in the set value and the measured value can be understood at a glance, and the tank-shaped pattern 6 is changed according to the amount of change in the set value and the measured value. The inner color scheme is displayed by a graphic that moves up and down.
[0019]
Below this tank-shaped symbol 6, there are arranged a mixer symbol 7 in which a mixer is designed and a hopper symbol 8 in which a concrete hopper is designed. The number of the truck to be loaded is displayed in the truck number display column 10 indicated by TNO. Similarly, the hopper design 8 displays the number of stored concrete, the amount stored, and the number of the truck to be loaded.
[0020]
A surface water correction field 11 for inputting and setting the surface water ratio of the aggregate is arranged at the lower center of the screen, and the surface water ratio measured in the portion indicated by S (sand) and G (gravel) is input and set. Then, moisture correction is performed on the blending value of the material based on the surface water ratio.
[0021]
Further, an outside air temperature input field 12 and a slump value input field 13 indicated as temperature and SL are arranged in the surface water correction field 11. As will be described in detail later, this is a column for inputting an outside air temperature for temperature correction or slump correction and a designated slump value at the site.
[0022]
In the upper right part of the screen, a column for setting the reservation of shipping contents is arranged. The column arranged at the upper level is the shipping content setting column 14 for shipping this time, and the column arranged at the lower level is the content to be shipped from the next time. Is a shipping content reservation column 15 for reserving. In the reservation field, the contents are sent and set from a shipping instruction device installed separately from the operation panel 1 or a device for instructing shipment called a shipment management device. In these columns 14 and 15, a number indicating a construction category indicated by CH, a composition number indicated by HNO, a shipment amount indicated by m ³ , and a loading truck number indicated by TNO are displayed.
[0023]
FIG. 3 shows a screen for pre-setting and registering the composition contents. An address field 16 is defined in the center of the screen, and each address field 16 has its own address. As an address, an address number indicated by ANO is set. When an arbitrary combination is added to the address and input, the information is stored and registered in the storage unit of the operation panel 1.
[0024]
For example, when registering a recipe in the upper left upper section of the address field 16, first enter 0000 at the ANO in the upper part composition registration field 17 on the screen, and then enter 0001 in the HNO field. In the name column, enter 210-10-040 and enter the quality of the concrete. Further, in the set value input field 18 on the left side of the screen, the standard composition value of each material corresponding to the composition number 0001 is input.
[0025]
The input column arranged at the right end of the screen is a specification input column 19 for inputting specifications for use in blending calculation, and is an input column for W / C indicating the water-cement ratio, and S / a indicating the fine aggregate ratio. There are an input column and an air amount input column, and a specific gravity setting column 20 for inputting the specific gravity of each aggregate and cement is arranged below the input column.
[0026]
Further, the operation panel 1 stores a known correction calculation formula for correcting the standard blending value based on the unit water amount shown in the following formula in the storage unit, and is configured so that the blending value can be corrected if necessary. Yes.
[0027]
1. Unit water quantity calculation formula W ′ = W × (1 +% of water increase / decrease rate ÷ 100) (1)
W ′: Corrected unit water amount W: Standard set unit water amount Unit cement amount calculation formula C ′ = (W ′ ÷ (W / C)) × 100 (2)
Cv = C ′ ÷ cement specific gravity (3)
C ′: corrected cement amount W / C: set water cement ratio Cv: cement volume Unit admixture amount calculation formula AD ′ = (C ′ ÷ 100) × AD (4)
AD ′: Corrected admixture amount AD: Standard setting blending value Unit fine aggregate amount calculation formula Av = (1000− (W ′ + Cv + (air amount% ÷ 100) × 1000)) (5)
Sv = Av × ((S / a%) ÷ 100) (6)
S '= Sv x specific gravity of fine aggregate (7)
Av: Total aggregate volume Sv: Fine aggregate volume S / a: Set fine aggregate ratio S ′: Modified fine aggregate amount Unit coarse aggregate amount calculation formula Gv = Av−Sv (8)
G ′ = Gv × rough aggregate specific gravity (9)
Gv: Coarse aggregate volume G ′: Corrected coarse aggregate amount Further, the operation panel 1 is configured to be able to automatically correct the blending value by the outside air temperature or the designated slump at the site, and is based on FIGS. The procedure will be described.
[0028]
FIGS. 6 to 7 are flow charts showing the procedure for correcting the blending value by the outside air temperature and the designated slump at the site, and S1 to S19 in the figure represent each step.
[0029]
First, before the plant is operated, the correlation between the outside air temperature and the specified slump value at the site and the rate of increase / decrease in the unit water volume is obtained from the quality control data of the concrete that has been tested and shipped, for example, as shown in FIGS. The temperature and on-site designated slump values are appropriately classified according to the environment and construction conditions, and an appropriate unit water amount increase / decrease rate with respect to the outside air temperature or on-site designated slump value is prepared as a temperature table and a slump table.
[0030]
Then, as an initial setting, the operation panel 1 first stores the increase / decrease rate of the unit water amount with respect to the outside air temperature based on the temperature table shown in FIG. 4 (S1), and then, on the basis of the slump table shown in FIG. The rate of increase / decrease of the unit water volume with respect to is input and stored (S2). It is determined whether or not to end the initial setting (S3), and if it is to be continued, the process returns to step S1 to continue the input. When the process ends, the process proceeds to END and ends.
[0031]
When there is a request for shipment of concrete, a construction number, a blending number, a shipment amount, and a track number are entered in the shipment content reservation column 15 on the main screen of FIG. If the shipping content setting column 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 is set in the shipping content setting field 14 (S4). If it is not set, the setting wait state is entered. If it is set, the standard composition value corresponding to the composition number to be shipped is read from the storage unit of the operation panel 1 (S5).
[0032]
Then whether it is instructed to perform temperature compensation, i.e. it is determined whether the outside air temperature is input to the outdoor air temperature input column 12 (S6), reads the ambient temperature if I is entered (S7) Subsequently, the rate of increase / decrease of the unit water amount corresponding to the outside air temperature read from the temperature table of FIG. 4 is selected (S8). If the selection of the unit water volume increase / decrease rate is completed from the temperature table or if there is no temperature correction instruction in step S6, that is, if the outside air temperature is not input in the outside air temperature input column 12 , the process proceeds to step S9. And then whether there is correction instruction by slump similar to the ambient temperature, i.e. in the slump value input field 13 there is an input field specified slump value it is determined whether or not (S9), the slump value if there is an input (S10), and an increase / decrease rate of the unit water amount corresponding to the slump value read from the slump table of FIG. 5 is selected (S11) .
[0033]
For example, the outside air temperature is 14 ° C., slump correction +0.5 der lever, the change rate of the unit water than the temperature table of FIG. 4 -0.5, the change rate of the unit water than slump table of Figure 5 +1. 0 is selected. And the increase / decrease rate of the final unit water amount is respectively added to be −0.5 + 1.0 = + 0.5%.
[0034]
When the increase / decrease rate of the unit water amount is selected, the corrected blending value is calculated by the blending calculation routine of the flowchart shown in FIG. 7 (S12) . 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 unit water amount increase / decrease rate is substituted into the unit water amount calculation equation (1) to calculate the corrected unit water amount W ′ (S14).
[0035]
The 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 divided by the specific gravity of the cement by the formula (3). The cement volume Cv is calculated.
[0036]
Further, the corrected cement amount C ′ is substituted into the unit admixture amount calculation formula (4) to calculate the corrected admixture amount AD ′ (S16).
[0037]
Next, the calculated total unit volume Av is calculated by substituting the calculated corrected unit water amount, cement volume, and set air amount into equation (5) of the unit fine aggregate amount calculation formula, The fine aggregate volume Sv is calculated by multiplying the aggregate volume Av by the set fine aggregate ratio S / a, and further, this fine aggregate volume Sv is divided by the fine aggregate specific gravity according to the equation (7), and the corrected fine bone The material amount S ′ is calculated (S17).
[0038]
Finally, the fine aggregate volume Sv is substituted into the formula (8) of the unit coarse aggregate amount calculation formula, and the coarse aggregate volume Gv is calculated by subtracting the fine aggregate volume Sv from the total aggregate volume Av. The modified coarse aggregate amount G ′ is calculated by dividing the coarse aggregate volume Gv by the coarse aggregate specific gravity from the equation (9) (S18).
[0039]
When the blended values of the respective materials thus corrected are calculated, they are replaced with the standard blended values as the modified blended values and displayed in the set measurement value display field 4 on the main screen.
[0040]
If there is no correction instruction based on the slump value in step S9, that is, if no on-site designated slump value is input in the slump value input field 13, the standard combination value is not corrected and is displayed in the set measurement value display field 4. (S19) . When the blending value is set on the screen, the process proceeds to END, the blending calculation and setting procedure is terminated, and the process proceeds to the next material measurement procedure and kneading procedure.
[0041]
Thus, by inputting the outside air temperature and the on-site designated slump value, the standard blending value of the operation panel is automatically corrected and set, and desired concrete can be shipped quickly.
[0042]
In the above embodiment, the unit water volume increase / decrease rate corresponding to each of the outside air temperature and the on-site designated slump value input to the operation panel is selected, and the final increase / decrease rate is determined by adding them. make corrections calculation again blended value based on rate of change, but the automatic blending value is replaced with the blending value of operation panel previously set has been described with reference to the flow chart of how correct Osamu, the outside air temperature or in the field specified since for either only that enter change correct blending value Osamu methods slump value is substantially the same as the only one of the flow is omitted omitted.
[0043]
【The invention's effect】
As described above, in the present invention, the unit water volume increase / decrease rate corresponding to the outside air temperature or the on-site specified slump value is obtained in advance, and the unit water amount increase / decrease rate and this rate of increase / decrease are used to modify the composition. 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 specified slump value input field 13 for correction by the outside air temperature or the on-site specified slump value. When there is an input, the unit water amount increase / decrease rate corresponding to it is selected, and the unit water amount increase / decrease rate is used to correct the formulation by the above formula correction formula. It is not necessary to always store and store the recipe corresponding to the on-site specified slump value, it is only necessary to store only the standard recipe, and the memory element can be configured with a small scale.
[0044]
In addition, the desired blending value is calculated and automatically set on the operation panel 1 simply by inputting the outside air temperature or the on-site specified slump value, so that it is easy to set the desired concrete blending even without a skilled operator. The concrete can be shipped smoothly and the productivity of the plant can be improved.
[Brief description of the drawings]
FIG. 1 is an external view of an operation panel that employs a blended value correction method of the present invention.
FIG. 2 is an explanatory diagram showing an example of a screen on the operation panel.
FIG. 3 is an explanatory diagram illustrating another screen example of the operation panel.
FIG. 4 is a temperature table showing the relationship between the outside air temperature and the rate of increase / decrease in unit water volume.
FIG. 5 is a slump table showing the relationship between the on-site designated slump value and the rate of increase / decrease in unit water volume.
FIG. 6 is a flowchart showing a procedure for correction formulation calculation.
FIG. 7 is a flowchart showing a procedure for correction formulation calculation.
[Explanation of sign]
DESCRIPTION OF SYMBOLS 1 ... Control panel 2 ... Control part 3 ... Display apparatus 4 ... Setting measurement value display column 12 ... Outside temperature input column 13 ... Slump value input column 17 ... Compounding registration column

Claims (3)

In the operation panel of the concrete production plant, the standard composition value for each concrete type, the temperature table for setting the temperature classification of the outside air temperature and the unit water volume increase / decrease rate corresponding to that temperature classification, and the temperature table selected from this temperature table A correction formula that corrects the composition value from the rate of increase / decrease in unit water volume is stored and stored, and when the concrete is shipped, the standard composition value to be shipped is read out and set on the operation panel, while the composition value is modified Load the outside air temperature that is input to the operation panel, the outside air temperature read by selecting the decrease of the unit water amount used in the correction calculation of the blending value against the temperature table to determine for, increase or decrease of the unit water The recipe value is calculated again using the correction formula using the ratio, and the corrected recipe value is reset on the operation panel to automatically correct the preset recipe value. Blending value correcting method in the concrete manufacturing plant, characterized in. In the operation panel of the concrete manufacturing plant, the standard blending value for each concrete type, the rate of increase / decrease of the unit water amount according to the slump value, and the correction formula for correcting the blending value from the rate of increase / decrease of the unit water amount are stored in advance. Place, at the time of shipment of concrete, while set in the control panel reads the standard formulation value to be shipped, read the slump value input to the operation panel in order to modify the blended value, it reads blended value from the slump value Determine the rate of increase / decrease in the unit water volume used for the correction calculation of the unit, calculate the blending value again by the correction formula using the rate of increase / decrease in the unit water volume, reset this corrected blending value on the operation panel and set it first A method for correcting a blending value in a concrete manufacturing plant, wherein the blending value is automatically modified. In the operation panel of the concrete production plant, the standard composition value for each type of concrete, the unit water amount increase / decrease rate according to the outside air temperature, the unit water amount increase / decrease rate according to the slump value, and the unit water amount increase / decrease rate are shown. a modified calculation equation for correcting stores stored, at the time of shipment of the concrete, while setting the control panel reads the standard formulation values to be shipped, the outside air that is input to the operation panel in order to modify the formulation values Read the temperature and slump value, determine the rate of increase / decrease of the unit water volume used for the correction calculation of the blend value from the read outside air temperature and slump value, and calculate the blend value again using the correction formula using the rate of increase / decrease of the unit water volume In the concrete manufacturing plant, the revised blending value is reset in the operation panel and the previously set blending value is automatically modified. .

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