JPH01158093A - Device for preparing operation schedule of coke oven - Google Patents

Abstract

PURPOSE:To provide the title device capable of preserving the previous operation schedule, deciding the first operating oven in the present work, preparing a current operation schedule and the standard schedule, carrying out comparison and correction thereof, readily and surely producing coke of constant quality. CONSTITUTION:A schedule is prepared using a device having a means 17 for preserving the previous operation schedule, another means 11 for deciding the first operating oven in the present work from the preserved previous operation schedule, another means 12 for preparing an operation schedule for the number of present operating ovens from the decided first operating oven in the same order as that of previous operation schedule, another means 13 for making the standard schedule for the number of operating ovens from the decided first oven at a prescribed interval in order and the other means 15 for comparing the prepared operation schedule with the standard operation schedule, drawing operating ovens in an order different from the standard operation schedule and carrying out correction so that the order may be the same as the standard operation schedule. Thereby the coke ovens are operated to provide coke of good uniformity.

Description

DETAILED DESCRIPTION OF THE INVENTION [Structure of the Invention] (Industrial Application Field) The present invention relates to a device for creating a work schedule for a coke oven.

(Conventional technology) FIG. 3 shows a conventional coke oven control device.

The coke combustion chamber 1 is usually called a "kiln" or "kiln chamber", and in this example, 100 kilns are arranged, and the 8 kilns 1 include numbers No. 001 to No. 10 in order from the left.
They are numbered up to 0.

8 The kiln 1 is equipped with a combustion detection sensor 2,
Detection signals from these sensors 2 are supplied to a combustion management calculator 3.

In the combustion management calculation B13, each detection signal of the sensor 2 is inputted to perform combustion management of the kiln 1, and the control signal is supplied to the schedule device 4.

The schedule device 4 determines the schedule of the mobile device based on the control signal supplied from the calculation 113 and supplies the schedule signal to the mobile device control device.

The mobile device control device 5 then controls the mobile device 6 according to the supplied schedule signal.

Here, as shown in FIG. 4, the mobile device 6 is composed of an extruder 116A for extruding coke from the kiln 1, a fire extinguisher 6B for receiving the extruded coke, a coal feeding type 6C for inserting coal into the kiln 1, etc. It is something that

The quality of coke refining depends on the combustion time of the coal. For this reason, the combustion management computer 3 executes a predictive calculation of the ideal combustion time, determines the combustion management times for the eight kilns 1, and determines the work schedule for the movement 116.

The determined work schedule, that is, the number of the work kiln, is transmitted to the schedule device 4, and this schedule device @4
outputs work commands to the mobile device control device 5 in the order of the input work kiln numbers. Then, the mobile device control device 5 executes control of the mobile device 6 according to the work command.

(Problems to be Solved by the Invention) However, in the conventional coke oven control device described above, the work schedule is determined by the detection signal of the combustion detection sensor 2 and the combustion management computer 3 that inputs this detection signal. Therefore, if the sensor 2 or computer 3 breaks down, the work schedule cannot be determined.

In this case, since the work schedule is determined and managed by the operator, operational errors and calculation errors are likely to occur, and as a result, there is a problem that accurate combustion control cannot be performed and the quality of coke deteriorates.

The purpose of this invention is to
Another object of the present invention is to provide a work schedule creation device for a coke oven that can determine a reliable work schedule without relying on the operator's judgment.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a means for saving the previous work schedule, and a method for determining the current leading work kiln from the saved previous work schedule. a means for creating a work schedule for the current number of work kilns starting from the found first work kiln in the same order as the previous work schedule, and a means for creating a work schedule for the current number of work kilns starting from the found first work kiln at a predetermined interval. A means for creating a standard schedule for each minute, comparing the created work schedule with the standard/standard work schedule, extracting the work kilns in a different order from the standard work schedule, and making the work kilns in the same order as the standard work schedule. and a means for correcting.

(Operation) In this invention, the current leading working kiln is determined from the previous working schedule, and work schedules for the number of current working kilns are created from the leading working kiln in the same order as the previous working schedule.

Further, standard work schedules for the number of working kilns are created sequentially from the first working kiln, for example every five kilns. The current work schedule is then modified to match the created standard work schedule. Therefore, a reliable work schedule can be created without operator operations or complicated calculations.

(Embodiment) FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

As shown in the figure, the schedule creation device 7 includes a CRT8
and an input/output section 10 that serves as an interface with the keyboard 9
, the current day's work schedule schedule creation section 11 , the current day's work schedule storage section 12 , the standard work pattern creation section 13 , the standard work schedule storage section 14 , the work schedule correction section 15 , the work schedule storage section 16 , The work record schedule storage section 17 is also provided.

Also, a changeover switch 18 for selectively switching between the work schedule created by the combustion management computer 3 and the work schedule stored in the work schedule storage section 16.
Any work schedule selected by the changeover switch 18 is supplied to the mobile device control device 5 as described above.

The CRT 8 is a display device for informing the operator of the status of the work schedule managed or maintained by the schedule creation device 7.

The keyboard 9 is used to input operating rates and the like to the work schedule creation device 7.

The work schedule schedule creation unit 11 for the current day calculates the number of kilns to be worked per day from the operating rate per day inputted by the operator from the keyboard 9, and calculates the number of kilns to be worked on per day in the same order as the work performance schedule in which the work was performed in the final window for the previous day. Next, create a work schedule for the number of kilns to be worked on.

The current day's work schedule storage unit 12 is a data file that stores created work schedules, and is composed of an auxiliary storage device such as a magnetic disk or an optical disk.

The standard work pattern creation unit 13 determines the first scheduled work kiln for the current day from the previous day's work performance results, and allocates subsequent scheduled work kilns in order from this scheduled work kiln at intervals of five kilns. , determine standard work patterns for the number of working kilns for one day.

The standard work schedule storage unit 14 is a data file that stores the standard work pattern determined as described above, and is constituted by an auxiliary storage device such as a magnetic disk or an optical disk.

The work schedule correction unit 15 has a function of correcting the created work schedule for the day using a standard work schedule pattern, and as described later, the work schedule correction unit 15 corrects the work schedule for the day based on the changeable amount per unit time determined at the time of system construction. and the standard work pattern schedule, and as a result, the work of the work kilns with different work schedules is controlled to be faster by the changeable amount. If the work schedule is faster than the standard work pattern, the work schedule is corrected to return to the standard work pattern.The schedule is corrected in this way, and the corrected work schedule is determined as the actual work schedule.

The work schedule storage unit 16 is a data file that stores the work schedule determined as described above, and is constituted by an auxiliary storage device such as a magnetic disk or an optical disk.

When either the work schedule created as described above or the work schedule created by the combustion management computer 3 is executed, the work performance schedule storage unit 17 stores the executed work schedule as a result. This is a data file to be stored.

Next, the operation of this embodiment will be explained according to the flowchart shown in FIG.

Now, if the control signal from the combustion management computer 3 is stopped for some reason, the changeover switch 13 is switched to the work schedule storage section 12 side, and the schedule creation process by the schedule creation device 7 is executed as follows. Ru.

First, the operator inputs the operating rate of the coke oven from the keyboard 9. The operating rate here is the amount of coke produced per unit time, and is usually calculated based on the amount of production per day.
The case where 8 kilns produce once a day is considered 100%. This operating rate is expressed by the following equation (1).

Operating rate = Number of working kilns per day / Total number of kilns x 100 (%) ...... (1) When the operating rate is input, the number of working kilns per unit time (per day in this example) is It is determined by the following equation (2) (step 201).

Number of working kilns = operating rate x total number of kilns ・・・・・・(2)
Next, the first work kiln for the current day is determined from the previous day's work schedule stored in the work performance schedule storage unit 17, and from this work kiln, the work kilns determined by equation (2) are executed in the same order as the work performed the previous day. A work schedule of several minutes is created following the last kiln of the previous day (step 202). The processes in steps 201 and 202 described above are created by the work schedule preparation unit 11 for the current day.

The work schedule created in this way is stored in the current day's work schedule storage section 12.

Next, the standard work pattern for the current day is created by the standard work pattern creation section 9. This standard work pattern is a schedule for improving the work efficiency of the mobile machine and the combustion efficiency of the coke oven, and can be determined as follows.

From the work schedule for the previous day stored in the work performance schedule storage unit 17, the first work kiln for the current day is found in the same way as found in step 202, and from this work kiln, 5
Work kilns are allocated at intervals corresponding to the number of kilns, and a work schedule for the number of work kilns determined by equation (2) is created.

For example, if the beginning is kiln number 20, kiln number 2
Create them with an interval of 5 kilns like 0.25°30.35... The reason for choosing the working kilns with an interval of five kilns is because the combustion efficiency is markedly different when the adjacent kiln is in operation and when it is not in use, and the quality of coke differs depending on the temperature change. This is to avoid.

Next, the work schedule for the day created in step 202 is modified as follows based on the standard work pattern created in step 203 (step 204).
.

That is, in order to maintain the quality of coke, it is necessary to maintain a constant combustion time in a coke oven.

However, if the work schedule for the day created in step 202 is to be corrected to the standard work pattern at once, the combustion time of the coke oven will differ depending on the number of lights. For this reason, it is necessary to determine the order changeable per day at the time of system construction. This changeable amount is proportional to the production amount per unit time, and is determined by the following equation (3).

Amount that can be changed per unit time = Operating rate × Total number of kilns × × (3) Here...
X takes a value of 100% from O and is the combustion time changeable amount determined at the time of system construction.

Therefore, the work schedule of the day and the standard work schedule are sequentially compared for each kiln, and the work kilns that differ from the standard work schedule are extracted, and the work order of those kilns is (3).
Changes will be made so that the work will be done faster by the number of kilns determined by the formula.

At this time, if the work order has been moved earlier than the standard work schedule, the work order is changed to the same as the standard work schedule. Through this process, the work order of the kiln that differs from the standard work schedule gradually approaches the work order of the standard work schedule so as not to affect the combustion time that affects coke refining quality, and eventually the work order of the kiln that differs from the standard work schedule will be the same. This can be used as a work schedule.

Up)! The work schedule created as in i is supplied to the mobile device control device 5 and stored in the work performance schedule storage section 17.

The mobile machine control device 5 then controls the work machine 6 according to the supplied work schedule.

[Effect of the invention 1 As explained above, according to the present invention, even if the combustion management computer etc. breaks down, the operator does not have to perform complicated calculations and can easily and reliably create a work schedule. Can be done. As a result, it becomes possible to maintain the quality of refined coke constant.

[Brief explanation of the drawing]

FIG. 1 is a 7076 diagram showing the configuration of an embodiment of the present invention;
Figure 2 is a flowchart for explaining the operation of the same embodiment;
FIG. 4 is a block diagram showing the configuration of a conventional example, and FIG. 4 is a perspective view showing the configuration of a mobile device. 1... Coke combustion chamber (kiln) 3... Combustion management calculator 7... Schedule creation device 11... Today's work schedule schedule creation unit 12...
- Today's work schedule storage section 13...Standard work pattern creation section 14...Standard work schedule storage section 15...Work schedule correction section 16...Work schedule storage section

Claims (3)

[Claims] (1) A means for saving the previous work schedule, a means for determining the current first working kiln from the saved previous working schedule, and a means for calculating the current working kiln from the determined first working kiln in the same order as the previous work schedule. Means for creating a work schedule of several minutes; Means for creating a standard schedule for the number of work kilns at predetermined intervals starting from the determined first work kiln; and Comparison of the created work schedule and the standard work schedule. A coke oven work schedule creation device, comprising: a means for extracting work ovens in a different order from the standard work schedule and correcting them so that they are in the same order as the standard work schedule. (2) The coke oven work schedule creation device according to claim 1, wherein the number of working ovens is calculated from an operating rate input by an operator. (3) The coke oven work schedule creation device according to claim 1, wherein the modification is performed based on a preset amount of changeable order per unit time.