JPH07227831A - Maintenance control device of ready-mixed concrete manufacturing plant - Google Patents

Abstract

PURPOSE:To connect a maintenance control computer to any operation panel of a ready-mixed concrete manufacturing plant. CONSTITUTION:An operation data collecting device 22 consisting of a main control part 23, an auxiliary memory part 24, an input part 25 and a transmission control part 22 is constituted independently of an operation panel 21. The operation data collecting device 22 and the operation panel 21 are connected to take the operation state or production data of a plant 20 in the operation data collecting device 22. The data stored and accumulated in the operation data collecting device 22 are taken in by the maintenance control computer 27 connected to the operation data collecting device 22 to grasp the maintenance period of the main devices and parts of the plant. The operation state of the plant 20 is appropriately outputted to the maintenance control computer so as to smoothly operate the plant 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a maintenance management device for managing the maintenance period of a ready-mixed concrete production plant for producing ready-mixed concrete.

[0002]

2. Description of the Related Art A ready-mixed concrete manufacturing plant for producing ready-mixed concrete comprises various devices such as a material storage yard, a material storage tank, a material measuring tank, a mixer, and a material conveying device. Since equipment and parts need to be worn out or damaged as the plant operates, they must be replaced, so in general, regular inspections are performed and a ledger for maintenance is created to maintain the equipment and parts. The maintenance time is managed. Recently, as disclosed in Japanese Utility Model Laid-Open No. 1-120507, in an asphalt plant that manufactures an asphalt mixture that is a road paving material, the cumulative shipment amount stored in the operation panel is stored in another computer, and the cumulative shipment amount is stored. There is one that estimates the maintenance time of each device and part of the plant based on the above.

[0003]

However, even in recent operation panels of ready-mixed concrete manufacturing plants, many of them are equipped with a large-capacity storage device. Some plants do not have large-capacity storage devices, and plants that use these conventional control panels cannot capture and store data that indicates the operating status of the plant or the production status of products, and You may not be able to use a computer for maintenance management of.

In view of the above points, the present invention relates to a ready-mixed concrete manufacturing plant in which operation information can be fetched even with a conventional operation panel that is not equipped with a large-capacity storage device and maintenance management of the plant can be performed. An object is to provide a maintenance management device.

[0005]

In order to achieve the above object, the present invention uses operating state storage means for storing the operating state of each equipment of a plant on an operation panel for controlling a ready-mixed concrete manufacturing plant and the use of various materials. Maintenance that connects to an operation information collecting device having a production management storage unit that stores production management data such as quantity and product shipment amount, and calculates and outputs a maintenance time for each device of the plant from the operating state and production management data. A management computer is connected to the operation information collecting device.

[0006]

According to the present invention, even if the operation panel does not have a large-capacity storage device or the operation panel does not have a storage device, the operation information collecting device is provided on the side of the operation panel to collect the operation information. The control signal exchanged between the plant and the operation panel and signals such as flow rate and pressure indicating the operating status can be fetched into the device, and the material measurement data and shipment quantity etc. calculated and output by the operation panel can be fetched and stored. . It is possible to import these data into a maintenance management computer installed separately, and calculate and output the maintenance time of each device from these operation information and the maintenance data for each device stored in advance in the maintenance management computer. it can. Further, by properly outputting the operation information of the plant acquired from the operation information collecting device by the maintenance management computer, the operating status of the plant can be accurately grasped and the plant can be operated smoothly.

[0007]

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

The ready-mixed concrete manufacturing plant is constructed as shown in FIG. 1a to 1e are aggregate hoppers that store the aggregates for each type, and various aggregates are cut out from the aggregate hopper gates 2a to 2e below the aggregate hoppers 1a to 1e,
The drawer conveyor 3 and the inclined conveyor 4 convey the aggregate storage bins 5a to 5e provided on the upper part of the plant,
The distribution chute 6 temporarily stores the individual aggregates in the aggregate storage bins 5a to 5e corresponding to the aggregate hoppers 1a to 1e. In the aggregate storage bins 5a-5e, the aggregate hopper gates 2a ...
2e is opened and closed, and necessary aggregates are cut out.

During the production of the fresh concrete, the measuring gates 8a to 8e of the aggregate storage bins 5a to 5e are opened based on the mixture of the fresh concrete, and each aggregate is weighed in each aggregate measuring tank 9. The cement stored in the cement storage tank 11 via the cement elevator 10 is weighed in the cement weighing tank 12, and the water and the admixture are weighed in the water weighing tank 13 and the admixture weighing tank 14, respectively, according to a predetermined order. Fresh concrete is manufactured by putting it into the mixer 15 and kneading it.

FIG. 1 shows the ready-mixed concrete manufacturing plant 2
0 shows a diagram provided with a maintenance management device, and an operation panel 21 for controlling the plant is connected to the plant 20. Reference numeral 22 denotes an operation information collecting device disposed on the side of the operation panel 21, which includes a main control unit 23 including a microcomputer, an auxiliary storage device 24 for storing a large amount of various data, and signals from the plant and the operation panel 21. And an input unit 25 for fetching data, and a transmission control unit 26 for sending the stored data to the outside.

As described above, the operation information collecting device 22 is constructed independently of the operation panel 21, and is connected to the operation panel 21 via the input unit 25 to collect and store the operating state of the plant and the production data. As a result, it is possible to install it on an operation panel with a small storage capacity that has been conventionally used or an operation panel without a storage device.

A maintenance management computer 27 includes a computer main body 28, a CRT display device 29,
It is composed of a keyboard 30 and a storage device 31, and is connected to the driving information collecting device 22 via a transmission control unit 26.

On the operation panel 21, the operator sets a predetermined shipment amount of ready-mixed concrete, and when the shipment operation is performed, the shipment amount and the kneading batch are output to the operation information collecting device 22 for each shipment, and the operation information collecting device 22. At 22, the data is cumulatively stored in the auxiliary storage device 24. Further, during this period, data such as flow rate, pressure, electric power, and material measured value indicating the operating state input from each device of the plant to the operation panel 21 is taken into the operation information collecting device 22 via the branch circuit of the operation panel 21 and stored. I am trying to do it.

When the one-day shipment is completed, the cumulative shipment amount and the cumulative kneading batch number stored in the operation information collecting device 22 are taken into the maintenance management computer 27, and are stored in the maintenance management computer 27 in advance. Each device or component to be added is added and stored.

These data can be displayed on the CRT display device 29 as maintenance information on the screen as shown in FIG. At this time, in the name column on the screen, the device name of the plant stored in advance by the initial operation is called and displayed, and in the column of the cumulative amount, the cumulative shipment amount or the cumulative batch number fetched from the operation information collecting device 22 is input by the keyboard. unit division Gu column by 30 operation (m ^3: cubic meters, t: ton,
b: Batch) can be switched to display each.

It is also possible to print out as shown in FIGS. Fig. 3 is a replacement list of parts. When the expected shipping amount is entered, the parts corresponding to the following formula: (cumulative shipping amount + expected shipping amount)> set shipping amount, that is, parts that exceed the set shipping amount by the expected shipping amount It is designed to be searched and output.

FIG. 4 is an inspection list of parts, and when the expected shipping amount is input, it corresponds to the following formula: (set shipping amount)> (cumulative shipping amount + estimated shipping amount)> (set shipping amount−inspected instruction amount) The parts to be checked, that is, the parts that have exceeded the inspection instruction amount due to the expected shipping amount and have not reached the set shipping amount, are searched and output.

When a part is repaired or replaced, if the accumulated shipment amount and the accumulated batch number in the accumulated amount column are cleared to zero, the accumulated shipment amount and accumulated amount are newly added from that point. The number of batches is added. At this time, if you enter the cumulative shipment amount and the cumulative batch number before zero-clearing as the set shipment amount in the setting amount column, it will become a guide for the next maintenance time and the value in the cumulative amount column will be added. As the difference from the setting amount column becomes smaller, the degree of reaching the maintenance time can be known.

Further, the operation information collecting device 2 is provided even during shipping.
Flow rate, pressure, electric energy, which indicates the operating state stored in 2.
The data such as the measured value of each material and the shipping amount can be taken into the maintenance management computer 27, and the operation status of the plant can be displayed on the screen as shown in FIG. On the screen display of the operating status of this plant, the shipment amount of the product at present, each usage amount of aggregate, cement, water, and admixture are displayed in a list. In addition to these data, it is also possible to display various kinds of data indicating the electric power amount and other fetched operating conditions.

The maintenance management computer 27 may be installed in the vicinity of the operation information collecting device 22, or may be installed in a distant place using a communication line or installed in a plurality of scattered plants. The information collecting device 22 can be centrally managed. Further, the maintenance management computer 27 is also used as a shipping management computer that automatically issues a shipping instruction and a shipping slip to the operation panel 21 when shipping ready-mixed concrete in a ready-mixed concrete manufacturing factory and operates on the back screen thereof. Alternatively, it may be installed independently.

[0021]

As described above, according to the present invention, the operation information collecting device 22 is constructed independently of the operation panel 21 and can be connected to any operation panel.
A maintenance management computer can now be connected to an operation panel with a small storage capacity as in the past. Therefore, the operation status and production data can be collected not only from the new plant and operation panel but also from the conventional plant and operation panel, and can be loaded into the maintenance management computer 27, and the plant can be configured based on the cumulative shipment amount and the cumulative batch number of the plant. It has become possible to widely carry out maintenance for easily grasping the maintenance time of each device and part of the plant by a method of additionally storing the cumulative shipment amount etc. for each component part of the main device. Further, the operation status of the plant can be appropriately displayed on the screen by the maintenance management computer 27, and the plant can be operated more smoothly.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an example of a configuration of a maintenance management device of the present invention.

FIG. 2 is an explanatory diagram showing a screen display example of a maintenance management computer.

FIG. 3 is an explanatory diagram illustrating a print output example of a maintenance management computer.

FIG. 4 is an explanatory diagram illustrating a print output example of a maintenance management computer.

FIG. 5 is an explanatory diagram showing a screen display example of a maintenance management computer.

FIG. 6 is an explanatory diagram showing a schematic configuration of a ready-mixed concrete manufacturing plant.

[Explanation of symbols]

20 ... Ready-mixed concrete manufacturing plant 21 ... Operation panel 22 ... Operation information collecting device 23 ... Main control unit 24 ... Auxiliary storage device 25 ... Input unit 26 ... Transmission control unit 27 ... Maintenance management computer 28 ... Computer body 29 ... CRT display device 30 ... Keyboard 31 ... Storage device

Claims (1)

[Claims] Claims: 1. An operation panel for controlling and operating a ready-mixed concrete production plant, an operation state storage means for storing the operation state of each equipment of the plant, and a production control for storing production control data such as usage amount of various materials and product shipment amount. The operation information collecting device having a storage means is connected, and a maintenance management computer that calculates and outputs a maintenance time for each device of the plant from the operating state and production management data is connected to the operation information collecting device. Maintenance management equipment for ready-mixed concrete manufacturing plant.