The management system of slab storehouse for real-time logistics operation

The management system of slab storehouse for real-time logistics operation
Wisco 2250mm Hot Rolling plant is the national "XV" key construction projects, the total investment of 4 billion yuan, plans an annual output of 3.5 million tons of high-quality steel rolls. The 2250mm hot rolling mill slab Storehouse is the production buffer link of hot rolling process and steelmaking process, and it is an important production logistics center of Wisco, and the daily turnover and stacking operation amount is as high as 30,000 tons. The slab storehouse mainly receives the continuous casting slab of Wisco's third steelmaking plant, implements the slab storage treatment, and implements the slab out of stock processing according to the rolling order in the rolling plan. There are many kinds of slabs, and the slab and the user order contract correspond to each other, therefore, it is necessary to manage the single slab to increase the difficulty of management of the Slab library.
Figure one is the sketch map of 2250mm hot rolling mill slab.



Slab Library is composed of four-span, each span is equipped with a crane, the crane and the ground transport roller, which constitute the access to the library transport system. The Slab Library has more than 100 locations, each of which can be stacked up to 12 pieces of slab. In order to realize the real-time management of the production logistics operation of slab storehouse, to ensure the production rhythm of the slab, the slab storehouse is equipped with the Advanced small Computer Management system, the transportation roller is controlled by 2 plc directly, and the operation room of the crane is equipped with the computer terminal of Operation Instruction Management. process See Figure 2.




system function Design
According to the production process, plane layout, mechanical equipment and advanced management mode of slab storehouse, the system function design is designed with reference to the advanced management experience at home and abroad, the main functions are as follows:
1, Slab warehouse operation Management
According to the information of the stock and the actual condition of the slab storehouse, the location of the slab stacking is reasonably selected, directing and coordinating the operation of slab storage; According to the need of the slab information and the actual condition of the slab storehouse, the stack position of the inverted stack slab is selected, directing and coordinating the operation of the slab stacking; According to the information of the stock in the rolling plan and the information of the slab storing the stack position, Work out the warehouse Operation plan, command and coordinate the slab out of stock.
2, slab storage organization and management
The physical library area of the slab library is mapped to the logical storehouse area in the Computer Management system, which realizes the real-time tracking of slab information and ensures the unification of logistics and information flow, which has the function of change, modification and deletion.
3, the Slab Storehouse Reserve information revision
In order to prevent the information in the slab library from appearing wrong or wrong, the system has a variety of information changes, modification and deletion functions, but the function has a certain authority to prevent abuse and misuse. When communication with the three-steelmaking computer system fails, the artificial input of slab information, which is a standby function.
4. Track and control of slab storehouse roll path
receiving the corresponding information of the real-time slab and the roller track of the PLC system, and assisting the management personnel of the slab storehouse to manage the slab storehouse (warehousing, out of stock, stacking). And the information is sent to the computer terminal of each crane, the crane operator according to this information, determine the time of the slab out of the library, effectively prevent the order error.
5, Slab Library information inquiry
In order to facilitate the management of slab Library, provide various query functions of slab and location.
6, Slab Library class, daily
For the convenience of Slab Library management, display and print Slab Library class, daily.
7, Slab Library and other systems of communication management
It provides the management system of slab storehouse and four-level computer system (production management System), two-level computer system of rolling line, slab-Storehouse roll-track control systems, overhead crane wireless terminal system, etc. According to different situations, the point-to-point TCP/IP message communication mode, database sharing mode and ODB mode are adopted to realize the real-time data communication between different computer hardware systems.
Real-time logistics operations management
Slab Warehouse Logistics operations are: slab storage, slab out of the library and slab inverted stack. In which the slab storage and slab out of the library must have real-time management function.
1, Slab storage
When the slab reaches the receiving point (top), at the same time receiving the slab information from the three-steel-making computer system, the Slab warehouse operators check the consistency of the slab and the information, the computer will choose the reasonable stacking location according to the information of the slab and the distribution of slab storehouse, and transmit the instruction to the roller control computer and the crane operation Room Computer Transport Roller According to the instructions of the incoming slab conveying to the corresponding cross, the crane according to the instructions to the storage slab from the transport roller hanging to the selected location. The Computer Management system automatically modifies the location information according to the completion information of the slab storage operation sent by the crane operator. The management and processing process of the slab storage operations See Figure 3.
2, slab out of the library
Receive the rolling plan (out of the library plan) sent by the company management computer system, slab warehouse operators to check the information of the slab and rolling plan is consistent, Computer Management system will be based on the information of slab stacking and rolling plan information, work out the plan, and transfer instructions to the Crane operating room computer terminal. Crane operators According to the operation plan and out of the library roller transport information will be suspended from the slab to the library roll. After the work of the slab out of stock is completed, the operation personnel of the crane send out the information of the work of the blank, and the Computer Management system automatically modifies the location information. Sheet stock out of the work management process flow see Figure 4.
The management system of slab storehouse, which is oriented to real-time logistics operation, realizes the management of slab storehouse floor, and ensures the rhythm of the slab storehouse in and out of the library, only the managers have reduced 80% and achieved remarkable economic benefit. At the same time for enterprises to reduce inventory, shorten the production cycle, improve customer satisfaction rate provides the necessary technical support and management tools.

The end!