Method and system for managing raw materials in steelmaking area

Abstract

The invention provides a steel-making area raw material management method and system, and the method comprises the steps: S1, transmitting a material demand application according to a production plan; s2, raw materials are supplied according to the material requirement application, and raw material information is collected; s3, receiving the raw materials according to the raw material information, and classifying the raw materials to corresponding storage sites; s4, the raw materials are dispatched to a stock bin according to actual material demands, and feeding information, consumption information and inventory information of the raw materials are obtained; and S5, based on the feeding information, the consumption information and the inventory information, the inventory of the raw materials in each stock bin is calculated, and cost accounting is carried out. The management method of the raw materials in the steelmaking area is applied to an information system by adopting a computer digitization / informatization means, so that the problem that the management of the raw materials in the steelmaking area is not refined enough is solved, and the related targets of accurately controlling the stock of the raw materials in the steelmaking area and the like are achieved.

Description

Technical Field

[0001] The present invention belongs to, specifically, and more specifically relates to, a steelmaking area raw material management method implemented by computer program. Background Art

[0002] As the demand for steel continues to grow, the production scale of steel companies continues to expand, which puts higher requirements on the demand and management of raw materials. The raw materials required for steelmaking mainly include iron ore, scrap steel, alloy elements, etc. The quality, supply and cost control of these materials directly affect the production efficiency and product quality of steelmaking. Especially in the context of increasingly stringent environmental regulations, steel companies must not only improve production efficiency, but also achieve green production and reduce the impact on the environment.

[0003] At present, the raw material management in the steelmaking area has achieved a high level of automation and informatization. Enterprises use advanced supply chain management systems to monitor and optimize the procurement, storage, transportation and use of raw materials. By introducing Internet of Things technology, real-time tracking and inventory management of raw materials are realized, which greatly improves the efficiency of raw material use and cost control. In addition, some enterprises have also adopted intelligent steelmaking systems, which use big data analysis and artificial intelligence technology to accurately predict and optimize the use of raw materials in the steelmaking process, further improving production efficiency and product quality.

[0004] However, there are some difficulties in the raw material management technology in the steelmaking area. First, the uncertainty of raw material supply is an important issue. Since the supply of raw materials such as iron ore and scrap steel is affected by many factors, such as market price fluctuations and policy adjustments, the supply of raw materials is unstable, which increases the operational risks of enterprises. Secondly, the quality control of raw materials is also a challenge. The quality of raw materials in different batches may vary. If there is a lack of effective quality control measures, it will directly affect the production efficiency and product quality of steelmaking. In addition, the increasingly stringent environmental protection regulations have also put forward higher requirements for raw material management. Enterprises need to continuously explore new technical means and management models to achieve greener and more efficient steelmaking production.

[0005] At present, the existing technical solutions related to the steelmaking area focus on on-site scheduling or related areas such as alloy adding and iron-steel ratio control during the production process of specific equipment such as converters, but neglect the full life cycle management of raw materials in the steelmaking area, such as purchase, sales and inventory. This problem needs to be solved urgently.

[0006] For example, patent document CN118308557A discloses an alloying operation control method and system for a converter steelmaking process, comprising the following steps: after the smelting furnace starts, in the production plan issued by the three-level system, the steel type corresponding to the current furnace is identified, and the alloying target composition system is determined according to the steel type; based on the types of elements contained in the alloying target composition system, the alloy additives contained in the target alloy formula are determined from the alloy additive substitute library, and based on the target content values ​​of each element contained in the alloying target composition system, the amount of each alloy additive contained in the target alloy formula is calculated; and a storage bin is determined according to the target alloy formula, and the material is automatically delivered to the top bin of the converter. Summary of the invention

[0007] In view of the defects in the prior art, the object of the present invention is to provide a steelmaking area raw material management method and system.

[0008] A method for managing raw materials in a steelmaking area according to the present invention comprises:

[0009] Step S1: Issue a material request according to the production plan;

[0010] Step S2: supplying raw materials according to the material application and collecting raw material information;

[0011] Step S3: According to the raw material information, the raw materials are collected and classified into corresponding storage yards;

[0012] Step S4: dispatching the raw materials to the silo according to the actual material demand, and obtaining the feed information, consumption information and inventory information of the raw materials;

[0013] Step S5: Based on the feed information, consumption information and inventory information, the inventory of raw materials in each of the silos is calculated and the cost is accounted for.

[0014] Preferably, in step S2, the method of supplying raw materials includes: direct supply method, distribution method and allocation method;

[0015] The raw material information includes: scrap steel, alloy, auxiliary materials and limestone.

[0016] Preferably, in step S3, the raw materials are collected and classified into corresponding storage yards, and the steps include:

[0017] Step S3.1: Based on the raw material information, a supply history record is formed; the supply history record is used to clarify the starting location, target location and type of the raw material;

[0018] Step S3.2: Counting the weight information of the supply history record; the weight information includes: gross weight, tare weight and net weight;

[0019] Step S3.3: Analyze the composition information of the raw materials; determine whether the composition information and the weight information are consistent with the actual objects corresponding to the supply history record; if the result is yes, collect the raw materials and classify them into the corresponding warehouse; if the result is no, recheck and correct.

[0020] Preferably, in step S4, the process of dispatching the raw materials to the silo includes:

[0021] The silo includes: a low-level silo and a high-level silo;

[0022] The low-level silo is a storage device used to store the raw materials required in the steelmaking process;

[0023] The high-level silo is a storage device, and its physical location is higher than the low-level silo;

[0024] Loading step: According to the demand for corresponding raw materials in the steelmaking production plan, determine whether the raw material reserve in the high-level silo is less than the raw material quantity in the production plan. If the result is yes, the low-level silo will load the material to the high-level silo; if the result is no, no processing will be done;

[0025] Material return step: determine whether the raw material reserve in the silo is higher than the planned production raw material quantity or whether part of the raw material reserve in the silo needs to be emptied to store other raw materials. If the result is yes, the high-level silo returns the material to the low-level silo; if the result is no, no processing is done.

[0026] Preferably, in step S5, the mathematical expression of the inventory is:

[0027] Ending inventory = beginning inventory + input quantity – consumption quantity

[0028] Among them, the ending inventory refers to the raw material inventory at the end of the period; the beginning inventory refers to the raw material inventory at the beginning of the period; the feed quantity refers to the feed quantity of raw materials within the specified period; the consumption refers to the consumption of raw materials within the specified period;

[0029] The cost accounting mentioned above refers to the collection of business data.

[0030] A steelmaking area raw material management system provided by the present invention is characterized by comprising:

[0031] Module M1: Issue material request according to production plan;

[0032] Module M2: supply raw materials according to the material application and collect raw material information;

[0033] Module M3: Collect the raw materials and classify them into corresponding warehouses according to the raw material information;

[0034] Module M4: dispatch the raw materials to the silo according to the actual material demand, and obtain the feed information, consumption information and inventory information of the raw materials;

[0035] Module M5: Based on the feed information, consumption information and inventory information, calculate the inventory of raw materials in each of the silos and perform cost accounting.

[0036] Preferably, in module M2, the methods of supplying raw materials include: direct supply, distribution and allocation;

[0037] The raw material information includes: scrap steel, alloy, auxiliary materials and limestone.

[0038] Preferably, in the module M3, the raw materials are collected and sorted into corresponding storage yards, and the steps include:

[0039] Module M3.1: Based on the raw material information, a supply history record is formed; the supply history record is used to clarify the starting point, target point and type of the raw material;

[0040] Module M3.2: Count the weight information of the supply history record; the weight information includes: gross weight, tare weight and net weight;

[0041] Module M3.3: Analyze the composition information of the raw materials; determine whether the composition information and the weight information are consistent with the actual objects corresponding to the supply history record; if the result is yes, collect the raw materials and classify them into the corresponding warehouse; if the result is no, recheck and correct.

[0042] Preferably, in the module M4, the process of dispatching the raw materials to the silo includes:

[0043] The silo includes: a low-level silo and a high-level silo;

[0044] The low-level silo is a storage device used to store the raw materials required in the steelmaking process;

[0045] The high-level silo is a storage device, and its physical location is higher than the low-level silo;

[0046] Loading step: According to the demand for corresponding raw materials in the steelmaking production plan, determine whether the raw material reserve in the high-level silo is less than the raw material quantity in the production plan. If the result is yes, the low-level silo will load the material to the high-level silo; if the result is no, no processing will be done;

[0047] Material return step: determine whether the raw material reserve in the silo is higher than the planned production raw material quantity or whether part of the raw material reserve in the silo needs to be emptied to store other raw materials. If the result is yes, the high-level silo returns the material to the low-level silo; if the result is no, no processing is done.

[0048] Preferably, in the module M5, the mathematical expression of the inventory is:

[0049] Ending inventory = beginning inventory + input quantity – consumption quantity

[0050] Among them, the ending inventory refers to the raw material inventory at the end of the period; the beginning inventory refers to the raw material inventory at the beginning of the period; the feed quantity refers to the feed quantity of raw materials within the specified period; the consumption refers to the consumption of raw materials within the specified period;

[0051] The cost accounting mentioned above refers to the collection of business data.

[0052] Compared with the prior art, the present invention has the following beneficial effects:

[0053] 1. The present invention adopts computer digitization / informatization means to apply the management method of raw materials in the steelmaking area to the information system, thereby solving the problem of insufficient refinement of raw material management in the steelmaking area and achieving the goal of accurately controlling the raw material inventory in the steelmaking area.

[0054] 2. The methods of supplying raw materials of the present invention include direct supply, distribution and allocation, which improve the flexibility and operability of feeding materials in the corresponding management area of ​​the steel plant.

[0055] 3. The present invention can execute the loading step or the returning step according to the demand for raw materials corresponding to the steelmaking production plan, effectively adjust the inventory in the silo, and realize the full life cycle management of the purchase, sale and storage of raw materials in the steelmaking area. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0057] Figure 1 A schematic diagram of the raw material management process provided by the present invention;

[0058] Figure 2 This is a schematic diagram for comparing the functional processes provided by the present invention. DETAILED DESCRIPTION

[0059] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0060] The refined raw material management in the steelmaking area creates greater economic value for the steel plant's accounting operations.

[0061] The present invention provides a solution for managing raw materials in the steelmaking area by means of computer digitization / informatization, realizing the full life cycle management of raw materials such as scrap steel, alloys, auxiliary materials, lime, etc., including self-circulation, distribution, loading from low-level silos to high-level silos, allocation, direct supply, and other business-related purchase, sales, and inventory.

[0062] According to a steelmaking area raw material management method provided by the present invention, the process of its software system includes:

[0063] Step S1: Issue a material request according to the production plan;

[0064] Step S2: supplying raw materials according to the material application and collecting raw material information;

[0065] Step S3: According to the raw material information, the raw materials are collected and classified into corresponding storage yards;

[0066] Step S4: dispatching the raw materials to the silo according to the actual material demand, and obtaining the feed information, consumption information and inventory information of the raw materials;

[0067] Step S5: Based on the feed information, consumption information and inventory information, the inventory of raw materials in each of the silos is calculated and the cost is accounted for.

[0068] Specifically, in step S2, the methods of supplying raw materials include: direct supply, distribution and allocation;

[0069] The direct supply method refers to a material supply method in which raw materials are purchased from outside and are not piled up on the ground in areas other than the steel mill management area, but are directly transported to the material requesting unit at one time; the material requesting unit is the management area corresponding to the steel mill;

[0070] The distribution method refers to the material supply method in which the raw materials have been purchased from the sales unit and transported to the designated stacking location in the non-steelmaking management area of ​​the corresponding steel plant where the steel plant is located, and then transported from the stacking location in the non-steelmaking management area designated by the steel plant to the material requesting unit.

[0071] The transfer method is a material supply method in which the raw materials are already in a certain stacking area of ​​the material requesting unit and are transported from stacking area A to the raw material use area, such as area B.

[0072] The raw material information includes: scrap steel, alloy, auxiliary materials and limestone.

[0073] Specifically, in step S3, according to the raw material information, the process of the software system includes:

[0074] Step S3.1: Identify the starting and target locations of the raw materials, identify the types of raw materials, and form a supply history record;

[0075] Step S3.2: Measure the gross weight, tare weight and net weight of the supply record through a measuring system;

[0076] Step S3.3: Analyze the ingredient information of this batch of raw materials through the inspection and testing system;

[0077] Step S3.4: Confirm the consistency between the physical object and the information of the supply record, and clarify the accuracy of the weight, composition, and receiving location. Specifically, this operation is performed on the software system through human-computer interaction.

[0078] Specifically, in step S4, the process of dispatching the raw materials to the silo includes:

[0079] Loading step: According to the demand for corresponding raw materials in the steelmaking production plan, determine whether the raw material reserve in the high-level silo is less than the raw material quantity in the production plan. If the result is yes, the low-level silo will load the material to the high-level silo; if the result is no, no processing will be done;

[0080] The low-level silo is a storage device located in a lower physical area of ​​steelmaking raw materials, mainly used to store raw materials required in the steelmaking process. The high-level silo is a storage device located in a higher physical area of ​​steelmaking raw materials, mainly used to store raw materials required in the steelmaking process, such as ore, coke, coal, limestone, ferroalloys, etc.

[0081] Material return step: determine whether the raw material reserve in the silo is higher than the planned production raw material quantity or whether certain types of raw materials need to be emptied to stack other raw materials. If the result is yes, the high-level silo returns materials to the low-level silo; if the result is no, no processing will be done.

[0082] In step S5, based on the feed information, consumption information and inventory information, the inventory of raw materials in each of the silos is calculated and the cost is written off; wherein the inventory is calculated specifically through the warehouse purchase and sales calculation method, and its mathematical expression is:

[0083] Ending inventory = beginning inventory + input quantity – consumption quantity

[0084] Among them, the ending inventory refers to the raw material inventory at the end of the period; the beginning inventory refers to the raw material inventory at the beginning of the period; the feed quantity refers to the feed quantity of raw materials within the specified period; the consumption refers to the consumption of raw materials within the specified period;

[0085] In other words, the beginning inventory represents the inventory of each raw material at the beginning of the period, the input quantity refers to the input quantity of each raw material within a certain period of time, for example, within a month; the consumption quantity refers to the usage of each raw material within a certain period of time, for example, within a month;

[0086] Cost accounting is a collection of business data for the Finance Department to calculate the cost of each type of raw material and various types of operating tasks in a certain period of time. Based on each business data, combined with the cost center and cost accounting rules, it realizes the steps of collecting business data for the purchase and consumption process.

[0087] Figure 2 The limestone feeding function shown in the figure, because the plant adopts a relatively simple process for limestone and does not fully adopt the full life cycle management method similar to scrap steel, alloy, and auxiliary materials described in the present invention, the description starts with limestone feeding.

[0088] In other words, the overall process of a steelmaking area raw material management method provided by the present invention includes:

[0089] Step 1: Maintain the raw material / material master data standard library and silo annotation library, and clearly define the corresponding attributes of the raw materials and the areas where the raw materials are located in the corresponding dimensions of management to support the development of the entire raw material management process.

[0090] Step 2: Online or offline material request application: Steelmaking area personnel initiate online or offline material request application to the raw material supplier based on the production plan and the real-time dynamic inventory status of the silo.

[0091] Step 3: Raw material supply, including direct supply, distribution and transfer. The raw material supply unit provides a process for supplying various raw materials to the steelmaking area according to different business scenarios based on the different ways and locations of raw material supply; including direct purchase, distribution after purchase to the corresponding unit in the factory, and transfer of raw materials from different areas of the same unit.

[0092] Step 4: Raw material transportation and raw material measurement refers to the supply of raw materials to the steelmaking area based on the raw material properties and raw material transportation methods; and measurement and weighing are performed during the process.

[0093] Step 5: Batch quality inspection upon entry. All types of purchased raw materials are subject to batch quality inspection upon entry into the factory to determine the chemical composition of the raw materials and inform the steelmaking area of ​​the corresponding composition information.

[0094] Step 6: Confirmation of receipt: The steelmaking area confirms the net weight and composition information of the raw materials based on the way the raw materials enter the factory, and receives the raw materials to the corresponding warehouse and storage location.

[0095] Step 7: The low-level silo is loaded with materials from the high-level silo. According to the inventory in the high-level silo, the steelmaking production plan of the shift and the raw material demand, various raw materials are loaded from the low-level silo to the high-level silo.

[0096] Step 8: Return materials from the high-level silo to the low-level silo. When the high-level silo has a high inventory or some storage locations need to be emptied for other raw material stacking, return materials from the high-level silo to the low-level silo.

[0097] Step 9: Raw material warehouse inventory management, combined with the raw material feeding, consumption and regular inventory adjustment of each warehouse, calculates the raw material inventory in each warehouse in real time, so that warehouse management personnel can conduct comprehensive on-site management of the current use of raw materials in the steelmaking area and the raw material procurement needs in the factory.

[0098] Step 10: Furnace consumption management, through computer information means, comprehensively collect the consumption information of raw materials in each furnace and each process of steelmaking, and combine the cost accounting rules to post the corresponding costs such as raw material consumption to the financial department.

[0099] The present invention also provides a steelmaking area raw material management system, which can be implemented by executing the process steps of the steelmaking area raw material management method, that is, technical personnel in this field can understand the steelmaking area raw material management method as a preferred implementation of the steelmaking area raw material management system.

[0100] Those skilled in the art know that, in addition to realizing the system and its various devices, modules, and units provided by the present invention in a purely computer-readable program code, it is entirely possible to realize the same functions in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system and its various devices, modules, and units provided by the present invention can be considered as a hardware component, and the devices, modules, and units included therein for realizing various functions can also be regarded as structures within the hardware component; the devices, modules, and units for realizing various functions can also be regarded as both software modules for realizing the method and structures within the hardware component.

[0101] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A method for managing raw materials in a steelmaking area, characterized in that: include: Step S1: Issue a material request according to the production plan; Step S2: supplying raw materials according to the material application and collecting raw material information; Step S3: According to the raw material information, the raw materials are collected and classified into corresponding storage yards; Step S4: dispatching the raw materials to the silo according to the actual material demand, and obtaining the feed information, consumption information and inventory information of the raw materials; Step S5: Based on the feed information, consumption information and inventory information, the inventory of raw materials in each of the silos is calculated and the cost is accounted for.

2. The steelmaking area raw material management method according to claim 1, characterized in that: In step S2, the methods of supplying raw materials include: direct supply, distribution and allocation; The raw material information includes: scrap steel, alloy, auxiliary materials and limestone.

3. The steelmaking area raw material management method according to claim 2, characterized in that: In step S3, the raw materials are collected and classified into corresponding storage yards, and the steps include: Step S3.1: Based on the raw material information, a supply history record is formed; the supply history record is used to clarify the starting location, target location and type of the raw material; Step S3.2: Counting the weight information of the supply history record; the weight information includes: gross weight, tare weight and net weight; Step S3.3: Analyze the composition information of the raw materials; determine whether the composition information and the weight information are consistent with the actual objects corresponding to the supply history record; if the result is yes, collect the raw materials and classify them into the corresponding warehouse; if the result is no, recheck and correct.

4. The steelmaking area raw material management method according to claim 3, characterized in that: In step S4, the process of dispatching the raw materials to the silo includes: The silo includes: a low-level silo and a high-level silo; The low-level silo is a storage device used to store the raw materials required in the steelmaking process; The high-level silo is a storage device, and its physical location is higher than the low-level silo; Loading step: According to the demand for corresponding raw materials in the steelmaking production plan, determine whether the raw material reserve in the high-level silo is less than the raw material quantity in the production plan. If the result is yes, the low-level silo will load the material to the high-level silo; if the result is no, no processing will be done; Material return step: determine whether the raw material reserve in the silo is higher than the planned production raw material quantity or whether part of the raw material reserve in the silo needs to be emptied to store other raw materials. If the result is yes, the high-level silo returns the material to the low-level silo; if the result is no, no processing will be done.

5. The steelmaking area raw material management method according to claim 4, characterized in that: In step S5, the mathematical expression of the inventory is: Ending inventory = beginning inventory + input quantity – consumption quantity Among them, the ending inventory refers to the raw material inventory at the end of the period; the beginning inventory refers to the raw material inventory at the beginning of the period; the feed quantity refers to the feed quantity of raw materials within the specified period; the consumption refers to the consumption of raw materials within the specified period; The cost accounting mentioned above refers to the collection of business data.

6. A steelmaking area raw material management system, characterized in that: include: Module M1: Issue material request according to production plan; Module M2: supply raw materials according to the material application and collect raw material information; Module M3: Collect the raw materials and classify them into corresponding warehouses according to the raw material information; Module M4: dispatch the raw materials to the silo according to the actual material demand, and obtain the feed information, consumption information and inventory information of the raw materials; Module M5: Based on the feed information, consumption information and inventory information, calculate the inventory of raw materials in each of the silos and perform cost accounting.

7. The steelmaking area raw material management system according to claim 6, characterized in that: In module M2, the methods of supplying raw materials include: direct supply, distribution and transfer; The raw material information includes: scrap steel, alloy, auxiliary materials and limestone.

8. The steelmaking area raw material management system according to claim 7, characterized in that: In the module M3, the raw materials are collected and sorted into corresponding storage areas, and the steps include: Module M3.1: Based on the raw material information, a supply history record is formed; the supply history record is used to clarify the starting point, target point and type of the raw material; Module M3.2: Count the weight information of the supply history record; the weight information includes: gross weight, tare weight and net weight; Module M3.3: Analyze the composition information of the raw materials; determine whether the composition information and the weight information are consistent with the actual objects corresponding to the supply history record; if the result is yes, collect the raw materials and classify them into the corresponding warehouse; if the result is no, recheck and correct.

9. The steelmaking area raw material management system according to claim 8, characterized in that: In the module M4, the process of dispatching the raw materials to the silo includes: The silo includes: a low-level silo and a high-level silo; The low-level silo is a storage device used to store the raw materials required in the steelmaking process; The high-level silo is a storage device, and its physical location is higher than the low-level silo; Loading step: According to the demand for corresponding raw materials in the steelmaking production plan, determine whether the raw material reserve in the high-level silo is less than the raw material quantity in the production plan. If the result is yes, the low-level silo will load the material to the high-level silo; if the result is no, no processing will be done; Material return step: determine whether the raw material reserve in the silo is higher than the planned production raw material quantity or whether part of the raw material reserve in the silo needs to be emptied to store other raw materials. If the result is yes, the high-level silo returns the material to the low-level silo; if the result is no, no processing will be done.

10. The steelmaking area raw material management system according to claim 9, characterized in that: In the module M5, the mathematical expression of the inventory is: Ending inventory = beginning inventory + input quantity – consumption quantity Among them, the ending inventory refers to the raw material inventory at the end of the period; the beginning inventory refers to the raw material inventory at the beginning of the period; the feed quantity refers to the feed quantity of raw materials within the specified period; the consumption refers to the consumption of raw materials within the specified period; The cost accounting mentioned above refers to the collection of business data.

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