PLC (Programmable Logic Controller) control system for sintering finished product warehouse district

By introducing a combination of PLC substations, radar level meters, and belt weighing sensors in the sintering finished product warehouse area, the problem of real-time monitoring of material level and flow has been solved, real-time data exchange and flow monitoring have been achieved, the labor intensity of workers has been reduced, and production efficiency has been improved.

CN223390053UActive Publication Date: 2025-09-26YUNNAN YUXI XIANFU IRON & STEEL (GRP) CO LTD
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Patent Information

Application Number
CN202422793061.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-09-26
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

In the existing technology, the sintered finished product silo area is unable to view the material level of each finished product silo and the instantaneous and cumulative flow rates of the sintered finished product ore entering the blast furnace in real time, which seriously restricts the production process, and the on-site environment is harsh and the labor intensity of the workers is high.

Method used

PLC substations, radar level meters, and belt weighing sensors are used, connected to AI modules via signal isolators to achieve data exchange, monitor material levels and flows in real time, and reduce manual intervention.

Benefits of technology

It realizes the real-time observation of multiple finished product bin material levels and real-time monitoring of finished product ore flow in the sintering main control room, reduces the labor intensity of workers, improves the working environment and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of iron and steel smelting, and particularly discloses a sintering finished product bin district PLC control system which comprises a radar level gage arranged at the upper part of a sintering finished product bin; the PLC substation comprises an AI module, a first signal isolator, a second signal isolator and a third signal isolator; the input end of the first signal isolator is connected with the radar level gage, the output end of the first signal isolator is connected with the first input end of the AI module, and the first output end of the AI module is connected with an arranged background computer; the input end of the second signal isolator is connected with the new iron belt weighing sensor, the output end of the second signal isolator is connected with the second input end of the AI module, and the second output end of the AI module is connected with the background computer; the input end of the third signal isolator is connected with the old iron belt weighing sensor, the output end of the third signal isolator is connected with the third input end of the AI module, and the third output end of the AI module is connected with the background computer.
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Description

Technical Field

[0001] The present application relates to the technical field of steel smelting, and in particular to a PLC control system for a sintering finished product silo area. Background Art

[0002] During the sintering production process, the processing of sintered products is to crush, screen, cool and granulate the burned sintered ore. The purpose is to ensure the uniform particle size of the sintered ore and remove the unburned part to avoid large pieces of sintered ore getting stuck in the trough and damaging the transport belt, thus creating favorable conditions for blast furnace smelting.

[0003] In the existing technology, the sintering finished product silo area is generally operated manually on-site. Since the finished product silo is not equipped with a level meter, on-site workers monitor the material levels of multiple silos with the naked eye, resulting in the inability to view the material level of each finished product silo and the instantaneous and cumulative flow of sintered finished product ore entering the blast furnace in real time, which seriously restricts the production process. In addition, due to the harsh on-site environment, the labor intensity of the workers is high. Summary of the Invention

[0004] The purpose of this application is to provide a PLC control system for the sintering finished product silo area, which is used to solve the problem in the existing technology that it is impossible to view the material level of each finished product silo and the instantaneous flow and cumulative flow of the sintered finished product ore entering the blast furnace in real time, which seriously restricts the production process, and due to the harsh on-site environment, the labor intensity of the workers on the job is high.

[0005] To achieve the above purpose, the embodiment of the present application provides a PLC control system for the sintering finished product warehouse area, including: a PLC substation, a radar level meter, a new iron belt weighing sensor, and an old iron belt weighing sensor, wherein:

[0006] The radar level meter is arranged on the upper part of the sintered product bin;

[0007] The PLC substation includes an AI module, a first signal isolator, a second signal isolator, and a third signal isolator;

[0008] The input end of the first signal isolator is connected to the radar level meter, the output end of the first signal isolator is connected to the first input end of the AI ​​module, and the first output end of the AI ​​module is connected to a set background computer;

[0009] The input end of the second signal isolator is connected to the new iron belt weighing sensor, the output end of the second signal isolator is connected to the second input end of the AI ​​module, and the second output end of the AI ​​module is connected to the background computer;

[0010] The input end of the third signal isolator is connected to the old iron belt weighing sensor, the output end of the third signal isolator is connected to the third input end of the AI ​​module, and the third output end of the AI ​​module is connected to the background computer.

[0011] Optionally, the AI ​​module model is Siemens 6ES7 331-1KF02-0AB0.

[0012] Optionally, the PLC substation further includes an interface module, and the radar level meter, new iron belt weighing sensor, and old iron belt weighing sensor are respectively connected to the first signal isolator, the second signal isolator, and the third signal isolator through the interface module.

[0013] Optionally, the model of the interface module is Siemens 6ES7 390-1AF30-0AA0.

[0014] Optionally, the PLC substation further includes an OLM module, and the PLC substation is connected to the set PLC master station through the OLM module.

[0015] Optionally, the radar level meter is connected to the PLC substation via a signal cable.

[0016] Optionally, the signals of the new iron belt weighing sensor and the old iron belt weighing sensor are connected to the PLC substation via a signal cable.

[0017] Optionally, it also includes:

[0018] a first weighing controller, wherein an input end of the first weighing controller is connected to the new iron belt weighing sensor, and an output end of the first weighing controller is connected to an input end of the second signal isolator;

[0019] A second weighing controller, wherein the input end of the second weighing controller is connected to the old iron belt weighing sensor, and the output end of the second weighing controller is connected to the input end of the third signal isolator.

[0020] The embodiments of the present application have the following advantages:

[0021] Compared with the existing technology, the PLC control system for the sintering finished product silo area provided by the above technical solution increases PLC substations. The signals of instruments such as radar level meters and belt weighing sensors installed on site enter the PLC for collection. The substations exchange data with the main control PLC system through optical fibers. The material level conditions of multiple finished product silos can be observed in real time in the sintering main control room, and the instantaneous flow and cumulative flow of finished product ore entering the blast furnace can be monitored in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the embodiments of this application or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0023] Figure 1 A schematic diagram of the connection of a radar level meter for a PLC control system in a sintered product silo area provided by at least one embodiment of the present application;

[0024] Figure 2 A schematic diagram showing the connection of a new iron belt weighing sensor for a PLC control system for a sintered finished product silo area provided by at least one embodiment of the present application;

[0025] Figure 3 A schematic diagram of the connection of an old iron belt weighing sensor for a PLC control system of a sintered finished product silo area provided in at least one embodiment of the present application.

[0026] Description of reference numerals:

[0027] 1. Radar level meter, 2. First signal isolator, 3. Second signal isolator, 4. Third signal isolator, 5. AI module, 6. Backend computer, 7. New iron belt weighing sensor, 8. Old iron belt weighing sensor, 9. First weighing controller, 10. Second weighing controller. DETAILED DESCRIPTION

[0028] The following specific embodiments illustrate the implementation of this application. Those familiar with the art can easily understand the other advantages and functions of this application from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of this application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Unless otherwise expressly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0030] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0031] The present application embodiment provides a PLC control system for a sintered finished product warehouse area. Figures 1 to 3 ,include:

[0032] PLC substation, radar level meter 1, new iron belt weighing sensor 7, old iron belt weighing sensor 8, among which,

[0033] The radar level meter 1 is arranged on the upper part of the sintered product bin;

[0034] The PLC substation includes an AI module 5, a first signal isolator 2, a second signal isolator 3, and a third signal isolator 4;

[0035] The input end of the first signal isolator 2 is connected to the radar level meter 1, the output end of the first signal isolator 2 is connected to the first input end of the AI ​​module, and the first output end of the AI ​​module is connected to the background computer 6;

[0036] The input end of the second signal isolator 3 is connected to the new iron belt weighing sensor 7, the output end of the second signal isolator 3 is connected to the second input end of the AI ​​module 5, and the second output end of the AI ​​module 5 is connected to the background computer 6;

[0037] The input end of the third signal isolator 4 is connected to the old iron belt weighing sensor 8, the output end of the third signal isolator 4 is connected to the third input end of the AI ​​module 5, and the third output end of the AI ​​module is connected to the background computer 6.

[0038] Specifically, according to the operating conditions of the on-site equipment and the environment in which the equipment operates, a PLC substation belonging to the 198 m2 sintering main control PLC system is added to the duty room of the finished product warehouse area. All material levels of the 198 m2 and 180 m2 sintering finished product warehouses are measured by radar level meter 1, and the signal enters the PLC substation. The material level of each finished product warehouse can be observed in real time in the sintering main control room. The signals of the new iron belt weighing sensor 7 and the old iron belt weighing sensor 8 enter the PLC substation, and the instantaneous flow and cumulative flow of the finished product ore entering the blast furnace can be monitored in real time in the sintering main control room. The energy medium instrument in the finished product warehouse area enters the PLC substation, which is extremely beneficial to guiding process production and greatly reducing the labor intensity of job workers.

[0039] In some embodiments, the AI ​​module 5 model is Siemens 6ES7 331-1KF02-0AB0.

[0040] In some embodiments, the PLC substation also includes an interface module, and the radar level meter 1, the new iron belt weighing sensor 7, and the old iron belt weighing sensor 8 are respectively connected to the first signal isolator 2, the second signal isolator 3, and the third signal isolator 4 through the interface module.

[0041] In some embodiments, the interface module is a Siemens 6ES7 390-1AF30-0AA0 interface module.

[0042] In some embodiments, further comprising:

[0043] a first weighing controller 9, wherein an input end of the first weighing controller 9 is connected to the new iron belt weighing sensor 7, and an output end of the first weighing controller 9 is connected to an input end of the second signal isolator 3;

[0044] The second weighing controller 10 , the input end of the second weighing controller 10 is connected to the old iron belt weighing sensor 8 , and the output end of the second weighing controller 10 is connected to the input end of the third signal isolator 4 .

[0045] In some embodiments, the PLC substation further includes an OLM module, and the PLC substation is connected to the set PLC master station through the OLM module.

[0046] Specifically, the PLC substation of the master PLC system communicates with the master PLC (PLC master station) through optical fiber and OLM module (optical fiber link module) to exchange data.

[0047] In some embodiments, a radar level meter 1 is installed on the top of each finished product warehouse, with a total of 19 units (including one buffer warehouse with an area of ​​360 m2 for sintering). In some embodiments, the radar level meter 1 is connected to the PLC substation via a signal cable.

[0048] In some embodiments, high-precision weighing sensors are newly installed on site for the new iron belt and the old iron belt. In some embodiments, the signals of the new iron belt weighing sensor 7 and the old iron belt weighing sensor 8 are connected to the PLC substation through signal cables.

[0049] In some embodiments, cables are laid, equipment signals are checked, wiring is performed to debug various functions, programs and process screens are written, and the operations are displayed and performed on the HMI of the background computer 6 .

[0050] In summary, compared with the existing technology, the PLC control system for the sintering finished product bin area provided in this application adds a PLC substation, and the signals of instruments such as the radar level meter and belt weighing sensor installed on site enter the PLC for collection. The substation exchanges data with the main control PLC system through optical fiber, and the material level status of multiple finished product bins can be observed in real time in the sintering main control room, and the instantaneous flow and cumulative flow of finished product ore entering the blast furnace can be monitored in real time.

[0051] The sintered finished product bin is the "granary" of the blast furnace. Real-time monitoring of the material level in the bin and the amount of finished products entering the blast furnace is of great significance for guiding sintering and blast furnace production, and has obvious economic effects.

[0052] The application of the PLC control system for the sintering finished product warehouse area provided by this application is of great benefit in guiding process production, significantly reducing the labor intensity of workers, alleviating the workload of equipment management and maintenance, improving the working environment, and significantly reducing costs and increasing efficiency, thereby ensuring the safe and normal operation of production and improving productivity.

[0053] Note that, unless otherwise explicitly stated, all features disclosed in this specification (including any accompanying claims, abstracts, and drawings) may be replaced by alternative features that achieve the same, equivalent, or similar purposes. Therefore, unless explicitly stated otherwise, each feature disclosed is merely an example of a group of equivalent or similar features. Where used, further, preferably, further, and more preferably are simply the beginning of another embodiment based on the previous embodiment, and the content following further, preferably, further, or more preferably is combined with the previous embodiment as a complete construction of another embodiment. Several further, preferably, further, or more preferably settings following the same embodiment can be arbitrarily combined to form another embodiment.

[0054] In the implementation of functions and steps, the corresponding functions and steps in various embodiments may also occur in a different order than shown. For example, two consecutive functions and steps can actually be performed or implemented substantially in parallel, or they can sometimes be performed or implemented in the opposite order, depending on the functions involved.

[0055] Although the present application has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made based on the present application. Therefore, such modifications or improvements, which do not depart from the spirit of the present application, are within the scope of protection claimed in the present application.

Claims

1. A PLC control system for sintered finished product silo area, characterized in that: include: PLC substation, radar level meter, new iron belt weighing sensor, old iron belt weighing sensor, among which, The radar level meter is arranged on the upper part of the sintered product bin; The PLC substation includes an AI module, a first signal isolator, a second signal isolator, and a third signal isolator; The input end of the first signal isolator is connected to the radar level meter, the output end of the first signal isolator is connected to the first input end of the AI ​​module, and the first output end of the AI ​​module is connected to a set background computer; The input end of the second signal isolator is connected to the new iron belt weighing sensor, the output end of the second signal isolator is connected to the second input end of the AI ​​module, and the second output end of the AI ​​module is connected to the background computer; The input end of the third signal isolator is connected to the old iron belt weighing sensor, the output end of the third signal isolator is connected to the third input end of the AI ​​module, and the third output end of the AI ​​module is connected to the background computer.

2. The PLC control system for the sintered finished product silo area according to claim 1 is characterized in that: The AI ​​module model is Siemens 6ES7 331-1KF02-0AB0.

3. The PLC control system for the sintered finished product silo area according to claim 1 is characterized in that: The PLC substation also includes an interface module, and the radar level meter, new iron belt weighing sensor, and old iron belt weighing sensor are respectively connected to the first signal isolator, the second signal isolator, and the third signal isolator through the interface module.

4. The PLC control system for the sintered product silo area according to claim 3 is characterized in that: The model of the interface module is Siemens 6ES7 390-1AF30-0AA0.

5. The PLC control system for the sintered product silo area according to claim 1 is characterized in that: The PLC substation further includes an OLM module, and the PLC substation is connected to the set PLC master station through the OLM module.

6. The PLC control system for the sintered finished product silo area according to claim 1 is characterized in that: The radar level meter is connected to the PLC substation via a signal cable.

7. The PLC control system for the sintered finished product silo area according to claim 1 is characterized in that: The signals of the new iron belt weighing sensor and the old iron belt weighing sensor are connected to the PLC substation through signal cables.

8. The PLC control system for the sintered finished product silo area according to claim 1 is characterized in that: Also includes: a first weighing controller, wherein an input end of the first weighing controller is connected to the new iron belt weighing sensor, and an output end of the first weighing controller is connected to an input end of the second signal isolator; A second weighing controller, wherein the input end of the second weighing controller is connected to the old iron belt weighing sensor, and the output end of the second weighing controller is connected to the input end of the third signal isolator.