A charging system for a shaft furnace

Abstract

The utility model is suitable for calcining furnace feeding technical field provides a kind of tank type calcining furnace feeding system, including track, feeding trolley, multiple groups calcining furnace bunker, central control system and wireless communication module. Feeding trolley is movably arranged on track, and unloading actuating mechanism and discharging vibration mechanism are equipped on it. Each bunker is equipped with material level detection device. Central control system is connected with feeding trolley and material level detection device signal by wireless communication module, receives material level information and intelligently controls the movement of trolley, unloading and vibration action. System integration hand automatic switching module and safety protection system, realize unattended automation operation. The utility model solves the problems, such as traditional manual operation intensity, low efficiency, poor safety and extensive material management, realizes the intellectualization, high efficiency and essential safety of feeding operation, significantly improves production efficiency and product quality stability, reduces operating cost.

Description

Technical Field

[0001] This utility model belongs to the field of calcining furnace feeding technology, and particularly relates to a tank-type calcining furnace feeding system. Background Technology

[0002] The calcining furnace is a key piece of equipment in the production of calcined coke, and its stable operation depends on a continuous and uniform material supply. Traditional feeding systems often use suspended feeding trolleys, with operators following the trolley's movement. In high-temperature environments, the trolley's movement, positioning, and unloading are controlled manually or via wired remote control. This operating mode has significant drawbacks: First, it involves high manual labor intensity, requiring operators to work for extended periods in harsh environments with high temperatures and dust, facing serious heat damage and safety risks. Second, the feeding process relies entirely on manual judgment, leading to significant fluctuations in the timing and amount of feeding, easily resulting in empty furnaces, material shortages, or overflows, affecting not only production efficiency but also compromising the stability of calcined coke product quality. Third, wired control limits the trolley's movement range, resulting in poor flexibility, and the wiring is prone to wear and tear, making maintenance inconvenient. Finally, the lack of real-time and accurate monitoring of material levels in the silos leads to inefficient material management and hinders refined and intelligent scheduling. Therefore, developing a charging system for a tank calciner that can achieve automated and intelligent operation, ensure personnel safety, and significantly improve production efficiency and product quality stability has become an urgent technical problem to be solved in this field. Utility Model Content

[0003] This utility model provides a feeding system for a tank-type calcining furnace, which aims to solve the problems existing in the current technology.

[0004] This utility model is implemented as follows: a charging system for a tank-type calcining furnace, comprising: a track, a charging trolley, multiple sets of calcining furnace silos, a central control system, and a wireless communication module; The feeding trolley is movably mounted on the track for carrying and transporting materials; The feeding trolley is equipped with a material unloading actuator and a material feeding vibration mechanism; The multiple sets of calcining furnace silos are arranged along the track, and each silo is equipped with a material level detection device. The central control system is connected to the feeding trolley and the material level detection device via the wireless communication module. It is used to receive material level information and control the movement of the feeding trolley, the action of the unloading actuator, and the start and stop of the material discharge vibrating mechanism.

[0005] Preferably, the central control system integrates a manual / automatic switching module, allowing the feeding trolley to seamlessly switch between manual remote control mode and automatic mode.

[0006] Preferably, the unloading actuator is a pneumatic or electric drive mechanism, specifically using a cylinder or electric push rod to drive the bottom door of the feeding trolley to open and close.

[0007] Preferably, the feeding vibration mechanism is a pneumatic vibrator or an electric vibrator, which is installed on the feeding pipes on both sides of the feeding trolley; the start and stop of the vibration mechanism is intelligently controlled by the central control system based on the flap valve position signal and / or the feeding status monitoring signal.

[0008] Preferably, the material feeding status monitoring signal comes from the calculation of the weight change rate of the feeding trolley or the visual inspection device of the feeding port.

[0009] Preferably, the material level detection device is one of a radar level gauge, an ultrasonic level gauge, or a weighted level gauge, used to adapt to the high temperature and dusty environment of the calcining furnace silo.

[0010] Preferably, it further includes a security protection system, the security protection system comprising: Area safety sensing devices, such as laser scanners, safety light curtains, or ultrasonic sensors, are used to monitor the running path of the feeding trolley and its surrounding environment; An emergency stop device, located in a critical position, can be triggered by a wireless signal to stop the system in an emergency. Both the area safety sensing device and the emergency stop device are connected to the central control system via signals.

[0011] Preferably, the central control system executes an intelligent scheduling algorithm based on the real-time material level data fed back by the material level detection device, controls the feeding trolley to prioritize feeding the calcining furnace silos with material levels below a preset low threshold, and automatically stops feeding and moves to the next target silo when the silo reaches the full material set value.

[0012] Preferably, the central control system is a programmable logic controller (PLC).

[0013] Preferably, the wireless communication module adopts an industrial-grade wireless communication protocol to ensure communication stability and reliability in complex industrial environments.

[0014] Compared with related technologies, the charging system for the tank-type calcining furnace provided by this utility model has the following beneficial effects: The entire feeding process has been automated and intelligentized, significantly improving production efficiency. Through a central control system integrating intelligent scheduling algorithms, based on real-time data from the material level detection device, the system automatically directs the feeding trolley to complete a series of actions, including precise movement, unloading, and anti-blocking vibration, achieving unattended continuous operation with a "full load, go" mechanism. This completely changes the traditional manual operation mode, drastically reducing the feeding time per furnace from approximately 60 minutes, resulting in a qualitative leap in equipment utilization and production efficiency.

[0015] Significantly reducing labor costs and intensity, and improving the working environment: After the upgrade, operators no longer need to enter high-temperature, high-risk areas; monitoring or remote intervention can be completed solely from the control room. The number of personnel required per shift has been reduced from 9 to 5, saving over 860,000 yuan in labor costs annually. This fundamentally liberates operators from high-temperature, heavy, and dangerous working environments, embodying a people-oriented safety production philosophy.

[0016] Improved product quality uniformity and stability: Closed-loop control based on high-precision material level monitoring and programmed unloading actions eliminated fluctuations in feeding amount and timing caused by manual operation, ensuring the stability of material height in the calcining furnace, thereby fundamentally improving the uniformity of the produced calcined coke quality.

[0017] A multi-layered safety protection system has been constructed, resulting in a high level of inherent safety. The system integrates a safety protection system consisting of regional safety sensing devices and emergency stop devices, which can monitor the environment in real time and respond to emergencies, achieving proactive protection. Combined with wireless remote control / automatic control and an automated unloading mechanism, close-range operation by personnel in hazardous areas is completely eliminated, achieving a zero-accident record related to material feeding since the upgrade.

[0018] The system operates stably and reliably, reducing maintenance costs: Utilizing industrial-grade wireless communication modules and a PLC control system, it boasts strong anti-interference capabilities and a significantly reduced failure rate. The smooth operation of the automatic control system directly reduces monthly equipment maintenance costs by approximately 5,000 yuan.

[0019] It has a high degree of flexibility and adaptability: the design of the manual-automatic switching module allows the system to seamlessly switch between fully automatic intelligent operation and manual remote intervention, which not only meets the high efficiency requirements of normal production, but also facilitates equipment debugging and handling of abnormal situations, making it highly adaptable. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall device of this utility model; Figure 2 This is a schematic diagram of the process flow of this utility model; In the diagram: 1. Track; 2. Feeding trolley; 21. Unloading actuator; 22. Feeding vibratory mechanism; 3. Calcining furnace silo; 31. Material level detection device; 4. Central control system; 41. Manual / automatic switching module; 5. Wireless communication module; 6. Area safety sensing device; 7. Emergency stop device. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] Please see Figure 1 and Figure 2 A charging system for a calcining furnace includes: a track 1, a charging trolley 2, multiple calcining furnace silos 3, a central control system 4, and a wireless communication module 5; The feeding trolley 2 is movably mounted on the track 1 to carry and transport materials; The feeding trolley 2 is equipped with a discharge actuator 21 and a discharge vibrating mechanism 22; Multiple sets of calcining furnace silos 3 are arranged along the track 1, and each silo 3 is equipped with a material level detection device 31; The central control system 4 is connected to the feeding trolley 2 and the material level detection device 31 via the wireless communication module 5. It is used to receive material level information and control the movement of the feeding trolley 2, the action of the unloading actuator 21, and the start and stop of the unloading vibrating mechanism 22.

[0024] The central control system 4 integrates a manual / automatic switching module 41, which allows the feeding trolley 2 to seamlessly switch between manual remote control mode and automatic mode.

[0025] The unloading actuator 21 is a pneumatic or electric drive mechanism, specifically using a cylinder or electric push rod to drive the bottom door of the feeding trolley to open and close.

[0026] The feeding vibration mechanism 22 is a pneumatic or electric vibrator, which is installed on the feeding pipes on both sides of the feeding trolley 2. The start and stop of the vibration mechanism 22 are intelligently controlled by the central control system 4 based on the flap valve position signal and / or the feeding status monitoring signal.

[0027] The material feeding status monitoring signal comes from the calculation of the weight change rate of the feeding trolley 2 or the visual inspection device at the feeding port.

[0028] The material level detection device 31 is one of radar level gauge, ultrasonic level gauge or hammer level gauge, used to adapt to the high temperature and dust environment of calcining furnace silo 3.

[0029] It also includes a security protection system, which includes: Area safety sensing device 6, such as laser scanner, safety light curtain or ultrasonic sensor, is used to monitor the running path of feeding trolley 2 and the surrounding environment; Emergency stop device 7, located in a critical position, can be triggered by a wireless signal to stop the system in an emergency. Both the area safety sensing device 6 and the emergency stop device 7 are connected to the central control system 4 via signals.

[0030] Based on the real-time material level data fed back by the material level detection device 31, the central control system 4 executes an intelligent scheduling algorithm to control the feeding trolley 2 to prioritize feeding the calcining furnace silo 3 where the material level is lower than the preset low threshold. When the silo reaches the full material setting value, the feeding is automatically stopped and the trolley moves to the next target silo.

[0031] The central control system 4 is a programmable logic controller (PLC).

[0032] The wireless communication module 5 adopts an industrial-grade wireless communication protocol to ensure communication stability and reliability in complex industrial environments.

[0033] During operation, the central control system PLC4 receives real-time material level data collected by the material level detection devices 31 in each calcining furnace silo 3 via the wireless communication module 5. The central control system 4 has a pre-installed intelligent scheduling algorithm that prioritizes dispatching the feeding trolley 2 to silos with material levels below a preset low threshold based on the principle of "departing when full".

[0034] After receiving instructions from the central control system 4, the feeding trolley 2 automatically runs along track 1 to the target calcining furnace hopper 3 and positions itself precisely. After positioning, the central control system 4 issues an instruction to activate the unloading actuator 21, such as a cylinder or electric push rod, to open the bottom door of the feeding trolley and begin unloading.

[0035] During the unloading process, the central control system 4 intelligently judges the feeding status by monitoring the weighing change rate of the feeding trolley 2 or the visual signal of the feeding port. When the feeding is not smooth or there is a risk of material blockage, the central control system 4 immediately triggers the pneumatic or electric vibrators of the feeding vibration mechanism 22 installed on both sides of the feeding trolley 2 to perform short-term and efficient vibration to break the blockage and ensure smooth material flow.

[0036] The material level detection device 31, such as a radar level gauge, continuously monitors the material level in the silo. When the material level reaches the full set value, it feeds this signal back to the central control system 4. The central control system 4 then issues a command to control the unloading actuator 21 to close the bottom door, stop unloading, and control the feeding trolley 2 to move to the next silo that needs to be filled, and so on, until all silos are full.

[0037] The central control system 4 integrates a manual / automatic switching module 41. In automatic mode, the system operates unmanned according to the above process. When debugging or troubleshooting is required, the operator can switch to manual mode and directly intervene in the movement, unloading, and vibration actions of the feeding trolley 2 via wireless remote control equipment from the central control room or a safe area, realizing flexible and seamless switching of operating modes.

[0038] This system is also equipped with a safety protection system, which operates independently throughout the process to ensure safety. The safety protection system includes area safety sensing devices 6, such as laser scanners, and emergency stop devices 7. Area safety sensing devices 6 scan the operating path of the feeding trolley 2 and its surrounding environment in real time. Once personnel intrusion or obstacles are detected, a signal is immediately sent to the central control system 4, triggering the feeding trolley 2 to automatically decelerate or stop urgently. Emergency stop devices 7, distributed at key locations on site, can be triggered by personnel in emergency situations, commanding the entire system to stop urgently via wireless signal.

[0039] In a further preferred embodiment of this utility model, the wireless communication module 5 adopts an industrial-grade wireless communication protocol, such as IEEE 802.11 series Wi-Fi, 4G / 5G, or a dedicated industrial wireless network such as WirelessHART, which ensures the stability and reliability of control signals and data transmission in the complex and harsh industrial environment of the calcination workshop, under conditions of high temperature, dust, and electromagnetic interference, and avoids the problems of limited mobility and inconvenient maintenance caused by traditional wired control methods.

[0040] Through the above-described embodiments, this utility model achieves fully automated, intelligent, and safe operation of the feeding process, significantly improving production efficiency, reducing labor costs and safety risks, and ensuring a continuous and stable material supply to the calcining furnace.

[0041] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0042] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A feeding system for a pot-type calcining furnace, characterized in that, include: Track (1), feeding trolley (2), multiple calcining furnace silos (3), central control system (4) and wireless communication module (5); The feeding trolley (2) is movably mounted on the track (1) for carrying and conveying materials; The feeding trolley (2) is equipped with a discharge actuator (21) and a discharge vibrating mechanism (22). The multiple sets of calcining furnace silos (3) are arranged along the track (1), and each silo (3) is equipped with a material level detection device (31). The central control system (4) is connected to the feeding trolley (2) and the material level detection device (31) via the wireless communication module (5) to receive material level information and control the movement of the feeding trolley (2), the action of the unloading actuator (21), and the start and stop of the unloading vibrating mechanism (22).

2. The feeding system for a pot-type calcining furnace according to claim 1, characterized in that, The central control system (4) integrates a manual / automatic switching module (41), and the operation mode of the feeding trolley (2) can be seamlessly switched between manual remote control mode and automatic mode.

3. A charging system for a shaft furnace according to claim 1 or 2, characterized in that The unloading actuator (21) is a pneumatic or electric drive mechanism, specifically using a cylinder or electric push rod to drive the bottom door of the feeding trolley to open and close.

4. A charging system for a pot-type calcining furnace according to claim 1 or 2, characterized in that, The feeding vibration mechanism (22) is a pneumatic vibrator or an electric vibrator, which is installed on the feeding pipes on both sides of the feeding trolley (2); the start and stop of the vibration mechanism (22) is intelligently controlled by the central control system (4) according to the flap valve position signal and / or the feeding status monitoring signal.

5. The feeding system for a pot-type calcining furnace according to claim 4, characterized in that, The material feeding status monitoring signal comes from the calculation of the weight change rate of the feeding trolley (2) or the visual inspection device of the feeding port.

6. A charging system for a pot-type calcining furnace according to claim 1 or 2, characterized in that, The material level detection device (31) is one of radar level gauge, ultrasonic level gauge or hammer level gauge, used to adapt to the high temperature and dust environment of the calcining furnace silo (3).

7. A charging system for a pot-type calcining furnace according to claim 1 or 2, characterized in that, It also includes a security protection system, which includes: Area safety sensing devices (6), such as laser scanners, safety light curtains or ultrasonic sensors, are used to monitor the running path of the feeding trolley (2) and its surrounding environment; An emergency stop device (7) is installed in a critical location and can be triggered by a wireless signal to stop the system in an emergency. Both the area safety sensing device (6) and the emergency stop device (7) are signal-connected to the central control system (4).

8. A charging system for a pot-type calcining furnace according to claim 1 or 2, characterized in that, The central control system (4) executes an intelligent scheduling algorithm based on the real-time material level data fed back by the material level detection device (31), controls the feeding trolley (2) to feed the calcining furnace silo (3) whose material level is lower than the preset low threshold, and automatically stops feeding and moves to the next target silo when the silo reaches the full material setting value.

9. A charging system for a pot-type calcining furnace according to claim 1 or 2, characterized in that, The central control system (4) is a programmable logic controller (PLC).

10. A charging system for a shaft furnace according to claim 1 or 2, characterized in that The wireless communication module (5) adopts an industrial-grade wireless communication protocol to ensure communication stability and reliability in complex industrial environments.

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