Safety early warning system for oil-rich pulverized coal workshop
By combining fixed and mobile dust sensors with a safety early warning system for oil-rich pulverized coal workshops controlled by a PLC, the problem of frequent false alarms in existing technologies has been solved, enabling accurate early warning and rapid risk handling, thereby improving workshop safety and worker convenience.
Patent Information
- Application Number
- CN202422155906.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-09-03
AI Technical Summary
The existing dust detection methods in oil-rich pulverized coal workshops rely on dust detectors worn by workers, which result in frequent false alarms and inconvenience, leading to worker fatigue and an inability to effectively warn of fire and explosion risks.
Using fixed and mobile dust sensors combined with a PLC control center, powered by solar panels and batteries, it achieves comprehensive detection and data analysis. A mobile alarm device is installed on a safety helmet, connected to the factory's safety early warning system, and controls the workshop's ventilation system and alarm devices.
Reduce false alarms, improve the accuracy and speed of early warning, enhance workshop safety, make it convenient for workers to wear, and handle risks in a timely manner.
Smart Images

Figure CN223757145U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a workshop safety early warning device technical field, concretely is a kind of rich oil pulverized coal workshop safety early warning system. BACKGROUND
[0002] Rich oil coal refers to the classification of tar yield in 7%-12% coal, mainly distributed in western region of our country is a kind of high-quality fuel and chemical raw material, with high tar yield, low ash, easy to break and grind, high calorific value characteristics, since in the process of being broken and ground into powder in workshop, it is easy to produce a large amount of coal powder, based on its flammable characteristics, therefore, there is the risk of fire and explosion, the current rich oil pulverized coal workshop basically relies on the dust detector worn on the body of worker to detect and early warn, but this single detection method range detection is small, when small range appears dust overproof, it is easy to appear false alarm, for a long time, worker is easy to produce alarm vigilance fatigue, easy to ignore risk, and it is very inconvenient to wear, therefore, need to make improvement for this situation. SUMMARY
[0003] To solve the above technical problems, the utility model provides a kind of rich oil pulverized coal workshop safety early warning system to meet needs.
[0004] To solve the above technical problems, the utility model provides a kind of rich oil pulverized coal workshop safety early warning system to meet needs.
[0005] Further, the power supply includes solar panel, battery, the solar panel is connected with the battery, the battery is connected with the PLC control center, fixed dust sensor, fixed alarm device, wireless module.
[0006] Further, it include data storage module, the PLC control center is connected with the data storage module, the battery is connected with the data storage module.
[0007] Further, the fixed dust sensor, mobile dust sensor are used to detect dust content in air in workshop;
[0008] The PLC control center is used to acquire fixed dust sensor and mobile dust sensor data, analyze the data, transmit the data to the plant safety early warning system, control the workshop ventilation system, and control the alarm component.
[0009] The wireless module is used for receiving and sending remote signals.
[0010] Further, the data storage module is used to store the data acquired and processed by the PLC control center.
[0011] Further, the mobile dust sensor and the mobile alarm device are installed on the safety helmet.
[0012] Compared with the prior art, the utility model has the following advantages:
[0013] 1. The utility model discloses a mobile dust sensor and a fixed dust sensor in the workshop are comprehensively detected, data analysis is carried out by the PLC control center, and whether an alarm signal is sent is judged, the number of false alarms is greatly reduced, early warning is more accurate, and the PLC control center controls the workshop ventilation system to ventilate while alarming, risk is handled in time, and the safety of workshop operation is improved.
[0014] 2. The utility model discloses that the PLC control center is connected to the plant safety early warning system, and risk pre-reporting is timely informed to the safety responsible person in the plant, and the risk can also be handled faster, the reaction time to the risk is reduced, and the response speed of handling the risk is greatly improved. DRAWINGS
[0015] Figure 1 The utility model is a structural diagram. CONCRETE IMPLEMENTING METHOD
[0016] The utility model will be further described in connection with the drawings.
[0017] As Figure 1 The utility model discloses a kind of rich oil pulverized coal workshop safety early warning systems, including power supply, fixed dust sensor, mobile dust sensor, PLC control center, alarm component, workshop ventilation system, alarm component includes fixed alarm device and mobile alarm device, wherein fixed alarm device and mobile alarm device are audible and visual alarm, PLC control center is connected to plant safety early warning system, fixed dust sensor, fixed alarm device and PLC control center are connected in communication, mobile dust sensor, mobile alarm device are connected in communication with PLC control center by wireless module, workshop ventilation system is controlled to PLC control center, power supply is PLC control center, fixed dust sensor, fixed alarm device, wireless module power supply.
[0018] In order to make full use of sunlight resources, the power supply adopts solar panels and storage batteries, the solar panels are electrically connected with the storage batteries, the storage batteries are electrically connected with the PLC control center, the fixed dust sensor, the fixed alarm device and the wireless module, and the system is more energy-saving and environment-friendly.
[0019] In order to process and store the detected data for later analysis, the data storage module is in communication connection with the PLC control center, and the storage batteries are electrically connected with the data storage module.
[0020] The fixed dust sensor and the mobile dust sensor are used to detect the dust content in the air in the workshop;
[0021] The PLC control center is used to obtain the data of the fixed dust sensor and the mobile dust sensor and perform data analysis, transmit the data to the factory safety warning system, control the workshop ventilation system, and control whether the fixed alarm device and the mobile alarm device alarm;
[0022] The wireless module is used to receive and send remote signals.
[0023] In order to wear more conveniently, the mobile dust sensor and the mobile alarm device are installed on the safety helmet.
[0024] The working process of the embodiment is as follows:
[0025] When the mobile dust sensor on the safety helmet and the fixed dust sensor in the workshop simultaneously detect that the dust concentration in the air reaches the set range, the PLC control center sends an instruction to control the workshop ventilation system to start, and sends an instruction to the mobile alarm device on the safety helmet and the fixed alarm device in the workshop to start emitting sound and light warning signals, greatly reducing the number of false alarms caused by single dust sensor detection, and the warning is more accurate. At the same time, the PLC control center is connected to the factory safety warning system, and the safety manager can send an instruction to the PLC control center from the factory safety system when other dangerous situations are found, and the PLC control center controls the fixed alarm device and the mobile alarm device to emit sound and light safety warning signals, making the oil-rich pulverized coal workshop safety warning system more comprehensive.
[0026] The solar panels can convert the absorbed solar energy into electrical energy and store it in the storage batteries, the storage batteries supply power to the PLC control center, the fixed dust sensor, the fixed alarm device and the wireless module, and the system is more energy-saving, the wireless module is powered, and the data storage module is used to store the data obtained and processed by the controller.
Claims
1. A rich oil pulverizing plant safety warning system, characterized in that: The power supply, the fixed dust sensor, the mobile dust sensor, the PLC control center, the alarm assembly, the workshop ventilation system, the alarm assembly includes fixed alarm device and mobile alarm device, the PLC control center accesses the factory safety early warning system, the fixed dust sensor, fixed alarm device and the PLC control center are connected in communication, the mobile dust sensor, mobile alarm device is connected with the PLC control center in communication through wireless module, the workshop ventilation system is controlled by the PLC control center, the power supply is the PLC control center, fixed dust sensor, fixed alarm device, wireless module power supply.
2. The rich oil pulverizing plant safety warning system according to claim 1, characterized in that: The power supply includes solar panel, battery, the solar panel is connected with the battery, the battery and the PLC control center, fixed dust sensor, fixed alarm device, wireless module are connected in electricity.
3. The rich oil pulverizing plant safety warning system according to claim 2, characterized in that: Including data storage module, the PLC control center is connected with the data storage module in communication, the battery and the data storage module are connected in electricity.
4. The rich oil pulverizing plant safety warning system according to claim 1, characterized in that: The fixed dust sensor, mobile dust sensor is used to detect the dust content in the air in the workshop; The PLC control center is used to obtain fixed dust sensor, mobile dust sensor data and carries out data analysis, transmits data to the factory safety early warning system and regulates and controls the workshop ventilation system, controls the alarm assembly simultaneously; The wireless module is used for receiving and sending remote signal.
5. The rich oil pulverizing plant safety warning system according to claim 3, characterized in that: The data storage module is used to store the data obtained and processed by the PLC control center.
6. The rich oil pulverizing plant safety warning system according to claim 1, characterized in that: The mobile dust sensor, mobile alarm device is installed on the safety helmet.