HCBBS Forum (English)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

Design of the operating system for grid belt conveyors

2021-09-18View Original

Thread Content

For grid belt conveyors, designing an effective control system means achieving half the success; therefore, the control system for such conveyors is crucial for the operational efficiency of enterprises. The control system for the grid belt conveyor is a key component in the overall design of the machine. In mechanical transportation systems, where the start or stop of one device affects the devices before and after it, interlock control should be implemented; whereas if the start or stop of a device has no impact on other devices, such devices do not need to be part of the interlock system. The operating procedure for interlocking is as follows: 1. Start from the final device of the transportation system, moving in the opposite direction to the material flow, and initiate it step by step ; 2. During shutdown, the sequence is the reverse of that for startup; that is, first stop the feeding equipment, and then, starting from the first device in the transportation system, shut down the devices one by one in the direction of material flow, thereby ensuring that all material on the devices is emptied as much as possible to avoid starting them with residual material. 3. When a device fails, all devices ahead of it should stop operating immediately, while the devices behind it shall continue to function until the material is exhausted. 4. The crushing equipment on the interlock line is generally started first, and it shuts down with a delay when the system is shut down. In the event of an accident that requires shutdown, aside from the accident itself, shutdown should not occur immediately; the equipment must be stopped only after the material has been emptied. 5. The dust removal equipment in the system should be started first; only after it is operating properly can the flat mesh belt conveyor be started. The operation methods include electrical interlocking and centralized control, which are generally used for interlocking in mechanized transportation systems composed of multiple flat belt conveyors. Electrical interlocking and decentralized operation are generally used in transportation systems consisting of fewer than three devices. To ensure the proper operation of a grid belt conveyor, some necessary safety facilities are also essential. Safety facilities adopted: The design of the grid belt conveyor shall comply with the \"Safety Specifications for Belt Conveyors\", and the following safety measures shall be implemented in the control system. 1. Pull-cord emergency switches or fixed emergency switches should be installed on the sides of the flat belt conveyor. Fixed accident switches should be installed every 15–20 meters. 2. To ensure the safe operation of flat mesh belt conveyors and monitor their operating conditions, belt misalignment switches, belt break controllers, slip detectors, etc., should be installed. 3. For grid belt conveyors used to transport materials prone to sticking and clogging, an anti-clogging detector should be installed at the head funnel. 4. Overload protection devices should be installed on flat belt conveyors with higher power ratings. 5. On long-distance or high-inclination flat belt conveyors, protective devices to prevent longitudinal tearing of the conveyor belt should be installed. 6. The walkways in the loading system and the electrical equipment in the transfer stations should be equipped with dustproof, waterproof, corrosion-resistant, and explosion-proof measures, taking into account the specific characteristics of the materials being transported.

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.