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For grid belt conveyors, designing an effective control system means achieving half the success; therefore, the control system of belt conveyors is crucial for a company’s production operations. The control system for the grid belt conveyor is a key component in the overall design of the machine. In mechanized transportation systems, when the start or stop of a particular conveyor affects the equipment located before or after it, interlock control should be implemented; whereas if the start or stop of a device has no impact on other devices, it is not necessary to include it in the interlock system. The operating procedure for the interlock of the flat belt conveyor is as follows: 1. Start the flat belt conveyor from the final device in the transportation system, in the opposite direction to the material flow, one at a time ； 2. When shutting down a flat belt conveyor, the sequence is the reverse of that for starting it: first, stop the feeding equipment, and then, starting from the first device in the conveying system, shut down the devices one by one in the direction of material flow, thereby ensuring that all the material on the devices is emptied as much as possible, to avoid problems when starting the conveyor again. 3. When a fault occurs in one of the devices on a flat belt conveyor, all devices ahead of it should stop operating immediately, while the devices behind it shall continue to function until the material is emptied. 4. The crushing equipment on the interlock line of the flat belt conveyor is generally started first; it shuts down with a delay when the system stops operating. 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 all material has been emptied. 5. The dust removal equipment in the flat belt conveyor system should be started first; only after it is operating properly can the flat 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 devices 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. A pull-cord emergency switch or a fixed emergency switch should be installed on the side of the flat belt conveyor. Fixed accident switches should be installed every 15–20 meters. 2. To ensure the safe operation of the grid belt conveyor and to monitor its performance, devices such as belt deviation switches, belt breakage controllers, and slip detectors 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. For the walkways in the flat-belt conveyor loading system and the electrical equipment in the transfer stations, dustproof, waterproof, anti-corrosion, and explosion-proof measures should be considered based on the specific characteristics of the materials being conveyed.