Coal conveyer emergency braking device and method

Abstract

The invention discloses a coal conveyer emergency braking device and method. The coal conveyer emergency braking device comprises a coal conveyer remote console and a plurality of emergency braking devices. Each emergency braking device comprises a support, a braking mechanism, an infrared detector and a control box, wherein the braking mechanism is matched with auxiliary rollers. Each braking mechanism comprises a vertical rod, an electric pulley and a mechanical arm. One end of each vertical rod is fixed to the corresponding support, each electric pulley is installed at the other end of the corresponding vertical rod in a rotating mode and makes contact with a coal conveyer belt, and each mechanical arm is used for pressing the coal conveyer belt. Each infrared detector comprises an infrared emitter and an infrared receiver. The coal conveyer emergency braking method comprises the steps that firstly, the running state of a coal conveyer is monitored; secondly, whether the coal conveyer belt is broken or not is judged; thirdly, an audible and visual alarm is given, and emergency braking of the coal conveyer is conducted; and fourthly, the coal conveyer is braked. According to the coal conveyer emergency braking device and method, the breakage position of the belt is detected through the infrared detectors, and positioning is accurate; and the mechanical arms and the auxiliary rollers are matched to press and clamp the coal conveyer belt, so that emergency braking of the coal conveyer is achieved.

Description

technical field [0001] The invention belongs to the technical field of braking of a coal transporter, and in particular relates to an emergency braking device and method for a coal transporter. Background technique [0002] An important link in coal mine production is the coal mine transportation system. At present, the coal mine transportation system mainly adopts belt transportation. In coal mine transportation, the belt conveyor generally needs to carry out long-distance, long working hours and heavy transportation work. Due to problems such as uneven force on the belt, offset of coal falling position, and large transportation inclination angle during use, the belt may slip. , deviation, broken belt, etc. When the belt suddenly breaks due to overload, aging and other quality problems and improper operation, the tight belt will slide down quickly due to the break, and even fly out to hit the staff, and a large number of scattered coals will also hit the staff and workers....

AI Technical Summary

Problems solved by technology

In coal mine transportation, the belt conveyor generally needs to carry out long-distance, long working hours and heavy transportation work. Due to problems such as uneven force on the belt, offset of coal falling position, and large transportation inclination angle during use, the belt may slip. , deviation, broken belt, etc.

When the belt suddenly breaks due to overload, aging and other quality problems and improper operation, the tight belt will slide down quickly due to the break, and even fly out to hit the staff, and a large number of scattered coals will also hit the staff and workers. equipment, threatening the safety of personnel and damaging nearby equipment and facilities, causing huge economic losses

At present, the technologies that have been proposed are basically alarm devices for belt breakage, and the monitoring range is too wide to accurately determine the specific breakage point of the belt, which is not conducive to emergency treatment after breakage

Moreover, most of the relevant technologies only have an alarm function, and there is no protection function for emergency treatment of broken belts.

Images