The product corresponding to the measurement range should be selected according to the actual moving speed of the measured coal mining scraper conveyor; usually, when the conveyor is operating normally, the belt's linear speed is about 2.5-4 m/s, and the roller speed is about 50 -300 rpm. At the same time, in addition to comparing the speed of the roller with the speed of the conveyor belt, and comparing the comparative types of slide switches, it also provides a product that can automatically avoid the low-speed state when the conveyor belt starts. Since the slip alarm of the coal mining scraper conveyor is actually a low-speed alarm, the slip alarm should be prevented during the start of the conveyor. You can use the delay detection method when the conveyor belt starts (that is, the delay is delayed from the start of the conveyor belt, and the operating power of the slide switch is turned on after the conveyor belt reaches the conveyor belt. Normal speed), but it is very troublesome to implement.
Some products will automatically avoid low-speed operation when the coal mining scraper conveyor starts: when the conveyor starts, the conveyor will power the slide switch. After the slide switch is powered on, it will start to detect the belt speed normally after a period of time. Try to display actual speed and remote display. Products that transmit speed signals.
Choose the appropriate installation method according to the product type; the non-contact sliding switch should be installed far away from strong electromagnetic field interference and covered with a metal cover. The setting of the slip alarm value should be set after the actual measurement; the speed parameter of each belt conveyor is usually different, and the actual belt running speed is also affected by the installation method and structure of the scraper conveyor, so each The scraper conveyors must be set up one by one. The alarm value of the machine's slide switch.
By installing two protection devices, a steering switch and a sliding switch, the sliding switch can effectively reduce the possibility of coal mining scraper conveyor failure, reduce downtime, and better protect transportation equipment and personnel.
