Rock wool production line speed automatic adjusting method and system

The invention belongs to the technical field of rock wool production, and particularly relates to a rock wool production line speed automatic adjusting method and system. Comprising a cupola furnace, a buffer barrel and a centrifugal machine, a siphon port is formed in the cupola furnace, a feeding port and a discharging port are formed in the buffer barrel, the feeding port in the buffer barrel is matched with the siphon port in the cupola furnace, the discharging port in the buffer barrel is matched with a feeding port of the centrifugal machine, a pressure sensor is arranged on the buffer barrel, and the centrifugal machine is connected with the pressure sensor. And the pressure sensor is used for detecting the weight of the rock wool melt in the buffer barrel and feeding back a signal to the controller. According to the scheme, the accurate volume-weight value of the rock wool melt can be calculated, and then the speed of the production line is adjusted according to the volume-weight value, so that the sp