Perlite production equipment mainly comprises a 
raw material pit, an 
elevator, a rotary 
drying kiln, an expansion furnace, a dust remover, an induced draft fan, an 
air volume regulating valve, a 
settling chamber, a finished product bin, a 
cyclone material collector, an 
air blower and a communication air 
pipe. The lower end of the 
elevator is positioned in the 
raw material pit, the upper end of the 
elevator is connected with the rotary 
drying kiln, a 
discharge outlet of the rotary 
drying kiln is connected with a feed inlet of the expansion finance, the rotary drying kiln is communicated with the dust remover by a pipeline, the dust remover is connected with the induced draft fan by an air 
pipe and communicated with the expansion furnace via the 
air volume regulating valve, the expansion valve is communicated with the 
settling chamber, the 
settling chamber is communicated with the 
cyclone material collector, one side of the 
cyclone material collector is communicated with the finished product bin by an air 
pipe while the other side of the cyclone material collector is communicated with the 
air blower, the cyclone material collector is further communicated with the rotary drying kiln by an air pipe, and an integral 
system is in a closed-
loop control state. The 
perlite production equipment is fast in temperature rise and easy in 
temperature control, ignition loss of a furnace body is little, the service life of the 
perlite production equipment is prolonged, expansion efficiency is improved, 
energy consumption is low, 
utilization rate is high, repair 
workload is low, 
automatic control is realized, labor is saved, an 
operating environment is enhanced, and emission of 
greenhouse gases is reduced.