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Working principle
The production process of expanded perlite includes two key processes of preheating and expansion.
(1) Preheating: According to the difference of origin and grain size, after the pearlite ore is preheated for 2-8 minutes at a temperature of 650-800 °C, the water content will reach the expansion requirement.
(2) Expansion: The pre-heated ore is evenly sprinkled onto the flame at a temperature of 1100-1200 °C through the feeding device. The ore will be heated rapidly and rapidly expand to 10-30 times the original volume. The expanded perlite The particles are white or light gray and contain a honeycomb structure inside.
(3) The expanded perlite enters the collection bin with the high-temperature gas separated by the cyclone separator, and the high-temperature gas containing a small amount of fine dust is discharged to the atmosphere by the bag dust removal device.

Expansion Furnace Our Services

1. Enquiries quickly reply within 24 hours.

2. After-sales service, rapid response, the engineer installation guide. The feedback problems will be replied within 24 hours. We can arrange professional engineers arrived at equipment location within 48 working hours for problem solved.

3. The dust collector design according to the specific condition of dust removal technology. The wind network project design for all system. To be the optimal structure design.

4. The lowest equipment price whole network in alibaba  Welcome to rate of the price. If our price is higher, we will return twice of our quoted price difference to you. Please prompt before sign the contract with us. Due to our good faith principle. 

5. The bag filter equipment over 20 years working life.

6. Associated with equipment spare parts, ensure the replacement parts within 20 years.