Features	Benefits
Capacity	Flexibility : from 5 to 15 m3/hour
Final product range Expanding process	Possibility to get various final product densicty from 45 to 100 kg/m3 Possibility to control particle size distribution Expanding of perlite with the help of vertical kiln with continuous operation Special stanless steel material for perlite expanding kiln that guarantees long operation life
Energy Consumption Plant Design	Very economical and environmentally friendly due to the use preheating system where perlite kiln is used as self-heat exchanger for combustion air Possibility to use different fuels as natural gas, diesel, LNG and LPG Flexible layout design: Horizontal and Vertical
Electrical and automation Technical process	Controllable, secure and easy in use process Completelly automatic control system Low operation cost due to low number of staff involved. Different method of packing and feeding to existing factory No production waste

Parget Perlite Production Line Process Description




To produce expanded perlite, we use dried perlite sand with a fraction approximately 0,1 - 0,63 mm (other fractions also possible) and expansion rate minimum 15 times. Raw perlite is delivered to the factory in big-bags and with the help of hoist it is vertically conveyed to the up and discharged to the raw material bin 1  .It is also possible to feed raw material with a pneumatic feeding system.

Through the weighing and dosing belt conveyor 2 , raw perlite is dosed and fed to the vertical expanding kiln 3  .This dosing belt conveyor and diverting device that are integrated between the kiln and the belt conveyor, enable stable and accurate feeding of raw perlite to the kiln, to have maximum coverage and contact of raw material with flame and expanding rate.

Feeding of raw material to the kiln body is done from four inlets. Perlite contacts directly with flame, very quickly reaches a temperature up to 850-100 C and expands. Expanding process is continuous and can continue non-stop for a 24 hours operation. For the expanding of perlite, we use a gas rack and automatic burner that enable the production of energy and flame with needed capacity, temperature, and flame length.

After expansion, expanded perlite is sucked from kiln with special designed fan 4  . Finally, perlite will pass through and will be transported with help of airtrough cyclone 5  and jet pulse filter 6   and fed to the storage silos 7  . Jet pulse filter has a special design and works with on-off principle.

Under the storage silo there is a pneumatic dens conveyor 8  , which is used for the feeding of final product to the existing dry mortar or any other construction material production plant. Also, with the help of volumetric big-bag filling system it is possible to fill expanded perlite to the big-bags 9  and deliver to other Customers of facilities.

With the help of a high level of automation and computerized operation system, all stages of the process are controlled automatically and monitored on the SCADA

software system. Thanks to the flexible operation software and electrical solutions, it is possible to operate some equipment in different speeds and regimes and produce expanded perlite with different density and capacity. With the help of the preheating system, air that is used for the combustion, pass through the inner shell of the kiln, preheated, and fed to the burner where it is used as combustion air.


Perlite Production Line’s Units



1  Raw material storage unit

• Variable feeding options are possible such as from silobas trailer, big bags, other pneumatic or mechanical conveying equipment depending on the material outsource method.
• Minimum dust occurs during the discharge of big bags to the storage bin.
• Operator friendly level follow up system from Scada
• To extend the life time of storage silo, properly choosen manufacturing material according to the characteristic of perlite.

2  Expanding unit

• Low fuel consumption due to its energy efficient design by means of preheating system where perlite kiln is used as self heat exchanger.
• High temperature resistant and flexible mechanical design depending on the temperature up and / or down and perlite expansion temperature.
• Homogenues heat distribution during the expansion of perlite due to special inner design .
• Air combustion can be controlled automatically from the SCADA system with a servomotor located at the combustion air inlet of the burner.

3  Dosing unit

• Accurate and stable weighing in required capacity and tolerance.
• Material feeding is done with equal volumes to each material inlet of the kiln which enables the perlite homogenues expansion.
• Easy production data reporting system.

4  Final Material storage and filling Unit

• Variable stocking volume capacity options are available
• Operator friendly level follow up system from Scada
• Minimum dust occurs during filling processes.
• Variable discharging options from silos are possible such as to big bags for customer sales or via pneumatic conveying equipment feeding of final product to the existing dry mortar or any other construction material production