Dosing of chemicals in the production of silicones

Skid unit for storage and dosing of key chemical compounds in silicon production.

System Description

The process begins with the connection of barrels for nitrogen blanketing and pumping the input material using a stainless steel AODD pump into a storage tank, which is also inerted with nitrogen and placed on a strain gauge scale.

Dosing is provided by a piston-diaphragm pump
with the possibility of partial recirculation back into the tank
for stable displacement. The unit is structurally adapted for installation in an ATEX container.

SYSTEM PARAMETERS

Flow rate: 3.5–90 m³/h
Pressure: 3 bar
Medium: Siloxan VSI 2
Medium concentration: 100 %
Medium temperature: 20 °C
Viscosity: 0.6 cP
Tank capacity: 350 l
Height: 2.5 m
Footprint: 1.45 × 1.2 m
Weight: 350 kg
Materials: Stainless steel 1.4571
Certifications: ATEX zone II

Used components

B+L Novados H1, Sandpiper S05 metallic, Mettler-Toledo strain gauges, 350l supply tank

Features

Dosing in a ratio of 1:25 thanks to the combination of frequency converter and electro-pneumatic stroke adjustment