Pneumatic Conveying Systems are efficient bulk-material handling solutions designed to convey ash and other powdered or granular materials through pipelines using compressed air. Widely used in ash handling systems of coal-fired, bagasse-fired, and biomass-fired power plants, they transfer ash from pre-heater, economizer, ESP, bag house, or MDC to silos or disposal points safely and dust-free. The system supports high-capacity continuous conveying and long distances up to 2000 meters, even at ash temperatures around 250°C. With flexible control options, customizable vessel sizes, and quick installation, these systems reduce operating costs, improve plant cleanliness, and allow easy troubleshooting or future expansion.

Rotary Airlock Valves, also known as rotary feeders, are designed for accurate and continuous discharge of bulk materials from hoppers, silos, cyclones, bag filters, and pneumatic conveying systems while maintaining an effective airlock. The rotating vane rotor delivers uniform material flow and prevents air leakage between pressure zones, improving system efficiency and dust-free operation.

These valves are suitable for abrasive and high-temperature applications across cement, clinker, gypsum, fly ash, sinter dust, sponge iron, coal dust, and similar industries. Available in fabricated or cast construction with multiple flange shapes and optional abrasion-resistant linings, they are engineered for long life, reliable sealing, and smooth operation even under demanding conditions.

Slide Gate, also known as a Knife Gate Valve, is designed for reliable shut-off and flow control of abrasive bulk solids in hoppers, silos, chutes, and conveying systems. The gate moves linearly to isolate or regulate material flow while maintaining a robust seal. With more than 30 years of proven use in bulk solids industries, these slide gates are supplied in standard and tailor-made configurations for cement, coal, power plants, paper, sugar, chemical, and steel sectors.

Manufactured in fabricated or cast construction with multiple flange options and abrasion-resistant linings, the valve delivers long service life and dependable operation under demanding conditions. Low profile design simplifies installation, and optional manual, motorized, or pneumatic drives allow easy automation. Graphite gate seals with adjustable retainers provide strong, long-lasting sealing to reduce leakage and downtime.

Double Cone Valves hold a prominent position in bulk solids handling due to their ability to provide controlled feeding while maintaining airtight sealing between the collection chamber and conveying equipment. The twin-cone design ensures smooth material discharge with minimal air leakage, improving pneumatic conveying efficiency and preventing dust escape. These valves are widely used in abrasive material applications such as cement, clinker, gypsum, fly ash, sinter dust, sponge iron, and coal dust.

Fabricated from robust mild steel or stainless steel casings with wear-resistant cones, the valve is engineered for long life under high temperature and abrasive service. Optional abrasion-resistant linings and geared motor cam drive provide reliable operation, accurate discharge control, and low maintenance.

Double Cone Valves hold a prominent position in bulk solids handling due to their ability to provide controlled feeding while maintaining airtight sealing between the collection chamber and conveying equipment. The twin-cone design ensures smooth material discharge with minimal air leakage, improving pneumatic conveying efficiency and preventing dust escape. These valves are widely used in abrasive material applications such as cement, clinker, gypsum, fly ash, sinter dust, sponge iron, and coal dust.

Fabricated from robust mild steel or stainless steel casings with wear-resistant cones, the valve is engineered for long life under high temperature and abrasive service. Optional abrasion-resistant linings and geared motor cam drive provide reliable operation, accurate discharge control, and low maintenance.

UNICON Clam Shell Gate and Sector (Gear) Gate Systems are rugged flow-control solutions for bulk material handling. Designed for high-temperature, adhesive, and abrasive materials, the clamshell mechanism provides reliable on-off control and accurate regulation of solids discharge from bins, chutes, silos, and conveying lines. All material-contact surfaces can be lined with Hardox 200, 400, or 500, or other wear liners based on duty, ensuring long service life in severe applications.

Sector Gate Systems are engineered with welded, precisely timed gear sets that minimize stress on teeth and eliminate lubrication needs. Once aligned, gear sets are welded in place to avoid future adjustments, and gate blades can be assembled or serviced without disturbing timing. PLC-based actuation enables controlled opening for smooth material flow. Fabricated from minimum 6 mm mild steel plate and reinforced as required, with AWS-standard welding and robust pivot shafts, these gates deliver dependable performance with low maintenance.

Drag Chain Conveyor is a bulk material handling conveyor in which open chain links with fixed flights drag material along the bottom of a specially designed trough from the feeding end to the discharge end. The flights run between two strands of alloy steel chains and convey material in an open or fully sealed trough, making the system dust-proof, low-noise, and safe for plant environments.

These conveyors are suitable for handling slightly sluggish, loose, lumpy, or hot materials and are designed for both horizontal and inclined transport up to 60°. Units can be supplied in various widths and lengths as per site requirements, with single or multiple inlets and outlets positioned along the conveyor path. Casing and internal liners are selected based on application, using carbon steel, stainless steel, or other suitable materials. The forged alloy steel chains are machined and heat-treated for high strength and wear resistance, and matching sprockets are case-hardened for long service life. Flights are bolted or welded to the chain links in shapes suited to the conveyed material.

Screw conveyors transport bulk materials continuously using a rotating helical screw blade (flights) inside a U-shaped trough or round tube. Material moves forward by shear and tumbling action, making the system ideal for powders, fines, crushed solids, coal, cement, chemicals, and other bulk materials.

UNICON has a proven record of installing screw conveyors for diverse industries, delivering efficient, reliable, and customized solutions. Conveyors are available with variable pitch, cut flight, ribbon flight, or cut-and-folded flights to suit different materials and flow characteristics. For abrasive service, hard facing can be provided on the leading edge of flights. Long conveyors use intermediate hanger bearings to control sag, and angular speed is selected carefully to prevent wobbling. For high-temperature duties, jacketed troughs and box flights with circulating cooling water can be supplied. UNICON standard designs are manufactured in carbon steel or stainless steel depending on operating conditions.