Chemical Slurry Spray Dryer 50kg/h Corrosion Resistant 21500rpm Atomizer

Chemical slurries are harder on a dryer than food or dairy feeds: they are often acidic or alkaline, abrasive, and prone to depositing a hard scale on the tower wall that eventually blocks the cone. The LPG-50 chemical spray dryer addresses this with a smaller, faster atomizer and a corrosion resistant flow path. A 120 mm disk running at 21500 rpm produces a fine droplet from a slurry that would not atomize properly at lower speed, and the tower internals can be supplied in 316L or with a corrosion resistant coating for chloride bearing feeds.

Because the chemical spray dryer can be heated by electricity, steam, oil or gas, it fits plants that already run a kiln, a boiler or a thermal oil loop. Inlet temperature up to 350 °C gives the thermal head needed for a 50% solids slurry, while the outlet is held between 80 and 90 °C so that the powder leaves with 3% to 5% moisture and flows freely into a bag or a silo.

• 50 kg/h Evaporation Capacity: a compact chemical spray dryer for pilot scale and specialty chemical production, matched to a 50 to 70 kg/h liquid feed at 35% to 45% solids.
• 21500 rpm Disk Atomizer: the higher disk speed produces a finer droplet than a dairy unit, which is what allows an abrasive or high viscosity chemical slurry to dry into a free flowing powder.
• Corrosion Resistant Flow Path: 316L contact parts or an internal coating are offered for chloride, sulphate and acidic feeds, and the exhaust duct is sized for wet scrubbing.
• Multi Fuel Heating: electricity, steam, thermal oil, diesel or gas can be selected at order stage, so the chemical spray dryer matches the utilities already installed on site.
• Adjustable Particle Size: disk speed, feed solids and inlet temperature are set independently, so one unit covers a range of particle sizes and bulk densities for different customers.
• Wet Scrubber Option: a water film scrubber after the cyclone removes residual fines and absorbs acid mist, so the stack stays inside environmental limits.

The chemical spray dryer is specified across inorganic and organic chemical production:

1. Pigment and dye intermediate slurry, where a narrow particle size gives consistent tinting strength.
2. Catalyst carrier and zeolite slurry requiring spherical particles with controlled surface area.
3. Ceramic and refractory slip such as alumina, zirconia and kaolin granule for pressing.
4. Detergent, fertilizer and agrochemical intermediate drying with dust free discharge.
5. Battery material precursor slurry, where moisture and particle shape affect electrochemical performance.

Because the chemical spray dryer is supplied with a cyclone, an optional wet scrubber and a PLC that stores recipes per product, a specialty chemical plant can run several campaigns per month on the same skid without mechanical modification.

Why does this unit use a faster disk than a dairy dryer? A chemical slurry is usually more viscous and contains denser solids, so a higher shear rate is needed to break it into droplets. The 120 mm disk at 21500 rpm of this chemical spray dryer gives the required atomization energy in a compact tower.

Can abrasive slurry wear the atomizer? The disk and the nozzle are supplied in wear resistant alloy or ceramic faced versions for abrasive feeds, and the disk is a bolt on consumable designed for replacement in under an hour.

How is emission controlled? A cyclone recovers the coarse fraction and a water film scrubber absorbs the remaining fines and acid mist. The scrubbed water can be recycled to the feed tank when the chemistry allows.

What heating source should be selected? Electricity is simplest for small units, steam is cheapest when a boiler exists, and gas or oil is chosen for high evaporation rates. The chemical spray dryer is quoted per utility, so the choice is made at order stage.

The chemical spray dryer ships as tower, cyclone, scrubber, heater, fan and control cabinet in separate export plywood cases with all flanges match marked. Abrasive and corrosion resistant options are documented with material certificates, and the unit is tested for air volume, temperature control and atomizer balance before dispatch. The warranty covers 12 months on mechanical and electrical parts, and a two year kit with disk, nozzles, scrubber pump seals and filter elements is available with installation supervision.