Features of the enclosed dryer: adopting a large-area interlayer heating method; Large heat transfer surface; High thermal efficiency. This machine is equipped with stirring; Create a continuous cycle of materials inside the cylinder; Further improved the uniformity of material heating. This machine is equipped with stirring; So that the slurry can proceed smoothly; Dry paste like and paste like materials.


Application: Drying of materials in pharmaceutical, food, chemical and other industries, suitable for paste, paste, and powder materials. Heat sensitive materials that require low-temperature drying; Easy to oxidize, explosive, highly irritating, and sawtooth toxic materials; Require the recovery of materials containing organic solvents.


Principle of enclosed dryer: It is a novel horizontal intermittent vacuum drying equipment; Wet materials evaporate through conduction; Equipped with a scraper mixer to continuously remove materials from the hot surface; And push it inside the container to form a circulating flow; After the water evaporates, it is extracted by a vacuum pump.


Selection of dryer


① The original shape of materials includes particles, powders, particles, sludge, crystals, liquids, pastes, suspensions, solutions, continuous thin sheets, thick plates, irregular materials (small or large), viscous or blocky shapes, etc.


② The average output includes the continuous operation of feeding quantity or finished products, intermittent operation of feeding quantity or finished products, and their adjustment range.


③ The average particle size, particle size distribution, particle density, volume density, rehydration ability, etc. of the finished product particles.


④ Material inlet and outlet moisture content on dry and wet basis.


⑤ Material properties, chemistry, biochemistry, microbial activity, thermal sensitivity (melting point, glass transition temperature), moisture absorption isotherm (equilibrium moisture content), etc.


⑥ The influence of drying time, drying curve, and operating parameters.


⑦ The contact mode of the heater (direct or indirect).


⑧ Fuel selection includes steam, coal, electricity, oil, and gas.


⑨ Drying auxiliary equipment such as fans, dry dust collectors, wet dust collectors, feeders, feeders, finished product cooling and conveying devices.


⑩ Special requirements include material composition, corrosiveness, toxicity, non hydrophilic solution, flammable and explosive limits, ignition point, color, structure, and fragrance requirements.


⑩ The floor area of the drying system's drying equipment and ancillary equipment. Equipment installation and debugging process and general requirements.