Hollow spiral slurry vacuum dryer

Product description

Hollow spiral slurry vacuum dryerIt is a hollow spiral drying equipment that has been modified and optimized based on the absorption of domestic and foreign XJ technology. Its unique structure and working principle determine that it has the characteristics of high thermal efficiency, low energy consumption, small footprint, simple configuration, convenient operation and control, and good operating environment. It is widely used in drying operations in industries such as chemical, pharmaceutical, pesticide, food, and feed, and has been highly praised in practical use in various industries. We currently produce four types of products: atmospheric pressure batch, atmospheric pressure continuous, vacuum batch, and vacuum continuous. The materials used are A (carbon steel for outer packaging, stainless steel for contact material parts) and B (stainless steel for steam pipelines, outer packaging, and brackets added to A), and we can provide various auxiliary equipment to meet the drying needs of users for various materials.

working principle

Hollow spiral slurry vacuum dryerBy using a specially designed hollow spiral inside the device, the flow state of materials and their residence time inside the device can be controlled. The main components of the equipment include: spindle (hollow), spiral blades (hollow), wall surface (semi tubular), etc; The shell is W-shaped, and two hollow spiral shafts are generally arranged inside the shell; The shell has sealed end caps and upper caps to prevent material dust leakage and fully exert its function. According to the temperature requirements of the material, different media can be selected for heating, such as hot water, steam, and thermal oil. The heat transfer medium flows through the shell jacket and hollow spiral shaft through the rotary joint. The characteristics of heat transfer, cooling, and stirring of the equipment enable it to perform the following unit operations: drying (solvent recovery), heating (melting), cooling, and mixing. The material input can be fed continuously or in batches through a dedicated feeding device, and the residence time of the material can be controlled by operating the speed of the screw to achieve the final drying goal.

Product Features

Energy saving: Due to indirect conduction, most of the energy is absorbed by the material.

Environmental Protection: No use of portable air, minimal dust material entrainment, all emissions are solvents, and solvents can be recovered through heat exchangers; For materials with pollution or operating conditions that require solvent recovery, closed-loop circulation can be used to achieve zero emissions

Low cost: The unit has a huge heat transfer surface within its effective volume, and the equipment size is small, reducing the building area and space on the ground. The whole machine leaves the factory and is easy to install.

◎ Wide range of material processing: using different heat media, it can handle both thermosensitive materials and materials that require high-temperature treatment; It is also suitable for materials that are prone to oxidation, flammable and explosive, as well as materials that require solvent and toxic gas recovery. Common media include steam, thermal oil, hot water, cooling water, etc. It can be operated continuously or dried in batches, and can be applied in many fields.

Low operating costs: The device is easy to operate, with convenient material entry and exit, greatly reducing the labor intensity of workers; At the same time, it also reduces the environmental pollution of materials during the drying process and improves product quality; Reasonable equipment structure reduces maintenance costs.

Scope of Application

Plastic, resin products, inorganic products, fertilizers, feed, food, synthetic fibers, dyes, starch, small water pipe sludge, resin, nylon, polyethylene, polypropylene, starch, sodium chloride, sugar, iron oxide, feldspar, caustic soda powder, soda ash, etc.

Technical Specifications

Note: Some parameter designs may be adjusted based on different materials, and parameter changes are not notified in advance.