According to the operating pressure

According to the operating pressure, dryer is divided into two categories, atmospheric dryer and vacuum dryer,

Microwave sterilization flour drying equipment

Microwave sterilization flour drying equipment

Operation can reduce the moisture of the space in the vacuum steam partial pressure and speed up drying process, and can reduce moisture boiling point and material drying temperature, steam is not easy to leak, so the vacuum dryer is suitable for drying heat sensitive, easy oxidation, explosive and toxic materials, and moisture vapor recovery.

According to the heating mode

According to the heating mode, dryer is divided into convection, conduction, radiation type, dielectric type etc. Convection dryer is also called the direct dryer, is using thermal drying medium, direct contact with the wet material in convective heat transfer, and the generated steam away; Conduction type dryer is also called the indirect dryer, it USES the conduction way by heat transfer heat to the wet material through metal partition, the generated moisture vapor available vacuum suction and ventilation with a small amount of purge gas or in a separate set of low-temperature condensation on the condenser surface method. This type of dryer do not use the drying medium, high thermal efficiency, the product is not contaminated, but drying ability is limited by metal wall heat transfer area, structure is more complex, often operating under a vacuum; Radiation type dryer is the use of a variety of radiator emits a certain wavelength range of electromagnetic waves, after being absorbed by the wet material surface selectively into dry heat; Dielectric type dryer is the use of high frequency electric field, the internal heating for drying wet material.

According to the wet material forms of exercise

According to the wet material movement way, dryer can be divided into fixed bed type, agitation type, spray and

Microwave drying equipment

Microwave drying equipment

Combined; According to the structure, the dryer can be divided into the van dryer, conveyor type dryer, rotary dryer, vertical dryer, mechanical agitator dryer, rotary dryer, fluidized bed type of drier, pneumatic dryer, vibration type dryer, spray dryer and combined-type dryer, etc.

Equipment selection edit

1. The material physical and chemical properties, morphology, water content, water content, water of crystallization, particle size, bulk density, viscosity and heat sensitive, softening point, phase transition point, thixotropy, toxic, corrosive, bad breath, breathable, electrostatic, flammable, explosive, reunion, crystal or particle crushing easily...

2. The drying characteristics of materials, in to choose dry conditions of drying curve, the critical moisture content, equilibrium moisture content.

3. The dry production requirements and vision.

4. The value of material goods and influence on the drying effect. Such as product moisture, pollution, temperature, wear and tear, pulverization, crushing, water... Such as the value of the goods.

5. The requirement of material recovery.

6. The material drying process and sequence of processes. (involving the to, discharge status method)

7. The material of the past drying method or similar products of drying method.

8. The available heat source (coal, oil, electricity, gas, liquefied petroleum gas, natural gas)

Size 9. Installation site, any special requirements.

10. Environmental requirements - for dust emission, noise, vibration, peculiar smell, volatile matter... Such as restrictive conditions.

11. May put purchasing, local labor, land, energy prices.

12. The user level of operators and maintenance ability.

13. The local average annual air temperature, humidity.

Application field editor

Petroleum and chemical industry: polymerization, condensation, distillation, melting, dehydration, forced heat preservation.

Oil industry: fatty acid distillation, fat decomposition, enrichment, esterification, vacuum deodorization.

Synthetic fiber industry: polymerization, melting, spinning, extension, dry.

Textile printing and dyeing work: hot finalize the design, drying, hot let dyeing.

Nonwoven industry: non-woven fabric.

Microwave sterilization drying equipment herbs

Microwave sterilization drying equipment herbs

Feed industry: drying.

Plastic and rubber industry: extrusion, calendering, extrusion, vulcanization molding.

Paper industry: dry, corrugated paper processing.

Wood industry: plywood, fiberboard forcing molding, wood drying.

Building materials: plasterboard drying, asphalt heating, concrete component maintenance.

Machinery industry: painting, printing drying.

Food industry: baking, heating.

Heating of the air conditioning industry, industrial buildings and civil buildings.

Microwave vacuum drying equipment

Microwave vacuum drying equipment

Construction industry: asphalt melting and heat preservation.

Pharmaceutical industry: drying.

Light industry: the production of printing ink, washing powder.