(1) Vacuum Dryer
A vacuum dryer operates by reducing the pressure around the material, allowing moisture to evaporate at lower temperatures. This process involves internal moisture diffusion, evaporation, and sublimation, resulting in a low-temperature, low-pressure drying method. The advantages of vacuum drying include reduced heating temperatures, better resistance to oxidation, uniform moisture distribution, superior product quality, and easier control over the drying process. It is widely used across various industries due to its versatility and efficiency.
(2) Adhesion Dryer
Also known as a drum dryer, this type of dryer features a rotating heated cylinder partially submerged in a trough. As the drum rotates, the liquid material adheres to its surface and is dried by the heat from the drum wall. Once dry, the material is scraped off using a blade. This method offers high thermal efficiency and can operate under vacuum conditions, making it ideal for materials that are fragile or can be re-dissolved after drying. It is particularly suitable for processing solutions, slurries, or pastes, with relatively short drying times and moderate production capacity.
(3) Freeze Dryer
Freeze drying involves first freezing the material and then removing the ice through sublimation under vacuum conditions. Since the entire process occurs below the freezing point, it is commonly used for heat-sensitive substances that could degrade under normal drying methods. However, the process requires significant energy for refrigeration and vacuum systems, leading to higher operational costs. Despite the slower drying rate, freeze drying preserves the active components of the material with minimal loss, making it an excellent choice for pharmaceuticals and biological products.
(4) Vacuum Oven
A vacuum oven is designed to reduce the evaporation temperature of volatile substances within the material by creating a low-pressure environment. This makes it ideal for drying heat-sensitive or easily oxidized materials. Typically constructed as a cylindrical or other vacuum-sealed chamber, it is heated using electric elements, hot water, or heat transfer oil. Due to its design, it is best suited for small-batch production where precise temperature control is necessary.
(5) Double Cone Rotary Vacuum Dryer
This type of dryer has a slightly oval-shaped body with two ends covered and a central shaft supporting the structure. The outer shell is jacketed for heating, and the body rotates during the drying process, ensuring continuous contact between the material and the heated walls. This rotation improves heat transfer efficiency compared to traditional vacuum ovens, which rely mainly on conduction from heating tubes. These dryers are widely used in the pharmaceutical and chemical industries but are not suitable for highly viscous or sticky materials that may cling to the walls during rotation.
These are the basic types of common drying equipment. There are many variations and newer models being developed, which will be discussed in more detail in the following sections.
Plain Weave Wire Mesh
Stainless Steel Wire Mesh is made of 304,304L,316,316L,310,310S and other metal wire, the woven wire mesh with smooth surface ,corrosion resistance, non-toxic, health, environmental protection.
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Application:
Hospital, Cooked wheaten food, Barbecue,Wire Mesh Basket and so on.
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Production Description :
Classified by variety:Stainless steel wire mesh, Plain weave wire mesh, Twill weave wire mesh Welded Wire Mesh,Expanded metal mesh, Crimped wire mesh.
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Material :SUS302 ,304,304L,316 316L etc.
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The stainless steel with heat resistance, acid resistance, corrosion resistance and durable. Due to these features,the stainless steel wire mesh widely used in Mining, chemical, food, oil, medicine and other industries, mainly used for gas, liquid filtration and separation of other media.
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