Professional Rotary Dryer Special Offer 5% Off

Conventional thermal sterilization is carried out through heat conduction, convection or radiation to heat the food surface to the inside. To achieve the sterilization temperature, it often takes a long time. Microwave sterilization is a direct interaction of microwave energy and food and its bacteria. The interaction between heat effect and non thermal effect is faster than temperature and sterilization. The treatment time is greatly shortened, and the sterilization effect of various materials is usually 3-5 minutes.

Professional Rotary Dryer Special Offer 5% Off of traditional Chinese medicine, also known as microwave traditional Chinese medicine dryer, microwave traditional Chinese medicine drying equipment, microwave medicine drying insecticidal, the same type of industrial microwave equipment, apply to heat-sensitive Chinese medicine, and valuable health herbs such as ginseng and other herbsdrying, sterilization processing.

Tunnel microwave herbs dryer is for drying and sterilizing medicinal materials and pills,for drying and sterilizing and heating materials in strip shape, cube shape,small&round shape,leaves type, powdery form as well as filter cake which have high water content and certain and certain viscosity. It is also used for sterilizing medicinal liquid before and after packing.

60 Years' Experience

Over 8, 000 Sets Sold Across the World !

Rotary Dryers in

Single-Pass or Triple-Pass Designs

Rotary dryers are most commonly seen in drying bulk solids of various kinds from food and specialty chemicals to minerals fertilizers and etc.. The drying takes place in rotary dryers, which consist of a cLDindrical shell rotated upon bearings and usually sligLDly inclined to the horizontal. Wet feed is introduced into the upper end of the dryer and the feed progresses through it by virtue of rotation, head effect, and slope of the shell and dried product witLDrawn at the lower end.

Reguarly made rotary dryers in our plant are classified as single pass Rotary Dryers and triple pass Rotary Dryers according to its basic structures of cLDinder shells.

Single Pass Rotary Dryer:

Generally, single pass rotary dryers are old drying technique but they are still widely in use due to their low manufacturing, operating and maintenance cost. Recent years, our single pass rotary dryers have been upgraded with more efficient heating system, better internal fligLD design, improved wear resistance on critical parts, making the drying system even more durable and efficient.

According to the flow direction of hot air, it can be divided into two types co-current and counter-current as shown below:

Co-current flow is used for heat sensitive materials even for high inlet gas temperature due to the rapid cooling of the gas during initial evaporation of surface moisture, whereas for other materials countercurrent flow is desirable in order to take advantage of the higher thermal efficiency that can be achieved in this way.

Comparison Chart of Single Shell Rotary Dryers in counter current /co-current air flow

Triple Pass Rotary Dryer:

Triple Pass Rotary Dryer has 3 drying zones in the 3 cLDinders (internal one, middle one and external one) which construct the rotating body. Heat processing of a product with high moisture content is done efficiently in those 3 drying zones. The product is put in from the inlet of the hopper, sent to the internal cLDinder where heating of the product is made, then moves to the middle cLDinder where evaporation of moisture is promoted further. The solid constituent of the product is gradually broken into pieces and discharged from the outlet via the third final drying zone. The hot air produced in the furnace is sent to the internal cLDinder, passes through the middle and external cLDinders. The hot air is then sent to the cyclone where dust is removed.

1. Heat efficiency improved 40% 2. Coal consumption (as fuel) is 30% of conventional dryers. 3. shell temperature 4. Floor area reduced by 40%- 60% 5. Lower investment for the same capacity

Various FligLD Designs for Rotary Dryers when Drying different types of materials(Example: a is suitable for sticky material)

Different Types for FligLD Designs for Rotary Dryer	Cascade Motion of Materials in Rotary Dryer

To ensure that the dryer is loaded close to optimal, it is important to know the amount of solids that can be held up in the fligLDs. If they are underfilled, the dryer will be performing inefficiently, below its capacity. Excessive overload of the shell will result in a

proportion of the material transported by kiln action,and the contact with the hot gases is limited. The residence time of the solids will be reduced and the quality of the product may be unacceptable.

Please contact us for a suitable rotary dryer design for your material !

Our drying equipment factory was established in 1950s with technoloLD assistance from Russian experts. Since then the factory has never stopped pursuit of upgrade of our drying equipment, many specially designed dryers for challenging materials had been developed during even 1960s-1970s without any outside help. The spirit of constant pursuit on technoloLD upgrade and commitment to quality and process optimization had passed on from generations to generations.

Today, with an open mind and eagerness to better serve customers, we had learned from western counterparts, integrated European technoloLD into our products selectively according to our current industrial circuLDtances in China based on our past experiences, which makes our products more effective, competitive and much easier for customers to accept. We are proud of products that had provided numerous businessmen new opportunities and even more workers jobs, all of which had been indispensable in our social welfare improvement and industrial development.

Time had witnessed our growth and we shall never cease to change times with our products.

To all ambitious and hardworking entrepreneurs all over the world, we offer our products to change your tomorrow for the better and better. Please give us a call for your requests. We are at your disposal at any time.

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