Applications
Sand/mineral ore/filter cake drying
River sand, molding sand, mining sand
Limestone, gypsum, potash, kaolin clay,
Coal drying
Lignite (brown coal, wood coal),coal slime
Animal feed drying
Green fodder (alfalfa) drying and pelletizing
Corn cobs
Brewery mash drying (spent brewers grain, distillers’ grain, beer meal residue, etc..)
Bean and potato dregs drying
Tapioca (cassava) residue
Industrial solid waste drying
Municipal sludge drying
Electroplating sluge drying
Paper mill sludge drying
Printing and dyeing and textile sludge drying
Leather sludge drying
House waste Drying
Food waste drying
Industrial solid waste
Steel mill solid waste drying
chemical industry solid waste drying
Industrial residue
Metal chips
Fruit Pomace (apple, grapes, etc.)
Beet pulp, bagasse
Pharmacy
Chinese herb residue drying
Poultry treatment
cow manure treatment / cow dung drying/organic fertilizer production
chicken manure / chicken dung drying/organic fertilizer production
other animal manure treatment and recycling
Wood drying
wood sawdust, wood chips, wood fibers, etc.
Description of Rotary Drum Dryer
The Rotary Drum Dryer is also called rotary dryer, rotary tube dryer, rotary cylinder dryer, widely used in the field of building materials, metallurgies, chemical industry, cement plant and so on. It can dry slag, coal, mining powder, clay, sand, limestone and so on. It is composed of rotary drum, lifters, driving device, supporting device etc. The dryer has advantages of reasonable structure, high efficiency, low energy consumption and convenient for transportation.
According to the basic structures of the Rotary Drum, it can be divided into three types: single drum dryer, double drum dryer and triple drum dryer. In our factory, single drum dryers and triple drum dryers are produced on daily basis.
| Triple Drum Rotary Dryer: | |
| Triple Pass Rotary Dryer has 3 drying zones in the 3 cylinders (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 cylinder where heating of the product is made, then moves to the middle cylinder 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 cylinder, passes through the middle and external cylinders. The hot air is then sent to the cyclone where dust is removed. | |
Advantages:
1. Heat efficiency improved 40%! 2. Coal consumption (as fuel) is 30% of conventional dryers! 3. shell temperature <=60 C, Exhaust Gas:<= 120 C. filter bags can work twice longer and no need for cooling! 4. Floor area reduced by 40%- 60%! 5. Lower investment for the same capacity! | |
| Single Drum 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 flight 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.
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 flights. 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 !
| Technical Data |
| Factory Introduction: |
Our drying equipment factory was established in 1950s with technology 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 technology 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 technology into our products selectively according to our current industrial circumstances 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. |
| Single Drum Rotary Dryer | Three Drum Rotary Dryer | Pre-dewatering Filter Press |
| Dry Mixed Mortar Equipments | Automatic Packing Machines |
| コンタクトパーソン : | MileyZhu |
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