Changzhou ZHENXING Environmental Technology Engineering Co., Ltd.,this is Drying Equipment manufacture. We are specialized in development, manufacturing, and installation of dryers, mixers, granulators, grinders, conveyors, sieve and etc.
We follow a strict quality control procedure and we provide high quality products with prompt after sales services and technical supports.
Our products have been exported to North America, Pakistan, India, Philippines, Thailand, Nigeria, South Africa, Mexico, Colombia, Australia, Egypt, Vietnam, Russia, and other countries. We truly believe that honesty, credibility, and integrity are the keys to build a widely successful business! We are strictly complying with the international technical standards and quality management systems and we became the leading company in the drying equipment industry. We also dedicated in the environment protection and energy conservation industry. Our company mission and top priority is to be our customer’s best business partner by consistently providing quality products and good after sales service. We will keep continuous improvement to our products and services in order to provide high quality equipment to our customers We are providing the continuous training programs and safe working environments to all of our employees and we are making our best efforts to ensure the development of the company.
In a fluid bed dryer, good contact between hot air and particles to be dried so obtained which causes rapid drying.
Theory: If a gas is allowed to flow up wards through a bed of solids particles at a velocity greater than the setting velocity of the particles, the particles are partially suspended in the gas stream.
The resultant mixture of solids and gas gehave like a liquid and the solids are said to be fluidised. Each individual solid partilces is surrounded by the drying gas with the result that the drying takes palce in a much shorter period.
Mover over the intense mixing between the solids and hot provides a uniform conditions of temperature, composition and particle size distribution.
In the fluidized bed dryer, hot air or gas is passed at high pressure through a perforated bottom of the container containing granules to be dried.
The granules are suspended in the stream of air and are lifted from the bottom. This condition is called fluidized state.
The hot air is surrounded every granules to completely dry them. Thus materials or granules are uniformly dried.
The wet granules to be dried are placed in a detachable bowl. The bowl is pushed in to the dryer. Fresh air is allowed to pass through a prefilter, which subsequently gets heated by passing through a heat exchanger.
The hot air flows through the bottom of the bowl. Simultaneously fan is allowed to rotate. The air velocity is gradually increased. When the velocity of the air is greater than the settling velocity of granules, the granules remains partially suspended in the gas stream.
After some times a point of pressure is reached at which the frictional drag on the particles is equal to the force of the gravity. The granules rise in the container because of high velocity gas 1.5 to 7.5 m per min and later fall back in a random boiling motion.
This condition is said to be fluidised state. The gas surrounds every granules to completely dry them. The air leaves the dryer by passing through the bag filters. The entrained particles remain adhered to the inside the surface of the bags. Periogically the bags are shaken to remove the entrained particles.
Intense mixing between the granules and hot gas is provided uniform conditions of the temperature, composition and particle size distribution. Drying is achieved at constant rate and falling period is very short. Any attempt to increase the air velocity may result in entrainment.
The residence time for the drying is about the 40 min. the materials is left for the some times in the dryer for reaching ambient temperature. The bowl is taken out for the discharging. The end product is free flowing.
This dryer is widly used for drying, cooling, wetting of the products in light industry, chemical industry, pharmaceutical industry, foodstuff,and etc.
Design and production We solicit buyers opinions widely at the design and production stage of equipment; especially at the stage of plan and elevation arrangement, we give full consideration to buyers’ site conditions and public engineering conditions, and pay concurrent attention to the optimum combination when assuring the quality of equipment. Installation and commissioning After the equipment is delivered to buyers factory, we will dispatch full-time technical personnel to instruct buyers’ installation and to take charge of commissioning until normal use of the equipment. Training Before buyers use our equipment normally, our commissioning personnel will organize buyers’ relevant personnel to accept training, which covers the maintenance and care of equipment, timely repair of common faults, and procedures for operation of equipment. Warranty We provide one-year warranty for our equipment. For damage of equipment arising from non-artificial factors within the warranty period, we will provide repair service for free; and for damage of equipment arising from artificial factors, we will provide repair service in time and collect corresponding cost. Maintenance and period For damage of equipment after expiration of warranty period, we will provide on-site repair service within 24h/48h for enterprises inside/outside the province after receiving buyers’ notification. The service provided after expiration of warranty period is fee-based, and flat cost will be collected each time when the service is provided.
The Onions belt dryer equipment
This is belt dryer are customized to the Indian customer, Heat source：Steam