Focus on heavy equipment
Focus on heavy equipment
Papaya is a native to tropical regions of Americas and cultivated originally in Southern Mexico. Nowadays, it is cultivated in most tropical regions of the world. Generally, the papaya fruit is melon-like, oval to nearly round, somewhat pyriform, or elongated club-shaped, and it has a unique and exotic sweet taste.
Papaya is the perishable food. Drying is the most common processing technology to preserve papaya by removing most of its water. The lower water content slows the rate of respiration, enzymatic action, and overall deterioration rate makes products less susceptible to decay and much easier and less expensive to store and transport. Papaya is very suitable for drying, and dried papaya retains delicious taste and its nutritive value.
Multi-layer dryer machine is a kind of continuous production drying equipment. Its main working principle is to spread the material evenly in the network. The material is moved in the dryer by the operation of the machine, and the hot air draws out the water vapor of the material. so as to achieve the purpose of drying.
In this mesh belt type of drying, the heat needed for drying is provided by convection with hot air in direct contact with the papayas. The continuous belt dryer is formed by an endless belt on which the papayas to be dried is placed and carried through a counter-or co-current flow of hot air.
Materials are uniformly put on the mesh-belt by the feeder. The mesh-belt uses generally 12-60 mesh stainless steel wire net and it is drawn and moved inside the drier by a transmission device. The drier is composed of several units. For each unit, the hot air is circulated separately. Some exhausted gas is discharged with a special moisture elimination blower. The waste gas is controlled through an adjustment valve. The hot air passes through the mesh-belt covered with the material from the top to the bottom or from the bottom to the top and this will complete the heat and mass transfer process. This process will bring the material water away. The mesh-belt moves slowly, running speed can be freely adjusted according to the material temperature. The final products after drying will fall into the material collector continuously. The top and low circulation units can be freely equipped according to the users’ demand. The unit number can be selected according to the demand.
DW series multi-layer belt dryer is a continuous drying equipment for batch production. It is suitable for large-scale production of difficult-to-dry materials with low drying rate. The equipment has compact structure, small floor area, simple operation, convenient maintenance and stable operation.
| Model | DW-5-1.2-8 | DW-5-1.2-10 | DW-5-1.6-8 | DW-5-1.6-10 | DW-5-2-8 | DW-5-2-10 | |
| Width of belt(m) | 1.2 | 1.6 | 2 | ||||
| Length of dry section(m) | 8 | 10 | 8 | 10 | 8 | 10 | |
| Thickness of raw material spreading(mm) | 10-50 | ||||||
| Operation temperature(℃) | 50-120 | ||||||
| Steam pressure(MPa) | 0.2-0.5 | ||||||
| Steam consumption(kg/h) | ≤2Kg steam/evaporating 1kg water (for vegetables and herbal pieces) | ||||||
| Drying capacity(kg water/h) | 100-250 | 120-350 | 110-320 | 140-320 | 150-450 | 200-550 | |
| Total power(kw) | 21.2 | 22.7 | |||||
| Overall dimensions | L(m) | 11 | 12.5 | 11 | 12.5 | 11 | 12.5 |
| W(m) | 1.6 | 1.6 | 2.0 | 2.0 | 2.4 | 2.4 | |
| H(m) | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | |
| Weight(kg) | 3800 | 4780 | 4400 | 5550 | 5350 | 6800 | |
| Note: Multi-layer mesh belt dryers are available in 3, 5, 7 and 9 layers. | |||||||
Location: IndiaCapacity: 4 t/h
Location: IndiaCapacity: 4 t/h
Location: XinjiangCapacity: 5 t/h
