Drum Dryer And Cooler Series

Self-made combustible gas is used as the heating source, and the drying is divided into two parts: the drum part and the serpentine tube part. Drum part: inner drum, outer insulation two layers. The inner drum is equipped with three internal spiral pieces, which can make the dried materials move evenly, which is called frying heating. The serpentine tube part uses the heat source for the second time, and uses the negative pressure suction of the induced draft fan to pump the dried materials into the screw for separation. achieve drying effect. Existing dryers generally use coal and firewood as heat sources. The labor intensity is high, the cost is high, the thermal efficiency loss is large, and the heat utilization is less than 30%. Generally, the original half bucket with a moisture content of 35% needs to be dried 3 to 4 times, while the gas drum dryer can make the raw material with a moisture content of 35% Once dried successfully. Save electricity by 75%, greatly reducing drying costs. The gas source of the dryer comes from the carbonization kiln, and the methane gas produced by carbonization in the carbonization kiln is used by the dryer.

The dry wet material is sent to the hopper by the belt conveyor or bucket elevator, and then enters the feeding end through the feeding pipe of the feeding machine of the hopper. The inclination of the feeding pipe should be greater than the natural inclination of the material so that the material can flow into the cooler smoothly. The cooler cylinder is a rotating cylinder slightly inclined to the horizontal. The material is fed from the higher end, and the heat carrier flows out from the lower end, and contacts with the material in countercurrent, and some heat carriers and materials flow into the cylinder together. With the rotation of the cylinder, the material moves to the lower end under the action of gravity. When the wet material moves forward in the barrel, it directly or indirectly receives the heat from the heat carrier, so that the hot material can be cooled, and then it is sent out at the discharge end through a belt conveyor or a screw conveyor. The inner wall of barrel is equipped with lifting flight, which can lift the materials and scatter them, increases contact surface of materials and airflow, in order to increase the cooling rate and forward the materials advancement. The cooling body is generally divided into cold air and the like. After the heat carrier passes through the cooler, a cyclone dust collector is generally required to capture the material in the gas. If you need to further reduce the dust load in the end gas, it should also pass through the bag type collector or wet dust collector and then release it.