What method is used for drying and storage of forage grass
What methods are used for drying and storing pastures? Currently commonly used methods include natural drying and artificial drying. Natural drying does not require special equipment and is low in cost. However, it is limited by natural conditions, and requires large labor intensity, a large area, low efficiency, and poor quality hay. Relatively natural drying, artificial drying uses large-scale forage grass dryers for large-scale processing, not subject to natural conditions, low labor costs, good drying effects, and is popular with new and old users.
The forage dryer is the main equipment for drying grass materials such as grass, alfalfa, cattail grass, Timothy grass, and straw. The rapid drying through high-temperature hot air can reduce the loss of nutrients in the natural drying process of the forage and keep the forage. High nutritional value. The moisture content of the dried forage is about 12%, which meets the water conservation standards for forage preservation or silage processing.
Forage drying process principle
The physical process is: about 45-75% of the moisture is crushed and the forage is sent to the drum by the conveyor to achieve downstream drying. The forage is continuously picked up under the copyboard on the inner layer, and scattered in a spiral advance, passing through the inner, middle and outer Three layers, realize the heat exchange between forage grass and hot air. The forage grass that achieves the drying effect quickly travels out of the drum under the action of wind. The wet forage grass that has not reached the drying effect cannot move quickly because of its own weight. The drying effect is achieved, the moisture of the forage is reduced to 14-18% (customer requirements), the drying process is completed, and it is discharged by the screw conveyor. A special removal device is installed inside the drum to prevent uneven drying of the forage grass.
The gas flow is: the forage dryer is equipped with an indirect clean hot blast stove, and the clean air is pressurized by a blower to enter the heat exchanger and heated to a temperature of 150-350 ℃. The moisture and temperature are lowered to 35-55 ° C and discharged into the dryer, and the dust and moisture are purified and discharged by the dust collector.
Zhengzhou Dingli specializes in the production of forage dryers. It can optimize the drying process technology and equipment selection and configuration services according to the characteristics, yield, quality requirements, application requirements, cost control, degree of automation, field conditions and investment quota etc.
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