含水率对草坪草常温开模成型的影响

为研究含水率对草坪草常温成型的影响规律，对草坪草修剪剩余物进行了不同含水率不同锥度模具的成型试验。结果在同一锥度模具下，随着含水率的增加，成型块密度都是由小变大再变小；含水率不变的情况下，随模具锥度增大长度减小成型块密度降低；在原料含水率11%、模具锥度25°时，成型块密度达到最大值1.10 g/cm3；原料含水率在20%及以上时，挤出的压块密度都在0.9 g/cm3以下，成型效果差或不成型。研究表明：随着生物质原料含水率增加，常温成型块密度和压缩力的变化趋势一致，都是由小变大再变小。

Effects of moisture content on turfgrass forming at room-temperature

In order to study the influence of moisture content on biomass room-temperature forming, forming tests on turfgrass were done in different moisture content and taper with forming bench. The results indicated that density of block varies from small to big firstly, and then to small, accompanying with the increase of moisture content in the same taper; Under a certain moisture content, the density decreases with taper increasing; when moisture content was at 11% and mold taper was at 25°, the density of block reached max-1.10 g/cm3; When raw material moisture content was at 20% or above, the density of lawn grass was smaller than 0.9 g/cm3. The results showed that the density and pressure of biomass had the same trend which was from small to peak and then to bottom with the increase of water content.