摘要
为解决菌糠脱水的难题,文章采用热压脱水固液分离技术对菌糠进行脱水实验研究,分析菌糠含水率与低位热值、热压温度、压力和保压时间的关系,并进行能耗核算。研究结果表明:最佳的热压脱水工艺条件为热压温度为120℃,压力为8 MPa,保压时间为15 min;在最佳工艺条件下,出料的含水率为39.22%,低位热值为9185.97 kJ/kg,符合生物质电厂锅炉对入炉燃料的要求;菌糠的低位热值与含水率基本呈负相关,相关系数大于0.98;菌糠热压脱水的能耗成本约为19.8元/t。
The solid-liquid separation of thermo-compression dewatering was taken in this paper to solve the dehydration problem of black agaric cultivation waste. The relationship between moisture content and low calorific value thermo-pressure temperature, pressure and dwell time were analyzed by the experiment. The energy consumption were calculated then. The results indicated that the best conditions for thermo-compression dewatering were the thermo-pressure temperature of 120 ℃, the pressure of 8 MPa and the dwell time of 15 min. Under the best process conditions,the moisture content of the discharged material was 39.22% and the lower calorific was9 185.97 kJ/kg, which met the requirements of the biomass power plant boiler. The realationship between the lower calorific value of the agaric cultivation waste and the water content was negative correlation, and the correlation coefficient was greater than 0.98. The energy cost of thermo-compression dewatering of black agaric cultivation waste is about 19.8 $/t.
作者
张晓园
周明远
李秀丽
Zhang Xiaoyuan;Zhou Mingyuan;Li Xiuli(School of Environmental and Materials Engineering,Shanghai Polytechnic University,Shanghai 201209,China;Research Center of Resource Recycling Science and Engineering,Shanghai Polytechnic University,Shanghai 201209,China)
出处
《可再生能源》
CAS
北大核心
2019年第3期322-327,共6页
Renewable Energy Resources
基金
上海第二工业大学研究生基金项目(A01GY17F022)
上海市高原学科-环境科学与工程(资源循环科学与工程)资助项目
关键词
黑木耳菌糠
热压脱水
温度
压力
保压时间
black agaric cultivation waste
thermo-pressure dewatering
temperature
pressure
dwell time
