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河北省迁安县推广的太阳能采暖“三结合”小型高效沼气池,是指把沼气池建在猪圈内,冬季利用太阳能采暖,使之成为畜禽养殖、厕所、沼气三结合的农村庭院综合措施。一、设施效益简述这套设施适于五口之家养二三头猪或一二头大牲畜的农户,其人畜粪便可满足6米~3沼气池发酵原料的需要。兼之采用建池新工艺,基本解决了自动进料和出料难的问题。冬季利用太阳能采暖,使沼气池可常年产气,产气量供五口之家日做两餐、点一盏沼气灯。猪舍冬暖夏凉,冬季最低温为3～5℃,能满足猪的生长和鸡产蛋对环境温度的要求。据跟踪调查,每头育肥猪可节省精饲料50公斤,鸡的产蛋率冬季保持在60％以上。庭院果树蔬菜施用沼渣沼液,可减少化肥和农药的投入,并生产出优质无公害产品。
Qian’an County, Hebei Province to promote solar heating “triple” small high-efficiency biogas digesters, biogas digesters built in the pigsty, winter use of solar heating, making it a combination of livestock and poultry farming, toilets, biogas comprehensive rural yard measures . I. Brief Description of Facilities Benefit This facility is suitable for farmers with five or three domesticated pigs or one or two large livestock whose manure and livestock excrement can meet the needs of fermenting raw materials of 6m ~ 3 biogas digesters. Both the use of new pool construction technology, the basic solution to the problem of automatic feeding and discharging difficult. Winter use of solar heating, so that biogas digesters can be perennial gas, gas production for five families do two meals a day, point a biogas lamp. The pigs are warm in winter and cool in summer, with the minimum temperature in winter being 3 ~ 5 ℃, which can meet the requirements of pig growth and egg laying on ambient temperature. According to the follow-up survey, each fattening pig can save 50 kg of concentrate, and the laying rate of chickens remains above 60% in winter. The use of biogas slurry in fruit trees and vegetables in the courtyard can reduce the input of fertilizers and pesticides and produce high-quality pollution-free products.