一、椭圆钢丝网水泥倒置活动盖目前,各地农村家用沼气池都是采用国标图集上的平板式或瓶塞式活动盖。这种活动盖完全靠重力或木楔子的压力压住,气压越大其密封性越差,漏气现象十分严重,而且封盖难开盖也难。往往是用户不敢动,技工不愿干,严重影响着沼气的效益。为了解决上述问题,我们在研制工厂化生产的倒置活动盖前,先采用了钢丝网水泥 First, the oval wire mesh cement inverted activity cover At present, all over the country home biogas digesters are used on the national standard atlas flat or bottle cap activities cover. This activity cover completely by gravity or wedge pressure to suppress the greater the pressure the worse the sealing, leakage is very serious, and difficult to open the lid is difficult to cover. Often users are afraid to move, mechanics do not want to dry, a serious impact on the benefits of biogas. In order to solve the above problems, we in the development of factory production of inverted activities before the cover, the first use of wire mesh cement