The utility model relates to an electric dehydration preparation cattle bed regeneration padding system for dry cleaning cattle manure. The floor of the cattle shed is provided with a manure scraper, one side of the cattle shed at the end of the manure scraper is provided with a manure collection tank, the material outlet of the manure collection tank is connected with the feed inlet of the delivery pump, and the discharge outlet of the delivery pump is connected with the mud hopper of the electric dehydration device, so as to complete the feeding of the electric dehydration device, and the dry manure outlet of the electric dehydration device is transmitted through the transportation The conveyor belt corresponds to the feeding port of the twin-screw screw conveyor, and the discharging port of the twin-screw conveyor corresponds to the feeding port of the cushion storage box. In this application, dry and clean cow dung with moisture content less than 85% is directly used as dehydration raw material. Compared with traditional screw extrusion solid-liquid separator, no liquid phase is needed to meet the liquidity requirements of pumping and dehydration. The solid-liquid separation efficiency is more than 90%, far higher than 50% of screw extrusion solid-liquid separator. The amount of wastewater generated after separation is small, and the COD of wastewater after separation is low, so the treatment The difficulty is low.
【技术实现步骤摘要】
干清牛粪的电脱水制备牛床再生垫料系统
本技术涉及一种规模化养牛场牛粪的电脱水及脱水牛粪制备牛床再生垫料的方法。特别适用于干清牛粪的直接脱水干化,电阻热过程升温灭菌,制取牛床垫料,属于畜牧业粪尿的清除,地板覆盖物领域。
技术介绍
规模化奶牛场的粪污排放量大、排放集中,已成为制约我国奶牛养殖业迅速发展的瓶颈。牛粪经固液分离后堆肥化处理,利用微生物好氧消化产热灭菌以制取回床再生垫料的处理处置方式,不仅使奶牛场粪污得到资源化利用,同时也解决了奶牛场垫料的来源问题,已成为其主要出路。而牛粪的微生物好氧消化处理都需要前置的固液分离工序,将牛粪含水率降低到65%以下,以保证好氧消化的通风和空隙率要求。目前广泛应用的螺旋挤压式固液分离技术,在具有结构简单、操作方便的同时,也有诸如原料水分含量要求高(大于90%,以满足设备在泵送和挤压过程中对流动性的要求),分离效率低(经机械固液分离后,奶牛粪便中大于50%的固体物、75%以上的养分进入了液体部分),分离效果差(经固液分离后,固形物中水分含量普遍高于65%),易堵塞等问题;同时粪污制备牛床再生垫料应用都存在的敏感问题---重金属在垫料富集无法得到妥善解决,是实现牛粪垫料回用的主要限制因素和安全隐患。电脱水方法作为一种高效固液分离方法,可实现粪污的原料含水率在75%-85%的情况下直接固液分离,无需进行混合其他水分的均质和提高流动性处理,将极大的降低分离后液相总量,降低后续废水处理容量,同时可实现由50%到70%的任意固液分离后固形物含水率要求,根据牛床再生垫料水分要求进行含水率 ...
【技术保护点】
1.一种干清牛粪的电脱水制备牛床再生垫料系统,其特征在于:包括牛棚、刮粪板、集粪池、输送泵、电脱水装置、双螺杆输送机,牛棚地板上设置刮粪板,刮粪板端部的牛棚一侧设置集粪池,集粪池的物料出口连接输送泵的进料口,输送泵的出料口连接电脱水装置的布泥斗,完成对电脱水装置进料,电脱水装置的干粪出口通过输送带对应双螺杆螺旋输送机进料口,双螺杆螺旋输送机出料口对应垫料储存箱的进口。/n
【技术特征摘要】
1.一种干清牛粪的电脱水制备牛床再生垫料系统,其特征在于:包括牛棚、刮粪板、集粪池、输送泵、电脱水装置、双螺杆输送机,牛棚地板上设置刮粪板,刮粪板端部的牛棚一侧设置集粪池,集粪池的物料出口连接输送泵的进料口,输送泵的出料口连接电脱水装置的布泥斗,完成对电脱水装置进料,电脱水装置的干粪出口通过输送带对应双螺杆螺旋输送机进料口,双螺杆螺旋输送机出料口对应垫料储存箱的进口。
2.根据权利要求1所述的干清...
【专利技术属性】
技术研发人员:张蕾,杨增军,王文杰,夏树立,李倩,
申请(专利权)人:天津市畜牧兽医研究所,
类型:新型
国别省市:天津;12
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