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鼓筒式砼搅拌机最早出现于十九世纪七十年代,至今已有百年以上历史。我国1952年开始投产使用,它以其配套齐全,机动性能好,产量适中,使用方便和造价低廉而为建筑施工企业普遍采用,是目前量大面广的建筑机械之一。但是随着国民经济建设迅速的发展,高层大型建筑的不断增多,对砼生产的质量和数量都提出了更高的要求,故而1986年8月由国务院六个部、委联合发文宣布,JG型鼓筒式砼搅拌机从1987年12月30日起强制进行淘汰,并推荐JZ型锥形反转出料式和JD、JS型单、双卧轴式砼搅拌机为替代机型。 JG型搅拌机与推荐的替代机型相比,其缺点是:①生产的砼质量差,搅拌时间长达
The drum-type rake mixer first appeared in the 1970s, and it has been more than 100 years old. Our country began to put into production in 1952. It is widely used in construction companies because of its complete facilities, good maneuverability, moderate output, easy use and low cost. It is one of the most widely used construction machines. However, with the rapid development of national economic construction, the increasing number of high-rise and large-scale buildings has imposed higher requirements on the quality and quantity of cesium production. Therefore, in August 1986, the six ministries and commissions of the State Council jointly issued a document proclaiming that type JG. The drum-type rake mixer has been forcibly eliminated from December 30th, 1987. JZ-type conical reversal discharge type and JD and JS single- and double-shaft ram type rake mixers are recommended as alternative models. The disadvantages of the JG mixer compared to the recommended alternative are: 1 The quality of the ytterbium produced is poor and the mixing time is long