鼓式混凝土搅拌机分类

这也称为自由落体搅拌机或达到搅拌机。在这种类型的混合器中，通过在旋转鼓内的固定叶片的帮助下通过升温成分来混合混凝土，然后通过克服混合物和叶片之间的摩擦来滴下材料。通过改变其旋转方向，打开它或将其倾斜，可以填充和清空混合器的滚筒。轮换速度必须仔细遵循机器特定的指示，不应该太快，使混合物的自由落下不会被离心力中断。

硒鼓搅拌机适合不太僵硬的混凝土;通常在施工地点普遍使用坍落度高达50毫米。卡车搅拌机也使用自由坠落混合。由于自由坠落搅拌机中的成分从高度下降，因此聚集体有一些磨损。

这种类型的混合器用于生产大量的混凝土。应注意这些混合器，用于具有高生产速度，低维护和坍落度混凝土的理想选择。

该硒鼓混合器有以下三种形式提供： -

1. Tilting Mixers
2. 可逆搅拌机
3. 非倾斜混合器

1.Tilting Mixers

Tilting mixers are usually trailer-mounted or otherwise portable, small to mid-size mixers, used either as main concrete mixing equipment on small sites or as ancillary equipment on sites served by concrete plant. The drum has two axes: one around which the drum rotates and another that serves to change from loading and mixing position (drum opening up) to discharging position (drum opening down). This position change is done manually by a dump wheel (or handle, in the smaller mixers), while drum rotation is electric, gasoline, or diesel powered. Drums are traditionally made of steel, but polyethylene drums for easier cleaning are now offered. Most mixers are of the side-dump type, but end-dump mixers are also manufactured. Material is generally loaded manually, directly into the drum. There are larger-size self-loading units equipped with a tilting hopper. After being filled manually at ground level, the hopper is tilted up mechanically and dumps the material into the drum. A built-in mechanical drag shovel to facilitate aggregate loading into the hopper is optional in some models.

滚筒是圆锥形的或碗状物，具有内部叶片，放电快速且不起，使得这些混合器适用于低可加工性和含有较大尺寸骨料的混合物。鼓轴通常在混合期间从水平保持15度的角度。

倾斜搅拌机提供一致的混合，操作和维护成本较低。倾斜滚筒是用于小批次的最常见的硒鼓混合器。

Tilting mixers can handle larger size aggregates more easily and will discharge mixed concrete rapidly than a non tilting mixer.

2.可逆搅拌机

The reversible drum mixer is similar to the non tilting mixer except that the same opening is used to add the constituents and to discharge the aggregate. The drum on a reversible mixer has one horizontal axis around which it rotates. In mixing position, the drum rotates in one direction; while for discharging, the rotation is reversed.

Commonly self-loading, reversible mixers are mid-size to large-size units mounted on a two-or four-wheeled trailer for transportation between sites. The mixer is equipped with a tilting hopper similar to that occasionally found on a tilting mixer, or with a hoist-like hopper that moves up and down on a short inclined set of rails and that dumps the ingredients through a bottom opening into the drum. A built-in mechanical skip to facilitate aggregate loading into the hopper is optional on many models.

Most models of this mixer type are equipped with a water tank and meter, and optionally (the larger models) with a built-in aggregates batcher.

3.非倾斜混合器

A non tilting drum mixer is one in which the axis of the mixer is always horizontal, and discharge takes place by inserting a chute into the drum or by reversing the direction of rotation of drum.

由于放电速度慢，可能发生一些偏析。

There are two openings, one at each end of the drum: one for feeding the ingredients, the other for discharging the mixture.