美国FEECO回转烘干机(回转窑，旋转窑，旋转干燥器)介绍

译文：回转烘干机是什么？

有时被称为旋转窑，旋转干燥器，是一种类型的工业干燥机，以减小或^小化它正在处理的材料直接接触，通过把它与加热气体的水分含量。烘干机是由一个大型的，旋转的圆筒形管，通常混凝土柱或梁钢的支持。机稍微倾斜，使得排出端是低于材料的进料端，以传达材料在重力作用下通过干燥器。以进行干燥的材料进入干燥器的较高端，和干燥器转动时，该材料被抬起由一系列的内部散热片，干燥机的内壁衬。当材料变得足够高，以关闭翅片回滚，它回退到下降到干燥器的底部，通过热空气流，因为它属于。该空气流可以被朝着从进料端（被称为顺流旋转干燥器），或朝向的进料端从排出端（称为作为逆流旋转干燥器）的排出端。的空气流可以由空气和炉排出的废气（称为作为一个直接加热的烘干机）或简单的热空气（称为作为间接加热干燥器，一般进行造成产品污染的风险较小）的混合物。

旋转干燥器也是能够煅烧的材料，或将两种或多种材料混合，有时刺激两种或更多种材料之间的反应。水泥行业的回转窑（因为它被调用时，它不被用于干燥的材料）是常用的，导致它的两个主要组成部分之间的一个关键反应。

什么样的材料适合用旋转式干燥机？

典型的材料旋转干燥器过程包括：聚集，农业谷物和副产品，动物饲料，动物粪便，污泥，陶瓷，粘土，化肥，石膏，铁精矿，石灰石，金属屑，开采矿石及精矿，市政污泥，城市废物，有机和无机化学品，造纸污泥，塑料粒，钾肥，再生粉尘，橡胶颗粒，销售，砂钢厂废物/污泥，糖尿素颗粒和晶体。

顺流回转式烘干机VS逆流转筒干燥器

在顺流旋转干燥器，加热的干燥空气在相同的方向上流动的产品，并在计数器的当前旋转模型干燥气流行进反对的流动的产品。这些旋转干燥器直接将产品暴露在由热源产生的热空气。当鼓转动时，解除安装在鼓外壳的内部翻滚，滑动的“飞行”，解除和淋浴材料到空气流中。起重航班仔细设计，以适应在干燥的材料，确保产品均匀地暴露。这种搅拌^终导致更高的效率，并减少了处理时间相比，固定单元。服用1小时的处理，在一个固定的炉，在旋转干燥器中采取短短几分钟内的情况并不少见。许多类型的干燥燃料和控制方法的选项，包括独立的的微处理器控制器或PLC控制器，直接与工厂控制系统。

组合回转烘干机/冷却器

这种高度灵活的新产品FEECO结合在一个单一的安装利用注入空气，以产生流化行动的材料的干燥和冷却功能。可以使用附加的内部间接冷却，以帮助减少的粉尘收集和排气系统的负担。这种成熟的设计可以帮助解决遇到的问题在安装干燥/冷却系统在现有的空间或建筑物。冷却罩部分可以改装到FEECO和竞争品牌的旋转干燥器。

原文：What is a Rotary Dryer?

The rotary dryer, sometimes known as a rotary kiln, is a type of industrial dryer employed to reduce or minimize the moisture content of the material it is handling by bringing it into direct contact with heated gas. The dryer is made up of a large, rotating cylindrical tube, usually supported by concrete columns or steel beams. The dryer slopes slightly so that the discharge end is lower than the material feed end in order to convey the material through the dryer under gravity. Material to be dried enters the higher end of the dryer, and as the dryer rotates, the material is lifted up by a series of internal fins lining the inner wall of the dryer. When the material gets high enough to roll back off the fins, it falls back down to the bottom of the dryer, passing through the hot air stream as it falls. This air stream can either be moving toward the discharge end from the feed end (known as a co-current rotary dryer), or toward the feed end from the discharge end (known as a counter-current rotary dryer). The air stream can be made up of a mixture of air and furnace exhaust fumes (known as a direct heated dryer) or simply hot air (known as an indirect-heated dryer, which generally carries a lesser risk of causing product contamination).

The rotary dryer is also capable of calcining the material, or mixing two or more materials, and sometimes stimulating a reaction between two or more materials. The rotary kiln (as it is called when it is not being used to dry a material) is commonly used in the cement industry to cause a key reaction between two of its major components.

What kind of materials do Rotary Dryers process?

Typical material rotary dryers process include: aggregates, agricultural grains and by-products, animal feeds, animal waste, biosolids, ceramics, clay, fertilizers, gypsum, iron ore concentrates, limestone, metal chips and shavings, mining ores and concentrates, municipal sludge, municipal waste, organic and inorganic chemicals, paper sludge, plastic pellets, potash, reclaimed dust, rubber pellets, sales, sand steel mill waste / sludges, sugar urea prills and crystals.

Co-current Rotary Dryers vs Counter Current Rotary Dryers

In co-current rotary dryers, the heated drying air flows in the same direction as the product, and in counter current rotary models the drying airflow travels against the flow of the product. These rotary dryers directly expose the product to hot air produced by the heat source. As the drum rotates, lifting “flights” mounted on the inside of the drum shell tumble, slide, lift and shower the material into the air stream. Lifting flights are carefully designed to accommodate the material being dried and ensure the product is uniformly exposed. This agitation ultimately leads to higher efficiencies and reduces processing times compared to stationary units. It is not uncommon for a process taking 1 hour in a stationary furnace to take just a few minutes in a rotary dryer. A number of options for types of drying fuel and control methods are available including stand-alone microprocessor controllers or PLC controllers that directly interface with plant control systems.

Combination Rotary Dryer / Cooler

This highly versatile new product from FEECO combines drying and cooling functions in a single installation utilizing injected air to produce a fluidizing action on the material. Additional internal indirect cooling can be used to help reduce the burden to the dust collection and exhaust system. This proven design can help solve problems encountered in installing a drying/cooling system in an existing space or building. The cooling hood section can be retrofitted to FEECO and competing brands of rotary dryers.

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k8凯发干燥专业生产干燥设备,2008年评为国内第一批^高新技术企业，已申请三十多项国家^，七项高新技术产品...