工作原理

热空气由入口管以适宜的喷动速度从干燥机底部进入搅拌粉碎干燥室，对物料产生强烈的剪切、吹浮、旋转作用，于是物料受到离心、剪切、碰撞、摩擦而被微粒化，强化了传质传热。在干燥机底部，较大较湿大颗粒团在搅拌器的作用下被机械破碎，湿含量较低、颗粒度较小的颗粒被旋转气流夹带上升，在上升过程中进一步干燥。由于气固两相作旋转流动，固相惯性大于气相，固气两相间的相对速度较大，强化两相间的传质传热，所以该机生产强度高。

Working principle

Hot air is sprayed from the inlet pipe at a proper speed to enter a mixing, crushing and drying chamber through the bottom of the dryer. The chamber causes the materials to carry out strong shearing, floating and rotating actions. Thus, the materials are granulated through centrifuging, shearing, impacting and rubbing. Mass transfer and heat transfer are also strengthened. At the bottom of the dryer, large and damp granules are crushed under the action of the stirrer, while small granules that contain less moisture will be lifted by the rotating air flow. During this lifting period, they are dried further. As solid and gas make rotary flow, solid inertia is higher than that of gas, and the difference between the solid and gas speeds is high, mass transfer and heat transfer between the two phases are strengthened. Therefore, the machine has high drying capacity.

特点

●多种加料装置供选择，加料连续稳定，过程中间不会产生架桥现象。

●干燥机底部设置特殊的冷却装置，避免了物料在底部高温区产生变质现象。

●特殊的气压密封装置和轴承冷却装置，有效延长传动部分的使用寿命。

●特殊的分风装置，降低了设备阻力，并有效提供了干燥器的处理风量。

●干燥室装有分级环及旋流片，物料细度和终水份可调。如碳酸钙终水份可调节器至≤0.1%。

●相对其它干燥方法而言，可有效增加物料比重。

●干燥室内周向气速高，物料停留时间短，有效防止物料粘壁及热敏性物料变质现象，达到高效、快速、小设备、大生产。

Features

●Many feeding devices are available for your selection, with continuous and stable charging and without any bridging in the process.

●There is a special cooling device at the bottom of the dryer to prevent materials from being deteriorated under high temperature.

●The special pressure sealing fitting and bearing cooling part effectively prolong service life of the driving part.

●The special air distributor reduces resistance of the equipment and also effectively provides the air volume for the drier.

●Grading rings and vortex sheets and in the drying chamber make the fineness and final moisture of materials adjustable. For instance, the final moisture of calcium carbonate can be adjusted to be less than or equal to 0.1%.

●Compared with other drying methods, it can raise specific gravity of materials effectively.

●High air speed and short stay of materials in the drying chamber effectively prevent the materials from sticking to the inner wall and the heat-sensitive materials from deteriorating, so as to achieve the goals of high efficiency, rapidness, small equipment and high production capacity.

适用物料

无机类：硼酸、碳酸钙、氢氧化物、硫酸铜、氧化铁、碳酸钡、三氧化锑，各种金属氢氧化物、各种重金属盐、合成冰晶石等。

有机物：阿特拉津(农药杀虫剂)月桂酸隔、苯甲酸、安息香酸、杀菌丹、草酸钠、醋酸纤维素等。

陶瓷类：高岭土、二氧化硅、粘土。

染料类：蒽醌、黑色氧化铁、靛蓝颜料、丁酸、氢氧化钛、硫化锌、各种偶氮染料中间体。

食品类：大豆蛋白、胶凝淀粉、酒糟、小麦糖、小麦淀粉。

Field of application

Inorganic compounds: boric acid, calcium carbonate, hydroxide, copper sulfate, ferric oxide, barium carbonate, antimony trioxide, all kinds of metallic hydroxides, all kinds of heavy metallic salts, synthetic cryolite.

Organic compounds: atrazine (insecticide of agrochemicals), cadmium laurate, benzoic acid, germicide, sodium oxalate, cellulose acetate.

Ceramics: kaoline, silicone dioxide, clay and so on.

Dye: anthraquinone, black ferric oxide, indigo blue pigment, butyric acid, titanium hydroxide, zinc sulphide, all kinds of intermediates of azo dye.

Food: soya protein, agglomerative starch, lees, triticin, wheat starch.