干法挤压成型造粒机Dry Extrusion Forming Pelletizer

一、工作原理及应用范围介绍 Introduction of Working Principle and Scope of Application

粉状物料由振动给料斗经横向螺旋送料器定量、均匀地加入轧片主料斗，使轧片主料斗内保持恒定的料位，然后由轧片主料斗内的纵向锥螺旋对粉料进行预压缩并输送至两只压辊的弧形槽口。其表面分布形状相同的半扁圆形弧槽或菱形槽，通过一对齿轮啮合传动，使两只压辊等速反向旋转，将锥螺旋输送至槽口的物料咬入槽内并形成瞬间强制压缩，物料经压缩成形后承受的压力逐渐减小，在其弹力及重力的作用下，从槽内脱落，进入破碎整粒系统，然后根据用户的要求过筛、分级，得到符合要求的均匀颗粒状产品。筛下粉重新进入回振动料斗循环利用。

该设备主要适用于胶囊填充颗粒、颜料、洗涤剂、催化剂、碳酸锶、化肥、白炭黑、无机盐类、氯代异氰尿酸类、漂粉精、农药、氧化物等，以及工业回收粉尘物料：如铸铁厂粉尘、铅、锌、铝粉尘、转炉粉尘、滤尘、磨削等粉尘。 

The powder materials will be added in the main flaking unit by vibratory feed unit after being quantified by horizontal spiral feeder to maintain the constant material level in the main flaking unit, then pre-compressed by the vertical spiral cone in the main flaking unit, and conveyed to thearc groove of two compression rollers. The surface is provided with the half-oblatearc groove or diamond groove with same shape; two compression rollers rotate at reverse directions at constant speed under the engaging transmission action of one pair of gears to add the materials conveyed by the spiral cone in the groove and form the momentforce compression; the pressure of materials formed through compression is gradually decreased, and the formed materials fall off from the groove and enter in the crushing and granulating system under the elastic force and gravity actions, and then screened and graded as required by customer, finally obtaining the conformed even granule products. The screened powder material will return to the vibrating feeder for cycle utilization.

The equipment is mainly applicable to capsule filling particle, pigment, detergent, catalyst, strontium carbonate, fertilizer, white carbon black, inorganic salts, chlorinated isocyanuric acids, calcium hypochlorite, pesticide, oxides and recycled industrial dust materials, such as dust of iron foundry, lead, zinc, aluminum dust, converter dust, filtering dust and grinding dust.

二、特点 Characteristics

1.粉体原材料经本设备无需任何添加剂可直接加工成0.5-5mm的均匀颗粒，使物料的堆积密度大大提高。

2.工艺流程简短，能耗低，辅助设备及人员配置少。

3.干粉直接造粒，无需后续干燥过程。

4.颗粒强度高，堆积比重的提高较其他造粒方式都更为显著。

5.操作弹性大，适应范围广，颗粒强度的大小可通过液压力调节。

6.系统密闭循环操作，实现连续生产。

1. The raw powder materials can be processed to even granules of 0.5-5mm without any additive, thus to improve the bulk density of materials.

2. The process flow is simple and short, and low in energy consumption with smallauxiliary equipment and personnel allocation demands.

3. The dry powder materials are pelletized directly without subsequent drying process.

4. The particle strength is high, and the bulk specific weight is significantly improved than other pelleting method.

5. It has large operating flexibility and wide applicable scope, and the particle strength may be adjusted through hydraulic pressure.

6. The sealed loop operation of system can realize the continuous production.

三、技术参数（下表中数值仅供选型时参考）

Technical parameters (the values in the table below are for reference in type selection only)

四、结构简图Dimension sketch

干法辊压造粒机