用气流粉碎机对原料高氯酸铵（ AP ）进行粉碎，行星球磨机对粉碎后的AP 进行球磨，使其球形化。用扫描电镜、微米粒度测试仪、傅里叶红外光谱仪、分别对比了原料AP、粉碎后AP和超细球形AP的形貌、粒度分布和红外光谱。用标准容器法和差示扫描量热法（ DSC）测试了同粒度超细球形AP和非球形AP的松装堆积密度和热性能。测试了同粒度超细球形AP和非球形AP的撞击感度和摩擦感度、吸湿性和结块性。结果表明，用球磨法制备的超细球形AP球形率高，球形度好，表面光滑，缺陷少，热分解温度向低温区移动。球形化后的AP撞击感度和摩擦感度降低，吸湿性和结块性明显改善。

Ammonium Perchlorate(AP) was smashed by jet mill,and then superfine spherical AP particles was prepared by planetary ball mill. Their morphologies,particle and IR spectra were characterized with scan electron microscope( SEM) ,Micron la-ser particle size analyzer and Fourier transform infrared spectrometer. Bulk density and thermal mechanical properties of superfine spherical AP and non spherical AP with the same size were characterized by standard container and differential scanning calorimeter (DSC).The impact sensitivity and friction sensitivity,hygroscopicity and caking of superfine spherical AP and non spherical AP with the same size were studied. The results show that superfine spherical AP prepared by the milling method has a high rate of sphe-roidization,good sphericity,smooth surface,fewer defects and thermal decomposition peak moves to low temperature. In addition, the impact sensitivity and friction sensitivity of superfine spherical AP are lower than the non-spherical AP,an

采用肉鸡常用的玉米和小麦型两种日粮,三个制粒温度梯度（80、85、90℃）进行了颗粒饲料质量比较研究。结果表明：制粒温度提高,可以提高颗粒饲料的PDI、MPDI、硬度和淀粉糊化度（P〈0.05）,随着制粒温度的升高（80~90℃）,无论是玉米型和小麦型日粮,均可以改善颗粒饲料的品质;从颗粒饲料质量比较,小麦型日粮优于玉米型日粮（P〈0.05）。采用4种不同的粉碎机筛片（1.0、1.5、2.0、2.5 mm）,粉碎大宗原料（玉米、小麦、豆粕）,获得4种几何平均粒径（378、430、516μm和590μm）的粉状饲料,研究粉碎粒度对颗粒饲料品质影响。结果表明：本研究条件下的粉碎粒度没有影响颗粒饲料的品质（P〉0.05）。研究结论：制粒温度的升高可以改善颗粒饲料的品质,尤其是小麦型日粮。粉碎粒度没有影响颗粒饲料的品质。

Two type of diets (maize and wheat based) in broilers and pelleting temperature (80, 85, 90℃) were selected to evaluate the effect on pellet quality. The result indicate:Temperature from 80 to 90 ℃ can improve PDI, hardness and gelatinised starch in both maize and wheat based diet (P 0.05). In summary, increasing the pelleting temperature can im-prove the pellets quality, especially in wheat-based diet. The particle size had no effect on the pellets quality.

采用CJXXM型行星磨对D97≤45μm的煅烧黑滑石进行了超细粉碎实验，研究了粒度区间对超细粉碎动力学模型形式的影响以及磨机转速、介质粒度和助磨剂对动力学模型中破碎函数的影响。结果表明，对于D97≤45μm的原料，其适用于一阶动力学方程形式的粒度比为15.67；煅烧黑滑石破碎函数最大时所对应的转速为1200 r/min；介质粒度与破碎函数呈幂函数关系，其关系式为k=0.26843 d-0.14478；助磨剂的使用有益于提高破碎速率函数，液态助磨剂三乙醇胺和乙醇的效果优于固态助磨剂六偏磷酸钠。

This paper studies the impact of size interval, mill rotation, media size and grinding aids on the form of kinetic and the breakage function by ultraifne grinding calcined black talc ofD97≤45μm in a CJXXM planetary mill. The results show that for the minerals ofD97≤45μm, the suitable particle size ratio which can be applied in the form of the ifrst order kinetics is 15.67. The rotational speed corresponding to maximum breakage function of calcined black talc is 1200r/min. The breakage rate is the power function of media size, the form of the power function isk=0.26843d-0.14478. Grinding aids can improve the breakage rate function, and the liquid grinding aids like triethanolamine and ethanol have a better effect than solid state grinding aid such as hexametaphosphate.

为探讨济钢目前烧结原料结构条件下固体燃料粒度对烧结矿产质量的影响,通过改变固体燃料粒度中1 mm的比例进行烧结杯试验。结果表明,随着固体燃料粒度中1 mm比例的降低,垂直烧结速度加快,烧结矿成品率、利用系数、转鼓强度、平均粒径等指标明显改善,对降低固体燃料、烧结内返粉和高炉槽下返粉将起到重要作用。生产中应稳定四辊操作,适当放宽输出粒度范围,杜绝固体燃料的过粉碎现象。

A study is carried out on the influence of solid fuel particle size in sintering on sinter yield and quality by changing the proportion of<1 mm particle size solid fuel in sinter pot test. The results showed that when the<1 mm particle reduced, the vertical sintering rate increased, indexes such as sinter yield, utilization factor, tumbler strength and average particle size are remarkably improved, therefore greatly reducing solid fuel cost, return fines in sintering and under bin of BF. It also points out that the four roller operation should run smoothly, particle range should be properly widened and over powder phenomenon of solid fuel particle should be avoided.

试将粉碎后的炼焦煤料作为一个颗粒群，运用颗粒学的理论来分析炼焦入炉煤的粒度分布特征。根据颗粒学家T.Allen对分布宽度系数nk 的定义，设计试验方案采集基础数据；再应用计算机知识，处理基础数据，得到有关nk 的具体参数，并依据定义公式，计算得到几组炼焦入炉煤的粒度分布宽度系数nk。通过70kg小焦炉试验，研究了入炉煤粒度分布宽度系数对焦炭强度的影响，得到焦炭抗碎强度M40与入炉煤粒度分布宽度系数nk 的一元二次方程。这为研究入炉煤的粒度分布特征探索出一条行之有效的方法。

Coking coal after crushed was regarded as particles group, and characteristics of coal parti-cle size distribution were analyzed by the particle theory.According to the definition of distribution width coefficient nk by T.Allen, test scheme was designed and basic data were collected.Then basic data were processed through computer, the concrete parameters related to nk were obtained.On the ba-sis of definition formula, several groups distribution width coefficients nk were calculated.Influence of particle size distribution width coefficient of coal charged on coke strength was studied through the 70kg coke oven test.The effect of coal particle size distribution width coefficient on coke strength, an equa-tion of coke crushing strength M40 and particle size distribution width coefficient nk of coal charged were got, which provide an effective method for the study of characteristics of coal particle size distribution.