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微粉机的操作给工作带来哪些有效方式?

1、 粉碎过程全密闭不分级方式(药物成分的保管)众所周知中药成分复杂,包括生物碱、甙、挥发油、有机酸、黄酮等,这些有效成分常常存在于药物的不同部位中,如人参皂甙在皮层含量高于芯材,而芯材中淀粉含量高,在粉碎时芯材粉碎易于皮层,若采用选择性粉碎方式(即少磨多筛方式)则会形成易粉碎物质先成微粉,而难粉碎物质则会成渣扔掉。同时药物中的挥发性成分也会在气力分级中随大量气体带走,这就是为什么气流粉碎在粉碎人参、沉香时,粉碎到一定细度皂甙、挥发份含量大幅降低的缘由。转子粉碎机粉碎温度高、微粉碎效率极低、粉尘大,能够不用思索。
1. It is well known that the components of traditional Chinese medicine are complex, including alkaloids, glycosides, volatile oils, organic acids, flavones, etc. These active ingredients often exist in different parts of the medicine, such as ginsenosides in the cortex are higher than those in the core material, while the starch content in the core material is high. When the core material is crushed, it is easy to crush the cortex. Selective comminution (i.e. less grinding and more sieving) will lead to the formation of fragile substances into micro-powder first, while hard-to-comminute substances will become slag and throw away. At the same time, the volatile components in drugs will be removed with a large number of gases in the pneumatic grading, which is why the content of saponins and volatile components in ginseng and aloes will be greatly reduced when they are crushed by airflow. Rotor mill has high crushing temperature, low micro-crushing efficiency and large dust, so it can be used without thinking.
微粉机在设计之初就思索到中药成分的多样化及复杂性,在粉碎工艺上采用多磨不筛的办法,应用第三代振动磨粉碎理论(选择性粉碎大粒子),全密闭操作不分级,避免成份偏析及损失。 关于复方中药亦是如此,只不过增加了不同药材可粉碎度的不同,选择性粉碎形成废品的不同药材的配比差别。由于成份偏析及损失形成的药效降低将会依据药物及有效成份的不同而有所变化。单元、集成化操作,最大限度减少中间环节,能够显著降低药物的污染;全密闭作业能够最大限度减少药物损失、防止污染;不分级作业坚持处方用药的全部组分,没有有效成分的损失。这样既契合制药的开展趋向又契合处方用药的请求。
At the beginning of the design of the micro-grinder, the diversification and complexity of the ingredients of traditional Chinese medicine were considered. The multi-grinding and non-sieving method was adopted in the grinding process, and the third generation vibration grinding theory (selective grinding of large particles) was applied to avoid the segregation and loss of ingredients. The same is true of compound Chinese medicines. It only increases the difference of crushing degree of different medicines and the difference of proportion of different medicines which selectively crush to form waste products. Drug efficacy decreases due to component segregation and loss will vary depending on the drug and its active ingredients. Unit, integrated operation, minimizing the intermediate links, can significantly reduce drug pollution; fully closed operation can minimize drug loss and prevent pollution; non-graded operation adheres to all components of prescription medication, without loss of effective ingredients. This is not only in line with the trend of pharmaceutical development, but also in line with the requirements of prescription drug use.
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2、 有效的紧缩粉碎方式(精细复合化带来的生物应用度进步)气流粉碎及转子粉碎方式均为单向作用施力,关于粉碎作用力的大小除了与施与作用力的大小与速度有关外,很关键的是粉碎受体的质量(重量),若粉碎物料的质量很小则粉碎效果差。且由于其单向冲击作用力方式,关于韧性及弹性资料则会在粉碎中产生让步性,形成无效粉碎。由于中药的动植物药均具备上述特性,形成粉碎效率低。但关于矿物药,普通具备脆性且质量大,采用气流方式粉碎效率也比拟高。微粉机与球磨机均属于紧缩粉碎,但微粉机的冲击加速度为重力加速度的6倍以上,球磨机为1倍。
2. Effective compaction crushing (improvement of biological applicability brought about by fine compounding) airflow crushing and rotor crushing are both unidirectional forces. The crushing force is not only related to the size and speed of the applied force, but also to the quality (weight) of the crushing receptor. If the crushing material is very small, the crushing effect will be poor. Because of its one-way impact force mode, the data on toughness and elasticity will yield in the crushing process, resulting in ineffective crushing. The crushing efficiency of traditional Chinese medicines is low because of the above characteristics of both animal and plant medicines. But as for mineral drugs, they are generally brittle and of high quality, and their grinding efficiency by air flow is comparatively high. Both micro-pulverizer and ball mill belong to compact crushing, but the impact acceleration of micro-pulverizer is more than 6 times of gravity acceleration and 1 times of ball mill.
由于该紧缩粉碎方式的作用力方式为高加速度冲击+剪切,物料在双向复合力的作用下紧缩撕裂破碎,该粉碎作用力的大小不受物料质量的影响,关于质量小的物料一样遭到大作用力。关于同批次灵芝用两种不同作用力方式微粉碎后灵芝多糖溶出测定结果标明:经微粉机粉碎灵芝比气流粉碎的灵芝多糖溶出量多40%。电镜照片察看也有明显区别。这种粉碎作用力方式会形成物料晶格毁坏,用非紧缩粉碎方式(气流粉碎、转子粉碎)无论做多细,不会毁坏晶体外形。
Because the force mode of the compaction crushing mode is high acceleration impact + shear, the material is compacted and teared under the action of two-way composite force, the size of the crushing force is not affected by the quality of the material, and the material with small quality is also subjected to large force. On the same batch of Ganoderma lucidum, the dissolution of Ganoderma lucidum polysaccharides after micro-grinding by two different force modes showed that the dissolution of Ganoderma lucidum polysaccharides after micro-grinding by micro-grinder was 40% higher than that by air-flow grinding. There are also obvious differences in electron microscopic photographs. The grinding force will destroy the material lattice. No matter how fine it is, the crystal shape will not be destroyed by non-compact grinding (air flow grinding, rotor grinding).
以茶碱粉碎为例采用非紧缩粉碎后细度增加,但晶型坚持原状;采用微粉机粉碎则见不到原状晶型,呈不定型微粒子复合体,其比外表积远远大于前者。采用该方式粉碎纤维性物料时,由于遭到激烈的紧缩撕裂作用力,易于毁坏组织构造及纤维,使组织构造内部的水份(包括结晶水)、油份、挥发份、气体被挤出,减少组织内部空隙率,使物料密实度增加。
Taking theophylline comminution as an example, the fineness of theophylline is increased after non-compact comminution, but the crystalline form adheres to the original state; the original crystalline form can not be seen by micro-pulverizer comminution, which is an amorphous particle complex, and its specific surface area is much larger than the former. When using this method to crush fibrous materials, it is easy to destroy the structure and fibers due to the intense contraction and tearing force, so that the moisture (including crystalline water), oil, volatile matter and gas in the structure are extruded, the void rate in the structure is reduced, and the compactness of the material is increased.
由于组织构造内部的物质被挤出并吸附在组织碎片的外表,使粒子的粘性增大,在激烈的紧缩撕裂作用力下,粒子被不时揉捏撕扯,吸附在组织构造外表的物质随之互相迁移,促使油性成份与水性成份在“生物外表活性剂”(普通生物组织内均含具有外表活性的物质,如皂甙、蛋白质等)的作用下构成乳化组合。我们称之为“固体乳化”。在该作用的同时,随着组织构造在粉碎过程中的不时毁坏及细化,在紧缩、揉捏、撕裂的作用下,经过组织内部迁移物质的粘性作用,使被细化的不同组织构造碎片不时构成新的组合,我们称之为“精细复合化”。在此组合的根底上,精细复合化的粘性粒子在紧缩作用力的条件下,会构成聚会组合,我们称之为“微粒子团”
Because the material inside the tissue structure is extruded and adsorbed on the surface of the tissue debris, the viscosity of the particles increases. Under the intense compressive tearing force, the particles are kneaded and teared from time to time, and the substances adsorbed on the surface of the tissue structure migrate with each other, which promotes the oil and water components in the "biological surfactant" (common biological tissues contain substances with surfactant activity). Quality, such as saponins, proteins, etc.) acts as an emulsifying combination. We call it "solid emulsification". At the same time, with the destruction and refinement of the structure in the crushing process from time to time, under the action of compaction, kneading and tearing, and through the viscous action of material migration within the tissue, the refined fragments of different tissue structures form new combinations from time to time, which we call "fine compounding". On the basis of this combination, fine composite viscous particles will form a gathering combination under the condition of compaction force, which we call "microparticle clusters".
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