The epidemic has accelerated the development of the Chinese medicine industry in the past two or three years, the scale and number of Chinese medicine manufacturers are increasing, the use of small Chinese medicine shredders in the laboratory is also rapidly increasing, in addition to the laboratory outside the pharmacy pharmacy, traditional Chinese medicine clinic, hospital, pharmaceutical enterprises, scientific research units, colleges and universities and other occasions are also widely used. With the continuous advancement of the modernization of Chinese medicine, intelligence and automation will make the Chinese medicine machinery industry to a higher and faster development, the efficiency of laboratory Chinese medicine shredder, crushing effect will be further upgraded, so as to meet the needs of more customers. At present, the frequency of use of laboratory Chinese medicine crusher is very high, in this case, many problems will follow, affecting the efficiency and quality of Chinese medicine production, and the machine itself will have a relatively large impact, in terms of the problems encountered can be divided into three simple categories, today we will explain the causes of these problems and solutions.
1. Materials with unstable fineness are reunited
Agglomeration phenomenon is a problem to be solved in the process of Chinese medicine crushing. Dispersants (surfactants) play a very important role in the grinding process. If the ground material can be sufficiently dispersed, there will be no agglomeration, so the so-called reverse grinding phenomenon will not occur. Therefore, the appropriate choice of dispersant is an effective way to solve the problem of reverse grinding. The industry reminds that for most materials, the Chinese medicine crusher is not the longer the crushing time, the better the crushing effect. Otherwise, sometimes some materials reach a certain fineness, but it is not easy to crush; Sometimes the particle size of the material actually increases.
2. Reduced output and reduced efficiency
The output of the Chinese medicine crusher decreased after working for a period of time. What is the reason for this? The industry said that there are many reasons for the decrease in the output of the mill, such as the material moisture is too large, the mill is not smooth, the screen aperture is not suitable, the fan configuration and other factors can affect the output of the mill. For example, too much moisture in the material will affect the efficiency of the mill. "The material with too much water is not easy to be crushed, and it is easy to block the sieve hole of the screen, seriously affecting the output of the crusher." According to the industry, the solution to this situation is to dry or sun dry the material before crushing it.
Clogging of the discharge port will affect the discharge speed of the mill, resulting in a decrease in output. The solution to this situation is to clean the discharge port, including the residual material in the crushing room, to ensure the patency of the entire crushing link. The aperture size of the screen is also an important factor in controlling the particle size of the crushing. The industry said that when the particle size required for crushing is different, the screen with different aperture should be replaced, otherwise it will reduce the efficiency of crushing, or produce unqualified particles. On the other hand, the opening rate of the screen affects the filtering speed of the screen, and when the opening rate is too small, the efficiency of the crusher will naturally decrease. The solution to the problem of the aperture size of the screen resulting in reduced production is to replace the screen with a suitable aperture and opening rate.
Wind pressure configuration problems can also lead to reduced production. It is understood that the rotor in the crusher will form a low pressure area in the crushing chamber during operation, the material is affected by atmospheric pressure, it is not easy to fly out of the crushing chamber, the purpose of the configuration of pressure difference is to artificially increase a low pressure area outside the crushing chamber, the pressure difference inside and outside the crushing chamber disappears, and the material discharge speed is naturally raised. The solution is to configure a reasonable fan for the crusher.
3. Transmission parts or bearings heat seriously
There are many reasons for bearing overheating, for example, when the two bearing seats are uneven, or the motor rotor is different from the grinder rotor, the bearing will be affected by additional load, resulting in bearing overheating. In this case, it is necessary to immediately stop the fault to avoid early damage to the bearing. "Too much lubricating oil in the bearing, too little or aging is also the main cause of overheating and damage to the bearing, should be according to the requirements of the book on time and quantitative filling of lubricating oil, general lubrication accounts for 70%-80% of the bearing space, too much or too little is not conducive to bearing lubrication and heat transfer." The industry says so. When the bearing cover and shaft fit too tight, the bearing and shaft fit too tight or too loose will cause the bearing to overheat. Once this problem occurs, in the operation of the equipment, there will be a friction sound and obvious swing. At this time, the operation should stop to remove the bearing, trim the friction part, and then reassemble as required.
Laboratory Chinese medicine crusher as a Chinese medicine before the use of a higher frequency of models, in the use of equipment to strictly comply with the maintenance procedures, daily cleaning and cleaning, fastening parts inspection, lubrication transmission parts inspection are necessary content, the above we just talked about a few common problems, more questions welcome to consult the engineers of this Chen technology, I also hope that we can exchange more experience in the use of Chinese medicine, further improve the technical level and maintenance level of the laboratory Chinese medicine crusher industry, so that this equipment can benefit more users.
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