Adjustable modular crushing and grinding device

Abstract

The invention provides an adjustable modular crushing and grinding device. The adjustable modular crushing and grinding device comprises a grinding assembly and a filtering assembly. The grinding assembly comprises a driving source, a lifting mechanism, a crushing and grinding hammer, a plurality of cutting blades and a crushing and grinding cylinder. The crushing and grinding hammer comprises anupper end body, a lower end body, a material-pushing body and the cutting blades, a first round circular truncated cone chamber, a second circular truncated cone chamber and a second cylindrical chamber are arranged in the crushing and grinding cylinder, and the first round circular truncated cone chamber, the second circular truncated cone chamber and the second cylindrical chamber are arranged coaxially from top to bottom in sequence; the inner diameter of the first round circular truncated cone chamber and the inner diameter of the second round circular truncated cone chamber decreases in sequence from top to bottom. The filtering assembly comprises a cylinder, a vibrating body, a first power source, an overturning rod, a screen fixing sleeve, a screen and a second power source. Coarsegrinding and fine grinding are achieved, and the fine grinding particle size of a material is adjusted without changing the grinding hammer; and meanwhile, the screen can be automatically overturned to automatically pour out the material which remains on the screen after screening.

Description

Technical field [0001] The invention relates to the field of material crushing and grinding, in particular to an adjustable modular crushing and grinding device. Background technique [0002] In the pretreatment stage of physical and chemical analysis samples such as biopharmaceuticals, bioengineering, soil testing, solid material composition testing, etc., crushing and grinding devices are usually used to crush the materials and grind them to a certain precision. At present, the commonly used equipment on the market mainly includes blade type, ultracentrifugal type, planetary and vibrating ball mill type, jaw type, disc type, vibrating cup type, cutting type, mortar type, etc. However, most of these equipments cannot achieve simultaneous coarse grinding and fine grinding. Usually, solid materials are crushed and then put into another equipment for fine grinding. In addition, the fine grinding equipment can only grind a sample with a particle size accuracy at a time. When the pa...

AI Technical Summary

Problems solved by technology

However, most of these equipments cannot realize coarse grinding and fine grinding at the same time. Usually, the solid material is crushed and then put into another equipment for fine grinding. In addition, the fine grinding equipment can only grind samples with one particle size precision each time. , When the particle size accuracy of the sample changes, the grinding head usually needs to be replaced. In addition, the filtering part of these devices is usually installed with a fixed screen, which can only filter materials of one particle size at a time. Equipment, the sieving method of the sieve is to shake back and forth. This method has low screening efficiency and poor effect, and there are materials remaining on the sieve after screening.

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