Cylinder type specific cutter grinder

Abstract

The invention relates to a cylinder type specific cutter grinder, which is fence cylinder type. The cylinder type specific cutter is a grinding cutter having fixation crossing combination with an internal tooth and an outer tooth. The cylinder type specific cutter includes movable and stationary specific cutter rings (5, 2) of prepared material initial grinding, movable and stationary specific cutter rings (19, 14) of coarse grinding, movable and stationary specific cutter rings (20, 15) of micro refining, and movable and stationary specific cutter rings (21, 16) of ultramicro refining. The movable and stationary specific cutter rings in the cylinder type specific cutter grinder fully employ independent inventive fence cylinder type combination cutter. The invention provides a reasonable grinder for the exploitation and application of the grinder, especially for ultramicro refining flexible, soft, hard and plastic or the like specific material taking fiber as representative.

Description

technical field [0001] The invention relates to a cylindrical special knife pulverizer, which belongs to the technical field of pulverizers. Background technique [0002] In the 21st century, biorefinery technology appeared, such as the production of ethanol from wood fiber. The pretreatment in this technology has opened up a new and vibrant prospect for the ancient biomass industry including fiber shredders. [0003] However, with the development of modern science and technology, it is increasingly difficult for traditional pulverizers to meet the needs of modern production, especially the more urgent requirements for ultra-fine fiber materials at room temperature. For example, fine crushing of refined cotton in paper pulp, chemical fiber, and light industry, fine crushing of carboxymethyl cellulose (CMC), ethyl cellulose (cellulose acetate) and microcrystalline cellulose, plant hemp straw, silk, chitin and Fine crushing of Chinese herbal medicines, fine crushing of raw ma...

AI Technical Summary

Problems solved by technology

[0017] There is still a problem with the pin grinder, that is, there is no mutual support at the upper end of the upright knife of the pin, so considering the strength of the pin knife, it is impossible to make it thinner and longer.

[0018] The second is: when the rotor pin rotates between the two teeth of the stator, although the air passage is not completely blocked, the opening and closing of the rotation will generate air pulse oscillations, which will affect the smooth cooling of the air

[0019] The technical problem of the MД disc grinder is that the dry air cooling effect is poor and forced ventilation is required or even liquid nitrogen cooling is required. This is because the gap area between the double disc grinding teeth is small and the ventilation resistance is large.

[0020] There are technical problems in the conical horizontal pulverizer and the MДK ring disc pulverizer: First, in order to maintain the area of ​​the drum cloth knife, the area of ​​the stator cloth knife and the water cooling area of ​​the stator shell jacket, the diameter of the cylinder is required to be enlarged in proportion to the length of the machine. The body occupies a large area, and at the same time, because the annular gap between the rotor and the stator is small, it is also impossible to make it larger for the purpose of increasing production capacity.

[0023] One is: using a horizontal turbine pulverizer or a vertical airflow vortex micronizer to pulverize the pulp board before feeding the material needs to be prepared for fragmentation. Manual shredding is unrealistic. Although there are special crushers in the market, the capacity is not as good as that of pulverizers. matching is a problem

[0024] The second is: use a horizontal grinder for coarse crushing of wood chips. Because the wood chips are heavy and easy to sink to the bottom, they are easy to jam and vibrate with flying knives, so that they cannot be crushed evenly and full of knives. High energy consumption and low output are the reasons

[0025] The third is: the internal teeth of the fixed fixed knife of the pulverizer are easily blocked by crushed fine powder, especially the larger wet material is easy to fill the gap between the teeth, so that the fine powder cannot go out and the coarse powder cannot enter and enter. Poor Manufacturing Continuity

[0026] The fourth is: the design of the pulverization motor, the distance between the fixed knife and the knife is relatively large, the wear resistance of the blade is poor, and the number of size cutting times and the matching of the grinding surface are added.

Its crushing effect, product fineness, etc. are worse than supersonic airflow crushing, and if compressed air is used for supersonic airflow, the energy consumption at one time is high, and general users are unwilling to accept it.

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