A high-speed pulverizer

Abstract

The invention discloses a high-speed grinder which comprises a grinding pot, wherein a hammer used for mashing a material is arranged in the grinding pot; a feeding port and a discharging port communicate with the inner cavity of the grinding pot; a position, near the feeding port, of the inner cavity of the smashing pot, also communicates with a residual sample recovering port; and through a two-way valve, the feeding port or the residual sample recovering port is opened. The high-speed grinder provided by the invention has the advantages that the residual sample recovering port is arranged, and the feeding port or the residual sample recovering port is opened through the two-way valve; accordingly, when residual materials need to be cleaned up in the later period of material grinding operation, the feeding port is closed through the two-way valve and the residual sample recovering port is opened, thereby recovering the residual materials totally and guaranteeing the integrity of a residual sample; and meanwhile, the residual materials are prevented from remaining in the inner cavity, and cross contamination of the residual materials is reduced.

Description

technical field [0001] The invention relates to the field of crushing equipment, in particular to a high-speed grinder. Background technique [0002] The high-speed pulverizer is suitable for industries such as coal, medicine, chemical industry, pesticide, food and grain, and has a wide range of uses. [0003] Such as figure 1 As shown, the high-speed pulverizer includes a feed inlet 1, a material bowl cover 2, a pulverizer bowl 3, a high-speed rotary drive device 4, a frame 5, a high-pressure air blowback port 6, a discharge port 7, a screen 8, a hammer 9, And the negative pressure recovery device that is connected with discharge port 7. [0004] Among them, the high-speed rotary drive device 4 drives the hammer head 9 to perform high-speed rotary motion, and the material is poured into the crushing bowl 3 from the feed port 1, and is crushed by the high-speed rotating hammer head 9 and between the hammer head 9 and the inner wall of the crushing bowl 3. Grinding and cru...

AI Technical Summary

Problems solved by technology

[0007] However, the high-speed pulverizer in the prior art cannot completely clean the screen 8 because the high-pressure air blowback port 6 is arranged at the bottom of the discharge port 7; in addition, the high-pressure air blown in easily carries residual The sample dust is ejected from the feed port 1, resulting in incomplete samples and affecting the working environment

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