Grinding mechanism for pulverized coal production

Abstract

The invention discloses a grinding mechanism for pulverized coal production. A first supporting rod and a second supporting rod drive a grinding roller to rotate around the central axis of a rotary drum, and meanwhile the grinding roller rotates automatically, and thus pulverized coal is fully ground. A power oil cylinder drives a translation rod to move up and down, and a connecting rod structure formed among the translation rod, a transverse rod, a transmission rod, a vertical rod and a third supporting rod is used for driving a scraping plate to move downwards to abut against the pulverized coal. The scraping plate rotates around the central axis of the rotary drum along with the second supporting rod, and the scraping plate scrapes the pulverized coal flatly and distributes the pulverized coal evenly, so that the situation that the grinding effect is affected due to accumulation of the pulverized coal is avoided. The problem that in an existing grinding mechanism, drying and grinding are conducted at the same time, and danger exists is solved through a drying device. The drying device drives stirring blades A and stirring blades B to stir through a grinding motor, and the pulverized coal makes full contact with a main electric heating pipe, so that the pulverized coal is evenly heated. A first oil cylinder drives dispersing pieces to rotate, the included angle between the dispersing pieces and the stirring pieces A is adjusted, and therefore the pulverized coal makes full contact with the dispersing pieces.

Description

technical field [0001] The invention specifically relates to a grinding mechanism for pulverized coal production. Background technique [0002] Pulverized coal refers to coal with a particle size of less than 0.5 mm. The preparation of coal powder needs to go through processes such as crushing, grinding, drying, etc., so that the raw coal is processed into coal powder whose particle size and moisture content meet the requirements of blast furnace coal injection. The grinder is one of the important equipment in the coal powder preparation process, but the existing grinders have the following problems: First, the grinder has a poor grinding effect, the grinding is not sufficient, the coal powder cannot be fully and evenly ground, and there is a grinding dead angle; The second is that the grinding mechanism generally uses the flue gas provided by the heat source to dry the coal powder, and the drying and grinding are carried out at the same time. However, since the coal mill m...

AI Technical Summary

Problems solved by technology

The grinder is one of the important equipments in the coal powder preparation process, but the existing grinders have the following problems: First, the grinding effect of the grinder is not good, the grinding is not sufficient, the coal powder cannot be fully and evenly ground, and there are grinding dead angles; The second is that the grinding mechanism generally uses the flue gas provided by the heat source to dry the coal powder, and the drying and grinding are carried out at the same time, but because the coal mill may generate sparks when grinding the coal powder, it is dangerous to grind in a high temperature environment

Images