Fine grinding · Precision classification · Complete systems

Jet Pulverizer

Process notes

Controlled jet pulverization and size windows

Pre-classification, short collision residence and prompt classification reduce repeated milling of particles already within specification.

Jet pulverization, classification and coarse return · Example flowsheet

How it works and what it targets

Feed is first screened by classification for particles already in the acceptable size range. Coarse particles enter milling, are promptly extracted and classified after collision, and return if still oversize. The focus is useful product inside a specified size window and the fines fraction. Historical LNJP target-mill and Jet Pulverizer names must be read with their configurations, rather than assumed to be separate equipment based on titles alone.

Reference process steps

  1. 1Pre-classification lets acceptable particles leave before milling.
  2. 2Controlled collisions adjust intensity and residence to the feed.
  3. 3Prompt classification and coarse return reduce repeated stressing of acceptable particles.

Configuration and operating conditions

Sintered and coated materials

For sintered ternary cathodes, silicon–carbon composites and coated graphite, assess deagglomeration, primary-particle preservation and coating integrity. Targets are not directly transferable between these materials.

Glass beads and silicon metal

For reflective-material feedstocks and silicon metal, compare usable size fractions, fines, shape and metallic impurities. Trials and end use determine the combination of wear controls, air classification and screening.

Information needed for selection

Provide upper/lower size limits, permitted fines, the feed fraction already within specification, particle/coating strength, purity and output requirements.

Discuss selection inputs

Trial and acceptance considerations

Record in-spec yield, coarse recycle, fines, impurities and specific energy. Comparisons with a conventional jet mill require the same feed and product window.

Public references