Device for separating solids from air

An air material separator that separates scrap from a conveying air flow;

• the separator comprising:
• an outer sidewall defining an inlet chamber;
• the outer sidewall defining a first opening that receives the scrap and conveying air flow;
• the outer sidewall has an upper edge and a lower edge;
• the upper edge being spaced from the lower edge by the height of the outer sidewall;
• a spiral wall extending from the upper edge to the lower edge of the outer sidewall;
• the spiral wall contacting the upper edge of the outer sidewall adjacent the first opening;
• the spiral wall having an outer edge and an inner edge;
• an inner sidewall disposed radially inwardly of the outer sidewall;
• a flow path being defined intermediate the outer sidewall, the inner sidewall, and under the spiral wall such that the conveying airflow and scrap are directed through the flow path;
• the flow path having a length;
• a conical sidewall defining an outlet chamber;
• the outlet chamber being disposed under the inlet chamber and in fluid communication with the inlet chamber;
• substantially the entire length of the flow path being open to the outlet chamber;
• the conical sidewall is perforated;
• the perforations defining an air outlet for the separator;
• a top wall connected to an upper edge of the outer sidewall and an upper edge of the inner sidewall;
• the spiral wall disposed intermediate the top wall and the lower edge of the outer sidewall;
• and
• wherein the inner sidewall defines an inner space;
• the top wall covers the inner space disposed inside inner sidewall.

An air material separator that separates scrap from a conveying air flow;

• the separator comprising:
• an outer sidewall defining an inlet chamber;
• the outer sidewall defining a first opening that receives the scrap and conveying air flow;
• the outer sidewall has an upper edge and a lower edge;
• the upper edge being spaced from the lower edge by the height of the outer sidewall;
• a spiral wall extending in a spiral from the upper edge to the lower edge;
• the spiral wall contacting the upper edge of the outer sidewall adjacent the first opening;
• the spiral wall having an outer edge and an inner edge;
• an inner sidewall disposed radially inwardly of the outer sidewall;
• a flow path being defined intermediate the outer sidewall, the inner sidewall, and the spiral wall such that the conveying airflow and scrap are directed through the flow path;
• the inner sidewall defining an inner space;
• a conical sidewall defining an outlet chamber;
• the outlet chamber in fluid communication with the inlet chamber;
• the conical sidewall is perforated;
• the perforations defining an air outlet for the separator;
• the conical sidewall defining an opening for the scrap;
• the separator being free of structures intermediate the inlet chamber and the outlet chamber;
• an inlet disposed radially outside the outer sidewall;
• the inlet having a longitudinal axis;
• the inlet having an inlet outer sidewall disposed tangential to the outer sidewall that defines the inlet chamber;
• and
• a supply line connected to the inlet;
• the supply line having a longitudinal axis;
• the longitudinal axis of the supply line disposed at a first reference angle with respect to longitudinal axis of the inlet;
• the first reference angle being larger than zero degrees.