Abstract: A separation apparatus (A) separates particulates such as sand from a slurry of water/sand/manure. Particularly, passage (20) receives the slurry and injectors (40) assist the slurry over ramp (42) and aid in separating the sand and organic material from the slurry. The sand proceeds through a discharge (44) and preferably a counter flow of sanitizer from sterilizing passage (60) proceeds through the sand. Cleaned and sanitized sand is temporarily stored in a collector (62).

Abstract: The invention relates to an apparatus for classifying charge material, comprising a static classifier which has a ventilating base oriented obliquely to the vertical and traversed by classifying gas; an inlet opening for charging the charge material to the ventilating base; an outlet opening for the coarse material; a downstream dynamic classifier which comprises at least one rotor; and at least one outlet opening for the classifying gas laden with fine material. The ventilating base has a ratio of width to vertical height of at least 0.45, preferably of at least 0.6.

Abstract: A bed height of a fluidized bed is detected which influences reaction of a fluidized-bed equipment. In the fluidized-bed equipment in which a fluidized particle is put into the vessel, physical properties at a plurality of points within the vessel are measured in a height direction thereof. An interior of the vessel is divided into upper and lower two regions. Physical property distribution curves of the respective regions are found, to find an intersection between the two curves as a bed height. Thus, it is possible to find the bed height of the fluidized bed which influences the reaction of the fluidized-bed equipment. An operating quantity which influences the reaction can be adjusted or regulated accurately.

Abstract: A separator is fed with liquid from a slaughterhouse which will be a mixture of water, tallow, and solids. The tallow rises to the top, and solids go to the bottom. Nearly clean water is withdrawn between the top and bottom. The nearly clean water is withdrawn into a plenum ring which is blocked at one point and has an outlet pipe connected adjacent to the block. Therefore, the liquid in the plenum ring flows in only one direction. The cross section of the plenum ring is many times greater than the cross section of the outlet pipe so that the flow within the plenum ring is gentle. Baffles in the plenum ring divert any tallow which rises to the top of the plenum ring back into the separator. A sump in the plenum ring adjacent to the outlet pipe draws off any solid which settle out in the plenum ring. A constant bleed is provided at the bottom of the sump to help withdraw the settling solids.

Abstract: Shredded scrap is conveyed from a heat generating automobile shredder to one end of a horizontal tumbling drum and is caused to move in one direction through the drum as it tumbles. An air stream which has aspirated heat generated by the shredder, and carrying particulate material removed from the scrap in the shredder, is directed by ductwork to the opposite end of the tumbling drum where the air and particulate matter move in counterflow through the tumbling scrap to remove additional particulate material therefrom as the shredded particles are being showered through the air stream. The particulate material in the air stream emerging from the tumbling drum is separated out by a cyclonic separator. A bypass air stream duct with an adjustable valve bypasses some of the air stream around the tumbling drum to control the velocity of the air stream through the tumbling drum and thus to control the size of the particulate material removed from the scrap by the counterflow air stream.

Abstract: A plurality of axially spaced blades are rotated by a drive shaft positioned above the feed trough. The blades rotate transversely through the upper feed layer skimming off the foreign matter which is deposited in a container alongside the trough as the blades are rotated downwardly. Preferably, the blades are rotated through scraping wires on their downward track to clean the blades prior to passing through the feed once more.