A protective device may be attached to a portable incineration apparatus, or used over an open pit. The protection device may be a screen constructed of a stainless steel mesh. The screen is laid across the open top of the portable incineration apparatus or the top of the open pit. The screen forms a seal between the top portion of the walls of the incineration apparatus, or of the pit, and the portion of the screen that engages the top portion of the walls. Thereby, smoke, ashes and-embers are ...

A transportable incineration apparatus for burning wood and green waste comprises a trailer and a firebox mounted on the trailer by a suspension system operable to lift the firebox off of the ground for transport and to set the firebox onto the ground for incineration. The wheels of the trailer are mounted on independent torsion axles to increase the space available for the firebox. A system for generating an air curtain overtop the firebox reduces pollution resulting from incineration. The appa...

A replaceable and reversible hard surface wearing ring for a pulverizer roller, where the ring is locked in position on the hub of the roller by a shoulder on one side of the hub and a bolted retaining ring on the opposite side of the hub. Insertable blocks engaging both the hub and the wearing ring lock the assembly against relative rotation during operation.

The present invention is a portable incineration apparatus. The portable incinerator includes a box having four walls with a top and bottom opening. The inside of the walls are lined with a layer of refractory material to form a combustion chamber in combination with the bottom opening which is placed on the ground. A source of high velocity air is in communication with a manifold assembly which is adapted to direct an effective sheet or curtain of high velocity air across the top opening and do...

A rolling mill having a rotary bowl supported on a casing of a step-down ve transmission has two parallel gear trains leading from a common input shaft to a spur output gear wheel arranged horizontally beneath the bowl. A vertical drive shaft is splined at opposite ends and transmits the gear wheel drive, without relative rotation to the bowl. The bowl is provided with horizontal and vertical bearings which are separate from the bearings of the output gear wheel. The drive shaft, by canting slig...

An armoured ring for deflecting the dust-gas flow at the external edge, of a grinding pan, forming the external upper lateral termination of the trajectory of the material for grinding, in roller grinding mills. The cross section of the armoured ring consists of two trapezoidal shaped figures with their major bases placed together. As a result two surfaces are produced extending outwards and inwards and forming externally and internally a respective projecting edge.

A roll crushing mill comprises rollers rollable in concentric, trough-like grinding tracks. Material to be crushed is delivered to the innermost track in the path of the associated rollers. Crushed material passes from the innermost track over a vertically adjustable barrier ring into the outer track in the path of the associated rollers. Crushed material passes out of the outer track over a further barrier ring which also may be vertically adjustable.

A flueless primary combustion chamber forms a part of a pollution control incineration system having an elongated duct having one or more inlets positioned at or near grade level. An upright standpipe removably covers an inlet opening to provide a polluted gas inlet to the duct from a location elevated above grade. The primary combustion chamber is constructed with a closed top and an open bottom which removably overfits the standpipe in a manner to allow combustible material to be burned within...

A burning device includes a plurality of interconnected chamber walls defining a burning chamber and a central axis, each chamber wall also defining a plurality of chamber apertures. A plurality of flanges extend radially from the chamber walls and substantially parallel to the central axis, and a plurality of circumferentially extending lips extending from a respective flange. Each lip is radially spaced apart from an associated chamber wall and defines therebetween an air flow passageway commu...

A mobile armored incinerator apparatus on a trailer which can be driven to a site to burn explosive materials safely to eliminate noxious particulates and liquids. A primary combustion chamber has a rectangular shape with an internal telescoping loading cart. A secondary combustion chamber having a cylindrical shape is connected to the primary combustion chamber by a dust and as ash separator unit or duct which has baffles and air jets for separating ash particles from the exhaust exiting from t...