A crusher for cylindrical core samples has two oscillating wear plates. Each wear plate has an angled introductory portion, which open to a mouth sufficiently large to receive core samples having diameter above 100 mm. Each wear plate has at least one intermediate surface extending between each angled introductory portion and a curved central portion of the wear plate.

A crusher for cylindrical core samples has two oscillating wear plates. Each wear plate has an angled introductory portion, which open to a mouth sufficiently large to receive core samples having diameter above 100 mm. Each wear plate has at least one intermediate surface extending between each angled introductory portion and a curved central portion of the wear plate.

A jaw plate retainer assembly is arranged to releasably secure a jaw plate at a jaw of a jaw crusher. The retainer assembly is configured specifically for positioning at a rearward region of the jaw plate, such that no part of the retainer assembly is exposed to the crushing chamber and to protect it when mounted in use by the jaw plate.

A jaw plate retainer assembly is arranged to releasably secure a jaw plate at a jaw of a jaw crusher. The retainer assembly is configured specifically for positioning at a rearward region of the jaw plate, such that no part of the retainer assembly is exposed to the crushing chamber and to protect it when mounted in use by the jaw plate.

The phytoremediation process for removing hazardous metals, such as Be, Cr, Co, Mn, and Ra, from contaminated soil and/or coal fly ash, e.g. in a landfill, includes growing plants in the soil and/or fly ash; incorporating a root growth inducing auxin in the soil and/or fly ash in the vicinity of the growing plants and subsequently cultivating the plants until a predetermined increase in root mass of the plant roots has occurred. The preferred auxin is 3-4-deoxy-glucosamine, which was found to increase plant root mass by 200% to 800%. An organic synthesis using glucosamine as starting material or a bioengineering process starting with commercial micronized shrimp meal and/or crab meal moistened with water can provide the 3-4-deoxy-glucosamine. Economical embodiments of the process use plants that produce marketable products and recovers valuable metals.

The invention relates to a crusher assembly for a jaw crusher having a swing jaw (10) and a crusher jaw (30) having teeth (33) formed on the breaking sides thereof, the crusher jaw (30) comprising end faces (35) at the opposite ends thereof, wherein a clamping piece (50) having a clamping surface (52) acts on the one end face (35) and the other end face (35) is supported on a clamping piece (20), wherein the clamping piece (50) and the clamping element (20) are interchangeably connected to the swing jaw (10), wherein the swing jaw (10) comprises a head part (11) having a pivot bearing (12) on the end region thereof facing away from the clamping piece (50), and wherein the crusher jaw (30) at least partially covers the region of the swing jaw (10) in front of the pivot bearing (12). A wear-optimized design in support of long service life is made possible by means of such a crusher assembly and the crusher jaw (30) can always be easily replaced. Furthermore, material flow can be optimized in that the risk of bridging in the crusher mouth is reduced.

The invention relates to a crusher assembly for a jaw crusher having a swing jaw (10) and a crusher jaw (30) having teeth (33) formed on the breaking sides thereof, the crusher jaw (30) comprising end faces (35) at the opposite ends thereof, wherein a clamping piece (50) having a clamping surface (52) acts on the one end face (35) and the other end face (35) is supported on a clamping piece (20), wherein the clamping piece (50) and the clamping element (20) are interchangeably connected to the swing jaw (10), wherein the swing jaw (10) comprises a head part (11) having a pivot bearing (12) on the end region thereof facing away from the clamping piece (50), and wherein the crusher jaw (30) at least partially covers the region of the swing jaw (10) in front of the pivot bearing (12). A wear-optimized design in support of long service life is made possible by means of such a crusher assembly and the crusher jaw (30) can always be easily replaced. Furthermore, material flow can be optimized in that the risk of bridging in the crusher mouth is reduced.

Heavy-duty material processors (e.g., shears, concrete crushers) include a jaw that pivotally connects to another jaw. A hydraulic cylinder extends between the jaws to open and close the jaws in a shearing motion. Cutting/shearing/crushing blade inserts mount to detachable blade holders, which in turn mount to one of the jaws. Wedge blocks securely and detachably attach the blade inserts to the remainder of their associated jaw, and rely on force-amplifying wedge surfaces to ensure a secure attachment. The detachable blade holders may include lateral flanges that extend across an otherwise exposed face of their respective underlying jaw bodies to protect the jaw bodies during use. A blade on one of the jaws is laterally adjustable, which helps to free a jam if one of the jaws gets jammed into the space between blades in the other jaw.

Heavy-duty material processors (e.g., shears, concrete crushers) include a jaw that pivotally connects to another jaw. A hydraulic cylinder extends between the jaws to open and close the jaws in a shearing motion. Cutting/shearing/crushing blade inserts mount to detachable blade holders, which in turn mount to one of the jaws. Wedge blocks securely and detachably attach the blade inserts to the remainder of their associated jaw, and rely on force-amplifying wedge surfaces to ensure a secure attachment. The detachable blade holders may include lateral flanges that extend across an otherwise exposed face of their respective underlying jaw bodies to protect the jaw bodies during use. A blade on one of the jaws is laterally adjustable, which helps to free a jam if one of the jaws gets jammed into the space between blades in the other jaw.

The invention relates to an apparatus for comminuting of material. The apparatus includes a first conveyor structure with a first conveyor surface, a second conveyor structure with a second conveyor surface, and in which apparatus the first conveyor surface and the second conveyor surface are set facing each other. The conveyor surfaces are arranged to define a comminuting space in the apparatus, The apparatus has means for bringing the conveyor surfaces in a movement in the direction of movement D where the two conveyor surfaces placed to face each other are arranged to move from a first end of the conveyor structures towards a second end of the conveyor structures. The conveyor surfaces positioned to face each other are placed in a convergent manner so that the gap between the conveyor surfaces narrows when examined in the movement direction of the conveyor surfaces, so that the advancing movement of the conveyor surfaces is arranged to bring about compression in the material being comminuted. In the invention, the conveyor surfaces are in a double-converging manner so that in addition to said convergence in the movement direction, the conveyor surfaces are additionally placed in a convergent manner so that the gap between the conveyor surfaces also narrows in the transverse direction in relation to the movement direction, said comminuting space thus becoming double-converging.