Disclosed is a grinding roller for waste tires and a multifunctional crusher having the grinding roller. The grinding roller comprises a roll shaft and a plurality of grinding components. The grinding components each comprise a grinding frame and grinding blocks mounted in grooves of the grinding frame. Each grinding block has a grinding surface that protrudes with respect to the grooves. Axial interval adjusting rings are disposed on the ring shaft for separating the grinding components at a predetermined distance to cut waste tires into blocks. The crusher comprises a box for housing the grinding roller. The box is provided with a material inlet and a material outlet. Axial blockers are mounted on the crusher to help grind waste tires into fine powder.

A roller mill module with a fixed grinding roller with a first grind surface rotatably supported within a grind area between a first drive end and a second drive end of a support structure; an adjustable grinding roller with a second grind surface rotatably supported within the grind area; the adjustable grinding roller movable with respect to the fixed grinding roller to adjust a grind gap between the first grind surface and the second grind surface; a drive shaft of the fixed grinding roller and a drive shaft of the adjustable grinding roller extending from the first and the second drive ends of the support structure; and a sample port provided in a front side of the support structure; a sample passage coupled to the sample port extending to a position below the grind area and opposite a sampler stop surface.

A roller mill module with a fixed grinding roller with a first grind surface rotatably supported within a grind area between a first drive end and a second drive end of a support structure; an adjustable grinding roller with a second grind surface rotatably supported within the grind area; the adjustable grinding roller movable with respect to the fixed grinding roller to adjust a grind gap between the first grind surface and the second grind surface; a drive shaft of the fixed grinding roller and a drive shaft of the adjustable grinding roller extending from the first and the second drive ends of the support structure; and a sample port provided in a front side of the support structure; a sample passage coupled to the sample port extending to a position below the grind area and opposite a sampler stop surface.

A method of processing magnetite iron ore, including the step of using a high pressure grinding roller (HPGR) to crush the magnetite. An apparatus for processing magnetite iron ore, including a first high pressure grinding roller for crushing the magnetite, a dry screen for selectively feeding back material to the first high pressure grinding roller, an air classifier for selectively feeding back material to the second high pressure grinding roller, a second high pressure grinding roller for grinding the magnetite, and a dry magnetic separation (DMS) unit for discarding non-magnetic materials, wherein the dry magnetic separation unit is outside the two feedback loops associated with the first and second high pressure grinding rollers.

A method of processing magnetite iron ore, including the step of using a high pressure grinding roller (HPGR) to crush the magnetite. An apparatus for processing magnetite iron ore, including a first high pressure grinding roller for crushing the magnetite, a dry screen for selectively feeding back material to the first high pressure grinding roller, an air classifier for selectively feeding back material to the second high pressure grinding roller, a second high pressure grinding roller for grinding the magnetite, and a dry magnetic separation (DMS) unit for discarding non-magnetic materials, wherein the dry magnetic separation unit is outside the two feedback loops associated with the first and second high pressure grinding rollers.

A cracker roller disc has a first portion radially outward of the centre of substantially constant thickness, and a second portion radially outward of the first portion which second portion tapers towards the periphery of the disc. A plurality of upstanding ridges extending radially outward across the second portion on opposed faces of the disc are machined to define respective conical surfaces forming radially extending edges on opposed faces of the disc. The disc is provided with one or more circular or spiral grooves which cut across the edges in a substantially perpendicular direction to the edges. The grooves extend the effective length of each edge.

The present invention discloses an adaptive and rapid repairing device for single roller, which includes a working module and a mechanical arm module, which are fixedly connected, where the mechanical arm module is connected with a movable module; the working module includes a supporting frame, symmetrical dovetail grooves are opened in two sides of the supporting frame, the dovetail grooves are movably connected with four sliding supports symmetrically arranged along the supporting frame; a connecting rod support penetrates the two through holes opened in the top of the sliding support, the top end of the connecting rod support is hinged with a long connecting rod; the supporting frame is provided with a worm gear mounting support, the worm gear mounting support is equipped with worm gears and worms through rotating shafts, and the worm is fixedly connected with an output shaft of a worm motor.

The present invention discloses an adaptive and rapid repairing device for single roller, which includes a working module and a mechanical arm module, which are fixedly connected, where the mechanical arm module is connected with a movable module; the working module includes a supporting frame, symmetrical dovetail grooves are opened in two sides of the supporting frame, the dovetail grooves are movably connected with four sliding supports symmetrically arranged along the supporting frame; a connecting rod support penetrates the two through holes opened in the top of the sliding support, the top end of the connecting rod support is hinged with a long connecting rod; the supporting frame is provided with a worm gear mounting support, the worm gear mounting support is equipped with worm gears and worms through rotating shafts, and the worm is fixedly connected with an output shaft of a worm motor.

Processes and systems for commercial scale milling of wheat are disclosed. Processes include multiple tempering steps of controlled duration and cubing of the wheat kernel between two tempering steps. The cubing between the tempering breaks the kernels, or stresses the kernels, in a manner that enables a high degree of separation of the bran and endosperm early in the flour production process. An embodiment includes tempering for a first period between hour and 2 hours, cubing in a roll crusher with longitudinal corrugations on one roll and circumferential corrugations on a second roll, removing fines from the cubed kernels, and further tempering of the cubed kernels for a period between hour and 2 hours.

Processes and systems for commercial scale milling of wheat are disclosed. Processes include multiple tempering steps of controlled duration and cubing of the wheat kernel between two tempering steps. The cubing between the tempering breaks the kernels, or stresses the kernels, in a manner that enables a high degree of separation of the bran and endosperm early in the flour production process. An embodiment includes tempering for a first period between hour and 2 hours, cubing in a roll crusher with longitudinal corrugations on one roll and circumferential corrugations on a second roll, removing fines from the cubed kernels, and further tempering of the cubed kernels for a period between hour and 2 hours.