The invention relates to a method and a plant for the continuous production of engineered stone slabs. In the method, raw materials comprising at least one mineral filler and one organic binder are mixed, applied to a lower belt of a dual-belt press, or a conveying means mounted upstream of the lower belt, and subsequently continuously pressed, and the binder is cured. A continuously-obtained material strand is separated into individual engineered stone slabs. It is provided that the mixing operation of the raw materials is carried out at staggered times in a batch mixing operation by means of at least two separate mixing devices. The mixed raw materials from the mixing devices are transferred into one, or multiple, spreading device(s) at staggered times and are applied continuously and without interruption to the lower belt, or the conveying means mounted upstream of the lower belt, by means of the spreading device(s).

A slurry scraping mechanism and an applying and scraping device used in an SG abrasive production process includes a scraping master support; a scraper, wherein the scraper is connected with the scraping master support through a suspension component such that the scraper is suspended, and a damping spring is arranged in the suspension component; and a torsion spring adjusting component, wherein the torsion spring adjusting component includes a plurality of torsion springs supported by a torsion spring support shaft, the torsion spring support shaft is fixed to the scraping master support, the torsion spring support shaft is movable up and down relative to the scraping master support, the torsion springs are clamped in a V-shaped plate, an end side of the V-shaped plate is connected with the scraping master support, and a side surface of the V-shaped plate is connected with the scraper.

There is provided an apparatus and process for manufacturing a brick or paver with a high content of coal ash (ranging from 60% to 100% coal ash or fly ash) so that a waste product (coal ash, and more particularly Class F coal ash) from a coal-fired power plant is incorporated into a building product (high content fly ash brick or paver). Also provided is a variable firing tray to support the dried, high content coal ash bricks/pavers as the dried products are sent through a tunnel kiln, to improve circulation around the individual bricks/pavers and thereby result in reduced firing time in the kiln.

A slurry scraping mechanism and an applying and scraping device used in an SG abrasive production process includes a scraping master support; a scraper, wherein the scraper is connected with the scraping master support through a suspension component such that the scraper is suspended, and a damping spring is arranged in the suspension component; and a torsion spring adjusting component, wherein the torsion spring adjusting component includes a plurality of torsion springs supported by a torsion spring support shaft, the torsion spring support shaft is fixed to the scraping master support, the torsion spring support shaft is movable up and down relative to the scraping master support, the torsion springs are clamped in a V-shaped plate, an end side of the V-shaped plate is connected with the scraping master support, and a side surface of the V-shaped plate is connected with the scraper.

The invention relates to a method and a plant for the continuous production of engineered stone slabs. In the method, raw materials comprising at least one mineral filler and one organic binder are mixed, applied to a lower belt of a dual-belt press, or a conveying means mounted upstream of the lower belt, and subsequently continuously pressed, and the binder is cured. A continuously-obtained material strand is separated into individual engineered stone slabs. It is provided that the mixing operation of the raw materials is carried out at staggered times in a batch mixing operation by means of at least two separate mixing devices. The mixed raw materials from the mixing devices are transferred into one, or multiple, spreading device(s) at staggered times and are applied continuously and without interruption to the lower belt, or the conveying means mounted upstream of the lower belt, by means of the spreading device(s).

Disclosed is a slurry screeding mechanism used in the production process of the SG abrasive. The slurry screeding mechanism includes a screeding main support; a screeding plate which is connected with the screeding main support through a suspension component so that the screeding plate is suspended, and a damping spring is arranged in the suspension component; and a torsion spring adjusting component, wherein the torsion spring adjusting component includes a plurality of torsion springs supported by a torsion spring support shaft; the torsion spring support shaft is fixed on the screeding main support; the torsion spring support shaft can move up and down relative to the screeding main support; the torsion springs are clamped in a V-shaped plate; an end side of the V-shaped plate is connected with the screeding main support; and a side surface of the V-shaped plate is connected with the screeding plate.

A format compensator for a pressing device, comprising a compensating element (7) of a given thickness (S), structured so as to be interposed between the lower punch and the upper punch (10, 11) of a pressing device so as to be arranged in contact with the punches (10, 11) during pressing.

A format compensator for a pressing device, comprising a compensating element (7) of a given thickness (S), structured so as to be interposed between the lower punch and the upper punch (10, 11) of a pressing device so as to be arranged in contact with the punches (10, 11) during pressing.