AN IMPROVED APPARATUS FOR COMMINUTING SOLID WASTE MATERIALS

• Main Authors: IRWIN, JERE, F, CORBIN, GERALD, M
• Format: Patent
• Language: English; French
• Published: 14.12.1995
• Edition: 5
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; CRUSHING, PULVERISING, OR DISINTEGRATING; CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MAKING GRANULES OR PREFORMS; MILLING GRAIN; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; PREPARATORY TREATMENT OF GRAIN FOR MILLING; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A solid waste comminuting apparatus (10) for reducing solid waste material (12). The apparatus (10) has rolls (42, 44) for severing material that is fed into the entrance (32). After the material is severed, it is carried by an airstream to a fan (112). The subdivided pieces are directed to a separator screen (131) mounted within the centrifugal housing. The airstream carries the small pieces (14e) through the separator screen (131) into an outer volute chamber (135) for discharge from the apparatus. The large pieces (14a-14d) which do not pass through the separator screen (131) are recycled through a recycle outlet (143) and a recycle conduit (150) back to the rolls (42, 44) for further size reduction. Appareil (10) de fragmentation des déchets industriels solides (12) comportant des cylindres broyeurs (42, 44) recevant par une entrée (32) le matériau entrant qui, une fois broyé, est transporté par un courant d'air jusqu'à une soufflante (112), puis vers un crible (131) placé dans une enceinte de centrifugation. Les petits fragments (14e) portés par le courant d'air traversent le crible (131), puis passent dans un diffuseur extérieur (135) d'où ils sont éjectés de l'appareil. Quant aux gros fragments (14a-14d) arrêtés par le crible (131), ils retournent par un orifice (143) et un conduit (150) de recyclage aux cylindres broyeurs (42, 44) en vue d'une nouvelle fragmentation.