Coal mine crushing device

• Main Authors: ZHAO PENGXIANG, LI XIAOJIANG, HE YONGCHEN, JIA YONGYONG, LOU FANG, LIN HAIFEI, WANG JIAN'AN, LIU LIDONG, MUSHAJIANG WUSHOUER, JIN SHIKUI, ZHUO RISHENG, XU PEIYUN, WANG CHAO, WANG ZHEN
• Format: Patent
• Language: Chinese; English
• Published: 30.06.2020
• Subjects: CRUSHING, PULVERISING, OR DISINTEGRATING; CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN; PERFORMING OPERATIONS; PREPARATORY TREATMENT OF GRAIN FOR MILLING; TRANSPORTING

The utility model discloses a coal mine crushing device. The device comprises a rack, a primary crushing mechanism, a secondary crushing mechanism and a collecting sieve, the primary crushing mechanism comprises a feeding pipeline, a first impact crushing disc and a second impact crushing disc opposite to the first impact crushing disc; a conveying auger is arranged in the feeding pipeline, the secondary crushing mechanism comprises a crushing cylinder, a crushing roller arranged in the crushing cylinder and a strip-shaped grinding block arranged on the inner side wall of the crushing cylinder, a discharging opening is formed in the bottom end of the crushing cylinder, and the collecting screen is located below the discharging opening. The coal mine can be preliminarily impacted and groundthrough the conveying packing auger, the second impacting and smashing disc is driven by the telescopic hydraulic cylinder to impact the first impacting and smashing disc to preliminarily impact andsmash the coal mine, and t