Pebble coal isobaric discharge device with coal mill

• Main Authors: CHENG JIEBING, FU WENLONG, CHEN LIANGSHAN, LIU DEGANG, CHANG LINGYAO, DU CHANGFEI, SUN YAN
• Format: Patent
• Language: English
• Published: 04.03.2015
• 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 relates to a pebble coal isobaric discharge device with a coal mill. The pebble coal isobaric discharge device comprises the coal mill and a pebble coal collecting box; the coal mill is communicated with the pebble coal collecting box through a pebble coal channel. The pebble coal isobaric discharge device is characterized in that a first pneumatic plug board valve is arranged between a coal mill outlet and the pebble coal channel, a second pneumatic plug board valve is arranged between the outlet end of the pebble coal channel and the pebble coal collecting box, both the first pneumatic plug board valve and the second pneumatic plug board valve are driven by a straight travel air cylinder with a cylinder diameter Phi of 200, a feeding opening in the upper end of the pebble coal collecting box is connected with an observation box, the outlet end of the pebble coal channel is connected to the observation box, a pressing plate is arranged between the observation box and the pebble coal collecting box and is connected with a sealed air cylinder, and a silicone rubber waveform expansion joint is arranged between the bottom of the observation box and the pressing plate. The pebble coal isobaric discharge device has the advantage of simple and effective arrangement and operation methods.