Upper deslagging system on full-section vertical shaft heading machine

Abstract

The invention provides an upper deslagging system on a full-section vertical shaft heading machine. The upper deslagging system comprises a cutter head provided with a slag suction opening and a jet flow opening, and a multi-layer sleeve type center column arranged in the center of the cutter head; the multi-layer sleeve type center column comprises a slag suction pipe communicating with the slag suction opening and a jet flow pipe arranged outside the slag suction pipe in a sleeving mode and communicating with the jet flow opening; the upper deslagging system further comprises a relay platform; a solid-liquid separation device communicating with the slag suction pipe is arranged on the relay platform; a slurry pump is arranged on the slag suction pipe; the solid-liquid separation device is provided with a solid storage bin and a liquid storage bin; the upper deslagging system further comprises a hoisting bucket and a liquid discharging pipe which communicates with the liquid storage bin and is used for extending out of a vertical shaft; a winch is connected with the hoisting bucket; and the slurry pump is arranged on the liquid discharging pipe. By arranging the relay platform with the solid-liquid separation device, slag slurry at a tunneling section is sucked into the relay platform for separation of rock slag from the slurry when the cutter head of the heading machine breaks rock, and then the rock slag and the slurry are respectively discharged, so that the slag discharging capability of the upper deslagging system can be obviously improved.

Description

technical field [0001] The invention relates to the technical field of shaft construction, in particular to a slag discharging system on a full-section shaft boring machine. Background technique [0002] The shaft is the main channel for underground mineral mining, long tunnel ventilation and other underground projects. In the process of shaft construction, rock slag will be continuously produced at the excavation section when the cutterhead of the roadheader breaks the rock. One of the difficulties in shaft construction is how to discharge slag vertically and efficiently. [0003] At present, the existing shaft boring machines generally use mechanical discontinuous slagging such as hopper or fluid suction slagging when discharging slag. The slagging efficiency of mechanical discontinuous slagging is low, and the suction slagging is more efficient. The slurry is directly discharged from the shaft. For deep shafts > 50 meters, especially ultra-deep shafts > 100 meters,...

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Problems solved by technology

[0003] At present, the existing shaft boring machines generally use mechanical discontinuous slagging such as hopper or fluid suction slagging when discharging slag. The slagging efficiency of mechanical discontinuous slagging is low, and the suction slagging is more efficient. The slurry is directly discharged from the shaft. For deep shafts > 50 meters, especially ultra-deep shafts > 100 meters, the space in the shaft is limited. If the slurry is discharged together, the motor power and the suction pressure and power of the mud pump will be affected. There are extremely high requirements for use, and correspondingly the motors, pump bodies and pipelines used also occupy a relatively large space. The limitation of space makes the slag discharge capacity of the existing upper slag discharge system limited. With the continuous progress of excavation, the discharge The slag distance keeps increasing, but the slag production rate remains basically unchanged, so that the slag discharge capacity cannot match the tunneling capacity of the shaft boring machine, which in turn affects the tunneling efficiency of the shaft boring machine

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