Pipeline extension equipment and slurry circulation system for slurry shield

Abstract

The invention discloses pipeline extension equipment and a slurry circulation system for a slurry shield. The pipeline extension equipment comprises a relay sealed cabin, a pipeline clamping and moving device and a pipeline mounting device, and the two ends of the relay sealed cabin correspondingly communicate with an upper pipeline and a lower pipeline, and the relay sealed cabin can temporarily store a fluid medium; the pipeline clamping and moving device is used for clamping a pre-stored pipeline to move to be aligned with the lower pipeline; and the pipeline mounting device is used for fixing the pre-stored pipeline and the lower pipeline, and the pre-stored pipeline and the lower pipeline form a new-stage lower pipeline and can move relative to the relay sealed cabin so as to release the new-stage lower pipeline from the relay sealed cabin. By applying the pipeline extension equipment, the pipeline extension operation is realized under the condition that the slurry circulation system is not stopped, the medium supply equipment does not need to be started and stopped for many times, the service life of system elements is effectively prolonged, the overhaul interval is prolonged, and the operation economy is improved; meanwhile, continuous flowing of media in the pipeline is guaranteed, and operation in high-altitude or alpine regions is achieved; and the construction environment pollution caused by slurry leakage or overflow in the pipeline extension operation is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of mud-water shield, and more specifically, relates to a pipeline extension device, and also relates to a mud circulation system for mud-water shield including the pipeline extension device. Background technique [0002] At present, during the propulsion process of the mud circulation system carried by the mud-water balance roadheader, it is necessary to extend the mud pipeline behind the trolley. The existing technology basically uses a hose or a telescopic sleeve to temporarily Extend the pipeline, disconnect the pipeline when the segments are assembled, retract the temporary pipeline extension measures and hoist and splice a new section of hard pipe to fully extend the mud pipeline. [0003] But this will temporarily interrupt the flow of the medium in the mud pipeline for several hours, and some of the mud that has not been cleaned will be discharged or leaked in the tunnel. In the new design, the sewage...

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Problems solved by technology

[0004] In view of this, the first object of the present invention is to provide a pipeline extension device to solve the problem of disconnecting the pipeline when extending the mud pipeline, causing a lot of inconvenience in construction and polluting the construction environment, and additionally draining the overflowing mud, etc. The problem of multiple processes, the second object of the present invention is to provide a mud circulation system for mud-water shields that includes the above-mentioned pipeline extension equipment

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