Method for laying mine slurry pipeline in long and narrow section

A pipeline, narrow and long technology, which is applied in the field of laying slurry pipelines in narrow and long areas, can solve the problems of long construction period and achieve the effects of large laying distance, cost reduction and shortened construction period

Active Publication Date: 2011-08-17
CHINA 19TH METALLURGICAL CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the shortcoming of the existing pipeline laying method with a long construction period when operating in a long and narrow section, the techni

Method used

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  • Method for laying mine slurry pipeline in long and narrow section
  • Method for laying mine slurry pipeline in long and narrow section
  • Method for laying mine slurry pipeline in long and narrow section

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Embodiment Construction

[0016] The present invention is further described below.

[0017] Such as figure 1 , figure 2 , image 3 with Figure 4 As shown, the laying method of the slurry pipeline of the present invention in the narrow and long section is to use the junction of the straight pipe and the elbow as the dividing point to determine the length of the straight pipe section 1, and complete the laying between two adjacent elbows according to the following steps. The laying of the straight pipe section 1,

[0018] The first step, ditching and pipe welding: first complete the ditching operation of the straight pipe section 1, and then lay the track 3 in the pipe ditch 4, install the trolley 2 with the arc-shaped pipe seat 20 on the track 3, and the arc-shaped pipe The arc of the seat 20 matches the outer circle of the pipe, and the arc-shaped pipe seat 20 should be equipped with a cushion 21 to avoid hard contact, thereby preventing the coating layer on the pipe 100 from being damaged. Put a...

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Abstract

The invention discloses a method for laying a mine slurry pipeline in a long and narrow section, which can shorten a construction period. In the method, the length of a corresponding straight pipe section is determined by taking positions, where two bent pipes are connected in front of and behind the same straight pipe section, as demarcation points. The method comprises the following steps of: 1, grooving, laying a track in a pipe groove, arranging a trolley with a circular-arc pipe seat on the track, matching the circular arc of the circular-arc pipe seat with the outer circle of a pipeline, arranging a cushion on the circular-arc pipe seat and pairwise welding single pipes into a straight pipe section of a required length in a wide region; 2, pulling the entire straight pipe section into the pipe groove by using traction equipment and the trolley, supporting the straight pipe section with a supporting frame, removing the trolley, the traction equipment and the track and putting the straight pipe section down; and 3, connecting the straight pipe section with the bent pipe at the two ends and refilling the pipe groove. The method has a simple process, and is easy to operate; the one-step laying distance is large, the construction period is shortened, and the cost is lowered; and the method has high safety, and is particularly suitable for large-caliber long-distance mine slurry pipelines.

Description

technical field [0001] The invention relates to a method for laying a pipeline, in particular to a method for laying a slurry pipeline in a long and narrow section. Background technique [0002] For large-diameter slurry pipelines with a diameter of more than 600mm, the laying operation usually adopts the staggered and parallel operation mode of "ditching and laying pipelines" and "butt welding of pipeline groups". Taking the laying position corresponding to a single pipe as a pipe station, the operation sequence is: first lay the pipe, then open the ditch, then perform butt welding of the single pipe to form a pipe section, and then backfill the ditch under the pipe section,... Work in such a staggered manner. [0003] When laying pipelines in open areas, the construction site is wide. Whether a single pipe is a straight pipe or a bent pipe, small lifting equipment can be used to directly lift a single pipe for pipe laying. Ditching equipment, lifting equipment and Weldin...

Claims

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Application Information

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IPC IPC(8): F16L1/036
Inventor 董荔苇
Owner CHINA 19TH METALLURGICAL CORP
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