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Gas injection type slurry pipe-line transportation method and device

A technology for mud pipelines and gas supply devices, applied in pipeline systems, gas/liquid distribution and storage, mechanical equipment, etc., can solve problems such as easy blockage of pipelines and sediment deposition, and achieve enhanced sand transport capacity and sand carrying capacity. , the effect of increasing the flow rate along the way

Inactive Publication Date: 2008-09-24
TONGJI UNIV
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Problems solved by technology

[0005] Aiming at the urgent need to solve the problems of sediment deposition and easy pipeline blockage in long-distance high-concentration mud pipeline transportation, the present invention adds a device for injecting gas into the fluid in the pipe on the basis of the traditional mud pipeline transportation method, providing a A new method that can reduce the long-distance transportation resistance of mud and sediment deposition during transportation, and improve the efficiency of sediment transportation

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  • Gas injection type slurry pipe-line transportation method and device
  • Gas injection type slurry pipe-line transportation method and device
  • Gas injection type slurry pipe-line transportation method and device

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Embodiment Construction

[0018] The air-injection type mud pipeline conveying device of the present invention is composed of two parts, i.e. the gas injection device and the traditional mud pipeline conveying device, the key of which is the refitting of the conveying pipeline. Such as Figure 1~3 As shown, there are: 1. Sediment conveying pipe; 2. Sediment fluid; 3. Air supply chamber; 4. Partition;

[0019] figure 1 The operating principle of the gas injection mud pipeline method is illustrated. For the traditional mud pipeline transportation method, the farther away from the mud pump, the water flow will gradually become stable, and the turbulence intensity will gradually decrease, and the relatively coarse-grained sediment will gradually drop to the bottom fluid. It moves in an approximate state of mass transfer, and even temporarily settles down, sometimes moving forward slightly. The higher the concentration of coarse-grained sediment at the bottom of the fluid in the pipe, the greater the fri...

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Abstract

A gas injection type of slurry pipeline transportation method relates to a novel method which injects the gas into the sediment fluid to reduce the transportation resistance of the slurry and the sedimentation of the sediment and improve the transportation efficiency of the slurry. The transportation method comprises that the transportation pipelines which contain the gas injection channels are prepared; the gas injection type of transportation pipelines are connected according to the traditional pipeline connection method; a gas supply device is connected with the gas injection channels; during the transportation process of the slurry, the gas is injected into the sediment fluid continuously; the gas supply pressure is adjusted until the best sediment transportation efficiency is attained; after the transportation of the sediment, the gas continues to be injected into the transportation pipeline until the cleaning of the pipeline is completed. The invention has simple implementation technology and low sediment transportation cost. The invention can not only reduce the sedimentation of coarse sediment in the transportation pipeline, improve the transportation efficiency of the sediment and produce great transportation effect under the working conditions of wide sediment gradation and coarse grain size, but also improve the transportation distance and slurry concentration, reduce the post-processing dehydration working load of the dredging and reclamation and decrease the environmental pollution.

Description

technical field [0001] The invention relates to a mud pipeline transportation technology, in particular to a gas injection device and method for reducing mud transportation resistance and coarse sediment deposition, and belongs to the technical field of water conservancy engineering. Background technique [0002] Bank collapses, landslides, and floods carrying a large amount of sediment often reduce the storage capacity of reservoirs and lakes, and the river bed is raised by silting, affecting flood control, causing floods, and deteriorating shipping conditions. Therefore, there is an urgent need for efficient sediment transportation technology. Sediment is transported to a suitable place, and transported to the place as much as possible at one time to prevent secondary pollution of water sources and the environment. At the same time, due to the vigorous development of the economy and infrastructure of cities along the coast and along the river, as well as further urban deve...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D1/12
Inventor 谢立全郑永来
Owner TONGJI UNIV
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