Surface film resistance reduction method and viscoplastic material pipe-line transportation technology

A viscoplastic material and pipeline transportation technology, which is applied in the field of pipeline transportation of viscoplastic materials

Inactive Publication Date: 2008-08-06
昆仑检验认证有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It only focuses on the problem of reducing wall friction and overcoming the viscosity between the soft sticky material and the inner wall of the pi

Method used

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  • Surface film resistance reduction method and viscoplastic material pipe-line transportation technology
  • Surface film resistance reduction method and viscoplastic material pipe-line transportation technology
  • Surface film resistance reduction method and viscoplastic material pipe-line transportation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1 Hydraulic type soft clay coating conveying method. Soft clay refers to the saturated soil that is deposited in still water or slow flowing water environment, formed by biochemical action, contains organic matter, has a natural water content greater than the liquid limit, and a natural void ratio greater than 1.0. Soft clay is neither liquid nor solid, and belongs to the category of Binghamian body, and has the characteristics of weakness, viscosity, thixotropy, rheology, permeability, and compressibility. The non-Newtonian fluid characteristics of this soft and viscous material and its reconsolidation characteristics under disturbance have great viscous resistance. With regard to the prior art and equipment of transporting earth, if the mud concentration is greater than 30%, it cannot be transported; if the powdery dry soil is slightly wet, it cannot be transported. However, the natural state of a large amount of soil in the project is in the range that is...

Embodiment 2

[0037] Embodiment 2 Double-pipeline dredger. Including pusher, material inlet, material delivery pipeline, conversion valve, surface film generator, material distribution device, intelligent control system, etc., such as Figure 5 Figure 6 Shown, be provided with crane (39), grab bucket (40) and hopper (42) on hull. Crane (39) grabs earth (41) and puts into hopper (42) along the side of the ship, and earth (41) is pressed into main conveying pipeline (46) by hydraulic propulsion device. Main conveying pipeline (46) adorns a booster (45) every certain distance. Main delivery pipeline (46), cable and auxiliary pipeline (48) are laid in parallel, are fixed on the reinforcing bar (51) of buoyant body (44) with hugging (52) screw (49). Whether booster (45) communicates with auxiliary pipeline (48) is controlled by electromagnetic valve (50). When the resistance of the soil (41) traveling in the main conveying pipeline (46) is large, the solenoid valve (50) is opened, and the h...

Embodiment 3

[0039] Embodiment 3 Concrete delivery. When transporting concrete, only the membrane device is added on the basis of the original concrete delivery pump. The surface film liquid adopts defoaming agent and its ratio is: calcium lignosulfonate 0.3% ~ 1.2%, polyoxyethylene ether 0.01% ~ 0.05%, cyclohexanol 0.01% ~ 0.05%, water is added to 1%. Hundred.

[0040] When the surface film liquid is sprayed on the concrete and the inner wall of the pipe, the cement particles are negatively charged due to the adsorption of anions, which makes the water around the cement particles polarized, and the repulsion of the same-sex ions prevents the adsorption and diffusion of the cement particles and inhibits the concrete. Therefore, the slurry becomes thinner, the viscous resistance between the concrete and the inner wall of the pipe decreases, and the fluidity of the concrete increases. Through comparative experiments, the frictional resistance between the concrete and the road wall is signif...

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Abstract

The invention relates to a transportation technique of non-Newtonian fluid-Pingham body, in particular to a pipeline conveying method of viscosity plastic material, which comprises a processing method of inner wall of pipeline, a method of forming capsules of the material, a formulating method of additives and the like. A surface film drag reduction method of bionic fish body surface film and intestinal membrane is employed to design a pipeline for reducing wall friction, a surface film is arranged between the material and the pipeline to enable the inner friction of the material to be larger than that of the pipe wall, and to enable the viscosity plastic material with high concentration, high viscosity and low strength to be transported under the premise of low energy consumption, and the difficult problem soft and sticky material for long-distance pipeline transportation is resolved. The transportation technique of non-Newtonian fluid-Pingham body has the advantages of large transport capacity, long transport distance, low consumption and wide market, and is adaptable to a plurality of aspects, such as petroleum, chemical industry, mining, environmental protection, construction and the like.

Description

technical field [0001] The present invention relates to non-bovine flow-Pingham body (Pingham) delivery technology. In particular, it is a pipeline transportation method for viscoplastic materials. Background technique [0002] In many aspects such as petroleum, chemical industry, mining, environmental protection and construction, the transportation of viscoplastic materials is involved. [0003] In the construction of coastal engineering and island engineering, it is often required to take soil hundreds of meters or even thousands of meters away from the embankment to carry out the air-tightening of the earthwork of the embankment. Due to the development of sea reclamation, there are few high tidal flats left, and the coast has gradually extended to low and medium tidal flats. The middle and low tidal flats are deposited with deep soft clay layers. This type of soil has high viscosity, low strength, and high water content. If you can't go down, the water machinery can't c...

Claims

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Application Information

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IPC IPC(8): F17D1/08
Inventor 陶松垒陶钧炳白建辉严芳陈智源姚银萍
Owner 昆仑检验认证有限公司
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