A long-distance on-line slurry pipeline delivery system and delivery switching method

Abstract

The invention provides a slurry pipeline conveying system and conveying switching method for long-distance online combined pipelines. The technical scheme is as follows: a slurry pipeline and a water returning pipeline of a mine lot are connected on a slurry conveying main pipeline of the slurry pipeline system, and innovative combined valves are switched for conveying, so that existing slurry conveying pipelines are effectively used to realize the conveying of mineral resources of new mine lots along the main pipeline, and the mining slurry conveying efficiency of the pipeline system is greatly improved; in addition, the water returning pipeline is created, so that water resources are used repeatedly, not only is the problem that the new mine lots are lack of water solved, but also the cost that cleaning water is conveyed to a terminal station by the main pipeline is greatly lowered, the use ratio of the slurry pipeline is improved to the uttermost, the water resources are effectively saved, and the slurry pipeline conveying system and conveying switching method are enabled to have important popularizing and utilizing value.

Description

technical field [0001] The invention relates to the technical field of slurry pipeline transportation, in particular to a long-distance online parallel pipeline slurry pipeline transportation system and a slurry transportation switching method. Background technique [0002] With the rapid economic growth in our country, especially the sustained and stable development of metallurgy, petrochemical, petroleum, chemical fertilizer and other industries in recent years, with the increase in energy prices, transportation costs have become higher and higher, and the use of hydraulic pipelines to transport solid materials, and other Compared with transportation (such as railways and highways), it has the following advantages: short transportation distance, adaptable to terrain and available height difference potential energy, does not occupy or occupy less land, does not pollute the environment and is not disturbed by external conditions, can achieve continuous operation, reliable tec...

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Problems solved by technology

However, the biggest defect of the slurry pipeline transportation system is that the investment cost is high. In practice, since the mineral resources are distributed in many different regions, to effectively utilize all these mineral resources through pipeline transportation, it is necessary to specialize in each mine. The construction of a pipeline system will greatly increase the cost of mineral resource transportation, especially for some small mines, the laying of long-distance slurry pipelines will greatly reduce the overall cost performance of pipeline transportation, such as the Dahongshan pipeline in Yunnan, which was completed and put into operation in 2006. The 171-kilometer-long pipeline is transported to the Yuxi dehydration station of Kunming Iron and Steel Company. With the continuous development of the company, a new small mine was mined in Yuhezhai, 20 kilometers away from the original pipeline. Since the output of the newly mined small mine is not large, if the new mine is built A pipeline from Yuhezhai Small Mine to Yuxi Dehydration Station of Kunming Iron and Steel Company is too expensive, and the pipeline mileage reaches 90 kilometers. If the original ready-made pipeline can be effectively used, 70 kilometers of pipeline construction can be saved. It is enough to build a new 20-kilometer pipeline from the mine to the existing pipeline. Therefore, how to make the various mine sites passing through the long-distance slurry pipeline can effectively use the long-distance slurry pipeline to transport mineral resources, which is very important for reducing slurry pipeline transportation. It is of great significance to reduce the cost and improve the transportation efficiency of slurry pipelines, but the existing technology does not provide such a scheme to combine the resources of various mine sites near long-distance pipelines

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