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Method for determining free water weight in iron ore

A determination method, iron ore technology, applied in the direction of specific gravity measurement, measuring device, weighing by removing certain components, etc., to achieve the effect of low operating cost, simple steps, and easy equipment maintenance

Inactive Publication Date: 2013-10-02
CHEM MINERALS & METALLIC MATERIALS INSPECTION CENT OF TIANJIN ENTRY EXIT INSPECTION & QUARANTINE BUREAU +1
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  • Abstract
  • Description
  • Claims
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At present, there is no report of this kind of technology in the domestic literature

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  • Method for determining free water weight in iron ore
  • Method for determining free water weight in iron ore
  • Method for determining free water weight in iron ore

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Embodiment Construction

[0043] In order to understand the present invention more clearly, describe the present invention in detail in conjunction with accompanying drawing and embodiment:

[0044] Such as Figure 1 to Figure 3As shown, the drainage pipeline 1, sampling pipeline 2, three-way ball valve 3, and butterfly valve 4 of the open water pipeline sampling device are connected by flanges, the drainage pipeline 1 is installed perpendicular to the ground, and the sampling pipeline 2 is divided into an upper pipe 21 and a lower pipe. 22, the upper pipe 21 and the lower pipe 22 of the sampling pipeline 2 are installed horizontally on the ground, the three-way ball valve 3 is installed between the drainage pipeline 1 and the upper pipe 21 of the sampling pipeline 2, and the butterfly valve 4 is installed on the sampling pipeline 2 On the lower pipe 22 of the lower pipe, the sampling port 5 is located at the nozzle end of the upper pipe 21 of the sampling pipeline 2, and the bottom of the water st...

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Abstract

The invention relates to a method for determining free water weight in iron ore. The method comprises the following steps of: measuring the volume V of free water discharged from a cabin by the adoption of a flow meter, and collecting a free water sample by adopting a free water pipeline sampling device in a free water discharging process; measuring the flow amount of the free water by arranging an electromagnetic flow meter, which has a temperature compensation function and is capable of determining turbid liquid, at an inlet position of a water discharge pipeline; realizing the switching between a water discharging state and a sampling state through a three-way ball valve and a butterfly valve; carrying out linkage between a driven shaft and a crank shaft which are fixedly arranged on a sampling barrel support through a gear meshing way; further controlling a sampling barrel to collect a plurality of free water samples from a sampling opening within the required time, conveying the free water samples to a laboratory to carry out the measurement of density rou of the free water samples and the weight percentage P of ore particles after being fully and uniformly mixed, and then calculating the weight F of the free water in the cabin; and accurately obtaining the weight of the free water under the condition of continual free water discharging. The method for determining the free water weight in the iron ore, disclosed by the invention, has the advantages of being simple in step, easy in device maintenance, low in operating cost, low in labor intensity, and convenient in promotion and application.

Description

technical field [0001] The invention relates to a method for inspecting import and export commodities, in particular to a method for measuring the weight of open water in iron ore. In the process of discharging open water in the cabin, using this method can eliminate the need for boarding and intermittent discharge of open water. The weight of the open water in the iron ore can be accurately obtained only by using the flow meter and the pipeline sampling device. Background technique [0002] At present, in the import and export commodity inspection project, the detection of the weight of the open water in the cabin is a difficult problem. When the cargo ship of bulk mineral products is unloading at the port, open water often appears. The source is as follows: when loading the goods, it needs to be sprayed due to environmental protection, or when it rains, the goods contain too much water. Due to the swaying of the ship's hull during sea transportation, some of the water...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/04G01N9/04G01N9/36G01N1/20
Inventor 魏红兵谷松海臧世阳刘青山王兆瑞安鹏升
Owner CHEM MINERALS & METALLIC MATERIALS INSPECTION CENT OF TIANJIN ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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