Device and method for high-alkalinity ore pulp long-distance pipeline delivery
A long-distance transportation and pipeline transportation technology, applied in the direction of furnace, lining support, lighting and heating equipment, etc., can solve the problems of difficult balance of water volume, large water consumption, complicated process, etc., and achieve reduced environmental protection, reduced investment and operation cost, effect of design science
Inactive Publication Date: 2009-10-14
GUIZHOU BRANCH CHINA ALUMINUM IND
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Problems solved by technology
This technology needs to consume a large amount of new water, and it is necessary to establish a corresponding pulp dehydration process to separate the pulp filter cake from the water used to transport the pulp. At the same time, it is necessary to take corresponding water treatment measures for the filtered filtrate. This technology must have corresponding pulp dehydration and Water treatment process, the process is relatively complicated, the water consumption is large, and the balance of water volume is also a problem
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Embodiment
[0012] Embodiment: The lye tank 1 of the alumina factory is connected to the long-distance conveying pipeline, and the long-distance conveying pipeline is connected to the mine raw material mill 2, and the raw material mill 2 is connected to the mine pulp tank 3 through the pipeline, and the mine pulp tank 3 is connected through the long-distance conveying pipeline Slurry tank 4 of alumina plant.
[0013] The pressure at the outlet of the pipeline pump in the mine is 7000 kPa, the distance to transport the slurry is 90 kilometers, and the height difference between the mine and the alumina plant is 66m.
[0014] In the transportation method of the present invention, pipelines are used to transport the high-concentration lye in the alumina production process from the lye tank 1 to the mine through a long-distance transmission pipeline, and the bauxite and the transported high-concentration lye are added to the raw materials in proportion In the grinding 2 process, the aluminum p...
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The invention discloses a device and a method for high-alkalinity ore pulp long-distance pipeline delivery. A lye tank (1) of an alumina plant is connected with a long-distance delivery pipeline, the long-distance delivery pipeline is connected with a mine raw material grinding mill (2), the mine raw material grinding mill (2) is connected with a mine ore pulp tank (3) through a pipeline, and the mine ore pulp tank (3) is connected with an ore pulp tank (4) of the alumina plant through the long-distance delivery pipeline. The invention has simple structure and scientific design, greatly reduces the investment and the operation cost and adopts high-concentration lye to deliver the ore pulp without consuming fresh water, thereby being beneficial to the environment protection and reducing the water pollution.
Description
technical field [0001] The invention relates to an ore slurry conveying device and method, in particular to an ore pulp long-distance pipeline conveying device and method. Background technique [0002] With the rapid development of the national economy, the demand for alumina is also increasing day by day. According to Shihua Finance News: my country's alumina output from January to December 2007 was 19,456,549 tons, an increase of 42.02% year-on-year, and the annual consumption of bauxite was also More than 42 million tons. In the actual production process, the alumina plant and the mine are usually far away, dozens of kilometers or even hundreds of kilometers, so the bauxite needs to be transported to the alumina plant over a long distance. At present, the long-distance transportation schemes of bauxite include railway, highway, waterway and pipeline transportation. When the mine is located in a mountainous area with inconvenient transportation and is far away from railwa...
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IPC IPC(8): F27D1/08F27D1/14
Inventor 柳健康刘建钢王奎龚智远伍良渝王文志刘德宽周江筑刘昌洌路增进严天志
Owner GUIZHOU BRANCH CHINA ALUMINUM IND