Scale-up method of jet flotation machine for coal with submerged aerated stirring device
A stirring device and flotation machine technology, which is applied in flotation, solid separation, etc., can solve the problems of incomplete research on microstructure, and achieve the effect of improving cost performance
Active Publication Date: 2016-07-06
唐山国华科技国际工程有限公司
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[0012] In view of the complexity of the flotation process and the incomplete research on its microstructure, it is not possible to really establish a true
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[0053] Below in conjunction with accompanying drawing and concrete test data, the present invention is described further.
[0054] The amplifying method of the jet flotation machine for coal with the submerged aerated stirring device disclosed in the present embodiment, the method is that the volume is 6m 3The flotation tank 16 is a platform, and the structural parameters of the main components of the inflatable stirring device are tested, and then various geometric similarity coefficients are obtained, and the geometric similarity coefficient is used as the amplification factor; through industrial paired comparison tests, the circulation of the jet flotation machine is optimized. The amount of circulation per unit volume is equal to the similarity of fluid motion and dynamic phenomena; the assembly drawing of the flotation machine is determined according to the nozzle arrangement; vertical partitions are set in the feeding box, and specific structural parameters are determined...
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A method of enlarging a jet flotation machine for coal with a submerged stirring device, the method is based on a volume of 6m 3 The flotation cell is used as a platform, and the structural parameters of the main components of the inflatable stirring device are obtained from the test, and then three geometric similarity amplification factors are obtained; through industrial paired comparison tests, the circulation volume of the jet flotation machine is optimized, and the unit volume circulation The quantity is equal as the similar standard of fluid motion and dynamic phenomena, and then the diameter of the nozzle outlet is determined; the assembly scheme of the jet flotation machine is determined according to the arrangement of the nozzles; vertical partitions are set in the feeding box, and its specific structural parameters are determined. The invention optimizes the circulation volume of the jet flotation machine and determines the specific size of the jet flotation machine for coal through structural parameters of main components, three geometric similarity coefficients, and industrial paired comparison tests. This method is scientific and rigorous, which further improves the cost performance of large-scale jet flotation machines.
Description
technical field [0001] The invention relates to an enlarging method of a jet flotation machine for coal with a submerged air-filled stirring device. Background technique [0002] As far as the current technical level is concerned, the flotation machine is still the most effective equipment for separating coal slime (<0.25mm). The FJCA briquette jet flotation machine with China's independent intellectual property rights (invention patent number: ZL200820077210.0) has the following advantages: good selectivity, large processing capacity, simple structure, long service life, low flotation agent and power consumption Province etc. However, only five specifications of FJCA4, FJCA6, FJCA8, FJCA12, FJCA16, and FJCA20 have been put into production since 2008 (4, 6, 8, 12, 16, and 20 each represent the single-cell volume of the flotation machine, m 3 ). Because the flotation machine is too small, it is not suitable for production development needs. [0003] my country's coking...
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IPC IPC(8): B03D1/14
Inventor 吴大为闫锐敏王海艳庾朝富郭雅利魏子庆程翔锐丁雪刚
Owner 唐山国华科技国际工程有限公司