Circulation type atomized metal powder preparation method and device
A technology for the preparation of atomized metal and powder, which is applied in the field of circulating atomized metal powder preparation, can solve the problems of unfavorable large-scale production, difficult maintenance, complicated equipment, etc., and achieve the advantages of large-scale production, good energy efficiency and simple equipment. Effect
Active Publication Date: 2011-05-04
HAIAN YINGQIU POWDER METALLURGY CO LTD
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Problems solved by technology
[0005] However, in their design, it is necessary to restore the used gas to a very pure state, purify and remove all impurities such as water, oxygen, carbon dioxide, solid particles, etc., and then dry and compress, so the equipment used is complicated. Difficult to maintain, large scale, not conducive to mass production, poor energy efficiency ratio
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[0025] A preferred embodiment of the present invention is described as follows in conjunction with the accompanying drawings: The preparation method of the circulating atomized metal powder is: in the main flow, use an inert gas to atomize the metal flow, and after atomization, the large particle metal powder settles on the first In the collection box, the used gas containing particles enters the recirculation flow path. In the recirculation flow path, the used gas passes through the expansion separation chamber and the centrifugal particle separation chamber for partial particle separation, and the medium particles The metal powder settles in the second collection box, and the separated gas containing fine solid particles is regulated by the temperature control part and detected by the gas quality inspection and control instrument. When the index exceeds the standard, switch the gas path so that the gas enters the waste gas treatment flow path for treatment and exhaust.
[00...
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The invention provides a preparation method of circulating atomization metal powder and a device thereof. Inert gas is utilized for atomizing metal liquid in a main fluid passage, the atomized metal powder with big particles is settled in a first collecting box, and the used gas containing the particles enters a recycling fluid passage; in the recycling fluid passage, after the used gas is treated with insufficient particle separation by an expansion separation cavity and a centrifugal particle separation chamber, metal powder with medium particles is settled in a second collecting box; and the separated gas containing fine solid particles is treated with temperature adjustment by a temperature control part and detected by a gas quality detection control instrument, when the gas indexes are detected to be normal, the gas enters the main fluid passage to take part in atomization, and when the gas indexes are detected to exceed the limits, a gas circuit is switched to lead the waste gasto enter a waste gas treatment fluid passage for treatment and exhaust. The invention has good atomization effect, and the internal recycle of fine powder and gas also reduces the metal dust pollution and the difficulty of waste gas treatment.
Description
Technical field: [0001] The invention relates to a method and device for preparing circulating atomized metal powder. It proposes to use the atomized gas cyclically, and utilize the heat of the circulating gas and the fine solid particles in it to enhance the atomization effect and reduce pollution. It is mainly used in the powder metallurgy industry and spray forming technology. Background technique: [0002] Powder metallurgy and spray forming technology have become an important pillar and a very promising industry in the electromechanical manufacturing and processing industry. Powder metallurgy materials are favored by the metal product manufacturing industry due to the advantages of energy saving, material saving, low cost of large-scale production, and no need for machining. Metal injection molding (MIM), thermal spraying (thermalspraying, TS), metal rapid prototyping (metal rapid prototyping, MRP), surface mount technology (surface mount technology, SMT) and other tec...
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IPC IPC(8): B22F9/08
Inventor 王志亮
Owner HAIAN YINGQIU POWDER METALLURGY CO LTD