Airflow feeding device and process for powder and granular material used in vacuum furnace smelting
A feeding device and vacuum furnace technology, which is applied in the field of powder and granular material airflow feeding device for vacuum furnace smelting and powder and granular material feeding device for vacuum furnace smelting. problems, to achieve the effect of improving melting efficiency, convenient operation and simple structure
Inactive Publication Date: 2019-01-22
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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Problems solved by technology
[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a powder and granular material airflow feeding device and process for smelting in a vacuum furnace, so as to overcome the disadvantage that the auxiliary material block is too large when adding auxiliary materials to the vacuum furnace. The material melts quickly, or when the density is lower than that of the melt in the furnace when the powder is added, the added auxiliary materials will float on the surface of the melt, which is not conducive to its rapid melting.
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[0031] Comply with the above technical solutions, such as figure 1 As shown, the present embodiment provides a kind of powder and granular material airflow feeding device for vacuum furnace smelting, including a furnace cover 1 and a furnace body 2, the furnace cover 1 and the upper opening of the furnace body 2 are detachably sealed and connected, and also include a powder A pellet feeding mechanism 3, the powder pellet feeding mechanism 3 is in sealed communication with the furnace body 2;
[0032] The furnace body 2 includes a furnace wall 2-1 and a furnace chamber 2-2, the furnace wall 2-1 is connected with a vacuum tube 2-1-1, and the vacuum tube 2-1-1 is provided with a vacuum valve 2-1-2, a crucible 4 is fixed below the interior of the furnace cavity 2-2, the outer wall of the crucible 4 is wrapped with a layer of furnace lining 5, the outer wall of the furnace lining 5 is provided with an induction coil 6, and the bottom of the furnace body 2 is equipped with a furnace...
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The invention provides a powder and granular material airflow feeding device and process for vacuum furnace smelting, wherein the powder and granular material airflow feeding device includes a vacuum melting furnace, a powder and granular material feeding mechanism, and a powder and granular material feeding mechanism. The upper opening of the pellet silo is provided with a top cover, and is connected to an air storage tank through a ventilation pipe, and the lower part is connected to an upper feeding pipe, and the lower end of the upper feeding pipe is sealed and connected to a hard tube for feeding, and the hard tube for feeding passes through the vacuum The furnace wall stretches into the furnace body, and the lower end of the material guide hard pipe is sealed and connected with a lower feed pipe through a material guide hose, and the lower feed pipe can rotate. The process of air-flow feeding of powder and pellets for vacuum furnace smelting includes adding raw materials for smelting, placing powder and pellets and adding powder and pellets. The invention can realize feeding without opening the furnace cover under the condition of vacuum or protective gas, and the added powder and pellets can be melted quickly, especially low-density powder and pellets can be quickly added to the melt in the vacuum furnace through the powder and pellet feeding mechanism The interior of the machine greatly improves the melting efficiency of powder and pellets.
Description
technical field [0001] The invention belongs to the technical field of vacuum furnace smelting, and relates to a powder and granular material feeding device for vacuum furnace smelting, in particular to a powder and granular material airflow feeding device and process for vacuum furnace smelting. Background technique [0002] Vacuum / air-filled melting furnace is a melting equipment for smelting various oxidizable metals, precision alloys and other metals under vacuum or inflated conditions. The feeding mechanism is an essential part of various smelting furnaces. At the same time, the slag removal process in the smelting process requires the addition of additives, and it is also necessary to realize feeding without opening the furnace lid under vacuum or protective gas conditions. The feeding device of vacuum melting furnace or gas-filled melting furnace is much more complicated than that of ordinary melting furnace, because the feeding of vacuum melting furnace or gas-filled...
Claims
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IPC IPC(8): C22B9/04F27D3/18
CPCC22B9/04F27D3/18F27D2003/185Y02P10/25
Inventor 王发展赵申区达铨
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY