Metal hot reduction magnesium-smelting furnace by internal resistance heating and magnesium smelting method thereof
A technology of metal heating and magnesium smelting furnace, which is applied in the field of non-ferrous metal vacuum reduction smelting equipment and its production technology, and can solve the problems of complex connection structure of resistance heating element, inability to separate residues, and difficult condensation of metal magnesium vapor.
Inactive Publication Date: 2009-07-29
冯乃祥
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The disadvantage of this method is that the connection structure of the internal resistance heating element is complicated, and the design of the furnace body structure and the resistance heating element is not conducive to operation.
There is also a kind of "a kind of internal resistance heating silithermal magnesium smelting furnace and its magnesium smelting method" that the inventor applied for earlier. The weak point of this internal resistance heating silithermal magnesium smelting furnace is that the crystallizer is in the furnace At the other end, the metal magnesium vapor generated by the reaction in the furnace is not easy to condense on the crystallizer, but condenses on the inner and upper walls of the reactor.
In addition, the residue generated by the reaction cannot be separated from the unreacted product in time
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0017] As shown in the figure, the furnace body of the magnesium smelting furnace of the present invention is cylindrical, and the furnace has three chambers. One end of the furnace body is a high-temperature vacuum reduction reaction furnace chamber 5, and its upper part is a gaseous metal product crystallization chamber 13. It is a slag receiving chamber 21, and the side wall of the gaseous metal product crystallization chamber 13 top is provided with a reduction furnace vacuum tube 11, and a potassium and sodium trap 16 is arranged in the gaseous metal product crystallization chamber 13, and a furnace is provided at the gaseous metal product crystallization chamber 13 ports. The cover 18 (flange) presses the vacuum gasket II23 to seal. The outer wall of the gaseous metal product crystallization chamber 13 has a crystallization chamber wall cooling water jacket 14, and the inner wall of the gaseous metal product crystallization chamber 13 is provided with a cylindrical crysta...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a metal thermal reduction magnesium smelting furnace and a magnesium smelting method with internal resistance heating, which belong to the technical field of non-ferrous metal vacuum reduction smelting equipment and its production technology. The furnace has three chambers, and one end of the furnace body is a high-temperature vacuum reduction reaction furnace chamber. The upper part is a crystallization chamber for gaseous metal products, and a cylindrical crystallizer is set on the inner wall. The lower part of the crystallization chamber is an ash receiving chamber. The space between the furnace lining and the furnace shell is filled with insulation materials, and vacuumized, and the high-temperature vacuum reduction reaction The furnace chamber has a built-in box, and the box has a built-in metal resistance heating element. Using this furnace to smelt magnesium is carried out under the conditions of 1200-1300°C and system residual pressure of 1-13Pa. The invention is not only suitable for producing metal magnesium by metal thermal reduction method, but also suitable for producing lithium, calcium, strontium and other metals by metal thermal reduction method.
Description
technical field [0001] The invention belongs to a non-ferrous metal vacuum reduction smelting equipment and its production process, in particular to the preparation technology of magnesium, lithium, strontium, calcium and other high vapor pressure metals, which are heated and reduced by ferrosilicon or metal aluminum. Background technique [0002] Alkali metals and alkaline earth metals can be produced by molten salt electrolysis, but some alkali metals and alkaline earth metals with high vapor pressure, such as lithium, strontium, magnesium, calcium, etc., can be produced by silicon, aluminum or their alloys under vacuum conditions. It is obtained by metallothermic reduction method. Among the metallothermal reduction preparation methods of magnesium, the silicothermal or aluminothermic metalthermal reduction principle is most widely used, but the reducing agent is mostly used in the form of ferrosilicon alloy, and the raw material to be reduced is mostly calcined dolomite. ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C22B26/22C22B5/16F27B1/02
Inventor 冯乃祥
Owner 冯乃祥