Unlock instant, AI-driven research and patent intelligence for your innovation.

Micropressure continuous magnesium smelting reduction furnace system utilizing blowing of inert gas and internal and external combined heating

An inert gas, reducing furnace technology, applied in the metallurgical field, can solve the problems of low life expectancy, large energy loss and small production capacity of the reduction tank, and achieve the effects of long maintenance and replacement cycle, small production consumption, and small internal and external pressure difference.

Inactive Publication Date: 2019-09-24
陕西南洋镁创科技有限公司 +1
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process has the advantages of simple process flow, low investment, short construction period, and low technical difficulty. However, with the development of world science and technology and smelting technology, the shortcomings of the Pidgeon method are also obvious, such as: backward production technology and long reduction period. , small production capacity, unstable product quality, not suitable for large-scale production, low comprehensive utilization value of reducing slag, low life of reducing tank, discontinuous production process, large energy loss, high production cost, serious environmental pollution, poor working environment for production workers, Problems such as high labor intensity have not been effectively controlled and resolved for a long time. At present, Pidgeon method magnesium smelting has become a typical high energy consumption and high pollution industry. , Environmental protection discharge and access system

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Micropressure continuous magnesium smelting reduction furnace system utilizing blowing of inert gas and internal and external combined heating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1, such as figure 1 As shown in the figure, the present invention is a micro-pressure continuous magnesium smelting reduction furnace system using inert gas blowing and internal and external heating, including a reduction furnace micro-pressure automatic continuous magnesium smelting system 1, an inert gas circulation system 2 and an automatic slag discharge system 3; Reduction furnace micro-pressure automatic continuous magnesium smelting system 1 includes input fuel heater 11, burner 12, reduction tank 13, reduction furnace 14, inert gas heater 15, air preheater 16 and blower 17; inert gas circulation system 2 Including an inert gas preheater 21, a magnesium purification device 22, a magnesium crystallizer 23, an inert gas circulating fan 24 and a supplementary inert gas storage tank 25 connected in sequence through a pipeline; a fuel heater 11 and a burner are provided on the reduction furnace 14 12; the high-temperature mixed gas outlet of the reduction furna...

Embodiment 2

[0064] In Embodiment 2, the inert gas heater 15 is connected with a pressure relief emptying system 5 through a pipeline; the pressure relief emptying system 5 is an automatic pressure relief valve. The scope of the system: from the inert gas pipeline at the outlet of the inert gas heater 15 to the pressure relief valve. Main functions: This system is mainly used to discharge the air in the inert gas circulation system, and at the same time, relieve the pressure when the device pressure is high or in an accident situation, to ensure the safe and reliable operation of the device. The main equipment of the system: explosion-proof door, automatic pressure relief valve and pressure relief discharge pipeline, etc. The main process flow: inert gas coming from 15 outlet of inert gas heater → automatic pressure relief valve (explosion-proof door) → outdoor discharge port.

Embodiment 3

[0065] In Embodiment 3, a waste heat recovery device 18 is provided between the inert gas heater 15 and the air preheater 16. The heat-medium cooling section inlet and the heat-medium cooling section outlet are provided on the recovery furnace exhaust heat recovery device. The outlet side of the air preheater 16 is provided with a reduction furnace fume exhaust system 6; the reduction furnace fume exhaust system 6 includes a reduction furnace exhaust dust collector 61, a reduction furnace exhaust fan 62, and a reduction furnace exhaust gas, which are connected in sequence by pipes Purification device 63 and chimney 64.

[0066] The smoke exhaust system of the reduction furnace 14 has a system scope: from the reduction furnace flue gas outlet to the chimney exit. Main function: This system mainly removes dust from the exhaust gas of the reduction furnace and removes SO in the flue gas 2 , NO x And other pollutants, etc., and smoothly meet the emission standards through the chimne...

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

No PUM Login to View More

Abstract

The invention discloses a micropressure continuous magnesium smelting reduction furnace system utilizing blowing of inert gas and internal and external combined heating. The micropressure continuous magnesium smelting reduction furnace system further comprises a reduction furnace micropressure automatic continuous magnesium smelting system, an inert gas circulating system and an automatic slag discharging system. According to the system, the combined heating manner of indirect heating of an external heat source and direct heating of high-temperature inert gas in a reduction tank is adopted, the high-temperature inert gas is blown into the magnesium smelting reduction tank, blowing to the surface of a magnesium smelting raw material and direct heat convection are carried out through the inert gas, and thus efficient rapid continuous production of reduced magnesium on the micropressure and high-temperature condition can be achieved. The consumption amount of production of a reduction furnace is small, time for magnesium smelting is short, the production efficiency is high, automatic continuous production is achieved, the labor cost is saved, energy is saved, consumption is reduced, and the system is environmentally friendly. The single-can magnesium production amount is large, enlargement and large scale are achieved easily, and the magnesium reduction rate is high. The reduction slag can be totally utilized comprehensively, the quality of the reduced magnesium is high, the refining link can be omitted, and the magnesium smelting comprehensive cost is low.

Description

Technical field [0001] The invention relates to the technical field of metallurgy, in particular to a micro-pressure continuous magnesium smelting reduction furnace system utilizing inert gas blowing and internal and external heating. Background technique [0002] Magnesium and magnesium alloys have high specific strength, high specific stiffness, good vibration damping, good heat dissipation, strong electromagnetic shielding and radiation resistance, stable dimensions, good casting properties, easy cutting processing, easy recycling, fatigue resistance, good plasticity, etc. A series of advantages are the third type of metal structural materials developed after steel and aluminum alloys. They have extremely important application value and broad application prospects in the fields of automobiles, electronics, electrical appliances, aerospace, aviation and national defense and military industries. The development and application of the most eye-catching green metal materials in th...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22B26/22C22B5/02
CPCC22B5/02C22B26/22
Inventor 蒋聪敏单智伟杨炜郑军刘飞杨博
Owner 陕西南洋镁创科技有限公司