Super high temperature smelting furnace

A smelting furnace and ultra-high temperature technology, applied in furnaces, crucible furnaces, furnace types, etc., can solve the problems of high manual operation intensity, long smelting time, and large energy consumption, so as to reduce smelting procedures, shorten smelting time, and improve The effect of smelting efficiency

Inactive Publication Date: 2005-03-02
孟安民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, commonly used smelting furnaces that provide higher furnace temperatures, such as electric arc furnaces or plasma furnaces, can generate high temperatures above 3000°C in the furnace, but their high temperature zone is only a small central area in the furnace, mainly relying on radiation and gas flow. The heat is transferred from the central high-temperature area to the surrounding area, so the temperature difference between the central area and the edge area is relatively large, and its smelting time is long, energy consumption is large, and the intensity of manual operation is also large.

Method used

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  • Super high temperature smelting furnace

Examples

Experimental program
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Effect test

example 1

[0007] Example 1: in conjunction with accompanying drawing description, make the main structure furnace body of this furnace, at first will make carbonaceous furnace lining (5), and its size and thickness are also because of depending on volume. For example, to make a carbonaceous furnace lining of about 100 kg, take 40 kg of petroleum coke and 52 kg of pitch coke, mix and pulverize them through a 200-mesh sieve into fine powder, then mix in 8 kg of heated and melted coal tar pitch, and press it into a crucible shape. After roasting and graphitization at 1300°C, the carbon content of petroleum coke, pitch coke and coal tar pitch are all above 90%. When making the smelting furnace, the outer periphery of the carbonaceous furnace lining (5) is wrapped with a thermal insulation lining (6), and the material of the thermal insulation lining (6) is preferably a non-magnetic material resistant to more than 3000° C., such as carbon felt material. In the outer middle section of the hea...

example 2

[0008] Example 2: The main structure and auxiliary parts of the furnace are the same as in Example 1, only the ingredients for the carbonaceous furnace lining: take 47 kg of petroleum coke, 43 kg of pitch coke, and 10 kg of heated and melted coal tar pitch. The requirements for the purity of raw materials and processing technology It is also the same as Example 1.

example 3

[0009] Example 3: Get 55 kilograms of petroleum coke, 39 kilograms of pitch coke, and 6 kilograms of coal tar pitch to make a carbonaceous furnace lining. The requirements for raw material purity and the manufacturing process are the same as in Example 1, and the furnace body and required auxiliary parts are also the same as in Example 1.

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Abstract

The invention relates to a smelting device with super-high furnace temperature. The furnace is consisted of furnace which consists of carbonaceous furnace lining thermal insulation carbonaceous outside and sensor out of thermal insulation carbonaceous and furnace liquid8 outlet in the under part and auxiliary facilities. Carbonaceous furnace lining whose carbon purity is not less than 90%, using petroleum coke, pitch coke and coal-tar pitch as raw material which is grinded, rabbled, formed and fired according to a certain percentage, can be produced of crucible-shaped or cylindrical. The furnace charges electric energy into magnetic energy by the sensor, creating symmetric high temperature zone of higher than 2600deg.C continuously in the middle part, melts many elements with high melting point and smelts many inpermeant furnace charges. The furnace has saved electric energy more than 1 / 4, simplified, reduced smelting time and raising smelting efficiency.

Description

1. Technical field [0001] The invention relates to a smelting device with ultra-high furnace temperature. 2. Technical background [0002] At present, in the production of smelting industry, regardless of blast furnace smelting, converter smelting (including oxygen blowing furnace), electric arc furnace (including submerged arc furnace) and induction furnace (including power frequency, intermediate frequency, high frequency) smelting, most of the lining materials are quartz sand. , high-alumina refractory bricks, magnesia carbon bricks, magnesia bricks and other refractory materials, the melting point of these refractory materials generally does not exceed 2200 ° C, but in actual smelting, there are many metals, non-metals or ores with high melting points, such as Alumina, silicon carbide, corundum, etc., are more difficult to smelt. At present, commonly used smelting furnaces that provide higher furnace temperatures, such as electric arc furnaces or plasma furnaces, can ge...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C04B35/52F27B14/10F27D1/10
Inventor孟安民李运领薛正良
Owner孟安民