Differential motion airtight feeding electric furnace smelting device and feeding method thereof

A technology of electric furnace smelting and feeding device, which is applied in the field of metallurgy, can solve the problems of dioxin emissions that cannot meet environmental protection indicators, the laying thickness cannot be too large, and the transmission power can be reduced, so as to reduce equipment maintenance and auxiliary energy consumption. Probability of generation of harmful components, effect of reducing dust content and discharge temperature
CN102181601AActive Publication Date: 2011-09-14CISDI ENG CO LTD
11 Cites 19 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CISDI ENG CO LTD
Publication Date
2011-09-14

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a differential motion airtight feeding electric furnace smelting device and a feeding method thereof. The device comprises an electric furnace and a charging device, wherein the charging device comprises a cold receiving conveying trough and a heat conveying trough; the lower sides of the cold receiving conveying trough and the heat conveying trough are provided with an independently-controlled excitation device respectively; the outlet of the cold receiving conveying trough is provided with a conveying throat opening which is extended into the heat conveying trough; and the distance between the conveying throat opening and the bottom of the heat conveying trough is greater than or equal to the depth of the heat conveying trough. By the feeding method, shock excitation at different frequencies is applied to the two conveying troughs to realize the differential motion conveying of raw materials, so that a thicker material layer can be laid on the cold receiving conveying trough, and the material loading speed is increased; simultaneously, a shorter cold receiving conveying trough and a shorter material-conveying bottom elongated slot can be designed, so that the device and the method make project implementation convenient. In addition, due to the adoption of the throat opening and a sealed door structure, the possibility of material blocking and the air leakage rate are greatly reduced, and the device has low heat loss and a good dedusting effect, and is high-efficient, energy-saving and environment-friendly during smelting.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of metallurgy, and in particular relates to an electric furnace smelting device and a differential airtight conveying method for raw materials in the smelting process. Background technique

[0002] Electric furnace smelting is an important steelmaking method. It melts scrap metal by electric arc. For example, a large amount of electric energy will be consumed in the process of electric furnace steelmaking. At present, the cost of electric energy consumption for all scrap steel smelting accounts for 8-9% of the production cost. Among the consumed electric energy, in addition to the electric energy consumed by melting metal, the heat dissipation of the furnace body and the heat taken away by the flue gas during the operation of the electric furnace body reach 100kwh / t and 140kwh / t respectively, which together account for about 100kwh / t and 140kwh / t of electric furnace smelting power consumption. In addition, i...

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