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Forebed-free blast furnace and antimony-gold concentrate treatment method using forebed-free blast furnace

A blast furnace and front bed technology, applied in the field of antimony gold concentrate treatment, no fore bed blast furnace, can solve the problems of ineffective antimony treatment, unfavorable constant temperature of blast furnace, effective purification of sulfur-containing gas, etc., to improve economic and technical indicators, smelting The effect of improving the effect, improving the yield and quality

Active Publication Date: 2021-11-30
广西万仕智稀贵金属科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a blast furnace without a forebed and an antimony-gold concentrate treatment method using the blast furnace without a forebed. The heat in the flue gas is absorbed through the heat conduction sleeve so that the temperature of the input air is raised and enters the blast furnace. The air in the body will not absorb a large amount of heat, which helps to keep the temperature in the blast furnace body constant, which not only improves the overall smelting effect, but also effectively utilizes the heat in the flue gas, saving energy and reducing energy waste. The antimony-containing flue gas is fully oxidized through the dry gooseneck and the fire cabinet, which plays the role of secondary oxidation, which is helpful for the subsequent treatment and acquisition of antimony in it, and the antimony in the flue gas is effectively collected through the collection box. The sulfur in the flue gas is effectively treated by the desulfurization purification box, which significantly improves the overall use effect of the device, and solves the problem that the antimony in the flue gas cannot be effectively treated when the existing blast furnace smelts the antimony-gold concentrate. Effective purification of sulfur-containing gases, and the direct input of air during the smelting process will absorb the heat in the blast furnace, which is not conducive to the problem of constant temperature in the blast furnace

Method used

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  • Forebed-free blast furnace and antimony-gold concentrate treatment method using forebed-free blast furnace
  • Forebed-free blast furnace and antimony-gold concentrate treatment method using forebed-free blast furnace
  • Forebed-free blast furnace and antimony-gold concentrate treatment method using forebed-free blast furnace

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Experimental program
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Effect test

Embodiment 1

[0053] like Figure 1-12 As shown, the blast furnace without front bed proposed by the present invention comprises a blast furnace body 1, the top of the blast furnace body 1 is provided with a furnace mouth 101, and a furnace body 102, a hearth 103 and a furnace hearth 104 are arranged in the blast furnace body 1, and the blast furnace body 1 The body 1 is provided with a slag discharge port 105 and a discharge port 106 connected with the hearth 104, and the slag discharge port 105 and the discharge port 106 are provided with flashboards for sealing. The outer wall of the blast furnace body 1 is equipped with an annular wind Pipe 107, the inner peripheral surface of the annular air duct 107 is provided with multiple groups of blast pipes 108 communicating with the inside of the blast furnace body 1, and the annular air duct 107 blows air into the blast furnace body 1 through each group of blast pipes 108, so The oxygen concentration of the input air is more than 25%, and the ...

Embodiment 2

[0060] like Figure 4-6 As shown, the difference between this embodiment and Embodiment 1 is that the top inner wall of the collection box 3 is rotatably mounted with multiple sets of drive shafts 24 through bearings, and the drive shafts 24 extend downward into the corresponding collection tanks 18. On the drive shafts 24 Multiple groups of cleaning assemblies 21 are installed, and the cleaning assemblies 21 clean the first filter cloth 20. The first drive motor 23 is fixedly installed on the collection box 3 through the motor base, and the output end of the first drive motor 23 is connected to one set of drive shafts. 24 connections, the first drive motor 23 is used to drive one of the drive shafts 24, each group of drive shafts 24 is equipped with pulleys, each group of pulleys is driven by the transmission belt 25, and then the drive shaft 24 is driven by the transmission belt 25 and each group of pulleys. After the smelting operation is finished, the first drive motor 23 ...

Embodiment 3

[0063] like Figure 7 As shown, the difference between this embodiment and Embodiment 1 and Embodiment 2 is that a limiting groove 2106 is provided in the first connecting rod 2101, and a movable block 2102 is slidably installed in the limiting groove 2106, and the limiting groove 2106 is opposite to the movable block 2102. To limit the position, the movable block 2102 slides in the limit groove 2106, the second connecting rod 2103 is inserted into the limit groove 2106 and connected with the movable block 2102, the spring 2104 is fixedly installed in the limit groove 2106, and the spring 2104 is arranged horizontally And connected with the movable block 2102, the spring 2104 is in a compressed state and exerts a thrust on the movable block 2102, and the movable block 2102 exerts a thrust on the second connecting rod 2103, so that the brush plate 2105 is against the first filter cloth 20, which helps to improve For cleaning effect, the elastic contact between the brush plate 2...

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Abstract

The invention belongs to the technical field of metal smelting, and aims to solve the problems that when an existing blast furnace smelts antimony-gold concentrate, antimony in flue gas cannot be effectively treated, sulfur-containing gas cannot be effectively purified, heat in the blast furnace can be absorbed by direct input of air in the smelting process, and constant temperature in the blast furnace is not facilitated. According to the forebed-free blast furnace and the antimony-gold concentrate treatment method using the forebed-free blast furnace, the blast furnace comprises a blast furnace body, a dry type gooseneck communicates with a fire cabinet and the blast furnace body, a coiled pipe is installed on the fire cabinet, the coiled pipe is connected with a cooling box, a heat conduction sleeve is installed on the outer surface of the coiled pipe, and the heat conduction sleeve communicates with an air input pipe and an air conveying pipe. The air conveying pipe communicates with an annular air pipe and the cooling box communicates with a collecting box. According to the method, the yield and the quality of the refined antimony are greatly improved, the smelting efficiency and the smelting effect are obviously improved, the productivity is effectively improved, the energy consumption and the production cost are reduced, and the economic and technical indexes are improved.

Description

technical field [0001] The invention relates to the technical field of metal smelting, in particular to a forebed-less blast furnace and a treatment method for antimony-gold concentrate using the forebed-less blast furnace. Background technique [0002] The blast furnace is a shaft furnace in metallurgical equipment. The blast furnace is a shaft furnace in which the charge containing metal components is smelted under the condition of blowing air or oxygen-enriched air to obtain matte or crude metal. Composed of a hearth, the top of the furnace is equipped with a feeding port and a smoke exhaust port, and there are several tuyeres on both sides of the lower part of the furnace body, which are blown into the furnace. The hearth is equipped with a melt discharge port and a vent port. It is one of the important smelting equipment for pyrometallurgy because of its high productivity, high metal recovery rate, low cost, and small footprint; [0003] Blast furnaces are required in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D7/02F27D7/04F27D17/00F27D19/00C22B30/02
CPCF27D17/008F27D17/004F27D7/02F27D7/04F27D19/00C22B30/02
Inventor 赵俊华王重云万国志黄天作
Owner 广西万仕智稀贵金属科技有限公司
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