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Equipment for continuous vacuum distillation and separation of high arsenic alloy

A technology of distillation separation and vacuum, which is applied in the direction of improving process efficiency, etc., can solve the problem of large amount of arsenic-containing alloy materials, and achieve the effect of continuous cooling

Active Publication Date: 2018-08-24
KUNMING DIBOO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual production, the amount of arsenic-containing alloy materials is relatively large, and the intermittently operated arsenic collector can no longer meet the demand

Method used

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  • Equipment for continuous vacuum distillation and separation of high arsenic alloy
  • Equipment for continuous vacuum distillation and separation of high arsenic alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021]Put the high-arsenic tin-antimony alloy with 75% tin, 15% lead, 2% arsenic, and 7% antimony as the raw material in the melting feeding system, melt it into a liquid state by heating, seal the whole set of vacuum distillation furnace equipment, and start the vacuum system , when the pressure in the furnace is 35Pa, turn on the heating system, and when the predetermined temperature reaches 1350°C, keep warm and continue to distill. The melting feed system continuously and quantitatively feeds materials into the vacuum furnace during the distillation process. The added high-arsenic-tin-antimony alloy material begins to evaporate under the high-temperature vacuum atmosphere to form arsenic-antimony mixed metal vapor. The thick antimony alloy has a relatively high melting point, and most of the antimony vapor will condense on the condensation cover (11) into a liquid state and then flow to the collection pan (7), and then discharge the volatiles through the discharge port on ...

Embodiment 2

[0023] Put the high-arsenic tin alloy with 91% tin, 3.5% arsenic, 1.5% copper, and 0.07% antimony as the raw material in the melting feeding system, melt it into liquid by heating, seal the whole set of vacuum distillation furnace equipment, start the vacuum system, When the pressure in the furnace is 50Pa, the heating system is turned on, and when the predetermined temperature reaches 1450°C, the distillation is continued with heat preservation. The melting feed system continuously and quantitatively feeds materials into the vacuum furnace during the distillation process. The added high-arsenic-tin alloy material begins to evaporate under the high-temperature vacuum atmosphere to form arsenic-tin mixed metal vapor. The sublimation point of the crude arsenic alloy is low, and most of the crude arsenic alloy vapor after sublimation will evaporate to the condensing drum (14) with the lowest temperature on the upper end, and condense and adhere to the surface of the condensing dr...

Embodiment 3

[0026] Put the high-arsenic tin-lead-antimony alloy with 54.86% tin, 19.84% antimony, 16.35% lead, 4.5% arsenic, and 0.23% copper as the raw material in the melting feeding system, melt it into a liquid state by heating, and seal the whole set of vacuum distillation furnace equipment, start the vacuum system, and when the pressure in the furnace is 30Pa, turn on the heating system, and when the predetermined temperature reaches 1300°C, keep warm and continue to distill. The melting feed system continuously and quantitatively feeds materials into the vacuum furnace during the distillation process. The added high-arsenic, tin-lead-antimony alloy material begins to evaporate under the high-temperature vacuum atmosphere to form arsenic-lead-antimony mixed metal vapor. The melting point of lead and antimony is relatively high, and most of the lead and antimony vapor will condense on the condensation cover (11) into a liquid state and then flow to the collection pan (7), and then di...

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Abstract

The invention relates to equipment for continuous vacuum distillation and separation of a high arsenic alloy. The equipment comprises a continuous feeding kit, a vacuum distillation and separation kitand a continuous arsenic collection kit. After materials are heated and melted in a melting and feeding system, the materials are continuously fed into the vacuum distillation and separation kit through a feeding pipe and heated by a heating element, and the materials are continuously volatilized and purified in a volatilization stack; residues finally are discharged at openings in a bottom evaporation tray through a residue discharging pipe; arsenic and other volatile elements volatilize simultaneously, and mixed metal vapor is formed; after the volatilized mixed vapor is condensed by a condensation cover, by controlling the condensation temperature of the condensation cover, the metal vapor with the high melting point is condensed into a liquid state by the condensation cover and is drained from the openings in a confluence plate through a volatile discharging pipe; arsenic vapor with the low melting point is guided to the continuous arsenic collection kit through an arsenic vapor guide cylinder; and a scraper continuously scrapes away the crude arsenic alloy condensed on the surface of the scraper while a condensing drum rotates so as to realize the purpose of continuously collecting the crude arsenic alloy.

Description

technical field [0001] The invention relates to equipment for continuous vacuum distillation and separation of high-arsenic alloys, belonging to the field of nonferrous metallurgical equipment manufacturing. Background technique [0002] Arsenic is a very dispersed element. It is rarely seen in nature in its natural state. It mainly exists in the form of sulfide ore, and is often distributed in various metal ores in the form of mixture. In the smelting process of non-ferrous metal ores, arsenic is distributed in the products such as smoke, waste residue and anode slime produced in the smelting process. When the valuable metals in soot, waste residue and anode slime are comprehensively recovered, arsenic returns to the process. The existence of arsenic increases the difficulty of material treatment, reduces the market value of materials, and has serious arsenic pollution problems, which are harmful to the environment. cause great harm. [0003] Chinese patent CN202139286U d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B9/02C22B30/04C22C1/02
CPCC22B9/02C22B30/04C22C1/02Y02P10/20
Inventor 戴卫平陈巍马祥亚熊俊勇陈浩杨堃李建国杨寿云速斌潘建仁黄道泽简爱华
Owner KUNMING DIBOO TECH
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