PRODUCT NAME: Reflection refining furnace

The present invention discloses a bottom blowing process for alkaline refining of regenerated lead by fire method. After the crude lead liquid is poured into the refining furnace from the melting furnace, argon gas is introduced from the bottom. When the temperature of the lead liquid drops to about 330 ℃, slag is skimmed, and the lead copper content is reduced to about 0.1% by melting and removing copper. After skimming, sulfur powder is sprayed into the bottom of the refining furnace to further remove copper. The temperature is raised to 450-480 ℃, and the reaction is carried out for 30-60 minutes. The sulfide slag is removed to complete the copper removal process; When the lead liquid temperature is about 450 ℃, powdered Sodium nitrate and sodium hydroxide are blown from the bottom of the refining furnace. After reaction for 30min, NaCl powder is blown from the bottom of the refining furnace with argon gas to complete the arsenic, antimony and tin removal process. The loss of said bottom blowing process method, refining agent and/or alloy is greatly reduced; There is only inert gas with low solid solubility in the lead liquid, which is not easily oxidized by the lead liquid and lead ingot. There is no lead slag inside the lead liquid and lead ingot. When using recycled lead, there is less lead slag and the slag yield is low; During the refining process, the surface of the lead liquid is always protected by argon gas, which can be used for high-temperature Ag removal operations. The regenerated lead contains low Ag content; The argon gas blown into the bottom will float together with small bismuth compound particles, resulting in low bismuth content in lead ingots.

PRODUCT PICTURES: lufeng factory customized size of lead refining furnace table

Xiangtan Lufeng Machinery Co., Ltd. was established in 2010 and is located in the Industrial Park of Hunan Xiangtan High-tech Zone. Through more than 10 years of precipitation and development, Lufeng company has made many achievements in the design and manufacture of high-quality copper&lead&zinc smelting equipment.

Today, Lufeng has become one of the best manufacturers of high-quality smelting equipment in China and abroad, such as copper&lead smelting furnace, linear ingot casting machine, disc ingot casting machine, lead pot refining system, lead-acid battery crushing and sorting system, copper&lead&zinc electrolysis system, etc.