Working Principle of Eddy Current Sorter

Eddy current sorting is a sorting technique that utilizes different conductivity of materials. Its sorting principle is based on two important physical phenomena: an alternating magnetic field that changes over time is always accompanied by an alternating electric field (electromagnetic induction law); A current carrying conductor generates a magnetic field (Biot Savart's law).

2023/09/07

Smelting and classification of lead

01. Lead smelting The main raw materials for lead smelting are lead sulfide concentrate and a small amount of block ore. There are two methods for smelting lead: pyrometallurgy and wet metallurgy. Currently, pyrometallurgy is the main method in the world, and wet metallurgy of lead is still in the experimental research stage. The pyrometallurgical lead smelting process basically adopts the sintering roasting blast furnace smelting process, accounting for 85-90% of the total lead production; Next is the reaction melting method, which can be equipped with chamber furnaces, short kilns, electric furnaces, or vortex furnaces; Precipitation melting is rarely used. The refining of lead mainly adopts fire refining, followed by electrolytic refining, but due to customary reasons, electrolytic refining is not widely used in China. For difficult to separate sulfide lead zinc mixed concentrates, the closed blast furnace smelting method that simultaneously produces lead and zinc is generally used for processing. For the extremely difficult to separate mixed ore of lead and zinc oxide, a unique treatment method has been developed in China through long-term research, which involves using the raw ore or its enriched products of the mixed ore of lead and zinc oxide, sintering or pelletizing them, and melting them in a blast furnace to obtain coarse lead and molten slag containing lead and zinc. The slag is further fumigated in a fuming furnace to obtain zinc oxide products, and electrolytic zinc is obtained through wet zinc smelting. In addition, zinc oxide products can also be directly fumigated using a rotary kiln.

2023/09/04

The Use of Lead and Zinc

Lead and zinc are widely used in fields such as electrical industry, mechanical industry, military industry, metallurgical industry, chemical industry, light industry, and pharmaceutical industry. In addition, lead metal has many uses in sectors such as the nuclear industry and petroleum industry. More than 80% of the world's lead is used to produce lead-acid batteries.

2023/09/01

Battery dismantling machines

Battery dismantling machines Battery dismantling machines (battery dismantling machines, battery dismantling machines) easily disassemble waste batteries. If electric vehicle batteries and car batteries are directly disposed of, they pose a significant risk and require centralized recycling for harmless treatment. Therefore, we will use our company's waste battery dismantling machine. The battery car battery dismantling machine equipment uses manual feeding to push waste batteries into the body. The propulsion system pushes the batteries into the position to be cut, and the crank drives the cutting blade to accurately cut off the waste battery cover. The cutting blade can be adjusted, and the propulsion system pushes the next battery forward again.

2023/08/31

How many models of aluminum ingots are there

According to the national standard, aluminum ingots can be divided into 8 models according to their composition, AI99.90 85 70 60 50 00 7E. The general market demand is for standard aluminum AI99.70, with high-end requirements of 85, special requirements of 99.90, and even a few higher requirements.

2023/08/10

The relationship and differences between cathode copper, anode copper, and 1 # electrolytic copper

Electrolytic purification of copper: Coarse copper (containing 99% copper) is pre made into thick plates as the anode, pure copper is made into thin plates as the cathode, and a mixture of sulfuric acid (H2SO4) and copper sulfate (CuSO4) is used as the electrolyte. After being electrified, copper dissolves from the anode into copper ions (Cu) and moves towards the cathode, After reaching the cathode, electrons are obtained and pure copper (also known as electrolytic copper) is precipitated at the cathode. Impurities such as iron and zinc, which are more active than copper, dissolve together with copper to form ions (Zn and Fe). As these ions are less likely to precipitate compared to copper ions, adjusting the potential difference appropriately during electrolysis can prevent these ions from precipitation at the anode. Impurities such as gold and silver, which are less active than copper, deposit at the bottom of the electrolytic cell The copper plate produced in this way is called "electrolytic copper" and has extremely high quality, which can be used to make electrical products. The sediment at the bottom of the electrolytic cell is called "anode mud", which is rich in gold and silver and is very valuable. It has extremely high economic value when taken out and processed Electrolytic copper=cathode copper

2023/08/16

Customized 10T rotary furnace for our clients

Rotary smelting furnace A rotary furnace is a type of blast furnace, whose body is an inclined cylindrical container that can rotate. The principle of rotary furnace is to use the effect of high temperature and high-speed Redox to mix ore and coke together, rapidly heat and melt in the furnace, and separate metal and waste slag. The internal parts of the rotary furnace are divided into different areas, with the top layer being the combustion zone, where coke and oxygen react to produce high-temperature and high-pressure gas flow. The gas flows downwards and enters the reduction zone. The ore and coke undergo a reduction reaction in the reduction zone, and the metal is reduced out. The metal flows downwards along the furnace barrel and finally reaches the slag area, where it is separated from the waste slag. The rotary furnace has the advantages of high production capacity and high melting efficiency, and can melt various metal materials such as iron, steel, and alloys. In the steel industry, rotary furnaces have become one of the main steelmaking equipment, widely used in fields such as steelmaking, ironmaking, and scrap recovery. Lead scraps, Lead grid, Lead acid battery scrap, adaptable to different raw materials. The Lead melting rotary furnace consists of a rotary host, a fire-resistant furnace lining, a combustion system, a hydraulic system, a Ring gear transmission system and a flue system. Both charging and discharging pass through the furnace mouth installed with a furnace door. During charging and discharging, the furnace door installed with a burner can be opened. Auxiliary machines are equipped with supporting automatic feeding machine, automatic slag (soup) bag and slag raking machine, and automatic ingot casting and stacking machine. Through these supporting equipment, the automatic operation of the whole process can be realized. Details include: - Refractory Material of Chrome-Magnesium basis - air-fuel burner or Oxy-fuel burner or Heavy oil burner - Feeding door opening through local control panel and through remote control - Door operation system with hydraulic unit; - Rotation system 0 - 1 rpm with variable speed driver (by VFD)

2023/08/30

Delivery Residual pole scrubber to our clients

Residual pole scrubber In the process of electrolytic refining of lead by residual electrode scrubber, the metal lead loses electrons in the anode and becomes lead ions which enter the electrolyte, in addition to a small part of the impurities in the anode and lead dissolved in the electrolyte, the vast majority of insoluble and adhere to the anode surface to form anode slime. The anode slime contains a lot of lead, antimony, bismuth and precious metals such as gold and silver, so the attached anode slime and residual acid must be cleaned and recycled to reduce repeated smelting. At present, there are three kinds of washing equipment in China: horizontal residual electrode washing machine, vertical residual electrode washing machine, rotary residual electrode washing machine.

2023/08/29

Discover Supreme Power for Power Solution 4.0HP-7.0HP

New launching: Yasuyama Air Cooling Diesel Engine 173F/173FE New launching: Yasuyama Air Cooling Diesel Engine 178F/178FE Output 1: Key type Output 2: Spline type for tiller use Output 3: Thread type for water pump use

2021/01/10

Detailed explanation of copper process flow

The smelting methods for producing electrolytic copper from copper concentrate in the world are divided into two categories: pyrometallurgical and wet smelting. At present, over 80% of the refined copper production is produced by pyrometallurgy, and about 20% of the refined copper is produced by hydrometallurgy. The detailed information is as follows.

2023/08/28