[email protected] +86-21-58386189, 58386176

US5364443A - Process for combined decoating and melting of ...

A method of recovering an aluminum-containing metal from a scrap material containing the metal and an organic contaminant, such as paper, plastics, lacquer, paint or oil. The method involves creating a fluidized bed of solid particles, maintaining a zone of the bed at a temperature in the range of the melting point of the metal to 1000° C., introducing the scrap material into the fluidized ...

Aluminium Recycling – Processes

Depending on its source, aluminium scrap may contain a range of impurities. These can be removed via pre-treatment processes or in the melting furnaces. Scrap such as used beverage cans (UBCs) and turnings sometimes require the removal of coatings or oils prior to melting, to improve metal recovery and to reduce potential emissions.

RADIATION IMPACT DURING THE DECONTAMINATION BY …

WORKERS DUING THE MELTING Metal melting is a complex process starting by de-livery of radioactive scrap metal to the melting facility, ending by releasing of metal ingots to the environment for restricted or unrestricted reuse. As mentioned above, the paper deals with the evaluation of …

How to Build a Metal Melting Furnace for Casting (with ...

Apr 21, 2020· A crucible is a metal container that you put inside of your furnace that holds the metal you're melting. Put the metal you want to melt inside the crucible and use a pair of fire tongs to set it in the middle of your furnace. Allow the furnace to heat the crucible and melt the metal before taking it out with tongs for casting.

Scrap Metal Recycling Process of Ferrous & Nonferrous Metals

Metal items are sorted into rubbish skips, ready to be transported to scrap metal super collectors for processing. Scrap metal prices are high due to the demand for scrap metal that has been recycled. Crushing and Shredding. Scrap metal processing plants first crush the metal in compactors so it can be handled on conveyor belts easier.

Numerical simulation of the melting of scrap metal in a ...

Scrap metal fills a cylindrical furnace of diameter D up to an height H. The burners, i.e., the heat sources are located at the top of the furnace. The complete melting process may then be divided into three stages: Vol. 22, No. 4 MELTING OF SCRAP METAL IN A FURNACE 519 2.

Decontamination and reuse of ORGDP aluminum scrap - UNT ...

The Gaseous Diffusion Plants, or GDPs, have significant amounts of a number of metals, including nickel, aluminum, copper, and steel. Aluminum was used extensively throughout the GDPs because of its excellent strength to weight ratios and good resistance to corrosion by UF{sub 6}. This report is concerned with the recycle of aluminum stator and rotor blades from axial compressors.

Recycling of radioactively contaminated scrap from the ...

Recycling of radioactively contaminated scrap from the nuclear cycle and spin-off for other application U. Quade* and W. Müller* Abstract In the 1980ies, Siempelkamp foundry in Krefeld, Germany, developed a process to melt medium and slightly radioactive metals from decommissioning and maintenance works in nuclear power plants.

Furnace systems for the copper industry - ANDRITZ

Maerz is a specialist for industrial furnace plants and one of the leading suppliers of engineering, know-how, and process technology to the steel and copper industry. ANDRITZ Maerz offers converter, melting and refining furnaces for primary and secondary …

Decontamination of Explosives-Contaminated Range Scrap ...

A low-cost HGD process configuration was demonstrated in which the scrap metal was placed in piles and covered with an insulated thermal blanket. A propane-fired portable burner injected heat at a controlled rate to meet the time and temperature criteria of up to 600oF for up to a 6-hour holding time, to reach a decontamination level.

Melting of contaminated metallic materials in the process ...

Decommissioning of nuclear power plants results in generation of a large amount of contaminated metals that can be effectively decontaminated using various technologies. Herein the possibility of decontamination of contaminated scrap metal by melting within the …

About Metal Recycling - The Balance Small Business

Aug 30, 2018· Scrap metal recycling is a process as well as being the basis for a powerful industry. Scrap metal recycling involves the recovery and processing of scrap metal from end-of-life products or structures, as well as from manufacturing scrap, so that it can be introduced as a raw material in the production of new goods. It can be recycled repeatedly with no degradation of its properties.

scrap metal melting furnace, scrap metal melting furnace ...

scrap Iron steel small metal melting electric arc furnace Electric arc furnace (EAF) is steel making equipment untilizing the thermal engergy of arc generated between electrodes and scrap of metallic material, it is widely used for production of top quality carbon steel, alloy steel, stainless steel in steelmaking works and steel casting plant, we have EAF capacity from 0.5t to 125t.

What is Scrap Metal Recycling Process

5. Melting and Purification Melting of the scrap metal takes place in a large furnace. Although the recycled metal and metal mineral all need melting, the former requires less energy. Melting can take minutes or hours depending on how big the furnace is, the volume of metal placed in the furnace and the heat degree of the furnace.

Decontamination and Conversion of Nickel Radioactive …

This nickel has a particularly high scrap value, but will require decontamination before it can be sold as scrap or recycled. Decontamination of this nickel is challenging for two primary reasons: • Radioactive contamination includes 99Tc, which can not be removed by conventional metal purification

Metal Melting and Pouring: Life of a Casting | Reliance ...

Glowing metal furnaces and sparking rivers of steel may look as they did 100 years ago, but the technology behind each step is evolving. Learn more about the creation, melting, and pouring of alloys in the step that takes a design and makes it real.

Decontamination of contaminated scrap metal by melting ...

Presented paper also deals with the evaluation of an exposure of the workers during melting of radioactive scrap metal as well as impact of melting on the environment. According to obtained results, the effective doses absorbed by workers during the melting meets …

DECONTAMINATION-MELTING OF URANIUM …

A third effect, which is obtained through melting, is decontamination due to the fact that some nuclides are caught in filters, like Cs-137. It is under this aspect the value of decontamination melting of uranium–contaminated scrap metal has to be considered.

How Does the Scrap Metal Recycling Process Work?

May 22, 2018· How Does the Scrap Metal Recycling Process Work? Metal is more valuable than you think. If you have leftover metal, you can recycle it and make some extra money. Here's how the scrap metal recycling process works. Did you know nearly 10 million tons of metal is recycled each year?

Metal Types and Recycling Process

Jun 25, 2019· Traditionally, metal recycling has been regarded as a profitable business opportunity. In recent years, however, depressed prices have proved to be challenging. At an entrepreneurial level, a common entry point into the metal recycling business is through starting scrap metal collection business or becoming a scrap metal vendor.

US4010935A - High efficiency aluminum scrap melter and ...

A high efficiency aluminum scrap melting system is provided in which a portion of the hot combustion gases employed to melt the aluminum in a hearth is recycled through scrap-receiving preheat compartments to preheat scrap and volatilize contaminants as the scrap is fed to the hearth, the remainder of the hot combustion gases leaving the hearth as hot exhaust gases being optionally …

High frequency melting technology for radioactive metal waste

high-frequency melting, for volume reduction, decontamination and recycling of metal scrap contaminated with radioactive materials from nuclear power plants and nuclear facilities. By the melting treatment, high volume reduction of metal waste and decontamination of radionuclides such as cesium, strontium and α nuclides are expected. In ...

Process for Melting Scrap Metal - L'Air Liquide Societe ...

May 23, 2013· Process for melting scrap metal in a furnace comprising the steps of feeding a charge of solid scrap metal to the furnace, supplying fuel and an oxygen-rich oxidant to the furnace and combusting the fuel with the oxidant to generate heat inside the furnace, melting the charge of solid scrap metal in the furnace by means of the heat, withdrawing the molten metal from the furnace.

Scrap Metal - Play Scrap Metal on Crazy Games

Maybe you think this is a scene from Fast and Furious? It's not, this is Scrap Metal, a 3D driving game featuring 6 awesome cars! These amazing racing cars include a Mustang, a Mini Cooper, and a Jeep. There is no specific mission in this game, you can do whatever you want with your cars; whether it is making flips using the ramps, speeding through the area, drifting around, or even crashing ...

National Scrap Metal Prices - Today's Scrap Prices

Scrap metal prices are constantly changing so the iScrap App National Prices is a great resource for you to see the trend of where scrap prices are heading. Depending on the different metals markets, some metals may be on the upward trend while others are on the downward trend.