Ideally, a lead sinter machine should be able to produce . strong, uniform, low-sulfur sinter at high p roduction rates. 16th IFAC Symposium on Automation in Mining, Mineral. and Metal Processing ...

The mixture consists of approximately 25 pct high-grade lead concentrate, 50 pct return sinter, 15 pct slag, and 10 pct fluxing agents, dusts, etc. The sintered product is crushed and sized with the undersize material being recycled to the sinter machine …

Sintering occurs on a traveling grate furnace known as a "sinter machine." The lead concentrates are mixed with fluxes, recycled sinter, and flue dusts and other recycled materials. After moisture is added, the mixture is pelletized and fed to the sinter machine. A thin layer of the feed

Siemon et al. [5] used a computer program to improve the sinter composition in a lead/zinc sinter plant by the use of charge calculation which included as a target the theoretical peak bed temperature. Xu et al. [6] and Gui et al. [7] described the modelling and state optimization of the permeability and heat states of the lead-zinc sintering ...

Due to the time limitation for stopping the sinter machine it was only possible to insert 2 or 3 thermocouples at a time. Usually two thermocouples were used in the trials. The speeds of the sinter machine were maintained in the range of 130 …

tions. During sintering, a blast of hot air or oxy-gen is used to oxidize the sulfur present in the feed to sulfur dioxide (SO 2). Blast furnaces are used in conventional processes for reduction and refining of lead compounds to produce lead. Modern direct smelting processes include QSL, Kivcet, AUSMELT, and TBRC. Primary Lead Processing

Ideally, a lead sinter machine should be able to produce . strong, uniform, low-sulfur sinter at high p roduction rates. 16th IFAC Symposium on …

Siemon et al. [5] used a computer program to improve the sinter composition in a lead/zinc sinter plant by the use of charge calculation which included as a target the theoretical peak bed temperature. Xu et al. [6] and Gui et al. [7] described the modelling and state optimization of the permeability and heat states of the lead-zinc sintering ...

• Henkel Ag sinter pastes have good performance in active power cycling. Full realize of sintering mateiral properties need more robust wire bond solution. • Current sinter pastes have improved performance over SAC solder which is used as a standard in power electronic module assembly.

3) high-lead content sludge by-products from other facilities; and 4) undersized sinter recycled from the roast exiting the sinter machine. The undersized sinter return stream mixes with the other feed components, or green feed, as the two streams enter a rotary pelletizing drum. A water spray into the drum enhances the

Sintering is the final step of all powder metallurgy processes, including the metal 3D printers at Desktop Metal. During sintering, brown parts (a combination of metal powder and binder) are first heated to a temperature where the binder evolves and is removed from the parts. The furnace then ramps up to the sintering temperature of the metal ...

Plants for the production of lead are generally referred to as lead smelters.Primary lead production [clarification needed] begins with sintering.Concentrated lead ore is fed into a sintering machine with iron, silica, limestone fluxes, coke, soda ash, pyrite, zinc, caustics or pollution control particulates. Smelting uses suitable reducing substances that will combine with those oxidizing ...

Sinter plants agglomerate iron ore fines (dust) with other fine materials at high temperature, to create a product that can be used in a blast furnace.The final product, a sinter, is a small, irregular nodule of iron mixed with small amounts of other minerals. The process, called sintering, causes the constituent materials to fuse to make a single porous mass with little change in the chemical ...

An Automation Master Plan was conducted to achieve the control optimization of a blast sintering process based on a Dwight-Lloyd machine. In the pursue of this goal was necessary to use an engineering and scientific approach in order to identify and analyze all the factors influencing the production rate, product quality and environment protection, among others.

Achieve uniform sinter quality at low operational costs. Sinter is the primary feed material for making iron in a blast furnace. The production of high-quality sinter is crucial for assuring consistent, stable furnace productivity with a low consumption of reductants. Sinter quality begins with the proper selection and mixing of the raw materials.

20 The bigger machines have less heat losses and prove energy efficient. The …

Process for sintering lead concentrates. An improved process for increasing (1) the removal of sulfur from lead concentrates and (2) the ratio of fresh, lead concentrate in the feed to a conventional lead concentrate sintering machine. Oxygen is added to the air of the updraft ignition section in predetermined amounts coupled with predetermined ...

Due to the time limitation for stopping the sinter machine it was only possible to insert 2 or 3 thermocouples at a time. Usually two thermocouples were used in the trials. The speeds of the sinter machine …