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The combination crusher is a new generation high efficiency crushing machine designed and researched by integrating the domestic and foreign crusher technology with the same kinds and optimizing the main technical parameters.
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gold smelting & metal melting equipment - 911metallurgist

The technique for removing impurities from pig iron on a laboratory scale did not reach a high state of perfection, but refining results indicated that satisfactory steel can be consistently produced in an arc furnace from low-grade ores. Dolomitic limestone did not remove sulfur as effectively from pig iron as high-quality limestone

Coke, bituminous coal, and lignite were found to be about equal on a fixed-carbon basis for reducing iron oxides. Laboratory-scale arc-furnace smelting experiments showed that power consumption was nearly inversely proportional to the grade of ore. The ability of the arc furnace to use low-grade iron ores and low-rank reductants effectively in coarse or fine sizes is noteworthy

Estimated reserves of all classes of iron ore within the United States are over 76 billion tons, exclusive of the direct shipping ores of the Lake Superior region. A high percentage of these 76 billion tons require beneficiation by one or more of several well-known methods to produce a feed suitable for blast-furnace smelting. Beneficiation efficiency varies from poor to excellent, depending on the concentrating characteristics of the ore. Pyrometallurgical separation of iron from ore gangue results in high recovery of metal as pig iron. Pig irons from most types of iron ore are amenable to refining by standard methods

gold smelting & metal melting equipment - 911metallurgist

The direct smelting of low-grade iron ores, in contrast with smelting high-grade ores, involves such considerations as relatively low production per furnace because of high slag volume, increased cost of power and furnace operation per unit of production necessitated by melting larger quantities of gangue and flux, and higher transportation and mining costs for each unit of iron produced, because more fuel, ore, and flux are required. Ore-dressing low-grade ores to obtain high-grade concentrate, rather than direct-smelting low-grade ores, involves less capital outlay and lower operational costs. However, recovery of iron by a concentrator is rarely as effective as by a furnace, and an additional loss of iron will be taken when concentrates are smelted. Electric furnaces can smelt soft or fine ores and utilize low-grade fuels, but the cost of operating power deters their widespread use. Proper evaluation of the relative merits of treating low-grade iron ores by beneficiation or by electric smelting requires the availability of a large amount of technical data. The purpose of this manuscript is to add facts to existing information

Large deposits of iron ore occur in eastern Texas; reserves of measured and indicated ore, in terms of the washed product, have been estimated to be 160,000,000 tons. Shallow overburden, a layer of oxide ore underlain by carbonate ore, and a high silica content are characteristic features of many ore bodies. The ore was recognized in 1839, and the deposits were first worked during the Civil War. Production was intermittent until 1944; since that time yearly output has been considerable. The production recorded was 3,960,000 long tons in 1953, 2,240,000 long tons in 1954, and 3,110,000 long tons in 1955; all this material required beneficiation. The concentrates were smelted in Texas

zhengzhou jinquan precious metal refining equipment co., ltd

   Zhengzhou Jinquan Precious Metal Refining Equipment Co., Ltd. is located in the electronic and Electrical Industrial Park of Zhengzhou high tech Zone, Henan Province, China. It is 2km away from gouzhao exit of Lianhuo Expressway and 60km away from Zhengzhou airport. The company specializes in the smelting, refining and environmental protection of precious metals (gold, silver, platinum, palladium and rhodium), including technology research and development, equipment development, technology promotion, production process design, workshop and plant design, general contracting of precious metal refining engineering, general contracting of laboratory construction projects, and pilot production guidance. The products are: high current density silver electrolytic unit, high current density gold electrolytic unit, swirl electrowinning unit, platinum palladium rhodium refining and purification production system equipment, medium frequency furnace, high frequency furnace, ingot vacuum casting machine, bead spreader, wet gold refining process equipment, gold mud controlled electric chlorination production system equipment, polypropylene storage tank, flue gas absorption tower, nitrogen oxide flue gas Processing system equipment, gold refining mold, fire assay ash dish, lead skin for assay, rhodium refining special reagent. The authorized products are: titanium reaction kettle, glass reaction kettle, enamel reaction kettle, electrolytic rectifier power supply, glass condenser, water chiller, oil pressure machine, laser marking machine, steam generator, aluminum tank, anti-corrosion pump valve, hardware and electrical equipment and other common equipment of rare and precious plants. To undertake the construction projects of the alchemy room, rare and precious plant and laboratory. The company has a group of business backbones with rich production experience, who have respectively served as the chief engineer, deputy general manager of production, director of production plant, workshop director, team leader and other positions of precious metal smelting and refining enterprises, and can provide the owner with a full set of technical services including factory design, non-standard equipment production, agent procurement of standard equipment, installation and commissioning, and field operation guidance. We have successfully completed the turnkey EPC business for many times. So far, the company has successfully completed the gold and silver refining workshop construction projects of dozens of enterprises in the industry. Among the enterprises we have cooperated with, 13 gold refining enterprises have obtained the qualification of "providing standard ingot unit" of Shanghai gold exchange, reflecting the company's high technical level and good service quality. The company has 43 patents in precious metal refining technology and equipment. In 2017, the company was rated as a science and technology enterprise in Henan Province, and in 2018, it was rated as a high-tech enterprise

silver smelting equipment,silver smelting equipment

Standard quality control system and team are responsible to insure the products quality in every process. The main products of our company are: JC small melting furnace, Graphite Crucibles and moulds, spare parts of the furnace. 1)Which countries your products are exported to9 Our products are sold all over the world and with related certifications

F Melting Furnace Better Heating penetration and even temperature inside the melting metal. M. Pre-sale service: 1. recommend the most suitable machine for customers, according to their requirements. 3.How to install your machine9 We have paper installation instructions and videos, we will teach till you learn it

This gold melting machine kit is mainly designed to melt small quantity of gold form 1g to 2kg . It is also suitable to melt other precious metal like silver, copper, aluminum and their alloys . Comparing with resistance heating and propane melting, this gold melting machine adopts induction technology to improve melting efficiency dramatically

silver smelting equipment,silver smelting equipment

4.Induction heating melting furnace have fixed type,push out type,auto pouring type,furnace up down moving type. 4.Metal melting: (Vacuum) molding, casting molding and evaporation coating of gold, silver, Fe, Al and other metals. 4.How to use your machine9 We have paper instructions in English, and we will teach till you do it well

4. Display of heating power and heating current and oscillating frequency. 7. Use ready-made crucible: no need skilled person to make lining with refractory material, convenient for users. Such as: wrenches, pliers rough forging, rolling and other drilling flowers

1. Which countries your products are exported to9 Our products have been sold all over the world and with related certifications . 2. How about the warranty9 All our products have one year quality warranty, during the warranty period, the spare parts for replacement are free . 3. How to install your machine9 We have installation instruction papers and videos, we will teach till you can do it yourself

silver smelting equipment,silver smelting equipment

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