Fire refining bismuth technical and economic indicators include straight refining yield, recovery of refining, alkali consumption, consumption of zinc, chlorine consumption, coal consumption, the passing rate, product rate and the like. First, refining straight yield Refining refers to direct yield pure bismuth in an amount of pure refined bismuth output amount of bismuth into the material in the ratio of production practice, since the secondary slag and silver in addition to copper-depleted slag returns compartment batch process, the amount of slag not weighed It has not been analyzed, and it is only used as the slag of this batch to offset the slag invested in this batch. Therefore, there is a slight discrepancy between the calculation of the direct yield and the actual situation in each batch. When the direct yield is calculated on a monthly basis, the amount of slag remaining last month and the amount of slag remaining in the month are considered, so the straight-through yield per month is more accurate. The calculation formula is: Second, the refinement recovery rate The amount of pure sputum in the refined product: (the amount of pure hydrazine in the input material - the amount of pure hydrazine in the returned material - the amount of pure hydrazine in the transferred material), that is, in the denominator term, the secondary copper slag and lean slag that are returned should be considered The amount of pure sputum and the amount of mash after casting, but also the amount of pure strontium transferred to the melted silver slag and transferred to the crude slag, but also the transfer to recover zinc chloride The amount of pure ruthenium in the zinc chloride slag and the lead chloride residue recovered. Refining recovery rates are calculated on a monthly and yearly basis and are not calculated in batches. Its calculation formula is: In the formula, the amount of pure bismuth (in kilograms); Bi-input amount of pure ruthenium (kg); Bi return - the amount of pure ruthenium in the returned material (kg); The amount of pure rhodium (kg) in the Bi-transfer material. The direct yield and recovery rate of refining are the main indicators for measuring the level of production technology. They are related to the quality of rough materials, equipment conditions, choice of process flow, technical sufficiency of workers, production organization and management, and directly reflect the production level of enterprises. Directly affect economic benefits. Third, product qualification rate Product qualification rate refers to the ratio of qualified product to product quantity. Its calculation formula: There are two concepts of qualified products: one is considered to be a product that meets the quality standards (national standard, ministry or enterprise standard); one is considered to be a product produced according to the quality standards arranged by the production plan. The latter concept is often used in practice. Fourth, what is the first grade rate? The ratio of the number of primary products to the total number of products in the product. Its calculation formula is: Product qualification rate and first-class product rate are indicators for measuring product quality. For the quality requirements of the product, it should be fixed by sales, that is, according to the market needs to develop production plans to guide production, and should not blindly pursue high-purity products that do not consider market needs and economic benefits. 5. What is the alkali consumption, chlorine consumption, zinc consumption and coal consumption? The amount of solid alkali, chlorine, zinc ingots, and fuel coal consumed in the production of one ton of refined sputum (kg). Its calculation formula is: Alkali consumption, chlorine consumption, coal consumption and zinc consumption are indicators for measuring the consumption of auxiliary materials, which directly affect production costs and economic benefits. Therefore, we strive to reduce these consumptions. The influencing factors of these indicators are mainly related to the organization and management of production. It is related to the technical proficiency and responsibility of the operator. CNC turning is a subtractive manufacturing process in which pieces of material are rotated as a machine tool is fed to the piece, removing material to create a finished piece. It is primarily used to manufacture parts that are cylindrical in nature. We supply custom cnc turning service and CNC turning parts manufacturing Cnc Turning,Cnc Turning service,Cnc Turning Parts,Cnc Turning Services Ningbo Rongna Technology Co.,Ltd , https://www.machiningcustom.com
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The main technical and economic indicators of fire refining