For the moderator: Five metallurgy questions (a reward of 30+ wealth for those who can answer them all in detail)

It’s not coming from here; never mind, let’s use this place for now. I need the questions for a knowledge competition related to overprints and safety zones, so the questions aren’t being made public yet, haha. If you’re going out this time, go ahead and see who else in the district is pretty good besides you.

This post was last edited by 155185446 on 2011-7-15 22:59. 30 – that’s way too little wealth; there are too many problems, and typing is so tiring. It will also take a lot of time. Question 1: What are the challenges in reducing costs in non-ferrous metal metallurgy? 1. Regarding technical issues and cost reduction, it is necessary to adopt new technologies, but doing so inevitably involves significant risks. 2 Conceptual issues. Some experienced teachers tend to resist new technologies, and it’s difficult to persuade them. Some people, regardless of whether you do well or not, deliberately make things difficult for you everywhere ； And employee training is also troublesome ； 3 Management issues. Leaders only hire those who know how to flatter others and do superficial work, those who know nothing about metallurgy, or those who lack flexibility; as a result, costs can never be reduced. Or if leaders casually believe whatever people say, without any rewards or penalties for waste reduction, it is impossible to cut costs. 4 design problems. Some factory buildings had problems from the outset of their design. It’s hard to make changes after that. It is of course also very difficult to improve the process. The cost is simply determined to be that much. Question 2: What are the environmental protection measures for the zinc electrolysis workshop? I’m not sure whether it’s the internal environment of the workshop or the overall environment ? To improve the workshop environment, one can do the following: build the walls shorter, leave more space between the walls and the roof, and add a few larger exhaust fans. If we want to protect the external environment, we can only add more exhaust fans and properly handle the exhaust gases. The wastewater from the workshop can be recycled for reuse, or it can be pumped into the zinc leaching workshop for ore washing and floor cleaning. Question 3: What is the comprehensive recycling technology for valuable metals such as zinc, copper, and nickel? This cannot be explained in detail here. Our general process is as follows: after zinc is leached using sulfuric acid, zinc sulfate is purified to produce copper-cadmium slag and cobalt-nickel slag. The copper-cadmium slag is treated with zinc powder to separate it into copper slag and cadmium slag, while the solution is returned to the electro-zinc production system. Cobalt-nickel slag is separated using sodium persulfate, and the solution is returned to the zinc sulfate system. Question 4: What is the development history and trends of electrodes in metallurgical processes? At present, the development of electrodes seems to be progressing slowly; in my opinion, they should evolve in the direction of lower cost and greater corrosion resistance. Question 5: What have you gained from working in the metallurgy field? I’ve gained a lot. From what I’ve gained so far, I now understand that having no knowledge is the most terrifying thing. I know that those in the technical field should protect themselves at work. Now I know how to use people as a leader. Technically, it’s been 3 years since I graduated, with 4 years of actual work experience. I have experience with testing, mining, and metallurgy; I have a solid understanding of this industry and am familiar with many instruments and processing techniques. Of course, there are also many things I haven’t had the chance to experience. I hope everyone can offer some advice. If anyone has any good job recommendations, feel free to share them. I’m quite tired of my current environment. I hope to exchange ideas with everyone.

Question 1: What are the challenges in reducing costs in non-ferrous metal metallurgy? Firstly, the material ratios must be reasonable, and the addition of chemicals should also be appropriate; unreasonable methods of addition should be avoided. Reducing the consumption of bulk materials is of primary importance. Secondly, throughput and system operation rate are also crucial, as they relate to kinetic energy consumption. Thirdly, management must be in place. Question 5: What have you gained from working in the metallurgical process? No matter what kind of smelting work is involved, one needs to put in effort; it’s necessary to understand one’s own system thoroughly and to become familiar with it as if it were one’s own body. One should not complain about the current environment – wherever one is, it is one’s own actions that create opportunities, whether in terms of the environment, support from others, or prospects.

Question 1: What are the challenges in reducing costs in non-ferrous metal metallurgy? Achieving the target product output is the basis for reducing production costs in the workshop. In monthly production, fixed costs are incurred inevitably; only by ensuring smooth production and meeting the planned output can unit costs be effectively reduced. The control of process quality is an important guarantee for reducing production costs in workshops. When there are quality fluctuations in intermediate products, rework is required once or even multiple times, which inevitably leads to a significant increase in the consumption of auxiliary materials and energy. Therefore, strengthening process quality management and improving the first-pass yield of intermediate products are important means of reducing costs. Question 2: What are the environmental protection measures for the zinc electrolysis workshop? Dust is collected using bag filters, electrostatic precipitators, and alkaline absorption for acidic waste gases. Question 3: What is the comprehensive recovery technology for valuable metals such as zinc, copper, and nickel? Reduction leaching, purification and impurity removal, extraction and separation, electrolysis and electrowinning. Question 4: What is the development history and trends of electrodes in metallurgical processes? Long lifespan, high electrical efficiency, low cost. Question 5: What have you gained from working in the metallurgy process? Cost and benefits must be taken into account ； There are no raw materials that cannot be processed; the process must adapt to the raw materials!