Those who understand calcium carbide technology, come and discuss it!
Thread Content
It’s really unfortunate that, with such a large scale in our calcium carbide industry, our technology remains behind that of foreign countries after all these years. I’m not an expert, but I’ve thought of some questions and would like to discuss them with everyone. First, the most basic question: why are calcium carbide furnaces round? I asked a few people, but they couldn’t answer. I understand that the electric field is circular, so the furnace is also circular. The conditions for producing calcium carbide are temperature and a power plant of sufficient capacity. I wonder if anyone in China has conducted specific research on the way energy works inside electric furnaces. Does that electrode have to be inserted into the furnace mouth? Can the way such electric fields function actually be changed and optimized? Could we create a large cylinder for the bedroom, with electrodes approaching from the left and right sides? I hope some experts can see this and study it.
The calcium carbide industry causes severe pollution. Apart from engineers who work in technology, I’m afraid few professors in universities are willing to engage in this. Now everyone knows that fine chemicals are profitable, and biotechnology is booming. Very few people are actually engaged in practical technology development, unless a factory funds the research. I’m not very familiar with the calcium carbide industry, but I know that for the production of VCM using the calcium carbide-acetylene method, most manufacturers in China still use technology from the 1960s. In that decade, Chinese scientists improved upon Soviet technology, employing a freezing method for dehydration. It belongs to internationally leading technology; many factories have now made improvements to this technology, but the majority of manufacturers across the country still use the old technology. New technologies have not yet been widely adopted; this is the current situation in China. New technologies are difficult to disseminate: firstly, the investment may be too high; secondly, older technologies can still be used; thirdly, major changes to the technology require a long period of downtime. Factories are profit-driven. :L
Why are calcium carbide furnaces round? It is to improve utilization. There were also rectangular ones in the past.
I’ve learned about it; currently, it’s the circular calcium carbide furnace. There are still dead zones; for example, in the case of three electrodes, there are areas where heat cannot reach. Could that part be replaced with refractory bricks?
Our country also has many new technologies in the field of mineralization furnaces, and calcium carbide furnaces are a type of mineralization furnace. Why have many new technologies been widely applied in steelmaking and other metal smelting processes, while there has been little innovation in calcium carbide furnace technology over the years? Personally, I think the calcium carbide industry is too small in scale, with production facilities scattered across various locations; as a result, companies in this industry have poor profitability, and many research institutions are reluctant to get involved in it ； Calcium carbide manufacturers are also reluctant to invest in research and development for innovation. However, we are pleased to see that we are currently working with universities and research institutions to innovate electric arc furnace technology. I believe that energy-efficient calcium carbide furnaces will surely be developed successfully in the near future; let’s wait and see!