Zhang Yi took the sulfuric acid slag handed over by Chen Jianming after treatment, the finished product is already honeycomb at this time, the surface is densely packed with holes, this is desulfurization after sintering, the sulfur inside the sulfuric acid slag generated gas sulfur dioxide overflow, and the original sulfur-containing position is left with holes.

Zhang Yi took a closer look, experienced sintering workers, only need to look at the color of the finished product and the uniform distribution of honeycomb holes, can judge whether this kind of ore is burned well, Zhang Yi has done countless such experiments in the laboratory, and the experience is no worse than that of old workers.

And Zhang Yi's finished product, from the appearance of the full line of production requirements, if Zhang Yi is not mistaken, this batch of processed sulfuric acid slag can enter the blast furnace ironmaking.

Zhang Yi said: "Second uncle, has the finished product been sampled and tested?" ”

Chen Jianming said: "It has been tested, all indicators have been qualified, and the main sulfur and phosphorus have been removed to meet the requirements of blast furnace ironmaking." ”

Zhang Yi threw the sample back into the silo, clapped his hands and said happily: "That's really good, this is the most important indicator in the early stage, and only when it can enter the blast furnace can it reflect the value of these sulfuric acid residues." ”

Zhang Yi is most concerned about the sulfuric acid residue treatment technology, his first goal after rebirth is to apply this technology well, and now the sulfuric acid residue is treated well, which can be regarded as the completion of his first goal.

The treatment of sulfuric acid slag is the basis for making money after the smelter is re-put into operation, and it is also the core link of the application of low-input, high-output technology.

The subsequent blast furnace steelmaking and converter ironmaking processes are similar to those of other steel mills, and there will be some differences in products until the final hot rolling process.

Zhang Yi also has a goal, that is, to build the most advanced special steel production base, which requires the smelter to have a strong level of tungsten steel production technology, the current situation, the smelter can only produce ordinary steel, tungsten steel has to be studied by Zhang Yi in the laboratory.

However, the relevant experiments are also fast, as long as Wu Hengxing solves the problems in the laboratory, Zhang Yi can not only complete the experiment of tungsten alloy armor-piercing bullets in the laboratory, but also make special tungsten steel.

"Second uncle, did the first batch of processed sulfuric acid slag enter the blast furnace for ironmaking?" Zhang Yi asked, pointing to the finished slag piled up in the silo.

No matter when the tungsten steel project is launched, now the smelter is going to start production and operation, after all, after the equipment starts to operate, it takes a lot of money to maintain the operation of the smelter every day, if it can't make a profit, then Zhang Yi's money will not be able to bear it for a period of time.

Now the sulfuric acid slag is used to produce some construction steel, such as channel steel, I-beam, steel bar and so on.

The cost of smelter production is much lower than that of other steel mills, after all, the raw materials of iron ore are as cheap as giving away for free, and the price of steel sold is similar to that of other steel mills.

Chen Jianming said: "The blast furnace workshop is being commissioned, the finished slag has been transported, and the trial production can be completed after the commissioning, and the whole set of equipment has been connected in the morning, and the mainstream equipment has been kept intact in the factory before, we just added some dust removal fans and other supporting facilities, and these new equipment will be run to try." ”

"Since we want to operate, we can produce with materials, which can not only save time, but also look at the operation of the equipment, and we can judge whether there is a problem in the production process by the quality of the steel produced." Zhang Yi waved his hand and directly slapped the new equipment for production.

Generally speaking, some new equipment to run, will be idling for a period of time, observe their operation, if there is no problem will be with the material production, now Zhang Yi directly asked to bring the material, in fact, is also more confident in the whole process.

He has participated in the design of this process on site, and he has experience in this area, otherwise he would not just design the plant equipment process, and dare to produce directly, you know, the cost of equipment operation is very high.

"Okay, then let's go to the blast furnace workshop and have a look." Chen Jianming took Zhang Yi to the blast furnace ironmaking workshop.

Zhang Yi divided the smelter into four large plants, sulfuric acid slag treatment plant, tungsten concentrate treatment plant, tungsten special steel production plant and ordinary steel production plant, each plant has several small workshops, and the supporting facilities are very complete.

The first to be put into production is the sulfuric acid slag treatment plant and the ordinary steel production plant, which are connected to each other and can form a complete production process.

The other two factories are not yet in production, and Zhang Yi wants to make tungsten steel his business card, but the development of the smelter cannot be rushed, and it always needs a process.

As soon as Chen Jianming and Zhang Yi arrived at the blast furnace workshop, Rao Guangyuan greeted them.

Wearing a red hard hat, sweat beads on his face kept dripping down, and most of the clothes behind his back were soaked, Rao Guangyuan panted and said: "Boss, the two leaders of the factory director are here." ”

Zhang Yi said: "Chief Engineer Rao has worked hard, how is the equipment running?" ”

The blast furnace in front of him is 37 meters high, with a volume of nearly 2,000 cubic meters, with 3 iron mouths and 30 tuyeres.

Rao Guangyuan said with a smile: "Hard work can not be talked about, the equipment is running well now, we have put the equipment up and running one by one, now we only need to run empty, we can end it in 3 days, and then we can put it into trial production." ”

"There's no need." Zhang Yi said directly, "The equipment has been inspected, and the commissioning report is confirmed to be qualified, and we will directly put into production, and we must produce the first batch of steel as soon as possible." ”

"This ......" Rao Guangyuan thought to himself, is Zhang Yi too hasty like this, after all, the sulfuric acid slag process has not been used to produce steel before, and I don't know if there will be any drawbacks in steelmaking.

Chen Jianming patted Rao Guangyuan's shoulder with a smile and said, "Zhang Yi said how to do it, you just follow the arrangement, there is absolutely no problem." ”

Chen Jianming has established Zhang Yi's status in the smelter more than once, where Zhang Yi has the absolute right to speak, and he will not be tied up in doing things, he can give full play to his talents.

Rao Guangyuan had never been in contact with Zhang Yi before, but he didn't dare not listen to Chen Jianming's words, he had also been in Qingshan Smelter for more than ten years, and he had developed a habit of obeying the arrangement, and Chen Jianming's personality charm was also there, and the employees in the factory obeyed him.

Even if Chen Jianming collapsed the factory later, but in the past ten years, Qingshan Smelter was definitely the best welfare treatment among similar factories in Jiangcheng, and Chen Jianming was willing to take out a large part of the factory's profits as a welfare for employees, so that employees would naturally be more motivated.

"Okay, then I'll get ready for feeding right away." Since the two leaders have spoken, Rao Guangyuan immediately agreed.