Sail across the sea

Chapter 24 So Strong

"Your plan can improve the efficiency by at least 30% compared with the design of the Ministry of Chemical Industry. Xiao Zhou, you are not kidding us!"

Ji Yulin almost jumped up.

Small nitrogen fertilizer ammonium to urine is the hottest topic in the current national fertilizer system.

The localization of the 30-ton synthetic ammonia plant is indeed underway, but everyone in the industry knows that this cannot be done in a year or two, and even a little bit of success within ten years is considered a miracle.

There is no other reason. The technology required for large-scale ammonia synthesis far exceeds China's existing industrial level.The country is now adopting the "one purchase and three cooperation" approach, that is, the purchase of foreign patented technology, cooperative design, cooperative procurement, and cooperative manufacturing.

The last of these, co-manufacturing, is a big problem.The so-called four major centrifugal compressor units in large-scale synthetic ammonia, namely air compressors, natural gas compressors, synthetic gas compressors, and ammonia compressors, have very high requirements on materials and machining. China's machine tool industry is far behind foreign countries. However, restricted by the Batumi agreement, China is also unable to import the most advanced machine tools from abroad, which has resulted in the inability to process the precision components required for several major compressors and can only rely on imports.

Mechanical matters cannot be solved by the chemical industry department's efforts. We can only wait for the mechanical industry to catch up slowly.It is not an exaggeration to say that this process will take 30 years. Before that, no matter how many ideas you have, it is in vain.

If the localization of large chemical fertilizer plants cannot be done, we can only focus on small chemical fertilizers.In fact, until the 21st century, small nitrogen fertilizers still accounted for half of China's nitrogen fertilizer industry. There are historical reasons for this.

The development direction of small nitrogen fertilizer is urea, which is also the consensus from the Ministry of Chemical Industry to the grassroots fertilizer factories.To convert more than 1000 small nitrogen fertilizer plants producing ammonium bicarbonate into urea plants is a very large project and requires great care.

In the past few years, the Ministry of Chemical Industry has organized a group of experts to repeatedly consider the solution of small nitrogen fertilizer and ammonium to improve urine, and proposed several different designs, and is also conducting pilot projects in some enterprises to test the advantages and disadvantages of each solution.These plans were formed after a lot of tempering, and Ji Yulin also participated in the demonstration of some plans.

He is convinced that while each program has room for improvement, experience needs to be gained in practice.However, to say that an engineer of a county-level chemical fertilizer factory can come up with a better plan and improve the efficiency by even 5% is a fantasy.

But a strange thing just happened. Zhou Xiaoyun came up with a plan and claimed that it could increase the efficiency by 30%. Is this the rhythm of not taking the experts from the Ministry of Chemical Industry seriously?

Ji Yulin had enough reasons to believe that Zhou Xiaoyun was talking nonsense. The only thing he couldn't figure out was how this girl was stimulated to say such absurd things.

Zhou Xiaoyun had already pushed her plan in front of him, and he decided to take a look at the plan before seriously criticizing Zhou Xiaoyun.

"Let me see, your plan uses the full circulation method of aqueous solution. Isn't this the plan of the Ministry of Chemical Industry?...Hey, what's going on with your design? You canceled the pre-distillation tower and replaced it with this ..., this should be the idea of ​​the medium-pressure urination process, you have combined the two ideas together, wonderful! wonderful! It's really wonderful!"

After reading a few pages, Ji Yulin couldn't help applauding, with an ecstatic expression on his face.

"Ji Gong, are you saying that Xiao Zhou's design is really unique?" Xu Ying asked tentatively.

"It's not unique, but... a revolutionary breakthrough!" Ji Yulin did not hesitate to praise, "Director Xu, let me explain to you that she proposed a brand new design in the middle voltage decomposition link. , but fully considered the conditions of the equipment. She replaced the pre-distillation tower with a new sub-column, and realized self-stripping with ammonia evaporation, which can greatly reduce the use of steam and improve thermal efficiency.

"The design of this one-sub-tower is similar to the current very mature carbon dioxide stripping tower, and can use the mature experience and technical achievements of equipment manufacturing companies. Xiao Zhou made a calculation. Only this design can make every ton of urea The steam consumption saves about 200 kg.”

"So, Ji Gong thinks Xiao Zhou's plan is feasible?" Xu Ying asked.

"Not only is it feasible!" Ji Yulin said, "Director Xu, what I just said is just one of her designs. There are more than a dozen. I’m not sure if all of these innovations can withstand scrutiny, but I think at least half of them should be feasible, and they are definitely much better than the current plan of the Ministry of Chemical Industry.”

"It's so strong!" Xu Ying was shocked.

She is also from a production background, and technically inferior to Ji Yulin, but at least she can understand what Ji Yulin said.According to what Ji Yulin said, the plan proposed by Zhou Xiaoyun far exceeds the current plans of the Ministry of Chemical Industry.As a result, the Ministry of Chemical Industry may have to follow Zhou Xiaoyun's plan to promote ammonium urine modification.

Canghai Chemical Fertilizer Factory, as the proponent of the new plan, has some reasons for requesting to become a pilot enterprise of the Ministry of Chemical Industry for ammonium urine modification.

What Xu Ying thought of was far more than this.Maolin Province's economy is underdeveloped, and it is almost at the bottom of the eastern provinces.The Ministry of Chemical Industry has always paid little attention to Maolin Province. When the leaders of the department go to the Ministry for meetings, their seats are more sidelined than those of other provinces.

If Maolin Province came up with an ammonium urine modification plan that overwhelmed the plan made by so many experts organized by the Ministry of Chemical Industry, would the Ministry of Chemical Industry still be able to put on airs in front of Maolin Province?When colleagues from other fraternal provinces meet people from Maolin Province, don't they also have to put a smile on their faces?
If you have the ability, don't use the plan proposed by our Maolin Province.

If you are capable, let the engineers in your province come up with a high-end plan.

"Xiaoyun, you really dropped an atomic bomb quietly!" Xu Ying looked at Zhou Xiaoyun and praised.

"Why, Director Xu, Ji Gong, you mean that Zhou Gong's plan is feasible, and our factory can really start ammonium urine reform right away?" Qiu Guoliang asked.

Xu Ying was silent for a while, and said: "Director Qiu, Xiao Zhou's plan, just now Ji Gong has seen it, and thinks it is indeed very good, and should be able to get the attention of the Ministry of Chemical Industry. However, will the Ministry of Chemical Industry be for this reason, It is difficult to say that the Canghai factory was selected as the pilot factory for ammonium urine modification. After all, there are still many issues to be considered by the Ministry, and we, as subordinates, cannot make wild guesses.

"However, considering the existence of such a possibility, the two coal consumption control work of the Canghai Plant can be suspended temporarily. In case the Canghai Plant becomes a pilot enterprise, the previous investment in equipment update will be in vain.

"I still need to report this matter to the party group of the department. However, there is one thing I can express in advance. The proposal proposed by Xiao Zhou will definitely be rewarded by the department."

(End of this chapter)