Anxian Lai: A scientific rookie who counts "stars"

In early December, after being awarded the "Excellent Graduate" of Baling Petrochemical Company in 2022 and winning the first prize in the company's 10th Youth Scientific and Technological Paper Competition, Li Anxian, a process technician of the polyamide plant scientific research post of Baling Petrochemical caprolactam department, was the first to complete the project of "Research and Application of Nylon 6 Crystal Point Formation Mechanism and Control Method for Membranes", which reduced the number of crystal points of the product and extended the production cycle of the device, and was awarded the third prize
of Baling Petrochemical Science and Technology Progress Award in 2022.

In August 2020, after graduating from graduate school, Li Anxian joined Baling Petrochemical and entered the polyamide plant research group, where she participated in two company-level key research projects
under the tutelage of senior engineer Tang Chenghua.
Faced with polymer materials that she had not been exposed to before, she felt a lot of pressure
.

In order to quickly adapt to the post, she learned to do experiments with her supervisor during the day, learned the device process from the masters of the team, and taught herself a polymer material course
at night.

Two months after joining the scientific research position, Li Anxian cooperated with the development and research of film special materials, and needed to evaluate the optimal type of plastic lubricant used under different working conditions and the best dosage
.

Seeing dozens of different plastic lubricants in the laboratory, Li Anxian tried them one by one, consulted a large number of literature, classified all lubricants according to structural properties, formulated orthogonal experimental protocols, and completed experiments with the help of the team to obtain real and reliable experimental data
.

"Xiao Li has a goal and a method, reduces a lot of trial and error, shortens the experimental cycle, and explores the mechanism of action of different types of lubricants in new products, laying a good foundation
for subsequent research and development.
" Wu Qianxin, the leader of the research group, praised
.

In 2021, customers reported that nylon products for caprolactam membranes were too large and not stable enough compared with similar products in the market, and the products once faced the crisis of losing the market, and it was urgent
to solve the crystal point problem.
In August of the same year, Li Anxian took the initiative to lead the implementation of the project "Research on the Formation Mechanism and Control Method of Nylon 6 Crystal Point for Membranes"
.

As the project leader, Li Anxian organized the members of the research team to brainstorm regularly, link the working mechanism of production and marketing research, and formulate a detailed action plan
.
On this basis, she went deep into the equipment and team to track the impact
of process fluctuations and adjustments on crystal point formation.

When predicting the impact of dust from the production device on the crystal point of the product, Li Anxian immediately proposed the idea of dust separation of the product, analyzed the dust structure, and cooperated with the process technician to carry out experiments
.
After discussion by the research group, measures such as diluter separation of product dust were adopted, and the number of crystal points was effectively reduced
.

There is a table pasted in front of the office of the polyamide device research group, on which Li Anxian recorded in detail the changes of the crystal points of various types of nylon chips in the past year
.
During this period, she organized more than 40 brainstorms; More than 1600 samples were evaluated for blown film crystal points, which took about 900 hours.
Microscopic observation
of the structure of 285 crystal points.
The quantitative detection and evaluation of each sample crystal point has more than 10 links, although the process is very cumbersome, but they are not "discounted"
.

"The 2-meter-long nylon film has hundreds of crystal dots over 0.
5 mm in size, which need to be compared one by one under the light, like looking up and counting the stars in the sky
.
" Colleague Wang Tian said, "Xiao Li sometimes counts for an afternoon
.
”

In June this year, the research group successively found various reasons for the formation of crystal points and further implemented the corresponding control scheme
.
"At present, the number of crystal points in the product has been reduced by 70%, and the production cycle of the solid-phase viscosity enhancement unit has been extended by 30%
.
" Li Anxian introduced
.
The relevant control scheme of the project will be applied to the caprolactam industry chain relocation and upgrading transformation development project
under construction.