Remarkable effect of sodium thiocyanate branch line transformation of Anqing Petrochemical Acrylic Fiber Department

The Acrylic Fiber Department of Anqing Petrochemical has carried out technical transformation for the "bottleneck" of the plant.
Using the idle two-component system equipment, the implementation of the sodium thiocyanate split line transformation project has been running for half a month, and the effect is very obvious
.

The sodium thiocyanate used in the original solution preparation and dissolution process of the acrylic fiber department, the waste silk dissolving station and the precision room of the spinning device is provided by the same feeding system.
Sodium is used separately, and there are disadvantages of "fight for food" and "snatch for food"
.
Once the waste silk dissolving station or spinning precision room uses sodium thiocyanate, the amount of sodium thiocyanate in the dissolving process will fluctuate, and the dissolving ratio will decrease, resulting in insufficient dissolving of the polymer slurry and the formation of "cooked rice", which affects the downstream production process.
production and the stability of the raw liquid quality
.

At this time, the automatic control operator has to manually control and track the dissolution ratio to reduce interference.
However, it is inevitable that the dissolution ratio will decline
.
For expediency, the region requires that the waste silk dissolving post and spinning precision room communicate with the polymerization automation personnel before using sodium thiocyanate, so that they can prepare in advance and minimize the impact on dissolving production.
The value that is lower than the process setting value but still within the qualified range is used as the boundary point, and the aggregated operation team is required to release the number of control points for the dissolution ratio below this value in the regional management WeChat group every day, as the monthly three-base for the operation team.
a basis for examination
.

In response to the "bottleneck" in the production of this device, the technicians of the Acrylic Fiber Department actively tried to find a way.
They turned their attention to the idle two-component system equipment, and made use of the idle storage tanks, heaters and pipelines, from the total storage of sodium thiocyanate.
A separate sodium thiocyanate receiving line is added to the tank, and a new hot sodium thiocyanate feeding system is established, which is specially used for the waste silk dissolving post and the spinning precision room
.
The original hot sodium thiocyanate feeding system was designed to provide materials for the dissolving process.
The two feeding systems operate independently and do not interfere with each other.
The original "big pot rice" has become the current "small stove"
.

Since the new sodium thiocyanate system was put into use on July 12, the optimized production effect has been remarkable, and the number of control points with the dissolution ratio of each shift lower than 0.
77 has basically dropped to zero from the original average of four or five
.