Preparation before using the headbox

Preparation before using the headbox

The headbox has always been considered the heart of a paper machine and plays a decisive role in the quality of the paper. The headbox of a modern paper machine is very automated, but it is still necessary to know how it operates. This article mainly introduces the use, operation and maintenance process of the headbox.

Ready to start

Before the headbox is turned on, the following should be done:

1) Whether there is water in the short circulation system tank;

2) Whether the sealing water of the slurry pump and the pressure screen is turned on;

3) Whether the headbox cleaning spray pipe is turned on;

4) All cleaning holes and inspection holes are closed;

5) Whether the upper lip is in its normal operating position;

6) Whether the lubricating spray pipe is turned on;

7) Whether the thermal compensation system is turned on.

The sizing pump can only be turned on when the following conditions are met:

1) The short cycle system is running;

2) The dilution water circulation system is running and the pressure has been stabilized;

3) The forming part has started to run.