Weir pond and pulp fluid box applying same

Abstract

Disclosed is a weir pond of a pulp fluid box. The weir pond comprises side walls, a base plate and a cover plate. A space containing pulp is formed by the side walls, the base plate and the cover plate jointly. At least one through hole is formed in the cover plate. A pipeline extending from the exterior to the interior of the weir pond is arranged inside each through hole in a penetrating mode. The end, inside the weir pond, of each pipeline is connected with a nozzle. The nozzles can spray the side walls so that the pulp attached to the side walls can be removed. The invention further provides the pulp fluid box applying the weir pond. According to the weir pond and the pulp fluid box applying the weir pond, the nozzles are arranged to spray the side walls of the weir pond, it is ensured that the phenomenon that slim pulp is stuck to the side walls of the weir pond due to the fact that the liquid level is increased and decreased is avoided, and the probability that the pulp is polluted is decreased; in addition, the weir pond can conduct spraying when a paper machine runs and does not need to wait for stopping of the paper machine.

Description

technical field [0001] The invention relates to a weir pool of a headbox and a headbox using the same. Background technique [0002] The existing headbox usually includes a slurry inlet main pipe, a slurry distributor, a weir tank and a weir plate arranged in sequence, and the end of the weir plate forms a lip plate mouth. The slurry enters the headbox from the slurry inlet main pipe, then passes through the slurry distributor, weir pool, and weir plate in turn, and finally comes out from the lip plate mouth and is transferred to the forming net. Since the liquid level in the weir tank is not necessarily the same all the time, slurry will adhere to the weir tank wall. If the slurry adheres to the wall of the weir pool for a long time without being washed down by the slurry flow, it will rot and breed bacteria to form putrefaction. At the same time, since the headbox cannot be disassembled when the paper machine is running, it is usually impossible to remove the pulp immedi...

AI Technical Summary

Problems solved by technology

At the same time, since the headbox cannot be disassembled when the paper machine is running, it is usually impossible to remove the pulp immediately, and the paper machine can only be disassembled to clean the headbox when the paper machine stops running.

However, the fresh pulp is polluted by decaying pulp when it passes through the headbox, which will cause stains or harmful colonies in the paper towels produced, which will affect the quality of paper products.

Images