Paper machine system

Abstract

The invention relates to a paper machine system. The paper machine system comprises a first paper machine, a clear white water tower applied to the first paper machine, a second paper machine, a white water tower applied to the second paper machine, and a water supplementing pipeline connected between the clear white water tower and the white water tower, wherein a water supplementing valve is arranged on the water supplementing pipeline; when the liquid level of the clear white water tower is smaller than or equal to 60%, the water supplementing valve is switched off, so that water is not supplemented to the white water tower; when the liquid level of the clear white water tower is greater than 60% and smaller than or equal to 70%, or when the liquid level of the clear white water tower is greater than 70% and a liquid level difference between the two towers is smaller than or equal to 0, the water supplementing valve is switched on at a first opening degree, so that the water is supplemented to the white water tower; the liquid level difference between the two towers is obtained by subtracting the liquid level of the white water tower from the liquid level of the clear white water tower; and when the liquid level of the clear white water tower is greater than 70% and the liquid level difference between the two towers is greater than 0, the water supplementing valve is switched on at a second opening degree, so that the water is supplemented to the white water tower; the second opening degree is greater than the first opening degree. Through the paper machine system, the beneficial technical effect of saving water resources can be achieved.

Description

technical field [0001] The invention relates to a paper machine system. Background technique [0002] Paper machine systems require a large amount of water for paper production operations such as bulk stock. According to the source of water, paper machine production water can be divided into three categories: clear water, white water and clear water. Clean water is the fresh water used in paper machine production, for example, it is taken from natural fresh water, and after preliminary sediment removal, it is pumped to the clean water tower of the paper machine for use. Both white water and clear water are paper machine circulating water. White water is the water taken off from the wire section during the production process of the paper machine. It passes through the bow screen to the white water tank to form white water, and then pumped to the white water tower of the paper machine for use. The clean water is taken from the fiber and filler recovery system of the paper m...

AI Technical Summary

Problems solved by technology

[0003] However, in the existing technology, since the initial design of the paper machine system does not necessarily fit the actual production, there may be a situation where the storage of the white water tower of one paper machine is too small, and the storage of the clean water tower of the other paper machine is too large, which is A large amount of clean water needs to be added to the white water tower, and the excess clean water needs to be discharged directly to the waste water pool, resulting in a waste of water resources

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