Paper-making drying cylinder and boiler water circulation treatment system and treatment method

Abstract

The invention discloses a paper-making drying cylinder and boiler water circulation treatment system and a treatment method. The paper-making drying cylinder and boiler water circulation treatment system comprises structures such as a raw water tank, a raw water pump, a sand filter, a carbon filer, a security filter, a high-pressure pump, a reverse osmosis device, a reverse osmosis water production tank, a water softening pump, and a first softener, and further comprises a second softener, a softened water tank, a deoxidizer, a water supply pump, an economizer and a boiler. The paper-making drying cylinder and boiler water circulation treatment system and the treatment method disclosed by the invention, have the technical advantages of being good in purification effect, stable and reliablein use property, and the like, meanwhile impurities inside a boiler are reduced to a very large extent, relatively good water treatment purification performance is achieved, and the problem of laterpipeline blocking is avoided.

Description

technical field [0001] The invention relates to the technical field of water treatment equipment in paper mills, in particular to a papermaking drying cylinder and boiler water circulation treatment system and treatment method. Background technique [0002] At present, there is an imported drying cylinder in a papermaking workshop of our company, which has been used for four years. The steam supplied by the boiler enters the drying cylinder (that is, the papermaking drying cylinder). The required pressure is 1.35MPa and the evaporation capacity is 10t / h. The drying cylinder has no external water source. , discharge condensed water through steam separator - water pump - deaerator - feed water pump - economizer - boiler drum. The steam recovered from the top of the steam-water separator returns to the drying cylinder through the heat pump to participate in work again. Condensed return water accounts for 60-70% of the total water consumption of the boiler. Due to the clogging...

AI Technical Summary

Problems solved by technology

Through the feedback adjustment effect of the condensate return water flow in the workshop, it was found that the oxygen discharge pipe of the deaerator was too thin to meet the oxygen discharge conditions after inspection and investigation. The safety valve of the deaerator was opened to increase the oxygen discharge. As a result, the return water flow of the workshop was slightly reduced. Smooth, but not as expected

Obviously, the main structure of the existing treatment system is only composed of a brief structure such as steam-water separator-water pump-deaerator-feed water pump-coal economizer, and its comprehensive water treatment capacity is poor, especially the purification capacity is poor and easy cause subsequent pipe blockage

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