Waste paper regeneration environmental protection device and method

Abstract

The invention relates to papermaking method and device, in particular relates to waste paper regeneration environmental protection device and method. The waste paper regeneration device is provided with a hydraulic pulper, a first stock tank, a first desander, an inclined sieve, a second stock tank, a pulping machine, a third stock tank, a header box, a fourth stock tank, a second desander, a pressure sieve, a paper machine, a boiler, a reaction tank and a wastewater filter tank. By adopting the waste paper regeneration method and device, a closed production and water circulation mode is formed. Compared with the prior art, the invention has reasonably configured device system composition, higher degree of automation, convenient operation and higher pulping efficiency, can recycle afterheat and wastewater after being processed into purified water, realizes the energy-saving and environmental-protection effect, obviously improves the product quality through detection and can regularly clean sludge and coal ash in the wastewater filter tank to be used as field fertilizers, thereby changing waste into valuable without pollutant emission.

Description

technical field [0001] The invention relates to a papermaking method and equipment, in particular to waste paper recycling and environmental protection equipment and a method. Background technique [0002] my country is a country with a shortage of forest resources. At present, my country's annual demand for paper products is about 65 million tons, and it is still growing. It needs to consume a lot of wood and waste paper to regenerate to meet the demand for paper products. At present, my country's waste paper utilization rate About 38%. With the continuous development of society, the continuous expansion of demand for paper products, and the continuous reduction of resources, the status of my country's waste paper recycling industry will continue to improve, but the traditional waste paper recycling equipment and methods are not perfect enough. The utilization rate is low, the quality of recycled paper products is not high, and the wastewater pollution is serious. Since most ...

AI Technical Summary

Problems solved by technology

[0002] my country is a country with a shortage of forest resources. At present, my country's annual demand for paper products is about 65 million tons, and it is still growing. It needs to consume a lot of wood and waste paper to regenerate to meet the demand for paper products. At present, my country's waste paper utilization rate About 38%. With the continuous development of society, the continuous expansion of demand for paper products, and the continuous reduction of resources, the status of my country's waste paper recycling industry will continue to improve, but the traditional waste paper recycling equipment and methods are not perfect enough. The utilization rate is low, the quality of recycled paper products is not high, and the wastewater pollution is serious. Since most of them are manually operated at present, the pulp is often broken or the slurry overflows the pool surface due to untimely operation. Adding filter aid to the slurry requires manual stirring to mix the filter aid and the slurry evenly, which is difficult to achieve automatic control, the product quality is not ideal, and the operation is unsafe

Images