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Deflaker With the development of modern paper industry, waste paper recycling (waste paper recovery and recycling) there has been universal, one can reduce the cost of production, two can reduce environmental pollution, saving equipment investment, improve resource utilization, therefore, timely follow-up of advanced paper handling equipment is particularly important. As waste treatment system (crushing equipment, screening purification equipment or heat dispersion) in the subsequent ease slurry equipment, is a modern paper production in one of the indispensable equipment, its purpose is to waste by crushing, screening, purification or heat dispersion of the paper, not completely disappear without cutting the fiber agglomerations or damage and reduce the strength of the premise dissociation or dispersed into a single root, wetting, rather fibrosis in order to reduce waste disposal system can consumption, increase production capacity and quality of the waste paper pulp, but also conducive to the subsequent pulping, papermaking.40966
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A modern stock preparation plant for the manufacture of paper consists of a sequence of treatment processes Including size reduction and screening of the raw materials. The exact process depends on the type of stock and the characteristics of the paper to be produced. One of the requirements of stock preparation is that the stock should be flake-free, when it reaches the paper machine.
If the stock is produced from dry raw material, which could be either chemical pulp, waste paper or broke, the raw material is first broken down with water in a pulper, until a pumpable suspension Is reached. In a modem plant, it is not economic to reduce the flake content In the pulper beyond this point. The flakes are reduced to Inpidual fibres under optimum working conditions in the deflaker. This method of operation achieves considerable power saving.
The well-known principle of the "deflaking " was the basis of design for the Escher Wyss deflaker, which has been developed for the special requirements of the deflaking process. Over two thousand Escher Wyss deflakers have been supplied to the paper industry to date. In operation, they have proved robust machines, with which any deflaking problem can be reliably and safely solved with the maximum efficiency.
• Complete deflaking
• Simple to operate
• Suitable for a wide range of applications
• No reduction in freeness
• Power saving
1) Fillings for fine-deflaking of stock having very good flow characteristics.
2) These fillings are used for fine-deflaking of stock having good flow characteristics, i. e. spruce sulphite and short-fibred pulp, groundwood, pulp from annual plants, madline broke and sorted waste paper.
3) These five somewhat coarser fillings are used for deflaking of long-fibred pulp and waste
paper.
4)Coarse fillings for deflaking of long-fibred sulphate pulp and difficult-to-deflake waste paper. They are used for high through-put rates and reduced treatment.
5) Fillings for pre-deflaking of waste paper prior to screening and for handling waste paper which has had little treatment In the pulper.
The Esdler Wyss deflaker has many applications
in the pulp and paper Industry:
• Deflaking of fibre stock
• Separation of fibres from contraries, especially in waste paper preparation
• Deflaking of broke
• Treatment of groundwood rejects
• Treatment of rejects from screens In waste paper preparation (special fillings)
• Deflaking of pulp from annual plants, after disintegration
• Preparation of coating colors
In addition, the Escher Wyss deflaker can be used successfully In other branches of the Industry, for example In the manufacture of viscous fibre, or generally in the chemical Industry of dispersion, homogenisation, mixing and preparing emulsions.
High frequency relief machine
Since reform and opening up, China's paper industry generally experienced about 20 years of strategic adjustment period from the end of the last century to order people into the optimization of the industrial structure and the period of rapid growth: in the raw materials, technology, enterprise scale industrial area in tremendous changes , and set up my paper from "small, soil, dirty," "distorted the state to a modern-Paper path of development changes. to 1998 of the new statistical standards, is in the 1998 to 2004 period, paper and cardboard yield an average annual rate of 15.15%, and 20 of its previous growth rate of about 10 per cent in 2004, before 10 papermaking enterprises on production and sales to the degree of concentration of people were 18.38% and 21.85%, and in 1998 this two indicators are below 8%; At present, there are a number of the world's advanced technology and equipment standards of corporate and industry technical update rate is accelerating the trend in the national policy support, integration and sustainable development of forestry and paper industry will become China Paper the mainstream of development. our paper and paperboard production, consumption, both Paper has become the world's second largest country, is beginning to embark on a rapid and sustainable path of development and modernization.