6th 13 bars pressure wood chips boiler Agent


WO2003046276A1 - Removal of inorganic elements from wood ...

In a process of treating wood chips for reduction of the concentration of undesirable inorganic elements prior to cooking in a production line for chemical pulp the wood chips having entrapped air are treated with an aqueous leaching liquor at elevated temperature and pressure followed by draining at atmospheric pressure or below atmospheric pressure the pressures being controlled to ...

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US2975096A - Impregnation of wood chips - Google Patents

The bars 25 at this point define a gradually reducing area of the chamber 13 with the result that a progressive compressive force is applied to the material advanced by the worm 32 the air contained therein and liquids contained therein being gradually exhausted or expelled and passing out of the press between the bars 25.

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RU2440449C2 - Methods and devices to boil lignocellulose ...

FIELD: textile paper. ^ SUBSTANCE: for preliminary chemical treatment of wood chips a non-compression reservoir is used such as a boiler then there is a grinding device to break previously treated wood chips into bundles of fibres which are then washed prior to chemical treatment of high consistency. The boiler may be an ordinary tank used for chemical boiling of wood with or without ...

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