Abstract:
The invention relates to a method and apparatus for removing water in paper-making, wherein paper is formed by feeding pulp to a wire section through a headbox, a web is formed at the wire section and the web is led from the wire section to a drying section through a press section. According to the invention, dewatering the web is enhanced and moisture content of the paper is reduced by removing water from the web that is being formed by at least one static shoe press unit, the static shoe press unit being selected from the following group:a) using at least one static shoe press unit in conjunction with the wire section; b) using at least one static shoe press unit between the wire section and the press section; c) using at least one static shoe press unit in conjunction with the press section; d) using at least one static shoe press unit between the press section and the drying section; e) using at least one static shoe press unit in conjunction with the drying section; and/or f) using at least one static shoe press unit in conjunction with calendering.
Abstract:
A versatile method for the manufacturing of a natural fiber composite is provided, and a product thereof. The method, in accordance to the preferred embodiment, comprises crush-or impact grinding of fibrous feedstock, followed by classifying, mixing with diluting and/or bonding agent, optional foaming and shaping of the end product. A composite product manufactured by said method is provided. Treatment of fibrous feedstock by torrefaction may be utilized prior to crush-grinding in order to provide manufactured composites with novel properties. Natural fiber composite materials thus produced retain heat-, sound-and/or fire- insulating properties and may be utilized in different industries from automotive to decorative. The method is employed to re- utilize waste, recycled and side products of various industries, including forest, chemical-, mineral-and agro-industries.
Abstract:
A versatile method for the manufacturing of a natural fiber composite is provided, and a product thereof. The method, in accordance to the preferred embodiment, comprises crush-or impact grinding of fibrous feedstock, followed by classifying, mixing with diluting and/or bonding agent, optional foaming and shaping of the end product. A composite product manufactured by said method is provided. Treatment of fibrous feedstock by torrefaction may be utilized prior to crush-grinding in order to provide manufactured composites with novel properties. Natural fiber composite materials thus produced retain heat-, sound-and/or fire- insulating properties and may be utilized in different industries from automotive to decorative. The method is employed to re- utilize waste, recycled and side products of various industries, including forest, chemical-, mineral-and agro-industries.
Abstract:
The invention relates to a method and apparatus for removing water in paper-making, wherein paper is formed by feeding pulp to a wire section (2) through a headbox, a web is formed at the wire section, and the web is led from the wire section to a drying section (4) through a press section (3). According to the invention, dewatering the web is enhanced and moisture content of the paper is reduced by removing water from the web (5) the is being formed by at least one dewatering unit (8) comprising a belt circulating member (10) with a belt (11) and at least two rolls (12) over which the belt is arranged to pass.