ES2242535A1 - Manufacturing method for construction boards, involves drying starched paper of predetermined humidity, crushing and then mixing paper with plaster dust, and adding water into mixture to form paste - Google Patents

Abstract

Starched paper with humidity of between 40 and 50 percent is dried at a temperature between 90 and 130 degrees Celsius, and then crushed. The crushed paper is dried again and is mixed with plaster dust. Water is added to the mixture to form paste. The paste is molded into shape and further dried, forming the construction board.

Description

Plate manufacturing procedure for building.

Object of the invention

The present invention relates to a construction plate manufacturing process, by example, for ceilings, interior partitions and applications Similar.

Background of the invention

At present, the plates used in the interior construction, for example, in partitions and ceilings, they have to be resistant, but at the same time light so that facilitate assembly.

On the other hand this type of material if it is not Lightweight have high transport costs that impact in the price of the work.

Usually the plates used today in day presents a problem not only of resistance and weight but for the materials that are used in its manufacture do not result economic.

Description of the invention

The process of the invention is simple to perform in this procedure is also used as material fundamental, pulp, which is a recyclable material and economic.

The use of paper pulp allows to obtain a Light and economical plate, solving the problem fundamental that presents the plates used in ceilings and in interior partitions.

According to the invention, the procedure to manufacture plates for construction includes:

- the use of recycled paper pulp or not that it contains a humidity of approximately between 40 and 50% in weight.

- dry the paper pulp at a temperature between 90 and 130 ° C.

- shred the resulting paper and dry in a knife shredder machine whose axis rotates at 400 revolutions per minute, obtaining a homogeneous and textured product powdery

- mix the shredded and powdered paper with plaster in a paddle mixer, whose axis rotates at 400 revolutions by minute until you get a homogeneous mixture.

- add water to the mixture obtained until get a paste, operation that is done in the same mixer, and later the paste is introduced into a mold and it is shaped the plate.

- the wet plate once formed is demoulded and it dries naturally until its setting.

Description of a practical embodiment of the invention

For the manufacture of plates for construction of roofs and interior partitions the method of the invention

The procedure involves using paper pulp. recycled or not.

This paste is dried at a temperature comprised between 90 and 130 ° C.

The dried paper pulp is then crushed in a knife crusher whose shaft rotates at 400 revolutions by minute obtaining a powdery and homogeneous product.

In a paddle mixer, whose shaft rotates 400 revolutions per minute, shredded pulp with plaster and mix in a homogeneous manner then adding to Mix the water until you get a paste.

This paste is cast in a mold in which it conforms the plate, which once it has been demolished, dries out of natural way until its setting.

Describe sufficiently the nature of the invention, as well as how to perform it in practice, should be noted that the provisions indicated above and represented in the attached drawings are susceptible to modifications of detail as long as they do not alter the principle fundamental.

Claims (1)

1. Procedure for manufacturing construction plates; preferably roofing plates and interior partitions; characterized in that it comprises: - the use of pulp, recycled or not, which It contains a portion of moisture between 40 and 50% by weight. - dry the paper pulp at a temperature between 90 and 130 ° C. - shred dry paper pulp in a machine knife crusher, whose axis rotates at 400 revolutions by minute obtaining a homogeneous and textured product powdery - mix the part of shredded and powdered paper with plaster on a paddle mixer whose shaft rotates to 400 revolutions per minute until a homogeneous mixture is achieved; Y add water to the mixture until achieved by the action of the mixer a paste that is subsequently introduced into a mold in which make up the plate. - the shaped plate is demoulded and dried natural way to get its setting.