BRPI0804194A2 - waste processing process resulting from processed wood and billet - Google Patents

Abstract

Refers to the Patent for Invention process of waste processing of processed wood, through sequence of specific industrial operations with a mixture of waste originating from distinct industrial processes that form standardized billets (1) bringing advantages of saving wood, preserving forests, avoid deforestation, increase the industrialization rate and lower manufacturing costs with low investments.

Description

"PROCESS FOR THE USE OF PROCESSED WOOD AND TARUGORESULTANT WASTE".

The present invention refers to the process of making use of processed wood residues, by means of specific industrial operations with a mixture of residues originating from different industrial processes that form billets or standard blocks, bringing advantages of saving wood, preserving forests, avoiding deforestation, increasing industrialization index and lower manufacturing costs with low investments.

As is well known to timber engineering technicians, processed wood residues such as MDF manufacturing residues, agglomerate manufacturing residues and sawdust were initially burned. Later technologies emerged for use, such as wood flour which when mixed with polymers are extruded, the case of agglomerate waste that is pressed into specific furniture parts such as TV cabinets, packaging cradles and pallet feet. more recently, the case of ecological panel obtained from furniture waste also by pressing. These technologies have limitations and disadvantages of not allowing mixtures of waste and not accepting the presence of dirty melamine plastic contaminants.

Searching the Brazilian patent bank, we found some patent applications with some proposals for the use of noble wood leftovers:

a) Brazilian Patent Application PIO 103200-3 which discloses solid waste recycling technique with the purpose of using solid waste such as leather, plastic paper, rubber, sawdust, properly ground woven wood and adding 40% starch in relation to the weight of the waste. After mixing, water is added at 30 (thirty degrees) and after 20 (twenty) minutes mass with many uses is obtained and in various forms depending on the equipment can be used as brick plates and coatings; and

b) Brazilian Patent Application PIO 103200-3 which discloses the process of obtaining a lighter agglomerate composition for barbecue grills and the like, agglomerated paraffin compound with wood grain, paper or other crushed residue melting the paraffin homogeneously mixing the product and presented together with a small sache containing ethyl alcohol for the purpose of providing instant ignition of the igniting product.

Doing research in international patent database, we found some patents with proposals for the use of noble wood leftovers, we found the following patents:

A) US Patent no. No. 5,374,474 discloses a composite essentially composed of newspaper recycled fibers and a thermosetted polyisocyanate resin, about 0.125 to about 1.00 inch thick, being formed from a pressure of about 900 psi to 1000 psi, and having a density of 50-75 pounds per cubic foot, having internally pressed resin fiber of at least 190 pounds per square inch, with a resin content of from about 2% to about 4% by weight, and a modulus of hair breakage. at least 3000, a modulus of elasticity of at least 300000 and, after a 24-hour soak test, water absorption of not more than 25% was achieved and a volume increase of not more than 15%;

B) US patent no. 7022756 involves a composite made from medium density fiberboard (MDF) waste or solid waste that includes urea formaldehyde. Panel waste is minced and ground into particles of a size between 20 and 150 mesh, creating a waste meal. After removing moisture, the waste flour is mixed with a thermoplastic to bind and encapsulate the waste flour. Internally lubricants are added to improve flow characteristics of mixed material, and externally lubricants are added to the mixture to improve extrusion. Mineral fillers are added to improve composite bending, and a plasticizer may be added to improve the physical properties or mechanical characteristics of the mixture. An ultraviolet absorber, a biocide, and a pigment may also be added. The material is mixed extruded or molded into a desired shape. When cooled, it forms a hardened solid composite; and

C) Japanese patent no. JP2005219215 reveals the obtaining of thin slab from MDF (Medium Density Fiberboard) industrial waste obtained from wood fiber board or medium-density wood fiber panel complemented by a bentonite-containing mix and sizing agent that is mixed with the waste while being agitated. The resulting mixture is heated and cooked to obtain the final product.

The disclosed processes have limitations and drawbacks of obtaining specific or limited products or complex processes. "PROCESS OF PROCESSING WOODEN WASTE AND TURNING" The object of the present invention has been developed to overcome the disadvantages, the drawbacks and the limitations of current processes because it uses sequence of operations. Specific industrial processes with a mixture of waste originated from distinct industrial processes, bringing advantages of wood economy, preservation of forests, avoiding deforestation, increase of industrialization index with low manufacturing costs and low investments.

For a better understanding of this patent, the following drawings are attached:

FIGURE 1 showing the block diagram of the process of the present invention;

FIGURE 2 showing the top or bottom view of the billet of the present invention;

FIGURE 3 showing side views of the present invention;

FIGURE 4 showing a first example of billet joining of the present invention for use as an industrial product; and

FIGURE 5 showing a second example of billet joining of the present invention for use as an industrial product.

The process of the present patent is performed in the following sequence:

I) MDF (0 to 100%) manufacturing residue and / or chipboard (0 to 100%) and / or wood cutting (sawdust) (0 to 100%) and urea formaldehyde resin (30a) 50% by weight of residue) and / or PVA vinyl polyacetate resin (30 to 50% by weight of residue) and water (8 to 12%);

II) The mixture is heated to 80 to 90 degrees for 40 to 60 minutes;

III) The mixture is pressed in hydraulic press and mold, with internal tubular core, heated and dimensioned to resist the pressure of 15 to 20 t / cm2;

IV) Extracting the billet (1) obtained and optionally machining in specific formats with slots for fitting other elements; and

V) The billets (1) are cut or joined by gluing, forming pieces of multiple prism shapes.

The billet (1) obtained by the process of the present invention has a rectangular hole with central hole with a diameter of 25 to 50 mm and dimensions of width of 70 to 120 mm, height of 70 to 120 mm and multiple length and width decompression. The best results were 200 mm long, 100 mm wide, 100 mm high and 50 mm hole diameter.

The use of billets (1) is by joining multiple units forming blocks (B) of various shapes and for various applications, such as manufacturing furniture or packing cradles and pallet feet, among other structural or filling industrial applications.

Claims (2)

1. "PROCESS OF PROCESSING WOODEN WASTE", characterized by the following sequence: -I) Mixing waste from MDF (0 to 100%) and / or agglomerate (0 to 100%) and / or cutting wood (sawdust) (0 to 100%) with urea formaldehyde resin (30 to 50% by weight of residue) and / or PVA vinyl polyacetate resin (30 to 50% by weight) and water (8 II) Heat the mixture to 80 to 90 ° C for 40 to 60 minutes III) Press the mixture into a hydraulic press and mold with a heated internal tubular core sized to withstand pressure from 15 to 20 ° C. t / cm2; IV) The billet (1) extracted and optionally machined into specific shapes with slots for fitting other elements; eV) The billets (1) are cut or joined by gluing to form multi-prism shaped pieces. "TARUGO", obtained by the process described in claim 1, characterized in that it has a prismatic rectangular shape with a central hole diameter of 25 to 50 mm and dimensions of width of 70 to 120 mm, height of 70 to 120 mm and of multiple length. width and height.