JPH03500552A - Method and apparatus for producing heat and sound insulation panels and sound insulation materials, and panels produced by the method - Google Patents

Abstract

In the process disclosed, pulp mixed in a dosing device is introduced into the pre-shaping device (1) on an endless shaping web (3), for example a papermaking machine wire web, which serves successively for support and drainage of the pulp during pressing and pre-shaping and as a means for handling the pre-shaped board to remove it from the pre-shaping device (1). The pre-shaped board is then introduced into a tunnel furnace (5) with double-sided percussion in which the hot air at a temperature of 185 to 200 DEG C is blown forcibly and very uniformly onto the two faces of the board to be dried.

Description

[Detailed description of the invention] Methods and equipment for producing heat-insulating and sound-insulating panels and sound-insulating materials, and products produced by said methods The present invention can be used to remove cellulose fibers and lumpy plant waste, especially large amounts of straw and paper. recycled or top-grade This invention relates to protective panels made from raw materials.

According to patent EP-A-0084917, this type of panel is called “preformed”. It is made from cellulose fibers and plant waste mixed with the appropriate amount of water in a machine that A very low weight, about 1 kilogram per square centimeter, can be used to Produced in a single molding operation under high pressure. After molding in this way, The panels are continuous which removes numerous air bubbles to add the required properties to the panels. Dry in the oven.

The purpose of the invention is to provide the above-mentioned new features to improve various stages of the production process. The method is applied to the Withstands pressure of 180 kg per barrel. dry, felt-covered The purpose of this invention is to make it possible to obtain a zero wall-resistant material.

The method for producing a protective panel according to the present invention to achieve this objective has the following characteristics: have

1. The uniform valve discharged from the dispenser is transferred to the paper making machine in the preforming machine (1). conveyed onto a circulating screen (3) of the type used in The circulation plow net (3) continuously supports and drains the valve during compression, preforming, and presses the preformed valve. It serves as a means for removing dust from the preformer (1).

2. Preformed valves are suitable for panel heating at temperatures between 185°C and 200°C. Double-sided drying, which blows hot air from both sides to forcefully and very evenly dry the panel. Further, according to the present invention, the automatic metering The panels are measured and covered on one side with a layer of adhesive and cardboard, then the adhesive is cured at the same time. It is introduced into a heat compressor which forms an indentation around the panel.

Further features will become apparent from the following description based on the accompanying figures (Figures IA and B). FIG. 3 is a front view showing the main process of driving.

FIG. 2 is a partially enlarged view of the thermal compressor.

Initially, the panels according to the invention can be used for example with straw, bulk paper, agricultural water and Produced from sewage, recycled chips from calibration and machining processes, etc.

Using these raw materials, valves are produced by valve manufacturing machines, homogenized and pre-prepared. It is sent to a dispenser that conveys the prepared molding machine 1.

In the preforming machine, a floating platen 2 is connected to a circulating screen 3 of the type used in paper making. Sent. A movable platen 3 driven by a jack is operated at the required pressure, i.e. 1 Down from 1.1 kilograms per square centimeter to 4 kilograms per square centimeter. to slide. The screen 3 supports the valve and dewaters it during compaction and preforming. , and removing the preformed valve from the preforming machine. Then, it is quickly transferred to the two-speed conveyor 4 using the elevator 4.

The plow net 3 consists of a shilling-1 consisting of suitable means for controlling movement and temporary framing. Driven by °. These shillings include a polishing machine and a water spray machine. The equipment is equipped with cleaning equipment. In order to distribute the pressure on the screen 3, a preforming machine is used. An intermediate perforated plate 3° is fixed on a grid attached to the move.

A two-speed conveyor 4 has multiple stages that can place products on several horizontal surfaces. A preformed panel is placed in a tunnel type oven 5 whose dimensions match the conveyor 6 with screws. Introduce slowly. Drying in the oven reserves a clearly defined amount of moisture Very high under conditions that are exactly repeated. After drying, remove moisture (possibly by A large number of vacuoles remain, which improve the felt strength as well as the panel's thermal and acoustic properties. granted. The continuous oven is operated at a temperature of 185°C to 200°C, and hot air is The air force was evenly distributed on both sides of the flannel at a wind speed of 13 to 18 meters per second. Ru. Drying time depends on the thickness of the panel. Depending on the drying conditions, the optimum raw material It provides a unique treatment and retains its properties throughout manufacturing.

The drying panel is sent out from the two-speed conveyor 7 (vertical displacement means 7) and is automatically loaded. The panels are automatically moved by being placed on a carriage or by a belt conveyor 8. It is directly sent to the double-sided scale measuring device 9 where it is dimensioned and polished.

The scaled panel is then placed on a loading platform or adhesive applicator 10. Each side of the panel is covered with a layer of cardboard before being placed in a heat press 12 to harden the adhesive. It is sent to the covering table 11. At the same time, an indentation is formed around the panel in this heat compressor. be done. By applying pressure to the edges of the panel to make it thinner, all four sides of the panel can be Form a surface 4-6 cm wide and 2-4 mm deep. in this way By doing so, the hollow space formed by the upper surfaces of the two juxtaposed panels is By gluing pieces of glass fiber together, the edges of the panels are sealed and strongly bonded. be able to. Finishing is complete (easily done) with fillers and finishing coats. Wear.

Heat pressure for bonding to the final finished surface of the panel! ! Formation of surface in 1ta12 Shown in Figure 2. The figure shows a fixed heat shield with a wedge 14 finished to an appropriate thickness. A reverse mold 17 is installed on the platen 13 and the hydraulic jack 16 to form a surface. The attached movable hot platen 15, the panel 18 coated with adhesive 19, and the surface material 20 is shown. Adhesive hardness for thinning panel edges and bonding facing materials The conversion is performed by a single thermal compression operation.

Once the heat compression is complete, the panels are sawed on all four sides and shaped into a rectangle.

Place it on a loading platform and save it.

Cellulose and plant waste are considered raw materials for producing panels in the preamble. I said that. The term "cellulose" refers to waste paper and Cellulose extracted from mixed paper made from grains whose fibers are disintegrated by For example, Babilus, sugarcane dregs, wood, banana tree leaves and others. fibers produced from similar fibrous plants etc. whose fibers are disintegrated to make valves. Points to Lurose.

The term "plant waste" includes 2 e.g. coffee bean husks, bran, rice bran, rice husks and Considered as manufacturing residue, such as the husks of other grains, grain or rice straw, sawdust or wood chips. Refers to plant-based substances.

■ Special table 13-500552 (3) international search report

Claims (7)

[Claims] 1. Recycled or top-grade raw materials, such as cellulose fibers and bulk plant waste This is a method of manufacturing heat and sound insulation panels from raw materials made of In the method of manufacturing, preparing pulp, homogenizing, preforming and drying panels: 1 'The uniform pulp discharged from the dispenser is transferred to the paper making machine in the preforming machine (1). It is conveyed onto a circulating plow net (3) of the type used in the event, and the circulating plow net (3) Continuously supports and dewaters the pulp during compression and preforming, and shreds the preformed pulp. 2' acts as a means for removing the preformed part from the preforming machine (1); The flannel was introduced into a double-sided impact type tunnel oven (5) and heated to 185°C or higher. Hot air is blown from both sides of the panel at temperatures below 200℃. panel is forced and very evenly dried; A method for manufacturing a heat and soundproof panel characterized by: 2. The preform weighs between 1.1 kg and 4 kg per square centimeter. Claim 1 characterized in that it is carried out in a single action at the pressure of the ram. A method for producing a heat-insulating and sound-insulating panel as described in section. 3. The circulation screen (3) controls its movement, temporarily frames it, and distributes pressure throughout the screen. Driven by a cylinder (1') that slides over a perforated plate (3') to clothe A method for manufacturing a heat and sound insulation panel according to claim 1, characterized in that: 4. The preformed panels contain approximately 65 to 75% water by weight before drying. The heat and sound insulation panel according to claim 1, characterized in that it comprises: Manufacturing method. 5. Inside the tunnel oven (5), hot air flows at speeds ranging from 13 meters per second to 18 meters per second. as claimed in claim 1, characterized in that it is distributed at a speed of meters per second. manufacturing method for thermal and soundproof panels. 6. said panel (18) is dried in a double-sided polishing calibrator and automatically calibrated; Both sides are covered with layers of adhesive (19) and cardboard (20) and sent to a heat compressor (12). While the adhesive is curing to bond the surfacing material, the compressor (12) is The periphery of the panel is secured by the joint forming part (17) attached to the hot platen (15). Claims 1 to 5, characterized in that an indentation or surface is formed on the A method of manufacturing a thermal and acoustical panel according to one or more of the above. 7. Simultaneously thermal and acoustical, pristine, polished, calibrated and surfaced. covered with a face material and produced by the manufacturing method described in one or more of claims 1 to 6. A heat-insulating and sound-insulating panel characterized by being manufactured using