CN213979366U

CN213979366U - Glue-free straw heat-insulation core material for building

Info

Publication number: CN213979366U
Application number: CN202022189925.9U
Authority: CN
Inventors: 田仁德
Original assignee: Yantai Jintian Technology Co ltd
Current assignee: Yantai Jintian Technology Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-08-17
Anticipated expiration: 2030-09-29

Abstract

The utility model relates to a glue-free straw heat-insulating core material for buildings, which comprises a rib layer and a loose layer positioned at two sides of the rib layer, wherein the two surfaces can be added with alkali-free glass fiber cloth or non-woven fabric; wherein the tendon and bone layer is formed by firm and flexible whole straws according to the same trend; wherein each loose layer is formed by the whole soft and tough straw according to the same trend; the straw directions between adjacent layers are mutually vertical, and the layers are integrated through criss-cross fiber refractory seams. The whole uncrushed straw is used as a raw material, hard straws such as corn stalks, sorghum stalks, sunflower stalks, straw stalks and the like are selected as bones and muscles in the middle layer to ensure that the board has better rigidity and flexibility, and loose straws such as wheat straws, rice straws, reed and the like are selected as loose layers to ensure that the whole board has lower density and better heat preservation and sound insulation performance.

Description

Glue-free straw heat-insulation core material for building

Technical Field

The utility model relates to a building heat preservation core, in particular to a building glue-free core material using straws as main raw materials.

Background

The straw board serving as a building board has been widely applied to the field of buildings due to the outstanding advantages of reducing incineration pollution, being renewable, light in weight, heat preservation, sound insulation and the like. In order to improve the forming performance and the connectable performance of the straw heat-insulating core material, the straw is generally required to be crushed when the straw board is manufactured, and then a large amount of adhesive is added for compression molding. The main disadvantages are: firstly, due to the fact that the adhesive contains a large amount of organic adhesive components, harmful gases such as formaldehyde and the like can be released for a long time, the body health of residents is damaged, and the environment is not environment-friendly enough; secondly, the light and convenient characteristics of the straw board cannot be fully reflected due to the high density; thirdly, a large amount of adhesive is required to be added during the production of the product, the process is complex, and the production cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a glueless straw heat preservation core material for building is provided, it belongs to the environmental protection type building board that the formability that uses whole straw to make raw materials obtain is good and do not have the organic auxiliary material to add.

The technical scheme of the utility model as follows:

the glue-free straw heat-insulating core material for the building is characterized by comprising a rib layer and a loose layer positioned on two sides of the rib layer; wherein the tendon and bone layer is formed by firm and flexible whole straws according to the same trend; wherein each loose layer is formed by the whole soft and tough straw according to the same trend; the straw directions between adjacent layers are mutually vertical, and the layers are integrated through criss-cross fiber refractory seams.

Preferably, the straw forming the tendon and bone layer is one or more than two of corn stalk, cotton stalk, sunflower stalk and hemp stalk in any proportion; the straw forming the loose layer is one or more than two of wheat straw, rice straw, corn stalk, sorghum stalk and reed in any proportion.

Preferably, the outer side surface of the loose layer is attached with a layer of alkali-free glass fiber cloth or non-woven fabric.

Preferably, the straw thermal insulation core material comprises a cable pipe; the cable tube is positioned in the rib layer, two ends of the cable tube are both open, and the two ends of the cable tube are both parallel and level to the end face of the straw heat-insulating core material or extend outwards.

The utility model discloses an actively the effect as follows:

firstly, the whole uncrushed straw is used as a raw material, the hard straw is selected as a rib and bone in the middle layer to ensure that the board has better rigidity and flexibility, and the loose layer is selected from loose straws such as wheat straw, rice straw, corn stalk, sorghum stalk and reed to ensure that the density of the whole board is lower, the heat preservation and sound insulation performance is better, and the board is more ecological and environment-friendly.

The second, the utility model discloses partial technical scheme has adopted fine cloth of alkali-free glass and non-woven fabrics, and the advantage is that insulating nature is good, corrosion resistance is good, and mechanical strength is high.

And thirdly, the cable pipes are arranged in the straw heat-insulation core materials and are consistent in position, and the cable pipes of the adjacent straw heat-insulation core materials are mutually butted during construction, so that wiring from the inside of the wall body is facilitated, and the trouble of later-stage decoration and wall opening wiring is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

The sewing thread is omitted from the drawings.

Detailed Description

The invention is further described with reference to the following figures and examples.

Example one

Referring to fig. 1, the present embodiment includes a tendon layer 1 and a loose layer 2 on both sides of the tendon layer 1. Wherein the tendon-bone layer 1 is formed by firm and flexible whole straws according to the same trend, and the straws forming the tendon-bone layer mainly comprise corn stalks, cotton stalks, sunflower stalks, hemp stalks and the like. Wherein each loose layer 2 is formed by the whole soft and tough straws according to the same direction, and the straws forming the loose layer 2 are mainly wheat straws, rice straws, corn straws, sorghum straws, reeds and the like. The straw directions between adjacent layers are mutually vertical, and after initial pressing, all layers are sewn into a whole through criss-cross fiber fire-resistant wires.

During preparation, firstly, three layers of straws are paved on a feeding paving table according to the set layer number, materials and straw trend, then the straws are compacted and sewed at normal temperature through rolling and sewing equipment, and the straws are cut to length after being taken off the machine.

Example two

As shown in fig. 2, in the embodiment, two layers of alkali-free glass fibers or non-woven fabrics 4 are added on the basis of the first embodiment, and the two layers of alkali-free glass fibers or non-woven fabrics 4 are respectively attached to the outer side surfaces of the two loose layers 2.

EXAMPLE III

Referring to fig. 1-2, on the basis of the above embodiment, the straw insulation core further comprises a cable tube 3. The cable tube 3 is positioned in the rib layer 1, two ends of the cable tube 3 are both open, and two ends of the cable tube are both parallel and level to the end face of the straw heat-insulating core material or extend out for a certain length.

The cable tube 3 is required to be consistent in position in each straw heat-insulating core material to form standardization. During construction, the end faces of the adjacent straw heat-insulating core materials are butted, and the pipe orifices of the cables are aligned, so that the wires can be arranged on the wall body conveniently. The cable tube 3 is generally made of a PVC tube with the diameter of 20-35mm, and is thinner than a plate with the overall thickness of 100-300mm, and the deformation amplitude of the cable tube can be ignored during preparation.

The products of the first and second embodiments can be sold as semi-finished products and can also be used as core plates of composite wall panels.

Claims

1. The glue-free straw heat-insulating core material for the building is characterized by comprising a rib layer (1) and loose layers (2) positioned on two sides of the rib layer (1); wherein the tendon-bone layer (1) is formed by firm and flexible whole straws according to the same trend; wherein each loose layer (2) is formed by the whole soft and tough straw according to the same trend; the straw directions between adjacent layers are mutually vertical, and the layers are integrated through criss-cross fiber refractory seams.

2. The glue-free straw heat-insulating core material for the building as claimed in claim 1, wherein: the outer side surface of the loose layer (2) is adhered with a layer of alkali-free glass fiber cloth or non-woven fabric (4).

3. The glue-free straw heat-insulating core material for the building as claimed in claim 1 or 2, wherein: the straw heat-insulation core material comprises a cable pipe (3); the cable tube (3) is positioned in the rib layer (1), two ends of the cable tube (3) are both open, and the two ends are flush with the end face of the straw heat-insulating core material or extend outwards.