JP3072789U - Drying basket for wet plate - Google Patents

Abstract

(57) [Summary] [Problem] When making boards through a drying process in a wet method,
An object of the present invention is to provide a drying basket which does not warp or crack even when dried at high temperature for a short time. Kind Code: A1 A skeleton (space) is formed by two square members and four slats, and a cage portion (FIG. 2) in which a wire mesh is stuck on a lower surface of an upper surface thereof and a frame portion formed by four square members (FIG. 3). A drying basket for a water-containing plate, comprising two layers of:

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a drying basket used when manufacturing a board through a drying process by a wet method, such as a fiber board, a gypsum board, an asbestos cement board, a calcium silicate board, a rock wool board, a pulp cement board, and recycled wood from waste paper. It is.

[0002]

[Prior art]

 Thick plywood is sandwiched between individual wet plates, and dried for a long time at low temperature.

[0003]

[Issues and issues to be solved]

 The present invention is based on a cage part that allows hot air to flow between the boards and a frame part that prevents the product from warping or cracking even if the drying temperature is increased by regulating the thickness of the product to a specified size. The present invention provides a two-layer drying basket.

[0004]

[Means for Solving the Problems]

 The present invention is based on the fact that a drying basket for efficiently drying a water-containing board is composed of two layers, a basket part for keeping the space between the boards and a frame part for regulating the thickness of the product. It is a drying basket (FIG. 4) which is a feature. The structure of the basket part is a skeleton (space) formed by two square bars (1 and 1 ') and four backing plates (2, 2', 2 ", 2" ") in FIG. A wire mesh (3 and 3 ') is attached to the cage to obtain the basket portion shown in FIG. When making a large basket part, reinforce it by inserting a square bar (for example, 1 ") between two square bars. The frame part is made up of four square bars (4, 4 ', 4", 4 "") as shown in FIG. In order to integrate the cage portion and the frame portion, for example, as shown in FIG. 5, the projections (navels) (5, 5 ') of the cage portion may be integrated with the frame portion. The drying basket thus obtained is fitted in the holes (6, 6 ') shown in FIG.

In order to manufacture products having several types of thickness, frames having different thicknesses are prepared. This drying basket is used by stacking several tens of stages with the water-containing plate (7) placed in the space A in FIG. 4, sandwiching the upper plate (8) and the lower plate (9) in FIG. Fix it with bolts and nuts (10), turn it over, put it on the trolley 11, and put it in the dryer with rails. The hot air flows upward from below the duct 13. Since the amount of square timber (1 or 4) used is large, stacking multiple drying baskets containing water-containing plates will result in considerable weight. In some cases, a 1.6 mm thick square pipe can be used instead of the square lumber. If you are concerned about the pressure resistance of the lower part of the stack of drying baskets, you can increase the pressure resistance by pouring epoxy resin or cement into the square pipe. The wire mesh used should be as fine as possible, for example, a 40 mesh wire mesh, so that the surface of the product becomes smooth. Therefore, since the strength is weakened or loosened, it is necessary to reinforce a wire mesh having a large diameter, an expanded metal, a punching metal or the like under the wire mesh. Next, as shown in FIG. 8, two drying baskets of the present invention are stacked upside down, and two wet plates are stacked and dried to double the thickness of the product. If a nonwoven fabric impregnated with an adhesive emulsion is impregnated between two water-containing plates, a cold gauze, a mesh material, and the like are dried, a strong bond can be obtained and the bending strength can be improved.

[0006] As an example of implementation, a synthetic resin emulsion is added to waste paper pulp slurry disintegrated with a pulper, and when making a recycled board by a wet method, the solid content is dehydrated to 30% and then the drying basket of the present invention is used. Dried. 1 and 1 'used for the cage part were 1.6 mm x 32 mm x 14 mm square pipes, and the same 1 "was a 14 mm x 14 mm square pipe. Frame parts 4, 4', 4", 4 "" Used a square pipe with a wall thickness of 1.2 mm, 10 mm x 22 mm. Wire meshes 3 and 3 'were made of 40 mesh stainless steel wire mesh, and expanded metal of 1.2 mm 7 mm x 14 mm was used thereunder. A water-containing plate (water content: 70%) having a thickness of 1820 mm × 910 mm and a thickness of 10 mm was dried at a temperature of 110 ° C. for 6 hours to 170 ° C. for 3 hours to a water content of 3 to 5%.

[0007]

[Effect of the invention]

 Although it is an extreme example, in the case of drying a conventional pillar, drying is required at 80 ° C. for 2 weeks to prevent cracking and warping. In the case of a recycled board having a thickness of 10 mm as in the above-described embodiment, no warp crack was generated even when the drying temperature was increased to 170 ° C. The time was reduced to 3 hours.

[0008]

[Submission date] May 26, 2000 (2000.5.26)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents] [Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a drying basket used when manufacturing a board through a drying process by a wet method, such as a fiber board, a gypsum board, an asbestos cement board, a calcium silicate board, a rock wool board, a pulp cement board, and recycled wood from waste paper. It is.

[0002]

[Prior art]

 Thick plywood is sandwiched between individual wet plates, and dried for a long time at low temperature.

[0003]

[Issues and issues to be solved]

 The present invention is based on a cage part that allows hot air to flow between the boards and a frame part that prevents the product from warping or cracking even if the drying temperature is increased by regulating the thickness of the product to a specified size. The present invention provides a two-layer drying basket.

[0004]

[Means for Solving the Problems]

 The present invention is based on the fact that a drying basket for efficiently drying a water-containing board is composed of two layers, a basket part for keeping the space between the boards and a frame part for regulating the thickness of the product. It is a drying basket (FIG. 4) which is a feature. The structure of the basket part is formed by two square members (1 and 1 ') and four backing plates (2, 2', 2 ", 2") in FIG. And 3 ') are pasted to obtain the cage portion shown in FIG. When making a large basket, reinforce it by inserting a square bar (for example, 1 ") between two square bars. The frame portion is made up of four square bars (4, 4 ', 4", 4 ") as shown in FIG. In order to integrate the cage portion and the frame portion, for example, as shown in FIG. 5, the projections (navels) (5, 5 ') of the cage portion may be integrated with the frame portion. The drying basket thus obtained is fitted in the holes (6, 6 ') shown in FIG.

In order to manufacture products having several types of thickness, frames having different thicknesses are prepared. This drying basket is used by stacking several tens of stages with the water-containing plate (7) placed in the space A in FIG. 4, sandwiching the upper plate (8) and the lower plate (9) in FIG. (Bolts and nuts) (10), and put on a dolly. Since the amount of square timber (1 or 4) used is large, stacking multiple drying baskets containing water-containing plates will result in considerable weight. In some cases, a 1.6 mm thick square pipe can be used instead of the square lumber. If you are concerned about the pressure resistance of the lower part of the stack of drying baskets, you can increase the pressure resistance by pouring epoxy resin or cement into the square pipe. The wire mesh used should be as fine as possible, for example, a 40 mesh wire mesh, so that the surface of the product becomes smooth. Therefore, since the strength is weakened or loosened, it is necessary to reinforce a wire mesh having a large diameter, an expanded metal, a punching metal or the like under the wire mesh. Next, as shown in FIG. 7, two drying baskets of the present invention are stacked upside down, and two wet plates are stacked and dried to double the thickness of the product. If a nonwoven fabric impregnated with an adhesive emulsion is impregnated between two water-containing plates, a cold gauze, a mesh material, etc., and dried, a strong bond can be obtained and the bending strength can be improved.

[0006] As an example of implementation, a synthetic resin emulsion is added to waste paper pulp slurry disintegrated with a pulper, and when making a recycled board by a wet method, the solid content is dehydrated to 30% and then the drying basket of the present invention is used. Dried. 1 and 1 'used for the basket part were 1.6 mm thick 32 mm x 14 mm square pipes, and the same 1 "used 14 mm x 14 mm square pipes. For 4 ″, a square pipe having a thickness of 1.2 mm, 10 mm × 22 mm was used. For the wire meshes 3, 3 ′, a 40-mesh stainless steel wire mesh was used, and for reinforcement, an expanded metal having a thickness of 1.2 mm, 7 mm × 14 mm was used thereunder. A water-containing plate (water content: 70%) having a thickness of 1820 mm × 910 mm and a thickness of 10 mm was dried at a temperature of 110 ° C. for 6 hours to 170 ° C. for 3 hours to a water content of 3 to 5%.

[0007]

[Effect of the invention]

 Although it is an extreme example, in the case of drying a conventional pillar, drying is required at 80 ° C. for 2 weeks to prevent cracking and warping. In the case of a recycled board having a thickness of 10 mm as in the above-described embodiment, no warp crack was generated even when the drying temperature was increased to 170 ° C. The time was reduced to 3 hours.

[0008]

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an example of a skeleton (space) of a basket portion of the present invention.

FIG. 2 is an explanatory diagram showing an example of a basket portion of the present invention in which a wire mesh is attached to the skeleton (FIG. 1).

FIG. 3 is an explanatory view showing an example of a frame portion of the present invention.

FIG. 4 is an explanatory view showing an example of a drying basket (in which a basket part and a frame part are integrated) of the present invention.

FIG. 5 is a cross-sectional view showing an example of fitting of the basket part and the frame part according to the present invention.

FIG. 6 is an explanatory diagram showing an example of a case where the drying baskets of the present invention are used in a stacked state in several stages.

FIG. 7 is an explanatory view showing an example in which a plurality of drying baskets of the present invention (FIG. 6) are stacked on a carriage and placed in a dryer.

FIG. 8 is an explanatory view in a case where two drying baskets of the present invention are stacked upside down to double the thickness of the product.

[Explanation of symbols]

1, 1 ', 1 "square material 2, 2', 2", 2 "'backing plate 3, 3' wire mesh 4, 4 ', 4", 4 "" frame material 5, 5' 6 'Holes on the lower surface (corresponding to 5, 5') 7 Water-containing plate (to be a product) 8 Upper iron plate 9 Lower iron plate 10 Tambuckle (bolts and nuts) 11 Bogie 12 Rail 13 Hot air duct A Space for placing water-containing plate B Arrow Hot air flows in the direction of

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[Procedure amendment]

[Submission date] May 26, 2000 (2005.2.
6)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Name of device] Basket for drying water-containing plate

[Utility model registration claims]

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an example of a skeleton of a basket portion of the present invention.

FIG. 2 is an explanatory diagram showing an example of a basket portion of the present invention in which a wire mesh is attached to the skeleton (FIG. 1).

FIG. 3 is an explanatory view showing an example of a frame portion of the present invention.

FIG. 4 is an explanatory view showing an example of a drying basket (in which a basket part and a frame part are integrated) of the present invention.

FIG. 5 is a cross-sectional view showing an example of fitting of the basket part and the frame part according to the present invention.

FIG. 6 is an explanatory diagram showing an example of a case where the drying baskets of the present invention are used in a stacked state in several stages.

FIG. 7 is an explanatory view in a case where two drying baskets of the present invention are stacked upside down to double the thickness of the product.

[Description of Signs] 1, 1 ', 1 "square member 2, 2', 2", 2 "backing plate 3, 3 'wire mesh 4, 4', 4", 4 "square member for frame 5, 5 'projection 6, 6 'Holes on the lower surface (corresponding to 5, 5') 7 Water-containing plate (to be a product) 8 Upper iron plate 9 Lower iron plate 10 Tambuckle (bolts and nuts) A Space for mounting the water-containing plate B Hot air in the direction of the arrow Passes

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 4

FIG. 5

FIG. 6

FIG. 7

Claims (3)

[Utility model registration claims] 1. A skeleton (space) is formed by two square lumbers and four backing plates, and a wire mesh is attached to the upper and lower surfaces to obtain a basket portion. A frame portion made of four square members is placed thereon and integrated. A basket for drying, characterized in that the basket part is composed of two layers of a frame part. 2. The drying basket according to claim 1, wherein the square member is made of a square pipe or an epoxy resin or cement poured into the inside of the square pipe to increase the pressure resistance. 3. A reinforcing method in which a wire mesh having a large diameter, an expanded metal, a punched metal or the like is sandwiched under the wire mesh.
The drying basket described.