JPH0245598Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a thermal insulating cloth used to insulate a high-temperature object such as steel from its surroundings and keep it warm.

[Conventional technology]

When high-temperature steel ingots are temporarily stored or transported during the manufacturing process of steel products, thermal covers are used to prevent heat from radiating from the steel ingots and to insulate them from the surrounding area. This thermal cover used a rigid thermal box consisting of a steel casing lined with a heat insulating material. However, in recent years, with the development and spread of cloth made of fire-resistant inorganic fibers,
Fire-resistant inorganic fiber cloth has come to be used for the door of a heat-insulating box, or to directly cover a hot steel ingot in place of a heat-insulating box.

Examples of the fire-resistant inorganic fiber cloth include alumina-silica ceramic fiber cloth (e.g., Isolite Kogyo's Kao Wool Cloth), siliceous heat-resistant fiber cloth (e.g., Hitoko Co., Ltd., trade name: Refrasil Cloth),
There are Boria siliceous refractory fiber cloths (Nextel Cloth from 3M, USA), etc.

When used as a door for a warming box, the upper part of the cloth is fixed to the warming box, and several points between the top and bottom are hung, and the cloth is opened and closed by raising and lowering. In addition, when directly covering the steel ingot, by covering it with an appropriate number of cloths depending on the size of the steel ingot, it can be covered with the minimum space depending on the shape and size of the steel ingot.

However, when used as a door, the cloth is attached like a curtain, so the cloth comes into contact with the steel ingot as it sways in the wind, and when directly covering the steel ingot, it naturally comes into contact with the steel ingot. The above cloth is a single fiber,
Although it has sufficient hardness, it is extremely thin, so it comes into contact with the steel ingot and wears or gets scratched, shortening its useful life. In order to prevent the cloth from coming into direct contact with the steel ingot, it is conceivable to cover the surface of the cloth with a heat-resistant metal mesh. However, if this is done, the cloth and mesh will slide due to the curvature, causing wear, and the weight will increase, reducing the advantage that the cloth is light.

[Problem that the invention attempts to solve]

The present invention aims to provide a structure that can prevent the cloth itself from rubbing against other objects without using a metal mesh, and prevents wear caused by the cloth sliding against objects other than the cloth. It is something.

[Means for solving problems]

The present invention consists of a penetrating portion of the cloth made of fire-resistant inorganic fibers, two clamping portions provided on both sides of the penetrating portion and sandwiching the cloth around the penetrating portion from both sides, and one end extending from the surface of the cloth. A number of protrusions having protrusions protruding in the same direction are provided on the heat-insulating cloth at intervals from each other.

A single piece of fire-resistant inorganic fiber cloth has a thickness of about 2 mm. This cloth may be used alone. However, if necessary, one or more types of cloth are often used in layers, but in this case, they may be sewn together in advance, or they may be integrated by attaching protrusions without sewing them together.

Projecting objects include bolts with heads made of heat-resistant materials such as heat-resistant metals and ceramics, stud bolts without heads, riveted materials, rod-like materials with a step on one end and a small diameter, washers, and nuts. , eyelet material, etc. can be combined to form the structure. For the protrusions, insert a rod-shaped part into a hole with a drill, apply washer to both sides of the hole, and use a bolt with a head.
Place the head in contact with the outer surface of one of the washers, fit a nut onto the shaft of the bolt, and tighten the head and nut in a cross pattern so that the bolt shaft protrudes 2 to 3 cm from the surface of the cross. Needless to say, in this example, the head of the bolt and the nut serve as a clamping part that holds the cloth from both sides. For bolts or bar-shaped materials, the outer diameter of the shaft is 1 to 3 mm depending on the thickness of the cross.
A certain degree is used.

The protrusions are attached with one end protruding from the surface where the cloth comes into contact with other objects, and the height of the protrusions and the mutual spacing are determined depending on the softness of the cloth, so that the distance between the protrusions of the cloth and other objects is determined. It is sufficient to provide the protrusions so that they do not contact each other, and the distance between the protrusions can generally be selected between 50 and 300 mm.

〔Example〕

FIG. 1 shows an embodiment in which protrusions 3 are provided on a cross 1 made of refractory inorganic fibers at each intersection of lines drawn in a grid pattern at equal intervals.

Figure 2 is a sectional view of the part where the protrusion 3 in Figure 1 is attached to the cross 1. Washers 2 are placed on both sides of the hole made in the cross 1, and a bolt with a head is inserted into the cross 1 from one side of the cross 1. Insert the nut 4 from one end of the protruding bolt by inserting it through the hole provided and the washer 2 and making it protrude to the other side. The bolt is fixed to the cross 1 by being clamped from both sides, and a protrusion 3 is formed with one end of the bolt opposite to the head serving as a protrusion.

FIG. 3 is a cross-sectional view similar to FIG. 2 showing another example of the structure of the protrusion, in which the rod-shaped material has a flange at the center in the longitudinal direction, and a thread is formed from the flange to the other end. Insert the metal fitting from the other side into the hole provided in the cross 1 and the washers 2 placed on both sides of the hole in the same way as shown in Fig. 2, and fit the nut 4 into the screw protruding from one side to connect the collar and the nut 4. The cross 1 is clamped and fixed, and the protrusion 3' is formed by using one end of the rod-shaped member that protrudes to the other side of the cross 1 as a protrusion.

Numerous protrusions 3 in Fig. 1 and protrusions 3' in Fig. 3
The protrusions are attached to the other side of the cross 1 so as to protrude in the same direction.

[Effect]

In the present invention, the arrangement interval of the protrusions on the cross,
The protrusion length of the protrusion is adjusted so that it acts as a spacer between the cross and other objects placed close to the cross, even when the cross is bent between the protrusions of adjacent protrusions. By providing the cloth so that it does not come into direct contact with other objects, it is possible to prevent wear and damage to the cloth due to the cloth coming into direct contact with other objects. This solves the problem of damage to the cloth due to sliding between the mesh and the mesh, and the service life of the cloth can be extended compared to the conventional method.

[Effect of idea]

According to the present invention, it is possible to provide a heat-insulating cloth that can extend the service life of the cloth.

[Brief explanation of drawings]

Fig. 1 is a front view of one embodiment of the heat-insulating cloth according to the present invention, Fig. 2 is a cross-sectional view of the attachment portion of the protrusion 3 of Fig. 1 to the cloth 1, and Fig. 3 is another embodiment of the protrusion. FIG. 2 is a cross-sectional view similar to FIG. 2 illustrating an example; 1...Cross, 2...Watshiya, 3,3'...
...Protrusion, 4...Natsuto.

Claims (1)

[Scope of utility model registration request] A penetrating portion of the cloth made of fire-resistant inorganic fibers, two clamping portions provided on both sides of the penetrating portion and sandwiching the cloth around the penetrating portion from both sides, and one end protruding from the surface of the cloth in the same direction. A heat-retaining and insulating cloth, wherein a large number of protrusions having protrusions are provided on the cloth at intervals from each other.