JPS5856077B2 - Exterior method of electric furnace - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for covering an electric furnace with a heat insulating material.

Conventionally, in order to increase thermal efficiency in electric furnaces, the outer periphery of the electric furnace body was covered with a heat insulating material and held down with a wire mesh to secure the heat insulating material, or the heat insulating material was covered with a metal plate and fixed in place. There is.

The cost of the former is low, but the installation method is a little troublesome, and the latter is expensive, and the heat dissipation area is large, so the thermal efficiency is poor, and the outer panel becomes hot, which can lead to burns. Ta.

The object of the present invention is to provide a method for cladding an electric furnace that eliminates the above-mentioned drawbacks and is inexpensive, simple in cladding, and high in thermal efficiency.

The present invention will be described below based on illustrated embodiments.

As shown in FIGS. 1 and 2, the electric furnace of the present invention is constructed by covering the outer circumferential surface of the furnace body 1 with a soft heat insulating material 2 such as ceramic wool to prevent heat dissipation in the furnace body 1 and increase heat efficiency. A holding plate 4 with a plurality of hooks 50 wrapped around a metal wire 3 such as
along the top and bottom of the presser plate 4 with the metal base 8 and bottom plate 6.
and fixed using screws 7.

More specifically, the cylindrical electric furnace main body 1 is heated by a heating wire (not shown).

Generally, heating wires are installed by creating a spiral groove on the inner wall of the main body.
A method of embedding a heating wire inside the groove, or a method of directly attaching a heating wire to the inner wall using iron wire, etc., are used.

With only the electric furnace body 1 described above, a large amount of heat is dissipated, and it is difficult to maintain the inside of the furnace at a high temperature.

In order to increase the heat efficiency and increase the humidity inside the furnace, a method is used in which the outer f surface of the furnace body 1 is covered with a heat insulating material 2 such as ceramic wool.

After the outer peripheral surface of the furnace body 1 is covered with a heat insulating material 2 to an appropriate thickness, a metal wire 3 such as an iron wire is wound spirally to hold the heat insulating material 2 so that it does not fall off from the furnace body 1.

Next, from the outside of the heat insulating material 2 around which the metal wire 3 is wound, a plurality of presser plates 4 are applied along the outer periphery at equal intervals with the hooks on the inside.

Hooks 5 are formed at equal intervals on one side of the upper presser plate 40, and the metal wires 3 are hooked thereon.

After hooking the metal wire 3 to the hook 5 of each folding plate 4, the tip of the hook 5 is bent in a direction to tighten the metal wire to prevent the metal wire 3 from falling off the holding plate 4.

The lower end of the presser plate 4 is inserted into the edge of the bottom plate 6 formed in the shape of a disc cap, the holes of the screws 7 are aligned with each other, and the screws 7 are screwed into place.

In the same manner, the upper end of the presser plate 4 is inserted into the upper mouthpiece 8, the holes of the screws 7 are aligned with each other, and the screws 7 are screwed together.

Since the present invention is configured as described above, the number of man-hours required for the exterior packaging is small, and the cost can therefore be reduced.

Moreover, the heat dissipation is small and the thermal effect is good.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the present invention, and FIG. 2 is a longitudinal sectional view taken along line A--A in FIG. 1...Main body, 2...Insulating material, 3...Metal wire, 4...
... Presser plate, 5... Hook, 6... Bottom plate, 8... Mouthpiece.

Claims (1)

[Claims] 1. In an electric furnace covered with a heat insulating material, a metal wire is spirally wound around the outer peripheral surface of the heat insulating material attached to cover the furnace body, and a plurality of hooks are formed at equal intervals toward the inside. The electric press plate is applied to the heat insulating material wrapped with the metal wire, and the metal wire is hooked to the hook, and the press plate is fixed from above and below using a metal cap and a metal bottom plate. Furnace exterior packaging method.