JPS62142929A - Calcinator device - Google Patents

Abstract

PURPOSE:To provide a calcination unit capable of making a uniform calcination of a calcinated object from its outer surface to its inside portion by a method wherein a ceramic coating is applied to a heat-resistant metallic plate with a proper clearance thereagainst to form a radiation plate. CONSTITUTION:A calcination net 5 for mounting an item to be calcinated is arranged at a stage part 4 of a calcination box 3 of a calcination case 1. An infrared ray generating device 6 facing the upper portion of the calcination net 5 is composed of heating means 7 and a radiation plate 8. The radiation plate 8 is composed of a heat-resistant metallic plate and a proper clearance 9 is provided below the radiation plate to form a ceramic coating 10. The radiation plate 8 is heated up to a hot temperature by a heating means 7. At this time, a near infrared ray is radiated from the clearance 9. A far infrared ray is radiated from the ceramic coating 10 and the item to be calcinated is heated with a radiation in a wide infrared wave length and calcinated. With this arrangement, it is possible to perform a superior calcination from an outer surface of the item to be calcinated to its inside portion.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an improvement in a roaster for grilling foods such as grilled fish.

BACKGROUND OF THE INVENTION Conventional roasters of this type are constructed so that the object to be roasted is placed on a grill grate, and a heating means is installed above the object to face the object. The object to be roasted has been roasted by heating it with heat from an electric heater, by heating it directly by using the combustion heat of a gas burner, or by heating it by heating a radiant plate.

Problems to be Solved by the Invention However, in the above configuration, the wavelength of radiation from the heating means is mainly near infrared rays (wavelength 0.8 to 4 pm) or far infrared rays (wavelength 4 to 25 pm). ) were the main ones. It is generally said that near-infrared rays are absorbed by the surface of the object to be roasted and heat it, while far-infrared rays penetrate into the inside of the object and heat it.

Furthermore, we believe that it is sufficient to irradiate infrared rays in the wavelength band that is most easily absorbed by the roasted material. However, living organisms, such as fish meat, which are roasted objects, are mostly composed of water, and the absorption peak wavelength of that water is approximately 3.6.12)Lm, which is in a wide infrared wavelength band.

However, as mentioned above, the wavelength range of radiation from currently used heating means is narrow, so even if the outside surface of the object to be roasted is scorched, the inside may not be. There was a problem in that the internal moisture decreased and the roasting became rough, making it impossible to roast evenly.

The present invention solves this conventional problem by burning the object to be roasted with a single beam of radiation in a wide range of infrared wavelength bands (06 to 20 m), and when the outer surface is moderately scorched, the inside is also burnt. The purpose is to ensure good baking.

Means for Solving the Problems In order to solve the above-mentioned problems, the roaster of the present invention includes a radiant plate which is provided above the object to be roasted and is heated by a heating means.
It is formed by loosening ceramic coatings at appropriate intervals on a heat-resistant metal plate.

Effects of the present invention With the configuration described in section 2, when a metal plate, which is a radiant plate, is heated to become red hot, near-infrared rays are emitted at a high level.
When the radiant plate is heated, far-infrared rays are emitted from the ceramic coating.

Therefore, radiation in a wide range of infrared wavelength bands can be obtained, making it possible to uniformly roast the object to be roasted both on its outer surface and inside.

Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. In FIGS. 1 and 2, 1 is a roasting case, and a roasting box 3 that partitions a roasting chamber 2 is housed in the roasting case. A stepped portion 4 is formed approximately in the center of the roasting box 3, and a grilling grate 5 on which the roasted material is placed is installed. An infrared generating device 6 facing above the gridiron 5 is composed of a heating means 7 such as a canuburner and a radiant plate 8 heated by the heating means 7. The heating means 7 may be an electric heater, and the radiation plate 8 can also easily be used as a gas burner by opening a large number of small holes in the radiation plate 8.

Incidentally, as shown in FIG. 2, this radiation plate 8 is made of a heat-resistant metal plate, and a ceramic coating 10 is formed on its lower surface at appropriate intervals 9. This ceramic coating 10 is made of ceramics such as alumina, zircon, and cordierite. 11 is a mounting piece for the radiation plate 8, and 12 is an exhaust port. Further, gas burners 13 are attached to both sides below the grill 5. Above the heating means 6, there is an exhaust cover 15 having an exhaust part 14,
A saucer 16 is placed on the bottom surface of the roasting box 3.

In the above configuration, the radiant plate 8 is heated to a high temperature by a heating means 7 such as a gas burner of an infrared ray generator 6 located on the upper surface side of the gridiron 5 on which the object to be roasted is placed. At that time, near-infrared rays are emitted from the metal surface (90 parts apart), and far-infrared rays are emitted from the ceramic coating 10, and the object to be roasted can be heated and roasted with radiation in a wide range of infrared wavelengths. be.

In addition, in the embodiment, the upper radiation plate 8 and the lower gas burner 1
3 and 3, the object to be roasted can be heated from both the upper and lower sides, and the object can be roasted conveniently without the need for turning the object over. However, in the present invention, the gas burner 1 in the lower part can be heated only by the radiant plate 8 in the upper part.
Even if the configuration does not include 3, the effect of evenly baking the upper side of the object to be roasted is the same. It is also conceivable that the ceramic coating is interspersed.

Effects of the Invention As described above, the roaster of the present invention provides the following effects.

■By forming a ceramic coating on a radiation plate made of a metal plate at appropriate intervals, a wide range of Kibt Genpaku flags and bolts can be used. Mm /7'l IIL XZ Good roasting can be performed from the city to the inside.

■When the surface of the object to be roasted is moderately charred due to the radiation in a wide wavelength range from the radiant plate, the inside of the object is well heated and the result is a delicious roast.Moreover, it is energy-saving and can be roasted in a short time. Become.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of a roaster in an embodiment of the present invention;
FIG. 2 is an enlarged bottom view of the radiating plate seen from below. 5...Grilling grid, 7...Heating means, 8...
...Radiation plate, 9... Spacing, 10...
・Ceramic coating. Name of agent: Patent attorney Toshio Nakao and 1 other person a-
m-Takashi Omi 1 & Figure 2 δ-width 11 exhibition? -r/l interval

Claims (1)

[Claims] It is equipped with a gridiron on which the object to be roasted is placed, a radiant plate that irradiates infrared rays from above the object to be roasted, and a heating means for heating the radiant plate, and the radiant plate is attached to a heat-resistant metal plate at appropriate intervals. A roaster with a ceramic coating formed on it.