JPS6340194Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an apparatus for heating bulk solid foods such as sweet potatoes, potatoes, chestnuts, and almonds.

(Prior Art) Since prehistoric times, various types of food baking devices have been developed based on various principles depending on the shape and properties of the target food and human tastes. There are various types of devices for baking bulk solid foods, and some of these devices utilize heat-resistant particles in a container as a heat medium. That is, heat-resistant particles are placed in a container and heated from outside the container. The target food is placed in this mixture and the food is baked while stirring using the particles as a heating medium. The particles are stirred manually or mechanically to ensure uniform baking around the food.

Examples of foods baked in this way include so-called stone-roasted sweet potatoes and Amatsu sweet chestnuts.

(Problem to be solved by the invention) This device for baking food by heating solid particles can bake food evenly compared to simply roasting the food directly with a fire or heater, or using an oven. It has the feature of being able to

However, it is not always sufficient to avoid uneven cooking due to uneven heat transfer, undercooking, and carbonization due to overheating, and it is extremely difficult to grill flat foods such as starch. Furthermore, it takes time to transfer heat, and has the disadvantage that sufficient temperature control, automation based on this control, and energy saving are difficult. In particular, the flavor changes delicately depending on how heat is applied, and it is difficult to maintain a constant flavor with good reproducibility.

The device according to the present invention enhances flavor by uniformly applying heat from all directions on food, and efficiently saves energy by facilitating heat management.

(Means for solving the problem) The present invention is intended to solve the above problem. The inside of the container on the plate is filled with heat-resistant particles to form a particle layer, a heater for heating the heat-resistant particles is provided inside or outside the container, and a blower from an air blower is provided at the bottom of the container. It is configured by connecting a blower pipe for supplying air, and with this structure, air is blown into the heated particle layer through an air diffuser plate and placed in the particle layer while being stirred. It is designed to heat solid food.

The diffuser plate has a large number of holes that do not allow particles to pass through, but allows gas to pass through, and is made of a perforated plate, a porous sintered metal plate, a wire mesh, or the like. The particles must be moved around and agitated by a predetermined amount of air flow, and conditions must be appropriately selected to prevent them from flying out of the container. These conditions are determined from the amount of air blown, specific gravity, shape, and outer surface area of the particles. The solid food may be placed directly embedded in the particle layer or placed in a basket. Baskets are used when the food is light, or when the food itself is small, such as almonds. The temperature of the particle layer is stable due to stirring and mixing by gas. For example, at 300℃, it is ±3℃, so
Temperature control is easy, so food can be heated at a controlled, predetermined temperature.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

The blower 1 is connected via a control valve 2 and a blow pipe 3 to a bottom 9a of a container 9 with an open top. An air diffuser plate 4 is provided inside the container 9 at a distance from the bottom 9a. The air diffuser plate 4 contains particles 8, which will be described later.
A large number of holes 4a are bored through which the air from the blower 1 is allowed to pass through, but not through.

Inside the container 9, heating elements of the heater 5 are arranged in a spiral shape to heat the particles 8 inside the container 9.
As the heater 5, it goes without saying that a known device such as an electric heater or a heat pipe can be used. Further, although in the embodiments it is provided inside the container, it can also be provided outside the container and heat the particles through the container. The heater 5 measures the temperature inside the container with a thermometer 6 placed inside the container, and is controlled to a predetermined temperature in conjunction with a temperature controller 7 that can set a temperature suitable for heating solid food in advance. It is set in.

The layer of particles 8 is filled to sufficiently cover the heater 5. As particles 8, the particle size is usually 0.01 to 2.
It is desirable to use spheres or lumps made of silica, alumina, glass, etc., which are millimeter in size, heat resistant, difficult to shatter even after long-term use, and can be used with a relatively small amount of air flow.

A hood 11 is provided above the container 9, and a hood 11 is provided above the container 9.
Exhaust gas is discharged to the outside through the hood 11.

Since it has the above configuration, the blower 1
While stirring the particle layer in the container 9, the particle layer 8 is heated by the heater 5. If air is not blown or stirred, local overheating will occur and must be avoided. Once the predetermined temperature has been reached, the solid food is held in a suitable state or placed in the basket 10 and submerged in the particle bed 8. It sinks easily, as if submerged in liquid, but if it is too light to sink naturally, it can be easily buried by placing it in a basket or attaching a weight to it. The baking temperature and time should be determined in advance, taking into consideration the flavor. Once the food is baked, it is removed from the container 9 and the particles are shaken off.

(Effects of the invention) With the apparatus according to the invention, solid foods can be heated uniformly, and one-sided cooking and carbonization can be avoided.

Furthermore, since temperature control can be easily and accurately performed, flavorful foods can be produced efficiently and energy consumption can be reduced. Note that solid foods that can be baked with this device include foods that can be easily separated from the particles used in this device, such as sweet potatoes, chestnuts, and dried squid.

[Brief explanation of the drawing]

The figure is a vertical sectional view schematically showing an embodiment of the solid food heating device according to the present invention. 1...Blower, 3...Blower pipe, 4...Diffusion plate, 5...Heater, 8...Particles, 9...Container.

Claims (1)

[Claims for Utility Model Registration] (1) A diffuser plate for blowing gas is provided at the bottom of a container with an open top, and heat-resistant particles are filled in the container above the diffuser plate to form a particle layer. A heater for heating the heat-resistant particles is provided inside or outside the container, and a blower pipe for supplying air from an air blower is connected to the bottom of the container. A lump solid food heating device characterized in that the solid food placed in the particle layer is heated by blowing air into the particle layer through an air diffuser plate and stirring the particle layer. (2) The bulk solid food heating device according to claim (1) of the utility model registration, characterized in that the solid food is placed in a basket and positioned in the particle layer.