JPS5815111B2 - roasting machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a roasting machine for barley tea, brown rice tea, green tea, haujicha, etc., and particularly relates to a new configuration of a roasting drum in a rotary set roasting machine. be.

When processing this kind of material to be roasted, it is placed in a rotating roasting drum or a roasting residue, and then roasted for a certain period of time.

In this process, sand heated to about 400 degrees Celsius is mixed into the object to be roasted, and the heat of the sand is used to roast the object.

However, with this method, granular sand gets mixed into the product, and especially since this type of product is a food product, the method of mixing sand is not sanitary and is subject to recent legislation. It has come to be restricted.

Therefore, the development of a roasting device that can replace the conventional method of mixing sand and roasting has become an essential issue.

The present invention was developed in response to the demands of the industry, and is characterized by a rotary roasting machine, in which a large number of projections for promoting roasting are provided in the roasting drum. This allows the stacked objects to be roasted to be effectively heat-treated.

The present invention will now be explained in detail based on the illustrated embodiments. Reference numeral 1 denotes a roasting machine according to the present invention, which is referred to as a rotary set.

For example, this product has a hopper, a conveyor,
A supply device 2 for the roasted material A consisting of a chute is provided, and a receiving device for the roasted material after roasting (hereinafter referred to as product A') is provided at a later stage, although not shown.

As an example, the roasting machine 1 has main equipment housed in a housing 3 having a semicircular cross section at the top, and a roasting drum 4 is rotatably supported above.

This roasting drum 4 has a cylindrical shape, and one side is an inlet 5 for the roasted material A, and the other side is an outlet 6.

The end faces of both sides are shown cut-off to clearly illustrate the internal structure, but in reality, they are cut off to prevent the internal hot air from escaping wastefully, or to prevent products from falling on the outlet side. The end face is somewhat closed to prevent it from getting wet.

On the side of the outlet 6, a mesh shell 7 for removing the product is provided integrally with the roasting drum 4, and a collecting section 6 for preventing adhesion, which will be described later, is connected thereto.

On the other hand, inside the roasting drum 4, for example, a spiral guide plate 9 is continuously provided from the input port 5 to the output port 6.

Along with this, there are many roasting promotion protrusions 1 inside the roasting drum 4.
Many 0's are planted.

As shown in FIG. 2, this is a hollow cylindrical body whose distal end is closed and whose proximal end communicates with the outer peripheral side of the roasting drum 4.

Incidentally, when configured in this way, the hot air enters even into the hollow portion 10' of the roasting promotion protrusion 10, which is preferable in that the roasting promotion protrusion 10 is effectively heated.

Furthermore, inside this roasting drum 4, there is the following roasted material A.
An anti-stick (sticking) prevention device 11 is provided.

This device operates by circulating anti-fouling steel balls 12, and a steel ball return pipe 13 is provided in the center of the roasting drum 4.

This is a tapered pipe with a larger diameter on the input port 5 side, and has a drop port 14 on the input port 5 side, while a recovery trough 15 is provided in the steel ball return pipe 13 on the output port 6 side. The tip rotates while rubbing against the inside of the collecting section 8.

This turning may be done together with the steel ball return pipe 13, or only the recovery trough 15 may be made alone.

Or the whole (recovery trough 15 and steel ball return pipe 1
3) may rotate together with the roasting drum.

However, anti-stick steel balls 12 in the roasting drum 4 of the lever
The circulation mechanism is not necessarily limited to this embodiment, and the steel balls 12 collected from the outlet side of the roasting drum 4 are conveyed to the input port by an appropriate packet conveyor or the like, and then transferred to the roasting drum 4 again. All you have to do is put it inside.

Furthermore, this device is provided with a mechanism that performs the following heating action.

That is, there is a constant heating space 16 between the roasting drum 4 and the housing 3.
As an example, several combustion gas guide plates 17 are provided to partition the heating space 16.

A burner 18 as a heat source is installed below the housing.

Therefore, the hot air from the burner 18 is transferred to the combustion gas guide plate 17.
This moves in a zigzag pattern as shown by arrow H in the figure to evenly heat the area around the roasting drum 4.

However, the following equipment is provided to discharge the hot air.

Reference numeral 19 denotes an exhaust duct, which is arranged so as to collect exhaust gas from the upper rear end of the casing 3 and the rear end of the roasting drum 4. Merge into 2a.

Incidentally, as a result of this, the shoe 2a is preheated by the exhaust hot air.

An exhaust fan 20 is installed above this chute 2a according to the usual method.
A cooling shower 21 is provided at the front stage thereof.

The present invention has the configuration as described above,
It operates as follows to process the roasted material.

First, when starting the operation, the burner 18 is ignited and the roasting drum 4 is rotated to heat it.

At this time, this hot air flows as shown by arrow H and heats up.

When the roasting drum is heated to a state where it can be processed, the to-be-roasted material A is fed into the roasting drum 4 from the supply device 2.

In such a case, the roasted material A comes into contact with the inner surface of the roasting drum 4 and is heated, and also comes into contact with the roasting promotion protrusions 10 installed therein, resulting in more effective processing. be.

That is, as shown in FIG. 3, even if the objects A to be roasted are in a stacked state, the roasting promotion protrusion 10 moves to push through the layers, so that the objects A to be roasted can be processed evenly. It will be done.

The roasted material A thus roasted is guided by the guide plate 9 and processed toward the outlet 6.

Thereafter, the product becomes product A', which falls downward from the product removal screen barrel 7 and is taken out.

On the other hand, during such a roasting process, the roasted material A may be scorched on the inner surface of the roasting drum 4 when it receives heat from the roasting action part, but at this time, the roasted material A may be mixed into the roasting drum 4. The anti-adhesion steel balls 12 rolling with the rotation of the roasting drum 4 collide with the objects A to be roasted and act to peel them off.

Particularly in the case of the present invention, in which the roasting promoting protrusion 10 is present on the inner surface of the roasting drum 4, the roasted material A is likely to be scorched, and such a device is more preferable.

When the anti-fouling steel balls 12 gradually reach the exit side together with the product, they do not fall in the product retrieval screen barrel 7, but reach the collection section 8, where they are collected by the rotation of the collection trough 15, and the copper balls are returned. It is returned to the input port through the pipe 13 and is gradually used for circulation.

As described above, the present invention has a large number of protrusions for promoting roasting formed in the roasting drum 4, so that the contact with the objects to be roasted is further improved and even when the objects to be roasted are stacked. This is stirred by scraping it aside, allowing for effective roasting.

Furthermore, in the present invention, the roasting promotion protrusion is configured in a hollow shape, and since it is effectively heated, it not only stirs the roasted material but also actively roasts it, resulting in more effective roasting. can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing the roasting machine of the present invention;
The figure is a cross-sectional view showing the roasting promoting protrusion of the present invention, and FIG. 3 is a cross-sectional view showing the roasting action state. 1: Roasting machine, 2: Supply device, 3: Housing, 4: Roasting drum, 5: Inlet, 6: Outlet, 10: Roasting promotion protrusion, A
: roasted object, A': product.

Claims (1)

[Claims] 1. A roasting drum is rotatably supported against the casing, hot air is passed around the outer periphery of the roasting drum to heat the roasting drum, and the material to be roasted is transferred from the input port of the roasting drum, and the material to be roasted is gradually heated. In an apparatus in which the product is processed so that it does not come out from the outlet, a large number of roasting promotion protrusions are provided on the inside of the roasting drum, and each of the roasting promotion protrusions is a hollow cylinder with its tip closed. A roasting machine characterized by its body.