JPH01171467A - Roaster for beans or the like - Google Patents

Abstract

PURPOSE:To compact an apparatus, reduce heat quantity consumption and improve deodorizing efficiency, by providing a deodorizing chamber in a flue gas passage in a roaster and heat insulating roasting chamber and regulating inflow rate of roasting hot air flowing into a roasting drum. CONSTITUTION:An air-permeable roasting drum 3 having an inflow rate of roasting hot air regulated by a hot air inlet 302 is rotatably provided in a heat insulating roasting chamber 2 installed in a roaster 1. A flue gas passage 4 communicating with a flue gas port 301 of the roasting drum 3 is also provided with a deodorizing chamber 5 in the course of the flue gas passage 4. Soybeans, coffee beans, etc., are fed to the roasting drum 3 and a heat source 7 is ignited. Roasting hot air at the regulated inflow rate is made to flow into the roasting drum 3 and hot air without flowing into the drum 3 is introduced into a roasting chamber 2 to roast beans, etc., while keeping the drum 3 warm. Smoke and offensive smell emitted by the roasting are passed through the deodorizing chamber 5, decolored and deodorized.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to roasting or roasting of soybeans, coffee beans, other beans, grains such as pigeon wheat (hereinafter, these beans and grains are referred to as beans, etc.). / and related to improvements in drying equipment.

Conventional technology A roasting machine and a deodorizing machine are installed separately and communicated with each other, and the entire amount of hot air for roasting is allowed to flow into the roasting drum of the roasting machine, and the smoke and odor generated by roasting are removed by the deodorizing machine. is sent to the catalyst chamber.

Problems to be Solved by the Invention Since a large amount of smoke and odor are sent into the catalyst chamber, a large amount of catalyst is required, and a heat source dedicated to the catalyst for heating a large amount of catalyst is a heat source dedicated to roasting. This also increases the amount of heat used, which is not in keeping with the current trend toward resource and energy conservation. In addition, the entire system consisting of a roasting machine and a deodorizing machine has become larger, which makes maintenance difficult and requires installation in a narrow space.

The present invention has been made in view of the above circumstances, and provides a roasting apparatus that can be made compact by providing a deodorizing system within the roasting system, and that can reduce the amount of heat consumed and the installation area; In terms of pollution prevention, such as colorless and odorless, the aim is to provide a roasting device that exhibits deodorizing functions that are comparable to conventional deodorizing machines.

Means for Solving the Problems The present invention proposes a means in which a deodorizing chamber of a deodorizing system is disposed in a smoke exhaust passage in a roasting system of a roasting machine.

Operation According to the present invention, when the heat source is ignited, hot air that does not flow into the roasting drum is stored in the insulated roasting chamber to keep the interior warm. On the other hand, a regulated amount of roasting hot air flowing into the roasting drum roasts beans, etc., and smoke and odor generated by roasting flow out from the smoke exhaust port of the roasting drum to the smoke exhaust path. Then, the smoke and odor in the smoke exhaust passage pass through the deodorizing chamber and are discharged after being made colorless and odorless.

The roasting machine (1) of the embodiment has an adiabatic roasting chamber (2) in the upper part, a roasting drum (3) rotatably arranged in the roasting chamber, and smoke exhaust from the roasting drum. A smoke exhaust path (4) communicating with the mouth (301) is configured from the roasting chamber (2) to the lower exhaust fan chamber (6) to remove smoke and odor generated in the roasting drum (3) during roasting. It is configured so that it can be forcibly discharged.

In order to obtain the amount of heat necessary for roasting, the roasting machine (1) has a heat [(7) installed below the roasting chamber (2) and the deodorizing chamber (5),
The structure is configured so that hot air can flow into the roasting chamber (2) and the inside of the deodorizing chamber (5) can be heated. The roasting chamber (2) is constructed with a heat insulating material (201) (for example, ceramic fiber, etc.) of an appropriate thickness on the inner surface of the upper frame plate of the roasting machine (1). A smoke exhaust passage (4) is configured in the roasting drum (3).
1). The roasting drum (3) has a small-area roasting hot air inlet (302) at the rotating shaft attachment part on the first side wall.
The inflow rate of roasting hot air is regulated so that the entire amount of hot air supplied from the heat source (7) does not flow into the drum, and a smoke exhaust port (301) is provided in a part of the other side wall. It is configured to provide ventilation and allow smoke and odor during roasting to be discharged from the smoke exhaust port (301) into the smoke exhaust path (4). Roasting drum (
3) is rotatably arranged in the roasting chamber (2), stores the hot air that does not flow into the drum in the roasting chamber (2) to keep it warm, and reduces the amount of roasting hot air that flows into the drum. In addition to making it possible to roast efficiently even under the regulations, the amount of smoke and odor generated during roasting is greatly reduced by regulating the inflow of roasting hot air, thereby improving the deodorizing efficiency of the deodorizing chamber (5). The roasting chamber (2)
The heat source (7) is configured so that it can contribute to fuel efficiency savings by improving heat retention due to the heat insulation properties of the heat source (7). The smoke exhaust path (4) passes through the heat insulating material (201) of the roasting chamber (2) and reaches the exhaust fan room (6)K, but a deodorizing room (5) is arranged in the middle thereof,
The structure is such that smoke and odor generated during roasting in the roasting drum (3) can pass through the deodorizing chamber (5). Deodorizing room (5
) is formed into a box shape and has an intake port (501) for smoke and odor, which communicates with the smoke exhaust path (4) at the bottom of one side wall, and communicates with the smoke exhaust path (4) at the top of the other side wall. Outlet (5
02) is opened, and a catalyst box (503) is installed and configured inside. The deodorizing chamber (5) is installed obliquely above the heat source (7) in the roasting machine (1), and the intake port (501) and the exhaust port (502) are connected to the smoke exhaust path (4) 1/c, In addition to widening the contact area with the smoke and odors generated during roasting, the smoke and odors are made easier to pass through, and also contributes to the miniaturization of the entire device. ) The smoke and odor taken in from the exhaust port (502) are passed through the catalyst box (503) in a meandering manner.
) and discharged into the smoke exhaust path (4). When installing the deodorizing chamber (5) obliquely, the intake port (5)
01) is installed diagonally so that it communicates with the upper side of the smoke exhaust path (4), and the exhaust port (5og) communicates with the lower side of the smoke exhaust path (4), respectively.
From the intake port (501) at the bottom of the side wall to the catalyst box (5O3
), and when the smoke and odor rise due to the heat, they must pass through the catalyst box (503) and become colorless and odorless before being discharged from the outlet (so
2) The flow flows meanderingly in the direction of g, and the discharge port (502
) to the smoke exhaust path (4). The catalyst box (503) in the deodorizing chamber (5) has a lattice frame filled with a catalyst (for example, palladium, etc.), and filters are placed on both the top and bottom of the lattice frame to prevent the catalyst from leaking. Construct so that smoke, odors, etc. can pass through. However, the arrangement of the deodorizing chamber (5) is not limited to diagonal installation, and even if it is arranged horizontally, there will be no difference in the deodorizing effect, but considering the miniaturization of the entire device. In such cases, diagonal installation seems preferable. fever [(7)
is a roasting chamber (2), a roasting drum (3) in the roasting chamber,
The purpose of the deodorizing chamber (5), etc. is to heat the inside of the roasting machine (1), but the deodorizing chamber (5) is also used to supply a small amount of heat necessary to maintain the constant temperature after the internal temperature reaches a constant temperature.

In the figure, reference numeral (8) is the outside air suction section, which is used to mix outside air into the hot, colorless and odorless exhaust gas flowing down from the deodorizing chamber (5), lower the temperature, and then discharge it. . Symbol (9) is a damper installed at the end of the exhaust port of the smoke exhaust path (4), and even if the exhaust port of the smoke exhaust path (4) is closed when roasting is not being performed, it does not seal, and a small amount of gas is emitted. It is configured so that a gap (9 o 1) is formed, and even if the exhaust port of the smoke exhaust path (4) is closed, the roasting drum (3), the smoke exhaust path (4), the deodorizing chamber (5), etc. The hot air accumulated inside the roasting machine (1) is discharged between 11 (o
A small amount of hot air is discharged from the ol) to prevent a state of deficient nitrogen due to the above-mentioned internal hot air not being discharged.

Although not shown, a heat insulating material of the same quality as the above heat insulating material is provided on the inner surface of the frame plate of the roasting machine (1) at a portion near the deodorizing chamber (5), heat source (7), etc. If both the chamber (2) and the chamber (2) have an insulating structure and improve heat retention, the deodorizing efficiency of the deodorizing chamber (5) will be increased and its life will be extended, and the heat source (7)
This is even more advantageous in terms of fuel efficiency, etc.

Effects of the Invention Since the present invention is constructed as described above, it has the following effects.

First, by arranging the deodorizing chamber in the smoke exhaust path inside the roaster, the entire device can be made more compact and requires less space to install.

By providing an insulated roasting chamber in the roasting chamber, heat retention is improved, and even if the amount of roasting hot air flowing into the roasting drum is regulated, roasting can be performed efficiently, and the amount of heat consumed is reduced. .

Thirdly, since the amount of roasting hot air flowing into the roasting drum is regulated, the amount of smoke and odor generated during roasting is reduced, the amount of deodorization processing by the deodorization chamber is reduced, and the deodorization efficiency is improved. In addition to having advantages such as long-term performance of the deodorizing function and deodorizing function, the smoke and odor can be discharged in a colorless and odorless state, and the deodorizing function is comparable to that of conventional deodorizing machines.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view of the essential parts of the roasting apparatus of the present invention, Fig. 2 is a longitudinal sectional side view of the essential parts, Fig. 3 is a longitudinal sectional front view of the deodorizing chamber, Fig. 4 is its left side view, and Fig. 5 is FIG. In the diagram (1) - Roasting machine (2) - Roasting chamber (3) - Roasting drum (301) - Smoke exhaust port (4) - Smoke exhaust path (5) - Odor exhalation Room 3
Figure 4Figure 2

Claims (1)

[Claims] An air-permeable roasting drum that regulates the amount of roasting hot air flowing into the roasting machine is rotatably installed in an insulated roasting chamber, and a smoke exhaust port is connected to the smoke exhaust port of the roasting drum. A roasting device for beans, etc., in which a passage is provided in the roasting machine, and a deodorizing chamber is placed in the middle of the smoke exhaust passage.