JPS6242718Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a roaster for roasting or drying grain raw materials such as soybeans, rice, barley, and coffee beans.

In the prior art, a rectifying plate with a large number of through holes is made to be freely angularly displaceable around a horizontal axis of rotation, and the raw material on the rectifying plate in a horizontal position is flowed by high-temperature exhaust gas from below the rectifying plate. After the roasting is completed, the current plate is tilted,
Discharging roasted raw materials. When the current plate is in an inclined position, the raw material on the current plate spills from the side of the current plate and falls. The raw materials spilled in this way will be combusted during the next roasting operation, causing a fire.

Another prior art for solving such problems is that, as shown in FIG. In the illustrated tilted position, a discharge chute 53 formed roughly in a U-shape for guiding the raw material covers and supports both sides of the current plate 51. As a result, the raw material to be discharged is moved to the rectifying plate 5 whose inclined position is 52.
This prevents the raw materials above No. 1 from spilling from the sides and falling. In such prior art, the high-temperature exhaust gas from the combustion chamber 54 is placed on the rectifier plate 51 in a horizontal position.
A smooth flow is prevented by the discharge chute 53. Therefore, it becomes difficult to uniformly fluidize the raw material on the baffle plate 51 within the roasting chamber 55. In addition, the rectifying plate 51 in a horizontal position is indicated by reference numeral 52.
During the angular displacement movement in which the rectifying plate 51 is in an inclined position as shown in FIG. .

An object of the present invention is to provide an improved roaster in which the baffle plate is tilted to prevent the raw material from spilling from the sides when the raw material is discharged.

FIG. 2 is a longitudinal sectional view of an embodiment of the present invention,
FIG. 3 is a simplified plan view thereof. A combustion chamber 2 of the main body 1 is equipped with a burner 3, and a current plate 4 is arranged above the combustion chamber 2. A roasting chamber 5 is formed above the current plate 4 in the main body 1 .
The baffle plate 4 is placed almost horizontally during roasting, so that the grain raw material to be roasted remains on the baffle plate 4. An input chute 6 for grain raw materials is formed above the current plate 4. The grain raw material inputted from the inputting chute 6 passes through a damper 7 that can be opened and closed and stays on the current plate 4. The grain raw material on the baffle plate 4 is fluidized by the high-temperature gas from the combustion chamber 2, and a fluidized bed 8 is formed.

A part of the exhaust gas from the roasting chamber 5 passes through the pipe 9,
It is released into the atmosphere from the conduit 10. The remainder of the exhaust gas from the pipe 9 is transferred to the pipe 11 from the outside via the pipe 12.
The air is sucked in by the suction fan 13 together with the atmospheric air passing through the air, and is guided into the combustion chamber 2 through the pipe line 14. The burner 3 is supplied with gas or liquid fuel and also with combustion air. An openable and closable lid 15 is provided above the combustion chamber 2 of the main body 1, and the current plate 4 and the like can be maintained by opening the lid 15. By mixing external air into the pipe line 11 from the pipe line 12, the suction fan 13
The temperature of the gas sucked in decreases, and the raw material on the baffle plate 4 during roasting can be reliably fluidized with a large amount of gas.

One right side portion of the rectifying plate 4 in FIG. 1 is angularly displaceable by a hinge pin 16 having a horizontal axis of rotation. When the current plate 4 is angularly displaced and is in the inclined position shown by the imaginary line 17,
The end 18 of the baffle plate 4 is supported by a discharge chute 19. The discharge chute 19 is connected to a discharge port 20 formed in the main body 1. This discharge chute 19 is provided with a gate 21 that can be opened and closed. The roasted raw material is discharged from the discharge chute 19 when the baffle plate 4 is in the inclined position indicated by reference numeral 17.
It is discharged to the outside through the discharge port 20.

FIG. 4 is a simplified sectional view taken along the section line - in FIG. 1. In the roasting chamber 5, an upper part of a guide member 32 that hangs downward is fixed to a side wall 31 having a plane perpendicular to the axis of rotation of the hinge pin 16. Between the side wall 31 and the guide member 32, a raw material fall prevention plate 33 is guided so as to be vertically displaceable. The lower end surface of this raw material fall prevention plate 33 is always in contact with the upper side of the rectifying plate 4 .

When the rectifying plate 4 is angularly displaced around the hinge pin 16 and assumes an inclined position as shown by reference numeral 17, the raw material fall prevention plate 33 is positioned as shown by an imaginary line 34. The upper part of the end 33a on the discharge port 20 side of the raw material fall prevention plate 33 remains within the roasting chamber 31 even when the current plate 4 is in the inclined position 17, so that the raw material on the current plate 4 is This prevents it from spilling from the side of 4. This side part 33
A is inclined in the direction opposite to the discharge direction (to the right in FIG. 2) as it goes upward. Therefore, when the current plate 4 is in the virtual inclined position 17a, the side portion 3
3a is prevented from hitting the side wall 35 of the roasting chamber 5 on the outlet 20 side. In this way, the lower end of the raw material fall prevention plate 33 remains in contact with the upper surface of the rectifying plate 4, regardless of its orientation, and the raw material is reliably prevented from spilling.

The exhaust chute 19 is formed relatively small so that the exhaust gas from the combustion chamber 2 is guided to the rectifier plate 4 in a horizontal position without being filled.

As described above, according to the present invention, the raw material fall prevention plate is always in contact with the upper surface of the current plate at both ends of the rotation axis of the current plate, so that the raw material on the current plate does not spill to the side. can definitely be avoided.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a part of the prior art, FIG. 2 is a longitudinal sectional view of an embodiment of the present invention, FIG. 3 is a simplified plan view of the embodiment shown in FIG. 2, and FIG. The figure is the second
It is a sectional view seen from the cutting plane line - of the figure. 1... Main body, 2... Combustion chamber, 4... Rectifier plate, 5
... Roasting chamber, 16 ... Hinge pin, 19 ... Discharge chute, 20 ... Discharge port, 27 ... Seal piece,
32... Guide member, 33... Raw material fall prevention plate.

Claims (1)

[Scope of utility model registration request] Between the combustion chamber equipped with a burner and the roasting chamber above it, one side of a rectifier plate having a large number of through holes is supported so as to be angularly displaceable around the horizontal axis of rotation. A horizontal position for retaining raw materials and a tilted position for discharging raw materials are possible.At both ends of the rotation axis of the current plate, there are material fall prevention plates that are in constant contact with the top surface of the current plate and are movable up and down. A roaster that is characterized by being