JPH0611252B2 - Grain processing equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a grain processing apparatus.

(Prior Art) A device for performing a primary steaming operation, a dipping operation, and a secondary steaming operation by a single conveyor is housed in a box body (Japanese Patent Publication Sho-31-
2093).

(Problems to be solved by the present invention) However, since the exhaust wall is not provided in the upper wall that communicates the dipping device and the secondary steaming device in the device, dew condensation of steam generated on the inner surface of the upper wall causes the dipping device. May fall into. Therefore, when dust adheres to the inner surface of the upper wall, the dust may drop into the dipping device or the like together with dew condensation, resulting in deterioration of quality.

(Means for Solving Problems) The present invention provides a grain processing device capable of improving the quality of grains, and has taken the following technical means.

That is, the primary steaming device 12, the dipping device 13, and the secondary steaming device 14 are arranged in that order in the space formed by the upper wall 1 and the side walls 2 and 3 facing each other at a predetermined interval in the left-right direction. The grain processing apparatus is provided with an exhaust duct 31 on the secondary steaming apparatus 14 side and on the upper wall 1 above the dipping apparatus 13.

(Operation) The grain heated in the primary steaming device 12 absorbs water in the dipping device 13, and then is heated in the secondary steaming device 14. And
The steam of the high temperature water in the dipping device 13 is the upper wall 1 and the side walls 2,
It moves above the space formed by 3 and 3. Then, the steam reaching the upper part of the space portion is provided with the exhaust duct 31 provided on the upper wall 1.
Exhausted from.

(Effect) It is possible to stabilize the water temperature of the dipping device 13 and reduce the amount of dew condensation formed on the inner surface of the upper wall to reduce the inclusion of foreign matter and improve the quality of finished grains.

Embodiment An embodiment of the present invention will be specifically described below with reference to the drawings.

First, its configuration will be described. Steam rice cooker 10
Is a storage tank 11 capable of storing a predetermined amount of raw cereals (hereinafter, rice in the embodiment) and a primary steaming device 12.
And a dipping device 13, a secondary steaming device 14, and a conveyor 15 on which rice can be placed and conveyed.

The storage tank 11 has an upper end communicating with an immersion tank (not shown) through an appropriate conveying means, a lower end provided with a shutter (not shown) that can be opened and closed, and an inner upper end. A full sensor (not shown) that can detect fullness when a fixed amount of rice is stored is provided. When the full sensor outputs a full detection signal, the control unit (not shown, for example, a microcomputer) that receives this signal outputs an operation stop signal to the operation unit to stop the driving of the conveying means. Since it is configured as
It is possible to prevent rice from overflowing from the storage tank 11.

The steaming device 12 for first steaming the rice sent from the storage tank 11 has a small steam vent hole so that the rice does not leak, and the net type conveyor 5 is rotatably provided. A steam supply device 17 capable of supplying a low-pressure saturated steam of about 100 ° C. into a steam chamber 16 which is located below the grain transfer surface B of the conveyor 5 and which has a plurality of upper parts opened in the transfer direction. It has and.

The dipping device 13 can store the rice conveyed by the conveyor 5, and stores a predetermined amount of high-temperature water having a water temperature of about 85 ° C. through a water heater (not shown) in a water storage tank 18. And a transfer device 19 capable of transferring the rice fed into the water storage tank 18 to the secondary steaming device 14 side. The conveying device 19 includes a raw material pressing plate 2 composed of an endless belt 20 rotatably provided and rectangular stainless rods provided at predetermined intervals on the endless belt 20.
1 and.

The secondary steaming device 14 can carry the rice sent by the carrying device 19 and carry it in a predetermined direction.
At a position below the net-type conveyor 5 having a steam passage hole through which rice does not leak and the grain-conveying surface B of the conveyor 5,
Also, a plurality of them are provided in the conveying direction and the upper end portion (conveyor 5 side)
A steam supply device 23 capable of supplying low-pressure saturated steam of about 100 ° C. is provided in each of the steam chambers 22 which are opened, and the steam is heated to a temperature of about 100 ° C. or higher via heating means. Heating (in the example, about 110 ° C.)
is doing. The heating means may be a structure in which an elephine heater is provided in the steam chamber 22, a structure in which the steam chamber 22 is heated to raise the steam temperature, or a structure in which the steam is heated. An agitator 24 that can rotate in the direction of the arrow and agitate the absorbed water on the grain transport surface (i) is provided at a position above the transport start end side of the conveyor 5 in parallel in the transport direction at a predetermined interval. In addition, an ejector 25 capable of ejecting cooked cooked rice by rotating in the direction of the arrow is provided above the end of the conveyance. A discharge body 25 is provided above the conveyor 5 of the primary steaming device 12 so as to be able to send the rice steamed in the primary steam to the water storage tank 18 side by rotating in the arrow direction. Also,
Each of the steam supply device 17 and the steam supply device 23 is provided so as to be communicable with a steam regulator (not shown) capable of cleaning the steam sent from the supply source through a steam guide pipe, and temperature control is performed. It is adjusted to a predetermined temperature by means (not shown).

The conveyer 15 on which the cooked rice is placed and conveyed is rotatably provided so that it can be conveyed in the same direction as the conveyer 5 of the secondary steaming device 14. An agitator 26 that can scrape the cooked rice toward the transport direction mouth is rotatably provided at a position above the transport start end of the conveyor 15, and the cooked rice is near a transport end at a predetermined position (for example,
A conveyor 27 that conveys to the arranging portion) is rotatably provided. The stirring bodies 24 and 26 and the carry-out body 25 are radially arranged on the rotary shaft and the outer peripheral surface of the rotary shaft, and are arranged at predetermined intervals in the lateral direction with respect to the transport direction, and the tips are arranged on the grain transport surface. It has a bar located near Lee. The bar has its tip bent at a right angle in the lateral direction with respect to the grain transport direction.

Then, on both left and right ends of the grain conveying surface B of the conveyor 5,
Side walls 6 and 7 are provided, in which the upper and lower ends are bent to the side opposite to the grain and the upper end of the inner wall is positioned higher than the upper end of the grain. The lower bent portions of the side walls 6 and 7 are detachably attached to the bent portions formed by bending the upper end portions of the left and right side walls of the steam chamber 16 outward with a stopper 28. Further, the upper wall 8 having the steam holes 29 is detachably provided on the upper side of the outer walls 6 and 7, and the space portion 9 is provided above the grains while accommodating the grains. In addition, the upper wall 8 is a primary steaming device 12
In the secondary steaming device 14, one end is located above the steam chamber 16 on the storage tank 11 side and the other end is formed to cover the discharge body 25. It is formed to cover the body 25.

Although the upper wall 8 is placed on the side walls 6 and 7 in the embodiment, the upper wall 8 may be configured to be openable / closable via the opening / closing tool and may be detachably configured via the stopper. If the upper wall 8 is divided into a plurality of pieces, it is convenient for transportation and inspection. Further, the upper wall 8 is formed in a roof shape (see FIG. 3), is formed in an arc shape (see FIG. 4), and is formed with left and right bulging portions (see FIG. 5).
You may. The side walls 2 and 3 are detachably provided on the columns 30 installed on both the left and right sides of the conveyor 5 with the stoppers 31a. An upper wall 1 is detachably provided on a column 30 or another column (not shown) above the side walls 2 and 3, and a space 4 formed by the upper wall 1 and the side walls 2 and 3 is provided. Interior of the conveyor 5. Then, the space portion 4 has steam holes 29.
And communicates with the space portion 9 through. The upper wall 1 is provided with an exhaust duct 31 capable of exhausting the steam in the air section 4 to the outside of the machine. The exhaust duct 31 communicates with an exhaust fan (not shown) via an appropriate means.

Further, the respective space portions 4 of the primary steaming device 12 and the secondary steaming device 14 are configured to be able to communicate with the dipping device 13.

Next, the operation will be described.

First, when the shutter is opened, the pre-soaked rice stored in the storage tank 11 falls on the grain transfer surface B of the conveyor 5, and the soaking device 13 makes a predetermined layer thickness by the conveyor 5. Be transported to the side. And
During this transportation, the steam supply device 17 causes the steam chamber 16
It is heated by being bathed in low-pressure saturated steam at a temperature of about 100 ° C. which is supplied inside and floats up through the steam passage holes of the conveyor 5. Then, the rice fed into the water storage tank 18 from the transport end of the conveyor 5 is transported to the secondary steaming device 14 side by the raw material pushing plate 21 of the transport device 19 while absorbing the high temperature water. It should be noted that from the transport end of the conveyor 5 to the water tank 18
When the rice is fed into the inside, the discharge body 25 performs an auxiliary work for the feeding, so that overheating due to the stagnation of the rice can be prevented.

Then, the water-absorbed rice discharged from the end of the water storage tank 18 is conveyed to the conveyor 15 side on the grain conveying surface a of the conveyor 5 of the secondary steaming device 14 and, at the time of this conveyance, the agitator It is agitated by 24 and becomes a fluffy and highly loaded state. Further, during the transportation, the low-pressure saturated steam of about 110 ° C. supplied to the inside of the steam chamber 22 by the steam supply device 23 passes through the steam passage holes of the conveyor 5 and hits the fluffy, highly stacked rice to cook it. increase.

Then, when the cooked rice reaches the end of the conveyance, it is sent from the conveyor 5 to another conveyor 15 by the discharging body 25 and further conveyed in a predetermined direction. It is scraped in the direction. After that, the cooked rice discharged from the conveyor 15 is received by the conveyor 27 and conveyed to a predetermined place (for example, the arranging section).

Then, in the primary steaming device 12 and the secondary steaming device 14, the steam that has heated the rice and reached the space portion 9 has steam holes 29.
To the space section 4 and then discharged from the exhaust duct 31 to the outside of the machine. In this case, steam is trapped in the respective space sections 4 and 9. The temperature of the steam trapped in the space 9 is lower than the temperature of the steam when passing through the steam passage holes of the conveyor 5 by several degrees Celsius, but the temperature of the steam is still high. To be done. Therefore, the quality of grains can be improved. In addition, since the steam in the space portion 4 can exert a heat insulating effect on the periphery of the space portion 9, it is possible to prevent a decrease in product value due to variation in quality due to the influence of the outside air temperature.

Then, the primary steaming device 12 and the secondary steaming device 14 heat the rice with low-pressure saturated steam, and then the secondary steaming device 1
Since the temperature of the low-pressure steam in 4 is set higher than the temperature of the low-pressure steam in the primary steaming device 12 by the heating means, it is possible to obtain cooked rice having improved stickiness and tasting.

Further, the steam of the high temperature water in the water storage tank 18 rises above the space formed by the upper wall 1 and the side walls 2 and 3, and the exhaust gas provided on the upper wall where the dipping device 13 and the secondary steaming device 14 communicate with each other. It is exhausted through the mouth and through the exhaust duct 31. Therefore, the water temperature of the high-temperature water can be stabilized, a large amount of dew condensation can be prevented, and high quality rice can be cooked.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is an overall side view, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3, FIG. 4 and FIG. This is an example. 1 is an upper wall, 2 and 3 are side walls, 12 is a primary steaming device, 13 is a dipping device, 14 is a secondary steaming device, and 31 is an exhaust duct.

 ─────────────────────────────────────────────────── --Continued from the front page Judge, Kazumi Kawamukai (56) References JP-A-61-94615 (JP, A) JP-A-61-112737 (JP, U)

Claims (1)

[Claims] 1. A primary steaming device 12, a dipping device 13, and a secondary steaming device 14 in a space formed by an upper wall 1 and side walls 2 and 3 facing each other at a predetermined interval in the left-right direction. Are provided in that order, and an exhaust duct 31 is provided on the secondary steaming device 14 side and on the upper wall 1 above the dipping device 13.