JPH11314043A - Apparatus for treating bran and dust of rice mill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the diffusion of dust effectively by a method in which rice bran generated in a rice mill is conveyed pneumatically to a bran treating apparatus through a supply duct and others, air which dropped the bran downward here is discharged from an upper air outlet, and the air outlet and a duct collector are made to communicate with each other by the an air duct. SOLUTION: A box body having a rice bran treating apparatus 31 and a dust collector 35 is installed on one side of a bran receiving apparatus 24 for receiving bran generated in a rice mill, and an air inlet 32 in the upper end part of the box body and the bran receiving apparatus 24 are made to communicate with each other through a supply duct 32'. A bran receiving bag 33 for receiving falling bran is installed freely attachably/detachably on the lower side of the bran treating apparatus 31, and an air outlet 34 is formed in a ceiling part. In the dust collector 35, a partition panel 36 is installed in the middle part in order to be divided into a dust collecting chambers 37, 38, and an air inlet 39 formed in the ceiling part of the dust collecting chamber 37 is made to communicate with the air outlet 34 by an air duct 40. Besides, in the nearly middle part of the dust collecting chamber 38, an outside air suction port 41 which can be opened/closed freely by an air adjusting valve 42 is formed, and an air discharging machine 44 with a filter 43 is installed on the upper side of the suction port 41.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for treating bran generated in a rice mill.

[0002]

2. Description of the Related Art A technique is known in which bran generated in a rice mill is conveyed by air and separated into air and bran by a cyclone. This technology is widely used in milling facilities such as a milled rice vending machine for milling and selling brown rice and a so-called coin milling machine for milling by introducing brown rice brought in.

[0003]

When the bran generated in the rice mill is conveyed by air and separated into air and bran by a cyclone, the separated air contains dust that does not fall together with the bran. There is an adverse effect of being diffused to the surroundings. In particular, when the cyclone and the rice mill are provided in the same room, dust adheres to the rice mill and adversely affects the performance of the rice mill.

An object of the present invention is to prevent the diffusion of dust as described above.

[0005]

The present invention provides the following technical means in order to solve the above technical problems. That is, the bran generated in the rice mill 6 is air-conveyed to the bran treating device 31 through the supply duct 32 'and the air outlet 32, and the bran is dropped by the bran treating device 31 and the air is discharged to the upper air outlet. The rice bran and dust of the rice mill are characterized in that the air is discharged from the dust collector 34 and the air discharge port 34 and the dust collector 35 are communicated by the air duct 40 so that the discharged wind can be discharged to the dust collector 35. Processing equipment.

At this time, the rice bran treating device 31 and the dust collecting device 3
It is desirable that 5 and 5 be built in a box body.

[0007]

The bran generated in the rice mill 6 is supplied to the supply duct 3.
The air is conveyed to the rice bran treatment device 31 through 2 ′ and the blowing port 32. Then, the bran is dropped downward by the bran treatment device 31, and the air and dust are exhausted from the exhaust port 34. Then, the exhaust air is discharged to the dust collector via the air duct 40, and the dust is collected by the dust collector 35.

[0008]

According to the present invention, the dust in the air exhausted by the bran treating device 31 is passed through the air duct 40 to the dust collecting device 35.
The dust can be prevented from diffusing to the surroundings. In addition, by incorporating the bran treating device 31 and the dust collecting device 35 in the box body, it is possible to prevent the bran and dust from adhering to the rice milling device, and as one unit to various rice milling facilities and the like. It can be used.

[0009]

FIG. 1 shows a box-shaped rice milling apparatus 7 incorporating a rice mill 6 comprising a storage tank 4 for storing brown rice, a grain raising device 5, a milling device 3, and the like.
In the central part of the box of the rice milling device 7, the grain raising device 5
This grain raising device 5 is provided with a grain raising machine hopper 8 at the lower part and a belt with a bucket conveyor stretched inside,
A tank discharging cylinder 9 is provided on one of the left and right sides of the upper end to communicate with the brown rice tank 4, and a rice polishing cylinder 1 is provided on the other side.
0 is provided to communicate with the rice polishing tank 11;
A grain-raising switching valve 5 'is provided at the upper part of the grain-raising apparatus 5, and the grain-raising switching valve 5' is configured to be rotated by a grain-raising switching valve motor. The kernel is supplied to the tank ejection cylinder 9 side or the milled rice ejection cylinder 10 side, which is configured to be supplied to one of the sides,
The grain raising device 5 is configured to be rotationally driven by a grain raising motor.

On one of the left and right sides of the grain raising device 5,
A main pillar 12 is provided to be freely rotatable. The main pillar 12 is provided with a plurality of the storage tanks 4 for separately storing different varieties of brown rice,
The storage tank 4 is divided into a residual grain tank 13 for storing a small amount of brown rice and a brown rice tank 14 for storing a large amount of brown rice. An opening / closing valve 15 is provided. The tank opening / closing valve 15 is configured to be opened / closed by a tank opening / closing valve motor. A transfer gutter 16 ′ having a transfer spiral 17 ′ provided therein is provided below the tank ejection tube 9. A switching valve 16 slidably openable and closable is provided on the bottom plate at the starting end of 16 '.
Is configured to be opened and closed by a switching valve motor.
In the open state, the grains are supplied into the brown rice tank 14, and in the closed state, the grains are supplied into the residual grain tank 13,
The column 12 is configured to be driven to rotate by a column motor 17.

Below the brown rice tank 4, there is provided a weighing hopper 18 of weighing and dispensing means. The weighing hopper 18 is provided with a weighing device 19 for weighing the grains supplied into the weighing hopper 18. A weighing hopper valve 20 for opening and closing the lower portion is provided below the hopper 18, and the weighing hopper valve 20 is configured to be opened and closed by a weighing hopper valve motor. It is configured to be connected to

On the other side of the left and right sides of the grain raising device 5,
The rice polishing tank 11 having a vertical transfer spiral 11 'therein is provided, and a rice polishing tank opening / closing valve 21 for opening and closing the lower part is provided below the rice polishing tank 11; On the lower side of the rice polishing tank 11, the above-mentioned refining device 3 including a refining roll 22 for refining grains and a refining platinum net 23, and a bran receiving device 24 below the refining platinum net 23. A rice milling machine 6 comprising a rice milling motor, a discharge cylinder 25, etc., and a flow-down cylinder A, which supplies grains in a lower part of the discharge cylinder 25 in communication with the grain-raising hopper 8 of the grain-raising apparatus 5. Descending cylinders B and 27 which are supplied in communication with 26 and a product receiver 28 which receives the refined white grains.
The exhaust valve 29 is configured to be opened and closed by an exhaust valve motor. When the exhaust valve 29 is opened, the refined and refined white particles move through the falling cylinders B and 27. After being discharged to the product receiver 28, and in a closed state, the grains are separated into the falling cylinders A and 26, the grain raising hopper 8, the grain raising device 5, the rice milling cylinder 10, the rice mill tank 11, the rice milling, and the like. The kernels are sequentially circulated to the machine 6 and the discharge cylinder 25, and the grains are refined.

The discharge tube 25 is provided on one side of the discharge tube 25.
A color sorting device 30 for detecting the whitening state of the grains circulating in the inside is provided. In conjunction with the detection of the whitening state of the color sorting device 30, the discharge valve 29 of the discharge cylinder 25 is controlled to open and close to circulate. Or, it is configured to be discharged. A bran treating device 31 and a dust collecting device 35 are provided in a box provided on one side of the bran receiving device 24, and the bran receiving device 24 and an air blowing port 32 at an upper end of the bran treating device 31 are connected to a supply duct 32. The bran treatment device 31 has a configuration in which a bran receiving bag 33 for receiving the falling bran is detachably provided below the bran treatment device 31 and an exhaust port 34 is provided in a ceiling portion.

A box-shaped dust collecting device 35 is provided on the lateral side of the rice bran treating device 31, and a partition plate 36 is mounted at a central portion of the dust collecting device 35 with a predetermined gap from the bottom plate. , Dust collecting chambers A and 37 and dust collecting chambers B and 38 are formed.
9 and the exhaust port 34 of the bran treatment device 31
0, and a suction port 4 for sucking outside air is provided at substantially the center in the vertical direction on one side of the dust collecting chambers B and 38.
And a wind control valve 42 that can be opened and closed
The wind control valve 42 is configured to be opened and closed by a wind control valve motor. Filters 43, 43 are detachably provided above the wind control valve 42, and exhaust filters are provided outside the filters 43, 43. The blowers 44, 44 are provided, and the blowers 44 are configured to be rotationally driven by a blower motor.
A dust collection box 45 is detachably provided on the lower side, and a dust sensor 46 for detecting dust accumulated in the dust collection box 45 is provided.
By sucking and discharging air with the air blowers 44, 44, the bran is received by the bran receiving bag 33, small dust is received by the dust collection box 45, and the air is exhausted from the air blower 44. The exhaust air from which the bran, dust and the like are removed is discharged into the exhaust air.

On the machine wall on the front side of the rice milling device 7,
A white rice outlet 47 and an operating device 48 for taking out the polished rice are provided detachably, and the operating device 48 is a box-shaped weighing control means. Each type setting device 49 for setting Koshihikari, Sasanishiki, etc., each purchased weight setting device 2 for setting the purchase amount of 1 kg and 2 kg, each whiteness setting device 1 for setting the whiteness, the standard, etc., the whitening purchased It is provided with an amount display section 52 for displaying the designated amount, an amount display section 53 for displaying the purchase price, and the like, and the setting devices 1, 2, 49 are of a switch type.

A control device 55 comprising a CPU 54 to which the operation of each kind setting device 49, each purchased weight setting device 2 and each degree of milling degree setting device 1 is input is provided.
The CPU 54 starts the rotation of each of the motors and the like, and estimates the weight. The control device 5
The control of grain refining according to No. 5 is performed as follows.

That is, for example, for the grain variety, the variety setting device 49 at the position of Sasanishiki is operated and the purchase amount is 5 kg.
If the purchased weight setting device 2 at the position is operated and the degree of milling is operated by the milling degree setting device 1 at the standard position, these operations are input to the CPU 54, and by this input, Sasanishiki is stored. The tank opening / closing valve motor of the brown rice tank 14 is started to rotate by a pulse signal, the tank opening / closing valve 15 is controlled to open, and the lower part of the brown rice tank 14 is controlled to an open state. Is the weighing hopper 18
And the tank opening / closing valve 15 is controlled to be closed by the tank opening / closing valve motor when the basic weight is measured. And

Generally, 5 kg of grain is reduced as follows depending on the degree of whitening, but when 5 kg of brown rice is converted to upper white rice, 4.2 kg (84%) 5 kg of brown rice is converted to standard white rice. 4.5 kg (90%) If 5 kg of brown rice are skipped in 8 pieces, 4.65 kg (93%)
%) In order to reduce the reduced weight to 5 kg with the finished polished rice, the following control is performed. Since the polished degree is set to the standard polished rice, the grain amount is 5.5.
The calculation to obtain 5 kg of standard polished rice with 5 kg is performed by the prediction means of the CPU 54, and therefore, 0.55
It is calculated that an increase amount of the kernel of kg is necessary, and by transmitting the increase signal, the tank opening / closing valve motor of the residual tank 13 is rotationally controlled by a pulse signal, and the tank opening / closing valve 15 is controlled to open. The lower portion of the residual particle tank 13 is controlled to be opened, and the Sasanishiki in the residual particle tank 13 is supplied into the weighing hopper 18 by 20 g per pulse signal, and the 20 g each is supplied a predetermined number of times to increase the amount of increase. 0.55 kg is additionally supplied. When the additional supply is completed, the tank opening / closing valve motor is controlled to stop, the tank opening / closing valve 15 is controlled to be closed, and the supply of grain is controlled to be stopped. The 5.55 kg of grains supplied into the weighing hopper 18 are supplied to the rice mill 6, and are repeatedly circulated in the rice mill 6 to be milled into a set standard milled rice. And set the standard polished rice 5kg is obtained, the rice processing apparatus 7 is configured to be controlled to stop.

In the case of paddy, the reduced weight of both the reduced weight due to the hulling and the reduced weight due to the degree of whitening is taken into account, and both the basic weight and the increased weight are determined and set by the purchase weight setting device 2. It is configured to obtain a predetermined whitening weight. In addition, the control device 55 has the following functions. A wind speed detected by an anemometer 56 provided in the supply duct 32 ′ and an anemometer 57 provided in the air duct 40.
Is input to the CPU 54, and the input values are compared. Based on the comparison result, the wind control valve motor is controlled to rotate so that the difference in wind speed becomes a predetermined value or more. The opening degree of the valve control 42 is controlled so that the amount of outside air sucked in from the suction port 41 is controlled.

The operation of the above embodiment will be described below. When the customer operates the setting devices 1, 2, 49 of the operation device 48 to predetermined positions, the rice milling device 7 is started to start, and the grains of the variety set by the operation of the variety setting device 49 are removed from the brown rice tank 14. It is supplied into the weighing hopper 18 and the weighing device 19 weighs the basic weight set by the purchased weight setting device 2, and based on the degree of whitening set by the degree of whitening setting device 1, the grain of the set variety is set. The grains are supplied from the remaining amount tank 13 into the weighing hopper 18 in a predetermined increment, and the grains supplied into the weighing hopper 18 are supplied into the grain raising hopper 8, From the milling cylinder 10 to the milling device 3 of the milling machine 6 through the milling tank 11 for milling. The circulation supplied to the grain hopper 8 is repeated While, color sorting apparatus 30
Detects white grains having the same whitening degree as the whitening degree set by the operation of the whitening degree setting device 1 and pays out the finished whitening to the product receiver 28, and the paid out whitened weight is the purchased weight. The same weight as the weight set by the setting device 2 is paid out, and the rice processing device 7 is stopped.

[Brief description of the drawings]

 The figure shows an embodiment of the present invention.

FIG. 1 is a block diagram.

FIG. 2 is an entire front view of the rice milling apparatus, which is partially broken.

FIG. 3 is an overall side view of the rice polishing apparatus.

FIG. 4 is an enlarged front view in which a part of the rice polishing apparatus is partially broken.

FIG. 5 is an enlarged side view in which a part of the rice polishing apparatus is partially broken.

FIG. 6 is an enlarged front view of a part of the rice polishing apparatus.

FIG. 7 is an enlarged perspective view of a rice bran processing device and a dust collecting device of the rice processing device.

FIG. 8 is an enlarged sectional side view of the rice bran processing device and the dust collecting device of the rice processing device.

[Explanation of symbols]

 1 Degree of whitening setting device 2 Purchased weight setting device 3 Whitening device

Claims (2)

[Claims] The rice bran generated in the rice mill 6 is supplied to a supply duct 3.
2 'and the air are conveyed to the bran treatment device 31 through the blow port 32, and the bran treatment device 31 drops the bran downward,
The air is exhausted from the upper exhaust port 34, and the exhaust port 34 and the dust collector 35 are communicated with the air duct 40 so that the exhaust air can be exhausted to the dust collector 35. Rice bran and dust processing equipment. 2. The rice bran and dust treatment device for a rice mill according to claim 1, wherein the rice bran treatment device 31 and the dust collection device 35 are incorporated in a box.