JPH01135546A - Wet milling method and apparatus - Google Patents

Abstract

PURPOSE: To efficiently produce flour having a high commercial value by subjecting the comminuted matter during a comminuting stage to humidification at the time of stepwise comminuting and sieving wheat grains, removing the hulls thereof, taking out the albumens and extracting the flour in a powdery form. CONSTITUTION: The comminuted matter during the comminuting stage is subjected to humidification by, for example, a humidification device 49 at the time of stepwise comminuting and sieving the wheat grains, removing the hulls thereof, taking out the albumens and extracting the flour in the powdery form. Namely, the moisture to be lost during the passage, many times, of the comminuted matter through the roll machines, transporting machines, classifying devices or the like in the comminuting stage is replenished so that the wheat grains have the moisture content optimum for comminution at all times at the time the wheat grains are crushed or powdered by the respective roll machine, by which the toughness of the hulls (bran) of the wheat grains is maintained and the albumens are made soft. The fine segmentation of the hulls and the intrusion thereof into the albumens do not occur. The soft albumens having high purity and good quality are taken out and the flour having the high commerical value may be efficiently produced in a high yield.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to the milling of wheat and the like, and particularly to a wet milling method and apparatus.

[Conventional technology]

Flour milling is the process of grinding wheat, etc. to produce the product, the endosperm (84.0% by weight), the skin (13.5% by weight), which is made up of several layers outside the endosperm, and the germ. The endosperm is collected in powder form while separating the ash (2.5%) and the skin, which contains a lot of ash (defective components), in powder form. It is very difficult to separate the skin into two parts, and the collection rate (yield) of products with relatively little skin part contamination is usually about 75%.

By the way, in order to increase grinding efficiency and improve yield,
Usually, the moisture content of raw wheat (11-13%) is pre-treated for flour milling.
) to 15-16%, which is the optimum moisture content for grinding, water addition and tempering are performed. That is, in addition to washing the carefully selected wheat grains (hereinafter referred to as "raw materials") by adding water using a washer, they are placed in a raw material tank and left to rest at room temperature for 24 to 48 hours. This allows moisture to slowly penetrate into the wheat (tempering). In this way, the moisture-adjusted wheat grains are further subjected to a heating and tempering process (conditioning) to improve millability and secondary processability, and then water is added again before entering the grinding process. .

[Problem that the invention seeks to solve]

In this way, tempering before grinding softens the endosperm and strengthens the skin, preventing damage to the skin and making it easier to separate the skin from the endosperm. However, during the grinding process, the endosperm and the skin are crushed and crushed many times by rolls, and passed through a sifter and a beurifier many times. Water is gradually released from the mustard,
The effect of adding water in the pre-grinding process such as the above-mentioned tempering and conditioning is weakened. As a result, the peeling of the skin from the endosperm becomes difficult, and the skin is finely damaged, resulting in incomplete separation from the endosperm, which lowers the product value.

The present invention aims to solve this problem, and its technical problem is to provide a more efficient wet milling method and apparatus.

Means for Solving Problem C) In order to solve the above-mentioned problem, the wet milling method of the present invention applies humidification to the ground material during the grinding process, and the raw material used for grinding is refined barley. It is effective if the

As a method of polishing, the surface of the wheat grains may be polished by grinding the surface of the grain using a grinding method and then humidifying the grain, or by peeling off the surface of the raw wheat using a friction method and then grinding. You can also do that.

Alternatively, after adding water, the barley may be refined, and the refined raw material may be ground.

The apparatus for carrying out the wet milling method includes a crushing roll machine, a shifter attached to the crushing roll machine,
It consists of a milling fire, a crushing roll machine, and a shifter attached to the crushing roll machine, and a humidifying device for the crushed material is provided directly to the crushing roll machine, the crushing roll machine, or the crushing roll machine and the crushing roll machine, or in the flow path leading to them. It is effective to install a wheat milling device in which a milling chamber is formed by installing a milling trochanter in a bran removal tube in the pre-process of the crushing roll machine.

Examples of barley milling equipment include those consisting of a grinding type barley mill and a humidifying barley mill, or those consisting of a friction type barley mill and a grinding type #I barley machine.

In addition, a water adding device, a barley polishing device, and a tempering device can be sequentially provided in the preceding process of the crushing roll machine serving as the first brake.

Further, the humidifying device may be equipped with an ultrasonic vibration element or may include a two-fluid nozzle.

[For production]

The wet rice milling method or wet rice milling apparatus configured as described above has the following functions.

A crushing roll machine grinds the raw material in stages to extract the endosperm as coarse particles, and the endosperm particles are classified by size by a shifter attached to the crushing roll machine.
After only the endosperm particles have been carefully selected and purified by the brewer, they are crushed by a crusher Searle machine, and the powder is extracted by a shifter attached to the crusher roll machine. The ground material is humidified by a humidifier equipped with an ultrasonic vibration element or a two-fluid nozzle, which is directly connected to the roll machine or in a flow path leading to the roll machine,
It works to replace the moisture lost during passage through the shifter and billifire.

A whitening machine installed before the crushing roll removes the skin other than the vertical grooves on the belly surface of the raw material, and then the crushing roll machine,
A sifter, a pulverizer, a grinding roll machine, and a sifter attached to the sifter perform crushing, classification, and removal of the skin of the vertical grooves, as well as crushing and extracting the powder.

When the refined barley is ground and humidified in parallel, the raw material comes into contact with the small cutting edge of diamond sand on the circumference of the grinding milling trochanter, which rotates at a relatively high speed, and the skin of the raw material becomes extremely fine mainly due to the impact action. After being crushed and scraped off, the wheat grains are moistened and polished to soften the skin (bran) that adheres to or remains on the surface of the wheat grains and removes them together with water.

When the grinding method and the friction method are used together, in the relatively high-pressure milling chamber, grain-by-grain friction caused by the stirring action of the stirring protrusions of the milling trochanter causes hard hair mushrooms on the surface of the wheat grains to be removed. After removing the skin, the impact action of the grinding trochanter acts to scrape off the skin.

In addition, the raw material whose skin has been softened by adding water is removed with water by refined barley, and furthermore, after the water is tempered to a state that is optimal for milling and has a uniform intragranular distribution, Similarly, the top powder is extracted by each roll machine and its associated sifter and eliminator.

[Embodiments of the invention]

Hereinafter, preferred embodiments of the present invention will be described based on the drawings. In FIG. 1, the pre-grinding process 1 is composed of a water adding device 3, a barley polishing device 4, and a tempering device 5, and will be explained in order starting from the water adding device 3. The water adding device (dampener) 3 consists of a trough 8 having a supply port 6 and a discharge lower, a screw 9 suspended horizontally in the trough 8, and a water adding section 10 attached to the trough 8. A connected fountain nozzle 12 is provided and configured to add water to the stock in the trough 8. In addition, a solenoid valve 13 that can adjust the flow rate is provided in the waterway leading from the water tank 11 to the fountain nozzle 12.
, and a heater 14 for heating the supplied water.

Next is the rice polishing device 4 (see Figure 3).
and the water adding device 3 are connected by a fried grain 115. The barley milling device 4 of this embodiment includes a grinding barley mill 16 and a humidifying barley mill 17.
First, the grinding type barley mill 16 will be explained. The grinding type refined barley 116 is a rice bran removal cylinder 1 consisting of a porous wall.
A main shaft 19 penetrating through the interior of the milling roll 8 is rotatably installed horizontally, and a milling roll 20 whose surface is made of diamond sand is attached to the main shaft 19. A gap between the polishing cylinder 18 and the polishing chamber 21 is formed.

A supply port 22 is provided on one side of this whitening chamber 21, and a discharge port 23 is provided on the other side.A supply hopper 24 is provided above the supply port 22, and a weight 25 is attached to the discharge port 23. A pressed lid 26 is provided near the supply port 22, and a feed roll 27 having spiral blades formed on its surface is rotatably mounted on the main shaft 19. Furthermore, the peripheral surface of the bran removal polishing cylinder 18 is made into a bran collection chamber 28, and
The lower part of the bran collecting chamber 28 is connected to a bran collecting duct 30 via a bran collecting hopper 29. The rice bran collecting duct 30 is connected to a bag filter and a fan (not shown).

The discharge gutter provided at the discharge port 23 of the grinding type barley mill 16 is
Supply hopper 32 of humidified barley machine 17 via grain lifting machine 31
will be contacted. This humidifying barley milling machine 17 has a bran removing and polishing tube 3 which has a porous wall and is formed into a polygonal shape such as a hexagonal tube.
A hollow main shaft 34 penetrating through the inside of the shaft 34 is rotatably horizontally installed, and the hollow main shaft 34 with one end open has a stirring protrusion 35 formed substantially in the longitudinal direction of the surface and a jet jet perforated along the stirring protrusion 35. A friction milling trochanter 37 provided with a wind groove (slit) 36 is mounted on the shaft. The friction whitening trochanter 37 is hollow, and a ventilation hole 3 is provided on the circumferential surface of the hollow shaft 34 inside the friction whitening trochanter 37.
8 are provided in large numbers. Also, Mo! 1! The gap between the whitening trochanter 37 and the rice bran removal cylinder 33 is defined as a whitening chamber 39.
A supply port 40 is provided on one side, and a discharge port 41 is provided on the other side. A supply hopper 32 is provided above the supply port 40, and a pressurizing force applied with a weight 42 is provided at the discharge port 41. A lid 43 is provided. In the vicinity of the supply port 40, a grain feeding rotor 44 having spiral blades formed on its surface is rotatably mounted on the hollow main shaft 34, and a bran collecting chamber 45 is formed on the peripheral surface of the bran removal and polishing cylinder 33. The lower part of the bran collecting chamber 45 is connected to a bran collecting duct 47 and a bran collecting fan 48 via a bran collecting hopper 46.

Next, the moisture addition device in the humidified barley machine 17 will be explained. The nozzle opening of the two-fluid nozzle 49 faces the open end of the hollow main shaft 34, and the pressure pipe 50, which has one end connected to the two-fluid nozzle 49, is connected to an air compressor 52 via an air filter 51. A water pipe 57 whose one end is connected to the fluid nozzle 49 is connected to a water tank 56 via a solenoid valve 53, a flowmeter 54, and a flow control valve 55.

A discharge gutter provided at the discharge port 41 of the humidifying barley mill 17 is connected to the tempering device 5 via the grain lifting machine 57. The refining device 5 will be described next. In this embodiment, conditioning refers to heat refining in a broad sense, and is a concept that includes cold refining. Cold refining is usually called tempering, and is a process in which the raw material added with water by the water adding device 3 etc. is made to have a high moisture content in an air temperature state in a tempering bin (not shown).
), which improves millability. On the other hand, tempering in a narrow sense includes temperature conditioning, heat conditioning, and stabilizer conditioning, and in the case of high moisture content of raw materials exceeding 20%, drying is also included in conditioning here. It is something that can be done.
Yes, in other words, tempering is the removal of moisture and other physical
A processing process to bring the chemical properties to an optimal state for crushing, especially in the roll machine to which the raw material is first supplied.

Next, the grinding process 2 will be explained. First, it is a crushing roll machine.The crushing roll machine consists of 5 stages, that is, crushing rolls 160A to 160E.This is called a braking process, and the crushing roll machines 60A to 60E are sequentially operated in the 1st brake (1B), the 2nd brake. Brake (2B)... is called the No. 5 brake (5B), and each brake roll 60a of the crushing roll machines 60A to 60E has a serrated tooth pattern on the surface, and the number of teeth and tooth shape are marked. The combination of tooth shapes and the twist angle of the teeth are different at each stage of the braking process, and the teeth are formed to rotate at different speeds. Further, usually, a composite roll type crushing roll machine 60A to 60E formed by roughly combining a pair of brake rolls 60a is used (see FIG. 2), and a supply port 61 is provided above the brake roll 13.
A discharge port 62 is formed below the same, and a feed roll 63 is disposed in the supply port 61 to uniformly supply the raw material between the brake rolls 60a.

Each supply port 61 of the crushing rolls l160A to 160E is supplied with wheat grains or crushed wheat grains (hereinafter referred to as "S1~Tsuku").
Supply troughs 64A to 64E are connected to each other, and each of the supply troughs 64A to 64E is provided with a humidifying device for adding water to the wheat grains or stock. That is, one end is connected to a blower pipe 65 that is connected to an air compressor (not shown), and one end is connected to a water tank (not shown).
Two-fluid spray nozzles 67A to 67E (not shown) are connected to a water pipe 66 (not shown).
The nozzle ports of the water addition device (see the water addition device in No. 7) are arranged to face into the supply troughs 64A to 64E, respectively.

The respective discharge ports 62 of the crushing roll machines 60A to 60E and the inlets of the cyclone collectors 68A to 68E provided above each of the crushing roll machines 60A to 60E are connected by upper feed pipes 69A to 69E as air transport pipes. In addition, a rotary air valve 70 is installed in a part of the lower end hopper of the cyclone collectors 68A to 68E, and
The upper end of each inner cylinder of the cyclone collectors 68A to 68E is connected to the inlet of a dust collecting fan 72AK by a dust collecting duct 71. The discharge port of this dust collecting fan 72A is connected to the bag filter 73A.

Brake shifters 74A to 74E are arranged below each of the cyclone collectors 68A to 68E to screen out the stock crushed by the crushing roll machines 60A to 60E, and the number 1 brake shifter (IBS>...
It is called the No. 5 brake shifter (5BS). Then, the first brake shifter 74A and the second brake shifter 74
8, from the top, a coarse wire mesh 75 with a small mesh, a coarse wire mesh 76 with a large mesh, a medium-fine sand 77, and $1178
Each sieve is mounted on the No. 3 brake shifter 74G, a medium mesh medium wire mesh 79, a large mesh sieve of fine sand 80 and silk 78 are mounted, and a coarse wire mesh is mounted on the No. 4 brake shifter 74D. Silk 78 is placed on the lower stage of 76, and similarly coarse wire mesh 76,
Fine sand 80 and silk 78 are placed one after another.

The above is the so-called grading process consisting of the braking process and the brake shifters 74A to 74E attached to the braking process. A buffing step is provided for sorting (purifying). That is, the buffing process that uses both sieve sorting and wind sorting consists of the burifiers 81A to 81D.
A first opening 82, a second opening 83 and an overflow 84 are provided at the bottom of each of A to 81D from the supply section side. A large fine-mesh sieve 86 and a medium-mesh sieve 87 are installed on the Pyusofers 81B and 81C, respectively, and the sieves 85 to 87 are each divided into four parts, and the sieves 85 to 87 are each divided into four parts. The width of the eyes is gradually increased. In addition, each of the sieves 85 to 87 is
It is inclined by 3 to 4 degrees so that the 4th side is lower.

Next, a reduction process provided below the buffing process will be explained. In the reduction process, crushing roll machines 88A to 88G equipped with a pair of full-faced smooth rolls 88a that rotate at true speed opposite each other are provided (as they are almost the same as crushing roll machines 60A to 60E,
), cyclone collectors 89A to 89G are provided above each of the grinding roll machines 88A to 88G, and the discharge section of each of the grinding roll machines 88A to 88G and the inlet of the cyclone collectors 89A to 89G are connected to an upper feed pipe 90A. ~9
Connected by 0G and further connected to cyclone collector 8
The upper end of each inner cylinder 9A to 89G is connected to the inlet of the dust collecting fan 72B by a dust collecting duct 91.

A discharge port of the dust collecting fan 72B is connected to a bag filter 73B.

By the way, in the reduction process, the main purpose is to extract the finished powder, and the stock (-semolina) as a purified intermediate product sent from the above-mentioned beautification process etc. is passed through crushing roll machines 88A to 88C (
A sizing step is carried out in which the stock is pulverized by sizing rolls 1SR to 3SR (referred to as sizing rolls 1SR to 3SR) into a fine stock (-midringuesu) of approximately 60μ or less, and the midringuesu, which has become easier to crush in the sizing step, is further processed by a grinding roll 1J.
88D~88G (Middle roll 1MR~4M)
(The final step of the sizing process, the crushing roll machine 88C, is particularly referred to as the tailing roll TR.) The shifters attached to each crushing roll machine 88A to 88G are also called sizing shifters. (SS), tailing shifter (TS>) and middleing shifter (MS).In other words, below the cyclone collectors 89A to 89B, a sizing shifter 93A (1S
S) and 93B, (288) are connected to the tailing shifter 94 (TS) through the airlock pulp 92 below the cyclone collector 89C, and the tailing shifter 94 (TS) through the airlock pulp 92 below the cyclone collectors 89D to 89G. Ring shifter 95A~95D (1MS~4M
5) are provided respectively. And sizing shifter 9
3A and 93B are loaded with coarse wire mesh 75, fine sand 76, and silk 78 sieves from the top, and the tailing shifter 9
4 is loaded with coarse sand 96, fine sand 80 and silk 78 sieves, the middle sifter 95A (1MS) is loaded with medium coarse sand 97 and silk 78, and the middle sifter 95B (2MS) is loaded with medium fine sand 7.
7 and silk 78, fine sand 80 and silk 78 are stretched on the same 95G (3MS), and silk 78 is stretched on the same 95D (4MS). Further, the crushing roll machine 88C called the tailing process is provided with a spray nozzle 67F connected to the blower pipe 65 and the blower pipe 66 (see FIG. 2).

At the end of the plaking process and reduction process,
In order to take out the large pressed skin (fu) from the stock, plum dusters 98A and 98B each having a brush rotatably installed in a wire mesh cylinder are provided. and,
A dust shifter 99 is provided above it for further sorting the stock from which wheat has been removed by the plum dusters 98A and 98B, and a sieve for fine sand 80 and silk 78 is mounted on the dust shifter 99. Also, Plunderster 98A,
To connect 98B and dust shifter 99, use air
A cyclone collector 68F with a pick valve 70 and an upper feed pipe 69F are provided.

Next, specific operations in the above embodiment will be explained in order from the grinding pretreatment step 1. When 13 to 14% of the standard moisture content in the mouth (selected material after removing foreign substances, etc.) is put into the supply port 6 of the water adding device 3, and water is added from the fountain nozzle 12, the trough is filled. The wheat grains in 8 receive water from a fountain nozzle 12 while being conveyed while being stirred by a screw 9. When the wheat grains are subjected to hydration while being stirred, water is absorbed into the skin part, softening the skin part. The amount of water added in the water adding section 10 may be varied depending on the flow rate of the wheat grains, for example, by providing a flow meter (not shown). Furthermore, by raising the temperature of the added water using the heater 14, the water absorption effect may be further enhanced.

In this way, the wheat grains whose skins have been softened by the water adding device 3 are conveyed by the grain lifting machine 15 and transferred to the wheat polishing device 4. In the wheat milling device 4, the wheat is first fed into the supply hopper 24 of the grinding type wheat mill 16, sent to the milling chamber 21 by the grain feeder 27, and subjected to the polishing action by the grinding miller 20. That is, relatively high circumferential speed (e.g. eoom
The skin of the wheat grain other than the longitudinal grooves is finely crushed and scraped off by the diamond sand on the circumferential surface of the grinding and whitening trochanter 20, which rotates at a speed of 1n or more. The wheat grains discharged against the water are transported to the mIQ machine 31, put into the supply hopper 32 of the humidified wheat!117, and sent to the milling room 39 by the grain feeder 44.The milling room 3
9 is set at a relatively high pressure (for example, an average pressure of 200Q/3" or higher), and is driven by the stirring projections 35 of the friction polishing trochanter 37 that rotates at a circumferential speed of about half or less of the grinding and polishing trochanter 20 of the grinding type wheat mill 16. , grain-to-grain friction occurs between the wheat grains. At this time, the mist ejected from the nozzle opening of the two-fluid nozzle 49 into the hollow main shaft 34 passes through the ventilation holes 3 provided on the circumferential surface of the hollow main shaft 34.
8, flows into the hollow part in the friction polishing trochanter 37, and enters the blast groove 3.
6 into the whitening chamber 39, and as a result, the surface of the wheat grains is humidified and the frictional force is increased, the bran remaining or attached to the surface is wiped away and a polishing action is produced. The added moisture oozes out from the bran removal polishing cylinder 33 along with the bran by the blast from the blast groove 35.

The barley grains (milled barley) discharged from the discharge port 41 of the humidified milling machine 17 are then conveyed to the IIR machine 57 and transferred to the tempering device 5. In the tempering device 55, the wheat grain is heated through a humidifying device (
(not shown), and put it in a tempering tank or the like to "rest" for 24 to 28 hours to homogenize the moisture down to the inner layer of the wheat grain. As mentioned above, the moisture content here is 15 to 16%, which is the most suitable for braking, including temperature conditioning or thermal conditioning.

The wheat grains tempered in the tempering device 5 are added with water in the form of mist from a spray nozzle 67A in the supply gutter 64A, which is a conveyance path leading to the crushing roll machine 60A (IB) in the breaking process. After a minute to two hours have elapsed, that is, when the moisture has penetrated into the inner layer of the endosperm, the first brake is applied to the brake roll of the crushing machine 60A, and the wheat grains are crushed to a large extent. At this time, 16%
Wheat grains that have been hydrated to a certain degree have toughened longitudinal grooves (skin part) and softer endosperm, so that the longitudinal grooves are fine (they do not break) and the endosperm part can be crushed under relatively low pressure. It will be done.

The thus crushed stock is air conveyed by the upper feed pipe 69A, separated from the air by the cyclone collector 68A, and supplied to the first brake shifter 74A via the airlock pulp 70.

Due to the vibration of the first brake shifter 74A,
Endosperm particles themselves, endosperm particles with attached skins, elementary particles (semolina), intermediate particles (midringes), fine particles (dunst), and finished flour as a product ( The stock (referred to as over stock) remaining on the top coarse wire mesh 75 flows down the supply gutter 64B and is supplied to the crushing roll machine 60B, where the No. 2 brake It will be done. At this time, in the supply 164B, atomized moisture is supplied from the spray nozzle 67B, and the supply gutter 64
The stock flowing down B is slightly humidified and passed through a crushing roll machine 60A, an upper feed pipe 69A1, a cyclone collector 68
Replenish the water lost in A and Brake Fusiturf 4A. .

The stock, which has been refilled with water and has become around 16% again,
No. 2 braking is performed in the crushing roll machine 60B, and the product is supplied to the brake shifter (288) 74B via the upper feed pipe 69B and the cyclone collector 68B. This brake shifter 748 is the brake shifter (18
S) It has the same configuration as 74A, and the stock on the coarse wire mesh 75 at the top stage is sent as overflow to the next crushing roll machine 60C, and the stock on each coarse wire mesh 76 at the lower stage (referred to as coarse semolina) is both purified. The stock (referred to as fine semolina) on each medium-fine sand 77 in the lower stage is similarly sent to the clarifier (2P) 81B, and The stock on each silk 78 (referred to as coarse midringes) is crushed by a crushing roll machine 88A (1
SR), while those passed through a sieve of 8 silk and 78 are extracted as a powder.

The brake shifter 74B (288>The stock remaining on the uppermost coarse wire mesh 75 flows down the supply gutter 64C and is thrown into the crushing roll machine 60C, where No. 3 braking is performed. The flowing stock is also humidified by the spray nozzle 67G, replenishing the moisture lost during No. 2 braking and No. 2 brake shifter.
Similar to No. 1 and No. 2 braking at a moisture content of about 1.5%, the skin can be split open efficiently without unnecessarily dividing it into small pieces.
Manufacture semolina.

The stock generated by No. 3 braking is sent to the cyclone collector 68C1, :I by the upper feed pipe 69C.
and is supplied to the brake shifter 740 via the mechanical lock valve 70. In the brake shifter 740, the stock on the middle wire mesh 79 at the top stage is sent to No. 4 braking, the stock on the fine sand 80 at the middle stage is sent to the crushing roll 1188B (<2SR) in the sizing process, and the stock on the silk wire mesh 79 at the bottom stage is sent to the grinding roll 1188B <2SR). The upper stock is sent to a crushing roll machine 90C which is a tailing process, and what passes through the silk 78 at the bottom becomes powder. 'Third brake shifter 740
(3BS) The stock with a large amount of skin remaining on the uppermost middle wire mesh 79 flows down the supply gutter 64D and is transferred to the spray nozzle 67.
After being humidified by D to replenish moisture and make the skin tough, it is put into a crushing roll machine 60D, which is a No. 4 brake. In the braking after No. 4, the endosperm remaining inside the skin is mainly peeled off, and the stock that has passed through the crushing roll machine 60D (4BR) is sent to the brake shifter via the upper feed pipe 69D and the cyclone collector 68D. 74D (4BS>). The stock on the fine wire mesh 76 on the upper stage of the brake shifter 74D is sent to the next braking, and the stock on the silk 78 is sent to the final crushing roll machine (4MR) 88G in the middleing process. It is extracted as a powder after bathing with Silk 78.

The stock on the fine wire mesh 76 in the upper stage of the fourth brake shifter 74D (488) is humidified by the spray nozzle 74E while flowing down the supply gutter 64E, and the water lost during braking in the previous stage is replenished. After that, the endosperm portion remaining inside the skin portion is peeled off using a crushing roll machine 60E (5BR). The stock that has passed through the crushing roll machine 60E is transferred to an upper feed pipe 69E and a cyclone collector 68E.
It is then supplied to the final brake shifter 74E (5BS). Upper coarse wire mesh 76 of brake shifter 74E
Both the stock on the fine sand 80 in the middle row were sent to the Plunderster 98A, and the particles of the endosperm that were exfoliated from the skin due to friction between the brush and the wire mesh were sent to the dust shifter 99, and the endosperm was removed. The leather part is taken out of the machine as wheat, and the stock on the silk 78 is attached to the brake shifter 74.
The silk 78 is sent to the final milling roll machine 90G (4MR) in the middleing process together with the stock on the silk 78 of 0 (4BS), and the silk 78 that has been bathed is extracted as a powder.

Of the endosperm particles supplied from the Plunderster 53.53B to the dust shifter 99 via the upper feed pipe 69F and the cyclone collector 68F, the particles other than those that pass through the fine sand 80 and silk 78 and are extracted as powder are wheat. removed from the aircraft.

Next, the buffing process and the reduction process will be explained. Brake shifter 74A (188
) and the brake shifter 74B (<2BS), the coarse semolina sent to the beulifier 81A (IP>) is made into a fluidized bed by slight vibrations in the front and rear direction and the transport action of the airflow from below the coarse sieve 85. As semolina particles form, semolina particles with a high specific gravity sink to the lower layer, and small pieces of skin with a low specific gravity move to the upper layer (stratification effect).Furthermore, only the small pieces of skin are lifted up by the airflow from the bottom of the sieve (classification effect). Coarse sieve 8
Semolina particles smaller than the mesh size of No. 5 are the first openings 82 and 2.
The sieve that falls into the port 83 is acted upon, and in this way the stock and brake shifter 74A (1
The stock on each silk 78 of BS) and brake shifter 74B (288) is finely ground by a grinding roll machine 88A (ISR) in the sizing process.

The stock crushed by the crushing roll machine 88A (1SR) is transported to the cyclone collector 89A by the upper feed pipe 90A, and is supplied to the sizing shifter 93A (188) via the air lock valve 92. The stock on the coarse wire mesh 75 on the upper stage of the sizing shifter 93A is sent to the crushing roll machine 88C (TR) in the tailing process, and the stock on the fine sand 76 on the middle stage is sent to the ulifier 8.
1C (3P), and the stock on the silk 78 in the lower row is sent to the burifier τ81D (4P), where the silk 78 bathed is extracted as powder.

On the other hand, the brake shifter 74A (188) and the brake shifter 74B are included in the billifire ear 81B (2P).
The stock (fine semolina) on each medium-fine sand 77 of (2BS) is supplied, and the urifiers 81A to 81D
Stock and fine sand 8 of the brake shifter 600 (388) discharged from each second port 83 and overro 84
The stock above 0 is passed through the crushing roll machine 88 in the sizing process.
Sent to B (2SR). The crushing roll 188B1' is used to crush fine semolina (less than 60μ) in order to make it easier to crush the burified semolina in the next milling process, similar to the crushing o-JLt machine 88A (ISR>).
Midringes) and passes through the upper feed pipe 90B and cyclone collector 89B to the sizing shifter 938 (28
S).

In the sizing shifter 938, the stock on the uppermost coarse wire mesh 75 is the same as the stock on the uppermost coarse wire mesh 75 of the sizing shifter 93A (188) and the brake shifter 7.
40 (3BS) and the stock on the bottom silk 78 is fed into the crushing roll machine 88C (TR) in the tailing process. This crushing roll machine 88C is equipped with a spray nozzle 67F, which humidifies the stock with many rough skin parts sent from the previous sizing process and from above the silk 78 of the No. 3 brake jig lid 740. Perform pulverization. This makes it easier to exfoliate the endosperm and strengthens the skin so that it does not break into small pieces and is extracted as intermediate-sized wheat in the later process. Note that the crushing roll machine 88C may be provided with a suction fan to remove excess moisture. The stock on the fine sand 76 in the middle stage of the sizing shifter 93B is sent to the crushing roll machine 88F (3MR) in the middleing process, and the stock on the silk 78 in the lowest stage is sent to the crushing roll machine 88E (3MR) in the middleing process.
2MR) and bathed in Silk 31, which is extracted as a powder.

The stock crushed by the crushing roll machine 41C (TR) in the tailing process passes through the upper feed pipe 90C and the cyclone collector 89C to the tailing shifter 94.
(TS). The stock on the coarse sand 96 in the upper stage of the tailing shifter 94 and the fine sand 80 in the middle stage are sent to the final crushing roll machine 88G (4MR) in the middleing process, and the stock on the silk 78 in the lower stage is sent to the crushing roll in the middleing process. What is sent to 1188F (3MR) and bathed with Silk 78 becomes powder.

The first grinding roll machine 88D (IMR) in the middleing process
818-81D, each number 82
Stock from is fed and crushed. The crushed stock is transferred to the upper feed pipe 90D and the cyclone collector 8.
It is supplied to the middle shifter 95A (IMS) via 9D. In the middle shifter 95A, the stock on the upper medium-coarse sand 97 is the grinding roll l1 in the tailing process.
88G, the stock on the silk 78 in the lower stage is sent to the milling roll machine 88E (2MR) in the middleing process along with the stock on the silk 78 of the sizing shifter 93B (<2SS).
The powder that is fed to the powder and bathed with silk 78 becomes powder.

The stock crushed by the crushing oil machine 88E is supplied to the middleing shifter 95B (2M'S) via the upper feed pipe 90E and the cyclone collector 89E, and is placed on the middle fine sand 77 in the upper stage of the middleing shifter 958. The stock is sent to the crushing roll machine 88C in the tailing process, and the stock on the lower silk 78 is sent to the sizing shifter 93B (28
8) Together with the stock on the fine sand 76 in the middle stage and the stock on the silk 78 in the lower stage of the tailing shifter 94, the silk 7
The product that has been bathed in 8 becomes the powder.

The stock crushed by the crushing roll machine 88F is supplied to a middleing shifter 950 (3MS) via an upper feed pipe 90F and a cyclone corefter 89F. In the middleing shifter 95G, the stock on the upper fine sand 80 is sent to the crushing roll machine 88C in the tailing process.
The stock on the lower silk 78 is the tailing shifter 94
It is sent to the final crushing roll 188G (4MR) together with each stock on the upper coarse sand 96 and the middle fine sand 80 and the stock on each lower silk 78 of the brake shifter 74D (488) and brake shifter 74E (5BS). .

The stock crushed by the crushing roll machine 88G is sent to the final middleing shifter 950 (4MS) via the upper feed pipe 90G and the cyclone collector 89G, and the stock that has passed through the silk 78 is extracted as upstream powder, and the rest is The stock will be sent to Plunderstar 98B. In the Plunderster 98B, the particles of the endosperm exfoliated from the skin are supplied to the dust shifter 99 via the upper feed pipe 69F and the cyclone collector 68F, and the skin from which the endosperm has been removed is taken out of the machine as wheat gluten. dust shifter 99
The stocks above the fine sand 80 in the upper row and the silk 78 in the lower row are removed together with the wheat, and the silk 78 is extracted as a powder after bathing.

In addition, the crushing roll machines 88D to 8 in the middleing process
Immediately after 8G (1MR to 4MR), an auxiliary crusher may be provided to loosen the stock compacted into flakes by smooth rolls. The humidifying device is not limited to the two-fluid type spray nozzles 67A to 67F. For example, as shown in FIG. The outlet of the fan 104 may be connected to the inlet of the square roll machine or to the roll machine itself, so as to add fine particles of moisture to the ground material.

Next, another embodiment of the barley polishing device 4 will be described based on FIG. In this case, the wheat polishing device 4 is a friction type wheat polishing machine 1.
05 and the aforementioned grinding type barley mill 16 are connected by a grain lifting machine 106, and the friction type barley milling machine 105 is connected to the water adding device 3 of the previous process by the grain lifting machine 15. The friction type wheat polishing machine 105 has a bran removal polishing cylinder 107 made of a porous wall.
A main shaft 108 passing through the inside of the main shaft 10 is installed horizontally so as to be rotatable.
A friction whitening trochanter 110 having a plurality of stirring protrusions 109 is attached to the shaft 8 .

A whitening chamber 111 is formed between the friction whitening trochanter 110 and the bran removal tube 107, and a discharge port 112 faces one end of the whitening chamber 111, and a supply port 113 faces the other end.
A spiral rotor 114 is provided near the main shaft 108, and a supply hopper 115 is provided above the supply port 113.
will be established. Further, a pressure lid 116 that presses toward the discharge port 112 is provided at the discharge port 112 and is urged by a weight 117, and a lower rice bran collection hopper 118 of a rice bran collection chamber 117 formed around the rice bran removal cylinder 107 is provided. At the same time, the bran collecting hopper 118 is connected to the bran collecting fan 119.

One of the grinding type barley mills 16 is the same as that in the previous embodiment, so the same reference numerals are given and the explanation thereof will be omitted, and the unique functions of this example will be described below. The wheat grains that have been added with water by the water adding device 3 are fried grains! 115 to the supply hopper 115 of the friction milling machine 105, and sent into the milling chamber 111 by the spiral rotor 114. Whitening room 11
1 is maintained at a relatively high pressure by a pressure lid 116, and grain-by-grain friction between wheat grains and wheat grains and bran removal polishing tube 107 are maintained.
Due to the frictional action of the grain, hard hair mushrooms and the like on the surface of the wheat grain are removed and a part of the epidermis is peeled off.

Wheat grains are easier to mill by removing hair mushrooms, etc.! The barley is conveyed by the grain machine 106 to the grinding type milling machine 16, where it is subjected to a grinding action by the grinding milling trochanter 20, and the skin other than the vertical grooves is removed. The wheat grains thus refined are transferred to the grinding process 2 after passing through the tempering process using the tempering device 5, as in the previous embodiment.

〔Effect of the invention〕

The advantages of the present invention are as follows. In other words, by humidifying the ground material during the grinding process,
During the grinding process, the water lost during the repeated passes of the milled material through roll machines, conveyors, classifiers, etc. is replenished, and when the wheat grains are crushed or pulverized by each roll machine, the grinding process is continued. It maintains the toughness of the skin (bran) of the wheat grain and softens the endosperm (starch), preventing the skin from fragmenting and contaminating the endosperm, resulting in high purity. It is possible to extract high-quality, soft endosperm efficiently and at a high yield to obtain finished flour with high commercial value, and the heat generation of each roll machine is suppressed, improving efficiency.

By milling and grinding the raw material, grinding can be done with very low load, and classification and purification are easy, resulting in higher quality finished flour.

When the wheat is polished by grinding and by humidification, the skin on the surface of the wheat grain is completely removed by polishing with the humidification.On the other hand, when the wheat is polished by friction and by grinding,
First, the hard upper spine on the surface of the wheat grain is removed by friction milling, making subsequent polishing easier.

Furthermore, when adding water, N-barley, and tempering are performed as a pre-grinding process, the addition of water makes it easier to peel off the skin in the next round of refined barley, and water is added again after milling to increase the moisture content. In addition to replenishing the moisture lost in the milled wheat, the moisture penetrates evenly into the inner layer of the wheat grain, making the endosperm soft and giving toughness to the skin in the longitudinal grooves, preventing the skin from fragmenting. This makes it easy to separate the skin and endosperm parts, and it is possible to obtain a higher quality powder with higher purity.

When a humidifying device equipped with an ultrasonic vibration element is used as a humidifying device for ground material, water can be uniformly added to the entire surface of the ground particles by supplying water of ultrafine particles. Further, when the humidifying device is of a two-fluid nozzle type, the humidifying device can be easily provided on each roll machine or on the conveyance path of the ground material.

[Brief explanation of the drawing]

Fig. 1 is a flow diagram of the embodiment of the present invention, Fig. 2 is an enlarged sectional view of the humidifying device in Fig. 1, Fig. 3 is an enlarged sectional view of the rice polishing device in Fig. 1, and Fig. 4 is an enlarged sectional view of the rice polishing device. FIG. 7 is an enlarged cross-sectional view showing another example. 1... Grinding pretreatment process, 2... Grinding process, 3...
water addition device, 4... barley device, 5... tempering device, 6.
... Supply port, 7... Discharge port, 8... Trough, 9...
・Screw, 10... Moisture addition section, 11... Tank, 12... Fountain nozzle, 13... Solenoid valve, 14...
... Heater, 15... Grain frying machine, 16... Grinding type wheat mill, 17... Humidifying barley milling machine, 18... Bran removal milling cylinder,
19...Main shaft, 20...Grinding white trochanter, 21...
Refining room, 22... Supply port, 23... Discharge port, 24.
... Supply lever, 25 ... Weight, 26 ... Pressing lid, 27 ... Grain feeding trochanter, 28 ... Bran collecting chamber, 29 ...
・Shinuka Hopper, 30…Shinuka Darkt, 31…
Grain lifting machine, 32... Supply hopper, 33... Bran removal polishing tube, 34... Hollow main shaft, 35... Stirring protrusion, 36...
...Fufu-dou, 37-f! ! Scrub white trochanter, 38... Ventilation hole, 39... Seal room, 4o... Supply port, 41...
Discharge port, 42... Weight, 43... Pressing lid, 44...
- Grain feeding trochanter, 45... Bran collecting room, 46... Bran collecting hopper, 47... Bran collecting duct, 48... Bran collecting fan, 4
9...Two-fluid nozzle, 50...Blow pipe, 51...
Air filter, 52... Air compressor, 53...
Solenoid valve, 54... Flow meter, 55... Flow rate control valve, 5
6...Water tank, 57...Water pipe, 60A to 60E
...Crushing roll machine, 60a...Brake roll, 6
DESCRIPTION OF SYMBOLS 1... Supply port, 62... Discharge port, 63... Feed roll, 64A-64E... Supply gutter, 65... Air pipe, 66... Water pipe, 67A-67 F-.・Spray nozzle, 68A to 68F...Cyclone collector,
69A to 69 F-...Upper feed pipe, 70...Air valve, 71...Dust collection duct, 72A, 72B...
Dust collection fan, 73A, 73B... bag filter,
74A～～74 E-... Brake shifter, 75...
・Coarse wire mesh, 76... Coarse wire mesh, 77... Medium fine sand, 78
...silk, 79...middle wire mesh, 80...fine sand, 81A
~81D...Billey Eye, 82...Exit 1,
83...2nd exit, 84...Overro, 85...
Coarse sieve, 86...Fine sieve, 87...Medium sieve, 88a...Smooth roll, 88A-88G...
・Crushing roll machine, 89A-89G...Cyclone collector, 90A-90G...Upper feed pipe, 91...Dust collection duct, 92...Air lock valve, 93A, 9
3B...Sizing shifter, 94...Tailing shifter, 95A-95D...Middle ring shifter,
96... Coarse sand, 97... Medium coarse sand, 98A, 98B.
... Plunder Star, 99 ... Dust Shifter, 10
1... Water tank, 102... Ultrasonic vibration element, 10
3... Fog generator, 104... Fan, 105...
Friction type barley milling machine, 106... Grain lifting machine, 107... Bran removal milling cylinder, 108... Main shaft, 109... Stirring protrusion, 1
10... Frictional whitening trochanter, 111... Whitening room, 112
...Discharge port, 113... Supply port, 114... Spiral trochanter, 115... Supply hopper, 116... Pressing lid, 117... Bran collecting chamber, 118... Bran collecting hopper ,1
19... Shunu fan.

Claims (1)

[Claims] (1) A flour milling method in which wheat grains are ground and sieved in stages, the skin part is removed, and the endosperm part is taken out and coaxed out in powder form, during the grinding process. A wet milling method characterized by applying humidification to the ground material. (2) The wet milling method according to claim (1), wherein the wheat grains are polished wheat grains. (3) The wet milling method according to claim 2, wherein the surface of the refined barley is ground by grinding milled barley and then polished by humidified milled barley. (4) The wet flour milling method according to claim (2), wherein the refined barley is a combination of friction milled barley and grinding milled barley. (5) The wet flour milling method according to claim (1), wherein the refined barley is barley grain that has been subjected to water addition, milling, and tempering. (6) A crushing roll machine for opening the wheat grains and taking out the endosperm part, a sifter for classifying the endosperm particles according to their size, a brewer for selectively purifying only the endosperm particles, and a mill for turning the endosperm particles into powder. A humidifying device for the ground material is provided directly to the crushing roll machine, the crushing roll machine, or the crushing roll machine and the crushing roll machine, or in a flow path leading thereto. A wet flour milling device characterized by: (7) In the pre-process of the roll machine, where wheat grain is first supplied, there is a wheat polishing device in which a polishing trochanter is installed inside a bran removal polishing cylinder with a porous wall, and the gap between the polishing chambers is formed. A wet flour milling apparatus according to claim (6). (f3) The malting equipment consists of a grinding type malting machine equipped with a grinding polishing trochanter made of diamond sand, and a humidifying malting machine equipped with a water addition device for humidifying the rice grains in the milling chamber. A wet flour milling apparatus according to claim (6). (9) The wheat polishing device is a wheat polishing device consisting of a friction type wheat mill equipped with stirring protrusions on the circumferential surface of a polishing trochanter, and a grinding type wheat mill equipped with a grinding polishing trochanter made of diamond sand. The wet flour milling apparatus according to claim (6). (10) The wet flour milling device according to claim (6), wherein a water adding device, a barley polishing device, and a tempering device are successively installed in the preceding process of the crushing roll machine to which the wheat grains are first fed. (11) The wet flour milling apparatus according to any one of claims (6) to (10), wherein the humidifying device for the ground material is a humidifying device equipped with an ultrasonic vibration element. (12) The wet flour milling apparatus according to any one of claims (6) to (10), wherein the humidifying device for the ground material is a humidifying device consisting of a two-fluid nozzle.