JP2739064B2 - Manufacturing method and apparatus for processing raw material for compound feed - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of producing processed raw materials for compound feed of livestock such as cattle and pigs and an apparatus for producing the same.

[0002]

2. Description of the Related Art Conventionally, in feed mills, raw corn and granulated corn are imported from a foreign country by a large cargo ship, temporarily stored in a grain silo at a port facility, and then transported to tanks in each factory. Then, if necessary, the raw material is pulverized with a pulverizer and sieved, sieved into powder and granules with a shifter, and compounded according to the use as a feed,
In addition, the raw granules are heated and humidified and pressed into flakes using a roll machine, and then the blended product is processed into pellets. Used as a product.

[0003]

Problems to be Solved by the Invention By the way, when a powdery substance generated by crushing raw material with a crusher is used as feed, not only is the palatability of the livestock poor, but also if it enters the body of the livestock. In addition, there is a problem in that the digestive power of the foodstuff is inferior to that of the heated food, and the feed containing a large amount of powdery material is easily separated in the feed trough in the livestock barn, and when separated, the nutrients are biased.

[0004] In a method of processing into flakes by a roll machine, pressed flakes are suitable for cattle, but are difficult to use for small animals such as chickens. On the equipment, there are problems that the equipment cost is higher than the production capacity, the operation of the machine is troublesome, the noise is high, and the machine maintenance cost is high. Further, in the processing method for forming pellets, since the press machine is directly connected to the pellet machine, continuous operation adjustment is difficult, failures are likely to occur, and equipment costs are enormous because the pellet machine is expensive. In addition, there is a problem that the installation space becomes large.

[0005] The present invention has the above problems of the prior art and the use of a small amount of powdery substances generated when pulverized raw materials such as corn and raw material corn are used.
In view of the current situation where it is difficult to dispose of this powdery material, its purpose is to be rich in palatability, and it is well pregelatinized and has a good digestibility, for cattle, for pigs,
It is an object of the present invention to provide a method and an apparatus capable of obtaining a high-quality processed feed for a compound feed that can be widely used for chickens and the like.

[0006]

For this purpose, the present invention relates to a method for producing a powdered raw material such as corn flour or starch which is introduced into a homogenizer by heating the raw material with saturated steam in the homogenizer. , A step of uniformly mixing with the added mixed oil, and introducing the mixture obtained in the mixing step into an expander, and at a high temperature by saturated steam in the expander, tempering by kneading and compression shearing. And a step of drying the amorphous solid obtained by the tempering step, and introducing the dried amorphous solid into a rotary dresser to separate fine and coarse particles, and The step of introducing fine particles into a rotary shifter and the step of introducing coarse particles into a crusher, the step of introducing fine particles introduced from the rotary dresser and powder returned from the crusher. And a step of sieving the material into a powdery material and a granular material by the rotary shifter.The present invention also provides a hopper for charging a powdery raw material such as corn flour or starch. A homogenizer that is connected to the outlet via a fixed-quantity feeder and that uniformly mixes the powdered raw material and the mixed oil under heating by saturated steam by a rotating paddle of the interior, and is connected to an outlet of the homogenizer, and internally, Under a high temperature due to the saturated steam, an expander equipped with a screw having a flight that compresses and shears while kneading and transferring the mixture from the homogenizer is connected to the outlet of the expander via a degassing cylinder, and from the expander. A dryer for air-drying the amorphous solid of the above, and connected to the outlet of the dryer and Is a rotary dresser that rotatably supports a cylindrical sheave on which a mesh screen is stretched, and that divides the amorphous solid from the inlet into fine particles and coarse particles, and a coarse particle outlet of the rotary dresser. And a pulverizer for pulverizing coarse particles from the outlet, and a sieve connected to the fine particle outlet of the rotary dresser and stacked and mounted on the multi-stage, thereby squeezing the fine particles from the outlet. And a rotary shifter for sieving the pulverized material pulverized and returned by the pulverizer into powder, small particles, medium particles, and the like.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a system diagram of an example of the manufacturing apparatus according to the present invention, in which corn flour or starch, which are processing raw materials, are conveyed by conveying means (not shown) such as a conveyor and put into a hopper 1, From the outlet, it is quantitatively introduced into the homogenizer 3 via the quantitative feeder 2. The homogenizer 3 is a mixer for pretreatment of an expander described below, and as shown diagrammatically in FIG.
A casing 4 having an inlet 5 and an outlet 6 having an opening at a lower portion on the opposite side of the inlet 5, and alternately mounted above and below a horizontal shaft 7 in the casing 4, and integrally rotated with the shaft 7 by a driving source 8. And the inside of the homogenizer 3 holds saturated steam introduced from a boiler (not shown) via a steam pipe 10, a steam header 11, and a steam introduction pipe 12. I have.

The powdered raw material introduced into the homogenizer 3 is simultaneously steamed under the saturated steam thereof together with the mixed oil added from the mixed oil tank 13 through the pipe 14 through the inlet 5, and is rotated by the rotation of the paddle 9. The mixture, which has been agitated and uniformly mixed and has a higher calorie, is sent from the outlet 6 into the expander 15. As shown diagrammatically in FIG. 3, the expander 15 includes a cylinder 16 having an inlet 17 and an outlet 18, and a spiral flight 21 around a screw shaft 20 provided in the cylinder 16. A screw 19 is attached and rotated by a drive source 22. The screw 19 is divided into an area of a kneading unit 23 and a compressing unit 24 from an inlet side to an extruding side, and a pitch H between the flights 21 in the kneading unit 23 is wide. The pitch h between the flights 21 in the compression section 24 is narrow. The interior of the expander 15 is heated to a high temperature by the saturated steam introduced through the branch pipe 25 from the steam introduction pipe 12, and the mixture from the homogenizer 3 introduced into the expander 15 is kneaded at a high temperature. Cylinder 1 in section 23
6 is sufficiently kneaded by the inner peripheral wall and the rotating screw 19 and sent to the compression unit 24 while being pushed forward, and the outlet 1
The die (not shown) mounted on the header portion of No. 8 is counter-pressured by a hydraulic cylinder (not shown), and the mixture is raised to 120 to 130 ° C. As the mixture passes through the die, it is sheared and introduced into the degassing cylinder 26 through its outlet 18 as an amorphous solid. In the degassing cylinder 26, the vapor accompanying the amorphous solid is separated by suction through a fan (not shown), and the vapor separated solid is introduced into a dryer 27. Dryer 2
In the drying chamber 28, transfer means 29 such as a two-stage slat chain conveyor is provided in the drying chamber 28, and the introduced irregular solids are horizontally moved and inverted by the transfer means 29, so-called switching is performed. The air moves through the drying chamber 28 while being blown, and is forced into the air outlet 31 in the upper part of the drying chamber by the forced suction of the blower 32 from the air suction port 30 to approximate the moisture content of the powdery raw material before being charged into the hopper 1. It is dried to the specified value and introduced into the rotary dresser 33 from its outlet.

As shown diagrammatically in FIG. 4, the rotary dresser 33 is provided on a casing 34 having an inlet 35 and outlets 36 and 37, and on a rotating shaft 38 laterally provided in the casing 34. And a cylindrical sheave 40 on which a mesh screen 41 which rotates integrally with the shaft 38 by the driving source 39 is stretched. The introduced irregular solid matter is sieved by the rotating sheave 40, and the fine granules are solid lines. As shown by the arrow, it passes through the mesh screen 41 and is introduced into the rotary shifter 42 from the outlet 36,
On the other hand, as indicated by the dotted arrow, the coarse particles are transported to the end through the rotary sheave 40 while flowing, and sent to the crusher 43 from the outlet 37.

The rotary shifter 42 has an inlet 45 and respective outlets 46, 47, as shown diagrammatically in FIG.
And a casing 44 having
And a sieve 51 which is arranged in a multi-stage manner and is oscillated through its eccentric shaft by the driving of a driving source 50. The sieve 51 is constituted by a plurality of sieve bodies 52, and each sieve body 52 Has a sieve mesh 53 stretched over the sieve frame, and the mesh is a different mesh so that high-precision sieving from coarse to fine powder can be performed. And the exit 3 of the rotary dresser 33
The fine particles introduced into the rotary shifter 42 through the inlet 45 through the inlet 6 are sieved into large particles, medium particles, and powder by the centrifugal effect of the oscillating screen 51. To explain further, the mesh of the sieve net 53 in each sieve body 52 is:
Since it is gradually denser from the upper stage, large grains remain on the uppermost sieve body 52 and pass through the outlet 46 as it is.
The large particles that have passed through the lower sieve 52 are sent to the crumbler 56 via the conveyors 54 and 55 together through the outlet 47, and a part is stored as a raw material product in a raw material tank (not shown) in the tank group. You. The small particles remaining on the lowermost sieve body 52 are stored as raw material in a raw material tank (not shown) in the tank group through the outlet 48 via the conveyor 57, and the sieve net 53 of the lowermost sieve body 52 is provided. Is passed through the outlet 49 via the conveyor 58 and stored as a raw material product in a raw material tank (not shown) in the tank group. On the other hand, some large grains sent to the crumbler 56 are refined by the rotating roll 59,
It is returned to the rotary shifter 42 via the conveyor 60 and sieved again. The coarse particles from the rotary dresser 33 are also pulverized by the pulverizer 43,
0 and is fed into the rotary shifter 42 and sieved.

Another embodiment of the present invention is shown in FIG. FIG. 6 shows a main part, and other parts are the same as those shown in FIG. 1. Therefore, corresponding parts to FIG. 1 are denoted by the same reference numerals and description thereof is omitted. In this embodiment,
In the case where two rotary shifters 42 are provided corresponding to the production capacity, in this case, a sorting machine 61 is arranged, and the fine material from the rotary dresser 33 and the pulverized material from the grinding machine 43 are sorted. And is distributed to the two rotary shifters 42 by the sorting machine 61 so that it can respond to the production capacity.

[0012]

According to the present invention, since the powdery material generated after pulverizing the raw material corn, raw material corn and the like is pressurized and heated to obtain a fine particle, the taste of livestock is rich. In addition, it is possible to obtain a high-quality processing raw material having improved sterilization properties. Further, in the past, the use of powdery substances generated after pulverizing the raw material corn, raw material corn and the like was small and it was difficult to dispose of the powdery substances. Since it is used as a raw material for compound feed, the amount of use (mixing ratio) is free. Further, since the size of the granules can be made large, medium and small, it can be widely used for uses such as cattle, pigs and chickens.

According to the present invention, since air drying is performed by a dryer immediately after pressurization and heating by an expander,
The water content of the amorphous solid material is fast and hard to break down, and it is easy to make the particle size. The powdery raw material is sufficiently heated and humidified in a homogenizer and an expander under the heating by the saturated steam, and sufficiently mixed. Therefore, the pregelatinization of starch is maintained at 70% or more, the digestibility of starch is excellent, and it has a favorable effect on the gaining energy of livestock.

Further, since the powdery raw material is made into an indefinite solid by kneading and shearing with an expander, and a large and expensive pellet machine is not required, the installation area of the entire apparatus can be reduced. Equipment costs are low and economical.

[Brief description of the drawings]

FIG. 1 is a system diagram of an example of a manufacturing apparatus according to the present invention.

FIG. 2 is a schematic diagram of a homogenizer.

FIG. 3 is a schematic diagram of an expander.

FIG. 4 is a schematic diagram of a rotary dresser.

FIG. 5 is a schematic diagram of a rotary shifter.

FIG. 6 is a system diagram showing a main part of another example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hopper 2 Quantitative feeder 3 Homogenizer 4 Casing 7 Rotating shaft 9 Rotating paddle 11 Steam header 12 Steam introduction pipe 13 Mixing oil tank 14 Pipe 15 Expander 16 Cylinder 19 Screw 21 Flight 25 Branch pipe 26 Degassing cylinder 27 Dryer 33 Rotary dresser 40 Cylindrical Shape sieve 41 Mesh screen 42 Rotary shifter 43 Crusher 51 Sieve 52 Sieve body 53 Sieve mesh

Claims (2)

(57) [Claims] A step of uniformly mixing a powdery raw material such as corn flour or starch into a homogenizer with the mixed oil added under heating by saturated steam in the homogenizer; The mixture obtained by the mixing step is introduced into an expander, and at a high temperature due to saturated steam in the expander,
A step of tempering by kneading and compression shearing, a step of drying the amorphous solid obtained by the tempering step, and introducing the dried amorphous solid to a rotary dresser to obtain fine granules. Divided into coarse particles, and fine particles are introduced into a rotary shifter, coarse particles are introduced into a pulverizer;
A step of sieving the fines introduced from the rotary dresser and the pulverized material returned from the pulverizer into a powdery material and a granular material by the rotary shifter. Law. 2. A powdery raw material such as corn flour or corn starch and a hopper which is connected to an outlet of the hopper via a fixed-quantity feeder, and uses a rotary paddle of the interior to convert the powdery raw material and the mixed oil with saturated steam. A homogenizer for uniformly mixing under heating and a screw connected to the outlet of the homogenizer and having a flight for compressively shearing while kneading and transferring the mixture from the homogenizer under a high temperature of saturated steam are installed. And a dryer connected to the outlet of the expander via a degassing cylinder, and a dryer for air-drying amorphous solid matter from the expander, connected to the outlet of the dryer, and , A cylindrical sieve with a mesh screen stretched around it is rotatably supported, and the irregular solids from the inlet are fine and coarse. Rotary dresser to be divided into the material, and connected to the coarse material outlet of the rotary dresser,
A crusher for crushing the coarse-grained material from the outlet, and a sieve connected to the fine-grained material outlet of the rotary dresser, and sifting the multi-layered sieve, so that the fine-grained material from the outlet and the crushing are performed. And a rotary shifter for sifting the pulverized material returned by the pulverizer into powders, small particles, medium particles, and the like.