JP6892647B2 - Feed production equipment and feed production method - Google Patents

Description

The present invention relates to a feed production apparatus and a feed production method for producing feed by heat-treating a livestock by-product obtained by removing edible meat from livestock.

In the livestock field, inedible parts of livestock such as chickens and pigs are rendered and used as chicken meal and pork meal in aquaculture fertilizers and mixed feeds for livestock. At this time, it is also necessary to treat chicken feathers and pig hair. In particular, Niwatoriwa is allowed to keep the hydrogen sulfide (H 2 _S) is generated, or affect the human body, or to corrode the surrounding metal. In addition, pig hair was hard enough to brush shoes and clothing, and when mixed and fed as livestock feed, it had to be softened in some way to facilitate digestion and absorption.

Conventionally, it is known that the chicken feathers and pig hair can be hydrolyzed to convert inedible proteins into edible ones so that they can be used as fertilizers or feeds. For example, in Patent Document 1, chicken feathers are cut, put into a cooker through an inlet, pressurized and heated in the cooker to hydrolyze, then carried out from an outlet, returned to atmospheric pressure, and dried. , A method of producing feather meal is disclosed. Chicken feathers are a mass of protein and are used as a source of animal protein.

Japanese Unexamined Patent Publication No. 61-40753

As shown in FIG. 3, the conventional feather meal manufacturing apparatus pressurizes and heats the chicken wings, the cutting machine 101 for cutting the chicken wings, the feeder 103 for putting the chicken wings into the cooker (hydrolyzer 104), and the chicken wings. A hydrolyzer 104 that hydrolyzes the hydrolyzed product, a screw press 106 that presses and dehydrates the hydrolyzed processed product, a dryer 107 that dries the processed product, and a screen 108 that sifts the dried processed product through a vibrating sieve to remove large particles. It has a crusher 109 that crushes large particles to produce powdered feed, and a silo 110 that stores the produced feed, and has a large number of processes and is a large-scale facility.

In addition, in the processing of chicken feathers, a large amount of odor (corrosive gas, hydrogen sulfide) is generated from the raw material feathers, so a dedicated factory or a dedicated line has been constructed for some time, and production is carried out using an integrated system from raw materials to products. It was often done, but it has not been improved because it is not cost-effective. Further, in the conventional apparatus, since the hydrolyzed processed product is pressed and dehydrated and then taken out from the production line, there is a risk that odor may leak into the factory.

Therefore, the present invention provides a feed production apparatus and a feed production method capable of hydrolyzing chicken feathers and pig hair to produce feed with a small-scale and safe facility.

The present invention is a feed production apparatus for producing feed by heat-treating a livestock by-product obtained by removing edible meat from livestock in order to solve the above problems, and supplies steam to feed livestock blades, body hair, etc. A hydrolyzer that hydrolyzes feathers to produce feed raw materials, a decompression container that puts the feed raw materials delivered from the hydrolyzer under reduced pressure, and collects steam, and is delivered from the decompression container. A heat dryer that heats and dehydrates the feed raw material together with the livestock by-product from which the feathers have been removed to obtain solid content, a crusher that crushes the solid content to produce powdered feed, a decompression container, and the like. The present invention provides a feed production apparatus including a deodorizing apparatus that recovers steam from the heat dryer and deodorizes it.

Further, the feed production apparatus of the present invention includes a beater for beating the feathers and a supply mechanism for supplying the beaten feathers to the hydrolyzer.

Further, the feed production apparatus of the present invention includes a crusher for crushing the livestock by-product excluding the feathers and a supply mechanism for supplying the crushed livestock by-product to the heating and drying device.

Further, the feed production apparatus of the present invention includes a heat exchanger that recovers the heat of the steam recovered from the heat dryer and sent to the deodorizing device, and the heat exchanger is the steam recovered from the decompression container. It is characterized in that heat is recovered and the steam is sent to the deodorizing device.

Further, the present invention is a method for producing a feed by heat-treating a livestock by-product obtained by removing edible meat from livestock to produce a feed. The feed material is subjected to a hydrolysis step of supplying the feed material to hydrolyze the feather fragments to produce a feed material, a steam recovery step of placing the feed material under reduced pressure and recovering steam, and the feed material. The present invention provides a feed production method comprising a heat-drying step of heating and dehydrating together with the livestock by-product from which feathers have been removed to obtain a solid content, and a crushing step of crushing the solid content to produce a powdered feed. ..

Further, the feed production method of the present invention includes a step of recovering steam in the heat-drying step, and a deodorizing step of deodorizing the steam recovered in the heat-drying step and the steam recovery step.

The feed production apparatus of the present invention is an apparatus for producing feed by heat-treating livestock by-products obtained by removing edible meat from livestock, and supplies steam to hydrolyze feathers such as livestock feathers and body hair to feed. The hydrolyzer for producing the raw material for use, the feed material delivered from the hydrolyzer are placed under reduced pressure, and the decompression container for collecting steam, and the feed material delivered from the decompression container are described. A heat dryer for obtaining solid content by heating and dehydrating together with the livestock by-product from which feathers have been removed, a crusher for crushing the solid content to produce powdered feed, and steam from the decompression container and the heat dryer. By having a deodorizing device that collects and deodorizes, feathers such as chicken feathers and pig hair are softened by pretreatment by hydrolysis, and a conventional cooker dryer (heat dryer) is used together with other livestock by-products. Since the feed can be produced by the rendering system that has been used, it is possible to process the feathers that were difficult to process by adding small-scale equipment, and there is an effect that the feed rich in protein can be produced.

Further, since the feed production apparatus of the present invention recovers steam from the decompression container and the heat dryer and deodorizes it with the deodorizing apparatus, exhaust gas such as hydrogen sulfide generated from chicken wings is recovered together with the steam to ensure deodorization. There is an effect that can be processed.

Further, the feed production apparatus of the present invention is provided with a beater for beating the feathers and a supply mechanism for supplying the beaten feathers to the hydrolyzer, whereby the feather fibers are beaten and hydrated. It has the effect of being softened by decomposition treatment.

Further, the feed production apparatus of the present invention is provided with a crusher for crushing the livestock by-product excluding the feathers and a supply mechanism for supplying the crushed livestock by-product to the heat-dryer. It has the effect of crushing livestock by-products such as meat, internal organs, and bones and drying them in a heat dryer to facilitate the release of proteins and oils.

Further, the feed production apparatus of the present invention includes a heat exchanger that recovers the heat of the steam recovered from the heat dryer and sent to the deodorizing device, and the heat exchanger is the steam recovered from the decompression container. By recovering the heat and sending the steam to the deodorizer, not only the steam recovered from the heat exchanger but also the steam recovered from the decompression container heats the heat exchanger of the rendering system. It has the effect of being able to be collected and deodorized with a deodorizing device.

Further, the feed production method of the present invention is a method for producing feed by heat-treating a livestock by-product obtained by removing edible meat from livestock, and for producing feed by heat-treating the feathers such as livestock feathers and body hair into fine pieces. A hydrolysis step of supplying steam to hydrolyze the feather fragments to produce a feed material, a steam recovery step of placing the feed material under reduced pressure and recovering the steam, and the feed material. By having a heat-drying step of heating and dehydrating together with the livestock by-product from which the feathers have been removed to obtain a solid content, and a crushing step of crushing the solid content to produce a powdered feed, chicken feathers and pig hair It is possible to soften the feathers by pretreatment by hydrolysis and generate feed by a rendering system using a conventional cooker dryer (heat drying process) together with other livestock by-products, so it is possible to add small-scale equipment. It has the effect of being able to treat feathers that were difficult to treat and producing feeds rich in protein.

Further, the feed production method of the present invention includes a step of recovering steam in the heat-drying step, a heat-drying step, and a deodorizing step of deodorizing the steam recovered in the steam recovery step. It has the effect of recovering exhaust gas such as hydrogen sulfide generated from the steam together with steam and reliably deodorizing the process.

The block diagram which shows one Example of the feed production apparatus which concerns on this invention. A block diagram of a conventional rendering system. The block diagram of the conventional feather meal manufacturing apparatus.

Embodiments of the present invention will be described with reference to the illustrated examples.
The feed production apparatus 10 of the present invention is an apparatus for producing feed by heat-treating a livestock by-product obtained by removing edible meat from livestock, and supplies steam to hydrolyze feathers such as feathers and body hair of livestock. A hydrolyzer 14 for producing feed raw materials, a decompression container 15 for collecting steam by placing the feed raw materials delivered from the hydrolyzer 14 under reduced pressure, and the feed delivered from the decompression container 15. A heat dryer 22 for obtaining solid content by heating and dehydrating the raw material together with the livestock by-product excluding the feathers, a crusher 23 for crushing the solid content to produce powdered feed, and the decompression container 15. It also has a deodorizing device 27 that recovers steam from the heating / drying device 22 and deodorizes it.

The inventors of the present application have devised a processing method for softening feathers such as chicken feathers and pig hair by pretreatment by hydrolysis and incorporating them into an existing rendering system together with other animal products. The feed production apparatus 10 of the present invention can significantly reduce the investment cost for processing feathers such as chicken feathers and down feathers, and can also cope with energy-saving environmental measures.

Further, the feed production apparatus 10 of the present invention has high airtightness until the feed raw material produced after hydrolyzing feathers such as chicken feathers and pig hair becomes a final product feed together with other livestock by-products. Since it stays in the production line, which is a closed space, and exhaust gas such as odor is deodorized together with steam, there is no risk of odor leaking into the factory. Since the feed production apparatus 10 of the present invention produces feed from animal products containing feathers such as chicken feathers and pig hair, it is possible to produce feeds rich in protein.

In FIG. 1, 20 is an existing rendering system. As shown in FIG. 2, the rendering system 20 includes a crusher 21 that crushes livestock by-products such as waste meat, internal organs, and bones, a heat dryer 22 that heats and dehydrates the livestock by-products to obtain solid content, and a solid content. It has a crusher 23 for producing powdered feed by crushing the feed, a screen 24 for removing large particles by sieving the feed with a vibrating sieve, and a silo 25 for storing the produced feed.

The crusher 21 finely crushes livestock by-products such as waste meat, internal organs, and bones obtained by removing edible meat from livestock such as chickens and pigs, and may be provided in one or more stages. The raw material crushed by the crusher 21 is put into the heat dryer 22 by a feeder or the like.

The heating / drying device 22 has a horizontally long cylindrical shape, and is provided with a raw material input port at one end and a discharge port at the other end. The heat dryer 22 is configured to heat the raw material charged by steam heating and to convey the raw material toward the discharge port while stirring the raw material, and continuously process the raw material. The heat dryer 22 heats the raw material to evaporate the water content and release the protein and oil components. Further, the heat dryer 22 is provided with a drainer in the subsequent stage to recover the oil content separated by natural gravity from the solid content. The recovered oil is used for feed additives as fats and oils by removing fine impurities by centrifugation or filtration.

Further, the heat dryer 22 is provided with a steam discharge portion at the upper part, and is configured to recover the exhaust gas together with the steam. The rendering system 20 cooled the steam and exhaust gas with a heat exchanger 26 that recovers the heat of the steam and exhaust gas recovered from the heat dryer 22, a deodorizing device 27 that deodorizes the steam and exhaust gas, and a heat exchanger 26. It is provided with a wastewater treatment device 28 for treating condensate water that sometimes occurs. The heat exchanger 26 returns the recovered heat to the heat dryer 22 and the like to improve the thermal efficiency of the rendering system 20, cools the exhaust gas, and condenses and separates the steam.

The deodorizing device 27 includes a boiler that incinerates and deodorizes exhaust gas having a high concentration of odor, and a deodorizing tower that cleans other odors with a chemical solution. The wastewater treatment device 28 separates the condensed water into solid and liquid and returns the solid content to the heat dryer 22 as a raw material, and the wastewater is treated by a known method.

The crusher 23 crushes the solid content discharged from the heat dryer 22 to produce powdered feed. The screen 24 sifts the crushed solids through a vibrating sieve to make the feed uniform in size.

In the embodiment of FIG. 1, the feed production apparatus 10 includes a beater 11 that beats feathers such as livestock feathers and body hair as a mechanism for softening feathers such as chicken feathers and pig hair by pretreatment by hydrolysis. , A metal detector 12 that detects and removes metal from the beaten feathers, a feeder 13 that pushes the feathers into the hydrolyzer 14, and a feeder 13 that supplies steam to hydrolyze the feathers and generate feed raw materials. It has a hydrolyzer 14 and a decompression container 15 for collecting the steam by placing the feed raw material sent from the hydrolyzer 14 under reduced pressure returned to atmospheric pressure.

The beating machine 11 is provided with a hopper that receives feathers such as chicken feathers and pig feathers, and beats the feathers to beat the fibers. The metal detector 12 detects and removes the metal mixed in the feathers in the previous step. The feeder 13 is configured so that feathers can be continuously charged into the pressurized hydrolyzer 14.

The hydrolyzer 14 has a horizontally long cylindrical shape, and is provided with a raw material input port at one end and a discharge port at the other end. The hydrolyzer 14 is configured to heat the raw material with steam under pressure and to convey the raw material toward the discharge port while stirring the raw material, so that the raw material is continuously processed. In this embodiment, the vapor hydrolysis method in which the feathers are exposed to high-temperature water is used for the pretreatment of the feathers as a raw material, but acidic or alkaline decomposition using an enzyme may be used in combination. The hydrolyzer 14 hydrolyzes the feathers and transforms them into digestive proteins.

The decompression container 15 receives the feed raw material sent out using the steam pressurized by the hydrolyzer 14, places it under reduced pressure returned to atmospheric pressure, and exhaust gas such as odor (corrosive gas, hydrogen sulfide) together with the steam. To collect. In this embodiment, the feed production apparatus 10 sends the steam and exhaust gas recovered in the decompression container 15 to the heat exchanger 26, cools them together with the steam and exhaust gas recovered from the heat dryer 22, and deodorizes the deodorizing apparatus 27. doing. The pressure in the decompression vessel 15 may be lower than the pressure in the hydrolyzer 14, and is not limited to atmospheric pressure.

In this embodiment, the feed production apparatus 10 is configured to supply the feed raw material sent from the decompression container 15 together with the livestock by-products excluding feathers to the heat dryer 22 and heat-dehydrate to obtain solid content. ing. The feed production apparatus 10 of this embodiment is significantly reduced in equipment scale as compared with the conventional rendering system 20 shown in FIG. 2 and the conventional method in which the conventional feather meal production apparatus shown in FIG. 3 is individually installed. It has become possible to respond to energy-saving environmental measures.

Further, the feed production apparatus 10 of the present embodiment enhances the airtightness between the hydrolyzer 14 and the heat dryer 22 that generate odor (corrosive gas, hydrogen sulfide), and enhances the airtightness between the pressure reducing container 15 and the heat dryer 22. Since the exhaust gas such as odor is recovered together with the steam and the deodorizing treatment is surely performed by the deodorizing knowledge 27, the safety is also improved.

The feed production apparatus 10 of the present invention provides a hydrolysis step of supplying steam to the feather fragments of livestock such as feathers and body hair to hydrolyze the feather fragments to produce a raw material for feed. , A steam recovery step in which the feed raw material is placed under reduced pressure returned to atmospheric pressure to recover the steam, a heat drying step in which the feed raw material is heated and dehydrated together with livestock by-products excluding feathers to obtain solid content, and solids. The feed is produced by a crushing step of crushing the minutes to produce a powdered feed. Further, the feed production apparatus 10 includes a step of recovering steam in the heat-drying step and a deodorizing step of deodorizing the steam recovered in the heat-drying step and the steam recovery step.

The feed produced by the feed production apparatus 10 not only contains abundant proteins at about 56% by weight, but also has a very high pepsin digestibility of about 89%. The present invention combines an existing rendering system with a pretreatment for hydrolyzing chicken feathers and pig hair to produce feed by processing livestock by-products including chicken feathers and pig hair in a small and safe facility. It is useful in that it can provide a high-protein and highly edible feed.

10 Feed production equipment 11 Beating machine 12 Metal detector 13 Feeder 14 Hydrophilizer 15 Decompression container 21 Crusher 22 Heat dryer 23 Crusher 24 Screen 25 Silo 26 Heat exchanger 27 Deodorizer 28 Wastewater treatment equipment

Claims (4)

It is a feed production device that produces feed by heat-treating livestock by-products obtained by removing meat from livestock.
Feathers such as livestock feathers and body hair are pushed in through a feeder, and a hydrolyzer that supplies steam to hydrolyze the feathers to produce feed raw materials, and a hydrolyzer.
A decompression container for collecting steam by placing the feed raw material delivered from the hydrolyzer under reduced pressure, and
A heat dryer for obtaining solid content by heating and dehydrating the feed raw material delivered from the decompression container together with the livestock by-product excluding the feathers.
A crusher that crushes the solid content to produce powdered feed, and
It has a deodorizing device that recovers steam from the decompression container and the heating / drying device and deodorizes the steam.
It is provided with a supply path for supplying the feed raw material delivered from the decompression container to the heating / drying device via a supply path in a closed space, and a feeder for feeding the livestock by-product excluding the feathers into the heating / drying device. Feed production equipment. The feed manufacturing apparatus according to claim 1, further comprising a beating machine for beating the feathers and a supply mechanism for supplying the beating feathers to the hydrolyzer. The feed production apparatus according to claim 2, further comprising a crusher for crushing the livestock by-product excluding the feathers and a feeder for supplying the crushed livestock by-product to the heat-dryer. A heat exchanger for recovering the heat of the steam recovered from the heat dryer and sent to the deodorizing device is provided, and the heat exchanger recovers the heat of the steam recovered from the decompression container to deodorize the steam. The feed manufacturing apparatus according to any one of claims 1 to 3, wherein the feed is sent to the apparatus.

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