JP3054409B1 - Heat treatment equipment for chicken mash feed - Google Patents

Abstract

An object of the present invention is to devise a heat treatment facility for effectively heat-treating and sterilizing chicken mash feed, and producing a feed that is inexpensive and maintains a mash-like form desired by poultry farmers. It is to be. SOLUTION: A heat treatment device 4 is arranged following a hopper 1 into which mash feed before heat treatment is charged, and a supply duct 5 is connected from the heat treatment device to a drying / cooling device 6 integrated with a filter 11. The cooling device is provided with an outlet 9 for mash feed, and an exhaust duct 1 is provided above the filter.
3 is connected, a fan 14 is connected to the exhaust duct, while a clean air duct 16 connected to the air purifying device 15 is divided into two conduits, one of which is connected to the drying and cooling device 6 as it is. The other end is connected to a hot air duct 18 '' through a hot air generating device 11 and connected to a drying and cooling device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a heat treatment facility for chicken mash feed. In this case, the mash feed is obtained by crushing grains such as corn and milo, blending and mixing with other powdery raw materials (in some cases, adding and mixing liquids such as oils and fats as necessary), and then performing any processing ( Pelletizing,
(Solidification) means a feed that is made into a product as it is in a powder form without being solidified.

[0002]

2. Description of the Related Art In recent years, salmonella food poisoning of eggs has become a social problem. However, this salmonella food poisoning may be caused by salmonella contamination of poultry feed, so that chicken farmers and feed manufacturers are not contaminated with salmonella. The production of safe feed has become an important issue. Conventionally, most of the livestock compounded feed is roughly divided into a mash feed, a solid pellet feed, and a crumble feed obtained by crushing the feed with a roll. However, most poultry feeds are currently mash feeds due to production costs and the needs of poultry farmers. Since this mash feed is not heated at all in the manufacturing process at the feed factory, if some of the raw materials have already been contaminated with Salmonella or Escherichia coli, or if the contamination has been performed in the mash feed manufacturing factory In this method, there is a risk that the contaminated feed is shipped as it is from a feed factory, supplied to a poultry farm, and fed to chickens.

[0003] As a countermeasure, it is most effective to sterilize the produced feed by heat treatment. Many feeds for other livestock (cows and pigs) are already processed into solid feeds by feed production machines such as pellet mills and expanders. In these machines, heat treatment by steam is required, and the temperature of the feed is further increased during processing in the machine, so that a sterilizing effect can be expected in many cases.

Although it is possible to process chicken feed with these machines, the production cost is high for chickens, it is often unprofitable for feed manufacturers, and the form of feed is not solid but mash. There are many poultry farmers who require the chickens, so they are often unsuitable for chickens.

[0005] In a conventional pellet manufacturing facility, after pellet processing, the pellet feed is cooled by a cooler in order to make the water and temperature appropriate for storage. When the moisture value is high, a cooler alone is not sufficient, and a dry cooling device may be used.

Conventionally known heat treatment equipment as shown in FIG. 7 is used without problem for processing livestock pellet feed at present, but a similar method (without using a pellet mill) for heat treatment of mash feed. ), The following several important problems occur particularly in cooling (dry cooling). 1) Since the product in the cooler is not a pellet (solid) but a mash (powder and granule), the amount of powder discharged together with the exhaust gas is large and the cyclone cannot separate and collect sufficiently, and a large amount of dust is released outside And cause environmental pollution problems. 2) Depending on the amount of powder discharged from the cooler, the composition of the feed changes, which may affect the health and growth of the chicken (in the case of pellets, the generated powder is unnecessary, In the case of mash, all flour is a product). 3) The air for cooling the feed uses the air in the factory around the cooler. However, this air contains a lot of dust in the factory, so that it is highly likely that the feed to be heat-treated will be re-contaminated.

For the above reasons, it has not been possible with the prior art to successfully heat treat chicken mash feed on an industrial scale in a feed mill.

[0008] Unlike solids, heat treatment and drying and cooling of powdered feed have not hitherto been carried out in feed mills where high production capacity is required, because it is technically difficult.

An example of a conventionally known facility for producing pellet feed for livestock including chickens will now be outlined.

As shown in FIG. 7, a shutter 42 which can be opened and closed for passing or blocking the mash feed is provided below the hopper 41 for continuously feeding the mash feed as a raw material. A feeder 43 is connected to the hopper 41 below the shutter 42. The feeder 43 is provided with a conditioner. In the conditioner, steam is added to the mash feed as pretreatment. A pellet mill 44 is connected to the conditioner, and an outlet duct 45 is located at an outlet thereof so as to receive pellet feed falling from the outlet. A pellet cooler 46 is connected to the supply duct 45,
The pellet cooler 46 is formed so as to be suitable for cooling the pellet feed and separating the fines by sucking cooling air through a gate having an opening in the central region or formed as a perforated plate. , This pellet cooler 4
6 is to control the flow rate of the pellet feed in order to temporarily collect and cool the pellets that have fallen into the pellet cooler 46 from the supply duct 45 and drop them downward toward the pellet feed outlet 49 after cooling. A gate 47 is provided which is opened and closed at predetermined time intervals accordingly. When the gate 47 is opened, the pellet feed P can freely fall from the pellet feed outlet 49. On the other hand, when the gate 47 is closed, the pellet feed P does not fall, but the gate 47 is cooled by the cooling air blown from below. The center opening or a plurality of porous openings are provided to allow blow-through upward. The air around the cooler is drawn into the cooler by the suction force of the fan 54 and becomes air for cooling the pellets.

An exhaust duct 53 is connected to an upper portion of the pellet cooler 46. The exhaust duct 53 is connected to a fan 54 via a conduit, while a cyclone 55 for removing fine powder is provided before the fan 54. It is attached. As a result, the mash feed fed into the hopper 41 is sent to a pellet mill 44 via a feeder 43 provided with a conditioner to which steam is added, and is processed into pellets by a pellet mill 44.
6, and is discharged as pellet feed P from the pellet feed outlet 49. At that time, the exhaust air from the pellet cooler 46 is exhausted from the exhaust duct 53,
Dust is collected by the cyclone 55. The pellet feed thus produced is usually 2 to 6 mm in diameter and 3 to 15 in length.
mm. Fine powder (dust) contained in exhaust gas
Cyclone can function satisfactorily as a dust collector because the ratio is not large, and the fine powder collected by the cyclone is not a product, so throw it away or return it to the raw material mash before pellet processing and reuse it be able to.

[0012]

SUMMARY OF THE INVENTION Starting from the above state of the art, an object of the present invention is to effectively heat-treat and sterilize chicken mash feed, and to reduce the cost of granulation for conventional pellets and the like. The purpose of the present invention is to devise a heat treatment facility for mash feed for chickens, which is cheaper than a method using a machine or a molding machine and that produces a feed in which the mash-like form desired by a poultry farmer is maintained.

[0013]

The problems of the prior art are as follows: 1) the mash feed cannot be separated and collected sufficiently depending on the cyclone; 2) the components of the feed change; and 3) the dust in the factory. The technical measures specified in claims 1 to 6 are provided to solve the problem that the air containing causes re-contamination of the feed, whereby: 1) use of filters instead of cyclones to increase the dust collection efficiency; 2) The drying and cooling device and the filter are integrated, and the fine powder collected by the filter is immediately incorporated into the feed in the device. 3) As described in claim 1 or 2, the heat treatment, drying and cooling of the mash feed are performed by sending clean air and hot air to the entire heat treatment facility of the chicken mash feed. , Or clean air to the entire heat treatment equipment of mash feed chickens, heat treatment and drying cooling the mash feed by the formation of the conduit for circulating the hot air,
Switching of the operation mode to a cleaning or sterilization operation can optionally take place. Thereby, prevention of recontamination and improvement of the quality of the mash feed are achieved.

As the heat treatment apparatus according to the present invention, the one described in claim 3 is the most appropriate. However, as described in claim 4, the entire mash feed is uniformly and uniformly heated by steam. Temperature and time for sterilization (70
° C or more, 1 minute or more) as long as it is a device that can maintain the shape of the mash even after the heat treatment, even if it is a device known per se, heat treatment of the heat treatment equipment for chicken mash feed according to the present invention. Appropriately usable as a device. As a heat treatment device, a screw conveyor in which two screws are arranged in parallel as a device having the same function as that in which the two rotating blades according to claim 3 are arranged in parallel and horizontally, a container. Various arrangements, such as an arrangement in which a stirring means is disposed in the inside or an arrangement using a vibrating conveyor, can be used.

[0015]

According to the present invention, the heat treatment equipment for chicken mash feed comprises a heat treatment device for the mash feed before heat treatment, a drying / cooling device connected to the heat treatment device, and a supply / exhaust duct as a circulation pipeline system. As the heat treatment apparatus, a heat treatment apparatus known per se (Claim 4) can be used in addition to the apparatus most suitable for the heat treatment equipment for chicken mash feed according to the present invention described in claim 3, and the chicken mash feed can be used. Is also connected to an air purifier and a hot air generator, whereby the heat treatment equipment for chicken mash feed is in a heat treatment / drying / cooling mode in its first embodiment as described in claim 1. Only in the second embodiment, the operation can be switched to a heat treatment / drying / cooling mode, a cleaning mode or a sterilization mode at any time as described in claim 2. It is configured to be. The operation mode will be described later.

Thus, first, a drying and cooling step of the heat-treated mash feed M with clean air is performed.

Secondly, a heat treatment apparatus with clean air, a drying and cooling apparatus, a mixer which can be connected before and after the product storage silo if necessary, and a whole path for connecting these apparatuses and passing feed through the heat treatment equipment. Immediately after the end of the drying and cooling step, a cleaning step that can be performed automatically or manually is performed.

Third, heat treatment equipment, drying and cooling equipment, a mixer which can be connected before and after the product storage silo as required, and sterilization by hot air of all the paths connecting these equipment and passing feed through are performed for chickens. After the operation of the heat treatment facility for mash feed and the end of the cleaning mode operation, it can be performed more regularly or as needed.
In order to prevent bacteria from growing during the holiday period when the operation of the heat treatment equipment for chicken mash feed is suspended, a sterilization process is performed by circulating hot air at 80 ° C. for 30 minutes after the operation is completed on the day before the holiday. Is preferred.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

The heat treatment equipment for chicken mash feed according to the present invention shown in FIGS. 1 to 6 is configured as follows.

The configuration common to the first and second embodiments of the heat treatment equipment for chicken mash feed according to the present invention is as follows.

As shown in FIGS. 1 and 2, a hopper 1 into which a mash feed M before heat treatment is introduced in a heat treatment facility for chicken mash feed is provided with a shutter 2 for supplying and shutting off the mash feed M. A connection pipe 3 is connected below the shutter 2. Instead of the shutter 2 and the connecting pipe 3, a horizontal or slightly inclined screw feeder can be used to transfer the mash feed from the hopper 1 to the heat treatment device 4. A heat treatment device 4 is connected to the connection pipe 3, and a supply duct 5 is connected to an outlet of the heat treatment device 4. The heat treatment apparatus 4 can be used by being arranged horizontally as well as being inclined as shown in the figure. The supply duct 5 is connected to a drying and cooling device 6.
The drying and cooling device 6 consists of at least two chambers which communicate with each other by an intermediate gate 8. As the drying / cooling device 6, a fan-type fan which sucks with a fan is most preferable. In this embodiment, the illustrated vertical drying / cooling device is used.
It is also possible to use a horizontal belt-type cooler other than the vertical type shown. The drying and cooling device 6 has an upper gate 7 for the section of the upper chamber of the container interior in which the hot mash feed M is stored, and the lower gate 7 below the upper chamber of the container interior in which the mash feed M to be cooled is stored. Room (hereinafter “intermediate room”)
The intermediate gate 8 is provided in an openable and closable grid-like intermediate shelf for the section of the container, and the chamber below the intermediate gate 8 in the container inner chamber is partitioned as a lower chamber. A feed outlet 9 is provided, and a conveyor 10 for carrying out the heat-treated, dried and cooled product mash feed is provided below the feed outlet 9. The illustrated drying and cooling device 6
Is a two-layer (two-chamber) type having an upper gate 7 and an intermediate gate 8, but the number of the intermediate gates 8 is increased according to the processing capacity for the required quality of the mash feed, and the three-layer type or A four-layer drying and cooling device 6 can also be used.

Further, in the heat treatment equipment for chicken mash feed, an air purifier 15 is provided at a take-in port for taking in outside air for heat treatment, drying and cooling of the mash feed and cleaning and sterilization of the heat treatment equipment itself for chicken mash feed. ing.

The configuration specific to the first embodiment of the heat treatment equipment for chicken mash feed according to the present invention as shown in FIG. 1 is as follows.

The clean air duct 16 coming from the air purifier 15 is branched and one of the branches is directly connected to the lower chamber of the inner chamber of the drying and cooling apparatus 6. The other one is air supply duct 1
8, the air supply duct 18 is connected to a hot air generator 19, and the outlet of the hot air generator 19 is connected via a hot air duct 18 ″ to the intermediate space located above the lower chamber of the inner chamber of the drying and cooling device 6. Connected to the room.

The exhaust duct 13 and the clean air duct 1
6. The air supply duct 18 and the hot air duct 18 '' can be provided with an on-off valve for opening and closing the ducts.

The specific structure of the heat treatment equipment for chicken mash feed according to the second embodiment of the present invention as shown in FIG. 2 is as follows.

The clean air duct 16 coming from the air purifier 15 is divided into two conduits, one of which is directly connected to the lower chamber of the inner chamber of the drying and cooling device 6 and the other conduit. Is connected to an air supply duct 18 via a bypass pipe 17, the air supply duct 18 is connected to a hot air generator 19, and the outlet of the hot air generator 19 is connected to the drying and cooling device 6 through a hot air duct 18 ''. It is connected to the intermediate chamber. Further, the air supply duct 18 is raised upward, opposite to the hot air generator 19, and is connected to the fan 20, and the discharge side of the fan 20 is connected to the connection pipe 3 via the exhaust duct 20 '. Is connected to the heat treatment apparatus 4.

A filter 11 is provided above the drying / cooling device 6, and the air in the drying / cooling device 6
An exhaust duct 13 is connected to the filter 11 to be discharged through the filter 1, and the exhaust duct 13 is connected to a fan 14. As the filter 11, a bag filter (filter cloth bag type dust collecting mechanism) is preferable. Two circulation ducts 12 and a filter 11 are provided between the intermediate chamber between the upper gate 7 and the intermediate gate 8 in the container inner chamber of the drying and cooling device 6 and the upper chamber above the upper gate 7 of the drying and cooling device 6 via the filter 11. 12 'is connected to allow the two chambers to communicate with each other.

The exhaust duct 13 and the clean air duct 1
6. The air supply duct 18 and the hot air duct 18 '' can be provided with an on-off valve for opening and closing the ducts.

The preferred structure of the heat treatment apparatus 4 applicable to the first and second embodiments of the heat treatment equipment for chicken mash feed according to the present invention is as follows, as shown in FIGS. It is.

A tubular casing 21 having an upstream inlet 3 for mash feed and a downstream outlet and disposed horizontally (not shown) or inclined as shown in the figure is provided. An upstream end and a downstream end of 21 are sealed by side plates 23 and 24, and a plurality of openings 25 are provided on the upper surface of the tubular casing. Each of the openings 25 is used to inject steam supplied from a steam source. A nozzle and a nozzle that can eject liquid as necessary are connected,
A plurality of blades 3 for stirring the steam injected into the tubular casing are provided inside the tubular casing 21.
2 are provided with rotating shafts 31 and 31 ′ arranged at intervals, and both ends of the rotating shafts 31 and 31 ′
A discharge amount adjusting device 22 for adjusting the residence time of the feed guided to the inside of the tubular casing 21 is provided at the discharge port, supported by a driving means provided on the outside of the casing. ing. 5 and 6
Reference numeral 26 denotes a temperature sensor, 27 denotes a drive motor, 33 denotes a heater for heating, and 34 denotes a heat insulating material.

The heat treatment equipment for chicken mash feed according to the first embodiment of the present invention shown in FIG. 1 is operated only in the heat treatment / drying / cooling mode as follows. The heat treatment / drying / cooling mode is an operation mode in which the outside air is taken in and the cool air and the hot air flow through the drying / cooling device 6 directly and through the hot air generator 19.

In a normal heat treatment step of the mash feed M, the mash feed M is continuously supplied from the hopper 1 and the connection pipe 3 and the heat treatment apparatus 4 are opened when the shutter 2 is opened.
Then, it flows into the supply duct 5 and is supplied to the upper chamber of the inner chamber of the drying and cooling device 6. The mash feed M that passes through the upper gate 7 by opening the upper gate 7 enters the intermediate chamber on the intermediate gate 8 from the upper chamber, and further passes through the intermediate gate 8 by opening the intermediate gate 8 to reach the lower chamber. . Conveyor 1 from lower room through mash feed outlet 9
Discharged by 0.

As shown in FIG. 1, the air cleaning device 15 is connected to a clean air duct 16.
Is divided into two conduits, one of which extends directly towards the drying and cooling device 6, i.e. the air purifying device 1
The outside air taken in from 5 is purified and passes through a clean air duct 16 as cold air to the lower chamber in the drying and cooling device 6, where the dried mash feed M already in the intermediate chamber is present.
To cool. The other pipe line from which the clean air duct 16 is separated is a hot air generator 19 and a hot air duct 18 ''.
The clean air reaching the hot air generator 19 via the air supply duct 18 is heated there and is passed through the hot air duct 18 ″ as hot air to the drying and cooling device 6. Is supplied to the intermediate chamber of the container inner chamber. In the intermediate chamber, the cold air and the hot air merge. However, hot air blows through the mash feed M in the upper chamber through the upper gate 7 from the intermediate chamber, so that the mash feed M can be dried by heat in the upper chamber. After passing through the filter 11, the exhaust duct 13
Through the fan 14 to the outside. At this time, the fine powder collected by the filter is immediately and continuously returned to the mash feed M in the upper chamber.

The heat treatment equipment for chicken mash feed according to the second embodiment of the present invention according to FIG. 2 can be operated in three main operation modes as follows.

In the normal heat treatment step of the mash feed M, the mash feed M is continuously supplied from the hopper 1 and the connection pipe 3 and the heat treatment apparatus 4 are opened when the shutter 2 is opened.
Then, it flows into the supply duct 5 and is supplied to the upper chamber of the inner chamber of the drying and cooling device 6. The mash feed M passing through the upper gate 7 by opening the upper gate 7 enters the intermediate chamber on the intermediate gate 8 from the upper chamber, and then reaches the lower chamber by opening the intermediate gate 8 therefrom. It is discharged from the lower chamber via a mash feed outlet 9 by a conveyor 10.

As shown in FIG. 2, when the operation mode of the heat treatment equipment for chicken mash feed is set to the heat treatment / drying / cooling operation mode, the clean air duct 16, the bypass pipe 17, The clean air reaching the hot air generator 19 via the air supply duct 18 is heated there and is supplied as hot air to one chamber of the drying and cooling device 6 through the hot air duct 18 '', from which the upper gate is removed. Mash feed M in the upper room with hot air passing through 7
, The mash feed M can be dried by heat in the upper chamber. At this time, the on-off valves in the circulation ducts 12 and 12 ′ connecting the upper chamber of the drying and cooling device 6 provided with the upper filter 11 and another chamber, here, the intermediate chamber, via the filter 11 are closed. Further, the fan 20 is stopped, and the on-off valve in the exhaust duct 20 'is also closed. Further, the outside air taken in from the air purifying device 15 is purified and passes through the clean air duct 16 as cold air to reach the lower chamber in the drying / cooling device 6, from which the air blows upward and the dried mash which is already in the intermediate chamber. After cooling the feed M, it passes through the upper chamber together with the hot air coming from the hot air duct 18 ″, further passes through the filter 11, and is discharged from the exhaust duct 13 through the fan 14 to the outside. At this time, the fine powder collected by the filter is immediately and continuously returned to the mash feed M in the upper chamber.

The cleaning mode of the operation of the heat treatment equipment for chicken mash feed as shown in FIG. 3 is performed as follows. The cleaning mode is an operation mode in which outside air is taken in and cool air flows through the filter 11 of the heat treatment apparatus 4 and the drying / cooling apparatus 6 via the fan 20. For example, after the heat treatment of a predetermined amount of the mash feed M of a certain lot is completed, the operation of the heat treatment equipment of the chicken mash feed is switched to the cleaning mode before the processing of the predetermined amount of the mash feed M of the next lot. . This switching can be performed automatically through a control device (not shown) or manually by an operator.

As a result, the clean air coming from the air cleaning device 15 is sucked into the fan 20 through the bypass pipe 17 and the air supply duct 18, and is exhausted from the outlet through the exhaust duct 20 'into the connection pipe 3. At this time, since the shutter 2 is closed, the clean air flows through the heat treatment apparatus 4 from above to below, enters the supply duct 5, and reaches the dry cooling unit 6 from the supply duct 5, where the clean air duct 16, Bypass pipe 18 ′, hot air duct 18 ″ and circulation duct 12,
Since the on-off valve in 12 'is closed, the cleaning clean air flows from the upper chamber of the drying / cooling device 6 to the filter 11,
The air is sucked by the fan 14 through the exhaust duct 13 and discharged outside. At this time, the residue collected and dropped by the filter 11 can be recovered by the reverse rotation drive of the conveyor 10.

As shown in FIG. 4, the sterilization mode of the operation of the heat treatment equipment for chicken mash feed is performed as follows. In the sterilization mode, the hot air generated by the hot air generator 19 is supplied to the fan 2 in the air circulation path in which the heat treatment apparatus 4, the drying / cooling apparatus 6, the bypass pipe 18 'and the pipe 10 constitute one closed cycle.
This is an operation mode that circulates through 0. This sterilization mode can be performed automatically via a control device (not shown) or manually by an operator.

After the operation of the heat treatment equipment for chicken mash feed, and after the cleaning mode ends, the heat treatment equipment for chicken mash feed is sterilized periodically. Hot air generator 19
Is heated by the fan 20 and rises upward in the air supply duct 18, enters the connection pipe 3 from the outlet of the fan 20 via the exhaust duct 20 ', and is heated by the heat treatment apparatus 4.
Through the supply duct 5 and into the drying and cooling device 6.
At that time, the filter 11 and the circulation ducts 12 and 12 'enter the intermediate chamber from the upper chamber of the drying and cooling device 6, and further enter the lower chamber through the intermediate gate 8, and pass through the bypass pipe 18' with an open valve. Flow path returning to the hot air generator 19 again. Thereafter, sterilization by hot air is continued through the air flow circulation as described above.

[0043]

According to the heat treatment equipment for chicken mash feed according to the present invention, according to the first embodiment, the chicken feed is heat-treated in the form of mash, dried and cooled, and the fine powder containing the additive is collected by the filter. As a result, the collected fine powder is immediately returned to the feed without being discharged to the outside together with the exhaust air, so that a mash feed M having the correct component ratio of the feed can be obtained as an essential advantage. .

According to the second embodiment, the same effect as described above can be obtained by the heat treatment / drying / cooling mode operation, and the heat treatment / drying / cooling of a predetermined amount of chicken mash feed of a certain lot by the cleaning mode operation. Later, the mash feed M remaining in the chicken mash feed heat treatment facility is completely removed before the heat treatment of a predetermined amount of the mash feed M of the next lot, whereby the components of the mash feed M product are more accurately determined. Will be maintained. Further, recontamination of the heat-treated feed can be prevented. This eliminates the need for manual cleaning of the equipment and improves productivity. In addition, the sterilization mode is periodically performed to completely sterilize the path of the mash feed M, keep the mash feed production equipment always clean, and achieve safe mash feed production for chickens.

[0045]

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing the entire configuration of a first embodiment of a heat treatment facility for chicken mash feed according to the present invention.

FIG. 2 is a conceptual diagram showing the overall configuration of a second embodiment of the heat treatment equipment for chicken mash feed according to the present invention, and the heat treatment equipment for chicken mash feed is operated in a heat treatment / drying / cooling mode. It is a conceptual diagram showing the flow of the air of FIG.

FIG. 3 is a conceptual diagram showing an air flow during a cleaning mode operation of the heat treatment equipment for chicken mash feed shown in FIG. 2;

FIG. 4 is a conceptual diagram showing the flow of air when the heat treatment facility for chicken mash feed shown in FIG. 2 is operated in a sterilization mode.

FIG. 5 is a conceptual diagram showing an optimal heat treatment apparatus for the heat treatment equipment for chicken mash feed shown in FIGS. 1 and 2.

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5;

FIG. 7 is a conceptual diagram of a conventionally known pellet cooler.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hopper 2 Shutter 3 Connection pipe 4 Heat treatment apparatus 5 Supply duct 6 Drying / cooling device 7 Upper gate 8 Intermediate gate 9 Mash feed outlet 10 Conveyor 11 Filter 12 Circulation duct 12 'Circulation duct 13 Exhaust duct 14 Fan 15 Air cleaning device 16 Clean air duct 17 Bypass pipe 18 Air supply duct 18 'Bypass pipe 18' 'Hot air duct 19 Hot air generator 20 Fan 21 Tubular casing 20' Exhaust duct 22 Emission control device 23 Side plate 24 Side plate 25 Opening 26 Temperature sensor 27 Drive motor 31 Rotary shaft 31 'Rotary shaft 32 Blade 33 Heater 34 Insulation material 41 Hopper 42 Shutter 43 Feeder 44 Pellet mill 45 Feed duct 46 Pellet cooler 47 Gate 49 Pellet feed outlet 53 Exhaust duct 54 Fan 5 cyclone

Claims (6)

(57) [Claims] In a heat treatment facility for chicken mash feed, a heat treatment device (4) is arranged following a hopper (1) into which a mash feed (M) before heat treatment is introduced. A supply duct (5) is connected to a drying / cooling device (6) provided with a filter (11) at an upper portion, and an outlet (9) for mash feed is provided in the drying / cooling device (6). An exhaust duct (13) is connected to the device (6) via a filter (11).
The fan (14) is connected to 3), while the clean air duct (16) connected to the air cleaning device (15) is divided into two pipes, one of which is directly dried. The other pipe is connected to the cooling device (6), and the hot air generator (19) and the hot air duct (18 '')
The heat treatment equipment for chicken mash feed, wherein the heat treatment equipment is connected to a drying and cooling device (6). 2. The clean air duct (16) connected to the air cleaning device (15) is divided into two conduits, one of which is directly connected to the drying and cooling device (6), and the other. The other pipe is connected to a drying and cooling device (6) via a hot air generating device (19) and a hot air duct (18 ''), and the drying and cooling device (6) is connected through an intermediate gate (8). It consists of at least two chambers which communicate with each other, wherein the clean air duct (16) and the hot air duct (18 '') are connected by a bypass pipe (18 '), and the other conduit is The fan (20) is connected to the fan (20) via the air supply duct (18) of the hot air generator (19).
0) is connected to the heat treatment device (4) via an exhaust duct (20 '), and the filter (1)
One chamber and another chamber of the drying and cooling device (6) provided with 1) are connected to the circulation duct (12, 1) through the filter (11).
2 '), the ducts or bypass pipes (12, 12', 16, 18, 1, 1)
8. The heat treatment equipment for chicken mash feed according to claim 1, wherein the on-off valves for opening and closing the pipelines are built in each of 8 'and 18'). 3. An upstream inlet for mash feed (3).
And a tubular casing (21) arranged horizontally or inclined and having a downstream outlet, and the upstream end and the downstream end of the tubular casing (21) are provided with side plates (23, 2).
4), the tubular casing is provided with a plurality of openings (25) on the upper surface thereof, and a nozzle for injecting steam supplied from a steam source and a liquid as necessary are provided in each of the openings. A jettable nozzle is connected, and a plurality of vanes (32) for stirring the steam injected into the tubular casing are arranged inside the tubular casing (21) at intervals. Rotary axis (31, 3
1 '), and both ends of the rotating shaft (31, 31') are supported by the side plates (23, 24), driven by driving means provided outside the casing, and further, the discharge port is provided. The heat treatment device (4) according to claim 1 or 2, further comprising a discharge amount adjusting device (22) for adjusting the residence time of the feed guided into the tubular casing (21). Heat treatment equipment. 4. A heat treatment device (4) for cooling the pellet feed and separating fines by sucking cooling air through a gate having an opening in the central region or formed as a perforated plate. A suitably formed pellet cooler (46) is used as a heat treatment device for the mash feed, comprising a casing having an upstream inlet and a downstream outlet for the mash feed, wherein steam is introduced into the casing. It has a nozzle for spraying and a stirring means for the mash feed in the casing, in which case the heat treatment device has a 70 ° effect for sterilizing the mash feed in the casing.
3. The heat treatment equipment according to claim 1, wherein the heat treatment equipment has a function of maintaining the temperature at C or more for 1 minute or more. 5. The heat treatment equipment according to claim 2, wherein the operation mode is such that the open / close valve in the duct or the bypass pipe is opened / closed so that the operation mode takes in the outside air and the hot air generating apparatus. (19) A heat treatment / dry cooling mode in which cool air and hot air flow through the drying / cooling device (6) through the drying / cooling device (6), and a filter of the heat treatment device (4) and the drying / cooling device (6) through intake of outside air and a fan (20). (1
Cleaning mode or heat treatment device (4) for passing cool air through 1), drying cooling device (6), bypass pipe (1)
8 ') and the piping (18) as one closed cycle can be switched to a sterilization mode in which hot air generated by a hot air generator (19) is circulated through a fan (20) through an air circulation path. , The heat treatment equipment. 6. The heat treatment equipment according to claim 1, wherein the heat treatment equipment can be used for heat treatment of mash feed for livestock other than chickens.