JPH046560Y2 - - Google Patents

Description

[Detailed explanation of the idea] (b) Industrial application fields The present invention relates to a feed manufacturing device.

(b) Conventional technology Conventionally, a hollow rotary shaft with screw blades arranged on the outer circumferential surface was inserted into a cylindrical outer case, and
The outer case is equipped with a compression dewatering section with a large number of liquid leakage holes and a high-temperature heating section whose outer circumferential surface is surrounded by a steam jacket, and a hollow rotating shaft whose diameter is gradually expanded in the conveying direction. Due to coaxial rotation,
The raw material supplied between the coaxial shaft and the outer case is conveyed in the direction of the product discharge port, and the discharge port is closed with a spring-loaded pressure plate to maintain a constant internal pressure of the outer case. There was a device that produced feed by dehydrating and thermally decomposing feed under pressure.

(c) Problems to be solved by the invention However, with a pressure plate biased by a spring, the plate comes to rest at a position where the biasing force of the spring and the internal pressure of the outer case are balanced, and the product is ejected. The outlet is opened continuously, and as a result, the internal pressure of the outer case decreases, and it takes time to recover the pressure.During this time, compressed dehydration and pressurized pyrolysis are not performed sufficiently, and furthermore, the product is not allowed to flow through the product outlet. Since a thick cake is continuously discharged in the form of a band, there are drawbacks such as difficulty in pulverizing for drying in subsequent steps.

(d) Means for solving the problem In this invention, a hollow rotating shaft with screw blades arranged on the outer circumferential surface is inserted into a substantially cylindrical outer case, and the outer case has many liquid leakage holes. A compression dehydration section is provided with a hollow shaft, and a high-temperature heating section whose outer circumferential surface is surrounded by a steam jacket is installed.
The product waste of the dehydration/pyrolysis equipment is configured to press and dehydrate the raw material interposed between the coax and the outer case, and to heat the raw material at high temperature under pressure using steam passed through the steam jacket and the hollow rotating shaft. It is an object of the present invention to provide a feed manufacturing device in which the outlet is configured to be openable and closable with a pressure plate urged inward of an outer case by hydraulic pressure stored in an accumulator.

(E) Function/Effect According to this invention, since the pressure plate is biased by the hydraulic pressure stored in the accumulator, by controlling the hydraulic pressure, the biasing force to the pressure plate, In other words, it is now possible to freely control the internal pressure of the outer case. For example, by energizing the pressure plate with hydraulic pressure equivalent to the set pressure inside the outer case, it is possible to prevent the internal pressure from exceeding the set pressure. When the pressure plate is displaced and the product discharge port is opened, the pressure plate is returned to its original position using hydraulic pressure higher than the hydraulic pressure equivalent to the set pressure stored in the accumulator, the product discharge port is closed, and the product discharge port is opened again. By controlling the force of the shear plate to return to the hydraulic pressure corresponding to the set pressure, the product discharge port is opened and closed intermittently, preventing a drop in the internal pressure of the outer case, and preventing the product discharge port from decreasing. The product discharged by the intermittent opening and closing becomes flaky and does not require post-processing such as pulverization for drying, or can be easily pulverized with a small amount of power.

(F) Embodiment The embodiment of the present invention will be explained in detail based on the drawings.
1 and 2 show the entire feed manufacturing apparatus, which includes a steaming apparatus 1, a pre-squeezing apparatus 2,
and a dehydration/pyrolysis device 3.The steaming device 1 consists of an outer tube 4 having a roughly gourd-shaped cross section, with two hollow screw shafts 8, 8 inserted therethrough and mounted on the outer tube 4.
A raw material input port 5 is provided at the lower end of the container, and a discharge port 6 is provided at the upper end thereof.A steam jacket 7 is provided around the outer periphery of the outer cylinder 4, and steam for heating the steam jacket and the screw shafts 8, 8 is delivered. The raw materials such as feathers input from the raw material input port 5 are transferred to the screw shafts 8, 8.
By the rotation of the outer cylinder 4, steaming is carried out in the lower part of the outer cylinder 4, and while solid and liquid are separated in the upper part, only the solids are conveyed to the discharge port 6, and are discharged from the same discharge port 6 toward the pre-squeezing device 2. are doing.

Note that the raw material is supplied after being crushed to a size of approximately 15 mm square.

As shown in FIG. 3, FIG. 4, and FIG. 5, the pre-squeezing device 2 includes a
The input port 9 opened on the top surface of the device 2 is communicated with the
The discharge port 10 is connected to the raw material supply port 1 of the dehydration/pyrolysis device 3.
It is connected to 1.

Between the input port 9 and the discharge port 10, left and right side walls 14 each having a substantially semicircular bulge on the left and right sides,
14', and a preliminary compression chamber 16 surrounded by flat front and rear side walls 15, 15'.
The left and right rotating shafts 12 and 12' are mounted in the shaft 6, and each shaft 1
2 and 12', the centers of three approximately S-shaped compression blades 13 are fixed at a predetermined distance and with a phase difference of 120°, and each shaft 12, 1
2' is fitted onto left and right gears 17, 17' which are meshed outside the pre-compression chamber 16, respectively, so as to rotate in opposite directions.

Therefore, each compressing blade 13 rotates like meshed gears with the front and back staggered.

In addition, in the figure, 18 is a bearing, and 19 is a left and right rotation shaft 1.
2, 12' drive mechanism is shown.

In the pre-squeezing device 2 configured as described above,
Raw materials such as feathers from the steaming device 1 are transferred to the left and right rotating shaft 1.
By rotating 2 and 12' in the direction of arrows 20 and 20',
It is compressed downward by the approximately S-shaped compression blades 13, the air inside is pushed out, it becomes a compacted state, and is fed into the raw material supply port 11 of the dehydration/pyrolysis device 3 in a high density state.

As shown in FIG. 6, the dehydration/pyrolysis device 3 includes a substantially cylindrical outer case 21 arranged substantially horizontally, a hollow rotating shaft 22 inserted into the case 21, and a hollow rotating shaft 22 mounted therein. The diameter gradually increases toward the product discharge port 23, and high-temperature steam can be introduced into the interior through openings at the front and rear ends of the coaxial shaft 22.

Reference numeral 24 denotes a screw blade formed on the outer periphery of the hollow rotary shaft 22, which is attached to the inner peripheral surface 2 of the outer case 21 by maintaining a predetermined slight gap with the tip 24' of the screw blade 24.
1' surrounds the hollow rotary shaft 22, and is configured to transport the raw material input into the raw material supply port 11 toward the product discharge port 23 by rotation of the hollow rotating shaft 22.

In the outer case 21 , a compression dehydration section 25 and a high temperature heating section 26 are arranged in the above order from the raw material supply port 11 to the product discharge port 23 . A large number of liquid leakage holes 27 with minute diameters are bored, and a steam jacket 28 is provided on the outer surface of the outer case 21 of the high temperature heating section 26.

In addition, numeral 37 in the figure indicates a drive mechanism for the hollow rotating shaft 22.

In addition, a pressure adjustment mechanism 29 is connected to the end surface of the outer case 21 on the product discharge port 23 side, and the pressure adjustment mechanism 29 adjusts the gap between the edge of the outer case 21 and the outer peripheral surface of the hollow rotating shaft 22. 36, a plurality of hydraulic cylinders 3 each having a ring-shaped pressure plate 30 with a substantially triangular cross section disposed on the back surface of the plate 30;
1 is used to bias the outer case 21 inward and close it, thereby maintaining the pressure of the raw material inside the outer case 21 at a level higher than the set pressure. This is generated by the hydraulic system shown in FIG. That is, a hydraulic pump 33 connected to the motor 32 generates hydraulic pressure equal to or higher than the set pressure inside the outer case 21, this hydraulic pressure is stored in the accumulator 34, and the pressure of the raw material in the outer case 21 is set. The pressure becomes higher than the pressure plate 30.
is displaced outward and the gap 36 is opened,
By activating the electromagnetic hydraulic control valve 35 and applying a hydraulic pressure higher than the set pressure stored in the accumulator 34 to the hydraulic cylinder 31, the gap 36, which was once opened, is closed with the hydraulic pressure higher than the set pressure.
Next, the oil pressure is returned to the oil pressure corresponding to the original set pressure.

In this way, the outer case 21 and the hollow rotating shaft 22
The gap 36 is closed with the pressure plate 30, and when the internal pressure of the case 21 becomes higher than the set pressure, the gap 36 is opened, and the pressure plate 30 is immediately energized to a pressure higher than the set pressure. By closing the gap 36 and returning the hydraulic pressure that energizes the plate 30 to the hydraulic pressure corresponding to the original set pressure, the opening/closing operation of the pressure plate 30 is performed intermittently. , the internal pressure of the outer case 21 is always maintained at a higher pressure than the set pressure, and the product discharged from the gap 30 is
It will be formed into flakes.

In addition, in the figure, 38 is a relief valve, 39 is a pressure reducing valve,
40 is a relief valve, 41 is a speed controller, and 42 is an oil cooler.

In addition, the dehydration/pyrolysis device is mounted on an outer case with a roughly gourd-shaped cross section, with two hollow rotating shafts arranged side by side.
It is also possible to use a two-shaft type dehydration/pyrolysis device in which the screw blades of each shaft are wrapped appropriately, and in this case, the co-rotation phenomenon in which the raw material rotates as one with the hollow rotating shaft is prevented. The effects of pressurization, stirring, and conveyance can be enhanced.

As mentioned above, since the internal pressure of the outer case 21 is always maintained at a high pressure, fat is sufficiently squeezed out from the raw material along with the juice during compression dehydration, so conventionally, the fat content in the product is excessive. Therefore, it was not possible to conduct research on feathers, blood, bones, internal organs, fat,
It is possible to manufacture feed from a mixture of skins, etc., and from animals, dead birds, eggshells, wool scraps, pig hair, seafood, their residues, etc. alone or in mixtures.

[Brief explanation of the drawing]

FIG. 1 is an overall side view of the feed manufacturing apparatus according to the present invention. FIG. 2 is a sectional view of FIG. 1. FIG. 3 is a plan view of the pre-squeezing device. FIG. 4 is a front view of the same. FIG. 5 is a sectional view of FIG. 4. Figure 6 shows
Front view of the dehydration/pyrolysis equipment (partially cut away). FIG. 7 is a hydraulic circuit diagram of the hydraulic pressure adjustment mechanism. 2... Pre-squeezing device, 3... Dehydration/pyrolysis device, 11... Raw material supply port, 21... Outer case,
22...Hollow rotating shaft, 23...Product discharge port, 24
... Screw blade, 25 ... Compression dewatering section, 26
...High temperature heating section, 27...Liquid leak hole, 28...
Steam jacket.

Claims (1)

[Scope of utility model registration request] A hollow rotary shaft 22 with screw blades 24 arranged on the outer circumferential surface is inserted into a substantially cylindrical outer case 21, and a large number of liquid leak holes 2 are inserted into the outer case 21.
7 and a high-temperature heating section 26 whose outer peripheral surface is surrounded by a steam jacket 28, the diameter of the hollow rotating shaft 22 is gradually expanded in the conveying direction, and the , the raw material interposed between the coaxial shaft 22 and the outer case 21 is compressed and dehydrated, and the steam jacket 28 and the hollow rotating shaft 22 are compressed and dehydrated.
The product discharge port 23 of the dehydration/pyrolysis device 3, which is configured to heat the raw material at high temperature under pressure with the steam passed through it, is pushed inward of the outer case 21 by the hydraulic pressure stored in the accumulator 34. A feed manufacturing device configured to be closed so as to be openable and closable with a shear plate 30.