JP2540734B2 - Volume reduction solidification equipment for waste containing plastics - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic for crushing, kneading, compressing, heating to melt general municipal / household waste containing plastics, melting, consolidating and drying to obtain a solidified product. Waste volume solidification equipment, including
More specifically, the present invention relates to an improvement of a solidifying apparatus for reducing the volume of waste containing plastic, which has a more compact structure in the apparatus and promotes exothermic melting to obtain a solidified product speedily.

[0002]

2. Description of the Related Art The problem of effective recycling of general municipal / household wastes and industrial wastes containing a large amount of plastics, especially shredder dusts and supermarket wastes that have recently been discarded in large quantities, is a problem of petroleum resources. It is no exaggeration to say that this is the most important issue for Japan's industrial development along with the issue of energy conservation for conservation. It has been a long time since this problem was exclaimed, but since then, efficient solutions have been earnestly studied in various fields and have been put to practical use as raw materials for the production of some regenerated fuels. In addition, it has been proposed to extend the life of landfill sites by reducing the volume and solidifying those containing a large amount of vinyl chloride.

An apparatus for producing this kind of solidified product is disclosed in the original specification of Japanese Utility Model Application Laid-Open No. 63-161803, from page 6, line 8 to page 7, line 6, and disclosed in FIG. There is. In this waste plastic material melting and solidifying apparatus, as shown in FIG. 7, the casing 101 is a cup-shaped body having a cross-section and the waste plastic material charged through the charging port 102 has already been collected and roughened in this process. It is in the state of plastic pieces that have undergone crushing, primary and secondary sorting. Two screws 103 and 104 having axes parallel to each other are inserted and mounted in the casing, and each screw is formed of a screw shaft 105, 106 and a screw blade 107, 108, and each screw is outside the casing. Can be rotated independently of each other by a driving source (not shown) connected to the. In addition, the screw blades 107 and 108 draw spirals in the opposite directions to cut and crush the contained dust and feed them forward. The front casing and the screw blades respectively shrink at substantially the same ratio and are compacted in a state of being squeezed from the horizontal direction up to that point. A heater 109 is provided around the consolidation portion, where the material is heated and melted, and is squeezed out of the discharge port 110 as two rods in a solid state and collected. .

[0004]

In the conventional solidification apparatus for reducing the volume of waste containing waste plastic material as described above, the above-mentioned waste introduced from the inlet 102 is crushed,
Since the amount of heat generated by compression in the process of kneading and compression is small and the waste plastic material is insufficiently melted, it is heated from the outside, resulting in a complicated structure and extra energy consumption. It will be.

The present invention is intended to solve the above-mentioned problems of the conventional apparatus, and has a simple and compact structure to increase the degree of compression and increase the amount of heat generation, without receiving the supplement of heat energy from the outside. An object of the present invention is to provide a solidifying apparatus for reducing the volume of waste containing plastic, which is capable of sufficiently melting the plastic and can obtain a solidified product having excellent shape retention so that it can be used as a recycled solid fuel or landfill. I am trying.

[0006]

In order to achieve the above-mentioned object, the apparatus for solidifying the volume of waste containing plastic according to claim 1 of the present invention has an input port into which waste containing plastic is input. It is rotated so as to be bitten from top to bottom in a casing having one end and a solid waste discharge port at the other end, and crushes, kneads, compresses, and melts the input waste. A waste containing plastic that rotatably supports a pair of spiral body and a shaft with a compressed body that are conveyed to the discharge port side while being consolidated, and that has a lining body provided in the casing corresponding to the spiral body and the compressed body. In the volume reducing and solidifying device, a spiral body, which is opposite to the upstream spiral body, is attached to the downstream side of the compression body of one of the pair of spiral bodies and the compression body-equipped shaft, and the other main spindle. And the upstream spiral on the downstream side of the compressed body of Flip is characterized by-hand helix is provided an outlet mounted and downstream side spiral above solidified on the downstream side of the housing end wall.

According to a second aspect of the present invention, the pair of spiral bodies and the shaft with the squeezing body are rotationally driven at a constant speed, and the opposite inner sides of the outer peripheral portions of the spiral bodies are arranged in an overlapping state. I can. Further, as described in claim 3, one of the pair of spiral bodies and the shaft with the compression body is rotated at an unequal speed, one of which is fast and the other of which is slow, and the outer peripheral portions of the respective spiral bodies are spaced from each other on the inner side opposite to each other. Arranged. Further, as described in claim 4, the inner lining body in the casing is provided with a plurality of rail-like protruding liner blocks or linear grooved liner blocks facing the spiral body of the pair of shafts with a smaller gap. It can be configured to have a liner block with a slanted groove facing the compressed body. According to a fifth aspect of the present invention, the casing has a steam vent opening at an upper part on the downstream side of the compressed body, and a water supply pipe for selectively injecting temperature control water from the opening is provided in the opening.

According to a sixth aspect of the present invention, the main shaft is detachably provided with a short shaft with a tapered spiral blade, which is the same as the spiral body, at the terminal end, and the solid product discharge port is replaceable. It consists of a single-hole nozzle. As described in claim 7, a replaceable porous plate is attached to the solid product discharge port of the casing. As described in claim 8, the reverse-handed spiral on the downstream side of the squeezing body of the counter shaft is composed of a plurality of oblique tooth blades.

[0009]

In the apparatus for solidifying a volume of waste containing plastic according to claim 1 having the above construction, the waste introduced from the inlet is provided on a pair of shafts which are bite from the top to the bottom. It is crushed and kneaded by the spiral body and compressed body, and the casing lining body, and conveyed to the discharge side, and is pushed back to the main spindle side while being pushed back by the reverse-handed spiral body attached to the downstream side of the compressed body of one of the auxiliary shafts. They are joined together and then transported to the discharge port by the spiral of the main shaft. At this time, the degree of compression is increased by the amount of merging, the heat generation is increased, and the melting of the plastic is promoted, so that a solid product having good shape retention can be obtained. The plastic enables solidification of the product after melting if it is mixed in the waste in an amount of 3% or more almost uniformly.

In the apparatus according to the second aspect of the present invention, the pair of spiral bodies and the shaft with the compression body are rotated at a constant speed, and the outer peripheral portions of the spiral bodies are arranged so that the opposite inner sides are overlapped with each other so that crushing and kneading are promoted. Moreover, a simple rotation drive means in which gears of equal pitch circles are meshed can be used. Claim 3
In the device described above, the pair of spiral bodies and a shaft with a squeezing body, one is fast, the other is rotated at a slow unequal speed, the outer peripheral portion of each spiral is arranged so as to be spaced on the inside facing each other, Crushing and kneading are promoted further and melting is promoted further. The compression degree can be increased by increasing the rotation speed of the counter shaft. Further, in the apparatus according to claim 4, the inner lining body in the casing has a plurality of rail-like protruding liner blocks or linear grooved liner blocks facing the spiral body of the pair of shafts with a smaller gap. It has a liner block with a slanted groove facing the compressed body, which greatly enhances crushing and kneading, and the crushing action further crushes the waste finely and promotes melting of the plastic to maintain the shape. A solid product with good properties can be obtained.

In the device according to claim 5, the casing is
Since it has a steam vent opening in the upper part on the downstream side of the compressed body, and a water supply pipe for selectively injecting water for temperature control from the opening is provided in the opening, moisture that is an obstacle to solidification of the molten plastic is provided. Can be discharged from the opening as water vapor and solidification can be accelerated, and a solidified product with good shape retention can be obtained.
When hydrogen chloride or vinyl chloride, which generates chlorine gas at high temperatures, is mixed in the plastic, temperature control water injection for lowering the temperature can be selectively performed from the opening through the water supply pipe. In the device according to claim 6, the main shaft is
The short shaft with tapered spiral blades, which is the same as the spiral body, is detachably attached to the end, and the solid product discharge port is
A replaceable single-hole nozzle is attached, and a block-shaped solid product suitable for landfilling can be obtained. In the device according to the seventh aspect, a perforated plate is replaceably attached to the solid product discharge port of the casing, and a solid product suitable for regenerated fuel can be obtained. Further, in the device according to claim 8, the counter-inverted spiral on the downstream side of the squeezing body of the counter shaft is composed of a plurality of beveled blades, and pushing of the intermediate product to the main shaft side is repeated many times. Thus, the melting of the plastic and the consolidation into the solidified product are promoted.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a bag making and filling machine according to the present invention. FIG. 1 is a horizontal cross-sectional view of a first embodiment of a solidifying apparatus for reducing the volume of waste containing a plastic material according to the present invention, and FIG.
A sectional view taken along the line I-II, and FIG.
-III is a sectional view, a horizontal sectional view of a modified example of the single-hole nozzle portion of the same embodiment, FIG. 5 is a second volume reduction solidification apparatus for waste containing plastic material according to the present invention FIG. 6 is a partially cutaway vertical cross-sectional view of the embodiment, and FIG. 6 is a horizontal cross-sectional view of a spindle side discharge port portion of the same embodiment.

1 to 4, an apparatus 1 for reducing the volume of waste containing plastic according to a first embodiment of the present invention 1
The crushing, kneading, compression and crushing are performed while conveying the waste containing the injected plastic in the longitudinal direction from the waste input port 11a at one end to the discharge port 11c at the other end. The elongated casing 1 melts the plastic by heat generation and solidifies by the extrusion and drying action at the discharge port 11c formed in the casing rear end wall W2, and is at least vertically separable into two parts.
1, a pair of main and sub rotary shafts 12 which are arranged substantially horizontally in the longitudinal direction and are driven to rotate at a constant speed in opposite directions (indicated by arrows R1 and R2) so as to be bitten between the shafts from above. 13, the first spiral bodies 14 and 14 ', the compressed bodies 15 and 15', and the second spiral bodies 16 and 16 'which are sequentially attached to the respective rotary shafts 12 and 13 from the upstream side, and these spiral bodies and compressed bodies A wear resistant lining body (liner) detachably attached to the casing 11 by an external wedge W with a predetermined gap.
30 and solidification means 20 provided in the discharge port 11c
It consists of and. In particular, in this embodiment, as the solidification means 20 at the discharge port 11c of the final end wall W2, in order to treat the waste containing the plastic polymer such as vinyl chloride that emits a toxic gas when burned and take it out as a solidified product suitable for landfilling. Equipped with a single hole nozzle. Therefore, in order to facilitate the pushing into the inside of the single-hole nozzle 20 at the final end of the main shaft 12, the short shaft 17 with tapered spiral blades, which is the same as the spiral bodies 14 and 16, is detachably attached.

Bearings A, B provided on the front end wall W1 in the longitudinal direction in an elongated casing 11 installed horizontally and having a substantially oval cross section (can also be provided in a reduction gear box of a drive unit). ) Side by side in a cantilever state, and a pair of main and sub-rotaries that are driven to rotate at a constant speed in opposite directions so as to bite from the top to the bottom on the inside (adjacent inside). The driving shafts 12 and 13 are driven by the engaging means formed of engaging surfaces each having a polygonal (regular hexagonal shape in the present embodiment, but not limited to this) cross section from the inlet side to the outlet side. The first spiral 14, 14 ',
The press bodies 15, 15 'and the second spiral bodies 16, 16' are attached. The first spirals 14 and 14 'are initially longer than the second spirals 16 and 16' in order to sufficiently perform crushing and kneading. The spirals 14 and 16 for the main shaft 12 are
The right hand spiral blades 14b and 16b formed on the outer peripheral surfaces of the cylindrical bodies 14a and 16a engaged with the auxiliary shaft 13
Spirals 14 ', 16' for use in the left-handed spiral blade 14'b and a plurality of right-handed helical blades formed on the outer peripheral surface of the cylinders 14a, 16a engaged with the shaft 13. 1
6'b. Opposing first spirals 14, 1
Since the 4 ′ spiral blades 14b and 14′b rotate at a constant speed, they are arranged in a slightly overlapping state so as to mesh with each other. The right-handed helical blade 16'b of the counter shaft 13 is crushed and kneaded by the first spiral blades 14b, 14'b, and the compressed body 15,
The second spiral body 16 with the spindle 12 is applied with thrust so that the intermediate product 15 'is compressed and crushed to return to the spindle 12 side.
Will be merged into the single-hole nozzle 20 on the downstream side to enhance the consolidation. The right-handed spiral 16 'is divided into two blocks, an upstream side and a downstream side, for each helical blade 1.
6'b is shifted in the circumferential direction and combined, and the spindle 12
The transfer effect to the side is enhanced.

Further, the right-handed helical blade 16'b can be configured so that its lead angle is increased or the number thereof is increased to increase the transfer amount to the main shaft 12 side. On the contrary, it is also possible to reduce the compaction by attaching a right-handed single row of second spiral blades of approximately one turn to the cylindrical body 16a.
When the spiral blade 16′b is provided on the spiral body 16 ′, a thick liner block 31 ′ is added to prevent the gap from becoming too large. In addition to the above-mentioned constant speed rotation,
It is assumed that the pair of spiral blades and the shafts 12 and 13 with the compressed body are rotated so that one is fast and the other is slow at a non-uniform speed, and the outer peripheral portions of the respective spiral blades are arranged so as to be spaced on the inner side facing each other. Further, crushing and kneading are further promoted, and melting is also promoted. When the rotation speed of the counter shaft 13 is increased, transfer is promoted and the degree of compression can be increased.

The squeezing bodies 15, 15 'have a truncated cone-shaped portion 15a, 15'a on the upstream side and a tubular portion 15b, 15' on the downstream side.
It consists of b and. The first and second spiral blades 14b and 16 are provided on the outer peripheral surface of the truncated cone-shaped portion and the cylindrical portion.
The same spiral grooves 15c and 15'c as b are carved in a milled shape at a plurality of intervals (for example, 3 rows) at equal intervals. Spiral blade 14
b, 14'b, 16b, 16'b and press bodies 15, 1
The gap between 5'and the inner lining body 30 attached to the inner surface of the casing 11 is made small so that the waste can be crushed, compressed and crushed, whereby the waste is pressurized and generates heat and melts. . This gap can be arbitrarily changed by appropriately replacing the cassette-type lining body 30 of various thicknesses, whereby appropriate compression, pressurization, etc. can be adjusted in response to changes in materials. A dense solid substance of stable quality (especially hardness) is obtained. By the way, the lining body 30 in the casing has spiral blades 14b, 14'b, 16b,
16'b of a plurality of rows of linear grooved liner blocks 31 (which may be a plurality of rail-like protruding liner blocks) and the compressed body 1 with a smaller gap.
Liner block 32 with diagonal groove facing 5 and 15 '
It consists of and. Liner blocks 31, 32
2 has a structure in which it is divided as shown in FIGS. 2 and 3 and individually fixed in the casing 11 by a wedge W.

The casing 11 includes first spiral bodies 14, 1
4'is housed in the first block 11A and the compressed body 15 and the second block 11B is housed in the second spirals 16 and 16 ', which are separably connected by bolts and nuts via flanges. . Also, the first block 11
A is connected to the front end wall W1 via the front flange and to the second block front flange via the rear flange. The single-hole nozzle 20 is attached to the main shaft side discharge port 11c of the rear end wall W2 to which the rear flange of the second block 11B is connected.
Is installed. As shown in FIG. 4, the single-hole nozzle 20 is composed of a taper portion and a straight portion, and the straight portion is provided with a plurality of heating heaters H for preventing warm-up at the time of starting and solidification during operation interruption. . The tapered portion is provided with a conical liner 21, the straight portion is provided with a cylindrical liner 22, and each inner surface is provided with, for example, 90 °.
Grooves 20A are formed at a pitch so that a cylindrical solidified product P having protrusions on the outer peripheral surface can be obtained. The liners 21 and 22 are fixed to the end surface of the nozzle 20 with bolts via a pressing ring 23. The cross-sectional shape of the single-hole nozzle 20 is not limited to a circular shape, but may be a polygonal shape.

A charging port 11a is provided in the upper portion of the partition body of the first block 11A, and a steam exhaust means Q is provided in the front upper portion of the upper portion of the partition body of the second block 11B.
The steam exhausting means Q is composed of a steam vent opening, and a water supply pipe for selectively injecting temperature control water from the opening is provided in the opening, so that water that is an obstacle to solidification of molten plastic is opened as steam. It can be discharged from the mold to accelerate solidification, and a solidified product with good shape retention can be obtained.
When vinyl chloride, which generates chlorine gas, hydrogen chloride, etc., is mixed in the plastic when it reaches a high temperature of 80 ° C or more, water for temperature control to lower the temperature is optionally selected from the opening through the water supply pipe. Can be done.

Next, a solidification apparatus for reducing the volume of waste containing a plastic material according to a second embodiment suitable for producing regenerated solid fuel will be described with reference to FIGS. 5 and 6. This volume reducing and solidifying apparatus 1'has the same structure as that of the first embodiment except that a perforated plate 25 suitable for producing regenerated solid fuel or aggregate is provided in a discharge hole 11c together with a guide plate 25a. The same constituent members are designated by the same reference numerals. The different structures will be described below. A perforated plate 25 is replaceably attached to the solid product discharge port 11c of the casing 11 so that a small solid product suitable for regenerated fuel can be obtained. The guide plate 25a on the upstream side (which is provided in place of the rear end wall W2 of the casing) and the perforated plate 25 on the downstream side are respectively connected to the second block 11 by bolts and nuts.
B is connected to the rear flange F2. Outlet 11c
In the guide plate 25a, the guide plate 25a has a large number of circles, cross-shaped strips and other triangular shapes in accordance with requirements in a surface area corresponding to the outer peripheral portion of the spiral body,
The through holes 26a having various shapes such as a quadrangle are arranged. A nozzle 27 having a cross-section having a shape corresponding to the through hole 26a is inserted into the through hole of the perforated plate 25 attached to the downstream side of the guide plate 25a by co-fastening.
Straight or tapered holes may be left without nozzles. When the porous plate 25 is provided at the discharge port 11c, the taper spiral blade-equipped minor shaft 17 attached to the downstream end of the main shaft 12 in the first embodiment is removed.

It is also possible to omit the guide plate 25a and directly attach the nozzles of various cross-sectional shapes to the through holes of the perforated plate 25 in a replaceable manner. Instead of the taper spiral blade-equipped short shaft 17 attached to the downstream end of the main shaft 12 in the first embodiment,
A push-in vane ring body may be attached to the downstream end of the main shaft 12 to facilitate pushing of the intermediate product into the perforated plate 25. Of course, in order to prevent freezing during the winter period, facilitate warm-up start, and also at the time of restart, the hole 26a, the nozzle 27 ...
A heater H is attached to the perforated plate 20 in order to warm and extrude the intermediate solidified product therein, and the temperature of the heater H can be controlled by the sensor 29.

[0021]

As is apparent from the above description, according to the apparatus for solidifying and reducing the volume of waste containing plastic according to the first aspect of the present invention, the waste introduced from the inlet is changed from top to bottom. Which are crushed and kneaded by a spiral body and a compression body provided on a pair of shafts and a casing inner lining body, and conveyed to the discharge side as a molten intermediate product, and the downstream side of the compression body of one auxiliary shaft. While being pushed back by the anti-handed spiral attached to the, it will be brought closer to the main shaft side and merge, and then it will be conveyed to the discharge port by the main spiral.
The degree of compression is increased by the amount of merging, the heat generation is increased, and the melting of the plastic is promoted, so that a solid product having good shape retention can be obtained.

According to the apparatus of the second aspect, the pair of spiral bodies and the shaft with the compression body are rotated at a constant speed, and the outer peripheral portions of the spiral bodies are arranged so that the opposite inner sides are overlapped with each other so that crushing and kneading are promoted. In addition, a simple rotation drive means in which gears of equal pitch are meshed can be used. Further, according to the apparatus of claim 3, the pair of spiral bodies and the shaft with the compressed body are
One is rotated at a high speed and the other is rotated at a non-constant speed, and the outer peripheral portions of the spirals are arranged so as to be spaced on the inner side facing each other.
Crushing and kneading are promoted further and melting is promoted further.
The compression degree can be increased by increasing the rotation speed of the counter shaft. Further, according to the apparatus of claim 4, the lining body in the casing is provided with a plurality of rail-like protruding liner blocks or linear grooved liner blocks facing the spiral body of the pair of shafts with a smaller gap. It has a liner block with a slanted groove facing the compressed body, which greatly enhances crushing and kneading, and the crushing action further crushes the waste finely and promotes melting of the plastic to maintain the shape. A solid product with good properties can be obtained.

According to the fifth aspect of the present invention, the casing has a steam vent opening at an upper part on the downstream side of the compressed body,
Since a water supply pipe for selectively injecting water for temperature control from the opening is provided in the opening, water that is an obstacle to solidifying the molten plastic can be discharged from the opening as water vapor to accelerate solidification and maintain shape retention. With a good solidified product,
When vinyl chloride or the like, which generates chlorine gas at high temperatures, is mixed in the plastic, water for temperature control to lower the temperature can be selectively supplied from the opening through the water supply pipe. According to the apparatus of claim 6, the main shaft is detachably provided with a short shaft with tapered spiral blades, which is the same as the spiral body, at the end portion, and the solid product discharge port has a replaceable single hole. With the nozzle attached, a block-shaped solid product suitable for landfilling can be obtained. According to the apparatus of claim 7, a replaceable perforated plate is attached to the solid product discharge port of the casing, and a solid product suitable for regenerated fuel can be obtained. According to the device of claim 8,
The counter-inverted spiral on the downstream side of the squeezing body of the counter shaft is composed of a plurality of beveled blades, and the pushing of the intermediate product to the main shaft side is repeated many times to melt and solidify the plastic. Consolidation is promoted.

[Brief description of drawings]

FIG. 1 is a horizontal cross-sectional view of a first embodiment of a volume reduction solidification apparatus for waste containing a plastic material according to the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a horizontal cross-sectional view of a modified example of the single hole nozzle portion of the same embodiment.

FIG. 5 is a partially cutaway vertical cross-sectional view of a second embodiment of the apparatus for solidifying the volume of waste containing a plastic material according to the present invention.

FIG. 6 is a horizontal cross-sectional view of a spindle side discharge port portion of the embodiment.

FIG. 7 is a horizontal cross-sectional view of a conventional volume reduction solidification device for waste containing a plastic material.

[Explanation of symbols]

1, 1 ′ Volume reduction and solidification device for waste containing plastic material 11 Casing 11a Input port 11c Discharge port 12 Main shaft 13 Secondary shaft 14, 14 ′ First spiral body 15, 15 ′ Compressed body 16, 16 ′ Second spiral body 16 'b Beveled blade 17 Short shaft with tapered spiral blade 20 Single hole nozzle 25 Perforated plate 30 Lining body 31 Linear grooved liner block 32 Oblique grooved liner block Q Vapor vent W2 Rear end wall

Claims (8)

(57) [Claims] 1. A casing having a charging port at one end for charging a waste containing plastic and a discharging port for solidified wastes at the other end so as to be bitten from top to bottom. Moves and crushes, kneads, compresses, melts and disposes the waste that is thrown in, and rotatably supports a pair of spiral bodies and a shaft with a compressed body that conveys to the discharge port side while consolidating and supports the spiral body and the compressed body. In the apparatus for solidifying the volume of waste containing plastic having an inner lining provided in the casing, the upstream spiral is provided on the downstream side of the compression body of one of the pair of spiral bodies and the compression body-equipped shaft. And the opposite handed spiral is attached, the same handed spiral as the upstream spiral is attached to the downstream side of the compressed body of the other main shaft, and the solidified product of the solidified product is attached to the downstream casing end wall of the downstream spiral. The outlet is provided An apparatus for reducing and solidifying a volume of waste containing plastic, characterized by: 2. The pair of spiral bodies and the shaft with the squeezing body,
The apparatus according to claim 1, wherein the spiral inner surfaces of the spirals are rotatably driven at a constant speed, and the opposite inner sides of the outer peripheral portions of the spirals are arranged in an overlapping state. 3. The pair of spiral bodies and the shaft with the squeezing body,
2. The device according to claim 1, wherein one of the spirals is rotated at a non-uniform speed, and the other is rotated at a slower speed, and the outer peripheral portions of the spirals are arranged so as to be spaced from each other inside. 4. The lining body in the casing faces a plurality of rail-like protruding liner blocks or linear grooved liner blocks facing the pair of shaft spirals, and faces the squeezing body with a smaller gap. The apparatus of claim 1 including a beveled grooved liner block. 5. The casing has a steam vent opening at a downstream upper portion of the compressed body, and a water supply pipe for selectively injecting temperature control water from the opening is provided in the opening. The described device. 6. The main shaft is detachably provided with a short shaft with tapered spiral blades, which is the same as the spiral body, at the terminal end, and the solid product discharge port is composed of a replaceable single-hole nozzle. The device of claim 1, wherein 7. The apparatus according to claim 1, wherein a perforated plate is replaceably attached to the solid product discharge port of the casing. 8. The device according to claim 1, wherein the counter-inverted spiral on the downstream side of the squeezing member of the counter shaft is composed of a plurality of beveled blades.