JP2002035629A - Garbage shredding/separation device and garbage treatment equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a garbage shredding/separation device capable of efficiently separating impurities and improving the recovery rate of shredded garbage. SOLUTION: This device is provided with a cylindrical main body case 3 almost horizontally placed, a shredding chamber 18 placed within the main body case 3, a rotor 28 which is placed inside the shredding chamber 18 and fitted with blades 27 in such a way that they look like partition plates respectively, a discharge port 19 which is formed on the underside of the shredding chamber 18 and covered with a screen 21 having plural through-holes 20, a plurality of partition-plate-like vinyl cutters 33 which are arranged in the upper part of the main body case 2 parallel to each other in the axial direction and each of which extends along the rotational direction of the rotor 28, a discharge duct 36 placed also in the upper part of the main body case 3 along the tangential direction of the locus of rotation of the rotor 28, and an impurity discharge port 35 which is formed in the discharge duct 36 and has an opening. In the device, when garbage containing impurities is charged, the rotor 28 is reversely rotated toward the opening of the impurity discharge port 35 to discharge only the shredded garbage through the screen 21 and the impurities remaining in the shredding chamber 18 is discharged through the discharge duct 36 by normally rotating the rotor 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage crushing and separating apparatus for crushing garbage mixed with foreign substances such as kitchen garbage and industrial waste and separating the garbage from the foreign substances, and crushing the garbage with the garbage crushing and separating apparatus. The present invention relates to a garbage processing apparatus provided with methane fermentation processing means for performing methane fermentation processing on garbage.

[0002]

2. Description of the Related Art Conventionally, when biological garbage such as general garbage, kitchen waste from restaurants, and waste from livestock and fishery processing is biologically treated,
Since relatively light impurities such as styrofoam and resin films are mixed in the garbage, a pretreatment for removing the impurities is performed in advance.

[0003] As this pretreatment, for example, garbage in which contaminants are mixed in a two-shaft or three-shaft crusher having two or three rotating bodies having crushing blades on a rotating shaft substantially parallel to each other. Crushed, and the crushed garbage is 30 to 50 mm
In a trommel provided with a cylindrical rotary drum having a through hole, a configuration is adopted in which food waste that passes through the through hole and impurities that do not pass through are separated.

[0004]

However, in the above-mentioned configuration in which garbage is crushed and separated by crushing by the crushing machine and separation by trommel, two processes are required in two processes, and the processing facility is enlarged and installed. There is a problem that it is difficult to secure a space.

Therefore, the garbage is pulverized by the rotating force of the rotating body to discharge the crushed garbage through the screen, and the relatively lightweight impurities are blown off by the wind generated by the rotation of the rotating body to be separately discharged. A configuration that separates by discharging from the duct is conceivable.

[0006] However, in the crushing separation by the garbage crushing separation apparatus, relatively light impurities are discharged from the discharge duct by the wind generated by the rotation of the rotating body, so that the crushed garbage is discharged together with the impurities. The recovery rate of garbage discharged from the duct and processed biologically in the subsequent stage is reduced, making it impossible to process garbage efficiently, and the amount of separated impurities increases because garbage is mixed with the separately processed impurities. In addition, there is a problem that the load of processing of foreign substances increases.

[0007] In view of the above problems, the present invention provides a garbage crushing and separating apparatus and a garbage processing apparatus capable of efficiently treating garbage with methane fermentation, in which the collection rate of garbage obtained by efficiently separating and crushing impurities is improved. The purpose is to provide.

[0008]

According to a first aspect of the present invention, there is provided an apparatus for crushing and sorting garbage, wherein an input port into which garbage mixed with contaminants is introduced is opened at one end and the garbage is discharged to a peripheral surface. A main body case having a substantially cylindrical crushing chamber with an open outlet, and rotatably disposed in the crushing chamber of the main body case,
A rotating body having a rotating shaft having a rotating shaft on a central axis and a blade provided in a wall shape along the axial direction on the peripheral surface of the rotating shaft; and Drive means for colliding the garbage with the rotating blade of the rotating body to crush the garbage, and the discharge port is provided in the main body case along the rotation locus of the blade of the rotating body to close the discharge port, and the crushed garbage is provided. A screen having a plurality of insertion holes through which garbage can pass, and a screen provided on the inner peripheral surface of the crushing chamber of the main body case, the leading edge of which is a wall along the rotation locus of the blade of the rotator to remove the impurities. A cutting blade for cutting, and a foreign matter discharge port which is provided in the main body case and opens at one end into the crushing chamber in a reverse rotation direction of the rotating body, and discharges the foreign matter when the rotating body rotates forward. A discharge duct and the driver It is obtained and a control means for reversely rotating a predetermined time when the food waste the rotating body by controlling the drive is turned of.

[0009] The garbage mixed with foreign substances introduced into the crushing chamber of the main body case from the input port collides with the blade of the rotating body which rotates in the reverse direction by the driving means controlled and driven by the control means. The garbage is crushed, and the contaminants are cut by a wall-shaped cutting blade along the rotation trajectory of the rotating body, and the crushed garbage gradually passes through the insertion hole of the screen and is discharged from the discharge port, After the reverse rotation for a predetermined time, the rotating body is normally rotated under the control of the control means, and the contaminants remaining in the main body case are directed in the reverse rotating direction of the rotating body by wind force generated by the rotation of the normally rotating rotating body. The garbage is discharged from the foreign matter discharge port of the discharge duct opened to the crushing chamber, and garbage and the foreign matter are crushed and separated. Therefore, the garbage is sufficiently crushed and discharged at the time of reverse rotation, and the garbage is easily crushed and separated from the contaminants, thereby improving the collection ratio of the garbage and reducing the amount of contaminants to be separately treated. The amount of mixed garbage is reduced and the amount of contaminants to be treated is reduced, so that garbage can be efficiently processed.

A garbage crushing and separating apparatus according to a second aspect of the present invention is a substantially cylindrical shape having an opening at one end side into which garbage mixed with contaminants is charged, and an opening at the peripheral surface for discharging the garbage. A main body case having a crushing chamber in the shape of a circle, a rotary shaft rotatably disposed in the crushing chamber of the main body case, and having a rotary shaft on a central axis, and a wall formed along an axial direction on a peripheral surface of the rotary shaft. A rotating body having a blade provided in, a driving means for rotating the rotating body in one direction and crushing the inputted garbage by colliding with the blade of the rotating body to rotate,
A screen having a plurality of insertion holes provided in the main body case along the rotation path of the blade of the rotating body to close the discharge port and through which the crushed garbage can pass, and a crushing chamber of the main body case. A cutting blade that is provided on the inner peripheral surface and has a tip edge that cuts off the contaminants in a wall shape along the rotation trajectory of the blade of the rotating body; and a cutting blade that is provided on the main body case and opens at one end toward the crushing chamber. A discharge duct having a foreign substance discharge port and discharging the foreign substance by rotation of the rotating body, a lid body for opening and closing the foreign substance discharge port of the discharge duct, and when the garbage is thrown in Control means for closing the impurity discharge port of the discharge duct with the lid for a predetermined time.

[0011] The garbage mixed with foreign substances introduced into the crushing chamber of the main body case from the input port is driven in a state where the foreign substance discharge port opening toward the crushing chamber of the discharge duct is closed with a lid. The garbage is crushed by colliding with the blade of the rotating body rotating by the means, and the foreign matter is cut by a wall-shaped cutting blade along the rotation trajectory of the rotating body, and the crushed garbage is gradually reduced. After passing through the insertion hole of the screen and discharging from the discharge port and rotating the rotating body for a predetermined time, the control means opens the foreign substance discharge port of the discharge duct closed by the lid and remains in the main body case. The contaminants to be discharged are discharged from the contaminant discharge port of the discharge duct by wind power generated by the rotation of the rotating body, and garbage and the contaminants are crushed and separated. Therefore, the garbage is sufficiently crushed and discharged while the contaminant discharge port is closed, and the garbage is easily and efficiently crushed and separated from the contaminant, thereby improving the garbage collection rate and separately treating the garbage. The amount of garbage mixed in the contaminants decreases, the amount of the contaminants to be treated decreases, and the garbage is efficiently processed.

The garbage crushing and separating apparatus according to claim 3 is the garbage crushing and separating apparatus according to claim 1 or 2,
The foreign substance discharge port of the discharge duct opens longitudinally along the axial direction of the crushing chamber.

[0013] By opening the foreign substance discharge port of the discharge duct longitudinally along the axial direction of the crushing chamber, the opening area is increased, and the foreign substance is discharged from the foreign substance discharge port. Are smoothly discharged without being blocked by the foreign matter discharge port.

According to a fourth aspect of the present invention, there is provided the garbage crushing and separating apparatus according to any one of the first to third aspects, wherein the rotating body includes a cleaning member whose leading edge contacts the screen by rotation. It is a thing.

By providing a cleaning member on the rotating body, the leading edge of which contacts the screen by rotation, the through hole of the screen is prevented from being clogged with garbage and foreign substances, and the crushed garbage is efficiently discharged. And the efficiency of crushing and separating garbage is improved.

According to a fifth aspect of the present invention, there is provided the garbage crushing and separating apparatus according to any one of the first to fourth aspects, wherein the main body case is provided so that a central axis thereof extends along a substantially horizontal direction. The discharge port is opened downward on the peripheral surface of the main body case, and the discharge duct is configured such that the contaminant discharge port opens at an upper portion of the peripheral surface of the main body case.

A discharge port is formed to open downward on the peripheral surface of the main body case having a central axis extending substantially in the horizontal direction, and a discharge port for foreign substances of the discharge duct is formed to open upward. As a result, the crushed garbage moves downward by the action of gravity when the discharge opening is opened, and is discharged by a screen closing the discharge opening, and relatively light impurities are generated by the wind generated by the rotation of the rotating body. , And the crushed garbage and impurities are easily separated at a high level.

According to a sixth aspect of the present invention, there is provided a garbage disposal apparatus, wherein the garbage crushing and separating apparatus according to any one of the first to fifth aspects and garbage crushed by the garbage crushing and separating apparatus are subjected to methane fermentation. And a methane fermentation treatment means for decomposition treatment.

Further, the garbage is easily crushed and separated from the foreign matter with high efficiency, thereby improving the recovery rate and reducing the amount of the foreign matter to be treated, thereby efficiently processing the garbage.
The garbage crushed and separated by the garbage crushing / separating apparatus according to any one of (1) to (5) is processed by methane fermentation by the methane fermentation treatment means. Before the crushing and separation of methane gas generated by methane fermentation, the amount of garbage generated for garbage increases, and the efficiency of garbage disposal improves.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of an embodiment of the garbage processing apparatus of the present invention will be described below with reference to the drawings.

1 to 5, reference numeral 1 denotes a garbage crushing and separating apparatus. The garbage crushing and separating apparatus 1 includes a main body case 3 supported by a support base 2. The main body case 3 is formed in a substantially cylindrical shape, and is provided with a rotating shaft 5 rotatably supported on a bearing 4 provided on the support base 2 and rotatably penetrated and held on a substantially central axis. I have. A pulley 6 is provided integrally with one end of the rotating shaft 5.

A substantially upper half surface is opened at one end side of the main body case 2, and a box-like portion 9 which defines a carry-in chamber 8 is provided inside the opening edge in a rectangular cylindrical shape having a continuous lower end. Further, on the upper surface of the box-shaped portion 9, the upper end is filled with garbage mixed with relatively light contaminants such as general garbage, kitchen garbage of restaurants, styrofoam such as waste of livestock and fishery processing, and resin film. A generally square tubular charging chute 11 opening a charging port 10 to be opened is provided so that the inner periphery thereof communicates with the loading chamber 8 in the box-shaped portion 9.

A loading chamber 8 is provided at one end of the rotating shaft 5.
The loading rotator 13 is rotatably supported at the inside. The carry-in rotator 13 includes a cylindrical rotary cylinder 14 on the inner periphery of which the rotary shaft 5 is rotatably fitted, and a screw blade 15 spirally provided on the outer peripheral surface of the rotary cylinder 14. . A rotary pulley 16 located outside the main body case 2 is integrally provided at one end of the rotary cylinder 14 of the loading rotary body 13.

At the other end of the main body case 2, a substantially cylindrical crushing chamber 18 is defined adjacent to the loading chamber 8.
In the lower part of the peripheral surface of the main body case 2, there is provided a discharge port 19 that opens the lower surface of the crushing chamber 18 downward.
Further, the discharge port 19 is closed and provided with a punched metal screen 21 which is curved in the same arc shape as the bottom surface of the loading chamber 8 and has a plurality of insertion holes 20. In the lower part of the crushing chamber 18 of the main body case 2, an upper opening edge is a discharge port.
Discharge chute located at the bottom of screen 21 following 19
22 are provided integrally.

At the lower end of the discharge chute 22, there is provided a transfer device 25 provided with a transfer motor 24 such as a screw conveyor for discharging crushed garbage inserted through the insertion hole 20 of the screen 21. .

As shown in FIG. 6, a plurality of, for example, four wall-shaped blades 27 extending in the axial direction and located in the crushing chamber 18 are integrally formed on the peripheral surface on the other end side of the rotary shaft 5. The rotating body 28 is provided in such a manner that the rotating body 28 is formed. Further, a flexible cleaning member 29, such as rubber or cloth, whose leading edge is in sliding contact with the inner surface of the main body case 2 and the inner surface of the screen 21, which is the inner surface of the crushing chamber 18, is formed on the leading edge of the blade 27 in a strip shape. It is provided integrally. The screen 21 that defines the crushing chamber 18 in a substantially cylindrical shape is curved in an arc shape along the rotation trajectory of the tip of the blade 27 of the rotating body 28.

Further, in the upper part on the other end side of the main body case 2, a dome-shaped bag-breaking cover portion 32 is provided, which provides a bag-breaking space 31 between the main body case 2 and the rotation path of the rotating body 28. On the inner surface of the bag-breaking cover portion 32, a vinyl as a cutting blade for breaking a bag such as cutting or cutting relatively light impurities into a wall shape along the rotation direction of the rotating body 28. A plurality of cutters 33 are provided in parallel.

In addition, at the upper end of the other end of the main body case 2, a contaminant discharge port 35 which is located at the bag breaking cover part 32 and communicates with the crushing chamber 18.
Are formed. One end of a substantially rectangular cylindrical discharge duct 36 is connected to the impurity discharge port 35. One end of the discharge duct 36 is connected so as to be led out from the contaminant discharge port 35 substantially along the tangential direction of the rotation locus of the rotating body 28.

The bag-breaking space 31 is provided such that the edge of the rotating body 28 on the rotation direction side is inclined so that the gap between the rotating body 28 and the rotation locus gradually increases. Then, the vinyl cutter 33 is formed so that the edge on the side where the contaminant discharge port 35 opens is continuous with the bag breaking cover portion 32 and is continuous with the bag breaking chamber 18 so that the height dimension is gradually reduced, The opposite side facing the contaminant discharge port 35 rises from the bag-breaking space and the end edge is the contaminant discharge port.
It is formed to face 35.

On the other hand, the support base 2 is provided with a motor 38 for transportation and a motor for crushing as driving means (not shown). An output shaft (not shown) of the electric motor 38 for conveyance has a drive transmission member such as an endless belt stretched over the rotary pulley 16 of the carry-in rotator 13. An output shaft (not shown) of the crushing motor has a drive transmission member such as an endless belt stretched over the pulley 6 of the rotating shaft 5 of the rotating body 28. The transport motor 38, the crushing motor, and the transport motor 24 of the transport device 25 are connected to a control panel as control means (not shown). The control panel performs reverse drive control of the crushing motor so that the rotating body 28 can rotate forward and reverse.

Next, the operation of the above embodiment for crushing and separating garbage will be described.

First, the control motor (not shown) drives and controls the transport motor 38, the crushing motor, and the transport motor 24 of the transport device 25. The drive control by this control panel is performed by rotating the transport motor 38 forward so that the loading rotator 13 rotates in the direction of loading the garbage located in the loading chamber 8 into the crushing chamber 18, and the crushing motor 38. Is a reverse rotation opposite to that of the loading rotator 13, that is, a reverse rotation in which the blade 27 of the rotator 28 rotates toward the opening direction of the impurity discharge port 35 of the discharge duct 36, and the transfer motor 24 of the transfer device 25 controls the discharge sheet 22. Forward in the direction to carry out the garbage from.

With the transport motor 38 rotating forward, the crushing motor rotating in reverse, and the transport motor 24 rotating in the transport device 25, the relatively light contaminants such as styrofoam and resin film are fed through the input port 10. Put garbage mixed with garbage. The thrown-in garbage falls into the loading chamber 8 of the main body case 2 through the loading chute 11, and is conveyed to the crushing chamber 18 by the rotating loading rotator 13.

The garbage conveyed into the crushing chamber 18 is crushed by the reversing electric motor by being brought into contact with the blade 27 of the rotating body 28 rotating at a relatively high speed, and is crushed and colliding with the inner surface of the main body case 2. And further crushed. In addition, foreign matters such as styrene foam and resin film are crushed, cut or cut at the protruding tip edge of the vinyl cutter 33 when they are blown off by the blade 27 of the rotating body 28, and are finely broken. Since the impurities are relatively light, they are not broken as finely as garbage.

The garbage is crushed and crushed to some extent by the reversal of the rotating body 28, so that the garbage falls from the crushing chamber 18 through the insertion hole 20 of the screen 21 to the transporting device 25 through the discharge duct 36. The finely crushed garbage is discharged.

Here, since the rotating body 28 rotates or reverses the blade 27 in the opening direction of the foreign matter discharge port 35 of the discharge duct 36, the foreign matter and the Garbage is also blown toward the opening direction of the foreign matter discharge port 35, so that foreign substances and food garbage are discharged from the foreign matter discharge port 35.
Through the crushing chamber 18 to the discharge duct 36. From this, the garbage that has been crushed and shredded is placed in the crushing room.
Impurities that are discharged from the insertion hole 20 of the screen 21 that opens to the opening 18 and that are relatively light and do not become as fine as garbage remain in the crushing chamber 18 without passing through the insertion hole 20.

The front edge of the cleaning member 29 is
The sliding contact with the inner peripheral surface prevents the foreign substances and garbage from closing the insertion hole 20, and the garbage is efficiently discharged to the transfer device through the discharge chute. That is, garbage is
The solid content is about 20%, and a part of the garbage becomes slurry by crushing, and the viscosity increases, and the blade 27 of the rotating body 28
Is stuck to a gap serving as a clearance for rotation of the rotating body 28 between the tip of the screen 21 and the inner surface of the screen 21. For this reason, the cleaning member 29 wipes the inner surface of the screen 21 to remove the slurry, prevents the insertion hole 20 from being closed, and allows the crushed garbage to be efficiently discharged.

Thereafter, after the contaminants are left in the crushing chamber 18 and the garbage that has been crushed to a certain extent is discharged from the crushing chamber 18, the reversing crushing motor is reversed to perform normal rotation. Due to the forward rotation of this motor, the rotating body 28 and the blade 27
It is in the normal rotation state in which it rotates toward the impurity discharge port 35 of 36.
Then, due to the normal rotation of the rotating body 28, the contaminants remaining in the crushing chamber 18 are discharged from the contaminant discharge port 35 through the discharge duct 36.

As described above, the discharge duct for discharging contaminants
After rotating the rotating body 28 in the direction in which the foreign matter discharge port 35 of the opening 36 is opened, the rotating body 28 is sufficiently crushed and crushed, and only the garbage is sufficiently discharged through the insertion hole of the screen. The remaining impurities that have been turned over are discharged from the discharge port 35 through the discharge duct 36, so that garbage and contaminants can be highly crushed and separated, and the garbage collection efficiency can be improved, and For example, methane fermentation treatment, which is a biological treatment of garbage, can be performed efficiently, and methane gas, which can be energy efficiently, can be generated. Furthermore, since little garbage is mixed into the collected impurities, the amount of the collected impurities is reduced, and post-treatment such as solid fuel conversion, incineration, and recycling to various synthetic resin products can be easily performed.

In addition, since the rotating body 28 is rotated by the rotating shaft 5 extending substantially in the horizontal direction, the garbage is not only blown off by the collision with the blade 27 but also garbage falls down by the action of gravity. Since relatively light impurities are blown off by the wind generated by the rotation of the rotating body, the crushed garbage and the crushed impurities are easily separated from each other. And can be separated and recovered.

Further, in order to efficiently break the bag when the rotating body 28 rotates in the reverse direction, the edge of the vinyl cutter 33 is formed on the crushing chamber 18.
When the rotating body 28 rotates forward, the leading edge protruding so as to prevent the foreign matter from being caught is formed so as to be continuous with the bag breaking chamber 18, so that the bag can be efficiently broken, and no clogging or the like occurs. Contaminants can be discharged smoothly.

In the above-described embodiment, the foreign substance discharge port 35 of the discharge duct 36 is formed so as to open only at the upper end of the other end of the main body case 2, that is, only at a part of the crushing chamber 18.
For example, as shown in FIG. 7, an opening may be formed in a longitudinal shape over substantially the entire area along the axial direction of the crushing chamber 18.

According to the structure shown in FIG. 7, foreign substances remaining in the crushing chamber 18 by rotating the rotating body 28 in the normal direction can be discharged in a short time, and the processing efficiency of garbage mixed with the foreign substances can be improved. .

In addition, it has been described that the rotating body 28 is reversed, sufficiently crushed and crushed, and only the garbage is discharged through the screen, then reversed and rotated forward to discharge the remaining impurities.
For example, a lid that opens and closes the impurity discharge port 35 may be provided.

That is, when the rotator 28 is rotated by the blade 27 rotating in the normal direction in which the blade 27 rotates toward the contaminant discharge port 35, and when the garbage containing the contaminants is introduced, the contaminant discharge port is closed by the lid.
35 is closed, and in this state, crushing and crushing are performed by the rotating body 28 that rotates forward, and after the contaminants remain in the crushing chamber 18 and the garbage that has been crushed to some extent is discharged from the crushing chamber 18, The foreign matter discharge port 35 is opened by the lid while the rotating direction of the rotating body 28 remains as it is, and the remaining foreign matter is discharged from the discharge duct 36.

Similarly, in the configuration using the lid, garbage and contaminants can be highly crushed and separated and collected, the garbage collection efficiency can be improved, and the subsequent stage, for example, methane fermentation treatment can be performed efficiently, and the garbage can be collected. The garbage is hardly mixed into the foreign matter, the amount of the collected foreign matter is reduced, and post-processing such as solid fuel conversion, incineration, and recycling to various synthetic resin products can be easily performed.

The rotating body 28 is appropriately inverted. For example, the rotating body 28 is divided into two in the axial direction of the crushing chamber 18 and the rotating body 28 on the upstream side in the moving direction of the garbage adjacent to the loading chamber 8 is reversed.
The downstream rotating body 28 located at the impurity discharge port 35 may be rotated forward.

According to this configuration, the garbage can be continuously supplied, and the crushing and bag breaking of the garbage can be efficiently performed.

Although the rotating body 28 is constituted by providing the rotating shaft 28 with the wall-shaped blade 27 extending along the axial direction, any structure that can be efficiently crushed may be used.

If the bag can be broken efficiently,
Any shape can be used.

Further, a cleaning member is attached to the blade 27 of the rotating body 28.
Although the cleaning member 29 is described, the cleaning member 29 may not be used.

[0052]

EXAMPLE An experiment was conducted in which garbage was crushed and separated using the apparatus of the above embodiment.

As the garbage to be crushed, 100 kg of potatoes, 100 kg of fish placed on a resin tray and packaged with a resin film, 100 kg of oranges,
Four types of garbage collected in garbage bags were used.

First, each of the garbage was crushed and separated when the rotating body 28 was rotated only forward as in the conventional case. Table 1 shows the results.

[0055]

[Table 1] From the results shown in Table 1, the crushed material that was crushed garbage discharged through the screen 21 was potato,
Both fish and mandarin orange were extremely low, and only about 68% of collected garbage was obtained.

Therefore, the contaminants discharged from the collected waste discharge duct 36 were crushed using a twin-screw crusher, and further crushed and separated by the garbage crushing and separating apparatus 1. Table 2 shows the results.

[0057]

[Table 2] From the results shown in Table 2, about 83% of the garbage could be recovered when combined with the first time. However, when crushing with a twin-screw crusher, there is a problem that the garbage bags are entangled because the garbage bags are relatively large and a load is applied to the twin-screw crusher. Further, in order to crush and separate the garbage at a high recovery rate, two crushing and separating treatments and one crushing by a twin-screw crusher, which is a total of three times, are required, so that the efficiency cannot be improved.

For this reason, the collected waste was first crushed by a twin-screw crusher, and then crushed and separated by the above-mentioned garbage crushing and separating apparatus. Table 3 shows the results.

[0059]

[Table 3] From the results shown in Table 3, the recovery rate of the crushed garbage was almost the same as the result shown in Table 1.

Next, similarly to the above embodiment, the rotating body 28
Was reversely crushed, and then forwardly separated. Table 4 shows the results.

[0061]

[Table 4] From the results shown in Table 4, the garbage could be collected very efficiently without migrating to the contaminant side.

[0062]

According to the garbage crushing and separating apparatus according to the first aspect, when the garbage is thrown in, the rotator is reversely rotated for a predetermined time to discharge the crushed garbage from the insertion hole of the screen. The rotating body is rotated forward and the contaminants remaining in the crushing chamber are discharged in the reverse rotation direction of the rotating body from the contaminant discharge port of the discharge duct that opens into the crushing chamber. The garbage is crushed and discharged, and the garbage can be easily crushed and separated from the contaminants with high efficiency, improving the recovery rate of the garbage and reducing the amount of the garbage mixed with the contaminants, thereby reducing the amount of the contaminants processed. It reduces the amount of impurities and facilitates the treatment of contaminants, so that garbage can be efficiently treated.

According to the garbage crushing and separating apparatus according to the second aspect, when garbage is introduced, the foreign matter discharge port of the discharge duct is closed by the lid for a predetermined time and crushed by the rotating rotating body. After discharging the garbage from the insertion hole of the screen, the foreign matter discharge port closed by the lid is opened, and the foreign matter remaining in the crushing chamber is discharged from the foreign matter discharge port of the discharge duct opened to the crushing chamber. Therefore, garbage is sufficiently crushed and discharged at the time of reverse rotation, garbage is easily crushed and separated from impurities, and the garbage collection rate can be improved,
The amount of garbage mixed into the foreign matter is reduced, the amount of the processed foreign matter is reduced, the processing of the foreign matter is facilitated, and the garbage can be efficiently crushed and separated.

According to the garbage crushing and separating apparatus according to the third aspect, in addition to the effect of the garbage crushing and separating apparatus according to the first or second aspect, the foreign matter discharge port of the discharge duct is provided along the axial direction of the crushing chamber. In order to make it open in a longitudinal shape, the opening area increases, and when discharging foreign matter from the foreign matter discharge port, the foreign matter can be smoothly and quickly discharged without blocking the foreign matter discharge port,
The efficiency of crushing and separating garbage can be improved.

According to the garbage crushing and separating apparatus according to the fourth aspect, in addition to the effect of the garbage crushing and separating apparatus according to any one of the first to third aspects, the leading edge comes into contact with the screen by rotating the rotating body. Since the cleaning member is provided, it is possible to prevent the insertion hole of the screen from being clogged with garbage and foreign substances, to discharge crushed garbage efficiently from the screen, and to improve the efficiency of crushing and separating garbage.

According to a fifth aspect of the present invention, in addition to the effect of the garbage crushing / separating apparatus of any one of the first to fourth aspects, the garbage crushing / separating apparatus is provided so that the central axis extends substantially in the horizontal direction. On the peripheral surface of the main body case, the discharge port is opened downward and the contaminant discharge port of the discharge duct is opened upward, so that the crushed garbage can be opened by the action of gravity. And the relatively light impurities are blown off by the wind generated by the rotation of the rotating body and discharged, so that the crushed garbage and the impurities can be easily and highly easily separated with a simple configuration.

According to the garbage disposal apparatus of the sixth aspect,
6. The garbage according to any one of claims 1 to 5, wherein the garbage is easily crushed and separated from the contaminants with high efficiency to improve the recovery rate, and reduce the amount of contaminants to be treated to efficiently process the garbage. The garbage that has been crushed and separated by the garbage crushing and sorting apparatus is processed by methane fermentation by the methane fermentation treatment means, so that the crushed garbage can be highly methane fermented without the influence of foreign substances. Therefore, the amount of garbage generated for the garbage before the crushing and separation of the methane gas generated by the process increases, and the processing efficiency of the garbage can be improved.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing an embodiment of a garbage crushing and sorting apparatus of the present invention.

FIG. 2 is a sectional side view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is a side view of the same.

FIG. 5 is a plan view of the same.

FIG. 6 is a partially cutaway perspective view showing a blade of the rotating body.

FIG. 7 is a side sectional view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Garbage crushing and sorting apparatus 3 Main body case 5 Rotating shaft 10 Input port 18 Crushing chamber 19 Discharge port 20 Insertion hole 21 Screen 27 Blade 28 Rotating body 29 Cleaning member 33 Vinyl cutter as cutting blade 35 Foreign matter discharge port 36 Discharge duct

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hisarin Torii 2-9-1, Noribori, Nishi-ku, Osaka, Osaka Inside Ataka Industry Co., Ltd. (72) Inventor Hidemasa Kobayashi 2-9-1, Noribori, Nishi-ku, Osaka, Osaka No. Ataka Kogyo Co., Ltd. F term (reference) 4D004 AA03 AA04 AA46 AC05 CA04 CA08 CA15 CA18 CB05 CB09 CB11 CB23 CB28 CB42 CB43 CB45 DA02 DA13 4D065 CA17 CB01 DD06 DD19 DD26 EA08 EB17 ED03 ED25

Claims (6)

[Claims] 1. A main body having a substantially cylindrical crushing chamber having an opening on one end side into which a garbage mixed with impurities is introduced, and an opening on a peripheral surface thereof for discharging the garbage. A case, a rotatable shaft rotatably disposed in a crushing chamber of the main body case, having a rotation shaft on a central axis, and a blade provided on a peripheral surface of the rotation shaft in a wall shape along the axial direction. A rotator, a driving unit that rotates the rotator so that the garbage can be reversed and collides the thrown garbage with a blade of the rotator that rotates, and rotates the blade of the rotator on the main body case. A screen provided with a plurality of insertion holes that are provided along the trajectory to close the discharge port and through which the crushed garbage can pass; provided on the inner peripheral surface of the crushing chamber of the main body case, the tip edge is Wall shape along the rotation trajectory of the rotating body blade A cutting blade for cutting the foreign matter; and a foreign matter discharge port provided at the main body case at one end and opening to the crushing chamber in a reverse rotation direction of the rotating body. A garbage crushing / separation system, comprising: a discharge duct for discharging a material; and a control unit for controlling the driving of the driving unit to reversely rotate the rotating body for a predetermined time when the garbage is input. apparatus. 2. A main body case having a substantially cylindrical crushing chamber having an opening at one end side into which a garbage mixed with contaminants is introduced, and an opening at a peripheral surface having an outlet through which the garbage is discharged. A rotating body rotatably disposed in a crushing chamber of the main body case, the rotating body having a rotating shaft having a rotating shaft on a central axis, and a blade provided on an outer circumferential surface of the rotating shaft in a wall shape along an axial direction; Driving means for rotating the rotating body in one direction and crushing the thrown garbage by colliding with the blade of the rotating body which rotates, and the main body case along the rotation trajectory of the blade of the rotating body. A screen having a plurality of insertion holes provided to close the discharge port and through which the crushed garbage can pass; and a blade provided on the inner peripheral surface of the crushing chamber of the main body case, the leading edge of which is a blade of the rotating body. The wall-like shape along the rotation trajectory A cutting blade provided in the main body case and having a discharge port at one end that opens toward the crushing chamber, and a discharge duct that discharges the contamination by rotation of the rotating body. A lid for closing the foreign substance discharge port so as to be openable and closable; and a control means for closing the foreign substance discharge port of the discharge duct with the lid for a predetermined time when the garbage is charged. Garbage crushing and sorting equipment. 3. The garbage crushing and sorting apparatus according to claim 1, wherein the foreign matter discharge port of the discharge duct is opened longitudinally along the axial direction of the crushing chamber. 4. The rotating body includes a cleaning member whose front edge contacts a screen by rotation.
4. The garbage crushing and sorting apparatus according to any one of items 1 to 3. 5. The main body case is provided with a central axis extending substantially in a horizontal direction, an outlet is opened downward on a peripheral surface of the main body case, and the discharge duct is provided with a contaminant discharge port. The garbage crushing and sorting apparatus according to any one of claims 1 to 4, wherein the garbage crushing and separating apparatus is opened at an upper part of a peripheral surface of the main body case. 6. A garbage crushing and separating apparatus according to any one of claims 1 to 5, and methane fermentation treatment means for decomposing garbage crushed by the garbage crushing and separating apparatus by methane fermentation. A garbage disposal device characterized by being provided.