JP2000102739A - Scraping and breaking-up device of firmly compacted lumpy material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device by which even firmly compacted lumpy material can be effectively broken up and effective discharge work of the broken-up pieces can be done and which excels in uniformity of the quantity of the pieces per unit gas volume on discharge. SOLUTION: A pair of rotors 5 having the same height for scraping off the bottom surface of lumpy material 2 inserted into a casing 1 are equipped for this device. Below the rotors 5, an agitating rotor 8 for agitating the scraped-off pieces and a feeding rotor 12 for feeding the pieces agitated by the agitating rotor 8 are arranged. And on a casing sidewall 14 facing the feeding rotor 12, a takeoff port 17 is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to a scraping apparatus for scraping and breaking a piece of waste paper or recycled paper compacted in a lump.

[0002]

2. Description of the Related Art As a heat insulating material for houses and the like, a large number of pieces of waste paper or recycled paper are laid all over the ceiling or the like, or adhered to a wall surface to a predetermined thickness using an adhesive.

[0003] Such a piece of waste paper or recycled paper is compacted in a lump at a factory in advance, and this is scraped off at the site with a special device, and is sucked by a blower, and is sucked from the end of a hose with a blower. Is to be ejected toward the location.

FIGS. 4 and 5 show a conventional example of such a scraping device. In the drawing, (31) is a casing provided with a charging port (37) for charging a lump (38) on the upper surface, and the lower half portion of the casing (31) is formed in a quadrangular pyramid shape tapering downward. In this quadrangular pyramid portion, a pair of upper and lower rotors (33) (34) having a number of rod-shaped blades (32)
Are arranged such that their rotation axes (36) are parallel. A rotor is provided on the lower side wall of the casing (31).
(33) Take out port in the direction perpendicular to the rotation axis (36) of (34)
(35) is provided.

[0005] A block (38) compacted to form a rectangular parallelepiped of a predetermined size is inserted into the casing (31) from the charging port (37) and installed therein. )
By rotating (34), first the upper rotor (33)
Scrapes the bottom surface of the lump (38), and the scraped fragments are sent downward with the rotation of the same upper rotor (33). The debris that has moved downward is sent out in the direction of the outlet (35) while being stirred and released by the lower rotor (34), and the blower (39) connected to the outlet (35).
Is sent to the hose (40) by the suction force of the hose (40).
Released from the tip.

[0006]

SUMMARY OF THE INVENTION
(38) is scraped off by the blades of the upper rotor (33), so that the bottom surface is scraped off in a semicircular shape and descends sequentially, but with one rotor (33) rotating in one direction, If the mass (38) is firmly compacted, there is a disadvantage that the scraping is not performed well because it is only scraped. For this reason, only relatively soft lumps can be handled, the transportation efficiency is lower than that of strongly compacted ones, and moreover, there is a drawback that a large amount of dust is generated during scraping.

[0007] Further, during scraping, the lump (38) receives a force that is pushed in the rotation direction of the upper rotor (33).
This force is a force that presses one of the left and right sides of the lump (38) against the inner surface of the casing (31),
Coupled with the fact that the lower part of (31) is tapered in the shape of a quadrangular pyramid, the lump (38) does not descend well while sliding on the inner surface of the casing (31), and eventually the worker removes a large amount of dust. It was necessary to pierce with a stick from above while winding up, and from this point, there was a disadvantage that the scraping efficiency was poor. In addition, at this time, a large amount of dust soars, so that there is a problem that the influence on the surrounding environment is great and the health of the worker itself is adversely affected.

[0008] In addition, as described above, the lower rotor (34) unravels the scraped pieces while stirring them and removes the pieces.
Although it has a function to send out to (35), since the unraveling action is not performed sufficiently, the amount of debris per unit air volume sent out from the hose (40) is not constant, especially when mixed with adhesive In the case of sending out, there is a defect that the adhesion is partially poor due to large variation.

Further, in actual work, one worker moves the end of the hose (40) to a target location while another worker successively replenishes lump, but only one location at a time. There was a drawback that the work efficiency was not always good because it could not be released.

[0010] The present invention solves the above-mentioned conventional drawbacks, and enables efficient scraping even of a strongly compacted lump, and efficient removal of the scraped fragments. It is an object of the present invention to provide a device capable of performing a discharging operation and having excellent uniformity in the amount of fragments per unit air volume at the time of discharging.

[0011]

According to the present invention, in order to solve the above-mentioned problem, a pair of left and right scrapes of the bottom surface of the above-mentioned lump is provided in a casing having an inlet for introducing the lump into the upper surface. The scraping rotors are arranged so that their rotational directions are opposite to each other and the direction in which the scraped fragments are sent downward from between the rotors, and further below that, the scraping rotor is sent out by the scraping rotor. A stirring rotor for stirring the broken fragments; and a delivery rotor for delivering the fragments stirred by the stirring rotor toward an outlet of the casing.

In this case, according to the second aspect of the present invention, the stirring rotor and the delivery rotor rotate in the same direction, and in the third aspect of the present invention, the outlet is formed at the lowermost end of the casing side wall. The delivery rotor is provided in the vicinity of the portion or the lower end, and the rotation rotor is provided so that its rotating peripheral surface is close to the take-out port, and which rotates upward on the side facing the take-out port.

[0013] On the other hand, in the invention according to claim 4, in the above, there is provided a plurality of outlets provided in the axial direction of the delivery rotor. In the invention according to claim 5, the bottom wall surface in the casing is provided with the outlet wall. It has a curved surface along the respective rotating peripheral surfaces of the delivery rotor and the stirring rotor.

According to the invention of claim 6 of the present application, the lower end portion of the casing side wall is bulged outward, the outlet is provided in the bulged side wall portion, and the second delivery blade is provided in the bulged space. In this case, according to the invention of claim 7, the inner wall surface of the bulging space is formed in a curved shape along the rotation peripheral surface of the second delivery blade.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 and 2 showing an embodiment of the present invention, FIG. 1 (1) shows a casing having a rectangular cross section with a horizontal cross section having a substantially straight side wall surface from the upper end to the lower end. The upper surface is used as an inlet (3) for the lump (2). A pair of left and right scraping rotors (5) and (5) are mounted at the same height between the pair of side wall surfaces (4) and (4) facing each other at a substantially middle position in the vertical direction. These rotors (5) and (5) have both ends on the side wall surface.
(4) A shaft (6) rotatably supported on (4) and the shaft (6)
And a number of rod-shaped blades (7) protruding from the outer peripheral surface of the disk. These four bar-shaped blades (7) (7) are provided in the circumferential direction at a 90-degree interval from each other when viewed from the end face side of the shaft (6), and are arranged in the longitudinal direction of the shaft (6). In addition, four or five are arranged. Although not shown, bar-shaped blades
(7) is, for example, a male screw type having a spiral groove formed on the outer peripheral surface.

Below the scraping rotor (5), a vertical line L passing through the middle between the scraping rotors (5) and (5) is located at a position closer to one of the rotors (5). A stirring rotor (8) having a plurality of rod-shaped blades (10) (10)... On the outer periphery of the shaft (9) and having the same structure is mounted in parallel with the stirring rotors (5) and (5).

Similarly, below the scraping rotor (5), on the opposite side to the stirring rotor (8), with the perpendicular L passing through the middle between the scraping rotors (5) and (5) interposed therebetween. And at a position slightly below the stirring rotor (8), a delivery rotor (12) also provided with a number of rod-shaped blades (11) (11). 5) Installed in parallel with (8).

The inner bottom surface of the casing (11) is a stirring rotor.
The portion corresponding to (8) is larger than the radius of rotation of the stirring rotor (8), that is, the length from the center of the shaft (9) to the tip of the rod-shaped blade (10), and the center immediately above the shaft (9). A curved bottom surface (15) having a radius of curvature r-1 centered on O, and a portion corresponding to the delivery rotor (12) is the delivery rotor (12).
The curved bottom surface (16) has a radius of curvature r-2 centered on the axis of (12) and slightly larger than the rotation radius of the rotor (12).

On the casing side wall surface (14) facing the outer peripheral surface of the delivery rotor (12), the shaft of the delivery rotor (12) is provided.
(13), and at a position slightly higher than the lowest part of the curved bottom surface (16) corresponding to the rotor (12), a pair of outlets (17) and (17) It is provided at intervals in the direction of 13). These outlets (17) (17)
A pipe-shaped connector (18) for connecting a suction hose of a blower (not shown) is provided on the outside of the housing.

In the above, the turning radius of both scraping rotors (5) is the same, and if their radius is 180 mm,
The rotation radius of the stirring rotor 8 is set to 200 mm, which is larger than that, and the rotation radius of the delivery rotor 12 is set to a minimum of 90 mm.

Each of the rotors (5), (8) and (12) is driven to rotate by a motor (not shown). The rotation directions of the two scraping rotors (5) and (5) are opposite to each other, and The facing side, that is, the center side of both rotors (5), (5) is in the direction of the arrow in the figure facing downward. Stirring rotor (8) and delivery rotor (12)
Both rotate in the same direction, in the direction in which the bottom side of the casing (1) moves toward the outlet (17).

When the solid compacted into a rectangular parallelepiped is thrown in from the inlet (3) of the casing (1), the bottom surface thereof comes into contact with the upper scraping rotors (5) and (5). The scraped pieces are scraped off by the rotation of the picking rotors (5), and the scraped pieces are fed downward through the space between the rotors (5) (5). Then, the debris that has moved downward is agitated by the stirring rotor (8).
While rotating more than half a clockwise rotation in FIG. 2 while being agitated and separated more finely, after passing the boundary of the curved bottom surfaces (15) and (16), light fragments having a relatively small weight are forwardly moved, that is, It jumps out in the direction of the sending-out rotor (12), and is further deflected by the sending-out rotor (12) near the take-out opening (17), bypassing the curved surface (16) side, and floats, so that the take-out opening ( It is sucked out by the suction power of the blower connected to 12). On the other hand, the heavier fragments move upward by inertia and the majority of them are again stirred by the stirring rotor (5).

The outlets (17) and (17) are connected to different blowers and hoses, respectively, and are discharged in two directions at the same time. Can be discharged twice, and in any case, an efficient discharge operation can be performed. The number of the outlets (17) can be further increased to three or more.

The casing (1) is supported by a suitable frame, but is omitted here.

FIG. 3 shows the side wall surface (13) of the outlet (17).
Is bulged outward in a semicircular cross section, and a second delivery rotor (19) is provided in addition to the delivery rotor (12) in the space of the bulged portion (20). Since there is no lump directly above the second delivery rotor (19), there is no possibility that unstirred pieces fall and are delivered,
A particularly stable amount of debris per unit air volume can be realized. This is particularly effective when the adhesive is mixed and released. In this case, the delivery rotor is the second rotor so arranged on the bulge (20).
(19) only, it is conceivable to provide the stirring rotor (8) by moving it relatively from the position in FIG. 3 to the take-out port (17). Other configurations are the same as those in FIGS.

[0026]

As described above, according to the present invention, since the bottom surface of a lump is scraped off by the pair of scraping rotors on the upper side, it is possible to efficiently scrape even a lumped up lump. Therefore, the lump can be compacted at a high density, so that the transportation efficiency can be improved.

Further, the scraped-off fragments are stirred by the stirring rotor and then supplied to the outlet by the delivery rotor, so that the efficient operation of releasing the fragments with stable density can be performed.

In the invention of claim 4 of the present application, since a plurality of outlets are provided in the axial direction of the rotor, the outlets can be simultaneously discharged in a plurality of directions by a plurality of hoses, or one of the plurality of outlets can be discharged simultaneously. Large quantities can be discharged to one place integrated in one hose, and efficient work can be performed.

Further, since the bottom surface of the casing is curved so as to correspond to the rotating peripheral surfaces of the stirring rotor and the delivery rotor, the debris is smoothly moved from the stirring rotor to the delivery rotor, and the debris is removed from the casing. Can be efficiently sent out to the outlet without stagnation.

In the inventions of claims 6 and 7 of this application, since the take-out opening portion of the casing is bulged outward and the delivery rotor is arranged in this bulged portion, almost no delivery rotor is provided. Only the material stirred and sent out by the stirring rotor is supplied, and a stable discharge with a small change in the fragment density per air volume can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a device of the present invention showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the same casing section.

FIG. 3 is a longitudinal sectional view of a device of the present invention showing another embodiment of the present invention.

FIG. 4 is a perspective view of a conventional scraping device.

FIG. 5 is a cross-sectional view of the same in the casing portion.

[Explanation of symbols]

 (1) Casing (2) Lump (3) Input port (5) Scraper rotor (6) Shaft (8) Stirring rotor (12) Discharge rotor (13) Side wall surface (15) Curved bottom surface (16) Curved bottom surface ( 17) Removal port (19) Second delivery rotor (20) Swell

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D065 AA04 AA24 BB04 BB11 EA05 EB12 ED15 ED20 4G078 AA08 AA10 AB20 BA01 BA09 CA01 CA10 CA15 DA16 DB03 EA08 EA20

Claims (7)

[Claims] 1. A pair of left and right scraping rotors for scraping a bottom surface of a lump in a casing having an input port for charging the lump on an upper surface thereof, the rotation directions of which are opposite to each other, and The taken pieces are arranged so as to be directed downward from between the rotors, and further below, a stirring rotor for stirring the fragments sent by the scraping rotor, and the fragments stirred by the stirring rotor. And a feed-out rotor for feeding the powder toward the outlet of the casing. 2. The apparatus according to claim 1, wherein the stirring rotor and the delivery rotor rotate in the same direction. 3. The take-out port is provided at the lowermost end or near the lower end of the casing side wall, and the feed-out rotor has a rotating peripheral surface close to the take-out port.
3. The device for scraping compacted mass according to claim 2, wherein the device is arranged to rotate upward on the side facing the outlet. 4. The apparatus for scraping a compacted mass according to claim 1, wherein a plurality of outlets are provided in the axial direction of the delivery rotor. 5. The compacted mass according to claim 1, wherein a bottom wall surface in the casing has a curved surface substantially along a rotation peripheral surface of each of the delivery rotor and the stirring rotor. Equipment for scraping things. 6. A casing according to claim 1, wherein a lower end portion of the casing side wall is bulged outward, an outlet is provided in the bulged side wall portion, and a second feed rotor is provided in the bulged space. The device for scraping compacted lump as described in any one of the above. 7. The mass scraping device according to claim 6, wherein the inner wall surface of the bulging space is curved so as to follow the rotating peripheral surface of the second delivery rotor.