JP2607531Y2 - Vibrating sieve machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrating sieving machine, and more particularly to sieving of a material mainly containing ash after incineration and containing 15% to 20% of moisture (so-called compost) or a material having moisture and deliquescent properties. It relates to a vibrating sieve machine most suitable for.

[0002]

2. Description of the Related Art Recently, ash produced by incineration of various kinds of refuse has a greasy feeling containing 15% to 20% of water due to being sprayed with water after incineration.
It also contains unburned refuse, for example, metal scraps, but in order to separate such incinerated materials, for example, metal pieces and ash as non-burnable refuse, the present applicant has improved the conventional apparatus. As a device to perform, "a frame supported by an anti-vibration spring, a vibrator for vibrating the frame, a sieve frame disposed in the frame, and one end respectively stopped on both side walls of the frame. Driving spring, the other end of which is fixed to the sieve frame, and a plurality of belt-shaped members, both ends of which are fixed to the sieve frame, and which are disposed with a gap in the transfer direction of the sieve material, A vibrating sieve machine comprising the sieve frame and an impact body fixed at a predetermined interval on at least one of both side walls of the frame body has been proposed (Japanese Utility Model Application No. 5-38462).

[0003] However, even with the vibrating sieve described above, the separation of so-called compost mainly composed of ash after incineration and nonflammable, for example, easily catchable metal pieces is not sufficient. Alternatively, the metal pieces may be clogged.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems. For example, the compost is more reliably sifted from noncombustible and easily catchable metal pieces, resulting in clogging of noncombustibles. It is an object to provide a vibrating sieve having no vibration.

[0005]

The object of the present invention is to provide a first frame to which a vibration source is attached, a second frame below and parallel to the first frame. and the connecting plates to each coupling the side wall portions of the both sides walls of the first frame a second frame member, one end to the side wall <br/> in each of both side walls of the first frame mounting, each rubber plate device has a plate rubber to attached the other end to the connecting plate, in each of both side walls of the second frame, whose ends <br/> attached via an elastic member And a plurality of bands arranged at predetermined intervals from each other
And steel, the second frame body at each of both side walls of the fixed, <br/> pad attached via an attachment member to the lower end of the piston rod or the second frame side wall portion of the And an end portion of the steel strip projecting outwardly from the end of the steel strip. Each of the vibration sources is determined by the total weight of the first and second frames and the total spring constant of the pair of plate rubbers. A vibration force having a frequency close to the resonance frequency is generated, and both sides of the second frame are
Or the piston rod of the cylinder device in each of the wall portions in the lowered position the pad comes into contact with an end portion of the steel strip, adjacent, vibration sieve machine, characterized in that sufficiently separated from them in the raised position Is achieved by

[0006]

When the vibration source is driven, the first frame and the second frame resonate and vibrate, and the second frame vibrates in the shearing direction of the rubber sheet. Thereby, each of the both side walls of the second frame body
In the above, the plurality of steel strips whose ends are attached via elastic members perform secondary vibration, but when the piston rod of each cylinder device is at the lowered position, the lower end thereof The pad attached to the steel strip via the mounting member periodically collides with or presses against an end protruding outward from the side wall of the second strip of the steel strip, thereby incineration between the strips. object,
For example, even a bent metal piece can be reliably transferred as a sieve or on a sieve without clogging and can be sieved. When sieving incombustible waste that is less likely to be caught as a screen below or above a sieve, the piston rod of each cylinder device is set at the ascending position. Thus, strip without causing clogging simply performing secondary vibration can be sieved without the compost and incombustible problem.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vibrating sieve according to an embodiment of the present invention.

FIGS. 1 to 4 show a vibrating sieve according to a first embodiment of the present invention. FIGS. 1 and 3 show the whole of the vibrating sieve 1 and a first frame body. 2 is hung on the ceiling of the building by coil springs 3a, 3b, 4a, and 4b, which are a pair of front and rear and left and right. Below the first frame 2, a second frame 5 is connected in parallel with the first frame 2 by a configuration described later.

A vibration source 6 is attached to the first frame 2 between both side walls, and a leaf spring device 7 as a left and right pair is mounted on both side walls of the first frame 2. Installed at intervals. A plurality of cylinder devices 8 according to the present invention are mounted on both side walls of the second frame 5 at equal intervals.

As shown in FIG. 3, a compost supply port 9 is provided at the left end of the second frame 5 and a sieve waste discharge port 10 is provided at the right end thereof. As shown in FIG. 1, a sieve material discharge port 11 is formed at the right end of the bottom wall of the second frame 5. In the second frame 5, a louver-type sieve surface 12 including a plurality of strip-shaped steel strips 30 each having a U-shaped cross section is provided. Also, the first frame 2 and the second frame 2
The frame 5 is connected to the frame 5 via a plate rubber device 7 by a connecting plate 13 whose shape is clearly shown in FIG.

Next, the details of the vibrator 6 will be described.
This is a vibration motor M ₁ , M ₁ comprising a pair of induction motors.
₂ is symmetrically mounted on a mounting plate R interposed therebetween as shown in FIG. As is well known, substantially semi-circular unbalanced weights 80a, 80a and 80
b and 80b are fixed. Also, the mounting plate R is rotatably mounted on both side walls of the first frame 2 without being explicitly stated.

Next, details of the rubber plate device 7 will be described with reference to FIGS. Each plate rubber device 7 has the same configuration. The mounting plate 16 whose shape is clearly shown in FIG. 2 has elongated holes 16a and 16b formed at both ends, and the bolts 17 and 16 are passed through the bolt insertion holes of the first frame 2.
18 is fixed to the first frame 2 by inserting a nut and screwing a nut. The mounting plate 16 is further formed with a substantially rectangular notch 16c at the center thereof, and plate rubber mounting plates 21 and 22 are fixedly disposed at the opposed long side edges, respectively, and are respectively in contact with these. As shown in FIG. 2, bolts 25a, 25b, and 25 are aligned with plate rubber iron plates 24a, 24b fixed by vulcanization bonding to one surface of plate rubbers 23a, 23b.
The plate rubbers 23a and 23b are rectangular in shape and are fixed to the mounting block 19 having a large plate thickness in common with the other long side edges which are opposed to each other. This mounting block 19 is bonded by sulfuric acid.
The first frame 2 and the second frame 5 are connected via the plate rubber device 7 by bolting the bolt 14 through the center portion of the first frame 2 and screwing the nut 20 through the connection plate 13. You. The connecting plate 13 is attached to both inner side walls of the first frame 2 and the second frame 5 as described above, and these are connected by a connecting pipe 26 and reinforced.

Next, the louver type sieve surface 12 provided in the second frame 5 will be described. This is because, as shown in FIG. 2, a large number of band-shaped cords 30 are arranged at equal intervals with a gap S as shown in FIG. 2, and as shown in FIG. It is connected to the second frame 5 by a member 31. That is, the rubber members 31 are attached at both ends by bolts 32 and 33, respectively. The outer ends further protrude outward from both side walls of the second frame 5, and the It faces the piston rods 37a, 37b of the device 8.

Next, details of the cylinder device 8 will be described. The cylinder body 35 is fixed to both side walls of the second frame 5 with bolts 36, and a compressed air supply tube (not shown) is connected to the cylinder body 35. The slidable piston rods 37a and 37b are configured to take a position shown by a solid line and a position shown by a two-dot chain line. Also,
A connecting plate 38 for connecting the piston rods 37a and 37b is fixed to lower ends of the piston rods 37a and 37b, and an impact member 39 is further attached thereto. A band-shaped pad 40a is attached. In the state shown by the solid line, the steel strip 30 protruding outward at each of both side walls of the second frame 5 is formed.
Although a gap t between the end and the pad 40a is shown as abutting, a gap of about 2 mm is provided.
The size of the gap t can be adjusted by adjusting screws 50 screwed to both edges of the under-sieving passage forming member 41 integrated with the second frame 5 at the lower portion.

Further, according to the present embodiment, a thin urethane rubber is adhered to the upper surfaces of both ends of the steel strip 30.

The vibrating sieve according to the embodiment of the present invention is configured as described above. Next, the operation thereof will be described.

In FIG. 3 of the second frame 5, compost as a sieving material, that is, ash after incineration, mainly containing 15% to 2% water, is supplied to a supply port 9 formed at the left end.
Waste containing 0% is supplied. When the shaker 6 is driven,
A pair of non-parallel weights 80a, 80b rotate about their axes and, as is known, synchronously apply a linear vibration force in the direction in which these mounting members R extend. Since this is parallel to the extending direction of the plate rubbers 23a and 23b of the plate rubber device 7, this vibration force is efficiently transmitted to the second frame 5 in the same direction as a linear vibration force.

The non-parallel weights 80a and 80b have frequencies substantially equal to the resonance frequency determined by the total weight of the first frame 2 and the second frame 5 and the total spring constant of the plate rubbers 23a and 23b of the plate rubber device 7. The rotation causes the first frame 2 and the second frame 5 to resonate with each other and obtain a large amplitude with a small excitation force, as is well known. The louver sieve surface 1 serves as a vibration transfer force, and the second frame 5 may be inclined downward.
2 is transferred smoothly. Now, assuming that the cylinder device 8 has its piston rods 37a and 37b at the lowered position shown by the solid line in FIG. 4, the gap t between the lowermost pad 40a and both ends of the strip 30 is Since it is very small, about 2 mm, in addition to the above-described resonating vibration of the second frame 5, each steel strip 30 is only connected at both ends to the second frame 5 by the rubber members 31. A secondary vibration is performed in accordance with the magnitude of the elastic force, and during this vibration, both ends of the vibration collide with the pad 40a.
Each of the steel strips 32 is subjected to an impact force and is incombustible in the compost. As shown in FIG. 4, the conventional louver type sieve mesh may cause clogging and clogging. This compulsive force efficiently removes the compost from the gap, and the compost smoothly falls as a sieve under the sieve passage forming member 41. Thereafter, the material is transferred to the right side in FIG. 3 by resonance vibration, and the sieving material, that is, the non-combustible sieving material larger than the gap between the steel strips 30 is discharged outward from the discharge port 10, and , And ash m are discharged from the discharge port 11 to the outside.

5 and 6 show a vibrating sieve according to a second embodiment of the present invention. Parts corresponding to those of the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. Omitted.

That is, in this embodiment, the louver type sieve surface 12 is used.
The overall length of the steel strip 52 that constitutes the
a, 52a project greatly outward from the second frame 5, and both ends of an angle member 60 having an L-shaped cross section are fixed between the vertical rib members 51, 51. Both ends of a relatively rigid rubber member 53 are fixed with bolts 54 and 55 between the both ends 52 a and 52 a of 52. A skirt member 70 made of rubber having relatively small elastic force is attached between both inner side walls of the second frame 5 and near both ends of the strip 52. This is to prevent the sieve material on the steel strip 52 forming the louver sieve surface 12 from jumping out of the second frame 5 and cause the secondary vibration of the first embodiment. A rubber member 53 disposed outside the second frame 5 corresponds to a rubber member for causing the rubber member 53 to move. Also in this embodiment, the upper surface of the strip 52 and the pad 4
0a is provided with a gap t '.

The second embodiment of the present invention is constructed as described above. Next, this operation will be described.

The second frame 5 of the present embodiment also performs the resonance reciprocating motion, and has the cylinder device 8, the piston rods 37a,
As shown by the solid line in FIG.
Is formed, and an impact force is generated together with the secondary vibration, whereby the compost can be efficiently sieved on the louver sieve surface 12 formed by the steel strip 52, and the incombustible bent metal piece n ′. However, without falling from the gap S between the steel strips 52, it falls on the sieving forming member 41 as the sieving material without fail. In addition, it is discharged to the outside from the discharge port 10 without being caught and clogging. When the impact force is not required, the piston rods 37a and 37b of the cylinder device 8 are moved to the positions indicated by the alternate long and short dash line, and the band 52 is not subjected to the impact force due to the resonance. Perform vibration. Also in this case, sharper screening can be performed than in the case where the second frame 5 is integrated.

Although the embodiments of the present invention have been described above, the present invention is, of course, not limited to these, and various modifications can be made based on the technical concept of the present invention.

For example, in the above-described embodiment, a pair of induction motors M ₁ and M ₂ are used as a vibration source. Instead, a single vibration motor is used to generate a circular vibration force. Since the spring constant is the smallest in the shearing direction of the sheet rubber by the sheet rubber device 7, the second frame 5 can be linearly vibrated in this direction. Alternatively, a sufficiently large sieve efficiency can be provided even if it is not a linear vibration.

In the above-described embodiment, the plate rubber device 7 and the vibration source 6 are adjusted so that they can be rotated clockwise or counterclockwise from the positions shown in the drawing. Slots are formed at both ends of the mounting plate 16,
Although the rotation is possible within this range, a simpler structure can be achieved by fixing at the illustrated position.

[0026]

[Effects of the Invention] As described above, according to the vibrating sieving machine of the present invention, non-combustible materials such as bent nails in ash, such as compost, contain garbage that is easily caught in the mesh. Even in such a case, the steel strip can be reliably sieved by the impact force received by the steel strip, or the steel strip can be discharged to the outside from the discharge port without being clogged.

[Brief description of the drawings]

FIG. 1 is a partially broken side view of a vibrating sieve according to a first embodiment of the present invention.

FIG. 2 is a partially broken enlarged side view of the main part.

FIG. 3 is a plan view of the vibrating sieve.

FIG. 4 is an enlarged sectional view taken along line [4]-[4] in FIG.

FIG. 5 is a plan view of a vibrating sieve according to a second embodiment of the present invention.

FIG. 6 is an enlarged sectional view taken along line [6]-[6] in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vibration sieve machine 2 1st frame body 5 2nd frame body 6 Vibration source 7 Plate rubber device 8 Cylinder device 12 Louver sieve surface 30 Strip steel 40a Pad 50 Vibration sieve machine 52 Strip steel 53 Rubber member

Claims (1)

(57) [Scope of request for utility model registration] A first frame to which a vibration source is attached;
A second frame member which is arranged parallel thereto in the lower frame member, the both side walls of the both side walls of the first frame and the second frame body which
Each coupling plate for coupling, respectively, Noso both side walls of the first frame
In each of the plate rubber devices having a pair of plate rubbers, one end of which is attached to the side wall and the other end of which is attached to the connection plate , an elastic member is provided between each side wall of the second frame. its end is attached a plurality of strip arranged at a predetermined interval from each other, the two side walls of the second frame Te
The body is fixed at each end of the steel strip which projects from the side wall portion of the lower end portion to the pad attached via a mounting member <br/> the second frame of its piston rod outwardly
Consists of a respective cylinder device facing the part, the vibration source may generate excitation force frequency close to the resonant frequency determined by the first, the total weight and the total spring constant of the plate rubber to the second frame In each of the side walls of the second frame, the piston rod of the cylinder device is provided with the pad in the lowered position.
There or abuts the end of the steel strip, adjacent, vibration sieve machine, characterized in that sufficiently separated from them in the raised position.