JP2002219377A - Waste feeding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waste feeding device, which surely disintegrates waste that is supplied to an incinerator and then supplies the waste to the incinerator by a fixed amount, thereby stabilizing the operation of the incinerator. SOLUTION: Disintegrating devices 11 equipped with disintegrating blades 13 and agitating blades 16 are disposed opposite to each other, between adjacent waste feeding screws 7, 7 on the outlet 4 side of a casing 5 of a waste feeder 10. Thereby the waste discharged from the outlet 4 can be surely disintegrated by the disintegrating blades 13 installed in the disintegrating device 11. The disintegrated waste can be further segmented and dispersed circumferentially by the agitating blades 16 installed after the disintegrating blades 13, which realizes not only a fixed amount of waste supply to the incinerator but also stabilized operation of the incinerator.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste supply apparatus for supplying waste such as municipal waste and industrial waste to an incinerator or a gasification and melting furnace.

[0002]

2. Description of the Related Art Conventionally, as an apparatus for supplying waste to an incinerator, as shown in FIGS. 5 and 6, a twin screw type waste supply apparatus has been proposed.

The waste supply device 51 includes a pair of waste supply screws having screw blades 55A in a substantially cylindrical casing 54 having a supply port 52 at one end and a discharge port 53 at the other end. 55, 55 are arranged in a horizontal direction and parallel to each other, and a crushing device 56 is provided on the discharge port 53 side of the casing 54. The crushing device 56 includes a pair of crushing screws 57, 57 are disposed vertically and parallel to each other, and the waste supply and crushing screws 55, 55, 57, 57
Are rotationally driven by motors 59 and 60 in the direction indicated by arrow 58.

In the above-described configuration, the waste put into the casing 54 is rotated by a pair of waste supply screws 55 in the casing 54 and the screw blades 5 are rotated.
5A and 55A and compressed between the supply ports 5A and 55A.
It is conveyed from the second side to the discharge port 53 side. And the outlet 5
The waste discharged from the third side is taken in between the pair of crushing screws 57 constituting the crushing device 56, crushed, and dropped into the incinerator below to be supplied.

[0005]

However, according to the above-mentioned conventional construction, when the waste discharged from the discharge port 53 of the casing 54 is crushed by the crushing screw 57 of the crusher 56, Since there is a distance between the discharge port 53 and the intake portion 57A of the crushing screw 57, the waste is accumulated between the pair of waste supply screws 55 on the discharge port 53 side of the casing 54. In some cases, the material may be compacted, grow, and cannot be disintegrated by the disintegrating screw 57. Therefore, there is a problem that the waste supplied to the incinerator is not supplied by a fixed amount, and the operation of the incinerator becomes unstable.

Accordingly, the present invention has been made to solve these problems, and it is intended to stabilize the operation of the incinerator by surely crushing the waste to be supplied to the incinerator and supplying it to the incinerator in fixed amounts. It is an object of the present invention to provide a waste supply device that causes the waste to be supplied.

[0007]

According to a first aspect of the present invention, there is provided a waste supply apparatus having a plurality of casings each having an inlet at one end and an outlet at the other end. A crusher is disposed on the discharge port side of the casing in the waste feeder in which the waste supply screws are disposed horizontally and parallel to each other, and the crusher is disposed between the adjacent screws and disposed of. A crushing blade that is disposed to face the discharge direction of the material and crushes the waste discharged from the discharge port, and is provided behind the crushing blade and is crushed by the crushing blade. It is composed of a stirring blade for stirring the waste, and a rotary driving device for rotating the crushing blade and the stirring blade.

[0008] The waste supply apparatus according to claim 2 is
The crushing blade and the stirring blade of the crushing device in the waste supply device according to claim 1 are rotated at different speeds.

According to the waste supply apparatus of the first aspect, since the crushing device is disposed between adjacent screws on the discharge port side of the casing of the waste supply machine, the crusher is disposed at the discharge port. Can be reliably crushed by the crushing blade provided in the crushing device, and the crushed waste can be separated by the stirring blade provided behind the crushing blade. It can be further divided and dispersed around.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A waste supply apparatus according to the present invention is for supplying waste such as municipal solid waste and industrial waste to an incinerator.

Hereinafter, a waste supply apparatus according to a first embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the waste supply device 1 includes a municipal solid waste,
A hopper 2 into which waste such as industrial waste is charged, an input port 3 disposed below the hopper 2 and communicating with the hopper 2 at one end, and a discharge port 4 at the other end are formed. And a pair of waste supply screws, each of which has a substantially cylindrical casing 5 and a screw blade 7A provided in the casing 5 in a horizontal direction and parallel to each other at a predetermined interval and provided on the outer periphery of the rotating shaft portion 6 with a screw blade 7A. 7, 7, and
A waste feeder 10 comprising an electric motor 9 (a hydraulic motor may be used as an example of a rotary driving device) for rotating the pair of waste feed screws 7 in opposite directions (direction of arrow 8). And a crushing device 11 disposed on the discharge port 4 side of the casing 5 in the waste feeder 10.

The crushing device 11 is provided in a shooter 12 which is disposed on the rear side of the casing 5 and guides waste discharged from the outlet 4 of the casing 5 to an incinerator (not shown). It has a crushing blade 13 disposed between the adjacent waste supply screws 7 and 7 so as to oppose each other in the discharge direction and crushes the waste discharged from the discharge port 4. A substantially conical rotating body 14 rotatable around, a rotating shaft 15 connected to the rotating body 14, and an outer peripheral portion of the rotating shaft 15 immediately behind the crushing blade 13 and substantially radially. A plate-like stirring blade 16 provided to protrude and stir the waste crushed by the crushing blade 13; a bearing member 17 provided on the side wall 12a of the shooter 12 to support the rotary shaft body 15; These times Body 14 and rotary shaft 15 (solution 砕羽 roots 13 and the agitating blade 16) motor rotates the 1
And 8. As shown in FIG. 3, the crushing blades 13 provided on the rotating body 14 are substantially radially arranged from the center of the conical axis 14a of the rotating body 14 when viewed from the front, for example, by changing the circumferential direction of the rotating body 14 On the other hand, the stirring blades 16 provided on the rotating shaft 15 protrude from the space between the crushing blades 13 and 13 to the outer peripheral portion of the rotating body 14 in a front view, for example. Three sheets are provided so that waste discharged from both sides of the crushing blade 13 can be stirred.

An incinerator to which the crushed and agitated waste is supplied is disposed below the crushing device 11. In the above configuration, the hopper 2 to the casing 5
The waste put into the casing 5 through the inlet 3 is compressed by being sandwiched between the screw blades 7A and 7A by the pair of waste supply screws 7 and 7 rotating in reverse. They are sequentially conveyed from the inlet 3 to the outlet 4 and discharged. The waste discharged from between the pair of waste supply screws 7 on the outlet 4 side is
Crushing and stirring are performed by the crushing device 11.

That is, the above-mentioned waste is crushed by the crushing blades 13 of the rotator 14 by rotating the rotator 14 through the rotator 15, and the crushed waste is converted into a rotator By the stirring blades 16 provided at 15, the mixture is further stirred and divided, and dispersed around. Therefore, even when massive waste or a large amount of waste is discharged from the discharge port 4, the waste collectively falls (falls).
Is prevented. The stirring blades 16 can also prevent long string-like waste from winding around the rotating shaft 15 of the crusher 11.

As described above, the crushing device 11 is disposed between the pair of waste supply screws 7 on the discharge port 4 side of the casing 5 and opposed to each other in the waste discharge direction. In particular, since the rotating body 14 provided with the crushing blades 13 is located between the pair of waste supply screws 7 in the casing 5, the waste discharged from the discharge port 4 is provided. Can be surely disintegrated by the disintegrating blades 13 of the disintegrating device 11, and the disintegrated waste is further divided by the stirring blades 16 provided behind the disintegrating blades to the surroundings. The incinerator can be dispersed, and thus can be supplied to the incinerator in fixed amounts, and the operation of the incinerator can be stabilized.

The crushing blade 13 and the stirring blade 16 in the waste supply apparatus 1 of the above embodiment are integrally connected to each other and rotate at the same speed. The rotation speeds of the crushing blade 13 and the stirring blade 16 may be different from each other according to the crushing situation. In this case, the rotating body 1 provided with the crushing blades 13
A cylindrical outer fitting rotary shaft is further fitted around the outer circumferential portion of the rotating shaft 15 connected to the rotary shaft 4, and the stirring blades 16 are respectively substantially radially provided on the outer circumferential portion of the outer fitting rotary shaft. It is provided to protrude. An electric motor 18 is connected to each end of the rotary shaft 15 and the externally fitted rotary shaft so that the crushing blade 13 and the stirring blade 16 rotate at different speeds. Alternatively, a transmission mechanism for transmitting different rotational speeds is provided to the rotary shaft 15 and the external fitting rotary shaft, and an electric motor 18 is mounted on one of the rotary shaft 15 and the external fitting rotary shaft.
May be connected so that the crushing blade 13 and the stirring blade 16 rotate at different speeds from each other.

Further, in the above embodiment, the pair of waste supply screws 7, 7 arranged in the casing 5 in a horizontal direction and parallel to each other has been described, but as shown in FIG. The three waste supply screws 7, 7, 7 may be arranged in a horizontal direction and parallel to each other. In this case, two crushing devices 1 are provided on the discharge port 4 side of the casing 5 so as to be located between the three waste supply screws 7, 7, and 7 in the discharge direction.
1 and 11 are arranged at a predetermined interval, and the stirring blades 16 and 16 of these adjacent crushing devices 11 are rotated so as not to collide with each other and in opposite directions to each other. Crushed and stirred the waste discharged from.

Further, the crusher 11 in the above embodiment is used.
Instead of providing the agitating blade 16 on the outer peripheral portion of the rotating shaft body 15, the stirring blade 16 may be provided on the back surface side of the rotating body 14 having the crushing blade 13.

[0019]

According to the waste supply apparatus of the present invention, since the crusher is disposed between adjacent screws on the discharge port side of the casing of the waste supply machine, the crusher is disposed from the discharge port. The discharged waste can be reliably crushed by the crushing blade provided in the crushing device, and the crushed waste can be further crushed by the stirring blade provided behind the crushing blade. It can be divided and dispersed to the surroundings, so that it can be supplied to the incinerator in fixed amounts, thereby stabilizing the operation of the incinerator.

[Brief description of the drawings]

FIG. 1 is a sectional view of a waste supply device of the present invention.

FIG. 2 is a horizontal sectional view of the waste supply device.

FIG. 3 is a sectional view of the waste supply device taken along line AA.

FIG. 4 is a horizontal sectional view of a modified example of the waste supply device.

FIG. 5 is a cross-sectional view of a conventional twin screw type waste supply apparatus.

FIG. 6 is a partially cutaway plan view of the waste supply device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Waste supply apparatus 3 Input port 4 Discharge port 5 Casing 7 Screw for waste supply 10 Waste supply machine 11 Crusher 13 Crusher blade 16 Stirrer blade 18 Electric motor

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F23G 5/44 ZAB F23K 3/16 302D F23K 3/16 302 B09B 3/00 ZABZ F term (Reference) 3K065 AA24 EA06 EA23 EA33 EA43 EA46 4D004 AA46 CA04 CA15 CB13 CB28 CB42 CB45 CB50 4D067 CG06 EE04 GA18 4G068 AA02 AB30 AC01 AC20 AD33 AF40

Claims (2)

[Claims] 1. A waste supply machine according to claim 1, wherein a plurality of waste supply screws are arranged in a horizontal direction and in parallel with each other in a casing having an inlet at one end and an outlet at the other end. A crushing device is disposed on the discharge port side of the casing, and the crushing device is disposed between the adjacent screws and in the direction of discharging the waste, and the waste discharged from the discharge port is disposed. Crushing blade, a stirring blade provided behind the crushing blade to stir the waste crushed by the crushing blade, and a rotary drive device for rotating the crushing blade and the stirring blade And a waste supply device. 2. The waste supply apparatus according to claim 1, wherein the crushing blade and the stirring blade of the crushing device are rotated at different speeds.