JPS6136615A - Refuse supplying device for incinerator of city refuse - Google Patents

Abstract

PURPOSE:To permit fractionalization of refuse by crashing and diffusing by a method wherein a crushing and discharging machine, having several threads screw blade around a rotating shaft laid almost horizontally immediately after the discharge port of a refuse supplying path, is provided. CONSTITUTION:The refuse, transported by a conveyor 3, are crushed, diffused, fractionalized by the shearing force of the screw blades 19 rotating through a chain 23 connected to a motor 2 immediately after being forced out of a discharging port, then, the fractionalized refuses A are supplied into the surface 4 from a chute 5 evenly and continuously. In these circumstance, the effect of the crushing and diffusion is large due to the torsion of the screw blade 19. As the fractionalized refuse A are supplied into the furnace 4 evenly and continuously in such manner, the combustion of the furnace 4 may be stabilized.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to an incineration material supply passage communicating with the inside of a municipal waste incinerator, and a method for conveying incineration material such as a scraper conveyor or a bushing provided in the passage. The present invention relates to a waste supply device for a municipal waste incinerator, which is capable of uniformly and continuously supplying waste sent by the incineration material conveying means into the incinerator.

[Prior Art] Fig. 1 shows an example of a conventional waste supply device for a municipal waste incinerator. In the figure, 1 is a hopper, and 2 is a hopper 1 and an incinerator 4.
The incineration material supply passage 3 is installed in the incineration material supply passage 2, and the scrico conveyor A7 is connected to the chute 5. The garbage is sent to the incinerator 4 by the scraper conveyor "173," and when the weight of the garbage overcomes the sheared horns of the garbage at the v1 exit of the passage 2, it is dropped into the incinerator 4 in the state of solidified garbage A'. This had the disadvantage that garbage was fed intermittently, making combustion in the incinerator more likely to become unstable.

[Object of the Invention] The present invention was made in order to eliminate the above-mentioned drawbacks of conventional municipal waste incinerators, and its purpose is to incinerate waste transported by means of incineration material conveyance such as a screw conveyor or a shovel. To provide a garbage supply device for a municipal waste incinerator, which is capable of crushing and dispersing garbage at a discharge port, uniformly and continuously supplying the waste into the furnace, and stabilizing the combustion state in the furnace.

[Structure of the Invention] Therefore, according to the present invention, a crushing discharger is provided immediately after the discharge port of the incineration material supply passage, in which several screw blades are attached around a rotating shaft suspended horizontally, A garbage supply device for a municipal waste incinerator is provided, which uses a screw blade to crush and disperse garbage transported through an incineration material supply passage by an incineration material conveying means into finely divided waste.

Further, when carrying out the present invention, it is preferable to reverse the direction of twist of a part of the screw blades, or to make the tips of the screw blades have a sawtooth shape. As a result, the solidified waste is broken up,
It is more effective in spreading.

Furthermore, when carrying out the present invention, it is preferable that the screw shaft is movable in the direction in which the waste is fed.

As a result, if dirt is caught between the screw shaft and the discharge port casing, the dirt can be easily removed by moving the screw shaft.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 shows an incinerator equipped with a waste supply device d according to an embodiment of the present invention, in which the inside of the incineration material supply passage 2 is used for discharging the waste transported by the incineration material conveying means, in the illustrated example, the screw conveyor V3. Immediately after the exit, the whole block is shredded as shown by 7 4) [The exit machine is suspended horizontally. The waste transported by the screw competition X73 is crushed and spread by this crushing and discharging machine 7, and becomes finely divided garbage A, which is uniformly and continuously supplied into the incinerator 4 through the chute 5. Ru.

Figures 3 (a) and (b) show details of the crushing and discharging machine,
11 is a discharge port casing, 12 is a discharge port casing 11
13 is the shaft-mounted nozzle 1 attached to the shaft-mounted nozzle.
2, a side cover 14 covers the motor support frame 15;
16 is a bearing supported by the bearing case 14, 17 is a shaft sealing device supported by the side cover 13, 18 is a rotating shaft supported by the bearing 16 and suspended horizontally, 19 is a a screw blade attached to the rotating shaft 18; 20 a sprocket installed integrally with the rotating shaft 18; 21 a motor supported by the frame 15;
22 is a reducer, 23 is a sprocket on the reducer side l-24,
A chain is passed between the sprocket 20 on the rotating shaft side, and 25 is a tension sprocket supported by the frame 15.

In Fig. 2 and Fig. 3 (a) and (b), immediately after the garbage transported by the screw competition 173 is pushed out from the discharge port, the motor 21 moves the garbage to the chain 2.
The garbage △ which is crushed, dispersed and finely divided by being subjected to strong shearing force by the screw blade 19 which is rotated through the screw blade 19
As a result, it is evenly and continuously supplied into class 4 from Sikou 1-5. At this time, since each screw blade is twisted, the crushing and spreading effects are particularly large. In this way, garbage A is subdivided and evenly and continuously supplied into category 4, so combustion in category 4 is stable.

Further, in carrying out the present invention, it is preferable that the screw blade 19 has a portion thereof having a right-hand thread 19a and the other portion thereof having a left-hand thread 19b, as shown in FIG. Furthermore, it is preferable that the tip of the screw blade 19 has a sawtooth shape. This is even more effective in breaking up and dispersing hardened garbage.

In addition, in case dirt gets caught between the screw shaft 18 and the discharge casing 11, it is shown in Figure 3 (b).
J. It is preferable to provide a shaft moving device 26 for horizontally moving the screw shaft 18 in the direction in which the garbage is fed. As the shaft moving device 26, a hydraulic cylinder or the like can be used.

In a fluidized bed incinerator that burns dehydrated sludge cake, a diffuser that rotates around a vertical axis is installed at the discharge port in order to divide the dehydrated cake fed by the screw feeder into small pieces and feed them into the furnace. (Japanese Unexamined Patent Publication No. 7912/1983), however, the cutting blade-shaped rotating diffuser seen in this technology does not have the ability to crush miscellaneous garbage such as municipal waste. , useless.

[Effects of the Invention] As explained above, according to the present invention, the waste transported by the incineration material transporting means such as the screw conveyor is equipped with a screw blade that rotates about the horizontal axis immediately after being pushed out from the discharge port. The solid waste that has been crushed and dispersed is divided and subdivided by the crushing and discharging machine, which allows the waste to be evenly and continuously supplied to the incinerator, thereby stabilizing combustion within the incinerator.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional plan view of a part of a conventional municipal waste incinerator, and FIG. 2 is a cross-sectional view of a part of a municipal waste incinerator equipped with a waste supply device according to an embodiment of the present invention. , Figure 3 (
(a) and (b) show details of the crushing and discharging machine according to the embodiment of the present invention, (a) is a front view partially shown in cross section, (b) is a side view, and FIG. It is a front view showing details.

Claims (4)

[Claims] (1) In a incineration material supply device comprising an incineration material supply passage communicating with the inside of the furnace of a municipal waste incinerator and an incineration material conveying means provided in the passage, immediately after the discharge port of the incineration material supply passage, A garbage supply device for a municipal waste incinerator, characterized in that a crushing and discharging machine is provided with several screw blades attached around a rotating shaft that is suspended horizontally. (2) The waste supply device for a municipal waste incinerator according to claim 1, wherein the twist direction of a part of the screw blades of the crushing and discharging machine is reversed. (3) The waste supply device for a municipal waste incinerator as set forth in claim 1, wherein the tip of the screw blade of the crushing and discharging device is shaped like a saw blade. (4) The garbage supply device for a municipal waste incinerator as set forth in claim 1, wherein the rotating shaft of the crushing and discharging machine is movable in the garbage feeding direction.