JPS5911482B2 - Garbage distribution supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for supplying municipal waste, other waste, bulk materials, etc. (hereinafter simply referred to as garbage) to a plurality of supply ports to a treatment facility such as a fluidized pyrolysis furnace or fluidized incinerator. This invention relates to a garbage distribution and supply device for distributing and supplying garbage.

In recent years, the amount of waste, etc. has been increasing steadily, and with this, fluidized pyrolysis furnaces and fluidized incinerators (hereinafter simply referred to as "fluidized fluidized furnaces") are used to process waste.

) tend to gradually become larger.

Looking at the process by which garbage is supplied to these fluidized bed furnaces, the collected garbage is first stored in a garbage storage tank, then crushed into pieces according to the required size, sent to the crushed garbage storage tank, and then shredded. The waste is transferred from the waste storage tank to a supply tank by a belt conveyor or a packet conveyor, and is fed into the fluidized bed furnace from the lower part of this supply tank by a screw-type feed mechanism or the like.

When supplying to the fluidized fluidized furnace, a material seal must be formed against the internal pressure of the fluidized fluidized furnace, and the supply rate must be stabilized to some extent.

Furthermore, dirt, etc. must be uniformly distributed within the fluidized bed furnace.

As the fluidized fluidized furnace becomes larger, dispersion within the fluidized fluidized furnace becomes obstructed, so large fluidized fluidized furnaces are equipped with multiple supply ports, multiple feeding devices are installed, or multiple supply ports are In some cases, it is supplied by a single supply device.

If there is one supply port for one supply device, as in the former case, the operation of the supply device is stable, and it is possible to supply a fixed amount while forming a material seal. In addition to increasing equipment costs,
It is necessary to consider the arrangement of equipment.

In the latter case, when a single supply device supplies waste to multiple supply ports, the advantage is that the supply device can be made smaller, but the amount of waste inside the supply device It has the disadvantage that it is difficult to provide a good supply due to poor dispersion.

Conventionally, in the case where two screw-type feed mechanisms were installed at the bottom of the supply storage tank, bridging was likely to occur in the upper space of the screw-type feed mechanism, and when a bridge was formed, garbage etc. were not allowed to flow into the fluidized fluidized furnace. At the same time, the material seal is broken and the high temperature gas inside the fluidized bed furnace flows into the supply equipment, leading to damage to these equipment.

As a means to prevent this bridging inside the supply tank, there is a system that is equipped with an intermediate screw inside the supply tank, but this intermediate screw is equipped with a twisting blade that feeds in two directions, forward and backward with respect to the drive shaft direction. When this intermediate screw operates, excessive compressive force is generated between the inner wall of the supply tank and the twisting blade, resulting in consolidation, and as a result, the screw type supply mechanism has difficulty swallowing and requires a large amount of power. Not only that, but it also tended to interfere with stable supply work into the fluidized bed reactor.

The present invention aims to accurately eliminate these conventional drawbacks by improving the dispersion of dust, etc. inside the supply storage tank, preventing bridging, and ensuring a material seal that does not cause gas venting phenomena. The object of the present invention is to provide a garbage distribution and supply device that enables stable distribution and supply of garbage, etc.

The present invention comprises a supply storage tank connected to a discharge part of a primary garbage supply mechanism, and a distribution screw having continuous twisting blades in one direction is provided in the supply storage tank so as to be rotatable in forward and reverse directions. A garbage basin with a secondary supply mechanism is formed at the bottom of each end, and a level meter for detecting the amount of accumulation in the garbage basin and a bridge breaker for garbage are installed in the garbage basin, and the signal from the level meter is used to control the ash supply. This garbage distribution and supply device is characterized in that a level meter is connected to a primary supply mechanism and a drive mechanism of the distribution screw so as to control the operation of the mechanism and the distribution screw.

The garbage distribution and supply device according to the embodiment of the present invention will be described based on the drawings. It has a one-way continuous twisting blade 4 in a supply storage tank 2 that opens to the discharge part of a primary supply mechanism 1 such as a conveyor for conveying garbage. A distribution screw 3 is provided so as to be rotatable in forward and reverse directions, and dust reservoirs 5 and 6 are formed at the lower portions of both ends of the distribution screw 30, respectively, and secondary supply mechanisms 7 and 8, which are screw-type compressed feeders, are provided below the dust reservoirs 5 and 6. is equipped with a level meter of 9°100 to detect the amount of accumulated garbage.
A detection unit and a bridge breaker 11゜12 for garbage are installed in the garbage reservoirs 5 and 6, and this level meter 9゜10 is connected to the ash supply mechanism 1 and the drive mechanisms 1' and 3' of the distribution screw 3 to check the level. The operation is controlled by a total of 9,100 signals.

As the bridge breaker 1L12, an eccentric cone-shaped member rotatably provided on a rotating shaft is used, and at least one is provided in the garbage reservoir, and a chain wheel is connected to the distribution screw 3.
They are connected and linked using a transmission mechanism such as a chino.

Further, the secondary supply mechanisms 7 and 8 are each connected to a drive machine via a transmission mechanism. ', 8' for rotational operation, but it can also be set so that its operation can be controlled by the level meter 9, 100 signal, if necessary.

Further, the distribution screw 3 is rotatably disposed in the middle of the supply tank 2 in a state perpendicular to the secondary supply mechanism 7.8 and is driven by a drive mechanism 3'.

In the figure, 13 is a driving chino, 14 is a rotating shaft, 15 is a rotating shaft for a bridge breaker, 16 is a bearing, 1T is a sprocket, 18 is a fluidized furnace, 19 is a bracket, and 20 is a frame.

However, the waste processed in the fluidized fluidized furnace is stored in a shredded waste storage tank (
(not shown) is fed by a primary feeding mechanism 1 onto a reversible distribution screw 3 having a unidirectional torsion blade inside a supply storage tank 2, and by the feeding action of the torsion blade 4 of this distribution screw 3, dirt, etc. is transferred to the front garbage basin 5 or the rear garbage basin 6, and is supplied into the fluidized bed furnace 18 by the front secondary supply mechanism 7 or the rear secondary supply mechanism 8 disposed below the garbage basins 5, 6.

Here, if the transport capacities of the dust, etc. of the ash supply mechanism 1, the distribution screw 3, and the secondary supply mechanism 7.8 are respectively Wl, W3, W7, and W8 kg/h, then the following relationship is established between them: to have.

Preferably, the result is that the transfer capacities W1, W3 of said ash supply mechanism 1 and said distribution screw 3 are respectively equal to said secondary supply mechanism 7.
, 8 (W7, W8), the dust etc. gradually accumulate in the dust basin 5 (dust basin 6).

When the level of the garbage in the garbage basin 5 (garbage basin 6) reaches the detection section of the level meter 9 (level meter 10) set at an arbitrary position in the garbage basin 5 (garbage basin 6), the level meter 9 (level meter 10), the distribution screw 30 is operated in the opposite direction.

Accordingly, the garbage supplied from the ash supply mechanism 1 is transferred to the rear garbage basin 6 (front garbage basin 5) by the distribution screw 3, and is disposed at the bottom of the garbage basin 6 (garbage basin 5). It is supplied into the fluidized fluidized furnace 18 by the rear secondary supply mechanism 8 (front secondary supply mechanism 7).

As the supply of garbage, etc. continues, garbage, etc. gradually accumulates in the garbage basin 6 (garbage basin 5), and finally the garbage basin 6 (garbage basin 5)
When the level of garbage, etc. in the garbage reaches the detection part of the level meter 10 (level 9) set at an arbitrary position in the garbage reservoir 6 (the garbage reservoir 5), the signal of the level meter 10 (level meter 9) at this time Accordingly, the rotation of the distribution screw 30 is reversed.

During this period, the bridge breakers 11 and 12 disposed on the side walls of the garbage basins 5 and 5 are constantly rotated.
Prevent or destroy 6 bridges.

The transfer capacity W1 of the ash supply mechanism 1 is larger than the transfer capacity (W7+W8) of the secondary supply mechanisms 7 and 8, and the level of the dirt etc. in the waste reservoirs 5 and 6 is not similar to the liquid level. Since it is not level, each level meter 9
, 10 may issue a full signal at the same time.

At this time, the supply of dust, etc. by the ash supply mechanism 1 is stopped, and the distribution screw 3 is controlled so as to continue rotating in the same direction.

When one of the level meters no longer detects the level, the ash supply mechanism 1 restarts the supply of garbage, etc., and the distribution screw 3 also stops detecting the level of garbage, etc. It is directed towards the garbage basin where the level meter is installed.

In addition, if an arbitrary timer is incorporated into the control circuit when reversing the distribution screw based on the signal from the level meter and when starting the supply of dust, etc. from the primary supply device, the drive source will not be overloaded. (You don't have to make more reversals than necessary.

Further, the secondary supply mechanism for supplying waste etc. from the waste reservoir to the fluidized bed furnace may be of any type as long as it is capable of supplying a fixed amount and prevents backflow of high temperature gas in the fluidized bed furnace, but is preferably It is effective to use a screw-type compression feeder that supplies a fixed amount while forming a material seal at its tip.

As described above, the waste distribution and supply device according to the present invention does not accumulate more waste than necessary in the supply storage tank, so the device is small, and the waste does not stagnate in the supply storage tank. In addition to preventing bridging, even if bridging occurs, it is instantly destroyed by the bridge breaker, allowing the secondary supply mechanism to continue providing stable supply.
In addition, the distribution screw has a continuous twisting blade in one direction, and by rotating it forward and backward, it distributes left and right, so there is less winding of long objects, and there is no compaction of garbage between the screw and the wall. Transfer is carried out smoothly, driving power is reduced, and unnecessary compaction is not performed due to the level meter installed in the garbage basin, making it possible to supply garbage in an extremely rational manner. Since the screw is not subjected to excessive load, it is also possible to link the rotation of the bridge breaker to the rotation of the distribution screw, which eliminates the need for a drive source for the bridge breaker, which not only makes operation easier, but also makes the equipment easier to operate. can be further simplified and miniaturized, and since the rotation of the bridge breaker is also reversed with the reversal of the distribution screw, more effective bridging prevention and destruction effects will occur.

In addition, if this bridge breaker has an eccentric conical shape, very favorable results can be obtained because long objects do not get wrapped around it and the power required for rotation is small. The atrium suppresses this phenomenon, and also allows for easy adjustment of operation in response to changes in the quality of waste, allowing stable operation to continue without excessive compaction or depopulation, and significantly improving treatment efficiency. Furthermore, the addition of the function of loosening the garbage makes the operating conditions favorable, making it possible to perform post-processing such as incineration at an economical cost without any management problems.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway side view, FIG. 2 is a partially cutaway front view, and FIG. 3 is a view taken in the direction of arrow A in FIG. 1. 1...-Primary supply mechanism, 1', 3'...
Piercing mechanism, 2... Supply storage tank, 3... Distribution screw, 4... Twisting blade, 5, 6...
... Garbage tank, 7, 8 ... Secondary supply mechanism, 7'
, 8'...driver, 9,10...level meter, 11.12...bridge breaker, 13
・・・・・・Driving chino, 14, 150. , Rotating shaft, 16... Bearing, 17... Sprocket, 18... Fluidized fluid furnace, 19... Bracket, 20... Frame .

Claims (1)

[Scope of Claims] 1. A supply storage tank connected to a discharge part of a primary garbage supply mechanism, a distribution screw having continuous twisting blades in one direction installed in the supply storage tank so as to be rotatable in forward and reverse directions; Garbage basins each having a secondary supply mechanism are formed below both ends of the distribution screw, and a level meter for detecting the amount of accumulated garbage in the garbage basin and a bridge breaker for debris are installed in the garbage basin. - A garbage distributing and feeding device characterized in that a level meter is connected to a driving mechanism of the primary feeding mechanism and the distribution screw so as to control the operation of the secondary feeding mechanism and the distribution screw. 2. The waste distribution and supply device according to claim 1, wherein the secondary supply mechanism is a screw type compression supply machine. 3. The garbage distribution and supply device according to claim 1, wherein the bridge breaker is driven in conjunction with the distribution screw. 4. The garbage distribution and supply device according to claim 1, wherein the bridge breaker has an eccentric conical shape and is rotatably provided. 5. A plurality of the level meters are installed protrudingly within the garbage section, and the distribution screw is controlled to transfer the garbage to the side where the level meter that no longer detects the garbage level is installed. A waste distribution and supply device according to claim 1.