JPS5950562B2 - Vacuum suction transport device for municipal waste - Google Patents

Description

[Detailed description of the invention] The present invention relates to a vacuum suction transport device for municipal waste.

The collection and transportation of municipal waste causes various difficult problems such as bad odors from garbage storage sites, traffic problems with garbage trucks, and the amount of labor required for garbage collection, but in recent years, as a solution to these problems, pipelines have been developed to transport municipal waste. The vacuum absorption transport method has been attracting attention, and various proposals have been made for its practical use.

There are various types of conventional municipal waste vacuum transport systems, such as dust chute and discharge valve systems.
This is a general flow sheet of the valveless method disclosed in No. 231.

If the garbage post groups are ■[F] CD[F] [F], then this system is composed of a pipe network (indicated by a code as a whole) consisting of these garbage post groups and a collection station 5. .

The collection station 5 includes a primary separator 7 (cyclone) that separates trash from air, a compactor 8 that compresses the separated trash, and a container 9 that packs the compressed trash.
, a secondary separator 10 consisting of a pack filter connected to the primary separator 7, and an air exhaust source (blower) 11 connected to the secondary separator 10. Blower silencer 12
, and a deodorizing device 13.

We will explain how the garbage stored in the garbage post is transported to the collection center and the operating sequence.

First, open the atmospheric suction valve 21 of the collection center, and then open the blower 11.
Start.

Next, atmospheric air is sucked in through the atmospheric suction valve 21, raised in pressure by a blower, and discharged into the atmosphere through a silencer and a deodorizing device.

An appropriate number of line cut valves 20 are installed in the system pipeline network.
A, B, C・・・・・・・・・・・・D
, E are classified into garbage post groups.

The garbage in each garbage post group will be automatically transported one after another according to a preset program.

Now, to describe the case where transportation starts from group A, first, the line cut valve 20 of group A is opened, and the other line cut valves are closed.

Next, by opening the air intake valve 22 of the garbage post 1 and closing the atmospheric suction valve 21 of the collection station, the degree of vacuum in the pipe of the A group line is increased sequentially, and the vacuum level of the garbage post 1 is increased.
The garbage stored in the garbage storage section is transferred into the transport pipe due to the difference between the negative pressure inside the pipe and the atmospheric pressure, and is blown to the collection station 5 by the airflow flowing in from the upper part of the garbage post.

Next, open the air intake valve of garbage post 2, open the air intake valve of garbage post 1, and open the air intake valve of garbage post 1, as described above.
By closing, the garbage in the garbage post 2 is transported to the collection station 5.

By successively repeating this operation, transportation of the lines of group A is completed, and then the lines are switched by opening and closing the cut valve 20, and the garbage in each garbage post is sequentially transported.

By the way, when the garbage is transported by suction using the garbage transport device, the garbage is not transported simultaneously for all garbage posts, but for example, for garbage post group A, first, only garbage post 1 is transported by its air intake. After the garbage transport of garbage post 1 is completed by opening the inlet valve 22, the garbage is transported by the same operation for garbage post 2, and then the garbage is transported sequentially in the order of garbage posts 3 and 4 in the same manner. ing.

Therefore, it takes an equal amount of time to complete the garbage transport for each garbage post group connected to one collection station.

Currently, each garbage post H, 2, 3, 4, etc.
...The transport distance from n to collection station 5 is 1, respectively.

1□, 13, 14.・・・・・・・・・・・・・・・If it is a stone and the transportation speed of garbage is ■m, then all the garbage is Ponutoto・・・・・・・・・・・・・N times The transportation time ΣT required to complete the garbage transportation is as follows.

It would be ideal in terms of transportation time if the collection station could be located in the center of each garbage post group and the transportation pipes for each garbage post group could be installed radially from there, but due to topography etc. is not necessarily installed at such a central position; in fact, it is often installed at the end of the pipe network P, as shown in FIG.

Therefore, the transport distance from each garbage post to the collection station is 11912913,149...
... Stones tend to travel extremely long distances.

As a result, it takes a lot of time to complete one cycle of garbage transportation, and the interval between garbage transportation at each garbage post becomes long, which limits the amount of garbage that the device can process in a day. become.

Moreover, the longer the transportation distance, the higher the power cost and the heavier the economic burden required for waste disposal, which is a drawback.

The present invention has been made for the purpose of eliminating the drawbacks of the above-mentioned vacuum suction transportation system for municipal waste using the valveless method. -Or, by providing multiple garbage collection substations and transporting the garbage from these substations by garbage trucks, etc., the garbage transportation time is shortened, and by placing a bypass line that bypasses these substations, a switching valve is installed. By operating the switch, it is possible to switch between transporting waste to the substation and transporting waste to the collection station via the bypass line, and in the event of a failure at the substation, the waste is transported to the collection station. Features.

The present invention will be described in detail below with reference to the embodiment shown in FIG.

In FIG. 2, the same components as those shown in FIG. 1 are designated by the same reference numerals.

One feature of the present invention is that in a valveless garbage suction transport device, garbage post groups A, B,
C.

Pipeline network P consisting of D, E, F, G, H, I, etc.
One or more garbage collection substations 15 are provided at suitable locations within the interior (for example, as shown).

Substation 15 is, for example, garbage post group A.
, B may be constructed of a primary separator 7', a waste compactor 8', and a container 9', such as the one connected to the waste post groups C and D. It may also be configured to crush the garbage, and furthermore, it may be configured with a primary separator 7' and a garbage collection drum 16, such as those connected to the garbage post groups E and F.

By installing the substation 15 in the pipe network P as described above, if garbage transportation is started by the operation explained for the device in FIG. 1, each garbage post group A
, B, C, D, E, F, etc. are sequentially separated from the air and compressed at the substation 15, and then either directly sent to a waste treatment plant by a garbage truck or sent to a bypass described later by a pipe indicated by a broken line 23. sent to the pipeline.

For dust chute groups G, H, and I, garbage will be transported to collection station 5 as before.

By installing the substation 15 as described above, the substation 15 is
The time ΣT' required to complete one transport of all the garbage mailboxes located upstream from ΣT' is given by the following equation.

In the following formula, l. is the distance from the substation 15 to the collection station 5, and n is the number of garbage boxes.

That is, the waste transportation time ΣT and nJ by the conventional device.

In comparison, the waste transportation time, that is, the operating time of the device, is reduced by ~T.

Therefore, for example, the number n of garbage posts is 60, the transportation speed m is 10 m/s to 15 m/s, and the distance l.

If it is 300m, it will take 30 minutes or 2 minutes compared to conventional equipment.
A reduction in driving time of 0 minutes can be achieved.

Another feature of the present invention is that a bypass pipe 18 that bypasses the substation 15 is arranged in parallel with the substation, and by switching the switching valve 19, the waste is transported to the substation 5 and via the bypass pipe 18. The purpose of this invention is to switch between transporting garbage to the collection station 5.

With this configuration, if garbage cannot be collected using the substation due to a malfunction within the substation, for example, garbage can be transported to the collection station 5 via the bypass pipe 18 by switching the switching valve 19. and can be collected from the same station 5.

In addition, if there is no dust chute or garbage post in the transport pipe between substation 15 and collection station 5 (
If there are no dust chute groups E, F), the primary separator 7, compactor 8 and container 9 at the collection station 5 may not be provided.

With the above configuration, according to the present invention, the operating time of the garbage transport device is shortened, and as a result, more garbage can be processed with the same equipment compared to conventional devices, making it possible to collect garbage in a wide area. Moreover, power costs can be reduced significantly.

In addition, by installing a bypass pipe that bypasses the substation, it is possible to switch between transporting waste to the substation and transporting waste to the collection station, making it possible to transport waste without any problems even when the substation is unavailable. It has excellent effects such as

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of a conventional municipal waste vacuum suction transport device, and FIG. 2 is a diagram showing an embodiment of the transport device according to the present invention. 2...Garbage post, 5...Collection station, 15...Garbage collection substation,
18...Curved bypass pipe, 19...Switching valve.

Claims (1)

[Claims] 1. A valveless municipal waste vacuum suction transport device comprising a garbage collection station equipped with an air exhaust source, a network of transportation pipes connected to the garbage collection station, and a group of garbage posts installed in parallel to the transportation pipes. At least one waste collection substation is installed at a suitable location in the pipe network, and a bypass pipe that bypasses the substation is connected to the transport pipe in parallel with the substation, so that the waste is not transported. A vacuum suction transport device for municipal waste, characterized in that it can be switched between the substation and the collection station.