JPS5942599B2 - Waste compressor cleaning method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compressor for pneumatically transporting waste generated from residential areas, other facilities, etc., and packing the waste into containers under vacuum.

Generally, when a compressor with packer is used, waste gets into the chamber where the cylinder is installed inside the packer plate.
This caused foul odor and corrosion.

Furthermore, during regular repairs, maintenance time increases due to the removal of waste that has entered the system and the residual foul odor, resulting in a significant deterioration of the working environment.

In order to eliminate these drawbacks, it is necessary to ensure that no waste remains in the space where the cylinder is located.

The first possibility is to take advantage of the fact that the compressor is under vacuum and install a valve at the rear of the compressor body, which opens and closes in conjunction with the operation of the compressor, sucks in atmospheric air, and closes the cylinder. This method uses airflow to remove residual waste from the installed room to the outside of the packer plate.

This method works under pressure, especially when it is built into an aerodynamic transport device such as a pneumatic conveyor, because air is sucked in from the compressor. This has the drawback that the device remains unsatisfied with its functions as a whole, and is therefore undesirable for practical use.

This invention pneumatically transports waste and prevents waste from entering a room equipped with a cylinder inside the packer plate of a compressor for packing waste into containers under reduced pressure. It is an object of the present invention to provide a method and apparatus for removing waste with minimal impact on a waste pneumatic transportation system.

The present invention provides a pneumatic waste transportation system in which an O
By providing this air passage, keeping the passage open while the packer plate is moving forward to compress the waste, and selectively closing the passage while the packer plate is moving backward, the air can flow between the front and rear of the packer plate while the packer plate is moving forward. Reduces the air pressure difference to prevent waste from entering the back chamber of the packer plate through the gap between the packer plate and the compressor body,
When the packer plate moves backward, the passage is closed, the air in the back chamber of the packer plate is pressurized, and the air is blown through the gap between the packer plate and the main body of the compressor to the compression chamber, thereby cleaning the compressor. .

The compressor internal cleaning device of the present invention is for carrying out the above method, and supplies the rear part of the compressor main body, which constitutes the chamber in which the cylinder is installed inside the packer plate of the packer compressor, and the waste compressed by the compressor. The outlet hoppers of the storage and discharge machine are connected via a valve as an opening/closing device and by a pipe line as an air passage, and a switch that engages with a dog fixed to the upper plate of the packer plate is fixed inside the main body of the compressor. It is fixedly mounted on a cylinder driven by fluid pressure.

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

FIG. 1 is a perspective view showing one waste pneumatic transport system.

A waste inlet 2 is provided in the middle of a dust chute 1 that is installed vertically or diagonally. 4 is a separator 5 that separates waste and air at the central processing plant
(The waste outlet of the separator 5 is connected to the storage and discharge machine 6. The air from the separator 5 is connected to the blower 9 through the air pipe T and the bag filter 8. ing.

On the other hand, a compressor 10 is disposed below the outlet hopper of the storage/discharge machine 6, and a container 11 is secured to the front surface of the compressor 10 in a removable and sealed manner.

Such a waste pneumatic transportation system is a known one, and when the blower 9 is operated, the waste inputted from the input port 2 is transferred through the pneumatic transportation pipe 4 which is under vacuum pressure by opening the discharge valve 3. The air passes through the air pipe 7 and the dust is filtered through the bag filter 8 to become clean air, which is then released into the atmosphere through the blower 9. .

The waste enters the storage and discharge machine 6 from the separator 5, and when the storage and discharge machine 6 is opened, the waste that falls under the outlet hopper is transferred to the compressor 10.
It is pushed into the container 11 and compressed, and the container 11 is removed and transported to a waste disposal site.

FIG. 2 is a longitudinal sectional view of the compressor 10.

A compression chamber 171 at the front of the main body 20 of the compressor is opened below the hopper 16 connected to the outlet of the storage discharger 6, and the compression chamber 17 moves in close contact with the lower side of the packer plate 12 and both side ends. It is now possible.

The main body 20 of the compressor is cylindrical except for the opening at the top of the compression chamber 17, and the packer plate 12 is connected to the main body 2 of the compressor.
It can be moved within 0 with a small gap (it is fitted in).

The packer plate 12 is coupled to the piston rond end of a hydraulically actuated cylinder 13 fixed within the body 20 of the compressor.

Therefore, a substantially sealed chamber 18 is formed on the right side of the packer plate 12 in FIG. 2 and within the compressor main body 20.

The packer plate 12 has a second packer plate 12.
The upper plate 12 is provided so as to cover the lower end of the hopper 16 when moving to the left in the figure.

FIG. 3 is a block diagram showing the method for cleaning the inside of a waste compressor according to the present invention.

What is designated by A is a pneumatic transport system for waste as shown in FIG. 1, excluding the chamber 18 and container 11 at the back of the packer plate 12 of the compressor 10.

An air passage 15 can communicate between the chamber 18 and the air transport system A via a passage opening/closing device 14.

When the air passage 15 becomes extremely short, it becomes integrated with the opening/closing device 14.

In the present invention, the air passage 15 is provided to be openable and closable, and when the packer plate 12 moves forward, the air passage 15 is open so that the compression chamber 17 and the chamber 18 communicate with each other, and the pressure difference between the compression chamber 11 and the chamber 18 is becomes smaller, and when the packer plate 12 moves backward, the air passage 15 is appropriately closed and the pressure in the chamber 18 is increased.

This allows the packer plate 12 and the compressor main body 20 to
It becomes difficult for waste to enter the gap B between the two during compression to push out the waste, and when the packer plate 12 moves backward, the waste is blown away from the gap B into the compression chamber 17.

One end of the air passage 15 is a chamber 18, while the other end is a compression chamber 17.
Although it is limited to the part of the air transport system A that communicates with the compressor chamber 17, it is desirable that the part has a small pressure difference from the air pressure near the compression chamber 17.

Specifically, an air passage 15 is provided between the front and rear surfaces of the packer plate 12 via a direct opening/closing device 14.

In this case, the air passage 15 is integrated with the opening/closing device 14.

Packer play on upper plate of packer plate 12) 12?
An air passage 15 and its opening/closing device 14 may be provided between the upper and lower surfaces of the upper plate 12 in close proximity to each other.

Alternatively, the air passage 15 may be connected to a hopper 16.

Alternatively, if the air pressure difference is small, it may be connected between the separator 5 and the storage/discharge machine 6.

An apparatus for carrying out the method for cleaning the inside of a compressor according to the present invention will be described below.

FIG. 2 shows an embodiment, in which the chamber 18 and the hopper 16 can be communicated with each other through a pipe 15 (the same reference numerals are used hereinafter) as the air passage 15 and an electromagnetic stop valve 14 (the same reference numerals are used hereinafter) as the opening/closing device 14. It becomes.

The upper plate 12 has a switch 21.2 fixed to the cylinder 13.
A dog 19 is attached which can be engaged with 2.

The dog 19 and switches 21 and 22 may be originally installed to realize reciprocating motion of the cylinder 13, and when the dog 19 operates the switch 21, the electromagnetic stop valve 14 is activated via a control circuit (not shown). closes,
When the switch 22 is operated, the electromagnetic stop valve 14 opens.

Therefore, when the cylinder 13 is energized leftward in FIG. 2, the packer plate 12 and its upper plate 12 move to the left, the dog 19 is released from the switch 22, and the electromagnetic stop valve
is held open, and the dog 19 is connected to the switch 2 at the left end of the packer plate 12.
Press 1 to close the electromagnetic stop valve 14, and at the same time close the cylinder 13.
is energized to the right, the packer plate 12 moves to the right, and the dog 19 moves away from the switch 22, but the electromagnetic stop valve 14 is kept closed.

Next, the operation of the compressor internal cleaning device of the present invention will be described.

When the cylinder 13 is energized and the waste thrown into the compression chamber 17 moves to the left in FIG. 2, the packer plate 12 moves forward and pushes the waste in the compression chamber 17 into the container 11.

At this time, the upper plate 12 closes the lower end of the hopper 16.

As the packer plate 12 moves forward, the electromagnetic stop valve 14 is opened.

Air is drawn from the hopper 16 through the pipe 15 and into the chamber 180 via the electromagnetic stop valve 14.

Therefore, the difference in air pressure between the hopper 16, the compression chamber 17, and the chamber 18 is reduced compared to when air is not introduced from the piping 15, and becomes close to equal pressure.
Intrusion of waste into the chamber 18 in the vicinity of the gap is less likely to be assisted by air pressure.

When the packer plate 12 reaches the forward end, the electromagnetic stop valve 1
4 is closed.

Subsequently, the cylinder 13 is energized to the right in FIG. 2, and the packer plate 12 moves backward.

As the packer plate 12 moves backward, the air in the chamber 18 has nowhere to go, and the waste blows into the compression chamber 17 through the gap between the packer plate 12 and the inside of the main body 20 of the compressor.

Therefore, the waste in the gap between the packer plate 12 and the main body 20, and the position of the gap between the packer plate 12 and the main body 20 as the packer plate 12 moves, will be compressed. Room 1
It is blown out to γ.

When the packer plate 12 reaches the reverse end (the compression chamber 17 becomes empty).

The electromagnetic stop valve 14 is then opened.

The interlocking operation of the electromagnetic stop valve 14 and the packer plate 12 is as shown in the embodiment. Also, in the case of the above-mentioned example of operation, the switching device 1
4 may be used as a check valve.

When the packer plate 12 reaches the retreating end, the waste is dumped into the compression chamber 17 by the storage discharger 6.

Thereafter, the above action is repeated by the reciprocating movement of the packer plate 12, and the waste is pushed into the container 10 and compressed.

As an example of another action, the electromagnetic stop valve 14 is kept open during the forward movement of the packer plate 12, and the electromagnetic stop valve 14 is initially opened when the packer plate 12 moves backward, so that the packer plate 12 moves backward. During the retreat of the packer plate 12, which balances the resistance of the air flowing from the chamber 18 to the hopper 16 through the electromagnetic stop valve 14 and piping 15 as the speed increases (if the electromagnetic stop valve 14 is abruptly closed, the air in the chamber 18 Since the pressure of the air increases rapidly, the air suddenly blows through the gap between the packer plate 12 and the main body 20 of the compressor toward the compression chamber 17, and the waste stuck in the gap can be blown out.

Furthermore, as another function, by intermittently opening and closing the electromagnetic stop valve 14 when the packer plate 12 moves backward,
Air may be blown from the chamber 18 toward the compression chamber 17 intermittently through the gap between the packer plate 12 and the main body 20 of the compressor.

Further, instead of the electromagnetic stop valve 14, a pneumatic stop valve may be used.

As mentioned above, the compression chamber side of the packer plate and the space at the back of the packer plate are connected via piping via the electromagnetic stop valve, so when the packer plate moves forward, the air pressure difference between the front and rear sides of the packer plate is small. When the packer plate moves backward, the air pressure in the chamber behind the packer plate can be made higher than that in the compression chamber, which prevents waste from entering the gap between the packer plate and the main body of the compressor. If waste gets into the gap, it is pushed out and the compressor is automatically cleaned.

Since the air within the pneumatic transport system is moved, no air other than the air required for transport is introduced into the pneumatic transport system E, so the compressor can be cleaned without reducing the pneumatic transport force.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a waste pneumatic transport system, FIG. 2 is a longitudinal sectional view of the apparatus of the invention, and FIG. 3 is a block diagram showing the method of the invention. 5... Separator, 6... Storage discharger, 1
0...Compressor, 11...Container, 1
2...Packer plate, 13...Cylinder, 14...Opening/closing device (electromagnetic stop valve), 1
5... Air passage (piping), 16... Hopper, 17... Compression chamber, 18... Chamber.

Claims (1)

[Scope of Claims] 1. A packer compressor for a pneumatic waste transportation system, in which an openable and closable air passage is provided between a chamber configured at the back of a packer plate of a packer compressor and the chamber and the waste pneumatic transportation system excluding containers. By opening the air passage during the forward movement of the plate to compress waste, and closing the air passage as appropriate while the packer plate is moving backward, the air pressure difference between the chambers before and after the packer plate is reduced during the forward movement of the packer plate. A waste compressor cleaning method that prevents and removes waste from entering the gap between the packer plate and the main body of the compressor by increasing the pressure of the air in the chamber behind the packer plate in the backward process. 2. In a pneumatic waste transportation system, a container attached to the end of the container is opened, and near the opening (the main body of a cylindrical compressor with an opening through which the waste enters) In a waste compactor equipped with a packer plate that can fit into the packer plate with as little clearance as possible and a drive device for the packer plate, there is a chamber at the front of the packer plate or a portion that communicates with the chamber, and a chamber at the back of the packer plate or a portion that communicates with the chamber. A waste compressor cleaning device comprising piping communicated via a valve and a valve.