JPS5943290Y2 - Pneumatic transportation device for municipal waste - Google Patents

Description

[Detailed description of the invention] In recent years, the vacuum collection pipeline method has been attracting attention and being put into practice as a rational method for collecting and transporting municipal waste.

The present invention provides the above-mentioned vacuum collection and transportation device for municipal waste.
By supplying a small amount of pressurized air to the garbage post, garbage can be easily and reliably sent out during garbage collection, and by reducing the air suction noise generated at the garbage post, the silencer for air suction noise can be downsized and The aim is to reduce the installation space and make the garbage post more compact.

As shown in Figures 1 to 3, a conventional garbage vacuum collection and transportation device transports a large number of garbage posts a installed on the ground at predetermined intervals via an air intake valve and a branch pipe C. Several such collection systems e can be connected to a tube d to form one collection system e.

The transport pipes d of e', e"... are connected to the collective transport pipe y through cut valves f, respectively, and the collective transport pipe y is connected to a cyclone equipped with a collection drum B in the collection station h. , and are further connected to a dust collector K, a blower L, a deodorizer wind, and a silencer H in order to form a garbage vacuum collection line.

0 is the air intake valve, p is the garbage storage part, q is the air intake port, r
is a silencer.

Looking at the case where garbage is collected and transported using one collection system e of the conventional vacuum collection and transport device, the collection system C
All garbage posts (Z air intake valves are closed,
Only the cut valve f of the collection system e is kept open and the other cut valves are kept closed.

Next, the various devices in the collection station h are set to a transport start state.

That is, by opening the atmospheric suction valve O and operating the blower I, the equipment such as the collection drum O, the cyclone, the dust collector, etc. are brought into the receiving state.

At this time, the air flow is such that the air is sucked in through the air suction valve θ, and is discharged to the atmosphere through the blower l.

In this state, by opening the air intake valve of the garbage post a to be transported and gradually closing the atmospheric air intake valve O, the pressure inside the transport pipe d increases (negative pressure), and the garbage post (inside Z) When the differential pressure between the atmospheric pressure and the inside of the transport pipe d becomes greater than the resting force of the waste in the waste storage part p, the waste is pushed out of the waste storage part p and transferred from the branch pipe C to the transport pipe d, and then Atmospheric flow from the air intake valve of 1 is directed to collection station h.

Thereafter, the air intake valve of garbage mailbox L-(L) is opened one after another, and the air intake valve of the mailbox that has completed transportation is closed to carry out transportation.

However, in the conventional device mentioned above,
Since all of the air volume required to transport the garbage existing in the garbage storage section p of the garbage storage section P is introduced through the air intake valve installed in the garbage post a, a large amount of air is This results in significant intake noise due to the intake air flow flowing through the air intake valve.

Therefore, conventionally, each garbage post a must be equipped with a silencer r having a sufficient capacity to muffle the inhalation sound to below the noise regulation value in residential areas, etc., and as a result, the silencer r occupies The proportion is more than half of the above-ground part of Garbage Post A (Garbage Post A).
(Not only does it require an extremely large site area for the installation of Z, but it is also heavy, increases the manufacturing cost of garbage post a, makes maintenance troublesome, and gives a feeling of intimidation to the user.) It had some problems.

The present invention was developed to solve the various problems of the conventional devices mentioned above.The present invention is a garbage post with an airtight input port at the top and a branch pipe forming the garbage storage section at the bottom. is connected to a discharge port of a pressurizing blower that supplies waste pressurizing air, and the branch pipe is connected so that its axis intersects at an acute angle with the axis of the transport pipe. This relates to a pneumatic transportation device.

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

FIG. 4 shows the system of the vacuum collection and transportation device of the present invention, in which a large number of garbage posts 1 arranged at required intervals are each connected to a transportation pipe 3 by a branch pipe 2 to form one collection system 4. and each collection system thus formed 4.4', 4".
... is connected to the collective transport pipe 5 via the cut valve 6,
The collection pipe 5 is connected to the equipment of the collection station 7.

A terminal valve 8 is provided at the end of the transport pipe 3, and an air intake port 9 with a suction silencer is provided further outside the terminal valve 8.
will be established.

The collection station 7 includes a cyclone 10 that is connected to the collection pipe 5 and separates trash from air, and a drum 11 that collects and stores the trash separated by the cyclone 10.
, a blower 13 connected to the outlet of the cyclone 10 via a bag filter 12 , and an air intake valve 14 attached to an air pipe between the blower 13 and the bag filter 12
It also includes a deodorizing device 15 and a silencer 16 connected to the exhaust side of the blower 13.

Figures 5 to 7 show details of the first part of the garbage post, in which the branch pipe 2 is θ=20° to the transport pipe 3 when viewed from the top.
The garbage post 1 is integrally formed with the garbage storage part 17 connected at an acute angle of 300 mm and bent in an abbreviated shape when viewed from the side to expose the upper end of the garbage storage part 17 above the ground.

The inside of the garbage post 1 is airtightly divided into two chambers by an intermediate plate 18, and an opening/closing lever 19 is installed on the side of one chamber.
An airtight garbage inlet 20 is provided which can be opened and closed by.

Further, a pressure blower 22 operated by a drive motor 21 is provided in the other chamber, and a silencer 24 is provided between the pressure blower 22 and a louver 23 provided on the side surface. By connecting to one of the chambers, the inside of the waste storage section 17 can be pressurized.

Further, the post 1 is provided with a pressure detection device 26 for detecting the pressure inside the waste storage section 17, and a level switch 27 is provided on the side surface of the waste storage section 17 for detecting whether it is full of waste.

28 indicates garbage and 35 indicates the ground. When collecting and transporting garbage for one collection system 4, first open the cut valve 6 and terminal valve 8 of the collection system 4, close the other cut valves, and close the garbage post 1 of the collection system 4. Close the garbage inlet 20 and lock the opening/closing.

However, in this case, an opening/closing lock is not required if the input port can be used even during collection operation for system functionality or safety reasons.

Next, the various devices in the collection station 7 are set to a transport start state.

That is, the collection drum 11, cyclone 10, bag filter 12, etc. are operated, the air intake valve 14 is opened, and the blower 13 is operated.
is operated, and after normal rotation, the air intake valve 14 is closed to generate an air flow for transporting waste in the transport pipe 3 and the collective transport pipe 5 of the collection system 4.

Next, when vacuum collection and transportation of garbage is started, the pressurizing blower 22 of one of the garbage posts 1 of the collection system 4 is driven to send pressurized air into the garbage post 1. Since the inside (the space above the garbage 28 in the garbage storage section 17) is sealed by the garbage 28 and is in an airtight state, the pressure gradually increases, and the pressure P1 before and after the garbage 28
When the differential pressure Jp with the pipe P2 gradually increases to reach the condition 1p-A≧W・μ A: cross-sectional area of the branch pipe 2 W: weight μ of the waste 28: coefficient, the waste 28 will be removed from the inside of the branch pipe 2. It moves into the transport pipe 3.

The pressure detection device 26 detects that the garbage 28 in the garbage post 1 has flowed into the transport pipe 3, and the pressure blower 22 is stopped.

The garbage 2B that has entered the transport pipe 3 is carried to the collection station 7 via the collective transport pipe 5 by the air flow flowing in from the air intake port 9 with the silencer, and is transported to the collection station 7 by the cyclone 1.
0, the garbage is separated and collected in the collection drum 11.

The suction air is discharged from the blower 13 to the atmosphere through a deodorizing device 15 and a silencer 16 on the discharge side.

When the collection of one garbage post 1 is completed in this way, the pressurizing blower of the next garbage post is driven and the garbage is collected in the same manner as described above.

Therefore, when the vacuum collection and transportation device transfers the garbage 28 from the garbage storage section 17 of each garbage post 1 to the transport pipe 3, it is pushed out using static pressure, so the amount of air taken in from each garbage post is small. Become.

Here, when calculating the amount of air sucked into the garbage post when the garbage storage capacity 200 is 7 (S, S' (apparent specific gravity) = 0.25), (however, leakage amount AV =
0. IV(!:, L, transfer time t f-20se
Let it be c.

(Jv changes depending on the waste quality and storage amount), and the amount of air taken in from the post in the conventional method (this is the transportation air volume itself, so Q = 360 m3/m1-n (U
/lZ=30 ml, 9. D = 500φ), the silencer (silencer duct), which takes up a large space in the conventional system, becomes smaller, and the garbage post can be significantly downsized.

8 and 9 show other embodiments of the present invention,
The difference from the above-mentioned garbage post is that the pressurizing blower is not installed inside the garbage post, and the discharge port of the pressurizing air pipe 30 having the air pipe valve 29 is connected to the upper pressurizing part of the garbage post 1. The garbage posts 1 are connected by a common pressurizing air pipe 31 to a common pressurizing blower 32 provided at the collection station 7 or at an appropriate location.

Note that the same reference numerals as in the above embodiment indicate the same working parts.

In this case, even if the button is pressed, after setting the various devices in the collection station 7 to the transport start state as in the previous embodiment, when starting the vacuum transport of waste, one of the waste posts 1 of the one collection system is pressed. If only the air pipe valve 29 is opened and the air pipe valves of the other garbage posts are closed and the common pressurizing blower 32 is driven, pressurized air will flow to the garbage post 1.
The waste is transported in the same way as above, and one after another
By opening and opening the air pipe valve '29 of each garbage post, garbage can be collected in the same manner as described above.

Figures 10 and 11 show the airtight garbage input port 20 of the present invention.
As shown in FIG. 10, the garbage 28 from the input port 33 is received in an airtight state, and as shown in FIG. A rotary pulp 34 into which waste 28 is thrown is provided.

The airtight garbage inlet 20 used in the present invention may be one that maintains airtightness and has pressure resistance when pressurized by the pressure blower, and as shown in FIG. It is not necessary that the company has the functions that can be added if the company dies.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and that the shapes of the constituent parts may be changed in various ways other than those shown in the drawings, and that a timer or the like may be used instead of the pressure detection device to set the end of the waste delivery. It goes without saying that various modifications may be made without departing from the gist of the vehicle design.

According to the above-mentioned pneumatic transportation device for municipal waste of the present invention, various excellent effects are exhibited as follows.

(1) By using pressurized air to push the garbage inside the garbage post, the amount of suction air from the garbage post is reduced, so the silencer of the garbage post can be smaller, and the garbage post can be made smaller than the conventional one. It does not give the user a feeling of intimidation, unlike garbage mailboxes.

(11) Since there are no valves that operate in the presence of garbage near the garbage post, there are fewer failures and the entire system is highly reliable.

(iiD) Since the lower part of the garbage post body is buried directly in the ground, no pit is required and it is economical.

All of the operating mechanical parts of the Cψ garbage post are installed on the ground, and the machine height is low and compactly mounted, making inspection and repair extremely easy.

(v) Since the branch pipe is connected to the transport pipe at an acute angle, the waste can be easily pushed out into the transport pipe.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the entire conventional garbage vacuum collection and transportation device, FIG. 2 is a partially enlarged perspective view of FIG. Fig. 4 is an overall schematic diagram showing one embodiment of the present invention, Fig. 5 is a side view showing the configuration of the post portion of the present invention, Fig. 6 is a view taken in the direction of the ■ arrow in Fig. 5, and Fig. 7 is a Fig. 6 is a view taken in the direction of the ■ arrow in Fig. 6, Fig. 8 is an overall schematic diagram showing another embodiment of the present invention, Fig. 9 is an enlarged sectional view of the garbage post portion in Fig. 8, and Fig. 10 is the present invention FIG. 11 is an explanatory diagram showing a state in which the rotary valve of FIG. 10 is rotated. 1 is a garbage post, 2 is a branch pipe, 3 is a transport pipe, 4゜4i,
4n... is a collection system, 5 is a collection pipe, 6 is a cut valve, 7 is a collection station, 8 is a terminal valve, 9
is the air intake with silencer, 17 is the garbage storage part, 18
is an intermediate plate, 20 is an airtight garbage inlet, 22 is a pressure blower, 26 is a pressure detection device, 27 is a level switch, 29
Reference numeral 30 indicates an air pipe valve, 30 indicates a pressurizing air pipe, and 32 indicates a pressurizing blower.

Claims (1)

[Scope of utility model registration request] The garbage post has an airtight entrance at the top and a branch pipe forming the garbage storage section at the bottom.
Municipal waste air, characterized in that the discharge port of a pressurizing blower that supplies waste pressurized air is connected, and the branch pipe is connected so that its axis intersects at an acute angle with the axis of the transport pipe. Transport device 5