JPH0826410A - Trash suction and transport device - Google Patents

Abstract

PURPOSE:To facilitate the release of blocked trash by sucking trash through a reverse suction pipe from above a trash discharge chamber when a discharge port of the trash discharge chamber is clogged by trash while the trash is sucked in a trash suction and transport device which collects trash stored in a trash storage and discharge device sucking and transporting the trash through a transport pipe. CONSTITUTION:When trash is collected, a blower 33 is operated, a charge gate 12a is closed, and a discharge gate 19 is opened to start the trash suction work. That is, trash which is conveyed into a trash discharge chamber 20 from a trash storage and discharge device 10 by means of the rotation of screws 14a, 14b is sucked and transported into a trash storage tank 40 of a trash suction vehicle C through a trash transport pipe 18. At this time, it is judged whether pressure in the trash discharge chamber 20 is above a predetermined negative pressure or not. If it is YES, it is judged that the trash discharge chamber 20 is in a blocked condition. After a discharge gate 19 is closed, a reverse suction gate is opened to suck the trash through a reverse suction pipe 28 from above the trash discharge chamber 20, release the trash which causes the blocking in the discharge chamber 20, and then restore to normal trash suction and transport condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust suction / transport device for collecting dust stored in a dust storage / discharge device by suction transport via a dust transport pipe.

[0002]

2. Description of the Related Art Conventionally, a suction pipe provided in a dust suction car provided with a dust storage tank and a suction device is connected to a docking station, and the dust storage is communicated by the suction device to the docking station via a dust transport pipe. While depressurizing the inside of the container and introducing the secondary air into the waste storage container, the dust in the waste storage container along with the secondary air is discharged from the discharge port of the waste storage container to a waste transport pipe, a docking station, and a suction pipe. There is provided a dust suction / transport device that collects dust as needed from a housing complex in which the above-mentioned dust storage container is installed by suction-transporting it to a dust storage tank.

[0003]

However, as in the prior art described above, when the dust storage container is negatively pressured and the secondary air is introduced into the dust storage container to suck and transport the dust, the dust storage container If there is dust clogging the discharge port of the machine and it is completely blocked, there is no means to cancel it and the dust suction work is temporarily stopped, and the worker must restart this work after the clogging dust is cleared. Therefore, there is a problem that the releasing work becomes a burden on the operator and the suction work is deteriorated.

[0004]

According to a first aspect of the present invention, there is provided a dust suction / transporting apparatus, wherein a dust inlet is formed at one end and a dust outlet is formed at the other end. A waste storage / ejection device having a transporting means for transporting the wastes toward the waste delivery port, and a waste transport pipe connected to the dust delivery port of the waste storage / delivery device and connected to the docking station at the bottom. A dust discharge chamber, a secondary air introduction pipe connected to the dust discharge chamber for introducing secondary air into the dust discharge chamber, and a secondary air introduced into the dust discharge chamber interposed in the secondary air introduction pipe A secondary air valve for controlling the above, a bypass pipe having one end connected to the upper part of the waste discharge chamber and the other end connected to the waste transport pipe, and one end connected to the upper part of the waste discharge chamber and the other end Connection between the bypass pipe and the waste transportation pipe Of the reverse suction pipe connected to the dust transport pipe on the more downstream side and having a reverse suction gate interposed, the communication part between the bypass pipe in the dust transport pipe, and the communication part of the reverse suction pipe. It is provided with a discharge gate arranged between them.

According to a second aspect of the present invention, in the dust suction / transport device, when dust is blocked between the dust discharge chamber and the dust transport pipe, and the inside of the dust transport pipe has a negative pressure higher than a predetermined negative pressure. , Closing the discharge gate and opening the reverse suction gate,
Equipped with means for sucking the blocked dust from the reverse suction pipe to the waste transport pipe, and means for performing normal suction transport by closing the reverse suction gate and opening the discharge gate when the blockage is released and returns to a normal state. ing.

[0006]

[Operation] The dust storage and discharge device and the dust discharge chamber are made to have a negative pressure by the suction device, and while introducing the secondary air from the introduction pipe,
The dust discharged from the dust storage and discharge device to the dust discharge chamber is sucked and transported together with the secondary air through the dust transport pipe.

[0007] During this suction work, when dust is clogged in the discharge port of the dust discharge chamber and the discharge port is completely closed, the discharge gate is closed and the reverse suction gate is opened, so that the inside of the dust discharge chamber is closed. The dust is sucked into the dust transport pipe from above the dust discharge chamber through the reverse suction pipe. This will release the dust that has clogged the discharge port of the waste discharge chamber,
After that, the reverse suction gate is closed and the discharge gate is opened to return to the above-described normal suction operation.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic structure of a dust suction / transport device according to the present invention.

The dust suction / transport device of the present invention temporarily stores the dust discharged from the home in the dust storage / discharge device 10 and suction-transports it to the dust storage tank 40 mounted on the dust suction vehicle C.

The dust storing / discharging device 10 is installed, for example, in a basement of a building A such as a high-rise house (in some cases, it may be on the ground), and a dust input port 12 is formed at one upper end of a storage container body 11. Along with the other end, the garbage outlet 13
Is formed, and two screws 14a and 14b are arranged across the bottom of the storage container body 11. A lower end of a chute 15 which is vertically arranged over each floor of the building A is continuously provided to the dust inlet 12 of the storage container body 11. The chute 15 is provided with a loading unit 16 on a required floor, and the dust loaded from the loading unit 16 is stored in the storage container body 11 from the dust loading port 12 via the chute 15.

The screws 14a and 14b are rotatably driven by a driving device (not shown) to remove dust introduced into the storage container body 11 from the dust inlet 12 into the dust outlet 13.
It is to be transported to.

At the dust input port 12, an input gate 12 is provided.
a is provided so as to be openable and closable by an actuator such as an air cylinder 12b. A sensor (not shown) such as a limit switch for detecting opening / closing of the closing gate 12a is provided near the closing gate 12a.

The garbage carrying-out port 1 of the garbage storing and discharging device 10
A garbage discharge chamber 20 is connected to the unit 3.

As shown in FIGS. 2 to 4, the dust discharge chamber 20 is provided with the dust storage chamber 10 so that the dust discharged from the dust storage / discharge device 10 through the dust discharge port 13 can be loaded from the upper portion and dropped to the lower portion. It is connected to the discharge device 10.

A discharge port 20 is provided at the lower end of the dust discharge chamber 20.
a is formed. The discharge port 20a is a connection portion with the dust transport pipe 18, and in order to match the diameter of the dust transport pipe 18, the lower portion of the dust discharge chamber 20 is formed in a shape in which the diameter is gradually reduced to a small diameter.

The cross section of the dust discharge chamber 20 is circular, elliptical or polygonal.

A first secondary air introduction pipe 21 for introducing outside air (secondary air) into the dust discharge chamber 20 is connected to the dust discharge chamber 20 in the middle of the peripheral side surface thereof. The first secondary air introduction pipe 21 is configured to introduce the secondary air from the middle portion of the peripheral side surface of the dust discharge chamber 20 to slightly above the dust discharge chamber 20.

A first secondary air valve 22 is provided in the first secondary air introduction pipe 21. The first secondary air valve 22 is opened and closed by the expansion and contraction of the air cylinder 23.
The opening and closing of the secondary air valve 22 controls the introduction of secondary air into the dust discharge chamber 20. In addition, the first secondary air valve 22
A sensor (not shown) such as a limit switch for detecting opening / closing of the first secondary air valve 22 is provided in the vicinity of.

A second secondary air introducing pipe 24 for introducing outside air (secondary air) into the lower part of the dust discharge chamber 20 is connected to the lower part of the dust discharge chamber 20. The second secondary air introduction pipe 24 is arranged in the vicinity of the connecting portion between the dust discharge chamber 20 and the dust transport pipe 18.

A second secondary air valve 25 is interposed in the second secondary air introducing pipe 24. The second secondary air valve 25 is opened and closed by the expansion and contraction of the air cylinder 26.
The opening and closing of the secondary air valve 25 controls the introduction of secondary air into the lower portion of the dust discharge chamber 20. Further, a sensor (not shown) such as a limit switch for detecting opening / closing of the second secondary air valve 25 is provided near the second secondary air valve 25.

One end of a bypass pipe 27 is connected to the upper portion of the dust discharge chamber 20, and the other end of the bypass pipe 27 communicates with the vicinity of the connection portion of the dust transport pipe 18 to the dust discharge chamber 20. .

Further, one end of a reverse suction pipe 28 is connected to a substantially central portion of the upper surface of the dust discharge chamber 20.
The waste transport pipe 1 having the other end of which is connected to the bypass pipe 27.
8 is connected to the downstream side. The reverse suction pipe 28 is provided with a reverse suction gate 29 which can be opened and closed by an appropriate actuator such as an air cylinder 29a. A sensor (not shown) such as a limit switch for detecting opening / closing of the reverse suction gate 29 is provided near the reverse suction gate 29.

In addition, the waste transport pipe 18 in which the bypass pipe 27 and the reverse suction pipe 28 communicate with each other is connected to the discharge gate 1.
9 are provided. The discharge gate 19 is arranged between the bypass pipe 27 and the reverse suction pipe 28, and can be opened and closed by an appropriate actuator such as an air cylinder 19a. A sensor (not shown) such as a limit switch for detecting opening / closing of the discharge gate 19 is provided near the discharge gate 19.

The above-mentioned air cylinders 12a, 19a,
23, 26 and 29a are connected to an air source (not shown) provided in the dust suction vehicle C via a docking station 60 by an air hose (not shown).

Further, a level sensor 111 for detecting the level of dust stored in the storage container body 11 is provided in the vicinity of the dust input port 12 of the storage container body 11, and the level sensor 111 fills up the dust. Detect that it has become. Although not shown, the storage container body 11 or the dust discharge chamber 20 is provided with a sensor for detecting that the storage container body 11 and the dust discharge chamber 20 are free of dust.

As shown in FIG. 1, a suction pipe 50 of a dust suction truck C is detachably attached to the docking station 60.

The dust suction car C is equipped with a suction device 30 and a dust storage tank 40 for storing the dust sucked by the suction device 30.

The suction device 30 has a suction passage 31 whose one end is connected to the dust storage tank 40 and whose other end is open to the atmosphere, a water task rubber 32 provided in the suction passage 31, and a blower. A blower 33 provided in the suction passage 31 on the atmosphere opening side of the water scrubber 32,
The blower 33 is provided with a muffler 35 provided in the suction passage 31 on the atmosphere open side, and the blower 33 allows the dust discharge chamber 20 to pass through the dust storage tank 40 and the dust transport pipe 18.
Also, the dust storing and discharging device 10 is designed to have a negative pressure. A pressure sensor 36 is provided on the suction side of the blower 33.

The dust storage tank 40 has an opening / closing door 41 whose rear end wall opens rearward about the upper edge of the dust storage tank when the dust is discharged, and dumps the dust in the dust storage tank 40 to the rear of the vehicle. I am trying.

The suction pipe 50 is used for the waste container 4 described above.
At the upper part of 0, a swirl pipe 51 connected to the dust storage tank 40 and rotatably provided around a vertical axis, a flexible pipe 52 connected to the swirl pipe 51, and a flexible pipe 52 are connected. In addition, an undulating pipe 53 provided so as to be capable of undulating, an extensible pipe 55 connected to the undulated pipe 53, a flexible pipe 56 connected to the extensible pipe 55, and a tip end portion connected to the flexible pipe 56. 57. Reference numeral 58 denotes a support member for supporting the distal end portion 57, and reference numeral 59 denotes a support frame for supporting the undulating tube 53.

Therefore, at the time of collecting dust, the dust suction wheel C is brought closer to the docking station 60 and stopped, and is sucked by the swivel movement of the swivel tube 51, the up and down movement of the undulating tube 53, the telescopic movement of the telescopic tube 55, and the like. Tip portion 57 of tube 50
Can be easily connected to the docking station 60, which allows the waste storage tank 40 and the waste transport pipe 18 to be connected.
The waste discharge chamber 20 and the waste storage and discharge device 10 are communicated with each other via the.

Further, the information signal detected by the pressure sensor 36 is input to a control device (not shown) provided in the dust suction car C.

In addition to the information signals detected by the pressure sensor 36, the control device receives signals from the sensors provided in the dust storage and discharge device 10 and the like via a docking station 60, which is a signal cable (shown in the figure). The control device controls the opening / closing of the closing gate 12a, the discharging gate 19, the first and second secondary air valves 22 and 25, and the reverse suction gate 29 based on each input signal and the like. To do.

Reference numeral 17 in FIG. 3 is a control panel provided on the side of the dust storing and discharging device 10. The control panel 17 is used to manually operate each gate or the like at the time of maintenance.

Next, the operation of the dust suction / transporting device thus constructed will be described with reference to FIGS. 5 and 6.

The dust thrown into the throwing section 16 provided on the required floor of the building A is thrown into the dust storing and discharging device 10 through the chute 15 and transferred to the dust carry-out port 13 side by the rotating action of the screws 14a and 14b. It is stored while being stored.

Then, as described above, the dust storing and discharging device 10
In sucking and transporting the dust stored in the container, first, in step S1, the dust suction truck C is moved to the docking station 60.
And the suction pipe 50 of the dust suction truck C and the dust transport pipe 18 are connected via the docking station 60, and the air cylinders 12a, 19a, 23, 2 are connected.
6, 29a and the air source of the dust suction truck C are connected by an air hose via the docking station 60, and each sensor and the air cylinders 12a, 19a, 23,
26, 29a and the control device of the dust suction truck C are electrically connected via a docking station 60 by a signal cable.

Thereafter, in step S2, the blower 33 is operated to perform the starting operation. Next, in step S3, the closing gate 12a is closed, the discharge gate 19 and the first and second secondary air valves 22, 25 are opened, and in step S4, the closing gate 12a is "closed", the discharge gate 19 and the first and second secondary air valves 22 and 25 are opened. After confirming that the second secondary air valves 22 and 25 are "open", the dust suction operation is started in step S5.

In this dust suction work, the dust carried into the dust discharge chamber 20 from the dust storage and discharge device 10 through the dust discharge port 13 by the rotating action of the screws 14a and 14b is sucked by the blower 33 to the dust discharge chamber. It is suctioned and transported to the dust storage tank 40 through the discharge port 20 and the dust transport pipe 18.

During the dust suction work, step S
At 6, it is determined whether or not the dust discharge chamber 20 has a predetermined negative pressure value or more. This negative pressure value is the pressure sensor 3
If it is detected in step 6 and is equal to or less than the predetermined negative pressure value, it is determined that the dust is smoothly sucked and transported from the discharge port, and the dust is sucked until the dust in the dust discharge chamber 20 is not detected in step S7. Continue to work. In this way, when all the dust carried into the dust discharge chamber 20 from the dust storage and discharge device is exhausted, the loading gate 12a is opened in step S8, and the suction work is ended in step S9. Then, in step S10, the dust suction vehicle C is docked at the docking station 6
Let go from 0.

Further, during the above dust suction work, if the negative pressure value is equal to or higher than the predetermined negative pressure value in step S6, it is judged that the dust cannot be discharged from the dust discharge chamber 20 and the condition is a completely closed state. Then, the operations of steps S11 to S18 are performed.

In this operation, first, the discharge gate 19 is closed in step S11, and then the reverse suction gate 29 is opened in step S12.

As described above, first, by closing the discharge gate 19 in step S11, the negative pressure value in the dust discharge chamber is once loosened, and the reverse suction gate 29 can be smoothly opened in step S12. This is because, when the negative pressure value is high, the reverse suction gate 29 is attracted by the influence of this negative pressure,
This is because a phenomenon occurs in which the reverse suction gate 29 does not move to the open side.

Thereafter, the first and second secondary air valves 22 and 25 are closed in step S13, and the negative pressure is again reduced to a constant value in step S14. Open 25. As a result, the dust in the dust discharge chamber 20 is sucked into the dust transport pipe 18 from above the dust discharge chamber 20 through the reverse suction pipe 28.

When this suction is performed, the dust that has clogged the dust discharge chamber 20 is also released, and the negative pressure value in the dust discharge chamber 20 returns to a normal negative pressure value by this release. Become. This is detected in step S16, and if the negative pressure value is normal, the reverse suction gate 29 is closed and the discharge gate 19 is opened in step S17 and S18, and the process returns to step S7 to perform the above-described normal suction operation.

During the suction work in steps S5 to S7, the discharge port 20a of the dust discharge chamber 20 is clogged with dust and the dust is smoothly sucked even if it is not determined in step S6 that the dust is completely closed. When a phenomenon that cannot be prevented occurs, the first and second secondary air valves 22 and 25 are provided in the dust discharge chamber 20.
The secondary air introduced via the exhaust port 20a is difficult to flow.
Will be sucked into the dust transport pipe 18 via the bypass pipe 27.

As a result, the dust in the dust discharge chamber 20 is sucked up in the dust discharge chamber 20, and this action also sucks up the dust clogging the discharge port 20a to loosen the clogging. And
When the dust clogged in the discharge port 20a is loosened, the discharge port 2
Since 0a is opened again, dust is again sucked into the dust transport pipe 18 through the discharge port 20a.

In this example, one dust storage and discharge device 10 is installed. However, a plurality of dust storage and discharge devices 10 are installed at appropriate positions, and the dust storage and discharge devices 10 are installed in the waste transport pipe. You may connect to 18.

Further, in this embodiment, the dust storing and discharging device provided with the two screws 14a and 14b as the conveying means is shown, but the present invention is not limited to this, and a cylindrical drum is rotatably supported and the drum is also supported. A dust storing and discharging device may be provided in which a spiral blade is provided on the inner wall of the device and the dust is conveyed by the action of the blade by the rotation of the drum.

[0051]

As described above, according to the dust suction / transport device of the present invention, during suction work, when dust is clogged in the discharge port of the dust discharge chamber and the discharge port is completely closed, By closing the discharge gate and opening the reverse suction gate, the dust in the dust discharge chamber is sucked into the dust transport pipe from above the dust discharge chamber through the reverse suction pipe, and thereby the discharge port of the dust discharge chamber. After releasing the dust that has clogged in, the reverse suction gate is closed and the discharge gate is opened to return to the normal suction operation described above. It is not necessary for the operator to release the clogged dust, and the blockage of the dust can be automatically released, the burden on the worker is eliminated, and the dust suction work can be performed smoothly and efficiently.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an overall configuration of a dust suction / transport device of the present invention.

FIG. 2 is a side view showing a configuration of a dust storage / discharge device and a dust discharge chamber.

FIG. 3 is a front view showing the configurations of a dust storage and discharge device and a dust discharge chamber.

FIG. 4 is a diagram showing a schematic configuration of a dust discharge chamber.

FIG. 5 is a flowchart illustrating the operation of the dust suction / transport device.

FIG. 6 is a flowchart illustrating the operation of the dust suction / transport device.

[Explanation of symbols]

 10 Garbage Storage / Discharging Device 12 Garbage Inlet 13 Garbage Outlet 14a, 14b Screw (Conveying Means) 18 Garbage Transport Pipe 20 Garbage Discharge Chamber 21 First Secondary Air Introducing Tube 22 First Secondary Air Valve 24 Second Secondary Air Introducing pipe 25 Second secondary air valve 60 Docking station

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] July 28, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0025

[Correction method] Change

[Correction content]

The above-mentioned air cylinders 12b, 19a,
23, 26 and 29a are connected to an air source (not shown) provided in the dust suction vehicle C via a docking station 60 by an air hose (not shown).

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0038

[Correction method] Change

[Correction content]

Then, as described above, the dust storing and discharging device 10
In sucking and transporting the dust stored in the container, first, in step S1, the dust suction truck C is moved to the docking station 60.
And the suction pipe 50 of the dust suction truck C and the dust transport pipe 18 are connected via the docking station 60, and the air cylinders 12b, 19a, 23, 2 are connected.
6, 29a and the air source of the dust suction truck C are connected by an air hose via the docking station 60, and each sensor and air cylinder 12b, 19a, 23,
26, 29a and the control device of the dust suction truck C are electrically connected via a docking station 60 by a signal cable.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0043

[Correction method] Change

[Correction content]

In this operation, first, the exhaust gate 19 is closed in step S11, and then the first and second secondary air valves 22 and 25 are closed in step S12.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0044

[Correction method] Change

[Correction content]

As described above, first, the discharge gate 19 is closed in step S11, the first and second secondary air valves 22 and 25 are closed in step S12, and the negative pressure of the dust transport pipe 18 is relaxed, whereby step S13 is performed. The reverse suction gate 29 can be opened smoothly. This is because when the negative pressure value is high, the reverse suction gate 29 is attracted by the influence of the negative pressure, and the reverse suction gate 29 does not move to the open side.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] 0045

[Correction method] Change

[Correction content]

Thereafter, in step S13, the reverse suction gate 2
9 is opened, and the negative pressure is again reduced to a constant value in step S14, the first and second secondary air valves 2
Open 2,25. As a result, the dust in the dust discharge chamber 20 is sucked into the dust transport pipe 18 from above the dust discharge chamber 20 through the reverse suction pipe 28. ─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] July 28, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 6

[Correction method] Change

[Correction content]

[Figure 6]

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasunori Matsuo 1-1, Shinmeiwa-cho, Takarazuka-shi, Hyogo Shinmeiwa Industry Co., Ltd. Environmental Systems Division

Claims (2)

[Claims] 1. A waste storing and discharging apparatus, which has a dust input port at one end and a dust discharge port at the other end, and is provided with a transport means for transporting the dust input from the dust input port toward the dust discharge port. A device, a waste discharge chamber connected to the waste discharge port of the waste storage and discharge device, and connected to a waste transport pipe connected to the docking station at the bottom, and a waste discharge chamber connected to the waste discharge chamber and provided in the waste discharge chamber. A secondary air introduction pipe for introducing secondary air, a secondary air valve interposed in the secondary air introduction pipe for controlling the introduction of secondary air into the dust discharge chamber, and one end of which is located above the dust discharge chamber. A bypass pipe, the other end of which is connected to the waste transport pipe, and one end of which is connected to the upper part of the waste discharge chamber, and the other end of which is downstream of the connecting portion between the bypass pipe and the waste transport pipe. It is connected to the transport pipe and the reverse suction Opposite the suction tube bets is interposed, and the communicating portion of the bypass pipe in the dust transport pipe,
A dust suction / transport device comprising: a discharge gate disposed between the reverse suction pipe and the communicating portion. 2. When the dust is blocked between the dust discharge chamber and the dust transport pipe and the inside of the dust transport pipe becomes negative pressure higher than a predetermined negative pressure, the discharge gate is closed to close the reverse suction gate. A means to open and block the debris from the reverse suction pipe to the debris transport pipe, and when the blockage is released and returns to the normal state,
2. The dust suction / transport device according to claim 1, further comprising means for closing the reverse suction gate and opening the discharge gate to perform normal suction transport.