JPH068097Y2 - Dust collection device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention temporarily stores dust generated from homes in a dust storage container through an input pipe, and includes a suction device for the stored dust. The present invention relates to a dust collecting device that sucks and collects with a garbage truck.

(Prior Art) Conventionally, as this type of dust collecting apparatus, Japanese Patent Laid-Open No. 1-19
The one described in Japanese Patent No. 7205 is provided by the present applicant.

This dust collection device temporarily stores the dust that has been input from the input port in the dust storage container via the input pipe, and the stored dust is connected to the communication pipe from the discharge port of the dust storage container by the suction device of the dust collection vehicle. It is configured to be sucked and collected in the dust storage chamber of the dust collection vehicle via.

(Problems to be solved by the invention) However, in the above-mentioned conventional ones, the dust storage container is often installed on the ground floor or the basement floor, and the transportation pipe connecting the dust storage container and the refuse collection vehicle is The dust container is buried under the docking station through the ground, extends substantially vertically from the docking station, and communicates with the dust container through the docking station. Here, if the limit vacuum pressure at the time of suction by the blower is Pkgf / cm ² and the specific weight of the fluid is γkgf / cm ³ at the time of collecting dust by suction, the height h that can be sucked by the suction device h Becomes P / γ cm.

For this reason, there is a problem that when the vertical portion of the transport pipe extending substantially vertically is higher than hcm, the fluid accumulates in the vertical portion. If the fluid collects in the vertical portion of the transport pipe in this manner, it is necessary to separately perform work such as draining water, which is troublesome and hinders smooth collection work.

(Means for Solving the Problem) In the dust collecting apparatus of the present invention, the charging pipe provided with a charging port is first.
An intake pipe for connecting outside air to the inside is connected via an opening / closing valve, is connected via a second opening / closing valve, and a transportation pipe serving as a transportation path for transporting the dust accumulated inside is opened / closed by the third opening / closing valve. A dust storage container connected via a valve, a dust storage chamber to which the transport pipe is connected, and a dust collection vehicle equipped with a suction device for depressurizing the inside of the dust storage container, and the dust storage by the suction device. A negative pressure inside the container, by introducing outside air into the dust storage container from the intake pipe in a negative pressure state, in the dust collection device for suction collecting dust collected in this dust storage container in the dust storage chamber, The transport pipe is embedded from the dust storage container through the ground to a position below the docking station, and extends substantially vertically from there to the docking station, and the dust is transferred through the docking station. While in communication with the accommodating chamber, the suction pipe in place of the vertical portions substantially are vertically extended in the transport pipe 4
It is connected via an on-off valve, and on the other hand, in the dust storage chamber,
A first pressure detection device that detects the pressure in the dust storage chamber is provided, and a second pressure detection device that detects the pressure in the dust storage container is provided in the dust storage container,
Based on a plurality of set pressure values preset by the first pressure detection device and the second pressure detection device, the first to third
By controlling the opening / closing operation of the opening / closing valve and the opening / closing operation of the fourth opening / closing valve, and during suction collection, the fourth opening / closing valve is opened to suck the outside air from the suction pipe into the vertical portion of the transportation pipe for transportation. It is configured to suck and collect fluid such as sewage collected in the vertical portion of the pipe.

Further, in the dust collecting apparatus of the present invention, a charging pipe having a charging port is connected through a first opening / closing valve, an intake pipe for taking in outside air is connected through a second opening / closing valve, and A debris storage container to which a transportation pipe that serves as a transportation path for transporting the debris stored in is connected through a third opening / closing valve, a debris storage chamber to which the transportation pipe is connected, and a decompression inside the debris storage container. Consisting of a dust collection vehicle with a suction device to do, negative pressure inside the dust storage container by the suction device,
In the dust collection device that suctions and collects the dust stored in the dust storage container into the dust storage chamber by introducing outside air from the intake pipe into the dust storage container in a negative pressure state, the transport pipe includes the dust storage The container is buried under the docking station through the ground, extends substantially vertically from here to the docking station, and communicates with the dust storage chamber via the docking station.
A suction pipe is connected to an appropriate place of a vertical portion of the transport pipe extending substantially vertically through a fourth opening / closing valve, while the dust storage chamber has a first pressure for detecting a pressure in the dust storage chamber. A detection device is provided, and based on a plurality of set pressure values preset by the first pressure detection device, controls the opening / closing operation of the first to third opening / closing valves and the opening / closing operation of the fourth opening / closing valve, At the time of suction collection, the fourth on-off valve is opened to suck the outside air from the suction pipe into the vertical portion of the transportation pipe, thereby collecting the fluid such as sewage collected in the vertical portion of the transportation pipe by suction. It was done.

(Operation) During suction and collection of dust, the pressure change in the dust storage container or the dust storage chamber that occurs when fluid such as sewage is collected without being sucked up in the vertical portion of the transport pipe is measured by the second pressure detection device or the first pressure detector. 1 By detecting with a pressure detection device, open the 4th on-off valve and suck the outside air from the suction pipe to the vertical part of the transportation pipe, and collect and collect fluid such as dirty water that was not sucked up by this vertical part To do.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 shows a schematic structure of a dust collecting apparatus according to claim 1 of the present invention.

The refuse collecting device temporarily stores the refuse generated from homes in a refuse storing container 10 (hereinafter, simply referred to as a container 10), and the suction device 3 mounted on the refuse collecting vehicle 30 stores the collected refuse.
1 is configured to be sucked and collected in the dust collection chamber 33 of the dust collection truck 30.

The container 10 has an opening 11 formed on the top surface thereof, and the lower end of a chute (feeding pipe) 1 vertically arranged over each floor of the building is connected to the opening 11 continuously. The chute 1 is provided with an inlet 2 on a required floor. And
A first opening / closing valve 13 for opening / closing the opening 11 is provided in the opening 11, and the first opening / closing valve 13 is opened / closed by expansion / contraction of the air cylinder 15. In addition, this first on-off valve 13
A detector (not shown) such as a limit switch for detecting the opening / closing of the first opening / closing valve 13 is provided in the vicinity of.

An intake port 16 is formed on the side wall and the lower portion of the container 10. A base end of an intake pipe 17 is connected to the intake port 16 so that the distal end of the intake pipe 17 can supply the outside air into the container 10 and prevent fluid such as dirty water accumulated in the container 10 from leaking. Is extended in a substantially vertical direction. The intake pipe 17 is provided with a second opening / closing valve 18 for opening / closing the intake pipe 17, and the second opening / closing valve 18 is opened / closed by expansion / contraction of the air cylinder 20. This second on-off valve 1
A detector (not shown) such as a limit switch for detecting the opening / closing of the second opening / closing valve 18 is provided in the vicinity of 8.

Further, a discharge port 21 is formed in the lower portion of the side wall of the container 10, and the discharge port 21 is connected to the communication pipe 23 via a funnel-shaped connecting member 22. Outlet 2
The communication pipe 23 in the vicinity of 1 has a third opening for opening and closing the communication pipe 23.
An on-off valve 25 is provided, and the third on-off valve 25 is opened and closed by expanding and contracting the air cylinder 26. A detector (not shown) such as a limit switch for detecting opening / closing of the third opening / closing valve 25 is provided near the third opening / closing valve 25.

The communication pipe 23 is buried from the container 10 through the ground to a position below the docking station 39 and extends upward from here to the docking station 39. On the upper surface of the docking station 39, a dust collecting vehicle 30 is provided by a coupling 38. It is detachably connected to the suction hose 32 extended from the.

That is, the communication pipe 23 and the suction hose 32 constitute a transportation pipe that transports the dust in the container 10 to the dust storage chamber 33.

The air cylinders 15, 20, and 26 are connected to the docking station 39 by an air hose (not shown).
Is connected to an air source (not shown) provided in the dust collection vehicle 30. The air source may be provided on the container 10 side.

The dust collection vehicle 30 includes a suction device 31 having a blower, and a dust storage chamber 33 that stores the dust sucked by the suction device 31.

The suction device 31 is mounted on the front portion of the vehicle frame, and the dust storage chamber 33 communicating with the suction device 31 is mounted on the rear portion of the vehicle frame. The dust storage chamber 33 is configured to be attachable to and detachable from the suction device 31, and a rear lower portion of the dust storage chamber 33 is pivotally supported by the vehicle frame so as to be tiltable about the pivotal support portion 33a.
The base end of the suction hose 32 is connected to the upper portion of the dust storage chamber 33, and the tip of the suction hose 32 is suspended from the rear portion of the dust storage chamber 33. The base end of the suction hose 32 is configured to be rotatable, and the distal end of the suction hose 32 can be easily connected to the docking station 39 by rotating the suction hose 32.

Here, the dust storage chamber 33 is provided with a first pressure detection device 40 such as a pressure switch for detecting the pressure in the dust storage chamber 33, and the container 10 detects the pressure in the container 10. A second pressure detecting device 50 such as a pressure switch is provided.

The first pressure detection device 40 detects two preset pressure values P1 and P2, and the preset pressure value P1 is a vacuum pressure required to start suction collection, for example, -3.
It is set to 500 mmAq to -4500 mmAq, and the set pressure value P2 is regarded as completion of suction collection, for example, 0 to
It is set to -1700mmAq.

The second pressure detection device 50 uses the preset pressure value P
3 is detected, and the set pressure value P3 is
When the inside of the container 3 reaches the set pressure value P1 required for starting suction collection, the inside of the container 10 does not have the vacuum pressure required for starting suction collection, for example, is set to 0 to -1000 mmAq. Then, assuming that the limit vacuum pressure during suction with a blower is Pkgf / cm ² , the vacuum pressure is P>P1>P2> P3.
Is set to be

A suction pipe 70 is provided in the vertical portion A of the communication pipe 23 that extends substantially vertically upward to the docking station 39. The suction pipe 70 sucks the outside air into the vertical portion A, and is configured to be openable / closable by the fourth opening / closing valve 71. As the fourth opening / closing valve 71, for example, an electromagnetic valve that is opened / closed by a solenoid is used.

Here, at the time of suction collection of dust, the limit vacuum pressure at the time of suction by the blower of the suction device 31 is Pkgf / cm ² ,
Assuming that the specific weight of the fluid is γ kgf / cm ³ , the height h that can be sucked by the suction device 31 is P / γ cm. Therefore, in the vertical portion A of the transport pipe, the fluid cannot be sucked upward from the height h. Therefore, the suction pipe 70 is provided at a position lower than the height h, for example, P1 / γ = h1 in order to suck up the fluid from the height h upward.

Further, the container 10 is provided with a level sensor (not shown) that detects a storage level of dust in the container 10.

The information signals detected by the first and second pressure detecting devices 40 and 50 are the docking station 39.
It is input to a control device (not shown) provided in the refuse collection vehicle 30 by a signal cable (not shown) connected via the.

Further, the control device includes the first and second pressure detection devices 4
In addition to the information signals detected at 0 and 50, the detection signals from the detectors and level sensors provided in the container 10 are also input through a signal cable (not shown) connected via the docking station 39. In the control device, based on the information signals of the first and second pressure detection devices 40 and 50 and the detection signals from the detectors and level sensors, the container 10
Each air cylinder 15, 20, 26, and the fourth on-off valve 7
An operation signal is output to 1 to control the opening / closing of each on-off valve 13, 18, 25 and the fourth on-off valve 71.

Further, the garbage truck 30 is provided with a control panel 34 including an operation switch section and a display section. The control panel 34 may be provided on the driver's seat side.

Next, the operation of the dust collecting apparatus configured as described above will be described with reference to the flowchart of FIG.

The dust thrown in from the charging port 2 is stored in the container 10 via the chute 1.

When collecting dust from the container 10 into the dust collecting vehicle 30, first, the dust collecting vehicle 30 is stopped near the docking station 39, and the suction hose 32 and the communication pipe 23 of the dust collecting vehicle 30 are connected to the docking station 39. And air cylinders 15, 20,
26 and the air source of the dust collecting vehicle 30 are connected by an air hose via the docking station 39, and the second pressure detecting device 50, each detector, level sensor, each air cylinder 15, 20, 26 and the dust collecting vehicle 30 are connected. The control device is connected via a docking station 39 by a signal cable. (Step).

Next, the start-up switch of the suction device 31 is turned on to operate the blower, and suction of air from the container 10 side is started. At about the same time, the first opening / closing valve 13 is closed to open the opening 1
1, the second opening / closing valve 18 is closed to close the intake pipe 17, the fourth opening / closing valve 71 is closed to close the intake pipe 70, and the third opening / closing valve 25 is opened (step,).

As a result, the air in the container 10 is discharged through the discharge port 21 and the communication pipe 2
3, the suction hose 32, and the dust storage chamber 33 are sucked, and are exhausted to the outside through the suction device 31. In this way the container 10
The inside of the container 10 is depressurized by sucking the air therein. Then, in the step, the suction operation is continued until the inside of the dust storage chamber 33 reaches the set pressure value P1 set by the first pressure detection device 40. When the set pressure value P1 is reached, the inside of the container 10 is detected by the second pressure in the step. It is confirmed whether or not the set pressure value P3 set by the device 50 is reached. Then, the set pressure value P3
If it is, it is determined that the vertical portion A of the transport pipe is collecting fluid such as sewage discharged from the dust without being sucked up, and the fourth opening / closing valve 71 is opened to suck air from the suction pipe 70 (step ). As a result, the dirty water collected in the vertical portion A of the transportation pipe can be sucked up.

If it is not the set pressure value P3 in step,
It is determined that the fluid is not accumulated in the vertical portion A of the transport pipe, and the second open / close valve 18 is opened to allow outside air to flow into the container 10 through the intake port 16 of the intake pipe 17 (step). As a result, the air that has flowed in through the intake port 16 flows through the exhaust port 21 to the dust storage chamber 33 side through the communication pipe 23 and the suction hose 32 while swirling inside the container 10 due to the pressure difference. Dust of 2
1, the communication pipe 23, the suction hose 32 through the dust storage chamber 3
Aspirate to 3. These suction operations are continued until the inside of the dust storage chamber 33 reaches the set pressure value P2 set by the first pressure detection device 40 (step).

Then, if the inside of the dust storage chamber 33 reaches the set pressure value P2,
In step, it is judged whether or not it is the preset number N, and if it is not the preset number N, in step 2, the second on-off valve 1
8 or after closing the fourth on-off valve 71, the process returns to step and the same operation as described above is repeated. If the set number of times is N, the blower of the suction device 31 is stopped and the second opening / closing valve 1
8 or the fourth opening / closing valve 71 is closed, the third opening / closing valve 25 is closed, and the first opening / closing valve 13 is opened (step,). In this way, the suction operation is completed.

(Second Embodiment) Next, a dust collecting apparatus according to a second aspect of the present invention will be described.

This dust collecting apparatus does not include the second pressure detecting device 50 of the dust collecting apparatus described in the first embodiment, and the preset pressure values P1, P in the first pressure detecting apparatus 40 are set.
The set pressure value P4 is newly set to 2.

The set pressure value P4 is the pressure (P
A state in which the vacuum pressure is higher than that in 1), for example, −
It is set to 4000 mmAq to -4500 mmAq.

The rest of the configuration is the same as that of the first embodiment.
The operation of this example will be described with reference to the flowchart of FIG.

The dust thrown in from the charging port 2 is stored in the container 10 via the chute 1.

When collecting dust from the container 10 into the dust collecting vehicle 30, first, the dust collecting vehicle 30 is stopped near the docking station 39, and the suction hose 32 and the communication pipe 23 of the dust collecting vehicle 30 are connected to the docking station 39. And air cylinders 15, 20,
26 and the air source of the refuse collection vehicle 30 are connected via an air hose via a docking station 39, and each detector,
The level sensor, each of the air cylinders 15, 20, and 26 and the control device of the dust collecting vehicle 30 are connected via a docking station 39 by a signal cable. (Step).

Next, the start-up switch of the suction device 31 is turned on to operate the blower, and suction of air from the container 10 side is started. At about the same time, the first on-off valve 13 is closed to open the opening 1
1 is closed, the second opening / closing valve 18 is closed to close the intake pipe 17, the fourth opening / closing valve 71 is closed to close the intake pipe 70, and the third opening / closing valve 25 is opened (step,
).

As a result, the air in the container 10 is discharged through the discharge port 21 and the communication pipe 2
3, the suction hole 32, and the dust storage chamber 33 are sucked, and are exhausted to the outside through the suction device 31. In this way the container 10
The inside of the container 10 is depressurized by sucking the air therein. Then, in the step, the suction operation is continued until the pressure in the dust storage chamber 33 detected by the first pressure detection device 40 reaches the pressure P1, and when the pressure becomes P1, the second opening / closing valve 18 is opened in the step to release the outside air. From the intake port 16 of the intake pipe 17 to the container 1
Flow into 0. Next, in the step, the dust storage chamber 3
3 indicates the set pressure value P set by the first pressure detection device 40.
Check if it is 4. Then, if the pressure is P4, it is determined that the fluid such as dirty water coming out of the dust cannot be sucked and is accumulated in the vertical portion A of the transportation pipe, and the fourth opening / closing valve 71 is opened to remove the air from the suction pipe 70. Inhale
The second on-off valve 18 is closed (step,). As a result, the sewage collected in the vertical portion A of the transportation pipe can be sucked up.

If it is not the set pressure value P4 in step,
It is determined that the fluid is not accumulated in the vertical portion A of the transport pipe, and normal suction collection is performed. Then, these suction operations are continued until the inside of the dust storage chamber 33 reaches the set pressure value P2 set by the first pressure detection device 40 (step).

Then, if the inside of the dust storage chamber 33 reaches the set pressure value P2,
In step, it is judged whether or not it is the preset number N, and if it is not the preset number N, in step 2, the second on-off valve 1
8 or after closing the fourth on-off valve 71, the process returns to step and the same operation as described above is repeated. If the number of times N is set,
The blower of the suction device 31 is stopped, the second opening / closing valve 18 or the fourth opening / closing valve 71 is closed, and the third opening / closing valve 25
And open the first on-off valve 13 (step,
). In this way, the suction operation is completed.

(Effects of the Invention) As described above, according to the dust collecting apparatus of the present invention, when suctioned from the dust storage container, fluid such as sewage collects in the vertical portion of the transport pipe without being completely sucked up. ,
This fluid can be automatically released, and it is not necessary to separately perform the draining work as in the conventional case, and the collecting work can be smoothly performed without any trouble. In addition, it is hygienic without touching dirty dirty water.

[Brief description of drawings]

FIG. 1 is a side view showing a schematic configuration of a dust collecting apparatus according to the present invention, FIG. 2 is a flow chart showing the operation of the dust collecting apparatus according to claim 1, and FIG. 3 is a dust collecting apparatus according to claim 2. It is a flowchart figure which shows operation | movement. DESCRIPTION OF SYMBOLS 1 ... Chute (input pipe) 2 ... Input port 10 ... Dust storage container 13 ... First opening / closing valve 17 ... Intake pipe 18 ... Second opening / closing valve 25 ... Third opening / closing valve 30 ... Dust collecting vehicle 31 ... Suction device 23 ... Communication Pipe (transport pipe) 32 ... Suction hose (transport pipe) 33 ... Dust storage chamber 40 ... First pressure detection device 50 ... Second pressure detection device 70 ... Suction pipe 71 ... Fourth opening / closing valve A ... Vertical part

Claims (2)

[Scope of utility model registration request] 1. A dust pipe that is connected to a charging pipe having a charging port through a first opening / closing valve, an intake pipe that takes in outside air through the second opening / closing valve, and is stored inside. A waste storage container to which a transport pipe serving as a transport path for transporting the waste is connected via a third opening / closing valve, a dust storage chamber to which the transport pipe is connected, and a suction device for depressurizing the interior of the dust storage container. It is composed of a garbage collection vehicle provided, and the inside of the garbage storage container is negatively pressured by the suction device, and the outside air is introduced into the dust storage container from the intake pipe in a negative pressure state, so that the dust is stored in this waste storage container. In the dust collecting device that suctions and collects dust into the dust storage chamber, the transport pipe is disposed from the dust storage container to the bottom of the docking station through the ground, and extends substantially vertically from here to the docking station. , This While being communicated with the dust storage chamber via the docking station, a suction pipe is connected to a proper position of a vertical portion of the transport pipe extending substantially vertically through a fourth opening / closing valve, while the dust storage is carried out. The chamber has a first for detecting the pressure in the dust storage chamber.
A pressure detection device is provided, and the dust storage container is provided with a second pressure detection device that detects the pressure in the dust storage container, and is preset by the first pressure detection device and the second pressure detection device. The opening / closing operation of the first to third opening / closing valves and the opening / closing operation of the fourth opening / closing valve are controlled based on a plurality of set pressure values, and the suction valve is opened by opening the fourth opening / closing valve during suction collection. The dust collecting apparatus is configured to suck and collect fluid such as dirty water accumulated in the vertical portion of the transportation pipe by sucking outside air into the vertical portion of the transportation pipe. 2. A dust pipe which is connected to a charging pipe having a charging port through a first opening / closing valve, an intake pipe which takes in outside air into the inside thereof through a second opening / closing valve, and which is stored inside. A waste storage container to which a transport pipe serving as a transport path for transporting the waste is connected via a third opening / closing valve, a dust storage chamber to which the transport pipe is connected, and a suction device for depressurizing the interior of the dust storage container. It is composed of a garbage collection vehicle provided, and the inside of the garbage storage container is negatively pressured by the suction device, and the outside air is introduced into the dust storage container from the intake pipe in a negative pressure state, so that the dust is stored in this waste storage container. In the dust collecting device that suctions and collects dust into the dust storage chamber, the transport pipe is disposed from the dust storage container to the bottom of the docking station through the ground, and extends substantially vertically from here to the docking station. , This While being communicated with the dust storage chamber via the docking station, a suction pipe is connected to a proper position of a vertical portion of the transport pipe extending substantially vertically through a fourth opening / closing valve, while the dust storage is carried out. The chamber has a first for detecting the pressure in the dust storage chamber.
A pressure detection device is provided, and controls the opening / closing operation of the first to third opening / closing valves and the opening / closing operation of the fourth opening / closing valve based on a plurality of set pressure values preset by the first pressure detection device. During suction collection, by opening the fourth on-off valve and sucking outside air from the suction pipe to the vertical portion of the transportation pipe, suction and collection of fluid such as dirty water accumulated in the vertical portion of the transportation pipe is performed. A dust collecting apparatus characterized by being configured.