JP3125027B2 - Garbage collection equipment by air transport - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of shredders arranged at various places in a building that shreds documents and the like into shredded garbage and a cleaner for cleaning floor garbage is connected to each of the same building. A plurality of arranged inlet valves and an air suction portion at one end, and the other end is located at a predetermined portion of the building, and a branch pipe connected to each shredder and each inlet valve is branched at an intermediate portion. The present invention relates to a garbage collection device for pneumatic transportation including a pipe and a central cleaner provided on the other end side of the transport pipe and having a dust collector and a suction device.

2. Description of the Related Art Conventionally, as a garbage collection facility by pneumatic transportation, there is a technique disclosed in Japanese Patent Application Laid-Open No. 1-285510. In this technology, a shredder that cuts documents into small pieces and forms cut dust and a floor dust suction cleaner are connected to a central cleaner pipe by a branch pipe, and the cut dust and the floor dust are suctioned by a suction device. The air is transported through the central cleaner pipe and collected by the central cleaner. The cleaner is adapted to be configured with a hose equipped with a attachment, secured with the Atatchime cement Insert the hose to the inlet valve which is attached to the branch pipe.

[0003]

SUMMARY OF THE INVENTION In a garbage collection facility by pneumatic transportation, the amount of air (the amount of air flowing through the transport pipe) is small because the cleaner for sucking floor trash must be given a considerably strong suction force. In addition, it is necessary to transport the tube in a state where the degree of vacuum (related to the suction force for dust) is high. On the other hand, shredded garbage coming out of the shredder has a large air volume because it is lightweight and has a low bulk specific gravity.
In addition, it is preferable to transport the tube in a state in which the degree of vacuum is relatively low. In the shredded garbage transport, when air flows through the branch pipe or transport pipe, if the air flow and the degree of vacuum in the transport deviate from the suitable air volume, for example, the air volume is less than the limit,
In addition, when the degree of vacuum is high, the air that has undergone resistance at the bend or the like rotates, and a pulsating flow (a phenomenon in which air swirls and stagnates) is likely to occur. The shredded garbage is
As described above, when moving normally on air, the so-called mixed state in which air enters between the shredded dusts is maintained because of its light weight and small bulk specific gravity. Each of them is likely to be in close contact and hardened state. When this shredded garbage solidifies, the air resistance in the pipe changes,
The condition is promoted in that part, and the same condition occurs in other parts. When such a state progresses, an obstruction in the pipe due to the shredded dust occurs. Also, in the transport of shredded garbage, the air volume exceeds the limit,
In addition, when the degree of vacuum is high, a large amount of shredded dust may pass through the bent portion at one time, and may be clogged without being able to pass through the bent portion, resulting in obstruction of the pipe due to the shredded dust. Once such an obstruction in the pipe has occurred, it is not only difficult to return the pipe to its original normal state even if the air volume and the degree of vacuum in the pipe are adjusted. In addition, especially in severe cases, the pipe must be cleaned. Thus, in this kind of garbage collection equipment, it is necessary to adjust the air volume and the degree of vacuum in the transport pipe according to the type of garbage to be transported.

However, in the above-mentioned conventional example, since the air volume and the degree of vacuum suitable for each of the shredded garbage and the floor garbage are not provided to the transport pipe and the branch pipe each time, the floor garbage can be transported. When the air volume and the degree of vacuum are set as described above, the above-described obstruction in the pipe due to the shredded dust easily occurs. Further, since the conventional shredder employs a discharge method in which the shredded dust is simply charged into the branch pipe, the branch pipe into which a large amount of the shredded dust has been sent at one time is clogged, and the obstruction in the pipe is also obstructed. There is also a problem that causes.

[0005] It is an object of the present invention to solve the above-mentioned problems and to provide a garbage collection facility by pneumatic transportation that solves the problems.

[0006]

SUMMARY OF THE INVENTION The applicant of the present invention has proposed that the adjustment of the air volume and the degree of vacuum in the transport pipe 1 of the garbage collection facility by this type of pneumatic transport can control the amount of air sucked from the air suction section 1a of the transport pipe 1. It was noted that this was achieved by raising and lowering the internal pressure of the transport pipe 1. And the present invention utilizes this point to achieve the above object, as a first solution,
For example, first, six shredders 3a, 3 placed at various places in a building that shreds documents and the like into shredded garbage.
b, 3c, 3d, 3e, 3f, a plurality of inlet valves 6 arranged at various places in the building to which a cleaner for sucking floor debris is connected, and an air suction portion 1a at one end.
And the other end is located at a predetermined part of the building, and at the middle part, each of the shredders 3a, 3b, 3c,
A transport pipe 1 branched from branches 3d, 3e, 3f and branch pipes 7 connected to the inlet valves 6, and a cyclone 21 as a dust collector, a bag filter 22 provided at the other end of the transport pipe 1. In a garbage collection facility by pneumatic transport provided with a central cleaner 2 having a suction blower 23 as a suction device, a venturi pipe 41, a pressure guide pipe 43, and a diaphragm 44 for detecting the internal pressure of the transport pipe 1.
, A valve element 42 that can be displaced to expand and contract the inner diameter of the transport pipe 1, and that the internal pressure of the transport pipe 1 is maintained at a set pressure value set according to the type of dust or the position of the shredder. Further, an automatic pressure adjusting device 4 including a valve driving unit 45 configured to control the opening and closing operation of the valve 42 is attached to the transport pipe 1 near the air suction unit 1a.

As a second solution, for example, each of the shredders 3a, 3b, 3c, 3d, 3e, 3f is provided with a discharge mechanism configured to discharge the shredded trash from the trash container 33 little by little. A connection pipe 37 connected to the discharge site of the trash container 33, a secondary air supply portion 36b through which air can flow so that the shredded trash flows in the moving direction, and an arrangement position in the building, the branch pipe 7 .. And a secondary air control valve 36a configured to adjust the air flow in accordance with the piping state and the amount of shredded dust.

As a third solution, for example, each of the branch pipes 7 to which the shredders 3a, 3b, 3c, 3d, 3e, 3f are connected is connected to an air merging pipe 5 connected to the air suction section 1a. Flash air pipes 51a, 52a, 53a, 54a connected to the air merging pipe 5, and flash valves 51, 52 for opening and closing the respective flash air pipes.
A flash mechanism composed of 53 and 54 is provided.

[0009]

According to the first solution, the air pressure and the degree of vacuum in the transport pipe 1 can be controlled by the automatic pressure adjusting device 4 according to the type of dust and the like.
... can prevent the obstruction in the pipe, and can smoothly transport refuse.

According to the second solution, each of the shredders 3a, 3b, 3c, 3d, 3e, and 3f has a discharge mechanism capable of discharging a small amount of shredded dust, and a discharge mechanism that discharges the dust from the shredder. Since the multi-phase chamber is provided so as to be able to supply the secondary air to the shredded dust, the shredded dust is surely prevented from being clogged without being clogged.
3b, 3c, 3d, 3e, 3f can pass through the branch pipe 7.

According to the third solution, the shredded dust can be forcibly moved to the transport pipe 1 by the flush mechanism in order to prevent the shredded dust from staying in the branch pipes 7. The newly-discharged shredded garbage is added to the shredded garbage discharged and the shredded garbage discharged from other shredders, and the amount of shredded garbage in the branch pipe 7 increases. The resulting obstruction in the tube can be prevented. in addition,
Since the transfer from the branch pipes 7 to the transport pipes 1 can be performed quickly, the transport time can be reduced. If this flushing mechanism is not used in this type of garbage collection equipment, it takes a considerable amount of time to move the shredded garbage remaining in the branch pipes 7 to the transport pipe 1. .

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Here, FIG. 1 is a layout view of garbage transport equipment schematically showing a state in which garbage collection equipment for pneumatic transportation of the present embodiment is installed in a building, FIG. 2 is a schematic front view of an automatic pressure regulator, and FIG. FIG. 3 is a partial vertical sectional front view of a shredder.

As shown in FIG. 1, in the garbage collection facility of this embodiment, one end provided with an air suction section 1a is located on the fifth floor of the building, and the other end is located on the basement floor. And a central cleaner 2 connected to the other end of the transport pipe 1 and provided with a suction device for separating and collecting shredded trash and floor trash, and a second to fifth floor. Shredders 3a, 3b, 3c, 3d, 3e, 3f that are arranged and cut into small pieces of documents and the like to form shredded garbage;
Inlet valves 6 arranged on the first to fifth floors to connect a plurality of cleaners (not shown) for cleaning floor debris, and the respective shredders 3a, 3b, 3
c, 3d, 3e, 3f and branch pipes 7 extending from the inlet valves 6 ... and an automatic control for automatically controlling the internal pressure of the transport pipe 1 to a preset pressure value. A pressure adjusting device 4, a flush mechanism for forcibly moving the shredded trash from the branch pipe 7 to the transport pipe 1, and a central control device for controlling the operation of each member related to the trash collection equipment. (Not shown). A silencer 8 is provided at the air suction portion 1a of the transport pipe 1.
Is attached. In addition, the inlet valve 6 ...
Is provided for inserting and connecting a suction hose having an attachment serving as the cleaner, and for cleaning floor dust by suction of a suction blower 23 described later;
The cleaner is configured to be closed when not in use.

The transport pipe 1, the transport pipe 1 and the branch pipes 7 ...
(Parts where the branch pipes 7 branch off from the transport pipe 1), the shredders 3a, 3b, 3c, 3d, 3e,
The bent portions of the branch pipes 7... Near 3f have a large radius of curvature in order to facilitate passage of shredded garbage and floor garbage, because the stagnation garbage and floor garbage tend to block and block these pipes.
However, if the radius of curvature is too large, the transport pipe 1 and the branch pipes 7... May not be able to be arranged under the floor or in the wall of the building. In the present embodiment, the transport pipe 1 and the branch pipe 7.
In view of the above points, the respective radii of curvature are determined based on the equations described in Table 1.

[Table 1] By the way, as can be understood from Table 1, the radius of curvature R ₁ of the transport pipe 1 for the shredded garbage and the branch pipes 7 is larger than that for the floor garbage. .. In the bent portion of the transport pipe 1 or the branch pipe 7.
It is necessary to radius of curvature R ₁ for shredding garbage. Incidentally, one for floor waste is not any trouble even if the radius of curvature R ₁ of those for larger shredded waste than a radius of curvature R _2.

As shown in FIG. 1, the central cleaner 2 comprises a cyclone 21 which is a dust collector for shredded trash connected by a cyclone connecting pipe 21b provided with a switching valve 21a at the other end of the transport pipe 1; Switching valve 2 at the other end
The bag filter 22 includes a bag filter 22 serving as a dust collector for floor debris connected by a bag filter connecting pipe 22b provided with a bag filter 2a, and a suction blower 23 serving as the suction device connected to the bag filter 22. An inverter control device is attached to a motor (not shown) of the suction blower 23 so that the output of the suction blower 23 can be adjusted according to the transportation of shredded dust and floor dust. Further, below the cyclone 21, there is provided a shredded garbage container 24 for storing the collected shredded garbage. The shredded dust is configured to be able to be sent from the shredded dust storage 24 to a dust carrier 26 via a discharge gate 25 by driving a screw feeder (not shown). Further, below the bag filter 22, a floor refuse storage 27 for storing floor refuse is provided. By the way, shredded trash can be used for water-soluble recycled paper such as toilet paper. For that purpose, it is important to separate and collect the shredded trash. In view of this point, the garbage collection facility by pneumatic transportation is configured so that shredded garbage can be separated and easily sent to the transport vehicle 26.
It can contribute to the reuse of resources. Reference numeral 28 in FIG. 1 denotes a deodorizer for deodorizing exhaust air.

As clearly shown in FIG. 3, the shredder 3b has a cutter 31 provided at the upper part of the main body and a discharge port 32a which is disposed in the main body, has an upper part opened, and is offset from the center. A garbage container 33 having a bottom portion 32; and an arm-shaped discharge member 35 fixed at a center of the bottom portion 32 and connected to a rotating shaft 35a connected to a motor 34 by a connecting belt 34a and rotatable along the bottom 32 surface. And a mixed-phase chamber in which shredded dust together with the primary air from the discharge port 32a and secondary air from the secondary air suction portion provided with the filter 36b can flow into the connection pipe 37. And sensors 38, 38 attached to the upper portion of the trash container 33 for detecting that shredded trash is full. The sensors 38, 38
Detects that the shredded garbage is full, the cutter 3
1 to output a full signal to the central control unit (not shown) in order to stop the operation. The mixed phase chamber is
The secondary air suction part, the connection pipe 37, and the connection pipe 3
7 and a horizontal joint 37b for connecting the ends of the branch pipes 7 in the vertical direction and a horizontal joint 37b for connecting the branch pipes 7 in the horizontal direction. The dust discharging mechanism includes the dust discharging port 32a and the discharging member 35. The discharge port 32a is formed in such a size that the shredded dust can be discharged little by little and surely. The secondary air suction section is provided with a secondary air control valve 36a that can be manually adjusted. Further, in the shredder 3b, the time joint 37a branch pipe 7 end connected to, and蔽弁7b shield provided in the branches pipe 7 end is not transported chopped waste is closed. As shown in FIG. 1, other shredders 3a, 3c, 3d, 3e,
3f corresponding to the shredder 3
As in the case of b, the shutoff valves 7a, 7c, 7d,
7e and 7f are provided, and among the other shredders 3a, 3c, 3d, 3e and 3f, the shredders 3d, 3e and 3f are connected to the vertical joint 37a in the vertical joint 37a similarly to the shredder 3b. Are connected to the shredders 3a and 3c, respectively, and the branch pipe 7 is connected to the lateral joint 37b. Two joints 3 with different orientations like this
7a and 37b are provided for each shredder 3
This is because it is possible to select the one that is easier to install in accordance with the situation of each installation location of a, 3b, 3c, 3d, 3e, 3f. In FIG. 3, reference numeral 39 denotes an operation panel for performing cutting driving and stopping operations of the shredder 3a.

As shown in FIG. 1, each of the shredders 3
a, 3b, 3c, 3d, 3e, 3f are shredders 3
a and 3c are divided into a first group, shredders 3b and 3d are divided into a second group, and shredders 3e and 3f are divided into a third group. The shredder 3 belonging to the same group
The a and 3c, the shredders 3b and 3d, and the shredders 3e and 3f are arranged at positions where the distances from the suction blower 23 are approximated. When one of the shredders of each group, for example, the garbage container 33 of the shredder 3b belonging to the second group is full, and the sensors 38, 38 output a full signal to the central controller, the shredders 3b, 3d. Motor 3 in
4 and an instruction signal to open the shut-off valves 7b and 7d is output from the central control unit. In addition, the automatic pressure adjusting device 4
Now, shredder 3 also belongs to the second group
The pressure setting corresponding to the shredded garbage transport from b and 3d is performed, and the central cleaner 2 also opens the switching valve 21a and switches the switching valve 22a according to an instruction signal from the central control device.
Closing operation, cyclone 21 drive and bag filter 22
A stop or the like is performed. The reason that each shredder is divided in this way is that the shredder can be transported collectively by group,
This is because the transportation time can be reduced as compared with the case where transportation is performed for each shredder. When forming each of the groups, it goes without saying that the number of shredders is determined so that the amount of shredded garbage does not hinder the transportation.

In the automatic pressure adjusting device 4, when the width of the air passage surface in the transport pipe 1 for pneumatic transport is reduced, the internal pressure of the transport pipe 1 increases, the air volume in the transport pipe 1 decreases, and When the degree of vacuum is increased, and conversely, when the air passage surface of the transport pipe 1 is expanded and the internal pressure is reduced, the air volume is increased and the degree of vacuum is reduced. It controls the degree of vacuum. As shown in FIG. 1, a specific automatic pressure adjusting device 4 is provided in the transport pipe 1 near the air suction portion 1a, and as shown in FIG. A valve 42 provided in the transport pipe 1 and displaced so as to expand and contract the air passage surface in the transport pipe 1, a pump (not shown) operating to displace the valve 42, and the venturi pipe A diaphragm 44 connected to the other end of the pressure guide tube 43 having one end connected to the venturi tube 41 so that the internal pressure is transmitted, and a diaphragm 4 connected to the transmitted pressure.
The internal pressure is detected by the displacement amount of 4, and the pump is operated to displace the valve body 42 so that the internal pressure of the transport pipe 1 is set by the instruction signal from the central control device electrically connected. The valve driving unit 45 is constituted. In addition,
The venturi tube 41, the pressure guide tube 43, and the diaphragm 44 constitute a pressure detection mechanism. Then, the valve driving unit 45 of the automatic pressure controller 4 is sent from the central control unit.
Then, an instruction signal is output to the effect that the internal pressure of the transport pipe 1 should be set corresponding to a suitable air volume and a vacuum degree when transporting the refuse.

By the way, in the garbage transportation in the garbage collection facility by pneumatic transportation, it is possible to smoothly apply a suitable air volume and vacuum to the transport pipe 1 and the branch pipes 7... Necessary for transport. Further, since the first, second, and third groups are farther from the suction blower 23 than the first group, the second group is farther from the first group, and the third group is farther from the second group. If the size of the passage surface is the same, the air volume and the degree of vacuum given to the shredded dust discharged from each of the groups will be different from each other, so that the air volume and It is necessary to provide a degree of vacuum.
In this embodiment, as described above, in order to control the air volume and the degree of vacuum, as described above, the width of the air passage surface in the transport pipe 1 is changed each time, and each shredder is controlled. In each of the branch pipes 7, the secondary air control valve 36a in the mixed phase chamber is manually and initially adjusted.

As shown in FIG. 1, the shredder 3
a, 3b, 3c, 3d, 3e, 3f are connected to the flash pipes 51a, 52a, 53 connected to the air suction section 1a via the air merging pipe 5.
a, 54a, and a flash mechanism composed of flash valves 51, 52, 53, 54 capable of opening and closing the flash air pipes. With this flash mechanism,
The shredded dust remaining in the branch pipes 7 can be quickly moved to the transport pipe 1.

The valve body 4 of the automatic pressure adjusting device 4
2. Shut-off valves 7a, 7b, 7c, 7d, 7 of branch pipes 7 ...
e, 7f, the flash valves 51, 52, 53, 54, the switching valve 21a, and the switching valve 22a are each provided with a motor (not shown) electrically connected to the central control device. (Not shown), the motors are driven and open and close, respectively.

By the way, as compared with shredded garbage, a large amount of garbage is not discharged to the transport pipe 1 and the branch pipes 7 at a time, and the floor garbage has a large bulk specific gravity. Since the obstruction in the pipe is unlikely to occur, as in the case of the above-mentioned shredded trash, the cleaners are divided into groups and transported separately, the cleaners are provided with the multi-phase chambers, and a flush mechanism is additionally provided. No need.

Next, the operation of the garbage collection facility according to the above embodiment will be described with reference to FIG. 4 showing the operation of each member in the entire garbage collection facility by pneumatic transportation, and FIG. This will be described with reference to FIG. FIG. 5 shows a part of the entire working time.

As shown in FIG. 4, the cleaner (not shown) is used in the morning and evening hours (8:00 to 1).
0:00 and 17:00 to 19:00), and in this time zone, the cleaner is attached to the inlet valves 6... And the floor dust is cleaned by the suction force of the suction blower 23.
In the time period, the valve drive unit 45 of the automatic pressure control device 4 is operated by an instruction signal of the central control device (not shown) to generate the suitable air volume and the vacuum degree in the transportation of floor debris. To set the internal pressure of the transport pipe 1
Is displaced. The time zone can be arbitrarily set by a timer or the like. On the other hand, in the central cleaner 2, the suction blower 23 is driven, the switching valve 21a is closed, and the switching valve 22a is opened. The floor dust sucked by the cleaners is pneumatically transported in the transport pipe 1 through the inlet valves 6..., The branch pipes 7, and enters the bag filter connecting pipe 22 b of the central cleaner 2, and the switching valve 22 a And enters the bag filter 22. In the bag filter 22, the floor dust is separated from the air, and the floor dust is exhausted to the floor dust reservoir 27, and the air is exhausted to the outside through the suction blower 23 and the deodorizer.

The time zone (1
0:00 to 17:00) are the shredders 3a, 3b,
The shredded dust discharged from 3c, 3d, 3e, 3f is transported. In this time zone, in order to protect the suction blower 23, after a continuous operation for a certain time or more, the downtime S _0.・ ・ Is provided. The pause time S ₀
Is configured to stop the suction blower 23 while the shredder is continuously transported for a certain period of time and then the shredder in one group is finished and the full signal from another group is input. However, if a full signal is output from the shredder of another group to the central control unit during each of the pauses S ₀ ... It is controlled so that the suction blower 23 and each member and the like are kept on standby until ₀ is completed. When a full signal from another group is received during the transportation of shredded garbage in one group, the suction blower 23 is operated as it is. Can be set to the above-mentioned pause time S ₀ . The pause time S
After ₀ completion, if the full signal from any of the shredder is not output, the suction blower 23 proceeds directly hibernation will stop time plus the pause duration S ₁ to the pause time S ₀ (FIG. 4, see FIG. 5).

The operation of the dust collection equipment including the operation of the suction blower 23 described above will be described in more detail. As shown in FIG. 5, the shredded dust transport is performed by the shredder 3a,
When the shredder 3a, which is one of 3b, 3c, 3d, 3e, 3f, is full and the full signal is output, the shut-off valves 7a, 7c of the shredders 3a, 3c belonging to the first group are opened. , Shredders 3a, 3c
The discharge member 35 is operated. The shredded trash in the trash container 33 of each of the shredders 3a and 3c is discharged by a predetermined amount by the operation of the discharge member 35 together with the primary air into the discharge port 32a.
From the secondary air suction portion 36, and the secondary air flowing from the secondary air suction portion 36 increases the air volume, so that the branch pipe 7,
It moves to the transport pipe 1. Subsequently, when the shredded dust has almost moved from the branch pipe 7 to the transport pipe 1, the discharge member 35 stops, and the shutoff valves 7a, 7c corresponding to the respective shredders 3a, 3c are closed. Subsequently, the flush valves 51 and 52 of the flush mechanism are opened, and air flows from the air suction section 1a through the filter 8 to the transport pipe 1 through the flush air pipes 51a and 52a, the branch pipes 7 and 7, and the branch pipe 7 , 7 are reliably transferred to the transport pipe 1. When the flush mechanism operates, the automatic pressure adjusting device 4 performs an operation of displacing the valve body 42 and narrowing the air passage surface in order to maintain the set pressure. When this flush mechanism is used, the air volume in the branch pipes 7 temporarily increases, and the residual shredded dust is quickly removed from the branch pipes 7.
・ There is an advantage that the transportation time can be shortened because it can be eliminated from

[0027] Thus, the branch pipes 7, after the shredded waste through the transport tube 1 is transported to a central cleaner 2, the suction blower 23 is stopped taking pause time S _0. Furthermore, if the full signal is not output from any of the shredders belonging to any group after the end of the pause time S ₀ , the stopped state of the suction blower 23 continues for the pause duration time S ₁ . After the pause time S ₀ and the pause duration time S ₁ , as shown in FIG.
When the full signal is output from d, the shredder 3b is transported together with the shredder 3b in the same manner as in the first group. Next, suction blower 2
3 during the idle time S ₀ , the third group of shredders 3e
When it said full signal is outputted from, for transporting the shredded garbage shredder 3e with shredder 3f from the end of the pause time S ₀ as indicated by the arrow. If the full signal is output to the shredder 3c of the second group during the transportation work of the third group, the shredder 3c is transported together with the shredder 3a together with the shredder 3a following the end of the work as indicated by an arrow. I do. Although not shown, when a plurality of full signal is output in the S ₀ in or downtime work, after work of the other groups, the transport work is continued in the order which has output the full signal .
Since the situation in which each group continuously discharges the shredded dust does not frequently occur, the suction blower 23 appropriately takes the pause time S ₀ . The output of these various full signals is controlled as described above under the control of the central controller. The shredded trash sent into the transport pipe 1 enters the cyclone connection pipe 21b of the central cleaner 2 and passes through the switching valve 21a to the cyclone 21.
to go into. In the cyclone 21, the shredded dust and the air are separated, and the shredded dust is exhausted to the shredded dust storage 24, and the air is exhausted to the outside through the bag filter 22, the suction blower 23, and the deodorizer 28. The shredded garbage collected in the shredded garbage storage 24 is loaded on a garbage truck 26 via a discharge gate 25 by a screw feeder in the shredded garbage storage 24 and carried out of the building.

The garbage collection equipment according to the above embodiment transports floor refuse and shredded garbage separately, so that it can separate and collect shredded garbage, which can contribute to the recycling of garbage. Also,
Since the automatic pressure control device 4 is provided, the air volume and the degree of vacuum can be set and maintained in accordance with the type of dust or the shredder position of each group, so that the dust can be transported smoothly. In particular, in the transportation of shredded garbage, the air volume and the degree of vacuum can be controlled so as to be maintained in appropriate ranges, so that the obstruction in the pipe can be prevented. Further, since a discharge mechanism for discharging the shredded dust little by little and a multi-phase chamber into which the secondary air can flow are provided in each shredder, a large amount of shredded dust is supplied to the branch pipe 7.
.. Can be prevented from being blocked in the branch pipe 7. In addition, since the flush mechanism is provided, the shredded trash in the branch pipe 7 can be forcibly and promptly transported to the central cleaner 2. In this respect, it is only necessary to prevent an obstruction of the branch pipe 7 from being blocked. Speeding up the transportation work.

The present invention is not limited to the above-described embodiment. For example, the number of shredders belonging to one group can be increased by increasing the number of shredders by increasing the size of the entire equipment compared to the embodiment. It may be. Further, the pressure detection mechanism of the automatic pressure control device 4, the discharge mechanism of each shredder, and the multi-phase chamber may be changed to a system different from that of the above-described embodiment. In addition, in the above embodiment, the flash tubes 51a, 52a, 53a, 5
4a is connected to the air suction section 1a of the transport pipe 1 via the air merge pipe 5, but the air merge pipe 5 is connected to another air suction section separately provided, or the flash pipes 51a, 5
The other air suction portions may be separately provided directly on the 2a, 53a and 54a.

[0030]

According to the present invention, the air pressure and the degree of air can be set and maintained in accordance with the type of dust or the position of the shredder by the automatic pressure adjusting device, so that the dust can be transported smoothly. . In particular, in the transportation of shredded garbage, the air volume and the degree of vacuum can be controlled so as to be maintained in appropriate ranges, so that the obstruction in the pipe can be prevented.

Since the shredder is provided with a discharge mechanism and a mixed-phase chamber into which secondary air can flow, the shredded dust is discharged little by little and surely passes through the branch pipe. Therefore, obstruction failure of the branch pipe in the pipe can be prevented.

Since the flush mechanism is provided, the shredded dust in the branch pipe can be forcibly and promptly transported to the central cleaner, so that not only the obstruction of the branch pipe in the pipe but also the speed of the transport operation can be reduced. Can be achieved.

[0033]

[Brief description of the drawings]

FIG. 1 is a schematic diagram schematically showing a state in which a garbage collection facility for pneumatic transportation is installed in a building.

FIG. 2 is a schematic view of an automatic pressure adjusting member.

FIG. 3 is a partial vertical sectional front view of a shredder.

FIG. 4 is a diagram illustrating the operation of each member in the entire garbage collection facility by pneumatic transportation.

FIG. 5 is a diagram illustrating the operation of each member in transporting shredded garbage.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transport pipe 1a Air suction part 2 Central cleaner 3a, 3b, 3c, 3d, 3e, 3f Shredder 4 Automatic pressure regulator 5 Air merging pipe 6 Inlet valve 7 Branch pipe 7a, 7b, 7c, 7d, 7e, 7f Shut-off valve DESCRIPTION OF SYMBOLS 21 Cyclone 22 Bag filter 23 Suction blower 33 Garbage container 32a Discharge port 35 Discharge member 36b Filter of secondary air suction part 37 Connection pipe 42 Valve element 45 Valve element drive part 51,52,53,54 Flush valve 51a, 52a, 53a , 54a Flash air tube

Claims (3)

(57) [Claims] 1. A plurality of shredders arranged at various places in a building that shreds documents and the like into shredded garbage and a plurality of inlets arranged at various places in the same building to which a cleaner for cleaning floor garbage is connected. A valve and an air suction portion at one end, and the other end is located at a predetermined portion of the building,
In addition, a pneumatic transport including a transport pipe in which a branch pipe connected to each shredder and each inlet valve branches at an intermediate portion, and a central cleaner provided on the other end side of the transport pipe and having a dust collector and a suction device. In the garbage collection facility, a pressure detection mechanism that can detect the pressure inside the transport pipe, a valve body that can be displaced to expand and contract the air passage surface of the transport pipe, and the transport pipe internal pressure are preset according to the type of dust or the position of the shredder An automatic pressure adjusting device, comprising: a valve element driving unit configured to control a displacement operation of the valve element based on a detection signal of the pressure detection mechanism so as to be maintained at the respective pressure values. A garbage collection facility for pneumatic transportation, which is attached to a transportation pipe near the air suction section. 2. A plurality of shredders arranged at various places in a building that cuts documents and the like into shredded garbage and a plurality of inlets arranged at various places in the same building to which a cleaner for cleaning floor garbage is connected. A valve and an air suction portion at one end, and the other end is located at a predetermined portion of the building,
In addition, a pneumatic transport including a transport pipe in which a branch pipe connected to each shredder and each inlet valve branches at an intermediate portion, and a central cleaner provided on the other end side of the transport pipe and having a dust collector and a suction device. In the garbage collection facility, each shredder discharges shredded garbage little by little from a built-in garbage container, and a secondary air is provided at a discharge site of the shredded garbage in a direction in which the shredded garbage moves. A garbage collection facility by pneumatic transportation, comprising a mixed phase chamber into which air can flow. 3. A plurality of shredders arranged at various places in a building that cuts documents and the like into shredded garbage and a plurality of inlets arranged at various places in the same building to which a cleaner for cleaning floor garbage is connected. A valve and an air suction portion at one end, and the other end is located at a predetermined portion of the building,
In addition, a pneumatic transport including a transport pipe in which a branch pipe connected to each shredder and each inlet valve branches at an intermediate portion, and a central cleaner provided on the other end side of the transport pipe and having a dust collector and a suction device. In the garbage collection facility, a flush mechanism including a flush air pipe for connecting an air suction portion and a flush valve for opening and closing the flush air pipe is provided on a branch pipe to which each of the shredders is connected. Garbage collection facilities by air transport.