JP2617525B2 - Blockage position detection method for refuse vacuum transport equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for detecting a closed position of a refuse vacuum transport device.

[Conventional technology]

FIG. 8 shows a system diagram of a conventional refuse vacuum transport device. 1
Is a dust chute, 2 is a dust input port provided on the dust chute, 3 is a dust storage / discharge device provided on the lower end of the dust chute, and 15 is an end of a transport pipe 4 connected to the dust storage / discharge device 3. It is an intake valve provided. A portion provided with reference numerals 1 to 3 and 15 constitutes a refuse input port facility 13. Reference numeral 4 denotes a transport pipe connected to each of the above-mentioned refuse storage / discharge devices 3. The transport pipes 4 are sequentially merged and finally become one transport pipe, which is connected to the waste collection center 12. The transport pipe 4 refers to individual sections separated by a junction, which are connected by a Y-shaped connecting section 18 to form an entire pipeline network. 5
Is a refuse air separator provided in the refuse collection center 12 and connected to the transport pipe 4, 6 is a refuse compressor connected to the refuse air separator, and 7 is a container for storing refuse. 8 is a dust removal device connected to the refuse air separator, 9 is a blower connected to the dust removal device, 10 is a silencer, and 11 is a deodorization device. Symbols 5 to 11
A garbage collection center 12 is constituted by the portions marked with. Reference numeral 14 denotes an inspection port provided in each transport pipe 4.

In the above apparatus, the refuse is introduced from the refuse inlet 2, discharged through the dust chute 1 and the refuse storage / discharge device 3 to the transport pipe 4, and collected by the refuse collection center 12 by the airflow sucked from the intake valve 15. Here, dust and air are separated by the separator 5. The separated refuse is compressed by a refuse compressor 6 and then packed in a container 7 and sent out. Each equipment of the collection center, such as discharging directly to the pit of the incineration plant without installing the refuse compressor 6 or the container 7, is appropriately installed depending on construction conditions, refuse quality, and the like. The air separated by the separator 5 is a dust removing device 8, a blower 9,
It is released to the atmosphere via the silencer 10 and the deodorizing device 11.

Conventionally, when the transport pipe 4 is closed due to dust, the transport pipe 4 is provided around the area where the transport pipe 4 is provided, and inspected from the inspection port 14 provided in each transport pipe to close the pipe. A transport tube had been found.

[Problems to be solved by the invention]

In the refuse vacuum transport device, refuse is transported by an air flow. Therefore, if a heavy thing is erroneously introduced, the refuse is blocked in the middle of the transport pipe. If the pipeline network is complicated, it is not easy to find a blocked transport pipe. There is a problem that it takes a lot of time for an operator to go around the inspection port 14 on the site and search for the closed transport pipe. From these facts, in the event of a waste blockage, the transport line that was blocked in a short time was discovered, the system downtime was shortened,
It is necessary to minimize the impact on users.

The present invention has been made to solve the above-described problems, and aims to provide a method for detecting which one of the transport pipes has clogged with dust in a short time. The configuration of the network and the purpose of the invention will be described in technical detail.

The pipeline network on which the present invention is based is of the type shown in FIG. (A) is a conceptual plan view of a pipeline network, and shows that the pipeline network has a two-dimensional spread.
(B) is a figure which shows connection of a pipeline network. The features of this pipeline network are as follows if described in the order of installation. One transport pipe connected to the air blower installed at the garbage collection center 12 is laid. Two transport pipes are connected to the tip via a Y-shaped connecting portion 18. Two transport pipes are further connected to the tip of both or one of the two transport pipes connected via a Y-shaped connecting portion 18. This connection is repeated a finite number of times to form a branch pipe network having a two-dimensional spread formed by a large number of transport pipes. A refuse inlet facility 13 is provided at the end of each transport pipe located at the end of this pipeline network.

In the above-mentioned pipeline network formation process, the Y-shaped branch 2
When each of the two transport pipes further branches into a Y-shape, only one of the two transport pipes branched into a Y-shape further branches into a Y-shape, and a garbage inlet 13 is provided at the end of the other transport pipe. In some cases, both the two transport pipes branched into a Y-shape are provided with a refuse inlet 13 at their ends.

In this pipeline network, waste is collected at the terminal
Flows toward the collection center 12 from the
The character-shaped connecting portion 18 is a “junction point”. In this pipeline network, a pipe between adjacent Y-connections, a pipe between the collection center and the nearest Y-connection, and a waste inlet facility and the closest Y The tubes between the ligatures are each counted as "one transport tube". Therefore,
The entire pipeline network has a two-dimensional expansion in which a plurality of transport pipes 4 are connected via a Y-shaped connection portion 18.

One refuse inlet facility will be installed only at the end of the transport pipe at the end. A plurality of refuse input facilities are not installed on the side of a single transport pipe. The pipeline network to which the present invention is applied is assumed to have a pipeline with a total length of several kilometers and a number of input port facilities of several tens or hundreds or more.

An object of the present invention is to provide a method of detecting which transport pipe is blocked in the above-mentioned waste transport pipeline network. In the present invention, the identification of the closed transportation pipe is referred to as detection of the closed position.

[Means for solving the problem]

The present invention has solved the above-mentioned problem, and is connected to a blower installed at a garbage collection center for sucking air.
The two transport pipes are connected to the tip of the two transport pipes via a Y-shaped joint, and a Y-shaped joint is further added to the tip of both or one of the two transport pipes. The two transport pipes are connected through a finite number of times, and the connection is repeated finitely. The branch pipe network having a two-dimensional expansion formed by a large number of transport pipes, and each transport located at the end of the pipe network. A method for detecting a blockage position of a garbage vacuum transport device that includes a refuse input port facility provided at an end of a pipe and collects refuse input to the refuse input port facility together with air sucked by the blower of the refuse collection center. And a method having the following features.

(1) A pressure gauge is provided at the inlet of the blower in the refuse collection center or a blower for detecting a closed position provided in parallel with the blower, or an air flow meter is provided downstream, and one of the blowers is started. By measuring the pressure or the air volume is equal to or greater than or equal to a predetermined value by the pressure gauge or the air flow meter, and by measuring the time during which the measured value is maintained, air can be sucked from each inlet port facility. The transportation pipes that are blocked are identified from the relationship between the blocked transportation pipes and the combination of the intake availability conditions of the input port facilities.

(2) In the method for detecting a blockage position of a refuse vacuum transport device according to the above (1), the combination of the availability of intake of each of the inlet facilities with respect to the blockage transport tube is input in advance to a computer for all transport tubes, and the blockage is detected. When this occurs, the intake availability of each inlet facility is automatically checked in order, and the transport pipe that is closed is identified by comparing it with the combination of intake availability that is input in advance to the computer.

(3) In the method for detecting a blockage position of a refuse vacuum transport device described in (1) above, when a state occurs in which refuse is not sucked while using a certain refuse inlet facility, a blower is supplied from the refuse inlet facility. From one input equipment connected to the branch pipe of the Y-joint closest to the blower in the line of the transport pipe connected to one of the following, and sequentially connected to the branch pipe of the Y-joint far away Check if air can be sucked in one of the inlet equipment, and the transport pipe between the first Y-joint where suction is impossible and the farthest Y-joint where suction is possible is blocked. Connected to the branch pipe of the Y-joint of the same transport pipe line that is connected to the branch pipe of the Y-joint farthest from the blower. Check whether air can be sucked in one of the inlet equipment Transport pipe until most blower near Y-junction of the suction Friendly first Y-shaped coupling to a suction Call detects that closed.

(4) In the method for detecting a blockage position of a refuse vacuum transport device described in the above item (1), the arrangement of the refuse transport pipeline network and the input port equipment is displayed on a panel, and in the same panel, each of the input port equipment and the transport pipe are displayed. The inhalation availability is displayed so as to be identifiable with respect to all the numbers, and the blocked transport tube is specified by the criteria listed below.

The transport pipe that is directly connected to the inhalable inlet facility is the inhalable transport pipe.

The transport pipe connected downstream of the at least one inhalable transport pipe (closer to the waste collection center) via a Y-shaped connection is an inspirable transport pipe.

 The area including the inhalable transport pipe is the inhalable area.

The transport pipe directly connected to the non-inhalable inlet port equipment is a non-inhalable transport pipe.

The transport pipe connected to the downstream side of the two non-inhalable transport pipes via a Y-shaped joint is an inhalable transport pipe.

The area including the non-inhalable transport pipe is an inhalable area.

It is specified that there is one transport pipe belonging to the inhalable area and connected to the inhalable area, and this is a closed transport pipe.

[Action]

In the above means, the method of (1) closes by sequentially opening only the intake valve of one refuse inlet facility and closing all the intake valves of the other refuse inlet facilities to confirm whether or not suction is possible. The closed transportation pipe is identified from the combination of the conditions of the intake availability of each input port facility with respect to the transportation pipe thus set.

In the method (2), the above-described procedure is performed in a computer to more quickly identify the closed transport pipe.

In the method (3), when it is clear that a blockage has already occurred when using a specific waste inlet facility, it is checked whether or not only the relevant waste inlet facility can be inhaled, and the blocked transport pipe is removed. Identify.

According to the method (4), whether or not the refuse inlet facility can be sucked is displayed on a panel so that the closed transportation pipe can be identified at a glance.

〔Example〕

FIG. 1 is a system diagram of a refuse vacuum transport apparatus according to a first embodiment of the method of the present invention. Portions denoted by reference numerals 1 to 15 and 18 are the same as those in the case of the prior art, and thus description thereof is omitted. In the figure, reference numeral 16 denotes a silencer 10 from the outlet of the dust removal device 8.
A blower for detecting a closed position provided on a conduit for short-circuiting
Reference numeral 17 denotes an airflow detection orifice provided downstream of the blower 16 on the pipe.

FIG. 2 is a block diagram according to the above embodiment, and shows a blockage position detecting blower 16 after dust blockage occurs.
Is a block diagram showing main operation contents for automatically detecting whether or not air can be taken in from each of the inlet port facilities 13 sequentially. That is, the blower 16 for detecting the closed position
After starting, open the intake valve of one refuse inlet facility and close all the intake valves of the other refuse inlet facilities. Is continued for a predetermined time, it is determined that air cannot be suctioned from the inlet port equipment, and a signal indicating that air cannot be suctioned is transmitted to the computer. On the other hand, when the state equal to or more than the predetermined value has continued for the predetermined time, it is determined that intake is possible, and an intake enable signal is transmitted to the arithmetic unit. Subsequently, the operation contents for sequentially performing the same check for each of the input port facilities are shown.

In FIG. 1, the dust transport blower 9 has a large suction force and a large suction air volume. Therefore, in order to reduce power consumption and to prevent the blocked dust from being compressed and toughened by a large suction force, a small suction is used. A blower 16 for detecting a closed position having a small force and suction air volume is provided separately from the blower 9 for transporting waste. However, the function of the blower 16 for detecting the closing position may be shared by mounting an inlet vane or a variable rotation control device, which is a device for adjusting the suction force and the air volume, to the dust transport blower 9. In addition, a small-sized blower for deodorization may be provided to keep the pressure in the transport pipe negative while the operation is stopped and to prevent odor. However, the blower for deodorization and the blower for detecting the closing position may be used in combination. The air volume may be detected by using an air volume detector such as a Venturi tube or a pitot tube without using the orifice 17. Also, in place of the air volume detection device,
A pressure switch for detecting a negative pressure on the blower inlet side may be used.

Next, a method of identifying a closed transport pipe after determining whether or not intake of each inlet port equipment is possible will be described. The garbage transport pipeline network has a technical feature that the junction is a Y-shaped junction where the junction always joins from two sides and does not join from three or more sides. Transport pipes, as defined above, include pipes between adjacent Y-joints, pipes between the collection center and the closest J-joint, and waste entry facilities. The tubes between the closest Y-connections are each individual transport tubes. Expressed number inlet facilities n, the number of combinations = 2 ⁿ number = 2n-1 intake whether of the transport tube. From this equation, it can be seen that, in general, the number of transport pipes is smaller than the number of combinations of the availability of intake. That is, this indicates that it is mathematically possible to specify the closed transportation pipe by designating the combination of the availability of intake.

FIG. 3 shows a waste transport pipeline network modeled for explanation. For the sake of simplicity, the number of input equipment 13 is set to six,
The letters A to F are respectively assigned. The transport pipes separated by the Y-shaped joint are numbered 1 to 11. FIG. 4 is a diagram for explaining a specific procedure for specifying the transport pipe blocked by dust by applying the above-described detection method to the pipeline network shown in FIG. 4th
In the figure, the mark x indicates that air intake is not possible, and the mark ○ indicates air intake is possible. By preparing this table in advance, it is possible to streamline the specification of the occluded transport tube. In the drawing, the first row (vertical row) indicates that the transport pipe of No. 1 is closed when the intake port equipments A to F cannot all take air. The second column shows that the transport pipe No. 2 is closed when the sign A of the inlet port equipment is inhalable and the intake from B to F is inhalable. Similarly, even if any of the transport pipes from No. 3 to No. 11 is closed, the number of the transport pipe can be specified based on whether or not the intake ports A, B, C, D, E, and F can take air.

In an actual plant, the number of the inlet facilities 13 may be close to 100, which is complicated. Therefore, the block diagram in FIG. 2 is programmed and stored in a computer, and each of the inlet facilities shown in FIG. By immediately inputting the signal indicating whether or not intake is possible to the computer, and processing the signal there, it is possible to more quickly identify the blockage position.

Next, a second embodiment of the present invention will be described. The configuration of the target pipeline network, the device related to refuse transport, and the device for detecting the air volume and the like of this embodiment are the same as those of the first embodiment, and only the method of specifying the closed transport pipe is different. If it is certain that a dust blockage has occurred during the collection of a certain waste inlet facility 13, it is clear that it is blocked by the line of the transport pipe connected to one that connects the inlet facility and the blower. , One of the inlet facilities connected to each branch pipe directly connected to the transport pipe line
The closing position can be promptly identified by confirming whether or not individual intake is possible. In other words, the line of the transport pipe leading to one from the refuse input facility to the blower,
Can air be sucked from one inlet facility connected to the branch pipe of the Y-joint closest to the blower to one inlet facility connected to the branch pipe of the farther Y-joint sequentially? Check to see if the transport tube between the first Y-joint that is not suctionable and the farthest Y-joint that is suctioned is obstructed. The order of confirming whether air can be taken or not can be specified in the same manner as in the reverse order from the farther one of the Y-shaped coupling part to the blower side, and similarly, the closed transportation pipe can be specified.

The above procedure will be described with reference to the example of FIG. If it is evident that a dust blockage has occurred while collecting D,
One of the transport pipes 2, 4, and 7 is blocked. This number 1,
FIGS. 5 and 6 show a method of identifying a closed one of the 2, 4, and 7 transport pipes. FIG. 5 is a diagram for sequentially confirming whether air can be taken from the blower side. If A cannot be taken, the transportation pipe No. 1 is closed, and it is not necessary to check the intake of B, E, and D. When the inlet equipment code A is inhalable and B is not inhalable, the transport pipe of No. 2 is closed, and E and D
Indicates that the check is unnecessary. In this case, it may be confirmed whether or not the intake of C is possible instead of B. Sixth
The figure shows the case where it is confirmed whether or not intake is possible from a distance of the blower.
If D is inhalable and E (or F) is inhalable, number 7
This indicates that the transport pipe is closed and that the B (or C) and A intake checks are not required.

If the processing procedure shown in FIGS. 5 and 6 is also programmed and stored in the processing unit, and the processing is performed in the processing unit, it is possible to quickly identify the closed transportation pipe. Fifth
The method according to FIG. 6 or FIG. 6 is characterized in that, compared with the method according to FIG. .

Next, a third embodiment of the present invention will be described. The configuration of the target pipeline network, the device related to refuse transport, and the device for detecting the air volume and the like of this embodiment are the same as those of the first embodiment, and only the method of specifying the closed transport pipe is different. A distribution panel network and an arrangement panel showing each inlet facility are installed, and the availability of each inlet facility and transport pipe is verified and displayed in an identifiable manner. Since the non-transportable pipe is closed, the closed transport pipe can be identified at a glance.

This is shown in the example of FIG. FIG. 7 is an example of a panel diagram showing the pipeline network and the inlet equipment. The criterion for judging the closed transport pipe is as follows. The determination procedure is performed along the flow direction of the dust conveying air in the pipe.

The transport pipe that is directly connected to the inhalable inlet facility is the inhalable transport pipe.

The transport pipe connected downstream of the at least one inhalable transport pipe (closer to the waste collection center) via a Y-shaped connection is an inspirable transport pipe.

The area including the intake-capable input value equipment and the intake-capable transport pipe is the area where intake is possible.

The transport pipe directly connected to the non-inhalable inlet port equipment is a non-inhalable transport pipe.

The transport pipe connected to the downstream side of the two non-inhalable transport pipes via a Y-shaped joint is an inhalable transport pipe.

The region including the non-suctionable inlet port equipment and the non-suctionable transport pipe is the non-suctionable region.

It is specified that there is one transport pipe belonging to the inhalable area and connected to the inhalable area, and this is a closed transport pipe.

Applying the above-described criteria for determining a closed transport pipe to the example of FIG. 7 results in the following. If A, B, and C are inhalable, thereby forming an inhalable area a. This area is indicated by a white circle and double line in the figure, but on the actual panel,
For example, green light is turned on. On the other hand, the inlet facilities of D, E, and F are incapable of inhaling air. Although this area is indicated by a black circle and a thick black line in the figure, for example, red light is lit on the actual panel. Looking at this panel, there is one transport pipe belonging to the non-breathable area b and connected to the breathable area a,
It is obvious at a glance that it is the transport pipe 4. This is an occluded transport tube.

The determination as to whether or not the transport pipe can be suctioned is made in accordance with the above criteria, that is, along the direction of the flow of the refuse transport air. Accordingly, in order to determine whether or not the transport pipe can be suctioned, it must be verified in advance whether or not the suction of the refuse input port equipment can be performed. In order to successively determine whether or not the suction of the transport pipes connected via the Y-shaped connecting portion toward the downstream side, it is necessary to verify whether or not the suction is possible with respect to all the garbage inlet facilities. The verification of the suction availability of each facility may be performed in any order.

The above-mentioned display is a display for providing a judgment material for specifying the closed transportation pipe. Therefore, according to this method, an arithmetic unit becomes unnecessary, but an arrangement panel or a display device equivalent thereto (for example, a cathode ray tube display device)
Is necessary.

By appropriately using the various methods in each embodiment as described in detail above, it is possible to eliminate the intuition of the conventional operator and quickly identify the transport pipe blocked by the dust.

[Effects of the Invention] In the method of the present invention, in the method (1) described in the section of means, only the intake valve of one refuse inlet facility is opened, and all the intake valves of the other refuse inlet facilities are closed and sucked. By sequentially confirming the availability, it is possible to identify the closed transportation pipe from the combination of the conditions of the intake availability of each input port facility with respect to the closed transportation pipe.

According to the method (2), the closed transportation pipe can be more quickly identified by executing the procedure described in the preceding paragraph in the arithmetic unit.

According to the method (3), when it is clear that blockage has occurred when using a specific waste input facility, only the relevant waste input facility is sucked in order from the closest to the blower or from the farthest. Since it is sufficient to confirm whether or not the operation is possible, the time for the operation of identifying the closed transport pipe can be reduced.

According to the method of (4), the indication of whether or not the garbage input port can be sucked is displayed on the panel, so that the closed transport pipe can be seen at a glance, so that the closed transport pipe can be identified in a shorter time. be able to.

By the above-described various methods, there is an effect that the transport pipe blocked by dust can be found in a short time, and the stop time of the apparatus can be shortened.

[Brief description of the drawings]

FIG. 1 is a system diagram of a refuse vacuum transport apparatus to which a detection method according to a first embodiment of the present invention is applied. FIG. 2 is a block diagram according to the embodiment. FIG. 3 is a diagram of a modeled refuse vacuum transport pipeline network for explaining specific procedures of the embodiment. FIG. 4 is an explanatory view of a specific procedure of the embodiment. FIG. 5 is an explanatory view of a procedure of a detection method according to a second embodiment of the present invention. FIG. 6 is an explanatory view of a procedure of another detection method of the embodiment. FIG. 7 is an explanatory view of a procedure of a detection method according to a third embodiment of the present invention. FIG. 8 is a system diagram of a conventional refuse vacuum transport device. FIG. 9 is a diagram of a refuse vacuum transport pipeline network which is an object of the problem to be solved by the present invention. DESCRIPTION OF SYMBOLS 1 ... Dust chute 2 ... Refuse inlet 3 ... Refuse storage / discharge device 4 ... Transport pipe (individual pipe divided by Y-shaped coupling part 18) 5 ... Separator 6 Refuse compressor 7 … Container 8… Dust removal device 9… Blower 10… Silencer 11… Deodorization device 12… Collection center 13… Input port equipment 14… Inspection port 15 …… Intake valve 16 …… Blower for detecting closed position 17 Airflow detection orifice 18 Y-shaped joint

Claims (4)

(57) [Claims] 1. A transport pipe connected to a blower installed in a garbage collection center and connected to a blower for sucking air is connected to two transport pipes via a Y-shaped joint, and the two coupled pipes are connected to each other. Two transport pipes are further connected to the tip of both or one of the transport pipes via a Y-shaped joint, and this connection is repeated finitely to form a two-dimensional spread formed by a large number of transport pipes. A branch pipe network, and a refuse input port provided at the end of each transport pipe located at the end of the pipe network. In the method of detecting a closed position of a refuse vacuum transport device that collects together with air sucked by a blower, whether a pressure gauge is provided at an inlet of the blower in the refuse collection center or a blower for detecting a closed position provided in parallel with the blower. Or downstream Provide a flow meter, start any one of the above blowers, measure the pressure or air flow is above or below a predetermined value by the pressure gauge or air flow meter, and measure the time during which the measured value is maintained By sequentially checking whether or not air can be sucked from each of the input port facilities, the transport pipe that is blocking is specified based on a combination of the closed transport pipe and the intake permission / non-permission condition of each of the input port facilities. A method for detecting a closed position of a refuse vacuum transport device. 2. A method for detecting a blockage position of a refuse vacuum transport device according to claim 1, wherein a combination relationship of whether or not intake of each of the inlet ports with respect to the blockage transport tube is input to a computer for all transport tubes in advance. If a blockage occurs, it is necessary to automatically and automatically check the intake availability of each inlet facility and identify the blocked transportation pipe by comparing it with the combination of intake availability that is input in advance to the computer. A method for detecting a blockage position of a refuse vacuum transport device. 3. A method for detecting a blockage position of a garbage vacuum transport device according to claim 1, wherein when a state occurs in which garbage is not sucked while using a certain garbage input facility, the garbage input port is provided. A branch pipe of a Y-joint that is distant from one inlet facility connected to the branch pipe of the Y-joint closest to the blower in the line of the transport pipe connected to one from the equipment to the blower Check if air can be sucked in one of the inlet equipment connected to the port, and check that the transport pipe between the first Y-joint where suction is not possible and the farthest Y-joint where suction is possible is The branch pipe of the Y-joint which is detected as being blocked or which is connected to the branch pipe of the Y-joint farthest from the blower in the same transport pipe line, and which is successively closer to one inlet equipment. Whether the air can be sucked in one input equipment connected to the And confirming that the transport pipe between the first Y-shaped connection that allows suction and the Y-shaped connection that is closest to the blower that cannot suction can be detected as being blocked. Closed position detection method. 4. A method for detecting a blockage position of a refuse vacuum transport device according to claim 1, wherein the arrangement of the refuse transport pipeline network and the input port equipment is displayed on a panel, and each of the input port equipment and A method of detecting a blockage position of a refuse vacuum transport device, characterized by displaying whether or not intake is possible for all of the transport pipes and identifying the blockage transport pipe according to the criteria listed below. The transport pipe that is directly connected to the inhalable inlet facility is the inhalable transport pipe. The transport pipe connected downstream of the at least one inhalable transport pipe (closer to the waste collection center) via a Y-shaped connection is an inspirable transport pipe. The area including the inhalable transport pipe is the inhalable area. The transport pipe directly connected to the non-inhalable inlet port equipment is a non-inhalable transport pipe. The transport pipe connected to the downstream side of the two non-inhalable transport pipes via a Y-shaped joint is an inhalable transport pipe. The area including the non-inhalable transport pipe is an inhalable area. It is specified that there is one transport pipe belonging to the inhalable area and connected to the inhalable area, and this is a closed transport pipe.