JPH063399B2 - Garbage weighing device - Google Patents

Description

Description: [Industrial application] The present invention relates to a dust measuring device for measuring the amount of dust at each inlet in a dust pipe collecting facility.

[Prior Art] In recent years, a waste pipeline collection facility that collects waste generated in a group of buildings in a city through a pipeline to a waste collection place has been attracting attention.

FIG. 2 is a block diagram showing a configuration of a conventional refuse pipeline collection facility, in which black arrows and white arrows respectively indicate the flow directions of dust and air.

In the figure, each building of the building group has a storage cylinder 10
2 and a storage drum 103 are provided with a dust input port 101, and each input port 101 communicates with a pipeline 106a via a storage cylinder 102 and a discharge valve 105 attached to a lower portion of the storage drum 103. . The pipe line 106a is provided with an intake valve 104 at its end and extends into the waste collection center 120.

On the other hand, in the waste collection center 120, a separator 107 that separates dust and air is installed, and the pipeline 106a is connected to this separator 107. A compactor 111 for compressing the separated waste and a container 112 for storing the compressed waste are arranged below the separator 107 (measuring means 116 will be described later), and a pipe line for air is provided from above the separator 107. 106b is pulled out, and the dust collecting means 108, the suction pump 109, and the deodorizing means 110 are arranged.

Then, each device in the waste collection center 120 and the discharge valve 105, the intake valve 103 on the building group side, the waste collection center 1
It is configured to operate by receiving a signal (signal line 15) from the control means 114 installed in the 20.

In such a waste collection facility, the dust thrown into the charging port 101 is temporarily stored in the storage cylinder 102 and the storage drum 1.
03 (discharging valve is closed). When collecting dust, the intake valve 104
Is opened and air is flowed into the pipeline by the suction pump 108, and then the discharge valve 105 is opened.

Then, the dust stored in the storage cylinder 102 and the storage drum 103 is sucked together with the air and conveyed to the separator 107 through the pipe line 106a. The dust separated from the air by the separator 107 is discharged into the compactor 111 from below the separator 107. The discharged waste is compressed here and stored in the container 112.

On the other hand, the air separated by the separator 107 is supplied to the pipeline 106b.
Through the dust collecting means 108, the suction pump 109, and the deodorizing means 110, and then is discharged.

By the way, in the above-mentioned waste pipeline collection facility, in order to collect the waste collection fee for each building, it is necessary to measure the amount of waste thrown into each input port.

There are two methods for measuring the amount of dust at each inlet: one at the inlet side and one at the collection center side.

As the weighing method at the input port, there are a method of measuring the weight of dust with a load cell installed near the input port, and a method of estimating the amount of dust by detecting the number of times of inputting dust and the number of times the storage drum is packed. .

In addition, as a measuring method at the collection center side, open the discharge valves one by one in order and store the waste in different containers for each inlet (after the collection of waste from one inlet is completed, Open the discharge valve) and measure the container 116 together
There are a method of measuring the weight in FIG. 2 and a method of measuring the weight by arranging a direct measuring means below the separator.

[Problems to be Solved by the Invention] However, in the conventional techniques as described above, the method of attaching the load cell to the input port side has a drawback that the equipment is expensive, and therefore the amount of dust cannot be reduced due to the number of inputs and the like. The method of grasping has a problem that it does not match the fee collection system because it does not measure the weight of garbage.

On the other hand, among the methods of weighing at the collection center side, the method of measuring the weight of each container is not applicable unless the container is used for secondary transportation, and the garbage from one input port is stored in the container every time. There was a problem that the container had to be replaced, and the garbage could not be collected continuously, and there was also the drawback that the weight of the garbage could not be measured accurately due to the variations in the weight of the container. .

In addition, in the method in which the waste discharged from the separator is directly measured by the weighing means, the weight of the entire day's waste can be accurately measured, but in order to measure the weight of the waste at each inlet, the As in the case where the waste is stored in the container and then weighed, the waste must be collected and measured in batches for each input port, and the efficiency of collecting and weighing the waste cannot be improved. If we try to weigh while continuously performing suction operation, it will be difficult to determine from which inlet the dust is coming, and there is a risk that the dust from different inlets will be mixed. There is a disadvantage that the cost becomes high.

The present invention has been made in view of the above points, and in a waste pipeline collecting facility, it is possible to accurately measure the amount of dust at each inlet while continuously performing suction and collection of dust. It is intended to provide a weighing device.

[Means for Solving the Problem] According to the present invention, in a waste weighing device used for a waste pipeline collecting facility, the waste is thrown into each of the throwing ports based on information on the position of the throwing port and the transport speed of the dust given in advance. In order that the collected waste arrives at the waste collection place at different time zones depending on the input ports, the calculation means for setting the collection time zone for each input port and the collection time zone set by the calculation means The above-mentioned problem is achieved by providing a discharge valve control means for controlling the opening and closing of the discharge valve and a measuring means for measuring the collected dust at the dust collecting place for each input port.

Further, in order to more efficiently collect the waste from each input port and shorten the operation time of the waste pipeline collection equipment, a detection means for detecting the continuation of the waste collected at the waste collection place, It is preferable to include adjusting means for adjusting the collection time zone set by the calculating means based on the signal from the detecting means.

[Operation] In the present invention, the suction operation of the waste pipeline collecting equipment is continuously performed, and each discharge valve is sequentially operated according to the program defined by the calculating means (the program defining the collection time zone for each input port). When opened, the refuse moves through the pipeline as one block for each inlet.

In the present invention, before collecting and measuring the waste from one input port, the next discharge valve is opened and the collection (suction) of the waste from another input port is started, but the discharge valve is opened and closed. Is controlled so that the waste from each input port arrives at the collection place at different time zones, so that the waste from different input ports will not be mixed and the waste from which input port will depend on the time of arrival. Or specified.

The above-mentioned program that determines the collection time zone is related to the position of the input port and the transportation speed of the dust given in advance (the speed at which the dust moves in the pipeline is slower than the wind speed, and the velocity depends on the shape and weight of the dust). Although it is set based on information, the estimated arrival time and final arrival timing of the garbage are estimated as the collection time zone for each loading port (the garbage with a high transportation speed arrives early and the garbage with a low transportation speed arrives late. Do)
However, it is assumed that all the waste will arrive at the collection place in the middle of the set collection time, but in the invention of item 2, it arrives at the collection place. By detecting the intermittence of waste (breaks in the waste block for each loading port), the actual transportation speed of the waste is measured, and the collection time zone of the loading port is advanced according to the measured transportation speed. (The opening and closing timing of the discharge valve can be advanced), unnecessary waiting time is saved,
Garbage is collected and weighed in a short time.

[Embodiment] FIG. 1 is a block diagram of a waste pipeline collecting facility to which a waste metering device according to an embodiment of the present invention is applied, in which black arrows and white arrows indicate the flow directions of dust and air, respectively.

In the figure, each building of the building group is provided with an inlet 1a, 1b, 1c equipped with a storage cylinder 2a, 2b and a storage drum 3, and each inlet 1a, 1b, 1c is a storage cylinder 2.
a, 2b and the discharge valve 5a, 5b, 5c attached to the lower part of the storage drum 3 are connected to the conduit 6a. At the outlets of the storage cylinders 2a and 2b and the storage drum 3,
A dust detection sensor (not shown) is provided so that the end of discharge of dust can be detected. In addition, pipeline 6
A has an intake valve 4 at its end and extends into the waste collection center 20.

On the other hand, in the waste collection center 20, a separator 7 for separating dust and air is installed, and the pipeline 6 a is connected to this separator 7. Below the separator 7, a continuous weighing type weighing means 16 in which a load cell is incorporated in a belt conveyor is arranged, and a lower portion of the weighing means 16 in the belt rotation direction is connected to a compactor 11 connected to a container 12. Has been done.

A pipe line 6b for air is drawn out from above the separator 7,
A dust collecting means 8, a suction pump 9, a deodorizing means 10 are provided in the pipe line 6b.
Are arranged.

Further, near the entrance of the separator 7 or near the connecting portion of the pipeline 6a with the separator 7, a detecting means 17 for detecting the interruption of the dust is attached. This detecting means 17 detects the presence or absence of dust by blocking the light by the dust, the sensor for detecting the presence or absence of dust by the difference in suction pressure, or the presence or absence of dust using electromagnetic waves or ultrasonic waves. It can be configured using various types of sensors such as sensors.

The above-mentioned devices in the waste collection center 20, the discharge valves 5a, 5b, 5c and the intake valve 4 on the building group side receive a signal (signal line 15) from the control means 14 installed in the waste collection center 20. Is configured to work.

In the control means 14, the input ports 1a,
Based on the information about the positions of 1b and 1c and the transportation speed of the wastes, each of the input ports 1a, 1b and 1c should be arranged so that each of the input ports 1a, 1b and 1c arrives at the waste collection place at a different time zone. Computing means 14a for setting the collection time zone to
And a calculation based on the signals from the discharge valve control means 14b that controls the opening and closing of the discharge valves 5a, 5b, 5c so as to correspond to the collection time zone set by the calculation means 14a, and the signal from the detection means 17 described above. The adjusting means 14c for adjusting the collection time zone set by the means 14a is provided.

Next, the operation of the waste pipeline collecting facility to which the waste weighing device according to this embodiment is applied will be described.

The dust introduced into the inlets 1a, 1b and 1c is temporarily stored in the storage cylinders 2a and 2b and the storage drum 3 (the discharge valves 5a, 5b and 5).
c is closed). In this embodiment, the calculation means 1
The collection time zone is set so that the waste arrives at the separator 17 in the order of the inlets 1a-1b-1c.

When the operation is started, first, the intake valve 4 is opened by a signal from the control means 14, and the suction pump 8 causes the pipelines 6a, 6
After the air is flowed into the b, the discharge valve 5a is opened by a signal from the discharge valve control means 14b, and the dust stored in the storage cylinder 2a is sucked together with the air and the separator 7 is passed through the pipe line 6. Carried in the direction of.

Then, after a predetermined time, the discharge valve control means 14b
The discharge valve 5b is opened in response to a signal from the discharge valve 5b to start sucking dust in the storage cylinder 2b, and finally, the discharge valve control means 14
The discharge valve 5c is opened by the signal from b and the dust in the storage drum 3 is sucked.

The absorbed waste moves in the pipeline 6a as one block for each input port, and first, the waste from the input port 1a arrives at the separator 17. Then, after the trash having the slowest transportation speed at the input port 1a (the final end of the trash block) arrives, the trash having the fastest transportation speed from the input port 1b (the front end of the trash block is placed at a predetermined interval. ) Arrives at the separator 17. Similarly, after the waste from the inlet 1b has arrived, the waste from the inlet 1c arrives at a predetermined interval. The break of the dust block from each charging port is detected by the detecting means 17, and the detection signal is adjusted by the adjusting means 14c.
It will be sent to (described later).

The waste carried to the separator 7 is separated from the air here and discharged downward, and falls on the rotating conveyor of the weighing means 16, and the weight is continuously measured. That is, the integrated value of the weight of the dust dropped on the conveyor within the set collection time is detected as the weight of the dust from the input port.
After weighing, the waste is discharged into the compactor 11, where it is compressed and stored in the container 12. At this time, since the dust is stored in the container 12 after its weight is measured at each loading port, it is not necessary to replace the container 12 until it becomes full. Further, it is not always necessary to store it in the container 12.

On the other hand, the air separated by the separator 7 is discharged after passing through the dust collecting means 8, the suction pump 9, and the deodorizing means 10 to be cleaned.

Next, the operation of the adjusting means 14c will be described. The adjusting means 14c calculates the maximum transport speed and the minimum transport speed of the actual dust from the detection signal of the detecting means 17, and adjusts the preset collection time zone so as to match the actual transport speed of the dust. That is, if the measured maximum transportation speed of waste is slower than the assumed speed and the measured minimum transportation speed of waste is faster than the assumed speed, the collection time zone of the inlet may be set shorter. Yes, the collection time zone is advanced.

The adjustment of the collection time zone is not always performed every time when the dust break is detected by the detection means 17, and normally, the data regarding the actually measured transportation time is accumulated and the adjustment is performed based on the average value. Be done. At this time, if there is a specific tendency in the type of waste for each input port (for example, one input port is made of paper only, and another input port has a lot of garbage) It is good to take the average of time. Further, the detecting means 17 is mounted not only near the inlet of the separator 7 but also near the outlet of the separator 7 and the outlet of the measuring means 16 so that the passage time of the waste separator 7 and the measuring means 16 is increased. May be measured, and these measurement data may also be used for adjusting the collection time.

In this way, the suction operation time can be further shortened by actually measuring the transportation speed of the dust from the signal of the detection means 17 and adjusting the collection time zone of each input port accordingly.

In addition, although the conveyor type was used as the measuring means 16 in the above-mentioned embodiment, the measuring means itself in the present invention is not particularly limited, and there is a trouble of exchanging the container, a variation in the weight of the container itself, and the like. If it doesn't matter,
The waste discharged from the separator 7 may be received in different containers and the container may be measured. Further, in the above, the measuring means 16 is installed in the lower part of the separator 7, but the installation place is not particularly limited, and a continuous discharging device (compresses waste in blocks and discharges it one after another).
It may be installed in a discharge part such as.

In addition, the measurement of dust by the weighing device of the present invention does not necessarily have to be performed every time when the dust is collected. In some cases, the measurement is performed once a week, and the weight of the dust and the claws on the storage drum are measured. 1 for each inlet from the ratio with the number of times
You may try to analogize the weight of garbage for a month.

[Effects of the Invention] As described above, in the present invention, the collection time zone is set for each input port so that the waste input into each input port arrives at the waste collection place at different time zones. Since the opening and closing of the discharge valve of each input port is controlled based on this, it is possible to accurately measure the waste for each input port one after another while continuously performing the suction operation of the waste pipe collecting equipment.

Further, in the present invention, since the break of the dust carried to the collection place is detected and the collection time zone set at the beginning is adjusted, unnecessary waiting time is eliminated, and the waste collection / measurement time can be shortened. Can be planned.

If such a waste weighing device is used, the weight of the waste collected in the waste pipeline collection facility can be accurately grasped for each storage device, and in order to prepare a fine collection system of the collection fee in the waste pipeline collection facility. The present invention is very useful.

[Brief description of drawings]

FIG. 1 is a block diagram for explaining a waste pipeline collecting facility to which a waste weighing device according to an embodiment of the present invention is applied, and FIG. 2 is a block diagram showing a conventional example. [Explanation of symbols for main parts] 1a, 1b, 1c ... Inlet 2a, 2b …… Storage cylinder 3 ………… Storage drum 4 ………… Intake valve 5a, 5b, 5c… Discharge valve 6a, 6b …… Line 7 ………… Separator 14 ………… Control means 14a ………… Computing means 14b ………… Discharge valve control means 14c ………… Adjusting means 15 ………… Signal line 16 ………… … Weighing means 17 ………… Detecting means

Claims (2)

[Claims] 1. A pipe line that connects a plurality of input ports and a waste collection place through discharge valves, respectively, and sucks and collects the waste that has been put into each input port and temporarily stored in the waste collection place. A waste metering device used in a waste pipeline collection facility, in which the waste that has been input to each input port is different based on the information on the position of the input port and the transport speed of the waste that has been given in advance. Calculation means for setting a collection time zone for each inlet so that the waste arrives at the waste collection place in a time zone, and discharge for controlling opening / closing of the discharge valve so as to correspond to the collection time zone set by the calculation means A waste weighing device comprising: a valve control means; and a weighing means for weighing the waste collected at the waste collection place for each input port. 2. A detection means for detecting the interruption of the dust collected in the waste collection place, and an adjusting means for adjusting the collection time zone set by the computing means based on a signal from the detection means. The waste weighing device according to claim 1, further comprising: