JP2008280804A - Dust collection facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dust collection facility which attains energy saving by reducing the operation frequency of a related device of the latter stage without changing the operation frequency of an automatic dust collector. <P>SOLUTION: The dust collection facility comprises the automatic dust collector 1 which captures and scrapes up dregs from water, and a belt conveyor 2 which carries the dregs scraped up by the collector 1. A hopper 3 for temporarily storing the scraped dregs S is provided in a shoot 15 of the collector 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a dust removal facility such as a sewage treatment plant, and more particularly, to a dust removal facility designed to save energy by reducing the number of operations of related devices in the subsequent stage without changing the number of operations of an automatic dust remover. .

  As shown in FIGS. 3 to 4, for example, an automatic dust remover 1 that captures the residue S and lifts it up from the water in the sand basin of the sewage treatment plant or the pumping station. Belt conveyor 2 for transporting the fried residue S, a washing machine for washing the conveyed residue S, a dewatering device for dewatering the washed residue S, and a residue hopper for storing the dehydrated residue S And.

The automatic dust remover 1 is captured by the bar screen 11 by driving a bar screen 11 having a required mesh width disposed obliquely with respect to the water surface so as to block a water channel, and a chain 12 along the bar screen 11. A rake device 14 is provided for scraping and removing the residue S with a rake 13.
The residue S scraped up by the automatic dust remover 1 is supplied to the belt conveyor 2 through the chute 15 as needed.

In sewage treatment plants and the like, these devices are automatically operated, and when an automatic dust remover is operated, all related devices such as a transport / washing facility in the subsequent stage are operated.
Examples of the operation timing of the automatic dust remover include a constant interval by a timer, interlocking with the operation of the pump, or when the water level difference before and after the screen reaches a certain amount.
However, in all cases, the amount of residue in the sewage in fine weather is very small, so the automatic dust remover lifts the amount of residue, and related devices such as transport, washing, and dehydration are inherently Operation is performed at a low load relative to the processing capacity.

For this reason, the power consumption of the device related to the removal of screen residue is little due to the load of the screen, which is the original object, and is mostly due to its own weight and frictional resistance, which wastes energy. Yes.
Therefore, as a means of energy saving, a method of reducing the number of operations of the automatic dust remover can be considered, but if the number of operations of the automatic dust remover is reduced and the operation interval is lengthened, the screen will be clogged and the water level difference before and after the screen will be large. Become. For this reason, it is difficult to reduce the number of operations of the automatic dust remover.

  In view of the problems of the conventional dust removal equipment, the present invention provides a dust removal equipment that saves energy by reducing the number of operations of related devices in the subsequent stage without changing the number of operations of the automatic dust remover. For the purpose.

  In order to achieve the above object, the dust removal equipment of the present invention is a dust removal equipment comprising an automatic dust remover that captures and lifts up residue from the water, and a transport device that transports the residue removed by the automatic dust remover. The chute part of the automatic dust remover is provided with a hopper for temporarily storing the scraped residue.

  In this case, the hopper can be provided with an automatic loading means for detecting the weight or height of the accumulated residue and opening it when the predetermined amount is reached and loading the residue into the conveying device.

  According to the dust removal equipment of the present invention, in the dust removal equipment provided with the automatic dust remover that captures and lifts the residue from the water, and the transport device that transports the residue removed by the automatic dust remover, the automatic dust remover Since the chute is provided with a hopper that temporarily stores the scraped residue, the related devices such as transport, washing, and dewatering are stopped until a predetermined amount of residue is collected in the hopper even during operation of the automatic dust remover. In addition, when the residue reaches a predetermined amount, the hopper is opened and put into the transfer device, and related devices such as transfer, washing and dehydration can be operated, thereby reducing the number of operations of the related device, Without increasing the screen water level difference, it is possible to save energy in the dust removal equipment and extend the life of the related equipment in the subsequent stage.

  In this case, the hopper can automatically open and close the hopper by detecting the weight or height of the accumulated residue and providing an automatic loading means that opens when the predetermined amount is reached and loads the residue into the conveying device. The operation of the related devices can be automatically controlled by linking the related devices such as transport, cleaning, and dewatering with the opening and closing of the hopper.

  Hereinafter, embodiments of the dust removal equipment of the present invention will be described with reference to the drawings.

1 to 2 show an embodiment of the dust removal equipment of the present invention.
This dust removal equipment includes an automatic dust remover 1 that captures and lifts up residue from the water, a belt conveyor 2 that conveys the residue S that has been lifted up by the automatic dust remover 1, and a washer that cleans the residue S (Not shown) and a dehydrator (not shown) for washing and dewatering the residue S.
In this dust removal equipment, the chute 15 of the automatic dust remover 1 is provided with a hopper 3 for temporarily storing the scraped residue S.

The automatic dust remover 1 drives the chain 12 along the bar screen 11 having a required mesh width disposed at a predetermined angle with respect to the water surface so as to block the water channel, And a rake device 14 that scrapes and removes the residue S captured by the bar screen 11 with the rake 13.
Note that the automatic dust remover 1 is not limited to the above-described configuration, and for example, a configuration in which dust is removed by making the screen movable is also possible.
In the present embodiment, the belt conveyor 2 is used as a transport device, but a screw conveyor or the like can also be employed.

The hopper 3 automatically detects the height and weight of the residue S stored by the level sensor 31 and a load meter (not shown), and opens the bottom when the amount reaches a predetermined amount, and puts the residue S into the belt conveyor 2. The charging means is provided, and the hopper 3 can be automatically opened and closed by the electric cylinder 32.
Related devices such as the belt conveyor 2, the washing machine, and the dehydrator are interlocked with the automatic feeding means of the hopper 3, stop while the hopper 3 is closed, and automatically operate when the hopper 3 opens. Start.
Thereby, without changing the frequency | count of operation of the automatic dust remover 1, the frequency | count of operation of a related apparatus is reduced and energy saving is aimed at.

Next, the operation of the dust removal equipment of this embodiment will be described.
The residue S lifted up by the automatic dust remover 1 is temporarily stored in the hopper 3 provided in the chute portion 15 of the automatic dust remover 1, and it is detected that the storage amount in the hopper 3 becomes a predetermined amount. Sometimes, the hopper 3 is opened and stored, and the residue S is put into the belt conveyor 2.

In this case, by making the amount of the residue S stored in the hopper 3 equal to the residue processing capacity of related devices such as a washing machine and a dehydrator, it is possible to operate with an appropriate load.
Further, the amount of residue S stored in the hopper 3 can be determined by detecting the height with the level sensor 31 or detecting the weight with a load meter.
And simultaneously with opening the hopper 3, related apparatuses, such as the belt conveyor 2, a washing machine, and a dehydrator, are operated.

  Thus, according to the dust removal equipment of the present embodiment, the automatic dust remover 1 that captures the residue S and lifts it up from the water, and the belt conveyor 2 that conveys the residue S swept up by the automatic dust remover 1 are provided. In the dust removal equipment, the chute 15 of the automatic dust remover 1 is provided with the hopper 3 for temporarily storing the scraped residue S, so that a predetermined amount of residue S is accumulated in the hopper 3 even during the operation of the automatic dust remover 1. Stops the related devices such as transport, washing, dehydration, etc., and when the residue S reaches a predetermined amount, the hopper 3 is opened and put into the belt conveyor 2, and the related devices such as transport, washing, dewatering, etc. Thus, it is possible to reduce the number of times the related apparatus is operated, and to save energy in the dust removal equipment and extend the life of the related apparatus in the subsequent stage without increasing the screen water level difference.

  In this case, the hopper 3 is provided with an automatic loading means that detects the weight or height of the stored residue S and opens it to the belt conveyor 2 when it reaches a predetermined amount. Can be automatically opened and closed, and the operation of the related devices can be automatically controlled by linking the related devices such as transport, washing, and dehydrating with the opening and closing of the hopper 3.

  As mentioned above, although the dust removal equipment of the present invention was explained based on the example, the present invention is not limited to the composition indicated in the above-mentioned example, and changes the composition suitably in the range which does not deviate from the meaning. be able to.

  The dust removal equipment of the present invention has the characteristic of reducing the number of operations of related devices such as a transport device, a washing machine, and a dehydrator without changing the number of operations of the automatic dust remover. It can be used widely and suitably for the use of dust removal equipment for extending the service life of.

It is sectional drawing which shows one Example of the dust removal equipment of this invention. It is sectional drawing which shows the state which opened the hopper of the dust removal equipment. It is a flowchart which shows an example of the dust removal equipment of a residue. It is sectional drawing which shows the conventional dust removal equipment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic dust remover 11 Bar screen 12 Chain 13 Rake 14 Rake apparatus 15 Chute part 2 Belt conveyor 3 Hopper 31 Level sensor 32 Electric cylinder

Claims (2)

  In a dust removal facility equipped with an automatic dust remover that traps and lifts up residue from the water, and a transport device that transports the residue removed by the automatic dust remover Dust removal equipment provided with a hopper for temporarily storing   2. The dust removing device according to claim 1, wherein the hopper includes automatic loading means for detecting the weight or height of the accumulated residue and opening the residue to the conveying device when a predetermined amount is reached. Facility.

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