JPH0721177B2 - Integrated screen type foreign matter treatment device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen type foreign matter treatment device for treating waste water provided in a water channel, and more specifically, a screen type foreign matter equipped with a water discharge device for washing foreign substances and a dewatering device. Regarding a processing device.

[0002]

2. Description of the Related Art In a conventional screen type foreign matter treatment device, the foreign matter remaining on the screen is scooped by a rake of a scraping device, and the foreign matter picked up by the rake is carried out while being dehydrated. Has become.

However, when the foreign substances scooped up by the rake, that is, the residue, are treated, it is possible that undesired foreign matter is contained in the residue because of the hygiene of the operator and the obstruction of the post-treatment. is there. In particular, if unsanitary filth is mixed in the residue, it seriously hinders the operation of the processing device.

If these foreign substances are dehydrated by the carry-out device, it is difficult to remove them even by washing with water in the subsequent step, and there is a problem that they cannot be removed even with pressurized water.

Particularly, in the case of small-scale sewage, handling of screen residue is often done by hand. In such a case, there is a prior art example of cleaning the screen residue on the soot, but it is unhygienic. Is. And there is no example of the prior art in which cleaning and dehydration are integrated.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a screen type foreign matter treatment apparatus capable of being washed and removed from a carry-out apparatus so that foreign matter which is not desirable for post-treatment does not remain in the residue. There is.

[0007]

In order to solve the above-mentioned problems, an integrated screen type foreign matter treatment device according to the present invention is composed of a plurality of annular plates for removing foreign matters from a fluid. A screen in which an annular slit extending from the inflowing upstream surface to the outflowing downstream surface is formed between the annular plates, and the fluid flows out through the slit and contaminants in the fluid are left on the upstream surface. , A scraping device for scraping up the contaminants remaining on the upstream surface of the screen, a scraper device provided for scraping off the contaminants on the scraping device, and a screen for removing the contaminants from the screen. In a screen type foreign matter treatment device having an extending transport device, water is released to the foreign substances that have entered the transport device, and the released water passes through the slits and the downstream surface of the screen. And a dewatering device for performing a water discharge device which is adapted to flow, dehydration of contaminants to be conveyed by the conveying device.

Further, it is possible to provide a water discharge device for discharging water to the contaminants on the scraping device while the scraping device scrapes up the contaminants.

Further, the conveying device may be formed by a screw conveyor, and the screw conveyor and the scraping device may rotate coaxially.

[0010]

In the contaminant treatment device having the screen configured as described above, it is possible to sanitarily dispose by washing and dehydrating the undesired residue in the transport device in the post-treatment and packing it in the vinyl bag or the container. Can be hermetically sealed. That is, a work of breaking up soft waste such as a dung lump by discharging water to wash and remove it from impurities is performed in the screen, and the collapsed soft waste flows out from the slit of the screen. The washed contaminants are dehydrated while being transported by the transport device.
The dehydrated water can flow back into the screen and out through the slit. Since this work is performed in the integrated device, it is possible to prevent the scattering of dirty water and the emission of offensive odors.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of FIGS. 1 and 2 will be described with reference to the drawings. FIG. 1 shows a screen type contaminant for removing contaminants from a fluid such as wastewater flowing in a waterway in the direction of arrow A. A material handling device is shown.

In the screen type foreign matter treating apparatus, a cylinder jacket-like screen 10 is partially submerged in water and is inclinedly arranged. In this embodiment, the screen 10
Is composed of a large number of annular plate members 12 that are arranged stationary so as to form an annular slit. When the fluid passes through the slit in the direction from the upstream surface to the downstream surface, impurities are left on the upstream surface of the annular plate member 12.

A rotary scraping device 14 is provided in the screen 10, and a rake 14a at the tip of the scraping device 14 can scrape up the impurities remaining on the upstream surface of the screen 10.

A scraper device 22 is provided above the screen 10 and the rake 10a is provided on the screen 10.
When it comes to the upper part of the, the residue on the rake 14a (contaminants drawn from the fluid) is scraped off.

Furthermore, in order to remove the residue, the screen 1
The transport device 18 extends from the inside of 0 to the dumping position 18a. The conveyor 18 includes a screw conveyor 20.
Thus, the drive device 20a is rotated to convey the residue from the screen 10 to the dump chute 18a and compress and dehydrate it. The residue thus compressed and dehydrated is stored in a container (not shown) or the like from the dump chute 18a and is directed to post-treatment. On the other hand, the fluid generated by the dehydration appropriately flows downward along the transport device 18 and is returned to the water channel.

The transfer device 18 has a hopper 24 at its lower end. In this embodiment, below the scraper device 22, there is a hopper 24, and the scraper device 2
It is designed to receive the scraps scraped off in 2.

The scraper device 22 includes a water discharge device 22a.
Is provided on the rake 14a on the hopper 24.
By discharging with high-pressure water of ² kg / cm ^2, the residue on the rake 14a can be dropped into the hopper 24 and at the same time, the residue can be washed. In this way, the residue is carried out from the inside of the screen 10 as described above while being cleaned by the screw conveyor 20 extending through the hopper 24.

In contrast to the provision of the water discharge device 22a, in the present embodiment, the transport device 18 for carrying out contaminants from the screen 12 is water permeable at least at the lower end portion. That is, a drain hole may be provided in the lower portion of the hopper 24, or the hopper may be formed by a punch metal member. As a result, the residue washing water from the water discharger 22a is dropped into the water channel. In addition, the hopper 24
May have a screen shape or a mesh shape. Specifically, as shown in FIG. 3, a plurality of elongated plate members may be arranged to form the hopper 24. As a result, the water from the water discharger 22a will not flow into the hopper 24 and will flow down into the water channel.
When 0 receives residue from the rake 14a, cleaning of residue is enhanced.

Further, in the present embodiment, while the rake 14a of the scraping device 14 scrapes up foreign matters, the rake 14a.
Is provided with a water discharge device 26 that discharges high-pressure water of 1 to ² Kg / cm ² . The water discharge device 26 is the water discharge device 22.
Apart from a and the hopper 24, this water falls directly into the waterway. Thus, the residue can be cleaned even while the rake 14a is rising.

Thus, the cleaning performed when the residue is on the rake 14a or when the residue is in the hopper 24 is extremely effective for cleaning foreign matters. This is because if the residue is compressed as the screw conveyor 20 moves up, it becomes difficult to remove foreign matter by washing.

FIG. 4 shows another embodiment of the screw conveyor 20 and the dehydrator 30. Screw conveyor 20
Has its pitch decreasing at the top,
As a result, the residue is dehydrated. The dehydration device 30 has a duct 32 and a large number of holes 34 formed in the wall of the transfer device 18.
And the drain means 36, the water through the hole 34 duct 3
2 and is discharged from the drain means 36.

FIG. 5 shows an embodiment in which the waste water in the hopper 24 is washed by the water discharge device 26. The screw conveyor 20 is shown in phantom.

Having described the preferred embodiment of the invention,
It goes without saying that modifications are possible within the scope of the present invention.
For example, the present invention can be applied not only to an annular screen but also to a plate-shaped screen.

[0024]

Industrial Applicability When the wastewater is treated by the foreign matter treating apparatus having the screen configured as described above, the foreign matter which is not preferable for the post-treatment is washed and removed by washing with water, and the foreign matter scraped off, that is, the residue. After-treatment becomes easy and
Since unsanitary impurities are removed, sanitary treatment does not hinder sanitary treatment.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of an entire screen type foreign matter treatment device according to an embodiment of the present invention.

FIG. 2 is a front view of the main part of the screen type foreign matter treatment device according to the embodiment of the present invention.

FIG. 3 is a perspective view showing a water-permeable hopper used in the screen type foreign matter treatment apparatus according to the embodiment of the present invention.

FIG. 4 is a schematic cross-sectional view of a screen type foreign matter treatment device according to another embodiment of the present invention.

5 is a partially omitted cross-sectional schematic view taken along the line AA of FIG.
A water discharge device is shown.

[Explanation of symbols]

 10 Screen 14 Scraping Device 14a Rake 18 Conveying Device 20 Screw Conveyor 20a Driving Device 22a Water Discharging Device 24 Hopper 26 Water Discharging Device 30 Dewatering Device 32 Duct 34 Hole 36 Drain Means

Claims (3)

[Claims] 1. In order to remove contaminants from a fluid, an annular slit formed between a plurality of annular plates and extending from an upstream surface into which the fluid flows into a downstream surface into which the fluid flows out is formed between the annular plates. Flow through the slits and the contaminants in the fluid remain on the upstream surface, a scraping device for scraping up the contaminants remaining on the upstream surface of the screen, and the contaminants on the scraping device. In a screen type foreign matter treatment device having a scraper device provided to scrape off an object and a carrying device extending into the screen to carry out the foreign matter from the screen, with respect to the foreign matter entering the carrying device Equipped with a water discharger that discharges water and allows the discharged water to flow out to the downstream surface side of the screen through a slit, and a dehydrator that dehydrates contaminants conveyed in the conveyor. Integrated-screen contaminants processing apparatus. 2. The integrated screen type foreign matter treatment device according to claim 1, further comprising a water discharge device for discharging water to the foreign matter on the scraping device while the scraping device scrapes up the foreign matter. 3. The integrated screen type foreign matter treatment device according to claim 1, wherein the conveying device is formed of a screw conveyor, and the screw conveyor and the scraping device rotate coaxially.