JPH09316857A - Dust catching and drying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate post treatment such as incineration or the like by disposing a dust catcher in a treatment tank and a transfer machine having a drying means close to the dust catcher. SOLUTION: A driving speed of a rake device 42, a full length of a bar screen 71 and a blowing amount of a drier blower 8 are set such that drying is performed to reach a water content set for garbage when scooped up garbage is transferred from the end of the screen 71 to another end. Then, when contaminated water passed through flow-in pipe 2 into a treating tank 1 is passed through a current plate 5, relatively small refuse obtained by eliminating large rubbish such as wood chips is supplied down from the hole of the current plate 5 together with the contaminated water to a dust catcher 4. Then, the refuse in the contaminated water is captured by a bar screen 41, scooped up by the rake device 42, passed through a shoot 43 and transferred to the screen 71 of a transfer machine 7. The refuse is then dried in a duct 9 blown by a blower 8, discharged from the end part of the screen 71 into a refuse box B and, by automatically drying the refuse, post treatment such as incineration is facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dewatering / dehydrating apparatus, and in particular, dust having a high water content scraped up by a dust remover is dried to a predetermined water content while being transferred by a transfer means, and is handled at a later stage. The present invention relates to a dust removing dehydrator that can be easily incinerated.

[0002]

2. Description of the Related Art Conventionally, in a sewage treatment plant, dust flowing into the treatment plant is captured by a bar screen equipped with a back scraping rake, and is scraped off by running the rake.
However, since the scrap dust has a high water content, it cannot be incinerated as it is. For this reason, conventionally, the scrap dust is dehydrated by a mechanical dehydrator such as a screen press so that the required water content is obtained.

[0003]

In the above conventional dust removing and dehydrating apparatus, since the dust captured by the bar screen is raked up by a rake and dehydrated by a mechanical dehydrator such as a screw press, the garbage in the garbage is removed by the machine. There was a problem that it was crushed by the static pressure and flows out together with water from the water draining hole of the dehydrator, and on the other hand, if the dehydration pressure is weak, it cannot be dehydrated sufficiently. The present invention solves the problems of the conventional dust removing dehydrator,
Provided is a dust removal dehydrator capable of directly transferring scraped-up waste having a high water content to a transfer device driven at a slow speed, and dehydrating it to a water content that can be easily treated after incineration and the like without being mixed into the desorbed water. The purpose is to

[0004]

In order to achieve the above object, the dust removing and dehydrating apparatus of the present invention captures and scrapes up dust contained in sewage flowing into the treatment tank through an inflow pipe in the treatment tank, It is characterized in that a dust remover for removing is disposed and a transfer device provided with a drying means is disposed adjacent to the dust remover.

In the dust removing and dehydrating apparatus of the present invention having the above-mentioned structure, the dust scraped up by the dust remover is continuously transferred directly to the transfer machine, and the scraping and transfer can be performed continuously. Since it is automatically dried on the way to the outlet, post-treatment such as incineration becomes easy.

In this case, the dust remover and the transfer device can be individually driven.

In the dust removing and dehydrating apparatus of the present invention having the above structure, the driving speeds of the dust remover and the transfer machine can be changed so that the drying of the fried refuse can be performed during the transfer.

Further, in this case, the transfer device can be driven at a slower speed than the dust remover.

In the dust removing and dehydrating apparatus of the present invention having the above-mentioned structure, even if the scraped dust having a high water content is supplied, the transfer machine is driven at a slower speed than the dust remover.
During the transfer, it is possible to simultaneously perform drying to a predetermined water content.

Furthermore, in this case, the screen of the dust remover and the screen of the transfer machine which are adjacent to each other can be formed in series.

In the dust removing and dehydrating apparatus of the present invention having the above-mentioned structure, since the screen of the dust remover and the transfer machine are integrally connected and arranged, there is no spillage when the scraped dust is transferred from the dust remover to the transfer machine. , The entire amount of scraped dust can be reliably sent to the transfer machine.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a dust removing dehydrator according to the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 is a treatment tank having a required shape and volume set according to the treatment capacity. An inflow pipe 2 is arranged at one end of the treatment tank 1, and waste water is introduced into the treatment tank through the inflow pipe 2. Alternatively, the sewage is allowed to flow in, and the discharge port 3 is provided at the other end of the treatment tank 1 so that the treated water after dust removal flows out of the treatment tank 1 so that a water flow naturally occurs in the treatment tank. The water channel 11 is formed so that.

A dust remover 4 is arranged in the water channel 11 of the treatment tank 1 in the width direction of the water channel in the tank. The dust remover 4 is a bar screen 41 having a manufacturable required mesh width, which is arranged so as to block a water channel in a treatment tank and arranged at a predetermined angle with respect to the water surface, and the bar screen 41. The rake device 42 is driven along with a predetermined speed and scoops up and removes the dust captured by the bar screen 41, and is adjustable at a predetermined speed, preferably in response to a water level change. Driven.

Further, in the processing tank 1, a dust remover 4 and an inflow pipe 2 are provided.
A rectifying plate 5 is disposed between the rectifying plate 5 and the inflow pipe 2, and when sewage flows through the downflow holes 5H formed in a large number of the rectifying plate 5, the sewage is rectified and there is no slowing of the flow velocity in the entire water channel. A laminar flow having a uniform flow is made to flow down to the dust remover 4.

In this case, a weir plate is provided on the downstream side of the dust remover so that the water level of the water channel is maintained at a predetermined level so that the dust in the dirty water can be captured by the bar screen 41 and scraped up by the rake 42 and discharged. 6 is provided. And the weir plate 7 arranged on the downstream side of this dust remover determines its height such that the water level at the dust remover position is higher than the minimum water level at which the dust remover can operate, and this is generally a straightening plate. It is lower.

Further, a transfer machine 7 is arranged in the dust remover 4 as close as possible so that the scrap dust does not drop downward. This transfer machine 7 is configured by disposing a back scraping type rake device 72 on a bar screen 71 on which scraped dust can be placed and transferred, and the transfer machine is housed in a duct 9.

As shown in detail in FIG. 1, the bar screen 71 of the transfer device 7 is arranged so as to overlap below the chute 43 of the dust remover 4, so that the dust scraped up by the dust remover 4 is surely removed. So that it can be moved to the transfer machine 7 side,
Arrange the rake of the dust remover and the rake of the transfer machine so that they do not interfere with each other. And the rake device 7 of this transfer device 7
2 is driven so as to be slower than the driving speed of the rake device 42 of the dust remover 4, and this driving speed performs necessary drying when scraping dust is transferred from the front end to the rear end of the bar screen 71. In this way, it is determined appropriately whether to drive at slow speed or intermittent operation. The driving speed of the rake device 72, the total length of the bar screen 71, and the amount of air blown by the drying blower are such that when the scraped dust is transferred from one end of the bar screen to the other, the set water content is dried. Shall be specified in.

The duct 9 is arranged so as to cover the whole of the transfer unit 7, and is provided with a drying blower 8. The louver 10 is arranged so that the air blown from the drying blower 8 is sent over almost the entire length of the transfer device 7, and the heater 9H is provided as necessary in front of the drying blower in order to shorten the drying time. Sometimes placed in.

Air is blown into the duct from the drying blower 8 and is sprayed onto the scraps on the transporter to dry it.
The air is discharged from an exhaust port 9a provided in a part of the duct 9, and the lower bottom part of the duct 9 is tilted to be scraped up from the bar screen on the transfer machine. Guide it to the trash box B.

In the embodiment shown in FIG. 1, the transfer machine 7 is arranged horizontally, but in the embodiment shown in FIG. 3, the transfer machine 7 is inclined so that the base end side is low and the end side is high. The configuration is the same as in FIG.

Further, as shown in FIG. 4, the dust remover 4 and the transfer device 7 are integrated.

In the embodiment shown in FIGS. 5 to 7, as in FIG. 4, the dust remover and the bar screen of the transfer unit are integrally connected. This series of bar screens 41 becomes as shown in FIG. 5 or as shown in FIG. 6 depending on the arrangement method of the transfer device with respect to the dust remover, and this shape is bent according to the arrangement method of both machines as shown in FIG. To form. Although the bar screens are integrally bent and connected in series, the rake devices 42 and 72 are independent and are driven at a predetermined driving speed. It surely prevents dust from falling.

Next, the operation of the fine dust removing device of the present invention will be described. When the sewage that has flowed into the treatment tank 1 through the inflow pipe 2 passes through the rectifying plate 5, large dust mixed in this sewage is prevented from flowing down by the rectifying plate, and the sewage is between the rectifying plate and the inflow pipe. The wastewater is temporarily stored in the treatment tank and is scraped up and discharged at the appropriate time. Reach the dust remover 4. In this case, the flowing water is rectified by the action of the rectifying plate, and when it reaches the screen of the fine dust remover, it has a uniform flow over almost the entire width of the water channel. Then, wood chips, dirt, and other debris in the dirty water are captured by the bar screen 41 and scraped up by the rake device 42.

The scraped dust is transferred from the bar screen 42 through the chute 43 onto the bar screen 71 of the transfer device 7, and the rake device 72 moves inside the duct 9 blown by the drying blower 8. When it is transferred, it is dried as desired, and is discharged into the trash box B from the end of the bar screen 72.

[0025]

According to the dust removing and dehydrating apparatus of the present invention, the dust scraped up by the dust remover is continuously transferred directly to the transfer device,
It is possible to continuously scrape and transfer, and since it is automatically dried on the way to the exit with the transfer machine,
Post-processing such as incineration becomes easy.

According to the dust removing / dewatering apparatus of the present invention,
Since the drive speeds of the dust remover and the transfer device can be changed, it is possible to perform drying during the transfer of the scraped trash.

According to the dust removing / dewatering apparatus of the present invention,
Even if scraped dust having a high water content is supplied, the transporter is driven at a slower speed than the dust remover, so that it is possible to easily perform drying during the transport at the same time.

Further, according to the dust removing / dewatering apparatus of the present invention, since the screens of the dust remover and the transfer machine are integrally connected and arranged, spillage of scraped-up dust is prevented when the dust is transferred from the dust remover to the transfer machine. The entire amount of scraped garbage can be reliably sent to the transfer machine.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing a first embodiment of a dust removing dehydrator of the present invention.

FIG. 2 is a plan view of the dust removing dehydrator of the present invention.

FIG. 3 is a vertical sectional front view showing a second embodiment of the dust removing dehydrator of the present invention.

FIG. 4 shows a third embodiment of the dust removing dehydrator of the present invention,
(A) is a vertical sectional front view, and (B) is a side view thereof.

FIG. 5 is a vertical sectional front view showing a second embodiment of the present invention.

FIG. 6 is a longitudinal sectional front view showing a third embodiment of the present invention.

FIG. 7 is an explanatory diagram of bar screens having different shapes.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Processing tank 2 Inflow pipe 3 Outlet 4 Dust remover 41 Bar screen 42 Rake device 5 Rectifier plate 6 Weir plate 7 Transfer device 71 Bar screen 72 Back scratch type rake device 8 Drying fan 9 Duct

Claims (4)

[Claims] 1. A dust remover for trapping, scraping up and removing dust contained in sewage flowing into the treatment tank through an inflow pipe is provided in the treatment tank, and a drying means is provided adjacent to the dust remover. A dewatering / dewatering device, which is characterized in that a transfer device provided with is disposed. 2. The dust removing dehydrator according to claim 1, wherein the dust remover and the transfer device are individually driven. 3. The dust removing dehydrator according to claim 2, wherein the transfer device is driven at a speed slower than that of the dust removing device. 4. The dust removing dehydrator according to claim 1, wherein the screen of the dust remover and the screen of the transfer device are formed in series.