JPH09239209A - Apparatus for removing fine refuse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform refuse disposal after recovery by an apparatus wherein a filter fabric wound on a filter fabric roll is extended by obstructing the flow path so as to wind the filter fabric on a winding roll through a guide roll and caught fine refuse with the filter fabric is dehydrated and dried and is wound and incinerated to remove surely the fine refuse. SOLUTION: A filter fabric 4 is extended by obstructing the water path 3 in a processing tank 1 so as to wind it on a winding roll 7 from a filter fabric roll 5 through a guide roll 6. As the filter fabric 4, a woven fabric or a long net with cloth-like texture of about 0.5-2.0mm is usually used by winding it on a roll. Then, fine refuse is caught and, in order to dehydrate and dry the refuse G sticked on the filter fabric 4 face wound together with the filter fabric, cold wind or warm wind for drying is fed into a hood for drying provided by facing the filter fabric 4 face through an air duct 9. As the refuse G sticked on the filter fabric 4 and taken up is dried with air for drying and then wound up thereby, it is possible to incinerate it as it is.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fine dust removing device, and more particularly to a fine dust removing device adapted to capture fine dust with a net, dry it, and dispose of the fine dust.

[0002]

2. Description of the Related Art Conventionally, in a sewage treatment plant, dust flowing into the treatment plant has been captured by a back scratch type fine mesh bar screen and scraped off. In manufacturing this fine-mesh bar screen, the mesh width is limited to about 5 mm to 2 mm, and it is impossible to further reduce the mesh width.

[0003]

In the above-mentioned conventional fine dust removing device, the fine bar screen has a maximum width of 2 mm, and if the rake used for this is thin, it will be deformed, so the limit is about 1 mm. Moreover, in the bar screen, long and thin dust such as hair often passes through the bar screen and flows downstream so that it cannot be captured. Moreover, when the sewage treatment becomes smaller, the pump becomes smaller. However, since the size of dust is not necessarily proportional, there is a problem that the pump is clogged with fine dust such as hair flowing down from the fine mesh bar screen. The present invention solves the problems of the above-mentioned conventional fine dust removing device, and filters the sewage with a net or a filter cloth having a cross-shaped mesh of about 0.5 to 2.0 mm to obtain the net or filter cloth. It is an object of the present invention to provide a fine dust removing device capable of dewatering and drying the dust adhering to, together with a net or filter cloth, winding it, and incinerating it.

[0004]

In order to achieve the above object, a fine dust removing apparatus of the present invention comprises a treatment tank having a flow path, a filter cloth roll around which a filter cloth is wound, and a filter cloth wound around the filter cloth. It consists of a take-up roll and a guide roll arranged in the flow path of the processing tank.It blocks the flow path so that the filter cloth collected on the filter cloth roll can be taken up by the take-up roll via the guide roll. It is characterized by being stretched.

In the fine dust removing device of the present invention having the above-mentioned structure, the dust trapped in the water channel is collected together with the filter cloth having the cross-shaped mesh so that fine dust, hair and the like can be elongated. Since the dust can be reliably captured and there is no need to insert the rake teeth, the dust can be removed with the minimum necessary openings, and the dust after collection can be easily disposed.

In this case, the drying hood can be arranged so as to face the surface of the filter cloth that has captured the dust.

According to the fine dust removing device of the present invention having the above-mentioned structure, the dust adhering to the filter cloth and dried is dried with the drying air and then wound up. Therefore, it is incinerated as it is. be able to.

Further, in this case, it is possible to dispose a protective sheet roll for feeding a protective sheet covering the filter cloth which has captured the dust.

In the fine dust removing device of the present invention having the above-mentioned structure, since the protective sheet is sandwiched by the dust captured and adhered by the filter cloth and rolled together, the malodor is collected without diffusing to the surroundings. The garbage can be disposed of.

In this case, a scraper for winding up the dust trapped on the filter cloth can be provided.

In the fine dust removing device of the present invention having the above structure, the filter cloth and the dust can be separated and disposed.

In this case, it is possible to provide a control mechanism for controlling the winding operation of the filter cloth by the winding roll based on the water level in the flow path.

The fine dust removing device of the present invention having the above-mentioned structure can effectively use the filter cloth and is economical.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a fine dust removing device of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment, in which sewage or sewage is allowed to flow into the treatment tank 1 through an inflow port 11 and flow out from an outlet 12, and the width of a water channel in the tank is set to a filter cloth or The partition plate 2 is arranged along the inner bottom surface and the inner side surface of the tank so as to be slightly smaller than the width of the net so as to be in an L-shape with the central portion opened as illustrated. The partition plate 2 may be formed of a metal plate or a hard synthetic resin plate, but is made of a flexible material such as rubber or soft synthetic resin in consideration of contact with the filter cloth and watertightness. To do. The width W1 of the water channel 3 through which the sewage formed by the partition plate 2 flows is smaller than the filter cloth width W2.

Reference numeral 4 is a filter cloth or net wider than the water channel width W1, which has cross-shaped eyes and has a fine mesh width of about 0.5 to 2.0 mm, which is long. Are arranged so as to be sequentially fed into the processing tank 1 from the filter cloth roll 5 that has been collected. That is, the filter cloth roll 5 of the filter cloth 4 is rotatably supported at a position above the processing tank 1, and is rotatably installed in the processing tank 1, preferably at the bottom of the water channel and across the water channel. The filter cloth 4 is stretched over the guide roll 6 and the filter cloth surface upstream of the guide roll 6 is brought into contact with the partition plate 2 so that the filter cloth 4 is stretched so that no gap is formed between the filter cloth and the partition plate 2. Set up.

The tip end side of the filter cloth 4 is wound around a winding roll 7. This winding roll 7 is arranged above the waterway,
The filter cloth is wound by rotating the motor or the torque motor M periodically or selectively by driving. The take-up roll 7 is arranged at the position above the water channel so that the straight line connecting with the guide roll 6 is vertical or inclined so that the upper end of the straight line is on the downstream side of the water channel and the filter cloth 4 is stretched. It And the inclination of the filter cloth 4 between the two rolls 6 and 7 is
The angle is set so that the dust that has been filtered by the filter cloth and attached will not fall when the filter cloth is wound up.

Further, a water level gauge 10 is installed in the processing tank 1 so that a change in the water level in the processing tank is detected by the dust G captured by the filter cloth and the motor for the winding roll is controlled.

Further, in order to capture the dust and to dry the dust adhering to the surface of the filter cloth that is rolled up together with the filter cloth, cold air or warm air for drying is passed through the air duct 9 and the drying hood opposite to the filter cloth surface. Supply within 8 Therefore, the drying hood 8 faces the surface of the filter cloth on which the attached dust is wound as shown in the drawing, and the width of the filter cloth is as wide as possible and a required length along the winding direction so that desired drying can be performed during the winding. And is disposed at a predetermined distance from the adhering dust surface. The distance from the attached dust surface can be adjusted according to the amount of attached dust, and the drying air is discharged from this gap.

Next, the operation of the fine dust removing device of the present invention will be described. As the filter cloth 4, a long woven cloth or net having a cross-shaped mesh of about 0.5 to 2.0 mm is usually wound around a roll and used. The filter cloth 4 is wound around a filter cloth roll 5 wound on a roll, a guide roll 6 and a winding roll 7. Since the filter cloth 4 is stretched so as to block the water passage in the treatment tank, when the sewage flowing into the treatment tank flows down in the water passage, dust mixed in the sewage is filtered by the filter cloth. Then, only water is further flowed down and discharged from the outlet 12. The filter cloth 4 is stopped without being wound up during the dust filtration. The water level in the water channel changes depending on the amount of dust trapped and attached to the filter cloth. When this water level change is detected by the water level gauge 10 and a rise in the water level above a certain value is detected, the motor M for driving the winding roll is driven to wind up the filter cloth. The winding amount of this filter cloth is a predetermined length. For example, the depth of the water channel is set, or the motor is stopped by detecting that the water level in the water channel has dropped to the set water level. In this way, the winding of the filter cloth is performed intermittently.

The dust G captured by the filter cloth 4 and adhering to and rising from the filter cloth 4 has a required thickness, but most of the waste is small garbage in small-scale sewage treatment plants, and this is filtered on a winding roll. Even when wound with a cloth, the pressing force does not sufficiently dehydrate it. According to the present invention, when dust is scraped up from the water channel by winding the filter cloth, drying air is fed from the drying hood 8 opposite the dust surface attached to the filter cloth between the water surface and the winding roll. It is sprayed and the trash is dried.

By intermittently winding the filter cloth in this way, the dust adhering to the filter cloth is dried and wound up together with the filter cloth in a roll. This makes it easy to transport the filter cloth to the incinerator and incinerate it.

The second embodiment shown in FIG. 2 is the first embodiment shown in FIG.
In the embodiment, the protective sheet roll 14 is disposed adjacent to the take-up roll 7, and the dust G adhering to the filter cloth 4 is sandwiched between the filter cloth 4 by the protective sheet 13 successively fed out from the protective roll 14 and integrated. The take-up roll 7 is used for winding, whereby the bad odor emitted by dust can be suppressed. The feeding of the protective sheet 13 is carried out in synchronization with the winding of the filter cloth 4, for example, by the rotation of the winding roll 7, the protective sheet 13 is pulled and follows, and the protective sheet roll is rotated and fed out. is there.

In the third embodiment of the era shown in FIG. 3, the dust G captured and attached by the filter cloth 4 in the first embodiment is taken up from the water channel by winding the filter cloth 4, dried, and then filtered. The dust G adhering to the filter cloth 4 immediately before being taken up by the take-up roll 7 is scraped off by the scraper 20 and scraped into the dust receiver 21 to separate the filter cloth 4 and the dust G, Only the filter cloth is wound up.

[0024]

According to the fine dust removing device of the present invention, the dust captured in the water channel is collected together with the filter cloth having the cross-shaped mesh so as to collect fine dust and slender dust such as hair. Since it can be reliably captured and there is no need to insert a rake tooth, there is an advantage that dust can be removed with the minimum necessary openings and that the dust after collection can be easily disposed.

Further, according to the fine dust removing device of the present invention, since the dust attached to the filter cloth and dried is dried with the drying air and then wound up, it can be incinerated as it is. .

According to the fine dust removing device of the present invention, since the protective sheet is sandwiched by the dust captured and adhered by the filter cloth, and the dust is caught together with the dust, the collected dust is disposed without spreading the bad smell to the surroundings. Can be done.

According to the fine dust removing device of the present invention, the filter cloth and the dust can be separated and disposed of.

According to the fine dust removing device of the present invention, the filter cloth can be effectively used and it is economical.

[Brief description of drawings]

FIG. 1 shows a first embodiment of a fine dust removing device of the present invention, (A) is a vertical sectional front view, and (B) is a side view thereof.

2A and 2B show a second embodiment of the fine dust removing device of the present invention, wherein FIG. 2A is a vertical front view and FIG. 2B is a side view thereof.

3A and 3B show a third embodiment of the fine dust removing device of the present invention, wherein FIG. 3A is a vertical sectional front view and FIG. 3B is a side view thereof.

[Explanation of symbols]

 1 Treatment Tank 2 Partition Plate 3 Water Channel 4 Filter Cloth 5 Filter Cloth Roll 6 Guide Roll 7 Winding Roll 8 Drying Hood 9 Air Duct 10 Water Level Meter M Motor

Claims (5)

[Claims] 1. A processing tank having a flow path, a filter cloth roll around which a filter cloth is wound, a winding roll around which the filter cloth is wound up, and a guide roll disposed inside the flow path of the processing tank. The fine dust removing device is characterized in that the filter cloth wound up on the filter cloth roll is stretched with the flow path blocked so as to be wound up by the winding roll via the guide roll. 2. The fine dust removing device according to claim 1, wherein a drying hood is provided so as to face the surface of the filter cloth that has captured the dust. 3. The fine dust removing apparatus according to claim 1, further comprising a protective sheet roll for feeding a protective sheet that covers the filter cloth that has captured the dust. 4. The fine dust removing device according to claim 1, further comprising a scraper for winding up dust trapped on the filter cloth. 5. The fine dust removing device according to claim 1, further comprising a control mechanism for controlling the winding operation of the filter cloth by the winding roll based on the water level in the flow path. .