JPS62133207A - Automatic dust remover - Google Patents

Abstract

PURPOSE:To enable water to be treated continuously for a long time with the reproduction of filtering cloth sheets, without stopping the treatment of the water, by forming the filtering cloth sheets in the form of an endless belt. CONSTITUTION:A hollow rotary chamber 1 having the inlet 9 of raw water and rotated and driven by a prime mover 10 is set, and between pulleys 4 arranged on the side wall 2 of the rotary chamber 1, a plurality of endless-belt- formed filtering cloth sheets 3 rounding on the outer and inner peripheries of the side wall 2 are arranged. Also, a plurality of blades inclined and retained on the filtering cloth sheets 3, and the outlets 6 of filtered liquid through the inner periphery of the filtering cloth sheets 3 are arranged. Also, a dust- removing mechanism 7 scraping away residue from the filtering cloth sheets 3, and a drain 8 discharging the residue are arranged. As a result, water can be treated efficiently and continuously for a long time by a miniature apparatus.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" This invention relates to an automatic dust removal device that can be suitably used for water treatment in rivers, sandy areas, etc.

``Conventional technology'' Conventionally, dust removal equipment has been used for water treatment in rivers, settling ponds, etc.

■ A screen is installed in the water gate that allows only water to pass through, and a rake that moves up and down on the screen surface scrapes up and discharges the debris captured by the screen. ■ A rotating screen is installed in the water gate, and the debris captured on the screen surface is removed. In some cases, the screen was rotated, scraped off with a scraper, etc. at a different position, and then discharged.

``Problems to be Solved by the Invention'' However, all of these methods have the drawback of poor filtering efficiency for fine dust because they use a coarse screen such as a bar screen.

Therefore, a filtration method using a filter cloth may be adopted, but this method requires the work of scraping off the dust trapped in the filter cloth and regenerating the filter cloth. Conventionally, this required a step of once stopping water treatment, scraping off the dust with a scraper, and backwashing with water flowing in the opposite direction.

This invention aims to eliminate the above-mentioned drawbacks, and provides an automatic dust removal device that can regenerate the filter cloth without stopping water treatment and can perform water treatment continuously for a long time. This is what I am trying to do.

``Means for Solving the Problems'' As shown in FIGS. 1 and 2 of the embodiment drawings, the present invention provides a hollow rotary structure in which a raw water inlet (9) is formed on the top surface and is rotated by a prime mover. The rotating chamber (1) has a side wall (2) at an appropriate position in the circumferential direction, which is stretched between pulleys (4) provided in the length direction of the side wall (2), A plurality of endless belt-like filter cloths (3) are provided that go around the inner and outer peripheries of the side wall (2).A plurality of blades (5) are diagonally held on the filter cloths (3) at predetermined intervals. A rotating water flow generated relatively between the rotating chamber (1) and the input raw water due to the rotation is caused by the rotation of the plurality of blades (
5), the filter cloth (3) is automatically rotated in the longitudinal direction of the side wall (2).

On the other hand, the filtered liquid that has been filtered from between the filter cloth (3) in the rotation chamber (1) and the inner periphery of the side wall (2) is discharged from the discharge port (8) provided in the upper pulley (4). ) leaks to the outside.

Further, during the rotation of the filter cloth (3), residues are scraped off by the dust removal mechanism (7) on the outer periphery of the rotating chamber (+), and the residues scraped off by the dust removal mechanism (7) are transferred to the drain (8). is ejected from the aircraft.

"Function" In a device configured in this way, raw water is fed into the inlet (
When the water is introduced into the rotation chamber (1) from 8), the direction of the input and the rotation direction of the rotation chamber (1) interact with each other, causing a water flow that rotates in the circumferential direction of the rotation chamber (1). Ru. Therefore, this water stream hits a plurality of blades (5) diagonally held at predetermined intervals on the filter cloth (3), automatically rotating the filter cloth (3) in the length direction of the side wall (2). let

In addition, during its rotation, the 1lffi cloth (3) is
) The residue is scraped off by the dust removal mechanism (7) outside the
The residue scraped off by this dust removal mechanism (7) is discharged to the outside of the machine by a drain (8).

"Example" Examples will be described below based on the drawings.

In FIGS. 1 and 2, 1 is a hollow rotating chamber 1 which has a raw water inlet 9 formed on its upper surface and is rotationally driven by a prime mover 10. This rotating chamber 1 is rotatably held by a rotating shaft 12 in a tank 1 that houses the entire device, and the rotating shaft 12 is used as a driving force 4! ! It is rotationally driven by being connected to 10. Inside the rotation chamber 1, on the outer periphery of the rotation shaft 12, a raw water input pipe 13, which has two open funnel-shaped wheels, is disposed with its upper end supported by the tank 11. Reference numeral 14 denotes a funnel-shaped discharge plate provided at the lower end of the input pipe 13 with a discharge interval, and discharges raw water flowing in from the input pipe 13 upward toward the inner periphery of the rotation chamber 1. Note that the raw water input port 9 opens toward the open upper end of the input pipe 13.

A plurality of pairs of pulleys 4 are provided in the circumferential direction of the side wall 2 of the rotation chamber 1 at predetermined intervals in the length direction of the side wall 2, and an endless belt-like II! 1 (i 3) is stretched across the pulley 4 so that the filter cloth 3 freely circulates around the inner and outer peripheries of the side wall 2 in the length direction of the side wall 2.
held on top.

A plurality of blades 5 made of, for example, plastic are diagonally held on the filter cloth 3 at predetermined intervals. The holding method may be any suitable means such as adhesion or eyelets. By the rotation of the rotating chamber 1, a rotating water flow is relatively generated between the rotating chamber 1 and the input raw water. This rotating water flow hits the plurality of blades 5 on the filter cloth 3 rotating together with the rotation chamber 1, and automatically rotates the filter cloth 3 in the length direction of the side wall 2.

On the other hand, the filtered liquid that has been filtered from between the filter cloth 3 in the rotation chamber 1 and the inner periphery of the side wall 2 is collected through a projecting side end of the upper pulley 4, which is connected to the rotation chamber 1 and The water flows out from the rotating pipe-shaped discharge port 6 through the outflow pipe 13 to the outside. This pipe-shaped discharge port 6 is inserted into an open groove 14 formed on the inner periphery of the side surface of a ring-shaped outflow pipe 13 held above the rotating chamber 1, and discharges the filtered liquid into the outflow pipe 13.

In addition, during the rotation of the filter cloth 3, the dust removal mechanism 7
The residue scraped off by the dust removal mechanism 7 is discharged to the outside of the machine through a drain 8 piped to the lower part of the tank 11.

Although various means can be considered for the removal lIr1 mechanism 7, the one shown is a water jet nozzle 15 that jets a jet of water from the -L side of the tank 11 toward the side wall of the rotating chamber l.

Of course, this water nozzle 15 can have multiple stages, but
There is no need to provide a large number of filters as long as they eject a jet water stream to a constant length along the length of the filter cloth 3.

Next, FIGS. 3 to 7 show details of a plurality of blades 5 fixedly installed on the filter cloth 3 at predetermined intervals. The filter cloth 3 is connected to a roller chain 17 via horizontal bars 16 fixed at predetermined intervals. Note that 18 is a guide/<- for holding the roller chain 17 at a predetermined interval. The blade 5 is screwed onto the horizontal bar IB so that its base 20 is oblique to the longitudinal direction of the filter cloth 3 at a predetermined angle. Since the roller chain 17 is engaged with a pulley 4 consisting of a sprocket 21 and is rotatable, the rotating water flow hits the plurality of blades 5 on the filter cloth 3 and gives a driving force to the filter cloth 3 in the direction of the arrow 22. At this time, the filter cloth 3 is automatically rotated in the longitudinal direction of the side wall 2.

"Effects of the Invention" As explained above, this invention not only can efficiently filter fine dust, but also uses a centrifugal separation method, so it can efficiently treat water with a small-sized device. can be done.

It was also necessary in the past. This eliminates the need for the process of once stopping water treatment, scraping off the dust with a scraper, and backwashing with water flow in the opposite direction, making it possible to regenerate the filter cloth without stopping water treatment. Therefore, it is possible to provide an automatic dust removal device that continuously processes water for a long period of time.

[Brief explanation of drawings]

The drawings show one embodiment of the automatic dust removal device of the present invention, and the first embodiment
The figure is a schematic vertical cross-sectional view, Figure 2 is a schematic cross-sectional view, Figure 3 is a side view showing details of the blades fixed at predetermined intervals on the filter cloth, and Figure 4 is a partial view of how the blades are attached. 5 is an enlarged cross-sectional view thereof, FIG. 6 is an enlarged longitudinal sectional view thereof, and FIG. 7 is an enlarged plan view with blades attached. l...Rotating chamber 2...Side wall 3...Filter cloth 4...Pulley 5...Multiple blades
6...Discharge lower...Dust removal mechanism 8...
・Drain 9...Raw water inlet patent Applicant: Komiyama Kogyo Co., Ltd. Agent Patent attorney: Hiroshi Tsuchihashi Patent attorney Tsuyoshi Tsuchihashi Figure 5 Figure 7 Figure 6

Claims (1)

[Claims] 1. A hollow rotating chamber (1) that has a raw water inlet (9) and is rotationally driven by a prime mover, and a side wall (2) of the rotating chamber (1).
) A plurality of endless belt-shaped filter cloths (3 )and,
A plurality of blades (5) held diagonally on this filter cloth (3)
, a discharge port (8) through which the filtered liquid that has been filtered from the inner periphery of the filter cloth (3) and the side wall (2) in the rotation chamber (1) flows out to the outside, and an outer periphery of the rotation chamber (1). An automatic dust removal device comprising: a dust removal mechanism (7) for scraping off residue from a filter cloth (3); and a drain (8) for discharging the residue scraped off by the dust removal mechanism (7).