JP2008280754A - Dust collector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To discharge dregs without leaving the dregs on a wiper which has scraped the dregs from a rake. <P>SOLUTION: The dregs of a water channel are captured by a screen 1, and the dregs captured by the screen 1 are scraped up by the ascending rake 2. A main wiper 3 is moved on the scraping surface 2a of the rake 2 by pushing the main wiper 3 by the rake 2 according to the descending movement of the rake 2 or the reversing movement of transfer from the ascending movement to the descending movement, whereby the dregs scraped up by the rake 2 are scraped off by the main wiper 3, and the dregs left on the main wiper 3 are scraped by a sub-wiper 5. By this, the dregs can be discharged out of a system through the sub-wiper 3 without being left on the main wiper 3 which has scraped the dregs from the rake 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a dust remover that captures and removes residue in a water channel.

Conventionally, a dust remover described in Patent Document 1 below is known. The dust remover described in Patent Document 1 is arranged so as to sandwich a screen installed in a water channel so as to extend in the vertical direction, and to sandwich the screen from the upstream side and the downstream side, and the upstream side of the screen extends along the screen. And a wiper that moves up and down and moves along a circular orbit that moves downstream along the screen, and a wiper that is arranged so as to face the rake during reversal movement when the rake transitions from rising to lowering and that can be rotated in the vertical direction The screen residue is captured by a screen, and the screen residue captured by the screen is lifted up by a rake that rises on the upstream side of the screen. When pressed, the wiper moves upward on the raking surface of the rake while the wiper rotates upward, and scrapes off the residue that has been raked by the rake. It is. Such a dust remover is referred to as a front-raised back-down type dust remover because the rake is scraped up on the front side of the screen and lowered on the back side.
Japanese Patent Laid-Open No. 2000-273446

  However, in such a dust remover, when the rake reverses, that is, when the rake rises (from a state substantially orthogonal to the ascending direction) to the standing posture when it descends, the tip of the wiper The part is configured to move on the surface of the rake while being pushed upward by the rake and scrape off the residue that has been raked up by the rake. From the rake located above the tip of the wiper, Since the tip is positioned below the rake and facing upward, the residue is scraped off, so the rake residue straddles the tip of the wiper (the residue is the front and back surfaces of the wiper tip. There are cases in which it cannot be discharged out of the system just by being delivered to the wiper.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a dust remover capable of discharging the residue without leaving the residue on the wiper scraped from the rake.

  The dust remover according to the present invention is installed in a water channel so as to extend in the vertical direction, and moves the screen along the screen while moving the circular track extending in the vertical direction and moving the screen along the screen. In a dust remover equipped with a rake that scrapes off the residue trapped on the screen and a wiper that scrapes off the residue as the rake moves, the wiper moves down or ascends the rake The main wiper is a main wiper that scrapes off the residue of the main wiper. It is characterized by having.

  According to such a dust remover, the residue captured by the screen is lifted by the rising rake, and the main wiper is pushed by the rake as the rake moves downward or reversely moves from rising to falling. The residue remaining on the main wiper is scraped off by the secondary wiper. The residue remaining on the main wiper is scraped off by the secondary wiper. For this reason, the residue can be discharged out of the system through the auxiliary wiper without being left on the main wiper scraped from the rake.

  Here, if the auxiliary wiper moves by being pushed by the main wiper and scrapes off the residue of the main wiper, power for operating the auxiliary wiper is unnecessary.

  Further, as a configuration that effectively exhibits the above-described operation, specifically, the rake is a back-raised back-down type with respect to the screen, and the main wiper is pushed downward by the rake as the rake descends. A structure in which the wiping surface of the rake is moved while being moved in parallel and the auxiliary wiper is pushed upward by the main wiper to scrape the residue of the main wiper while rotating upward.

  Thus, according to the present invention, it is possible to discharge the residue without leaving the wiper scraped from the rake.

  Hereinafter, a preferred embodiment of a dust remover according to the present invention will be described with reference to the drawings. FIG. 1 is a side configuration diagram illustrating a dust remover according to an embodiment of the present invention, FIG. 2 is a perspective view illustrating the dust remover, and FIGS. 3 to 7 are operation explanatory diagrams of a rake, a main wiper, and a sub wiper. The dust remover of this embodiment is installed in a facility such as a sand basin in a sewage treatment plant, a drainage yard, an agricultural waterway, a sand basin in a water treatment plant, and the like. It is for removing.

  As shown in FIG. 1, the dust remover 100 is installed in a water channel 10 to capture a residue in running water, and rises along the back surface of the screen 1 (the right side surface in FIG. 1). A plurality of rakes 2 for picking up and trapping residue, a drive unit 7 for driving the rake 2, and a main wiper unit 4 including a main wiper 3 for scraping the residue raked up by the rake 2. Further, in the present embodiment, the auxiliary wiper unit 6 including the auxiliary wiper 5 that scrapes off the residue of the main wiper 3 is provided.

  As shown in FIG. 2, the screen 1 has a flat screen plate 1x spaced apart from each other by a predetermined length in the width direction of the water channel 10 (in the direction perpendicular to the paper surface of FIG. 1; hereinafter, the same direction is simply referred to as the width direction). As shown in FIG. 1, the upper half portion protrudes above the water surface W. The screen plate 1x includes a vertically extending portion 1a extending in a long shape from the bottom of the water channel 10 toward an obliquely rearward upward direction, and a curved portion 1b that is continuous with the vertically extending portion 1a and curves backward. , And a hanging portion 1c that is continuous with the curved portion 1b and extends downward in a short length.

  The drive unit 7 for driving the rake 2 is located on the back side of the screen 1 from the upper and lower extending part 1a, on the lower side in the vicinity of the curved part 1b and above the water surface W, further on the outer side in the width direction than the screen plate 1x located on the outermost side in the width direction A pair of drive sprockets 7a that are spaced apart from each other in position are spanned with an endless chain 7b so as to form a circular orbit extending in the vertical direction along the screen 1 in a side view. When a motor (not shown) is driven, a pair of drive sprockets 7a are driven to rotate, and the chain 7b moves on the above-mentioned orbit, so that the chain close to the back side of the vertically extending portion 1a of the screen 1 (positioned upstream) Chain) is raised, and the chain far from the back side (the chain located downstream) is lowered.

  The drive unit 7 includes a sprocket 7c for changing the direction of the chain 7b and a sprocket 7d for applying tension to form the circular orbit.

  The rake 2 is formed in a tapered flat plate shape, and as shown in FIG. 2, the rake 2 is connected to both chains 7b and 7b so that a large number thereof are arranged in a straight line at the same angle in the width direction, and is synchronized with both chains 7b and 7b. Then, the same orbit is moved. These rakes 2 are configured to protrude from the gap between the screen plates 1x and 1x, and as shown in FIG. 1, the upper surface of the rake 2 rising along the vertical extending portion 1a of the screen 1 is the screen 1. The scraping surface 2a is used to scrape the trapped residue.

  As shown in FIGS. 1 and 2, the main wiper unit 4 is disposed behind the boundary between the curved portion 1 b and the hanging portion 1 c of the screen 1, and the auxiliary wiper unit 6 is arranged from the hanging portion 1 c of the screen 1. It is disposed below the main wiper unit 4 at the rear.

  The main wiper unit 4 includes the main wiper 3 and a parallel link mechanism 8 for moving the main wiper 3 along a predetermined locus.

  As shown in FIGS. 2 and 3, the main wiper 3 is configured in a flat plate shape extending in the width direction and is inclined so that the upper part is directed forward with respect to the lower part in a side view, and the circular orbit is formed. It is arranged so as to face the rake 2 moving downward. The upper end of the main wiper 3 is a scraping portion 3a that is scraped off by the rake 2, and the scraping portion 3a is a scraping surface 2a of the rake 2 that moves downward. It is arranged to be pushed by.

  As shown in FIG. 2, the parallel link mechanism 8 is a four-bar link in which links are assembled in a parallelogram. The parallel link mechanism 8 is provided for each wall 9 that defines and forms the width of the water channel 10, and the link 8 a that translates the parallel link mechanism 8 in the width direction of the main wiper 3. Both ends are fixed.

  Counter weights 11 are respectively suspended on these parallel link mechanisms 8, and the main wiper 3 and the link 8 a are urged upward by the counter weight 11, and by a stopper 12 provided on the wall body 9. Further upward movement is prevented, and a standby state is set at the standby position shown in FIGS.

  Then, the main wiper 3 has its scraping portion 3a pushed by the scraping surface 2a of the rake 2 that moves downward, while the parallel link mechanism 8 moves the scraping surface 2a of the rake 2 while performing parallel translation downward. It is configured to move up.

  The sub wiper unit 6 includes the sub wiper 5 and a rotation mechanism 13 for moving the sub wiper 5 along a predetermined locus.

  The auxiliary wiper 5 is formed in an angle steel shape that extends in the width direction, and the outer edge of the intersecting portion constituting the L shape faces the upstream side (the left side in the drawing) and moves downward to the main wiper 3. It is arranged to face. The auxiliary wiper 5 has an intersecting outer edge portion as a scraping portion 5a for scraping the residue remaining on the main wiper 3, and the scraping portion 5a is formed on the surface 3b of the main wiper 5 moving downward. It is arranged to be pushed.

  As shown in FIG. 2, the rotating mechanism 13 is fixed to the rotating shaft 13a whose both ends are rotatably supported by both wall bodies 9 and 9, and both ends of the rotating shaft 13a, and the above-mentioned. And plates 13b fixed to both ends of each sub wiper 5 in the width direction.

  The rotation shaft 13a is prevented from further downward rotation by a stopper 14 provided on the wall body 9, and the auxiliary wiper 5 is in a standby state at the standby position shown in FIGS.

  Then, the sub wiper 5 moves on the surface 3b of the main wiper 3 while the scraping portion 5a is pushed by the surface 3b of the main wiper 3 moving downward while being rotated upward by the rotation mechanism 13. It is configured to move.

  As described above, the dust remover 100 is referred to as a back-raised back lowering dust remover because the rake 2 is lifted and lowered on the back side of the screen 1. Below the main wiper 3 and the sub wiper 5, there is provided a screen unloader (not shown) for transporting the screen residue removed by scraping out of the system.

  According to the dust remover 100 configured in this way, the residue such as cloth, paper, and vinyl pieces in the water to be treated flowing from the upstream side (left side in FIG. 1) is captured by the screen plate 1x arranged in parallel. On the other hand, the water to be treated that does not contain residue passes through the gap between the screen plates 1x and 1x to the downstream side (right side in FIG. 1), and the water to be treated is filtered.

  The rake 2 circulates on the above-mentioned orbit by the drive of the drive unit 7, and the residue captured by the screen 1 is lifted up by the scraping surface 2 a of the rake 2 rising along the screen 1.

  As shown in FIG. 3, the rake 2 raked up the residue performs a reversal movement that shifts from rising to lowering at the upper part of the orbit, and when the rake 2 moves downward, as shown in FIG. As shown in FIG. 5, the scraping portion (upper end portion) 3a of the wiper 3 is translated downward by the parallel link mechanism 8 while being pushed by the scraping surface 2a of the rake 2, and the scraping surface 2a of the rake 2 is moved. Move up. Due to the movement of the scraping portion 3a of the main wiper 3, the residue raked up on the scraping surface 2a of the rake 2 is scraped off and dropped downward.

  Here, the relationship between the rake 2 and the scraping portion 3a of the main wiper 3 is that the rake 2 is located above the scraping portion 3a of the main wiper 3 and the scraping surface 2a faces downward, and is below the rake 2 below. The scraper 3a of the main wiper 3 that is located at the top and moves upward on the scraping surface 2a scrapes off the residue, so that the residue of the rake 2 is removed from the scraper of the main wiper 3. There is a case where the upper end part 3a is straddled (the residue covers the front and back surfaces of the scraping part 3a of the main wiper 3) and the residue remains on the main wiper 3.

  However, in the present embodiment, when the scraping portion 3a of the main wiper 3 is pushed by the scraping surface 2a of the rake 2 and moves on the scraping surface 2a of the rake 2, and moves downward in parallel, As shown in FIG. 5, this time, while the scraping portion (intersection outer edge portion) 5a of the sub wiper 5 is pushed by the surface 3b of the main wiper 3, as shown in FIG. And moves on the surface 3 b of the main wiper 3. By the movement of the scraping portion 5a of the sub wiper 5, the upper portion of the surface 3b of the main wiper 3 is also scraped, and the residue remaining on the scraping portion 3a of the main wiper 3 is scraped and dropped downward. .

  When the leading end of the rake 2 is disengaged from the scraping portion 3a of the main wiper 3 by further downward movement of the rake 2, the main wiper 3 is moved by the counterweight 11 and the parallel link mechanism 8 as shown in FIG. The upper wiper 3 is translated upward to return to the original standby position, and the movement of the main wiper 3 causes the auxiliary wiper 5 to be rotated downward by the rotation mechanism 13 to return to the original standby position.

  Here, even though the residue from the scraping portion 3a of the main wiper 3 may remain on the outer surface of the upper plate portion 5b (see FIG. 6) constituting the L-shape of the sub wiper 5, When the secondary wiper 5 is rotated downward to return to the standby position, the secondary wiper 5 is screened off, and the residue is reliably removed. If the auxiliary wiper 5 is a simple flat plate without the upper plate portion 5b, like the main wiper 3, there is a possibility that the residue remains across the upper end of the flat plate.

  Thus, in this embodiment, the residue captured by the screen 1 is scraped by the rising rake 2, and the main wiper 3 is pushed by the rake 2 as the rake 2 moves downward, and the rake 2 Since the residue left on the main wiper 3 is scraped off by the main wiper 3 after moving on the scraping surface 2a and scraped by the rake 2, the residue left on the main wiper 3 is scraped off by the secondary wiper 5. The main wiper 3 scraped off from the rake 2 can be discharged out of the system through the auxiliary wiper 5 without being left behind.

  In the present embodiment, since the auxiliary wiper 5 is moved by being pushed by the main wiper 3 and scrapes off the residue of the main wiper 3, no power is required to operate the auxiliary wiper 5. Economical.

  The present invention has been specifically described above based on the embodiment. However, the present invention is not limited to the above embodiment. For example, in the above embodiment, the dust remover 100 is designated as the rake 2 as being particularly preferable. Is a back-raised back-side dust-removing type dust remover that is lifted on the back side of the screen 1 and lowered on the back-side. However, as in the dust remover described in Japanese Patent Application Laid-Open No. 2000-273646 cited as the prior art, It can also be applied to a front-side freight-side dust-removing type dust remover that is lifted on the front side and lowered on the back side. In short, it is captured on the screen when the rake ascends the orbit extending in the vertical direction. The wiper is scraped up, and the wiper is pushed over the rake scraping surface when the wiper is pushed to the rake as the rake moves downward or reversely moves from rising to falling. It oysters fried in rake is applicable to a dust remover of all types to scrape off the residue.

It is a side lineblock diagram showing a dust remover concerning an embodiment of the present invention. It is a perspective view which shows the dust remover which concerns on embodiment of this invention. FIG. 3 is an operation explanatory diagram of a rake, a main wiper, and a sub wiper in FIGS. 1 and 2 and is a diagram illustrating a standby state of the main wiper and the sub wiper. It is operation | movement explanatory drawing following FIG. FIG. 5 is an operation explanatory diagram following FIG. 4. FIG. 6 is an operation explanatory diagram following FIG. 5. It is operation | movement explanatory drawing following FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Screen, 2 ... Rake, 2a ... Raking surface of rake, 3 ... Main wiper, 5 ... Sub wiper, 10 ... Waterway, 100 ... Dust remover.

Claims (3)

A screen that is installed in a water channel so as to extend in the vertical direction and captures residue, and moves around the circular orbit extending in the vertical direction, and moves up the circular orbit and moves along the screen. In a dust remover comprising: a rake that scoops up the residue trapped by the rake, and a wiper that scrapes off the residue that is lifted up by the rake as the rake moves,
The wiper is a main wiper that moves on the raking surface of the rake by being pushed down by the rake as the rake moves downward or reversely moves from ascending to descending, and scrapes off the residue. And
A dust remover having an auxiliary wiper that scrapes off residue of the main wiper.   2. The dust remover according to claim 1, wherein the sub wiper is moved by being pushed by the main wiper and scrapes a residue of the main wiper. The rake is a back-flicking back descent type with respect to the screen,
The main wiper moves on the raking surface of the rake while being translated downward by being pushed by the rake as the rake descends.
3. The dust remover according to claim 2, wherein the sub wiper scrapes off the residue of the main wiper while being rotated upward by being pushed by the main wiper.

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