KR20040067920A - Treating apparatus for adulteration - Google Patents

Abstract

PURPOSE: An adulteration treatment system is provided to improve durability by increasing the rigidity of a screen, to make the water to be treated easily pass through the screen, and to improve treating efficiency. CONSTITUTION: In an adulteration treatment system(100), a screen device(40) and a breaker(30) are installed parallel in a state of crossing a water passage(10). The screen device collects adulterations in the water to be treated and transfers the collected adulterations to a direction of crossing the water passage. The breaker breaks the adulteration transferred by the screen device. The screen device has bar screens(45) of a fixed type and rakes(46). In the bar screen, the front side(45a) is formed in about a rectilinear shape with respect to the water passage, and the side(45b) of the breaker side connected to the front side is formed in a shape of guiding the adulterations to the breaker. The bar screens are arranged parallel in a vertically separated state. The rear of the bar screen is opened. The rakes are arranged parallel in a vertically separated state. Each of the rakes moves between meshes of the bar screen. The front end of the rake comes and goes from the outer periphery of the bar screen, rakes the adulterations collected to the bar screen, and transfers the adulterations to the breaker.

Description

Trapating apparatus for adulteration

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contaminant treatment apparatus for collecting and crushing contaminants in to-be-processed water such as sewage.

If treated water, such as sewage, containing contaminants enters the sewage treatment facility, there is a risk of causing problems such as clogging or damage of equipment such as pumps. Therefore, in the past, an apparatus for processing a contaminant for trapping and crushing contaminants in the water to be treated is provided at the front end of equipment such as a pump of a water channel.

In this contaminant processing apparatus, the sprockets are fixed to each of the drive shaft and the driven shaft in multiple stages, and the endless mesh is formed on each sprocket of the drive shaft and the driven shaft so as to have a substantially long circular shape when viewed from above. The screens are each wound to form a multi-stage mesh screen, and this and a crusher are placed so as to cross the water channel, and the contaminants in the water to be treated are captured by a mesh screen moving around a substantially circular circular trajectory. When the mesh screen passes through the sprockets of the drive shaft, it is known to remove impurities from the mesh screen, move to the crusher, finely crush it in the crusher, and disperse it in the water to be treated (for example, refer to Patent Document 1). ).

<Patent Document 1>

Japanese Patent Application Laid-Open No. 7-132243

The above-mentioned contaminant processing apparatus is applicable to the wide waterway which is currently projected by lengthening the distance between the drive shaft and the driven shaft on which the mesh screen is wound, and the following various problems are pointed out.

Since the endless mesh screen which catches contaminants moves, it becomes difficult to raise rigidity when the distance of this mesh screen becomes long, and it is easily damaged and its durability is bad.

Because the endless mesh screen blocks the waterways twice, the passage of the water to be treated is disturbed, and the level of water rises, and the contaminants passing through the front side of the mesh screen are difficult to escape from the back side of the mesh screen. It increases while remaining in the screen, and as a result, processing efficiency is lowered.

Since the endless mesh screen is a belt surface woven into a mesh shape, impurities are easily adhered to the irregularities, and once stuck, it is difficult to peel off, which further reduces processing efficiency.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and the screen can be enlarged to be applied to a wide channel, the rigidity of the screen to be improved, the durability can be improved, and the water to be treated easily passes through the screen, An object of the present invention is to provide a contaminant treatment apparatus that satisfies both the fact that the contaminants do not stay on the screen and the contaminants are hard to stick together, thereby improving the processing efficiency.

1 is a plan view of a contaminant treatment apparatus according to a first embodiment of the present invention.

FIG. 2 is a front view of the contaminant processing device shown in FIG. 1. FIG.

3 is a right side view of the contaminant treating apparatus shown in FIG. 1.

FIG. 4 is a plan view showing the trajectory of the rake in FIGS. 1 to 3 together with the bar screen.

5 is a partially broken rear view illustrating the crusher in FIGS. 1 and 2.

FIG. 6 is a right side view of an upper portion of the screen device shown in FIGS.

FIG. 7 is a front perspective view showing the main parts of the upper part of the screen device shown in FIGS.

Fig. 8 is a front view showing the locking mechanism of the screen device in Figs. 1 to 3, wherein the slide member is brought into contact with the stopper on the crusher side and the front clamp is released.

9 is a plan view of FIG. 8.

Fig. 10 is a front view showing the locking mechanism of the screen device in Figs. 1 to 3, wherein the slide member is brought into contact with the stopper on the side opposite to the crusher and the front clamp is restrained.

FIG. 11 is a plan view of FIG. 10.

FIG. 12 is a front perspective view showing the main parts of the locking mechanism shown in FIGS. 8 to 11 by extraction.

It is a top view of the screen apparatus of the contaminant processing apparatus concerning 2nd Embodiment of this invention.

14 is a front view of the screen device shown in FIG. 13.

FIG. 15 is a right side view of the screen device shown in FIG. 13.

Fig. 16 is a front view showing the extracting the rake shaft convex portion and the pivoting control convex member in Figs. 13 to 15.

It is a top view which shows the track | route which a rake in FIGS. 13-15 moves with a bar screen.

18 is a plan view of a screen device of a contaminant processing device according to a third embodiment of the present invention.

19 is a front view of the screen device shown in FIG. 18.

20 is a right side view of the screen device shown in FIG. 18.

FIG. 21 is a plan view showing the trajectory of the rake in FIGS. 18 to 20 together with the bar screen.

It is a front view of the screen apparatus of the contaminant processing device according to the fourth embodiment of the present invention.

FIG. 23 is a right side view of the screen device shown in FIG. 22.

24 is a right side view of the planetary gear mechanism of FIGS. 22 and 23.

FIG. 25 is a plan view showing the trajectory of the outer gear and the rake in FIGS. 22 and 23 together with the bar screen.

<Explanation of symbols on main parts of the drawings>

10: channel 30: crusher

40, 41, 42, 43: screen device 45, 145, 245: bar screen

45a, 145a, 245a: bar screen front side 45b, 145b, 245b: bar screen side

46: pitchfork 48, 148: pitchfork shaft

50: motor (drive source) 51: drive shaft

52: driven shaft 53, 54: sprocket

55, 155, 255a, 255b: chain (moving body) 56: connection member (connection)

57: moving cart 65: lock mechanism

66: slide member 67: clamp guide

68: clamp 90d, 90e: stopper

90m, 90n: Convex stopper (contact part) 100: Fine grain processing device

156: rake shaft convex 200: planetary gear mechanism

201: sun gear 202: outer gear

203: planetary gear 204: carrier

206: rake mounting plate (moving body)

The apparatus for processing a contaminant according to the present invention includes a screen device for collecting contaminants in the water to be treated and transferring the collected contaminants in a direction crossing the water channel, and by this screen device. A crusher for crushing conveyed contaminants, wherein the crusher is disposed so as to traverse a waterway, wherein the screen device has a front side with respect to the waterway in a substantially straight line. Together, the side of the crusher side leading to the front side forms a shape for guiding the contaminants with the crusher, and a plurality of plural bars are spaced apart from each other in the up and down direction so that the back side is open, and the plural in the up and down direction. They are spaced apart from each other, and each moves between the eyes of the bar screen, and its tip portion emerges around the outer circumference of the bar screen, and scrapes up the debris collected on the bar screen. A rake to convey is provided.

According to the contaminant processing apparatus configured as described above, the front side has a substantially straight shape, and the side surface of the crusher side leading to the front side has a shape for guiding the contaminants to the crusher, so that a plurality of them are spaced apart in the vertical direction and the rear side is opened. Since the screen device is configured such that each of the rakes in which the plurality is spaced apart from each other in the vertical direction is moved between the eyes of the fixed bar screen, and the rake tip portion emerges around the outer circumference of the bar screen, the fixed bar screen is The screen is supported on both end portions that do not interfere with the appearance of each pitchfork, and the screen is more difficult to bend as compared with the case where the screen is arcuate to support both end portions, thereby increasing the size of the screen. In addition, since the bar screen is fixed, the rigidity can be increased. In addition, since the back side of the bar screen is open, contaminants do not remain on the screen, and the water to be processed easily passes. In addition, since the bar screen is not in the form of a net and the impurities collected in the bar screen are scraped by the rake, the bar screen becomes difficult to adhere to the impurities.

Here, the rake is installed on the rake shaft which is provided on the rear side of the bar screen and extends in the vertical direction, and the rake shaft moves along the front side of the bar screen in a straight reciprocating direction and both ends of the linear reciprocating movement. If the rake is configured to rotate in a linear rake along a front side of the bar screen of the rake shaft, the tip thereof protrudes around the outer circumference of the bar screen and is attached to the bar screen. It is possible to scrape the collected contaminants toward the crusher side, and at the end of the linear fluctuation of the rake shaft, it is rotated and its tip is immersed around the outer periphery of the bar screen and scraped off. It is possible to transfer the collected debris to the crusher, and in the straight double acting along the front side of the bar screen of the pitchfork shaft, the tip end of the bar screen It moves in the state immersed in the circumference, and it rotates at the end of the linear double acting of the rake shaft, and it becomes possible for the tip part to protrude around the outer periphery of the bar screen. Since this is repeated, the operation of the screen device is appropriately realized.

Moreover, as a specific structure which brings about the action | movement of the said screen apparatus suitably, the rake shaft can be rotated up and down on the back surface side of the bar screen so that a rake shaft can be rotated and a rake shaft can be moved. And a moving body capable of linearly reciprocating along the front side of the bar screen and moving body driven to move in one direction in a substantially circular circular trajectory as viewed from above, and the rake shaft has an upper portion thereof. When the movable body moves in a linear portion of the main raceway, when the movable body moves in a linear portion of the main raceway, it is driven by the movable body and moves linearly with the moving cart. When the movable body moves a circular arc portion of the main raceway, It is located approximately coaxially with each of the two axes constituting the main track, and driven to the moving body by half the rotation of the bar screen with the moving cart stopped. This rotation (回 動) at both ends of the linear reciprocating motion, linear reciprocating movement along the side can be given a configuration that can be performed.

Here, if the rake shaft is supported in the vertical direction so that the upper portion of the rake shaft penetrates the moving trolley and is pivotally supported by the moving trolley, the mobile trolley can be arranged in the water phase. In this case, there is no jamming of foreign matters such as sand or interference of running by foreign matters, and thus the moving cart can be moved without any problems.

Further, as a more specific configuration that appropriately brings about the action of the screen device, a drive shaft and a driven shaft having two axes, a drive source for providing a rotation driving force to the drive shaft, a sprocket fixed to each of the drive shaft and the driven shaft, The structure provided with the chain as a mobile body wound around these sprockets, and the upper part of a rake shaft connected to the chain is mentioned.

Here, a lock mechanism for restraining the rotation of the rake shaft when the connecting portion connecting the chain and the rake shaft moves the linear portion of the turning track, and releasing the restraint of the rake shaft when the connecting portion moves the circular section of the turning track. If the rake is driven by the linear movement of the chain, and the rake protrudes around the outer circumference of the bar screen and moves linearly to scrape up the debris collected on the bar screen, Rotation of the rake shaft due to the relaxation of the chain is prevented, so that the angle to the bar screen of the rake shaft is kept constant, so that the debris is well scraped by the rake, and the rake shaft is rotated at both ends of the linear reciprocating movement ( At the time of the movement, the rake shaft is smoothly rotated by the release of the restraint of the rake shaft by the locking mechanism.

In addition, as a specific configuration that appropriately brings the action of the locking mechanism, the slide member supported by the moving trolley so as to be movable in the linear reciprocating direction, and when the connecting portion reaches each end of the straight portion of the main track, Each stopper on the fixed side which abuts against this part and moves the slide member in a direction opposite to the traveling direction, and on the front side and the rear side of the moving cart so as to be able to rotate about an axis orthogonal to the linear reciprocating direction. The clamps supported respectively, and the front clamps and the rear clamps, respectively, are provided in the slide member, and the clamps are engaged with the connecting portions in accordance with the position of the linear reciprocating direction with respect to the clamps to rotate the rake shaft. And a clamp guide enabling rotation to an engagement position for restraining the engagement and a release position for releasing the engagement, The lamp and clamp guide are rotated by the front clamp guide to the release position when the slide member contacts the stopper on the crusher side and moves in the opposite direction and both clamp guides move in the same direction. In addition, the back clamp is rotated to the engaged position by the back clamp guide to wait for the arrival of the connecting portion, and the slide member is brought into contact with the stopper on the side spaced from the crusher and moved in the opposite direction to both clamp guides. Moves in the same direction, the rear clamp rotates to the release position by the rear clamp guide, and the front clamp rotates to the engaged position by the front clamp guide to reach the connecting part. A configuration may be awaiting.

Here, as the contaminant treatment device, the rake is installed on the rake shaft which is provided on the rear surface side of the bar screen and extends in the vertical direction. The rake shaft moves linearly reciprocating along the front side of the bar screen. The structure which rotates as it goes to the end from just before termination is also mentioned.

According to this, in the rake, in a straight run along the front side of the bar screen of the rake shaft, the tip thereof protrudes around the outer circumference of the bar screen, and it is possible to scrape the contaminants collected on the bar screen toward the crusher side. As it goes from the end to the end of the straight line movement of the shaft, it rotates, and the tip end is immersed around the outer circumference of the bar screen, and it is possible to transfer the scraps collected by the crusher to the crusher bar screen. In the straight double acting along the front side of the rod, the tip moves in a state immersed around the outer circumference of the bar screen, and rotates as it goes from the end immediately before the end of the linear rake of the rake shaft. The front end portion can protrude around the outer circumference of the bar screen, and since this series of operations is repeated, the action of the screen device It is appropriately realized.

Here, as a specific structure which appropriately brings about the operation | movement of this screen apparatus, the movable body which is driven to reciprocate a substantially linear track | orbit as viewed from the top, and the rake shaft is rotated on the back surface side of a bar screen. It is provided with a movable trolley which is supported in the vertical direction so as to be able to move upward and downward, and is driven to the linear reciprocating movement of the moving body, and moves linearly reciprocating along the front side of the bar screen together with the rake shaft. The fixed side is provided on each side immediately before both ends of the linear reciprocating movement of the rake shaft, and includes a contact portion which abuts on the convex portion in accordance with the linear reciprocating movement of the rake shaft. When moving, the rake shaft rotates in one direction while contacting the convex portion as it moves from just before one end to one end, and the other side of the contact portion is The structure which rotates a rake shaft in the opposite direction to one direction, making contact with a convex part as it goes to the other end immediately before the other end when the rake side moves linearly.

Moreover, as a contaminant processing apparatus, a rake is provided in the movable body which is provided in the back surface side of a bar screen, and is extended in the up-down direction, and is installed in the moving body which moves so that a substantially long circular orbit can be seen to one direction.

According to this, in the movement of the linear part of the bar screen side of the substantially long circular track, the tip part protrudes around the outer periphery of the bar screen, and it becomes possible to scrape the debris collected on the bar screen to the crusher side, In the movement of the circular arc portion on the crusher side of the substantially long circular track, the tip portion is immersed around the outer circumference of the bar screen, and it is possible to transfer the scraped material to the crusher, and the bar screen of the approximately long circular track orbit In the movement of the linear part on the side away from, the tip moves in a state immersed around the outer circumference of the bar screen, and in the movement of the arc part on the side away from the crusher of the approximately long circular orbit, the tip is the bar screen. Of the screen as it becomes possible to protrude around the perimeter of the The functional value is appropriately realized.

In addition, the apparatus for treating contaminants according to the present invention includes a screen device for collecting the contaminants in the water to be treated and transferring the collected contaminants in a direction crossing the water channel, and a crusher for crushing the contaminants conveyed by the screen device. In the contaminant processing apparatus arranged so as to traverse the channel, the screen device has a front side with respect to the water channel as viewed from above, and the side of the crusher side which is connected to the front side with the short axial side shape of the substantially elliptical shape. It forms a shape for guiding contaminants, and a plurality of bars are arranged side by side apart from each other in the up and down direction, and a plurality of bars are arranged apart from each other in the up and down direction, and each moves between the eyes of the bar screen. The tip end emerges around the outer circumference of the bar screen to scrape up the debris collected on the bar screen and transfer it to the crusher. In that it comprises a rake and characterized.

According to the contaminant processing apparatus configured as described above, the front side with respect to the waterway becomes a substantially elliptical short axial side when viewed from the top of the fixed bar screen, and the rake has a tip portion around the outer circumference of the bar screen. Since the debris collected and collected on the bar screen is scraped and conveyed to the crusher, the same effect as that of the debris processing apparatus having the bar screen having the front side in a substantially straight shape is obtained.

Here, the sun gear provided in the center on the back side of the bar screen, the outer gear provided outside the sun gear, the planetary gear installed to engage with both gears, and supporting these gears, A planetary gear mechanism having a carrier driven to rotate, and a movable body extending in the vertical direction and the radial direction and transmitting rotation of the outer gear, and a rake is provided on an outer portion of the movable body to drive the planetary gear mechanism. When the structure of the circumferential orbit around the elliptical shape is moved in one direction when viewed from above, the rake tip is approximately at the front side of the rake by the one-way movement of the circumferential orbit around the ellipse shape when viewed from above. The oval-shaped short axial shape emerges around the outer periphery of the bar screen and scrapes up the debris collected on the bar screen. It is possible to realize the transfer chain groups.

In addition, when the bar screen and the rake are each plural in number, and the plural blocks are arranged up and down, for example, the height can be easily changed depending on the water channel, and the replacement in the case where a part thereof is broken is also facilitated.

<Example>

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of the contaminant processing apparatus by this invention is described in detail, referring an accompanying drawing of FIGS. 1 to 12 show a first embodiment of the present invention, FIG. 1 is a plan view of a contaminant processing device according to a first embodiment of the present invention, and FIG. 2 is a view of the contaminant processing device shown in FIG. 1. 3 is a right side view of the contaminant processing apparatus shown in FIG. 1, and FIGS. 4 to 12 are detailed detailed explanatory views.

As shown in FIGS. 1-3, the contaminant processing apparatus 100 is provided in the wide channel 10 of the rectangular cross section formed by the bottom 10a and the side walls 10b and 10c, for example about 2m, and is a water channel. A screen device 40 which collects and shreds contaminants in to-be-processed water, such as sewage, which flows through (10), collects and filters the contaminants as they pass, and transfers the collected contaminants. 40 is provided with a crusher 30 for crushing the contaminant conveyed in 40) and the contaminant in the water to be processed.

These crushers 30 and the screen device 40 are accommodated in the box-shaped bottomed frame 90 provided so that they may cross the wide channel 10, and are parallel. As for this frame 90, the upstream front surface and the downstream back surface are opened, and the frame 90 of the to-be-processed water can pass.

5 and 1 to 3, the crusher 30 has a vertically long box-shaped body part 31, and this body part 31 is shown in Figs. 1 and 2. On the side wall 10b in the frame 90. As shown in FIG. 2, an introduction port 38 for introducing the water to be treated is formed on the front surface of the main body portion 31, and as shown in FIG. 5, the main body portion 31 is provided on the rear surface thereof. A discharge port 39 for discharging the water to be treated is formed. 1, 2 and 5, two rotary shredding blades 32 and 32, which are rotatably supported around the vertical axis, are provided with waterways so that the blades mesh with each other. It is parallel to the width direction of 10). Moreover, the main-body part 31 is equipped with the vertical electric motor 33 which rotates and drives the rotary crushing blades 32 and 32 on the upper surface as shown in FIGS. 1-3 and FIG.

The crusher 30 is rotated in the direction in which the rotary crushing blades 32 and 32 attract the contaminants by driving the electric motor 33, and introduces the water to be treated from the inlet 38 to the main body. While discharged from the discharge port 39 through the inside 31, the contaminants in the water to be treated and the contaminants conveyed by the screen device 40 to be described later are sandwiched between the crushing blades 32 and 32 and crushed. Release downstream.

As shown in FIG. 1 and FIG. 2, the screen device 40 is provided adjacent to the crusher 30 in the frame 90, and as shown in FIGS. A plurality of stationary bar screens 45 which face each other and collect the contaminants, a rake 46 for conveying the contaminants collected on the bar screen 45 to the crusher 30, and a drive system for driving the rakes predeterminedly. 47 is provided.

The bar screen 45 has a flat plate shape, and the front side 45a has a substantially straight line shape when viewed from above, and the side surface 45b on the crusher side that follows the front side 45a has a crusher ( It forms in the shape which guides the contaminant in 30, and becomes a shape adjacent to the crusher 30. As shown to FIG.

The bar screens 45 are arranged in a plurality of spaced apart from each other in the vertical direction, and the bar screens 45 adjacent to each other in the vertical direction become eyes for passing the water to be treated and partition the eyes. The bar screen 45 stops the contaminants in the water to be treated. Moreover, the back surface side of these bar screens 45 is open | released.

These bar screens 45 are fixed bar screens in which portions which do not interfere with the rushing operation 46 (detailed later) are fixed to the frame body 90 side (fixed side).

Here, in this embodiment, both ends of the bar screen 45 are fixed to the frame body 90 side, specifically, as shown in FIG. 4, the edge part of the front surface side 45a of the bar screen 45 is shown. While the right end in FIG. 4 is fixed to the side portion 90a on the side wall 10c side of the frame 90, the end (upper end in FIG. 4) of the side surface 45b is fixed. Part) is fixed to the support | pillar 90b which stands up and is installed in the back surface side of the frame 90. As shown in FIG. Thus, since the bar screen 45 is fixed, it is high rigidity.

The bar screen 45 is fixed to the fixed side at the position closest to the position where the rake 46 is immersed without interfering with the appearance of the rake 46. Most preferred.

The rake 46 is attached to the rake shaft 48 which is arrange | positioned at the back surface side of the bar screen 45, and is extended in an up-down direction, as shown to FIG. The rake 46 is fixed to the rake shaft 48 with a plurality of the rake 46 spaced apart from each other in the up and down direction at approximately the same pitch as the eyes of the bar screen 45.

As shown in FIG. 2 and FIGS. 6-8, the rake shaft 48 has the moving trolley 57 in which the upper part is provided in the back surface side of the bar screen 45 rather than the rake 46 of the highest value. As shown in FIG. 2, all the rakes 46 submerge under the water surface WL, and as shown in FIG. 7, the rakes 46 are bar screens 45 as shown in FIG. 2. As shown in FIG. 6, the step-up portion 48a is supported by the moving cart 57 in the up-down direction so as to be located at the same height as the height of each eye of the parenthesis.

The rake 46 and the bar screen 45 are not directly fixed to the mating member by welding or the like, but become one block for each up and down purchase. In the case, the rake shaft 48 is mounted, and in the case of the bar screen 45, the frame 90 is attached, for example, by screwing or the like. For this reason, the height change according to a waterway becomes easy, and also the replacement in the case where a part is damaged is easy.

As shown in FIG. 2, the moving cart 57 is positioned above the water surface WL to support the rake shaft 48, and as shown in FIGS. 6 to 9, the bogie body 57a having a box shape. The upper and lower sets of four wheels comprising a pair of freely rotating front wheels (left wheel in Fig. 8) 57b and a pair of freely rotating rear wheels (right wheel in Fig. 8) 57c. On each of them.

The moving trolley 57 is provided on the upper portion of the frame 90 and extends along the bar screen front side 45a to be spaced apart from each other in the flow direction (left and right direction in FIG. 6) of the water to be treated. The rails 60a on the front side of the rails 60a and 60b on the front side are fitted into the front and rear wheels 57b and 57c on the front side and the lower front and rear wheels 57b and 57c on the front side. The rail 60b on the rear side is inserted into the front and rear wheels 57b and 57c on the rear side and the front and rear wheels 57b and 57c on the rear side and along the rails 60a and 60b. It is movable along the front side 45a.

In this way, the upper and lower wheels sandwich the pair of rails 60a and 60b to prevent the floating trolley 57 from being lifted due to an external force acting on the moving trolley 57.

The drive system 47 is a unit provided on the back surface side of the bar screen 45. As shown in FIG. 2, FIG. 3, and FIG. 7, the drive system 47 is fixed to the upper part of the frame body 90 to generate a rotational driving force. The motor 50, the drive shaft 51 which is the output shaft of this motor 50, the driven shaft 52 supported on the upper part of the frame 90 rotatably around a vertical axis, the drive shaft 51, and the driven shaft ( Sprockets 53 and 54 fixed to each of 52, chains (moving bodies) 55 wound around these sprockets 53 and 54 and extending along the bar screen front side 45a; As shown to FIG. 6-9, the coupling member (connection part) 56 which connects a part of this chain 55 and the upper part of the said rake shaft 48 is provided.

In this drive system 47, when the electric motor 50 is driven, the drive shaft 51 rotates, and the chain 55 rotates around the long circular circumferential track in one direction when viewed from above, thereby connecting the connecting member 56. The rake shaft 48 connected to the s) is driven along the moving cart 57 and linearly moved in accordance with the movement of the linear portion of the circumferential movement of the connecting member 56 by the chain 55.

Further, the rake shaft 48 is configured to be coaxial with the drive shaft 51 and the driven shaft 52 when the connecting member 56 reaches both ends of linear movement. As a result, the connecting member 56 is When the circular arc portion of the main raceway is moved, the rake shaft 48 is driven to drive the coupling member 56 halfway while the moving cart 57 is stopped. Therefore, the rake shaft 48 rotates linearly as the circumferential movement of the chain 55 moves, and rotates (semi-rotates) at the end of the linear reciprocating movement.

And the arrangement relationship of the rake shaft 48 and the bar screen 45 is that when the connecting member 56 is in the straight part of the bar screen front side 45a in a turning track, the rake 46 is Located toward the front side and located between the eyes of the bar screen front side 45a, the tip portion of the rake 46 is set to protrude a predetermined length around the outer periphery of the bar screen front side 45a, and the connecting member ( When 56 is at a predetermined position of the circular arc portion on the crusher side in the main raceway, the tip portion of the rake 46 is immersed with respect to the outer circumference of the screen side surface 45b adjacent to the crusher 30. It is set.

Further, the screen device 40 restrains the rotation of the rake shaft 48 when the connecting member 56 moves a straight portion of the main track so that the rake shaft 48 reciprocates linearly. The member 56 is provided with the lock mechanism 65 which releases the restraint of the rake shaft 48 when the rake shaft 48 rotates by moving the circular arc part of a rotation track.

As shown in FIG. 8 and FIG. 10, the lock mechanism 65 has respective stoppers 90d and 90e fixed to both side portions of the frame 90, and as shown in FIGS. The slide member 66 supported on the 57 and able to abut against the stoppers 90d and 90e and move in the linear reciprocating direction, as shown in FIGS. 8 and 12, the slide member 66. The clamp guide 67 is protruded and installed on the front surface and the rear surface of the upper surface and the front side and the rear surface of the moving cart 57, respectively, are in contact with the clamp guide 67 to slide the slide member 66 When moved, the clamp 68 is rotated to the engaged position / released position in accordance with the movement of the clamp guide 67 to enable restraint / restraining of the rake shaft 48.

As shown in FIGS. 8-12, the stoppers 90d and 90e are attached to the side part 90c of the side wall 10b side of the frame 90, and the side part 90a of the side wall 10c of the frame 90. The protrusions are positioned to protrude inward, respectively, and have a round bar shape in this embodiment.

As shown in FIG. 7 and FIG. 9, the slide member 66 is formed on the moving cart 57 in a substantially well shape when viewed from above, and constitutes a well shape. A part of the crusher side (left side shown) protrudes 66a on which part of the side (hereinafter simply referred to as the opposite side of the crusher) spaced apart from the crusher 30 constituting a well-shaped shape protrudes thereon. And 66b).

As shown in FIG. 12, this slide member 66 is arrange | positioned so that the projection part 66a, 66b may face the stopper 90d, 90e, respectively, and as shown in FIGS. It is supported and guided by the guide member 69 fixed on the 57, and is movable in a linear reciprocating direction.

In addition, the slide member 66 is configured such that the projections 66a and 66b abut on the stoppers 90d and 90e when the rake shaft 48 reaches each end of the linear reciprocating movement.

As shown in Figs. 8 to 11, the clamp guide 67 has a predetermined thickness and has a large cross-sectional shape in a linear reciprocating direction. The front side of the slide member 66 and It is fixed to the upper surface of the back surface side, respectively.

8 to 11, the clamp 68 is rotatably supported on the horizontal axis 70 orthogonal to the linear reciprocating direction and arranged to abut on the clamp guide 67. . As shown in Fig. 8, the clamp 68 includes projections 68a and 68b on the lower surfaces of both ends of the linear reciprocating direction, and a projection 68c on the upper surface of the end of the crusher side. .

As shown in FIG. 10, the clamp 68 protrudes toward the breaker side of the convex plane of the clamp guide 67, and the protrusion 68a on the opposite side of the breaker is clamp guide ( 67) out of contact with the slide member 66, the locked state is in the engaged position, in this engaged position, the projection 68c is engaged with the lower portion of the connecting member 56, As shown in FIG. 8, the projection 68a on the opposite side of the crusher rises to the opposite side of the crusher on the convex plane of the clamp guide 67, and as shown in FIG. 8, the projection 68b on the crusher side. ) Is released from the clamp guide 67 and abuts on the slide member 66, so that the locked state is a release position for releasing the engagement, and at this release position, the projection 68c and the connecting member 56 are removed. The engagement with the lower part of the rake shaft With the rotation of the 48 being free, the clamp 68 rotates with the horizontal axis 70 as the supporting point according to the engagement position and the release position according to the linear reciprocating direction position of the clamp guide 67 (動).

And the clamp 68 is provided in the front side and the back side of the moving cart 57, respectively, as shown in FIG. 12, and the clamp 68 of the front side and the clamp 68 of the back side are linear reciprocation. It is provided so as to face the opposite side in the moving direction, and the relationship between the engagement position and the release position is reversed (as shown in Fig. 12, the rear side is in the release position when the front side is in the engaged position).

Next, operation | movement of the contaminant processing apparatus 100 comprised in this way is demonstrated. The to-be-processed water flowing through the channel 10 is introduced into the crusher 30 and the screen device 40. In the screen device 40, when the water to be treated is introduced, contaminants in the water to be treated are caught by the bar screen 45, and the to-be-treated water in which the contaminants are collected passes through the eyes of the bar screen 45. Discharged downstream.

At this time, in response to the drive of the electric motor 50, the chain 55 moves the linear part of the bar screen front side 45a side in the rotation track toward the crusher side, and the bar screen front surface in the rotation track. The linear part far from the side 45a is moving toward the opposite side of the crusher.

Here, for convenience of explanation, as shown in FIG. 10 and FIG. 11, and as shown by a virtual line in FIG. 1 and FIG. 2, the connection member 56 is a linear part of the bar screen front side 45a side of a turning track. The state is located at the end of the opposite side of the crusher.

And in this way, in the state where the connection member 56 is located in the edge part opposite the crusher of the linear part of the bar screen front side 45a side in a circumferential track, as mentioned above, the rake 46 is FIG. And as shown in FIG. 10, located between the eyes of the bar screen front side 45a and facing the front side, the tip of the rake 46 protrudes from the outer periphery of the bar screen front side 45a. I am in a state.

At this time, as shown in FIG. 12, the front clamp 68 is in the engaged position, and as shown in FIG. 10, the rake shaft 48 is restrained by the coupling member 56 by rotation. . In addition, as shown in FIG. 12, the back side clamp 68 is in a release position.

The rake shaft 48 connected to the chain 55 via the connecting member 56 while being supported by the moving cart 57 is connected to the bar of the chain 55 according to the driving of the electric motor 50. In accordance with the movement of the linear portion on the screen front side 45a side, the linear movement moves toward the crusher side along the moving cart 57. In the present embodiment, the linear movement toward the crusher side of the rake shaft 48 is called a king.

Due to the fluctuation of the rake shaft 48, the rake 46 is enclosed by hatching in FIG. 4, as the tip thereof shows the trajectory A in an imaginary line in FIG. The linear movement is continued in the state which protruded around the outer periphery of the front side 45a of the screen 45, and the debris caught by the bar screen front side 45a by the linear movement of this rake 46 is a crusher. Raking toward the side.

At this time, since the rotation of the rake shaft 48 is restricted by the locking mechanism 65, the rotation of the rake shaft 48 due to the loosening of the chain 55 is prevented. The angle with respect to the front side 45a of the bar screen 45 of this rake shaft 48 is kept constant. For this reason, the contaminants are scraped well by the rake 46.

Then, when the rake shaft 48 reaches the end of the king ie, that is, just before or when the rake shaft 48 reaches the end of the king hoe, Figs. 9 and 12, the crusher side projection 66a of the slide member 66 abuts against the crusher side stopper 90d so that the slide member 66 moves the moving cart 57 onto the opposite side of the crusher. And the front clamp 68 held in the engaged position shown in FIG. 12 by the movement of the clamp guide 67 by the movement of the slide member 66, with the horizontal axis 70 as the support point. It rotates to the release position shown in FIG. 8, and becomes a locked state, and the restraint of rotation of the rake shaft 48 is released.

In addition, by the movement of the clamp guide 67 by the movement of the said slide member 66, the back clamp 68 stuck to the release position shown in FIG. 12 is an engagement position by making the horizontal axis 70 the support point. It rotates in the furnace, and it is in the locked state, and is waiting for the arrival of the connecting member 56 which connects the rake shaft 48 to the chain 55.

Since the restraint of the rotation of the rake shaft 48 by the front clamp 68 is released as described above, the connecting member 56 connecting the rake shaft 48 smoothes the arc portion of the turning track. And the rake shaft 48 rotates halfway with the moving trolley 57 stopped in accordance with the movement of the circular arc portion of the circumferential track of the connecting member 56.

By the rotation of the rake shaft 48 at the crusher side, the rake 46 has its front end as shown by the trajectory A in FIG. 4, and the side surface 45b of the bar screen 45. From the outer periphery of the crusher 30 just before the circumference of the circumference of the circumference of the rake 46, the constriction scraped by the rake 46 is easily separated from the rake 46 It is smoothly introduced into the crusher 30 and is crushed.

When the rake shaft 48 rotates halfway, the connecting member 56 connecting the rake shaft 48 reaches and engages the rear clamp 68 waiting in the engaged position and engages the rake shaft. The moving cart 57 moves in accordance with the movement of the straight portion farther from the bar screen front side 45a of the chain 55, with the rotation being constrained and the rake 46 projecting toward the back side. Move straight along the side of the crusher.

In the present embodiment, the linear movement toward the crusher opposite side of the rake shaft 48 is called double acting. In this double acting, the contaminants in the water to be treated are caught by the bar screen 45 and collected.

And as shown by an imaginary line in FIG. 4, when the rake shaft 48 reaches the end of double acting, ie, just before the rake shaft 48 reaches the end of double acting, or 10 and 11, the projection 66b on the opposite side of the crusher comes into contact with the stopper 90e on the opposite side of the crusher, and the slide member 66 moves on the moving cart 57, as shown in Figs. ) Is moved toward the crusher side, and the back clamp 68 held in the engaged position is moved by the movement of the clamp guide 67 by the movement of the slide member 66, with the horizontal axis 70 as the support point. The lock is rotated to the release position, and the locking state of the rake shaft 48 is released.

In addition, the front clamp 68 held in the release position shown in FIG. 8 by the movement of the clamp guide 67 by the movement of the slide member 66 has the horizontal axis 70 as a support point, and FIG. 10. It rotates to the engaged position shown in the figure, and it is in the locked state, and is waiting for the arrival of the connection member 56. FIG.

Since the restraint of the rotation of the rake shaft 48 by the back clamp 68 is released as described above, the connecting member 56 smoothly moves the arc portion of the turning track. According to the movement of the circular arc part of the circumferential track of the connecting member 56, the rake shaft 48 rotates half a state with the moving trolley 57 stopped.

By the rotation of the rake shaft 48 on the opposite side of the crusher, the rake 46 has the front end side of the bar screen 45, as the tip thereof is indicated by the trajectory A in FIG. 45a) it protrudes around the outer periphery gradually, and the connection member 56 reaches and engages the front clamp 68 waiting in the engaged position, and the rake shaft 48 is constrained to rotate. Enters the state of the first description. In this way, the rake 46 collects on the bar screen 45 by repeating the movement of the long circular winding trajectory as viewed from above, as shown by the trajectory A in FIG. 4. The scraped material is scraped and transferred to the crusher 30.

Thus, in 1st Embodiment, as for the bar screen 45, the front side 45a is substantially linear shape, and the side surface 45b of the crusher side which continues this front side 45a is the crusher 30. As shown in FIG. Since both ends are supported so as not to interfere with the appearance of each of the rakes 46, the screen is arc-shaped (semi-circular). This swinging is difficult, and the screen can be enlarged. For this reason, application to the wide channel 10 like this embodiment is attained, without processing, such as narrowing channel width. And since it applies to such the wide channel 10, the process of large flow volume of about 200m <^3> / min, for example is attained.

Moreover, since the bar screen 45 is fixed without moving, rigidity is improved compared with the conventional mobile type. For this reason, durability is improved. In addition, since the back surface side of the bar screen 45 is open, contaminants do not remain on the screen, and the water to be processed easily passes, and the bar screen 45 is not a mesh shape and the bar screen 45 is not. Since the debris collected in the scrape is scraped off by the rake 46, the debris is hard to stick to the bar screen 45. For this reason, the processing efficiency of the contaminant processing apparatus 100 is improved compared with the past.

Furthermore, since the moving trolley | bogie 57 which supports the rake shaft 48 is moved above the water surface WL without submerging, and moves the rail 60a, 60b, the foreign material, such as sand, when it is arrange | positioned underwater There is no interruption of travel due to pinch or foreign matter, and the moving cart 57 is smoothly moved without any problems. For this reason, the reliability of the apparatus is high.

In addition, since the crusher 30 is mounted on the frame 90 of the screen device 40, the positional adjustment between the devices is easy, and the reproducibility of the crusher 30 when the crusher 30 is detached. It is secured.

In addition, the screen device 40 of this embodiment can cope with various channel widths by changing the length of the screen front side 45a which forms a substantially linear shape when viewed from above.

In addition, it is preferable to perform overload protection by detecting the electric current of the electric motor 50 so that the bar screen 45, the rake 46, etc. may not be damaged, when the rake 46 pinches foreign objects etc., for example.

In the following second to fourth embodiments, embodiments in which the screen device of the contaminant processing apparatus is changed will be described.

13 to 17 show a second embodiment of the present invention, and FIG. 13 is a plan view of a screen device of a contaminant processing device according to a second embodiment of the present invention, and FIG. 14 is a screen shown in FIG. 13. Front view of the apparatus, FIG. 15 is a right side view of the screen device shown in FIG. 13, FIG. 16 is a front view of extracting the rake shaft convex portion and the convex portion stopper in FIGS. 13 to 15, and FIG. 17 is FIG. It is a top view which shows the track | route which a rake in FIG. 15 moves with a bar screen.

In the drawings of the following embodiments, the same or equivalent elements as those of the previous embodiment are denoted by the same reference numerals, and redundant description thereof will be omitted.

In the screen apparatus 41 of this 2nd Embodiment, as shown to FIG. 13 thru | or 15, the water channel with respect to the drive shaft 51 of the vertical electric motor 50 fixed to the upper part of the frame 90 is carried out. The driven shaft 52 spaced apart along the width direction (left-right direction in FIG. 13) is rotatably supported by the upper part of the frame 90, and the back surface side of this driven shaft 52 (upward in FIG. 13). The second driven shaft 152 is rotatably supported on the upper portion of the frame 90 while being spaced apart from the side), and the second sprocket 154 is fixed to the second driven shaft 152.

The chain 155 as a moving body is wound around the sprocket 53 of the drive shaft 51, the sprocket 54 of the driven shaft 52, and the second sprocket 154 of the second driven shaft 152. In this state, one end of the chain 155 is located on the crusher side between the scratches 53 and 54, and the other end is located on the opposite side of the crusher between the scratches 53 and 54. The other end is connected to the crusher side of the crusher side of the mobile truck 57, respectively.

The rake shaft 148 including the rake 46 is supported by the moving trolley 57 in the vertical direction through the moving trolley 57 and rotatably supported. And this rake shaft 148 is not the structure connected to the chain like 1st Embodiment. In addition, the 2nd driven shaft 152 and the 2nd sprocket 154 are provided in order to avoid that the back side chain interferes with the moving cart 57, as shown in FIG.

The moving trolley 57 linearly moves toward the crusher side along the rake shaft 148 by the linear movement toward the crusher side of the end of the chain 155 by the forward drive of the motor 50, and drives the reverse direction of the motor 50. By linear movement toward the opposite side of the shredder of the end of the chain 155 by the linear movement to the opposite side of the shredder along the rake shaft 148. That is, by the forward / reverse drive of the electric motor 50, the rake shaft 148 moves linearly and reciprocally with the moving cart 57. As shown in FIG. The electric motor 50 is driven so that the rotation is reversed at both ends of the linear reciprocating movement of the rake shaft 148.

Further, in the screen device 41 of the second embodiment, a rake shaft rotating mechanism for rotating the rake shaft 148 along the end of the straight reciprocating movement from the end to the end is rotated. It is provided in the frame body 90 as the (148) side and the fixed side.

As shown in FIGS. 13 and 14, the fixed-side rake shaft rotational mechanism is provided at the front of the predetermined distance portion of both ends of the linear reciprocating movement of the rake shaft 148 and also above the rake shaft 148 to be treated. It is the convex part stopper (contact part) 90m, 90n fixed over the upper part of the frame 90 so that it may extend in the water flow direction (up-down direction in FIG. 13).

In addition, the rake shaft rotating mechanism on the rake shaft side has a main body portion 156a fixed to the upper end portion of the rake shaft 148 and an upward step formed on the outer circumferential surface of the body portion 156a. Rake having a support portion 156b protruding upward and outward, and a rotating body 156c rotatably supported around the vertical axis on the upper end surface of the support portion 156b and positioned above the upper end surface of the rake shaft 148. The shaft convex portion 156 is provided.

As shown by the solid line in FIG. 13, the rake shaft convex portion 156 faces the rear face side and the crusher side in the state where the rake 46 protrudes toward the front side (there is toward the rear side about 45 ° from the crusher side). The rotor 156c is further positioned between the convex stopper 90m on the crusher side and the convex stopper 90n on the opposite side of the crusher, as shown in FIGS. 14 and 15. The height is set so that only the rotating body 156c abuts against the convex stoppers 90m and 90n.

Moreover, in the screen device 41 of this 2nd Embodiment, the rake shaft rotation control mechanism for restricting the rotation of the rake shaft 148 is provided.

As shown in FIG. 13, 14, and 16, this rake shaft rotation control mechanism is located on the rotational trajectory of the support portion 156b of the rake shaft convex portion 156 connected to the rake shaft 148. It is a pair of rotationally controlled convex members 157a and 157b which are positioned to be spaced apart from each other in the channel width direction and protrude onto the moving cart 57.

As shown by the solid line in FIG. 13, the rotation control convex member 157a on the crusher side is shown in FIG. 13 of the support 156b of the rake shaft convex portion 156 in a state where the rake 46 protrudes toward the front side. In contact with the end of the counterclockwise side.

In addition, the rotation control convex member 157b on the opposite side of the crusher is provided at a position rotated 90 degrees clockwise from the rotation control convex member 157a on the crusher side.

In addition, in this 2nd Embodiment, the shape at the time of seeing from the bar screen is changed somewhat. That is, in the bar screen 145, the front side 145a has a substantially straight line shape when viewed from above, and the side surface 145b on the crusher side which follows this front side 145a is used to trap the debris in the crusher 30. In the same manner as in the first embodiment, the rotation of the distal end portion of the rake 46 due to the rotation of the rake shaft 148 is a straight reciprocation of the rake shaft. Since the trajectory is not at both ends of the movement but is started at the side immediately before both ends, the trajectory is slightly different from that of the first embodiment, and the side surface 145b of the bar screen 145 is corresponding to that of the first embodiment. Compared with the side surface 45b, the curvature is set rather large.

Next, the operation of the screen device 41 configured as described above will be described. Here, for convenience of explanation, as shown in FIG. 13, FIG. 14, and FIG. 17, it demonstrates from the state in which the rake shaft 148 is located in the terminal opposite side of the crusher of the linear locus to which linear reciprocation moves.

In this way, in the state where the rake shaft 148 is located at the end opposite to the breaker of the linear locus, the rake 46 is similar to the first embodiment as shown in FIGS. 14, 15, and 17. It is located between the eyes of the bar screen front side 145a and facing the front side, and the tip part of the rake 46 is in the state which protrudes around the outer periphery of the bar screen front side 145a.

At this time, as shown in FIG. 13, while the rotating body 156c of the rake shaft convex part 156 contacts the convex part stopper 90n on the opposite side to a crusher, as shown in FIG. 13 and FIG. 16, The support part 156b of the rake shaft convex part 156 is in contact with the rotation control convex member 157a of the crusher side.

In this state, when the motor 50 is driven in the forward direction, the rake shaft 148 is linearly driven along the moving cart 57 which is linearly moved along the linear movement to the crusher side at the end of the chain 55. The rotator 156c of the rake shaft convex portion 156 is separated from the convex stopper 90n on the opposite side of the crusher, and the rake 46 has its trajectory B as the virtual line in FIG. 17. As shown in Fig. 17, the linear motion is continued while protruding around the outer periphery of the front side 145a of the screen 145, which is enclosed by hatching in Fig. 17, and the linear motion of the rake 46 is performed. , The trapped foreign matter caught on the bar screen front side 145a is scraped toward the crusher side.

At this time, in the rake shaft 148, the support portion 156b of the rake shaft convex portion 156 abuts against the rotation regulating convex member 157a, and further counterclockwise rotation in FIG. 13 is restricted. Therefore, the counterclockwise rotation in FIG. 13 is prevented due to the load of the contaminant acting on the rake 46 of the rake shaft 148. For this reason, the contaminants are raked well by the rake 46.

Then, the rake shaft 148 advances immediately before the end of the wangdong, the rotating body 156c of the rake shaft convex portion 156 abuts the convex stopper 90m on the crusher side, and the rake shaft 148 is If it continues to advance to the terminal of the crusher side, this rotating body 156c will be interrupted by the convex part stopper 90m, and will extend this convex part stopper 90m (rear side; in FIG. 13). The rake shaft 148 rotates in the clockwise direction in FIG. 13 while rotating in the direction pushed back to the traveling direction while sliding upward).

By the rotation of the rake shaft 148 on the crusher side, the rake 46 is shown in FIG. 13 at a position where the distal end thereof protrudes to the bar screen front side 145a, as indicated by the trajectory B in FIG. 17. It rotates 90 degrees clockwise in FIG. 17, and immerses to the position of the outer periphery just before the crusher 30 in the outer periphery of the side surface 145b of the bar screen 145. As shown in FIG. By the immersion operation of the rake 46, the contaminants scraped by the rake 46 are easily separated from the rake 46, smoothly introduced into the crusher 30, and crushed.

In this way, when the rake shaft 148 rotates 90 degrees clockwise in FIG. 13 and is shown by an imaginary line in FIGS. 13 and 14, the rake shaft 148 reaches the end of the crusher side. The support part 156b of the rake shaft convex part 156 abuts against the rotation control convex member 157b on the opposite side of the crusher, and further rotation in the clockwise direction in FIG. 13 is restricted. In this state, the motor 50 Is driven in reverse direction.

When the motor 50 is driven in the reverse direction, the rake shaft 148 linearly doubles along the moving cart 57 with the rake 46 facing the crusher side, so that the rake shaft convex portion 156 The rotating body 156c is separated from the convex stopper 90m on the crusher side. In this state, contaminants in the water to be treated are caught by the bar screen 45.

And the rake shaft 148 advances just before the termination of double acting, the rotating body 156c of the rake shaft convex part 156 abuts the convex stopper 90n on the opposite side to a crusher, and the rake shaft 148 is If it continues to advance to the terminal opposite to a crusher, this rotating body 156c will be interrupted by the convex stopper 90n, and will extend this convex stopper 90n (rear side; in FIG. 13). The rake shaft 148 rotates in the counterclockwise direction in FIG. 13 while sliding in an upward direction while sliding upward).

By the rotation of the rake shaft 148 on the opposite side of the crusher, the rake 46 has its front end projecting gradually around the outer circumference of the bar screen front side 145a, so that the rake shaft 148 moves toward the crusher side. When it rotates 90 degrees counterclockwise in FIG. 13 in the facing position, and reaches the end on the opposite side of the original crusher, the rake shaft 148 has the support part 156b of the rake shaft convex part 156 at the crusher side. The counterclockwise rotation in FIG. 13 is further restricted in contact with the rotation regulating convex member 157a of the motor. In this state, the electric motor 50 is driven in the forward direction, after which the series of operations is repeated.

Also in this second embodiment, it goes without saying that the effects almost similar to those of the first embodiment can be obtained.

And in the 1st, 2nd embodiment, although the upper one side support structure which supports the upper part of the rake shafts 48 and 148 rotatably by the moving trolley | bogie 57 is employ | adopted, the rake shaft 48 ( If the lower part of the 148 is likely to be pushed downstream, a guide plate for guiding the rolling may be provided so as to face the downstream side of the movement trajectory under the rake shafts 48 and 148.

18 to 21 show a third embodiment of the present invention, and FIG. 18 is a plan view of a screen device of the contaminant processing device according to the third embodiment of the present invention, and FIG. 19 is a screen shown in FIG. 18. The front view of the apparatus, FIG. 20 is a right side view of the screen device shown in FIG. 18, and FIG. 21 is a plan view showing the track along which the rake in FIGS. 18 to 20 moves together with the bar screen.

In the screen device 42 of the third embodiment, as illustrated in FIGS. 18 to 20, an elongated drive shaft 251 extending in the vertical direction is connected to the output shaft 51 of the electric motor 50. At the same time, the driven shaft 252 is arranged to be spaced apart from the drive shaft 251 in the channel width direction. These drive shafts 251 and driven shafts 252 are rotatably supported by an upper leg 90r whose upper part is fixed over the upper part of the frame 90 along the bar screen front side 45a. At the same time, the lower portion of the frame 90 is rotatably supported by the bottom wall 90s of the frame 90 so as to support both ends of the shaft.

On the drive shaft 251 and the driven shaft 252, the sprockets 253a and 254a are lowered at the same height position of the upper part between the upper leg 90r of the frame 90 and the bottom wall 90s. Sprockets 253b and 254b are fixedly mounted at the same height position, and a chain (moving body) 255a is disposed between sprockets 253a and 254a, and between sprockets 253b and 254b. The chain (mobile body) 255b is wound, respectively.

In these chains 255a and 255b, the rake mounting plate 160 which is long in an up-and-down direction is fixedly mounted, and the said rake 46 is attached to this rake mounting plate 160 and spaced apart from each other in an up-down direction.

According to the screen device 42 configured as described above, when the electric motor 50 is driven, the chains 255a and 255b rotate in a clockwise direction along the long circular winding track. In response to the circumferential movement of the chains 255a and 255b, the rake 46 pivots through the rake mounting plate 160 connected to these chains 255a and 255b, and the tip portion of the rake 46 is shown in FIG. As shown by the trajectory C, the long circular circumferential trajectory is reciprocally moved from above.

Here, when the rake 46 is located in the straight part of the bar screen front side 45a side of a winding trajectory, as shown by a solid line in FIG. 20, while the rake 46 faces a front side, It is located between the eyes of the bar screen front side 45a, and the tip end of the rake 46 is in the state which protrudes around the outer periphery of the bar screen front side 45a.

Accordingly, when the rake mounting plate 160 linearly moves the straight portion on the bar screen front side 45a side of the main raceway toward the crusher side in response to the driving of the electric motor 50, the rake 46 has a tip portion thereof. As shown by the trace C in 21, linear movement is continued in the state which protruded about the outer periphery of the front side 45a of the bar screen 45, and by the linear movement of the rake 46, the front of the bar screen The trash caught on the side 45a is scraped toward the crusher side.

And as shown by the solid line in FIG. 19, when the rake mounting plate 160 moves the circular arc part by the side of the crusher of a turning track, the rake 46 has the tip part shown by the trace C in FIG. Similarly, it immerses gradually from the outer periphery just before the crusher 30 around the outer periphery of the side surface 45b of the bar screen 45, and is scraped by the rake 46 by the immersion operation of the rake 46. The contaminants are easily separated from the rake 46 and smoothly introduced into the crusher 30.

In this state, as shown by the virtual line in FIG. 20, when the rake mounting plate 160 linearly moves the linear part far from the bar screen front side 45a of a turning track to the opposite side of a crusher, the rake 46 will The front end portion continues to move linearly to the opposite side of the crusher in the state of facing the back side. In this state, contaminants in the water to be treated are caught by the bar screen 45 and collected.

And as shown by the virtual line in FIG. 19, when the rake mounting plate 160 moves the circular arc part on the opposite side of the crusher of a turning track, the rake 46 will have the front end side of the bar screen 45 ( It protrudes gradually from the outer periphery of 45a), and it will be in the state of an initial description.

It goes without saying that also in such 3rd embodiment, the effect similar to the previous 1st, 2nd embodiment can be acquired.

22-25 shows 4th Embodiment of this invention, FIG. 22 is a front view of the screen apparatus of the contaminant processing apparatus concerning 4th Embodiment of this invention, FIG. 23 is shown in FIG. 24 is a right side view showing the planetary gear mechanism in FIGS. 22 and 23, and FIG. 25 is a plan view showing the trajectory of the outer gear and the rake in FIGS. 22 and 23 together with the bar screen. .

In the screen device 43 of this fourth embodiment, as shown in FIG. 25, a plurality of bar screens 245 spaced apart from each other in the vertical direction (vertical direction in the paper plane in FIG. 25) are viewed from above. At this time, the front side 245a forms a substantially elliptical short axial side shape, and the side surface 245b on the crusher side that follows the front side 245a forms a shape for guiding the contaminant to the crusher 30, The back side is open.

22, 23 and 25, the rake 46, the planetary gear mechanism 200 which drives the rake 46 predeterminedly, and this planetary body are provided on the back surface side of this bar screen 245. As shown in FIG. The base base 190 which supports the gear mechanism 200 is arrange | positioned.

The base stand 190 is disposed in the frame 90 and is fixed to the bottom wall 90s of the frame 90 and the base portion 190a as shown in FIG. 23. Installed on the side is provided with a support pillar (190b) forming a c-shape when viewed from the side.

As shown in FIGS. 22-24, the vertical motor 50 is provided in the protrusion part 190d to the front side of the upper part which comprises the U shape of this support pillar 190b, and the output shaft of this motor 50 is carried out. The rotational driving force of the drive shaft 251 connected to the planetary gear mechanism 200 is transmitted.

As shown in FIG. 24, the planetary gear mechanism 200 includes a sun gear 201 disposed so that the drive shaft 251 passes through the center thereof, and an outer gear disposed outside the sun gear 201. 202, planetary gears 203 arranged to mesh with both gears 201 and 202, these gears 201 to 203 are supported, and rotational driving force of the electric motor 50 is driven by the drive shaft 251. The carrier 204 is rotated and driven about the sun gear 201.

Furthermore, as shown in FIGS. 22 and 23, the outer gear shaft 205 to which the rotation of the outer gear 202 constituting the planetary gear mechanism 200 is transmitted protrudes outward in the radial direction. The rake mounting plate 206 as a movable body extending downward together is fixed, and the rake 46 is mounted on the rake mounting plate 206 so as to be spaced apart from each other in the vertical direction.

According to the screen device 43 configured as described above, when the electric motor 50 is driven, the drive shaft 251 rotates in the counterclockwise direction in FIG. 25, and the outer gear is operated by the action of the planetary gear mechanism 200. As shown by the trace E of the dashed-dotted line in FIG. 25, 202 moves the circular orbit in a counterclockwise direction when viewed from above, and the rake 46 is moved by the movement of the outer gear 202. As shown in FIG. 25, the tip thereof moves the circumferential trajectory in which the short axis side faces the front side in the elliptical shape in the clockwise direction as seen from above.

Here, when the rake 46 faces the bar screen front side 245a, it is located between the eyes of the bar screen front side 245a, and as shown in FIG. 25, the front-end | tip part is a bar screen front side. It is in the state which protrudes about the outer periphery of the side 245a.

Therefore, when the rake 46 moves to the front side in accordance with the driving of the electric motor 50, the rake 46 has the tip portion of the bar screen 245 as indicated by the trajectory D in FIG. 25. The elliptical trajectory is continued to move in the state protruding from the outer periphery of the front side 245a, and the debris trapped by the bar screen front side 245a is moved to the crusher side by the movement of the elliptical trajectory of the rake 46. Raking towards you.

And as shown by the virtual line in FIG. 22, when the front-end | tip part of the rake 46 becomes close to the crusher side of an elliptical track | orbit, as shown by the trace D in FIG. 25, the side surface side of the bar screen 245 ( The circumference of the circumference of 245b) is gradually immersed from the circumference of the circumference immediately before the crusher 30, and the debris gathered by the rake 46 by the immersion operation of the rake 46 is easily separated from the rake 46. And smoothly introduced into the crusher 30.

Also in such a 4th embodiment, the effect similar to the previous 1st-3rd embodiment can be acquired.

As mentioned above, although this invention was concretely demonstrated based on the embodiment, this invention is not limited to the said embodiment, For example, in the said 1st-3rd embodiment, the movable body is a chain 55, 155, 255a, 255b), for example, a traveling body traveling on the track may be used.

According to the present invention, the front side has a shape of a short axial side having a substantially linear shape or an ellipse shape, and the side surface of the crusher side leading to the front side has a shape for guiding contaminants to the crusher. The screen device is configured such that a plurality of the rakes arranged in parallel with the plurality of spaced apart in the vertical direction between the eyes of the fixed bar screen is opened so that the rake tip portion emerges around the outer circumference of the bar screen. As a result, the fixed bar screen is supported on both end sides thereof, which do not interfere with the appearance of each pitchfork, and this screen is less likely to swing compared to the case where the screens are arcuated to support both end sides. Can be planned. As a result, it is possible to apply to the wide channel. In addition, since the bar screen is fixed, the rigidity is increased, and durability can be improved. In addition, since the back side of the bar screen is open, contaminants do not remain on the screen, the water to be treated easily passes, and the bar screen is not in the shape of a mesh, and the debris collected on the bar screen is scraped by a rake. As it collects, it becomes difficult for clings to stick to the bar screen. As a result, it becomes possible to improve processing efficiency.

Claims (13)

A screen device which collects contaminants in the water to be treated and transfers the collected contaminants in a direction crossing the water channel, and crushes the contaminants conveyed by the screen device. In the contaminant processing apparatus provided with the crusher crossing the said channel, The screen device, As viewed from above, the front side of the waterway forms a substantially straight shape, and the side of the crusher side leading to the front side forms a shape for guiding the contaminants to the crusher, and the plurality of the plural are spaced apart from each other in the vertical direction. Fixed bar screen which is opened in parallel, and the back side is opened, In the vertical direction, a plurality of them are spaced apart from each other, and each moves between the eyes of the bar screen, and the tip portion thereof emerges around the outer circumference of the bar screen to scrape up the debris collected on the bar screen and transfer it to the crusher. A contaminant processing device comprising a rake. The method of claim 1, The rake is installed on the rake shaft which is installed on the rear surface side of the bar screen and extends in the vertical direction, The rake shaft moves linearly reciprocating along the front side of the bar screen, and rotates at both ends of the linear reciprocating movement. The method of claim 2, On the back side of the bar screen, A mobile trolley capable of pivoting the rake shaft and supporting the rake shaft in a vertical direction so as to be able to be driven by the movement of the rake shaft and linearly reciprocating along the front side of the bar screen; When viewed from the top having a moving body which is driven to move in a one-way of a substantially circular circular trajectory, The rake shaft has an upper portion connected to the movable body, and when the movable body moves a straight portion of the circumferential track, the rake shaft is driven by the movable body to move linearly with the movable bogie, and the movable body is the When the circular arc portion of the main raceway is moved, the bar screen is rotated about half a coaxial with each of the two axes constituting the main raceway, and is driven to the moving body in a state of stopping the moving trolley to rotate the bar screen. A straight line reciprocating movement along the front side of the apparatus, and a complex processing apparatus characterized in that rotation at both ends of the linear reciprocating movement is possible. The method of claim 3, The said rake shaft is a fine material processing apparatus characterized by the above-mentioned part of the upper side rather than the rake of the highest value being supported by this movement trolley in the up-down direction so that rotation is possible. The method according to claim 3 or 4, A drive shaft and a driven shaft having the two axes; A drive source for providing a rotational driving force to the drive shaft; A sprocket fixed to each of the drive shaft and the driven shaft; A chain as the movable body wound around these sprockets, The upper part of the rake shaft is connected to the chain, characterized in that the processing apparatus. The method of claim 5, The connecting portion connecting the chain and the rake shaft restrains the rotation of the rake shaft when the linear portion of the main raceway moves, and releases the restraint of the rake shaft when the connecting portion moves the arc portion of the main raceway. A contaminant processing apparatus comprising a lock mechanism. The method of claim 6, The lock mechanism, A slide member supported by the moving cart to be movable in the linear reciprocating direction; Each stopper on the fixed side that contacts the part of the slide member to move the slide member in a direction opposite to the travel direction when the connecting portion reaches each end of the straight portion of the main track; A clamp supported on the front side and the rear side of the moving cart so as to be rotatable about an axis orthogonal to the linear reciprocating direction; Adjacent to each of the front side clamp and the back side clamp, the slide members are respectively provided, and the clamp is engaged with the connecting portion in accordance with the position of the linear reciprocating direction with respect to the clamp to rotate the rake shaft. And a clamp guide enabling rotation to an engagement position for restraining the engagement and a release position for releasing the engagement, The clamp and the clamp guide, When the slide member contacts the stopper on the crusher side and moves in the opposite direction and both clamp guides move in that direction, the front clamp rotates to the release position by the front clamp guide and the back side. The back clamp is rotated to the engaged position by the clamp guide and waits for the arrival of the connecting portion, and the slide member is brought into contact with the stopper on the side separated from the crusher and moved in the opposite direction, so that both clamp guides are moved in the opposite direction. Move to, the back clamp rotates to the release position by the back clamp guide, and the front clamp rotates to the engaged position by the front clamp guide and waits for the arrival of the connecting portion. A contaminant processing apparatus, characterized in that the configuration. The method of claim 1, The rake is installed on the rake shaft which is installed on the rear surface side of the bar screen and extends in the vertical direction, The rake shaft moves along the front side of the bar screen in a straight reciprocating direction, and rotates as it goes from the end immediately before the end of the linear reciprocation. The method of claim 8, On the back side of the bar screen, A mobile body driven to reciprocate in a substantially linear track when viewed from above, It is connected to this movable body, and supports the said rake shaft in a vertical direction so that it can rotate, and it drives to the linear reciprocating movement of the said movable body, along with the rake shaft along the front side of the bar screen. Equipped with a mobile carriage that moves in a straight line, The rake shaft includes a convex portion, The fixed side is provided on each side immediately before both ends of the linear reciprocating movement of the rake shaft, respectively provided with abutting portions abutting the convex portion in accordance with the linear reciprocating movement of the rake shaft, One of the abutting portions rotates the rake shaft in one direction while contacting the convex portion as the rake shaft moves straight from one end to one end when the rake shaft moves linearly. The other side of the contact portion rotates the rake shaft in the opposite direction to the one direction while contacting the convex portion as the rake side moves straight to the other end immediately before the other end. A complex processing device, characterized in that. The method of claim 1, The said rake is provided in the mobile body which is installed in the back surface side of the said bar screen, and is extended in the up-down direction and is driven so that a substantially long circular track | orbit can be seen to move in one direction when viewed from the top. The screen device which collects the contaminants in the water to be treated and transfers the collected contaminants in the direction crossing the water channel, and the shredder which breaks up the contaminants conveyed by the screen device, is disposed to cross the water channel. In the apparatus, The screen device, When viewed from above, the front side of the waterway forms a short axial side of an approximately elliptical shape, and the side of the crusher side that follows the front side forms a shape for guiding impurities to the crusher, and a plurality of spaced apart from each other in the vertical direction A fixed bar screen which is installed in parallel with the back side and is opened, Plurally spaced apart from each other in the up and down direction, each move between the eyes of the bar screen, the tip end of the bar circumference around the outer periphery of the bar screen to scrape up the debris collected on the bar screen and transported to the crusher A contaminant processing device comprising a rake. The method of claim 11, On the back side of the bar screen, A sun gear provided in the center, an outer gear installed outside the sun gear, a planet gear installed to engage both gears, and a planetary gear having a carrier which supports these gears and rotates around the sun gear. A mechanism and a movable body which extends in the vertical direction and the radial direction and which the rotation of the outer gear is transmitted to, The rake is installed on an outer portion of the moving body, and is driven by the planetary gear mechanism to move the circumferential orbit around the ellipse in one direction when viewed from above. The method according to any one of claims 1 to 12, The bar screen and the rake are each one of a plurality of blocks, so that a plurality of blocks are arranged up and down in parallel.