JPH0657402U - Sludge / scum scratching device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] A sludge scraping device and a scum scraping device are combined with a simple structure and at low cost. [Structure] A carrier provided with a monorail type guide 5 provided long at the bottom of the pond, and a sludge scraper 9 that moves along the guide to scrape sediments at the bottom of the pond toward the pond pit and then returns to the opposite direction. 5 and the drive source 20 of this carrier,
A sludge attracting device provided with a transmission means for transmitting the force to a carrier, a trough 40 fixedly provided near the pond water surface, and a scum on the water surface in a floating state attached to one side of the trough so as to be able to float and sink. A weir member 42 having a buoyancy force that suppresses the inflow of water and attracts the scum on the water surface together with the water in the sinking state,
A push-down member 47 which is attached to the transmission means to allow the dam member to sink and to allow the dam member to float by the movement in the opposite direction;
A scum scraping device provided with a scum scraper 51 that is moved by the motion of the transmission means and can be converted into each of a posture for scraping scum on the water surface toward the dam member and a non-cracking posture.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sludge / scum scratching device.

[0002]

[Prior art]

 In the first or final settling pond, sludge is settled on the bottom of the pond, and it is scraped toward the pit, which is one side of the pond, to let it fall naturally, and the collected sediment is removed outside the pond. There is.

[0003]

[Problems to be solved by the device]

 One of them is a chain drive system. This system consists of multiple rotating shafts with their axes oriented in the width direction of the pond, sprockets mounted around each rotating shaft, and two left and right chains hung through these sprockets. Is equipped with. The device is driven by using some or all of the flights attached to the chain at certain intervals to scrape and remove sludge at the bottom of the pond. According to this method, maintenance costs are high and the economy is poor.

On the other hand, there is a system of reciprocating the pond bottom instead of a circulation system. This is a long guide provided on the bottom of the pond, a carrier that moves along this guide, a drive means (rope, etc.) for reciprocating the carrier, and a sludge scraper attached to the carrier. The sludge settling at the bottom of the treatment pond is scraped out in at least one direction by the movement of the sludge scraper and is discharged outside the pond.

This has the following drawbacks. Since the guides were left and right two systems apart from each other in the pond width direction, not only the guides and their mounting devices, but also a large carrier that straddled these guides were required, which was a very large and expensive device. .

On the other hand, a large amount of scum accumulates on the water surface. At present, these scums are removed by a scum scraping device which is completely independent of the sludge scraping device. Therefore, as a result, the entire equipment for treating both sludge and scum was very large and expensive. In addition, using a separate device has disadvantages in many respects, such as increased maintenance costs.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the device according to claim 1 is a monorail type guide that is long provided at the bottom of the pond, and moves along the guide to remove sediment on the bottom of the pond from the pond. A carrier equipped with a sludge scraper that scrapes in one direction and then returns in the opposite direction, a drive source for this carrier, and a sludge scraping device that includes a transmission means for transmitting the force from the drive source to the carrier, and a pond. A trough fixed near the water surface and attached to one side of the trough so that it can float and sink, and has a buoyancy force that stops the inflow of scum on the water surface in a floating state and attracts the scum on the water surface with the water in a sinking state. A weir member, a push-down member attached to the transmission means that causes the weir member to sink and move in the opposite direction to allow the weir member to float, and a scum on the water surface that moves due to the movement of the transmission means. A scum scraping device provided with a scum scraper capable of converting the scooping position in the direction of the weir member and the non-scratching position. According to the second aspect of the invention, the scum scraper can be changed from the scratched posture to the non-cracked posture in association with the sinking operation of the dam member. According to a third aspect of the present invention, the transmission means is constructed so as to circulate from the bottom of the pond to the top of the pond, and the upper part of the transmission means is tensioned in one direction of movement and loosened in the opposite direction of movement. The scum scraper is in a scratching posture when the tension is applied, and is sunk from the water surface to be in a non-clawing posture when the tension is loosened. According to a fourth aspect of the present invention, the transmission means is constructed so as to circulate from the bottom of the pond to the top of the pond, and a scum scraper is provided in a portion around the top of the transmission means, and the scum scraper has its own weight. It is configured so that it can fall back and forth and be converted, and that conversion is performed by hitting the fixed side.

[0008]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. 1 to 4 show one embodiment of the sludge / scum scratching device of the present invention, FIG. 1 is a view of the device viewed from above, and FIG. 2 is a vertical cross section taken along line II-II of FIG. FIG. 3, FIG. 3 and FIG. 4 are sectional views taken along the line II-II for explaining the operation. In this embodiment, 1 is a rectangular sedimentation pond, and the sedimentation pond 1 is provided with a pair of side walls 2 corresponding to the long sides of the rectangle and an end wall 3 corresponding to the short sides of the rectangle. On the other hand, it is provided with the pond bottom 4 which inclines to the left at a slight angle. In FIG. 1, adjacent sedimentation ponds 1 ... Are shown at the same time. Here, one of the settling basins 1 will be described.

In the sedimentation basin 1, a single orbital type integrated guide 5 is provided long. The guide 5 is formed of an H-shaped channel material or a box-shaped material, and the guide 5 is unified by a splicing method so that it is parallel to the side wall 2 and is firmly fixed on the pond bottom 4 with a bolt. It is fixed. One end of the guide 5 projects above the pond pit 6.

Reference numeral 8 denotes a carrier, which is saddle-shaped so as to straddle the guide 5, and a pair of front and rear main rollers 7 and 7 are attached to the inside of the saddle so that the carrier 8 rolls on the guide 5. At the same time, a side roller (not shown) is attached to the inside of the carrier 8 so as to hit the side surface of the guide 5 and to catch the flange of the carrier 8 so as to prevent the carrier 8 from slipping upward. ing.

A rotary shaft 10 is passed through the carrier 8, the rotary shaft 10 extends from the carrier 8 to the left and right, and a sludge scraper 9 is attached to the extended portion. The sludge scraper 9 is swingably provided in a pair of right and left directions, and can be switched between two postures, that is, a sludge drawing posture which is vertical and a returning posture which is obliquely rearward. This switching is performed by an interlocking lever 11 extending upward from the rotary shaft 10 through a hole of the carrier 8 and a ball joint 12 attached thereto. Each posture of the sludge scraper 9 is defined by the following pulling force and a stopper (not shown).

Reference numeral 15 denotes a driving drum, which is installed at a central position in the width direction on the pond corresponding to the upper side of the pond pit 6 so that the shaft center is horizontal and is rotationally driven in the forward and reverse directions by a driving source 16 with a reduction gear. There is. 17 are a plurality of main drive wheels, which have grooves for wire ropes are used, and a total of four main drive wheels 17 are arranged.

Two of the main drive wheels 17 are arranged just above the front and rear ends of the guide 5, and the remaining two are arranged above them and immediately below the water surface 18. As a result, the drive drum 15 and the four main drive wheels 17 ... Are all arranged on one elevation facing the longitudinal direction of the pond. A transmission member 19, which is an endless wire rope, is stretched around the main drive drum 15. With this, when the main drive drum 15 rotates in one direction, the sludge attracting device A is moved to the solid line in FIG. Proceed from the instruction return position to the solid line instruction position in FIGS. 3 and 4. Further, when the main drive drum 15 rotates in the opposite direction, it makes a return motion from the solid line instructed state of FIG. 4 to the solid line instructed state of FIG.

In order to prevent the transmission member 19 from being loosened, the main drive wheel 17 is suspended by a hydraulic cylinder (with an accumulator 22) that is supported by a jack 20 so as to be vertically adjustable. This slack prevention mechanism may be configured, for example, for another main drive wheel 17 ... Or the main drive drum 15.

Reference numeral 25 denotes a total of 10 auxiliary drive wheels in 5 sets. Two of the wheels 25 are arranged in a vertical axis below the surface of the water near the corner of the pond, and the other two are arranged in the middle of the side wall 2 in the longitudinal direction. The remaining one set is disposed close to each other near the main drive wheel 17 just below the drive drum 15.

The pair of left and right auxiliary transmission members 26, 26 hung through the auxiliary drive wheels 25 ... In the returning state of FIGS. 1 and 2, one end is between the drum 15 and the main drive wheel 17 therebelow. And the other terminal is fastened with a symbol b so as to be between the pair of right and left main drive wheels 17 and 17 on the right side. Therefore, each terminal portion is made up of three transmission members 19 together.

The two auxiliary transmission members 26 are divided into a left side and a right side from the first feed piece 27 through a pair of auxiliary drive wheels 25, 25, which are close to each other, through the main drive wheel 17 below the first feed piece 27, and each side wall. Via auxiliary drive wheels 25, 25 near 2, 2, also a pair of auxiliary drive wheels 26, 26 arranged in the middle of the side wall 2. The auxiliary drive wheel 26 at the right end of FIG. 1 and the auxiliary drive wheel 26 in the middle of the pond width reach the point b. That is, the two auxiliary transmission members 26, 26 are integrated into two at both ends, and are divided into two left and right in the other intermediate portion, and are driven forward and backward while maintaining this state.

Reference numeral 40 denotes a trough which is fixed transversely in the middle of the pond in the longitudinal direction. The trough 40 is a square trough, and is fixed so that one side is higher than the water surface and the other side is below the water surface. On the other side of the trough 40, horizontal weir support shafts 41 are rotatably provided by bearings (not shown) at both ends. Since the base of a weir member (float) 42, which is formed in an elongated shape with an oval cross section, is fixed to the weir support shaft 41, the weir member 42 floats above the water surface 18 and sinks below the water surface 18. When it is in a state, it will rotate and support at the same time.

Fan-shaped side seal plates 43 are attached to both ends of the dam member 42 so as to rotate forward and backward in synchronization with each other. Even if the seal rubber 44 fixed to the trough 40 hits the outer side surfaces of the side seal plate 43 and the dam member 42 swings back and forth, the inflow and outflow of scum water from the front is always prevented. It is configured to exert a sealing property. The lower side of the dam member 42 is sealed with rubber packing. Further, communication troughs 45 inserted and supported in the side wall 2 are joined to both ends of the trough 40, whereby the trough 40 is suspended and supported.

Reference numeral 47 denotes a push-down member, which is slidably provided on each auxiliary transmission member 26. The push-down member 47 is provided with a cam 49 that comes into contact with a roller 48 provided outside the side seal plate 43. This cam 49 progresses from the state of FIG. 2 to come into contact with the roller 48 as shown in FIG. 3, and then pushes down the roller 48 as shown in FIG. 4 to push down the dam member 42 below the water surface.

When the cam 49 operates in the reverse direction, the dam member 42 floats by itself and returns to the original floating state. A long connecting shaft 50 is attached between the left and right sides of the push-down member 47. A scum scraper 51 is rotatably provided on the connecting shaft 50. The scum scraper 51 is a strip-shaped plate, but a slit 52 is formed slightly below the upper end thereof so that the scum can pass therethrough.

As shown in FIGS. 3 and 4, a pair of left and right protrusions 53 that are pushed down by the weir member 42 that is pushed down are provided at both ends of the connecting shaft 50, and below that as shown in FIG. A return piece 55 that contacts the stopper 54 is provided.

Reference numeral 57 is a first return piece attached to the auxiliary transmission member 26, and is adapted to push back the push-down member 47. Reference numeral 60 denotes an overflow weir provided on the three sides of the trough 40 along the side wall 2 and the end wall 3. The overflow weir 60 is provided with a V notch 61, and the notch 61 is automatically cleaned by the following device.

That is, reference numeral 62 denotes a brush, which reciprocates while rubbing on the V notch 61. The brush 62 is reciprocated by the second feeding piece 63 and the second returning piece 64. In addition, B shows a scum attracting device.

Here, the operating conditions of the sludge / scum scratching devices A and B will be described. The sludge attracting device A reciprocates with a stroke of S as shown in FIG. That is, when the drive source 16 is driven and the transmission member 19 is driven, the sludge scraper 9 becomes vertical as shown by the solid line in FIG. 2, and the sediment is scraped toward the pit 6. When the carrier 8 is pulled by the transmission member 19, the carrier 8 may be driven before the sludge scraper 9 swings. To prevent this, however, in order to prevent this, the upper surface of the guide 5 such as the main roller The sludge scraper 9 may be switched first by providing a protrusion or a recess at a position where the vehicle 7 or the side roller rides up or down, thereby generating running resistance of the carrier 8.

Then, when the carrier 8 advances about S ₁ , the first feed piece 27 pushes the push-down member 47 backward, and advances together with the auxiliary transmission member 26 toward the dam member 42. When the process further advances by S _2, the cam 49 of the push-down member 47 contacts the roller 48 as shown in FIG. 3. With this, the weir member 42 starts the lowering operation and is set below the water surface. At that time, the dam member 42 pushes down the projecting piece 53 as shown in FIG. 4, and the scum scraper 51 rises from the inclined state. As a result, the slit 52 of the scum scraper 51 comes to match the height of the water surface 18, so that the scum scraper 51 has no scum scraping function. Meanwhile, the push-down member 47 progresses about S ₃ .

When the drive source 16 is rotated in the reverse direction, the first return piece 57 actuates the push-down member 47 in the reverse direction, whereby the push-down member 47 is returned to the original state in the scum non-cracking state. Then, at the return end, the return piece 55 hits the stopper 54, so that the scum scraper 51 is inclined as shown in FIG. 2 and the slit 52 is submerged below the water surface, so that the scum scraper is in a posture of approaching the scum. It is a so-called play time until the first feed piece 27 hits the push-down member 47, and during that time, a resistance means may be provided for stopping the push-down member 47 regardless of the transmission member 19. This also applies to the brush 62.

Further, when the auxiliary transmission member 26 is driven about S ₄ from the state of FIG. 2, the second feeding piece 63 pushes the brush 62 and advances while rubbing the V notch 61, and about S ₅ Progress and stop. The second return piece 64 advances about S ₅ by the reverse rotation of the drive source 16 to restore the brush 62, and when the brush returns about S _4, it stops.

FIG. 5 shows another embodiment. 70 is a guide, 71 is a carrier, and 72 is a sludge scraper. Reference numeral 73 is a drive wheel, and 74 is a transmission member. A trough 75 is provided with a dam member 76 in front of the trough 75, and a roller 77 is provided in front of the dam member 76 via a lever. The roller 77 works together with the weir support shaft 78 and the weir member 76.

Although the transmission member 74 reciprocates, a push-down lever 79 that pushes down the roller 77 is attached to a portion around the transmission member 74, and a scum scraper 80 is attached behind the lever 79. The upper circumference of the transmission member 74 is slackened like a virtual line when driven in the X direction, and is tense like a solid line when driven in the Y direction. Therefore, when driven in the X direction, the scum scraper 80 scrapes the scum on the water surface 81 and pushes it toward the dam member 76. Since the push-down lever 77 pushes down the dam member 76 via the roller 77, the scum flows into the trough 75. When the drive source 82 is rotated in the reverse direction, the upper part of the transmission member 74 is slackened as described above, so that the lever 79 is separated from the roller 77 and the scum scraper 80 is in a sunk state without scratching back the scum. Return to.

FIG. 6 also shows another embodiment. This embodiment is the same as that of FIG. 5 except for the scum approaching side, so that the same reference numerals are given. The scum scraper 85 can be tilted back and forth by front and rear stoppers 86. The scum scraper 85 falls backward when it hits the dam member 76, and also falls backward when it hits the opposite protruding piece 87. The scum scraper 85 is made of a slightly heavy member so that the scum scraper 85 does not easily fall backward when scratched by the scum, and also does not fall backward when returning.

7 and 8 also show another embodiment. In this embodiment, the trough 75 and the dam member 76 are installed slightly forward, and sewage flows in through the rear thereof as shown by an arrow Z. Two dam members 76 and troughs 75 are added in addition to the original one set, and these are arranged on three sides. Then, these dam members 76 are automatically pushed down. That is, a support column 90 extends above the carrier 71, and a pair of rollers 91 and a scum scraper 92 are attached to the upper end of the support column 90.

The three dam members 75 are provided with a guide plate 93, and a rubber drip 94 is provided in front of them so that the scum does not go further toward the overflow weir 95. . When the carrier 71 moves to the left, it scoops the scum and rides on the guide plates 93, 93 over the rubber droop 94. As a result, the dam members 76, 76 are lowered and flow into the troughs 75. When the scum scraper 92 further advances, the last dam member 76 descends via the guide plate 93, and the scum flows into the trough 75. Although the roller 91 hits the guide plate 93 facing the roller 91, the roller 91 passes by only slightly raising the dam member 76.

[0034]

[Effect of device]

 According to this invention, the sludge trapping device is a single track type and has a very simple structure, and the scum trapping device is combined with it, so that the entire structure is greatly simplified, which is advantageous for the user. It has become possible to provide an inexpensive device.

[Brief description of drawings]

FIG. 1 is a perspective sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is an operation explanatory view.

FIG. 4 is an operation explanatory view.

FIG. 5 is a side sectional view showing another embodiment.

FIG. 6 is a side sectional view showing another embodiment.

FIG. 7 is a side sectional view showing another embodiment.

8 is a vertical cross-sectional view of FIG.

[Explanation of symbols]

 5 70 Guide 6 Pond Pit 8 71 Carrier 9 72 Sludge scraper 16 82 Drive source 19 26 74 Transmission member 40 75 Trough 42 76 Weir member 47 79 Depressing means 51 80 85 Scum scraper

Claims (4)

[Scope of utility model registration request] 1. A carrier comprising a monorail type guide long provided on the bottom of the pond and a sludge scraper which moves along the guide to scrape sediments on the bottom of the pond toward the pond pit and then returns to the opposite direction. And a drive source for this carrier, and a sludge attracting device including a transmission means for transmitting the force from the drive source to the carrier, a trough fixed near the water surface of the pond, and one side of the trough. A weir member having a buoyant force that is mounted so as to be able to float and sink so as to prevent the inflow of scum on the water surface in a floating state and attract the scum on the water surface together with water in a sinking state; A push-down member that allows the weir member to float by a reverse motion, and a posture that moves by the motion of the transmission means to scrape scum on the water surface toward the weir member and a non-crawling posture. Sludge, scum raking device comprising a combination of scum raking device equipped with a convertible Sukamusukurepa. 2. The sludge / scum scraping apparatus according to claim 1, wherein the scum scraper is capable of changing from a scratching posture to a non-cracking posture in association with a sinking operation of the dam member. 3. The transmission means is constructed so as to circulate from the pond bottom to the top of the pond, and the upper part of the transmission means is constructed so as to be tensioned during movement in one direction and loosened during movement in the opposite direction. 2. The sludge / scum scraping device according to claim 1, wherein the scum scraper is in a scratching position when tensioned, and is sunk from the water surface to be in a non-catching position when loosening. 4. The transmission means is constructed so as to circulate from the bottom of the pond to the top of the pond, and a scum scraper is provided around the upper part of the transmission means, and the scum scraper moves forward and backward by its own weight. The sludge / scum scratching device according to claim 1, wherein the sludge / scum scooping device is configured to be able to fall over and be converted by hitting the fixed side.