JPH05155441A - Sludge scraping machine for filtering pond - Google Patents

Abstract

PURPOSE:To improve the efficiency of scraping and conveyance when sludge in a filtering pond is scraped and to reliably scrape a filtering pond surface layer by keeping a weight balance. CONSTITUTION:A sampling device 12 is elevatably attached to the front of a self-running type machine body 1 and the sampling device 12 is provided with a sludge scraping bottom plate 47, a sand collecting device 9 at the inside, and a sand pumping-up device 14 to convey collected sludge in a tank 7. A pumping-up cylinder 19 and a sand discharging cylinder 22 are rockably installed at the rear central part of the tank 7, and sludge stored in the tank 7 is discharged to the outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a sand scraping machine for a filter pond used for filtering tap water.

[0002]

2. Description of the Related Art A conventional dirt scraping machine as described above is disclosed in Japanese Utility Model Laid-Open No. 61-68165.
It is known that a hopper for accommodating scraped sand is provided on the crawler traveling cart, and a scraping device for the dirty sand surface layer and a sand lifting screw are provided at the rear of the cart, and the surface layer is submerged in water in the filtration pond. A device disclosed in Japanese Patent Laid-Open No. 63-291610 is known as a scraping robot for scraping sand and continuously discharging sand.

[0003]

However, among the above-mentioned conventional scraping devices, the one disclosed in Japanese Patent Laid-Open No. 63-291610 is a robot type that always operates to discharge scraping sand to the outside even if it is underwater. Therefore, there is a problem that a discharging device and a receiving device for the discharged sand are required, and the cost is high. However, the device shown in Japanese Utility Model Laid-Open No. 61-68165 is comparatively low in cost, or because the traveling and scraping work is performed while storing scraped sand in the hopper on the truck, the weight of the machine becomes heavier due to the scraped sand. In addition to affecting the weight balance of the aircraft and running stability during work, the settling amount of the crawler of the traveling carriage also changes, but since this device has a scraping device attached to the rear of the bogie, it is a crawler on the surface of the sandy surface. In order to carry out the work by scraping on the running trace of, the unevenness may leave some dirt on the surface layer, or it is necessary to deepen the scraping depth to scrape a large amount of sand, resulting in processing efficiency and energy cost. There was also a problem in terms of. The present invention is intended to provide a dirt scraping machine that solves these problems.

[0004]

The scraping machine of the first invention for solving the above-mentioned problems has a tank 7 for accommodating dirty sand mounted on a machine body frame 2 provided with a traveling portion 6, A driver's seat 8 is provided on the front side of the frame 2, and a collecting device 12 for collecting dirty sand and accommodating it in a tank 7 is provided at the front of the machine body so as to be movable up and down, and the collecting device 12 is shaved to remove the sand layer surface. It is characterized by comprising a bottom plate 47, a sand collecting device 9 that laterally collects the dirty sand scraped off by the bottom plate 47, and a sand lifting device 14 that conveys and collects the collected dirty sand into the tank 7. I am trying.

In the second aspect of the invention, a tank 7 for accommodating dirt is mounted on a body frame 2 provided with a traveling section 6, and a driver's seat 8 is provided on the front side of the frame 2 and at the front of the body. Is provided with a sampling device 12 for collecting and storing the dirty sand in the tank 7 so that the collecting device 12 can be moved up and down, and a discharging device for moving and discharging the dirty sand in the tank to the outside is provided at the rear of the machine. It is characterized in that it is provided with a hoisting cylinder 19 which is connected to the inside of the tank 7 and stands upright, and a sand discharging cylinder 22 which is connected to and supported by the hoisting cylinder 19 so that the base end thereof can swing and horizontally turn. There is.

[0006]

In the scraping machine of the present invention, while traveling, the collecting device 12 in front of the scraping device scrapes off the dirt on the surface layer of the sand in the filter basin 56 and stores it in the tank 7. In the collecting device 12, the scraping bottom plate is used. The dirty sand scraped by 47 is gathered inside by the sand collecting device 9 and carried by the sand lifting device 14 into the tank 7. The dirty sand carried into the tank 7 is carried upward by the lifting cylinder 19 and further carried by the sand discharging cylinder 22 so as to be discharged to the outside.

[0007]

1 and 2 are a side view and a plan view of a scraping machine, in which a frame 2 of a machine body 1 is provided with a running portion 6 formed by winding a crawler 4 around a track frame 3 and the frame 2 is mounted on the frame 2. A hopper-shaped tank 7 for charging and storing the scraped sand is mounted on the vehicle, and a driver's seat 8 is provided at the front upper end of the frame 2 so as to project forward. A rear end of a lift arm 9 is swingably supported by a pillar vertically provided at the center of the front end of the frame 2, and a lift cylinder 11 is provided between the lift arm 9 and the frame 2. The operation of the lift cylinder 11 causes the lift arm 9 to move up and down, and the dirt collecting device 12 attached to the tip of the lift arm 9 is moved up and down.

At the approximate center of the rear part of the sampling device 12, a sand lifting cylinder 14 for accommodating the spiral 13 and lifting the dirty sand in the sampling device 12 and discharging it into the tank 7 is erected. , 16 are discharge ports attached to the tip of the sand lifting cylinder 14. The tank 7 has a funnel-shaped cross section when viewed from the front, and a rear feed helix 17 that feeds the input sludge to the rear is provided in the center of the bottom of the tank 7.
Further, a lifting cylinder 19 for accommodating a helix 18 for lifting up the dirty sand sent from the backward sending helix 17 is provided upright in the substantially rear center of the tank 7. The tank cross-sectional shape and the arrangement of the lifting cylinder 19 are useful for maintaining the weight balance when the machine body is loaded.

Further, a turning device 21 is provided at the upper end of the lifting cylinder 19.
The sand discharging cylinder 22 is connected to the sand discharging cylinder 22 so as to be horizontally rotatable and vertically swingable, and the spiral 23 is inserted into the sand discharging cylinder 22 and the sand discharging port 24 is attached to the tip thereof. ..
Further, between the upper part of the lifting cylinder 19 and the base end portion of the sand removal cylinder 22, a drive cylinder 26 that is rockingly driven to raise and lower the sand removal cylinder 22 is attached. The tip of the sand removal cylinder 22 is housed within the tip of the sampling device 12 even if it is laid down in the forward direction, and can be rotated by about 360 ° by the turning device 21.

A swing arm 27 is pivotally supported at the lower rear end of the machine body frame 2, and a leveling plate 28 that is pressed against the sand surface is attached to the rear swing end thereof.
A leveling device 31 having a width of at least the crawler width is configured so that the leveling plate 28 is vertically moved by the lifting cylinder 29 provided between the frame 2 and the frame 2. As shown in phantom lines in FIG. 2, the outer edge of the leveling plate 28 is a foldable type or a detachable type, or an auxiliary leveling plate is additionally provided so as to protrude from the outside of the body, so that the width is wider than the body width. Work can be done.

As shown in FIGS. 1 and 3, the lifting cylinder 27 and the lift cylinder 11 of the leveling device 31 are levers 34 and 36 supported by a shaft 33 on a bracket 32 on the side of the driver's seat 8. Operated by the lever 3
4 and 36 are links 39 and 41 so as to drive hydraulic valves 37 and 38 having ports A, B, T and P, respectively.
Are connected by. Further, the levers 34 and 36 are shown in FIG.
A pair of engaging and disengaging hooks 42 and 43 as shown in FIG. 2 are provided, and both levers 34 and 36 can be operated independently or by engaging the hooks 42 and 43 simultaneously and integrally. By swinging, the lift cylinder 11 and the lift cylinder 29 can be lifted and lowered at the same time.

By operating the above valve, the surface layer of the sand ground can be scraped and the ground leveling at the rear can be performed at the same time, and at the time of traveling, the sampling device 12 and the leveling device 31 can be simultaneously raised. To replenish when replenished,
Since it is not necessary to operate the sampling device 12, the lift cylinder 1
With 1, the leveling operation can be performed only by the lifting cylinder 29 while the sampling device 12 is being lifted. In the sampling device 12, a lower open type casing 46 that also serves as a frame is fixed to the tip of the lift arm 9, and its width is slightly wider than the left and right width of the running part 6, and the running part 6 scrapes dirt before scraping. The structure is such that dirt on the corners of the side wall of the filtration pond can be reliably scraped off without stepping on.
At the bottom of the casing 46, a shaving bottom plate 47 is provided so as to be slanted so as to shave the surface layer of the dirty sand by, for example, about 10 to 20 cm as the airframe advances.

Above the tip of the scraped bottom plate 47,
A raking device 48, which is composed of a rotor having a large number of raking blades radially protruding, is axially supported in the left-right direction, and a sand collecting device composed of a helix that collects the scraped sand in the casing 46 at the rear of the raking device. 49, 49 are each axially supported on the left and right. The lower end of the lifting sand spiral 9 described above is located between the inner ends of the sand collecting devices 49, 49, and the dirty sand collected in the center is lifted by the lifting sand cylinder 14 and put into the tank 7. It has a structure.

As shown in FIGS. 2 and 5, the tank 7 is formed in a cutout state so as to form a space 51 for the driver's seat 8 on the right half front side in a plan view, and on the upper end portion of the left half front end wall 52. 1 is made of a flexible material or a bellows which is elastically pushed downward when the upper end of the sand lifting cylinder 14 is tilted backward as shown in FIG. The response wall 53 is formed, and the sand-lifting cylinder 14
The structure is such that the tank volume is maximized in combination with the above-mentioned plan view shape without hindering the tilting of the tank. As shown in FIG. 6, the dirt scavenger configured as described above sequentially scrapes the surface layer by traveling in a filtration basin 56 surrounded by the peripheral wall 54 to scrape the sewage dirt into the tank 7. Then, the dirty sand stored in the tank 7 is discharged into the dump truck 57 or the like outside the pond by the sand discharging cylinder 22 and is transported to the final treatment site.

[0015]

According to the apparatus of the present invention configured as described above, the sand layer surface of the filter basin, which was conventionally manually performed by an inexpensive apparatus, can be mechanically and forwardly propelled. Therefore, the work can be performed accurately, quickly and efficiently, and the scraping can be carried out while adjusting the scraping device according to the surface state of the layer to be scraped, so that there is no unevenness in the work. The scraped sand is collected by the sand collecting device and carried to the tank by the sand lifting device, so the work is sure and quick. In addition, since the discharging device is equipped with a sand lifting cylinder that is erected at the center of the rear of the tank, the balance of the machine is improved, and it is possible to discharge dirt while moving.
There is an advantage that this work can be performed while traveling stably.

[Brief description of drawings]

FIG. 1 is an overall side view of a dirt scraping machine.

FIG. 2 is an overall plan view of a dirt scraping machine.

FIG. 3 is a perspective view of a hydraulic drive lever for raising and lowering a dirt collecting device and a leveling device.

4A and 4B are hydraulic circuit diagrams showing a lift cylinder, a lifting cylinder, and respective operation valves.

5A to 5C are a plan view, a side view, and a front view of a dirty sand storage tank.

FIG. 6 is a perspective view showing a state of removing dirt from the filter basin.

[Explanation of symbols]

 1 Airframe 2 Frame 7 Tank 8 Driver's Seat 11 Lift Cylinder 12 Sampling Device 14 Sand Lifting Device (Cylinder) 19 Lifting Cylinder 22 Sand Removal Cylinder 29 Lifting Cylinder 31 Leveling Device

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[Procedure amendment]

[Submission date] September 22, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

[0003]

However, among the above-mentioned conventional scraping devices, the one disclosed in Japanese Patent Laid-Open No. 63-291610 is a robot type that always operates to discharge scraping sand to the outside even if it is underwater. Therefore, there is a problem that a discharging device and a receiving device for the discharged sand are required, and the cost is high. However, since although the device shown in Patent Utility Model 61-68165 is relatively low cost to work Ri traveling and scraping while reserving the scraping sand hopper on the dolly, aircraft weight becomes successively heavier by scraping sand In addition to affecting the weight balance of the aircraft and the running stability during work, the settling amount of the crawler of the traveling carriage also changes, but since this device has a scraping device attached to the rear of the bogie, it is a crawler on the surface of the sandy surface. In order to carry out the work by scraping on the running trace of, the unevenness may leave some dirt on the surface layer, or it is necessary to deepen the scraping depth to scrape a large amount of sand, resulting in processing efficiency and energy cost. There was also a problem in terms of. The present invention is intended to provide a dirt scraping machine that solves these problems.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

[0004]

The scraping machine of the first invention for solving the above-mentioned problems has a tank 7 for accommodating dirty sand mounted on a machine body frame 2 provided with a traveling portion 6, the front side of the frame 2 provided the driver's seat 8 when both draw device in the machine body front accommodated in the tank 7 and taken Kitanasuna 12
Is provided so as to be able to move up and down, and the collecting device 12 scrapes the surface of the sand layer, a scraping bottom plate 47, a sand collecting device 9 for laterally collecting the dirty sand scraped by the bottom plate 47, and a collecting sand for collecting the dirty sand. It is characterized in that it is configured with a sand lifting device 14 that is transported and stored in the tank 7.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction content]

[0005] In the second invention, the traveling unit equipped with a tank 7 for Kitanasuna housing 6 on the body frame 2 annexed to, with the provision of the driver's seat 8 to the front side of the frame 2 <br / In the front of the machine, a collecting device 12 for collecting dirt and storing it in the tank 7 is provided to be movable up and down, and a discharging device for moving and discharging dirt in the tank to the outside is provided at the rear of the machine. A lifting cylinder 19 which is erected by connecting the device to the inside of the tank 7 at the rear position of the machine body, and a sand discharging cylinder 22 which is connected to and supported by the lifting cylinder 19 so that the base end thereof can swing and horizontally rotate. It is characterized by having.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

By operating the above valve, the surface layer of the sand ground can be scraped and the ground leveling at the rear can be performed at the same time, and at the time of traveling, the sampling device 12 and the leveling device 31 can be simultaneously raised. To replenish when replenished,
Since it is not necessary to operate the sampling device 12, the lift cylinder 1
With 1, the leveling operation can be performed only by the lifting cylinder 29 while the sampling device 12 is being lifted. In the sampling device 12, a lower open type casing 46 that also serves as a frame is fixed to the tip of the lift arm 9, and its width is slightly wider than the left and right width of the running part 6, and the running part 6 scrapes dirt before scraping. The structure is such that dirt on the corners of the side wall of the filtration pond can be reliably scraped off without stepping on.
A shaving bottom plate 47 is provided at the bottom of the casing 46 so as to incline the surface layer of the dirty sand by, for example, 10 to 20 mm at the tip as the machine advances.

Claims (2)

[Claims] 1. A tank (7) for accommodating dirty sand is mounted on a machine frame (2) having a traveling section (6), and a driver's seat (8) is provided in front of the frame (2). A sampling device (12) for collecting dirty sand and storing it in the tank (7) is provided at the front of the machine body so as to be movable up and down.
(2) a shaving bottom plate (47) for shaving the sand layer surface, a sand collecting device (9) for laterally collecting the sewage sand scraped off by the bottom plate (47), and a tank ( 7) A sand scraping machine for filter basins, which is composed of a sand lifting device (14) that is transported and stored in the inside. 2. A tank (7) for accommodating dirt and sand is mounted on a body frame (2) provided with a traveling part (6), and a driver's seat (8) is provided in front of the frame (2). A sampling device (12) for collecting dirt and storing it in the tank (7) is provided at the front of the machine body so that it can be moved up and down, and a discharge device for moving and discharging the dirt in the tank to the outside is provided behind the machine body. A lifting cylinder (19) that is erected upright by connecting the discharge device to the inside of the tank (7) at a rear position of the machine body, and a base end of the lifting cylinder (19) that is swingably and horizontally rotatable and supported. Exhausted sand drain (22)
Soil scraper for filter pond equipped with.