KR102491626B1 - Grit lifting apparatus - Google Patents

Abstract

The present invention relates to an apparatus for removing grit, wherein sand and soil settled in a grit basin's channel are swept and collected into a bucket by using water spray and the bucket is moved upward through a rail to remove sand and dirt. For the purpose, the present invention provides a grit lifting apparatus installed in a channel or a grit basin, which comprises: a pair of rails installed side by side on both walls of the channel or grit basin; a spraying unit moving on the rail to spray the sucked water in one direction to sweep away the settled sand and soil; a grit induction unit located on a lower side of the rail to have a portion where water flows installed to be in contact with the floor of the channel or the grit basin, a bottom portion installed to keep the balance in a direction where water flows out by means of support legs, and both sides walls formed to become narrower in width in the direction where water flows out, thereby guiding the sand and soil moved by the spraying unit towards a bucket receiving unit; the bucket receiving unit disposed at an end of the grit induction unit through which water flows out and having an upper end equal to or lower than the bottom of the grit induction unit; a bucket located in the bucket receiving unit to accommodate sand and soil moved by the spraying unit; and a bucket transfer unit transferring the bucket to the upper side to accommodate sand and soil in a separate hopper.

Description

Grit lifting apparatus {Grit lifting apparatus}

The present invention relates to a grit lifter for collecting, lifting, and removing sand and soil precipitated from waterways such as sewage, wastewater, and water treatment plants, or sediment ponds.

Water flowing into sewage treatment plants, wastewater treatment plants, and water treatment plants contains sand and soil along with various impurities such as hair, vinyl, plastic, and tree branches. It enters and is filtered out.

At the front end of the waterway or the grit chamber, a coarse screen and a fine screen are sequentially installed in the direction from where the water flows in to the pump room or the grit chamber, so that large-sized impurities are filtered out by the coarse-grained screen, and small-sized impurities are filtered out by the fine screen In addition, the sand and soil are precipitated to the bottom of the waterway or the sand pond by specific gravity.

The sand and soil precipitated to the bottom of the grit or the grit are separately lifted and removed. As an example, Registration Patent No. 10-0438661 (crane-type grit lifting device) is installed on the upper part of the canal of the grit and along the canal. A steel frame structure provided with a pair of running rails spaced inwardly; a traveling unit disposed on the traveling rail, moving left and right along the traveling rail, and provided with a pair of transverse rails in a direction orthogonal to the traveling rail; a traversing part installed on the traversing rail and moving back and forth along the traversing rail; It consists of a traction machine installed on the traversing part and a lifting bucket part connected to the traction machine so as to move up and down in the traction machine, and a crane lifting part that dredges and lifts the sand of the waterway.

In this structure, a crane is installed on the upper side of the waterway, and the lifting bucket dredges and lifts the sand and soil deposited in the waterway while moving in the front and rear and left and right directions and up and down directions on the crane.

However, such a conventional structure requires an expensive and complex crane structure by installing a crane structure on the upper side of the waterway, and also takes a lot of time by simply dredging and lifting the precipitated sand and soil only by the lifting bucket part, In addition, it is not possible to cleanly remove the sand and soil precipitated in the waterway of the grit chamber, so that residual sand and soil remain, which leads to a disadvantage in that the sand removal efficiency is greatly reduced.

In addition, if the amount of grit introduced in exceeds the capacity temporarily or if the grit lifting machine is not in operation, the sprocket, bucket, chain, etc. are buried and cannot be operated. There was a problem that greatly increased, and also caused a huge problem in the treatment of water, sewage and wastewater.

<Prior art literature>

1. Registered Patent No. 10-0438661

(Crane-type trench lifting device)

In order to solve these conventional problems, the present invention sweeps the sand and soil precipitated into the inlet waterway or the grit deposit into the bucket by water spray, and then moves the bucket upward through the rail to remove the sand and soil. Its purpose is to provide a grit lifting device that allows

The needle lifter according to the first embodiment of the present invention for achieving the above object,

As a grit lifter installed in a waterway or grit,

A pair of rails installed side by side on both side walls of the waterway or the grit chamber;

a spraying unit that sweeps and moves precipitated sand and soil by spraying sucked water in one direction while moving on the rail;

Located on the lower side of the rail, the part where the water flows in is installed in contact with the bottom of the waterway or the grit chamber, and the bottom part is installed to keep it horizontal in the direction in which the water flows out by the support legs, and the side walls are installed so that the water flows out a sediment induction unit that is formed to become narrower in the direction and guides the sand and soil moved by the injection unit toward the bucket receiving unit;

The bucket accommodating portion provided at an end portion through which water flows out of the sediment induction portion, and having an upper portion equal to or lower than a bottom portion of the sediment induction portion;

a bucket located in the bucket accommodating unit and accommodating the sand and soil moved by the jetting unit;

It consists of a; bucket transfer unit that transfers the bucket upward to accommodate sand and soil in a separate hopper,

the injection part

a first operation of sweeping away sand and soil in a first section in a direction in which water flows from an end portion of the water induction part where water flows out;

a second operation of sweeping sand and soil in a second section longer than the length of the first section in a direction in which water flows in from an end portion where water flows out again after completion of the first operation;

After the completion of the second operation, a third operation of sweeping sand and soil in a third section longer than the length of the second section in a direction in which water flows from the end where the water flows out again is repeatedly performed. do.

In addition, in the bucket accommodating portion, a blocking plate is installed in the direction in which sand and soil are introduced to be rotatable by a hinge and a cylinder, and the blocking plate is installed to close a portion of the upper portion of the bucket accommodating portion, and when erected It is characterized in that sand or soil is prevented from entering the inside of the bucket accommodating unit.

In addition, the injection unit

a distribution pipe installed in the width direction of the channel or the grit chamber;

a plurality of nozzles branched from the distribution pipe and formed in an oblique direction toward the bucket accommodating portion;

a submersible pump that sucks water from the waterway or the grit chamber and supplies it to the distribution pipe;

It is characterized in that it consists of; a moving motor for moving the distribution pipe on the rail.

In addition, a rack gear is installed on each of the pair of rails in the longitudinal direction, a bevel gear is engaged with the axis of the moving motor, and a pair of pinion gears are provided on the axis of the bevel gear to be engaged with the rack gear. characterized by

According to the present invention configured as described above, a structure in which water from a waterway or a grit sink is sucked to sweep the precipitated sand and soil toward the bucket, and the bucket is moved upward along the rail to remove the received sand and soil by pouring them into a separate hopper. As a, while having a very simple structure, it is possible to quickly remove the sand and soil precipitated on the bottom of the waterway or the grit, and since no residual sand and soil are left, the sand removal efficiency is greatly increased.

1 is a view showing the overall structure of a bedside lifting device according to a first embodiment of the present invention.
Figure 2 is a view showing the structure of the needle moving part.
Figure 3 is a view showing the structure of the sediment induction unit.
Figures 4 to 7 show other examples of needle lifting units.
8 is a view for explaining a process of moving accumulated sand by the section reciprocating motion of the jetting unit;
Figure 9 is a view showing the structure of the needle lifter according to the second embodiment of the present invention.

The above objects, features and advantages will be described later in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention belongs will be able to easily implement the technical spirit of the present invention.

In describing the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the embodiments of the present invention exemplified below may be modified in many different forms, and the scope of the present invention is not limited to the embodiments described below.

The embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art.

1 is a diagram showing the overall structure of a needle lifter according to a first embodiment of the present invention, FIG. 2 is a diagram showing the structure of a needle moving part, and FIG. 3 is a diagram showing the structure of a needle guiding part.

As shown in FIG. 1, the grit lifting machine according to the first embodiment of the present invention is largely composed of a waterway or grit paper 100, a grit guide part 140, a grit moving part 200, and a grit lifting part 300. In, the name of the waterway or the settling sheet 100 is unified as the settling sheet 100 and described.

The grit chamber 100 is in the form of a waterway, has a bottom surface inclined downward from a position where water flows in to a position where water flows out, and has a coarse screen 110 for filtering out large impurities and a fine screen for filtering out small impurities. (not shown) are sequentially installed with respect to the direction in which water flows into the grit chamber 100.

The grit moving part 200 is for sweeping and collecting the sand (S) and soil precipitated on the bottom of the grit sink 100 toward the grit lifting part 300 with water pressure by water spray, Rails 210 installed side by side in the longitudinal direction of the grit chamber 100 are provided, and the injection unit 220 moves forward and backward by power on the rail 210.

As shown in FIG. 2, a pair of rails 210 and 210' are fixed and installed side by side at the same height on both side walls of the grit chamber 100, and the upper part of the rails 210 and 210' is long in the longitudinal direction. It has a structure in which rack gears 211 and 211' are respectively installed.

Therefore, the spraying unit 220 can move forward and backward on the rack gears 211 and 211' by power, and the spraying unit 220 is the distribution pipe 221 in the width direction of the grit paper 100 in the form of a channel. ) is installed, which has a structure in which both sides of the distribution pipe 221 are blocked, and it is preferable that both ends of the distribution pipe 221 are close to the side walls of the grit chamber 100, and the bucket receiving portion 320 is located below the distribution pipe 221. ) A plurality of nozzles 222 are provided so as to inject water in an oblique direction toward the direction of.

It is preferable that the plurality of nozzles 222 are installed at equal intervals from each other, and the distribution pipe 221 has a larger aperture than the nozzle 222 . In addition, an underwater motor 230 is connected to the distribution pipe 221 to suck water from the grit sink 100 and then supply it to the distribution pipe 221 so that water with pressure is sprayed through the nozzle 222 to deposit water. Push the bucket accommodating part 130 side as if sweeping sand S and soil.

A movement motor 240 is located above the distribution pipe 221, the movement motor 240 and the distribution pipe 221 are connected to each other, and a spur gear or bevel is provided on the shaft 241 of the movement motor 240. Since the gear 250 is engaged, the power from the moving motor 240 is changed in direction.

Both sides of the power shaft 260 of the bevel gear 250 are close to the side walls of the grit chamber 100, and pinion gears 270 and 270' are provided on both sides of the rack gear installed on the rail 210 ( 210, 210 ').

That is, the pinion gears 270 and 270' are placed on the upper side of the rack gears 210 and 210' and moved in the forward and backward directions of the grit chamber 100 together with the moving motor 240 by the driving of the moving motor 240. The injection unit 220 is also moved together.

As a result, a bogie composed of a moving motor 240, a bevel gear 250, a power shaft 260, and pinion gears 270 and 270' moves the injection unit 220 while moving the rails 210 and 210'.

Contact switches or non-contact sensors may be provided at the front and rear portions of the rails 210 and 210' to move the moving motor 240 forward and backward, and when the pinion gears 270 and 270' are detected, a separate controller (not shown) ) controls the moving motor 240 in the forward and reverse directions by an input from such a contact switch or non-contact sensor so that the moving motor 240 and the injection unit 220 can move forward and backward on the rails 210 and 210.

In addition, when the moving motor 240 and the injection unit 220 move forward toward the spit lifting unit 300, the controller drives the submersible pump 230 and controls to spray water through the spray unit 220, and moves backward. Even in this case, it is preferable to drive the submersible pump 230 to increase the transfer amount and speed of sand and soil.

In addition, in order to guide the sand (S) and soil moving by the spraying unit 220 toward the grit lifting unit 300, a settling guide unit 140 is provided as shown in FIG. 3, and the width of the settling paper 100 is Since it is about 4 to 5 m, the width of the bucket 320 should be about 4 to 5 m. Uneconomical and very unreasonable in the design of structures.

Therefore, the size of the bucket 320 should be reasonably reduced, and when the width is reduced, sand S and soil around the bucket accommodating portion 130 may not be accommodated inside the bucket 320. there is.

Therefore, the sand (S) and soil precipitated on the bottom of the grit sink 100 are guided toward the grit lifting unit 300 by using the grit guide unit 140. It has, both side walls of the rear part are in contact with both side walls of the grit paper 100, and the bottom part of the rear part is fixed in contact with the bottom surface of the grit paper 100.

In addition, the front portion facing the needle lifter 300, that is, the tip portion of the needle guide unit 140 is installed so that the gap between the side walls, that is, the width becomes narrower, and the bottom portion of the needle guide unit 140 can maintain a horizontal level. A plurality of support legs 141 are provided at the bottom so as to be.

That is, since the bottom of the grit chamber 100 is formed to be inclined, the bottom of the grit guide part 141 can be maintained horizontally by the support leg part 141.

In addition, the bucket accommodating portion 130 is integrally provided at the front end of the sediment induction unit 140, and the bucket accommodating portion 130 has an open upper side, and the upper end thereof is the bottom of the sediment induction unit 140. It has the same height as the site or is located lower, and the width is equal to or slightly larger than the width of the front end of the needle guide part 140.

Accordingly, the sand (S) and soil moved by the injection unit 220 are guided toward the bucket accommodating unit 130 by the settling guide unit 140, and the inside of the bucket 320 accommodated in the bucket accommodating unit 130. will be accepted as

Preferably, the bucket accommodating portion 130 has a size and shape to accommodate the bucket 320 as tightly as possible, or is slightly larger.

In addition, a blocking plate 150 that rotates forward and backward by a hinge 151 is installed in the bucket accommodating portion 130. , and when operated by the wire rope 153 or the cylinder 152 and laid down, the upper part of the bucket accommodating portion 130 is covered to allow sand and soil to be accommodated in the bucket 320 through the open portion, , When the blocking plate 150 is erected, the bucket 320 moves upward without interfering with the flow of water to the inside of the bucket receiving portion 130 in the absence of the bucket 320, sand ( S) and soil, and other foreign substances should not be introduced.

That is, when the blocking plate 150 is installed between the front end of the sand induction part 140 and the bucket accommodating part 130 and laid horizontally by the wire rope or cylinder 152, the upper side of the bucket accommodating part 130 By covering a part, the sand (S) and soil swept by the injection unit 220 are accommodated in the bucket 320, and when the bucket 320 is erected to lift it upward, it serves as a stopper to remove the sand (S) and to prevent soil from being introduced into the bucket accommodating part 130 in a state where the bucket 320 is detached upward.

In addition, the height of the bucket accommodating part 130 is formed equal to or slightly lower than the height from the bottom of the grit chamber 130 to the bottom of the front end of the grit guide part 140, so that it can be installed without changing the structure of the grit chamber 100. It will do.

When an appropriate amount of sand (S) and soil are accommodated in the bucket 320, the needle lifting unit 300 allows the bucket 320 to be moved out of the water surface and then poured into a separate hopper 340. To this end, the On the other side of the bucket accommodating part 130, that is, on the opposite side of the rail 210, an upward bucket transfer unit 310 is installed to transport the bucket 320 upward.

The bucket transfer unit 310 may be composed of a rail having a chain in the form of an endless track, and the bucket 320 may be fixed to the chain by a separate attachment. The upper part of the bucket transfer unit 310 Is formed of a '∩'-shaped rail structure, and has a structure that can be turned over by rotating the bucket 320 180 °.

That is, after the bucket 320 is transferred upward by the bucket transfer unit 310, it is rotated at 180° and turned over so that sand S and soil can be poured into a separate hopper 340, and the hopper ( When a certain amount of sand (S) and soil accommodated in 340) are collected, they are carried out by a truck or transport conveyor 350.

Contact switches or non-contact sensors may be provided at the upper and lower ends of the bucket transfer unit 310 composed of chain rails or wire ropes, and a separate controller operates the bucket transfer unit 310 by input signals from them. ) By forward and reverse rotation of the chain, it is possible to lift the bucket 320 or accommodate it in the bucket accommodating part 130.

The operation of the present invention having such a structure will be described.

First, when the underwater motor 230 is operated together with the moving motor 240 in a state where the injection unit 220 is initially located at the rear of the rail 210 by the operation of the moving motor 240, the spraying unit ( 220 moves toward the bucket accommodating portion 130 and sprays the water sucked by the underwater motor 230 through the nozzle 222 to remove the sand (S) and soil precipitated by the spray pressure from the bucket accommodating portion 130. ) will be moved towards

At this time, the sand (S) and soil guided toward the bucket accommodating portion 130 by the sediment induction portion 220 pass through the upper portion of the blocking plate 150 and are accommodated in the bucket 320.

When the injection part 220 reaches the front part of the rail 210, the controller reversely rotates the moving motor 240 so that the injection part 220 moves to the rear part of the rail 210, and then the controller When an appropriate amount of sand or soil is detected in the 320 by a separate sensor, the cylinder 152 is driven so that the blocking plate 150 is erected, and then the bucket transfer unit 310 is driven to lift the bucket 320. Accordingly, the bucket 320 rotates 180 ° on the upper side of the bucket transfer unit 310 to pour sand S and soil into the hopper 340.

When all the sand and soil in the bucket 320 are poured, the controller rotates the bucket transfer unit 310 in reverse so that the bucket 320 is accommodated in the bucket receiving unit 130 again, and then controls the cylinder 152 to The blocking plate 150 covers the upper part of the bucket accommodating part 130 and the bucket 320.

By repeating this process, the sand (S) and soil precipitated in the grit chamber 100 are removed, and a plurality of grit movers 200 according to the present invention may be installed at regular intervals.

In addition, the controller can remove the precipitated sand (S) and soil by repeating the above operation whenever an appropriate amount of sand or soil is detected by the sensor or at a set time interval.

4 to 6 show another example of the needle lifter 300, the upper end of the transfer unit 310 is bent at 90 °, the bent portion has a curved portion in a round shape, and the transfer unit ( 310) is provided with a stopper 301 below the front end portion.

In addition, a rotational shaft 330 that rotates by power is provided at the front end of the transfer unit 310, and an insertion protrusion 331 is formed outside the rotational shaft 330, and an upper end of the bucket 320, that is, As shown in FIG. 5, when the bucket 320 is transferred to the front end of the bucket transfer unit 310, a groove-shaped socket 321 is provided at a portion facing the insertion protrusion 331.

The socket 321 is formed across the width direction of the bucket 320, and allows the rotary shaft 330 to be inserted inside, and has a diamond shape with an upper and lower narrow so that the size gradually increases toward the open inlet. It is desirable to have

In addition, the insertion protrusion 331 has a diamond shape with a front portion smaller than the rear portion, so that it can be easily inserted into and coupled to the socket 321 .

Therefore, as shown in FIG. 6, when the rotating shaft 330 is inserted into the socket 321 while the bucket 320 is transferred to the front end of the bucket transfer unit 310, the rotating shaft 330 is rotated by power and the bucket ( 320) is completely overturned, so that the transferred sand is poured into the hopper 340.

At this time, the bucket 320 is prevented from being overturned by more than 180° by the stopper 301 .

Thereafter, the rotating shaft 330 reverses the bucket 320 by reverse rotation by power, and when the bucket 320 moves downward, the rotating shaft 330 and the insertion protrusion ( 331 is separated, and as a result, the bucket 320 is moved downward by the bucket transfer unit 310 and is accommodated in the bucket accommodating unit 130 again.

On the other hand, when a large amount of sand and soil is introduced and piled up in the grit guide unit 140, the sand and soil pile-up phenomenon may not be easily resolved even by spraying by reciprocating movement of the spraying unit 200.

That is, the spraying unit 220 sprays water while moving from the water inflow part 140 to the water outflow part of the sand induction unit 140, so that sand and soil are moved while sweeping, but the sand and soil are moved by the sand and soil in the sink induction unit 140. ), a pile-up phenomenon may occur as the sand and soil are swept toward the water outflow part of the sediment induction unit 140 and more sand and soil are accumulated in the direction where the water flows out.

Therefore, in the present invention, sand and soil can be moved to the end of the sand induction unit 140 and accommodated in the bucket 320 while the spray unit 220 reciprocates in the section.

To this end, as shown in FIG. 8, the spraying unit 220 sprays sand and soil while moving in a first section S1 set in the direction in which water flows in from the tip of the grit guide unit 140 where water flows out. A first operation of sweeping the outflow end portion;

After the first operation is completed, the water flows from the tip of the sink guide part 140 to the direction where water flows in through the second section S2 set longer than the length of the first section S1. A second operation of sweeping sand and soil with the outflow end;

After the second operation is completed, the water flows from the tip of the sink guide part 140 through which the water flows in the third section S3 set longer than the second section S2 in the direction in which the water flows in. The third operation of sweeping sand and soil with the outflowing end portion; is repeatedly performed.

Therefore, first, when the spraying unit 220 moves the sand and soil in the first section S1 toward the bucket accommodating portion 130 and accommodates them in the bucket 320, the sand and soil in the second section S2 are removed. Since the sand and soil piled up in section 1 (S1) are already accommodated in the bucket 320, the injection unit 220 operates in the second section (S2), that is, between the first section (S1) and the second section (S2). Sand and soil can be easily moved toward the bucket accommodating part 130.

In addition, after the movement of the sand and soil in the second section S2, the injection unit 220 operates in a third section S3, that is, between the second section S2 and the third section S3. By moving the bucket toward the receiving portion 130, it is possible to lift it very easily without accumulation of sand and soil.

The length of each section and the number of sections may be appropriately set according to the length of the grit guide unit 140 and the inflow of sand and soil. This solves the congestion phenomenon, and if the length of the needle guide part 140 is long, the number of sections can be set by increasing the number of sections to the 4th section, the 5th section, ..., the n-th section.

9 is a diagram showing a second embodiment of the present invention, as in the first embodiment, the bucket 320 is accommodated in the bucket accommodating portion 130 and moves upward along the rails 210 and 210' to the hopper ( 340), instead of the structure for accommodating sand and soil, when sand and soil are moved and introduced into the accommodation groove 160 located at the end of the water inlet guiding unit 140 by the spraying unit 220, the lifting It has a structure in which sand and soil are pumped by the pump 360 and the lifting pipe 370 to be accommodated in the hopper 340 .

Of course, in this second embodiment, the spraying unit 220 sweeps and moves sand and soil toward the receiving groove 160 while moving the set sections (S1, S2, S3, ...) of the settling guide unit 140. will have

Having described specific parts of the present invention in detail above, it is clear to those skilled in the art that these specific descriptions are merely preferred embodiments, and the scope of the present invention is not limited thereby. something to do.

Accordingly, the substantial scope of the present invention will be defined by the appended claims and their equivalents.

100: grit
110: jomok screen
130: bucket receiving part
140: acupuncture induction unit
150: blocking plate
151: hinge
152: cylinder
153: rope
160: receiving groove
200: Chimsa East
210,210': Rail
220: injection unit
221: distribution pipe
222: nozzle
230: submersible pump
240: moving motor
241: motor shaft
250: bevel gear
260: power shaft
270,270' : pinion gear
300: salvage service
301: stopper
310: bucket transfer unit
320: bucket
321: socket
330: axis of rotation
331: insertion protrusion
340: Hopper
350: export conveyor
360: lifting pump
370: Salvage Hall

Claims (5)

As a grit lifter installed in a waterway or grit,
A pair of rails installed side by side on both side walls of the waterway or the grit chamber;
a spraying unit that sweeps and moves precipitated sand and soil by spraying sucked water in one direction while moving on the rail;
Located on the lower side of the rail, the part where the water flows in is installed in contact with the bottom of the waterway or the grit chamber, and the bottom part is installed to keep it horizontal in the direction in which the water flows out by the support legs, and the side walls are installed so that the water flows out a sand induction unit that is formed to become narrower in the direction and guides the sand and soil moved by the injection unit toward the bucket receiving unit;
The bucket accommodating portion provided at an end portion through which water flows out of the sediment induction portion, and having an upper portion equal to or lower than a bottom portion of the sediment induction portion;
a bucket located in the bucket accommodating unit and accommodating the sand and soil moved by the jetting unit;
It consists of a; bucket transfer unit that transfers the bucket upward to accommodate sand and soil in a separate hopper,
the injection part
A first operation of sweeping sand and soil to the end of the water outflow while moving a first section set in the direction of water inflow from the end of the water induction unit where the water flows out;
A second operation of sweeping sand and soil from the end of the water induction unit to the end of the water outflow while moving a second section set longer than the length of the first section in the direction in which water flows in;
After the second operation is completed, sand and soil are moved from the end of the sediment induction part where water flows out to the end where water flows out while moving through a third section set longer than the length of the second section in the direction where water flows in. A third operation of sweeping out; characterized in that it repeatedly performs.
As a grit lifter installed in a waterway or grit,
A pair of rails installed side by side on both side walls of the waterway or the grit chamber;
a spraying unit that sweeps and moves precipitated sand and soil by spraying sucked water in one direction while moving on the rail;
Located on the lower side of the rail, the part where the water flows in is installed in contact with the bottom of the waterway or the grit chamber, and the bottom part is installed to keep it horizontal in the direction in which the water flows out by the support legs, and the side walls are installed so that the water flows out a sand guiding unit which is formed to become narrower in the direction and guides the sand and soil moved by the jetting unit toward the receiving groove;
the accommodating groove provided at an end portion through which water flows out of the sediment guiding portion and having an upper end portion equal to or lower than a bottom portion of the sediment guiding portion;
A pumping unit for pumping the sand and soil accommodated in the receiving groove to be accommodated in a separate hopper provided on the upper side of the water surface;
the injection part
A first operation of sweeping sand and soil to the end of the water outflow while moving a first section set in the direction of water inflow from the end of the water induction unit where the water flows out;
After completion of the first operation, sand and soil are moved from the end of the sediment induction part where water flows out to the end where water flows out while moving through a second section set longer than the length of the first section in the direction in which water flows in. a second operation of sweeping;
After the second operation is completed, sand and soil are moved from the end of the sediment induction part where water flows out to the end where water flows out while moving through a third section set longer than the length of the second section in the direction where water flows in. A third operation of sweeping; characterized in that it repeatedly performs.
The method of claim 1, wherein a blocking plate is installed in the bucket accommodating part in a direction in which sand and soil are introduced to be rotatable by a hinge and a cylinder, and the blocking plate is installed to close a part of the upper part of the bucket accommodating part, , When erected, the sand or soil is prevented from flowing into the bucket receiving unit.
The method of claim 2, wherein a blocking plate is installed in the receiving groove in a direction in which sand and soil are introduced to be rotatable by a hinge and a cylinder, and the blocking plate is installed to close an upper part of the receiving groove, When erected, sand or soil is prevented from flowing into the receiving groove.
The method of claim 1, wherein the injection unit
a distribution pipe installed in the width direction of the channel or the grit chamber;
a plurality of nozzles branched from the distribution pipe and formed in an oblique direction toward the bucket accommodating portion;
a submersible pump that sucks water from the waterway or the grit chamber and supplies it to the distribution pipe;
A sink lifter, characterized in that composed of; a moving motor for moving the distribution pipe on the rail.

Images