KR102023727B1 - Combined dredging method of tree root cutting in sewer line - Google Patents

Abstract

The present invention relates to a combined dredging method of tree root cutting in a sewer pipe to remove a tree root penetrated into a sewer pipe together with sludge deposited in the sewer pipe. The present invention comprises: a step of photographing the inside of a sewer pipe with CCTV; a step of injecting a waterjet crusher into the sewage pipe; a step of dredging sludge deposited in the sewer pipe with water sprayed from a nozzle hole of the waterjet crusher; a step of removing the tree root penetrating into the sewer pipe by a rotary blade rotating by a rotary nozzle of the waterjet crusher; a step of recovering the waterjet crusher from the sewer pipe; a step of inserting a cutting robot into the sewer pipe; a step of removing residual tree roots with a rotary saw provided on the cutting robot; a step of recovering the cutting robot from the sewer pipe; and a step of inserting the waterjet crusher into the sewage pipe and spraying water to clean the inside of the sewage pipe.

Description

Combined dredging method of tree root cutting in sewer line}

The present invention relates to a sewer pipe dredging method, and more particularly, to a tree dredge cutting complex dredging method for removing the tree roots penetrated into the sewer pipe with sludge deposited in the sewer pipe.

Generally, a sewage pipe for treating sewage discharged from a home or a business place, or a rainwater pipe for discharging rainwater into a river is buried underground, and sewage pipe and rainwater pipe are collectively called sewage pipe. These sewage pipes are used to connect a plurality of rainwater or sewage to the sewage treatment plant or river, and the drainage pipe for collecting sewage and rainwater and transporting them to the sewage treatment plant and discharge area is called sewage pipe.

By the way, in the pipeline of the sewage pipe, sludge generated over time or foreign matter flowing from the outside is accumulated, there is a problem that the sewage or rainwater does not flow smoothly downstream. In addition, there is a problem that odor is generated through the manhole due to foreign matter, sludge, sediment, etc. (hereinafter 'sludge') accumulated on the bottom of the sewer pipe.

In addition, in the case of sewage pipes, in general, since the groundwater is mainly buried underground or flowing water including sewage, tree roots of tree trees grow internally through the joints of the sewer pipes, thereby destroying the sewer pipes, and obstruct the flow of sewage in the sewer pipes. In addition, the actual passage area is decelerated, causing a problem of backflow of sewage during flooding.

The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a method for cutting and dredging tree roots in a sewer pipe to remove sludge that has penetrated into the sewer pipe and sludge deposited in the sewer pipe.

It is another object of the present invention to provide a dredging tree root cutting complex dredging method that can easily restore the function of the sewer pipe using a waterjet shredding device and a cutting robot.

It is another object of the present invention to provide a dredging tree root cutting complex dredging method which can prevent the clogging of the sewer pipe by the growth of the tree root by inhibiting the growth of the removed tree root.

The above object of the present invention, the step of photographing the inside of the sewage pipe with CCTV; Injecting a water jet crushing device into the sewage pipe; Dredging the sludge deposited in the sewer pipe with water sprayed from the nozzle hole of the waterjet crusher; Removing the tree roots penetrating into the sewer by a rotary blade rotating by the rotary nozzle of the water jet crushing device; Recovering the waterjet crusher from the sewer pipe; Inserting a cutting robot into the sewer pipe; Removing residual tree roots with a rotary saw provided on the cutting robot; Recovering the cutting robot from the sewer pipe; And it can be achieved by providing the waterjet crushing apparatus in the sewer pipe tree root cutting complex dredging method comprising the step of injecting the water jet crushing device and spraying water to clean the inside of the sewer pipe.

According to one feature of the invention, after the step of cleaning the inside of the sewage pipe, it may further comprise the step of coating the cut portion of the tree root by spraying a growth inhibitor in the waterjet crushing device.

According to another feature of the invention, the water jet shredding device, a pipe-shaped body is supplied with high-pressure water, a plurality of guards protruding from each other at predetermined intervals along the outer periphery of the body, and the body of A water jet nozzle rotatably provided at a front end and formed with a plurality of nozzle holes along a circumference to inject the high pressure water, and formed at the front of the water jet nozzle to rotate integrally with the water jet nozzle and to rotate a plurality of turns along the circumference. The blade may include a rotary blade unit and a front blade unit provided in front of the rotary blade unit.

According to another feature of the invention, the water jet shredding device may further include a chemical injection unit is formed between the water jet nozzle and the rotary blade portion and a plurality of injection holes are formed along the circumference.

According to another feature of the invention, the water jet shredding device may further include a chemical supply pipe installed in the body to communicate with the injection port of the chemical injection unit.

According to another feature of the invention, the cutting robot, a self-propelled vehicle, a drive motor provided on the upper portion of the self-propelled vehicle, a drive gear coupled to the drive shaft of the drive motor, and can be rotated in front of the self-propelled vehicle And a driven gear that meshes with the drive gear, a support bracket hinged to the front of the driven gear, an inclined cylinder installed on one side of the support bracket and adjusting an inclination angle of the support bracket, and the support bracket. Rotating motor coupled to the end of the, and may include a rotary saw coupled to the rotary shaft of the rotary motor.

According to the combined dredging method of the tree root cutting in the sewer pipe according to the present invention, it is possible to easily remove the sludge deposited in the tree root and sewage pipe infiltrated into the sewer pipe by using the waterjet crushing device and the cutting robot.

In addition, according to the method of composite dredging tree root cutting in the sewer pipe according to the present invention, by suppressing the regrowth of the removed tree roots, there is an effect that can prevent the clogging of the sewer pipe and reduce the cost of maintenance.

1 is a flow chart of a method for cutting dredging tree roots in a sewer pipe according to an embodiment of the present invention.
2 is a perspective view of a waterjet shredding apparatus according to an embodiment of the present invention.
3 is a cross-sectional view of FIG.
4 is a perspective view of a cutting robot according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the embodiments described below are merely to describe in detail enough to be able to easily carry out the invention by those skilled in the art to which the present invention pertains, thereby limiting the protection scope of the present invention It does not mean. In describing various embodiments of the present invention, the same reference numerals will be used to refer to elements having the same technical features.

Example

1 is a flow chart of a method for cutting dredging tree roots in a sewer pipe in accordance with an embodiment of the present invention.

Hereinafter, with reference to Figure 1 will be described in detail step-by-step method of dredging tree root cutting complex dredging in accordance with an embodiment of the present invention.

CCTV inside sewer pipe (S10):

First, check the amount of sludge deposited inside the sewer pipe, whether the tree roots have penetrated, etc., and photograph the inside of the sewer pipe with CCTV to select the work order and necessary equipment.

At this time, if necessary, by installing a bypass pipe of the sewer pipe to be dredged so that the drainage of sewage continues during the operation, the installation of the bypass pipe can be performed at the stage before or after the shooting of the above-described CCTV.

On sewer Waterjet  Shredding device (S20):

2 is a perspective view of a waterjet crushing apparatus according to an embodiment of the present invention, Figure 3 is a cross-sectional view of Figure 2, the waterjet crushing device shown in Figures 2 and 3 is put into the sewage pipe required for dredging work.

The waterjet crushing apparatus 100 according to the embodiment of the present invention sprays the high pressure water backward and advances, and simultaneously pushes back the sludge deposited on the sewage pipe. At this time, the nozzle unit for spraying high-pressure water rotates by the driving force, by using the rotational force to crush the obstacle placed in the direction of travel, such as a tree root penetrated into the sewer pipe with a rotary blade.

As an example, the waterjet shredding apparatus 100 according to an embodiment of the present invention, as shown in the figure is a hollow pipe-like body 110, a plurality of protrusions formed along the outer periphery of the body 110 Guards 120, a waterjet nozzle 130 rotatably provided in front of the body 110, a rotary blade portion 140 formed in front of the waterjet nozzle 130, and a rotary blade portion 140 It may include a front blade unit 150 provided in front of the).

The body 110 is in the form of a hollow pipe and receives high pressure water through a water supply pipe (not shown) connected to the rear end of the body 110.

A plurality of guard parts 120 are formed to protrude from each other at predetermined intervals along the outer circumference of the body 110. The guard unit 120 is to prevent shaking or vibration during operation when the sewage pipe is inserted into the waterjet crushing apparatus 100, and each guard unit 120 is adjacent to the inner circumferential surface of the sewer pipe to prevent shaking of the body 110. Done.

The waterjet nozzle 130 is rotatably provided in front of the body 110. A plurality of nozzle holes 131 are formed in the outer circumferential surface of the waterjet nozzle 130 along the circumference, and the high pressure water supplied into the body 110 through the water supply pipe is sprayed to the outside through the nozzle hole 131. do. At this time, the nozzle hole 131 is injected obliquely at a predetermined angle toward the rear of the body 110, the water jet nozzle 130 is rotated about the center line of the body 110 by the reaction force, and at the same time the body ( 110 moves forward.

The front of the waterjet nozzle 130 is provided with a rotary blade 140 that rotates integrally with the waterjet nozzle 130. A plurality of connecting chains 141 are coupled along the circumference of the rotary blade unit 140, and each of the connecting chains 141 has one end coupled to the rotary blade unit 140 and a rotary blade 142 at the other end thereof. . Accordingly, a plurality of rotary blades 142 rotates around the rotary blade unit 140 together with the connection chain 141 at the time of rotation of the rotary blade unit 140, so as to hit the wood roots penetrated into the sewer pipe to be broken. do.

In front of the rotary blade unit 140 is provided with a front blade unit 150 that rotates with the rotary blade unit 140. The front blade 151 is formed on the front of the front blade unit 150, the front blade 151 rotates during the forward movement of the waterjet shredding device 100 serves to crush the tree roots or other obstacles entangled in the front do. The foreign matter such as crushed tree roots are pushed backward along the sewer pipe by the high pressure water sprayed from the waterjet nozzle 130.

On the other hand, between the waterjet nozzle 130 and the rotary blade 140 is provided with a chemical injection unit 160 is formed with a plurality of injection holes 161 along the circumference. The chemical injection unit 160 may rotate integrally with the waterjet nozzle 130 and the rotary blade unit 140. As another example, the chemical injection unit 160 is fixed to the waterjet nozzle 130 and It is also possible to rotate only the rotary blade unit 140.

The chemical injection unit 160 is for injecting a drug such as a growth inhibitor (eg, herbicide) to the cut portion of the tree roots penetrated into the sewer pipe, and may spray a synthetic resin such as rubber or silicone, if necessary. The drug supply pipe 162 communicates with the injection hole 161 of the chemical injection part 160 is installed inside the body 110, and the chemical supplied from the outside to the cutting portion of the tree root through the injection hole 161. Sprayed.

Sedimentation sludge dredging of sewer pipe (S30):

Referring back to FIG. 1, when the high-pressure water is supplied to the waterjet crusher 100 introduced into the sewer pipe, the waterjet crusher 100 moves forward while the high-pressure water is injected backward from the waterjet nozzle 130 by a predetermined angle. At this time, the sewage pipe dredging operation is performed while the sludge deposited on the sewage pipe is pushed backward along the sewage pipe by the high pressure water sprayed from the waterjet nozzle 130.

Removal of tree roots penetrated into sewer pipes (S40):

Water jet shredding device 100 is a driving force is generated by the high pressure water is injected obliquely at a predetermined angle to the rear, the water jet nozzle 130, the rotary blade 140 and the front blade 150 is advanced while rotating, rotate The tree root inside the sewer pipe is crushed by the rotary blade 142 of the blade 140 and the front blade 151 of the front blade 150.

That is, the waterjet crushing apparatus 100 advances along the sewer pipe while crushing the tree roots penetrated into the sewer pipe, and the crushed tree root or the obstacle is pushed to the rear of the sewer pipe by water sprayed at high pressure.

In sewer Waterjet  Shredding Device Recovery (S50):

After the tree roots infiltrated into the sewer pipe or the foreign matter blocking the sewer pipe are crushed and removed, the water jet crushing device 100 is recovered from the sewer pipe. For example, the waterjet crushing apparatus 100 may be removed from the sewage pipe by pulling a water supply pipe or a separate recovery cable (not shown).

On sewer Cutting robot  Input (S60):

Figure 4 is a perspective view of a cutting robot according to an embodiment of the present invention, the cutting robot as shown in Figure 4 is introduced into the sewer pipe.

Cutting robot 200 according to an embodiment of the present invention is to remove the residual tree roots remaining in the sewage pipe, self-driving car 210, the drive motor 220 is supported on the top of the self-driving car 210, Drive gear 230 rotated by the drive motor 220, driven gear 240 provided in front of the self-propelled vehicle 210 to mesh with the drive gear 230, coupled to the front of the driven gear 240 Rotation by the support bracket 250, the inclined cylinder 260 installed on one side of the support bracket 250, the rotary motor 270 coupled to the end of the support bracket 250, and the rotary motor 270 It includes a rotary saw 280.

Here, the self-propelled vehicle 210 is to move forward or backward along the sewer pipe by its own power, as shown in the figure may be provided with a plurality of wheels 211 at the bottom, or as another example may be provided with a caterpillar. The forward and rearward movement of the self-propelled vehicle 210 and the operation control of the driving motor 220, the tilt cylinder 260, and the rotation motor 270 which will be described later may be performed by a separate controller outside the sewer pipe.

The drive motor 220 is provided on the upper portion of the self-propelled vehicle 210, and the drive gear 230 is coupled to the drive shaft of the drive motor 220.

In addition, the driven gear 240 is rotatably coupled to the front of the self-propelled vehicle 210, and the driven gear 240 meshes with the driving gear 230. That is, when the driving gear 230 is rotated by the operation of the driving motor 220, the driven gear 240 meshing with the driving gear 230 rotates in front of the autonomous vehicle 210.

The support bracket 250 is hinged to the front of the driven gear 240. In more detail, a pair of coupling parts 241 protrude from the front surface of the driven gear 240, and rear ends of the pair of link members 251 are hinged to both sides of each coupling part 241, respectively. The front end of the link member 251 is coupled to the motor bracket 252.

One side of the support bracket 250 is coupled to the inclined cylinder 260, the rear end of the inclined cylinder 260 is hinged to the front of the driven gear 240, the cylinder rod of the inclined cylinder 260 is a link member (251) Hinge is coupled to one side. Accordingly, the inclination angle of the support bracket 250 is changed according to the stretching operation of the inclined cylinder 260. For example, when the cylinder rod of the inclined cylinder 260 is extended, the front end of the support bracket 250 is rotated downward to decrease the inclination angle. When the cylinder rod of the inclined cylinder 260 is reduced, the front end of the support bracket 250 is upward. Rotating angle increases.

The rotating motor 270 is coupled to the motor bracket 252. At this time, the rotary shaft of the rotary motor 270 is disposed perpendicular to the ground, the rotary saw 280 is coupled to the rotary shaft of the rotary motor 270.

On the other hand, as shown in the figure, the front end of the drive motor 220 may be coupled to the lighting bracket 292 is provided with the lamp 291 on both sides, the upper side of the support bracket 250 in the sewer pipe in the remote CCTV camera 293 is installed to check the working status. Therefore, CCTV photographing inside the sewer pipe may be performed by the cutting robot 200.

Residual Tree Root Removal (S70):

The cutting robot 200 moves forward toward the remaining tree roots inside the sewer pipe. When the movement to the appropriate position, the movement stops the drive motor 220 and the inclined cylinder 260 to make the rotary saw 280 to reach the remaining tree roots. At this time, by the operation of the drive motor 220, the rotary saw 280 is inclined obliquely in the left and right direction with respect to the self-propelled vehicle 210, the rotary saw 280 is elevated in the vertical direction when the inclined cylinder 260 is operated. do.

Thereafter, the rotary motor 270 is operated and the remaining tree roots are cut and removed with the rotary saw 280. If necessary, the driving motor 220 and the inclined cylinder 260 is operated so that the rotary saw 280 cuts and passes the remaining tree roots.

In sewer Cutting robot  Recall (S80):

After cutting and removing the remaining tree roots penetrated into the sewer pipe, the cutting robot 200 is recovered from the sewer pipe. For example, the cutting robot 200 may be retracted or the cutting robot 200 may be recovered from the sewer pipe by pulling a separate recovery cable connected to the cutting robot 200.

On sewer Waterjet  Internal cleaning after crushing device is inserted (S90):

The waterjet crushing apparatus 100 is put back into the sewage pipe, and the residual tree roots cut by the cutting robot 200 are moved to a place away. At this time, the remaining residual tree roots are pushed to the rear of the sewer pipe by the high pressure water sprayed from the nozzle hole 131 of the waterjet crushing apparatus 100 and removed from the sewer pipe.

Growth Inhibitor Injection (S100):

When the cut tree root grows, the sewer pipe is blocked by the tree root again after a certain time. Therefore, the above dredging work must be re-performed at regular intervals. There is a problem.

According to the dredging tree root cutting complex dredging method according to an embodiment of the present invention, in order to solve the problem, by spraying a growth inhibitor to the cut tree root to coat the cut site, the regrowth of the cut tree root is not delayed. Will be prevented.

For example, in the state of stopping the injection of high pressure water through the injection hole 161 of the chemical injection unit 160, it is possible to spray a chemical such as growth inhibitor supplied at a high pressure to the cut portion of the tree roots. At this time, the cut portion of the tree root is coated with a drug such as a growth inhibitor, and the growth is inhibited so that it can no longer grow into the sewer pipe.

On the other hand, in the sewer pipe root cutting complex dredging method according to an embodiment of the present invention, the above-described growth inhibitor injection (S100) step may be performed as necessary, without going through the growth inhibitor injection (S100) step Of course, you can proceed with the steps.

CCTV inside the sewer pipe (S110):

After the waterjet crushing device 100 is recovered from the sewer pipe, the inside of the sewer pipe is photographed by CCTV to inspect the dredging work result. At this time, it is of course possible to proceed with CCTV shooting using the above-described cutting robot (200). If there is no abnormality during CCTV inspection, dredging work is completed. If a bypass pipe is installed, the bypass pipe is dismantled and the sewage flows back to the sewer pipe. If the CCTV inspection is insufficient, the waterjet crushing apparatus 100 or the cutting robot 200 is put in again to perform the above-described specific steps.

Although the embodiments of the present invention have been described above, it will be understood by those skilled in the art that various modifications may be made without departing from the scope of the claims of the present invention.

100: water jet shredding device
110: body
120: guard part
130: waterjet nozzle
140: rotary blade part
150: front blade portion
160: drug injection unit
200: cutting robot
210: self-driving car
220: drive motor
230: drive gear
240: driven gear
250: support bracket
260: inclined cylinder
270: rotating motor
280: Spinning Top

Claims (6)

Photographing the inside of the sewer pipe with CCTV;
Injecting a water jet crushing device into the sewage pipe;
Dredging the sludge deposited in the sewer pipe with water sprayed from the nozzle hole of the waterjet crusher;
Removing the tree roots penetrating into the sewer by a rotary blade rotating by the rotary nozzle of the water jet crushing device;
Recovering the waterjet crusher from the sewer pipe;
Inserting a cutting robot into the sewer pipe;
Removing residual tree roots with a rotary saw provided on the cutting robot;
Recovering the cutting robot from the sewer pipe;
Injecting the water jet crushing device into the sewage pipe and spraying water to clean the inside of the sewage pipe; And
Injecting a growth inhibitor in the waterjet shredding device comprising the step of coating the cut portion of the tree root,
The water jet shredding device, the body of the pipe form is supplied with high pressure water, a plurality of guards protruding from each other at predetermined intervals along the outer periphery of the body, and rotatably provided at the front end of the body A water jet nozzle in which a plurality of nozzle holes are formed along a circumference to inject high pressure water, and a rotary blade unit formed in front of the water jet nozzle to rotate integrally with the water jet nozzle and having a plurality of rotary blades along a circumference; The front blade portion provided in front of the rotary blade portion, the water jet nozzle and the rotary blade portion is formed between the chemical injection portion formed with a plurality of injection holes along the circumference, and the body to communicate with the injection hole of the chemical injection portion Including a chemical supply pipe is installed inside the,
The cutting robot includes a self-propelled vehicle, a drive motor provided on an upper portion of the self-propelled vehicle, a drive gear coupled to a drive shaft of the drive motor, and rotatably provided in front of the self-propelled vehicle and engaged with the drive gear. A driven gear, a support bracket hinged to the front of the driven gear, an inclined cylinder installed at one side of the support bracket to adjust an inclination angle of the support bracket, a rotating motor coupled to an end of the support bracket, Dredged tree root cutting complex dredging method comprising a rotary saw coupled to the rotary shaft of the rotary motor. delete delete delete delete delete

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