KR101030086B1 - dredging system for multipurpose use driven by hydraulic system - Google Patents

Abstract

An embodiment of the present invention enables the dredging operation of solidified sludge of livestock manure stored for a long time and when the distance between a dredging vehicle and a dredging object is long, and after discharging the sludge of the sludge tank, It is possible to remotely clean by spraying high pressure washing water on the attached sludge, and it is composed of a vehicle mounted type to enable dredging work and washing of structures or buildings, and to a hydraulically driven multi-purpose dredging system that controls components hydraulically. It is about. In the hydraulically driven multi-purpose dredging system according to an embodiment of the present invention, a dredging vehicle, a washing apparatus for spraying the sludge tank and the washing water tank mounted on the dredging vehicle, the washing water in the washing water tank at a high pressure to the dredging target, building or structure And a washing apparatus provided inside the sludge tank to inject the washing water into the sludge tank, a vacuum pump for sucking the sludge of the dredging object into the sludge tank by forming a vacuum in the sludge tank, and a sludge of the dredging object. A submersible pump suctioned and transferred to the oni tank, and a hydraulic system generating hydraulic pressure to drive the washing apparatus, the cleaning apparatus, the vacuum pump, and the submersible pump.

Washing, dredging, sludge, hydraulic, submersible pump, vacuum pump, high pressure water pump, derrick, washing equipment

Description

Hydraulically Driven Dredging System {dredging system for multipurpose use driven by hydraulic system}

The present invention enables the dredging operation of the solidified sludge of livestock manure stored in the case of a long distance between the dredging vehicle and the dredging object, and after discharge of the sludge of the sludge tank, the high pressure on the sludge attached to the inner wall or level gauge The present invention relates to a hydraulically driven multi-purpose dredging system that can be cleaned remotely by spraying washing water.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulically driven multi-purpose dredging system utilized for sludge dredging operations of water and sewage pipes, wastewater treatment facilities, and liquid storage tanks, and for cleaning external walls of structures and buildings such as tunnel walls or soundproof walls of roads.

The present invention is a vehicle-mounted type, dredging sludge to be dredged in a stationary state, and washes the tunnel wall, soundproof wall and outer wall of the building in the running state, in addition to the conventional vehicle-mounted water and sewage pipe dredging system The present invention relates to a hydraulically driven multi-purpose dredging system that hydraulically drives each component.

For example, the conventional vehicle-mounted water and sewage pipe dredging system (hereinafter, referred to as a "dredging system") is configured to dredge sludge using an air suction vacuum pump and transfer and store the sludge into the tank of the dredging vehicle.

In a conventional air suction dredging system, the suction head is limited to 7 m, for example, when using a single-stage Roots blower. Therefore, in the dredging system, when the depth of dredging object is more than 7m, or located in the place about 30 to 50m away from the dredging object, it was difficult to dredge the sludge and transport it to the sludge tank or to dredge the sludge of the livestock manure storage tank.

The dredging system uses an engine of a dredging vehicle as a power source, and is configured to drive a high pressure water pump and a vacuum pump through a drive belt. Therefore, in the conventional dredging system, the driving belt may be damaged during the overload operation, which requires frequent maintenance work. In addition, when the level gauge of the sludge tank breaks down, the sludge may flow into the vacuum pump, which may damage the vacuum pump.

The dredging system needs to discharge the sludge from the sludge tank, open the lid of the sludge tank, and clean the remaining sludge attached to the inner wall of the sludge tank and the level gauge. This cleaning operation depends on manpower.

An embodiment of the present invention enables dredging of solidified sludge of livestock manure when the distance between a dredging vehicle and a dredging object is distant (for example, 50 m or more) and stored for a long time. The present invention relates to a hydraulically driven multi-purpose dredging system which can be cleaned remotely by spraying high pressure washing water on sludge attached to an inner wall or level gauge after discharge.

One embodiment of the present invention relates to a hydraulically driven multi-purpose dredging system that is configured as a vehicle-mounted type to enable dredging work and cleaning of structures or buildings.

One embodiment of the present invention relates to a hydraulically driven multi-purpose dredging system for hydraulically controlling components for performing sludge dredging and washing operations.

In the hydraulically driven multi-purpose dredging system according to an embodiment of the present invention, a dredging vehicle, a washing apparatus for spraying the sludge tank and the washing water tank mounted on the dredging vehicle, the washing water in the washing water tank at a high pressure to the dredging target, building or structure And a washing apparatus provided in the sludge tank to spray the washing water into the sludge tank, a vacuum pump for sucking the sludge of the dredging object into the sludge tank by forming a vacuum in the sludge tank, and a sludge of the dredging object. It may include a submersible pump for suctioning and transporting to the oni tank, and generating a hydraulic pressure to drive the washing device, the cleaning device, the vacuum pump, and the submersible pump.

The washing apparatus may include a high pressure water pump for supplying the washing water at a high pressure, and may be provided outside the sludge tank to spray the washing water supplied from the high pressure water pump to clean the outer wall of the structure or building. .

The washing apparatus may include a water supply valve installed outside the sludge tank and connected to the high pressure water pump to regulate the supply of the washing water, a washing water pipe installed inside the sludge tank and connected to the water supply valve, and the washing Installed in the water pipe may include a cleaning nozzle for spraying the washing water.

The washing water pipe may be formed in an arc shape along the inner wall of the onit tank.

The sludge tank and the wash water tank may be partitioned into partitions.

The cleaning nozzle may be provided in plural in the cleaning water pipe, and may form a spraying direction toward the level gauge in the partition and the sludge tank.

The washing apparatus includes a washing derrick mounted on the dredging vehicle and hydraulically driven, a washing nozzle mounted on the washing derrick and connected to the washing water tank with a washing water hose to spray the washing water, and the washing water hose. It may include a protective thrill.

The washing derrick is a rotary shaft rotatably mounted to the mounting table of the dredging vehicle, one end is mounted to the rotary shaft by a derrick boom hinge, the other end of the derrick boom to mount the washing nozzle, and the derrick boom and Is installed between the installation, it may include a hydraulic cylinder for lifting the derrick boom by the stretching action.

The washing derrick may include a wheel gear formed on an outer circumference of the rotating shaft, a pinion gear coupled to the wheel gear, and a washing derrick hydraulic motor for driving the pinion gear.

The washing derrick is provided with the washing nozzle on one side and the washing nozzle link is mounted to the derrick boom on one side, one end is connected to the washing nozzle link and the other end is connected to the derrick boom to steer the washing nozzle It may include a hydraulic cylinder.

The vacuum pump is connected to the sludge tank with a suction pipe to form a negative pressure, and transfers the sludge to the sludge tube connected to the sludge tank, and the submersible pump is connected to the sludge tank with a discharge hose to dredge the sludge. Can be transferred.

The hydraulically driven multi-purpose dredging system according to an embodiment of the present invention further includes a level meter installed inside the ont tank to detect the sludge level inside the ont tank to control the vacuum pump and the submersible pump. The level meter may include a float moving up and down in accordance with the sludge level in the sludge tank, a level indicator connected to the prote and installed outside of the sludge tank, and a level switch operated on and off according to the sludge level of the fret tank. have.

Hydraulic drive type multi-purpose dredging system according to an embodiment of the present invention, one side is connected to the high-pressure water pump and the other side further comprises a dredging hose having a dredging nozzle, and a dredging hose reel to supply the dredging hose. Can be.

The hydraulic device includes a high pressure oil pump, a low pressure oil pump, and an oil cooler for cooling the hydraulic oil driven by the engine of the dredging vehicle to supply high pressure oil and low pressure oil, respectively, and the oil cooler circulates the hydraulic oil. And a cooling duct attached to the cooling tube to radiate heat, and a cooling duct for supplying cooling air to the cooling tube.

The hydraulic device, a high pressure water pump hydraulic motor for operating the high pressure water pump, a high pressure water pump control valve for controlling the hydraulic pressure supplied to the high pressure water pump hydraulic motor, a vacuum pump hydraulic motor for operating the vacuum pump, the vacuum A vacuum pump control valve for controlling the hydraulic pressure supplied to the pump hydraulic motor, and a submersible pump hydraulic motor for operating the submersible pump, a submersible pump control valve for controlling the hydraulic pressure supplied to the submersible pump hydraulic motor, the high pressure oil The pump is connected to the high pressure water pump hydraulic motor, the vacuum pump hydraulic motor and the submersible pump hydraulic motor to supply high pressure oil, the low pressure oil pump, the high pressure water pump control valve, the vacuum pump control valve and the It can be connected to the submersible pump control valve to supply low pressure oil.

As such, according to an embodiment of the present invention, since the hydraulically driven submersible pump is applied, even when the distance between the sludge tank and the dredging target (for example, the collecting pipe or the storage tank) is far (for example, 50 m or more) It is possible to work and it is possible to dredge solidified livestock manure stored for a long time.

Since the washing device is mounted on the dredging vehicle, there is an effect of enabling the washing work on the road structure or building.

Since the cleaning device is provided inside the tank, it facilitates the cleaning work inside the tank, which is dependent on manpower, and also frequently cleans the inner part of the tank of the level system installed in the tank to maintain the state of the level system normally. It has the effect of automatically stopping or blocking the sludge from being sucked into the vibration pump in advance.

Equipped with a hydraulic device, the high pressure water pump, vacuum pump and submersible pump are driven by each hydraulic motor, and each hydraulic motor is controlled by a solenoid control valve, thereby enabling remote control and precise control. .

In the hydraulic system, the hydraulic circuit is composed of a closed type, and the operating oil is separated into the high pressure oil and the low pressure oil and applied to the hydraulic motors, the hydraulic cylinders and the control valves, respectively, thereby increasing the driving force of the hydraulic motors, and reducing the installation area and the hydraulic oil capacity. It is effective. Therefore, in a limited loading capacity, the capacity of the sludge tank of the dredging vehicle can be increased to load a large amount of sludge, and thus more dredging work can be performed.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

1 is a side view of a dredging vehicle to which the hydraulic drive-type multi-purpose dredging system according to an embodiment of the present invention, Figure 2 is a plan view of Figure 1, Figure 3 and the washing water tank in the hydraulic-driven multi-purpose dredging system of Figure 1 A side view (a) and a cross-sectional view (b) of the sludge tank, and FIG. 4 is a flow chart of the washing water, the cleaning device and the dredging nozzle in the hydraulically driven multi-purpose dredging system of FIG.

Referring to Figures 1 to 4, schematically, the hydraulically driven multi-purpose dredging system (hereinafter referred to as "dredging system") 1000 of one embodiment is to selectively carry out dredging, washing and cleaning operations. It is formed to be.

Dredging vehicle (V) is equipped with a wash water tank (1) containing a wash water to be sprayed, and a sludge tank (3) for storing dredged sludge. The wash water tank 1 and the sludge tank 3 are partitioned into partitions 2.

The dredging system 1000 according to an embodiment includes a washing unit 1100 connected to the washing water tank 1 for washing the washing target and washing of the washing target, and dredging connected to the sludge tank 3 for dredging the dredging target. And a hydraulic apparatus 1300 for driving and supplying and controlling hydraulic pressure to the washing unit 1100 and the dredging unit 1200.

The cleaning unit 1100 is provided in the sludge tank 3 so as to clean the inside of the sludge tank 3 and to clean the outside of the sludge tank 3. 15 and a washing device 180 provided outside the onit tank 3 to wash the outer wall of the structure or building.

For example, the washing | cleaning apparatus 15 includes the water supply valve 19 provided in the outer wall of the sludge tank 3, the washing | cleaning water pipe 15a and the washing nozzle 15b which are provided in the sludge tank 3 inside. (See Figures 3 and 4).

The water supply valve 19 is connected to the high pressure water pump 113 and intermittently cleans the high pressure washing water supplied to the inside of the sludge tank 3 from the outside. Washing water pipe (15a) is formed of a stainless steel pipe is formed and installed in an arc shape along the inner wall of the tank (3) is connected to the water supply valve (19). A plurality of washing nozzles 15b are provided in the washing water pipe 15a, for example, 7 to 8, and are directed toward the partition 2 and the level meter 9, and spray high pressure water of about 200 bar.

According to the operation of the water supply valve 19, the high pressure washing water is injected through the water supply valve 19, the washing water pipe 15a, and the cleaning nozzle 15b, so that the inner wall of the tank 3, the partition 2, and the level meter The residual sludge adhered to (9) is washed (see Fig. 4). At the same time, the cleaning nozzle 15b cleans the level meter 9.

The dredging part 1200 further includes a level gauge 9 which is installed inside and outside the sludge tank 3. For example, the level meter 9 is connected to the lift 9a, the lift 9a, and the level indicator 9c which is installed outside of the sludge tank 3, and the float 9a according to the level of the sludge. And a level switch 9b which is turned on and off depending on the level (see Figs. 3 and 4).

When the level indicator 9c reaches the position "high" by the operation of the prot 9a, the level meter 9 is controlled by the solenoid control valve 111 (for example, the vacuum pump control) by the on operation of the level switch 9b. The vacuum pump hydraulic motor 110b connected to the valve 111b is stopped (see FIGS. 6 and 11).

1 to 4, the vacuum pump 10 will be described. The vacuum pump 10 forms a negative pressure in the sludge tank 3 through the suction pipe 11, and dredges the sludge through the sludge pipe 6 connected to the sludge tank 3 to transfer it to the sludge tank 3. To be.

FIG. 5 is a configuration diagram of the hydraulically driven multi-purpose dredging system of FIG. 1, and FIG. 6 is a hydraulic circuit diagram of a hydraulic device in the hydraulically driven multi-purpose dredging system of FIG. 1. 5 and 6, the vacuum pump 10 is driven by the vacuum pump hydraulic motor 110b, and the vacuum pump hydraulic motor 110b is controlled by the vacuum pump control valve 111b. Referring to Fig. 11, the vacuum pump control valve 111b is remotely controlled by the remote control circuit.

For reference, in FIG. 5, high pressure oil (thick solid line), low pressure oil (thick solid line), high pressure washing water (thick dashed line), recovery oil pressure (thin dashed line), and sludge (double dashed line) are respectively shown by different lines. In Fig. 6, the high pressure oil (thick solid line), the low pressure oil (thin solid line), and the recovery hydraulic pressure (single dashed line) are shown by different lines, respectively.

The cleaning device 15 improves the work efficiency by washing the sludge tank 3, which was dependent on manpower, with high-pressure washing water, and cleans the level meter 9 frequently so that the level meter 9 can operate normally. Can be maintained. Since the level meter 9 is maintained in a normal state, an accident in which the sludge is sucked into the vacuum pump 10 through the suction pipe 11 as the level is increased is prevented.

In order to prevent the accident of the vacuum pump 10, it is necessary to prepare for the failure of the level meter 9. For example, the sludge tank 3 has a cover 3a for discharging sludge on one side, and is formed in an opening / closing structure so as to visually monitor the sludge level of the sludge tank 3 with the lid 3a in the vertical direction. A plurality of inspection valves 24a, 24b, and 24c, for example, are arranged. By sequentially opening the test valves 24a, 24b, and 24c, it can be seen that the sludge is discharged, and the rough sludge level can be confirmed.

On the other hand, the high-pressure washing water supplied from the high pressure water pump 113 is a washing device 15, and the water collecting tank 300 (or wastewater treatment facility and liquid storage tank, or livestock waste storage tank) connected to the water and sewage pipe among dredging objects. Etc., hereinafter referred to as " storage tank " and the cleaning device 180.

To this end, the high-pressure water pump 113 is connected to the dredging nozzle 200 through the dredging hose reel 14 and the dredging hose (2011), the dredging nozzle 200 is a high pressure toward the inside of the water and sewage pipe that is dredging target during dredging. Spray the washing water to drop the sludge attached to the inner wall of the water and sewage pipe. At this time, the dropped sludge is collected in the sump 300 together with the washing water. In this state, the vacuum pump 10 is operated to suck the washing water and the sludge and transfer it to the sludge tank 3 through the sludge tube 6.

On the other hand, the high-pressure washing water supplied through the high pressure water pump 113, the dredging hose (2011) and the dredging nozzle 200 is excavated sludge of the livestock manure solidified in the storage tank due to long-term storage. At the same time, the submersible pump 16 sucks sludge and washing water in the storage tank, thereby facilitating and enabling dredging of the sludge (see FIGS. 4 and 5).

The submersible pump 16 may be applied to the dredge of the sump 300 connected to the water and sewage pipe instead of the vacuum pump 10. Therefore, the submersible pump 16 is not shown separately dredging the storage tank, it is shown as dredging the sump tank 300, like the vacuum pump (10).

In addition, the high pressure water pump 113 is connected to the washing nozzle (18m) through the washing water hose reel 17 and the washing hose (18k) of the washing device 180, the washing nozzle (18m) is the outer wall of the structure or building to be cleaned Spray high pressure wash water

The high pressure washing water supplied through the high pressure water pump 113, the washing hose 18k, and the washing nozzle 18m enables the washing operation of the structure or the building even while the dredging vehicle V is running (Figs. 4 and 5). And FIG. 10).

10 is a plan view (a) and a side view (b) of the cleaning derrick in the hydraulically driven multi-purpose dredging system of FIG. Referring to FIG. 10, the structure cleaning apparatus 180 is mounted on a dredging vehicle V and driven hydraulically with a washing derrick 18, mounted on the washing derrick 18, and connected to a washing water hose 18k. A washing nozzle 18m for spraying the washing water, and a washing water hosel 17 providing the washing water hose 18k.

For example, the washing derrick 18 is a two-stage derrick boom 18p equipped with a washing nozzle 18m, a one-stage derrick boom 18g connected to a two-stage derrick boom 18p, and a one-stage derrick boom 18g. ) Is coupled to the boom hinge 18e and mounted to the outer periphery of the rotating shaft 18a mounted on the mounting table B, the support bearing 18b supporting the rotating shaft 18a, the spacer ring 18c, and the rotating shaft 18a. Stretching by connecting the wheel gear 18n, the pinion gear 18d connected to the wheel gear 18n, the hydraulic motor 110g for driving the pinion gear 18d, and the first stage derrick boom 18g and the mounting table B. It includes an hydraulic cylinder 114b that lifts the first derrick boom 18g in operation.

The washing derrick 18 adjusts the lifting height of the first-stage derrick boom 18g by the operation of the hydraulic cylinder 114b, and rotates the rotary shaft 18a by the driving of the hydraulic motor 110g to position the washing nozzle 18m. Adjust The operation of a hydraulic cylinder (not shown) or a hydraulic motor (not shown) connecting the first and second derrick booms (18g, 18p) may extend the second stage derrick boom (18p) from the first stage derrick boom (18g). have. Since the rotating shaft 19a rotates on the mounting table B through the pinion gear 18d and the wheel gear 18n by driving the hydraulic motor 110f, the turning angle of the washing derrick 18 is adjusted.

The washing nozzle 18m is mounted to the two-stage derrick boom 18p via the washing nozzle link 18l in a structure which can be turned. That is, the washing nozzle link 18l is equipped with a washing nozzle 18m on one side and connects a hydraulic cylinder 18j steering to the other side. The hydraulic cylinder 18j is mounted to the two-stage derrick boom 18p by the hydraulic cylinder hinge 18i. When the hydraulic cylinder 18j is controlled, the direction of the washing nozzle 18m is adjusted up and down (or left and right (not shown)) through the washing nozzle link 18l to adjust the washing direction of the structure or the building. When the hydraulic cylinder 18j is connected to and controlled by a solenoid control valve (not shown), the vertical position of the washing nozzle 18m can be remotely controlled.

The dredging part 1200 is configured to drive one of the vacuum pump 10 and the submersible pump 16 to perform dredging work. If the dredging operation is not possible with the vacuum pump 10, the suction pipe 11 and the sludge pipe 6, the dredging operation is performed by the submersible pump 16 and the discharge hose 16e driven by the hydraulic motor 110f.

In the dredging unit 1200, the vacuum pump 10 is connected to the vacuum pump 10, the vacuum pump 10, and the sludge tank 3 to form a negative pressure in the sludge tank 3 as described above ( 11), a sludge pipe 6 for dredging sludge under negative pressure of the sludge tank 3 and transferring the sludge to the sludge tank 3, and a dredging derrick 7 for supporting the sludge pipe 6.

The submersible pump 16 side includes a submersible pump 16 submerged in the collection pipe 300 (or a storage tank), and a discharge hose 16e which connects the discharge port of the submersible pump 16 to the sludge tank 3. The submersible pump 16 forms a discharge head of about 30 m, so that the sludge tank V of the dredging vehicle V separated from the sump 300 (or storage tank) 50 m or more from the sump 300 (or storage tank) sludge connected to the water and sewage pipe. Up to (3) can be transported.

FIG. 7 is a plan view (a) and a side view (b) of a submersible pump in the hydraulically driven multi-purpose dredging system of FIG. 1, and FIG. 8 is a sludge pumping state diagram (a) of a submersible pump in the hydraulically driven multipurpose dredging system of FIG. And (b) and sectional drawing (c) of the impeller. 7 and 8, the submersible pump 16 is connected to one side of the impeller 16d driven by the hydraulic motor 110f, the pump casing 16a incorporating the impeller 16d, and the pump casing 16a. And a pump inlet pipe 16b.

The submersible pump 16 is submerged in the sludge in the collecting pipe 300 (or storage tank) of the water and sewage pipe during dredging, and has a size of 10 cm or less because the spacing between the impeller 16d and the pump casing 16a is 10 cm or more. The foreign substances and sludge are sucked into the pump inlet pipe 16b and transferred to the sludge tank 3 through a discharge hose 16e connected to the discharge port of the coupling flange 16c. At this time, between the submersible pump 16 and the sludge tank 3, that is, the length of the discharge hose (16e) is extended by 30m or more can smoothly suck and transport the sludge of the collecting pipe 300 (or storage tank).

In the dredging unit 1200 of one embodiment, when the distance between the collection pipe 300 (or the storage tank) and the sludge tank 3 is close, the vacuum pump 10 dredges the sludge inside the water and sewage pipe as in the prior art. Can be used to transfer to the sludge tank (3).

The submersible pump 16 is a distance between the water collecting pipe 300 (or storage tank) and the sludge tank 3 or when the size of the foreign matter is smaller than 10 cm and the water content is large, for example, a water purification plant or a sewage treatment plant. And it can be effectively used to dredge the sludge of the liquid storage tank to transfer to the sludge tank (3).

3 and 4 again, the method of discharging the sludge of the sludge tank 3 to a third place includes, for example, lifting the sludge tank 3 into the hydraulic cylinder 114a and tilting it. The sludge tank cover 3a coupled to the cover hinge 3b at one end of the tank 3 is opened, and the sludge is discharged from the sludge tank 3.

After discharging the sludge, 200 bar water is supplied to the high pressure water pump 113 to the washing device 15 connected to the washing water hose 2011, and the washing water is sprayed to the washing nozzle 15b of the washing device 15. Remove the remaining sludge inside the sludge tank (3) and sludge attached to the level meter (9). As described above, the cleaning operation efficiency of the sludge tank 3 which is dependent on the manpower is improved, and the level gauge 9 is kept in the normal state.

FIG. 5 is a configuration diagram of the hydraulically driven multi-purpose dredging system of FIG. 1, and FIG. 6 is a hydraulic circuit diagram of a hydraulic device in the hydraulically driven multi-purpose dredging system of FIG. 1. 5 and 6, the hydraulic apparatus 1300 includes solenoid control valves 111 and 112, a hydraulic motor 110 and a hydraulic cylinder 114 controlled by the control valves 111 and 112. do. The hydraulic apparatus 1300 may include a portable control panel (not shown) together with the control panel. The solenoid control valves 111 and 112 may be centrally controlled in a control panel (not shown). The portable control panel may remotely control the dredging derrick 7, the washing derrick 18, the dredging hose reel 14, and the washing water hosel 17 (see FIG. 11).

FIG. 11 is a remote control circuit diagram of a hydraulic apparatus in the hydraulically driven multi-purpose dredging system of FIG. Referring to FIG. 11, the hydraulic device 1300 is formed to be operated by the solenoid control valves 111 and 112 to electrically remotely control the plurality of hydraulic motors 110 and the hydraulic cylinders 114, and vacuum. The level switch 9b is operated at the "high" position of the level gauge 9 so that the sludge of the sludge tank 3 is not sucked into the pump 10 to automatically stop the vacuum pump 10, and the hose reel 14, 17) and the hydraulic motors 110c, 110d and 110g of the washing derrick 18 and the hydraulic cylinders 114a and 114b of the dredging derrick 7 and the washing derrick 18 are operated by limit switches. In case of departure, the hydraulic motor and the hydraulic cylinder are formed to stop.

For convenience, the level switch 9b for controlling the vacuum pump 10 will be described with reference to FIG. That is, the level switch 9b of the level meter 9 which operates according to the sludge level is connected to the vacuum pump control valve 111b, and the vacuum pump control valve 111b is a vacuum pump hydraulic motor for driving the vacuum pump 10. 110b) to control.

Referring to FIG. 6, in the hydraulic apparatus 1300, the power of the vehicle engine 101 directly drives the high pressure oil pump 103 and the low pressure oil pump 104 via the clutch 102, and the generated hydraulic pressure is According to the control of the solenoid control valve 111, that is, the high pressure oil is supplied to the hydraulic motor 110, the low pressure oil is supplied to the control valves 106, 111, 112 and the hydraulic cylinder 114, respectively.

The high pressure oil of about 300 bar drives the hydraulic motors 110 and the low pressure oil of about 120 bar drives the control valves 106, 111, and 112 and the hydraulic cylinders 114. In addition, the hydraulic apparatus 1300 is configured in a closed type to reduce the volume of the oil cooler 115 and the oil tank 116.

Since the high pressure oil and the low pressure oil pumps 103 and 104 are variable displacement type, the flow rate of the working oil can be controlled without changing the speed of the engine 101, and the relief valve can be used even when the hydraulic pressure rises or falls rapidly according to the load change. 107 and the pressure reducing valve 108 are operated to operate safely (see Figs. 5 and 6). In addition, the high pressure oil and the low pressure oil pumps 103 and 104 can prevent damage to the belt driving device or reduction gear and damage to the high pressure water pump 113 or the vacuum pump 10 which are frequently generated in the conventional dredging system. have.

The high pressure oil pump 103 is connected to each of the hydraulic motors 110 driving the high pressure water pump 113, the vacuum pump 10, the submersible pump 16, the washing device 180, and the cooling fan 115a. Supply high pressure hydraulic fluid of about 300 bar. The low pressure oil pump 104 supplies about 120 bar of hydraulic oil to each of the control valves 106, 111, and 112 and the hydraulic cylinders 114 applied to the dredging system 1000. The hydraulic apparatus 1300 is formed in a sealed type that can remotely control the hydraulic motors 110 and the hydraulic cylinders 114 and automatically stop.

More specifically, the high pressure oil of about 300 bar generated by the high pressure oil pump 103 is controlled by the servo valve 105 and the control valves 106a and 106b, and the flow rate and the flow path are also controlled by the control valves 111a and 111b. , The hydraulic motor 110a of the high pressure water pump 113, the hydraulic motor 110b of the vacuum pump 10, and the hydraulic motor of the submersible pump 16 through the control of, 111f, 111c, 111d, 111e, and 111g. 110f), the hydraulic motors 110c and 110d of the hose reels 14 and 17, the hydraulic motor 110e of the cooling fan 115e of the oil cooler 115, and the hydraulic motor 110g of the structure cleaning device 180. Are supplied respectively. Each hydraulic motor 110 is driven or stopped by the high pressure oil supplied and shut off by the control valve 111.

The low pressure oil of about 120 bar generated by the low pressure oil pump 104 is flow-controlled by the control valves 112a, 112b, and 112c, so that the tank lifting cylinder 114a and the washing derrick 18 of the sludge tank 3 are removed. Hydraulic cylinder 114b for lifting, hydraulic cylinder 114c for lifting dredging derrick, hydraulic cylinder 114d for separating dredging hose reel 14, hydraulic cylinder 18j for steering nozzle 18m and oni tank The cover 3a is supplied to a hydraulic cylinder 114, such as a hydraulic cylinder (not shown) that opens or locks. Each hydraulic cylinder 114 is operated or stopped by the low pressure oil supplied and shut off by the control valve 111.

In the dredging system 1000, the components are driven by the hydraulic motor 110 and the hydraulic cylinder 114, controlled by the solenoid control valves (111, 112), represented by a level switch or a limit switch (limit) Remote control of the components is possible by connecting the electrical signal of) to the control circuit.

When the position of the level indicator 9c reaches "high", the level switch 9b installed on the outer wall of the sludge tank 3 is activated, and the hydraulic motor 110b driving the vacuum pump 10 is automatically stopped. . Hydraulic cylinder 114d separating the dredging hose reel 14, hydraulic cylinder 3d lifting the sludge tank 3, hydraulic cylinder 18j lifting the washing device 180, hydraulic pressure of the submersible pump 16 Safe operation of the dredging system 1000 is possible by automatically stopping the operation of the components involved by the limit switch of the motor 110f and other components.

The control method of the level switch 9b, the vacuum pump 10, and the hydraulic motor 110b is the same as the control method of other components, and is not intended to be embodied in the present invention. The detailed description thereof will be omitted. Even if the detailed description is omitted, the dredging worker can easily understand.

9 is a front view (a) and a side view (b) of an oil cooler in the hydraulically driven multi-purpose dredging system of FIG. Referring to FIG. 9, the hydraulic apparatus 1300 is cooled by the cooling air of the cooling fan 115e driven by the hydraulic motor 110e to cool the temperature of the hydraulic oil, and is air-cooled to prevent the temperature of the hydraulic oil from rising and the viscosity falling. An oil cooler 115 is provided.

For example, the oil cooler 115 may include a cooling tube 115a formed of stainless steel, a cooling fan 115b made of copper plate attached thereto, and a high pressure water connector 115c for supplying high-pressure cooling water of the cooling tube 115a. And a cooling duct 115d for supplying cooling air from the cooling fan 115e to the cooling tube 115a. The high pressure water connector 115c is connected to the high pressure water pump 113 through a dredging hose 2011 (see FIG. 5).

12 to 14, the dredging nozzle 200 may be appropriately selected according to the diameter or sludge attachment state of the water and sewage pipe or storage tank to be dredged.

The dredging nozzle 200 of FIG. 12 includes a nozzle body 201 and an eccentric weight 203 formed below the nozzle body 201 and a dredging hose 2011 connected to the side of the nozzle body 201. The connector 240 is provided, and a plurality of nozzle tips 202 are provided above the nozzle body 201. The nozzle tip 202 forms an upward spray direction with respect to the center parallel of the nozzle body 201.

The dredging nozzle 2200 of FIG. 13 includes a nozzle body 2201 and a hose connector 2240 to which a dredging hose 2011 is connected to the side of the nozzle body 2201, and in the circumferential direction of the nozzle body 2201. A plurality of nozzle tips 202 are provided.

The dredging nozzle 3200 of FIG. 14 includes a nozzle body 3201 and a hose connector 3240 to which a dredging hose 2011 is connected to the side of the nozzle body 3201, and in the circumferential direction of the nozzle body 2201. A plurality of nozzle tips 202 are provided.

The dredging nozzle 3200 of FIG. 14 is smaller in size than the dredging nozzle 2200 of FIG. 13 and has fewer nozzle tips 202. 15 illustrates a nozzle tip 202 of one embodiment.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

1 is a side view of a dredging vehicle to which the hydraulic drive-type multi-purpose dredging system according to an embodiment of the present invention.

2 is a plan view of FIG.

3 is a side view (a) and a cross-sectional view (b) of the wash water tank and the sludge tank in the hydraulically driven multipurpose dredging system of FIG.

4 is a flow chart of the washing water of the washing apparatus, the washing apparatus and the dredging nozzle in the hydraulically driven multi-purpose dredging system of FIG.

5 is a configuration of the hydraulic drive-type multi-purpose dredging system of FIG.

6 is a hydraulic circuit diagram of a hydraulic apparatus in the hydraulically driven multi-purpose dredging system of FIG.

7 is a plan view (a) and a side view (b) of a submersible pump in the hydraulically driven multipurpose dredging system of FIG.

8 is a sludge pumping state diagram (a) of a submersible pump and a bottom view (b) and a sectional view (c) of a submersible pump in the hydraulically driven multipurpose dredging system of FIG.

9 is a front view (a) and a side view (b) of an oil cooler in the hydraulically driven multi-purpose dredging system of FIG.

10 is a plan view (a) and a side view (b) of the cleaning derrick in the hydraulically driven multi-purpose dredging system of FIG.

FIG. 11 is a remote control circuit diagram of a hydraulic apparatus in the hydraulically driven multi-purpose dredging system of FIG.

12 to 15 are cross-sectional views (a) and side views (b) of a dredging nozzle and a nozzle tip according to the first to third embodiments in the hydraulically driven multi-purpose dredging system of FIG.

<Explanation of symbols for the main parts of the drawings>

V: Dredging vehicle, B: Mounting table, 1000: Hydraulic driven multi-purpose dredging system (Dredging system, 1100: Washing unit, 1200: Dredging unit, 1300: Hydraulic system, 1: Washing water tank, 2: Partition, 3: Oni tank, 3b: cover hinge, 3a: tank tank cover, 9: level gauge, 9a: prote, 9b: level switch, 9c: level indicator, 10: vacuum pump, 11: suction pipe, 2011: dredging hose, 14: dredging hose reel, 15 : Washing device, 15a: washing water pipe, 15b: washing nozzle, 16: submersible pump, 16a: pump casing, 16b: pump inlet pipe, 16c: connecting flange, 16d: impeller, 16e: discharge hose, 17: washing water hose reel, 180: washing device, 18: washing derrick, 18k: washing water hose, 18m: washing nozzle, 18g, 18p: 1, 2 stage derrick boom, 18a: rotating shaft, 18b: support bearing, 18c: spacer ring, 18n: wheel gear, 18d: pinion gear, 18j: hydraulic cylinder, 18i: hydraulic cylinder hinge, 18l: cleaning nozzle link, 19: water supply valve, 101: vehicle engine, 102: clutch, 103: high pressure oil pump, 104: low Oil pump, 105: Servo valve, 113: High pressure water pump, 24a, 24b, 24c: Inspection valve, 110, 110a, 110b, 110c, 110d, 110e, 110f, 110g: Hydraulic motor, 111, 112, 106a, 106b: Control valve, 114, 114a, 114b, 114c, 114d: Hydraulic cylinder, 115: Oil cooler, 115a: Cooling pipe, 115b: Cooling fan, 115c: High pressure water connector, 115d: Cooling duct, 115e: Cooling fan, 200: Dredging Nozzle, 300: sump (or storage tank)

Claims (15)

Dredging vehicle; A sludge tank and a washing water tank mounted on the dredging vehicle; A washing device for spraying the washing water in the washing water tank at a high pressure to a dredging object, a building or a structure; A washing apparatus provided in the on-tank tank and spraying the washing water into the on-tank tank; A vacuum pump for sucking the sludge of the dredging object into the sludge tank by forming a vacuum in the sludge tank; A submersible pump for sucking the sludge of the dredging object and transferring the sludge to the sludge tank; And A hydraulic device for generating hydraulic pressure to drive the cleaning device, the cleaning device, the vacuum pump, and the submersible pump; The washing device, High pressure water pump for supplying the washing water at high pressure, A washing derrick mounted on the dredging vehicle from the outside of the tank and driven hydraulically; And a washing nozzle mounted to the washing derrick and connected to the washing water tank with a washing water hose to spray the washing water supplied from the high pressure water pump. delete According to claim 1, The cleaning device, A water supply valve installed outside of the sludge tank and connected to the high pressure water pump to control the supply of the washing water; A washing water pipe installed inside the sludge tank and connected to the water supply valve, and A hydraulically driven multi-purpose dredging system including a washing nozzle installed in the washing water pipe to spray the washing water. The method of claim 3, The washing water pipe, A hydraulically driven multi-purpose dredging system is formed in an arc shape along the inner wall of the oni tank. 5. The method of claim 4, And the sludge tank and the washing water tank are partitioned into partitions. 6. The method of claim 5, The cleaning nozzle, A plurality of hydraulic drive type dredging system is installed in the washing water pipe, and forming a spraying direction toward the level gauge in the partition and the sludge tank. According to claim 1, The washing device, A hydraulically driven multi-purpose dredging system further comprising a washing water hosel to provide the washing water hose. 8. The method of claim 7, The washing derrick, A rotating shaft rotatably mounted to the mounting table of the dredging vehicle, A derrick boom having one end mounted on the rotating shaft with a derrick boom, and the other end mounted with the washing nozzle; A hydraulically driven multi-purpose dredging system is installed between the derrick boom and the mounting table, and includes a hydraulic cylinder for lifting the derrick boom by a telescopic action. 8. The method of claim 7, The washing derrick A wheel gear formed on an outer circumference of the rotating shaft, A pinion gear coupled to the wheel gear and Hydraulic driven multi-purpose dredging system comprising a washing derrick hydraulic motor for driving the pinion gear. 8. The method of claim 7, The washing derrick, A washing nozzle link provided with the washing nozzle on one side and mounted on the derrick boom on the other side; And a hydraulic cylinder, one end of which is connected to the cleaning nozzle link and the other end of which is connected to the derrick boom, to steer the cleaning nozzle. 8. The method of claim 7, The vacuum pump is connected to the sludge tank with a suction pipe to form a negative pressure, and transfers the sludge to the sludge tube connected to the sludge tank, The submersible pump is a hydraulic drive-type multi-purpose dredging system that is connected to the sludge tank by a discharge hose to transfer the dredged sludge to the sludge tank. 12. The method of claim 11, It is further provided with a level gauge which is installed inside the oni tank to control the vacuum pump and the submersible pump by detecting the oni level inside the oni tank, The level meter, Freight lifting in accordance with the sludge level in the onit tank, A level indicator connected to the prote and installed outside the onit tank; and A hydraulically driven multi-purpose dredging system comprising a level switch that is turned on and off in accordance with the sludge level of the prote. 13. The method of claim 12, A dredging hose having one side connected to the high pressure water pump and having a dredging nozzle at the other side; A hydraulically driven multi-purpose dredging system further comprising a dredging hose reel for supplying the dredging hose. The method of claim 1 The hydraulic device, A high pressure oil pump and a low pressure oil pump driven by an engine of the dredging vehicle to supply high pressure oil and low pressure oil, respectively; An oil cooler for cooling the working oil, The oil cooler, A cooling tube circulating the working oil, A cooling fan attached to the cooling tube to radiate heat, and A hydraulically driven multi-purpose dredging system comprising a cooling duct for supplying cooling air from the cooling fan to the cooling pipe. The method of claim 14, The hydraulic device, High pressure water pump hydraulic motor for operating the high pressure water pump, high pressure water pump control valve for controlling the hydraulic pressure supplied to the high pressure water pump hydraulic motor, A vacuum pump hydraulic motor for operating the vacuum pump, a vacuum pump control valve for controlling the hydraulic pressure supplied to the vacuum pump hydraulic motor, and Submersible pump hydraulic motor for operating the submersible pump, including a submersible pump control valve for controlling the hydraulic pressure supplied to the submersible pump hydraulic motor, The high pressure oil pump, It is connected to the high pressure water pump hydraulic motor, the vacuum pump hydraulic motor and the submersible pump hydraulic motor to supply high pressure oil, The low pressure oil pump, A hydraulically driven multi-purpose dredging system connected to the high pressure water pump control valve, the vacuum pump control valve and the submersible pump control valve to supply low pressure oil.

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