CN218437267U - Dredging device and dredging ship - Google Patents

Abstract

The utility model provides a dredging device, which comprises a drill bit, a pipe body, a drill rod and a rotary driving part; the interior of the pipe body is divided into an extraction cavity and a delivery cavity by a partition, and the extraction cavity is connected to the extraction pipe. The delivery chamber communicates with the water injection pipe, the drill rod is arranged coaxially with the pipe body and the drill rod is rotatably arranged on the separator, the output end of the rotary drive part is connected to the upper end of the drill rod, and the drill bit is connected to the lower end of the drill rod. The dredging device of the utility model can directly go deep into the target layer for dredging, without removing the bottom mud of the upper layer, minimizes the destruction of the undisturbed soil on the bottom surface layer, and maintains the stable balance of the ecological system. The utility model also provides a dredging ship including the dredging device, which can realize the purpose of ecological dredging or sand and gravel mining.

Description

Dredging device and dredging ship

technical field

The utility model relates to the technical field of dredging equipment, in particular to a dredging device and a dredging ship.

Background technique

At present, for the dredging work at the bottom of the water, dredging ships at home and abroad mainly remove sediments such as silt at the bottom of the water body by means of winch suction, grab bucket, and rake suction, so as to complete the dredging and dredging construction of rivers, lakes, and reservoirs. For the dredging and cleaning construction in water areas where the water body pollution is not serious or the pollutant content in the sediment is not high, to increase the capacity of the regional water body, increase the cross-section of the regional water, widen the waterway and dig deep, etc., it will affect the biological community at the bottom of the water body. The damage to the basement mud layer is quite serious, even destructive, and it will take a long time to re-establish the underwater biome and other ecosystems.

In addition, the current dredging ships are also used for sand and gravel mining at the bottom of the water in addition to removing sediment from the bottom of the water. It is necessary to remove the upper covering layer to expose the sand layer, and then extend the sand suction pump into the sand layer for sand pumping construction, which will greatly disturb and damage the upper layer of soil, and at the same time, the upper layer of silt will silt back to the sand pumping area under the action of water flow As a result, impurities such as mud content in the suctioned sand and gravel are high, and it needs to be cleaned many times to meet the quality requirements of construction sand and gravel.

The utility model patent with the application number CN200920253134.9 provides a high-pressure water spray, reamer, drilling type sand suction equipment, which provides a drilling type sand suction device, which is different from the traditional twist suction, grab bucket, Methods such as raking and suction overcome the disadvantages of traditional methods to a certain extent, but they have the problems of low integration and small dredging range.

In summary, there is an urgent need for a dredging device and a dredging ship to solve the problems in the prior art.

Utility model content

The purpose of the utility model is to provide a dredging device, which aims to solve the shortcomings of the existing dredging methods, and the specific technical solutions are as follows:

A dredging device, comprising a drill bit, a pipe body, a drill pipe and a rotary drive; the interior of the pipe body is divided into an extraction chamber and a delivery chamber by a partition, the extraction chamber is connected to the extraction pipe, and the delivery chamber is connected to the water injection pipe , the drill rod is arranged coaxially with the pipe body and the drill rod is rotatably arranged on the separator, the output end of the rotary drive member is connected to the upper end of the drill rod, and the drill bit is connected to the lower end of the drill rod.

Preferably in the above technical solutions, the extraction pipe is connected to the slurry pump to discharge the dredged material at the drill bit through the extraction chamber and the extraction pipe; the water injection pipe is connected to the water pump to realize injection into the drill bit through the water injection pipe and the delivery chamber pressure water.

Preferably in the above technical solutions, the outer port of the extraction pipe and the outer port of the water injection pipe are both provided with connecting flanges.

Preferably in the above technical solutions, it also includes a horizontal expansion device; the horizontal expansion device includes a telescopic drive and a circular ring, and the circular ring is slidably sleeved on the outer wall of the pipe body near the end of the drill bit, and the conveying The outer wall of the chamber is provided with at least one pair of horizontal jet outlets, the ring member is provided with a water outlet, and the telescopic drive member drives the ring member to slide to realize the conduction or cutoff between the horizontal jet outlet and the water outlet.

Preferably in the above technical solutions, the centerlines of the two horizontal jet ports arranged in pairs are collinear.

In the above technical solutions, preferably, the extraction chamber is detachably provided with a filter at one end close to the drill bit, and the delivery chamber is detachably provided with a spray head at one end close to the drill bit.

The utility model also provides a dredging ship, which includes a hull, a telescopic support, a rotating bracket, lifting equipment and the dredging device. The lower end of the rotating bracket is connected to the hull in rotation, and the two ends of the telescopic supporting Rotate and connect the hull and the rotating bracket respectively, the rotating bracket is provided with a tank body for accommodating the dredging device, and the lifting device is connected to the dredging device for realizing that the dredging device is lowered from the tank body or stowed into the tank body .

Preferably in the above technical solutions, the lifting equipment includes a hoist, a steel wire rope and a fixed pulley, the hoist is arranged on the hull for retracting and unwinding the wire rope, the fixed pulley is arranged on the rotating bracket, and the wire rope goes around the fixed pulley. The pulley is then connected to the dredging device.

In the above technical solutions, preferably, the hoist and the rotating bracket are arranged on the hull through reinforcements; the hull is provided with a supporting portal frame, and the supporting portal frame is used to support the rotating bracket in an inclined state.

Preferably in the above technical solutions, the tank body is used to guide the lowering of the dredging device; the hull is provided with an operation room.

Applying the technical solution of the utility model has the following beneficial effects:

The dredging device of the utility model can directly go deep into the target layer for dredging without removing the bottom mud of the upper layer. While completing the dredging and cleaning of the lower layer, the undisturbed soil will naturally collapse and sink, so as to retain a certain thickness of undisturbed mud on the surface of the water bottom, minimize the damage of the undisturbed soil on the surface of the water bottom, maintain the stability and balance of the ecosystem, and realize ecological the purpose of dredging. In addition, the dredging operation takes place in the closed area at the bottom of the retention layer, which effectively reduces the spread of silt during construction, reduces the risk of water pollution caused by construction, and realizes the ecological protection of the dredging process.

Setting up the horizontal excavation device can expand the dredging range of a single hole, increase the construction capacity, and reduce the construction cost; through the dredging device, the capacity of the regional water body can be increased, the cross-section of the regional water can be increased, and the channel can be widened and the excavation depth can be increased. Purpose.

The dredging device of the utility model can be used for sand and gravel mining. Since it directly penetrates into the target layer for dredging, there is almost no disturbance to the covering layer containing biological communities and substrates during the entire dredging process, and the water body turbidity caused by soil disturbance is reduced. environment and mud diffusion; the soil and other impurities in the sand and gravel resources mined by dredging are low, and the medium-coarse sand and pebbles required for direct use in engineering construction can be obtained after only one cleaning and screening. At the same time, the equipment also reduces the amount of cleaning water and the amount of residual water to be treated in the later stage, which reduces the construction cost. At the same time, the space saved by the ship also leaves room for the subsequent process optimization and equipment addition.

In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. Below with reference to figure, the utility model is described in further detail.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation of the utility model. In the attached picture:

Fig. 1 is the overall structure schematic diagram of dredging device;

Fig. 2 is the sectional view of A-A place in Fig. 1;

Fig. 3 is the working schematic diagram of dredging device;

Fig. 4 is the front view of dredger;

Fig. 5 is a side view of the dredger;

Among them, 1. water body, 2. retention layer, 3. dredging layer 1, 4. dredging layer 2, 5. dredging device, 5.1, drill bit, 5.2, pipe body, 5.3, drill pipe, 5.4, rotary drive , 5.5, extraction pipe, 5.6, water injection pipe, 5.7, connecting flange, 5.8, extraction chamber, 5.9, conveying chamber, 5.10, strainer, 5.11, nozzle, 5.12, telescopic drive, 5.13, ring, 5.14 , water outlet, 5.15, horizontal jet outlet, 5.16, partition, 6, hull, 7, operating room, 8, support mast, 9, telescopic support, 10, winch, 11, wire rope, 12, fixed pulley, 13 , Rotating bracket, 13.1, tank body, 14, reinforcement.

Detailed ways

In order to facilitate understanding of the utility model, the utility model will be described more fully below, and preferred embodiments of the utility model are given. However, the invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terminology used in the description of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model.

Example 1:

Referring to Figures 1-3, a dredging device includes a drill bit 5.1, a pipe body 5.2, a drill rod 5.3 and a rotary drive member 5.4; the interior of the pipe body 5.2 is divided into an extraction chamber 5.8 and a delivery chamber 5.9 by a partition 5.16, The extraction chamber 5.8 is connected to the extraction pipe 5.5, the delivery chamber 5.9 is connected to the water injection pipe 5.6, the drill pipe 5.3 is arranged coaxially with the pipe body 5.2 and the drill pipe is rotatably arranged on the partition 5.16, preferably, the partition A hollow tube is welded on the part, and the drill rod is rotatably arranged in the hollow tube, and a bearing can be arranged between the drill rod and the hollow tube to realize the free rotation of the drill rod; the output end of the rotary drive member 5.4 The upper end of the drill rod 5.3 is connected, and the drill bit 5.1 is connected to the lower end of the drill rod 5.3, that is, the rotary drive part drives the drill rod and the drill bit to rotate together. The rotary driving part 5.4 is preferably a motor, and the fixed part of the rotary driving part can be installed on the upper end of the pipe body 5.2 through bolts.

Preferably, the drill bit 5.1 is provided with drill bit reaming teeth, so as to improve dredging efficiency.

Specifically, the extraction pipe 5.5 is connected to the slurry pump to discharge the dredged material at the drill bit 5.1 through the extraction chamber 5.8 and the extraction pipe 5.5; Pressure water (ie high pressure water) is injected into the drill bit 5.1.

Preferably, the extraction pipe 5.8 communicates with the upper part of the extraction chamber 5.8, and the water injection pipe 5.6 communicates with the upper part of the delivery chamber 5.9.

Referring to Fig. 1, the outer port of the extraction pipe 5.5 and the outer port of the water injection pipe 5.6 are provided with a connecting flange 5.7, and the outer port in this embodiment refers to the end of the extraction pipe 5.5 or the water injection pipe 5.6 away from the pipe body 5.2 Those skilled in the art can understand that the purpose of connecting flanges in this embodiment is to reduce the connection difficulty between the extraction pipe, the water injection pipe and other pipes and ports; in practical applications, the extraction pipe 5.5 can be connected to the pipeline through the connecting flange 5.7, Then connect the slurry pump through the pipeline, and the water injection pipe 5.6 can also connect the pipeline through the connecting flange 5.7, and then connect the water pump through the pipeline. Of course, if the length of the extraction pipe and the water injection pipe itself meets the conditions of use, it is possible to realize that the extraction pipe is directly connected to the slurry pump through the connecting flange, and the water injection pipe is directly connected to the water pump through the connecting flange.

The dredging device also includes a horizontal expanding device, the horizontal expanding device is arranged at one end of the pipe body close to the drill bit, the horizontal expanding device is used to expand the dredging range of the dredging device, and can be installed at the lower end of the pipe body (that is, the end close to the drill bit) forms a disturbance; while expanding the scope of influence on the dredging layer, it also increases the dredging volume of a single hole to a certain extent, increases the construction capacity, and reduces the construction cost, as shown in Figure 3. Show.

Specifically, the horizontal excavation device includes a telescopic drive member 5.12 and a ring member 5.13, the ring member 5.13 is slidably sleeved on the outer wall of the pipe body 5.2 near the end of the drill bit, and the outer wall of the delivery chamber 5.9 is provided with At least one pair of horizontal jet outlets 5.15, the ring member 5.13 is provided with a water outlet 5.14, and the telescopic drive member drives the ring member to slide to realize the conduction or cutoff between the horizontal jet outlet 5.15 and the water outlet 5.14.

Preferably, the water outlet can be a single hole corresponding to the number of the horizontal jet port 5.15, and the single hole can be in a shape of a circle, a square, etc., and the water outlet and the horizontal jet can be realized by driving the circular ring to slide through the telescopic drive. The mouth is connected or blocked.

In addition, the water outlet can also be a waist-shaped hole or a square hole that communicates with multiple horizontal jet ports at the same time. The structure of the water outlet can also satisfy the need for communication or cut-off between the water outlet and the horizontal jet port. .

Preferably, the telescopic driving member is one of an oil cylinder, an air cylinder or an electric cylinder. One end of the telescopic driving part is connected to the pipe body, and the other end is connected to the circular ring. Multiple telescopic driving parts are evenly distributed in the circumferential direction of the pipe body to ensure the stability of the sliding of the circular ring and prevent stagnation.

Further, the centerlines of the two horizontal jet ports 5.15 arranged in pairs are collinear, as shown in Figure 2; the advantage of this arrangement is that it can offset the force generated by the two horizontal jet ports, so that the pipe body is in a balanced state State, the dredging device will not tilt, shake, rotate, etc. due to the force generated by the water beam ejected from the horizontal jet port, and the dredging device can maintain vertical sinking under the action of gravity.

Referring to Fig. 1, the extraction chamber 5.8 is detachably provided with a screen member 5.10 near the drill bit, and the screen member 5.10 is used to filter the large particles in the dredged objects to prevent the extraction chamber and the extraction pipe from being blocked; by replacing Filter elements of different specifications can filter particles of different particle sizes, which makes the dredging device in this embodiment can be used for sand and gravel mining, and can also be used for dredging below the water body 1; the conveying chamber 5.9 The nozzle 5.11 is detachably installed at the end close to the drill bit. Since the flow section from the conveying chamber to the nozzle becomes smaller, the pressurized water will be boosted and accelerated when it reaches the nozzle, which can generate high-speed water flow to impact the excavation of the drill bit, resulting in disturbance. In specific applications, the high-speed water flow is mixed with the dredged material and discharged through the extraction chamber and extraction pipe.

Referring to Fig. 4 and Fig. 5, the present embodiment also provides a kind of dredging ship, comprises hull 6, telescopic support member 9, rotating frame 13, lifting equipment and described dredging device, and the lower end of described rotating frame 13 is rotatably connected The hull 6, the two ends of the telescopic support 9 are respectively connected to the hull 6 and the rotating bracket 13, the rotating bracket 13 is provided with a tank body 13.1 for accommodating the dredging device, and the lifting device is connected to the dredging device for Realize that the dredging device is lowered from the tank body or retracted into the tank body.

Preferably, the telescopic support member is a hydraulic telescopic rod, which is a prior art and will not be further described here.

The rotating connection in this embodiment is preferably hinged, and the rotating bracket 13 and the dredging device in the tank can be rotated around the hinge point at the bottom of the rotating bracket through the expansion and contraction of the telescopic support member 9, so as to realize the adjustment of the rotating bracket and the dredging device. to a vertical position or a tilted position.

The hull is also equipped with necessary equipment for ship navigation work, such as: power drive device, spud and landing gear, spud trolley, etc., please refer to the prior art for details.

Specifically, the lifting equipment described in this embodiment includes a hoist 10, a steel wire rope 11 and a fixed pulley 12, the hoist 10 is arranged on the hull 6 for retracting the wire rope 11, and the fixed pulley 12 is arranged on a rotating bracket 13 Above, the wire rope 11 is connected to the dredging device after passing around the fixed pulley 12.

Referring to Fig. 4, the upper end and the lower end of described rotating bracket are all provided with fixed pulley 12, and the steel wire rope that comes out from winch is connected the pipe body of dredging device after the fixed pulley of lower end, the fixed pulley of upper end; The device falls freely under the action of its own gravity, and realizes entering the dredging layer for work; the hoist winds up the wire rope to realize the dredging device being lifted into the tank.

Further, the hoist 10 and the rotating bracket 13 are arranged on the hull 6 through the reinforcement 14. Since the thickness of the plywood of the hull is relatively thin, the reinforcement is installed on the plywood first, and then the hoist and the rotation are respectively installed to the reinforcement. On the part, the reinforcing part can increase the connection stiffness between the winch, the rotating bracket and the hull.

Referring to Fig. 4, the hull 6 is provided with a supporting door frame 8, and the supporting door frame 8 is used to support the rotating bracket 13 in the tilted state, that is, when the rotating bracket 13 is in the tilted state, its upper part is supported by the supporting door frame .

Preferably, in actual setting, the size of the tank body can be designed to be slightly larger than the size of the dredging device, that is, it is sufficient to allow the dredging device to fall freely; , when the dredging device is located in the tank body, the tank body 13.1 can be used to guide the lowering of the dredging device;

Further, an operation room 7 is provided on the hull, and an operation control system is arranged in the operation room.

Apply the technical scheme of this embodiment, specifically:

After the dredging ship arrives at the designated construction area, the rotating bracket 13 and the dredging device 5 are lifted together into a vertical state by operating the telescopic support 9, and the dredging device 5 is positioned above the borehole by moving the ship, and the dredging ship Carry out positioning; the transport ship is moored close to facilitate the reception of dredged objects.

The extraction pipe 5.5 is connected to the slurry pump, and the water injection pipe is connected to the water pump; the winch 10 is controlled to release the wire rope 11, the dredging device 5 is lowered under the action of gravity, and the rotary drive 5.4 drives the drill bit 5.1 to rotate.

The dredging device slowly enters the water, and the frequency conversion cabinet in the engine room is controlled by the operating room 7 on the ship to start the water pump and the slurry pump with low power. In the flow-plastic state, the slurry pump pumps the dredged material to the transport ship;

When the drill bit of the dredging device passes through the reserved layer 2 and approaches the elevation of the dredged layer, gradually coordinate and increase the power of the water pump and the slurry pump to the optimum power, and start dredging at full load; after a certain cavity area is formed in the dredged layer , start the horizontal expansion device to further expand the dredging range; in the dredging layer, the amount of clean water injected by the water pump is controlled to be greater than the amount of dredging mixture absorbed by the slurry pump, so that the water pressure in the cavity of the dredging layer is higher than that of the upper part of the retention layer Water pressure, so as to ensure that the suspended sediment retention layer can get a certain support during the dredging process, and to a certain extent, avoid the collapse of the retention layer during the dredging process.

As the dredging device continues to fall, the dredging layer 1 3 and dredging layer 2 4 are dredged in sequence until the set dredging depth is completed; the hoist tightens the wire rope, the dredging device is slowly lifted, and the water pump is gradually lowered , Slurry pump power. After the bottom of the dredging device leaves the retention layer, turn off the water pump first to reduce the disturbing effect of high-pressure water on the sediment, and turn off the slurry pump after the dredged material in the suction chamber and the suction pipe is washed away, and then prepare to move the ship to the next drilling hole .

The reserved layer after dredging collapses and sinks naturally, so as to retain a certain thickness of undisturbed mud on the surface of the water bottom, minimize the damage of the undisturbed soil on the surface of the water bottom, maintain the stable balance of the ecosystem, and realize ecological dredging.

Apply the technical scheme of the utility model, the effect is:

The dredging device in this embodiment can directly go deep into the target layer for dredging without removing the upper layer of sediment. While completing the dredging and cleaning of the lower layer, the undisturbed soil will naturally collapse and sink, so as to retain a certain thickness of undisturbed mud on the surface of the water bottom, minimize the damage of the undisturbed soil on the surface of the water bottom, maintain the stability and balance of the ecosystem, and realize ecological the purpose of dredging. In addition, the dredging operation takes place in the closed area at the bottom of the retention layer, which effectively reduces the spread of silt during construction, reduces the risk of water pollution caused by construction, and realizes the ecological protection of the dredging process.

Setting up the horizontal excavation device can expand the dredging range of a single hole, increase the construction capacity, and reduce the construction cost; through the dredging device, the capacity of the regional water body can be increased, the cross-section of the regional water can be increased, and the channel can be widened and the excavation depth can be increased. Purpose.

The dredging device in this embodiment can be used for sand and gravel mining. Since the dredging is carried out directly deep into the target layer, there is almost no disturbance to the overburden layer containing biological communities and substrates during the entire dredging process, which reduces the water quality caused by soil disturbance. Turbidity and mud diffusion; the soil and other impurities in the sand and gravel resources mined by dredging are low, and the medium-coarse sand and pebbles required for direct use in engineering construction can be obtained after only one cleaning and screening. While washing the equipment, it also reduces the amount of cleaning water and the amount of residual water to be treated in the later stage, which reduces the construction cost. At the same time, the space saved by the ship also leaves room for the subsequent process optimization and equipment addition.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A dredging device, characterized in that it comprises a drill bit (5.1), a pipe body (5.2), a drill rod (5.3) and a rotary drive (5.4); ) is divided into an extraction cavity (5.8) and a delivery cavity (5.9), the extraction cavity (5.8) communicates with the extraction pipe (5.5), the delivery cavity (5.9) communicates with the water injection pipe (5.6), and the drill pipe (5.3) It is arranged coaxially with the pipe body (5.2) and the drill pipe is rotated on the separator (5.16). The output end of the rotary drive (5.4) is connected to the upper end of the drill pipe (5.3), and the drill bit (5.1) is connected to The lower end of the drill pipe (5.3). 2. The dredging device according to claim 1, characterized in that, the extraction pipe (5.5) communicates with the slurry pump to realize the dredging at the drill bit (5.1) through the extraction chamber (5.8) and the extraction pipe ( 5.5) Discharge; the water injection pipe (5.6) is connected to the water pump to inject pressure water into the drill bit (5.1) through the water injection pipe (5.6) and the delivery chamber (5.9). 3. The dredging device according to claim 2, characterized in that, the outer ports of the extraction pipe (5.5) and the water injection pipe (5.6) are both provided with connecting flanges (5.7). 4. The dredging device according to claim 1, characterized in that, it also includes a horizontal excavation device; the horizontal excavation device includes a telescopic drive (5.12) and a ring (5.13), and the ring (5.13) Slidingly set on the outer wall of the pipe body (5.2) near the end of the drill bit, at least one pair of horizontal jet ports (5.15) are provided on the outer wall of the delivery chamber (5.9), and the circular ring (5.13) A water outlet (5.14) is provided, and the telescopic driving part drives the circular ring to slide to realize the conduction or cutoff between the horizontal jet (5.15) and the water outlet (5.14). 5. The dredging device according to claim 4, characterized in that the centerlines of the two horizontal jet openings (5.15) arranged in pairs are collinear. 6. The dredging device according to claim 1, characterized in that, the extraction cavity (5.8) is detachably provided with a filter element (5.10) at one end close to the drill bit, and the delivery cavity (5.9) is detachably provided with a filter element (5.10) at the end close to the drill bit. One end of the spray head (5.11) is detachably provided. 7. A dredging ship, characterized in that it comprises a hull (6), a telescopic support (9), a rotating bracket (13), lifting equipment and the dredging device according to any one of claims 1-6 , the lower end of the rotating bracket (13) is rotatingly connected to the hull (6), and the two ends of the telescopic support (9) are respectively rotatingly connected to the hull (6) and the rotating bracket (13), and the rotating bracket (13) is provided with a In the tank body (13.1) for accommodating the dredging device, the lifting device is connected to the dredging device for lowering or stowing the dredging device from the tank body. 8. The dredging ship according to claim 7, characterized in that, the lifting equipment comprises a hoist (10), a wire rope (11) and a fixed pulley (12), and the hoist (10) is arranged on the hull (6 ) for retracting the wire rope (11), the fixed pulley (12) is arranged on the rotating bracket (13), and the wire rope (11) is connected to the dredging device after bypassing the fixed pulley (12). 9. The dredging ship according to claim 8, characterized in that, the hoist (10) and the rotating bracket (13) are arranged on the hull (6) through reinforcements (14); A supporting door frame (8) is provided, and the supporting door frame (8) is used to support the rotating bracket (13) in an inclined state. 10. The dredging ship according to claim 7, characterized in that, the tank body (13.1) is used to guide the lowering of the dredging device; and an operation room (7) is provided on the hull.

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