Sand suction dredger for silt separation

Abstract

The utility model relates to a sand suction dredger for silt separation. The sand suction dredger comprises a storage and transportation device and a silt suction device, the storage and transportation device comprises a transport ship provided with a large cabin, a flow divider and a swirler, wherein the flow divider and the swirler are arranged on the cabin. The mud suction device comprises a mud suction pipe and a mud pump; a first valve is arranged at one end of the mud pump, and a mud conveying pipe is connected to the first valve; wherein the mud conveying pipe is also connected with a flow divider; the mud suction pipe conveys mud excavated by the mud pump to the flow divider through the mud conveying pipe, and the mud flows into the swirler after being evenly distributed through the flow divider. The utility model has the advantages that the water pressure generated by the mud pump is utilized, so that the silt is separated in the cyclone with an unpowered structure, the integral functions of silt taking, silt separation, storage and transportation are integrated, the construction is simple, the operation is convenient, the cost is low and the like, a mud barge is saved, the construction efficiency is improved, and the construction cost is reduced. And a qualified sandy material is provided for engineering.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sand suction ship, and relates to sand suction ship of silt separation. BACKGROUND

[0002] A large amount of silt mixture is produced in the process of dredging work of dredging ship, the mixture has complex components and contains a large amount of water. Under normal circumstances, the silt mixture is transported to a designated place for stacking, which seriously affects the environment and occupies a large amount of land. With the continuous expansion of dredging engineering, the demand for sand and stone is also increasing, so it is particularly important to recycle sand and stone in dredged silt.

[0003] The dredged soil sand selection process is a key process for valuing the dredged soil, through the sand selection process, the silt in the dredged soil can be separated, and the sand and stone with high price can be obtained, which can be directly used for engineering, not only fully utilizes the dredged soil and reduces the land occupation, but also effectively reduces the engineering cost.

[0004] At present, the overflow loading method is mainly used for silt separation of dredged soil, the slurry is transported to the sludge barge through the sludge pipe by the slurry pump, and when the liquid level reaches the specified position, it is overflowed outside the cabin through the overflow hole. However, when the particle size of the silt is less than 0.005mm and more than 10%, and the particle size of more than 0.075mm accounts for 20-50%, it is difficult to deposit, the loading efficiency is very low, and the use of sand suction ship is greatly limited. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the above problems existing in the prior art, and provides a sand suction ship for silt separation.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0007] A sand suction ship for silt separation, comprising a storage and transportation device, and a suction device connected with the storage and transportation device; wherein the storage and transportation device comprises a transportation ship equipped with a large cabin, and a flow divider and a cyclone separator arranged on the cabin; wherein the cyclone separator is fixed on both sides of the cabin, one end thereof is in communication with the flow divider, and the other end is connected to the inside of the cabin through a hose;

[0008] The suction device comprises a suction pipe and a slurry pump connected in sequence from bottom to top; one end of the slurry pump is provided with a first valve, and a sludge conveying pipe is connected to the first valve; wherein a flow divider is further connected to the sludge conveying pipe; and the slurry pumped up by the suction pipe is transported to the flow divider through the sludge conveying pipe, and then uniformly distributed through the flow divider and flows into the cyclone separator.

[0009] Preferably, the sludge delivery pipes are arranged in multiple and are connected in parallel to the first valve respectively.

[0010] Preferably, the cyclones are arranged in multiple, and the multiple cyclones are connected in series to form groups respectively, and each group is connected in parallel to the flow divider respectively.

[0011] Preferably, a second valve is arranged at the connection between each group of the cyclones and the flow divider.

[0012] Preferably, a sludge discharge pipe is further connected to the top of the cyclone, and the sludge discharge pipe is used for discharging water and fine particle sludge out of the cyclone; wherein the pipe opening of the sludge discharge pipe is arranged below the water surface.

[0013] Preferably, the sludge suction device can be arranged in multiple, and the flow rate of each pump of the sludge suction device is 3000-5000 m3 / h, the maximum suction depth reaches 30-40 m, and the lift is 20-25 m.

[0014] Preferably, a high-pressure water gun is arranged on the ship cabin, and the high-pressure water gun is used for uniformly distributing the sludge in the ship cabin to prevent the sludge from depositing during unloading; wherein the pressure of the high-pressure water gun is required to be 10-20 MPa.

[0015] Due to the adoption of the above technical scheme, the utility model has the following beneficial effects:

[0016] 1. The utility model discloses a flow divider and cyclone can make the sludge that is dredged by the slurry pump enter the cyclone through the flow divider, under the action of the centrifugal force generated by the cyclone, the slurry can continuously concentrate and separate, after concentration and separation, the sludge with large particle size and weight can flow out from the underflow port and enter the ship cabin, most of the water and fine particle sludge with small weight and fine particle size are discharged out of the ship through the overflow port of the hydrocyclone, the sludge is separated in the cyclone without power structure, the overall use cost is low, the efficiency is high, and qualified sandy material is provided for the project.

[0017] 2. The utility model discloses a set of mud, sludge separation, storage and transportation, has the characteristics such as simple construction and convenient operation, saves the mud barge, improves the construction efficiency.

[0018] 3. The utility model discloses a set of mud, sludge separation, storage and transportation, has the characteristics such as simple construction and convenient operation, saves the mud barge, improves the construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure schematic view of the sludge separation suction sand ship embodiment of the utility model.

[0020] The signs are as follows:

[0021] 1, suction pipe; 2, mud pump; 3, first valve; 4, mud pipe; 5, cabin;

[0022] 6, diverter; 7, cyclone; 8, second valve; 9, mud discharge pipe; 10, high-pressure water gun. DETAILED DESCRIPTION

[0023] Please see Figure 1 The utility model provides a sand suction ship of silt separation, and the sand suction ship integrates mud collecting, silt separation, storage and transportation, has the characteristics of simple construction and convenient operation, etc. Based on this, the sand suction ship comprises a storage and transportation device and a suction device connected with the storage and transportation device. The suction device comprises a suction pipe 1 and a mud pump 2 connected in sequence from bottom to top. The mud pump 2 can use the suction pipe 1 to dredge the silt-containing mud to the surface, thereby meeting the production needs. A first valve 3 is arranged at one end of the mud pump 2. The first valve 3 is connected with a mud pipe 4. The mud pump 2 can pump the mud from the bottom of the water and transport it to a designated position through the mud pipe 4. The first valve 3 is mainly used for switching the mud pipe, so that the sand suction ship can operate normally when it is transported or the pipe is blocked. In this embodiment, the mud pipe 4 is arranged in multiple and is connected in parallel with the first valve 3. Correspondingly, the number of the first valve 3 can be arranged in multiple, and each mud pipe 4 is controlled, so that the first valve 3 can be switched at will when the sand suction ship is transported or the pipe is blocked, thereby meeting the use needs in different states. In addition, the mud pipe 4 is arranged in multiple as a backup, so that the sand suction ship can operate normally when it is maintained or a fault occurs.

[0024] In this embodiment, the storage and transportation device comprises a transport ship equipped with a large cabin 5 and a diverter 6 and a cyclone 7 arranged on the cabin 5. The cyclone 7 is fixed on both sides of the cabin 5. One end of the cyclone 7 is in communication with the diverter 6, and the other end is connected to the inside of the cabin 5 through a soft pipe. Correspondingly, the diverter 6 is also connected with multiple mud pipes 4. The mud pumped up by the mud pump 2 through the suction pipe 1 is transported to the diverter 6 through the mud pipe 4 and flows into the cyclone 7 after being evenly distributed by the diverter 6. The coarse-grained silt flows out from the bottom of the cyclone 7, and the fine-grained silt and most of the water flow out from the top of the cyclone 7. It should be noted that the main function of the suction pipe 1 is to transport the mud pumped up by the mud pump 2 into the cyclone 7. The number of the suction pipe 1 can be matched according to the flow of the mud pump 2, and the number is 2-6, and the diameter is 400-600 mm, so that the pressure requirement of entering the cyclone can be met. In addition, the mud pump 2 is mainly used for dredging the silt-containing mud, and each ship can be equipped with four pumps. The flow of each pump is 3000-5000 m3 / h, the maximum suction depth is 30-40 m, and the lift is 20-25 m.

[0025] In the embodiment, the transport ship equipped with the larger cabin 5 can make the sand in the cabin rich, and then the first valve 3 on the sand suction pipe can be switched to another sand suction ship, so that the sand taking work is uninterrupted, and the construction efficiency is improved.

[0026] In the embodiment, the cyclone is arranged in multiple, wherein the multiple cyclones 7 are connected in series in groups, and each group is connected in parallel on the flow divider 6; specifically, the sand-containing sludge is uniformly distributed to the cyclones 7 in different groups through the flow divider 6, and the cyclones 7 separate the sand-containing sludge through water flow pressure, so as to improve the construction efficiency; and the second valve 8 is arranged at the connection between each group of cyclones 7 and the flow divider 6, and the second valve 8 is used to open multiple groups of cyclones to separate the sand-containing sludge and the sand, so as to improve the loading capacity per unit time.

[0027] It should be noted that the sand dredged by the slurry pump 2 enters the cyclone 7 to produce centrifugal effect, and then the slurry is continuously concentrated and separated, and after concentration and separation, the sand with large particle size and weight flows out from the underflow port into the cabin, and most of the water and fine particle sludge with small weight and fine particles are discharged out of the ship through the overflow port of the hydrocyclone.

[0028] In the embodiment, the top of the cyclone 7 is also connected with a sludge discharge pipe 9, which is used to discharge most of the water and fine particle sand out of the cyclone 7; wherein the pipe opening of the sludge discharge pipe 9 is arranged below the water surface, so as to reduce the pollution of overflow to the surrounding water.

[0029] In the embodiment, the cabin 5 is also provided with a high-pressure water gun 10, and the pressure requirement is 10-20MPa, which is used to make the sand in the cabin uniform, and prevent the sand from depositing when unloading.

[0030] It should be noted that the utility model uses the slurry pump to suck the sand-containing sludge into the cyclone group, the sand dredged by the slurry pump enters the cyclone to produce centrifugal effect, and then the slurry is continuously concentrated and separated, and after concentration and separation, the sand with large particle size and weight flows out from the underflow port into the cabin, and most of the water and fine particle sludge with small weight and fine particles are discharged out of the ship through the overflow port of the hydrocyclone; and after the cabin is full of sand, the sludge suction pipe is retracted, and the sand suction ship is transported to the designated place; the sand suction ship of the utility model mainly stores and transports slurry, the carrying capacity is 6000-8000 tons, and the whole sand suction ship can complete the sand removal and transportation to the designated place, the construction efficiency is high, and there is no risk of pipe blockage.

[0031] The above related description and the description of the embodiments are for facilitating the ordinary skilled in the art to understand and apply the present application. Those skilled in the art can obviously easily make various modifications to these contents, and apply the general principles described herein to other embodiments without creative labor. Therefore, the present application is not limited to the above related description and the description of the embodiments, and the improvements and modifications made by those skilled in the art according to the disclosure of the present application without departing from the scope of the present application should be within the protection scope of the present application.

Claims

1. A sand dredging and separating vessel, characterized in that The application relates to a dredging device, which comprises a storage and transportation device and a suction device connected with the storage and transportation device; wherein the storage and transportation device comprises a transportation ship equipped with a large cabin and a flow divider and a cyclone arranged on the cabin; the cyclone is fixed on both sides of the cabin, one end of the cyclone is communicated with the flow divider, and the other end of the cyclone is connected with the inside of the cabin through a hose; The suction device comprises a suction pipe and a slurry pump connected in sequence from bottom to top; one end of the slurry pump is provided with a first valve, and a slurry conveying pipe is connected with the first valve; a flow divider is further connected with the slurry conveying pipe; the slurry pumped by the slurry pump is transported to the flow divider through the slurry conveying pipe, and then is evenly distributed through the flow divider and flows into the cyclone.

2. The dredging suction dredger for sediment sorting according to claim 1, characterized in that, The slurry conveying pipes are arranged in multiple and are connected in parallel with the first valve.

3. The dredge- sorted suction dredge of claim 1, wherein, The cyclones are arranged in multiple, and the multiple cyclones are connected in series to form groups, and each group is connected in parallel with the flow divider.

4. The dredging vessel of claim 3, wherein, Second valves are arranged at the connection positions of each group of the cyclones and the flow divider.

5. The dredge- sorted suction dredge of claim 1, wherein, A sludge discharging pipe is further connected with the top of the cyclone, the sludge discharging pipe is used for discharging water and fine particle sludge from the cyclone, and the pipe opening of the sludge discharging pipe is arranged below the water surface.

6. The dredge-sand- separating dredge boat of claim 1, wherein, The suction device can be arranged in multiple, and the flow of each pump of the suction device is 3000-5000 m3 / h, the maximum suction depth reaches 30-40 m, and the lift is 20-25 m.

7. The dredging suction dredger of claim 1, characterized in that, A high-pressure water gun is arranged on the cabin, the high-pressure water gun is used for uniformly distributing the sludge in the cabin and preventing the sludge from depositing during unloading, and the pressure of the high-pressure water gun is required to be 10-20 MPa.

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