CN216687717U

CN216687717U - Channel dredging spoil silt separation processing apparatus

Info

Publication number: CN216687717U
Application number: CN202123144505.XU
Authority: CN
Inventors: 方锴岳; 赵伟; 王建军; 周振扬
Original assignee: Zhenjiang Gangfa Green Resources Co ltd
Current assignee: Zhenjiang Gangfa Green Resources Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-06-07
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses a device for separating and treating waste soil, mud and sand in channel dredging. The mud-sand separation device comprises a hydrocyclone for performing cyclone separation on a mud-sand mixture and a sediment conveying pipeline connected with the hydrocyclone, wherein the hydrocyclone can perform cyclone separation on the mud-sand mixture into a mud-water mixture and sand, the mud-water mixture can generate a supernatant through precipitation, and the supernatant can be directly pumped into the conveying pipeline and enter the hydrocyclone together with the mud-sand mixture for recycling. The advantages are that: the method can prevent the hydraulic cyclone from being blocked so as to improve the operation reliability of the hydraulic cyclone, can also utilize the impulsive force generated in the flowing process to disperse the mud-sand mixture, and improves the separation efficiency and effect, thereby ensuring the output quality of the sand, the produced sand can be directly applied to the construction engineering, the supernatant fluid recycled by the method also saves water resources, and the reliable operation of the hydraulic cyclone and the direct application of the sand greatly reduce the separation cost.

Description

Channel dredging spoil silt separation processing apparatus

Technical Field

The utility model relates to a device for treating waste during channel dredging, in particular to a device for separating and treating waste soil, mud and sand during channel dredging.

Background

The channel dredging engineering is a necessary measure for ensuring the smoothness of ship equipment in the channel, as the main components in the channel are sand and mud deposited on the bottom of a river, the sand and the mud become valuable natural resources after being washed by river water and can be applied to various construction occasions, but the mud-sand mixture can be effectively utilized only after being separated, in the prior art, a dredger is usually adopted to directly discard and dispose the waste soil-mud-sand mixture generated in the channel dredging process through a side-throwing pipeline, so that the waste of resources is caused, even if people reluctantly output the mixture for utilization, the sand-mud mixture is difficult to separate and has poor separation effect, the separated sand is difficult to be directly utilized, the sand can be applied to construction production after being additionally washed, in addition, the whole separation process is too complicated, the separation cost is also very high, so that the higher value is difficult to obtain, and therefore, how to fully and effectively recycle the resources of the separation cost to achieve the purpose of maximizing benefits becomes a technical problem to be solved urgently.

Disclosure of Invention

The utility model aims to provide a separation treatment device for sludge and sand in channel dredging spoil, which has simple structural design and reliable operation, can quickly separate sand, mud and water in the dredging spoil and has good separation effect.

In order to solve the technical problems, the device for separating and treating the mud and the sand in the channel dredging waste soil comprises a hydrocyclone for performing cyclone separation on a mud and sand mixture and a conveying pipeline which is connected with the hydrocyclone and used for conveying the mud and sand mixture into the hydrocyclone, wherein the hydrocyclone can perform cyclone separation on the mud and sand mixture into mud-water mixture and sand, the mud-water mixture can generate supernatant through precipitation, and the supernatant can be directly pumped into the conveying pipeline and enter the hydrocyclone together with the mud and sand mixture for recycling.

And the conveying pipeline is provided with a filtering device for filtering large particles in the mud-sand mixture.

And a stirring motor positioned between the filtering device and the hydrocyclone is arranged in the conveying pipeline.

The filter device comprises a filter cartridge and a filter screen, wherein the filter cartridge is installed on the conveying pipeline through a flange, and the filter screen is installed in the filter cartridge.

The mud-water mixture can enter a sedimentation tank for sedimentation to generate the supernatant.

The hydraulic cyclone is provided with an inlet, a muddy water mixture outlet and a sand outlet, the conveying pipeline is connected to the inlet of the hydraulic cyclone, a muddy sand mixture entering the hydraulic cyclone from the inlet can be separated by the hydraulic cyclone to output sand from the sand outlet and output the muddy water mixture from the muddy water mixture outlet, and the muddy water mixture outlet of the hydraulic cyclone is connected with a muddy water mixture pipeline extending into the settling pond.

The sedimentation tank is connected with the conveying pipeline through a circulating pipeline, and an outlet of the circulating pipeline is over against the stirring motor or is deviated to one side of the stirring motor.

And a sand collecting barrel is arranged below the sand outlet.

And the sand outlet is connected with a sand outlet pipeline extending into the sand collecting barrel.

The utility model has the advantages that:

(1) the mud-water mixture separated by hydrocyclone directly passes through precipitation to generate supernatant which is used as a washing source and enters the hydrocyclone together with the silt mixture for recycling, not only can the silt mixture entering the hydrocyclone be guided and conveyed, and the blockage of the hydrocyclone is prevented so as to improve the operation reliability of the hydrocyclone, but also the silt mixture can be dispersed by using impulsive force generated in the flowing process, so that the separation efficiency and the separation effect are improved, the output quality of the sand is ensured, the produced sand can be directly applied to construction engineering, the water resource is saved by the recycled supernatant, and the separation cost is greatly reduced by the reliable operation of the hydrocyclone and the direct application of the sand.

(2) Through the filter equipment who sets up on the transfer line, can filter the large granule thing in the silt particle mixture before the silt particle mixture enters into hydrocyclone to avoided large granule thing to cause jam and damage in entering into hydrocyclone, also further improved hydrocyclone's operational reliability.

(3) Be provided with the agitator motor who is located between filter equipment and the hydrocyclone in the pipeline, can be different with the position that the supernatant got into according to agitator motor from this, on the one hand stir the silt particle mixture through agitator motor and disperse the back again and wash the silt particle mixture after the dispersion through the supernatant, also can directly make the supernatant wash agitator motor on the one hand in addition, stir when the realization utilizes the supernatant to dilute the silt particle mixture, improve the purpose of stirring dispersion and transport effect.

(4) The filter equipment design can conveniently be dismantled the cartridge filter for the structure by cartridge filter and filter screen, releases accumulational big particulate matter, also can change the filter screen of different mesh numbers as required and realize carrying out filterable demand to different particulate matter sizes.

(5) The mud-water mixture can enter a sedimentation tank for sedimentation to generate supernatant, and the purpose can be realized by only adding a flocculating agent in the sedimentation tank, so that the method is simple and easy to realize.

Drawings

Fig. 1 is a schematic structural diagram of the device for separating and treating the dredging waste soil, the mud and the sand of the channel.

Detailed Description

The following describes the channel dredging spoil sand-mud separation processing device of the present invention in further detail with reference to the accompanying drawings and the detailed description.

As shown in the figure, the device for separating and treating the mud and the sand of the channel dredging abandoned soil comprises a hydrocyclone 1 for performing cyclone separation on a mud and sand mixture and a conveying pipeline 2 connected with the hydrocyclone 1 and used for conveying the sand into the hydrocyclone, as can be seen from the figure 1, the hydrocyclone 1 is provided with an inlet 7, a mud and water mixture outlet 8 and a sand outlet 9, the conveying pipeline 2 is connected to the inlet of the hydrocyclone 1, a sedimentation tank 6 is arranged below the mud and water mixture outlet 8, the mud and water mixture outlet 8 of the hydrocyclone 1 is connected with a mud and water mixture pipeline 10 extending into the sedimentation tank 6, a sand collecting barrel 12 is arranged below the sand outlet 9, a delivery pipeline 13 extending into the sand collecting barrel is connected to the sand outlet 9, the mud and sand mixture entering the hydrocyclone 4 from the inlet 7 can output the sand from the sand outlet 9 and output the mud and water mixture from the mud and water outlet 8 through the cyclone separation of the hydrocyclone 1 The sludge and the water mixture enter the sedimentation tank 6, the flocculant is added into the sedimentation tank, the sludge and the water mixture can be precipitated to generate sludge on the lower layer and supernatant on the upper layer, the sedimentation tank 6 is connected with the conveying pipeline 2 through a circulating pipeline 11, and a water pump is arranged on the circulating pipeline 11, so that the supernatant can be pumped into the conveying pipeline 2 through the water pump on the circulating pipeline 11 and enter the hydrocyclone 1 together with the sludge and sand mixture for recirculation.

Furthermore, a filter device 3 for filtering large particles in the silt mixture can be arranged on the conveying pipeline 2, the filter device 3 comprises a filter cartridge arranged on the conveying pipeline 2 through a flange and a filter screen 5 arranged in the filter cartridge, wherein the filter cartridge comprises a cylinder body with a flange and a gland screwed on the cylinder body through threads, the center of the gland is a through hole, the filter screen is arranged in the gland and then screwed on the cylinder body to realize the compression and fixation of the filter screen, and the gland is also provided with a flange, thereby realizing the installation between the filter screen and the conveying pipeline, of course, the flange is arranged, thereby being convenient for the disassembly of the filter device, the whole conveying pipeline is divided into two sections in practice, the filter device is arranged between the two sections of conveying pipelines, thereby enabling one section of the conveying pipeline to be used as the conveying section in front of the filter device, the other section of the conveying pipeline is used as a mixing and diluting section behind the filtering device.

Furthermore, because the viscosity of the silt mixture is relatively high and the conveying is relatively difficult, a stirring motor 4 positioned between the filtering device 3 and the hydrocyclone 1 is arranged in the conveying pipeline 2, the stirring motor is directly and hermetically arranged in the conveying pipeline or the main body of the stirring motor is arranged outside the conveying pipeline and enables a stirring blade to extend into the conveying pipeline, the outlet of the circulating pipeline 11 is over against the stirring motor or one side of the stirring motor, wherein when the outlet of the circulating pipeline 11 is deviated to one side of the stirring motor (deviated to the rear, namely, the side close to the inlet of the hydrocyclone), the silt mixture after stirring is stirred and dispersed by the stirring motor and then is washed by the supernatant so that the silt mixture mixed with the supernatant and stirred and dispersed smoothly enters the hydrocyclone, and certainly, when the outlet of the circulating pipeline 11 is deviated to the front of the stirring motor, the effect of stirring after dilution is realized, the realization of the purpose is not influenced, when the outlet of the circulating pipeline 11 is just opposite to the stirring motor, the supernatant can be mixed with the silt mixture at the stirring motor, the silt mixture is stirred while being diluted by the supernatant, and the purposes of improving stirring dispersion and conveying effect are achieved.

The working principle of the utility model is as follows:

the method comprises the steps of conveying dredging waste soil (a mud-sand mixture) to a conveying pipeline through a dredging ship side throwing pipeline, filtering large-particle-size impurities such as large broken stones in the dredging waste soil through a filtering device, adding water (supernatant) into the filtered mud-sand mixture for dilution, stirring the mixture by a motor, fully blending the mud-sand mixture into water, introducing the mud-sand mixture into an ore feeding port (inlet) of a hydrocyclone, collecting and recycling sand discharged from the lower end of the hydrocyclone through a sand collecting barrel under the action of the hydrocyclone, introducing the separated mud-water mixture into a sedimentation tank through a mud-water mixture pipeline, adding a flocculating agent into the sedimentation tank to achieve mud-water separation, pumping the supernatant in the sedimentation tank to the conveying pipeline through a water pump, and repeating the processes to realize water resource recycling.

Claims

1. The utility model provides a channel dredging spoil silt separation processing apparatus which characterized in that: including being used for carrying out hydrocyclone (1) of hydrocyclone separation and being connected with hydrocyclone (1) and being used for carrying the conveying pipeline (2) of silt particle mixture in to hydrocyclone, hydrocyclone (1) can be with silt particle mixture hydrocyclone separation for muddy water mixture and sand, muddy water mixture can produce the supernatant through the sediment, the supernatant can directly pump into conveying pipeline (2) in and enter into hydrocyclone (1) with the silt particle mixture simultaneously and recirculate.

2. The channel dredging spoil sand separation processing apparatus according to claim 1, characterized in that: and the conveying pipeline (2) is provided with a filtering device (3) for filtering large particles in the mud-sand mixture.

3. The channel dredging spoil sand separation processing apparatus according to claim 2, characterized in that: and a stirring motor (4) positioned between the filtering device (3) and the hydrocyclone (1) is arranged in the conveying pipeline (2).

4. The channel dredging spoil sand separation processing apparatus according to claim 3, characterized in that: the filtering device (3) comprises a filter cylinder and a filter screen (5), wherein the filter cylinder is arranged on the conveying pipeline (2) through a flange, and the filter screen (5) is arranged in the filter cylinder.

5. The channel dredging spoil sand separation processing apparatus according to claim 3 or 4, characterized in that: the mud-water mixture can enter a sedimentation tank (6) for sedimentation to generate the supernatant.

6. The channel dredging spoil sand separation processing apparatus according to claim 5, characterized in that: the hydraulic cyclone (1) is provided with an inlet (7), a muddy water mixture outlet (8) and a sand outlet (9), the conveying pipeline (2) is connected to the inlet of the hydraulic cyclone (1), a muddy sand mixture entering the hydraulic cyclone (1) from the inlet can be separated through the hydraulic cyclone (1) and output from the sand outlet (9) through the sand and the muddy water mixture from the muddy water mixture outlet (8), and the muddy water mixture outlet (8) of the hydraulic cyclone (1) is connected with a muddy water mixture pipeline (10) extending into the sedimentation tank (6).

7. The channel dredging spoil sand separation processing apparatus according to claim 6, characterized in that: the sedimentation tank (6) is connected with the conveying pipeline (2) through a circulating pipeline (11), and an outlet of the circulating pipeline (11) is over against the stirring motor or is deviated to one side of the stirring motor.

8. The channel dredging spoil sand separation processing apparatus according to claim 6 or 7, characterized in that: a sand collecting barrel (12) is arranged below the sand outlet (9).

9. The channel dredging spoil sand separation processing apparatus according to claim 8, characterized in that: the sand outlet (9) is connected with a sand outlet pipeline (13) extending into the sand collecting barrel.