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Treatment device and treatment method for dredging sludge

A technology for dredging silt and treatment equipment, which is applied in the field of dredging silt treatment equipment, which can solve the problems of permanent soil damage, water pollution, resource waste, etc., and achieve the effects of increasing soil cracks, reducing production costs, and facilitating discharge

Active Publication Date: 2022-08-05
WENZHOU UNIV
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  • Application Information

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Problems solved by technology

[0004] At present, the existing vacuum preloading technology uses plastic drainage boards as drainage channels. Due to the non-degradable characteristics of plastics, it will cause permanent damage to the soil.
The traditional vacuum preloading method also uses a large amount of sand, which cannot be recycled after use, which not only increases the cost, but also causes a waste of resources
[0005] Wheat straw is an agricultural by-product of wheat, and after a large amount of wheat is harvested, a large amount of wheat straw will be left behind. At present, the common way to deal with wheat straw is centralized incineration, which not only causes air pollution, but if it is discarded into the river, It also pollutes water quality

Method used

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  • Treatment device and treatment method for dredging sludge
  • Treatment device and treatment method for dredging sludge
  • Treatment device and treatment method for dredging sludge

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Effect test

Embodiment 1

[0035] like Figure 1-Figure 3As shown, the present embodiment provides a processing device 100 for dredging sludge, including a barrel 2, a pressurizing pipe group 6, a drainage pipe group 5, an inflation device 1 and a vacuuming device 4, and each surface of the barrel 2 is sealed. The barrel 2 is used to fill the sludge to form a sealed space, which is convenient for vacuuming and pressurization operations, so that the water in the sludge can be discharged to achieve consolidation. At the same time, the barrel 2 is used to replace the sand layer to improve the overall strength. , compared with the non-recyclability of the sand layer, the barrel 2 can be recycled, thereby avoiding waste of resources and reducing production costs. One end of the group 6 is connected to the inflatable device 1. The inflatable device 1 is used to inflate and pressurize the barrel 2 through the pressurized pipe group 6. The pore water is discharged, thereby improving the sludge consolidation ef...

Embodiment 2

[0047] This embodiment provides a method for processing dredged sludge, using the processing device 100 for dredging sludge in Embodiment 1, including the following steps:

[0048] S1. Preliminary drainage: turn on the vacuuming equipment 4 and keep the inflatable equipment 1 closed, so that the pore water in the barrel 2 enters the gas-water separation element 3, observe the flow rate of the pore water, and close the vacuuming equipment 4 when the flow rate becomes slow. , let the sludge in the barrel 1 stand still;

[0049] S2. Deep drainage: After 9 to 11 hours, turn on the vacuuming equipment 4 again, preferably, the resting time is 10 hours; and intermittently open or close the inflatable equipment 1, more preferably, the inflatable equipment 1 is turned on for 1.5 hours per day , so as to avoid too much air charging when the pressurization time is too long, reduce the vacuum environment of the soil, weaken the pressurization effect, and also avoid that when the pressuriz...

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Abstract

The invention discloses a treatment device and a treatment method for dredging sludge, and relates to the technical field of soft soil foundation treatment. , the barrel body is used to fill the silt, and the open sides of the booster pipe group and the drain pipe group are located in the barrel body, one end of the booster pipe group is connected to the inflation device, and the inflation device is used to pass through the booster pipe group to the opposite side of the barrel. Inflate and increase the pressure in the barrel, one end of the drain pipe group extends into the gas-water separation element, the vacuum equipment is connected with the gas-water separation equipment, and the vacuum equipment is used to vacuum the barrel and allow the water in the barrel to enter Inside the air-water separation element. The treatment device and treatment method for dredging sludge can reduce treatment cost and have good treatment effect.

Description

technical field [0001] The invention relates to the technical field of soft soil foundation treatment, in particular to a treatment device and a treatment method for dredging sludge. Background technique [0002] In the development process of coastal cities, land shortage has become an important factor restricting engineering construction. At present, the main method to solve this problem is land reclamation, usually by means of hydraulic filling. The dredging filler formed by the traditional method has high water content, poor permeability, low shear strength and low bearing capacity. In the construction of the project, due to the long time of self-weight consolidation of dredged packing, special treatment methods such as drying, curing, and vacuum preloading need to be used to speed up the consolidation process. [0003] The way to reinforce this dredged fill is to use vacuum preloading technology. The advantages of this technology are lower construction cost, better so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/121
CPCC02F11/121
Inventor 丁光亚陈世泽赵红星袁国辉谢子令
Owner WENZHOU UNIV