CN212104120U - Integrated treatment and filling device for high-water-content sludge - Google Patents
Integrated treatment and filling device for high-water-content sludge Download PDFInfo
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- CN212104120U CN212104120U CN202020270609.1U CN202020270609U CN212104120U CN 212104120 U CN212104120 U CN 212104120U CN 202020270609 U CN202020270609 U CN 202020270609U CN 212104120 U CN212104120 U CN 212104120U
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Abstract
The utility model belongs to the technical field of sludge treatment and embankment filling, and discloses an integrated treatment and filling device for sludge with high water content, which comprises a curing agent storage tank, a stirring box, a flocculation stirring box, a flocculating agent storage tank and a vacuum pump, wherein the stirring box is connected with the curing agent storage tank and the flocculation stirring box; the curing agent storage tank is used for containing the curing agent and transmitting the curing agent to the stirring box at a preset flow rate; the stirring box is used for stirring the curing agent and the high-water-content sludge to obtain a sludge-curing agent mixture; the flocculating agent storage tank is used for containing the flocculating agent and transmitting the flocculating agent to the flocculation stirring box; the flocculation stirring tank is used for uniformly stirring the sludge-curing agent mixture and the flocculating agent to obtain a sludge mixture and pouring the sludge mixture onto the composite geotextile; the vacuum pump is used for carrying out low-position vacuum preloading on the composite geotextile. The utility model provides high efficiency, the suitability is better.
Description
Technical Field
The utility model belongs to the technical field of silt is handled and the embankment is filled and is correlated with, more specifically, relate to an integration of high moisture content silt is handled and is packed device.
Background
Along with the rapid development of economy, urban and rural integration construction process accelerates, according to preliminary estimate, newly-built and all kinds of infrastructure of all kinds can produce billions of high moisture content silt with transforming year, traditional construction methods such as direct dumping landfill are often taken in silt processing in the past, along with the constantly increaseing of city environmental protection supervision and the constantly shrinking of landfill yard (yard) resource, abandon the phenomenon that silt discharges at will and has been forbidden comprehensively, the engineering needs to abide by stricter technique and environmental protection requirement in silt excavation, silt transportation and silt processing process, need invest more manpower, physics and financial resources, silt ecological safety handles and the resourceful treatment becomes the comprehensive problem that needs to solve in the engineering more and more urgent need more, the common silt processing technique of engineering boundary mainly includes following several at present:
(1) discharged on site or directly transported outside. The method is simple and direct, but can generate additional engineering cost and risks of secondary environmental pollution, and bring serious environmental problems and economic problems.
(2) Settling in a storage yard (or a long-term sedimentation tank) and air-drying. The method is characterized in that high-water-content sludge is intensively discharged in a storage yard or a sedimentation tank, upper-layer liquid is discharged after long-time sedimentation and separation, and the sludge is buried in place after spontaneous combustion and air drying of sediments. The method requires a large amount of land, which is a substantial burden in the developed world.
(3) And (5) mechanical dehydration treatment. The method utilizes a mechanical filter pressing device or a high-speed centrifugal device to transport and discharge sludge with high water content and dehydrated solid matters (mud cakes), and the dehydrated water is recycled after being treated. The method does not need to occupy a large amount of land for a long time, but the dehydrated mud cakes still have poor engineering mechanical properties, so that direct resource utilization cannot be realized, most of the mud cakes can be only buried, and the severe situation of the current landfill/absorption site over-capacity operation is aggravated.
(4) Chemical curing treatment. The method is characterized in that a curing agent is added into the sludge, so that the sludge and the curing agent react to generate a cementing body with certain strength, and the hardened cementing body can replace a sand-stone material to be used as an engineering filler. The method is mainly suitable for sludge with relatively low water content, and has little effect of directly carrying out curing treatment on sludge with high water content (or needs to add a large amount of curing agent to obviously increase the cost).
Therefore, the integrated treatment and filling device for the high-water-content sludge with better applicability is needed in the field.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects or the improvement requirements in the prior art, the utility model provides an integrated treatment and filling device for high-moisture content silt, which integrates a low-level vacuum prepressing technology in addition to the application of a cement curing technology and a flocculation conditioning technology to cooperate with the flocculation conditioning technology to quickly and deeply reduce the effective moisture content of the treated silt, thereby further reducing the mixing amount of curing agents such as cement and the engineering cost; in addition, the method of gradually propelling construction by blocks and upward filling layer by layer is adopted, so that the fluid construction industry is realized, the construction period is reduced, the method can reduce the consumption of natural embankment materials, simultaneously can recycle the sludge with high water content, and has remarkable economic, social and environmental benefits.
In order to achieve the above object, one aspect of the present invention provides an integrated treatment and packing device for high water content sludge, the device comprises a curing agent storage tank, a stirring tank, a flocculation stirring tank, a flocculant storage tank and a vacuum pump, the curing agent storage tank is connected to the stirring tank, an outlet of the stirring tank is connected to the flocculation stirring tank, and the flocculant storage tank is connected to the flocculation stirring tank; the vacuum pump is used for detachably connecting the composite geotextile;
the curing agent storage tank is used for containing a curing agent and transmitting the curing agent to the stirring box at a preset flow rate; the stirring tank is used for stirring the curing agent and the high-water-content sludge at a preset rotating speed to obtain a sludge-curing agent mixture, and meanwhile, the stirring tank is used for transmitting the sludge-curing agent mixture to the flocculation stirring tank; the flocculating agent storage tank is used for containing a flocculating agent and transmitting the flocculating agent to the flocculation stirring box; the flocculation stirring tank is used for uniformly stirring the sludge-curing agent mixture and the flocculating agent to obtain a sludge mixture and pouring the sludge mixture onto the composite geotextile; the vacuum pump is used for performing low-position vacuum pre-pressing on the composite geotextile.
Furthermore, the device is used for pouring the earthwork project by taking the sludge with high water content as a raw material and adopting a layer-by-layer layering and blocking mode.
Further, the device also comprises a curing agent conveying mechanism and a curing agent flow valve, wherein the curing agent conveying mechanism is connected with the curing agent storage tank and the stirring box; the curing agent flow valve is arranged on the curing agent conveying mechanism.
Further, the device also comprises a motor, wherein the motor is arranged on the stirring box, an output shaft of the motor extends into the stirring box, and the output shaft is connected with a mechanical stirring piece.
Further, the device still includes motor and hydraulic pressure stirring vane, hydraulic pressure stirring vane sets up in the flocculation agitator tank, the motor sets up on the flocculation agitator tank, its output shaft stretches into in the flocculation agitator tank, and connect in hydraulic pressure stirring vane.
Further, the hydraulic stirring blade is communicated with the flocculant storage tank and is provided with a plurality of hydraulic holes; the hydraulic hole is used for spraying the flocculating agent from the flocculating agent storage tank into the flocculation stirring box.
Generally, through the utility model discloses the above technical scheme who conceives compares with prior art, the utility model provides an integrated processing and the filler device of high moisture content silt mainly have following beneficial effect:
1. compared with the traditional chemical curing process for treating the sludge with high water content, the flocculation-curing combined method can be used for quickly flocculating and curing the sludge with high water content, so that the properties of the treated sludge are greatly improved, the water content is greatly reduced, and the strength is greatly improved.
2. The utility model discloses a layering successive layer is pour, is blocked progressively propulsive mode, carries out reasonable parallel overlap joint construction with the construction process, is carrying out pouring of the flocculation solidification silt of block n promptly and is filling work and low-order vacuum pre-compaction in, and block n + 1's compound geotextile's the process of laying also goes on in step to realize alternately going forward construction by one's turn, improved the efficiency of construction by a wide margin, shortened construction period.
3. The utility model discloses combine the method basis to merge low level vacuum preloading technique on flocculation solidification for high moisture content silt further produces the pressurization consolidation, is showing and is promoting flocculation conditioning efficiency, and flocculation conditioning effect has also promoted the dewatering performance of high moisture content silt widely simultaneously, further promotes the dewatering effect of low level vacuum preloading technique.
4. Effectively utilize the high moisture content silt of useless putting, solved potential environmental pollution risk, alleviated the unbalanced difficult problem of traditional grit filler supply and demand, for seeking the alternative material of natural embankment material provide the new direction, have sustainable development nature.
Drawings
FIG. 1 is a schematic flow diagram of the integrated treatment and packing method for high moisture content sludge provided by the present invention;
FIG. 2 is a schematic view of the use state of the integrated treatment and filling device for sludge with high water content according to the present invention;
fig. 3 is a schematic view of a composite geotextile used in the integrated treatment and filling method of high moisture content sludge of fig. 1;
fig. 4 is a schematic cross-sectional view of the composite geotextile of fig. 3.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein: 1-sludge, 2-pumping pipe, 3-curing agent storage tank, 4-curing agent conveying mechanism, 5-curing agent flow valve, 6-stirring tank, 7-motor, 8-hydraulic stirring blade, 9-flocculation stirring tank, 10-hydraulic hole, 11-flocculant flow valve, 12-flocculant storage tank, 13-flocculant conveying pump, 14-discharge pipe, 15-enclosure, 16-composite geotextile, 17-vacuum suction and filtration pipe, 18-vacuum control valve, 19-vacuum pump, 20-horizontal plastic drainage plate, and 21-geotextile.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1 and 2, the integrated treatment and filling method for high water content sludge provided by the present invention mainly includes the following steps:
step one, dividing a project to be filled into M layers, and dividing each layer into N blocks so as to perform block filling, wherein M is a positive integer greater than or equal to 2.
Specifically, the filling engineering is embankment filling, the filling engineering is divided into a plurality of layers according to actual conditions, each layer is divided into a plurality of blocks, the length of each block is 20 m-40 m, and the width is determined according to the width of an embankment.
And step two, paving the composite geotextile on the upper surface of the nth block of the M-1 layer of the filling engineering.
Specifically, referring to fig. 3 and 4, the composite geotextile has a multilayer structure, and includes a plurality of horizontal plastic drainage plates and a plurality of layers of geotextiles, the horizontal plastic drainage plates are located between two adjacent layers of geotextiles, and the peripheries of the horizontal plastic drainage plates and the geotextiles are sealed to form a whole, wherein the geotextile has a good water permeability.
In this embodiment, the composite geotextile 16 comprises two layers of geotextile 21 and one horizontal plastic drainage panel 20, wherein the horizontal plastic drainage panel 20 is positioned between the two layers of geotextile 21. The horizontal plastic drain board 20 is connected to the vacuum suction filter tube 17.
Pouring a sludge mixture formed by mixing the sludge with high water content, the curing agent and the flocculating agent into the nth block of the M-1 layer of the filling engineering, performing low-level vacuum preloading for preset time, and paving the composite geotextile on the (n + 1) th block of the M-1 layer, wherein n is a positive integer greater than or equal to 1; then, let n be n + 1.
Specifically, the high water content sludge refers to sludge dredged from water areas such as rivers, lakes, reservoirs and seas with water content of more than 150% or sludge spoil generated by engineering construction, wherein the curing agent can be cement or a mixture formed by cement, blast furnace slag and quick lime; the flocculating agent can be selected from inorganic flocculating agent or organic flocculating agent, the inorganic flocculating agent can be polyferric chloride, polyaluminium chloride/quicklime and the like, and the mixing amount of the inorganic flocculating agent is about 1 percent of the mass of the pure soil particles; the organic flocculant may be polyacrylamide, and the mixing amount of the organic flocculant is about 0.13-0.2% of the mass of the pure soil particles. In addition, the water content of the utility model follows the definition in soil mechanics, namely the ratio of the mass of water in the soil body to dry soil particles; the preset time is 30-90 min.
In order to improve the construction efficiency of filling engineering, the pouring process of the flocculation solidified sludge is delayed to the composite geotextile laying process by one block, and the two processes adopt parallel lap construction, namely, the pouring and filling work of the flocculation solidified sludge of the block n and the low-level vacuum prepressing are carried out, and simultaneously, the composite geotextile laying process of the block n +1 is also carried out synchronously.
And step four, repeating the step three until the processing and the pouring of all the blocks of the M-1 layer are finished, and enabling M to be M + 1.
And step five, repeating the step two to the step four until the treatment and the pouring of all the layers are finished.
The utility model also provides an integration of high moisture content is handled and is packed device, the device is including pumping pipe 2, curing agent storage tank 3, curing agent conveying mechanism 4, curing agent flow valve 5, agitator tank 6, two motors 7, hydraulic pressure stirring vane 8, flocculation agitator tank 9, flocculating agent flow valve 11, flocculating agent storage tank 12, flocculating agent delivery pump 13, discharging pipe 14 the vacuum suction filtration pipe 17, vacuum control valve 18 and vacuum pump 19. The pumping pipe 2 is connected with the stirring box 6, one motor 7 is arranged on the stirring box 6 and is connected with a mechanical stirring piece arranged in the stirring box 6 so as to drive the mechanical stirring piece to rotate, and the rotating speed of the mechanical stirring piece is 60 r/min-120 r/min. In this embodiment, the pumping pipe 2 and the corresponding motor 7 are respectively located on two opposite sides of the stirring box 6.
The curing agent conveying mechanism 4 is connected with the curing agent storage tank 3 and the stirring box 6, the curing agent flow valve 5 is arranged on the curing agent conveying mechanism 4, and the curing agent storage tank 3 is used for containing curing agents. The outlet of the stirring box 6 is connected with the inlet of the flocculation stirring box 9, the outlet of the flocculation stirring box 9 is connected with the discharge pipe 14, and the discharge pipe 14 is used for discharging the sludge mixture. The upper end of flocculation agitator tank 9 is provided with motor 7, the output shaft of motor 7 stretches into in the flocculation agitator tank 9, it connect in hydraulic pressure stirring vane 8, a plurality of hydraulic pressure holes 10 have been seted up on the hydraulic pressure stirring vane 8. The flocculant storage tank 12 is used for containing flocculant, and is internally provided with a flocculant delivery pump 13, the flocculant delivery pump 13 is connected with the hydraulic stirring blades 8 through a delivery pipe, and the flocculant flow valve 11 is arranged in the delivery pipe. The outlet of the vacuum pump 19 is separably connected with the vacuum pumping and filtering pipe 17, and the vacuum control valve 18 is arranged at the outlet of the vacuum pump 19.
In operation, the sludge 1 is sent to the stirring tank 6 through the pumping pipe 2, the curing agent is stored in the curing agent storage tank 3, the curing agent is sent into the stirring tank 6 through the curing agent conveying mechanism 4 according to a certain flow rate, the curing agent is mixed and stirred under the power of the motor 7, after the uniform stirring, the slurry-curing agent mixture flows into the flocculation stirring tank 9, the flocculant solution is pumped into the hydraulic stirring blade 8 from the flocculant storage tank 12 through the flocculant conveying pump 13 and is hydraulically sprayed out from the hydraulic hole 10 to be mixed and stirred with the slurry-curing agent mixture, the flow rate of the flocculant flow valve 11 can be controlled and read, after the uniform stirring, the flocculant solution is discharged from the discharge pipe 14 and poured into the composite geotextile 16 laid in the embankment dam 15, and the vacuum pump 19 is connected with the composite geotextile 16 through the vacuum pumping pipe 17, the vacuum control valve 18 is used for controlling the vacuum degree of suction filtration.
The present invention will be described in further detail with reference to specific examples.
The integrated treatment and filling method of the sludge with high water content comprises the following steps: dividing a filling project into a plurality of layer sections (the thickness of the layer is 1m), and dividing a single layer section into a plurality of blocks (the length is 20 m-40 m, and the width is determined by the width of the embankment); then, a process of laying the composite geotextile 16 of the construction block 1 is carried out, wherein the composite geotextile 16 consists of a geotextile 21, a horizontal plastic drainage plate 20 and a geotextile 21 from top to bottom, and respective vacuum pumping and filtering pipes 17 and vacuum pumps 19 are connected; pumping the sludge subjected to flocculation curing treatment to the surface layer of the composite geotextile 16 of the block 1 by using a conveying mechanism for pouring and filling; after the pouring work of the flocculation curing mud of the block 1 is finished, immediately performing low-level vacuum suction filtration on the poured block for 30 to 90 minutes by using a vacuum pump 19, and simultaneously performing the laying work of the composite geotextile 16 of the block 2; in order to improve the construction efficiency of filling engineering, the pouring process of the flocculation solidified sludge is delayed to the composite geotextile laying process by one block, and the two processes adopt parallel lap construction, namely, the pouring and filling work of the flocculation solidified sludge of the block n and the low-level vacuum prepressing are carried out, and simultaneously, the composite geotextile laying process of the block n +1 is also carried out synchronously. And repeating the steps until the whole embankment is poured.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides an integration of high moisture content silt is handled and filler device which characterized in that:
the device comprises a curing agent storage tank, a stirring box, a flocculation stirring box, a flocculant storage tank and a vacuum pump, wherein the curing agent storage tank is connected with the stirring box, an outlet of the stirring box is connected with the flocculation stirring box, and the flocculant storage tank is connected with the flocculation stirring box; the vacuum pump is used for detachably connecting the composite geotextile;
the curing agent storage tank is used for containing a curing agent and transmitting the curing agent to the stirring box at a preset flow rate; the stirring tank is used for stirring the curing agent and the high-water-content sludge at a preset rotating speed to obtain a sludge-curing agent mixture, and meanwhile, the stirring tank is used for transmitting the sludge-curing agent mixture to the flocculation stirring tank; the flocculating agent storage tank is used for containing a flocculating agent and transmitting the flocculating agent to the flocculation stirring box; the flocculation stirring tank is used for uniformly stirring the sludge-curing agent mixture and the flocculating agent to obtain a sludge mixture and pouring the sludge mixture onto the composite geotextile; the vacuum pump is used for performing low-position vacuum pre-pressing on the composite geotextile.
2. The integrated treatment and filling apparatus for high moisture content sludge as claimed in claim 1, wherein: the device is used for pouring the earthwork by taking the sludge with high water content as a raw material and adopting a mode of layering and blocking layer by layer.
3. The integrated treatment and filling apparatus for high moisture content sludge as claimed in claim 1, wherein: the device also comprises a curing agent conveying mechanism and a curing agent flow valve, wherein the curing agent conveying mechanism is connected with the curing agent storage tank and the stirring box; the curing agent flow valve is arranged on the curing agent conveying mechanism.
4. The integrated treatment and packing apparatus for high moisture content sludge as claimed in any one of claims 1 to 3, wherein: the device also comprises a motor, wherein the motor is arranged on the stirring box, an output shaft of the motor extends into the stirring box, and the output shaft is connected with a mechanical stirring piece.
5. The integrated treatment and packing apparatus for high moisture content sludge as claimed in any one of claims 1 to 3, wherein: the device still includes motor and hydraulic pressure stirring vane, hydraulic pressure stirring vane sets up in the flocculation agitator tank, the motor sets up on the flocculation agitator tank, its output shaft stretches into in the flocculation agitator tank, and connect in hydraulic pressure stirring vane.
6. The integrated treatment and filling apparatus for high moisture content sludge as claimed in claim 5, wherein: the hydraulic stirring blade is communicated with the flocculating agent storage tank and is provided with a plurality of hydraulic holes; the hydraulic hole is used for spraying the flocculating agent from the flocculating agent storage tank into the flocculation stirring box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020270609.1U CN212104120U (en) | 2020-03-08 | 2020-03-08 | Integrated treatment and filling device for high-water-content sludge |
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| CN202020270609.1U CN212104120U (en) | 2020-03-08 | 2020-03-08 | Integrated treatment and filling device for high-water-content sludge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582505A (en) * | 2021-08-04 | 2021-11-02 | 江苏科技大学 | Continuous type high-water-content mud decrement hardening system and method |
| CN113955918A (en) * | 2021-10-12 | 2022-01-21 | 中国水利水电第七工程局有限公司 | Chemical flocculation-vacuum preloading-solidification integrated sludge treatment device and method |
-
2020
- 2020-03-08 CN CN202020270609.1U patent/CN212104120U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582505A (en) * | 2021-08-04 | 2021-11-02 | 江苏科技大学 | Continuous type high-water-content mud decrement hardening system and method |
| CN113582505B (en) * | 2021-08-04 | 2023-03-21 | 江苏科技大学 | Continuous type high-water-content mud decrement hardening system and method |
| CN113955918A (en) * | 2021-10-12 | 2022-01-21 | 中国水利水电第七工程局有限公司 | Chemical flocculation-vacuum preloading-solidification integrated sludge treatment device and method |
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