CN104261641B - The sorting dewatering unit of a kind of river and reservoir deposits and technique - Google Patents

The sorting dewatering unit of a kind of river and reservoir deposits and technique Download PDF

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Publication number
CN104261641B
CN104261641B CN201410459493.5A CN201410459493A CN104261641B CN 104261641 B CN104261641 B CN 104261641B CN 201410459493 A CN201410459493 A CN 201410459493A CN 104261641 B CN104261641 B CN 104261641B
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silt
overflow
sorting
underflow
opening
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CN104261641A (en
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杨兴华
刘培坤
张悦刊
徐庆芝
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/127Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/122Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007Contaminated open waterways, rivers, lakes or ponds

Abstract

The invention discloses sorting dewatering unit and the technique of a kind of river and reservoir deposits.Described sorting dewatering unit, comprises organic sorting unit and silt dewatering unit, silt dewatering unit, comprises centrifugal classification device, point bucket and pressure filter.The present invention utilizes organic sorting unit that the silt of river, reservoir is carried out effective sorting, the organic matter sub-elected is collected and transports methane-generating pit or processing organic fertilizer to, the silt sub-elected realizes dehydration through centrifugal classification device, point bucket and the further centrifugal classification of pressure filter, flocculation sediment and filter press concentration successively, containing few moisture in the filter cake finally formed, be convenient to placement, floor space is little, occupying field when drastically reduce the area silt sedimentation, effectively prevent silt loss simultaneously.In addition, the sorting dewatering unit that the present invention addresses, also has the advantages such as structure is simple, continuity is run, simple and convenient.

Description

The sorting dewatering unit of a kind of river and reservoir deposits and technique
Technical field
The present invention relates to the sorting dewatering unit of a kind of river and reservoir deposits and adopt the river of described sorting dewatering unit and the sorting dewatering process of reservoir deposits.
Background technology
China's area is wide, and the river of high concentration of sediment is numerous, and the problem of river and reservoir sediment accumulation is very serious.River sediment alluvial brings much harm: move after (1) bank erosion water front, jeopardize the safety of the communal facilitys such as bank resident's buildings or structures and traffic, the energy, farmland, water conservancy; (2) channel aggradation river course shoals, and drains off floodwaters, rushes down the decline of big vast ability, affect shipping and cause flooding of rivers; (3) estuary sedimentation causes bay function serious degradation, affects the Sustainable development of port city.In addition, the problem of reservoir sediment accumulation is also very outstanding, and China's reservoir is relatively little and be distributed in the rocky basins such as the Yellow River more, and it is serious that Sediment Siltation can cause reservoir capacity to lose, and annual storage capacity loss accounts for the 0.5%-0.1% of full reservoir capacity.
The means mainly mechanical desilting of Sediment Siltation is reduced in prior art.At present, mechanical desilting technique mainly contains following several: 1. to be excavated by silt by excavating gear on dredger and transported to bank by hull; 2. utilize ship power to drive water pump, produce High-Pressure Water and enter water jet standpipe, by installing the water pistol injection current on water jet standpipe, the silt of deposition river bed being blown and stirs into turbid water shape, flowing away with river, thus play desilting effect; 3. utilize pump to be extracted by silt, and use the transport units such as pipeline to be transported to bank.
But all there is drawback in above-mentioned three kinds of mechanical desilting techniques: 1. the plant desilting technique is not suitable for deepwater work, and operation limitation is large; The 2. to plant desilting mode efficiency low, and that downstream sediment can be caused to deposit increases the weight of simultaneously, can not tackle the problem at its root; 3. the plant desilting mode, and to operate nimble property poor, and can occupy a large amount of soil during cleaning silt, meanwhile, owing to containing a large amount of moisture in mud, very easily form silt loss, property and the safety of the people in serious threat.
Summary of the invention
For the above-mentioned technical problem existed in prior art, the present invention proposes the sorting dewatering unit of a kind of river and reservoir deposits, this apparatus structure be simple, easy and simple to handle, energy-conserving and environment-protective, sorting and dehydrating effect good.
To achieve these goals, the present invention adopts following technical scheme:
A sorting dewatering unit for river and reservoir deposits, comprises organic sorting unit and silt dewatering unit, wherein:
Organic sorting unit, comprises the first swirler and steel basin;
First swirler is positioned at steel basin inside and adopts upside down, and the first swirler offers the first opening for feed, the first overflow port and the first underflow opening;
An organic matter and silt mixture transfer line are set in the first opening for feed front;
Steel basin lower sides offers silt mouth;
Silt dewatering unit, comprises centrifugal classification device, point bucket and pressure filter;
Centrifugal classification device, comprises the second swirler and three cuff technique, and the second swirler offers the second opening for feed, the second overflow port and the second underflow opening, and three cuff technique offers the 3rd opening for feed, the 3rd overflow port and the 3rd underflow opening;
A silt transfer line is set between silt mouth and the second opening for feed;
One article of overflow product transfer line is set between the second overflow port and the 3rd opening for feed, overflow product transfer line is provided with flocculant mixing device;
Second underflow opening and the 3rd underflow opening are connected with the entrance of point bucket respectively;
Pressure filter is positioned at point bucket rear and is connected with the outlet of point bucket.
Further, be provided with mixing component bottom above-mentioned steel basin, the first swirler is positioned at above mixing component.
Further, organic matter and silt mixture transfer line are provided with shell pump.
Further, silt transfer line is provided with stock pump.
In addition, the invention allows for the sorting dewatering process of a kind of river and reservoir deposits, it adopts following technical scheme:
A sorting dewatering process for river and reservoir deposits, adopts the sorting dewatering unit of above-mentioned river and reservoir deposits, and it comprises following sorting dehydrating step:
It is inner that S1, river, reservoir deposits are transported to the first swirler by organic and silt mixture transfer line, and carry out sorting in the first swirler inside and obtain the first underflow product and the first overflow product, first underflow product is discharged by the first underflow opening, and the first overflow product escapes and enter steel basin inside by the first overflow port;
S2, that the first overflow product entering steel basin inside is transported to the second swirler through silt mouth by silt transfer line is inner, and carry out sorting in the second swirler inside and obtain the second underflow product and the second overflow product, second underflow product escapes and enter in point bucket by the second underflow opening, and the second overflow product is discharged by the second overflow port;
S3, that the second overflow product of discharging through the second overflow port is transported to three cuff technique by overflow product transfer line is inner, in the second overflow product, flocculation agent is added and fully mixing in course of conveying, the the second overflow product being mixed into flocculation agent carries out sorting and obtains the 3rd underflow product and the 3rd overflow product in three cuff technique inside, 3rd underflow product escapes and enter in point bucket by the 3rd underflow opening, and the 3rd overflow product is discharged by the 3rd overflow port;
S4, the second underflow product and the 3rd underflow product dewater further and obtain sand setting in point bucket;
S5, the sand setting obtained through undue bucket enter pressure filter press filtration and become filter cake, and the moisture in pressure-filtering process is directly discharged;
Wherein, the first underflow product is organic, and the first overflow product is silt.
Further, be provided with mixing component bottom above-mentioned steel basin, the first swirler is positioned at above mixing component;
In above-mentioned steps S2, at the first overflow product before silt mouth is discharged, mixing component is utilized to stir it.
Tool of the present invention has the following advantages:
The sorting dewatering unit that the present invention addresses, comprises organic sorting unit and silt dewatering unit, silt dewatering unit, comprises centrifugal classification device, point bucket and pressure filter.The present invention utilizes organic sorting unit that the silt of river, reservoir is carried out effective sorting, the organic matter sub-elected is collected and transports methane-generating pit or processing organic fertilizer to, the silt sub-elected carries out further centrifugal classification, flocculation sediment and filter press concentration through centrifugal classification device, point bucket and pressure filter successively and realizes dehydration, containing few moisture in the filter cake finally formed, be convenient to placement, floor space is little, occupying field when drastically reduce the area silt sedimentation, effectively prevent silt loss simultaneously.In addition, the sorting dewatering unit that the present invention addresses, the advantage such as also have that structure is simple, continuity is run and simple and convenient.In addition, the second overflow product dependence surplus pressure due to the second swirler directly enters three cuff technique and carries out centrifugal classification, does not need to increase extra power consumption, can reach energy-saving and cost-reducing object.
Accompanying drawing explanation
Fig. 1 is the structural representation of the sorting dewatering unit of river and reservoir deposits in the present invention;
Fig. 2 is the schematic flow sheet of the sorting dewatering process of river and reservoir deposits in the present invention;
Wherein, 1-first swirler, 2-steel basin, 3-organic matter and silt mixture transfer line, 4-shell pump, 5-mixing component, 6-second swirler, 7-three cuff technique, 8-divides bucket, 9-pressure filter, 10-silt transfer line, 11-stock pump, 12-overflow product transfer line, 13-flocculant mixing device;
A-first opening for feed, B-first overflow port, C-first underflow opening, D-silt mouth, E-second opening for feed, F-second overflow port, G-second underflow opening, H-the 3rd opening for feed, I-the 3rd overflow port, J-the 3rd underflow opening.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
Shown in composition graphs 1, the sorting dewatering unit of a kind of river and reservoir deposits, comprises organic sorting unit and silt dewatering unit.Wherein, organic sorting unit, for carrying out effective sorting to river and reservoir deposits, obtains organic matter and silt, the organic matter sub-elected is recycled, and the silt sub-elected then realizes dehydration through the further centrifugal classification of silt dewatering unit, flocculation sediment and filter press concentration.
Organic sorting unit, comprises the first swirler 1 and steel basin 2.
First swirler 1 offers the first opening for feed A, the first overflow port B and the first underflow opening C.First swirler 1, is positioned at steel basin 2 inner and adopt upside down, and namely down, the first underflow opening C is directed upwardly in the first overflow port B direction.
An organic matter and silt mixture transfer line 3 are set in the first opening for feed A front, organic matter and silt mixture transfer line 3 are provided with shell pump 4.
By shell pump 4, river and reservoir deposits can be extracted, and it is inner to send into the first swirler 1.
Steel basin 2 lower sides offers silt mouth D.
The present invention adopts inverted first swirler, can be sorted out by the organic matter be mixed with in silt fast and efficiently, makes organic matter can recycling.
In addition, in order to obtain good sediment sorting effect, mixing component 5 can also be set bottom steel basin 2.The silt sub-elected is stirred by mixing component 5 bottom steel basin 2, avoids silt to occur precipitation.
Silt dewatering unit, comprises centrifugal classification device, point bucket 8 and pressure filter 9.
Centrifugal classification device, comprise the second swirler 6 and three cuff technique 7, second swirler 6 offers the second opening for feed E, the second overflow port F and the second underflow opening G, three cuff technique 7 offers the 3rd opening for feed H, the 3rd overflow port I and the 3rd underflow opening J.
A silt transfer line 10 is set between silt mouth D and the second opening for feed E, silt transfer line 10 is provided with stock pump 11.It is inner that the silt sub-elected squeezes into the second swirler 6 through silt mouth D by stock pump 11.
One article of overflow product transfer line 12 is set between the second overflow port F and the 3rd opening for feed H, overflow product transfer line 12 is provided with flocculant mixing device 13.
Second underflow opening G and the 3rd underflow opening J are connected with the entrance of point bucket 8 respectively.
Pressure filter 9 is positioned at point bucket 8 rear and is connected with the outlet of point bucket 8.
By above silt dewatering unit, the moisture in energy effective elimination silt, reduces the floor space of transportation cost and storage.In addition, by shell pump 4 and stock pump 11 and the collaborative work of above-mentioned organic sorting unit, silt dewatering unit, can ensure that the continuity of whole sorting dewatering unit is run.The sorting dewatering process of river and reservoir deposits in the present invention is specifically described below in conjunction with above-mentioned sorting dewatering unit:
Shown in composition graphs 2, the sorting dewatering process of a kind of river and reservoir deposits, it comprises following sorting dehydrating step:
1, silt is extracted: utilize shell pump 4 river, reservoir deposits to be extracted, and it is inner to be transported to the first swirler 1 by silt mixture transfer line 3.
2, sorting is organic: the cement mortar of the first swirler 1 inside carries out sorting fast and effectively, obtains the first underflow product and the first overflow product, and wherein, the first underflow product is organic, and the first overflow product is silt.The organic first underflow opening C that passes through discharges, and it is inner that silt escapes and enter steel basin 2 by the first overflow port B.
The organic matter sub-elected can transport methane-generating pit to and make it turn waste into wealth to produce biogas provide combustion gas and illumination for people or for being made into organic fertilizer, realize organic recycling.
Silt in the present invention, refers to silt in the river and reservoir that the reasons such as soil erosion cause; Organic matter, refers to the plant and animal residues and greasy dirt that contain in silt.
3, stir: in order to obtain good sediment sorting effect, silt is stirred by mixing component 5 in steel basin 2.
4, the first centrifugal classification of silt: it is inner that silt squeezes into the second swirler 6 through silt mouth D by stock pump 11, carry out first centrifugal classification, obtain the second underflow product and the second overflow product, second underflow product escapes and enter in point bucket 8 by the second underflow opening G, and the second overflow product is discharged by the second overflow port F.
5, in the second overflow product, adding flocculation agent, and by flocculant mixing device 13, second overflow product is fully mixed with flocculation agent, is that prerequisite preparation is done in the dehydration of three cuff technique.
6, silt secondary centrifuging sorting: directly enter three cuff technique 7 after the second overflow product fully contacts with flocculation agent, and carry out sorting by surplus pressure.
Because the inlet pressure of three cuff technique 7 is little, after second overflow product enters three cuff technique 7, separation velocity is little, flocculation agent and silt fully react in three cuff technique 7, escape and enter in point bucket 8 as the 3rd underflow product by the 3rd underflow opening J, under the impact of flocculation agent and low pressure, the 3rd overflow product that sorting obtains contains silt hardly and in clear water state, is directly discharged to korneforos by the 3rd overflow port I.The object that centrifugal classification device removes clear water is achieved in this process.
7, divide bucket to dewater: the second underflow product and the 3rd underflow product dewater further in point bucket 8, reduce the moisture of silt, enter pressure filter 9 through the undue bucket sand setting obtained that dewaters, the moisture deviate from enters korneforos.
8, pressure filter press filtration: the sand setting containing a small amount of moisture enters pressure filter press filtration and becomes filter cake, and moisture is directly discharged.Containing few moisture in filter cake, be convenient to place, floor space is little.
Certainly; more than illustrate and be only preferred embodiment of the present invention; the present invention is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the instruction of this specification sheets; made all equivalently to substitute, obvious variant, within the essential scope all dropping on this specification sheets, protection of the present invention ought to be subject to.

Claims (6)

1. a sorting dewatering unit for river and reservoir deposits, is characterized in that, comprises organic sorting unit and silt dewatering unit, wherein:
Organic sorting unit, comprises the first swirler and steel basin;
First swirler is positioned at steel basin inside and adopts upside down, and the first swirler offers the first opening for feed, the first overflow port and the first underflow opening;
An organic matter and silt mixture transfer line are set in the first opening for feed front;
Steel basin lower sides offers silt mouth;
Silt dewatering unit, comprises centrifugal classification device, point bucket and pressure filter;
Centrifugal classification device, comprises the second swirler and three cuff technique, and the second swirler offers the second opening for feed, the second overflow port and the second underflow opening, and three cuff technique offers the 3rd opening for feed, the 3rd overflow port and the 3rd underflow opening;
A silt transfer line is set between silt mouth and the second opening for feed;
One article of overflow product transfer line is set between the second overflow port and the 3rd opening for feed, overflow product transfer line is provided with flocculant mixing device;
Second underflow opening and the 3rd underflow opening are connected with the entrance of point bucket respectively;
Pressure filter is positioned at point bucket rear and is connected with the outlet of point bucket.
2. the sorting dewatering unit of a kind of river according to claim 1 and reservoir deposits, is characterized in that, is provided with mixing component bottom described steel basin, and the first swirler is positioned at above mixing component.
3. the sorting dewatering unit of a kind of river according to claim 1 and reservoir deposits, is characterized in that, organic matter and silt mixture transfer line are provided with shell pump.
4. the sorting dewatering unit of a kind of river according to claim 1 and reservoir deposits, is characterized in that, silt transfer line is provided with stock pump.
5. a sorting dewatering process for river and reservoir deposits, is characterized in that, adopts the sorting dewatering unit of river and reservoir deposits as defined in claim 1, comprises following sorting dehydrating step:
It is inner that S1, river, reservoir deposits are transported to the first swirler by organic and silt mixture transfer line, and carry out sorting in the first swirler inside and obtain the first underflow product and the first overflow product, first underflow product is discharged by the first underflow opening, and the first overflow product escapes and enter steel basin inside by the first overflow port;
S2, that the first overflow product entering steel basin inside is transported to the second swirler through silt mouth by silt transfer line is inner, and carry out sorting in the second swirler inside and obtain the second underflow product and the second overflow product, second underflow product escapes and enter in point bucket by the second underflow opening, and the second overflow product is discharged by the second overflow port;
S3, that the second overflow product of discharging through the second overflow port is transported to three cuff technique by overflow product transfer line is inner, in the second overflow product, flocculation agent is added and fully mixing in course of conveying, the the second overflow product being mixed into flocculation agent carries out sorting and obtains the 3rd underflow product and the 3rd overflow product in three cuff technique inside, 3rd underflow product escapes and enter in point bucket by the 3rd underflow opening, and the 3rd overflow product is discharged by the 3rd overflow port;
S4, the second underflow product and the 3rd underflow product dewater further and obtain sand setting in point bucket;
S5, the sand setting obtained through undue bucket enter pressure filter press filtration and become filter cake, and the moisture in pressure-filtering process is directly discharged;
Wherein, the first underflow product is organic, and the first overflow product is silt.
6. the sorting dewatering process of a kind of river according to claim 5 and reservoir deposits, is characterized in that, is provided with mixing component bottom described steel basin, and the first swirler is positioned at above mixing component;
In described step S2, at the first overflow product before silt mouth is discharged, mixing component is utilized to stir it.
CN201410459493.5A 2014-09-10 2014-09-10 The sorting dewatering unit of a kind of river and reservoir deposits and technique Active CN104261641B (en)

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