CN109704540A - River and lake silt integral treatment method and device - Google Patents
River and lake silt integral treatment method and device Download PDFInfo
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- CN109704540A CN109704540A CN201910089650.0A CN201910089650A CN109704540A CN 109704540 A CN109704540 A CN 109704540A CN 201910089650 A CN201910089650 A CN 201910089650A CN 109704540 A CN109704540 A CN 109704540A
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Abstract
The present invention relates to a kind of river and lake silt integral treatment method and devices.It specifically, is the integral treatment method and device quickly handled for the mud generated in the process to river and lake dredging.Its spy be successively include screening, flocculation, dehydration and solidification and etc..The characteristics of device of implementation of lake-river mud integral treatment method be include sorting mechanism, flocculation basin, dewaterer and curing, between sorting mechanism and flocculation basin, flocculation basin be connected by dredge pump between dewaterer, the dewaterer is connected by conveyer with curing.In this way with equipment treated river and lake silt, it can be used not only as engineering earth, avoid argillization again, eliminate the secondary pollution of environment, also can avoid the waste of land resource.
Description
Technical field
The present invention relates to a kind of process for treating sludge and devices.It specifically, is for being generated to during river and lake dredging
The integral treatment method and device that mud is quickly handled.
Background technique
It is well known that a large amount of mud will necessarily be generated by carrying out dredging to river and lake.Wherein, river and lake dredging is mainly using underwater
It stirs the methods of dry digging of suction, artificial hydraulicking or digging machine the sludge treatment in river and lake is debarked, and silt stockyard is selected to carry out heap
It puts, makes its natural consolidation.And it is greater than 30% from the mud of river and lake processing disembarkation in muddy, and the clay content less than 5 microns,
Partial size is small, this is just determined, and river and lake silt moisture content is high, consolidation rate is slow, and intensity is low after consolidation.In addition, some river and lake silts
In, also contain poisonous and harmful substances.
Due to using natural consolidation, consolidation rate is slow, occupies a large amount of soils, causes the waste of land resource.
Again since the mud intensity after consolidation is low, not only Exploiture of cropland utilization cannot be directly carried out in stockyard, can not also made
It is used for engineering earth.
In addition, after consolidation, meeting rain drop erosion due to containing poisonous and harmful substances in some river and lake silts, not only weighing
New argillization becomes mud again, and poisonous and harmful substances therein are easy exudation, can cause secondary pollution to environment.
Summary of the invention
The invention solves a problem be to provide a kind of river and lake silt integral treatment method.Come in this way
River and lake silt is handled, engineering earth is can be used not only as, avoids argillization again, eliminate the secondary pollution of environment, also can avoid soil
The waste of resource.
The invention solves another problem be to provide the device of implementation of lake-river mud integral treatment method a kind of.
The invention solves the above problem be realized by the following technical scheme:
The characteristics of river and lake silt integral treatment method of the invention successively the following steps are included:
Firstly, screening to river and lake silt slurry, major diameter particulate matter therein is removed；
Then, flocculant is added in the river and lake silt slurry without major diameter particulate matter, and is uniformly mixed, make river and lake silt slurry with
Flocculant mutually merges, and forms mud floc sedimentation；
Later, mud floc sedimentation is dehydrated, obtains walk of the moisture content less than 40%；
Finally, curing agent is added in above-mentioned walk, and it is uniformly mixed, walk is modified to available finished product soil.
The major diameter particulate matter refers to that partial size is equal to or more than the sand grains and rubbish of 2mm.
The flocculant be polymer alumina (PAC) solution that weight content is 3% ~ 5 % and weight content be 0.15% ~
0.25 cationic polyacrylamide (PAM) solution；Wherein, the polymer alumina being added in every cubic metre of river and lake silt slurry
(PAC) quantity of solution and cationic polyacrylamide (PAM) solution is 15 ~ 25 liters and 20 ~ 60 liters respectively.
The curing agent contains the first curing agent, the second curing agent and third curing agent.
First curing agent is according to cement: flyash: land plaster=30:65:5 weight ratio mixes.
Second curing agent is by cement: flyash: blast furnace ground-slag: calcium oxide: land plaster=30::30:30:5:5:
Weight ratio mixes；
The third curing agent is according to cement: flyash: blast furnace ground-slag: calcium oxide: land plaster: sodium sulphate=30:20:35:
The weight ratio of 10:4:1 mixes；
Cement therein is the mixture of portland cement or sulphate aluminium cement or portland cement and sulphate aluminium cement.
The characteristics of equipment of implementation of lake-river mud integral treatment method, is: including sorting mechanism, flocculation basin, dewaterer and
Curing, between sorting mechanism and flocculation basin, flocculation basin be connected by dredge pump between dewaterer, the dewaterer is by conveyer
It is connected with curing.
The sorting mechanism is vibrating screen or drum screen.
The flocculation basin contains pond body and the first blender.
The dewaterer is high pressure plate and frame filter press or supercentrifuge.
The conveyer is screw conveyor or belt conveyor.
The curing contains storage hopper dredger and the second blender.
Since river and lake silt integral treatment method of the invention contains screening, flocculation, dehydration and solidification, pass through
Implement the equipment of the method for the present invention, the river and lake silt that can be come out to dredging is directly handled.River and lake is become silted up with background technique
Mud, which piles up stockyard, allows its natural consolidation to compare, and consolidation rate is fast, does not have to silt stockyard, is not take up soil, avoids land resource
Waste.Again due to the present invention containing screening, flocculation, dehydration and solidification and etc., river and lake silt after processing, both can be used directly
Make engineering earth, it is also possible to backfill, dyke, road and greening with soil, realize the seamless interfacing of dredging and sludge treatment, will
River and lake silt as waste becomes useful soil resource.In addition, due to being realized at dredging and mud using the present invention
The seamless interfacing of reason is not required to silt stockyard, and chance water washes away again argillization, becomes mud again after not only can avoid silt consolidation
It happens, and can avoid the exudation of the poisonous and harmful substances in yard sludge, to eliminate secondary caused by environment
Pollution.
Detailed description of the invention
Fig. 1 is the schematic device of implementation of lake-river mud integral treatment method.
Specific embodiment
The present invention is described in further details with reference to embodiments.
Embodiment one
River and lake silt integral treatment method of the invention successively the following steps are included:
Firstly, screening to river and lake silt slurry, major diameter particulate matter therein is removed.The major diameter particulate matter refers to partial size
Sand grains and rubbish equal to or more than 2mm.
Then, flocculant is added in the river and lake silt slurry without major diameter particulate matter, and is uniformly mixed, make river and lake silt
Slurry is mutually merged with flocculant, forms mud floc sedimentation.The flocculant is polymer alumina (PAC) solution that weight content is 3%
Cationic polyacrylamide (PAM) solution for being 0.15% with weight content.Wherein, it is added in every cubic metre of river and lake silt slurry
The quantity of polymer alumina (PAC) solution and cationic polyacrylamide (PAM) solution is 15 liters and 20 liters respectively.
Later, mud floc sedimentation is dehydrated, obtains the walk that moisture content is 37%.
Finally, curing agent is added in above-mentioned walk, and it is uniformly mixed, walk is modified to available finished product soil.Institute
It states curing agent and contains the first curing agent, the second curing agent and third curing agent.First curing agent is according to cement: fine coal
Ash: land plaster=30:65:5 weight ratio mixes.Second curing agent is according to cement: flyash: blast furnace ground-slag:
Calcium oxide: land plaster=30:30:30:5:5 weight ratio mixes.The third curing agent is according to cement: flyash:
Blast furnace ground-slag: calcium oxide: land plaster: sodium sulphate=30:20:35:10:4:1 weight ratio mixes.The cement can be with
It is portland cement, is also possible to sulphate aluminium cement, can also be portland cement and sulphate aluminium cement according to any ratio
Example mixes.In the present embodiment, cement used is portland cement.
Wherein:
It is mixed using the first curing agent with walk, the soil of finished product made of being modified can be used as backfill soil；
It is mixed using the second curing agent with walk, the soil of finished product made of being modified can be used as dyke soil；
It is mixed using third curing agent with walk, the soil of finished product made of being modified can be used as road soil.
As shown in Figure 1, the present invention provides river and lake silt integrations to implement above-mentioned river and lake silt integral treatment method
Processing unit.The device contains sorting mechanism, flocculation basin, dewaterer and curing, between sorting mechanism and flocculation basin, flocculation basin with
It is connected by dredge pump between dewaterer, the dewaterer is connected by conveyer with curing.
The sorting mechanism can be vibrating screen, be also possible to drum screen.In the present embodiment, sorting mechanism used is vibration
Sieve.Mud sump is deposited in being arranged with for vibrating screen.The river and lake silt sent by dredging work is starched after vibrating screen screens, and is eliminated
In, sand grains and rubbish greater than 2mm, mud, sand grains and rubbish of the partial size less than 2mm leaks into and deposits in mud sump.It is described deposit mud sump with
It is connected by pipeline with dredge pump between flocculation basin, dredge pump therein is that high pressure dredge pump will be screened by high pressure dredge pump and pipeline
Deposit in mud sump river and lake silt slurry be sent into flocculation basin in.
The flocculation basin contains pond body and the first blender.The pond body be box-shaped, first blender by motor, stir
The blade composition mixed axis and be connected to agitating shaft lower part.The motor is mounted at the top of pond body by bracket, and output shaft is downward
And be connected with agitating shaft upper end, agitating shaft connects vaned one end and protrudes into pond body.When work, flocculant is added in pond body,
The blade for being driven by a motor agitating shaft and agitating shaft lower part rotates together, the intracorporal river and lake silt slurry in pond and flocculant is mixed equal
It is even, it merges river and lake silt slurry mutually with flocculant, forms mud floc sedimentation.The flocculant is the polymeric oxygen that weight content is 3%
Change cationic polyacrylamide (PAM) solution that aluminium (PAC) solution and weight content are 0.15%.Wherein, every cubic metre of river and lake is become silted up
The quantity of polymer alumina (PAC) solution and cationic polyacrylamide (PAM) solution that are added in mud be respectively 15 liters and
20 liters.
The dewaterer can be high pressure plate and frame filter press, be also possible to supercentrifuge.In the present embodiment, dehydration used
Machine is high pressure plate and frame filter press, filter area 500m2, it is 1.6Mpa into mud pressure, maximal pressure force value is 12.5Mpa, work
Making the period is 120 minutes.After being dehydrated by dewaterer to mud floc sedimentation, the moisture content of mud floc sedimentation is made to be down to 37%.
The conveyer is screw conveyor, is also possible to belt conveyor.In the present embodiment, conveyer used is spiral
Conveyer.By screw conveyor, the mud floc sedimentation that moisture content is 37% is sent into curing.
The curing contains storage hopper dredger and the second blender.The storage hopper dredger is cylindrical container, second stirring
Device is made of motor, agitating shaft and the blade being connected on agitating shaft.
When work, curing agent is added in storage hopper dredger, and the blade being driven by a motor on agitating shaft and agitating shaft revolves together
Turn, be uniformly mixed mud floc sedimentation with curing agent, mud walk is modified to available finished product soil.The curing agent contains
One curing agent, the second curing agent and third curing agent.First curing agent is according to portland cement: flyash: land plaster=
The weight ratio of 30:65:5 mixes.Second curing agent is according to cement: flyash: blast furnace ground-slag: calcium oxide: stone
Cream powder=30:30:30:5:5 weight ratio mixes.The third curing agent is according to cement: flyash: blast furnace ground-slag:
Calcium oxide: land plaster: sodium sulphate=30:20:35:10:4:1 weight ratio mixes.The cement can be silicate cement
Mud is also possible to sulphate aluminium cement, can also be that portland cement and sulphate aluminium cement are mixed according to arbitrary proportion.
In the present embodiment, cement used is portland cement
Wherein:
It is mixed using the first curing agent with walk, the soil of finished product made of being modified can be used as backfill soil；
It is mixed using the second curing agent with walk, the soil of finished product made of being modified can be used as dyke soil；
It is mixed using third curing agent with walk, the soil of finished product made of being modified can be used as road soil.
In short, as needed, different curing agent can be selected.Any curing agent is specifically selected, is depended on the needs.At this
In embodiment, selection is the first curing agent, and after mixing with walk, the soil of finished product made of being modified can be used as backfill soil.
Embodiment two
River and lake silt integral treatment method of the invention successively the following steps are included:
Firstly, screening to river and lake silt slurry, major diameter particulate matter therein is removed.The major diameter particulate matter refers to partial size
Sand grains and rubbish equal to or more than 2mm.
Then, flocculant is added in the river and lake silt slurry without major diameter particulate matter, and is uniformly mixed, make river and lake silt
Slurry is mutually merged with flocculant, forms mud floc sedimentation.The flocculant is polymer alumina (PAC) solution that weight content is 4%
Cationic polyacrylamide (PAM) solution for being 0.20% with weight content.Wherein, it is added in every cubic metre of river and lake silt slurry
The quantity of polymer alumina (PAC) solution and cationic polyacrylamide (PAM) solution is 20 liters and 40 liters respectively.
Later, mud floc sedimentation is dehydrated, obtains the walk that moisture content is 38%.
Finally, curing agent is added in above-mentioned walk, and it is uniformly mixed, walk is modified to available finished product soil.Institute
It states curing agent and contains the first curing agent, the second curing agent and third curing agent.First curing agent is according to cement: fine coal
Ash: land plaster=30:65:5 weight ratio mixes.Second curing agent is according to cement: flyash: blast furnace ground-slag:
Calcium oxide: land plaster=30:30:30:5:5 weight ratio mixes.The third curing agent is according to cement: flyash:
Blast furnace ground-slag: calcium oxide: land plaster: sodium sulphate=30:20:35:10:4:1 weight ratio mixes.The cement can be with
It is portland cement, is also possible to sulphate aluminium cement, can also be portland cement and sulphate aluminium cement according to any ratio
Example mixes.In the present embodiment, cement used is sulphate aluminium cement.
Wherein:
It is mixed using the first curing agent with walk, the soil of finished product made of being modified can be used as backfill soil；
It is mixed using the second curing agent with walk, the soil of finished product made of being modified can be used as dyke soil；
It is mixed using third curing agent with walk, the soil of finished product made of being modified can be used as road soil.
As shown in Figure 1, the present invention provides river and lake silt integrations to implement above-mentioned river and lake silt integral treatment method
Processing unit.The device contains sorting mechanism, flocculation basin, dewaterer and curing, between sorting mechanism and flocculation basin, flocculation basin with
It is connected by dredge pump between dewaterer, the dewaterer is connected by conveyer with curing.
The sorting mechanism can be vibrating screen, be also possible to drum screen.In the present embodiment, sorting mechanism used is vibration
Sieve.Mud sump is deposited in being arranged with for vibrating screen.The river and lake silt sent by dredging work is starched after vibrating screen screens, and is eliminated
In, sand grains and rubbish greater than 2mm, mud, sand grains and rubbish of the partial size less than 2mm leaks into and deposits in mud sump.It is described deposit mud sump with
It is connected by pipeline with dredge pump between flocculation basin, dredge pump therein is that high pressure dredge pump will be screened by high pressure dredge pump and pipeline
Deposit in mud sump river and lake silt slurry be sent into flocculation basin in.
The flocculation basin contains pond body and the first blender.The pond body be box-shaped, first blender by motor, stir
The blade composition mixed axis and be connected to agitating shaft lower part.The motor is mounted at the top of pond body by bracket, and output shaft is downward
And be connected with agitating shaft upper end, agitating shaft connects vaned one end and protrudes into pond body.When work, flocculant is added in pond body,
The blade for being driven by a motor agitating shaft and agitating shaft lower part rotates together, the intracorporal river and lake silt slurry in pond and flocculant is mixed equal
It is even, it merges river and lake silt slurry mutually with flocculant, forms mud floc sedimentation.The flocculant is the polymeric oxygen that weight content is 4%
Change cationic polyacrylamide (PAM) solution that aluminium (PAC) solution and weight content are 0.20%.Wherein, every cubic metre of river and lake is become silted up
The quantity of polymer alumina (PAC) solution and cationic polyacrylamide (PAM) solution that are added in mud be respectively 20 liters and
40 liters.
The dewaterer can be high pressure plate and frame filter press, be also possible to supercentrifuge.In the present embodiment, dehydration used
Machine is high pressure plate and frame filter press, filter area 500m2, it is 1.6Mpa into mud pressure, maximal pressure force value is 12.5Mpa, work
Making the period is 90 minutes.After being dehydrated by dewaterer to mud floc sedimentation, the moisture content of mud floc sedimentation is made to be down to 38%.
The conveyer is screw conveyor, is also possible to belt conveyor.In the present embodiment, conveyer used is spiral
Conveyer.By screw conveyor, the mud floc sedimentation that moisture content is 38% is sent into curing.
The curing contains storage hopper dredger and the second blender.The storage hopper dredger is cylindrical container, second stirring
Device is made of motor, agitating shaft and the blade being connected on agitating shaft.
When work, curing agent is added in storage hopper dredger, and the blade being driven by a motor on agitating shaft and agitating shaft revolves together
Turn, be uniformly mixed mud floc sedimentation with curing agent, mud walk is modified to available finished product soil.The curing agent contains
One curing agent, the second curing agent and third curing agent.First curing agent is according to portland cement: flyash: land plaster=
The weight ratio of 30:65:5 mixes.Second curing agent is according to cement: flyash: blast furnace ground-slag: calcium oxide: stone
Cream powder=30:30:30:5:5 weight ratio mixes.The third curing agent is according to cement: flyash: blast furnace ground-slag:
Calcium oxide: land plaster: sodium sulphate=30:20:35:10:4:1 weight ratio mixes.The cement can be silicate cement
Mud is also possible to sulphate aluminium cement, can also be that portland cement and sulphate aluminium cement are mixed according to arbitrary proportion.
In the present embodiment, cement used is portland cement
Wherein:
It is mixed using the first curing agent with walk, the soil of finished product made of being modified can be used as backfill soil；
It is mixed using the second curing agent with walk, the soil of finished product made of being modified can be used as dyke soil；
It is mixed using third curing agent with walk, the soil of finished product made of being modified can be used as road soil.
In short, as needed, different curing agent can be selected.Any curing agent is specifically selected, is depended on the needs.At this
In embodiment, selection is the second curing agent, and after mixing with walk, the soil of finished product made of being modified can be used as dyke soil.
Embodiment three
River and lake silt integral treatment method of the invention successively the following steps are included:
Firstly, screening to river and lake silt slurry, major diameter particulate matter therein is removed.The major diameter particulate matter refers to partial size
Sand grains and rubbish equal to or more than 2mm.
Then, flocculant is added in the river and lake silt slurry without major diameter particulate matter, and is uniformly mixed, make river and lake silt
Slurry is mutually merged with flocculant, forms mud floc sedimentation.The flocculant is polymer alumina (PAC) solution that weight content is 5%
Cationic polyacrylamide (PAM) solution for being 0.25% with weight content.Wherein, it is added in every cubic metre of river and lake silt slurry
The quantity of polymer alumina (PAC) solution and cationic polyacrylamide (PAM) solution is 25 liters and 60 liters respectively.
Later, mud floc sedimentation is dehydrated, obtains the walk that moisture content is 39%.
Finally, curing agent is added in above-mentioned walk, and it is uniformly mixed, walk is modified to available finished product soil.Institute
It states curing agent and contains the first curing agent, the second curing agent and third curing agent.First curing agent is according to cement: fine coal
Ash: land plaster=30:65:5 weight ratio mixes.Second curing agent is according to cement: flyash: blast furnace ground-slag:
Calcium oxide: land plaster=30:30:30:5:5 weight ratio mixes.The third curing agent is according to cement: flyash:
Blast furnace ground-slag: calcium oxide: land plaster: sodium sulphate=30:20:35:10:4:1 weight ratio mixes.The cement can be with
It is portland cement, is also possible to sulphate aluminium cement, can also be portland cement and sulphate aluminium cement according to any ratio
Example mixes.In the present embodiment, cement used is with portland cement and sulphate aluminium cement and according to portland cement: sulphur
Aluminate cement=1；1 weight ratio mixes.
Wherein:
It is mixed using the first curing agent with walk, the soil of finished product made of being modified can be used as backfill soil；
It is mixed using the second curing agent with walk, the soil of finished product made of being modified can be used as dyke soil；
It is mixed using third curing agent with walk, the soil of finished product made of being modified can be used as road soil.
As shown in Figure 1, the present invention provides river and lake silt integrations to implement above-mentioned river and lake silt integral treatment method
Processing unit.The device contains sorting mechanism, flocculation basin, dewaterer and curing, between sorting mechanism and flocculation basin, flocculation basin with
It is connected by dredge pump between dewaterer, the dewaterer is connected by conveyer with curing.
The sorting mechanism can be vibrating screen, be also possible to drum screen.In the present embodiment, sorting mechanism used is vibration
Sieve.Mud sump is deposited in being arranged with for vibrating screen.The river and lake silt sent by dredging work is starched after vibrating screen screens, and is eliminated
In, sand grains and rubbish greater than 2mm, mud, sand grains and rubbish of the partial size less than 2mm leaks into and deposits in mud sump.It is described deposit mud sump with
It is connected by pipeline with dredge pump between flocculation basin, dredge pump therein is that high pressure dredge pump will be screened by high pressure dredge pump and pipeline
Deposit in mud sump river and lake silt slurry be sent into flocculation basin in.
The flocculation basin contains pond body and the first blender.The pond body be box-shaped, first blender by motor, stir
The blade composition mixed axis and be connected to agitating shaft lower part.The motor is mounted at the top of pond body by bracket, and output shaft is downward
And be connected with agitating shaft upper end, agitating shaft connects vaned one end and protrudes into pond body.When work, flocculant is added in pond body,
The blade for being driven by a motor agitating shaft and agitating shaft lower part rotates together, the intracorporal river and lake silt slurry in pond and flocculant is mixed equal
It is even, it merges river and lake silt slurry mutually with flocculant, forms mud floc sedimentation.The flocculant is the polymeric oxygen that weight content is 5%
Change cationic polyacrylamide (PAM) solution that aluminium (PAC) solution and weight content are 0.25%.Wherein, every cubic metre of river and lake is become silted up
The quantity of polymer alumina (PAC) solution and cationic polyacrylamide (PAM) solution that are added in mud be respectively 25 liters and
60 liters.
The dewaterer can be high pressure plate and frame filter press, be also possible to supercentrifuge.In the present embodiment, dehydration used
Machine is high pressure plate and frame filter press, filter area 500m2, it is 1.6Mpa into mud pressure, maximal pressure force value is 12.5Mpa, work
Making the period is 60 minutes.After being dehydrated by dewaterer to mud floc sedimentation, the moisture content of mud floc sedimentation is made to be down to 39%.
The conveyer is screw conveyor, is also possible to belt conveyor.In the present embodiment, conveyer used is spiral
Conveyer.By screw conveyor, the mud floc sedimentation that moisture content is 39% is sent into curing.
The curing contains storage hopper dredger and the second blender.The storage hopper dredger is cylindrical container, second stirring
Device is made of motor, agitating shaft and the blade being connected on agitating shaft.
When work, curing agent is added in storage hopper dredger, and the blade being driven by a motor on agitating shaft and agitating shaft revolves together
Turn, be uniformly mixed mud floc sedimentation with curing agent, mud walk is modified to available finished product soil.The curing agent contains
One curing agent, the second curing agent and third curing agent.First curing agent is according to portland cement: flyash: land plaster=
The weight ratio of 30:65:5 mixes.Second curing agent is according to cement: flyash: blast furnace ground-slag: calcium oxide: stone
Cream powder=30:30:30:5:5 weight ratio mixes.The third curing agent is according to cement: flyash: blast furnace ground-slag:
Calcium oxide: land plaster: sodium sulphate=30:20:35:10:4:1 weight ratio mixes.The cement can be silicate cement
Mud is also possible to sulphate aluminium cement, can also be that portland cement and sulphate aluminium cement are mixed according to arbitrary proportion.
In the present embodiment, cement used is with portland cement and sulphate aluminium cement and according to portland cement: sulphate aluminium cement=
The weight ratio of 1:1 mixes.
Wherein:
It is mixed using the first curing agent with walk, the soil of finished product made of being modified can be used as backfill soil；
It is mixed using the second curing agent with walk, the soil of finished product made of being modified can be used as dyke soil；
It is mixed using third curing agent with walk, the soil of finished product made of being modified can be used as road soil.
In short, as needed, different curing agent can be selected.Any curing agent is specifically selected, is depended on the needs.At this
In embodiment, selection is third curing agent, and after mixing with walk, the soil of finished product made of being modified can be used as road soil.
Claims (10)
1. river and lake silt integral treatment method, it is characterised in that successively the following steps are included:
Firstly, screening to river and lake silt slurry, major diameter particulate matter therein is removed；
Then, flocculant is added in the river and lake silt slurry without major diameter particulate matter, and is uniformly mixed, make river and lake silt slurry with
Flocculant mutually merges, and forms mud floc sedimentation；
Later, mud floc sedimentation is dehydrated, obtains walk of the moisture content less than 40%；
Finally, curing agent is added in above-mentioned walk, and it is uniformly mixed, walk is modified to available finished product soil.
2. river and lake silt integral treatment method as described in claim 1, it is characterised in that the major diameter particulate matter refers to
Partial size is equal to or more than the sand grains and rubbish of 2mm.
3. river and lake silt integral treatment method as described in claim 1, it is characterised in that the flocculant is weight content
The cationic polyacrylamide (PAM) that polymer alumina (PAC) solution and weight content for 3% ~ 5 % are 0.15% ~ 0.25 is molten
Liquid；Wherein, polymer alumina (PAC) solution and cationic polyacrylamide (PAM) being added in every cubic metre of river and lake silt slurry
The quantity of solution is 15 ~ 25 liters and 20 ~ 60 liters respectively.
4. river and lake silt integral treatment method as described in claim 1, it is characterised in that it is solid that the curing agent contains first
Agent, the second curing agent and third curing agent；
First curing agent is according to cement: flyash: land plaster=30:65:5 weight ratio mixes；
Second curing agent is by cement: flyash: blast furnace ground-slag: calcium oxide: land plaster=30:30:30:5:5 weight ratio
Example mixes；
The third curing agent is according to cement: flyash: blast furnace ground-slag: calcium oxide: land plaster: sodium sulphate=30:20:35:
The weight ratio of 10:4:1 mixes；
Cement therein is the mixture of portland cement or sulphate aluminium cement or portland cement and sulphate aluminium cement.
5. implementing the river and lake silt integrated treatment unit of claim 1 the method, it is characterised in that including sorting mechanism, wadding
Solidifying pond, dewaterer and curing, between sorting mechanism and flocculation basin, flocculation basin be connected by dredge pump between dewaterer, it is described to take off
Water dispenser is connected by conveyer with curing.
6. river and lake silt integrated treatment unit as claimed in claim 5, it is characterised in that the sorting mechanism is vibrating screen
Or drum screen.
7. river and lake silt integrated treatment unit as claimed in claim 5, it is characterised in that the flocculation basin contain pond body and
First blender.
8. river and lake silt integrated treatment unit as claimed in claim 5, feature is high pressure sheet frame pressure in the dewaterer
Filter or supercentrifuge.
9. river and lake silt integrated treatment unit as claimed in claim 5, it is characterised in that the conveyer is helical feed
Machine or belt conveyor.
10. river and lake silt integrated treatment unit as claimed in claim 5, it is characterised in that the curing contains storage hopper dredger
With the second blender.
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| CN201910089650.0A CN109704540A (en) | 2019-02-01 | 2019-02-01 | River and lake silt integral treatment method and device |
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| CN201910089650.0A CN109704540A (en) | 2019-02-01 | 2019-02-01 | River and lake silt integral treatment method and device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110117098A (en) * | 2019-05-10 | 2019-08-13 | 大成科创基础建设股份有限公司 | A kind of processing method and processing device that discarded slurry recycles |
| CN110255857A (en) * | 2019-05-28 | 2019-09-20 | 路德环境科技股份有限公司 | Low alkali conditioner and dewatering for construction slurry deep dehydration |
| CN110577349A (en) * | 2019-10-23 | 2019-12-17 | 深圳研源环境科技有限公司 | Building slurry treatment process and application |
| CN111500292A (en) * | 2020-04-23 | 2020-08-07 | 中国建筑第二工程局有限公司 | Composite type soil material and application thereof in preparing greening planting soil from river and lake dredging mud |
| 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 |
| CN114315091A (en) * | 2021-11-23 | 2022-04-12 | 河海大学 | Sludge soil chemical dehydration process and treatment system |
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| CN102267797A (en) * | 2011-07-25 | 2011-12-07 | 中国船舶重工集团公司第七○二研究所 | Integral process for ecologically desilting and curing sludge |
| CN209619165U (en) * | 2019-02-01 | 2019-11-12 | 江苏聚慧科技有限公司 | River and lake silt integrated treatment unit |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110117098A (en) * | 2019-05-10 | 2019-08-13 | 大成科创基础建设股份有限公司 | A kind of processing method and processing device that discarded slurry recycles |
| CN110117098B (en) * | 2019-05-10 | 2022-03-01 | 大成科创基础建设股份有限公司 | Treatment method and device for recycling waste slurry |
| CN110255857A (en) * | 2019-05-28 | 2019-09-20 | 路德环境科技股份有限公司 | Low alkali conditioner and dewatering for construction slurry deep dehydration |
| CN110255857B (en) * | 2019-05-28 | 2021-12-14 | 路德环境科技股份有限公司 | Low-alkali conditioner for deep dehydration of building slurry and dehydration method |
| CN110577349A (en) * | 2019-10-23 | 2019-12-17 | 深圳研源环境科技有限公司 | Building slurry treatment process and application |
| CN111500292A (en) * | 2020-04-23 | 2020-08-07 | 中国建筑第二工程局有限公司 | Composite type soil material and application thereof in preparing greening planting soil from river and lake dredging mud |
| 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 |
| CN114315091A (en) * | 2021-11-23 | 2022-04-12 | 河海大学 | Sludge soil chemical dehydration process and treatment system |
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