CN103979774A - Slurry dewatering and curing construction process - Google Patents
Slurry dewatering and curing construction process Download PDFInfo
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- CN103979774A CN103979774A CN201310302228.1A CN201310302228A CN103979774A CN 103979774 A CN103979774 A CN 103979774A CN 201310302228 A CN201310302228 A CN 201310302228A CN 103979774 A CN103979774 A CN 103979774A
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- flocculation agent
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- 239000002002 slurry Substances 0.000 title claims abstract description 136
- 238000010276 construction Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 353
- 238000005189 flocculation Methods 0.000 claims description 159
- 230000016615 flocculation Effects 0.000 claims description 159
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000002156 mixing Methods 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 19
- 239000013505 freshwater Substances 0.000 claims description 18
- 238000005516 engineering process Methods 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 9
- 239000003814 drug Substances 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 229920000715 Mucilage Polymers 0.000 abstract 7
- 239000000853 adhesive Substances 0.000 abstract 7
- 239000000701 coagulant Substances 0.000 abstract 7
- 239000007788 liquid Substances 0.000 description 10
- 239000002689 soil Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 239000011553 magnetic fluid Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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- Treatment Of Sludge (AREA)
Abstract
The invention provides a slurry dewatering and curing construction process. The process flow is as below: S10, installing the overall equipment in place, and preparing a coagulant mucilage and a dewatering agent; S11, calculating the addition amount of coagulant mucilage per minute by a control system according to the slurry flow and addition rate of the coagulant mucilage, controlling the rotating speed of a controllable screw pump in accordance with the addition amount of coagulant mucilage per minute, and adding the coagulant mucilage into the slurry; and S12, calculating the addition amount of the dewatering agent per minute by the control system according to the concentration and flow of slurry mixed with the coagulant mucilage, controlling the rotating speed of a controllable dosing pump according to the addition amount of the dewatering agent per minute, adding the dewatering agent into the slurry mixed with the coagulant mucilage, and flowing the slurry into a second pipeline mixer of a slurry dewatering and curing system for dewatering and curing treatment. The slurry dewatering and curing construction process provided by the invention can realize rapid dewatering and curing treatment of slurry, reduces the workload of construction, and shortens the construction period.
Description
Technical field
The application relates to environmental protection solid waste process field, relates in particular to a kind of slurry dewatering solidifying construction technology.
Background technology
Along with the fast development of China's Coastal Areas national economy, its life construction land demand increases suddenly, thereby cause enclosing and cultivating area, constantly expands, and the dredge fill in project of cultivation also increases day by day to the demand of sandy soil material.But Sandy Soil Resources is but day by day in short supply in dredge fill.Yet but there is a large amount of tidal land mud in outside, Wei district, is not only endangering the marine eco-environment, and is making project of cultivation have potential safety hazard.Simultaneously, in river course, waterway dredging engineering, dredging mud also can not get effective solution, the dredging mud of the overwhelming majority is to process by discarding in throwing district, land or low laying areas, or stockyard is set deposits, not only take the fishing pool and arable land, and the soil forming is because unusual weak being difficult to develops and utilizes.The Chinese patent of patent No. ZL200610040093.6 discloses a kind of constructional method of utilizing solidified earth from sludge.The method contains following steps: (1) first carries out processed to the mud digging out, and makes its water content approach liquid limit; (2) in the mud through dehydration, add cement and flyash again; (3) afterwards, stir 30-80 second, evenly mix, obtain curing silt soil; (4) in addition, curing silt soil is stacked to 2-3 days, when making it continue curing reaction, there is early strength, can machinery paving, its layering is paved at roadbed, dykes and dams or indentation on the ground and roll with mechanical layering.Be characterized in when adding cement and flyash, also add and have gypsum and super strength water absorbent.The disclosed method of this patent is too slow to the speed of sludge solidification, has increased construction working amount, has extended the construction period.
Summary of the invention
The invention provides and a kind ofly can carry out to mud the slurry dewatering solidifying construction technology of fast dewatering solidification treatment.
For achieving the above object, technical scheme of the present invention is:
A slurry dewatering solidifying construction technology, this technical process is:
Step S10, after integral device is in place, utilizes the configuration flocculation agent slurry agent of flocculation agent slurry agent configuration-system and utilizes dewatering agent medicine system configuration dewatering agent;
Step S11, Controlling System calculates the add-on of per minute flocculation agent slurry agent according to the data on flows of mud, add-on according to the agent of described per minute flocculation agent slurry is controlled after the rotating speed of controlled spiral pump, in mud, add the agent of flocculation agent slurry, mud and the agent of flocculation agent slurry flow in the first line mixer in slurry dewatering solidifying system and mix;
Step S12, Controlling System is according to being mixed with the concentration of mud of flocculation agent slurry agent and the addition that data on flows calculates per minute dewatering agent, according to the addition of described per minute dewatering agent, control after the rotating speed of controllable feeding pump, to being mixed with in the mud of flocculation agent slurry agent, add dewatering agent, dewatering agent and the mud that is mixed with the agent of flocculation agent slurry flow in the second pipe mixing tank in slurry dewatering solidifying system and carry out dehydrating and curing processing.
Further, in described step S10,
Utilize the agent of flocculation agent slurry agent configuration-system configuration flocculation agent slurry to be specially: flocculation agent screw conveying device is be transported to the opening for feed of the flocculation agent mix bucket flocculation agent whipping appts from flocculation agent storage device discharge port flocculation agent out, the first fresh water pump is transported to the clear water in clean water basin the water-in of the flocculation agent mix bucket in flocculation agent whipping appts by pipeline simultaneously, under the stirring action of vane-type agitator arm, after for some time, in flocculation agent mix bucket in flocculation agent whipping appts and coupled stirring conveying barrel, be all full of the agent of uniform flocculation agent slurry, the concentration of flocculation agent slurry agent can coordinate control by controlling the rotating speed of the first fresh water pump and flocculation agent screw conveying device,
Utilize dewatering agent medicine system configuration dewatering agent to be specially: to open manual dosing valve, the spiral that dewatering agent powder enters its below from funnel bin is trembled sieve, spiral is trembled sieve and can those block dewatering agent powders be broken into Powdered again, automatic control device is opened the second fresh water pump, screw automatic feeding device and vane-type agitator arm, screw automatic feeding device is sent into dewatering agent powder the opening for feed of the first casing of dewatering agent whipping appts, simultaneously, the second fresh water pump is also transported to the clear water in clean water basin by pipeline the water-in of the first casing, under the stirring action of vane-type agitator arm, after for some time, the first casing in dewatering agent whipping appts, in the second casing and the 3rd casing, be all full of uniform dewatering agent.
Further, the detailed process that described step S11 realizes is: start Qu Jiang district slush pump and PLC Controlling System, the mud stream that Cong Qujiang district obtains is crossed first flow meter, now first flow measures the data on flows of mud, the data reception module of PLC Controlling System receives this mud flow rate Data Concurrent and gives CPU module, CPU module calculates the add-on of per minute flocculation agent slurry agent according to these mud flow rate data, and the rotary speed data of controlled spiral pump corresponding to the add-on of this per minute flocculation agent slurry agent is sent to data outputting module, data outputting module is controlled the rotating speed of controlled spiral pump well according to this rotary speed data, the flocculation agent slurry agent configuring is from stirring the delivery port outflow of conveying barrel, by pipeline, flow in the first mixing tank together with mud, portion is fully mixed within it.
Further, the calculation formula of the add-on of described calculating per minute flocculation agent slurry agent is:
Q
flocculation agent=K * Q
1
Wherein, Q
flocculation agentfor the add-on of per minute flocculation agent slurry agent, the adding rate that K is flocculation agent, Q
1for first flow instrumentation mud flow rate data out.
Further, the span of the adding rate K of described flocculation agent is 8%-10%.
Further, the detailed process that described step S12 realizes is: the mud that is mixed with the agent of flocculation agent slurry flows out from the first mixing tank, flow through concentration detector and the second under meter, concentration and the data on flows of the mud that is mixed with the agent of flocculation agent slurry do not measured in now concentration detector and the score of the second flow, the data reception module of PLC Controlling System sends to CPU module after receiving the concentration of this mud that is mixed with the agent of flocculation agent slurry and data on flows, CPU module is mixed with the concentration of mud of flocculation agent slurry agent and the addition that data on flows calculates per minute dewatering agent according to this, and the rotary speed data of controllable feeding pump corresponding to the addition of this per minute dewatering agent is sent to data outputting module, data outputting module is controlled the rotating speed of controllable feeding pump well according to this rotary speed data, the dewatering agent configuring is from the delivery port outflow of the 3rd casing, by pipeline, flow in the second mixing tank together with being mixed with the mud of flocculation agent slurry agent.
Further, the calculation formula of the addition of described per minute dewatering agent is:
Q
dewatering agent=Q
2* (0.6W+0.6)
Wherein, Q
dewatering agentfor the addition of per minute dewatering agent, Q
2be the data on flows that the second flow measures the mud that is mixed with the agent of flocculation agent slurry coming, W is the concentration data of the concentration detector mud that is mixed with the agent of flocculation agent slurry of monitoring out.
The invention has the beneficial effects as follows: slurry dewatering solidifying construction technology provided by the invention, can calculate according to the flow speed data of mud the add-on of per minute flocculation agent slurry agent, and according to being mixed with the concentration data of mud of flocculation agent slurry agent and the addition that data on flows calculates minute dewatering agent, according to the add-on of this flocculation agent slurry agent, control the rotating speed of controlled spiral pump, and the rotating speed of controlling controllable feeding pump according to the addition of this dewatering agent, make to add the flocculation agent slurry agent in mud and add the dewatering agent in the mud that is mixed with the agent of flocculation agent slurry to be controlled in the scope meeting the demands, improved the mud-water separation rate of mud, accelerated the speed of slurry dewatering solidifying, thereby reduce construction working amount, shorten the construction period, reduce construction cost.
Accompanying drawing explanation
Fig. 1 is a kind of slurry dewatering solidifying constructing device structural representation of realizing slurry dewatering solidifying construction technology of the present invention;
Fig. 2 is the slurry dewatering solidifying construction flow chart of the embodiment of the present invention;
Fig. 3 is the structured flowchart of PLC Controlling System.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention and advantage are described in more detail.
As shown in Figure 1, for realizing a kind of slurry dewatering solidifying constructing device structural representation of slurry dewatering solidifying construction technology of the present invention, this device comprises: flocculation agent slurry agent configuration-system, dewatering agent medicine system, slurry dewatering solidifying system and Controlling System.Controlling System is electrically connected to flocculation agent slurry agent configuration-system, dewatering agent medicine system and slurry dewatering solidifying system respectively.
Flocculation agent slurry agent configuration-system comprises: flocculation agent storage device 1, flocculation agent screw conveying device 2, flocculation agent whipping appts and water intaking pond 7; The discharge port of flocculation agent storage device 1 is connected with the opening for feed of flocculation agent whipping appts by flocculation agent screw conveying device 2, and the water-in of flocculation agent whipping appts is connected with the water outlet pipeline of water intaking pond 7 one sides by the first fresh water pump 6.Wherein, flocculation agent whipping appts comprises: flocculation agent mix bucket 3, stirring conveying barrel 4 and vane-type agitator arm 21, between flocculation agent mix bucket 3 and stirring conveying barrel 4, adopt the mode of overflow to connect, be that flocculation agent agitation vat 3 and the napex that stirs conveying barrel 4 inside are communicated with, when the liquid level that stirs conveying barrel 4 is during lower than flocculation agent agitation vat 3, liquid meeting overflow in flocculation agent agitation vat 3, to stirring in conveying barrel 4, can be played the effect that supplements in time the agent of flocculation agent slurry; The inside that vane-type agitator arm 21 is arranged at respectively flocculation agent mix bucket 3 and stirs conveying barrel 4, is used for stirring the agent of the uniform flocculation agent slurry of formation; The discharge port of flocculation agent storage device 1 is connected with the input aperture of flocculation agent mix bucket 3 by flocculation agent e Foerderanlage 2, and the water-in of flocculation agent mix bucket 3 is connected with the water outlet pipeline of water intaking pond 7 one sides by the first fresh water pump 6; The delivery port that stirs conveying barrel 4 is connected with the input aperture pipeline of the first line mixer 17 by controlled spiral pump 5.
Dewatering agent medicine system comprises: dewatering agent storage device and dewatering agent whipping appts; The discharge port of dewatering agent storage device is connected with the opening for feed pipeline of dewatering agent whipping appts with screw automatic feeding device 24 by manual dosing valve 10, and the water-in of dewatering agent whipping appts is connected with the water outlet pipeline of water intaking pond 7 opposite sides by the second fresh water pump 8.Wherein, the spiral that dewatering agent storage device comprises funnel bin 9 and is positioned at its below is trembled sieve 27, and spiral is trembled sieve 27 can disperse dewatering agent pulvis, prevents that pulvis from entering casing and uniting and dissolve insufficiently, causes waste, dewatering agent whipping appts comprises: the first casing 11, the second casing 12, the 3rd casing 13, automatic control device 25, magnetic fluid level gauge 26 and vane-type agitator arm 22, automatic control device 25 is arranged on the outside of dehydration whipping appts, magnetic fluid level gauge 26 is arranged on the 3rd casing 13, the first casing 11, the second casing 12 all adopts the mode of overflow to be connected with the 3rd casing 13, the bottom of the first casing 11 and the second casing 12 inside is communicated with, the top of the second casing 12 and the 3rd casing 13 inside is communicated with, when the liquid level of the 3rd casing 13 is during lower than the liquid level of the second casing 12, the liquid of the second casing 12 will flow to the 3rd casing 13, due to the first casing 11 and the second casing 12 bottoms connections, therefore when the liquid of the second casing 12 reduces, the first casing 11 can be given the second casing 12 liquid make-up in time, vane-type agitator arm 22 is arranged at respectively the inside of the first casing 11, the second casing 12 and the 3rd casing 13, and automatic control device 25 is for controlling the opening and closing of the second fresh water pump 8, screw automatic feeding device 24 and vane-type agitator arm 22, the discharge port of dewatering agent storage device is connected with the opening for feed pipeline of the first casing 11 with screw automatic feeding device 24 by manual dosing valve 10, the water-in of the first casing 11 is connected with the water outlet pipeline of water intaking pond 7 opposite sides by the second fresh water pump 8, and the delivery port of the 3rd casing 13 is connected with the input aperture pipeline of second pipe mixing tank 20 by controllable feeding pump 14.Liquid level in dewatering agent whipping appts drops to and causes magnetic fluid level gauge 26 to send while reporting to the police, and by automatic control device 25, opens the second fresh water pump 8, screw automatic feeding device 24 and vane-type agitator arm 22, can complete in time the configuration of dewatering agent.
Slurry dewatering solidifying system comprises: connect successively Qu Jiang district slush pump 15, first flow meter 16, the first line mixer 17, concentration detector 18, the second under meter 19 and second pipe mixing tank 20; The input aperture of the first line mixer 17 is also connected with the delivery port pipeline of stirring conveying barrel 4 in flocculation agent whipping appts by controlled spiral pump 5, and the input aperture of second pipe mixing tank 20 is also connected with the delivery port pipeline of the 3rd casing 13 in dewatering agent whipping appts by controllable feeding pump 14.Wherein, second pipe mixing tank 20 also claims static line mixer, this second pipe mixing tank 20 is according to waterpower principle design, duct length is greater than 60 meters, and flow rate regime is set in this second pipe mixing tank 20 and changes element, mud is flowed through after this flow rate regime changes element in pipeline can change its flow rate regime, by telescopic movement, is changed and is realized mixing of dewatering agent and mud.
As shown in Figure 3, Controlling System 23 adopts PLC Controlling System, this Controlling System 23 is electrically connected to first flow meter 16, controlled spiral pump 5, concentration detector 18, the second under meter 19 and controllable feeding pump 14 respectively, and this PLC Controlling System comprises: CPU module 234, power module 232, data reception module 231 and data outputting module 233.Power module 232 is for providing electric power to PLC Controlling System; The mud flow rate data that data reception module 231 records for receiving first flow meter 16, and concentration and the data on flows of the mud that is mixed with the agent of flocculation agent slurry that records respectively of concentration detector 18 and the second under meter 19; CPU module 234 is calculated the add-on of per minute flocculation agent slurry agent for the mud flow rate data that record according to first flow meter 16, the concentration of the mud that is mixed with the agent of flocculation agent slurry recording respectively according to concentration detector 18 and the second under meter 19 and the addition that data on flows is calculated per minute dewatering agent; Data outputting module 233, for control the rotating speed of controlled spiral pump 5 according to the add-on of per minute flocculation agent slurry agent, is controlled the rotating speed of controllable feeding pump 14 according to the addition of per minute dewatering agent.The calculation formula of the add-on of per minute flocculation agent slurry agent is:
Q
flocculation agent=K * Q
1
Wherein, Q
flocculation agentfor the add-on of per minute flocculation agent slurry agent, K is the adding rate of flocculation agent slurry agent, and the span of K is 8%-10%, Q
1for first flow instrumentation mud flow rate data out.
The calculation formula of the addition of per minute dewatering agent is:
Q
dewatering agent=Q
2* (0.6W+0.6)
Wherein, Q
dewatering agentfor the addition of per minute dewatering agent, Q
2be the data on flows that the second flow measures the mud that is mixed with the agent of flocculation agent slurry coming, W is the concentration data of the concentration detector mud that is mixed with the agent of flocculation agent slurry of monitoring out.
In the present embodiment, the agent of flocculation agent slurry is mainly with cinder, gypsum is as material, be equipped with a certain proportion of hydraulic cementing materials simultaneously, alkali-activator, swelling agent and respective secondary auxiliary agent mix, this flocculation agent slurry agent and high-moisture percentage stir the initial stage, under the effect of retardant, do not react, after most of moisture after slurry dewatering is dehydrated, mud after this flocculation agent slurry agent and dehydration is realized and being solidified within the regular hour, make mud particle contact position produce crystallization or cementing, not only at mud particle phase interface, produce mortise, and can react with the active substance in mud particle generation gum material, both produced physical bond, more can produce Chemical bond, make the soil body produce high strength, there are good water stability and weather resistance.Dewatering agent is macromolecule cation polyacrylamide, and this dewatering agent utilizes chemi-ionization and condensation principle to realize mud-water separation, cuts off the hair suction pipe in mud particle, thereby realize solid and liquid separation by ionizing event.
As shown in Figure 2, be slurry dewatering solidifying construction flow chart provided by the invention, this technical process comprises the steps:
Step S10, after integral device is in place, utilizes the configuration flocculation agent slurry agent of flocculation agent slurry agent configuration-system and utilizes dewatering agent medicine system configuration dewatering agent.
Concrete, the layoutprocedure of flocculation agent slurry agent is: flocculation agent screw conveying device 2 is be transported to the opening for feed of the flocculation agent mix bucket 3 flocculation agent whipping appts from flocculation agent storage device 1 discharge port flocculation agent out, the first fresh water pump 6 is transported to the clear water in clean water basin 7 water-in of the flocculation agent mix bucket 3 in flocculation agent whipping appts by pipeline simultaneously, under the stirring action of vane-type agitator arm 21, after for some time, in flocculation agent mix bucket 3 in flocculation agent whipping appts and coupled stirring conveying barrel 4, be all full of the agent of uniform flocculation agent slurry, the concentration of flocculation agent slurry agent can coordinate control by controlling the rotating speed of the first fresh water pump 6 and flocculation agent screw conveying device 2.
The layoutprocedure of dewatering agent is: open manual dosing valve 10, the spiral that dewatering agent powder enters its below from funnel bin 9 is trembled sieve 27, spiral is trembled sieve 27 and can those block dewatering agent powders be broken into Powdered again, automatic control device 25 is opened the second fresh water pump 8, screw automatic feeding device 24 and vane-type agitator arm 22, screw automatic feeding device 24 is sent into dewatering agent powder the opening for feed of the first casing 11 of dewatering agent whipping appts, simultaneously, the second fresh water pump 8 is also transported to the clear water in clean water basin 7 by pipeline the water-in of the first casing 11, under the stirring action of vane-type agitator arm 22, after for some time, the first casing 11 in dewatering agent whipping appts, in the second casing 12 and the 3rd casing 13, be all full of uniform dewatering agent, the concentration span of dewatering agent is 1 ‰-3 ‰.
Step S11, Controlling System calculates the add-on of per minute flocculation agent slurry agent according to the flow of mud and flocculation agent slurry agent adding rate, add-on according to the agent of described per minute flocculation agent slurry is controlled after the rotating speed of controlled spiral pump, in mud, add the agent of flocculation agent slurry, mud and flocculation agent flow in the first line mixer in slurry dewatering solidifying system and mix.
Concrete, start Qu Jiang district slush pump 15 and PLC Controlling System 23, the mud stream that Cong Qujiang district obtains is crossed first flow meter 16, now first flow meter 16 is measured the data on flows of mud, the data reception module 231 of PLC Controlling System 23 receives this mud flow rate Data Concurrent and gives CPU module 234, CPU module 234 calculates the add-on of per minute flocculation agent slurry agent according to these mud flow rate data, and the rotary speed data of controlled spiral pump 5 corresponding to the add-on of this per minute flocculation agent slurry agent is sent to data outputting module 233, data outputting module 233 is controlled the rotating speed of controlled spiral pump 5 well according to this rotary speed data, the flocculation agent slurry agent configuring is from stirring the delivery port outflow of conveying barrel 4, by pipeline, flow into together with mud in the first mixing tank 17, portion is fully mixed within it.The calculation formula of calculating the add-on of per minute flocculation agent slurry agent is:
Q
flocculation agent=K * Q
1
Wherein, Q
flocculation agentfor the add-on of per minute flocculation agent slurry agent, K is adding rate, and the span of K is 8%-10%, Q
1for first flow instrumentation mud flow rate out.
Step S12, Controlling System is according to being mixed with the concentration of mud of flocculation agent slurry agent and the addition that data on flows calculates per minute dewatering agent, according to the addition of described per minute dewatering agent, control after the rotating speed of controllable feeding pump, to being mixed with in the mud of flocculation agent slurry agent, add dewatering agent, dewatering agent and the mud that is mixed with the agent of flocculation agent slurry flow in the second pipe mixing tank in slurry dewatering solidifying system and carry out dehydrating and curing processing.
Concrete, the mud that is mixed with the agent of flocculation agent slurry flows out from the first mixing tank 17, flow through concentration detector 18 and the second under meter 19, now concentration detector 18 and the second under meter 19 are measured respectively concentration and the data on flows of the mud that is mixed with the agent of flocculation agent slurry, the data reception module 231 of PLC Controlling System 23 sends to CPU module 234 after receiving the concentration of this mud that is mixed with the agent of flocculation agent slurry and data on flows, CPU module 234 is mixed with the concentration of mud of flocculation agent slurry agent and the addition that data on flows calculates per minute dewatering agent according to this, and the rotary speed data of controllable feeding pump 14 corresponding to the addition of this per minute dewatering agent is sent to data outputting module 233, data outputting module 233 is controlled the rotating speed of controllable feeding pump 14 well according to this rotary speed data, the dewatering agent configuring is from the delivery port outflow of the 3rd casing 13, by pipeline, flow in the second mixing tank 20 together with being mixed with the mud of flocculation agent slurry agent.The calculation formula of calculating the addition of per minute dewatering agent is:
Q
dewatering agent=Q
2* (0.6W+0.6)
Wherein, Q
dewatering agentfor the addition of per minute dewatering agent, Q
2be the flow that the second flow measures the mud after the mixing flocculation agent that comes, W is the concentration of the mud of the concentration detector mixing flocculation agent slurry agent of monitoring out.Dewatering agent enters in the second mixing tank 20 with the mud that is mixed with the agent of flocculation agent slurry, the second mixing tank 20 is magnanimous is greater than 60 meters, this second mixing tank 20 also claims static line mixer, this mixing tank designs according to hydraulic principle, mud is flowed through after flow rate regime changes element and is changed its flow rate regime in pipeline, by telescopic movement, change the even mixing that realizes dewatering agent and mud, under the effect of dewatering agent, mud sends chemical reaction, realizes the mud-water separation of mud in static line mixer after fully reacting in its outlet.
In sum, slurry dewatering solidifying construction technology provided by the invention can realize the effect of muddy water sharp separation, can solve the earthwork demand of project of cultivation Zhong Wei district hydraulic reclamation, reduced construction working amount, shortened the construction period, reduced construction investment, not only having realized resource turns waste into wealth, and has protected the marine eco-environment; Meanwhile, also may be used on solving dredging mud in river course, waterway dredging engineering and process difficult problem.
The foregoing is only preferred embodiment of the present invention, is only illustrative for invention, and nonrestrictive.Those skilled in the art is understood, and in the spirit and scope that limit, can carry out many changes to it in invention claim, revise, and even equivalence, but all will fall within the scope of protection of the present invention.
Claims (7)
1. a slurry dewatering solidifying construction technology, is characterized in that, this technical process is:
Step S10, after integral device is in place, utilizes the configuration flocculation agent slurry agent of flocculation agent slurry agent configuration-system and utilizes dewatering agent medicine system configuration dewatering agent;
Step S11, Controlling System calculates the add-on of per minute flocculation agent slurry agent according to the data on flows of mud, add-on according to the agent of described per minute flocculation agent slurry is controlled after the rotating speed of controlled spiral pump, in mud, add the agent of flocculation agent slurry, mud and the agent of flocculation agent slurry flow in the first line mixer in slurry dewatering solidifying system and mix;
Step S12, Controlling System is according to being mixed with the concentration of mud of flocculation agent slurry agent and the addition that data on flows calculates per minute dewatering agent, according to the addition of described per minute dewatering agent, control after the rotating speed of controllable feeding pump, to being mixed with in the mud of flocculation agent slurry agent, add dewatering agent, dewatering agent and the mud that is mixed with the agent of flocculation agent slurry flow in the second pipe mixing tank in slurry dewatering solidifying system and carry out dehydrating and curing processing.
2. slurry dewatering solidifying construction technology as claimed in claim 1, is characterized in that, in described step S10,
Utilize the agent of flocculation agent slurry agent configuration-system configuration flocculation agent slurry to be specially: flocculation agent screw conveying device is be transported to the opening for feed of the flocculation agent mix bucket flocculation agent whipping appts from flocculation agent storage device discharge port flocculation agent out, the first fresh water pump is transported to the clear water in clean water basin the water-in of the flocculation agent mix bucket in flocculation agent whipping appts by pipeline simultaneously, under the stirring action of vane-type agitator arm, after for some time, in flocculation agent mix bucket in flocculation agent whipping appts and coupled stirring conveying barrel, be all full of the agent of uniform flocculation agent slurry, the concentration of flocculation agent slurry agent can coordinate control by controlling the rotating speed of the first fresh water pump and flocculation agent screw conveying device,
Utilize dewatering agent medicine system configuration dewatering agent to be specially: to open manual dosing valve, the spiral that dewatering agent powder enters its below from funnel bin is trembled sieve, spiral is trembled sieve and can those block dewatering agent powders be broken into Powdered again, automatic control device is opened the second fresh water pump, screw automatic feeding device and vane-type agitator arm, screw automatic feeding device is sent into dewatering agent powder the opening for feed of the first casing of dewatering agent whipping appts, simultaneously, the second fresh water pump is also transported to the clear water in clean water basin by pipeline the water-in of the first casing, under the stirring action of vane-type agitator arm, after for some time, the first casing in dewatering agent whipping appts, in the second casing and the 3rd casing, be all full of uniform dewatering agent.
3. slurry dewatering solidifying construction technology as claimed in claim 1, it is characterized in that, the detailed process that described step S11 realizes is: start Qu Jiang district slush pump and PLC Controlling System, the mud stream that Cong Qujiang district obtains is crossed first flow meter, now first flow measures the data on flows of mud, the data reception module of PLC Controlling System receives this mud flow rate Data Concurrent and gives CPU module, CPU module calculates the add-on of per minute flocculation agent slurry agent according to these mud flow rate data, and the rotary speed data of controlled spiral pump corresponding to the add-on of this per minute flocculation agent slurry agent is sent to data outputting module, data outputting module is controlled the rotating speed of controlled spiral pump well according to this rotary speed data, the flocculation agent slurry agent configuring is from stirring the delivery port outflow of conveying barrel, by pipeline, flow in the first mixing tank together with mud, portion is fully mixed within it.
4. slurry dewatering solidifying construction technology as claimed in claim 3, is characterized in that, the calculation formula of the add-on of described calculating per minute flocculation agent slurry agent is:
Q
flocculation agent=K * Q
1
Wherein, Q
flocculation agentfor the add-on of per minute flocculation agent slurry agent, the adding rate that K is flocculation agent, Q
1for first flow instrumentation mud flow rate data out.
5. slurry dewatering solidifying construction technology as claimed in claim 4, is characterized in that, the span of the adding rate K of described flocculation agent is 8%-10%.
6. slurry dewatering solidifying construction technology as claimed in claim 1, it is characterized in that, the detailed process that described step S12 realizes is: the mud that is mixed with the agent of flocculation agent slurry flows out from the first mixing tank, flow through concentration detector and the second under meter, concentration and the data on flows of the mud that is mixed with the agent of flocculation agent slurry do not measured in now concentration detector and the score of the second flow, the data reception module of PLC Controlling System sends to CPU module after receiving the concentration of this mud that is mixed with the agent of flocculation agent slurry and data on flows, CPU module is mixed with the concentration of mud of flocculation agent slurry agent and the addition that data on flows calculates per minute dewatering agent according to this, and the rotary speed data of controllable feeding pump corresponding to the addition of this per minute dewatering agent is sent to data outputting module, data outputting module is controlled the rotating speed of controllable feeding pump well according to this rotary speed data, the dewatering agent configuring is from the delivery port outflow of the 3rd casing, by pipeline, flow in the second mixing tank together with being mixed with the mud of flocculation agent slurry agent.
7. slurry dewatering solidifying construction technology as claimed in claim 6, is characterized in that, the calculation formula of the addition of described per minute dewatering agent is:
Q
dewatering agent=Q
2* (0.6W+0.6)
Wherein, Q
dewatering agentfor the addition of per minute dewatering agent, Q
2be the data on flows that the second flow measures the mud that is mixed with the agent of flocculation agent slurry coming, W is the concentration data of the concentration detector mud that is mixed with the agent of flocculation agent slurry of monitoring out.
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| CN107953450A (en) * | 2017-11-30 | 2018-04-24 | 中南大学 | A kind of denseness regulating device of shield machine discarded slurry |
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| CN112851075A (en) * | 2021-01-19 | 2021-05-28 | 中建八局西南建设工程有限公司 | Automatic dosing method of plate-and-frame filter press for sludge dewatering and solidification |
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| CN103979774B (en) | 2016-09-28 |
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