CN103979777A - Rapid dewatering and curing method for sludge - Google Patents
Rapid dewatering and curing method for sludge Download PDFInfo
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- CN103979777A CN103979777A CN201310302394.1A CN201310302394A CN103979777A CN 103979777 A CN103979777 A CN 103979777A CN 201310302394 A CN201310302394 A CN 201310302394A CN 103979777 A CN103979777 A CN 103979777A
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- mud
- flocculation agent
- dewatering agent
- mixing device
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- 239000010802 sludge Substances 0.000 title claims abstract description 33
- 238000001723 curing Methods 0.000 title abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 175
- 238000002156 mixing Methods 0.000 claims abstract description 69
- 238000003756 stirring Methods 0.000 claims abstract description 35
- 239000002002 slurry Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 238000005189 flocculation Methods 0.000 claims description 84
- 230000016615 flocculation Effects 0.000 claims description 84
- 239000003814 drug Substances 0.000 claims description 42
- 239000000203 mixture Substances 0.000 claims description 36
- 230000018044 dehydration Effects 0.000 claims description 27
- 238000006297 dehydration reaction Methods 0.000 claims description 27
- 238000011068 loading method Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 229940079593 drug Drugs 0.000 claims description 8
- 239000013505 freshwater Substances 0.000 claims description 8
- 206010044565 Tremor Diseases 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 7
- 230000004907 flux Effects 0.000 claims description 6
- 239000011553 magnetic fluid Substances 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 2
- 239000000701 coagulant Substances 0.000 abstract 7
- 238000012545 processing Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention relates to a rapid dewatering and curing method for sludge. The method is as below: slurry sucked by a slurry pump is output to a pipeline, has flow rate measured, and flows into a coagulant mixing device, and the measurement results are sent to a control device; the control device, according to the preset coagulant addition rate, determines the rotation speed of a screw conveying unit of the coagulant mixing device, and adds the coagulant to the coagulant mixing device according to the speed of the rotation speed; a second flow measuring element and a concentration measuring element measure the flow rate and concentration of slurry in the pipeline; the control device based on the measured flow rate and concentration data adds the coagulant and clean water into a three-box overflow type stirring box for stirring according to preset dewatering agent concentration; and the dewatering agent mixing device is output according to the preset dewatering agent addition amount, and mixed with slurry in the mixing device on the pipeline. According to the invention, the sludge is treated with coagulant and dewatering agent, so as to output to slurry met the requirements.
Description
Technical field
The present invention relates to a kind of sludge dewatering and solidifying method, relate in particular to a kind of fast dewatering curing that adds flocculation agent and dewatering agent.
Background technology
Existing dewatering system can be realized sludge dewatering and solidifying processing, in the mud gathering, adds a certain amount of solidifying agent, a kind of construction technology of blowing filling sludge ground-making and device thereof, and device comprises the paving system B of solidification treatment system A and improvement mud.This A comprises: the device such as pump is taken out, foreign material sieve removes, solidifying agent bin stock, solidifying agent conveying, compressed air delivery and the conveying of mixing mud mix.This B comprises: connect pipeline section, flexible pipe or rotary conveyor and carrying and running gear.Its construction process is: 1. by mud mud hydraulic reclamation to hydraulic reclamation region or settling tank, form the accumulation horizon of dense thick mud mud through precipitation; 2. extract dense thick mud mud with pump picking device, simultaneously to dense thick mud slurry transportation solidifying agent, before pump or after pump, in pipeline, dense thick mud mud and solidifying agent are mixed to form to mixing mud; 3. mixing mud is delivered in mix e Foerderanlage, forms improvement mud; 4. will improve mud output, be delivered to paving system B by connecting pipeline section; 5. paving system B will improve mud and lay to appointed thickness.
Adding of medicament in this patent fails to realize accurately control in real time, and the medicament adding and work output are difficult to control in real time and adjust.
In view of above-mentioned defect, creator of the present invention has obtained this creation finally through long research and practice.
Summary of the invention
The object of the present invention is to provide a kind of rapid dehydration of sludge curing, in order to overcome above-mentioned technological deficiency.
For achieving the above object, the invention provides a kind of rapid dehydration of sludge curing, this process is that this process is:
Step a, gets slurry slush pump and exports the mud of absorption to pipeline, after first flow measuring sensor, flows into flocculation agent mixing device, and described the first measuring sensor imports institute's measurement of discharge data into a control device;
Step b, described control device, according to the flocculation agent adding rate setting in advance, is determined the rotating speed of the screw rod transmission unit in described flocculation agent mixing device, and according to this rotating speed, flocculation agent is added to described flocculation agent mixing device;
Step c, described flocculation agent and ducted mud are carried out mix and blend by described flocculation agent mixing device, after its two agitation vats that connect by twin-tub overflow mode mix mud, transfers to described pipeline;
Steps d, mud flow rate and concentration in the second flow measuring element on described pipeline and measurement of concetration element measuring channel, and this flow and concentration data are transferred to described control device;
Step e, described control device determines that according to default dewatering agent concentration the dewatering agent of dewatering agent mixing device adds rotating speed and a fresh water pump rotating speed of the spiral pump of unit according to the flow and the concentration data that record, and according to above-mentioned rotating speed, dewatering agent and clear water is added in the agitator tank of one or three casees overflow types and stir;
Step f, described dewatering agent mixing device is according to the output of default dewatering agent addition, and in line mixer on pipeline and mud stirring, and the slurries of fully realizing mud at pipe outlet after reaction separate.
Preferably, in above-mentioned steps b, the following add-on of determining per minute flocculation agent according to formula of described control device,
Q
solidifying=Q
1× α
Wherein, Q
solidifyingrepresent the add-on of per minute flocculation agent, Q
1the flux values that represents the mud per minute that described first flow instrumentation obtains, α represents the adding rate of default flocculation agent; The adding rate α of flocculation agent is preset as 8%～10%.
Preferably, in above-mentioned steps e, described control device calculates the add-on of per minute dewatering agent according to the following equation,
Q
de-=Q
2× n
In formula, Q
de-represent the add-on of per minute dewatering agent, Q
2the flux values that represents the mud per minute that described the second flow measurement obtains, n represents the default concentration of hydraulic mixture of control device in described dewatering agent mixing device;
Wherein, default concentration of hydraulic mixture n calculates according to following formula,
n＝0.6×β+0.6
In formula, β represents the ducted concentration of hydraulic mixture that described densitometer records.
Preferably, in above-mentioned steps e, dewatering agent is mixed the course of action of device and is,
Step e1, opens manual dosing valve, and agitator motor drives loading hopper to stir, and after a spiral is trembled sieve, enters in drug feeding pipeline;
Step e2, spiral pump enters the medicament in drug feeding pipeline in described three casees overflow type agitator tanks according to preset rotation speed, and described fresh water pump enters clear water in described three casees overflow type agitator tanks by preset rotation speed;
Step e3, the stirring drive-motor on described three casees overflow type agitator tanks drives an agitator arm to rotate;
Step e4, the dewatering agent in described three casees overflow type agitator tanks flows out from described outlet by overflow mode;
Step e5, the dosing pump on described pipeline enters dewatering agent in pipeline according to the discharge capacity of predetermined amount.
Preferably, described flocculation agent mixing device comprises that the flocculation agent mix bucket and that overflow connects stirs conveying barrel, wherein,
In described flocculation agent mix bucket, be provided with a mud import and a flocculation agent import; Described stirring conveying barrel is provided with a mud outlet, is provided with one second slush pump on the pipeline of this exit end;
Two barrels of upper ends communicate, and mud can unrestricted flow; And be respectively arranged with a rotation pump two barrels of upper ends, on rotation pump shaft, be provided with at least one impeller alternately.
Preferably, the agitator tank of described three casees overflow types comprises a medicament blending bin, an agitator tank, a medicament delivery casing, wherein, in described medicament blending bin, is provided with a water-in, and described medicament delivery casing lower end is also provided with an outlet;
Described medicament blending bin and agitator tank communicate in lower end, and agitator tank and medicament delivery casing communicate in upper end, and it all realizes the automatic flowing of medicament by the mode of overflow.
Preferably, on described medicament delivery casing, be also provided with a magnetic fluid level gauge, in the time that the liquid level in casing drops to default liquid level, described magnetic fluid level gauge meeting alarm, described control device receives after this information, add unit and dewatering agent to add unit action according to clear water described in the dewatering agent add-on control of real-time setting, the mix that completes pulvis solution supplements.
Preferably, described screw rod transmission unit comprises a flocculation agent case, a drive-motor and a screw rod, wherein, described flocculation agent case is placed with flocculation agent, described drive-motor is subject to described control device control, and described screw rod is carried flocculation agent according to default flow under the driving of described drive-motor in described twin-tub overflow unit.
Preferably, described dewatering agent mixing device also comprises a loading hopper, and it is arranged on described spiral and trembles sieve upper end; Described manual dosing valve is arranged on described spiral and trembles sieve lower end, and in described spiral pump upper end.
Preferably, the each casing upper end in described three casees overflow type agitator tanks is provided with described stirring drive-motor, and described agitator arm is set on the output shaft of described drive-motor, is provided with at least one agitating vane alternately on it.
Beneficial effect of the present invention is compared with the prior art: rapid dehydration of sludge curing of the present invention successively adds flocculation agent processing and adds dewatering agent processing mud, before each treating processes, all to measure the flow of mud, mud flow rate and concentration information are transferred to a control device, described control device is according to real-time mud flow rate and concentration information, add-on to flocculation agent and dewatering agent is determined, ensure that flocculation agent and dewatering agent stir according to default amount and mud, export satisfactory mud; The control process of whole pipeline and device thereof is controlled by a control device unification, ensure whole dehydrating and curing process carry out in order operate with streamlined; Flocculation agent mixing device in the present invention and casing or bucket that dewatering agent mixing device all adopts overflow mode to be connected, ensure that slurries can stir, storage and continuous wave output.
Brief description of the drawings
Fig. 1 is the one-piece construction schematic diagram of rapid dehydration of sludge cure system of the present invention;
Fig. 2 be rapid dehydration of sludge cure system of the present invention flocculation agent mixing device face structural representation;
Fig. 3 is the structural representation that the dewatering agent of rapid dehydration of sludge cure system of the present invention adds unit;
Fig. 4 is the structural representation of the dewatering agent agitating unit of rapid dehydration of sludge cure system of the present invention;
Fig. 5 is the schema of rapid dehydration of sludge curing of the present invention;
Fig. 6 is the schema of the course of action of the dewatering agent mixing device of rapid dehydration of sludge curing of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical characterictic and the advantage with other above-mentioned to the present invention are described in more detail.
Rapid dehydration of sludge cure system in the present invention gathers after original mud, successively adds solidifying agent and the dewatering agent of predetermined amount in a continuous pipeline, and output after mixing, and whole dehydrating and curing process realizes continuously.
Refer to shown in Fig. 1, its one-piece construction schematic diagram that is rapid dehydration of sludge cure system of the present invention, this system comprises gets slurry slush pump 1, one flocculation agent mixing device 3, one dewatering agent mixing device 6, one control device and a pipeline 5, wherein, the described slurry slush pump 1 of getting, be used for extracting natural mud, the flow of described the first slush pump 1 is determined according to the performance of integral device, it inputs in described pipeline 5 after extracting natural mud, in the present invention, mud is by described pipeline 5 and mud is carried out to mix therein, the diameter of described pipeline 5 is determined according to output demand and the supporting capacity of equipment.
The described slurry slush pump 1 of getting extracts after natural mud, mud is transferred in described pipeline 5, after described first flow meter 51, enter described flocculation agent mixing device 3, described first flow meter 51 is measured and this flow information is transferred to described control device entering the mud flow rate of described flocculation agent mixing device 3, described under meter 51 is arranged on before the entrance of described flocculation agent mixing device 3, and in the time that described mud flows into described flocculation agent mixing device 3, described control device can be according to the corresponding rotating speed of the screw rod transmission unit 4 in the add-on of the good flocculation agent of this flow set and flocculation agent mixing device 3, therefore the duct length between described first flow meter 51 and flocculation agent mixing device 3 is determined according to the flow velocity of this mud.
Refer to shown in Fig. 2, what it was the flocculation agent mixing device of rapid dehydration of sludge cure system of the present invention faces structural representation, in the present invention, this flocculation agent mixing device comprises a screw rod transmission unit 4, one twin-tub overflow unit and one second slush pump 52, wherein, described screw rod transmission unit 4 comprises a flocculation agent case 42, one drive-motor 43 and a screw rod 41, in the present embodiment, described flocculation agent case 42 is placed with flocculation agent, described drive-motor 43 is controlled by described control device 4, described screw rod 41 is carried flocculation agent according to default flow under the driving of described drive-motor 43 in described twin-tub overflow unit.
Described twin-tub overflow unit comprises two agitation vats, be respectively a flocculation agent mix bucket 31 and and stir conveying barrel 32, described flocculation agent mix bucket 31, it receives from an import mud flowing into described pipeline 5, from the flocculation agent of another import input preset flow rate, under the turning effort of some impellers, the mud of mixing and flocculation agent to be stirred therein, described impeller being arranged on alternately rotated on pump shaft, driven by a rotation pump, described rotation pump is separately positioned on the upper end of described two barrels.Described stirring conveying barrel 32 adopts overflow mode to be connected with described flocculation agent mix bucket 31, two barrels of upper ends communicate, mud liquid can unrestricted flow, when the liquid level of described stirring conveying barrel 32 is during lower than the liquid level of described flocculation agent mix bucket 31, slurries in described flocculation agent mix bucket 31 will automatic overflow to described stirring conveying barrel 32, ensure that described stirring conveying barrel 32 can continue output.
Adopt the mode of overflow to connect two agitation vats, not only increased the mix and blend time of mud and flocculation agent, make the more even of slurries mixing, and, the automatic control of slurries can be ensured.
Described stirring conveying barrel 32 transfers to the slurries that stir in described pipeline 5, is provided with described the second slush pump 52 on the pipeline 5 in this outlet, and the flow of its output mud is determined according to the predetermined amount of described control device.
In above-mentioned flocculation agent mixing device 3, the flow of mud and flocculation agent is driven and the equipment controlled is all subject to described control device control.
In the present invention, described control device is integrated in a PLC housing 8, and described control device comprises a processing unit, a detecting unit and a motor unit, and wherein, described processing unit is a treater, and it can be a PLC treater; In described flocculation agent mixing device 3, the add-on of flocculation agent and work output are by described control device control.In the present embodiment, the adding rate α of flocculation agent is preset as 8%～10%, and this value is determined according to the requirement of bearing capacity of foundation soil; The processing unit of described control device is determined the add-on of per minute flocculation agent according to formula (1),
Q
solidifying=Q
1× α (1)
Wherein, Q
solidifyingrepresent the add-on of per minute flocculation agent, Q
1the flux values that represents the mud per minute that described first flow instrumentation obtains, α represents the adding rate of default flocculation agent.
Described processing unit is set the rotating speed of drive-motor and the rotating speed of described the second slush pump 52 of described screw rod transmission unit 4 according to the add-on of the flocculation agent calculating.
After described mud and flocculation agent mix, flow to pipeline 55 from described the second slush pump 51, be provided with a densitometer 53 in the outlet of described flocculation agent mixing device 3, its measurement enters the concentration of the mud before described dewatering agent mixing device 6; This segment pipe 5 is also provided with one second under meter 54, in order to measure the flow that enters the mud before described dewatering agent mixing device 6; Described densitometer 53 and the second under meter 54 be the processing unit to described control device by the mud information transmission gathering, and the unit of described processing calculates the add-on of per minute dewatering agent according to formula (2) according to this concentration and flow information,
Q
de-=Q
2× n (2)
In formula, Q
de-represent the add-on of per minute dewatering agent, Q
2the flux values that represents the mud per minute that described the second flow measurement obtains, n represents the concentration that adds of the default dewatering agent of institute's control device;
Wherein, the concentration n that adds of described default dewatering agent calculates according to following formula (3),
n＝0.6×β+0.6 (3)
In formula, β represents the ducted concentration of hydraulic mixture that described densitometer records.
Described dewatering agent mixing device 6 stirs dewatering agent according to the dewatering agent add-on that this arranges in real time.Please continue in conjunction with shown in Fig. 1, dewatering agent mixing device 6 of the present invention comprises that a clear water supply unit, a dewatering agent add unit 67 and a dewatering agent agitating unit, in the present embodiment, described clear water supply unit comprises a water intaking pond 66, and its mix that is dewatering agent provides clear water; Also comprise a fresh water pump 65, it sucks the clear water in described water intaking pond 66 in described dewatering agent mix unit, and the rotating speed of described fresh water pump 65 and discharge capacity are set according to the calculating of described control device.
Refer to shown in Fig. 3, its dewatering agent that is rapid dehydration of sludge cure system of the present invention adds the structural representation of unit, described dewatering agent adds unit to comprise a loading hopper 641, one spiral is trembled sieve 646, one agitator motor 644, one manual dosing valve 64, one spiral pump 642, one drug feeding pipeline 643 and a screw drive motor 645, dewatering agent in the present invention is pulvis, wherein, in described loading hopper 641, be contained with the dewatering agent of powdery, it is arranged on described spiral and trembles sieve 646 upper ends, described agitator motor 644 drives loading hopper 641 to stir, dewatering agent in loading hopper is stirred, described spiral pump 642 is under the driving of screw drive motor 645, and the rotating speed arranging in real time according to described control device adds dewatering agent in described drug feeding pipeline 643, and enters in described dewatering agent agitating unit, described manual dosing valve 64 is arranged on described spiral and trembles sieve lower end 646, and in described spiral pump 642 upper ends, manually control the dewatering agent output of described loading hopper 641 according to the rotating speed of the spiral pump 642 of real-time setting, only need to meet to continue supply, the pulvis amount of guarantee discharge port is consistent with actual institute expense, powder stream is trembled sieve through described spiral and 646 is entered in the casing of described dewatering agent agitating unit, trembles sieve energy dispersion powder, prevents that pulvis from entering casing and uniting and dissolve insufficiently, causes waste.
Refer to shown in Fig. 4, the structural representation of its dewatering agent agitating unit that is rapid dehydration of sludge cure system of the present invention, in the present embodiment, the agitator tank that described dewatering agent agitating unit is one or three casees overflow types, adopts overflow mode to connect in turn between three casees; It comprises a medicament blending bin 61, an agitator tank 62 and a medicament delivery casing 63; In described medicament blending bin 61, be provided with a water-in, in order to add clear water, on it, be also provided with described loading hopper 641 and spiral pump 642, after pulvis adds described medicament blending bin 61 interior, meet water and start to dissolve, and start mix under the driving of drive-motor.
In the present embodiment, in each casing, be provided with a whipping appts, it is a stirring drive-motor 671, an agitator arm 674 and an agitating vane 675, described stirring drive-motor 671, be arranged on the upper end of each casing, its rotating speed is set by the preset rotation speed of the mixing control unit 677 of control device control described in one, ensures that the dewatering agent in casing can flow into adjacent casing smoothly; Described agitator arm 674 is set on the output shaft of described stirring drive-motor 671, on it, is provided with at least one agitating vane 675 alternately; Described medicament blending bin 61 and agitator tank 62 communicate in lower end, and agitator tank 62 and medicament delivery casing 63 communicate in upper end, and it all realizes the automatic flowing of medicament by the mode of overflow; Also be provided with an outlet 676 in the lower end of described medicament delivery casing 63, the medicament stirring in order to output.
On described medicament delivery casing 63, be also provided with a magnetic fluid level gauge 673, in the time that the liquid level in casing drops to default liquid level, described magnetic fluid level gauge 673 meeting alarms, described control device receives after this information, add unit and dewatering agent to add unit action according to clear water described in the dewatering agent add-on control of real-time setting, the mix that completes pulvis solution supplements.
Described three casings, its Chinese medicine blending bin 61, in order to complete the preliminarily solubilised that adds pulvis, described agitator tank 62, in order to complete the storage of medicament and fully to dissolve, described medicament delivery casing 63, in order to complete the output of pulvis solution; The use of three casees overflow whipping apptss, both can ensure that pulvis fully dissolved, and can store again solvent, realize solvent continuously, not interrupted output use.
After described dewatering agent mix completes, enter in described pipeline 5 through a dosing pump 55, the rotating speed of described dosing pump 55 and discharge capacity are set in real time by described control device.
The dewatering agent of predetermined amount mixes in described pipeline 5 with the mud of respective concentration, in described pipeline 5, be also provided with a line mixer 15, mud reacts under the effect of dewatering agent in described line mixer 15, and in the present embodiment, the length of reacting pipe is greater than 60m; Described line mixer 15 is a static line mixer, it designs according to hydraulic principle, mud is flowed through after particular element and is changed its flow rate regime in pipeline 5, change and realize chemical agent with the equal of mud and mix by telescopic movement, and realize the slurries separation of mud at the pipe outlet of described line mixer 15.
Refer to shown in Fig. 5, it is schema of rapid dehydration of sludge curing of the present invention, and this process is,
Step a1, described in get slurry slush pump 1 and export the mud of absorption to pipeline 5, after first flow meter 51, flow into flocculation agent mixing device 3, described first flow meter 51 imports institute's measurement of discharge data into a control device;
Step a2, described control device, according to the flocculation agent adding rate setting in advance, is determined the rotating speed of the screw rod transmission unit 4 in described flocculation agent mixing device 3, and according to this rotating speed, flocculation agent is added to described flocculation agent mixing device 3;
Step a3, the mud in described flocculation agent and pipeline 2 is carried out mix and blend by described flocculation agent mixing device 3, after its two agitation vats that connect by twin-tub overflow mode mix mud, transfers to described pipeline 2;
Step a4, mud flow rate and concentration in the second under meter 54 on described pipeline 2 and densitometer 53 measuring channels 2, and this flow and concentration data are transferred to described control device;
Step a5, described control device determines that according to default dewatering agent concentration the dewatering agent of dewatering agent mixing device 6 adds rotating speed and fresh water pump 65 rotating speeds of the spiral pump 642 of unit according to the flow and the concentration data that record, and according to above-mentioned rotating speed, dewatering agent and clear water is added in the agitator tank of one or three casees overflow types and stir;
Step a6, described dewatering agent mixing device 6 is according to the output of default dewatering agent addition, and in line mixer 15 on pipeline 2 and mud stirring, fully after reaction, realizes the slurries separation of mud at pipe outlet.
Refer to shown in Fig. 6, the schema of its course of action that is the dewatering agent mixing device of rapid dehydration of sludge curing of the present invention, this process is,
Step a51, opens manual dosing valve 64, and agitator motor 644 drives loading hopper 641 to stir, and after a spiral is trembled sieve 646, enters in drug feeding pipeline 643;
Step a52, spiral pump 642 enters the medicament in drug feeding pipeline 643 in described three casees overflow type agitator tanks according to preset rotation speed, and described fresh water pump 65 enters clear water in described three casees overflow type agitator tanks by preset rotation speed;
Step a53, the stirring drive-motor 671 on described three casees overflow type agitator tanks drives an agitator arm 674 to rotate;
Step a54, the dewatering agent in described three casees overflow type agitator tanks flows out from described outlet by overflow mode;
Step a55, the dosing pump 55 on described pipeline enters dewatering agent in pipeline 2 according to the discharge capacity of predetermined amount.
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, amendment, and even equivalence, but all will fall within the scope of protection of the present invention.
Claims (10)
1. a rapid dehydration of sludge curing, is characterized in that, this process is:
Step a, gets slurry slush pump and exports the mud of absorption to pipeline, after first flow measuring sensor, flows into flocculation agent mixing device, and described the first measuring sensor imports institute's measurement of discharge data into a control device;
Step b, described control device, according to the flocculation agent adding rate setting in advance, is determined the rotating speed of the screw rod transmission unit in described flocculation agent mixing device, and according to this rotating speed, flocculation agent is added to described flocculation agent mixing device;
Step c, described flocculation agent and ducted mud are carried out mix and blend by described flocculation agent mixing device, after its two agitation vats that connect by twin-tub overflow mode mix mud, transfers to described pipeline;
Steps d, mud flow rate and concentration in the second flow measuring element on described pipeline and measurement of concetration element measuring channel, and this flow and concentration data are transferred to described control device;
Step e, described control device determines that according to default dewatering agent concentration the dewatering agent of dewatering agent mixing device adds rotating speed and a fresh water pump rotating speed of the spiral pump of unit according to the flow and the concentration data that record, and according to above-mentioned rotating speed, dewatering agent and clear water is added in the agitator tank of one or three casees overflow types and stir;
Step f, described dewatering agent mixing device is according to the output of default dewatering agent addition, and in line mixer on pipeline and mud stirring, and the slurries of fully realizing mud at pipe outlet after reaction separate.
2. rapid dehydration of sludge curing according to claim 1, is characterized in that, in above-mentioned steps b, and the following add-on of determining per minute flocculation agent according to formula of described control device,
Q
solidifying=Q
1× α
Wherein, Q
solidifyingrepresent the add-on of per minute flocculation agent, Q
1the flux values that represents the mud per minute that described first flow instrumentation obtains, α represents the adding rate of default flocculation agent; The adding rate α of flocculation agent is preset as 8%～10%.
3. rapid dehydration of sludge curing according to claim 1, is characterized in that, in above-mentioned steps e, described control device calculates the add-on of per minute dewatering agent according to the following equation,
Q
de-=Q
2× n
In formula, Q
de-represent the add-on of per minute dewatering agent, Q
2represent the flux values of the mud per minute that described the second flow measurement obtains, n represents the concentration that adds dewatering agent that described control device is default;
Wherein, the default concentration n that adds dewatering agent calculates according to following formula,
n＝0.6×β+0.6
In formula, β represents the ducted concentration of hydraulic mixture that described densitometer records.
4. rapid dehydration of sludge curing according to claim 3, is characterized in that, in above-mentioned steps e, the course of action of dewatering agent mixing device is,
Step e1, opens manual dosing valve, and agitator motor drives loading hopper to stir, and after a spiral is trembled sieve, enters in drug feeding pipeline;
Step e2, spiral pump enters the medicament in drug feeding pipeline in described three casees overflow type agitator tanks according to preset rotation speed, and described fresh water pump enters clear water in described three casees overflow type agitator tanks by preset rotation speed;
Step e3, the stirring drive-motor on described three casees overflow type agitator tanks drives an agitator arm to rotate;
Step e4, the dewatering agent in described three casees overflow type agitator tanks flows out from described outlet by overflow mode;
Step e5, the dosing pump on described pipeline enters dewatering agent in pipeline according to the discharge capacity of predetermined amount.
5. rapid dehydration of sludge curing according to claim 3, is characterized in that, described flocculation agent mixing device comprises that the flocculation agent mix bucket and that overflow connects stirs conveying barrel, wherein,
In described flocculation agent mix bucket, be provided with a mud import and a flocculation agent import; Described stirring conveying barrel is provided with a mud outlet, is provided with one second slush pump on the pipeline of this exit end;
Two barrels of upper ends communicate, and mud can unrestricted flow; And be respectively arranged with a rotation pump two barrels of upper ends, on rotation pump shaft, be provided with at least one impeller alternately.
6. according to the rapid dehydration of sludge curing described in claim 1 or 3, it is characterized in that, the agitator tank of described three casees overflow types comprises a medicament blending bin, an agitator tank, a medicament delivery casing, wherein, in described medicament blending bin, be provided with a water-in, described medicament delivery casing lower end is also provided with an outlet;
Described medicament blending bin and agitator tank communicate in lower end, and agitator tank and medicament delivery casing communicate in upper end, and it all realizes the automatic flowing of medicament by the mode of overflow.
7. rapid dehydration of sludge curing according to claim 6, it is characterized in that, on described medicament delivery casing, be also provided with a magnetic fluid level gauge, in the time that the liquid level in casing drops to default liquid level, described magnetic fluid level gauge meeting alarm, described control device receives after this information, adds unit and dewatering agent to add unit action according to clear water described in the dewatering agent add-on control of real-time setting, and the mix that completes pulvis solution supplements.
8. rapid dehydration of sludge curing according to claim 1, it is characterized in that, described screw rod transmission unit comprises a flocculation agent case, a drive-motor and a screw rod, wherein, described flocculation agent case is placed with flocculation agent, described drive-motor is subject to described control device control, and described screw rod is carried flocculation agent according to default flow under the driving of described drive-motor in described twin-tub overflow unit.
9. rapid dehydration of sludge curing according to claim 4, is characterized in that, described dewatering agent mixing device also comprises a loading hopper, and it is arranged on described spiral and trembles sieve upper end; Described manual dosing valve is arranged on described spiral and trembles sieve lower end, and in described spiral pump upper end.
10. rapid dehydration of sludge curing according to claim 4, it is characterized in that, each casing upper end in described three casees overflow type agitator tanks is provided with described stirring drive-motor, described agitator arm is set on the output shaft of described drive-motor, on it, is provided with at least one agitating vane alternately.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106984237A (en) * | 2017-05-25 | 2017-07-28 | 北京中岩大地科技股份有限公司 | A kind of modular multi-function mixer |
| CN107935338A (en) * | 2018-01-10 | 2018-04-20 | 广东鼎瑞建设工程有限公司 | A kind of pipeline sludge curing process equipment and its construction method |
| CN109580876A (en) * | 2018-10-24 | 2019-04-05 | 中交疏浚技术装备国家工程研究中心有限公司 | Pipeline slurry curing agent volume measuring system and method |
| 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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| CN103979777B (en) | 2015-11-25 |
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