CN103979777B - A kind of rapid dehydration of sludge curing - Google Patents
A kind of rapid dehydration of sludge curing Download PDFInfo
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- CN103979777B CN103979777B CN201310302394.1A CN201310302394A CN103979777B CN 103979777 B CN103979777 B CN 103979777B CN 201310302394 A CN201310302394 A CN 201310302394A CN 103979777 B CN103979777 B CN 103979777B
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- 239000010802 sludge Substances 0.000 title claims abstract description 32
- 230000018044 dehydration Effects 0.000 title claims abstract description 29
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 182
- 238000005189 flocculation Methods 0.000 claims abstract description 90
- 230000016615 flocculation Effects 0.000 claims abstract description 90
- 238000002156 mixing Methods 0.000 claims abstract description 67
- 238000003756 stirring Methods 0.000 claims abstract description 33
- 239000002002 slurry Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000008676 import Effects 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- 239000003814 drug Substances 0.000 claims description 42
- 239000000203 mixture Substances 0.000 claims description 35
- 238000011068 loading method Methods 0.000 claims description 11
- 206010044565 Tremor Diseases 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 229940079593 drug Drugs 0.000 claims description 8
- 239000013505 freshwater Substances 0.000 claims description 8
- 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
- 238000012546 transfer Methods 0.000 claims description 4
- 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
- 238000012545 processing Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 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
- 229920002472 Starch Polymers 0.000 description 1
- 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
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- 235000019698 starch Nutrition 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to a kind of rapid dehydration of sludge curing, this process is: get slurry slush pump and export the mud of absorption to pipeline, after flow measurement, flow into flocculation agent mixing device, measuring result imports a control device into; Described control device, according to the flocculation agent adding rate pre-set, determines 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 described flocculation agent mixing device; Mud flow rate in the second flow measuring element on described pipeline and measurement of concetration element measuring channel and concentration; Described control device to stir in agitator tank dewatering agent and clear water being added one or three casees overflow types according to the dewatering agent concentration preset according to the flow recorded and concentration data; Described dewatering agent mixing device exports according to the dewatering agent addition preset, and in line mixer on pipeline and mud stirring.The present invention successively adds flocculation agent process to mud and adds dewatering agent process, exports satisfactory mud.
Description
Technical field
The present invention relates to a kind of sludge dewatering and solidifying method, particularly relate to a kind of fast dewatering curing adding flocculation agent and dewatering agent.
Background technology
Existing dewatering system can realize sludge dewatering and solidifying process, in the mud gathered, add 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 devices such as pump is taken out, foreign material sieve removes, the conveying of solidifying agent bin stock, solidifying agent, 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 in 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 mixing mud; 3. mixing mud is delivered in mix e Foerderanlage, forms improvement mud; 4. improveing mud to export, being delivered to paving system B by connecting pipeline section; 5. paving system B will improve mud laying to appointed thickness.
Adding of medicament in this patent fails to realize accurately controlling in real time, and the medicament added and work output are difficult to real-time controlling and adjustment.
In view of above-mentioned defect, creator of the present invention obtains 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, this process is:
Step a, get slurry slush pump and export the mud of absorption to pipeline, after first flow measuring sensor, flow into flocculation agent mixing device, described 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 pre-set, determines 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 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, and it transfers to described pipeline after being mixed by mud by two agitation vats that twin-tub overflow manner connects;
Steps d, the mud flow rate in the second flow measuring element on described pipeline and measurement of concetration element measuring channel and concentration, and this flow and concentration data are transferred to described control device;
Step e, described control device adds rotating speed and a fresh water pump rotating speed of the spiral pump of unit according to the dewatering agent of the dewatering agent concentration determination dewatering agent mixing device preset according to the flow recorded and concentration data, and stir in the agitator tank according to above-mentioned rotating speed dewatering agent and clear water being added one or three casees overflow types;
Step f, described dewatering agent mixing device exports according to the dewatering agent addition preset, and in line mixer on pipeline and mud stirring, and the slurries fully realizing mud at pipe outlet after reaction are separated.
Preferably, in above-mentioned steps b, the following add-on according to formula determination per minute flocculation agent of described control device,
Q
solidifying=Q
1× α
Wherein, Q
solidifyingrepresent the add-on of per minute flocculation agent, Q
1represent the flux values of the mud per minute that described first flow measures, 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
2represent the flux values of the mud per minute that described second gauge records, n represents the concentration of hydraulic mixture that the control device in described dewatering agent mixing device is preset;
Wherein, default concentration of hydraulic mixture n according to following formulae discovery,
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 trembles after sieve enter in drug feeding pipeline through a spiral;
Step e2, the medicament in drug feeding pipeline enters in described three casees overflow type agitator tanks according to preset rotation speed by spiral pump, and clear water enters in described three casees overflow type agitator tanks by preset rotation speed by described fresh water pump;
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 is flowed out from described outlet by overflow manner;
Step e5, dewatering agent enters in pipeline according to the discharge capacity of predetermined amount by the dosing pump on described pipeline.
Preferably, the flocculation agent mix bucket and that described flocculation agent mixing device comprises overflow connection stirs conveying barrel, wherein,
A mud inlet and a flocculation agent import is provided with in described flocculation agent mix bucket; Described stirring conveying barrel is provided with a slurry outlet, the pipeline of this exit end is provided with one second slush pump;
Two barrels of upper ends communicate, and mud can unrestricted flow; And be respectively arranged with a rotation pump two barrels of upper ends, rotation pump shaft is 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, 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, described medicament delivery casing is also provided with a magnetic fluid level gauge, when the liquid level in casing drops to default liquid level, described magnetic fluid level gauge meeting alarm, after described control device receives this information, control described clear water according to the dewatering agent add-on arranged in real time and add unit and dewatering agent adds unit action, the mix completing 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 controls by described control device, and described screw rod carries flocculation agent according to the flow preset 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, each casing upper end in described three casees overflow type agitator tanks is provided with described stirring drive-motor, and the output shaft of described drive-motor arranges described agitator arm, is provided with at least one agitating vane alternately.
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 process to mud and adds dewatering agent process, all to measure the flow of mud before each treating processes, 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, the add-on of flocculation agent and dewatering agent is determined, ensure that flocculation agent and dewatering agent stir according to the amount preset and mud, export satisfactory mud; The control process of whole pipeline and device thereof controls by a control device is unified, ensure whole dehydrating and curing process carry out in order operate with streamlined; The casing that flocculation agent mixing device in the present invention and dewatering agent mixing device all adopt overflow manner to be connected or bucket, ensure that slurries can stir, store and export continuously.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of rapid dehydration of sludge cure system of the present invention;
Fig. 2 be the flocculation agent mixing device of rapid dehydration of sludge cure system of the present invention 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, to above-mentioned being described in more detail with other technical characteristic and advantage of the present invention.
After rapid dehydration of sludge cure system in the present invention gathers raw slurry, successively add solidifying agent and the dewatering agent of predetermined amount in a continuous print pipeline, and export after mixing, whole dehydrating and curing process realizes continuously.
Refer to shown in Fig. 1, its one-piece construction schematic diagram being 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, described getting starches slush pump 1, for extracting native mud, the flow of described first slush pump 1 is determined according to the performance of integral device, it inputs in described pipeline 5 after extracting native mud, in the present invention, mud also carries out mix to mud within it by described pipeline 5, the diameter of described pipeline 5 is determined according to the output demand of equipment and supporting capacity.
Described get slurry slush pump 1 extract native mud after, mud is transferred in described pipeline 5, described flocculation agent mixing device 3 is entered after described first-class gauge 51, described first-class gauge 51 is measured the mud flow rate entering described flocculation agent mixing device 3 and this flow information is transferred to described control device, before described under meter 51 is arranged on the entrance of described flocculation agent mixing device 3, and when described mud flows into described flocculation agent mixing device 3, described control device can 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-class gauge 51 and flocculation agent mixing device 3 is determined according to the flow velocity of this mud.
Refer to shown in Fig. 2, its for rapid dehydration of sludge cure system of the present invention flocculation agent mixing device face 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 controls by described control device 4, described screw rod 41 carries flocculation agent according to the flow preset 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 flowed into described pipeline 5, from the flocculation agent of another import input preset flow rate, the mud of mixing and flocculation agent are stirred under the turning effort of within it some impellers, described impeller being arranged on alternately is rotated on pump shaft, rotate pump by one to drive, described rotation pump is separately positioned on the upper end of described two barrels.Described stirring conveying barrel 32 adopts overflow manner to be connected with described flocculation agent mix bucket 31, two barrels of upper ends communicate, slurry liquid can unrestricted flow, when liquid level lower than described flocculation agent mix bucket 31 of the liquid level of described stirring conveying barrel 32, 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 to export.
Adopt the mode of overflow to connect two agitation vats, not only increase the mix and blend time of mud and flocculation agent, what slurries were mixed is more even, and, the automatic control of slurries can be ensured.
The slurries stirred transfer in described pipeline 5 by described stirring conveying barrel 32, the pipeline 5 in this outlet are provided with described second slush pump 52, and its flow exporting 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 to be driven and the equipment that controls all controls by described control device.
In the present invention, described control device is integrated in a PLC control cabinet 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 processor; In described flocculation agent mixing device 3, the add-on of flocculation agent and work output are controlled by described control device.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 determines 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
1represent the flux values of the mud per minute that described first flow measures, α represents the adding rate of default flocculation agent.
Described processing unit sets the rotating speed of the drive-motor of described screw rod transmission unit 4 and the rotating speed of described second slush pump 52 according to the add-on of the flocculation agent calculated.
Flow to pipeline 55 from described second slush pump 51 after described mud and flocculation agent mix, the outlet of described flocculation agent mixing device 3 is provided with a densitometer 53, it measures the concentration of the mud before entering described dewatering agent mixing device 6; This segment pipe 5 is also provided with a second gauge 54, in order to measure the flow of the mud before entering described dewatering agent mixing device 6; Described densitometer 53 and second gauge 54 are by the mud information transmission that gathers to the processing unit of described control device, and the unit of described process calculates the add-on of per minute dewatering agent according to this concentration and flow information according to formula (2),
Q
de-=Q
2× n (2)
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 second gauge records, what n represented the dewatering agent that institute's control device is preset adds concentration;
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.
Dewatering agent stirs by the dewatering agent add-on that described dewatering agent mixing device 6 is arranged in real time according to this.Please continue shown in composition graphs 1, dewatering agent mixing device 6 of the present invention comprises a clear water supply unit, a dewatering agent adds 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 being dewatering agent provides clear water; Also comprise a fresh water pump 65, the clear water in described water intaking pond 66 sucks in described dewatering agent mix unit by it, and rotating speed and the discharge capacity of described fresh water pump 65 set according to the calculating of described control device.
Refer to shown in Fig. 3, its dewatering agent being rapid dehydration of sludge cure system of the present invention adds the structural representation of unit, described dewatering agent adds unit and comprises a loading hopper 641, sieve 646 trembled by one spiral, 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, the dewatering agent of powdery is contained with in described loading hopper 641, it is arranged on described spiral and trembles sieve 646 upper end, 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 dewatering agent adds in described drug feeding pipeline 643 by the rotating speed arranged in real time according to described control device, 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 end, the dewatering agent output of loading hopper 641 according to the rotating speed Non-follow control of the spiral pump 642 arranged in real time, only need meet and can continue to supply, the pulvis amount of guarantee discharge port is consistent with actual institute expense, powder stream is trembled sieve 646 through described spiral and is entered in the casing of described dewatering agent agitating unit, trembles sieve energy dispersion powder, prevents pulvis from entering casing and unite and dissolve insufficient, cause waste.
Refer to shown in Fig. 4, it is the structural representation of the dewatering agent agitating unit of rapid dehydration of sludge cure system of the present invention, and in the present embodiment, described dewatering agent agitating unit is the agitator tank of one or three casees overflow types, adopts overflow manner to connect between three casees in turn; It comprises medicament blending bin 61, agitator tank 62 and a medicament delivery casing 63; Described medicament blending bin 61 is provided with a water-in, in order to add clear water, it is also provided with described loading hopper 641 and spiral pump 642, pulvis adds after in described medicament blending bin 61, meets water and starts to dissolve, and start mix under the driving of drive-motor.
In the present embodiment, a whipping appts is provided with in each casing, it is stirring drive-motor 671, agitator arm 674 and an agitating vane 675, described stirring drive-motor 671, be arranged on the upper end of each casing, the preset rotation speed of the mixing control unit 677 that its rotating speed is controlled by control device described in sets, and ensures that the dewatering agent in casing can flow into adjacent casing smoothly; The output shaft of described stirring drive-motor 671 arranges described agitator arm 674, 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; An outlet 676 is also provided with, in order to export the medicament stirred in the lower end of described medicament delivery casing 63.
Described medicament delivery casing 63 is also provided with a magnetic fluid level gauge 673, when the liquid level in casing drops to default liquid level, described magnetic fluid level gauge 673 meeting alarm, after described control device receives this information, control described clear water according to the dewatering agent add-on arranged in real time and add unit and dewatering agent adds unit action, the mix completing pulvis solution supplements.
Described three casings, its Chinese medicine blending bin 61, in order to complete the preliminarily solubilised adding 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 dissolves, and can store solvent again, realize solvent continuously, not interrupted output use.
After described dewatering agent mix completes, enter in described pipeline 5 through a dosing pump 55, rotating speed and the discharge capacity of described dosing pump 55 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, a line mixer 15 is also provided with in described pipeline 5, 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 pipeline mixer, it designs according to hydraulic principle, mud changes its flow rate regime flow through particular element in pipeline 5 after, by telescopic movement change realize chemical agent and mud all and mix, and realize the slurries separation of mud at the pipe outlet of described line mixer 15.
Refer to shown in Fig. 5, it is the 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-class gauge 51, flow into flocculation agent mixing device 3, described first-class gauge 51 imports institute's measurement of discharge data into a control device;
Step a2, described control device, according to the flocculation agent adding rate pre-set, determines 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 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, and it transfers to described pipeline 2 after being mixed by mud by two agitation vats that twin-tub overflow manner connects;
Step a4, the mud flow rate in the second gauge 54 on described pipeline 2 and densitometer 53 measuring channel 2 and concentration, and this flow and concentration data are transferred to described control device;
Step a5, described control device adds rotating speed and fresh water pump 65 rotating speed of the spiral pump 642 of unit according to the dewatering agent of the dewatering agent concentration determination dewatering agent mixing device 6 preset according to the flow recorded and concentration data, and stir in the agitator tank according to above-mentioned rotating speed dewatering agent and clear water being added one or three casees overflow types;
Step a6, described dewatering agent mixing device 6 exports according to the dewatering agent addition preset, and in line mixer 15 on pipeline 2 and mud stirring, fully realizes the slurries separation of mud after reaction at pipe outlet.
Refer to shown in Fig. 6, it is the schema of the course of action of the dewatering agent mixing device of rapid dehydration of sludge curing of the present invention, and this process is,
Step a51, opens manual dosing valve 64, and agitator motor 644 drives loading hopper 641 to stir, and trembles after sieve 646 enter in drug feeding pipeline 643 through a spiral;
Step a52, the medicament in drug feeding pipeline 643 enters in described three casees overflow type agitator tanks according to preset rotation speed by spiral pump 642, and clear water enters in described three casees overflow type agitator tanks by preset rotation speed by described fresh water pump 65;
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 is flowed out from described outlet by overflow manner;
Step a55, dewatering agent enters in pipeline 2 according to the discharge capacity of predetermined amount by the dosing pump 55 on described pipeline.
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 can carry out many changes in the spirit and scope that invention claim limits to it, amendment, 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, get slurry slush pump and export the mud of absorption to pipeline, after first flow measuring sensor, flow into flocculation agent mixing device, described 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 pre-set, determines 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 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, and it transfers to described pipeline after being mixed by mud by two agitation vats that twin-tub overflow manner connects;
Steps d, the mud flow rate in the second flow measuring element on described pipeline and measurement of concetration element measuring channel and concentration, and this flow and concentration data are transferred to described control device;
Step e, described control device adds rotating speed and a fresh water pump rotating speed of the spiral pump of unit according to the dewatering agent of the dewatering agent concentration determination dewatering agent mixing device preset according to the flow recorded and concentration data, and stir in the agitator tank according to above-mentioned rotating speed dewatering agent and clear water being added one or three casees overflow types;
Step f, described dewatering agent mixing device exports according to the dewatering agent addition preset, and in line mixer on pipeline and mud stirring, and the slurries fully realizing mud at pipe outlet after reaction are separated.
2. rapid dehydration of sludge curing according to claim 1, is characterized in that, in above-mentioned steps b, and the following add-on according to formula determination per minute flocculation agent of described control device,
Q
solidifying=Q
1× α
Wherein, Q
solidifyingrepresent the add-on of per minute flocculation agent, Q
1represent the flux values of the mud per minute that described first flow measures, 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 second gauge records, n represents the concentration adding dewatering agent that described control device is preset;
Wherein, the default concentration n adding dewatering agent according to following formulae discovery,
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 trembles after sieve enter in drug feeding pipeline through a spiral;
Step e2, the medicament in drug feeding pipeline enters in described three casees overflow type agitator tanks according to preset rotation speed by spiral pump, and clear water enters in described three casees overflow type agitator tanks by preset rotation speed by described fresh water pump;
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 is flowed out from described outlet by overflow manner;
Step e5, dewatering agent enters in pipeline according to the discharge capacity of predetermined amount by the dosing pump on described pipeline.
5. rapid dehydration of sludge curing according to claim 3, is characterized in that, the flocculation agent mix bucket and that described flocculation agent mixing device comprises overflow connection stirs conveying barrel, wherein,
A mud inlet and a flocculation agent import is provided with in described flocculation agent mix bucket; Described stirring conveying barrel is provided with a slurry outlet, the pipeline of this exit end is provided with one second slush pump;
Two barrels of upper ends communicate, and mud can unrestricted flow; And be respectively arranged with a rotation pump two barrels of upper ends, rotation pump shaft is provided with at least one impeller alternately.
6. the rapid dehydration of sludge curing according to 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, 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.
7. rapid dehydration of sludge curing according to claim 6, it is characterized in that, described medicament delivery casing is also provided with a magnetic fluid level gauge, when the liquid level in casing drops to default liquid level, described magnetic fluid level gauge meeting alarm, after described control device receives this information, control described clear water according to the dewatering agent add-on arranged in real time and add unit and dewatering agent adds unit action, the mix completing 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 controls by described control device, and described screw rod carries flocculation agent according to the flow preset 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, the output shaft of described drive-motor arranges described agitator arm, is provided with at least one agitating vane alternately.
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| CN201310302394.1A CN103979777B (en) | 2013-07-18 | 2013-07-18 | A kind of rapid dehydration of sludge curing |
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| CN103979777B true CN103979777B (en) | 2015-11-25 |
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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 |
| CN109580876B (en) * | 2018-10-24 | 2021-03-19 | 中交疏浚技术装备国家工程研究中心有限公司 | System and method for measuring mixing amount of pipeline slurry curing agent |
| 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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| CN1769221A (en) * | 2004-10-29 | 2006-05-10 | 中国石油化工股份有限公司 | Sludge dewatering agent and its preparation method |
| CN201746439U (en) * | 2010-02-08 | 2011-02-16 | 宁波高新区围海工程技术开发有限公司 | Rapid dehydrating system for pumping sludge |
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| CN1215030A (en) * | 1998-09-25 | 1999-04-28 | 上海市杨浦区河道管理所 | Post-dosing centrifugal dehydration process for municipal engineering slurry machine |
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