CN103979776B - A kind of dehydrant mixing device suitable in sludge rapid dewatering system - Google Patents
A kind of dehydrant mixing device suitable in sludge rapid dewatering system Download PDFInfo
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Abstract
The present invention relates to a kind of dehydrant mixing device suitable in sludge rapid dewatering system, it includes a clear water supply unit, a dehydrant adds unit and a dehydrant agitating unit, wherein, the rotating speed of one screw pump and discharge capacity are determined according to the predetermined amount of described control device, and the powdery dehydrant of predetermined amount is added in described dehydrant mix unit by it；Described dehydrant mix unit, it is the agitator tank of one or three casees overflow types, sequentially adopts overflow manner to connect between three casees, and it includes the medicament blending bin, an agitator tank and the medicament delivery casing that are sequentially connected with；Wherein, described medicament blending bin adds unit be connected with described clear water supply unit, dehydrant, and described powdery dehydrant is dissolved by it in clear water；Described agitator tank connects in lower end with described medicament blending bin, and described medicament delivery casing connects in upper end with described agitator tank。Dehydrant mixing device of the present invention adopts the mode of three casees overflows, it is ensured that dehydrant stirring all with, export continuously。
Description
Technical field
The present invention relates to a kind of dehydrant mixing device, particularly relate to a kind of tool and be applicable to the dehydrant mixing device of sludge rapid dewatering system。
Background technology
Existing dewatering system is capable of processing sludge dewatering and solidifying, adds a certain amount of firming agent, the construction technology of a kind of blowing filling sludge ground-making and device thereof in the mud gathered, and device includes cured system A and the paving system B of improvement mud。This A includes: the devices such as pump is taken out, foreign material sieve removes, the conveying of firming agent bin stock, firming agent, compression air conveying and mixing mud mix conveying。This B includes: connect pipeline section, flexible pipe or belt conveyer and carrying and mobile device。Its construction process is: 1. in mud mud hydraulic reclamation to hydraulic reclamation region or sedimentation tank, will 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 firming agent, before pump or after pump, in pipeline, dense thick mud mud and firming agent are mixed to form mixing mud；3. mixing mud is delivered in mix conveyer device, forms improvement mud；4. improvement mud is exported, be delivered to paving system B by connecting pipeline section；5. paving system B will improve mud and lay to appointed thickness。
This patent Chinese medicine enters to fail accurately to control in real time, and the medicament of addition and output thereof are difficult to control in real time and adjust, and output stability is difficult to ensure that。
In view of drawbacks described above, creator of the present invention obtains this creation finally through research for a long time and practice。
Summary of the invention
It is an object of the invention to provide a kind of dehydrant mixing device suitable in sludge rapid dewatering system, in order to overcome above-mentioned technological deficiency。
For achieving the above object, the present invention provides a kind of dehydrant mixing device suitable in sludge rapid dewatering system, and it includes a clear water supply unit, a dehydrant adds unit and a dehydrant agitating unit, wherein,
Described clear water supply unit, it includes a clarified water pump, the rotating speed of described clarified water pump and discharge capacity and controls the predetermined amount of device according to the one of described rapid dehydration of sludge cure system and determine, and is added in described dehydrant agitating unit by the clear water of predetermined amount；
Described dehydrant adds unit, and it includes a screw pump, the rotating speed of described screw pump and discharge capacity and determines according to the predetermined amount of described control device, and the powdery dehydrant of predetermined amount is added in described dehydrant mix unit by it；
Described dehydrant mix unit, it is the agitator tank of one or three casees overflow types, sequentially adopts overflow manner to connect between three casees, and it includes the medicament blending bin, an agitator tank and the medicament delivery casing that are sequentially connected with；Wherein, described medicament blending bin adds unit be connected with described clear water supply unit, dehydrant, and described powdery dehydrant is dissolved by it in clear water；Described agitator tank connects in lower end with described medicament blending bin, and described medicament delivery casing connects in upper end with described agitator tank。
It is also preferred that the left be provided with an agitating device in described each agitator tank, in order to be stirred by dehydrant, described agitating device includes a stirring drive motor, a puddler and a stirring vane, wherein,
Described stirring drive motor, it is arranged on the upper end of described each casing, and its rotating speed is preset by described control device；
Described puddler, it is connected with described stirring drive motor output shaft, is provided with at least one described stirring vane。
It is also preferred that the left described dehydrant adds, unit also includes a loading hopper, a spiral trembles sieve and a drug feeding pipeline, wherein,
Described loading hopper is contained with powdery dehydrant, described loading hopper is provided with a stirring motor, in order to drive the powdery dehydrant in loading hopper to stir；
Described spiral is trembled sieve and is arranged on the lower end of described loading hopper, and the powdery dehydrant flowed out from described loading hopper flows through described spiral and trembles in the sieve described screw pump of entrance；
Being provided with described screw pump in described drug feeding pipeline, its end is connected with described medicament blending bin, is entered in it by powdery dehydrant。
Preferably, described dehydrant mixing device is arranged on a pipeline, mud flows in described dehydrant mixing device from this pipeline, pipeline before described dehydrant mixing device is provided with a second gauge and a densitometer, measures flow and the concentration of the mud flowed in described dehydrant mixing device respectively。
It is also preferred that the left described medicament blending bin is provided with a water inlet, enter in it with the clear water exported for described clear water input block；Described medicament delivery casing is provided with an outlet, in order to export stirring all and medicament。
It is also preferred that the left described medicament delivery casing is additionally 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, and notify described control device。
Set in real time it is also preferred that the left the pipeline of the port of export of described medicament delivery casing is provided with a dosing pump, the rotating speed of described dosing pump and discharge capacity by described control device, described dosing pump by stirring all and dehydrant enter in described pipeline。
It is also preferred that the left described dehydrant adds unit also includes a manual dosing valve, described manual dosing valve is arranged on described screw pump and spiral is trembled between sieve, the dehydrant output of loading hopper according to the rotating speed Non-follow control of the screw pump arranged in real time。
It is also preferred that the left the addition that described control device is according to a second gauge of setting on the pipeline before described dehydrant mixing device and the measurement flow of a densitometer and the concentration described dehydrant of setting。
It is also preferred that the left described control device determines the addition of dehydrant according to the following equation,
QDe-=Q2×n
In formula, QDe-Represent the addition of dehydrant per minute, Q2Representing the flow value that mud that described second flow measures is per minute, n represents the rotating speed of the screw pump in described dehydrant mixing device；
Wherein, the rotating speed n of described screw pump calculates according to following formula, and n represents that the dehydrant that described control device is preset adds concentration；
Wherein, set dehydrant adds concentration n and calculates according to following formula,
N=0.6 × β+0.6
In formula, β represents the concentration of hydraulic mixture in the pipeline that described densitometer records。
The beneficial effects of the present invention is compared with the prior art: the present invention is applicable to the dehydrant mixing device of sludge rapid dewatering system, dehydrant is stirred by the mode adopting three casees overflows, its Chinese medicine blending bin, in order to complete to add the preliminarily solubilised of powder, described agitator tank, in order to complete the storage of medicament and fully to dissolve, described medicament delivery casing, in order to complete the output of powder solution；The use of three casees overflow agitating devices, both can ensure that powder fully dissolved, and can store again solvent, it is achieved solvent continuously, not interrupted output use；The clear water supply unit of described dehydrant agitating device, dehydrant add unit and dehydrant agitating unit is all controlled by same control device, described control device is according to real-time mud flow rate and concentration information, determine the addition of dehydrant, ensure that dehydrant is stirred according to default amount and mud, export satisfactory mud；Ensure carrying out in order and streamlined operation of whole dehydrating and curing process simultaneously；Dehydrant addition unit arranges screw pump and sieve trembled by spiral, further ensure stirring of dehydrant。
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of rapid dehydration of sludge cure system of the present invention；
Fig. 2 be the flocculating agent mixing device of rapid dehydration of sludge cure system of the present invention face structural representation；
Fig. 3 is the structural representation of the dehydrant addition unit of rapid dehydration of sludge cure system of the present invention；
Fig. 4 is the structural representation of the dehydrant agitating unit of rapid dehydration of sludge cure system of the present invention。
Detailed description of the invention
Below in conjunction with accompanying drawing, to the present invention, above-mentioned and other technical characteristic and advantage are described in more detail。
In the present invention, sludge dewatering and solidifying system mainly includes flocculating agent mixing device and dehydrant mixing device, and dehydrant mixing device therein, in order to stirring that Powdered dehydrant is added water。
Refer to shown in Fig. 1, it is the overall structure schematic diagram of rapid dehydration of sludge cure system of the present invention, this system includes one and takes slurry-mud stock pump 1, one flocculating agent mixing device 3, one dehydrant mixing device 6, one controls device and a pipeline 5, wherein, described take slurry-mud stock 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 to described pipeline 2 after extracting native mud, in the present invention, mud is by described pipeline 2 and within it mud is carried out mix, the diameter of described pipeline 2 is determined according to output demand and the bearing capacity of equipment。
Described take after slurry-mud stock pump 1 extracts native mud, by in mud transmission to described pipeline 2, described flocculating agent mixing device 3 is entered after described first-class gauge 51, described first-class gauge 51 is to entering the mud flow rate measurement of described flocculating agent mixing device 3 and by this flow information transmission to described control device, before described effusion meter 51 is arranged on the entrance of described flocculating agent mixing device 3, and when described mud flows into described flocculating agent mixing device 3, described control device can according to the corresponding rotating speed of the screw rod transmission unit 4 in the addition of the good flocculating agent of this flow set and flocculating agent mixing device 3, therefore the duct length between described first-class gauge 51 and flocculating 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 flocculating agent mixing device face structural representation, in the present invention, this flocculating agent mixing device includes a screw rod transmission unit 4, one twin-tub overflow unit and one second slush pump 52, wherein, described screw rod transmission unit 4 includes a flocculating agent case 42, one drive motor 43 and a screw rod 41, in the present embodiment, described flocculating agent case 42 is placed with flocculating agent, described drive motor 43 is controlled by described control device 4, described screw rod 41 carries flocculating agent according to default flow under the driving of described drive motor 43 in described twin-tub overflow unit。
Described twin-tub overflow unit includes two agitators, respectively flocculating agent mix bucket 31 and a stirring conveying barrel 32, described flocculating agent mix bucket 31, it receives, from an import, the mud flowed into described pipeline 2, the flocculating agent of preset flow rate is inputted from another import, within it mud and the flocculating agent of mixing being stirred under the turning effort of impeller, described impeller is arranged on rotation pump shaft, is rotated pump by one and drives。Described stirring conveying barrel 32 adopts overflow manner to be connected with described flocculating agent mix bucket 31, two barrels of upper ends communicate, slurry liquid can free-flow, when the liquid level of described stirring conveying barrel 32 is lower than the liquid level of described flocculating agent mix bucket 31, serosity in described flocculating agent mix bucket 31 will automatic overflow to described stirring conveying barrel 32, it is ensured that described stirring conveying barrel 32 can continue to export。
The mode adopting overflow connects two agitators, not only increases the mix and blend time of mud and flocculating agent so that it is more uniform that serosity mixes, and, it is possible to ensure automatically controlling of serosity。
The serosity stirred is transmitted to described pipeline 2 by described stirring conveying barrel 32, and the pipeline 2 in this outlet is provided with described second slush pump 52, and flow of its output mud is determined according to the predetermined amount of described control device。
In above-mentioned flocculating agent mixing device 3, the flow of mud and flocculating agent is driven and the equipment that controls all is controlled by described control device。
In the present invention, described control device is integrated in a PLC control cabinet 8, and described control device includes a processing unit, detection unit and a motor unit, and wherein, described processing unit is a processor, and it can be a PLC processor；In described flocculating agent mixing device 3, the addition of flocculating agent and output are controlled by described control device。In the present embodiment, the adding rate α of flocculating agent is preset as 8%～10%, and this value is determined according to the requirement of foundation bearing capacity；The processing unit of described control device determines the addition of flocculating agent per minute according to formula (1),
QSolidifying=Q1×α(1)
Wherein, QSolidifyingRepresent the addition of flocculating agent per minute, Q1Representing the flow value that mud that described first flow measures is per minute, α represents the adding rate of default flocculating 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 addition of the flocculating agent calculated。
Flowing to pipeline 25 from described second slush pump 51 after described mud and flocculating agent mix, the outlet at described flocculating agent mixing device 3 is provided with a densitometer 53, and it measures the concentration of the mud before entering described dehydrant mixing device 6；This segment pipe 5 is additionally provided with a second gauge 54, in order to measure the flow of the mud before entering described dehydrant mixing device 6；The mud information gathered is transmitted the processing unit to described control device by described densitometer 53 and second gauge 54, and the unit of described process calculates the addition of dehydrant per minute according to this concentration and flow information according to formula (2),
QDe-=Q2×n(2)
In formula, QDe-Represent the addition of dehydrant per minute, Q2Representing the flow value that mud that described second flow measures is per minute, n represents that controlling the dehydrant that device presets adds concentration；
Wherein, described default dehydrant adds concentration n and calculates according to following formula (3),
N=0.6 × β+0.6 (3)
In formula, β represents the concentration of hydraulic mixture in the pipeline that described densitometer records。
Dehydrant is stirred by described dehydrant mixing device 6 according to this dehydrant addition arranged in real time。In the present invention, the concentration of the dehydrant of addition is set in real time by the concentration of the mud in described pipeline, controls the concentration that device sets the mud of final output in real time according to the concentration of hydraulic mixture in this pipeline。
Continuing with in conjunction with shown in Fig. 1, the dehydrant mixing device 6 of the present invention includes a clear water supply unit, a dehydrant adds unit 67 and a dehydrant agitating unit, in the present embodiment, described clear water supply unit includes a water intaking pond 66, and the mix that it is dehydrant provides clear water；Also including a clarified water pump 65, it is arranged on the outlet conduit of described clear water reserviors 65 lower end, and the clear water in described water intaking pond 66 is sucked in described dehydrant mix unit by it, and the rotating speed of described clarified water pump 65 and discharge capacity set according to the calculating of described control device。
Refer to shown in Fig. 3, its be rapid dehydration of sludge cure system of the present invention dehydrant add unit structural representation, described dehydrant addition unit 67 includes loading hopper 641, spiral and trembles sieve 646, stirring motor 644, manual dosing valve 64, screw pump 642, drug feeding pipeline 643 and a screw drive motor 645, dehydrant in the present invention is powder, wherein, described loading hopper 641 is contained with the dehydrant of powdery, described stirring motor 644 drives loading hopper 641 to stir, and makes the dehydrant in loading hopper stir；Spiral is trembled sieve 646 and is arranged on the lower end of described loading hopper 641, and the powdery dehydrant flowed out from described loading hopper 641 flows through described spiral and trembles in the sieve 646 described screw pump 642 of entrance；Described screw pump 642 is under the driving of screw drive motor 645, and dehydrant is added in described drug feeding pipeline 643 by the rotating speed arranged in real time according to described control device, and enters in described dehydrant agitating unit；Being provided with described screw pump 642 in described drug feeding pipeline 643, its end is connected with described dehydrant agitating unit；Described manual dosing valve 64 is arranged on described screw pump 642 and spiral is trembled between sieve 646, the dehydrant output of loading hopper 641 described in rotating speed Non-follow control according to the screw pump 642 arranged in real time, only need to meet and can continue to supply, it is ensured that the powder amount of discharging opening is consistent with actually required consumption；Powder flows through in the casing that the sieve 646 described dehydrant agitating unit of entrance trembled by described spiral, trembles sieve energy dispersion powder, it is prevented that powder enters casing and unites and dissolve insufficient, causes waste。
Referring to shown in Fig. 4, it is the structural representation of dehydrant agitating unit of rapid dehydration of sludge cure system of the present invention, and in the present embodiment, described dehydrant agitating unit is the agitator tank of one or three casees overflow types, sequentially adopts overflow manner to connect between three casees；It includes medicament blending bin 61, agitator tank 62 and a medicament delivery casing 63；Being provided with a water inlet in described medicament blending bin 61, in order to add clear water, it is additionally provided with described loading hopper 641 and screw pump 642, powder adds after in described medicament blending bin 61, meets water and starts to dissolve, and starts mix under the driving of drive motor。
In the present embodiment, an agitating device it is both provided with in each casing, it is stirring drive motor 671, puddler 674 and a stirring vane 675, described stirring drive motor 671, it is arranged on the upper end of each casing, its rotating speed is set by the preset rotation speed controlling the mixing control unit 677 that device controls described in, it is ensured that the dehydrant in casing can flow into adjacent casing smoothly；Described puddler 674, it is connected with the output shaft of described stirring drive motor 671, is provided with at least one stirring vane 675；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 realizes the automatic flowing of medicament each through the mode of overflow；Be additionally provided with an outlet 676 in the lower end of described medicament delivery casing 63, in order to export stirring all and medicament。
In the present embodiment, described medicament blending bin 61 and agitator tank 62 communicate in lower end, and clear water and dehydrant are after preliminary mix and blend, described agitator tank 62 is flowed into from lower end, agitator tank 62 and medicament delivery casing 63 communicate in upper end, it is ensured that described agitator tank 62 can be sufficiently stirred for, and stores enough medicaments。
Described medicament delivery casing 63 is additionally 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, controlling described clear water according to the dehydrant addition arranged in real time and add unit and dehydrant addition unit action, the mix completing powder solution supplements。
Described three casings, its Chinese medicine blending bin 61, in order to complete to add the preliminarily solubilised of powder, 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 powder solution；The use of three casees overflow agitating devices, both can ensure that powder fully dissolved, and can store again solvent, it is achieved solvent continuously, not interrupted output use。
After described dehydrant mix completes, entering in described pipeline 2 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 dehydrant of predetermined amount mixes in described pipeline 2 with the mud of respective concentration, described pipeline 2 is additionally provided with a pipe-line mixer 15, mud reacts under the effect of dehydrant in described pipe-line mixer 15, and in the present embodiment, the length of reacting pipe is more than 60m；Described pipe-line mixer 15 is a static pipeline mixer, it designs according to hydraulic principle, mud changes its flow rate regime after flowing through particular element in pipeline 2, by laminar motion change realize chemical agent and mud all and mix, and realize the serosity separation of mud at the pipe outlet of described pipe-line mixer 15。
The foregoing is only presently preferred embodiments of the present invention, invention is merely illustrative, and nonrestrictive。Those skilled in the art is understood, and it can be carried out many changes in the spirit and scope that invention claim limits, amendment, even equivalence, but falls within protection scope of the present invention。
Claims (6)
1. the dehydrant mixing device being applicable to sludge rapid dewatering system, it is characterised in that it includes a clear water supply unit, a dehydrant adds unit and a dehydrant agitating unit, wherein,
Described clear water supply unit, it includes a clarified water pump, the rotating speed of described clarified water pump and discharge capacity and controls the predetermined amount of device according to the one of described sludge rapid dewatering system and determine, and is added in described dehydrant agitating unit by the clear water of predetermined amount；
Described dehydrant adds unit, and it includes a loading hopper, sieve trembled by a spiral, a drug feeding pipeline and a screw pump, wherein,
Described loading hopper is contained with powdery dehydrant, described loading hopper is provided with a stirring motor, in order to drive the powdery dehydrant in loading hopper to stir；
Described spiral is trembled sieve and is arranged on the lower end of described loading hopper, and the powdery dehydrant flowed out from described loading hopper flows through described spiral and trembles in the sieve described screw pump of entrance；
Described screw pump it is provided with in described drug feeding pipeline；
The rotating speed of described screw pump and discharge capacity are determined according to the predetermined amount of described control device, and the powdery dehydrant of predetermined amount is added in described dehydrant agitating unit by it；
Described dehydrant agitating unit, it is the batchbox of one or three casees overflow types, sequentially adopts overflow manner to connect between three casees, and it includes the medicament blending bin, an agitator tank and the medicament delivery casing that are sequentially connected with；Wherein, described medicament blending bin adds unit be connected with described clear water supply unit, dehydrant, and described powdery dehydrant is dissolved by it in clear water；Described agitator tank connects in lower end with described medicament blending bin, described medicament delivery casing connects in upper end with described agitator tank, described dehydrant mixing device is arranged on a pipeline, mud flows in described dehydrant mixing device from this pipeline, pipeline before described dehydrant mixing device is provided with a second gauge and a densitometer, measure flow and the concentration of the mud flowed in described dehydrant mixing device respectively, the described control device addition according to a second gauge of setting on the pipeline before described dehydrant mixing device and the measurement flow of a densitometer and the concentration described dehydrant of setting；
Described control device determines the addition of dehydrant according to the following equation,
QDe-=Q2×n
In formula, QDe-Represent the addition of dehydrant per minute, Q2Representing the flow value that mud that described second flow measures is per minute, n represents that the dehydrant that described control device is preset adds concentration,
Wherein, default dehydrant adds concentration n and calculates according to following formula,
N=0.6 × β+0.6
In formula, β represents the mud concentration in the pipeline that described densitometer records。
2. the dehydrant mixing device suitable in sludge rapid dewatering system according to claim 1, it is characterized in that, it is provided with an agitating device in described medicament blending bin, described agitator tank and described medicament delivery casing, in order to dehydrant is stirred, described agitating device includes a stirring drive motor, a puddler and a stirring vane, wherein
Described stirring drive motor, it is arranged on the upper end of described medicament blending bin, described agitator tank and described medicament delivery casing, and its rotating speed is preset by described control device；
Described puddler, it is connected with described stirring drive motor output shaft, alternate on it is provided with at least one described stirring vane。
3. the dehydrant mixing device suitable in sludge rapid dewatering system according to claim 1, it is characterised in that be provided with a water inlet in described medicament blending bin, enters in it with the clear water exported for described clear water input block；Described medicament delivery casing is provided with an outlet, in order to export the medicament stirred。
4. the dehydrant mixing device suitable in sludge rapid dewatering system according to claim 3, it is characterized in that, described medicament delivery casing is additionally 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, and notify described control device。
5. the dehydrant mixing device suitable in sludge rapid dewatering system according to claim 1, it is characterized in that, the pipeline of the port of export of described medicament delivery casing is provided with a dosing pump, the rotating speed of described dosing pump and discharge capacity are set in real time by described control device, and the dehydrant stirred is entered in described pipeline by described dosing pump。
6. the dehydrant mixing device suitable in sludge rapid dewatering system according to claim 1, it is characterized in that, described dehydrant adds unit and also includes a manual dosing valve, described manual dosing valve is arranged on described screw pump and spiral is trembled between sieve, the dehydrant output of loading hopper according to the rotating speed Non-follow control of the screw pump arranged in real time。
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| CN107694473B (en) * | 2016-08-08 | 2021-07-02 | 富泰华精密电子（济源）有限公司 | Automatic medicine feeding system and using method thereof |
| CN112094037A (en) * | 2020-09-24 | 2020-12-18 | 葛洲坝中固科技股份有限公司 | Automatic change accurate medicine silt system of modifying |
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