CN103241920A - Chemical conditioning multistage mixing technology of sludge - Google Patents
Chemical conditioning multistage mixing technology of sludge Download PDFInfo
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- CN103241920A CN103241920A CN2012100220286A CN201210022028A CN103241920A CN 103241920 A CN103241920 A CN 103241920A CN 2012100220286 A CN2012100220286 A CN 2012100220286A CN 201210022028 A CN201210022028 A CN 201210022028A CN 103241920 A CN103241920 A CN 103241920A
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Abstract
The invention relates to a sludge press filtration dehydration processing technology, and discloses a chemical conditioning multistage mixing technology of sludge. The technology adopts a four-stage mixing method, changes an original two-stage large-volume stirring mixing form, and allows a pipeline mixer and a powdery conditioning emulsion preparation and adding apparatus to be arranged in the sludge and conditioning emulsion conveying process, and the four-stage mixing makes the effect obvious, reduces manpower, power, conditioning emulsion and equipment consumption and reduces the operation cost; and the application of a PLC programmable control system realizes a high automation degree and a convenient operation.
Description
Technical field
The present invention relates to sludge press filtration processed technology, relate in particular to the multistage hybrid technique of a kind of Sludge Chemical Conditioning.
Background technology
The at present domestic van-type plate and frame diaphragm filter press that more generally adopts carries out the sludge dewatering treatment technology generation for traditional sludge solid-liquid separation techniques such as original centrifugal dewatering of sludge, vacuum suction filter dehydration, belt filter press dehydrations, makes moisture percentage in sewage sludge reach the emission request of national regulation.
Solids in the mud mainly is made up of the electronegative colloidal solid of wetting ability, because particulate matter is tiny and inhomogeneous, the bonding force of sludge water and sewage sludge solid particle is very strong, and is bigger than resistance, so dewatering is relatively poor.In order to improve the performance of sludge dewatering, improve the effect of mechanical dehydration, need change the physico-chemical property of mud by conditioning, reduce the avidity of colloidal solid and water, for solid-liquid separation creates conditions.Sludge conditioning mainly comprises chemical conditioning, the temperature difference is modified and the microorganism flocculation is modified.
Chemical conditioning is to use maximum mud hardening and tempering methods at present.Its ultimate principle is the amendment that can play electrical neutralization or adsorption bridging effect by adding in mud, as coagulating agent, flocculation agent, coagulant aids etc., destroy the stability of mud colloidal solid, make to assemble mutually between the small-particle of dispersion to be split into macrobead, thereby improve the dehydration property of mud.
The amendment that adds in the chemical conditioning process can be divided into pressed powder, liquid on form, amount by a certain percentage is by directly adding or make the emulsion dosing method, with be transported to quantitative mud in the sludge conditioning pond that whipping appts is installed and mix to reach and change the mud structure, strengthen flco intensity, destroy colloidal stability, thereby improve the purpose of dehydration property.
Generally adopt in the present domestic sludge press filtration dewatering process: the powdery amendment directly adds with powdery amendment preparation emulsion and adds two kinds of addition methods.
Cause dust from flying to pollute production environment easily owing to directly add the powdery amendment, increase sludge conditioning pond whipping appts structure and power, cause incomplete mixing to influence conditioning effect easily.Emulsion add be with the powdery amendment by with the emulsion addition method that is mixed and made into certain proportion concentration of liquid, existing domestic and international mud generally adopts tap water or middle water and Powdered amendment to be mixed with emulsion to carry out addition method with pump delivery again, device structure is complicated and huge, and investment, place, working cost increase.The extra water yield that increases causes follow-up filter-press dehydration technique operation hours to prolong, and the solid-liquid separation load strengthens.The heat that the former water chemistry reaction of powdery amendment and mud produces in the preparation emulsion process is to the modifying function forfeiture of enzyme in the mud.It is to improve the sludge conditioning effect that amendment mixes sufficiently uniformly with mud, reduces the loss of amendment, accelerates follow-up mechanical dehydration speed, reduces the determinative of working cost.
Summary of the invention
The present invention is directed to directly adding with emulsion of generally adopting in the present Sludge Chemical Conditioning technological process and add two kinds of shortcomings that amendment dosing method effect is bad, and provide a kind of brand-new Sludge Chemical Conditioning multistage hybrid technique.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
The multistage hybrid technique of Sludge Chemical Conditioning may further comprise the steps:
The first step: the mud in the sludge sump is entered line mixer with constant rate by advancing the mud pipeline with advancing dredge pump, open amendment solution throwing device, volume pump simultaneously, amendment solution is transported to carries out one-level synchronously with mud in the line mixer and mix, mixed mud carries out secondary by the conditioning agitator of installing in the sludge conditioning pond and mixes in the line mixer outlet conduit flow into the sludge conditioning pond;
Second step: after secondary mixes end, open powdery amendment feed bin, open the preparation of powdery amendment emulsion and throwing device, intake pump extracts in the sludge conditioning pond the mixed mud of secondary with constant rate, open powdery amendment feed bin bottom discharge port, inlet amount is by the weighing device control that is installed on the powdery amendment feed bin, the discharge port that powder enters the conveyer feed inlet of installing the bottom and is transported to specified location is added in the opening for feed of the preparation of powdery amendment emulsion and throwing device, the mixed mud of secondary and powder stir realization in the preparation of powdery amendment emulsion and throwing device mixes for three grades, overflow to voluntarily in the sludge conditioning pond by the emulsion discharge pipe of powdery amendment emulsion preparation with throwing device afterwards, carrying out level Four by the conditioning agitator of having opened in the sludge conditioning pond mixes, so far the powdery amendment adds end, mixing of conditioning agitator some time in the sludge conditioning pond again, the multistage hybrid technique of Sludge Chemical Conditioning is finished.
Powdery amendment emulsion preparation in the described step 2 comprises stirred pot with throwing device, be provided with the newborn agitator of system in the stirred pot, make newborn agitator and be provided with the newborn agitator motor of system and speed reduction unit, be connected with inlet channel and emulsion discharge pipe on the stirred pot sidewall, the upper surface of stirred pot also is connected with the dedusting outlet conduit, inlet channel links to each other with the stirred pot sidewall by intake pump, the preparation of amendment emulsion is connected with powdery amendment transfer roller with opening for feed place, throwing device upper end, and the other end of powdery amendment transfer roller is connected with powdery amendment feed bin.Inlet channel and emulsion discharge pipe are positioned at stirred pot sidewall mid-way, guarantee that the mud in the stirred pot is in certain liquid level, make the powdery amendment mix fully with mud, thereby strengthen the sludge conditioning effect.The device top is provided with fly-ash separator, is used for collecting the dust that the powder process of adding is flown upward.Band dirt air-flow is spaced apart by the rectangle liquid level that dedusting outlet conduit and rectangle discharge port form, and the amendment emulsion current that vertically liquidate reach dust removing effects.
Sludge conditioning pond in described step 1 and the step 2 is provided with liquidometer.Be used for detecting in real time the liquid level of mud in the sludge conditioning pond.
Described powdery amendment feed bin, transfer roller, conditioning agitator, make newborn agitator, intake pump, advance dredge pump and volume pump, liquidometer is all by the PLC central controller controls.The using PLC central controller, control able to programme, the level of automation height, it is more convenient to operate.
Sludge conditioning pond in the described the first step is two or more.
Amendment solution throwing device in the described step 1 is connected with amendment formulations prepared from solutions device, and amendment formulations prepared from solutions device is prepared into amendment solution with the solid, powdery amendment and is delivered in the amendment solution throwing device stand-by.
Realize the device of the multistage hybrid technique of the technology of the present invention Sludge Chemical Conditioning, comprise the sludge conditioning pond, be provided with the conditioning agitator in the sludge conditioning pond, the sludge conditioning pond is provided with conditioning agitator motor and speed reduction unit, mud enters in the sludge conditioning pond in sludge sump by advancing the mud pipeline, the top in described sludge conditioning pond is connected with the preparation of powdery amendment emulsion and throwing device, and described sludge conditioning pond also is connected with line mixer, amendment solution throwing device.
The other end of amendment solution throwing device is connected with amendment formulations prepared from solutions device.
Sludge conditioning pond upper end is connected with line mixer, and the mud in the sludge sump enters in the line mixer after the mud pipeline links to each other with advancing by advancing dredge pump; Amendment solution in the amendment solution throwing device enters in the line mixer after by volume pump.
Powdery amendment feed bin, transfer roller, conditioning agitator motor and speed reduction unit, system breast agitator motor and speed reduction unit, liquidometer, intake pump, advance dredge pump, liquidometer and volume pump and all be electrically connected with the PLC central controller.
The beneficial effect of the technology of the present invention is: Working environment does not have and directly adds the dust pollution that causes easily, and human body and equipment are not caused harmful effect; The preparation of mud and powdery amendment be the newborn process of system also be conditioning mixing process, not making needs a large amount of tap water or middle water consumption in the newborn process, follow-up filter-press dehydration equipment is not had additionally to increase load and the consumption of mud handling capacity; Powdery amendment powder in the preparation emulsion process, produce heat to mud in the modifying function of enzyme be utilized effectively; Change existing emulsion preparation and add processing method, appliance arrangement is simple in structure, and is easy and simple to handle, safeguards laborsavingly, and the area that saves space reduces and invests and working cost; The mud amount is advanced in the sludge conditioning pond and amendment solution dosage carries out in proportion synchronously, shortens the process time; Change the big volume of original secondary and mix form, in mud and amendment course of conveying, increase line mixer, the preparation of amendment emulsion and the throwing device of the little volume mixing device of two covers, the implementation level Four is mixed, effect is more obvious, reduce manpower, power, amendment, devices consume, reduce working cost; The using PLC programmable control system, the level of automation height, it is more convenient to operate.
Description of drawings
Fig. 1 is the structural representation of process unit of the present invention.
Embodiment
Describe in further detail below in conjunction with accompanying drawing and the present invention of embodiment:
Embodiment, as shown in Figure 1, the multistage hybrid technique of Sludge Chemical Conditioning may further comprise the steps:
The first step: the mud in the sludge sump 9 is entered line mixer 6 with constant rate by advancing mud pipeline 7 with advancing dredge pump 8, open amendment solution throwing device 11, volume pump 10 simultaneously, amendment solution is transported to carries out one-level synchronously with mud in the line mixer 6 and mix, mixed mud flow in the sludge conditioning pond 4 through line mixer 6 outlet conduits, open the some time, carry out secondary by the conditioning agitator of installing in the sludge conditioning pond 4 41 and mix;
Second step: after secondary mixes end, open powdery amendment feed bin 1, open the preparation of powdery amendment emulsion and throwing device 3, intake pump 33 extract to be transferred in the sludge conditioning pond 4 the mixed mud of secondary with constant rate, open powdery amendment feed bin 1 bottom discharge port, inlet amount is by the weighing device control that is installed on the powdery amendment feed bin 1, the discharge port that powder enters transfer roller 2 opening for feeds of installing the bottom and is transported to specified location is added in the opening for feed of the preparation of powdery amendment emulsion and throwing device 3, the mixed mud of secondary and powder stir realization in the preparation of powdery amendment emulsion and throwing device 3 mixes for three grades, overflow to voluntarily in the sludge conditioning pond 4 by the emulsion discharge pipe 35 of powdery amendment emulsion preparation with throwing device 3 afterwards, carrying out level Four by the conditioning agitator of having opened in the sludge conditioning pond 4 41 mixes, so far the powdery amendment adds end, mixing of 41 some times of conditioning agitator in sludge conditioning pond 4 again, the multistage hybrid technique of Sludge Chemical Conditioning is finished.
Powdery amendment emulsion preparation in the described step 2 comprises stirred pot 30 with throwing device 3, be provided with the newborn agitator 32 of system in the stirred pot 30, make newborn agitator 32 and be provided with the newborn agitator motor of system and speed reduction unit 31, the mid-way is connected with inlet channel 34 and emulsion discharge pipe 35 on stirred pot 30 sidewalls, the upper surface of stirred pot 30 also is connected with dedusting outlet conduit 36, inlet channel 34 links to each other with stirred pot 30 sidewalls by intake pump 33, the preparation of amendment emulsion is connected with powdery amendment transfer roller 2 with opening for feed place, throwing device 3 upper end, and the other end of powdery amendment transfer roller 2 is connected with powdery amendment feed bin 1.
Described one and step 2 in sludge conditioning pond 4 be provided with liquidometer 43.
Described powdery amendment feed bin 1, transfer roller 2, conditioning agitator 41, system newborn agitator 32, intake pump 33, advance dredge pump 8 and volume pump 10, liquidometer 43 are all controlled by PLC central controller 5.
Sludge conditioning pond 4 in the described the first step is two or more.
Amendment solution throwing device 11 in the described step 1 is connected with amendment formulations prepared from solutions device 12, and amendment formulations prepared from solutions device 12 is prepared into amendment solution with the solid, powdery amendment and is delivered in the amendment solution throwing device 11 stand-by.
Implement the device of the technology of the present invention, comprise powdery amendment feed bin 1, transfer roller 2, sludge conditioning pond 4, be provided with conditioning agitator 41 in the sludge conditioning pond 4, sludge conditioning pond 4 is provided with conditioning agitator motor and speed reduction unit 42, mud enters in the sludge conditioning pond 4 in sludge sump 9 by advancing mud pipeline 7, the top in described sludge conditioning pond 4 is connected with the preparation of powdery amendment emulsion and throwing device 3, and described sludge conditioning pond 4 also is connected with amendment solution throwing device 11.
The other end of amendment solution throwing device 11 is connected with amendment formulations prepared from solutions device 12.
4 upper ends, sludge conditioning pond are connected with line mixer 6, and the mud in the sludge sump 9 enters in the line mixer 6 after mud pipeline 7 links to each other with advancing by advancing dredge pump 8; Amendment solution in the amendment solution throwing device 11 enters in the line mixer 6 after by volume pump 10.
Powdery amendment feed bin, transfer roller, conditioning agitator motor and speed reduction unit 42, system newborn agitator motor and speed reduction unit 31, liquidometer 43, intake pump 33, advance dredge pump 8 and volume pump 10, liquid level machine all are electrically connected with PLC central controller 5, the realization centralized Control.
In a word, the above only is preferred embodiment of the present invention, and all equalizations of doing according to the present patent application claim change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (6)
1. the multistage hybrid technique of Sludge Chemical Conditioning is characterized in that may further comprise the steps:
The first step: the mud in the sludge sump (9) is entered line mixer (6) with constant rate by advancing mud pipeline (7) with advancing dredge pump (8), open amendment solution throwing device (11), volume pump (10) simultaneously, amendment solution is transported to carries out one-level synchronously with mud in the line mixer (6) and mix, mixed mud flow in the sludge conditioning pond (4) through line mixer (6) outlet conduit, carries out secondary by the conditioning agitator of installing in sludge conditioning pond (4) (41) and mixes;
Second step: after secondary mixes end, open powdery amendment feed bin (1), open the preparation of powdery amendment emulsion and throwing device (3), intake pump (33) extracts in the sludge conditioning pond (4) the mixed mud of secondary with constant rate, open powdery amendment feed bin (1) bottom discharge port, inlet amount is by the weighing device control that is installed on the powdery amendment feed bin (1), the discharge port that powder enters transfer roller (2) opening for feed of installing the bottom and is transported to specified location is added in the opening for feed of the preparation of powdery amendment emulsion and throwing device (3), the mixed mud of secondary and powder stir realization in the preparation of powdery amendment emulsion and throwing device (3) mixes for three grades, overflow to voluntarily in the sludge conditioning pond (4) by the emulsion discharge pipe (35) of powdery amendment emulsion preparation with throwing device (3) afterwards, carrying out level Four by the conditioning agitator of having opened in sludge conditioning pond (4) (41) mixes, so far the powdery amendment adds end, mixing of conditioning agitator (41) some time in sludge conditioning pond (4) again, the multistage hybrid technique of Sludge Chemical Conditioning is finished.
2. the multistage hybrid technique of Sludge Chemical Conditioning according to claim 1, it is characterized in that: the powdery amendment emulsion preparation in the described step 2 comprises stirred pot (30) with throwing device (3), be provided with system newborn agitator (32) in the stirred pot (30), make newborn agitator (32) and be provided with the newborn agitator motor of system and speed reduction unit (31), the mid-way is connected with inlet channel (34) and emulsion discharge pipe (35) on stirred pot (30) sidewall, the upper surface of stirred pot (30) also is connected with dedusting outlet conduit (36), inlet channel (34) links to each other with stirred pot (30) sidewall by intake pump (33), the preparation of amendment emulsion is connected with powdery amendment transfer roller (2) with opening for feed place, throwing device (3) upper end, and the other end of powdery amendment transfer roller (2) is connected with powdery amendment feed bin (1).
3. the multistage hybrid technique of Sludge Chemical Conditioning according to claim 2, it is characterized in that: the sludge conditioning pond (4) in described step 1 and the step 2 is provided with liquidometer (43).
4. the multistage hybrid technique of Sludge Chemical Conditioning according to claim 2 is characterized in that: described powdery amendment feed bin (1), transfer roller (2), conditioning agitator (41), make newborn agitator (32), intake pump (33), advance dredge pump (8) and volume pump (10), liquidometer (43) are all controlled by PLC central controller (5).
5. the multistage hybrid technique of Sludge Chemical Conditioning according to claim 1 is characterized in that: the sludge conditioning pond (4) in the described the first step is two or more.
6. the multistage hybrid technique of Sludge Chemical Conditioning according to claim 1, it is characterized in that: the amendment solution throwing device (11) in the described step 1 is connected with amendment formulations prepared from solutions device (12), and amendment formulations prepared from solutions device (12) is prepared into amendment solution with the solid, powdery amendment and is delivered in the amendment solution throwing device (11) stand-by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210022028.6A CN103241920B (en) | 2012-02-01 | 2012-02-01 | Chemical conditioning multistage mixing technology of sludge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210022028.6A CN103241920B (en) | 2012-02-01 | 2012-02-01 | Chemical conditioning multistage mixing technology of sludge |
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| CN103241920A true CN103241920A (en) | 2013-08-14 |
| CN103241920B CN103241920B (en) | 2014-04-16 |
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| CN201210022028.6A Expired - Fee Related CN103241920B (en) | 2012-02-01 | 2012-02-01 | Chemical conditioning multistage mixing technology of sludge |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310735A (en) * | 2014-11-10 | 2015-01-28 | 饶宾期 | Movable extracting and cleaning device for sewage and sludge in water |
| CN104692611A (en) * | 2015-02-15 | 2015-06-10 | 南京中衡元环保设备有限公司 | Waste catalyst mud water dehydration treatment equipment and waste catalyst mud water dehydration treatment method |
| CN106316056A (en) * | 2015-09-09 | 2017-01-11 | 无锡亮慧环保机械有限公司 | Sludge chemical conditioning mixing pipe structure |
| CN107216015A (en) * | 2017-07-11 | 2017-09-29 | 江苏坤泽科技股份有限公司 | A kind of method of mud stirring quantitative feeding mixing |
| CN107226598A (en) * | 2017-08-03 | 2017-10-03 | 福建润土工程科技有限公司 | One-stop mud disposal system |
| CN107935354A (en) * | 2016-10-13 | 2018-04-20 | 光大水务（深圳）有限公司 | Sewage sludge continuous band and the complete processing system of heat pump desiccation and processing method |
| CN108611253A (en) * | 2018-05-03 | 2018-10-02 | 天津亿利科能源科技发展股份有限公司 | A kind of salt tolerant Black Liquor with Efficient Bacteria activated sludge prepares storage device and breeding method |
| CN110240385A (en) * | 2019-07-17 | 2019-09-17 | 上海同臣环保有限公司 | A kind of on-line continuous opsonic reaction device for deep sludge dewatering process mud chemical conditioning |
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Patent Citations (5)
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| RU2145580C1 (en) * | 1998-11-10 | 2000-02-20 | Предприятие "Кубаньгазпром" | Bore mud neutralizing and utilizing apparatus |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310735A (en) * | 2014-11-10 | 2015-01-28 | 饶宾期 | Movable extracting and cleaning device for sewage and sludge in water |
| CN104692611A (en) * | 2015-02-15 | 2015-06-10 | 南京中衡元环保设备有限公司 | Waste catalyst mud water dehydration treatment equipment and waste catalyst mud water dehydration treatment method |
| CN106316056A (en) * | 2015-09-09 | 2017-01-11 | 无锡亮慧环保机械有限公司 | Sludge chemical conditioning mixing pipe structure |
| CN107935354A (en) * | 2016-10-13 | 2018-04-20 | 光大水务（深圳）有限公司 | Sewage sludge continuous band and the complete processing system of heat pump desiccation and processing method |
| CN107216015A (en) * | 2017-07-11 | 2017-09-29 | 江苏坤泽科技股份有限公司 | A kind of method of mud stirring quantitative feeding mixing |
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| CN108611253A (en) * | 2018-05-03 | 2018-10-02 | 天津亿利科能源科技发展股份有限公司 | A kind of salt tolerant Black Liquor with Efficient Bacteria activated sludge prepares storage device and breeding method |
| CN110240385A (en) * | 2019-07-17 | 2019-09-17 | 上海同臣环保有限公司 | A kind of on-line continuous opsonic reaction device for deep sludge dewatering process mud chemical conditioning |
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|---|---|
| CN103241920B (en) | 2014-04-16 |
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